diff --git a/README.md b/README.md
index df61bda..c61d603 100644
--- a/README.md
+++ b/README.md
@@ -81,17 +81,17 @@ HOW TO USE
 $ babel /path/to/test/some_test.js > /path/to/build/some_test.js
 ```
 
-For example, with `babel-register` module and `.babelrc` above, you can run mocha without code generation steps.
+For example, with `@babel/register` module and `.babelrc` above, you can run mocha without code generation steps.
 
 ```
-$ $(npm bin)/mocha --require babel-register test/some_test.js
+$ $(npm bin)/mocha --require @babel/register test/some_test.js
 ```
 
 
 ### via [Babel API](https://babeljs.io/docs/usage/api/)
 
 ```javascript
-var babel = require('babel-core');
+var babel = require('@babel/core');
 var jsCode = fs.readFileSync('/path/to/test/some_test.js');
 var transformed = babel.transform(jsCode, {
     presets: [...],
@@ -104,7 +104,7 @@ console.log(transformed.code);
 ### via [Babel Require Hook](https://babeljs.io/docs/usage/require/)
 
 ```javascript
-require('babel-register')({
+require('@babel/register')({
     presets: [...],
     plugins: ['babel-plugin-espower']
 });
@@ -231,10 +231,10 @@ prepare `babel_hook.js` to transform tests.
 }
 ```
 
-Run `mocha` with `--require babel-register` option. You will see the power-assert output appears.
+Run `mocha` with `--require @babel/register` option. You will see the power-assert output appears.
 
 ```
-$ $(npm bin)/mocha --require babel-register test/demo_test.js
+$ $(npm bin)/mocha --require @babel/register test/demo_test.js
 
   ES6 demo
     1) Destructuring and TemplateLiteral
@@ -328,7 +328,7 @@ You can customize configs such as assertion patterns via [.babelrc](https://babe
 You can customize configs such as assertion patterns via [Babel API](https://babeljs.io/docs/usage/api/),
 
 ```javascript
-var babel = require('babel-core');
+var babel = require('@babel/core');
 var createEspowerPlugin = require('babel-plugin-espower/create');
 var jsCode = fs.readFileSync('/path/to/test/some_test.js');
 var transformed = babel.transform(jsCode, {
@@ -351,7 +351,7 @@ or via [Require Hook](https://babeljs.io/docs/usage/require/).
 
 ```javascript
 var createEspowerPlugin = require('babel-plugin-espower/create');
-require('babel-register')({
+require('@babel/register')({
     presets: [...],
     plugins: [
         createEspowerPlugin(babel, {
@@ -393,7 +393,7 @@ Configuration options for `babel-plugin-espower`. If not passed, default options
     astWhiteList: babel.types.BUILDER_KEYS,
     sourceRoot: process.cwd(),
     path: file.opts.filename,
-    sourceMap: file.opts.inputSourceMap
+    sourceMap: file.inputMap ? file.inputMap.toObject() : false
 }
 ```
 
diff --git a/index.js b/index.js
index 72e659d..472f163 100644
--- a/index.js
+++ b/index.js
@@ -12,6 +12,6 @@
 
 var createEspowerPlugin = require('./create');
 
-module.exports = function (babel) {
-    return createEspowerPlugin(babel);
+module.exports = function (babel, options) {
+    return createEspowerPlugin(babel, options);
 };
diff --git a/lib/babel-assertion-visitor.js b/lib/babel-assertion-visitor.js
index 0908467..034ec37 100644
--- a/lib/babel-assertion-visitor.js
+++ b/lib/babel-assertion-visitor.js
@@ -4,7 +4,7 @@ var EspowerLocationDetector = require('espower-location-detector');
 var estraverse = require('estraverse');
 var cloneWithWhitelist = require('espurify').cloneWithWhitelist;
 var babylon = require('babylon');
-var babelgen = require('babel-generator');
+var babelgen = require('@babel/generator');
 var assign = require('core-js/library/fn/object/assign');
 var define = require('./define-properties');
 var toBeCaptured = require('./to-be-captured');
@@ -163,7 +163,7 @@ BabelAssertionVisitor.prototype.parseCanonicalCode = function (file, code) {
 
     function doParse(wrapper) {
         var content = wrapper ? wrapper(code) : code;
-        var output = babylon.parse(content, assign({}, file.parserOpts, {tokens: true}));
+        var output = babylon.parse(content, assign({}, file.opts.parserOpts, {tokens: true}));
         if (wrapper) {
             ast = output.program.body[0].body;
             tokens = output.tokens.slice(6, -2);
diff --git a/lib/babel-espower-visitor.js b/lib/babel-espower-visitor.js
index 7f19f8f..06bb774 100644
--- a/lib/babel-espower-visitor.js
+++ b/lib/babel-espower-visitor.js
@@ -37,7 +37,7 @@ BabelEspowerVisitor.prototype.enter = function (nodePath) {
             // entering assertion
             var espowerOptions = assign({
                 path: file.opts.filename, // or opts.sourceFileName?
-                sourceMap: file.opts.inputSourceMap
+                sourceMap: file.inputMap ? file.inputMap.toObject() : false
             }, this.options);
             assertionVisitor = new BabelAssertionVisitor(this.babel, matcher, espowerOptions);
             assertionVisitor.enter(nodePath);
diff --git a/lib/create-espower-visitor.js b/lib/create-espower-visitor.js
index eab911a..15b67c4 100644
--- a/lib/create-espower-visitor.js
+++ b/lib/create-espower-visitor.js
@@ -7,12 +7,12 @@ var BabelEspowerVisitor = require('./babel-espower-visitor');
 module.exports = function createEspowerVisitor (babel, options) {
     return {
         visitor: {
-            Program: function (path, state) {
+            Program: function (path) {
                 var opts = assign(defaultOptions(), {
                     astWhiteList: babel.types.BUILDER_KEYS,
                     visitorKeys: babel.types.VISITOR_KEYS,
                     sourceRoot: process.cwd()
-                }, options, state.opts);
+                }, options);
                 var espowerVisitor = new BabelEspowerVisitor(babel, opts);
                 var innerVisitor = Object.keys(opts.visitorKeys).reduce(function (handlers, nodeType) {
                     handlers[nodeType] = {
@@ -25,7 +25,7 @@ module.exports = function createEspowerVisitor (babel, options) {
                     };
                     return handlers;
                 }, {});
-                path.traverse(innerVisitor, state);
+                path.traverse(innerVisitor);
             }
         }
     };
diff --git a/package.json b/package.json
index e264321..458639d 100644
--- a/package.json
+++ b/package.json
@@ -15,8 +15,8 @@
     }
   ],
   "dependencies": {
-    "babel-generator": "^6.1.0",
-    "babylon": "^6.1.0",
+    "@babel/generator": "^7.0.0-beta.34",
+    "babylon": "^7.0.0-beta.34",
     "call-matcher": "^1.0.0",
     "core-js": "^2.0.0",
     "espower-location-detector": "^1.0.0",
@@ -24,10 +24,10 @@
     "estraverse": "^4.1.1"
   },
   "devDependencies": {
-    "babel-core": "^6.1.0",
-    "babel-preset-es2015": "^6.1.2",
-    "babel-preset-react": "^6.1.2",
-    "babel-preset-stage-2": "^6.1.2",
+    "@babel/core": "^7.0.0-beta.34",
+    "@babel/preset-es2015": "^7.0.0-beta.34",
+    "@babel/preset-react": "^7.0.0-beta.34",
+    "@babel/preset-stage-2": "^7.0.0-beta.34",
     "mocha": "^3.0.0"
   },
   "directories": {
diff --git a/test/fixtures-with-presets-test.js b/test/fixtures-with-presets-test.js
index d298fba..1d41b79 100644
--- a/test/fixtures-with-presets-test.js
+++ b/test/fixtures-with-presets-test.js
@@ -1,7 +1,7 @@
 var assert = require('assert');
 var fs = require('fs');
 var path = require('path');
-var babel = require('babel-core');
+var babel = require('@babel/core');
 var assign = require('core-js/library/fn/object/assign');
 var createEspowerPlugin = require('../create');
 
@@ -13,9 +13,9 @@ function testTransform (fixtureName, extraSuffix, extraOptions) {
         var actualFilepath = path.resolve(__dirname, 'fixtures', fixtureName, 'actual' + suffix + '.js');
         var result = babel.transformFileSync(fixtureFilepath, assign({
             presets: [
-                'es2015',
-                'stage-2',
-                'react'
+                '@babel/es2015',
+                '@babel/stage-2',
+                '@babel/react'
             ],
             plugins: [
                 createEspowerPlugin(babel, {
diff --git a/test/fixtures/ArrayExpression/expected-presets-es2015.js b/test/fixtures/ArrayExpression/expected-presets-es2015.js
index e50c2c2..299a8f4 100644
--- a/test/fixtures/ArrayExpression/expected-presets-es2015.js
+++ b/test/fixtures/ArrayExpression/expected-presets-es2015.js
@@ -1,44 +1,42 @@
 'use strict';
 
-var _typeof = typeof Symbol === "function" && typeof Symbol.iterator === "symbol" ? function (obj) { return typeof obj; } : function (obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; };
-
-var _powerAssertVisitorKeys = '{"ArrayExpression":["elements"],"AssignmentExpression":["left","right"],"BinaryExpression":["left","right"],"Directive":["value"],"DirectiveLiteral":[],"BlockStatement":["directives","body"],"BreakStatement":["label"],"CallExpression":["callee","arguments"],"CatchClause":["param","body"],"ConditionalExpression":["test","consequent","alternate"],"ContinueStatement":["label"],"DebuggerStatement":[],"DoWhileStatement":["test","body"],"EmptyStatement":[],"ExpressionStatement":["expression"],"File":["program"],"ForInStatement":["left","right","body"],"ForStatement":["init","test","update","body"],"FunctionDeclaration":["id","params","body","returnType","typeParameters"],"FunctionExpression":["id","params","body","returnType","typeParameters"],"Identifier":["typeAnnotation"],"IfStatement":["test","consequent","alternate"],"LabeledStatement":["label","body"],"StringLiteral":[],"NumericLiteral":[],"NullLiteral":[],"BooleanLiteral":[],"RegExpLiteral":[],"LogicalExpression":["left","right"],"MemberExpression":["object","property"],"NewExpression":["callee","arguments"],"Program":["directives","body"],"ObjectExpression":["properties"],"ObjectMethod":["key","params","body","decorators","returnType","typeParameters"],"ObjectProperty":["key","value","decorators"],"RestElement":["argument","typeAnnotation"],"ReturnStatement":["argument"],"SequenceExpression":["expressions"],"SwitchCase":["test","consequent"],"SwitchStatement":["discriminant","cases"],"ThisExpression":[],"ThrowStatement":["argument"],"TryStatement":["block","handler","finalizer"],"UnaryExpression":["argument"],"UpdateExpression":["argument"],"VariableDeclaration":["declarations"],"VariableDeclarator":["id","init"],"WhileStatement":["test","body"],"WithStatement":["object","body"],"AssignmentPattern":["left","right"],"ArrayPattern":["elements","typeAnnotation"],"ArrowFunctionExpression":["params","body","returnType","typeParameters"],"ClassBody":["body"],"ClassDeclaration":["id","body","superClass","mixins","typeParameters","superTypeParameters","implements","decorators"],"ClassExpression":["id","body","superClass","mixins","typeParameters","superTypeParameters","implements","decorators"],"ExportAllDeclaration":["source"],"ExportDefaultDeclaration":["declaration"],"ExportNamedDeclaration":["declaration","specifiers","source"],"ExportSpecifier":["local","exported"],"ForOfStatement":["left","right","body"],"ImportDeclaration":["specifiers","source"],"ImportDefaultSpecifier":["local"],"ImportNamespaceSpecifier":["local"],"ImportSpecifier":["local","imported"],"MetaProperty":["meta","property"],"ClassMethod":["key","params","body","decorators","returnType","typeParameters"],"ObjectPattern":["properties","typeAnnotation"],"SpreadElement":["argument"],"Super":[],"TaggedTemplateExpression":["tag","quasi"],"TemplateElement":[],"TemplateLiteral":["quasis","expressions"],"YieldExpression":["argument"],"AnyTypeAnnotation":[],"ArrayTypeAnnotation":["elementType"],"BooleanTypeAnnotation":[],"BooleanLiteralTypeAnnotation":[],"NullLiteralTypeAnnotation":[],"ClassImplements":["id","typeParameters"],"ClassProperty":["key","value","typeAnnotation","decorators"],"DeclareClass":["id","typeParameters","extends","body"],"DeclareFunction":["id"],"DeclareInterface":["id","typeParameters","extends","body"],"DeclareModule":["id","body"],"DeclareModuleExports":["typeAnnotation"],"DeclareTypeAlias":["id","typeParameters","right"],"DeclareOpaqueType":["id","typeParameters","supertype"],"DeclareVariable":["id"],"DeclareExportDeclaration":["declaration","specifiers","source"],"ExistentialTypeParam":[],"FunctionTypeAnnotation":["typeParameters","params","rest","returnType"],"FunctionTypeParam":["name","typeAnnotation"],"GenericTypeAnnotation":["id","typeParameters"],"InterfaceExtends":["id","typeParameters"],"InterfaceDeclaration":["id","typeParameters","extends","body"],"IntersectionTypeAnnotation":["types"],"MixedTypeAnnotation":[],"EmptyTypeAnnotation":[],"NullableTypeAnnotation":["typeAnnotation"],"NumericLiteralTypeAnnotation":[],"NumberTypeAnnotation":[],"StringLiteralTypeAnnotation":[],"StringTypeAnnotation":[],"ThisTypeAnnotation":[],"TupleTypeAnnotation":["types"],"TypeofTypeAnnotation":["argument"],"TypeAlias":["id","typeParameters","right"],"OpaqueType":["id","typeParameters","impltype","supertype"],"TypeAnnotation":["typeAnnotation"],"TypeCastExpression":["expression","typeAnnotation"],"TypeParameter":["bound"],"TypeParameterDeclaration":["params"],"TypeParameterInstantiation":["params"],"ObjectTypeAnnotation":["properties","indexers","callProperties"],"ObjectTypeCallProperty":["value"],"ObjectTypeIndexer":["id","key","value"],"ObjectTypeProperty":["key","value"],"ObjectTypeSpreadProperty":["argument"],"QualifiedTypeIdentifier":["id","qualification"],"UnionTypeAnnotation":["types"],"VoidTypeAnnotation":[],"JSXAttribute":["name","value"],"JSXClosingElement":["name"],"JSXElement":["openingElement","children","closingElement"],"JSXEmptyExpression":[],"JSXExpressionContainer":["expression"],"JSXSpreadChild":["expression"],"JSXIdentifier":[],"JSXMemberExpression":["object","property"],"JSXNamespacedName":["namespace","name"],"JSXOpeningElement":["name","attributes"],"JSXSpreadAttribute":["argument"],"JSXText":[],"Noop":[],"ParenthesizedExpression":["expression"],"AwaitExpression":["argument"],"ForAwaitStatement":["left","right","body"],"BindExpression":["object","callee"],"Import":[],"Decorator":["expression"],"DoExpression":["body"],"ExportDefaultSpecifier":["exported"],"ExportNamespaceSpecifier":["exported"],"RestProperty":["argument"],"SpreadProperty":["argument"]}',
+var _powerAssertVisitorKeys = "{\"ArrayExpression\":[\"elements\"],\"AssignmentExpression\":[\"left\",\"right\"],\"BinaryExpression\":[\"left\",\"right\"],\"Directive\":[\"value\"],\"DirectiveLiteral\":[],\"BlockStatement\":[\"directives\",\"body\"],\"BreakStatement\":[\"label\"],\"CallExpression\":[\"callee\",\"arguments\",\"typeParameters\"],\"CatchClause\":[\"param\",\"body\"],\"ConditionalExpression\":[\"test\",\"consequent\",\"alternate\"],\"ContinueStatement\":[\"label\"],\"DebuggerStatement\":[],\"DoWhileStatement\":[\"test\",\"body\"],\"EmptyStatement\":[],\"ExpressionStatement\":[\"expression\"],\"File\":[\"program\"],\"ForInStatement\":[\"left\",\"right\",\"body\"],\"ForStatement\":[\"init\",\"test\",\"update\",\"body\"],\"FunctionDeclaration\":[\"id\",\"params\",\"body\",\"returnType\",\"typeParameters\"],\"FunctionExpression\":[\"id\",\"params\",\"body\",\"returnType\",\"typeParameters\"],\"Identifier\":[\"typeAnnotation\"],\"IfStatement\":[\"test\",\"consequent\",\"alternate\"],\"LabeledStatement\":[\"label\",\"body\"],\"StringLiteral\":[],\"NumericLiteral\":[],\"NullLiteral\":[],\"BooleanLiteral\":[],\"RegExpLiteral\":[],\"LogicalExpression\":[\"left\",\"right\"],\"MemberExpression\":[\"object\",\"property\"],\"NewExpression\":[\"callee\",\"arguments\",\"typeParameters\"],\"Program\":[\"directives\",\"body\"],\"ObjectExpression\":[\"properties\"],\"ObjectMethod\":[\"key\",\"params\",\"body\",\"decorators\",\"returnType\",\"typeParameters\"],\"ObjectProperty\":[\"key\",\"value\",\"decorators\"],\"RestElement\":[\"argument\",\"typeAnnotation\"],\"ReturnStatement\":[\"argument\"],\"SequenceExpression\":[\"expressions\"],\"SwitchCase\":[\"test\",\"consequent\"],\"SwitchStatement\":[\"discriminant\",\"cases\"],\"ThisExpression\":[],\"ThrowStatement\":[\"argument\"],\"TryStatement\":[\"block\",\"handler\",\"finalizer\"],\"UnaryExpression\":[\"argument\"],\"UpdateExpression\":[\"argument\"],\"VariableDeclaration\":[\"declarations\"],\"VariableDeclarator\":[\"id\",\"init\"],\"WhileStatement\":[\"test\",\"body\"],\"WithStatement\":[\"object\",\"body\"],\"AssignmentPattern\":[\"left\",\"right\"],\"ArrayPattern\":[\"elements\",\"typeAnnotation\"],\"ArrowFunctionExpression\":[\"params\",\"body\",\"returnType\",\"typeParameters\"],\"ClassBody\":[\"body\"],\"ClassDeclaration\":[\"id\",\"body\",\"superClass\",\"mixins\",\"typeParameters\",\"superTypeParameters\",\"implements\",\"decorators\"],\"ClassExpression\":[\"id\",\"body\",\"superClass\",\"mixins\",\"typeParameters\",\"superTypeParameters\",\"implements\",\"decorators\"],\"ExportAllDeclaration\":[\"source\"],\"ExportDefaultDeclaration\":[\"declaration\"],\"ExportNamedDeclaration\":[\"declaration\",\"specifiers\",\"source\"],\"ExportSpecifier\":[\"local\",\"exported\"],\"ForOfStatement\":[\"left\",\"right\",\"body\"],\"ImportDeclaration\":[\"specifiers\",\"source\"],\"ImportDefaultSpecifier\":[\"local\"],\"ImportNamespaceSpecifier\":[\"local\"],\"ImportSpecifier\":[\"local\",\"imported\"],\"MetaProperty\":[\"meta\",\"property\"],\"ClassMethod\":[\"key\",\"params\",\"body\",\"decorators\",\"returnType\",\"typeParameters\"],\"ObjectPattern\":[\"properties\",\"typeAnnotation\"],\"SpreadElement\":[\"argument\"],\"Super\":[],\"TaggedTemplateExpression\":[\"tag\",\"quasi\"],\"TemplateElement\":[],\"TemplateLiteral\":[\"quasis\",\"expressions\"],\"YieldExpression\":[\"argument\"],\"AnyTypeAnnotation\":[],\"ArrayTypeAnnotation\":[\"elementType\"],\"BooleanTypeAnnotation\":[],\"BooleanLiteralTypeAnnotation\":[],\"NullLiteralTypeAnnotation\":[],\"ClassImplements\":[\"id\",\"typeParameters\"],\"DeclareClass\":[\"id\",\"typeParameters\",\"extends\",\"body\"],\"DeclareFunction\":[\"id\"],\"DeclareInterface\":[\"id\",\"typeParameters\",\"extends\",\"body\"],\"DeclareModule\":[\"id\",\"body\"],\"DeclareModuleExports\":[\"typeAnnotation\"],\"DeclareTypeAlias\":[\"id\",\"typeParameters\",\"right\"],\"DeclareOpaqueType\":[\"id\",\"typeParameters\",\"supertype\"],\"DeclareVariable\":[\"id\"],\"DeclareExportDeclaration\":[\"declaration\",\"specifiers\",\"source\"],\"DeclareExportAllDeclaration\":[\"source\"],\"DeclaredPredicate\":[\"value\"],\"ExistsTypeAnnotation\":[],\"FunctionTypeAnnotation\":[\"typeParameters\",\"params\",\"rest\",\"returnType\"],\"FunctionTypeParam\":[\"name\",\"typeAnnotation\"],\"GenericTypeAnnotation\":[\"id\",\"typeParameters\"],\"InferredPredicate\":[],\"InterfaceExtends\":[\"id\",\"typeParameters\"],\"InterfaceDeclaration\":[\"id\",\"typeParameters\",\"extends\",\"body\"],\"IntersectionTypeAnnotation\":[\"types\"],\"MixedTypeAnnotation\":[],\"EmptyTypeAnnotation\":[],\"NullableTypeAnnotation\":[\"typeAnnotation\"],\"NumberLiteralTypeAnnotation\":[],\"NumberTypeAnnotation\":[],\"ObjectTypeAnnotation\":[\"properties\",\"indexers\",\"callProperties\"],\"ObjectTypeCallProperty\":[\"value\"],\"ObjectTypeIndexer\":[\"id\",\"key\",\"value\"],\"ObjectTypeProperty\":[\"key\",\"value\"],\"ObjectTypeSpreadProperty\":[\"argument\"],\"OpaqueType\":[\"id\",\"typeParameters\",\"supertype\",\"impltype\"],\"QualifiedTypeIdentifier\":[\"id\",\"qualification\"],\"StringLiteralTypeAnnotation\":[],\"StringTypeAnnotation\":[],\"ThisTypeAnnotation\":[],\"TupleTypeAnnotation\":[\"types\"],\"TypeofTypeAnnotation\":[\"argument\"],\"TypeAlias\":[\"id\",\"typeParameters\",\"right\"],\"TypeAnnotation\":[\"typeAnnotation\"],\"TypeCastExpression\":[\"expression\",\"typeAnnotation\"],\"TypeParameter\":[\"bound\",\"default\"],\"TypeParameterDeclaration\":[\"params\"],\"TypeParameterInstantiation\":[\"params\"],\"UnionTypeAnnotation\":[\"types\"],\"VoidTypeAnnotation\":[],\"JSXAttribute\":[\"name\",\"value\"],\"JSXClosingElement\":[\"name\"],\"JSXElement\":[\"openingElement\",\"children\",\"closingElement\"],\"JSXEmptyExpression\":[],\"JSXExpressionContainer\":[\"expression\"],\"JSXSpreadChild\":[\"expression\"],\"JSXIdentifier\":[],\"JSXMemberExpression\":[\"object\",\"property\"],\"JSXNamespacedName\":[\"namespace\",\"name\"],\"JSXOpeningElement\":[\"name\",\"attributes\"],\"JSXSpreadAttribute\":[\"argument\"],\"JSXText\":[],\"JSXFragment\":[\"openingFragment\",\"children\",\"closingFragment\"],\"JSXOpeningFragment\":[],\"JSXClosingFragment\":[],\"Noop\":[],\"ParenthesizedExpression\":[\"expression\"],\"AwaitExpression\":[\"argument\"],\"BindExpression\":[\"object\",\"callee\"],\"ClassProperty\":[\"key\",\"value\",\"typeAnnotation\",\"decorators\"],\"Import\":[],\"Decorator\":[\"expression\"],\"DoExpression\":[\"body\"],\"ExportDefaultSpecifier\":[\"exported\"],\"ExportNamespaceSpecifier\":[\"exported\"],\"TSParameterProperty\":[\"parameter\"],\"TSDeclareFunction\":[\"id\",\"typeParameters\",\"params\",\"returnType\"],\"TSDeclareMethod\":[\"decorators\",\"key\",\"typeParameters\",\"params\",\"returnType\"],\"TSQualifiedName\":[\"left\",\"right\"],\"TSCallSignatureDeclaration\":[\"typeParameters\",\"parameters\",\"typeAnnotation\"],\"TSConstructSignatureDeclaration\":[\"typeParameters\",\"parameters\",\"typeAnnotation\"],\"TSPropertySignature\":[\"key\",\"typeAnnotation\",\"initializer\"],\"TSMethodSignature\":[\"key\",\"typeParameters\",\"parameters\",\"typeAnnotation\"],\"TSIndexSignature\":[\"parameters\",\"typeAnnotation\"],\"TSAnyKeyword\":[],\"TSNumberKeyword\":[],\"TSObjectKeyword\":[],\"TSBooleanKeyword\":[],\"TSStringKeyword\":[],\"TSSymbolKeyword\":[],\"TSVoidKeyword\":[],\"TSUndefinedKeyword\":[],\"TSNullKeyword\":[],\"TSNeverKeyword\":[],\"TSThisType\":[],\"TSFunctionType\":[\"typeParameters\",\"typeAnnotation\"],\"TSConstructorType\":[\"typeParameters\",\"typeAnnotation\"],\"TSTypeReference\":[\"typeName\",\"typeParameters\"],\"TSTypePredicate\":[\"parameterName\",\"typeAnnotation\"],\"TSTypeQuery\":[\"exprName\"],\"TSTypeLiteral\":[\"members\"],\"TSArrayType\":[\"elementType\"],\"TSTupleType\":[\"elementTypes\"],\"TSUnionType\":[\"types\"],\"TSIntersectionType\":[\"types\"],\"TSParenthesizedType\":[\"typeAnnotation\"],\"TSTypeOperator\":[\"typeAnnotation\"],\"TSIndexedAccessType\":[\"objectType\",\"indexType\"],\"TSMappedType\":[\"typeParameter\",\"typeAnnotation\"],\"TSLiteralType\":[\"literal\"],\"TSExpressionWithTypeArguments\":[\"expression\",\"typeParameters\"],\"TSInterfaceDeclaration\":[\"id\",\"typeParameters\",\"extends\",\"body\"],\"TSInterfaceBody\":[\"body\"],\"TSTypeAliasDeclaration\":[\"id\",\"typeParameters\",\"typeAnnotation\"],\"TSAsExpression\":[\"expression\",\"typeAnnotation\"],\"TSTypeAssertion\":[\"typeAnnotation\",\"expression\"],\"TSEnumDeclaration\":[\"id\",\"members\"],\"TSEnumMember\":[\"id\",\"initializer\"],\"TSModuleDeclaration\":[\"id\",\"body\"],\"TSModuleBlock\":[\"body\"],\"TSImportEqualsDeclaration\":[\"id\",\"moduleReference\"],\"TSExternalModuleReference\":[\"expression\"],\"TSNonNullExpression\":[\"expression\"],\"TSExportAssignment\":[\"expression\"],\"TSNamespaceExportDeclaration\":[\"id\"],\"TSTypeAnnotation\":[\"typeAnnotation\"],\"TSTypeParameterInstantiation\":[\"params\"],\"TSTypeParameterDeclaration\":[\"params\"],\"TSTypeParameter\":[\"constraint\",\"default\"]}",
     _powerAssertRecorder = function () { function PowerAssertRecorder() { this.captured = []; } PowerAssertRecorder.prototype._capt = function _capt(value, espath) { this.captured.push({ value: value, espath: espath }); return value; }; PowerAssertRecorder.prototype._expr = function _expr(value, source) { var capturedValues = this.captured; this.captured = []; return { powerAssertContext: { value: value, events: capturedValues }, source: source }; }; return PowerAssertRecorder; }(),
     _rec = new _powerAssertRecorder(),
     _rec2 = new _powerAssertRecorder(),
     _rec3 = new _powerAssertRecorder(),
     _rec4 = new _powerAssertRecorder();
 
-assert(_rec._expr(_rec._capt([_rec._capt(foo, 'arguments/0/elements/0'), _rec._capt(bar, 'arguments/0/elements/1')], 'arguments/0'), {
-  content: 'assert([foo, bar])',
-  filepath: 'test/fixtures/ArrayExpression/fixture.js',
+function _typeof(obj) { if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }
+
+assert(_rec._expr(_rec._capt([_rec._capt(foo, "arguments/0/elements/0"), _rec._capt(bar, "arguments/0/elements/1")], "arguments/0"), {
+  content: "assert([foo, bar])",
+  filepath: "test/fixtures/ArrayExpression/fixture.js",
   line: 3,
-  ast: '{"type":"CallExpression","callee":{"type":"Identifier","name":"assert","range":[0,6]},"arguments":[{"type":"ArrayExpression","elements":[{"type":"Identifier","name":"foo","range":[8,11]},{"type":"Identifier","name":"bar","range":[13,16]}],"range":[7,17]}],"range":[0,18]}',
-  tokens: '[{"type":{"label":"name"},"value":"assert","range":[0,6]},{"type":{"label":"("},"range":[6,7]},{"type":{"label":"["},"range":[7,8]},{"type":{"label":"name"},"value":"foo","range":[8,11]},{"type":{"label":","},"range":[11,12]},{"type":{"label":"name"},"value":"bar","range":[13,16]},{"type":{"label":"]"},"range":[16,17]},{"type":{"label":")"},"range":[17,18]}]',
+  ast: "{\"type\":\"CallExpression\",\"callee\":{\"type\":\"Identifier\",\"name\":\"assert\",\"range\":[0,6]},\"arguments\":[{\"type\":\"ArrayExpression\",\"elements\":[{\"type\":\"Identifier\",\"name\":\"foo\",\"range\":[8,11]},{\"type\":\"Identifier\",\"name\":\"bar\",\"range\":[13,16]}],\"range\":[7,17]}],\"range\":[0,18]}",
+  tokens: "[{\"type\":{\"label\":\"name\"},\"value\":\"assert\",\"range\":[0,6]},{\"type\":{\"label\":\"(\"},\"range\":[6,7]},{\"type\":{\"label\":\"[\"},\"range\":[7,8]},{\"type\":{\"label\":\"name\"},\"value\":\"foo\",\"range\":[8,11]},{\"type\":{\"label\":\",\"},\"range\":[11,12]},{\"type\":{\"label\":\"name\"},\"value\":\"bar\",\"range\":[13,16]},{\"type\":{\"label\":\"]\"},\"range\":[16,17]},{\"type\":{\"label\":\")\"},\"range\":[17,18]}]",
   visitorKeys: _powerAssertVisitorKeys
 }));
-
-assert(_rec2._expr(_rec2._capt(_rec2._capt(_typeof(_rec2._capt([_rec2._capt([_rec2._capt(_rec2._capt(foo, 'arguments/0/left/argument/elements/0/elements/0/object').bar, 'arguments/0/left/argument/elements/0/elements/0'), _rec2._capt(baz(_rec2._capt(moo, 'arguments/0/left/argument/elements/0/elements/1/arguments/0')), 'arguments/0/left/argument/elements/0/elements/1')], 'arguments/0/left/argument/elements/0'), _rec2._capt(+_rec2._capt(fourStr, 'arguments/0/left/argument/elements/1/argument'), 'arguments/0/left/argument/elements/1')], 'arguments/0/left/argument')), 'arguments/0/left') === 'number', 'arguments/0'), {
-  content: 'assert(typeof [[foo.bar, baz(moo)], +fourStr] === \'number\')',
-  filepath: 'test/fixtures/ArrayExpression/fixture.js',
+assert(_rec2._expr(_rec2._capt(_rec2._capt(_typeof(_rec2._capt([_rec2._capt([_rec2._capt(_rec2._capt(foo, "arguments/0/left/argument/elements/0/elements/0/object").bar, "arguments/0/left/argument/elements/0/elements/0"), _rec2._capt(baz(_rec2._capt(moo, "arguments/0/left/argument/elements/0/elements/1/arguments/0")), "arguments/0/left/argument/elements/0/elements/1")], "arguments/0/left/argument/elements/0"), _rec2._capt(+_rec2._capt(fourStr, "arguments/0/left/argument/elements/1/argument"), "arguments/0/left/argument/elements/1")], "arguments/0/left/argument")), "arguments/0/left") === 'number', "arguments/0"), {
+  content: "assert(typeof [[foo.bar, baz(moo)], +fourStr] === 'number')",
+  filepath: "test/fixtures/ArrayExpression/fixture.js",
   line: 5,
-  ast: '{"type":"CallExpression","callee":{"type":"Identifier","name":"assert","range":[0,6]},"arguments":[{"type":"BinaryExpression","operator":"===","left":{"type":"UnaryExpression","operator":"typeof","argument":{"type":"ArrayExpression","elements":[{"type":"ArrayExpression","elements":[{"type":"MemberExpression","object":{"type":"Identifier","name":"foo","range":[16,19]},"property":{"type":"Identifier","name":"bar","range":[20,23]},"computed":false,"range":[16,23]},{"type":"CallExpression","callee":{"type":"Identifier","name":"baz","range":[25,28]},"arguments":[{"type":"Identifier","name":"moo","range":[29,32]}],"range":[25,33]}],"range":[15,34]},{"type":"UnaryExpression","operator":"+","argument":{"type":"Identifier","name":"fourStr","range":[37,44]},"prefix":true,"range":[36,44]}],"range":[14,45]},"prefix":true,"range":[7,45]},"right":{"type":"StringLiteral","value":"number","range":[50,58]},"range":[7,58]}],"range":[0,59]}',
-  tokens: '[{"type":{"label":"name"},"value":"assert","range":[0,6]},{"type":{"label":"("},"range":[6,7]},{"type":{"label":"typeof"},"value":"typeof","range":[7,13]},{"type":{"label":"["},"range":[14,15]},{"type":{"label":"["},"range":[15,16]},{"type":{"label":"name"},"value":"foo","range":[16,19]},{"type":{"label":"."},"range":[19,20]},{"type":{"label":"name"},"value":"bar","range":[20,23]},{"type":{"label":","},"range":[23,24]},{"type":{"label":"name"},"value":"baz","range":[25,28]},{"type":{"label":"("},"range":[28,29]},{"type":{"label":"name"},"value":"moo","range":[29,32]},{"type":{"label":")"},"range":[32,33]},{"type":{"label":"]"},"range":[33,34]},{"type":{"label":","},"range":[34,35]},{"type":{"label":"+/-"},"value":"+","range":[36,37]},{"type":{"label":"name"},"value":"fourStr","range":[37,44]},{"type":{"label":"]"},"range":[44,45]},{"type":{"label":"==/!="},"value":"===","range":[46,49]},{"type":{"label":"string"},"value":"number","range":[50,58]},{"type":{"label":")"},"range":[58,59]}]',
+  ast: "{\"type\":\"CallExpression\",\"callee\":{\"type\":\"Identifier\",\"name\":\"assert\",\"range\":[0,6]},\"arguments\":[{\"type\":\"BinaryExpression\",\"operator\":\"===\",\"left\":{\"type\":\"UnaryExpression\",\"operator\":\"typeof\",\"argument\":{\"type\":\"ArrayExpression\",\"elements\":[{\"type\":\"ArrayExpression\",\"elements\":[{\"type\":\"MemberExpression\",\"object\":{\"type\":\"Identifier\",\"name\":\"foo\",\"range\":[16,19]},\"property\":{\"type\":\"Identifier\",\"name\":\"bar\",\"range\":[20,23]},\"computed\":false,\"range\":[16,23]},{\"type\":\"CallExpression\",\"callee\":{\"type\":\"Identifier\",\"name\":\"baz\",\"range\":[25,28]},\"arguments\":[{\"type\":\"Identifier\",\"name\":\"moo\",\"range\":[29,32]}],\"range\":[25,33]}],\"range\":[15,34]},{\"type\":\"UnaryExpression\",\"operator\":\"+\",\"argument\":{\"type\":\"Identifier\",\"name\":\"fourStr\",\"range\":[37,44]},\"prefix\":true,\"range\":[36,44]}],\"range\":[14,45]},\"prefix\":true,\"range\":[7,45]},\"right\":{\"type\":\"StringLiteral\",\"value\":\"number\",\"range\":[50,58]},\"range\":[7,58]}],\"range\":[0,59]}",
+  tokens: "[{\"type\":{\"label\":\"name\"},\"value\":\"assert\",\"range\":[0,6]},{\"type\":{\"label\":\"(\"},\"range\":[6,7]},{\"type\":{\"label\":\"typeof\"},\"value\":\"typeof\",\"range\":[7,13]},{\"type\":{\"label\":\"[\"},\"range\":[14,15]},{\"type\":{\"label\":\"[\"},\"range\":[15,16]},{\"type\":{\"label\":\"name\"},\"value\":\"foo\",\"range\":[16,19]},{\"type\":{\"label\":\".\"},\"range\":[19,20]},{\"type\":{\"label\":\"name\"},\"value\":\"bar\",\"range\":[20,23]},{\"type\":{\"label\":\",\"},\"range\":[23,24]},{\"type\":{\"label\":\"name\"},\"value\":\"baz\",\"range\":[25,28]},{\"type\":{\"label\":\"(\"},\"range\":[28,29]},{\"type\":{\"label\":\"name\"},\"value\":\"moo\",\"range\":[29,32]},{\"type\":{\"label\":\")\"},\"range\":[32,33]},{\"type\":{\"label\":\"]\"},\"range\":[33,34]},{\"type\":{\"label\":\",\"},\"range\":[34,35]},{\"type\":{\"label\":\"+/-\"},\"value\":\"+\",\"range\":[36,37]},{\"type\":{\"label\":\"name\"},\"value\":\"fourStr\",\"range\":[37,44]},{\"type\":{\"label\":\"]\"},\"range\":[44,45]},{\"type\":{\"label\":\"==/!=\"},\"value\":\"===\",\"range\":[46,49]},{\"type\":{\"label\":\"string\"},\"value\":\"number\",\"range\":[50,58]},{\"type\":{\"label\":\")\"},\"range\":[58,59]}]",
   visitorKeys: _powerAssertVisitorKeys
 }));
-
-assert.notDeepEqual(_rec3._expr(_rec3._capt([_rec3._capt(foo, 'arguments/0/elements/0'), _rec3._capt(bar, 'arguments/0/elements/1')], 'arguments/0'), {
-  content: 'assert.notDeepEqual([foo, bar], [hoge, fuga, piyo])',
-  filepath: 'test/fixtures/ArrayExpression/fixture.js',
+assert.notDeepEqual(_rec3._expr(_rec3._capt([_rec3._capt(foo, "arguments/0/elements/0"), _rec3._capt(bar, "arguments/0/elements/1")], "arguments/0"), {
+  content: "assert.notDeepEqual([foo, bar], [hoge, fuga, piyo])",
+  filepath: "test/fixtures/ArrayExpression/fixture.js",
   line: 7,
-  ast: '{"type":"CallExpression","callee":{"type":"MemberExpression","object":{"type":"Identifier","name":"assert","range":[0,6]},"property":{"type":"Identifier","name":"notDeepEqual","range":[7,19]},"computed":false,"range":[0,19]},"arguments":[{"type":"ArrayExpression","elements":[{"type":"Identifier","name":"foo","range":[21,24]},{"type":"Identifier","name":"bar","range":[26,29]}],"range":[20,30]},{"type":"ArrayExpression","elements":[{"type":"Identifier","name":"hoge","range":[33,37]},{"type":"Identifier","name":"fuga","range":[39,43]},{"type":"Identifier","name":"piyo","range":[45,49]}],"range":[32,50]}],"range":[0,51]}',
-  tokens: '[{"type":{"label":"name"},"value":"assert","range":[0,6]},{"type":{"label":"."},"range":[6,7]},{"type":{"label":"name"},"value":"notDeepEqual","range":[7,19]},{"type":{"label":"("},"range":[19,20]},{"type":{"label":"["},"range":[20,21]},{"type":{"label":"name"},"value":"foo","range":[21,24]},{"type":{"label":","},"range":[24,25]},{"type":{"label":"name"},"value":"bar","range":[26,29]},{"type":{"label":"]"},"range":[29,30]},{"type":{"label":","},"range":[30,31]},{"type":{"label":"["},"range":[32,33]},{"type":{"label":"name"},"value":"hoge","range":[33,37]},{"type":{"label":","},"range":[37,38]},{"type":{"label":"name"},"value":"fuga","range":[39,43]},{"type":{"label":","},"range":[43,44]},{"type":{"label":"name"},"value":"piyo","range":[45,49]},{"type":{"label":"]"},"range":[49,50]},{"type":{"label":")"},"range":[50,51]}]',
+  ast: "{\"type\":\"CallExpression\",\"callee\":{\"type\":\"MemberExpression\",\"object\":{\"type\":\"Identifier\",\"name\":\"assert\",\"range\":[0,6]},\"property\":{\"type\":\"Identifier\",\"name\":\"notDeepEqual\",\"range\":[7,19]},\"computed\":false,\"range\":[0,19]},\"arguments\":[{\"type\":\"ArrayExpression\",\"elements\":[{\"type\":\"Identifier\",\"name\":\"foo\",\"range\":[21,24]},{\"type\":\"Identifier\",\"name\":\"bar\",\"range\":[26,29]}],\"range\":[20,30]},{\"type\":\"ArrayExpression\",\"elements\":[{\"type\":\"Identifier\",\"name\":\"hoge\",\"range\":[33,37]},{\"type\":\"Identifier\",\"name\":\"fuga\",\"range\":[39,43]},{\"type\":\"Identifier\",\"name\":\"piyo\",\"range\":[45,49]}],\"range\":[32,50]}],\"range\":[0,51]}",
+  tokens: "[{\"type\":{\"label\":\"name\"},\"value\":\"assert\",\"range\":[0,6]},{\"type\":{\"label\":\".\"},\"range\":[6,7]},{\"type\":{\"label\":\"name\"},\"value\":\"notDeepEqual\",\"range\":[7,19]},{\"type\":{\"label\":\"(\"},\"range\":[19,20]},{\"type\":{\"label\":\"[\"},\"range\":[20,21]},{\"type\":{\"label\":\"name\"},\"value\":\"foo\",\"range\":[21,24]},{\"type\":{\"label\":\",\"},\"range\":[24,25]},{\"type\":{\"label\":\"name\"},\"value\":\"bar\",\"range\":[26,29]},{\"type\":{\"label\":\"]\"},\"range\":[29,30]},{\"type\":{\"label\":\",\"},\"range\":[30,31]},{\"type\":{\"label\":\"[\"},\"range\":[32,33]},{\"type\":{\"label\":\"name\"},\"value\":\"hoge\",\"range\":[33,37]},{\"type\":{\"label\":\",\"},\"range\":[37,38]},{\"type\":{\"label\":\"name\"},\"value\":\"fuga\",\"range\":[39,43]},{\"type\":{\"label\":\",\"},\"range\":[43,44]},{\"type\":{\"label\":\"name\"},\"value\":\"piyo\",\"range\":[45,49]},{\"type\":{\"label\":\"]\"},\"range\":[49,50]},{\"type\":{\"label\":\")\"},\"range\":[50,51]}]",
   visitorKeys: _powerAssertVisitorKeys
-}), _rec4._expr(_rec4._capt([_rec4._capt(hoge, 'arguments/1/elements/0'), _rec4._capt(fuga, 'arguments/1/elements/1'), _rec4._capt(piyo, 'arguments/1/elements/2')], 'arguments/1'), {
-  content: 'assert.notDeepEqual([foo, bar], [hoge, fuga, piyo])',
-  filepath: 'test/fixtures/ArrayExpression/fixture.js',
+}), _rec4._expr(_rec4._capt([_rec4._capt(hoge, "arguments/1/elements/0"), _rec4._capt(fuga, "arguments/1/elements/1"), _rec4._capt(piyo, "arguments/1/elements/2")], "arguments/1"), {
+  content: "assert.notDeepEqual([foo, bar], [hoge, fuga, piyo])",
+  filepath: "test/fixtures/ArrayExpression/fixture.js",
   line: 7,
-  ast: '{"type":"CallExpression","callee":{"type":"MemberExpression","object":{"type":"Identifier","name":"assert","range":[0,6]},"property":{"type":"Identifier","name":"notDeepEqual","range":[7,19]},"computed":false,"range":[0,19]},"arguments":[{"type":"ArrayExpression","elements":[{"type":"Identifier","name":"foo","range":[21,24]},{"type":"Identifier","name":"bar","range":[26,29]}],"range":[20,30]},{"type":"ArrayExpression","elements":[{"type":"Identifier","name":"hoge","range":[33,37]},{"type":"Identifier","name":"fuga","range":[39,43]},{"type":"Identifier","name":"piyo","range":[45,49]}],"range":[32,50]}],"range":[0,51]}',
-  tokens: '[{"type":{"label":"name"},"value":"assert","range":[0,6]},{"type":{"label":"."},"range":[6,7]},{"type":{"label":"name"},"value":"notDeepEqual","range":[7,19]},{"type":{"label":"("},"range":[19,20]},{"type":{"label":"["},"range":[20,21]},{"type":{"label":"name"},"value":"foo","range":[21,24]},{"type":{"label":","},"range":[24,25]},{"type":{"label":"name"},"value":"bar","range":[26,29]},{"type":{"label":"]"},"range":[29,30]},{"type":{"label":","},"range":[30,31]},{"type":{"label":"["},"range":[32,33]},{"type":{"label":"name"},"value":"hoge","range":[33,37]},{"type":{"label":","},"range":[37,38]},{"type":{"label":"name"},"value":"fuga","range":[39,43]},{"type":{"label":","},"range":[43,44]},{"type":{"label":"name"},"value":"piyo","range":[45,49]},{"type":{"label":"]"},"range":[49,50]},{"type":{"label":")"},"range":[50,51]}]',
+  ast: "{\"type\":\"CallExpression\",\"callee\":{\"type\":\"MemberExpression\",\"object\":{\"type\":\"Identifier\",\"name\":\"assert\",\"range\":[0,6]},\"property\":{\"type\":\"Identifier\",\"name\":\"notDeepEqual\",\"range\":[7,19]},\"computed\":false,\"range\":[0,19]},\"arguments\":[{\"type\":\"ArrayExpression\",\"elements\":[{\"type\":\"Identifier\",\"name\":\"foo\",\"range\":[21,24]},{\"type\":\"Identifier\",\"name\":\"bar\",\"range\":[26,29]}],\"range\":[20,30]},{\"type\":\"ArrayExpression\",\"elements\":[{\"type\":\"Identifier\",\"name\":\"hoge\",\"range\":[33,37]},{\"type\":\"Identifier\",\"name\":\"fuga\",\"range\":[39,43]},{\"type\":\"Identifier\",\"name\":\"piyo\",\"range\":[45,49]}],\"range\":[32,50]}],\"range\":[0,51]}",
+  tokens: "[{\"type\":{\"label\":\"name\"},\"value\":\"assert\",\"range\":[0,6]},{\"type\":{\"label\":\".\"},\"range\":[6,7]},{\"type\":{\"label\":\"name\"},\"value\":\"notDeepEqual\",\"range\":[7,19]},{\"type\":{\"label\":\"(\"},\"range\":[19,20]},{\"type\":{\"label\":\"[\"},\"range\":[20,21]},{\"type\":{\"label\":\"name\"},\"value\":\"foo\",\"range\":[21,24]},{\"type\":{\"label\":\",\"},\"range\":[24,25]},{\"type\":{\"label\":\"name\"},\"value\":\"bar\",\"range\":[26,29]},{\"type\":{\"label\":\"]\"},\"range\":[29,30]},{\"type\":{\"label\":\",\"},\"range\":[30,31]},{\"type\":{\"label\":\"[\"},\"range\":[32,33]},{\"type\":{\"label\":\"name\"},\"value\":\"hoge\",\"range\":[33,37]},{\"type\":{\"label\":\",\"},\"range\":[37,38]},{\"type\":{\"label\":\"name\"},\"value\":\"fuga\",\"range\":[39,43]},{\"type\":{\"label\":\",\"},\"range\":[43,44]},{\"type\":{\"label\":\"name\"},\"value\":\"piyo\",\"range\":[45,49]},{\"type\":{\"label\":\"]\"},\"range\":[49,50]},{\"type\":{\"label\":\")\"},\"range\":[50,51]}]",
   visitorKeys: _powerAssertVisitorKeys
 }));
diff --git a/test/fixtures/ArrayExpression/expected.js b/test/fixtures/ArrayExpression/expected.js
index d3024f1..2446e12 100644
--- a/test/fixtures/ArrayExpression/expected.js
+++ b/test/fixtures/ArrayExpression/expected.js
@@ -6,24 +6,22 @@ var _powerAssertRecorder = function () { function PowerAssertRecorder() { this.c
     _rec3 = new _powerAssertRecorder(),
     _rec4 = new _powerAssertRecorder();
 
-assert(_rec._expr(_rec._capt([_rec._capt(foo, 'arguments/0/elements/0'), _rec._capt(bar, 'arguments/0/elements/1')], 'arguments/0'), {
-  content: 'assert([foo, bar])',
-  filepath: 'test/fixtures/ArrayExpression/fixture.js',
+assert(_rec._expr(_rec._capt([_rec._capt(foo, "arguments/0/elements/0"), _rec._capt(bar, "arguments/0/elements/1")], "arguments/0"), {
+  content: "assert([foo, bar])",
+  filepath: "test/fixtures/ArrayExpression/fixture.js",
   line: 3
 }));
-
-assert(_rec2._expr(_rec2._capt(_rec2._capt(typeof _rec2._capt([_rec2._capt([_rec2._capt(_rec2._capt(foo, 'arguments/0/left/argument/elements/0/elements/0/object').bar, 'arguments/0/left/argument/elements/0/elements/0'), _rec2._capt(baz(_rec2._capt(moo, 'arguments/0/left/argument/elements/0/elements/1/arguments/0')), 'arguments/0/left/argument/elements/0/elements/1')], 'arguments/0/left/argument/elements/0'), _rec2._capt(+_rec2._capt(fourStr, 'arguments/0/left/argument/elements/1/argument'), 'arguments/0/left/argument/elements/1')], 'arguments/0/left/argument'), 'arguments/0/left') === 'number', 'arguments/0'), {
-  content: 'assert(typeof [[foo.bar, baz(moo)], +fourStr] === \'number\')',
-  filepath: 'test/fixtures/ArrayExpression/fixture.js',
+assert(_rec2._expr(_rec2._capt(_rec2._capt(typeof _rec2._capt([_rec2._capt([_rec2._capt(_rec2._capt(foo, "arguments/0/left/argument/elements/0/elements/0/object").bar, "arguments/0/left/argument/elements/0/elements/0"), _rec2._capt(baz(_rec2._capt(moo, "arguments/0/left/argument/elements/0/elements/1/arguments/0")), "arguments/0/left/argument/elements/0/elements/1")], "arguments/0/left/argument/elements/0"), _rec2._capt(+_rec2._capt(fourStr, "arguments/0/left/argument/elements/1/argument"), "arguments/0/left/argument/elements/1")], "arguments/0/left/argument"), "arguments/0/left") === 'number', "arguments/0"), {
+  content: "assert(typeof [[foo.bar, baz(moo)], +fourStr] === 'number')",
+  filepath: "test/fixtures/ArrayExpression/fixture.js",
   line: 5
 }));
-
-assert.notDeepEqual(_rec3._expr(_rec3._capt([_rec3._capt(foo, 'arguments/0/elements/0'), _rec3._capt(bar, 'arguments/0/elements/1')], 'arguments/0'), {
-  content: 'assert.notDeepEqual([foo, bar], [hoge, fuga, piyo])',
-  filepath: 'test/fixtures/ArrayExpression/fixture.js',
+assert.notDeepEqual(_rec3._expr(_rec3._capt([_rec3._capt(foo, "arguments/0/elements/0"), _rec3._capt(bar, "arguments/0/elements/1")], "arguments/0"), {
+  content: "assert.notDeepEqual([foo, bar], [hoge, fuga, piyo])",
+  filepath: "test/fixtures/ArrayExpression/fixture.js",
   line: 7
-}), _rec4._expr(_rec4._capt([_rec4._capt(hoge, 'arguments/1/elements/0'), _rec4._capt(fuga, 'arguments/1/elements/1'), _rec4._capt(piyo, 'arguments/1/elements/2')], 'arguments/1'), {
-  content: 'assert.notDeepEqual([foo, bar], [hoge, fuga, piyo])',
-  filepath: 'test/fixtures/ArrayExpression/fixture.js',
+}), _rec4._expr(_rec4._capt([_rec4._capt(hoge, "arguments/1/elements/0"), _rec4._capt(fuga, "arguments/1/elements/1"), _rec4._capt(piyo, "arguments/1/elements/2")], "arguments/1"), {
+  content: "assert.notDeepEqual([foo, bar], [hoge, fuga, piyo])",
+  filepath: "test/fixtures/ArrayExpression/fixture.js",
   line: 7
 }));
diff --git a/test/fixtures/ArrowFunctionExpression/expected-presets-es2015.js b/test/fixtures/ArrowFunctionExpression/expected-presets-es2015.js
index ad08124..3ae80a1 100644
--- a/test/fixtures/ArrowFunctionExpression/expected-presets-es2015.js
+++ b/test/fixtures/ArrowFunctionExpression/expected-presets-es2015.js
@@ -1,28 +1,28 @@
 'use strict';
 
-var _powerAssertVisitorKeys = '{"ArrayExpression":["elements"],"AssignmentExpression":["left","right"],"BinaryExpression":["left","right"],"Directive":["value"],"DirectiveLiteral":[],"BlockStatement":["directives","body"],"BreakStatement":["label"],"CallExpression":["callee","arguments"],"CatchClause":["param","body"],"ConditionalExpression":["test","consequent","alternate"],"ContinueStatement":["label"],"DebuggerStatement":[],"DoWhileStatement":["test","body"],"EmptyStatement":[],"ExpressionStatement":["expression"],"File":["program"],"ForInStatement":["left","right","body"],"ForStatement":["init","test","update","body"],"FunctionDeclaration":["id","params","body","returnType","typeParameters"],"FunctionExpression":["id","params","body","returnType","typeParameters"],"Identifier":["typeAnnotation"],"IfStatement":["test","consequent","alternate"],"LabeledStatement":["label","body"],"StringLiteral":[],"NumericLiteral":[],"NullLiteral":[],"BooleanLiteral":[],"RegExpLiteral":[],"LogicalExpression":["left","right"],"MemberExpression":["object","property"],"NewExpression":["callee","arguments"],"Program":["directives","body"],"ObjectExpression":["properties"],"ObjectMethod":["key","params","body","decorators","returnType","typeParameters"],"ObjectProperty":["key","value","decorators"],"RestElement":["argument","typeAnnotation"],"ReturnStatement":["argument"],"SequenceExpression":["expressions"],"SwitchCase":["test","consequent"],"SwitchStatement":["discriminant","cases"],"ThisExpression":[],"ThrowStatement":["argument"],"TryStatement":["block","handler","finalizer"],"UnaryExpression":["argument"],"UpdateExpression":["argument"],"VariableDeclaration":["declarations"],"VariableDeclarator":["id","init"],"WhileStatement":["test","body"],"WithStatement":["object","body"],"AssignmentPattern":["left","right"],"ArrayPattern":["elements","typeAnnotation"],"ArrowFunctionExpression":["params","body","returnType","typeParameters"],"ClassBody":["body"],"ClassDeclaration":["id","body","superClass","mixins","typeParameters","superTypeParameters","implements","decorators"],"ClassExpression":["id","body","superClass","mixins","typeParameters","superTypeParameters","implements","decorators"],"ExportAllDeclaration":["source"],"ExportDefaultDeclaration":["declaration"],"ExportNamedDeclaration":["declaration","specifiers","source"],"ExportSpecifier":["local","exported"],"ForOfStatement":["left","right","body"],"ImportDeclaration":["specifiers","source"],"ImportDefaultSpecifier":["local"],"ImportNamespaceSpecifier":["local"],"ImportSpecifier":["local","imported"],"MetaProperty":["meta","property"],"ClassMethod":["key","params","body","decorators","returnType","typeParameters"],"ObjectPattern":["properties","typeAnnotation"],"SpreadElement":["argument"],"Super":[],"TaggedTemplateExpression":["tag","quasi"],"TemplateElement":[],"TemplateLiteral":["quasis","expressions"],"YieldExpression":["argument"],"AnyTypeAnnotation":[],"ArrayTypeAnnotation":["elementType"],"BooleanTypeAnnotation":[],"BooleanLiteralTypeAnnotation":[],"NullLiteralTypeAnnotation":[],"ClassImplements":["id","typeParameters"],"ClassProperty":["key","value","typeAnnotation","decorators"],"DeclareClass":["id","typeParameters","extends","body"],"DeclareFunction":["id"],"DeclareInterface":["id","typeParameters","extends","body"],"DeclareModule":["id","body"],"DeclareModuleExports":["typeAnnotation"],"DeclareTypeAlias":["id","typeParameters","right"],"DeclareOpaqueType":["id","typeParameters","supertype"],"DeclareVariable":["id"],"DeclareExportDeclaration":["declaration","specifiers","source"],"ExistentialTypeParam":[],"FunctionTypeAnnotation":["typeParameters","params","rest","returnType"],"FunctionTypeParam":["name","typeAnnotation"],"GenericTypeAnnotation":["id","typeParameters"],"InterfaceExtends":["id","typeParameters"],"InterfaceDeclaration":["id","typeParameters","extends","body"],"IntersectionTypeAnnotation":["types"],"MixedTypeAnnotation":[],"EmptyTypeAnnotation":[],"NullableTypeAnnotation":["typeAnnotation"],"NumericLiteralTypeAnnotation":[],"NumberTypeAnnotation":[],"StringLiteralTypeAnnotation":[],"StringTypeAnnotation":[],"ThisTypeAnnotation":[],"TupleTypeAnnotation":["types"],"TypeofTypeAnnotation":["argument"],"TypeAlias":["id","typeParameters","right"],"OpaqueType":["id","typeParameters","impltype","supertype"],"TypeAnnotation":["typeAnnotation"],"TypeCastExpression":["expression","typeAnnotation"],"TypeParameter":["bound"],"TypeParameterDeclaration":["params"],"TypeParameterInstantiation":["params"],"ObjectTypeAnnotation":["properties","indexers","callProperties"],"ObjectTypeCallProperty":["value"],"ObjectTypeIndexer":["id","key","value"],"ObjectTypeProperty":["key","value"],"ObjectTypeSpreadProperty":["argument"],"QualifiedTypeIdentifier":["id","qualification"],"UnionTypeAnnotation":["types"],"VoidTypeAnnotation":[],"JSXAttribute":["name","value"],"JSXClosingElement":["name"],"JSXElement":["openingElement","children","closingElement"],"JSXEmptyExpression":[],"JSXExpressionContainer":["expression"],"JSXSpreadChild":["expression"],"JSXIdentifier":[],"JSXMemberExpression":["object","property"],"JSXNamespacedName":["namespace","name"],"JSXOpeningElement":["name","attributes"],"JSXSpreadAttribute":["argument"],"JSXText":[],"Noop":[],"ParenthesizedExpression":["expression"],"AwaitExpression":["argument"],"ForAwaitStatement":["left","right","body"],"BindExpression":["object","callee"],"Import":[],"Decorator":["expression"],"DoExpression":["body"],"ExportDefaultSpecifier":["exported"],"ExportNamespaceSpecifier":["exported"],"RestProperty":["argument"],"SpreadProperty":["argument"]}',
+var _powerAssertVisitorKeys = "{\"ArrayExpression\":[\"elements\"],\"AssignmentExpression\":[\"left\",\"right\"],\"BinaryExpression\":[\"left\",\"right\"],\"Directive\":[\"value\"],\"DirectiveLiteral\":[],\"BlockStatement\":[\"directives\",\"body\"],\"BreakStatement\":[\"label\"],\"CallExpression\":[\"callee\",\"arguments\",\"typeParameters\"],\"CatchClause\":[\"param\",\"body\"],\"ConditionalExpression\":[\"test\",\"consequent\",\"alternate\"],\"ContinueStatement\":[\"label\"],\"DebuggerStatement\":[],\"DoWhileStatement\":[\"test\",\"body\"],\"EmptyStatement\":[],\"ExpressionStatement\":[\"expression\"],\"File\":[\"program\"],\"ForInStatement\":[\"left\",\"right\",\"body\"],\"ForStatement\":[\"init\",\"test\",\"update\",\"body\"],\"FunctionDeclaration\":[\"id\",\"params\",\"body\",\"returnType\",\"typeParameters\"],\"FunctionExpression\":[\"id\",\"params\",\"body\",\"returnType\",\"typeParameters\"],\"Identifier\":[\"typeAnnotation\"],\"IfStatement\":[\"test\",\"consequent\",\"alternate\"],\"LabeledStatement\":[\"label\",\"body\"],\"StringLiteral\":[],\"NumericLiteral\":[],\"NullLiteral\":[],\"BooleanLiteral\":[],\"RegExpLiteral\":[],\"LogicalExpression\":[\"left\",\"right\"],\"MemberExpression\":[\"object\",\"property\"],\"NewExpression\":[\"callee\",\"arguments\",\"typeParameters\"],\"Program\":[\"directives\",\"body\"],\"ObjectExpression\":[\"properties\"],\"ObjectMethod\":[\"key\",\"params\",\"body\",\"decorators\",\"returnType\",\"typeParameters\"],\"ObjectProperty\":[\"key\",\"value\",\"decorators\"],\"RestElement\":[\"argument\",\"typeAnnotation\"],\"ReturnStatement\":[\"argument\"],\"SequenceExpression\":[\"expressions\"],\"SwitchCase\":[\"test\",\"consequent\"],\"SwitchStatement\":[\"discriminant\",\"cases\"],\"ThisExpression\":[],\"ThrowStatement\":[\"argument\"],\"TryStatement\":[\"block\",\"handler\",\"finalizer\"],\"UnaryExpression\":[\"argument\"],\"UpdateExpression\":[\"argument\"],\"VariableDeclaration\":[\"declarations\"],\"VariableDeclarator\":[\"id\",\"init\"],\"WhileStatement\":[\"test\",\"body\"],\"WithStatement\":[\"object\",\"body\"],\"AssignmentPattern\":[\"left\",\"right\"],\"ArrayPattern\":[\"elements\",\"typeAnnotation\"],\"ArrowFunctionExpression\":[\"params\",\"body\",\"returnType\",\"typeParameters\"],\"ClassBody\":[\"body\"],\"ClassDeclaration\":[\"id\",\"body\",\"superClass\",\"mixins\",\"typeParameters\",\"superTypeParameters\",\"implements\",\"decorators\"],\"ClassExpression\":[\"id\",\"body\",\"superClass\",\"mixins\",\"typeParameters\",\"superTypeParameters\",\"implements\",\"decorators\"],\"ExportAllDeclaration\":[\"source\"],\"ExportDefaultDeclaration\":[\"declaration\"],\"ExportNamedDeclaration\":[\"declaration\",\"specifiers\",\"source\"],\"ExportSpecifier\":[\"local\",\"exported\"],\"ForOfStatement\":[\"left\",\"right\",\"body\"],\"ImportDeclaration\":[\"specifiers\",\"source\"],\"ImportDefaultSpecifier\":[\"local\"],\"ImportNamespaceSpecifier\":[\"local\"],\"ImportSpecifier\":[\"local\",\"imported\"],\"MetaProperty\":[\"meta\",\"property\"],\"ClassMethod\":[\"key\",\"params\",\"body\",\"decorators\",\"returnType\",\"typeParameters\"],\"ObjectPattern\":[\"properties\",\"typeAnnotation\"],\"SpreadElement\":[\"argument\"],\"Super\":[],\"TaggedTemplateExpression\":[\"tag\",\"quasi\"],\"TemplateElement\":[],\"TemplateLiteral\":[\"quasis\",\"expressions\"],\"YieldExpression\":[\"argument\"],\"AnyTypeAnnotation\":[],\"ArrayTypeAnnotation\":[\"elementType\"],\"BooleanTypeAnnotation\":[],\"BooleanLiteralTypeAnnotation\":[],\"NullLiteralTypeAnnotation\":[],\"ClassImplements\":[\"id\",\"typeParameters\"],\"DeclareClass\":[\"id\",\"typeParameters\",\"extends\",\"body\"],\"DeclareFunction\":[\"id\"],\"DeclareInterface\":[\"id\",\"typeParameters\",\"extends\",\"body\"],\"DeclareModule\":[\"id\",\"body\"],\"DeclareModuleExports\":[\"typeAnnotation\"],\"DeclareTypeAlias\":[\"id\",\"typeParameters\",\"right\"],\"DeclareOpaqueType\":[\"id\",\"typeParameters\",\"supertype\"],\"DeclareVariable\":[\"id\"],\"DeclareExportDeclaration\":[\"declaration\",\"specifiers\",\"source\"],\"DeclareExportAllDeclaration\":[\"source\"],\"DeclaredPredicate\":[\"value\"],\"ExistsTypeAnnotation\":[],\"FunctionTypeAnnotation\":[\"typeParameters\",\"params\",\"rest\",\"returnType\"],\"FunctionTypeParam\":[\"name\",\"typeAnnotation\"],\"GenericTypeAnnotation\":[\"id\",\"typeParameters\"],\"InferredPredicate\":[],\"InterfaceExtends\":[\"id\",\"typeParameters\"],\"InterfaceDeclaration\":[\"id\",\"typeParameters\",\"extends\",\"body\"],\"IntersectionTypeAnnotation\":[\"types\"],\"MixedTypeAnnotation\":[],\"EmptyTypeAnnotation\":[],\"NullableTypeAnnotation\":[\"typeAnnotation\"],\"NumberLiteralTypeAnnotation\":[],\"NumberTypeAnnotation\":[],\"ObjectTypeAnnotation\":[\"properties\",\"indexers\",\"callProperties\"],\"ObjectTypeCallProperty\":[\"value\"],\"ObjectTypeIndexer\":[\"id\",\"key\",\"value\"],\"ObjectTypeProperty\":[\"key\",\"value\"],\"ObjectTypeSpreadProperty\":[\"argument\"],\"OpaqueType\":[\"id\",\"typeParameters\",\"supertype\",\"impltype\"],\"QualifiedTypeIdentifier\":[\"id\",\"qualification\"],\"StringLiteralTypeAnnotation\":[],\"StringTypeAnnotation\":[],\"ThisTypeAnnotation\":[],\"TupleTypeAnnotation\":[\"types\"],\"TypeofTypeAnnotation\":[\"argument\"],\"TypeAlias\":[\"id\",\"typeParameters\",\"right\"],\"TypeAnnotation\":[\"typeAnnotation\"],\"TypeCastExpression\":[\"expression\",\"typeAnnotation\"],\"TypeParameter\":[\"bound\",\"default\"],\"TypeParameterDeclaration\":[\"params\"],\"TypeParameterInstantiation\":[\"params\"],\"UnionTypeAnnotation\":[\"types\"],\"VoidTypeAnnotation\":[],\"JSXAttribute\":[\"name\",\"value\"],\"JSXClosingElement\":[\"name\"],\"JSXElement\":[\"openingElement\",\"children\",\"closingElement\"],\"JSXEmptyExpression\":[],\"JSXExpressionContainer\":[\"expression\"],\"JSXSpreadChild\":[\"expression\"],\"JSXIdentifier\":[],\"JSXMemberExpression\":[\"object\",\"property\"],\"JSXNamespacedName\":[\"namespace\",\"name\"],\"JSXOpeningElement\":[\"name\",\"attributes\"],\"JSXSpreadAttribute\":[\"argument\"],\"JSXText\":[],\"JSXFragment\":[\"openingFragment\",\"children\",\"closingFragment\"],\"JSXOpeningFragment\":[],\"JSXClosingFragment\":[],\"Noop\":[],\"ParenthesizedExpression\":[\"expression\"],\"AwaitExpression\":[\"argument\"],\"BindExpression\":[\"object\",\"callee\"],\"ClassProperty\":[\"key\",\"value\",\"typeAnnotation\",\"decorators\"],\"Import\":[],\"Decorator\":[\"expression\"],\"DoExpression\":[\"body\"],\"ExportDefaultSpecifier\":[\"exported\"],\"ExportNamespaceSpecifier\":[\"exported\"],\"TSParameterProperty\":[\"parameter\"],\"TSDeclareFunction\":[\"id\",\"typeParameters\",\"params\",\"returnType\"],\"TSDeclareMethod\":[\"decorators\",\"key\",\"typeParameters\",\"params\",\"returnType\"],\"TSQualifiedName\":[\"left\",\"right\"],\"TSCallSignatureDeclaration\":[\"typeParameters\",\"parameters\",\"typeAnnotation\"],\"TSConstructSignatureDeclaration\":[\"typeParameters\",\"parameters\",\"typeAnnotation\"],\"TSPropertySignature\":[\"key\",\"typeAnnotation\",\"initializer\"],\"TSMethodSignature\":[\"key\",\"typeParameters\",\"parameters\",\"typeAnnotation\"],\"TSIndexSignature\":[\"parameters\",\"typeAnnotation\"],\"TSAnyKeyword\":[],\"TSNumberKeyword\":[],\"TSObjectKeyword\":[],\"TSBooleanKeyword\":[],\"TSStringKeyword\":[],\"TSSymbolKeyword\":[],\"TSVoidKeyword\":[],\"TSUndefinedKeyword\":[],\"TSNullKeyword\":[],\"TSNeverKeyword\":[],\"TSThisType\":[],\"TSFunctionType\":[\"typeParameters\",\"typeAnnotation\"],\"TSConstructorType\":[\"typeParameters\",\"typeAnnotation\"],\"TSTypeReference\":[\"typeName\",\"typeParameters\"],\"TSTypePredicate\":[\"parameterName\",\"typeAnnotation\"],\"TSTypeQuery\":[\"exprName\"],\"TSTypeLiteral\":[\"members\"],\"TSArrayType\":[\"elementType\"],\"TSTupleType\":[\"elementTypes\"],\"TSUnionType\":[\"types\"],\"TSIntersectionType\":[\"types\"],\"TSParenthesizedType\":[\"typeAnnotation\"],\"TSTypeOperator\":[\"typeAnnotation\"],\"TSIndexedAccessType\":[\"objectType\",\"indexType\"],\"TSMappedType\":[\"typeParameter\",\"typeAnnotation\"],\"TSLiteralType\":[\"literal\"],\"TSExpressionWithTypeArguments\":[\"expression\",\"typeParameters\"],\"TSInterfaceDeclaration\":[\"id\",\"typeParameters\",\"extends\",\"body\"],\"TSInterfaceBody\":[\"body\"],\"TSTypeAliasDeclaration\":[\"id\",\"typeParameters\",\"typeAnnotation\"],\"TSAsExpression\":[\"expression\",\"typeAnnotation\"],\"TSTypeAssertion\":[\"typeAnnotation\",\"expression\"],\"TSEnumDeclaration\":[\"id\",\"members\"],\"TSEnumMember\":[\"id\",\"initializer\"],\"TSModuleDeclaration\":[\"id\",\"body\"],\"TSModuleBlock\":[\"body\"],\"TSImportEqualsDeclaration\":[\"id\",\"moduleReference\"],\"TSExternalModuleReference\":[\"expression\"],\"TSNonNullExpression\":[\"expression\"],\"TSExportAssignment\":[\"expression\"],\"TSNamespaceExportDeclaration\":[\"id\"],\"TSTypeAnnotation\":[\"typeAnnotation\"],\"TSTypeParameterInstantiation\":[\"params\"],\"TSTypeParameterDeclaration\":[\"params\"],\"TSTypeParameter\":[\"constraint\",\"default\"]}",
     _powerAssertRecorder = function () { function PowerAssertRecorder() { this.captured = []; } PowerAssertRecorder.prototype._capt = function _capt(value, espath) { this.captured.push({ value: value, espath: espath }); return value; }; PowerAssertRecorder.prototype._expr = function _expr(value, source) { var capturedValues = this.captured; this.captured = []; return { powerAssertContext: { value: value, events: capturedValues }, source: source }; }; return PowerAssertRecorder; }(),
     _rec = new _powerAssertRecorder();
 
 assert(function (v) {
   return v + 1;
 });
-
 assert(function (v, i) {
   return v + i;
 });
-
 assert(function (v) {
-  return { even: v, odd: v + 1 };
+  return {
+    even: v,
+    odd: v + 1
+  };
 });
-
-assert(_rec._expr(_rec._capt(_rec._capt(seven, 'arguments/0/left') === _rec._capt(function (v, i) {
+assert(_rec._expr(_rec._capt(_rec._capt(seven, "arguments/0/left") === _rec._capt(function (v, i) {
   return v + i;
-}(_rec._capt(four, 'arguments/0/right/arguments/0'), _rec._capt(five, 'arguments/0/right/arguments/1')), 'arguments/0/right'), 'arguments/0'), {
-  content: 'assert(seven === ((v, i) => v + i)(four, five))',
-  filepath: 'test/fixtures/ArrowFunctionExpression/fixture.js',
+}(_rec._capt(four, "arguments/0/right/arguments/0"), _rec._capt(five, "arguments/0/right/arguments/1")), "arguments/0/right"), "arguments/0"), {
+  content: "assert(seven === ((v, i) => v + i)(four, five))",
+  filepath: "test/fixtures/ArrowFunctionExpression/fixture.js",
   line: 9,
-  ast: '{"type":"CallExpression","callee":{"type":"Identifier","name":"assert","range":[0,6]},"arguments":[{"type":"BinaryExpression","operator":"===","left":{"type":"Identifier","name":"seven","range":[7,12]},"right":{"type":"CallExpression","callee":{"type":"ArrowFunctionExpression","params":[{"type":"Identifier","name":"v","range":[19,20]},{"type":"Identifier","name":"i","range":[22,23]}],"body":{"type":"BinaryExpression","operator":"+","left":{"type":"Identifier","name":"v","range":[28,29]},"right":{"type":"Identifier","name":"i","range":[32,33]},"range":[28,33]},"async":false,"range":[18,33]},"arguments":[{"type":"Identifier","name":"four","range":[35,39]},{"type":"Identifier","name":"five","range":[41,45]}],"range":[17,46]},"range":[7,46]}],"range":[0,47]}',
-  tokens: '[{"type":{"label":"name"},"value":"assert","range":[0,6]},{"type":{"label":"("},"range":[6,7]},{"type":{"label":"name"},"value":"seven","range":[7,12]},{"type":{"label":"==/!="},"value":"===","range":[13,16]},{"type":{"label":"("},"range":[17,18]},{"type":{"label":"("},"range":[18,19]},{"type":{"label":"name"},"value":"v","range":[19,20]},{"type":{"label":","},"range":[20,21]},{"type":{"label":"name"},"value":"i","range":[22,23]},{"type":{"label":")"},"range":[23,24]},{"type":{"label":"=>"},"range":[25,27]},{"type":{"label":"name"},"value":"v","range":[28,29]},{"type":{"label":"+/-"},"value":"+","range":[30,31]},{"type":{"label":"name"},"value":"i","range":[32,33]},{"type":{"label":")"},"range":[33,34]},{"type":{"label":"("},"range":[34,35]},{"type":{"label":"name"},"value":"four","range":[35,39]},{"type":{"label":","},"range":[39,40]},{"type":{"label":"name"},"value":"five","range":[41,45]},{"type":{"label":")"},"range":[45,46]},{"type":{"label":")"},"range":[46,47]}]',
+  ast: "{\"type\":\"CallExpression\",\"callee\":{\"type\":\"Identifier\",\"name\":\"assert\",\"range\":[0,6]},\"arguments\":[{\"type\":\"BinaryExpression\",\"operator\":\"===\",\"left\":{\"type\":\"Identifier\",\"name\":\"seven\",\"range\":[7,12]},\"right\":{\"type\":\"CallExpression\",\"callee\":{\"type\":\"ArrowFunctionExpression\",\"params\":[{\"type\":\"Identifier\",\"name\":\"v\",\"range\":[19,20]},{\"type\":\"Identifier\",\"name\":\"i\",\"range\":[22,23]}],\"body\":{\"type\":\"BinaryExpression\",\"operator\":\"+\",\"left\":{\"type\":\"Identifier\",\"name\":\"v\",\"range\":[28,29]},\"right\":{\"type\":\"Identifier\",\"name\":\"i\",\"range\":[32,33]},\"range\":[28,33]},\"async\":false,\"range\":[18,33]},\"arguments\":[{\"type\":\"Identifier\",\"name\":\"four\",\"range\":[35,39]},{\"type\":\"Identifier\",\"name\":\"five\",\"range\":[41,45]}],\"range\":[17,46]},\"range\":[7,46]}],\"range\":[0,47]}",
+  tokens: "[{\"type\":{\"label\":\"name\"},\"value\":\"assert\",\"range\":[0,6]},{\"type\":{\"label\":\"(\"},\"range\":[6,7]},{\"type\":{\"label\":\"name\"},\"value\":\"seven\",\"range\":[7,12]},{\"type\":{\"label\":\"==/!=\"},\"value\":\"===\",\"range\":[13,16]},{\"type\":{\"label\":\"(\"},\"range\":[17,18]},{\"type\":{\"label\":\"(\"},\"range\":[18,19]},{\"type\":{\"label\":\"name\"},\"value\":\"v\",\"range\":[19,20]},{\"type\":{\"label\":\",\"},\"range\":[20,21]},{\"type\":{\"label\":\"name\"},\"value\":\"i\",\"range\":[22,23]},{\"type\":{\"label\":\")\"},\"range\":[23,24]},{\"type\":{\"label\":\"=>\"},\"range\":[25,27]},{\"type\":{\"label\":\"name\"},\"value\":\"v\",\"range\":[28,29]},{\"type\":{\"label\":\"+/-\"},\"value\":\"+\",\"range\":[30,31]},{\"type\":{\"label\":\"name\"},\"value\":\"i\",\"range\":[32,33]},{\"type\":{\"label\":\")\"},\"range\":[33,34]},{\"type\":{\"label\":\"(\"},\"range\":[34,35]},{\"type\":{\"label\":\"name\"},\"value\":\"four\",\"range\":[35,39]},{\"type\":{\"label\":\",\"},\"range\":[39,40]},{\"type\":{\"label\":\"name\"},\"value\":\"five\",\"range\":[41,45]},{\"type\":{\"label\":\")\"},\"range\":[45,46]},{\"type\":{\"label\":\")\"},\"range\":[46,47]}]",
   visitorKeys: _powerAssertVisitorKeys
 }));
diff --git a/test/fixtures/ArrowFunctionExpression/expected.js b/test/fixtures/ArrowFunctionExpression/expected.js
index fc5a130..cc3c47c 100644
--- a/test/fixtures/ArrowFunctionExpression/expected.js
+++ b/test/fixtures/ArrowFunctionExpression/expected.js
@@ -4,13 +4,13 @@ var _powerAssertRecorder = function () { function PowerAssertRecorder() { this.c
     _rec = new _powerAssertRecorder();
 
 assert(v => v + 1);
-
 assert((v, i) => v + i);
-
-assert(v => ({ even: v, odd: v + 1 }));
-
-assert(_rec._expr(_rec._capt(_rec._capt(seven, 'arguments/0/left') === _rec._capt(((v, i) => v + i)(_rec._capt(four, 'arguments/0/right/arguments/0'), _rec._capt(five, 'arguments/0/right/arguments/1')), 'arguments/0/right'), 'arguments/0'), {
-  content: 'assert(seven === ((v, i) => v + i)(four, five))',
-  filepath: 'test/fixtures/ArrowFunctionExpression/fixture.js',
+assert(v => ({
+  even: v,
+  odd: v + 1
+}));
+assert(_rec._expr(_rec._capt(_rec._capt(seven, "arguments/0/left") === _rec._capt(((v, i) => v + i)(_rec._capt(four, "arguments/0/right/arguments/0"), _rec._capt(five, "arguments/0/right/arguments/1")), "arguments/0/right"), "arguments/0"), {
+  content: "assert(seven === ((v, i) => v + i)(four, five))",
+  filepath: "test/fixtures/ArrowFunctionExpression/fixture.js",
   line: 9
 }));
diff --git a/test/fixtures/AssignmentExpression/expected-presets-es2015.js b/test/fixtures/AssignmentExpression/expected-presets-es2015.js
index 0f81f31..229b835 100644
--- a/test/fixtures/AssignmentExpression/expected-presets-es2015.js
+++ b/test/fixtures/AssignmentExpression/expected-presets-es2015.js
@@ -1,8 +1,6 @@
 'use strict';
 
-var _slicedToArray = function () { function sliceIterator(arr, i) { var _arr = []; var _n = true; var _d = false; var _e = undefined; try { for (var _i = arr[Symbol.iterator](), _s; !(_n = (_s = _i.next()).done); _n = true) { _arr.push(_s.value); if (i && _arr.length === i) break; } } catch (err) { _d = true; _e = err; } finally { try { if (!_n && _i["return"]) _i["return"](); } finally { if (_d) throw _e; } } return _arr; } return function (arr, i) { if (Array.isArray(arr)) { return arr; } else if (Symbol.iterator in Object(arr)) { return sliceIterator(arr, i); } else { throw new TypeError("Invalid attempt to destructure non-iterable instance"); } }; }();
-
-var _powerAssertVisitorKeys = '{"ArrayExpression":["elements"],"AssignmentExpression":["left","right"],"BinaryExpression":["left","right"],"Directive":["value"],"DirectiveLiteral":[],"BlockStatement":["directives","body"],"BreakStatement":["label"],"CallExpression":["callee","arguments"],"CatchClause":["param","body"],"ConditionalExpression":["test","consequent","alternate"],"ContinueStatement":["label"],"DebuggerStatement":[],"DoWhileStatement":["test","body"],"EmptyStatement":[],"ExpressionStatement":["expression"],"File":["program"],"ForInStatement":["left","right","body"],"ForStatement":["init","test","update","body"],"FunctionDeclaration":["id","params","body","returnType","typeParameters"],"FunctionExpression":["id","params","body","returnType","typeParameters"],"Identifier":["typeAnnotation"],"IfStatement":["test","consequent","alternate"],"LabeledStatement":["label","body"],"StringLiteral":[],"NumericLiteral":[],"NullLiteral":[],"BooleanLiteral":[],"RegExpLiteral":[],"LogicalExpression":["left","right"],"MemberExpression":["object","property"],"NewExpression":["callee","arguments"],"Program":["directives","body"],"ObjectExpression":["properties"],"ObjectMethod":["key","params","body","decorators","returnType","typeParameters"],"ObjectProperty":["key","value","decorators"],"RestElement":["argument","typeAnnotation"],"ReturnStatement":["argument"],"SequenceExpression":["expressions"],"SwitchCase":["test","consequent"],"SwitchStatement":["discriminant","cases"],"ThisExpression":[],"ThrowStatement":["argument"],"TryStatement":["block","handler","finalizer"],"UnaryExpression":["argument"],"UpdateExpression":["argument"],"VariableDeclaration":["declarations"],"VariableDeclarator":["id","init"],"WhileStatement":["test","body"],"WithStatement":["object","body"],"AssignmentPattern":["left","right"],"ArrayPattern":["elements","typeAnnotation"],"ArrowFunctionExpression":["params","body","returnType","typeParameters"],"ClassBody":["body"],"ClassDeclaration":["id","body","superClass","mixins","typeParameters","superTypeParameters","implements","decorators"],"ClassExpression":["id","body","superClass","mixins","typeParameters","superTypeParameters","implements","decorators"],"ExportAllDeclaration":["source"],"ExportDefaultDeclaration":["declaration"],"ExportNamedDeclaration":["declaration","specifiers","source"],"ExportSpecifier":["local","exported"],"ForOfStatement":["left","right","body"],"ImportDeclaration":["specifiers","source"],"ImportDefaultSpecifier":["local"],"ImportNamespaceSpecifier":["local"],"ImportSpecifier":["local","imported"],"MetaProperty":["meta","property"],"ClassMethod":["key","params","body","decorators","returnType","typeParameters"],"ObjectPattern":["properties","typeAnnotation"],"SpreadElement":["argument"],"Super":[],"TaggedTemplateExpression":["tag","quasi"],"TemplateElement":[],"TemplateLiteral":["quasis","expressions"],"YieldExpression":["argument"],"AnyTypeAnnotation":[],"ArrayTypeAnnotation":["elementType"],"BooleanTypeAnnotation":[],"BooleanLiteralTypeAnnotation":[],"NullLiteralTypeAnnotation":[],"ClassImplements":["id","typeParameters"],"ClassProperty":["key","value","typeAnnotation","decorators"],"DeclareClass":["id","typeParameters","extends","body"],"DeclareFunction":["id"],"DeclareInterface":["id","typeParameters","extends","body"],"DeclareModule":["id","body"],"DeclareModuleExports":["typeAnnotation"],"DeclareTypeAlias":["id","typeParameters","right"],"DeclareOpaqueType":["id","typeParameters","supertype"],"DeclareVariable":["id"],"DeclareExportDeclaration":["declaration","specifiers","source"],"ExistentialTypeParam":[],"FunctionTypeAnnotation":["typeParameters","params","rest","returnType"],"FunctionTypeParam":["name","typeAnnotation"],"GenericTypeAnnotation":["id","typeParameters"],"InterfaceExtends":["id","typeParameters"],"InterfaceDeclaration":["id","typeParameters","extends","body"],"IntersectionTypeAnnotation":["types"],"MixedTypeAnnotation":[],"EmptyTypeAnnotation":[],"NullableTypeAnnotation":["typeAnnotation"],"NumericLiteralTypeAnnotation":[],"NumberTypeAnnotation":[],"StringLiteralTypeAnnotation":[],"StringTypeAnnotation":[],"ThisTypeAnnotation":[],"TupleTypeAnnotation":["types"],"TypeofTypeAnnotation":["argument"],"TypeAlias":["id","typeParameters","right"],"OpaqueType":["id","typeParameters","impltype","supertype"],"TypeAnnotation":["typeAnnotation"],"TypeCastExpression":["expression","typeAnnotation"],"TypeParameter":["bound"],"TypeParameterDeclaration":["params"],"TypeParameterInstantiation":["params"],"ObjectTypeAnnotation":["properties","indexers","callProperties"],"ObjectTypeCallProperty":["value"],"ObjectTypeIndexer":["id","key","value"],"ObjectTypeProperty":["key","value"],"ObjectTypeSpreadProperty":["argument"],"QualifiedTypeIdentifier":["id","qualification"],"UnionTypeAnnotation":["types"],"VoidTypeAnnotation":[],"JSXAttribute":["name","value"],"JSXClosingElement":["name"],"JSXElement":["openingElement","children","closingElement"],"JSXEmptyExpression":[],"JSXExpressionContainer":["expression"],"JSXSpreadChild":["expression"],"JSXIdentifier":[],"JSXMemberExpression":["object","property"],"JSXNamespacedName":["namespace","name"],"JSXOpeningElement":["name","attributes"],"JSXSpreadAttribute":["argument"],"JSXText":[],"Noop":[],"ParenthesizedExpression":["expression"],"AwaitExpression":["argument"],"ForAwaitStatement":["left","right","body"],"BindExpression":["object","callee"],"Import":[],"Decorator":["expression"],"DoExpression":["body"],"ExportDefaultSpecifier":["exported"],"ExportNamespaceSpecifier":["exported"],"RestProperty":["argument"],"SpreadProperty":["argument"]}',
+var _powerAssertVisitorKeys = "{\"ArrayExpression\":[\"elements\"],\"AssignmentExpression\":[\"left\",\"right\"],\"BinaryExpression\":[\"left\",\"right\"],\"Directive\":[\"value\"],\"DirectiveLiteral\":[],\"BlockStatement\":[\"directives\",\"body\"],\"BreakStatement\":[\"label\"],\"CallExpression\":[\"callee\",\"arguments\",\"typeParameters\"],\"CatchClause\":[\"param\",\"body\"],\"ConditionalExpression\":[\"test\",\"consequent\",\"alternate\"],\"ContinueStatement\":[\"label\"],\"DebuggerStatement\":[],\"DoWhileStatement\":[\"test\",\"body\"],\"EmptyStatement\":[],\"ExpressionStatement\":[\"expression\"],\"File\":[\"program\"],\"ForInStatement\":[\"left\",\"right\",\"body\"],\"ForStatement\":[\"init\",\"test\",\"update\",\"body\"],\"FunctionDeclaration\":[\"id\",\"params\",\"body\",\"returnType\",\"typeParameters\"],\"FunctionExpression\":[\"id\",\"params\",\"body\",\"returnType\",\"typeParameters\"],\"Identifier\":[\"typeAnnotation\"],\"IfStatement\":[\"test\",\"consequent\",\"alternate\"],\"LabeledStatement\":[\"label\",\"body\"],\"StringLiteral\":[],\"NumericLiteral\":[],\"NullLiteral\":[],\"BooleanLiteral\":[],\"RegExpLiteral\":[],\"LogicalExpression\":[\"left\",\"right\"],\"MemberExpression\":[\"object\",\"property\"],\"NewExpression\":[\"callee\",\"arguments\",\"typeParameters\"],\"Program\":[\"directives\",\"body\"],\"ObjectExpression\":[\"properties\"],\"ObjectMethod\":[\"key\",\"params\",\"body\",\"decorators\",\"returnType\",\"typeParameters\"],\"ObjectProperty\":[\"key\",\"value\",\"decorators\"],\"RestElement\":[\"argument\",\"typeAnnotation\"],\"ReturnStatement\":[\"argument\"],\"SequenceExpression\":[\"expressions\"],\"SwitchCase\":[\"test\",\"consequent\"],\"SwitchStatement\":[\"discriminant\",\"cases\"],\"ThisExpression\":[],\"ThrowStatement\":[\"argument\"],\"TryStatement\":[\"block\",\"handler\",\"finalizer\"],\"UnaryExpression\":[\"argument\"],\"UpdateExpression\":[\"argument\"],\"VariableDeclaration\":[\"declarations\"],\"VariableDeclarator\":[\"id\",\"init\"],\"WhileStatement\":[\"test\",\"body\"],\"WithStatement\":[\"object\",\"body\"],\"AssignmentPattern\":[\"left\",\"right\"],\"ArrayPattern\":[\"elements\",\"typeAnnotation\"],\"ArrowFunctionExpression\":[\"params\",\"body\",\"returnType\",\"typeParameters\"],\"ClassBody\":[\"body\"],\"ClassDeclaration\":[\"id\",\"body\",\"superClass\",\"mixins\",\"typeParameters\",\"superTypeParameters\",\"implements\",\"decorators\"],\"ClassExpression\":[\"id\",\"body\",\"superClass\",\"mixins\",\"typeParameters\",\"superTypeParameters\",\"implements\",\"decorators\"],\"ExportAllDeclaration\":[\"source\"],\"ExportDefaultDeclaration\":[\"declaration\"],\"ExportNamedDeclaration\":[\"declaration\",\"specifiers\",\"source\"],\"ExportSpecifier\":[\"local\",\"exported\"],\"ForOfStatement\":[\"left\",\"right\",\"body\"],\"ImportDeclaration\":[\"specifiers\",\"source\"],\"ImportDefaultSpecifier\":[\"local\"],\"ImportNamespaceSpecifier\":[\"local\"],\"ImportSpecifier\":[\"local\",\"imported\"],\"MetaProperty\":[\"meta\",\"property\"],\"ClassMethod\":[\"key\",\"params\",\"body\",\"decorators\",\"returnType\",\"typeParameters\"],\"ObjectPattern\":[\"properties\",\"typeAnnotation\"],\"SpreadElement\":[\"argument\"],\"Super\":[],\"TaggedTemplateExpression\":[\"tag\",\"quasi\"],\"TemplateElement\":[],\"TemplateLiteral\":[\"quasis\",\"expressions\"],\"YieldExpression\":[\"argument\"],\"AnyTypeAnnotation\":[],\"ArrayTypeAnnotation\":[\"elementType\"],\"BooleanTypeAnnotation\":[],\"BooleanLiteralTypeAnnotation\":[],\"NullLiteralTypeAnnotation\":[],\"ClassImplements\":[\"id\",\"typeParameters\"],\"DeclareClass\":[\"id\",\"typeParameters\",\"extends\",\"body\"],\"DeclareFunction\":[\"id\"],\"DeclareInterface\":[\"id\",\"typeParameters\",\"extends\",\"body\"],\"DeclareModule\":[\"id\",\"body\"],\"DeclareModuleExports\":[\"typeAnnotation\"],\"DeclareTypeAlias\":[\"id\",\"typeParameters\",\"right\"],\"DeclareOpaqueType\":[\"id\",\"typeParameters\",\"supertype\"],\"DeclareVariable\":[\"id\"],\"DeclareExportDeclaration\":[\"declaration\",\"specifiers\",\"source\"],\"DeclareExportAllDeclaration\":[\"source\"],\"DeclaredPredicate\":[\"value\"],\"ExistsTypeAnnotation\":[],\"FunctionTypeAnnotation\":[\"typeParameters\",\"params\",\"rest\",\"returnType\"],\"FunctionTypeParam\":[\"name\",\"typeAnnotation\"],\"GenericTypeAnnotation\":[\"id\",\"typeParameters\"],\"InferredPredicate\":[],\"InterfaceExtends\":[\"id\",\"typeParameters\"],\"InterfaceDeclaration\":[\"id\",\"typeParameters\",\"extends\",\"body\"],\"IntersectionTypeAnnotation\":[\"types\"],\"MixedTypeAnnotation\":[],\"EmptyTypeAnnotation\":[],\"NullableTypeAnnotation\":[\"typeAnnotation\"],\"NumberLiteralTypeAnnotation\":[],\"NumberTypeAnnotation\":[],\"ObjectTypeAnnotation\":[\"properties\",\"indexers\",\"callProperties\"],\"ObjectTypeCallProperty\":[\"value\"],\"ObjectTypeIndexer\":[\"id\",\"key\",\"value\"],\"ObjectTypeProperty\":[\"key\",\"value\"],\"ObjectTypeSpreadProperty\":[\"argument\"],\"OpaqueType\":[\"id\",\"typeParameters\",\"supertype\",\"impltype\"],\"QualifiedTypeIdentifier\":[\"id\",\"qualification\"],\"StringLiteralTypeAnnotation\":[],\"StringTypeAnnotation\":[],\"ThisTypeAnnotation\":[],\"TupleTypeAnnotation\":[\"types\"],\"TypeofTypeAnnotation\":[\"argument\"],\"TypeAlias\":[\"id\",\"typeParameters\",\"right\"],\"TypeAnnotation\":[\"typeAnnotation\"],\"TypeCastExpression\":[\"expression\",\"typeAnnotation\"],\"TypeParameter\":[\"bound\",\"default\"],\"TypeParameterDeclaration\":[\"params\"],\"TypeParameterInstantiation\":[\"params\"],\"UnionTypeAnnotation\":[\"types\"],\"VoidTypeAnnotation\":[],\"JSXAttribute\":[\"name\",\"value\"],\"JSXClosingElement\":[\"name\"],\"JSXElement\":[\"openingElement\",\"children\",\"closingElement\"],\"JSXEmptyExpression\":[],\"JSXExpressionContainer\":[\"expression\"],\"JSXSpreadChild\":[\"expression\"],\"JSXIdentifier\":[],\"JSXMemberExpression\":[\"object\",\"property\"],\"JSXNamespacedName\":[\"namespace\",\"name\"],\"JSXOpeningElement\":[\"name\",\"attributes\"],\"JSXSpreadAttribute\":[\"argument\"],\"JSXText\":[],\"JSXFragment\":[\"openingFragment\",\"children\",\"closingFragment\"],\"JSXOpeningFragment\":[],\"JSXClosingFragment\":[],\"Noop\":[],\"ParenthesizedExpression\":[\"expression\"],\"AwaitExpression\":[\"argument\"],\"BindExpression\":[\"object\",\"callee\"],\"ClassProperty\":[\"key\",\"value\",\"typeAnnotation\",\"decorators\"],\"Import\":[],\"Decorator\":[\"expression\"],\"DoExpression\":[\"body\"],\"ExportDefaultSpecifier\":[\"exported\"],\"ExportNamespaceSpecifier\":[\"exported\"],\"TSParameterProperty\":[\"parameter\"],\"TSDeclareFunction\":[\"id\",\"typeParameters\",\"params\",\"returnType\"],\"TSDeclareMethod\":[\"decorators\",\"key\",\"typeParameters\",\"params\",\"returnType\"],\"TSQualifiedName\":[\"left\",\"right\"],\"TSCallSignatureDeclaration\":[\"typeParameters\",\"parameters\",\"typeAnnotation\"],\"TSConstructSignatureDeclaration\":[\"typeParameters\",\"parameters\",\"typeAnnotation\"],\"TSPropertySignature\":[\"key\",\"typeAnnotation\",\"initializer\"],\"TSMethodSignature\":[\"key\",\"typeParameters\",\"parameters\",\"typeAnnotation\"],\"TSIndexSignature\":[\"parameters\",\"typeAnnotation\"],\"TSAnyKeyword\":[],\"TSNumberKeyword\":[],\"TSObjectKeyword\":[],\"TSBooleanKeyword\":[],\"TSStringKeyword\":[],\"TSSymbolKeyword\":[],\"TSVoidKeyword\":[],\"TSUndefinedKeyword\":[],\"TSNullKeyword\":[],\"TSNeverKeyword\":[],\"TSThisType\":[],\"TSFunctionType\":[\"typeParameters\",\"typeAnnotation\"],\"TSConstructorType\":[\"typeParameters\",\"typeAnnotation\"],\"TSTypeReference\":[\"typeName\",\"typeParameters\"],\"TSTypePredicate\":[\"parameterName\",\"typeAnnotation\"],\"TSTypeQuery\":[\"exprName\"],\"TSTypeLiteral\":[\"members\"],\"TSArrayType\":[\"elementType\"],\"TSTupleType\":[\"elementTypes\"],\"TSUnionType\":[\"types\"],\"TSIntersectionType\":[\"types\"],\"TSParenthesizedType\":[\"typeAnnotation\"],\"TSTypeOperator\":[\"typeAnnotation\"],\"TSIndexedAccessType\":[\"objectType\",\"indexType\"],\"TSMappedType\":[\"typeParameter\",\"typeAnnotation\"],\"TSLiteralType\":[\"literal\"],\"TSExpressionWithTypeArguments\":[\"expression\",\"typeParameters\"],\"TSInterfaceDeclaration\":[\"id\",\"typeParameters\",\"extends\",\"body\"],\"TSInterfaceBody\":[\"body\"],\"TSTypeAliasDeclaration\":[\"id\",\"typeParameters\",\"typeAnnotation\"],\"TSAsExpression\":[\"expression\",\"typeAnnotation\"],\"TSTypeAssertion\":[\"typeAnnotation\",\"expression\"],\"TSEnumDeclaration\":[\"id\",\"members\"],\"TSEnumMember\":[\"id\",\"initializer\"],\"TSModuleDeclaration\":[\"id\",\"body\"],\"TSModuleBlock\":[\"body\"],\"TSImportEqualsDeclaration\":[\"id\",\"moduleReference\"],\"TSExternalModuleReference\":[\"expression\"],\"TSNonNullExpression\":[\"expression\"],\"TSExportAssignment\":[\"expression\"],\"TSNamespaceExportDeclaration\":[\"id\"],\"TSTypeAnnotation\":[\"typeAnnotation\"],\"TSTypeParameterInstantiation\":[\"params\"],\"TSTypeParameterDeclaration\":[\"params\"],\"TSTypeParameter\":[\"constraint\",\"default\"]}",
     _powerAssertRecorder = function () { function PowerAssertRecorder() { this.captured = []; } PowerAssertRecorder.prototype._capt = function _capt(value, espath) { this.captured.push({ value: value, espath: espath }); return value; }; PowerAssertRecorder.prototype._expr = function _expr(value, source) { var capturedValues = this.captured; this.captured = []; return { powerAssertContext: { value: value, events: capturedValues }, source: source }; }; return PowerAssertRecorder; }(),
     _rec = new _powerAssertRecorder(),
     _rec2 = new _powerAssertRecorder(),
@@ -16,63 +14,62 @@ var _powerAssertVisitorKeys = '{"ArrayExpression":["elements"],"AssignmentExpres
     _rec7$_capt,
     _rec7$_capt2;
 
-assert(_rec._expr(_rec._capt(counter += 1, 'arguments/0'), {
-  content: 'assert(counter += 1)',
-  filepath: 'test/fixtures/AssignmentExpression/fixture.js',
+function _sliceIterator(arr, i) { var _arr = []; var _n = true; var _d = false; var _e = undefined; try { for (var _i = arr[Symbol.iterator](), _s; !(_n = (_s = _i.next()).done); _n = true) { _arr.push(_s.value); if (i && _arr.length === i) break; } } catch (err) { _d = true; _e = err; } finally { try { if (!_n && _i["return"] != null) _i["return"](); } finally { if (_d) throw _e; } } return _arr; }
+
+function _slicedToArray(arr, i) { if (Array.isArray(arr)) { return arr; } else if (Symbol.iterator in Object(arr)) { return _sliceIterator(arr, i); } else { throw new TypeError("Invalid attempt to destructure non-iterable instance"); } }
+
+assert(_rec._expr(_rec._capt(counter += 1, "arguments/0"), {
+  content: "assert(counter += 1)",
+  filepath: "test/fixtures/AssignmentExpression/fixture.js",
   line: 3,
-  ast: '{"type":"CallExpression","callee":{"type":"Identifier","name":"assert","range":[0,6]},"arguments":[{"type":"AssignmentExpression","operator":"+=","left":{"type":"Identifier","name":"counter","range":[7,14]},"right":{"type":"NumericLiteral","value":1,"range":[18,19]},"range":[7,19]}],"range":[0,20]}',
-  tokens: '[{"type":{"label":"name"},"value":"assert","range":[0,6]},{"type":{"label":"("},"range":[6,7]},{"type":{"label":"name"},"value":"counter","range":[7,14]},{"type":{"label":"_="},"value":"+=","range":[15,17]},{"type":{"label":"num"},"value":1,"range":[18,19]},{"type":{"label":")"},"range":[19,20]}]',
+  ast: "{\"type\":\"CallExpression\",\"callee\":{\"type\":\"Identifier\",\"name\":\"assert\",\"range\":[0,6]},\"arguments\":[{\"type\":\"AssignmentExpression\",\"operator\":\"+=\",\"left\":{\"type\":\"Identifier\",\"name\":\"counter\",\"range\":[7,14]},\"right\":{\"type\":\"NumericLiteral\",\"value\":1,\"range\":[18,19]},\"range\":[7,19]}],\"range\":[0,20]}",
+  tokens: "[{\"type\":{\"label\":\"name\"},\"value\":\"assert\",\"range\":[0,6]},{\"type\":{\"label\":\"(\"},\"range\":[6,7]},{\"type\":{\"label\":\"name\"},\"value\":\"counter\",\"range\":[7,14]},{\"type\":{\"label\":\"_=\"},\"value\":\"+=\",\"range\":[15,17]},{\"type\":{\"label\":\"num\"},\"value\":1,\"range\":[18,19]},{\"type\":{\"label\":\")\"},\"range\":[19,20]}]",
   visitorKeys: _powerAssertVisitorKeys
 }));
-
-assert(_rec2._expr(_rec2._capt(dog.age += 1, 'arguments/0'), {
-  content: 'assert(dog.age += 1)',
-  filepath: 'test/fixtures/AssignmentExpression/fixture.js',
+assert(_rec2._expr(_rec2._capt(dog.age += 1, "arguments/0"), {
+  content: "assert(dog.age += 1)",
+  filepath: "test/fixtures/AssignmentExpression/fixture.js",
   line: 5,
-  ast: '{"type":"CallExpression","callee":{"type":"Identifier","name":"assert","range":[0,6]},"arguments":[{"type":"AssignmentExpression","operator":"+=","left":{"type":"MemberExpression","object":{"type":"Identifier","name":"dog","range":[7,10]},"property":{"type":"Identifier","name":"age","range":[11,14]},"computed":false,"range":[7,14]},"right":{"type":"NumericLiteral","value":1,"range":[18,19]},"range":[7,19]}],"range":[0,20]}',
-  tokens: '[{"type":{"label":"name"},"value":"assert","range":[0,6]},{"type":{"label":"("},"range":[6,7]},{"type":{"label":"name"},"value":"dog","range":[7,10]},{"type":{"label":"."},"range":[10,11]},{"type":{"label":"name"},"value":"age","range":[11,14]},{"type":{"label":"_="},"value":"+=","range":[15,17]},{"type":{"label":"num"},"value":1,"range":[18,19]},{"type":{"label":")"},"range":[19,20]}]',
+  ast: "{\"type\":\"CallExpression\",\"callee\":{\"type\":\"Identifier\",\"name\":\"assert\",\"range\":[0,6]},\"arguments\":[{\"type\":\"AssignmentExpression\",\"operator\":\"+=\",\"left\":{\"type\":\"MemberExpression\",\"object\":{\"type\":\"Identifier\",\"name\":\"dog\",\"range\":[7,10]},\"property\":{\"type\":\"Identifier\",\"name\":\"age\",\"range\":[11,14]},\"computed\":false,\"range\":[7,14]},\"right\":{\"type\":\"NumericLiteral\",\"value\":1,\"range\":[18,19]},\"range\":[7,19]}],\"range\":[0,20]}",
+  tokens: "[{\"type\":{\"label\":\"name\"},\"value\":\"assert\",\"range\":[0,6]},{\"type\":{\"label\":\"(\"},\"range\":[6,7]},{\"type\":{\"label\":\"name\"},\"value\":\"dog\",\"range\":[7,10]},{\"type\":{\"label\":\".\"},\"range\":[10,11]},{\"type\":{\"label\":\"name\"},\"value\":\"age\",\"range\":[11,14]},{\"type\":{\"label\":\"_=\"},\"value\":\"+=\",\"range\":[15,17]},{\"type\":{\"label\":\"num\"},\"value\":1,\"range\":[18,19]},{\"type\":{\"label\":\")\"},\"range\":[19,20]}]",
   visitorKeys: _powerAssertVisitorKeys
 }));
-
-assert(_rec3._expr(_rec3._capt(dog.age += 1, 'arguments/0'), {
-  content: 'assert(dog.age += 1)',
-  filepath: 'test/fixtures/AssignmentExpression/fixture.js',
+assert(_rec3._expr(_rec3._capt(dog.age += 1, "arguments/0"), {
+  content: "assert(dog.age += 1)",
+  filepath: "test/fixtures/AssignmentExpression/fixture.js",
   line: 7,
-  ast: '{"type":"CallExpression","callee":{"type":"Identifier","name":"assert","range":[0,6]},"arguments":[{"type":"AssignmentExpression","operator":"+=","left":{"type":"MemberExpression","object":{"type":"Identifier","name":"dog","range":[7,10]},"property":{"type":"Identifier","name":"age","range":[11,14]},"computed":false,"range":[7,14]},"right":{"type":"NumericLiteral","value":1,"range":[18,19]},"range":[7,19]}],"range":[0,20]}',
-  tokens: '[{"type":{"label":"name"},"value":"assert","range":[0,6]},{"type":{"label":"("},"range":[6,7]},{"type":{"label":"name"},"value":"dog","range":[7,10]},{"type":{"label":"."},"range":[10,11]},{"type":{"label":"name"},"value":"age","range":[11,14]},{"type":{"label":"_="},"value":"+=","range":[15,17]},{"type":{"label":"num"},"value":1,"range":[18,19]},{"type":{"label":")"},"range":[19,20]}]',
+  ast: "{\"type\":\"CallExpression\",\"callee\":{\"type\":\"Identifier\",\"name\":\"assert\",\"range\":[0,6]},\"arguments\":[{\"type\":\"AssignmentExpression\",\"operator\":\"+=\",\"left\":{\"type\":\"MemberExpression\",\"object\":{\"type\":\"Identifier\",\"name\":\"dog\",\"range\":[7,10]},\"property\":{\"type\":\"Identifier\",\"name\":\"age\",\"range\":[11,14]},\"computed\":false,\"range\":[7,14]},\"right\":{\"type\":\"NumericLiteral\",\"value\":1,\"range\":[18,19]},\"range\":[7,19]}],\"range\":[0,20]}",
+  tokens: "[{\"type\":{\"label\":\"name\"},\"value\":\"assert\",\"range\":[0,6]},{\"type\":{\"label\":\"(\"},\"range\":[6,7]},{\"type\":{\"label\":\"name\"},\"value\":\"dog\",\"range\":[7,10]},{\"type\":{\"label\":\".\"},\"range\":[10,11]},{\"type\":{\"label\":\"name\"},\"value\":\"age\",\"range\":[11,14]},{\"type\":{\"label\":\"_=\"},\"value\":\"+=\",\"range\":[15,17]},{\"type\":{\"label\":\"num\"},\"value\":1,\"range\":[18,19]},{\"type\":{\"label\":\")\"},\"range\":[19,20]}]",
   visitorKeys: _powerAssertVisitorKeys
 }));
-
-assert.strictEqual(_rec4._expr(_rec4._capt(dog.age += 1, 'arguments/0'), {
-  content: 'assert.strictEqual(dog.age += 1, three)',
-  filepath: 'test/fixtures/AssignmentExpression/fixture.js',
+assert.strictEqual(_rec4._expr(_rec4._capt(dog.age += 1, "arguments/0"), {
+  content: "assert.strictEqual(dog.age += 1, three)",
+  filepath: "test/fixtures/AssignmentExpression/fixture.js",
   line: 9,
-  ast: '{"type":"CallExpression","callee":{"type":"MemberExpression","object":{"type":"Identifier","name":"assert","range":[0,6]},"property":{"type":"Identifier","name":"strictEqual","range":[7,18]},"computed":false,"range":[0,18]},"arguments":[{"type":"AssignmentExpression","operator":"+=","left":{"type":"MemberExpression","object":{"type":"Identifier","name":"dog","range":[19,22]},"property":{"type":"Identifier","name":"age","range":[23,26]},"computed":false,"range":[19,26]},"right":{"type":"NumericLiteral","value":1,"range":[30,31]},"range":[19,31]},{"type":"Identifier","name":"three","range":[33,38]}],"range":[0,39]}',
-  tokens: '[{"type":{"label":"name"},"value":"assert","range":[0,6]},{"type":{"label":"."},"range":[6,7]},{"type":{"label":"name"},"value":"strictEqual","range":[7,18]},{"type":{"label":"("},"range":[18,19]},{"type":{"label":"name"},"value":"dog","range":[19,22]},{"type":{"label":"."},"range":[22,23]},{"type":{"label":"name"},"value":"age","range":[23,26]},{"type":{"label":"_="},"value":"+=","range":[27,29]},{"type":{"label":"num"},"value":1,"range":[30,31]},{"type":{"label":","},"range":[31,32]},{"type":{"label":"name"},"value":"three","range":[33,38]},{"type":{"label":")"},"range":[38,39]}]',
+  ast: "{\"type\":\"CallExpression\",\"callee\":{\"type\":\"MemberExpression\",\"object\":{\"type\":\"Identifier\",\"name\":\"assert\",\"range\":[0,6]},\"property\":{\"type\":\"Identifier\",\"name\":\"strictEqual\",\"range\":[7,18]},\"computed\":false,\"range\":[0,18]},\"arguments\":[{\"type\":\"AssignmentExpression\",\"operator\":\"+=\",\"left\":{\"type\":\"MemberExpression\",\"object\":{\"type\":\"Identifier\",\"name\":\"dog\",\"range\":[19,22]},\"property\":{\"type\":\"Identifier\",\"name\":\"age\",\"range\":[23,26]},\"computed\":false,\"range\":[19,26]},\"right\":{\"type\":\"NumericLiteral\",\"value\":1,\"range\":[30,31]},\"range\":[19,31]},{\"type\":\"Identifier\",\"name\":\"three\",\"range\":[33,38]}],\"range\":[0,39]}",
+  tokens: "[{\"type\":{\"label\":\"name\"},\"value\":\"assert\",\"range\":[0,6]},{\"type\":{\"label\":\".\"},\"range\":[6,7]},{\"type\":{\"label\":\"name\"},\"value\":\"strictEqual\",\"range\":[7,18]},{\"type\":{\"label\":\"(\"},\"range\":[18,19]},{\"type\":{\"label\":\"name\"},\"value\":\"dog\",\"range\":[19,22]},{\"type\":{\"label\":\".\"},\"range\":[22,23]},{\"type\":{\"label\":\"name\"},\"value\":\"age\",\"range\":[23,26]},{\"type\":{\"label\":\"_=\"},\"value\":\"+=\",\"range\":[27,29]},{\"type\":{\"label\":\"num\"},\"value\":1,\"range\":[30,31]},{\"type\":{\"label\":\",\"},\"range\":[31,32]},{\"type\":{\"label\":\"name\"},\"value\":\"three\",\"range\":[33,38]},{\"type\":{\"label\":\")\"},\"range\":[38,39]}]",
   visitorKeys: _powerAssertVisitorKeys
-}), _rec5._expr(_rec5._capt(three, 'arguments/1'), {
-  content: 'assert.strictEqual(dog.age += 1, three)',
-  filepath: 'test/fixtures/AssignmentExpression/fixture.js',
+}), _rec5._expr(_rec5._capt(three, "arguments/1"), {
+  content: "assert.strictEqual(dog.age += 1, three)",
+  filepath: "test/fixtures/AssignmentExpression/fixture.js",
   line: 9,
-  ast: '{"type":"CallExpression","callee":{"type":"MemberExpression","object":{"type":"Identifier","name":"assert","range":[0,6]},"property":{"type":"Identifier","name":"strictEqual","range":[7,18]},"computed":false,"range":[0,18]},"arguments":[{"type":"AssignmentExpression","operator":"+=","left":{"type":"MemberExpression","object":{"type":"Identifier","name":"dog","range":[19,22]},"property":{"type":"Identifier","name":"age","range":[23,26]},"computed":false,"range":[19,26]},"right":{"type":"NumericLiteral","value":1,"range":[30,31]},"range":[19,31]},{"type":"Identifier","name":"three","range":[33,38]}],"range":[0,39]}',
-  tokens: '[{"type":{"label":"name"},"value":"assert","range":[0,6]},{"type":{"label":"."},"range":[6,7]},{"type":{"label":"name"},"value":"strictEqual","range":[7,18]},{"type":{"label":"("},"range":[18,19]},{"type":{"label":"name"},"value":"dog","range":[19,22]},{"type":{"label":"."},"range":[22,23]},{"type":{"label":"name"},"value":"age","range":[23,26]},{"type":{"label":"_="},"value":"+=","range":[27,29]},{"type":{"label":"num"},"value":1,"range":[30,31]},{"type":{"label":","},"range":[31,32]},{"type":{"label":"name"},"value":"three","range":[33,38]},{"type":{"label":")"},"range":[38,39]}]',
+  ast: "{\"type\":\"CallExpression\",\"callee\":{\"type\":\"MemberExpression\",\"object\":{\"type\":\"Identifier\",\"name\":\"assert\",\"range\":[0,6]},\"property\":{\"type\":\"Identifier\",\"name\":\"strictEqual\",\"range\":[7,18]},\"computed\":false,\"range\":[0,18]},\"arguments\":[{\"type\":\"AssignmentExpression\",\"operator\":\"+=\",\"left\":{\"type\":\"MemberExpression\",\"object\":{\"type\":\"Identifier\",\"name\":\"dog\",\"range\":[19,22]},\"property\":{\"type\":\"Identifier\",\"name\":\"age\",\"range\":[23,26]},\"computed\":false,\"range\":[19,26]},\"right\":{\"type\":\"NumericLiteral\",\"value\":1,\"range\":[30,31]},\"range\":[19,31]},{\"type\":\"Identifier\",\"name\":\"three\",\"range\":[33,38]}],\"range\":[0,39]}",
+  tokens: "[{\"type\":{\"label\":\"name\"},\"value\":\"assert\",\"range\":[0,6]},{\"type\":{\"label\":\".\"},\"range\":[6,7]},{\"type\":{\"label\":\"name\"},\"value\":\"strictEqual\",\"range\":[7,18]},{\"type\":{\"label\":\"(\"},\"range\":[18,19]},{\"type\":{\"label\":\"name\"},\"value\":\"dog\",\"range\":[19,22]},{\"type\":{\"label\":\".\"},\"range\":[22,23]},{\"type\":{\"label\":\"name\"},\"value\":\"age\",\"range\":[23,26]},{\"type\":{\"label\":\"_=\"},\"value\":\"+=\",\"range\":[27,29]},{\"type\":{\"label\":\"num\"},\"value\":1,\"range\":[30,31]},{\"type\":{\"label\":\",\"},\"range\":[31,32]},{\"type\":{\"label\":\"name\"},\"value\":\"three\",\"range\":[33,38]},{\"type\":{\"label\":\")\"},\"range\":[38,39]}]",
   visitorKeys: _powerAssertVisitorKeys
 }));
-
-assert(_rec6._expr(_rec6._capt((_rec6$_capt = _rec6._capt([3], 'arguments/0/right'), _rec6$_capt2 = _slicedToArray(_rec6$_capt, 1), x = _rec6$_capt2[0], _rec6$_capt), 'arguments/0'), {
-  content: 'assert([x] = [3])',
-  filepath: 'test/fixtures/AssignmentExpression/fixture.js',
+assert(_rec6._expr(_rec6._capt((_rec6$_capt = _rec6._capt([3], "arguments/0/right"), _rec6$_capt2 = _slicedToArray(_rec6$_capt, 1), x = _rec6$_capt2[0], _rec6$_capt), "arguments/0"), {
+  content: "assert([x] = [3])",
+  filepath: "test/fixtures/AssignmentExpression/fixture.js",
   line: 11,
-  ast: '{"type":"CallExpression","callee":{"type":"Identifier","name":"assert","range":[0,6]},"arguments":[{"type":"AssignmentExpression","operator":"=","left":{"type":"ArrayPattern","elements":[{"type":"Identifier","name":"x","range":[8,9]}],"range":[7,10]},"right":{"type":"ArrayExpression","elements":[{"type":"NumericLiteral","value":3,"range":[14,15]}],"range":[13,16]},"range":[7,16]}],"range":[0,17]}',
-  tokens: '[{"type":{"label":"name"},"value":"assert","range":[0,6]},{"type":{"label":"("},"range":[6,7]},{"type":{"label":"["},"range":[7,8]},{"type":{"label":"name"},"value":"x","range":[8,9]},{"type":{"label":"]"},"range":[9,10]},{"type":{"label":"="},"value":"=","range":[11,12]},{"type":{"label":"["},"range":[13,14]},{"type":{"label":"num"},"value":3,"range":[14,15]},{"type":{"label":"]"},"range":[15,16]},{"type":{"label":")"},"range":[16,17]}]',
+  ast: "{\"type\":\"CallExpression\",\"callee\":{\"type\":\"Identifier\",\"name\":\"assert\",\"range\":[0,6]},\"arguments\":[{\"type\":\"AssignmentExpression\",\"operator\":\"=\",\"left\":{\"type\":\"ArrayPattern\",\"elements\":[{\"type\":\"Identifier\",\"name\":\"x\",\"range\":[8,9]}],\"range\":[7,10]},\"right\":{\"type\":\"ArrayExpression\",\"elements\":[{\"type\":\"NumericLiteral\",\"value\":3,\"range\":[14,15]}],\"range\":[13,16]},\"range\":[7,16]}],\"range\":[0,17]}",
+  tokens: "[{\"type\":{\"label\":\"name\"},\"value\":\"assert\",\"range\":[0,6]},{\"type\":{\"label\":\"(\"},\"range\":[6,7]},{\"type\":{\"label\":\"[\"},\"range\":[7,8]},{\"type\":{\"label\":\"name\"},\"value\":\"x\",\"range\":[8,9]},{\"type\":{\"label\":\"]\"},\"range\":[9,10]},{\"type\":{\"label\":\"=\"},\"value\":\"=\",\"range\":[11,12]},{\"type\":{\"label\":\"[\"},\"range\":[13,14]},{\"type\":{\"label\":\"num\"},\"value\":3,\"range\":[14,15]},{\"type\":{\"label\":\"]\"},\"range\":[15,16]},{\"type\":{\"label\":\")\"},\"range\":[16,17]}]",
   visitorKeys: _powerAssertVisitorKeys
 }));
-
-assert(_rec7._expr(_rec7._capt((_rec7$_capt = _rec7._capt([_rec7._capt(foo, 'arguments/0/right/elements/0')], 'arguments/0/right'), _rec7$_capt2 = _slicedToArray(_rec7$_capt, 1), x = _rec7$_capt2[0], _rec7$_capt), 'arguments/0'), {
-  content: 'assert([x] = [foo])',
-  filepath: 'test/fixtures/AssignmentExpression/fixture.js',
+assert(_rec7._expr(_rec7._capt((_rec7$_capt = _rec7._capt([_rec7._capt(foo, "arguments/0/right/elements/0")], "arguments/0/right"), _rec7$_capt2 = _slicedToArray(_rec7$_capt, 1), x = _rec7$_capt2[0], _rec7$_capt), "arguments/0"), {
+  content: "assert([x] = [foo])",
+  filepath: "test/fixtures/AssignmentExpression/fixture.js",
   line: 13,
-  ast: '{"type":"CallExpression","callee":{"type":"Identifier","name":"assert","range":[0,6]},"arguments":[{"type":"AssignmentExpression","operator":"=","left":{"type":"ArrayPattern","elements":[{"type":"Identifier","name":"x","range":[8,9]}],"range":[7,10]},"right":{"type":"ArrayExpression","elements":[{"type":"Identifier","name":"foo","range":[14,17]}],"range":[13,18]},"range":[7,18]}],"range":[0,19]}',
-  tokens: '[{"type":{"label":"name"},"value":"assert","range":[0,6]},{"type":{"label":"("},"range":[6,7]},{"type":{"label":"["},"range":[7,8]},{"type":{"label":"name"},"value":"x","range":[8,9]},{"type":{"label":"]"},"range":[9,10]},{"type":{"label":"="},"value":"=","range":[11,12]},{"type":{"label":"["},"range":[13,14]},{"type":{"label":"name"},"value":"foo","range":[14,17]},{"type":{"label":"]"},"range":[17,18]},{"type":{"label":")"},"range":[18,19]}]',
+  ast: "{\"type\":\"CallExpression\",\"callee\":{\"type\":\"Identifier\",\"name\":\"assert\",\"range\":[0,6]},\"arguments\":[{\"type\":\"AssignmentExpression\",\"operator\":\"=\",\"left\":{\"type\":\"ArrayPattern\",\"elements\":[{\"type\":\"Identifier\",\"name\":\"x\",\"range\":[8,9]}],\"range\":[7,10]},\"right\":{\"type\":\"ArrayExpression\",\"elements\":[{\"type\":\"Identifier\",\"name\":\"foo\",\"range\":[14,17]}],\"range\":[13,18]},\"range\":[7,18]}],\"range\":[0,19]}",
+  tokens: "[{\"type\":{\"label\":\"name\"},\"value\":\"assert\",\"range\":[0,6]},{\"type\":{\"label\":\"(\"},\"range\":[6,7]},{\"type\":{\"label\":\"[\"},\"range\":[7,8]},{\"type\":{\"label\":\"name\"},\"value\":\"x\",\"range\":[8,9]},{\"type\":{\"label\":\"]\"},\"range\":[9,10]},{\"type\":{\"label\":\"=\"},\"value\":\"=\",\"range\":[11,12]},{\"type\":{\"label\":\"[\"},\"range\":[13,14]},{\"type\":{\"label\":\"name\"},\"value\":\"foo\",\"range\":[14,17]},{\"type\":{\"label\":\"]\"},\"range\":[17,18]},{\"type\":{\"label\":\")\"},\"range\":[18,19]}]",
   visitorKeys: _powerAssertVisitorKeys
 }));
diff --git a/test/fixtures/AssignmentExpression/expected.js b/test/fixtures/AssignmentExpression/expected.js
index 58733f9..b0f2b74 100644
--- a/test/fixtures/AssignmentExpression/expected.js
+++ b/test/fixtures/AssignmentExpression/expected.js
@@ -9,42 +9,37 @@ var _powerAssertRecorder = function () { function PowerAssertRecorder() { this.c
     _rec6 = new _powerAssertRecorder(),
     _rec7 = new _powerAssertRecorder();
 
-assert(_rec._expr(_rec._capt(counter += 1, 'arguments/0'), {
-  content: 'assert(counter += 1)',
-  filepath: 'test/fixtures/AssignmentExpression/fixture.js',
+assert(_rec._expr(_rec._capt(counter += 1, "arguments/0"), {
+  content: "assert(counter += 1)",
+  filepath: "test/fixtures/AssignmentExpression/fixture.js",
   line: 3
 }));
-
-assert(_rec2._expr(_rec2._capt(dog.age += 1, 'arguments/0'), {
-  content: 'assert(dog.age += 1)',
-  filepath: 'test/fixtures/AssignmentExpression/fixture.js',
+assert(_rec2._expr(_rec2._capt(dog.age += 1, "arguments/0"), {
+  content: "assert(dog.age += 1)",
+  filepath: "test/fixtures/AssignmentExpression/fixture.js",
   line: 5
 }));
-
-assert(_rec3._expr(_rec3._capt(dog.age += 1, 'arguments/0'), {
-  content: 'assert(dog.age += 1)',
-  filepath: 'test/fixtures/AssignmentExpression/fixture.js',
+assert(_rec3._expr(_rec3._capt(dog.age += 1, "arguments/0"), {
+  content: "assert(dog.age += 1)",
+  filepath: "test/fixtures/AssignmentExpression/fixture.js",
   line: 7
 }));
-
-assert.strictEqual(_rec4._expr(_rec4._capt(dog.age += 1, 'arguments/0'), {
-  content: 'assert.strictEqual(dog.age += 1, three)',
-  filepath: 'test/fixtures/AssignmentExpression/fixture.js',
+assert.strictEqual(_rec4._expr(_rec4._capt(dog.age += 1, "arguments/0"), {
+  content: "assert.strictEqual(dog.age += 1, three)",
+  filepath: "test/fixtures/AssignmentExpression/fixture.js",
   line: 9
-}), _rec5._expr(_rec5._capt(three, 'arguments/1'), {
-  content: 'assert.strictEqual(dog.age += 1, three)',
-  filepath: 'test/fixtures/AssignmentExpression/fixture.js',
+}), _rec5._expr(_rec5._capt(three, "arguments/1"), {
+  content: "assert.strictEqual(dog.age += 1, three)",
+  filepath: "test/fixtures/AssignmentExpression/fixture.js",
   line: 9
 }));
-
-assert(_rec6._expr(_rec6._capt([x] = _rec6._capt([3], 'arguments/0/right'), 'arguments/0'), {
-  content: 'assert([x] = [3])',
-  filepath: 'test/fixtures/AssignmentExpression/fixture.js',
+assert(_rec6._expr(_rec6._capt([x] = _rec6._capt([3], "arguments/0/right"), "arguments/0"), {
+  content: "assert([x] = [3])",
+  filepath: "test/fixtures/AssignmentExpression/fixture.js",
   line: 11
 }));
-
-assert(_rec7._expr(_rec7._capt([x] = _rec7._capt([_rec7._capt(foo, 'arguments/0/right/elements/0')], 'arguments/0/right'), 'arguments/0'), {
-  content: 'assert([x] = [foo])',
-  filepath: 'test/fixtures/AssignmentExpression/fixture.js',
+assert(_rec7._expr(_rec7._capt([x] = _rec7._capt([_rec7._capt(foo, "arguments/0/right/elements/0")], "arguments/0/right"), "arguments/0"), {
+  content: "assert([x] = [foo])",
+  filepath: "test/fixtures/AssignmentExpression/fixture.js",
   line: 13
 }));
diff --git a/test/fixtures/AwaitExpression/expected-presets-stage-3.js b/test/fixtures/AwaitExpression/expected-presets-stage-3.js
index 257f347..6a3db05 100644
--- a/test/fixtures/AwaitExpression/expected-presets-stage-3.js
+++ b/test/fixtures/AwaitExpression/expected-presets-stage-3.js
@@ -1,56 +1,20 @@
 'use strict';
 
-var _powerAssertVisitorKeys = '{"ArrayExpression":["elements"],"AssignmentExpression":["left","right"],"BinaryExpression":["left","right"],"Directive":["value"],"DirectiveLiteral":[],"BlockStatement":["directives","body"],"BreakStatement":["label"],"CallExpression":["callee","arguments"],"CatchClause":["param","body"],"ConditionalExpression":["test","consequent","alternate"],"ContinueStatement":["label"],"DebuggerStatement":[],"DoWhileStatement":["test","body"],"EmptyStatement":[],"ExpressionStatement":["expression"],"File":["program"],"ForInStatement":["left","right","body"],"ForStatement":["init","test","update","body"],"FunctionDeclaration":["id","params","body","returnType","typeParameters"],"FunctionExpression":["id","params","body","returnType","typeParameters"],"Identifier":["typeAnnotation"],"IfStatement":["test","consequent","alternate"],"LabeledStatement":["label","body"],"StringLiteral":[],"NumericLiteral":[],"NullLiteral":[],"BooleanLiteral":[],"RegExpLiteral":[],"LogicalExpression":["left","right"],"MemberExpression":["object","property"],"NewExpression":["callee","arguments"],"Program":["directives","body"],"ObjectExpression":["properties"],"ObjectMethod":["key","params","body","decorators","returnType","typeParameters"],"ObjectProperty":["key","value","decorators"],"RestElement":["argument","typeAnnotation"],"ReturnStatement":["argument"],"SequenceExpression":["expressions"],"SwitchCase":["test","consequent"],"SwitchStatement":["discriminant","cases"],"ThisExpression":[],"ThrowStatement":["argument"],"TryStatement":["block","handler","finalizer"],"UnaryExpression":["argument"],"UpdateExpression":["argument"],"VariableDeclaration":["declarations"],"VariableDeclarator":["id","init"],"WhileStatement":["test","body"],"WithStatement":["object","body"],"AssignmentPattern":["left","right"],"ArrayPattern":["elements","typeAnnotation"],"ArrowFunctionExpression":["params","body","returnType","typeParameters"],"ClassBody":["body"],"ClassDeclaration":["id","body","superClass","mixins","typeParameters","superTypeParameters","implements","decorators"],"ClassExpression":["id","body","superClass","mixins","typeParameters","superTypeParameters","implements","decorators"],"ExportAllDeclaration":["source"],"ExportDefaultDeclaration":["declaration"],"ExportNamedDeclaration":["declaration","specifiers","source"],"ExportSpecifier":["local","exported"],"ForOfStatement":["left","right","body"],"ImportDeclaration":["specifiers","source"],"ImportDefaultSpecifier":["local"],"ImportNamespaceSpecifier":["local"],"ImportSpecifier":["local","imported"],"MetaProperty":["meta","property"],"ClassMethod":["key","params","body","decorators","returnType","typeParameters"],"ObjectPattern":["properties","typeAnnotation"],"SpreadElement":["argument"],"Super":[],"TaggedTemplateExpression":["tag","quasi"],"TemplateElement":[],"TemplateLiteral":["quasis","expressions"],"YieldExpression":["argument"],"AnyTypeAnnotation":[],"ArrayTypeAnnotation":["elementType"],"BooleanTypeAnnotation":[],"BooleanLiteralTypeAnnotation":[],"NullLiteralTypeAnnotation":[],"ClassImplements":["id","typeParameters"],"ClassProperty":["key","value","typeAnnotation","decorators"],"DeclareClass":["id","typeParameters","extends","body"],"DeclareFunction":["id"],"DeclareInterface":["id","typeParameters","extends","body"],"DeclareModule":["id","body"],"DeclareModuleExports":["typeAnnotation"],"DeclareTypeAlias":["id","typeParameters","right"],"DeclareOpaqueType":["id","typeParameters","supertype"],"DeclareVariable":["id"],"DeclareExportDeclaration":["declaration","specifiers","source"],"ExistentialTypeParam":[],"FunctionTypeAnnotation":["typeParameters","params","rest","returnType"],"FunctionTypeParam":["name","typeAnnotation"],"GenericTypeAnnotation":["id","typeParameters"],"InterfaceExtends":["id","typeParameters"],"InterfaceDeclaration":["id","typeParameters","extends","body"],"IntersectionTypeAnnotation":["types"],"MixedTypeAnnotation":[],"EmptyTypeAnnotation":[],"NullableTypeAnnotation":["typeAnnotation"],"NumericLiteralTypeAnnotation":[],"NumberTypeAnnotation":[],"StringLiteralTypeAnnotation":[],"StringTypeAnnotation":[],"ThisTypeAnnotation":[],"TupleTypeAnnotation":["types"],"TypeofTypeAnnotation":["argument"],"TypeAlias":["id","typeParameters","right"],"OpaqueType":["id","typeParameters","impltype","supertype"],"TypeAnnotation":["typeAnnotation"],"TypeCastExpression":["expression","typeAnnotation"],"TypeParameter":["bound"],"TypeParameterDeclaration":["params"],"TypeParameterInstantiation":["params"],"ObjectTypeAnnotation":["properties","indexers","callProperties"],"ObjectTypeCallProperty":["value"],"ObjectTypeIndexer":["id","key","value"],"ObjectTypeProperty":["key","value"],"ObjectTypeSpreadProperty":["argument"],"QualifiedTypeIdentifier":["id","qualification"],"UnionTypeAnnotation":["types"],"VoidTypeAnnotation":[],"JSXAttribute":["name","value"],"JSXClosingElement":["name"],"JSXElement":["openingElement","children","closingElement"],"JSXEmptyExpression":[],"JSXExpressionContainer":["expression"],"JSXSpreadChild":["expression"],"JSXIdentifier":[],"JSXMemberExpression":["object","property"],"JSXNamespacedName":["namespace","name"],"JSXOpeningElement":["name","attributes"],"JSXSpreadAttribute":["argument"],"JSXText":[],"Noop":[],"ParenthesizedExpression":["expression"],"AwaitExpression":["argument"],"ForAwaitStatement":["left","right","body"],"BindExpression":["object","callee"],"Import":[],"Decorator":["expression"],"DoExpression":["body"],"ExportDefaultSpecifier":["exported"],"ExportNamespaceSpecifier":["exported"],"RestProperty":["argument"],"SpreadProperty":["argument"]}',
+var _powerAssertVisitorKeys = "{\"ArrayExpression\":[\"elements\"],\"AssignmentExpression\":[\"left\",\"right\"],\"BinaryExpression\":[\"left\",\"right\"],\"Directive\":[\"value\"],\"DirectiveLiteral\":[],\"BlockStatement\":[\"directives\",\"body\"],\"BreakStatement\":[\"label\"],\"CallExpression\":[\"callee\",\"arguments\",\"typeParameters\"],\"CatchClause\":[\"param\",\"body\"],\"ConditionalExpression\":[\"test\",\"consequent\",\"alternate\"],\"ContinueStatement\":[\"label\"],\"DebuggerStatement\":[],\"DoWhileStatement\":[\"test\",\"body\"],\"EmptyStatement\":[],\"ExpressionStatement\":[\"expression\"],\"File\":[\"program\"],\"ForInStatement\":[\"left\",\"right\",\"body\"],\"ForStatement\":[\"init\",\"test\",\"update\",\"body\"],\"FunctionDeclaration\":[\"id\",\"params\",\"body\",\"returnType\",\"typeParameters\"],\"FunctionExpression\":[\"id\",\"params\",\"body\",\"returnType\",\"typeParameters\"],\"Identifier\":[\"typeAnnotation\"],\"IfStatement\":[\"test\",\"consequent\",\"alternate\"],\"LabeledStatement\":[\"label\",\"body\"],\"StringLiteral\":[],\"NumericLiteral\":[],\"NullLiteral\":[],\"BooleanLiteral\":[],\"RegExpLiteral\":[],\"LogicalExpression\":[\"left\",\"right\"],\"MemberExpression\":[\"object\",\"property\"],\"NewExpression\":[\"callee\",\"arguments\",\"typeParameters\"],\"Program\":[\"directives\",\"body\"],\"ObjectExpression\":[\"properties\"],\"ObjectMethod\":[\"key\",\"params\",\"body\",\"decorators\",\"returnType\",\"typeParameters\"],\"ObjectProperty\":[\"key\",\"value\",\"decorators\"],\"RestElement\":[\"argument\",\"typeAnnotation\"],\"ReturnStatement\":[\"argument\"],\"SequenceExpression\":[\"expressions\"],\"SwitchCase\":[\"test\",\"consequent\"],\"SwitchStatement\":[\"discriminant\",\"cases\"],\"ThisExpression\":[],\"ThrowStatement\":[\"argument\"],\"TryStatement\":[\"block\",\"handler\",\"finalizer\"],\"UnaryExpression\":[\"argument\"],\"UpdateExpression\":[\"argument\"],\"VariableDeclaration\":[\"declarations\"],\"VariableDeclarator\":[\"id\",\"init\"],\"WhileStatement\":[\"test\",\"body\"],\"WithStatement\":[\"object\",\"body\"],\"AssignmentPattern\":[\"left\",\"right\"],\"ArrayPattern\":[\"elements\",\"typeAnnotation\"],\"ArrowFunctionExpression\":[\"params\",\"body\",\"returnType\",\"typeParameters\"],\"ClassBody\":[\"body\"],\"ClassDeclaration\":[\"id\",\"body\",\"superClass\",\"mixins\",\"typeParameters\",\"superTypeParameters\",\"implements\",\"decorators\"],\"ClassExpression\":[\"id\",\"body\",\"superClass\",\"mixins\",\"typeParameters\",\"superTypeParameters\",\"implements\",\"decorators\"],\"ExportAllDeclaration\":[\"source\"],\"ExportDefaultDeclaration\":[\"declaration\"],\"ExportNamedDeclaration\":[\"declaration\",\"specifiers\",\"source\"],\"ExportSpecifier\":[\"local\",\"exported\"],\"ForOfStatement\":[\"left\",\"right\",\"body\"],\"ImportDeclaration\":[\"specifiers\",\"source\"],\"ImportDefaultSpecifier\":[\"local\"],\"ImportNamespaceSpecifier\":[\"local\"],\"ImportSpecifier\":[\"local\",\"imported\"],\"MetaProperty\":[\"meta\",\"property\"],\"ClassMethod\":[\"key\",\"params\",\"body\",\"decorators\",\"returnType\",\"typeParameters\"],\"ObjectPattern\":[\"properties\",\"typeAnnotation\"],\"SpreadElement\":[\"argument\"],\"Super\":[],\"TaggedTemplateExpression\":[\"tag\",\"quasi\"],\"TemplateElement\":[],\"TemplateLiteral\":[\"quasis\",\"expressions\"],\"YieldExpression\":[\"argument\"],\"AnyTypeAnnotation\":[],\"ArrayTypeAnnotation\":[\"elementType\"],\"BooleanTypeAnnotation\":[],\"BooleanLiteralTypeAnnotation\":[],\"NullLiteralTypeAnnotation\":[],\"ClassImplements\":[\"id\",\"typeParameters\"],\"DeclareClass\":[\"id\",\"typeParameters\",\"extends\",\"body\"],\"DeclareFunction\":[\"id\"],\"DeclareInterface\":[\"id\",\"typeParameters\",\"extends\",\"body\"],\"DeclareModule\":[\"id\",\"body\"],\"DeclareModuleExports\":[\"typeAnnotation\"],\"DeclareTypeAlias\":[\"id\",\"typeParameters\",\"right\"],\"DeclareOpaqueType\":[\"id\",\"typeParameters\",\"supertype\"],\"DeclareVariable\":[\"id\"],\"DeclareExportDeclaration\":[\"declaration\",\"specifiers\",\"source\"],\"DeclareExportAllDeclaration\":[\"source\"],\"DeclaredPredicate\":[\"value\"],\"ExistsTypeAnnotation\":[],\"FunctionTypeAnnotation\":[\"typeParameters\",\"params\",\"rest\",\"returnType\"],\"FunctionTypeParam\":[\"name\",\"typeAnnotation\"],\"GenericTypeAnnotation\":[\"id\",\"typeParameters\"],\"InferredPredicate\":[],\"InterfaceExtends\":[\"id\",\"typeParameters\"],\"InterfaceDeclaration\":[\"id\",\"typeParameters\",\"extends\",\"body\"],\"IntersectionTypeAnnotation\":[\"types\"],\"MixedTypeAnnotation\":[],\"EmptyTypeAnnotation\":[],\"NullableTypeAnnotation\":[\"typeAnnotation\"],\"NumberLiteralTypeAnnotation\":[],\"NumberTypeAnnotation\":[],\"ObjectTypeAnnotation\":[\"properties\",\"indexers\",\"callProperties\"],\"ObjectTypeCallProperty\":[\"value\"],\"ObjectTypeIndexer\":[\"id\",\"key\",\"value\"],\"ObjectTypeProperty\":[\"key\",\"value\"],\"ObjectTypeSpreadProperty\":[\"argument\"],\"OpaqueType\":[\"id\",\"typeParameters\",\"supertype\",\"impltype\"],\"QualifiedTypeIdentifier\":[\"id\",\"qualification\"],\"StringLiteralTypeAnnotation\":[],\"StringTypeAnnotation\":[],\"ThisTypeAnnotation\":[],\"TupleTypeAnnotation\":[\"types\"],\"TypeofTypeAnnotation\":[\"argument\"],\"TypeAlias\":[\"id\",\"typeParameters\",\"right\"],\"TypeAnnotation\":[\"typeAnnotation\"],\"TypeCastExpression\":[\"expression\",\"typeAnnotation\"],\"TypeParameter\":[\"bound\",\"default\"],\"TypeParameterDeclaration\":[\"params\"],\"TypeParameterInstantiation\":[\"params\"],\"UnionTypeAnnotation\":[\"types\"],\"VoidTypeAnnotation\":[],\"JSXAttribute\":[\"name\",\"value\"],\"JSXClosingElement\":[\"name\"],\"JSXElement\":[\"openingElement\",\"children\",\"closingElement\"],\"JSXEmptyExpression\":[],\"JSXExpressionContainer\":[\"expression\"],\"JSXSpreadChild\":[\"expression\"],\"JSXIdentifier\":[],\"JSXMemberExpression\":[\"object\",\"property\"],\"JSXNamespacedName\":[\"namespace\",\"name\"],\"JSXOpeningElement\":[\"name\",\"attributes\"],\"JSXSpreadAttribute\":[\"argument\"],\"JSXText\":[],\"JSXFragment\":[\"openingFragment\",\"children\",\"closingFragment\"],\"JSXOpeningFragment\":[],\"JSXClosingFragment\":[],\"Noop\":[],\"ParenthesizedExpression\":[\"expression\"],\"AwaitExpression\":[\"argument\"],\"BindExpression\":[\"object\",\"callee\"],\"ClassProperty\":[\"key\",\"value\",\"typeAnnotation\",\"decorators\"],\"Import\":[],\"Decorator\":[\"expression\"],\"DoExpression\":[\"body\"],\"ExportDefaultSpecifier\":[\"exported\"],\"ExportNamespaceSpecifier\":[\"exported\"],\"TSParameterProperty\":[\"parameter\"],\"TSDeclareFunction\":[\"id\",\"typeParameters\",\"params\",\"returnType\"],\"TSDeclareMethod\":[\"decorators\",\"key\",\"typeParameters\",\"params\",\"returnType\"],\"TSQualifiedName\":[\"left\",\"right\"],\"TSCallSignatureDeclaration\":[\"typeParameters\",\"parameters\",\"typeAnnotation\"],\"TSConstructSignatureDeclaration\":[\"typeParameters\",\"parameters\",\"typeAnnotation\"],\"TSPropertySignature\":[\"key\",\"typeAnnotation\",\"initializer\"],\"TSMethodSignature\":[\"key\",\"typeParameters\",\"parameters\",\"typeAnnotation\"],\"TSIndexSignature\":[\"parameters\",\"typeAnnotation\"],\"TSAnyKeyword\":[],\"TSNumberKeyword\":[],\"TSObjectKeyword\":[],\"TSBooleanKeyword\":[],\"TSStringKeyword\":[],\"TSSymbolKeyword\":[],\"TSVoidKeyword\":[],\"TSUndefinedKeyword\":[],\"TSNullKeyword\":[],\"TSNeverKeyword\":[],\"TSThisType\":[],\"TSFunctionType\":[\"typeParameters\",\"typeAnnotation\"],\"TSConstructorType\":[\"typeParameters\",\"typeAnnotation\"],\"TSTypeReference\":[\"typeName\",\"typeParameters\"],\"TSTypePredicate\":[\"parameterName\",\"typeAnnotation\"],\"TSTypeQuery\":[\"exprName\"],\"TSTypeLiteral\":[\"members\"],\"TSArrayType\":[\"elementType\"],\"TSTupleType\":[\"elementTypes\"],\"TSUnionType\":[\"types\"],\"TSIntersectionType\":[\"types\"],\"TSParenthesizedType\":[\"typeAnnotation\"],\"TSTypeOperator\":[\"typeAnnotation\"],\"TSIndexedAccessType\":[\"objectType\",\"indexType\"],\"TSMappedType\":[\"typeParameter\",\"typeAnnotation\"],\"TSLiteralType\":[\"literal\"],\"TSExpressionWithTypeArguments\":[\"expression\",\"typeParameters\"],\"TSInterfaceDeclaration\":[\"id\",\"typeParameters\",\"extends\",\"body\"],\"TSInterfaceBody\":[\"body\"],\"TSTypeAliasDeclaration\":[\"id\",\"typeParameters\",\"typeAnnotation\"],\"TSAsExpression\":[\"expression\",\"typeAnnotation\"],\"TSTypeAssertion\":[\"typeAnnotation\",\"expression\"],\"TSEnumDeclaration\":[\"id\",\"members\"],\"TSEnumMember\":[\"id\",\"initializer\"],\"TSModuleDeclaration\":[\"id\",\"body\"],\"TSModuleBlock\":[\"body\"],\"TSImportEqualsDeclaration\":[\"id\",\"moduleReference\"],\"TSExternalModuleReference\":[\"expression\"],\"TSNonNullExpression\":[\"expression\"],\"TSExportAssignment\":[\"expression\"],\"TSNamespaceExportDeclaration\":[\"id\"],\"TSTypeAnnotation\":[\"typeAnnotation\"],\"TSTypeParameterInstantiation\":[\"params\"],\"TSTypeParameterDeclaration\":[\"params\"],\"TSTypeParameter\":[\"constraint\",\"default\"]}",
     _powerAssertRecorder = function () { function PowerAssertRecorder() { this.captured = []; } PowerAssertRecorder.prototype._capt = function _capt(value, espath) { this.captured.push({ value: value, espath: espath }); return value; }; PowerAssertRecorder.prototype._expr = function _expr(value, source) { var capturedValues = this.captured; this.captured = []; return { powerAssertContext: { value: value, events: capturedValues }, source: source }; }; return PowerAssertRecorder; }();
 
-var myAsync = function () {
-  var _ref = _asyncToGenerator( /*#__PURE__*/regeneratorRuntime.mark(function _callee(a) {
-    var _rec = new _powerAssertRecorder();
-
-    return regeneratorRuntime.wrap(function _callee$(_context) {
-      while (1) {
-        switch (_context.prev = _context.next) {
-          case 0:
-            _context.t0 = assert;
-            _context.t1 = _rec;
-            _context.t2 = _rec;
-            _context.t3 = _rec;
-            _context.next = 6;
-            return a;
-
-          case 6:
-            _context.t4 = _context.sent;
-            _context.t5 = _context.t3._capt.call(_context.t3, _context.t4, 'arguments/0/left');
-            _context.t6 = _context.t5 === 3;
-            _context.t7 = _context.t2._capt.call(_context.t2, _context.t6, 'arguments/0');
-            _context.t8 = {
-              content: 'assert((await a) === 3)',
-              filepath: 'test/fixtures/AwaitExpression/fixture.js',
-              line: 4,
-              async: true,
-              ast: '{"type":"CallExpression","callee":{"type":"Identifier","name":"assert","range":[0,6]},"arguments":[{"type":"BinaryExpression","operator":"===","left":{"type":"AwaitExpression","argument":{"type":"Identifier","name":"a","range":[14,15]},"range":[8,15]},"right":{"type":"NumericLiteral","value":3,"range":[21,22]},"range":[7,22]}],"range":[0,23]}',
-              tokens: '[{"type":{"label":"name"},"value":"assert","range":[0,6]},{"type":{"label":"("},"range":[6,7]},{"type":{"label":"("},"range":[7,8]},{"type":{"label":"name"},"value":"await","range":[8,13]},{"type":{"label":"name"},"value":"a","range":[14,15]},{"type":{"label":")"},"range":[15,16]},{"type":{"label":"==/!="},"value":"===","range":[17,20]},{"type":{"label":"num"},"value":3,"range":[21,22]},{"type":{"label":")"},"range":[22,23]}]',
-              visitorKeys: _powerAssertVisitorKeys
-            };
-            _context.t9 = _context.t1._expr.call(_context.t1, _context.t7, _context.t8);
-            (0, _context.t0)(_context.t9);
-
-          case 13:
-          case 'end':
-            return _context.stop();
-        }
-      }
-    }, _callee, this);
+async function myAsync(a) {
+  var _rec = new _powerAssertRecorder();
+
+  assert(_rec._expr(_rec._capt(_rec._capt((await a), "arguments/0/left") === 3, "arguments/0"), {
+    content: "assert((await a) === 3)",
+    filepath: "test/fixtures/AwaitExpression/fixture.js",
+    line: 4,
+    async: true,
+    ast: "{\"type\":\"CallExpression\",\"callee\":{\"type\":\"Identifier\",\"name\":\"assert\",\"range\":[0,6]},\"arguments\":[{\"type\":\"BinaryExpression\",\"operator\":\"===\",\"left\":{\"type\":\"AwaitExpression\",\"argument\":{\"type\":\"Identifier\",\"name\":\"a\",\"range\":[14,15]},\"range\":[8,15]},\"right\":{\"type\":\"NumericLiteral\",\"value\":3,\"range\":[21,22]},\"range\":[7,22]}],\"range\":[0,23]}",
+    tokens: "[{\"type\":{\"label\":\"name\"},\"value\":\"assert\",\"range\":[0,6]},{\"type\":{\"label\":\"(\"},\"range\":[6,7]},{\"type\":{\"label\":\"(\"},\"range\":[7,8]},{\"type\":{\"label\":\"name\"},\"value\":\"await\",\"range\":[8,13]},{\"type\":{\"label\":\"name\"},\"value\":\"a\",\"range\":[14,15]},{\"type\":{\"label\":\")\"},\"range\":[15,16]},{\"type\":{\"label\":\"==/!=\"},\"value\":\"===\",\"range\":[17,20]},{\"type\":{\"label\":\"num\"},\"value\":3,\"range\":[21,22]},{\"type\":{\"label\":\")\"},\"range\":[22,23]}]",
+    visitorKeys: _powerAssertVisitorKeys
   }));
-
-  return function myAsync(_x) {
-    return _ref.apply(this, arguments);
-  };
-}();
-
-// function notAsync(a){
+} // function notAsync(a){
 //   assert((await (a)) === 3);
 // }
-
-
-function _asyncToGenerator(fn) { return function () { var gen = fn.apply(this, arguments); return new Promise(function (resolve, reject) { function step(key, arg) { try { var info = gen[key](arg); var value = info.value; } catch (error) { reject(error); return; } if (info.done) { resolve(value); } else { return Promise.resolve(value).then(function (value) { step("next", value); }, function (err) { step("throw", err); }); } } return step("next"); }); }; }
diff --git a/test/fixtures/BinaryExpression/expected-presets-es2015.js b/test/fixtures/BinaryExpression/expected-presets-es2015.js
index b051a97..78b2cb3 100644
--- a/test/fixtures/BinaryExpression/expected-presets-es2015.js
+++ b/test/fixtures/BinaryExpression/expected-presets-es2015.js
@@ -1,6 +1,6 @@
 'use strict';
 
-var _powerAssertVisitorKeys = '{"ArrayExpression":["elements"],"AssignmentExpression":["left","right"],"BinaryExpression":["left","right"],"Directive":["value"],"DirectiveLiteral":[],"BlockStatement":["directives","body"],"BreakStatement":["label"],"CallExpression":["callee","arguments"],"CatchClause":["param","body"],"ConditionalExpression":["test","consequent","alternate"],"ContinueStatement":["label"],"DebuggerStatement":[],"DoWhileStatement":["test","body"],"EmptyStatement":[],"ExpressionStatement":["expression"],"File":["program"],"ForInStatement":["left","right","body"],"ForStatement":["init","test","update","body"],"FunctionDeclaration":["id","params","body","returnType","typeParameters"],"FunctionExpression":["id","params","body","returnType","typeParameters"],"Identifier":["typeAnnotation"],"IfStatement":["test","consequent","alternate"],"LabeledStatement":["label","body"],"StringLiteral":[],"NumericLiteral":[],"NullLiteral":[],"BooleanLiteral":[],"RegExpLiteral":[],"LogicalExpression":["left","right"],"MemberExpression":["object","property"],"NewExpression":["callee","arguments"],"Program":["directives","body"],"ObjectExpression":["properties"],"ObjectMethod":["key","params","body","decorators","returnType","typeParameters"],"ObjectProperty":["key","value","decorators"],"RestElement":["argument","typeAnnotation"],"ReturnStatement":["argument"],"SequenceExpression":["expressions"],"SwitchCase":["test","consequent"],"SwitchStatement":["discriminant","cases"],"ThisExpression":[],"ThrowStatement":["argument"],"TryStatement":["block","handler","finalizer"],"UnaryExpression":["argument"],"UpdateExpression":["argument"],"VariableDeclaration":["declarations"],"VariableDeclarator":["id","init"],"WhileStatement":["test","body"],"WithStatement":["object","body"],"AssignmentPattern":["left","right"],"ArrayPattern":["elements","typeAnnotation"],"ArrowFunctionExpression":["params","body","returnType","typeParameters"],"ClassBody":["body"],"ClassDeclaration":["id","body","superClass","mixins","typeParameters","superTypeParameters","implements","decorators"],"ClassExpression":["id","body","superClass","mixins","typeParameters","superTypeParameters","implements","decorators"],"ExportAllDeclaration":["source"],"ExportDefaultDeclaration":["declaration"],"ExportNamedDeclaration":["declaration","specifiers","source"],"ExportSpecifier":["local","exported"],"ForOfStatement":["left","right","body"],"ImportDeclaration":["specifiers","source"],"ImportDefaultSpecifier":["local"],"ImportNamespaceSpecifier":["local"],"ImportSpecifier":["local","imported"],"MetaProperty":["meta","property"],"ClassMethod":["key","params","body","decorators","returnType","typeParameters"],"ObjectPattern":["properties","typeAnnotation"],"SpreadElement":["argument"],"Super":[],"TaggedTemplateExpression":["tag","quasi"],"TemplateElement":[],"TemplateLiteral":["quasis","expressions"],"YieldExpression":["argument"],"AnyTypeAnnotation":[],"ArrayTypeAnnotation":["elementType"],"BooleanTypeAnnotation":[],"BooleanLiteralTypeAnnotation":[],"NullLiteralTypeAnnotation":[],"ClassImplements":["id","typeParameters"],"ClassProperty":["key","value","typeAnnotation","decorators"],"DeclareClass":["id","typeParameters","extends","body"],"DeclareFunction":["id"],"DeclareInterface":["id","typeParameters","extends","body"],"DeclareModule":["id","body"],"DeclareModuleExports":["typeAnnotation"],"DeclareTypeAlias":["id","typeParameters","right"],"DeclareOpaqueType":["id","typeParameters","supertype"],"DeclareVariable":["id"],"DeclareExportDeclaration":["declaration","specifiers","source"],"ExistentialTypeParam":[],"FunctionTypeAnnotation":["typeParameters","params","rest","returnType"],"FunctionTypeParam":["name","typeAnnotation"],"GenericTypeAnnotation":["id","typeParameters"],"InterfaceExtends":["id","typeParameters"],"InterfaceDeclaration":["id","typeParameters","extends","body"],"IntersectionTypeAnnotation":["types"],"MixedTypeAnnotation":[],"EmptyTypeAnnotation":[],"NullableTypeAnnotation":["typeAnnotation"],"NumericLiteralTypeAnnotation":[],"NumberTypeAnnotation":[],"StringLiteralTypeAnnotation":[],"StringTypeAnnotation":[],"ThisTypeAnnotation":[],"TupleTypeAnnotation":["types"],"TypeofTypeAnnotation":["argument"],"TypeAlias":["id","typeParameters","right"],"OpaqueType":["id","typeParameters","impltype","supertype"],"TypeAnnotation":["typeAnnotation"],"TypeCastExpression":["expression","typeAnnotation"],"TypeParameter":["bound"],"TypeParameterDeclaration":["params"],"TypeParameterInstantiation":["params"],"ObjectTypeAnnotation":["properties","indexers","callProperties"],"ObjectTypeCallProperty":["value"],"ObjectTypeIndexer":["id","key","value"],"ObjectTypeProperty":["key","value"],"ObjectTypeSpreadProperty":["argument"],"QualifiedTypeIdentifier":["id","qualification"],"UnionTypeAnnotation":["types"],"VoidTypeAnnotation":[],"JSXAttribute":["name","value"],"JSXClosingElement":["name"],"JSXElement":["openingElement","children","closingElement"],"JSXEmptyExpression":[],"JSXExpressionContainer":["expression"],"JSXSpreadChild":["expression"],"JSXIdentifier":[],"JSXMemberExpression":["object","property"],"JSXNamespacedName":["namespace","name"],"JSXOpeningElement":["name","attributes"],"JSXSpreadAttribute":["argument"],"JSXText":[],"Noop":[],"ParenthesizedExpression":["expression"],"AwaitExpression":["argument"],"ForAwaitStatement":["left","right","body"],"BindExpression":["object","callee"],"Import":[],"Decorator":["expression"],"DoExpression":["body"],"ExportDefaultSpecifier":["exported"],"ExportNamespaceSpecifier":["exported"],"RestProperty":["argument"],"SpreadProperty":["argument"]}',
+var _powerAssertVisitorKeys = "{\"ArrayExpression\":[\"elements\"],\"AssignmentExpression\":[\"left\",\"right\"],\"BinaryExpression\":[\"left\",\"right\"],\"Directive\":[\"value\"],\"DirectiveLiteral\":[],\"BlockStatement\":[\"directives\",\"body\"],\"BreakStatement\":[\"label\"],\"CallExpression\":[\"callee\",\"arguments\",\"typeParameters\"],\"CatchClause\":[\"param\",\"body\"],\"ConditionalExpression\":[\"test\",\"consequent\",\"alternate\"],\"ContinueStatement\":[\"label\"],\"DebuggerStatement\":[],\"DoWhileStatement\":[\"test\",\"body\"],\"EmptyStatement\":[],\"ExpressionStatement\":[\"expression\"],\"File\":[\"program\"],\"ForInStatement\":[\"left\",\"right\",\"body\"],\"ForStatement\":[\"init\",\"test\",\"update\",\"body\"],\"FunctionDeclaration\":[\"id\",\"params\",\"body\",\"returnType\",\"typeParameters\"],\"FunctionExpression\":[\"id\",\"params\",\"body\",\"returnType\",\"typeParameters\"],\"Identifier\":[\"typeAnnotation\"],\"IfStatement\":[\"test\",\"consequent\",\"alternate\"],\"LabeledStatement\":[\"label\",\"body\"],\"StringLiteral\":[],\"NumericLiteral\":[],\"NullLiteral\":[],\"BooleanLiteral\":[],\"RegExpLiteral\":[],\"LogicalExpression\":[\"left\",\"right\"],\"MemberExpression\":[\"object\",\"property\"],\"NewExpression\":[\"callee\",\"arguments\",\"typeParameters\"],\"Program\":[\"directives\",\"body\"],\"ObjectExpression\":[\"properties\"],\"ObjectMethod\":[\"key\",\"params\",\"body\",\"decorators\",\"returnType\",\"typeParameters\"],\"ObjectProperty\":[\"key\",\"value\",\"decorators\"],\"RestElement\":[\"argument\",\"typeAnnotation\"],\"ReturnStatement\":[\"argument\"],\"SequenceExpression\":[\"expressions\"],\"SwitchCase\":[\"test\",\"consequent\"],\"SwitchStatement\":[\"discriminant\",\"cases\"],\"ThisExpression\":[],\"ThrowStatement\":[\"argument\"],\"TryStatement\":[\"block\",\"handler\",\"finalizer\"],\"UnaryExpression\":[\"argument\"],\"UpdateExpression\":[\"argument\"],\"VariableDeclaration\":[\"declarations\"],\"VariableDeclarator\":[\"id\",\"init\"],\"WhileStatement\":[\"test\",\"body\"],\"WithStatement\":[\"object\",\"body\"],\"AssignmentPattern\":[\"left\",\"right\"],\"ArrayPattern\":[\"elements\",\"typeAnnotation\"],\"ArrowFunctionExpression\":[\"params\",\"body\",\"returnType\",\"typeParameters\"],\"ClassBody\":[\"body\"],\"ClassDeclaration\":[\"id\",\"body\",\"superClass\",\"mixins\",\"typeParameters\",\"superTypeParameters\",\"implements\",\"decorators\"],\"ClassExpression\":[\"id\",\"body\",\"superClass\",\"mixins\",\"typeParameters\",\"superTypeParameters\",\"implements\",\"decorators\"],\"ExportAllDeclaration\":[\"source\"],\"ExportDefaultDeclaration\":[\"declaration\"],\"ExportNamedDeclaration\":[\"declaration\",\"specifiers\",\"source\"],\"ExportSpecifier\":[\"local\",\"exported\"],\"ForOfStatement\":[\"left\",\"right\",\"body\"],\"ImportDeclaration\":[\"specifiers\",\"source\"],\"ImportDefaultSpecifier\":[\"local\"],\"ImportNamespaceSpecifier\":[\"local\"],\"ImportSpecifier\":[\"local\",\"imported\"],\"MetaProperty\":[\"meta\",\"property\"],\"ClassMethod\":[\"key\",\"params\",\"body\",\"decorators\",\"returnType\",\"typeParameters\"],\"ObjectPattern\":[\"properties\",\"typeAnnotation\"],\"SpreadElement\":[\"argument\"],\"Super\":[],\"TaggedTemplateExpression\":[\"tag\",\"quasi\"],\"TemplateElement\":[],\"TemplateLiteral\":[\"quasis\",\"expressions\"],\"YieldExpression\":[\"argument\"],\"AnyTypeAnnotation\":[],\"ArrayTypeAnnotation\":[\"elementType\"],\"BooleanTypeAnnotation\":[],\"BooleanLiteralTypeAnnotation\":[],\"NullLiteralTypeAnnotation\":[],\"ClassImplements\":[\"id\",\"typeParameters\"],\"DeclareClass\":[\"id\",\"typeParameters\",\"extends\",\"body\"],\"DeclareFunction\":[\"id\"],\"DeclareInterface\":[\"id\",\"typeParameters\",\"extends\",\"body\"],\"DeclareModule\":[\"id\",\"body\"],\"DeclareModuleExports\":[\"typeAnnotation\"],\"DeclareTypeAlias\":[\"id\",\"typeParameters\",\"right\"],\"DeclareOpaqueType\":[\"id\",\"typeParameters\",\"supertype\"],\"DeclareVariable\":[\"id\"],\"DeclareExportDeclaration\":[\"declaration\",\"specifiers\",\"source\"],\"DeclareExportAllDeclaration\":[\"source\"],\"DeclaredPredicate\":[\"value\"],\"ExistsTypeAnnotation\":[],\"FunctionTypeAnnotation\":[\"typeParameters\",\"params\",\"rest\",\"returnType\"],\"FunctionTypeParam\":[\"name\",\"typeAnnotation\"],\"GenericTypeAnnotation\":[\"id\",\"typeParameters\"],\"InferredPredicate\":[],\"InterfaceExtends\":[\"id\",\"typeParameters\"],\"InterfaceDeclaration\":[\"id\",\"typeParameters\",\"extends\",\"body\"],\"IntersectionTypeAnnotation\":[\"types\"],\"MixedTypeAnnotation\":[],\"EmptyTypeAnnotation\":[],\"NullableTypeAnnotation\":[\"typeAnnotation\"],\"NumberLiteralTypeAnnotation\":[],\"NumberTypeAnnotation\":[],\"ObjectTypeAnnotation\":[\"properties\",\"indexers\",\"callProperties\"],\"ObjectTypeCallProperty\":[\"value\"],\"ObjectTypeIndexer\":[\"id\",\"key\",\"value\"],\"ObjectTypeProperty\":[\"key\",\"value\"],\"ObjectTypeSpreadProperty\":[\"argument\"],\"OpaqueType\":[\"id\",\"typeParameters\",\"supertype\",\"impltype\"],\"QualifiedTypeIdentifier\":[\"id\",\"qualification\"],\"StringLiteralTypeAnnotation\":[],\"StringTypeAnnotation\":[],\"ThisTypeAnnotation\":[],\"TupleTypeAnnotation\":[\"types\"],\"TypeofTypeAnnotation\":[\"argument\"],\"TypeAlias\":[\"id\",\"typeParameters\",\"right\"],\"TypeAnnotation\":[\"typeAnnotation\"],\"TypeCastExpression\":[\"expression\",\"typeAnnotation\"],\"TypeParameter\":[\"bound\",\"default\"],\"TypeParameterDeclaration\":[\"params\"],\"TypeParameterInstantiation\":[\"params\"],\"UnionTypeAnnotation\":[\"types\"],\"VoidTypeAnnotation\":[],\"JSXAttribute\":[\"name\",\"value\"],\"JSXClosingElement\":[\"name\"],\"JSXElement\":[\"openingElement\",\"children\",\"closingElement\"],\"JSXEmptyExpression\":[],\"JSXExpressionContainer\":[\"expression\"],\"JSXSpreadChild\":[\"expression\"],\"JSXIdentifier\":[],\"JSXMemberExpression\":[\"object\",\"property\"],\"JSXNamespacedName\":[\"namespace\",\"name\"],\"JSXOpeningElement\":[\"name\",\"attributes\"],\"JSXSpreadAttribute\":[\"argument\"],\"JSXText\":[],\"JSXFragment\":[\"openingFragment\",\"children\",\"closingFragment\"],\"JSXOpeningFragment\":[],\"JSXClosingFragment\":[],\"Noop\":[],\"ParenthesizedExpression\":[\"expression\"],\"AwaitExpression\":[\"argument\"],\"BindExpression\":[\"object\",\"callee\"],\"ClassProperty\":[\"key\",\"value\",\"typeAnnotation\",\"decorators\"],\"Import\":[],\"Decorator\":[\"expression\"],\"DoExpression\":[\"body\"],\"ExportDefaultSpecifier\":[\"exported\"],\"ExportNamespaceSpecifier\":[\"exported\"],\"TSParameterProperty\":[\"parameter\"],\"TSDeclareFunction\":[\"id\",\"typeParameters\",\"params\",\"returnType\"],\"TSDeclareMethod\":[\"decorators\",\"key\",\"typeParameters\",\"params\",\"returnType\"],\"TSQualifiedName\":[\"left\",\"right\"],\"TSCallSignatureDeclaration\":[\"typeParameters\",\"parameters\",\"typeAnnotation\"],\"TSConstructSignatureDeclaration\":[\"typeParameters\",\"parameters\",\"typeAnnotation\"],\"TSPropertySignature\":[\"key\",\"typeAnnotation\",\"initializer\"],\"TSMethodSignature\":[\"key\",\"typeParameters\",\"parameters\",\"typeAnnotation\"],\"TSIndexSignature\":[\"parameters\",\"typeAnnotation\"],\"TSAnyKeyword\":[],\"TSNumberKeyword\":[],\"TSObjectKeyword\":[],\"TSBooleanKeyword\":[],\"TSStringKeyword\":[],\"TSSymbolKeyword\":[],\"TSVoidKeyword\":[],\"TSUndefinedKeyword\":[],\"TSNullKeyword\":[],\"TSNeverKeyword\":[],\"TSThisType\":[],\"TSFunctionType\":[\"typeParameters\",\"typeAnnotation\"],\"TSConstructorType\":[\"typeParameters\",\"typeAnnotation\"],\"TSTypeReference\":[\"typeName\",\"typeParameters\"],\"TSTypePredicate\":[\"parameterName\",\"typeAnnotation\"],\"TSTypeQuery\":[\"exprName\"],\"TSTypeLiteral\":[\"members\"],\"TSArrayType\":[\"elementType\"],\"TSTupleType\":[\"elementTypes\"],\"TSUnionType\":[\"types\"],\"TSIntersectionType\":[\"types\"],\"TSParenthesizedType\":[\"typeAnnotation\"],\"TSTypeOperator\":[\"typeAnnotation\"],\"TSIndexedAccessType\":[\"objectType\",\"indexType\"],\"TSMappedType\":[\"typeParameter\",\"typeAnnotation\"],\"TSLiteralType\":[\"literal\"],\"TSExpressionWithTypeArguments\":[\"expression\",\"typeParameters\"],\"TSInterfaceDeclaration\":[\"id\",\"typeParameters\",\"extends\",\"body\"],\"TSInterfaceBody\":[\"body\"],\"TSTypeAliasDeclaration\":[\"id\",\"typeParameters\",\"typeAnnotation\"],\"TSAsExpression\":[\"expression\",\"typeAnnotation\"],\"TSTypeAssertion\":[\"typeAnnotation\",\"expression\"],\"TSEnumDeclaration\":[\"id\",\"members\"],\"TSEnumMember\":[\"id\",\"initializer\"],\"TSModuleDeclaration\":[\"id\",\"body\"],\"TSModuleBlock\":[\"body\"],\"TSImportEqualsDeclaration\":[\"id\",\"moduleReference\"],\"TSExternalModuleReference\":[\"expression\"],\"TSNonNullExpression\":[\"expression\"],\"TSExportAssignment\":[\"expression\"],\"TSNamespaceExportDeclaration\":[\"id\"],\"TSTypeAnnotation\":[\"typeAnnotation\"],\"TSTypeParameterInstantiation\":[\"params\"],\"TSTypeParameterDeclaration\":[\"params\"],\"TSTypeParameter\":[\"constraint\",\"default\"]}",
     _powerAssertRecorder = function () { function PowerAssertRecorder() { this.captured = []; } PowerAssertRecorder.prototype._capt = function _capt(value, espath) { this.captured.push({ value: value, espath: espath }); return value; }; PowerAssertRecorder.prototype._expr = function _expr(value, source) { var capturedValues = this.captured; this.captured = []; return { powerAssertContext: { value: value, events: capturedValues }, source: source }; }; return PowerAssertRecorder; }(),
     _rec = new _powerAssertRecorder(),
     _rec2 = new _powerAssertRecorder(),
@@ -12,83 +12,77 @@ var _powerAssertVisitorKeys = '{"ArrayExpression":["elements"],"AssignmentExpres
     _rec8 = new _powerAssertRecorder(),
     _rec9 = new _powerAssertRecorder();
 
-assert(_rec._expr(_rec._capt(4 !== 4, 'arguments/0'), {
-  content: 'assert(4 !== 4)',
-  filepath: 'test/fixtures/BinaryExpression/fixture.js',
+function _instanceof(left, right) { if (right != null && typeof Symbol !== "undefined" && right[Symbol.hasInstance]) { return right[Symbol.hasInstance](left); } else { return left instanceof right; } }
+
+assert(_rec._expr(_rec._capt(4 !== 4, "arguments/0"), {
+  content: "assert(4 !== 4)",
+  filepath: "test/fixtures/BinaryExpression/fixture.js",
   line: 3,
-  ast: '{"type":"CallExpression","callee":{"type":"Identifier","name":"assert","range":[0,6]},"arguments":[{"type":"BinaryExpression","operator":"!==","left":{"type":"NumericLiteral","value":4,"range":[7,8]},"right":{"type":"NumericLiteral","value":4,"range":[13,14]},"range":[7,14]}],"range":[0,15]}',
-  tokens: '[{"type":{"label":"name"},"value":"assert","range":[0,6]},{"type":{"label":"("},"range":[6,7]},{"type":{"label":"num"},"value":4,"range":[7,8]},{"type":{"label":"==/!="},"value":"!==","range":[9,12]},{"type":{"label":"num"},"value":4,"range":[13,14]},{"type":{"label":")"},"range":[14,15]}]',
+  ast: "{\"type\":\"CallExpression\",\"callee\":{\"type\":\"Identifier\",\"name\":\"assert\",\"range\":[0,6]},\"arguments\":[{\"type\":\"BinaryExpression\",\"operator\":\"!==\",\"left\":{\"type\":\"NumericLiteral\",\"value\":4,\"range\":[7,8]},\"right\":{\"type\":\"NumericLiteral\",\"value\":4,\"range\":[13,14]},\"range\":[7,14]}],\"range\":[0,15]}",
+  tokens: "[{\"type\":{\"label\":\"name\"},\"value\":\"assert\",\"range\":[0,6]},{\"type\":{\"label\":\"(\"},\"range\":[6,7]},{\"type\":{\"label\":\"num\"},\"value\":4,\"range\":[7,8]},{\"type\":{\"label\":\"==/!=\"},\"value\":\"!==\",\"range\":[9,12]},{\"type\":{\"label\":\"num\"},\"value\":4,\"range\":[13,14]},{\"type\":{\"label\":\")\"},\"range\":[14,15]}]",
   visitorKeys: _powerAssertVisitorKeys
 }));
-
-assert(_rec2._expr(_rec2._capt(_rec2._capt(fuga, 'arguments/0/left') !== 4, 'arguments/0'), {
-  content: 'assert(fuga !== 4)',
-  filepath: 'test/fixtures/BinaryExpression/fixture.js',
+assert(_rec2._expr(_rec2._capt(_rec2._capt(fuga, "arguments/0/left") !== 4, "arguments/0"), {
+  content: "assert(fuga !== 4)",
+  filepath: "test/fixtures/BinaryExpression/fixture.js",
   line: 5,
-  ast: '{"type":"CallExpression","callee":{"type":"Identifier","name":"assert","range":[0,6]},"arguments":[{"type":"BinaryExpression","operator":"!==","left":{"type":"Identifier","name":"fuga","range":[7,11]},"right":{"type":"NumericLiteral","value":4,"range":[16,17]},"range":[7,17]}],"range":[0,18]}',
-  tokens: '[{"type":{"label":"name"},"value":"assert","range":[0,6]},{"type":{"label":"("},"range":[6,7]},{"type":{"label":"name"},"value":"fuga","range":[7,11]},{"type":{"label":"==/!="},"value":"!==","range":[12,15]},{"type":{"label":"num"},"value":4,"range":[16,17]},{"type":{"label":")"},"range":[17,18]}]',
+  ast: "{\"type\":\"CallExpression\",\"callee\":{\"type\":\"Identifier\",\"name\":\"assert\",\"range\":[0,6]},\"arguments\":[{\"type\":\"BinaryExpression\",\"operator\":\"!==\",\"left\":{\"type\":\"Identifier\",\"name\":\"fuga\",\"range\":[7,11]},\"right\":{\"type\":\"NumericLiteral\",\"value\":4,\"range\":[16,17]},\"range\":[7,17]}],\"range\":[0,18]}",
+  tokens: "[{\"type\":{\"label\":\"name\"},\"value\":\"assert\",\"range\":[0,6]},{\"type\":{\"label\":\"(\"},\"range\":[6,7]},{\"type\":{\"label\":\"name\"},\"value\":\"fuga\",\"range\":[7,11]},{\"type\":{\"label\":\"==/!=\"},\"value\":\"!==\",\"range\":[12,15]},{\"type\":{\"label\":\"num\"},\"value\":4,\"range\":[16,17]},{\"type\":{\"label\":\")\"},\"range\":[17,18]}]",
   visitorKeys: _powerAssertVisitorKeys
 }));
-
-assert(_rec3._expr(_rec3._capt(_rec3._capt(fuga, 'arguments/0/left') === _rec3._capt(piyo, 'arguments/0/right'), 'arguments/0'), {
-  content: 'assert(fuga === piyo)',
-  filepath: 'test/fixtures/BinaryExpression/fixture.js',
+assert(_rec3._expr(_rec3._capt(_rec3._capt(fuga, "arguments/0/left") === _rec3._capt(piyo, "arguments/0/right"), "arguments/0"), {
+  content: "assert(fuga === piyo)",
+  filepath: "test/fixtures/BinaryExpression/fixture.js",
   line: 7,
-  ast: '{"type":"CallExpression","callee":{"type":"Identifier","name":"assert","range":[0,6]},"arguments":[{"type":"BinaryExpression","operator":"===","left":{"type":"Identifier","name":"fuga","range":[7,11]},"right":{"type":"Identifier","name":"piyo","range":[16,20]},"range":[7,20]}],"range":[0,21]}',
-  tokens: '[{"type":{"label":"name"},"value":"assert","range":[0,6]},{"type":{"label":"("},"range":[6,7]},{"type":{"label":"name"},"value":"fuga","range":[7,11]},{"type":{"label":"==/!="},"value":"===","range":[12,15]},{"type":{"label":"name"},"value":"piyo","range":[16,20]},{"type":{"label":")"},"range":[20,21]}]',
+  ast: "{\"type\":\"CallExpression\",\"callee\":{\"type\":\"Identifier\",\"name\":\"assert\",\"range\":[0,6]},\"arguments\":[{\"type\":\"BinaryExpression\",\"operator\":\"===\",\"left\":{\"type\":\"Identifier\",\"name\":\"fuga\",\"range\":[7,11]},\"right\":{\"type\":\"Identifier\",\"name\":\"piyo\",\"range\":[16,20]},\"range\":[7,20]}],\"range\":[0,21]}",
+  tokens: "[{\"type\":{\"label\":\"name\"},\"value\":\"assert\",\"range\":[0,6]},{\"type\":{\"label\":\"(\"},\"range\":[6,7]},{\"type\":{\"label\":\"name\"},\"value\":\"fuga\",\"range\":[7,11]},{\"type\":{\"label\":\"==/!=\"},\"value\":\"===\",\"range\":[12,15]},{\"type\":{\"label\":\"name\"},\"value\":\"piyo\",\"range\":[16,20]},{\"type\":{\"label\":\")\"},\"range\":[20,21]}]",
   visitorKeys: _powerAssertVisitorKeys
 }));
-
-assert(_rec4._expr(_rec4._capt(_rec4._capt(fuga, 'arguments/0/left') === _rec4._capt(piyo, 'arguments/0/right'), 'arguments/0'), {
-  content: 'assert(fuga === piyo)',
-  filepath: 'test/fixtures/BinaryExpression/fixture.js',
+assert(_rec4._expr(_rec4._capt(_rec4._capt(fuga, "arguments/0/left") === _rec4._capt(piyo, "arguments/0/right"), "arguments/0"), {
+  content: "assert(fuga === piyo)",
+  filepath: "test/fixtures/BinaryExpression/fixture.js",
   line: 9,
-  ast: '{"type":"CallExpression","callee":{"type":"Identifier","name":"assert","range":[0,6]},"arguments":[{"type":"BinaryExpression","operator":"===","left":{"type":"Identifier","name":"fuga","range":[7,11]},"right":{"type":"Identifier","name":"piyo","range":[16,20]},"range":[7,20]}],"range":[0,21]}',
-  tokens: '[{"type":{"label":"name"},"value":"assert","range":[0,6]},{"type":{"label":"("},"range":[6,7]},{"type":{"label":"name"},"value":"fuga","range":[7,11]},{"type":{"label":"==/!="},"value":"===","range":[12,15]},{"type":{"label":"name"},"value":"piyo","range":[16,20]},{"type":{"label":")"},"range":[20,21]}]',
+  ast: "{\"type\":\"CallExpression\",\"callee\":{\"type\":\"Identifier\",\"name\":\"assert\",\"range\":[0,6]},\"arguments\":[{\"type\":\"BinaryExpression\",\"operator\":\"===\",\"left\":{\"type\":\"Identifier\",\"name\":\"fuga\",\"range\":[7,11]},\"right\":{\"type\":\"Identifier\",\"name\":\"piyo\",\"range\":[16,20]},\"range\":[7,20]}],\"range\":[0,21]}",
+  tokens: "[{\"type\":{\"label\":\"name\"},\"value\":\"assert\",\"range\":[0,6]},{\"type\":{\"label\":\"(\"},\"range\":[6,7]},{\"type\":{\"label\":\"name\"},\"value\":\"fuga\",\"range\":[7,11]},{\"type\":{\"label\":\"==/!=\"},\"value\":\"===\",\"range\":[12,15]},{\"type\":{\"label\":\"name\"},\"value\":\"piyo\",\"range\":[16,20]},{\"type\":{\"label\":\")\"},\"range\":[20,21]}]",
   visitorKeys: _powerAssertVisitorKeys
 }));
-
-assert(_rec5._expr(_rec5._capt(_rec5._capt(fuga, 'arguments/0/left') === _rec5._capt(piyo, 'arguments/0/right'), 'arguments/0'), {
-  content: 'assert(fuga === piyo)',
-  filepath: 'test/fixtures/BinaryExpression/fixture.js',
+assert(_rec5._expr(_rec5._capt(_rec5._capt(fuga, "arguments/0/left") === _rec5._capt(piyo, "arguments/0/right"), "arguments/0"), {
+  content: "assert(fuga === piyo)",
+  filepath: "test/fixtures/BinaryExpression/fixture.js",
   line: 13,
-  ast: '{"type":"CallExpression","callee":{"type":"Identifier","name":"assert","range":[0,6]},"arguments":[{"type":"BinaryExpression","operator":"===","left":{"type":"Identifier","name":"fuga","range":[7,11]},"right":{"type":"Identifier","name":"piyo","range":[16,20]},"range":[7,20]}],"range":[0,21]}',
-  tokens: '[{"type":{"label":"name"},"value":"assert","range":[0,6]},{"type":{"label":"("},"range":[6,7]},{"type":{"label":"name"},"value":"fuga","range":[7,11]},{"type":{"label":"==/!="},"value":"===","range":[12,15]},{"type":{"label":"name"},"value":"piyo","range":[16,20]},{"type":{"label":")"},"range":[20,21]}]',
+  ast: "{\"type\":\"CallExpression\",\"callee\":{\"type\":\"Identifier\",\"name\":\"assert\",\"range\":[0,6]},\"arguments\":[{\"type\":\"BinaryExpression\",\"operator\":\"===\",\"left\":{\"type\":\"Identifier\",\"name\":\"fuga\",\"range\":[7,11]},\"right\":{\"type\":\"Identifier\",\"name\":\"piyo\",\"range\":[16,20]},\"range\":[7,20]}],\"range\":[0,21]}",
+  tokens: "[{\"type\":{\"label\":\"name\"},\"value\":\"assert\",\"range\":[0,6]},{\"type\":{\"label\":\"(\"},\"range\":[6,7]},{\"type\":{\"label\":\"name\"},\"value\":\"fuga\",\"range\":[7,11]},{\"type\":{\"label\":\"==/!=\"},\"value\":\"===\",\"range\":[12,15]},{\"type\":{\"label\":\"name\"},\"value\":\"piyo\",\"range\":[16,20]},{\"type\":{\"label\":\")\"},\"range\":[20,21]}]",
   visitorKeys: _powerAssertVisitorKeys
 }));
-
-assert(_rec6._expr(_rec6._capt(_rec6._capt(fuga, 'arguments/0/left') !== _rec6._capt(piyo, 'arguments/0/right'), 'arguments/0'), {
-  content: 'assert(fuga !== piyo)',
-  filepath: 'test/fixtures/BinaryExpression/fixture.js',
+assert(_rec6._expr(_rec6._capt(_rec6._capt(fuga, "arguments/0/left") !== _rec6._capt(piyo, "arguments/0/right"), "arguments/0"), {
+  content: "assert(fuga !== piyo)",
+  filepath: "test/fixtures/BinaryExpression/fixture.js",
   line: 15,
-  ast: '{"type":"CallExpression","callee":{"type":"Identifier","name":"assert","range":[0,6]},"arguments":[{"type":"BinaryExpression","operator":"!==","left":{"type":"Identifier","name":"fuga","range":[7,11]},"right":{"type":"Identifier","name":"piyo","range":[16,20]},"range":[7,20]}],"range":[0,21]}',
-  tokens: '[{"type":{"label":"name"},"value":"assert","range":[0,6]},{"type":{"label":"("},"range":[6,7]},{"type":{"label":"name"},"value":"fuga","range":[7,11]},{"type":{"label":"==/!="},"value":"!==","range":[12,15]},{"type":{"label":"name"},"value":"piyo","range":[16,20]},{"type":{"label":")"},"range":[20,21]}]',
+  ast: "{\"type\":\"CallExpression\",\"callee\":{\"type\":\"Identifier\",\"name\":\"assert\",\"range\":[0,6]},\"arguments\":[{\"type\":\"BinaryExpression\",\"operator\":\"!==\",\"left\":{\"type\":\"Identifier\",\"name\":\"fuga\",\"range\":[7,11]},\"right\":{\"type\":\"Identifier\",\"name\":\"piyo\",\"range\":[16,20]},\"range\":[7,20]}],\"range\":[0,21]}",
+  tokens: "[{\"type\":{\"label\":\"name\"},\"value\":\"assert\",\"range\":[0,6]},{\"type\":{\"label\":\"(\"},\"range\":[6,7]},{\"type\":{\"label\":\"name\"},\"value\":\"fuga\",\"range\":[7,11]},{\"type\":{\"label\":\"==/!=\"},\"value\":\"!==\",\"range\":[12,15]},{\"type\":{\"label\":\"name\"},\"value\":\"piyo\",\"range\":[16,20]},{\"type\":{\"label\":\")\"},\"range\":[20,21]}]",
   visitorKeys: _powerAssertVisitorKeys
 }));
-
-assert.ok(_rec7._expr(_rec7._capt(_rec7._capt(hoge, 'arguments/0/left') === _rec7._capt(fuga, 'arguments/0/right'), 'arguments/0'), {
-  content: 'assert.ok(hoge === fuga, \'comment\')',
-  filepath: 'test/fixtures/BinaryExpression/fixture.js',
+assert.ok(_rec7._expr(_rec7._capt(_rec7._capt(hoge, "arguments/0/left") === _rec7._capt(fuga, "arguments/0/right"), "arguments/0"), {
+  content: "assert.ok(hoge === fuga, 'comment')",
+  filepath: "test/fixtures/BinaryExpression/fixture.js",
   line: 17,
-  ast: '{"type":"CallExpression","callee":{"type":"MemberExpression","object":{"type":"Identifier","name":"assert","range":[0,6]},"property":{"type":"Identifier","name":"ok","range":[7,9]},"computed":false,"range":[0,9]},"arguments":[{"type":"BinaryExpression","operator":"===","left":{"type":"Identifier","name":"hoge","range":[10,14]},"right":{"type":"Identifier","name":"fuga","range":[19,23]},"range":[10,23]},{"type":"StringLiteral","value":"comment","range":[25,34]}],"range":[0,35]}',
-  tokens: '[{"type":{"label":"name"},"value":"assert","range":[0,6]},{"type":{"label":"."},"range":[6,7]},{"type":{"label":"name"},"value":"ok","range":[7,9]},{"type":{"label":"("},"range":[9,10]},{"type":{"label":"name"},"value":"hoge","range":[10,14]},{"type":{"label":"==/!="},"value":"===","range":[15,18]},{"type":{"label":"name"},"value":"fuga","range":[19,23]},{"type":{"label":","},"range":[23,24]},{"type":{"label":"string"},"value":"comment","range":[25,34]},{"type":{"label":")"},"range":[34,35]}]',
+  ast: "{\"type\":\"CallExpression\",\"callee\":{\"type\":\"MemberExpression\",\"object\":{\"type\":\"Identifier\",\"name\":\"assert\",\"range\":[0,6]},\"property\":{\"type\":\"Identifier\",\"name\":\"ok\",\"range\":[7,9]},\"computed\":false,\"range\":[0,9]},\"arguments\":[{\"type\":\"BinaryExpression\",\"operator\":\"===\",\"left\":{\"type\":\"Identifier\",\"name\":\"hoge\",\"range\":[10,14]},\"right\":{\"type\":\"Identifier\",\"name\":\"fuga\",\"range\":[19,23]},\"range\":[10,23]},{\"type\":\"StringLiteral\",\"value\":\"comment\",\"range\":[25,34]}],\"range\":[0,35]}",
+  tokens: "[{\"type\":{\"label\":\"name\"},\"value\":\"assert\",\"range\":[0,6]},{\"type\":{\"label\":\".\"},\"range\":[6,7]},{\"type\":{\"label\":\"name\"},\"value\":\"ok\",\"range\":[7,9]},{\"type\":{\"label\":\"(\"},\"range\":[9,10]},{\"type\":{\"label\":\"name\"},\"value\":\"hoge\",\"range\":[10,14]},{\"type\":{\"label\":\"==/!=\"},\"value\":\"===\",\"range\":[15,18]},{\"type\":{\"label\":\"name\"},\"value\":\"fuga\",\"range\":[19,23]},{\"type\":{\"label\":\",\"},\"range\":[23,24]},{\"type\":{\"label\":\"string\"},\"value\":\"comment\",\"range\":[25,34]},{\"type\":{\"label\":\")\"},\"range\":[34,35]}]",
   visitorKeys: _powerAssertVisitorKeys
 }), 'comment');
-
-assert(_rec8._expr(_rec8._capt(_rec8._capt(_rec8._capt(ary1, 'arguments/0/left/object').length, 'arguments/0/left') === _rec8._capt(_rec8._capt(ary2, 'arguments/0/right/object').length, 'arguments/0/right'), 'arguments/0'), {
-  content: 'assert(ary1.length === ary2.length)',
-  filepath: 'test/fixtures/BinaryExpression/fixture.js',
+assert(_rec8._expr(_rec8._capt(_rec8._capt(_rec8._capt(ary1, "arguments/0/left/object").length, "arguments/0/left") === _rec8._capt(_rec8._capt(ary2, "arguments/0/right/object").length, "arguments/0/right"), "arguments/0"), {
+  content: "assert(ary1.length === ary2.length)",
+  filepath: "test/fixtures/BinaryExpression/fixture.js",
   line: 19,
-  ast: '{"type":"CallExpression","callee":{"type":"Identifier","name":"assert","range":[0,6]},"arguments":[{"type":"BinaryExpression","operator":"===","left":{"type":"MemberExpression","object":{"type":"Identifier","name":"ary1","range":[7,11]},"property":{"type":"Identifier","name":"length","range":[12,18]},"computed":false,"range":[7,18]},"right":{"type":"MemberExpression","object":{"type":"Identifier","name":"ary2","range":[23,27]},"property":{"type":"Identifier","name":"length","range":[28,34]},"computed":false,"range":[23,34]},"range":[7,34]}],"range":[0,35]}',
-  tokens: '[{"type":{"label":"name"},"value":"assert","range":[0,6]},{"type":{"label":"("},"range":[6,7]},{"type":{"label":"name"},"value":"ary1","range":[7,11]},{"type":{"label":"."},"range":[11,12]},{"type":{"label":"name"},"value":"length","range":[12,18]},{"type":{"label":"==/!="},"value":"===","range":[19,22]},{"type":{"label":"name"},"value":"ary2","range":[23,27]},{"type":{"label":"."},"range":[27,28]},{"type":{"label":"name"},"value":"length","range":[28,34]},{"type":{"label":")"},"range":[34,35]}]',
+  ast: "{\"type\":\"CallExpression\",\"callee\":{\"type\":\"Identifier\",\"name\":\"assert\",\"range\":[0,6]},\"arguments\":[{\"type\":\"BinaryExpression\",\"operator\":\"===\",\"left\":{\"type\":\"MemberExpression\",\"object\":{\"type\":\"Identifier\",\"name\":\"ary1\",\"range\":[7,11]},\"property\":{\"type\":\"Identifier\",\"name\":\"length\",\"range\":[12,18]},\"computed\":false,\"range\":[7,18]},\"right\":{\"type\":\"MemberExpression\",\"object\":{\"type\":\"Identifier\",\"name\":\"ary2\",\"range\":[23,27]},\"property\":{\"type\":\"Identifier\",\"name\":\"length\",\"range\":[28,34]},\"computed\":false,\"range\":[23,34]},\"range\":[7,34]}],\"range\":[0,35]}",
+  tokens: "[{\"type\":{\"label\":\"name\"},\"value\":\"assert\",\"range\":[0,6]},{\"type\":{\"label\":\"(\"},\"range\":[6,7]},{\"type\":{\"label\":\"name\"},\"value\":\"ary1\",\"range\":[7,11]},{\"type\":{\"label\":\".\"},\"range\":[11,12]},{\"type\":{\"label\":\"name\"},\"value\":\"length\",\"range\":[12,18]},{\"type\":{\"label\":\"==/!=\"},\"value\":\"===\",\"range\":[19,22]},{\"type\":{\"label\":\"name\"},\"value\":\"ary2\",\"range\":[23,27]},{\"type\":{\"label\":\".\"},\"range\":[27,28]},{\"type\":{\"label\":\"name\"},\"value\":\"length\",\"range\":[28,34]},{\"type\":{\"label\":\")\"},\"range\":[34,35]}]",
   visitorKeys: _powerAssertVisitorKeys
 }));
-
-assert(_rec9._expr(_rec9._capt(_rec9._capt(foo, 'arguments/0/left') instanceof _rec9._capt(Foo, 'arguments/0/right'), 'arguments/0'), {
-  content: 'assert(foo instanceof Foo)',
-  filepath: 'test/fixtures/BinaryExpression/fixture.js',
+assert(_rec9._expr(_rec9._capt(_instanceof(_rec9._capt(foo, "arguments/0/left"), _rec9._capt(Foo, "arguments/0/right")), "arguments/0"), {
+  content: "assert(foo instanceof Foo)",
+  filepath: "test/fixtures/BinaryExpression/fixture.js",
   line: 21,
-  ast: '{"type":"CallExpression","callee":{"type":"Identifier","name":"assert","range":[0,6]},"arguments":[{"type":"BinaryExpression","operator":"instanceof","left":{"type":"Identifier","name":"foo","range":[7,10]},"right":{"type":"Identifier","name":"Foo","range":[22,25]},"range":[7,25]}],"range":[0,26]}',
-  tokens: '[{"type":{"label":"name"},"value":"assert","range":[0,6]},{"type":{"label":"("},"range":[6,7]},{"type":{"label":"name"},"value":"foo","range":[7,10]},{"type":{"label":"instanceof"},"value":"instanceof","range":[11,21]},{"type":{"label":"name"},"value":"Foo","range":[22,25]},{"type":{"label":")"},"range":[25,26]}]',
+  ast: "{\"type\":\"CallExpression\",\"callee\":{\"type\":\"Identifier\",\"name\":\"assert\",\"range\":[0,6]},\"arguments\":[{\"type\":\"BinaryExpression\",\"operator\":\"instanceof\",\"left\":{\"type\":\"Identifier\",\"name\":\"foo\",\"range\":[7,10]},\"right\":{\"type\":\"Identifier\",\"name\":\"Foo\",\"range\":[22,25]},\"range\":[7,25]}],\"range\":[0,26]}",
+  tokens: "[{\"type\":{\"label\":\"name\"},\"value\":\"assert\",\"range\":[0,6]},{\"type\":{\"label\":\"(\"},\"range\":[6,7]},{\"type\":{\"label\":\"name\"},\"value\":\"foo\",\"range\":[7,10]},{\"type\":{\"label\":\"instanceof\"},\"value\":\"instanceof\",\"range\":[11,21]},{\"type\":{\"label\":\"name\"},\"value\":\"Foo\",\"range\":[22,25]},{\"type\":{\"label\":\")\"},\"range\":[25,26]}]",
   visitorKeys: _powerAssertVisitorKeys
 }));
diff --git a/test/fixtures/BinaryExpression/expected.js b/test/fixtures/BinaryExpression/expected.js
index cc5ea55..407e157 100644
--- a/test/fixtures/BinaryExpression/expected.js
+++ b/test/fixtures/BinaryExpression/expected.js
@@ -11,56 +11,48 @@ var _powerAssertRecorder = function () { function PowerAssertRecorder() { this.c
     _rec8 = new _powerAssertRecorder(),
     _rec9 = new _powerAssertRecorder();
 
-assert(_rec._expr(_rec._capt(4 !== 4, 'arguments/0'), {
-  content: 'assert(4 !== 4)',
-  filepath: 'test/fixtures/BinaryExpression/fixture.js',
+assert(_rec._expr(_rec._capt(4 !== 4, "arguments/0"), {
+  content: "assert(4 !== 4)",
+  filepath: "test/fixtures/BinaryExpression/fixture.js",
   line: 3
 }));
-
-assert(_rec2._expr(_rec2._capt(_rec2._capt(fuga, 'arguments/0/left') !== 4, 'arguments/0'), {
-  content: 'assert(fuga !== 4)',
-  filepath: 'test/fixtures/BinaryExpression/fixture.js',
+assert(_rec2._expr(_rec2._capt(_rec2._capt(fuga, "arguments/0/left") !== 4, "arguments/0"), {
+  content: "assert(fuga !== 4)",
+  filepath: "test/fixtures/BinaryExpression/fixture.js",
   line: 5
 }));
-
-assert(_rec3._expr(_rec3._capt(_rec3._capt(fuga, 'arguments/0/left') === _rec3._capt(piyo, 'arguments/0/right'), 'arguments/0'), {
-  content: 'assert(fuga === piyo)',
-  filepath: 'test/fixtures/BinaryExpression/fixture.js',
+assert(_rec3._expr(_rec3._capt(_rec3._capt(fuga, "arguments/0/left") === _rec3._capt(piyo, "arguments/0/right"), "arguments/0"), {
+  content: "assert(fuga === piyo)",
+  filepath: "test/fixtures/BinaryExpression/fixture.js",
   line: 7
 }));
-
-assert(_rec4._expr(_rec4._capt(_rec4._capt(fuga, 'arguments/0/left') === _rec4._capt(piyo, 'arguments/0/right'), 'arguments/0'), {
-  content: 'assert(fuga === piyo)',
-  filepath: 'test/fixtures/BinaryExpression/fixture.js',
+assert(_rec4._expr(_rec4._capt(_rec4._capt(fuga, "arguments/0/left") === _rec4._capt(piyo, "arguments/0/right"), "arguments/0"), {
+  content: "assert(fuga === piyo)",
+  filepath: "test/fixtures/BinaryExpression/fixture.js",
   line: 9
 }));
-
-assert(_rec5._expr(_rec5._capt(_rec5._capt(fuga, 'arguments/0/left') === _rec5._capt(piyo, 'arguments/0/right'), 'arguments/0'), {
-  content: 'assert(fuga === piyo)',
-  filepath: 'test/fixtures/BinaryExpression/fixture.js',
+assert(_rec5._expr(_rec5._capt(_rec5._capt(fuga, "arguments/0/left") === _rec5._capt(piyo, "arguments/0/right"), "arguments/0"), {
+  content: "assert(fuga === piyo)",
+  filepath: "test/fixtures/BinaryExpression/fixture.js",
   line: 13
 }));
-
-assert(_rec6._expr(_rec6._capt(_rec6._capt(fuga, 'arguments/0/left') !== _rec6._capt(piyo, 'arguments/0/right'), 'arguments/0'), {
-  content: 'assert(fuga !== piyo)',
-  filepath: 'test/fixtures/BinaryExpression/fixture.js',
+assert(_rec6._expr(_rec6._capt(_rec6._capt(fuga, "arguments/0/left") !== _rec6._capt(piyo, "arguments/0/right"), "arguments/0"), {
+  content: "assert(fuga !== piyo)",
+  filepath: "test/fixtures/BinaryExpression/fixture.js",
   line: 15
 }));
-
-assert.ok(_rec7._expr(_rec7._capt(_rec7._capt(hoge, 'arguments/0/left') === _rec7._capt(fuga, 'arguments/0/right'), 'arguments/0'), {
-  content: 'assert.ok(hoge === fuga, \'comment\')',
-  filepath: 'test/fixtures/BinaryExpression/fixture.js',
+assert.ok(_rec7._expr(_rec7._capt(_rec7._capt(hoge, "arguments/0/left") === _rec7._capt(fuga, "arguments/0/right"), "arguments/0"), {
+  content: "assert.ok(hoge === fuga, 'comment')",
+  filepath: "test/fixtures/BinaryExpression/fixture.js",
   line: 17
 }), 'comment');
-
-assert(_rec8._expr(_rec8._capt(_rec8._capt(_rec8._capt(ary1, 'arguments/0/left/object').length, 'arguments/0/left') === _rec8._capt(_rec8._capt(ary2, 'arguments/0/right/object').length, 'arguments/0/right'), 'arguments/0'), {
-  content: 'assert(ary1.length === ary2.length)',
-  filepath: 'test/fixtures/BinaryExpression/fixture.js',
+assert(_rec8._expr(_rec8._capt(_rec8._capt(_rec8._capt(ary1, "arguments/0/left/object").length, "arguments/0/left") === _rec8._capt(_rec8._capt(ary2, "arguments/0/right/object").length, "arguments/0/right"), "arguments/0"), {
+  content: "assert(ary1.length === ary2.length)",
+  filepath: "test/fixtures/BinaryExpression/fixture.js",
   line: 19
 }));
-
-assert(_rec9._expr(_rec9._capt(_rec9._capt(foo, 'arguments/0/left') instanceof _rec9._capt(Foo, 'arguments/0/right'), 'arguments/0'), {
-  content: 'assert(foo instanceof Foo)',
-  filepath: 'test/fixtures/BinaryExpression/fixture.js',
+assert(_rec9._expr(_rec9._capt(_rec9._capt(foo, "arguments/0/left") instanceof _rec9._capt(Foo, "arguments/0/right"), "arguments/0"), {
+  content: "assert(foo instanceof Foo)",
+  filepath: "test/fixtures/BinaryExpression/fixture.js",
   line: 21
 }));
diff --git a/test/fixtures/CallExpression/expected-presets-es2015.js b/test/fixtures/CallExpression/expected-presets-es2015.js
index a322d3e..4188dc0 100644
--- a/test/fixtures/CallExpression/expected-presets-es2015.js
+++ b/test/fixtures/CallExpression/expected-presets-es2015.js
@@ -1,6 +1,6 @@
 'use strict';
 
-var _powerAssertVisitorKeys = '{"ArrayExpression":["elements"],"AssignmentExpression":["left","right"],"BinaryExpression":["left","right"],"Directive":["value"],"DirectiveLiteral":[],"BlockStatement":["directives","body"],"BreakStatement":["label"],"CallExpression":["callee","arguments"],"CatchClause":["param","body"],"ConditionalExpression":["test","consequent","alternate"],"ContinueStatement":["label"],"DebuggerStatement":[],"DoWhileStatement":["test","body"],"EmptyStatement":[],"ExpressionStatement":["expression"],"File":["program"],"ForInStatement":["left","right","body"],"ForStatement":["init","test","update","body"],"FunctionDeclaration":["id","params","body","returnType","typeParameters"],"FunctionExpression":["id","params","body","returnType","typeParameters"],"Identifier":["typeAnnotation"],"IfStatement":["test","consequent","alternate"],"LabeledStatement":["label","body"],"StringLiteral":[],"NumericLiteral":[],"NullLiteral":[],"BooleanLiteral":[],"RegExpLiteral":[],"LogicalExpression":["left","right"],"MemberExpression":["object","property"],"NewExpression":["callee","arguments"],"Program":["directives","body"],"ObjectExpression":["properties"],"ObjectMethod":["key","params","body","decorators","returnType","typeParameters"],"ObjectProperty":["key","value","decorators"],"RestElement":["argument","typeAnnotation"],"ReturnStatement":["argument"],"SequenceExpression":["expressions"],"SwitchCase":["test","consequent"],"SwitchStatement":["discriminant","cases"],"ThisExpression":[],"ThrowStatement":["argument"],"TryStatement":["block","handler","finalizer"],"UnaryExpression":["argument"],"UpdateExpression":["argument"],"VariableDeclaration":["declarations"],"VariableDeclarator":["id","init"],"WhileStatement":["test","body"],"WithStatement":["object","body"],"AssignmentPattern":["left","right"],"ArrayPattern":["elements","typeAnnotation"],"ArrowFunctionExpression":["params","body","returnType","typeParameters"],"ClassBody":["body"],"ClassDeclaration":["id","body","superClass","mixins","typeParameters","superTypeParameters","implements","decorators"],"ClassExpression":["id","body","superClass","mixins","typeParameters","superTypeParameters","implements","decorators"],"ExportAllDeclaration":["source"],"ExportDefaultDeclaration":["declaration"],"ExportNamedDeclaration":["declaration","specifiers","source"],"ExportSpecifier":["local","exported"],"ForOfStatement":["left","right","body"],"ImportDeclaration":["specifiers","source"],"ImportDefaultSpecifier":["local"],"ImportNamespaceSpecifier":["local"],"ImportSpecifier":["local","imported"],"MetaProperty":["meta","property"],"ClassMethod":["key","params","body","decorators","returnType","typeParameters"],"ObjectPattern":["properties","typeAnnotation"],"SpreadElement":["argument"],"Super":[],"TaggedTemplateExpression":["tag","quasi"],"TemplateElement":[],"TemplateLiteral":["quasis","expressions"],"YieldExpression":["argument"],"AnyTypeAnnotation":[],"ArrayTypeAnnotation":["elementType"],"BooleanTypeAnnotation":[],"BooleanLiteralTypeAnnotation":[],"NullLiteralTypeAnnotation":[],"ClassImplements":["id","typeParameters"],"ClassProperty":["key","value","typeAnnotation","decorators"],"DeclareClass":["id","typeParameters","extends","body"],"DeclareFunction":["id"],"DeclareInterface":["id","typeParameters","extends","body"],"DeclareModule":["id","body"],"DeclareModuleExports":["typeAnnotation"],"DeclareTypeAlias":["id","typeParameters","right"],"DeclareOpaqueType":["id","typeParameters","supertype"],"DeclareVariable":["id"],"DeclareExportDeclaration":["declaration","specifiers","source"],"ExistentialTypeParam":[],"FunctionTypeAnnotation":["typeParameters","params","rest","returnType"],"FunctionTypeParam":["name","typeAnnotation"],"GenericTypeAnnotation":["id","typeParameters"],"InterfaceExtends":["id","typeParameters"],"InterfaceDeclaration":["id","typeParameters","extends","body"],"IntersectionTypeAnnotation":["types"],"MixedTypeAnnotation":[],"EmptyTypeAnnotation":[],"NullableTypeAnnotation":["typeAnnotation"],"NumericLiteralTypeAnnotation":[],"NumberTypeAnnotation":[],"StringLiteralTypeAnnotation":[],"StringTypeAnnotation":[],"ThisTypeAnnotation":[],"TupleTypeAnnotation":["types"],"TypeofTypeAnnotation":["argument"],"TypeAlias":["id","typeParameters","right"],"OpaqueType":["id","typeParameters","impltype","supertype"],"TypeAnnotation":["typeAnnotation"],"TypeCastExpression":["expression","typeAnnotation"],"TypeParameter":["bound"],"TypeParameterDeclaration":["params"],"TypeParameterInstantiation":["params"],"ObjectTypeAnnotation":["properties","indexers","callProperties"],"ObjectTypeCallProperty":["value"],"ObjectTypeIndexer":["id","key","value"],"ObjectTypeProperty":["key","value"],"ObjectTypeSpreadProperty":["argument"],"QualifiedTypeIdentifier":["id","qualification"],"UnionTypeAnnotation":["types"],"VoidTypeAnnotation":[],"JSXAttribute":["name","value"],"JSXClosingElement":["name"],"JSXElement":["openingElement","children","closingElement"],"JSXEmptyExpression":[],"JSXExpressionContainer":["expression"],"JSXSpreadChild":["expression"],"JSXIdentifier":[],"JSXMemberExpression":["object","property"],"JSXNamespacedName":["namespace","name"],"JSXOpeningElement":["name","attributes"],"JSXSpreadAttribute":["argument"],"JSXText":[],"Noop":[],"ParenthesizedExpression":["expression"],"AwaitExpression":["argument"],"ForAwaitStatement":["left","right","body"],"BindExpression":["object","callee"],"Import":[],"Decorator":["expression"],"DoExpression":["body"],"ExportDefaultSpecifier":["exported"],"ExportNamespaceSpecifier":["exported"],"RestProperty":["argument"],"SpreadProperty":["argument"]}',
+var _powerAssertVisitorKeys = "{\"ArrayExpression\":[\"elements\"],\"AssignmentExpression\":[\"left\",\"right\"],\"BinaryExpression\":[\"left\",\"right\"],\"Directive\":[\"value\"],\"DirectiveLiteral\":[],\"BlockStatement\":[\"directives\",\"body\"],\"BreakStatement\":[\"label\"],\"CallExpression\":[\"callee\",\"arguments\",\"typeParameters\"],\"CatchClause\":[\"param\",\"body\"],\"ConditionalExpression\":[\"test\",\"consequent\",\"alternate\"],\"ContinueStatement\":[\"label\"],\"DebuggerStatement\":[],\"DoWhileStatement\":[\"test\",\"body\"],\"EmptyStatement\":[],\"ExpressionStatement\":[\"expression\"],\"File\":[\"program\"],\"ForInStatement\":[\"left\",\"right\",\"body\"],\"ForStatement\":[\"init\",\"test\",\"update\",\"body\"],\"FunctionDeclaration\":[\"id\",\"params\",\"body\",\"returnType\",\"typeParameters\"],\"FunctionExpression\":[\"id\",\"params\",\"body\",\"returnType\",\"typeParameters\"],\"Identifier\":[\"typeAnnotation\"],\"IfStatement\":[\"test\",\"consequent\",\"alternate\"],\"LabeledStatement\":[\"label\",\"body\"],\"StringLiteral\":[],\"NumericLiteral\":[],\"NullLiteral\":[],\"BooleanLiteral\":[],\"RegExpLiteral\":[],\"LogicalExpression\":[\"left\",\"right\"],\"MemberExpression\":[\"object\",\"property\"],\"NewExpression\":[\"callee\",\"arguments\",\"typeParameters\"],\"Program\":[\"directives\",\"body\"],\"ObjectExpression\":[\"properties\"],\"ObjectMethod\":[\"key\",\"params\",\"body\",\"decorators\",\"returnType\",\"typeParameters\"],\"ObjectProperty\":[\"key\",\"value\",\"decorators\"],\"RestElement\":[\"argument\",\"typeAnnotation\"],\"ReturnStatement\":[\"argument\"],\"SequenceExpression\":[\"expressions\"],\"SwitchCase\":[\"test\",\"consequent\"],\"SwitchStatement\":[\"discriminant\",\"cases\"],\"ThisExpression\":[],\"ThrowStatement\":[\"argument\"],\"TryStatement\":[\"block\",\"handler\",\"finalizer\"],\"UnaryExpression\":[\"argument\"],\"UpdateExpression\":[\"argument\"],\"VariableDeclaration\":[\"declarations\"],\"VariableDeclarator\":[\"id\",\"init\"],\"WhileStatement\":[\"test\",\"body\"],\"WithStatement\":[\"object\",\"body\"],\"AssignmentPattern\":[\"left\",\"right\"],\"ArrayPattern\":[\"elements\",\"typeAnnotation\"],\"ArrowFunctionExpression\":[\"params\",\"body\",\"returnType\",\"typeParameters\"],\"ClassBody\":[\"body\"],\"ClassDeclaration\":[\"id\",\"body\",\"superClass\",\"mixins\",\"typeParameters\",\"superTypeParameters\",\"implements\",\"decorators\"],\"ClassExpression\":[\"id\",\"body\",\"superClass\",\"mixins\",\"typeParameters\",\"superTypeParameters\",\"implements\",\"decorators\"],\"ExportAllDeclaration\":[\"source\"],\"ExportDefaultDeclaration\":[\"declaration\"],\"ExportNamedDeclaration\":[\"declaration\",\"specifiers\",\"source\"],\"ExportSpecifier\":[\"local\",\"exported\"],\"ForOfStatement\":[\"left\",\"right\",\"body\"],\"ImportDeclaration\":[\"specifiers\",\"source\"],\"ImportDefaultSpecifier\":[\"local\"],\"ImportNamespaceSpecifier\":[\"local\"],\"ImportSpecifier\":[\"local\",\"imported\"],\"MetaProperty\":[\"meta\",\"property\"],\"ClassMethod\":[\"key\",\"params\",\"body\",\"decorators\",\"returnType\",\"typeParameters\"],\"ObjectPattern\":[\"properties\",\"typeAnnotation\"],\"SpreadElement\":[\"argument\"],\"Super\":[],\"TaggedTemplateExpression\":[\"tag\",\"quasi\"],\"TemplateElement\":[],\"TemplateLiteral\":[\"quasis\",\"expressions\"],\"YieldExpression\":[\"argument\"],\"AnyTypeAnnotation\":[],\"ArrayTypeAnnotation\":[\"elementType\"],\"BooleanTypeAnnotation\":[],\"BooleanLiteralTypeAnnotation\":[],\"NullLiteralTypeAnnotation\":[],\"ClassImplements\":[\"id\",\"typeParameters\"],\"DeclareClass\":[\"id\",\"typeParameters\",\"extends\",\"body\"],\"DeclareFunction\":[\"id\"],\"DeclareInterface\":[\"id\",\"typeParameters\",\"extends\",\"body\"],\"DeclareModule\":[\"id\",\"body\"],\"DeclareModuleExports\":[\"typeAnnotation\"],\"DeclareTypeAlias\":[\"id\",\"typeParameters\",\"right\"],\"DeclareOpaqueType\":[\"id\",\"typeParameters\",\"supertype\"],\"DeclareVariable\":[\"id\"],\"DeclareExportDeclaration\":[\"declaration\",\"specifiers\",\"source\"],\"DeclareExportAllDeclaration\":[\"source\"],\"DeclaredPredicate\":[\"value\"],\"ExistsTypeAnnotation\":[],\"FunctionTypeAnnotation\":[\"typeParameters\",\"params\",\"rest\",\"returnType\"],\"FunctionTypeParam\":[\"name\",\"typeAnnotation\"],\"GenericTypeAnnotation\":[\"id\",\"typeParameters\"],\"InferredPredicate\":[],\"InterfaceExtends\":[\"id\",\"typeParameters\"],\"InterfaceDeclaration\":[\"id\",\"typeParameters\",\"extends\",\"body\"],\"IntersectionTypeAnnotation\":[\"types\"],\"MixedTypeAnnotation\":[],\"EmptyTypeAnnotation\":[],\"NullableTypeAnnotation\":[\"typeAnnotation\"],\"NumberLiteralTypeAnnotation\":[],\"NumberTypeAnnotation\":[],\"ObjectTypeAnnotation\":[\"properties\",\"indexers\",\"callProperties\"],\"ObjectTypeCallProperty\":[\"value\"],\"ObjectTypeIndexer\":[\"id\",\"key\",\"value\"],\"ObjectTypeProperty\":[\"key\",\"value\"],\"ObjectTypeSpreadProperty\":[\"argument\"],\"OpaqueType\":[\"id\",\"typeParameters\",\"supertype\",\"impltype\"],\"QualifiedTypeIdentifier\":[\"id\",\"qualification\"],\"StringLiteralTypeAnnotation\":[],\"StringTypeAnnotation\":[],\"ThisTypeAnnotation\":[],\"TupleTypeAnnotation\":[\"types\"],\"TypeofTypeAnnotation\":[\"argument\"],\"TypeAlias\":[\"id\",\"typeParameters\",\"right\"],\"TypeAnnotation\":[\"typeAnnotation\"],\"TypeCastExpression\":[\"expression\",\"typeAnnotation\"],\"TypeParameter\":[\"bound\",\"default\"],\"TypeParameterDeclaration\":[\"params\"],\"TypeParameterInstantiation\":[\"params\"],\"UnionTypeAnnotation\":[\"types\"],\"VoidTypeAnnotation\":[],\"JSXAttribute\":[\"name\",\"value\"],\"JSXClosingElement\":[\"name\"],\"JSXElement\":[\"openingElement\",\"children\",\"closingElement\"],\"JSXEmptyExpression\":[],\"JSXExpressionContainer\":[\"expression\"],\"JSXSpreadChild\":[\"expression\"],\"JSXIdentifier\":[],\"JSXMemberExpression\":[\"object\",\"property\"],\"JSXNamespacedName\":[\"namespace\",\"name\"],\"JSXOpeningElement\":[\"name\",\"attributes\"],\"JSXSpreadAttribute\":[\"argument\"],\"JSXText\":[],\"JSXFragment\":[\"openingFragment\",\"children\",\"closingFragment\"],\"JSXOpeningFragment\":[],\"JSXClosingFragment\":[],\"Noop\":[],\"ParenthesizedExpression\":[\"expression\"],\"AwaitExpression\":[\"argument\"],\"BindExpression\":[\"object\",\"callee\"],\"ClassProperty\":[\"key\",\"value\",\"typeAnnotation\",\"decorators\"],\"Import\":[],\"Decorator\":[\"expression\"],\"DoExpression\":[\"body\"],\"ExportDefaultSpecifier\":[\"exported\"],\"ExportNamespaceSpecifier\":[\"exported\"],\"TSParameterProperty\":[\"parameter\"],\"TSDeclareFunction\":[\"id\",\"typeParameters\",\"params\",\"returnType\"],\"TSDeclareMethod\":[\"decorators\",\"key\",\"typeParameters\",\"params\",\"returnType\"],\"TSQualifiedName\":[\"left\",\"right\"],\"TSCallSignatureDeclaration\":[\"typeParameters\",\"parameters\",\"typeAnnotation\"],\"TSConstructSignatureDeclaration\":[\"typeParameters\",\"parameters\",\"typeAnnotation\"],\"TSPropertySignature\":[\"key\",\"typeAnnotation\",\"initializer\"],\"TSMethodSignature\":[\"key\",\"typeParameters\",\"parameters\",\"typeAnnotation\"],\"TSIndexSignature\":[\"parameters\",\"typeAnnotation\"],\"TSAnyKeyword\":[],\"TSNumberKeyword\":[],\"TSObjectKeyword\":[],\"TSBooleanKeyword\":[],\"TSStringKeyword\":[],\"TSSymbolKeyword\":[],\"TSVoidKeyword\":[],\"TSUndefinedKeyword\":[],\"TSNullKeyword\":[],\"TSNeverKeyword\":[],\"TSThisType\":[],\"TSFunctionType\":[\"typeParameters\",\"typeAnnotation\"],\"TSConstructorType\":[\"typeParameters\",\"typeAnnotation\"],\"TSTypeReference\":[\"typeName\",\"typeParameters\"],\"TSTypePredicate\":[\"parameterName\",\"typeAnnotation\"],\"TSTypeQuery\":[\"exprName\"],\"TSTypeLiteral\":[\"members\"],\"TSArrayType\":[\"elementType\"],\"TSTupleType\":[\"elementTypes\"],\"TSUnionType\":[\"types\"],\"TSIntersectionType\":[\"types\"],\"TSParenthesizedType\":[\"typeAnnotation\"],\"TSTypeOperator\":[\"typeAnnotation\"],\"TSIndexedAccessType\":[\"objectType\",\"indexType\"],\"TSMappedType\":[\"typeParameter\",\"typeAnnotation\"],\"TSLiteralType\":[\"literal\"],\"TSExpressionWithTypeArguments\":[\"expression\",\"typeParameters\"],\"TSInterfaceDeclaration\":[\"id\",\"typeParameters\",\"extends\",\"body\"],\"TSInterfaceBody\":[\"body\"],\"TSTypeAliasDeclaration\":[\"id\",\"typeParameters\",\"typeAnnotation\"],\"TSAsExpression\":[\"expression\",\"typeAnnotation\"],\"TSTypeAssertion\":[\"typeAnnotation\",\"expression\"],\"TSEnumDeclaration\":[\"id\",\"members\"],\"TSEnumMember\":[\"id\",\"initializer\"],\"TSModuleDeclaration\":[\"id\",\"body\"],\"TSModuleBlock\":[\"body\"],\"TSImportEqualsDeclaration\":[\"id\",\"moduleReference\"],\"TSExternalModuleReference\":[\"expression\"],\"TSNonNullExpression\":[\"expression\"],\"TSExportAssignment\":[\"expression\"],\"TSNamespaceExportDeclaration\":[\"id\"],\"TSTypeAnnotation\":[\"typeAnnotation\"],\"TSTypeParameterInstantiation\":[\"params\"],\"TSTypeParameterDeclaration\":[\"params\"],\"TSTypeParameter\":[\"constraint\",\"default\"]}",
     _powerAssertRecorder = function () { function PowerAssertRecorder() { this.captured = []; } PowerAssertRecorder.prototype._capt = function _capt(value, espath) { this.captured.push({ value: value, espath: espath }); return value; }; PowerAssertRecorder.prototype._expr = function _expr(value, source) { var capturedValues = this.captured; this.captured = []; return { powerAssertContext: { value: value, events: capturedValues }, source: source }; }; return PowerAssertRecorder; }(),
     _rec = new _powerAssertRecorder(),
     _rec2 = new _powerAssertRecorder(),
@@ -15,108 +15,98 @@ var _powerAssertVisitorKeys = '{"ArrayExpression":["elements"],"AssignmentExpres
     _rec11 = new _powerAssertRecorder(),
     _rec12 = new _powerAssertRecorder();
 
-assert(_rec._expr(_rec._capt(func(), 'arguments/0'), {
-  content: 'assert(func())',
-  filepath: 'test/fixtures/CallExpression/fixture.js',
+assert(_rec._expr(_rec._capt(func(), "arguments/0"), {
+  content: "assert(func())",
+  filepath: "test/fixtures/CallExpression/fixture.js",
   line: 3,
-  ast: '{"type":"CallExpression","callee":{"type":"Identifier","name":"assert","range":[0,6]},"arguments":[{"type":"CallExpression","callee":{"type":"Identifier","name":"func","range":[7,11]},"arguments":[],"range":[7,13]}],"range":[0,14]}',
-  tokens: '[{"type":{"label":"name"},"value":"assert","range":[0,6]},{"type":{"label":"("},"range":[6,7]},{"type":{"label":"name"},"value":"func","range":[7,11]},{"type":{"label":"("},"range":[11,12]},{"type":{"label":")"},"range":[12,13]},{"type":{"label":")"},"range":[13,14]}]',
+  ast: "{\"type\":\"CallExpression\",\"callee\":{\"type\":\"Identifier\",\"name\":\"assert\",\"range\":[0,6]},\"arguments\":[{\"type\":\"CallExpression\",\"callee\":{\"type\":\"Identifier\",\"name\":\"func\",\"range\":[7,11]},\"arguments\":[],\"range\":[7,13]}],\"range\":[0,14]}",
+  tokens: "[{\"type\":{\"label\":\"name\"},\"value\":\"assert\",\"range\":[0,6]},{\"type\":{\"label\":\"(\"},\"range\":[6,7]},{\"type\":{\"label\":\"name\"},\"value\":\"func\",\"range\":[7,11]},{\"type\":{\"label\":\"(\"},\"range\":[11,12]},{\"type\":{\"label\":\")\"},\"range\":[12,13]},{\"type\":{\"label\":\")\"},\"range\":[13,14]}]",
   visitorKeys: _powerAssertVisitorKeys
 }));
-
-assert(_rec2._expr(_rec2._capt(_rec2._capt(obj, 'arguments/0/callee/object').age(), 'arguments/0'), {
-  content: 'assert(obj.age())',
-  filepath: 'test/fixtures/CallExpression/fixture.js',
+assert(_rec2._expr(_rec2._capt(_rec2._capt(obj, "arguments/0/callee/object").age(), "arguments/0"), {
+  content: "assert(obj.age())",
+  filepath: "test/fixtures/CallExpression/fixture.js",
   line: 5,
-  ast: '{"type":"CallExpression","callee":{"type":"Identifier","name":"assert","range":[0,6]},"arguments":[{"type":"CallExpression","callee":{"type":"MemberExpression","object":{"type":"Identifier","name":"obj","range":[7,10]},"property":{"type":"Identifier","name":"age","range":[11,14]},"computed":false,"range":[7,14]},"arguments":[],"range":[7,16]}],"range":[0,17]}',
-  tokens: '[{"type":{"label":"name"},"value":"assert","range":[0,6]},{"type":{"label":"("},"range":[6,7]},{"type":{"label":"name"},"value":"obj","range":[7,10]},{"type":{"label":"."},"range":[10,11]},{"type":{"label":"name"},"value":"age","range":[11,14]},{"type":{"label":"("},"range":[14,15]},{"type":{"label":")"},"range":[15,16]},{"type":{"label":")"},"range":[16,17]}]',
+  ast: "{\"type\":\"CallExpression\",\"callee\":{\"type\":\"Identifier\",\"name\":\"assert\",\"range\":[0,6]},\"arguments\":[{\"type\":\"CallExpression\",\"callee\":{\"type\":\"MemberExpression\",\"object\":{\"type\":\"Identifier\",\"name\":\"obj\",\"range\":[7,10]},\"property\":{\"type\":\"Identifier\",\"name\":\"age\",\"range\":[11,14]},\"computed\":false,\"range\":[7,14]},\"arguments\":[],\"range\":[7,16]}],\"range\":[0,17]}",
+  tokens: "[{\"type\":{\"label\":\"name\"},\"value\":\"assert\",\"range\":[0,6]},{\"type\":{\"label\":\"(\"},\"range\":[6,7]},{\"type\":{\"label\":\"name\"},\"value\":\"obj\",\"range\":[7,10]},{\"type\":{\"label\":\".\"},\"range\":[10,11]},{\"type\":{\"label\":\"name\"},\"value\":\"age\",\"range\":[11,14]},{\"type\":{\"label\":\"(\"},\"range\":[14,15]},{\"type\":{\"label\":\")\"},\"range\":[15,16]},{\"type\":{\"label\":\")\"},\"range\":[16,17]}]",
   visitorKeys: _powerAssertVisitorKeys
 }));
-
-assert(_rec3._expr(_rec3._capt(isFalsy(_rec3._capt(positiveInt, 'arguments/0/arguments/0')), 'arguments/0'), {
-  content: 'assert(isFalsy(positiveInt))',
-  filepath: 'test/fixtures/CallExpression/fixture.js',
+assert(_rec3._expr(_rec3._capt(isFalsy(_rec3._capt(positiveInt, "arguments/0/arguments/0")), "arguments/0"), {
+  content: "assert(isFalsy(positiveInt))",
+  filepath: "test/fixtures/CallExpression/fixture.js",
   line: 7,
-  ast: '{"type":"CallExpression","callee":{"type":"Identifier","name":"assert","range":[0,6]},"arguments":[{"type":"CallExpression","callee":{"type":"Identifier","name":"isFalsy","range":[7,14]},"arguments":[{"type":"Identifier","name":"positiveInt","range":[15,26]}],"range":[7,27]}],"range":[0,28]}',
-  tokens: '[{"type":{"label":"name"},"value":"assert","range":[0,6]},{"type":{"label":"("},"range":[6,7]},{"type":{"label":"name"},"value":"isFalsy","range":[7,14]},{"type":{"label":"("},"range":[14,15]},{"type":{"label":"name"},"value":"positiveInt","range":[15,26]},{"type":{"label":")"},"range":[26,27]},{"type":{"label":")"},"range":[27,28]}]',
+  ast: "{\"type\":\"CallExpression\",\"callee\":{\"type\":\"Identifier\",\"name\":\"assert\",\"range\":[0,6]},\"arguments\":[{\"type\":\"CallExpression\",\"callee\":{\"type\":\"Identifier\",\"name\":\"isFalsy\",\"range\":[7,14]},\"arguments\":[{\"type\":\"Identifier\",\"name\":\"positiveInt\",\"range\":[15,26]}],\"range\":[7,27]}],\"range\":[0,28]}",
+  tokens: "[{\"type\":{\"label\":\"name\"},\"value\":\"assert\",\"range\":[0,6]},{\"type\":{\"label\":\"(\"},\"range\":[6,7]},{\"type\":{\"label\":\"name\"},\"value\":\"isFalsy\",\"range\":[7,14]},{\"type\":{\"label\":\"(\"},\"range\":[14,15]},{\"type\":{\"label\":\"name\"},\"value\":\"positiveInt\",\"range\":[15,26]},{\"type\":{\"label\":\")\"},\"range\":[26,27]},{\"type\":{\"label\":\")\"},\"range\":[27,28]}]",
   visitorKeys: _powerAssertVisitorKeys
 }));
-
-assert(_rec4._expr(_rec4._capt(_rec4._capt(foo, 'arguments/0/callee/object')[_rec4._capt(propName, 'arguments/0/callee/property')](), 'arguments/0'), {
-  content: 'assert(foo[propName]())',
-  filepath: 'test/fixtures/CallExpression/fixture.js',
+assert(_rec4._expr(_rec4._capt(_rec4._capt(foo, "arguments/0/callee/object")[_rec4._capt(propName, "arguments/0/callee/property")](), "arguments/0"), {
+  content: "assert(foo[propName]())",
+  filepath: "test/fixtures/CallExpression/fixture.js",
   line: 9,
-  ast: '{"type":"CallExpression","callee":{"type":"Identifier","name":"assert","range":[0,6]},"arguments":[{"type":"CallExpression","callee":{"type":"MemberExpression","object":{"type":"Identifier","name":"foo","range":[7,10]},"property":{"type":"Identifier","name":"propName","range":[11,19]},"computed":true,"range":[7,20]},"arguments":[],"range":[7,22]}],"range":[0,23]}',
-  tokens: '[{"type":{"label":"name"},"value":"assert","range":[0,6]},{"type":{"label":"("},"range":[6,7]},{"type":{"label":"name"},"value":"foo","range":[7,10]},{"type":{"label":"["},"range":[10,11]},{"type":{"label":"name"},"value":"propName","range":[11,19]},{"type":{"label":"]"},"range":[19,20]},{"type":{"label":"("},"range":[20,21]},{"type":{"label":")"},"range":[21,22]},{"type":{"label":")"},"range":[22,23]}]',
+  ast: "{\"type\":\"CallExpression\",\"callee\":{\"type\":\"Identifier\",\"name\":\"assert\",\"range\":[0,6]},\"arguments\":[{\"type\":\"CallExpression\",\"callee\":{\"type\":\"MemberExpression\",\"object\":{\"type\":\"Identifier\",\"name\":\"foo\",\"range\":[7,10]},\"property\":{\"type\":\"Identifier\",\"name\":\"propName\",\"range\":[11,19]},\"computed\":true,\"range\":[7,20]},\"arguments\":[],\"range\":[7,22]}],\"range\":[0,23]}",
+  tokens: "[{\"type\":{\"label\":\"name\"},\"value\":\"assert\",\"range\":[0,6]},{\"type\":{\"label\":\"(\"},\"range\":[6,7]},{\"type\":{\"label\":\"name\"},\"value\":\"foo\",\"range\":[7,10]},{\"type\":{\"label\":\"[\"},\"range\":[10,11]},{\"type\":{\"label\":\"name\"},\"value\":\"propName\",\"range\":[11,19]},{\"type\":{\"label\":\"]\"},\"range\":[19,20]},{\"type\":{\"label\":\"(\"},\"range\":[20,21]},{\"type\":{\"label\":\")\"},\"range\":[21,22]},{\"type\":{\"label\":\")\"},\"range\":[22,23]}]",
   visitorKeys: _powerAssertVisitorKeys
 }));
-
-assert(_rec5._expr(_rec5._capt(_rec5._capt(foo, 'arguments/0/callee/object')[_rec5._capt(_rec5._capt(hoge, 'arguments/0/callee/property/object')[_rec5._capt(_rec5._capt(fuga, 'arguments/0/callee/property/property/object')[_rec5._capt(piyo, 'arguments/0/callee/property/property/property')], 'arguments/0/callee/property/property')], 'arguments/0/callee/property')](), 'arguments/0'), {
-  content: 'assert(foo[hoge[fuga[piyo]]]())',
-  filepath: 'test/fixtures/CallExpression/fixture.js',
+assert(_rec5._expr(_rec5._capt(_rec5._capt(foo, "arguments/0/callee/object")[_rec5._capt(_rec5._capt(hoge, "arguments/0/callee/property/object")[_rec5._capt(_rec5._capt(fuga, "arguments/0/callee/property/property/object")[_rec5._capt(piyo, "arguments/0/callee/property/property/property")], "arguments/0/callee/property/property")], "arguments/0/callee/property")](), "arguments/0"), {
+  content: "assert(foo[hoge[fuga[piyo]]]())",
+  filepath: "test/fixtures/CallExpression/fixture.js",
   line: 11,
-  ast: '{"type":"CallExpression","callee":{"type":"Identifier","name":"assert","range":[0,6]},"arguments":[{"type":"CallExpression","callee":{"type":"MemberExpression","object":{"type":"Identifier","name":"foo","range":[7,10]},"property":{"type":"MemberExpression","object":{"type":"Identifier","name":"hoge","range":[11,15]},"property":{"type":"MemberExpression","object":{"type":"Identifier","name":"fuga","range":[16,20]},"property":{"type":"Identifier","name":"piyo","range":[21,25]},"computed":true,"range":[16,26]},"computed":true,"range":[11,27]},"computed":true,"range":[7,28]},"arguments":[],"range":[7,30]}],"range":[0,31]}',
-  tokens: '[{"type":{"label":"name"},"value":"assert","range":[0,6]},{"type":{"label":"("},"range":[6,7]},{"type":{"label":"name"},"value":"foo","range":[7,10]},{"type":{"label":"["},"range":[10,11]},{"type":{"label":"name"},"value":"hoge","range":[11,15]},{"type":{"label":"["},"range":[15,16]},{"type":{"label":"name"},"value":"fuga","range":[16,20]},{"type":{"label":"["},"range":[20,21]},{"type":{"label":"name"},"value":"piyo","range":[21,25]},{"type":{"label":"]"},"range":[25,26]},{"type":{"label":"]"},"range":[26,27]},{"type":{"label":"]"},"range":[27,28]},{"type":{"label":"("},"range":[28,29]},{"type":{"label":")"},"range":[29,30]},{"type":{"label":")"},"range":[30,31]}]',
+  ast: "{\"type\":\"CallExpression\",\"callee\":{\"type\":\"Identifier\",\"name\":\"assert\",\"range\":[0,6]},\"arguments\":[{\"type\":\"CallExpression\",\"callee\":{\"type\":\"MemberExpression\",\"object\":{\"type\":\"Identifier\",\"name\":\"foo\",\"range\":[7,10]},\"property\":{\"type\":\"MemberExpression\",\"object\":{\"type\":\"Identifier\",\"name\":\"hoge\",\"range\":[11,15]},\"property\":{\"type\":\"MemberExpression\",\"object\":{\"type\":\"Identifier\",\"name\":\"fuga\",\"range\":[16,20]},\"property\":{\"type\":\"Identifier\",\"name\":\"piyo\",\"range\":[21,25]},\"computed\":true,\"range\":[16,26]},\"computed\":true,\"range\":[11,27]},\"computed\":true,\"range\":[7,28]},\"arguments\":[],\"range\":[7,30]}],\"range\":[0,31]}",
+  tokens: "[{\"type\":{\"label\":\"name\"},\"value\":\"assert\",\"range\":[0,6]},{\"type\":{\"label\":\"(\"},\"range\":[6,7]},{\"type\":{\"label\":\"name\"},\"value\":\"foo\",\"range\":[7,10]},{\"type\":{\"label\":\"[\"},\"range\":[10,11]},{\"type\":{\"label\":\"name\"},\"value\":\"hoge\",\"range\":[11,15]},{\"type\":{\"label\":\"[\"},\"range\":[15,16]},{\"type\":{\"label\":\"name\"},\"value\":\"fuga\",\"range\":[16,20]},{\"type\":{\"label\":\"[\"},\"range\":[20,21]},{\"type\":{\"label\":\"name\"},\"value\":\"piyo\",\"range\":[21,25]},{\"type\":{\"label\":\"]\"},\"range\":[25,26]},{\"type\":{\"label\":\"]\"},\"range\":[26,27]},{\"type\":{\"label\":\"]\"},\"range\":[27,28]},{\"type\":{\"label\":\"(\"},\"range\":[28,29]},{\"type\":{\"label\":\")\"},\"range\":[29,30]},{\"type\":{\"label\":\")\"},\"range\":[30,31]}]",
   visitorKeys: _powerAssertVisitorKeys
 }));
-
-assert(_rec6._expr(_rec6._capt(_rec6._capt(sum(_rec6._capt(one, 'arguments/0/left/arguments/0'), _rec6._capt(two, 'arguments/0/left/arguments/1'), _rec6._capt(three, 'arguments/0/left/arguments/2')), 'arguments/0/left') === _rec6._capt(seven, 'arguments/0/right'), 'arguments/0'), {
-  content: 'assert(sum(one, two, three) === seven)',
-  filepath: 'test/fixtures/CallExpression/fixture.js',
+assert(_rec6._expr(_rec6._capt(_rec6._capt(sum(_rec6._capt(one, "arguments/0/left/arguments/0"), _rec6._capt(two, "arguments/0/left/arguments/1"), _rec6._capt(three, "arguments/0/left/arguments/2")), "arguments/0/left") === _rec6._capt(seven, "arguments/0/right"), "arguments/0"), {
+  content: "assert(sum(one, two, three) === seven)",
+  filepath: "test/fixtures/CallExpression/fixture.js",
   line: 13,
-  ast: '{"type":"CallExpression","callee":{"type":"Identifier","name":"assert","range":[0,6]},"arguments":[{"type":"BinaryExpression","operator":"===","left":{"type":"CallExpression","callee":{"type":"Identifier","name":"sum","range":[7,10]},"arguments":[{"type":"Identifier","name":"one","range":[11,14]},{"type":"Identifier","name":"two","range":[16,19]},{"type":"Identifier","name":"three","range":[21,26]}],"range":[7,27]},"right":{"type":"Identifier","name":"seven","range":[32,37]},"range":[7,37]}],"range":[0,38]}',
-  tokens: '[{"type":{"label":"name"},"value":"assert","range":[0,6]},{"type":{"label":"("},"range":[6,7]},{"type":{"label":"name"},"value":"sum","range":[7,10]},{"type":{"label":"("},"range":[10,11]},{"type":{"label":"name"},"value":"one","range":[11,14]},{"type":{"label":","},"range":[14,15]},{"type":{"label":"name"},"value":"two","range":[16,19]},{"type":{"label":","},"range":[19,20]},{"type":{"label":"name"},"value":"three","range":[21,26]},{"type":{"label":")"},"range":[26,27]},{"type":{"label":"==/!="},"value":"===","range":[28,31]},{"type":{"label":"name"},"value":"seven","range":[32,37]},{"type":{"label":")"},"range":[37,38]}]',
+  ast: "{\"type\":\"CallExpression\",\"callee\":{\"type\":\"Identifier\",\"name\":\"assert\",\"range\":[0,6]},\"arguments\":[{\"type\":\"BinaryExpression\",\"operator\":\"===\",\"left\":{\"type\":\"CallExpression\",\"callee\":{\"type\":\"Identifier\",\"name\":\"sum\",\"range\":[7,10]},\"arguments\":[{\"type\":\"Identifier\",\"name\":\"one\",\"range\":[11,14]},{\"type\":\"Identifier\",\"name\":\"two\",\"range\":[16,19]},{\"type\":\"Identifier\",\"name\":\"three\",\"range\":[21,26]}],\"range\":[7,27]},\"right\":{\"type\":\"Identifier\",\"name\":\"seven\",\"range\":[32,37]},\"range\":[7,37]}],\"range\":[0,38]}",
+  tokens: "[{\"type\":{\"label\":\"name\"},\"value\":\"assert\",\"range\":[0,6]},{\"type\":{\"label\":\"(\"},\"range\":[6,7]},{\"type\":{\"label\":\"name\"},\"value\":\"sum\",\"range\":[7,10]},{\"type\":{\"label\":\"(\"},\"range\":[10,11]},{\"type\":{\"label\":\"name\"},\"value\":\"one\",\"range\":[11,14]},{\"type\":{\"label\":\",\"},\"range\":[14,15]},{\"type\":{\"label\":\"name\"},\"value\":\"two\",\"range\":[16,19]},{\"type\":{\"label\":\",\"},\"range\":[19,20]},{\"type\":{\"label\":\"name\"},\"value\":\"three\",\"range\":[21,26]},{\"type\":{\"label\":\")\"},\"range\":[26,27]},{\"type\":{\"label\":\"==/!=\"},\"value\":\"===\",\"range\":[28,31]},{\"type\":{\"label\":\"name\"},\"value\":\"seven\",\"range\":[32,37]},{\"type\":{\"label\":\")\"},\"range\":[37,38]}]",
   visitorKeys: _powerAssertVisitorKeys
 }));
-
-assert(_rec7._expr(_rec7._capt(_rec7._capt(sum(_rec7._capt(sum(_rec7._capt(one, 'arguments/0/left/arguments/0/arguments/0'), _rec7._capt(two, 'arguments/0/left/arguments/0/arguments/1')), 'arguments/0/left/arguments/0'), _rec7._capt(three, 'arguments/0/left/arguments/1')), 'arguments/0/left') === _rec7._capt(sum(_rec7._capt(sum(_rec7._capt(two, 'arguments/0/right/arguments/0/arguments/0'), _rec7._capt(three, 'arguments/0/right/arguments/0/arguments/1')), 'arguments/0/right/arguments/0'), _rec7._capt(seven, 'arguments/0/right/arguments/1')), 'arguments/0/right'), 'arguments/0'), {
-  content: 'assert(sum(sum(one, two), three) === sum(sum(two, three), seven))',
-  filepath: 'test/fixtures/CallExpression/fixture.js',
+assert(_rec7._expr(_rec7._capt(_rec7._capt(sum(_rec7._capt(sum(_rec7._capt(one, "arguments/0/left/arguments/0/arguments/0"), _rec7._capt(two, "arguments/0/left/arguments/0/arguments/1")), "arguments/0/left/arguments/0"), _rec7._capt(three, "arguments/0/left/arguments/1")), "arguments/0/left") === _rec7._capt(sum(_rec7._capt(sum(_rec7._capt(two, "arguments/0/right/arguments/0/arguments/0"), _rec7._capt(three, "arguments/0/right/arguments/0/arguments/1")), "arguments/0/right/arguments/0"), _rec7._capt(seven, "arguments/0/right/arguments/1")), "arguments/0/right"), "arguments/0"), {
+  content: "assert(sum(sum(one, two), three) === sum(sum(two, three), seven))",
+  filepath: "test/fixtures/CallExpression/fixture.js",
   line: 15,
-  ast: '{"type":"CallExpression","callee":{"type":"Identifier","name":"assert","range":[0,6]},"arguments":[{"type":"BinaryExpression","operator":"===","left":{"type":"CallExpression","callee":{"type":"Identifier","name":"sum","range":[7,10]},"arguments":[{"type":"CallExpression","callee":{"type":"Identifier","name":"sum","range":[11,14]},"arguments":[{"type":"Identifier","name":"one","range":[15,18]},{"type":"Identifier","name":"two","range":[20,23]}],"range":[11,24]},{"type":"Identifier","name":"three","range":[26,31]}],"range":[7,32]},"right":{"type":"CallExpression","callee":{"type":"Identifier","name":"sum","range":[37,40]},"arguments":[{"type":"CallExpression","callee":{"type":"Identifier","name":"sum","range":[41,44]},"arguments":[{"type":"Identifier","name":"two","range":[45,48]},{"type":"Identifier","name":"three","range":[50,55]}],"range":[41,56]},{"type":"Identifier","name":"seven","range":[58,63]}],"range":[37,64]},"range":[7,64]}],"range":[0,65]}',
-  tokens: '[{"type":{"label":"name"},"value":"assert","range":[0,6]},{"type":{"label":"("},"range":[6,7]},{"type":{"label":"name"},"value":"sum","range":[7,10]},{"type":{"label":"("},"range":[10,11]},{"type":{"label":"name"},"value":"sum","range":[11,14]},{"type":{"label":"("},"range":[14,15]},{"type":{"label":"name"},"value":"one","range":[15,18]},{"type":{"label":","},"range":[18,19]},{"type":{"label":"name"},"value":"two","range":[20,23]},{"type":{"label":")"},"range":[23,24]},{"type":{"label":","},"range":[24,25]},{"type":{"label":"name"},"value":"three","range":[26,31]},{"type":{"label":")"},"range":[31,32]},{"type":{"label":"==/!="},"value":"===","range":[33,36]},{"type":{"label":"name"},"value":"sum","range":[37,40]},{"type":{"label":"("},"range":[40,41]},{"type":{"label":"name"},"value":"sum","range":[41,44]},{"type":{"label":"("},"range":[44,45]},{"type":{"label":"name"},"value":"two","range":[45,48]},{"type":{"label":","},"range":[48,49]},{"type":{"label":"name"},"value":"three","range":[50,55]},{"type":{"label":")"},"range":[55,56]},{"type":{"label":","},"range":[56,57]},{"type":{"label":"name"},"value":"seven","range":[58,63]},{"type":{"label":")"},"range":[63,64]},{"type":{"label":")"},"range":[64,65]}]',
+  ast: "{\"type\":\"CallExpression\",\"callee\":{\"type\":\"Identifier\",\"name\":\"assert\",\"range\":[0,6]},\"arguments\":[{\"type\":\"BinaryExpression\",\"operator\":\"===\",\"left\":{\"type\":\"CallExpression\",\"callee\":{\"type\":\"Identifier\",\"name\":\"sum\",\"range\":[7,10]},\"arguments\":[{\"type\":\"CallExpression\",\"callee\":{\"type\":\"Identifier\",\"name\":\"sum\",\"range\":[11,14]},\"arguments\":[{\"type\":\"Identifier\",\"name\":\"one\",\"range\":[15,18]},{\"type\":\"Identifier\",\"name\":\"two\",\"range\":[20,23]}],\"range\":[11,24]},{\"type\":\"Identifier\",\"name\":\"three\",\"range\":[26,31]}],\"range\":[7,32]},\"right\":{\"type\":\"CallExpression\",\"callee\":{\"type\":\"Identifier\",\"name\":\"sum\",\"range\":[37,40]},\"arguments\":[{\"type\":\"CallExpression\",\"callee\":{\"type\":\"Identifier\",\"name\":\"sum\",\"range\":[41,44]},\"arguments\":[{\"type\":\"Identifier\",\"name\":\"two\",\"range\":[45,48]},{\"type\":\"Identifier\",\"name\":\"three\",\"range\":[50,55]}],\"range\":[41,56]},{\"type\":\"Identifier\",\"name\":\"seven\",\"range\":[58,63]}],\"range\":[37,64]},\"range\":[7,64]}],\"range\":[0,65]}",
+  tokens: "[{\"type\":{\"label\":\"name\"},\"value\":\"assert\",\"range\":[0,6]},{\"type\":{\"label\":\"(\"},\"range\":[6,7]},{\"type\":{\"label\":\"name\"},\"value\":\"sum\",\"range\":[7,10]},{\"type\":{\"label\":\"(\"},\"range\":[10,11]},{\"type\":{\"label\":\"name\"},\"value\":\"sum\",\"range\":[11,14]},{\"type\":{\"label\":\"(\"},\"range\":[14,15]},{\"type\":{\"label\":\"name\"},\"value\":\"one\",\"range\":[15,18]},{\"type\":{\"label\":\",\"},\"range\":[18,19]},{\"type\":{\"label\":\"name\"},\"value\":\"two\",\"range\":[20,23]},{\"type\":{\"label\":\")\"},\"range\":[23,24]},{\"type\":{\"label\":\",\"},\"range\":[24,25]},{\"type\":{\"label\":\"name\"},\"value\":\"three\",\"range\":[26,31]},{\"type\":{\"label\":\")\"},\"range\":[31,32]},{\"type\":{\"label\":\"==/!=\"},\"value\":\"===\",\"range\":[33,36]},{\"type\":{\"label\":\"name\"},\"value\":\"sum\",\"range\":[37,40]},{\"type\":{\"label\":\"(\"},\"range\":[40,41]},{\"type\":{\"label\":\"name\"},\"value\":\"sum\",\"range\":[41,44]},{\"type\":{\"label\":\"(\"},\"range\":[44,45]},{\"type\":{\"label\":\"name\"},\"value\":\"two\",\"range\":[45,48]},{\"type\":{\"label\":\",\"},\"range\":[48,49]},{\"type\":{\"label\":\"name\"},\"value\":\"three\",\"range\":[50,55]},{\"type\":{\"label\":\")\"},\"range\":[55,56]},{\"type\":{\"label\":\",\"},\"range\":[56,57]},{\"type\":{\"label\":\"name\"},\"value\":\"seven\",\"range\":[58,63]},{\"type\":{\"label\":\")\"},\"range\":[63,64]},{\"type\":{\"label\":\")\"},\"range\":[64,65]}]",
   visitorKeys: _powerAssertVisitorKeys
 }));
-
-assert(_rec8._expr(_rec8._capt(_rec8._capt(_rec8._capt(_rec8._capt(math, 'arguments/0/left/callee/object/object').calc, 'arguments/0/left/callee/object').sum(_rec8._capt(one, 'arguments/0/left/arguments/0'), _rec8._capt(two, 'arguments/0/left/arguments/1'), _rec8._capt(three, 'arguments/0/left/arguments/2')), 'arguments/0/left') === _rec8._capt(seven, 'arguments/0/right'), 'arguments/0'), {
-  content: 'assert(math.calc.sum(one, two, three) === seven)',
-  filepath: 'test/fixtures/CallExpression/fixture.js',
+assert(_rec8._expr(_rec8._capt(_rec8._capt(_rec8._capt(_rec8._capt(math, "arguments/0/left/callee/object/object").calc, "arguments/0/left/callee/object").sum(_rec8._capt(one, "arguments/0/left/arguments/0"), _rec8._capt(two, "arguments/0/left/arguments/1"), _rec8._capt(three, "arguments/0/left/arguments/2")), "arguments/0/left") === _rec8._capt(seven, "arguments/0/right"), "arguments/0"), {
+  content: "assert(math.calc.sum(one, two, three) === seven)",
+  filepath: "test/fixtures/CallExpression/fixture.js",
   line: 17,
-  ast: '{"type":"CallExpression","callee":{"type":"Identifier","name":"assert","range":[0,6]},"arguments":[{"type":"BinaryExpression","operator":"===","left":{"type":"CallExpression","callee":{"type":"MemberExpression","object":{"type":"MemberExpression","object":{"type":"Identifier","name":"math","range":[7,11]},"property":{"type":"Identifier","name":"calc","range":[12,16]},"computed":false,"range":[7,16]},"property":{"type":"Identifier","name":"sum","range":[17,20]},"computed":false,"range":[7,20]},"arguments":[{"type":"Identifier","name":"one","range":[21,24]},{"type":"Identifier","name":"two","range":[26,29]},{"type":"Identifier","name":"three","range":[31,36]}],"range":[7,37]},"right":{"type":"Identifier","name":"seven","range":[42,47]},"range":[7,47]}],"range":[0,48]}',
-  tokens: '[{"type":{"label":"name"},"value":"assert","range":[0,6]},{"type":{"label":"("},"range":[6,7]},{"type":{"label":"name"},"value":"math","range":[7,11]},{"type":{"label":"."},"range":[11,12]},{"type":{"label":"name"},"value":"calc","range":[12,16]},{"type":{"label":"."},"range":[16,17]},{"type":{"label":"name"},"value":"sum","range":[17,20]},{"type":{"label":"("},"range":[20,21]},{"type":{"label":"name"},"value":"one","range":[21,24]},{"type":{"label":","},"range":[24,25]},{"type":{"label":"name"},"value":"two","range":[26,29]},{"type":{"label":","},"range":[29,30]},{"type":{"label":"name"},"value":"three","range":[31,36]},{"type":{"label":")"},"range":[36,37]},{"type":{"label":"==/!="},"value":"===","range":[38,41]},{"type":{"label":"name"},"value":"seven","range":[42,47]},{"type":{"label":")"},"range":[47,48]}]',
+  ast: "{\"type\":\"CallExpression\",\"callee\":{\"type\":\"Identifier\",\"name\":\"assert\",\"range\":[0,6]},\"arguments\":[{\"type\":\"BinaryExpression\",\"operator\":\"===\",\"left\":{\"type\":\"CallExpression\",\"callee\":{\"type\":\"MemberExpression\",\"object\":{\"type\":\"MemberExpression\",\"object\":{\"type\":\"Identifier\",\"name\":\"math\",\"range\":[7,11]},\"property\":{\"type\":\"Identifier\",\"name\":\"calc\",\"range\":[12,16]},\"computed\":false,\"range\":[7,16]},\"property\":{\"type\":\"Identifier\",\"name\":\"sum\",\"range\":[17,20]},\"computed\":false,\"range\":[7,20]},\"arguments\":[{\"type\":\"Identifier\",\"name\":\"one\",\"range\":[21,24]},{\"type\":\"Identifier\",\"name\":\"two\",\"range\":[26,29]},{\"type\":\"Identifier\",\"name\":\"three\",\"range\":[31,36]}],\"range\":[7,37]},\"right\":{\"type\":\"Identifier\",\"name\":\"seven\",\"range\":[42,47]},\"range\":[7,47]}],\"range\":[0,48]}",
+  tokens: "[{\"type\":{\"label\":\"name\"},\"value\":\"assert\",\"range\":[0,6]},{\"type\":{\"label\":\"(\"},\"range\":[6,7]},{\"type\":{\"label\":\"name\"},\"value\":\"math\",\"range\":[7,11]},{\"type\":{\"label\":\".\"},\"range\":[11,12]},{\"type\":{\"label\":\"name\"},\"value\":\"calc\",\"range\":[12,16]},{\"type\":{\"label\":\".\"},\"range\":[16,17]},{\"type\":{\"label\":\"name\"},\"value\":\"sum\",\"range\":[17,20]},{\"type\":{\"label\":\"(\"},\"range\":[20,21]},{\"type\":{\"label\":\"name\"},\"value\":\"one\",\"range\":[21,24]},{\"type\":{\"label\":\",\"},\"range\":[24,25]},{\"type\":{\"label\":\"name\"},\"value\":\"two\",\"range\":[26,29]},{\"type\":{\"label\":\",\"},\"range\":[29,30]},{\"type\":{\"label\":\"name\"},\"value\":\"three\",\"range\":[31,36]},{\"type\":{\"label\":\")\"},\"range\":[36,37]},{\"type\":{\"label\":\"==/!=\"},\"value\":\"===\",\"range\":[38,41]},{\"type\":{\"label\":\"name\"},\"value\":\"seven\",\"range\":[42,47]},{\"type\":{\"label\":\")\"},\"range\":[47,48]}]",
   visitorKeys: _powerAssertVisitorKeys
 }));
-
-assert(_rec9._expr(_rec9._capt(_rec9._capt(_rec9._capt(three, 'arguments/0/left/left') * _rec9._capt(_rec9._capt(seven, 'arguments/0/left/right/left') * _rec9._capt(ten, 'arguments/0/left/right/right'), 'arguments/0/left/right'), 'arguments/0/left') === _rec9._capt(three, 'arguments/0/right'), 'arguments/0'), {
-  content: 'assert(three * (seven * ten) === three)',
-  filepath: 'test/fixtures/CallExpression/fixture.js',
+assert(_rec9._expr(_rec9._capt(_rec9._capt(_rec9._capt(three, "arguments/0/left/left") * _rec9._capt(_rec9._capt(seven, "arguments/0/left/right/left") * _rec9._capt(ten, "arguments/0/left/right/right"), "arguments/0/left/right"), "arguments/0/left") === _rec9._capt(three, "arguments/0/right"), "arguments/0"), {
+  content: "assert(three * (seven * ten) === three)",
+  filepath: "test/fixtures/CallExpression/fixture.js",
   line: 19,
-  ast: '{"type":"CallExpression","callee":{"type":"Identifier","name":"assert","range":[0,6]},"arguments":[{"type":"BinaryExpression","operator":"===","left":{"type":"BinaryExpression","operator":"*","left":{"type":"Identifier","name":"three","range":[7,12]},"right":{"type":"BinaryExpression","operator":"*","left":{"type":"Identifier","name":"seven","range":[16,21]},"right":{"type":"Identifier","name":"ten","range":[24,27]},"range":[16,27]},"range":[7,28]},"right":{"type":"Identifier","name":"three","range":[33,38]},"range":[7,38]}],"range":[0,39]}',
-  tokens: '[{"type":{"label":"name"},"value":"assert","range":[0,6]},{"type":{"label":"("},"range":[6,7]},{"type":{"label":"name"},"value":"three","range":[7,12]},{"type":{"label":"*"},"value":"*","range":[13,14]},{"type":{"label":"("},"range":[15,16]},{"type":{"label":"name"},"value":"seven","range":[16,21]},{"type":{"label":"*"},"value":"*","range":[22,23]},{"type":{"label":"name"},"value":"ten","range":[24,27]},{"type":{"label":")"},"range":[27,28]},{"type":{"label":"==/!="},"value":"===","range":[29,32]},{"type":{"label":"name"},"value":"three","range":[33,38]},{"type":{"label":")"},"range":[38,39]}]',
+  ast: "{\"type\":\"CallExpression\",\"callee\":{\"type\":\"Identifier\",\"name\":\"assert\",\"range\":[0,6]},\"arguments\":[{\"type\":\"BinaryExpression\",\"operator\":\"===\",\"left\":{\"type\":\"BinaryExpression\",\"operator\":\"*\",\"left\":{\"type\":\"Identifier\",\"name\":\"three\",\"range\":[7,12]},\"right\":{\"type\":\"BinaryExpression\",\"operator\":\"*\",\"left\":{\"type\":\"Identifier\",\"name\":\"seven\",\"range\":[16,21]},\"right\":{\"type\":\"Identifier\",\"name\":\"ten\",\"range\":[24,27]},\"range\":[16,27]},\"range\":[7,28]},\"right\":{\"type\":\"Identifier\",\"name\":\"three\",\"range\":[33,38]},\"range\":[7,38]}],\"range\":[0,39]}",
+  tokens: "[{\"type\":{\"label\":\"name\"},\"value\":\"assert\",\"range\":[0,6]},{\"type\":{\"label\":\"(\"},\"range\":[6,7]},{\"type\":{\"label\":\"name\"},\"value\":\"three\",\"range\":[7,12]},{\"type\":{\"label\":\"*\"},\"value\":\"*\",\"range\":[13,14]},{\"type\":{\"label\":\"(\"},\"range\":[15,16]},{\"type\":{\"label\":\"name\"},\"value\":\"seven\",\"range\":[16,21]},{\"type\":{\"label\":\"*\"},\"value\":\"*\",\"range\":[22,23]},{\"type\":{\"label\":\"name\"},\"value\":\"ten\",\"range\":[24,27]},{\"type\":{\"label\":\")\"},\"range\":[27,28]},{\"type\":{\"label\":\"==/!=\"},\"value\":\"===\",\"range\":[29,32]},{\"type\":{\"label\":\"name\"},\"value\":\"three\",\"range\":[33,38]},{\"type\":{\"label\":\")\"},\"range\":[38,39]}]",
   visitorKeys: _powerAssertVisitorKeys
 }));
-
-assert(_rec10._expr(_rec10._capt(!_rec10._capt(concat(_rec10._capt(fuga, 'arguments/0/argument/arguments/0'), _rec10._capt(piyo, 'arguments/0/argument/arguments/1')), 'arguments/0/argument'), 'arguments/0'), {
-  content: 'assert(!concat(fuga, piyo))',
-  filepath: 'test/fixtures/CallExpression/fixture.js',
+assert(_rec10._expr(_rec10._capt(!_rec10._capt(concat(_rec10._capt(fuga, "arguments/0/argument/arguments/0"), _rec10._capt(piyo, "arguments/0/argument/arguments/1")), "arguments/0/argument"), "arguments/0"), {
+  content: "assert(!concat(fuga, piyo))",
+  filepath: "test/fixtures/CallExpression/fixture.js",
   line: 21,
-  ast: '{"type":"CallExpression","callee":{"type":"Identifier","name":"assert","range":[0,6]},"arguments":[{"type":"UnaryExpression","operator":"!","argument":{"type":"CallExpression","callee":{"type":"Identifier","name":"concat","range":[8,14]},"arguments":[{"type":"Identifier","name":"fuga","range":[15,19]},{"type":"Identifier","name":"piyo","range":[21,25]}],"range":[8,26]},"prefix":true,"range":[7,26]}],"range":[0,27]}',
-  tokens: '[{"type":{"label":"name"},"value":"assert","range":[0,6]},{"type":{"label":"("},"range":[6,7]},{"type":{"label":"prefix"},"value":"!","range":[7,8]},{"type":{"label":"name"},"value":"concat","range":[8,14]},{"type":{"label":"("},"range":[14,15]},{"type":{"label":"name"},"value":"fuga","range":[15,19]},{"type":{"label":","},"range":[19,20]},{"type":{"label":"name"},"value":"piyo","range":[21,25]},{"type":{"label":")"},"range":[25,26]},{"type":{"label":")"},"range":[26,27]}]',
+  ast: "{\"type\":\"CallExpression\",\"callee\":{\"type\":\"Identifier\",\"name\":\"assert\",\"range\":[0,6]},\"arguments\":[{\"type\":\"UnaryExpression\",\"operator\":\"!\",\"argument\":{\"type\":\"CallExpression\",\"callee\":{\"type\":\"Identifier\",\"name\":\"concat\",\"range\":[8,14]},\"arguments\":[{\"type\":\"Identifier\",\"name\":\"fuga\",\"range\":[15,19]},{\"type\":\"Identifier\",\"name\":\"piyo\",\"range\":[21,25]}],\"range\":[8,26]},\"prefix\":true,\"range\":[7,26]}],\"range\":[0,27]}",
+  tokens: "[{\"type\":{\"label\":\"name\"},\"value\":\"assert\",\"range\":[0,6]},{\"type\":{\"label\":\"(\"},\"range\":[6,7]},{\"type\":{\"label\":\"!\"},\"value\":\"!\",\"range\":[7,8]},{\"type\":{\"label\":\"name\"},\"value\":\"concat\",\"range\":[8,14]},{\"type\":{\"label\":\"(\"},\"range\":[14,15]},{\"type\":{\"label\":\"name\"},\"value\":\"fuga\",\"range\":[15,19]},{\"type\":{\"label\":\",\"},\"range\":[19,20]},{\"type\":{\"label\":\"name\"},\"value\":\"piyo\",\"range\":[21,25]},{\"type\":{\"label\":\")\"},\"range\":[25,26]},{\"type\":{\"label\":\")\"},\"range\":[26,27]}]",
   visitorKeys: _powerAssertVisitorKeys
 }));
-
-assert.strictEqual(_rec11._expr(_rec11._capt(_rec11._capt(three, 'arguments/0/left') * _rec11._capt(_rec11._capt(seven, 'arguments/0/right/left') * _rec11._capt(ten, 'arguments/0/right/right'), 'arguments/0/right'), 'arguments/0'), {
-  content: 'assert.strictEqual(three * (seven * ten), math.calc.sum(one, two, three))',
-  filepath: 'test/fixtures/CallExpression/fixture.js',
+assert.strictEqual(_rec11._expr(_rec11._capt(_rec11._capt(three, "arguments/0/left") * _rec11._capt(_rec11._capt(seven, "arguments/0/right/left") * _rec11._capt(ten, "arguments/0/right/right"), "arguments/0/right"), "arguments/0"), {
+  content: "assert.strictEqual(three * (seven * ten), math.calc.sum(one, two, three))",
+  filepath: "test/fixtures/CallExpression/fixture.js",
   line: 23,
-  ast: '{"type":"CallExpression","callee":{"type":"MemberExpression","object":{"type":"Identifier","name":"assert","range":[0,6]},"property":{"type":"Identifier","name":"strictEqual","range":[7,18]},"computed":false,"range":[0,18]},"arguments":[{"type":"BinaryExpression","operator":"*","left":{"type":"Identifier","name":"three","range":[19,24]},"right":{"type":"BinaryExpression","operator":"*","left":{"type":"Identifier","name":"seven","range":[28,33]},"right":{"type":"Identifier","name":"ten","range":[36,39]},"range":[28,39]},"range":[19,40]},{"type":"CallExpression","callee":{"type":"MemberExpression","object":{"type":"MemberExpression","object":{"type":"Identifier","name":"math","range":[42,46]},"property":{"type":"Identifier","name":"calc","range":[47,51]},"computed":false,"range":[42,51]},"property":{"type":"Identifier","name":"sum","range":[52,55]},"computed":false,"range":[42,55]},"arguments":[{"type":"Identifier","name":"one","range":[56,59]},{"type":"Identifier","name":"two","range":[61,64]},{"type":"Identifier","name":"three","range":[66,71]}],"range":[42,72]}],"range":[0,73]}',
-  tokens: '[{"type":{"label":"name"},"value":"assert","range":[0,6]},{"type":{"label":"."},"range":[6,7]},{"type":{"label":"name"},"value":"strictEqual","range":[7,18]},{"type":{"label":"("},"range":[18,19]},{"type":{"label":"name"},"value":"three","range":[19,24]},{"type":{"label":"*"},"value":"*","range":[25,26]},{"type":{"label":"("},"range":[27,28]},{"type":{"label":"name"},"value":"seven","range":[28,33]},{"type":{"label":"*"},"value":"*","range":[34,35]},{"type":{"label":"name"},"value":"ten","range":[36,39]},{"type":{"label":")"},"range":[39,40]},{"type":{"label":","},"range":[40,41]},{"type":{"label":"name"},"value":"math","range":[42,46]},{"type":{"label":"."},"range":[46,47]},{"type":{"label":"name"},"value":"calc","range":[47,51]},{"type":{"label":"."},"range":[51,52]},{"type":{"label":"name"},"value":"sum","range":[52,55]},{"type":{"label":"("},"range":[55,56]},{"type":{"label":"name"},"value":"one","range":[56,59]},{"type":{"label":","},"range":[59,60]},{"type":{"label":"name"},"value":"two","range":[61,64]},{"type":{"label":","},"range":[64,65]},{"type":{"label":"name"},"value":"three","range":[66,71]},{"type":{"label":")"},"range":[71,72]},{"type":{"label":")"},"range":[72,73]}]',
+  ast: "{\"type\":\"CallExpression\",\"callee\":{\"type\":\"MemberExpression\",\"object\":{\"type\":\"Identifier\",\"name\":\"assert\",\"range\":[0,6]},\"property\":{\"type\":\"Identifier\",\"name\":\"strictEqual\",\"range\":[7,18]},\"computed\":false,\"range\":[0,18]},\"arguments\":[{\"type\":\"BinaryExpression\",\"operator\":\"*\",\"left\":{\"type\":\"Identifier\",\"name\":\"three\",\"range\":[19,24]},\"right\":{\"type\":\"BinaryExpression\",\"operator\":\"*\",\"left\":{\"type\":\"Identifier\",\"name\":\"seven\",\"range\":[28,33]},\"right\":{\"type\":\"Identifier\",\"name\":\"ten\",\"range\":[36,39]},\"range\":[28,39]},\"range\":[19,40]},{\"type\":\"CallExpression\",\"callee\":{\"type\":\"MemberExpression\",\"object\":{\"type\":\"MemberExpression\",\"object\":{\"type\":\"Identifier\",\"name\":\"math\",\"range\":[42,46]},\"property\":{\"type\":\"Identifier\",\"name\":\"calc\",\"range\":[47,51]},\"computed\":false,\"range\":[42,51]},\"property\":{\"type\":\"Identifier\",\"name\":\"sum\",\"range\":[52,55]},\"computed\":false,\"range\":[42,55]},\"arguments\":[{\"type\":\"Identifier\",\"name\":\"one\",\"range\":[56,59]},{\"type\":\"Identifier\",\"name\":\"two\",\"range\":[61,64]},{\"type\":\"Identifier\",\"name\":\"three\",\"range\":[66,71]}],\"range\":[42,72]}],\"range\":[0,73]}",
+  tokens: "[{\"type\":{\"label\":\"name\"},\"value\":\"assert\",\"range\":[0,6]},{\"type\":{\"label\":\".\"},\"range\":[6,7]},{\"type\":{\"label\":\"name\"},\"value\":\"strictEqual\",\"range\":[7,18]},{\"type\":{\"label\":\"(\"},\"range\":[18,19]},{\"type\":{\"label\":\"name\"},\"value\":\"three\",\"range\":[19,24]},{\"type\":{\"label\":\"*\"},\"value\":\"*\",\"range\":[25,26]},{\"type\":{\"label\":\"(\"},\"range\":[27,28]},{\"type\":{\"label\":\"name\"},\"value\":\"seven\",\"range\":[28,33]},{\"type\":{\"label\":\"*\"},\"value\":\"*\",\"range\":[34,35]},{\"type\":{\"label\":\"name\"},\"value\":\"ten\",\"range\":[36,39]},{\"type\":{\"label\":\")\"},\"range\":[39,40]},{\"type\":{\"label\":\",\"},\"range\":[40,41]},{\"type\":{\"label\":\"name\"},\"value\":\"math\",\"range\":[42,46]},{\"type\":{\"label\":\".\"},\"range\":[46,47]},{\"type\":{\"label\":\"name\"},\"value\":\"calc\",\"range\":[47,51]},{\"type\":{\"label\":\".\"},\"range\":[51,52]},{\"type\":{\"label\":\"name\"},\"value\":\"sum\",\"range\":[52,55]},{\"type\":{\"label\":\"(\"},\"range\":[55,56]},{\"type\":{\"label\":\"name\"},\"value\":\"one\",\"range\":[56,59]},{\"type\":{\"label\":\",\"},\"range\":[59,60]},{\"type\":{\"label\":\"name\"},\"value\":\"two\",\"range\":[61,64]},{\"type\":{\"label\":\",\"},\"range\":[64,65]},{\"type\":{\"label\":\"name\"},\"value\":\"three\",\"range\":[66,71]},{\"type\":{\"label\":\")\"},\"range\":[71,72]},{\"type\":{\"label\":\")\"},\"range\":[72,73]}]",
   visitorKeys: _powerAssertVisitorKeys
-}), _rec12._expr(_rec12._capt(_rec12._capt(_rec12._capt(math, 'arguments/1/callee/object/object').calc, 'arguments/1/callee/object').sum(_rec12._capt(one, 'arguments/1/arguments/0'), _rec12._capt(two, 'arguments/1/arguments/1'), _rec12._capt(three, 'arguments/1/arguments/2')), 'arguments/1'), {
-  content: 'assert.strictEqual(three * (seven * ten), math.calc.sum(one, two, three))',
-  filepath: 'test/fixtures/CallExpression/fixture.js',
+}), _rec12._expr(_rec12._capt(_rec12._capt(_rec12._capt(math, "arguments/1/callee/object/object").calc, "arguments/1/callee/object").sum(_rec12._capt(one, "arguments/1/arguments/0"), _rec12._capt(two, "arguments/1/arguments/1"), _rec12._capt(three, "arguments/1/arguments/2")), "arguments/1"), {
+  content: "assert.strictEqual(three * (seven * ten), math.calc.sum(one, two, three))",
+  filepath: "test/fixtures/CallExpression/fixture.js",
   line: 23,
-  ast: '{"type":"CallExpression","callee":{"type":"MemberExpression","object":{"type":"Identifier","name":"assert","range":[0,6]},"property":{"type":"Identifier","name":"strictEqual","range":[7,18]},"computed":false,"range":[0,18]},"arguments":[{"type":"BinaryExpression","operator":"*","left":{"type":"Identifier","name":"three","range":[19,24]},"right":{"type":"BinaryExpression","operator":"*","left":{"type":"Identifier","name":"seven","range":[28,33]},"right":{"type":"Identifier","name":"ten","range":[36,39]},"range":[28,39]},"range":[19,40]},{"type":"CallExpression","callee":{"type":"MemberExpression","object":{"type":"MemberExpression","object":{"type":"Identifier","name":"math","range":[42,46]},"property":{"type":"Identifier","name":"calc","range":[47,51]},"computed":false,"range":[42,51]},"property":{"type":"Identifier","name":"sum","range":[52,55]},"computed":false,"range":[42,55]},"arguments":[{"type":"Identifier","name":"one","range":[56,59]},{"type":"Identifier","name":"two","range":[61,64]},{"type":"Identifier","name":"three","range":[66,71]}],"range":[42,72]}],"range":[0,73]}',
-  tokens: '[{"type":{"label":"name"},"value":"assert","range":[0,6]},{"type":{"label":"."},"range":[6,7]},{"type":{"label":"name"},"value":"strictEqual","range":[7,18]},{"type":{"label":"("},"range":[18,19]},{"type":{"label":"name"},"value":"three","range":[19,24]},{"type":{"label":"*"},"value":"*","range":[25,26]},{"type":{"label":"("},"range":[27,28]},{"type":{"label":"name"},"value":"seven","range":[28,33]},{"type":{"label":"*"},"value":"*","range":[34,35]},{"type":{"label":"name"},"value":"ten","range":[36,39]},{"type":{"label":")"},"range":[39,40]},{"type":{"label":","},"range":[40,41]},{"type":{"label":"name"},"value":"math","range":[42,46]},{"type":{"label":"."},"range":[46,47]},{"type":{"label":"name"},"value":"calc","range":[47,51]},{"type":{"label":"."},"range":[51,52]},{"type":{"label":"name"},"value":"sum","range":[52,55]},{"type":{"label":"("},"range":[55,56]},{"type":{"label":"name"},"value":"one","range":[56,59]},{"type":{"label":","},"range":[59,60]},{"type":{"label":"name"},"value":"two","range":[61,64]},{"type":{"label":","},"range":[64,65]},{"type":{"label":"name"},"value":"three","range":[66,71]},{"type":{"label":")"},"range":[71,72]},{"type":{"label":")"},"range":[72,73]}]',
+  ast: "{\"type\":\"CallExpression\",\"callee\":{\"type\":\"MemberExpression\",\"object\":{\"type\":\"Identifier\",\"name\":\"assert\",\"range\":[0,6]},\"property\":{\"type\":\"Identifier\",\"name\":\"strictEqual\",\"range\":[7,18]},\"computed\":false,\"range\":[0,18]},\"arguments\":[{\"type\":\"BinaryExpression\",\"operator\":\"*\",\"left\":{\"type\":\"Identifier\",\"name\":\"three\",\"range\":[19,24]},\"right\":{\"type\":\"BinaryExpression\",\"operator\":\"*\",\"left\":{\"type\":\"Identifier\",\"name\":\"seven\",\"range\":[28,33]},\"right\":{\"type\":\"Identifier\",\"name\":\"ten\",\"range\":[36,39]},\"range\":[28,39]},\"range\":[19,40]},{\"type\":\"CallExpression\",\"callee\":{\"type\":\"MemberExpression\",\"object\":{\"type\":\"MemberExpression\",\"object\":{\"type\":\"Identifier\",\"name\":\"math\",\"range\":[42,46]},\"property\":{\"type\":\"Identifier\",\"name\":\"calc\",\"range\":[47,51]},\"computed\":false,\"range\":[42,51]},\"property\":{\"type\":\"Identifier\",\"name\":\"sum\",\"range\":[52,55]},\"computed\":false,\"range\":[42,55]},\"arguments\":[{\"type\":\"Identifier\",\"name\":\"one\",\"range\":[56,59]},{\"type\":\"Identifier\",\"name\":\"two\",\"range\":[61,64]},{\"type\":\"Identifier\",\"name\":\"three\",\"range\":[66,71]}],\"range\":[42,72]}],\"range\":[0,73]}",
+  tokens: "[{\"type\":{\"label\":\"name\"},\"value\":\"assert\",\"range\":[0,6]},{\"type\":{\"label\":\".\"},\"range\":[6,7]},{\"type\":{\"label\":\"name\"},\"value\":\"strictEqual\",\"range\":[7,18]},{\"type\":{\"label\":\"(\"},\"range\":[18,19]},{\"type\":{\"label\":\"name\"},\"value\":\"three\",\"range\":[19,24]},{\"type\":{\"label\":\"*\"},\"value\":\"*\",\"range\":[25,26]},{\"type\":{\"label\":\"(\"},\"range\":[27,28]},{\"type\":{\"label\":\"name\"},\"value\":\"seven\",\"range\":[28,33]},{\"type\":{\"label\":\"*\"},\"value\":\"*\",\"range\":[34,35]},{\"type\":{\"label\":\"name\"},\"value\":\"ten\",\"range\":[36,39]},{\"type\":{\"label\":\")\"},\"range\":[39,40]},{\"type\":{\"label\":\",\"},\"range\":[40,41]},{\"type\":{\"label\":\"name\"},\"value\":\"math\",\"range\":[42,46]},{\"type\":{\"label\":\".\"},\"range\":[46,47]},{\"type\":{\"label\":\"name\"},\"value\":\"calc\",\"range\":[47,51]},{\"type\":{\"label\":\".\"},\"range\":[51,52]},{\"type\":{\"label\":\"name\"},\"value\":\"sum\",\"range\":[52,55]},{\"type\":{\"label\":\"(\"},\"range\":[55,56]},{\"type\":{\"label\":\"name\"},\"value\":\"one\",\"range\":[56,59]},{\"type\":{\"label\":\",\"},\"range\":[59,60]},{\"type\":{\"label\":\"name\"},\"value\":\"two\",\"range\":[61,64]},{\"type\":{\"label\":\",\"},\"range\":[64,65]},{\"type\":{\"label\":\"name\"},\"value\":\"three\",\"range\":[66,71]},{\"type\":{\"label\":\")\"},\"range\":[71,72]},{\"type\":{\"label\":\")\"},\"range\":[72,73]}]",
   visitorKeys: _powerAssertVisitorKeys
 }));
diff --git a/test/fixtures/CallExpression/expected.js b/test/fixtures/CallExpression/expected.js
index d21dd57..c724789 100644
--- a/test/fixtures/CallExpression/expected.js
+++ b/test/fixtures/CallExpression/expected.js
@@ -14,72 +14,62 @@ var _powerAssertRecorder = function () { function PowerAssertRecorder() { this.c
     _rec11 = new _powerAssertRecorder(),
     _rec12 = new _powerAssertRecorder();
 
-assert(_rec._expr(_rec._capt(func(), 'arguments/0'), {
-  content: 'assert(func())',
-  filepath: 'test/fixtures/CallExpression/fixture.js',
+assert(_rec._expr(_rec._capt(func(), "arguments/0"), {
+  content: "assert(func())",
+  filepath: "test/fixtures/CallExpression/fixture.js",
   line: 3
 }));
-
-assert(_rec2._expr(_rec2._capt(_rec2._capt(obj, 'arguments/0/callee/object').age(), 'arguments/0'), {
-  content: 'assert(obj.age())',
-  filepath: 'test/fixtures/CallExpression/fixture.js',
+assert(_rec2._expr(_rec2._capt(_rec2._capt(obj, "arguments/0/callee/object").age(), "arguments/0"), {
+  content: "assert(obj.age())",
+  filepath: "test/fixtures/CallExpression/fixture.js",
   line: 5
 }));
-
-assert(_rec3._expr(_rec3._capt(isFalsy(_rec3._capt(positiveInt, 'arguments/0/arguments/0')), 'arguments/0'), {
-  content: 'assert(isFalsy(positiveInt))',
-  filepath: 'test/fixtures/CallExpression/fixture.js',
+assert(_rec3._expr(_rec3._capt(isFalsy(_rec3._capt(positiveInt, "arguments/0/arguments/0")), "arguments/0"), {
+  content: "assert(isFalsy(positiveInt))",
+  filepath: "test/fixtures/CallExpression/fixture.js",
   line: 7
 }));
-
-assert(_rec4._expr(_rec4._capt(_rec4._capt(foo, 'arguments/0/callee/object')[_rec4._capt(propName, 'arguments/0/callee/property')](), 'arguments/0'), {
-  content: 'assert(foo[propName]())',
-  filepath: 'test/fixtures/CallExpression/fixture.js',
+assert(_rec4._expr(_rec4._capt(_rec4._capt(foo, "arguments/0/callee/object")[_rec4._capt(propName, "arguments/0/callee/property")](), "arguments/0"), {
+  content: "assert(foo[propName]())",
+  filepath: "test/fixtures/CallExpression/fixture.js",
   line: 9
 }));
-
-assert(_rec5._expr(_rec5._capt(_rec5._capt(foo, 'arguments/0/callee/object')[_rec5._capt(_rec5._capt(hoge, 'arguments/0/callee/property/object')[_rec5._capt(_rec5._capt(fuga, 'arguments/0/callee/property/property/object')[_rec5._capt(piyo, 'arguments/0/callee/property/property/property')], 'arguments/0/callee/property/property')], 'arguments/0/callee/property')](), 'arguments/0'), {
-  content: 'assert(foo[hoge[fuga[piyo]]]())',
-  filepath: 'test/fixtures/CallExpression/fixture.js',
+assert(_rec5._expr(_rec5._capt(_rec5._capt(foo, "arguments/0/callee/object")[_rec5._capt(_rec5._capt(hoge, "arguments/0/callee/property/object")[_rec5._capt(_rec5._capt(fuga, "arguments/0/callee/property/property/object")[_rec5._capt(piyo, "arguments/0/callee/property/property/property")], "arguments/0/callee/property/property")], "arguments/0/callee/property")](), "arguments/0"), {
+  content: "assert(foo[hoge[fuga[piyo]]]())",
+  filepath: "test/fixtures/CallExpression/fixture.js",
   line: 11
 }));
-
-assert(_rec6._expr(_rec6._capt(_rec6._capt(sum(_rec6._capt(one, 'arguments/0/left/arguments/0'), _rec6._capt(two, 'arguments/0/left/arguments/1'), _rec6._capt(three, 'arguments/0/left/arguments/2')), 'arguments/0/left') === _rec6._capt(seven, 'arguments/0/right'), 'arguments/0'), {
-  content: 'assert(sum(one, two, three) === seven)',
-  filepath: 'test/fixtures/CallExpression/fixture.js',
+assert(_rec6._expr(_rec6._capt(_rec6._capt(sum(_rec6._capt(one, "arguments/0/left/arguments/0"), _rec6._capt(two, "arguments/0/left/arguments/1"), _rec6._capt(three, "arguments/0/left/arguments/2")), "arguments/0/left") === _rec6._capt(seven, "arguments/0/right"), "arguments/0"), {
+  content: "assert(sum(one, two, three) === seven)",
+  filepath: "test/fixtures/CallExpression/fixture.js",
   line: 13
 }));
-
-assert(_rec7._expr(_rec7._capt(_rec7._capt(sum(_rec7._capt(sum(_rec7._capt(one, 'arguments/0/left/arguments/0/arguments/0'), _rec7._capt(two, 'arguments/0/left/arguments/0/arguments/1')), 'arguments/0/left/arguments/0'), _rec7._capt(three, 'arguments/0/left/arguments/1')), 'arguments/0/left') === _rec7._capt(sum(_rec7._capt(sum(_rec7._capt(two, 'arguments/0/right/arguments/0/arguments/0'), _rec7._capt(three, 'arguments/0/right/arguments/0/arguments/1')), 'arguments/0/right/arguments/0'), _rec7._capt(seven, 'arguments/0/right/arguments/1')), 'arguments/0/right'), 'arguments/0'), {
-  content: 'assert(sum(sum(one, two), three) === sum(sum(two, three), seven))',
-  filepath: 'test/fixtures/CallExpression/fixture.js',
+assert(_rec7._expr(_rec7._capt(_rec7._capt(sum(_rec7._capt(sum(_rec7._capt(one, "arguments/0/left/arguments/0/arguments/0"), _rec7._capt(two, "arguments/0/left/arguments/0/arguments/1")), "arguments/0/left/arguments/0"), _rec7._capt(three, "arguments/0/left/arguments/1")), "arguments/0/left") === _rec7._capt(sum(_rec7._capt(sum(_rec7._capt(two, "arguments/0/right/arguments/0/arguments/0"), _rec7._capt(three, "arguments/0/right/arguments/0/arguments/1")), "arguments/0/right/arguments/0"), _rec7._capt(seven, "arguments/0/right/arguments/1")), "arguments/0/right"), "arguments/0"), {
+  content: "assert(sum(sum(one, two), three) === sum(sum(two, three), seven))",
+  filepath: "test/fixtures/CallExpression/fixture.js",
   line: 15
 }));
-
-assert(_rec8._expr(_rec8._capt(_rec8._capt(_rec8._capt(_rec8._capt(math, 'arguments/0/left/callee/object/object').calc, 'arguments/0/left/callee/object').sum(_rec8._capt(one, 'arguments/0/left/arguments/0'), _rec8._capt(two, 'arguments/0/left/arguments/1'), _rec8._capt(three, 'arguments/0/left/arguments/2')), 'arguments/0/left') === _rec8._capt(seven, 'arguments/0/right'), 'arguments/0'), {
-  content: 'assert(math.calc.sum(one, two, three) === seven)',
-  filepath: 'test/fixtures/CallExpression/fixture.js',
+assert(_rec8._expr(_rec8._capt(_rec8._capt(_rec8._capt(_rec8._capt(math, "arguments/0/left/callee/object/object").calc, "arguments/0/left/callee/object").sum(_rec8._capt(one, "arguments/0/left/arguments/0"), _rec8._capt(two, "arguments/0/left/arguments/1"), _rec8._capt(three, "arguments/0/left/arguments/2")), "arguments/0/left") === _rec8._capt(seven, "arguments/0/right"), "arguments/0"), {
+  content: "assert(math.calc.sum(one, two, three) === seven)",
+  filepath: "test/fixtures/CallExpression/fixture.js",
   line: 17
 }));
-
-assert(_rec9._expr(_rec9._capt(_rec9._capt(_rec9._capt(three, 'arguments/0/left/left') * _rec9._capt(_rec9._capt(seven, 'arguments/0/left/right/left') * _rec9._capt(ten, 'arguments/0/left/right/right'), 'arguments/0/left/right'), 'arguments/0/left') === _rec9._capt(three, 'arguments/0/right'), 'arguments/0'), {
-  content: 'assert(three * (seven * ten) === three)',
-  filepath: 'test/fixtures/CallExpression/fixture.js',
+assert(_rec9._expr(_rec9._capt(_rec9._capt(_rec9._capt(three, "arguments/0/left/left") * _rec9._capt(_rec9._capt(seven, "arguments/0/left/right/left") * _rec9._capt(ten, "arguments/0/left/right/right"), "arguments/0/left/right"), "arguments/0/left") === _rec9._capt(three, "arguments/0/right"), "arguments/0"), {
+  content: "assert(three * (seven * ten) === three)",
+  filepath: "test/fixtures/CallExpression/fixture.js",
   line: 19
 }));
-
-assert(_rec10._expr(_rec10._capt(!_rec10._capt(concat(_rec10._capt(fuga, 'arguments/0/argument/arguments/0'), _rec10._capt(piyo, 'arguments/0/argument/arguments/1')), 'arguments/0/argument'), 'arguments/0'), {
-  content: 'assert(!concat(fuga, piyo))',
-  filepath: 'test/fixtures/CallExpression/fixture.js',
+assert(_rec10._expr(_rec10._capt(!_rec10._capt(concat(_rec10._capt(fuga, "arguments/0/argument/arguments/0"), _rec10._capt(piyo, "arguments/0/argument/arguments/1")), "arguments/0/argument"), "arguments/0"), {
+  content: "assert(!concat(fuga, piyo))",
+  filepath: "test/fixtures/CallExpression/fixture.js",
   line: 21
 }));
-
-assert.strictEqual(_rec11._expr(_rec11._capt(_rec11._capt(three, 'arguments/0/left') * _rec11._capt(_rec11._capt(seven, 'arguments/0/right/left') * _rec11._capt(ten, 'arguments/0/right/right'), 'arguments/0/right'), 'arguments/0'), {
-  content: 'assert.strictEqual(three * (seven * ten), math.calc.sum(one, two, three))',
-  filepath: 'test/fixtures/CallExpression/fixture.js',
+assert.strictEqual(_rec11._expr(_rec11._capt(_rec11._capt(three, "arguments/0/left") * _rec11._capt(_rec11._capt(seven, "arguments/0/right/left") * _rec11._capt(ten, "arguments/0/right/right"), "arguments/0/right"), "arguments/0"), {
+  content: "assert.strictEqual(three * (seven * ten), math.calc.sum(one, two, three))",
+  filepath: "test/fixtures/CallExpression/fixture.js",
   line: 23
-}), _rec12._expr(_rec12._capt(_rec12._capt(_rec12._capt(math, 'arguments/1/callee/object/object').calc, 'arguments/1/callee/object').sum(_rec12._capt(one, 'arguments/1/arguments/0'), _rec12._capt(two, 'arguments/1/arguments/1'), _rec12._capt(three, 'arguments/1/arguments/2')), 'arguments/1'), {
-  content: 'assert.strictEqual(three * (seven * ten), math.calc.sum(one, two, three))',
-  filepath: 'test/fixtures/CallExpression/fixture.js',
+}), _rec12._expr(_rec12._capt(_rec12._capt(_rec12._capt(math, "arguments/1/callee/object/object").calc, "arguments/1/callee/object").sum(_rec12._capt(one, "arguments/1/arguments/0"), _rec12._capt(two, "arguments/1/arguments/1"), _rec12._capt(three, "arguments/1/arguments/2")), "arguments/1"), {
+  content: "assert.strictEqual(three * (seven * ten), math.calc.sum(one, two, three))",
+  filepath: "test/fixtures/CallExpression/fixture.js",
   line: 23
 }));
diff --git a/test/fixtures/ClassExpression/expected-presets-es2015.js b/test/fixtures/ClassExpression/expected-presets-es2015.js
index 3fd1ad0..b6f60ff 100644
--- a/test/fixtures/ClassExpression/expected-presets-es2015.js
+++ b/test/fixtures/ClassExpression/expected-presets-es2015.js
@@ -1,18 +1,24 @@
 'use strict';
 
-var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();
+var _powerAssertVisitorKeys = "{\"ArrayExpression\":[\"elements\"],\"AssignmentExpression\":[\"left\",\"right\"],\"BinaryExpression\":[\"left\",\"right\"],\"Directive\":[\"value\"],\"DirectiveLiteral\":[],\"BlockStatement\":[\"directives\",\"body\"],\"BreakStatement\":[\"label\"],\"CallExpression\":[\"callee\",\"arguments\",\"typeParameters\"],\"CatchClause\":[\"param\",\"body\"],\"ConditionalExpression\":[\"test\",\"consequent\",\"alternate\"],\"ContinueStatement\":[\"label\"],\"DebuggerStatement\":[],\"DoWhileStatement\":[\"test\",\"body\"],\"EmptyStatement\":[],\"ExpressionStatement\":[\"expression\"],\"File\":[\"program\"],\"ForInStatement\":[\"left\",\"right\",\"body\"],\"ForStatement\":[\"init\",\"test\",\"update\",\"body\"],\"FunctionDeclaration\":[\"id\",\"params\",\"body\",\"returnType\",\"typeParameters\"],\"FunctionExpression\":[\"id\",\"params\",\"body\",\"returnType\",\"typeParameters\"],\"Identifier\":[\"typeAnnotation\"],\"IfStatement\":[\"test\",\"consequent\",\"alternate\"],\"LabeledStatement\":[\"label\",\"body\"],\"StringLiteral\":[],\"NumericLiteral\":[],\"NullLiteral\":[],\"BooleanLiteral\":[],\"RegExpLiteral\":[],\"LogicalExpression\":[\"left\",\"right\"],\"MemberExpression\":[\"object\",\"property\"],\"NewExpression\":[\"callee\",\"arguments\",\"typeParameters\"],\"Program\":[\"directives\",\"body\"],\"ObjectExpression\":[\"properties\"],\"ObjectMethod\":[\"key\",\"params\",\"body\",\"decorators\",\"returnType\",\"typeParameters\"],\"ObjectProperty\":[\"key\",\"value\",\"decorators\"],\"RestElement\":[\"argument\",\"typeAnnotation\"],\"ReturnStatement\":[\"argument\"],\"SequenceExpression\":[\"expressions\"],\"SwitchCase\":[\"test\",\"consequent\"],\"SwitchStatement\":[\"discriminant\",\"cases\"],\"ThisExpression\":[],\"ThrowStatement\":[\"argument\"],\"TryStatement\":[\"block\",\"handler\",\"finalizer\"],\"UnaryExpression\":[\"argument\"],\"UpdateExpression\":[\"argument\"],\"VariableDeclaration\":[\"declarations\"],\"VariableDeclarator\":[\"id\",\"init\"],\"WhileStatement\":[\"test\",\"body\"],\"WithStatement\":[\"object\",\"body\"],\"AssignmentPattern\":[\"left\",\"right\"],\"ArrayPattern\":[\"elements\",\"typeAnnotation\"],\"ArrowFunctionExpression\":[\"params\",\"body\",\"returnType\",\"typeParameters\"],\"ClassBody\":[\"body\"],\"ClassDeclaration\":[\"id\",\"body\",\"superClass\",\"mixins\",\"typeParameters\",\"superTypeParameters\",\"implements\",\"decorators\"],\"ClassExpression\":[\"id\",\"body\",\"superClass\",\"mixins\",\"typeParameters\",\"superTypeParameters\",\"implements\",\"decorators\"],\"ExportAllDeclaration\":[\"source\"],\"ExportDefaultDeclaration\":[\"declaration\"],\"ExportNamedDeclaration\":[\"declaration\",\"specifiers\",\"source\"],\"ExportSpecifier\":[\"local\",\"exported\"],\"ForOfStatement\":[\"left\",\"right\",\"body\"],\"ImportDeclaration\":[\"specifiers\",\"source\"],\"ImportDefaultSpecifier\":[\"local\"],\"ImportNamespaceSpecifier\":[\"local\"],\"ImportSpecifier\":[\"local\",\"imported\"],\"MetaProperty\":[\"meta\",\"property\"],\"ClassMethod\":[\"key\",\"params\",\"body\",\"decorators\",\"returnType\",\"typeParameters\"],\"ObjectPattern\":[\"properties\",\"typeAnnotation\"],\"SpreadElement\":[\"argument\"],\"Super\":[],\"TaggedTemplateExpression\":[\"tag\",\"quasi\"],\"TemplateElement\":[],\"TemplateLiteral\":[\"quasis\",\"expressions\"],\"YieldExpression\":[\"argument\"],\"AnyTypeAnnotation\":[],\"ArrayTypeAnnotation\":[\"elementType\"],\"BooleanTypeAnnotation\":[],\"BooleanLiteralTypeAnnotation\":[],\"NullLiteralTypeAnnotation\":[],\"ClassImplements\":[\"id\",\"typeParameters\"],\"DeclareClass\":[\"id\",\"typeParameters\",\"extends\",\"body\"],\"DeclareFunction\":[\"id\"],\"DeclareInterface\":[\"id\",\"typeParameters\",\"extends\",\"body\"],\"DeclareModule\":[\"id\",\"body\"],\"DeclareModuleExports\":[\"typeAnnotation\"],\"DeclareTypeAlias\":[\"id\",\"typeParameters\",\"right\"],\"DeclareOpaqueType\":[\"id\",\"typeParameters\",\"supertype\"],\"DeclareVariable\":[\"id\"],\"DeclareExportDeclaration\":[\"declaration\",\"specifiers\",\"source\"],\"DeclareExportAllDeclaration\":[\"source\"],\"DeclaredPredicate\":[\"value\"],\"ExistsTypeAnnotation\":[],\"FunctionTypeAnnotation\":[\"typeParameters\",\"params\",\"rest\",\"returnType\"],\"FunctionTypeParam\":[\"name\",\"typeAnnotation\"],\"GenericTypeAnnotation\":[\"id\",\"typeParameters\"],\"InferredPredicate\":[],\"InterfaceExtends\":[\"id\",\"typeParameters\"],\"InterfaceDeclaration\":[\"id\",\"typeParameters\",\"extends\",\"body\"],\"IntersectionTypeAnnotation\":[\"types\"],\"MixedTypeAnnotation\":[],\"EmptyTypeAnnotation\":[],\"NullableTypeAnnotation\":[\"typeAnnotation\"],\"NumberLiteralTypeAnnotation\":[],\"NumberTypeAnnotation\":[],\"ObjectTypeAnnotation\":[\"properties\",\"indexers\",\"callProperties\"],\"ObjectTypeCallProperty\":[\"value\"],\"ObjectTypeIndexer\":[\"id\",\"key\",\"value\"],\"ObjectTypeProperty\":[\"key\",\"value\"],\"ObjectTypeSpreadProperty\":[\"argument\"],\"OpaqueType\":[\"id\",\"typeParameters\",\"supertype\",\"impltype\"],\"QualifiedTypeIdentifier\":[\"id\",\"qualification\"],\"StringLiteralTypeAnnotation\":[],\"StringTypeAnnotation\":[],\"ThisTypeAnnotation\":[],\"TupleTypeAnnotation\":[\"types\"],\"TypeofTypeAnnotation\":[\"argument\"],\"TypeAlias\":[\"id\",\"typeParameters\",\"right\"],\"TypeAnnotation\":[\"typeAnnotation\"],\"TypeCastExpression\":[\"expression\",\"typeAnnotation\"],\"TypeParameter\":[\"bound\",\"default\"],\"TypeParameterDeclaration\":[\"params\"],\"TypeParameterInstantiation\":[\"params\"],\"UnionTypeAnnotation\":[\"types\"],\"VoidTypeAnnotation\":[],\"JSXAttribute\":[\"name\",\"value\"],\"JSXClosingElement\":[\"name\"],\"JSXElement\":[\"openingElement\",\"children\",\"closingElement\"],\"JSXEmptyExpression\":[],\"JSXExpressionContainer\":[\"expression\"],\"JSXSpreadChild\":[\"expression\"],\"JSXIdentifier\":[],\"JSXMemberExpression\":[\"object\",\"property\"],\"JSXNamespacedName\":[\"namespace\",\"name\"],\"JSXOpeningElement\":[\"name\",\"attributes\"],\"JSXSpreadAttribute\":[\"argument\"],\"JSXText\":[],\"JSXFragment\":[\"openingFragment\",\"children\",\"closingFragment\"],\"JSXOpeningFragment\":[],\"JSXClosingFragment\":[],\"Noop\":[],\"ParenthesizedExpression\":[\"expression\"],\"AwaitExpression\":[\"argument\"],\"BindExpression\":[\"object\",\"callee\"],\"ClassProperty\":[\"key\",\"value\",\"typeAnnotation\",\"decorators\"],\"Import\":[],\"Decorator\":[\"expression\"],\"DoExpression\":[\"body\"],\"ExportDefaultSpecifier\":[\"exported\"],\"ExportNamespaceSpecifier\":[\"exported\"],\"TSParameterProperty\":[\"parameter\"],\"TSDeclareFunction\":[\"id\",\"typeParameters\",\"params\",\"returnType\"],\"TSDeclareMethod\":[\"decorators\",\"key\",\"typeParameters\",\"params\",\"returnType\"],\"TSQualifiedName\":[\"left\",\"right\"],\"TSCallSignatureDeclaration\":[\"typeParameters\",\"parameters\",\"typeAnnotation\"],\"TSConstructSignatureDeclaration\":[\"typeParameters\",\"parameters\",\"typeAnnotation\"],\"TSPropertySignature\":[\"key\",\"typeAnnotation\",\"initializer\"],\"TSMethodSignature\":[\"key\",\"typeParameters\",\"parameters\",\"typeAnnotation\"],\"TSIndexSignature\":[\"parameters\",\"typeAnnotation\"],\"TSAnyKeyword\":[],\"TSNumberKeyword\":[],\"TSObjectKeyword\":[],\"TSBooleanKeyword\":[],\"TSStringKeyword\":[],\"TSSymbolKeyword\":[],\"TSVoidKeyword\":[],\"TSUndefinedKeyword\":[],\"TSNullKeyword\":[],\"TSNeverKeyword\":[],\"TSThisType\":[],\"TSFunctionType\":[\"typeParameters\",\"typeAnnotation\"],\"TSConstructorType\":[\"typeParameters\",\"typeAnnotation\"],\"TSTypeReference\":[\"typeName\",\"typeParameters\"],\"TSTypePredicate\":[\"parameterName\",\"typeAnnotation\"],\"TSTypeQuery\":[\"exprName\"],\"TSTypeLiteral\":[\"members\"],\"TSArrayType\":[\"elementType\"],\"TSTupleType\":[\"elementTypes\"],\"TSUnionType\":[\"types\"],\"TSIntersectionType\":[\"types\"],\"TSParenthesizedType\":[\"typeAnnotation\"],\"TSTypeOperator\":[\"typeAnnotation\"],\"TSIndexedAccessType\":[\"objectType\",\"indexType\"],\"TSMappedType\":[\"typeParameter\",\"typeAnnotation\"],\"TSLiteralType\":[\"literal\"],\"TSExpressionWithTypeArguments\":[\"expression\",\"typeParameters\"],\"TSInterfaceDeclaration\":[\"id\",\"typeParameters\",\"extends\",\"body\"],\"TSInterfaceBody\":[\"body\"],\"TSTypeAliasDeclaration\":[\"id\",\"typeParameters\",\"typeAnnotation\"],\"TSAsExpression\":[\"expression\",\"typeAnnotation\"],\"TSTypeAssertion\":[\"typeAnnotation\",\"expression\"],\"TSEnumDeclaration\":[\"id\",\"members\"],\"TSEnumMember\":[\"id\",\"initializer\"],\"TSModuleDeclaration\":[\"id\",\"body\"],\"TSModuleBlock\":[\"body\"],\"TSImportEqualsDeclaration\":[\"id\",\"moduleReference\"],\"TSExternalModuleReference\":[\"expression\"],\"TSNonNullExpression\":[\"expression\"],\"TSExportAssignment\":[\"expression\"],\"TSNamespaceExportDeclaration\":[\"id\"],\"TSTypeAnnotation\":[\"typeAnnotation\"],\"TSTypeParameterInstantiation\":[\"params\"],\"TSTypeParameterDeclaration\":[\"params\"],\"TSTypeParameter\":[\"constraint\",\"default\"]}";
 
-var _powerAssertVisitorKeys = '{"ArrayExpression":["elements"],"AssignmentExpression":["left","right"],"BinaryExpression":["left","right"],"Directive":["value"],"DirectiveLiteral":[],"BlockStatement":["directives","body"],"BreakStatement":["label"],"CallExpression":["callee","arguments"],"CatchClause":["param","body"],"ConditionalExpression":["test","consequent","alternate"],"ContinueStatement":["label"],"DebuggerStatement":[],"DoWhileStatement":["test","body"],"EmptyStatement":[],"ExpressionStatement":["expression"],"File":["program"],"ForInStatement":["left","right","body"],"ForStatement":["init","test","update","body"],"FunctionDeclaration":["id","params","body","returnType","typeParameters"],"FunctionExpression":["id","params","body","returnType","typeParameters"],"Identifier":["typeAnnotation"],"IfStatement":["test","consequent","alternate"],"LabeledStatement":["label","body"],"StringLiteral":[],"NumericLiteral":[],"NullLiteral":[],"BooleanLiteral":[],"RegExpLiteral":[],"LogicalExpression":["left","right"],"MemberExpression":["object","property"],"NewExpression":["callee","arguments"],"Program":["directives","body"],"ObjectExpression":["properties"],"ObjectMethod":["key","params","body","decorators","returnType","typeParameters"],"ObjectProperty":["key","value","decorators"],"RestElement":["argument","typeAnnotation"],"ReturnStatement":["argument"],"SequenceExpression":["expressions"],"SwitchCase":["test","consequent"],"SwitchStatement":["discriminant","cases"],"ThisExpression":[],"ThrowStatement":["argument"],"TryStatement":["block","handler","finalizer"],"UnaryExpression":["argument"],"UpdateExpression":["argument"],"VariableDeclaration":["declarations"],"VariableDeclarator":["id","init"],"WhileStatement":["test","body"],"WithStatement":["object","body"],"AssignmentPattern":["left","right"],"ArrayPattern":["elements","typeAnnotation"],"ArrowFunctionExpression":["params","body","returnType","typeParameters"],"ClassBody":["body"],"ClassDeclaration":["id","body","superClass","mixins","typeParameters","superTypeParameters","implements","decorators"],"ClassExpression":["id","body","superClass","mixins","typeParameters","superTypeParameters","implements","decorators"],"ExportAllDeclaration":["source"],"ExportDefaultDeclaration":["declaration"],"ExportNamedDeclaration":["declaration","specifiers","source"],"ExportSpecifier":["local","exported"],"ForOfStatement":["left","right","body"],"ImportDeclaration":["specifiers","source"],"ImportDefaultSpecifier":["local"],"ImportNamespaceSpecifier":["local"],"ImportSpecifier":["local","imported"],"MetaProperty":["meta","property"],"ClassMethod":["key","params","body","decorators","returnType","typeParameters"],"ObjectPattern":["properties","typeAnnotation"],"SpreadElement":["argument"],"Super":[],"TaggedTemplateExpression":["tag","quasi"],"TemplateElement":[],"TemplateLiteral":["quasis","expressions"],"YieldExpression":["argument"],"AnyTypeAnnotation":[],"ArrayTypeAnnotation":["elementType"],"BooleanTypeAnnotation":[],"BooleanLiteralTypeAnnotation":[],"NullLiteralTypeAnnotation":[],"ClassImplements":["id","typeParameters"],"ClassProperty":["key","value","typeAnnotation","decorators"],"DeclareClass":["id","typeParameters","extends","body"],"DeclareFunction":["id"],"DeclareInterface":["id","typeParameters","extends","body"],"DeclareModule":["id","body"],"DeclareModuleExports":["typeAnnotation"],"DeclareTypeAlias":["id","typeParameters","right"],"DeclareOpaqueType":["id","typeParameters","supertype"],"DeclareVariable":["id"],"DeclareExportDeclaration":["declaration","specifiers","source"],"ExistentialTypeParam":[],"FunctionTypeAnnotation":["typeParameters","params","rest","returnType"],"FunctionTypeParam":["name","typeAnnotation"],"GenericTypeAnnotation":["id","typeParameters"],"InterfaceExtends":["id","typeParameters"],"InterfaceDeclaration":["id","typeParameters","extends","body"],"IntersectionTypeAnnotation":["types"],"MixedTypeAnnotation":[],"EmptyTypeAnnotation":[],"NullableTypeAnnotation":["typeAnnotation"],"NumericLiteralTypeAnnotation":[],"NumberTypeAnnotation":[],"StringLiteralTypeAnnotation":[],"StringTypeAnnotation":[],"ThisTypeAnnotation":[],"TupleTypeAnnotation":["types"],"TypeofTypeAnnotation":["argument"],"TypeAlias":["id","typeParameters","right"],"OpaqueType":["id","typeParameters","impltype","supertype"],"TypeAnnotation":["typeAnnotation"],"TypeCastExpression":["expression","typeAnnotation"],"TypeParameter":["bound"],"TypeParameterDeclaration":["params"],"TypeParameterInstantiation":["params"],"ObjectTypeAnnotation":["properties","indexers","callProperties"],"ObjectTypeCallProperty":["value"],"ObjectTypeIndexer":["id","key","value"],"ObjectTypeProperty":["key","value"],"ObjectTypeSpreadProperty":["argument"],"QualifiedTypeIdentifier":["id","qualification"],"UnionTypeAnnotation":["types"],"VoidTypeAnnotation":[],"JSXAttribute":["name","value"],"JSXClosingElement":["name"],"JSXElement":["openingElement","children","closingElement"],"JSXEmptyExpression":[],"JSXExpressionContainer":["expression"],"JSXSpreadChild":["expression"],"JSXIdentifier":[],"JSXMemberExpression":["object","property"],"JSXNamespacedName":["namespace","name"],"JSXOpeningElement":["name","attributes"],"JSXSpreadAttribute":["argument"],"JSXText":[],"Noop":[],"ParenthesizedExpression":["expression"],"AwaitExpression":["argument"],"ForAwaitStatement":["left","right","body"],"BindExpression":["object","callee"],"Import":[],"Decorator":["expression"],"DoExpression":["body"],"ExportDefaultSpecifier":["exported"],"ExportNamespaceSpecifier":["exported"],"RestProperty":["argument"],"SpreadProperty":["argument"]}';
+function _instanceof(left, right) { if (right != null && typeof Symbol !== "undefined" && right[Symbol.hasInstance]) { return right[Symbol.hasInstance](left); } else { return left instanceof right; } }
 
-function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
+function _classCallCheck(instance, Constructor) { if (!_instanceof(instance, Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
 
-assert(function () {
+function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }
+
+function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }
+
+assert(
+/*#__PURE__*/
+function () {
   function Me() {
     _classCallCheck(this, Me);
   }
 
   _createClass(Me, [{
-    key: 'getClassName',
+    key: "getClassName",
     value: function getClassName() {
       return foo + Me.name;
     }
diff --git a/test/fixtures/ClassExpression/expected.js b/test/fixtures/ClassExpression/expected.js
index e674682..15cab32 100644
--- a/test/fixtures/ClassExpression/expected.js
+++ b/test/fixtures/ClassExpression/expected.js
@@ -4,4 +4,5 @@ assert(class Me {
   getClassName() {
     return foo + Me.name;
   }
+
 });
diff --git a/test/fixtures/CommentsInAssertion/expected.js b/test/fixtures/CommentsInAssertion/expected.js
index abd964c..7c80926 100644
--- a/test/fixtures/CommentsInAssertion/expected.js
+++ b/test/fixtures/CommentsInAssertion/expected.js
@@ -4,18 +4,15 @@ var _powerAssertRecorder = function () { function PowerAssertRecorder() { this.c
     _rec = new _powerAssertRecorder(),
     _rec2 = new _powerAssertRecorder();
 
-assert.equal(
-// first comment
-_rec._expr(_rec._capt(str, 'arguments/0'), {
-    content: 'assert.equal(str, anotherStr)',
-    filepath: 'test/fixtures/CommentsInAssertion/fixture.js',
-    line: 3
-}),
-// second comment
-_rec2._expr(_rec2._capt(anotherStr, 'arguments/1'), {
-    content: 'assert.equal(str, anotherStr)',
-    filepath: 'test/fixtures/CommentsInAssertion/fixture.js',
-    line: 3
-})
-// last comment
+assert.equal( // first comment
+_rec._expr(_rec._capt(str, "arguments/0"), {
+  content: "assert.equal(str, anotherStr)",
+  filepath: "test/fixtures/CommentsInAssertion/fixture.js",
+  line: 3
+}), // second comment
+_rec2._expr(_rec2._capt(anotherStr, "arguments/1"), {
+  content: "assert.equal(str, anotherStr)",
+  filepath: "test/fixtures/CommentsInAssertion/fixture.js",
+  line: 3
+}) // last comment
 );
diff --git a/test/fixtures/ConditionalExpression/expected-presets-es2015.js b/test/fixtures/ConditionalExpression/expected-presets-es2015.js
index d3755fc..5119eb0 100644
--- a/test/fixtures/ConditionalExpression/expected-presets-es2015.js
+++ b/test/fixtures/ConditionalExpression/expected-presets-es2015.js
@@ -1,8 +1,6 @@
 'use strict';
 
-var _typeof = typeof Symbol === "function" && typeof Symbol.iterator === "symbol" ? function (obj) { return typeof obj; } : function (obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; };
-
-var _powerAssertVisitorKeys = '{"ArrayExpression":["elements"],"AssignmentExpression":["left","right"],"BinaryExpression":["left","right"],"Directive":["value"],"DirectiveLiteral":[],"BlockStatement":["directives","body"],"BreakStatement":["label"],"CallExpression":["callee","arguments"],"CatchClause":["param","body"],"ConditionalExpression":["test","consequent","alternate"],"ContinueStatement":["label"],"DebuggerStatement":[],"DoWhileStatement":["test","body"],"EmptyStatement":[],"ExpressionStatement":["expression"],"File":["program"],"ForInStatement":["left","right","body"],"ForStatement":["init","test","update","body"],"FunctionDeclaration":["id","params","body","returnType","typeParameters"],"FunctionExpression":["id","params","body","returnType","typeParameters"],"Identifier":["typeAnnotation"],"IfStatement":["test","consequent","alternate"],"LabeledStatement":["label","body"],"StringLiteral":[],"NumericLiteral":[],"NullLiteral":[],"BooleanLiteral":[],"RegExpLiteral":[],"LogicalExpression":["left","right"],"MemberExpression":["object","property"],"NewExpression":["callee","arguments"],"Program":["directives","body"],"ObjectExpression":["properties"],"ObjectMethod":["key","params","body","decorators","returnType","typeParameters"],"ObjectProperty":["key","value","decorators"],"RestElement":["argument","typeAnnotation"],"ReturnStatement":["argument"],"SequenceExpression":["expressions"],"SwitchCase":["test","consequent"],"SwitchStatement":["discriminant","cases"],"ThisExpression":[],"ThrowStatement":["argument"],"TryStatement":["block","handler","finalizer"],"UnaryExpression":["argument"],"UpdateExpression":["argument"],"VariableDeclaration":["declarations"],"VariableDeclarator":["id","init"],"WhileStatement":["test","body"],"WithStatement":["object","body"],"AssignmentPattern":["left","right"],"ArrayPattern":["elements","typeAnnotation"],"ArrowFunctionExpression":["params","body","returnType","typeParameters"],"ClassBody":["body"],"ClassDeclaration":["id","body","superClass","mixins","typeParameters","superTypeParameters","implements","decorators"],"ClassExpression":["id","body","superClass","mixins","typeParameters","superTypeParameters","implements","decorators"],"ExportAllDeclaration":["source"],"ExportDefaultDeclaration":["declaration"],"ExportNamedDeclaration":["declaration","specifiers","source"],"ExportSpecifier":["local","exported"],"ForOfStatement":["left","right","body"],"ImportDeclaration":["specifiers","source"],"ImportDefaultSpecifier":["local"],"ImportNamespaceSpecifier":["local"],"ImportSpecifier":["local","imported"],"MetaProperty":["meta","property"],"ClassMethod":["key","params","body","decorators","returnType","typeParameters"],"ObjectPattern":["properties","typeAnnotation"],"SpreadElement":["argument"],"Super":[],"TaggedTemplateExpression":["tag","quasi"],"TemplateElement":[],"TemplateLiteral":["quasis","expressions"],"YieldExpression":["argument"],"AnyTypeAnnotation":[],"ArrayTypeAnnotation":["elementType"],"BooleanTypeAnnotation":[],"BooleanLiteralTypeAnnotation":[],"NullLiteralTypeAnnotation":[],"ClassImplements":["id","typeParameters"],"ClassProperty":["key","value","typeAnnotation","decorators"],"DeclareClass":["id","typeParameters","extends","body"],"DeclareFunction":["id"],"DeclareInterface":["id","typeParameters","extends","body"],"DeclareModule":["id","body"],"DeclareModuleExports":["typeAnnotation"],"DeclareTypeAlias":["id","typeParameters","right"],"DeclareOpaqueType":["id","typeParameters","supertype"],"DeclareVariable":["id"],"DeclareExportDeclaration":["declaration","specifiers","source"],"ExistentialTypeParam":[],"FunctionTypeAnnotation":["typeParameters","params","rest","returnType"],"FunctionTypeParam":["name","typeAnnotation"],"GenericTypeAnnotation":["id","typeParameters"],"InterfaceExtends":["id","typeParameters"],"InterfaceDeclaration":["id","typeParameters","extends","body"],"IntersectionTypeAnnotation":["types"],"MixedTypeAnnotation":[],"EmptyTypeAnnotation":[],"NullableTypeAnnotation":["typeAnnotation"],"NumericLiteralTypeAnnotation":[],"NumberTypeAnnotation":[],"StringLiteralTypeAnnotation":[],"StringTypeAnnotation":[],"ThisTypeAnnotation":[],"TupleTypeAnnotation":["types"],"TypeofTypeAnnotation":["argument"],"TypeAlias":["id","typeParameters","right"],"OpaqueType":["id","typeParameters","impltype","supertype"],"TypeAnnotation":["typeAnnotation"],"TypeCastExpression":["expression","typeAnnotation"],"TypeParameter":["bound"],"TypeParameterDeclaration":["params"],"TypeParameterInstantiation":["params"],"ObjectTypeAnnotation":["properties","indexers","callProperties"],"ObjectTypeCallProperty":["value"],"ObjectTypeIndexer":["id","key","value"],"ObjectTypeProperty":["key","value"],"ObjectTypeSpreadProperty":["argument"],"QualifiedTypeIdentifier":["id","qualification"],"UnionTypeAnnotation":["types"],"VoidTypeAnnotation":[],"JSXAttribute":["name","value"],"JSXClosingElement":["name"],"JSXElement":["openingElement","children","closingElement"],"JSXEmptyExpression":[],"JSXExpressionContainer":["expression"],"JSXSpreadChild":["expression"],"JSXIdentifier":[],"JSXMemberExpression":["object","property"],"JSXNamespacedName":["namespace","name"],"JSXOpeningElement":["name","attributes"],"JSXSpreadAttribute":["argument"],"JSXText":[],"Noop":[],"ParenthesizedExpression":["expression"],"AwaitExpression":["argument"],"ForAwaitStatement":["left","right","body"],"BindExpression":["object","callee"],"Import":[],"Decorator":["expression"],"DoExpression":["body"],"ExportDefaultSpecifier":["exported"],"ExportNamespaceSpecifier":["exported"],"RestProperty":["argument"],"SpreadProperty":["argument"]}',
+var _powerAssertVisitorKeys = "{\"ArrayExpression\":[\"elements\"],\"AssignmentExpression\":[\"left\",\"right\"],\"BinaryExpression\":[\"left\",\"right\"],\"Directive\":[\"value\"],\"DirectiveLiteral\":[],\"BlockStatement\":[\"directives\",\"body\"],\"BreakStatement\":[\"label\"],\"CallExpression\":[\"callee\",\"arguments\",\"typeParameters\"],\"CatchClause\":[\"param\",\"body\"],\"ConditionalExpression\":[\"test\",\"consequent\",\"alternate\"],\"ContinueStatement\":[\"label\"],\"DebuggerStatement\":[],\"DoWhileStatement\":[\"test\",\"body\"],\"EmptyStatement\":[],\"ExpressionStatement\":[\"expression\"],\"File\":[\"program\"],\"ForInStatement\":[\"left\",\"right\",\"body\"],\"ForStatement\":[\"init\",\"test\",\"update\",\"body\"],\"FunctionDeclaration\":[\"id\",\"params\",\"body\",\"returnType\",\"typeParameters\"],\"FunctionExpression\":[\"id\",\"params\",\"body\",\"returnType\",\"typeParameters\"],\"Identifier\":[\"typeAnnotation\"],\"IfStatement\":[\"test\",\"consequent\",\"alternate\"],\"LabeledStatement\":[\"label\",\"body\"],\"StringLiteral\":[],\"NumericLiteral\":[],\"NullLiteral\":[],\"BooleanLiteral\":[],\"RegExpLiteral\":[],\"LogicalExpression\":[\"left\",\"right\"],\"MemberExpression\":[\"object\",\"property\"],\"NewExpression\":[\"callee\",\"arguments\",\"typeParameters\"],\"Program\":[\"directives\",\"body\"],\"ObjectExpression\":[\"properties\"],\"ObjectMethod\":[\"key\",\"params\",\"body\",\"decorators\",\"returnType\",\"typeParameters\"],\"ObjectProperty\":[\"key\",\"value\",\"decorators\"],\"RestElement\":[\"argument\",\"typeAnnotation\"],\"ReturnStatement\":[\"argument\"],\"SequenceExpression\":[\"expressions\"],\"SwitchCase\":[\"test\",\"consequent\"],\"SwitchStatement\":[\"discriminant\",\"cases\"],\"ThisExpression\":[],\"ThrowStatement\":[\"argument\"],\"TryStatement\":[\"block\",\"handler\",\"finalizer\"],\"UnaryExpression\":[\"argument\"],\"UpdateExpression\":[\"argument\"],\"VariableDeclaration\":[\"declarations\"],\"VariableDeclarator\":[\"id\",\"init\"],\"WhileStatement\":[\"test\",\"body\"],\"WithStatement\":[\"object\",\"body\"],\"AssignmentPattern\":[\"left\",\"right\"],\"ArrayPattern\":[\"elements\",\"typeAnnotation\"],\"ArrowFunctionExpression\":[\"params\",\"body\",\"returnType\",\"typeParameters\"],\"ClassBody\":[\"body\"],\"ClassDeclaration\":[\"id\",\"body\",\"superClass\",\"mixins\",\"typeParameters\",\"superTypeParameters\",\"implements\",\"decorators\"],\"ClassExpression\":[\"id\",\"body\",\"superClass\",\"mixins\",\"typeParameters\",\"superTypeParameters\",\"implements\",\"decorators\"],\"ExportAllDeclaration\":[\"source\"],\"ExportDefaultDeclaration\":[\"declaration\"],\"ExportNamedDeclaration\":[\"declaration\",\"specifiers\",\"source\"],\"ExportSpecifier\":[\"local\",\"exported\"],\"ForOfStatement\":[\"left\",\"right\",\"body\"],\"ImportDeclaration\":[\"specifiers\",\"source\"],\"ImportDefaultSpecifier\":[\"local\"],\"ImportNamespaceSpecifier\":[\"local\"],\"ImportSpecifier\":[\"local\",\"imported\"],\"MetaProperty\":[\"meta\",\"property\"],\"ClassMethod\":[\"key\",\"params\",\"body\",\"decorators\",\"returnType\",\"typeParameters\"],\"ObjectPattern\":[\"properties\",\"typeAnnotation\"],\"SpreadElement\":[\"argument\"],\"Super\":[],\"TaggedTemplateExpression\":[\"tag\",\"quasi\"],\"TemplateElement\":[],\"TemplateLiteral\":[\"quasis\",\"expressions\"],\"YieldExpression\":[\"argument\"],\"AnyTypeAnnotation\":[],\"ArrayTypeAnnotation\":[\"elementType\"],\"BooleanTypeAnnotation\":[],\"BooleanLiteralTypeAnnotation\":[],\"NullLiteralTypeAnnotation\":[],\"ClassImplements\":[\"id\",\"typeParameters\"],\"DeclareClass\":[\"id\",\"typeParameters\",\"extends\",\"body\"],\"DeclareFunction\":[\"id\"],\"DeclareInterface\":[\"id\",\"typeParameters\",\"extends\",\"body\"],\"DeclareModule\":[\"id\",\"body\"],\"DeclareModuleExports\":[\"typeAnnotation\"],\"DeclareTypeAlias\":[\"id\",\"typeParameters\",\"right\"],\"DeclareOpaqueType\":[\"id\",\"typeParameters\",\"supertype\"],\"DeclareVariable\":[\"id\"],\"DeclareExportDeclaration\":[\"declaration\",\"specifiers\",\"source\"],\"DeclareExportAllDeclaration\":[\"source\"],\"DeclaredPredicate\":[\"value\"],\"ExistsTypeAnnotation\":[],\"FunctionTypeAnnotation\":[\"typeParameters\",\"params\",\"rest\",\"returnType\"],\"FunctionTypeParam\":[\"name\",\"typeAnnotation\"],\"GenericTypeAnnotation\":[\"id\",\"typeParameters\"],\"InferredPredicate\":[],\"InterfaceExtends\":[\"id\",\"typeParameters\"],\"InterfaceDeclaration\":[\"id\",\"typeParameters\",\"extends\",\"body\"],\"IntersectionTypeAnnotation\":[\"types\"],\"MixedTypeAnnotation\":[],\"EmptyTypeAnnotation\":[],\"NullableTypeAnnotation\":[\"typeAnnotation\"],\"NumberLiteralTypeAnnotation\":[],\"NumberTypeAnnotation\":[],\"ObjectTypeAnnotation\":[\"properties\",\"indexers\",\"callProperties\"],\"ObjectTypeCallProperty\":[\"value\"],\"ObjectTypeIndexer\":[\"id\",\"key\",\"value\"],\"ObjectTypeProperty\":[\"key\",\"value\"],\"ObjectTypeSpreadProperty\":[\"argument\"],\"OpaqueType\":[\"id\",\"typeParameters\",\"supertype\",\"impltype\"],\"QualifiedTypeIdentifier\":[\"id\",\"qualification\"],\"StringLiteralTypeAnnotation\":[],\"StringTypeAnnotation\":[],\"ThisTypeAnnotation\":[],\"TupleTypeAnnotation\":[\"types\"],\"TypeofTypeAnnotation\":[\"argument\"],\"TypeAlias\":[\"id\",\"typeParameters\",\"right\"],\"TypeAnnotation\":[\"typeAnnotation\"],\"TypeCastExpression\":[\"expression\",\"typeAnnotation\"],\"TypeParameter\":[\"bound\",\"default\"],\"TypeParameterDeclaration\":[\"params\"],\"TypeParameterInstantiation\":[\"params\"],\"UnionTypeAnnotation\":[\"types\"],\"VoidTypeAnnotation\":[],\"JSXAttribute\":[\"name\",\"value\"],\"JSXClosingElement\":[\"name\"],\"JSXElement\":[\"openingElement\",\"children\",\"closingElement\"],\"JSXEmptyExpression\":[],\"JSXExpressionContainer\":[\"expression\"],\"JSXSpreadChild\":[\"expression\"],\"JSXIdentifier\":[],\"JSXMemberExpression\":[\"object\",\"property\"],\"JSXNamespacedName\":[\"namespace\",\"name\"],\"JSXOpeningElement\":[\"name\",\"attributes\"],\"JSXSpreadAttribute\":[\"argument\"],\"JSXText\":[],\"JSXFragment\":[\"openingFragment\",\"children\",\"closingFragment\"],\"JSXOpeningFragment\":[],\"JSXClosingFragment\":[],\"Noop\":[],\"ParenthesizedExpression\":[\"expression\"],\"AwaitExpression\":[\"argument\"],\"BindExpression\":[\"object\",\"callee\"],\"ClassProperty\":[\"key\",\"value\",\"typeAnnotation\",\"decorators\"],\"Import\":[],\"Decorator\":[\"expression\"],\"DoExpression\":[\"body\"],\"ExportDefaultSpecifier\":[\"exported\"],\"ExportNamespaceSpecifier\":[\"exported\"],\"TSParameterProperty\":[\"parameter\"],\"TSDeclareFunction\":[\"id\",\"typeParameters\",\"params\",\"returnType\"],\"TSDeclareMethod\":[\"decorators\",\"key\",\"typeParameters\",\"params\",\"returnType\"],\"TSQualifiedName\":[\"left\",\"right\"],\"TSCallSignatureDeclaration\":[\"typeParameters\",\"parameters\",\"typeAnnotation\"],\"TSConstructSignatureDeclaration\":[\"typeParameters\",\"parameters\",\"typeAnnotation\"],\"TSPropertySignature\":[\"key\",\"typeAnnotation\",\"initializer\"],\"TSMethodSignature\":[\"key\",\"typeParameters\",\"parameters\",\"typeAnnotation\"],\"TSIndexSignature\":[\"parameters\",\"typeAnnotation\"],\"TSAnyKeyword\":[],\"TSNumberKeyword\":[],\"TSObjectKeyword\":[],\"TSBooleanKeyword\":[],\"TSStringKeyword\":[],\"TSSymbolKeyword\":[],\"TSVoidKeyword\":[],\"TSUndefinedKeyword\":[],\"TSNullKeyword\":[],\"TSNeverKeyword\":[],\"TSThisType\":[],\"TSFunctionType\":[\"typeParameters\",\"typeAnnotation\"],\"TSConstructorType\":[\"typeParameters\",\"typeAnnotation\"],\"TSTypeReference\":[\"typeName\",\"typeParameters\"],\"TSTypePredicate\":[\"parameterName\",\"typeAnnotation\"],\"TSTypeQuery\":[\"exprName\"],\"TSTypeLiteral\":[\"members\"],\"TSArrayType\":[\"elementType\"],\"TSTupleType\":[\"elementTypes\"],\"TSUnionType\":[\"types\"],\"TSIntersectionType\":[\"types\"],\"TSParenthesizedType\":[\"typeAnnotation\"],\"TSTypeOperator\":[\"typeAnnotation\"],\"TSIndexedAccessType\":[\"objectType\",\"indexType\"],\"TSMappedType\":[\"typeParameter\",\"typeAnnotation\"],\"TSLiteralType\":[\"literal\"],\"TSExpressionWithTypeArguments\":[\"expression\",\"typeParameters\"],\"TSInterfaceDeclaration\":[\"id\",\"typeParameters\",\"extends\",\"body\"],\"TSInterfaceBody\":[\"body\"],\"TSTypeAliasDeclaration\":[\"id\",\"typeParameters\",\"typeAnnotation\"],\"TSAsExpression\":[\"expression\",\"typeAnnotation\"],\"TSTypeAssertion\":[\"typeAnnotation\",\"expression\"],\"TSEnumDeclaration\":[\"id\",\"members\"],\"TSEnumMember\":[\"id\",\"initializer\"],\"TSModuleDeclaration\":[\"id\",\"body\"],\"TSModuleBlock\":[\"body\"],\"TSImportEqualsDeclaration\":[\"id\",\"moduleReference\"],\"TSExternalModuleReference\":[\"expression\"],\"TSNonNullExpression\":[\"expression\"],\"TSExportAssignment\":[\"expression\"],\"TSNamespaceExportDeclaration\":[\"id\"],\"TSTypeAnnotation\":[\"typeAnnotation\"],\"TSTypeParameterInstantiation\":[\"params\"],\"TSTypeParameterDeclaration\":[\"params\"],\"TSTypeParameter\":[\"constraint\",\"default\"]}",
     _powerAssertRecorder = function () { function PowerAssertRecorder() { this.captured = []; } PowerAssertRecorder.prototype._capt = function _capt(value, espath) { this.captured.push({ value: value, espath: espath }); return value; }; PowerAssertRecorder.prototype._expr = function _expr(value, source) { var capturedValues = this.captured; this.captured = []; return { powerAssertContext: { value: value, events: capturedValues }, source: source }; }; return PowerAssertRecorder; }(),
     _rec = new _powerAssertRecorder(),
     _rec2 = new _powerAssertRecorder(),
@@ -10,45 +8,44 @@ var _powerAssertVisitorKeys = '{"ArrayExpression":["elements"],"AssignmentExpres
     _rec4 = new _powerAssertRecorder(),
     _rec5 = new _powerAssertRecorder();
 
-assert(_rec._expr(_rec._capt(foo, 'arguments/0/test') ? _rec._capt(bar, 'arguments/0/consequent') : _rec._capt(baz, 'arguments/0/alternate'), {
-  content: 'assert(foo ? bar : baz)',
-  filepath: 'test/fixtures/ConditionalExpression/fixture.js',
+function _typeof(obj) { if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }
+
+assert(_rec._expr(_rec._capt(foo, "arguments/0/test") ? _rec._capt(bar, "arguments/0/consequent") : _rec._capt(baz, "arguments/0/alternate"), {
+  content: "assert(foo ? bar : baz)",
+  filepath: "test/fixtures/ConditionalExpression/fixture.js",
   line: 3,
-  ast: '{"type":"CallExpression","callee":{"type":"Identifier","name":"assert","range":[0,6]},"arguments":[{"type":"ConditionalExpression","test":{"type":"Identifier","name":"foo","range":[7,10]},"consequent":{"type":"Identifier","name":"bar","range":[13,16]},"alternate":{"type":"Identifier","name":"baz","range":[19,22]},"range":[7,22]}],"range":[0,23]}',
-  tokens: '[{"type":{"label":"name"},"value":"assert","range":[0,6]},{"type":{"label":"("},"range":[6,7]},{"type":{"label":"name"},"value":"foo","range":[7,10]},{"type":{"label":"?"},"range":[11,12]},{"type":{"label":"name"},"value":"bar","range":[13,16]},{"type":{"label":":"},"range":[17,18]},{"type":{"label":"name"},"value":"baz","range":[19,22]},{"type":{"label":")"},"range":[22,23]}]',
+  ast: "{\"type\":\"CallExpression\",\"callee\":{\"type\":\"Identifier\",\"name\":\"assert\",\"range\":[0,6]},\"arguments\":[{\"type\":\"ConditionalExpression\",\"test\":{\"type\":\"Identifier\",\"name\":\"foo\",\"range\":[7,10]},\"consequent\":{\"type\":\"Identifier\",\"name\":\"bar\",\"range\":[13,16]},\"alternate\":{\"type\":\"Identifier\",\"name\":\"baz\",\"range\":[19,22]},\"range\":[7,22]}],\"range\":[0,23]}",
+  tokens: "[{\"type\":{\"label\":\"name\"},\"value\":\"assert\",\"range\":[0,6]},{\"type\":{\"label\":\"(\"},\"range\":[6,7]},{\"type\":{\"label\":\"name\"},\"value\":\"foo\",\"range\":[7,10]},{\"type\":{\"label\":\"?\"},\"range\":[11,12]},{\"type\":{\"label\":\"name\"},\"value\":\"bar\",\"range\":[13,16]},{\"type\":{\"label\":\":\"},\"range\":[17,18]},{\"type\":{\"label\":\"name\"},\"value\":\"baz\",\"range\":[19,22]},{\"type\":{\"label\":\")\"},\"range\":[22,23]}]",
   visitorKeys: _powerAssertVisitorKeys
 }));
-
-assert(_rec2._expr(_rec2._capt(falsy, 'arguments/0/test') ? _rec2._capt(truthy, 'arguments/0/consequent') : _rec2._capt(truthy, 'arguments/0/alternate/test') ? _rec2._capt(anotherFalsy, 'arguments/0/alternate/consequent') : _rec2._capt(truthy, 'arguments/0/alternate/alternate'), {
-  content: 'assert(falsy ? truthy : truthy ? anotherFalsy : truthy)',
-  filepath: 'test/fixtures/ConditionalExpression/fixture.js',
+assert(_rec2._expr(_rec2._capt(falsy, "arguments/0/test") ? _rec2._capt(truthy, "arguments/0/consequent") : _rec2._capt(truthy, "arguments/0/alternate/test") ? _rec2._capt(anotherFalsy, "arguments/0/alternate/consequent") : _rec2._capt(truthy, "arguments/0/alternate/alternate"), {
+  content: "assert(falsy ? truthy : truthy ? anotherFalsy : truthy)",
+  filepath: "test/fixtures/ConditionalExpression/fixture.js",
   line: 5,
-  ast: '{"type":"CallExpression","callee":{"type":"Identifier","name":"assert","range":[0,6]},"arguments":[{"type":"ConditionalExpression","test":{"type":"Identifier","name":"falsy","range":[7,12]},"consequent":{"type":"Identifier","name":"truthy","range":[15,21]},"alternate":{"type":"ConditionalExpression","test":{"type":"Identifier","name":"truthy","range":[24,30]},"consequent":{"type":"Identifier","name":"anotherFalsy","range":[33,45]},"alternate":{"type":"Identifier","name":"truthy","range":[48,54]},"range":[24,54]},"range":[7,54]}],"range":[0,55]}',
-  tokens: '[{"type":{"label":"name"},"value":"assert","range":[0,6]},{"type":{"label":"("},"range":[6,7]},{"type":{"label":"name"},"value":"falsy","range":[7,12]},{"type":{"label":"?"},"range":[13,14]},{"type":{"label":"name"},"value":"truthy","range":[15,21]},{"type":{"label":":"},"range":[22,23]},{"type":{"label":"name"},"value":"truthy","range":[24,30]},{"type":{"label":"?"},"range":[31,32]},{"type":{"label":"name"},"value":"anotherFalsy","range":[33,45]},{"type":{"label":":"},"range":[46,47]},{"type":{"label":"name"},"value":"truthy","range":[48,54]},{"type":{"label":")"},"range":[54,55]}]',
+  ast: "{\"type\":\"CallExpression\",\"callee\":{\"type\":\"Identifier\",\"name\":\"assert\",\"range\":[0,6]},\"arguments\":[{\"type\":\"ConditionalExpression\",\"test\":{\"type\":\"Identifier\",\"name\":\"falsy\",\"range\":[7,12]},\"consequent\":{\"type\":\"Identifier\",\"name\":\"truthy\",\"range\":[15,21]},\"alternate\":{\"type\":\"ConditionalExpression\",\"test\":{\"type\":\"Identifier\",\"name\":\"truthy\",\"range\":[24,30]},\"consequent\":{\"type\":\"Identifier\",\"name\":\"anotherFalsy\",\"range\":[33,45]},\"alternate\":{\"type\":\"Identifier\",\"name\":\"truthy\",\"range\":[48,54]},\"range\":[24,54]},\"range\":[7,54]}],\"range\":[0,55]}",
+  tokens: "[{\"type\":{\"label\":\"name\"},\"value\":\"assert\",\"range\":[0,6]},{\"type\":{\"label\":\"(\"},\"range\":[6,7]},{\"type\":{\"label\":\"name\"},\"value\":\"falsy\",\"range\":[7,12]},{\"type\":{\"label\":\"?\"},\"range\":[13,14]},{\"type\":{\"label\":\"name\"},\"value\":\"truthy\",\"range\":[15,21]},{\"type\":{\"label\":\":\"},\"range\":[22,23]},{\"type\":{\"label\":\"name\"},\"value\":\"truthy\",\"range\":[24,30]},{\"type\":{\"label\":\"?\"},\"range\":[31,32]},{\"type\":{\"label\":\"name\"},\"value\":\"anotherFalsy\",\"range\":[33,45]},{\"type\":{\"label\":\":\"},\"range\":[46,47]},{\"type\":{\"label\":\"name\"},\"value\":\"truthy\",\"range\":[48,54]},{\"type\":{\"label\":\")\"},\"range\":[54,55]}]",
   visitorKeys: _powerAssertVisitorKeys
 }));
-
-assert(_rec3._expr(_rec3._capt(foo(), 'arguments/0/test') ? _rec3._capt(_rec3._capt(bar, 'arguments/0/consequent/object').baz, 'arguments/0/consequent') : _rec3._capt(typeof goo === 'undefined' ? 'undefined' : _typeof(goo), 'arguments/0/alternate'), {
-  content: 'assert(foo() ? bar.baz : typeof goo)',
-  filepath: 'test/fixtures/ConditionalExpression/fixture.js',
+assert(_rec3._expr(_rec3._capt(foo(), "arguments/0/test") ? _rec3._capt(_rec3._capt(bar, "arguments/0/consequent/object").baz, "arguments/0/consequent") : _rec3._capt(typeof goo === "undefined" ? "undefined" : _typeof(goo), "arguments/0/alternate"), {
+  content: "assert(foo() ? bar.baz : typeof goo)",
+  filepath: "test/fixtures/ConditionalExpression/fixture.js",
   line: 7,
-  ast: '{"type":"CallExpression","callee":{"type":"Identifier","name":"assert","range":[0,6]},"arguments":[{"type":"ConditionalExpression","test":{"type":"CallExpression","callee":{"type":"Identifier","name":"foo","range":[7,10]},"arguments":[],"range":[7,12]},"consequent":{"type":"MemberExpression","object":{"type":"Identifier","name":"bar","range":[15,18]},"property":{"type":"Identifier","name":"baz","range":[19,22]},"computed":false,"range":[15,22]},"alternate":{"type":"UnaryExpression","operator":"typeof","argument":{"type":"Identifier","name":"goo","range":[32,35]},"prefix":true,"range":[25,35]},"range":[7,35]}],"range":[0,36]}',
-  tokens: '[{"type":{"label":"name"},"value":"assert","range":[0,6]},{"type":{"label":"("},"range":[6,7]},{"type":{"label":"name"},"value":"foo","range":[7,10]},{"type":{"label":"("},"range":[10,11]},{"type":{"label":")"},"range":[11,12]},{"type":{"label":"?"},"range":[13,14]},{"type":{"label":"name"},"value":"bar","range":[15,18]},{"type":{"label":"."},"range":[18,19]},{"type":{"label":"name"},"value":"baz","range":[19,22]},{"type":{"label":":"},"range":[23,24]},{"type":{"label":"typeof"},"value":"typeof","range":[25,31]},{"type":{"label":"name"},"value":"goo","range":[32,35]},{"type":{"label":")"},"range":[35,36]}]',
+  ast: "{\"type\":\"CallExpression\",\"callee\":{\"type\":\"Identifier\",\"name\":\"assert\",\"range\":[0,6]},\"arguments\":[{\"type\":\"ConditionalExpression\",\"test\":{\"type\":\"CallExpression\",\"callee\":{\"type\":\"Identifier\",\"name\":\"foo\",\"range\":[7,10]},\"arguments\":[],\"range\":[7,12]},\"consequent\":{\"type\":\"MemberExpression\",\"object\":{\"type\":\"Identifier\",\"name\":\"bar\",\"range\":[15,18]},\"property\":{\"type\":\"Identifier\",\"name\":\"baz\",\"range\":[19,22]},\"computed\":false,\"range\":[15,22]},\"alternate\":{\"type\":\"UnaryExpression\",\"operator\":\"typeof\",\"argument\":{\"type\":\"Identifier\",\"name\":\"goo\",\"range\":[32,35]},\"prefix\":true,\"range\":[25,35]},\"range\":[7,35]}],\"range\":[0,36]}",
+  tokens: "[{\"type\":{\"label\":\"name\"},\"value\":\"assert\",\"range\":[0,6]},{\"type\":{\"label\":\"(\"},\"range\":[6,7]},{\"type\":{\"label\":\"name\"},\"value\":\"foo\",\"range\":[7,10]},{\"type\":{\"label\":\"(\"},\"range\":[10,11]},{\"type\":{\"label\":\")\"},\"range\":[11,12]},{\"type\":{\"label\":\"?\"},\"range\":[13,14]},{\"type\":{\"label\":\"name\"},\"value\":\"bar\",\"range\":[15,18]},{\"type\":{\"label\":\".\"},\"range\":[18,19]},{\"type\":{\"label\":\"name\"},\"value\":\"baz\",\"range\":[19,22]},{\"type\":{\"label\":\":\"},\"range\":[23,24]},{\"type\":{\"label\":\"typeof\"},\"value\":\"typeof\",\"range\":[25,31]},{\"type\":{\"label\":\"name\"},\"value\":\"goo\",\"range\":[32,35]},{\"type\":{\"label\":\")\"},\"range\":[35,36]}]",
   visitorKeys: _powerAssertVisitorKeys
 }));
-
-assert.equal(_rec4._expr(_rec4._capt(foo, 'arguments/0/test') ? _rec4._capt(bar, 'arguments/0/consequent') : _rec4._capt(baz, 'arguments/0/alternate'), {
-  content: 'assert.equal(foo ? bar : baz, falsy ? truthy : truthy ? anotherFalsy : truthy)',
-  filepath: 'test/fixtures/ConditionalExpression/fixture.js',
+assert.equal(_rec4._expr(_rec4._capt(foo, "arguments/0/test") ? _rec4._capt(bar, "arguments/0/consequent") : _rec4._capt(baz, "arguments/0/alternate"), {
+  content: "assert.equal(foo ? bar : baz, falsy ? truthy : truthy ? anotherFalsy : truthy)",
+  filepath: "test/fixtures/ConditionalExpression/fixture.js",
   line: 9,
-  ast: '{"type":"CallExpression","callee":{"type":"MemberExpression","object":{"type":"Identifier","name":"assert","range":[0,6]},"property":{"type":"Identifier","name":"equal","range":[7,12]},"computed":false,"range":[0,12]},"arguments":[{"type":"ConditionalExpression","test":{"type":"Identifier","name":"foo","range":[13,16]},"consequent":{"type":"Identifier","name":"bar","range":[19,22]},"alternate":{"type":"Identifier","name":"baz","range":[25,28]},"range":[13,28]},{"type":"ConditionalExpression","test":{"type":"Identifier","name":"falsy","range":[30,35]},"consequent":{"type":"Identifier","name":"truthy","range":[38,44]},"alternate":{"type":"ConditionalExpression","test":{"type":"Identifier","name":"truthy","range":[47,53]},"consequent":{"type":"Identifier","name":"anotherFalsy","range":[56,68]},"alternate":{"type":"Identifier","name":"truthy","range":[71,77]},"range":[47,77]},"range":[30,77]}],"range":[0,78]}',
-  tokens: '[{"type":{"label":"name"},"value":"assert","range":[0,6]},{"type":{"label":"."},"range":[6,7]},{"type":{"label":"name"},"value":"equal","range":[7,12]},{"type":{"label":"("},"range":[12,13]},{"type":{"label":"name"},"value":"foo","range":[13,16]},{"type":{"label":"?"},"range":[17,18]},{"type":{"label":"name"},"value":"bar","range":[19,22]},{"type":{"label":":"},"range":[23,24]},{"type":{"label":"name"},"value":"baz","range":[25,28]},{"type":{"label":","},"range":[28,29]},{"type":{"label":"name"},"value":"falsy","range":[30,35]},{"type":{"label":"?"},"range":[36,37]},{"type":{"label":"name"},"value":"truthy","range":[38,44]},{"type":{"label":":"},"range":[45,46]},{"type":{"label":"name"},"value":"truthy","range":[47,53]},{"type":{"label":"?"},"range":[54,55]},{"type":{"label":"name"},"value":"anotherFalsy","range":[56,68]},{"type":{"label":":"},"range":[69,70]},{"type":{"label":"name"},"value":"truthy","range":[71,77]},{"type":{"label":")"},"range":[77,78]}]',
+  ast: "{\"type\":\"CallExpression\",\"callee\":{\"type\":\"MemberExpression\",\"object\":{\"type\":\"Identifier\",\"name\":\"assert\",\"range\":[0,6]},\"property\":{\"type\":\"Identifier\",\"name\":\"equal\",\"range\":[7,12]},\"computed\":false,\"range\":[0,12]},\"arguments\":[{\"type\":\"ConditionalExpression\",\"test\":{\"type\":\"Identifier\",\"name\":\"foo\",\"range\":[13,16]},\"consequent\":{\"type\":\"Identifier\",\"name\":\"bar\",\"range\":[19,22]},\"alternate\":{\"type\":\"Identifier\",\"name\":\"baz\",\"range\":[25,28]},\"range\":[13,28]},{\"type\":\"ConditionalExpression\",\"test\":{\"type\":\"Identifier\",\"name\":\"falsy\",\"range\":[30,35]},\"consequent\":{\"type\":\"Identifier\",\"name\":\"truthy\",\"range\":[38,44]},\"alternate\":{\"type\":\"ConditionalExpression\",\"test\":{\"type\":\"Identifier\",\"name\":\"truthy\",\"range\":[47,53]},\"consequent\":{\"type\":\"Identifier\",\"name\":\"anotherFalsy\",\"range\":[56,68]},\"alternate\":{\"type\":\"Identifier\",\"name\":\"truthy\",\"range\":[71,77]},\"range\":[47,77]},\"range\":[30,77]}],\"range\":[0,78]}",
+  tokens: "[{\"type\":{\"label\":\"name\"},\"value\":\"assert\",\"range\":[0,6]},{\"type\":{\"label\":\".\"},\"range\":[6,7]},{\"type\":{\"label\":\"name\"},\"value\":\"equal\",\"range\":[7,12]},{\"type\":{\"label\":\"(\"},\"range\":[12,13]},{\"type\":{\"label\":\"name\"},\"value\":\"foo\",\"range\":[13,16]},{\"type\":{\"label\":\"?\"},\"range\":[17,18]},{\"type\":{\"label\":\"name\"},\"value\":\"bar\",\"range\":[19,22]},{\"type\":{\"label\":\":\"},\"range\":[23,24]},{\"type\":{\"label\":\"name\"},\"value\":\"baz\",\"range\":[25,28]},{\"type\":{\"label\":\",\"},\"range\":[28,29]},{\"type\":{\"label\":\"name\"},\"value\":\"falsy\",\"range\":[30,35]},{\"type\":{\"label\":\"?\"},\"range\":[36,37]},{\"type\":{\"label\":\"name\"},\"value\":\"truthy\",\"range\":[38,44]},{\"type\":{\"label\":\":\"},\"range\":[45,46]},{\"type\":{\"label\":\"name\"},\"value\":\"truthy\",\"range\":[47,53]},{\"type\":{\"label\":\"?\"},\"range\":[54,55]},{\"type\":{\"label\":\"name\"},\"value\":\"anotherFalsy\",\"range\":[56,68]},{\"type\":{\"label\":\":\"},\"range\":[69,70]},{\"type\":{\"label\":\"name\"},\"value\":\"truthy\",\"range\":[71,77]},{\"type\":{\"label\":\")\"},\"range\":[77,78]}]",
   visitorKeys: _powerAssertVisitorKeys
-}), _rec5._expr(_rec5._capt(falsy, 'arguments/1/test') ? _rec5._capt(truthy, 'arguments/1/consequent') : _rec5._capt(truthy, 'arguments/1/alternate/test') ? _rec5._capt(anotherFalsy, 'arguments/1/alternate/consequent') : _rec5._capt(truthy, 'arguments/1/alternate/alternate'), {
-  content: 'assert.equal(foo ? bar : baz, falsy ? truthy : truthy ? anotherFalsy : truthy)',
-  filepath: 'test/fixtures/ConditionalExpression/fixture.js',
+}), _rec5._expr(_rec5._capt(falsy, "arguments/1/test") ? _rec5._capt(truthy, "arguments/1/consequent") : _rec5._capt(truthy, "arguments/1/alternate/test") ? _rec5._capt(anotherFalsy, "arguments/1/alternate/consequent") : _rec5._capt(truthy, "arguments/1/alternate/alternate"), {
+  content: "assert.equal(foo ? bar : baz, falsy ? truthy : truthy ? anotherFalsy : truthy)",
+  filepath: "test/fixtures/ConditionalExpression/fixture.js",
   line: 9,
-  ast: '{"type":"CallExpression","callee":{"type":"MemberExpression","object":{"type":"Identifier","name":"assert","range":[0,6]},"property":{"type":"Identifier","name":"equal","range":[7,12]},"computed":false,"range":[0,12]},"arguments":[{"type":"ConditionalExpression","test":{"type":"Identifier","name":"foo","range":[13,16]},"consequent":{"type":"Identifier","name":"bar","range":[19,22]},"alternate":{"type":"Identifier","name":"baz","range":[25,28]},"range":[13,28]},{"type":"ConditionalExpression","test":{"type":"Identifier","name":"falsy","range":[30,35]},"consequent":{"type":"Identifier","name":"truthy","range":[38,44]},"alternate":{"type":"ConditionalExpression","test":{"type":"Identifier","name":"truthy","range":[47,53]},"consequent":{"type":"Identifier","name":"anotherFalsy","range":[56,68]},"alternate":{"type":"Identifier","name":"truthy","range":[71,77]},"range":[47,77]},"range":[30,77]}],"range":[0,78]}',
-  tokens: '[{"type":{"label":"name"},"value":"assert","range":[0,6]},{"type":{"label":"."},"range":[6,7]},{"type":{"label":"name"},"value":"equal","range":[7,12]},{"type":{"label":"("},"range":[12,13]},{"type":{"label":"name"},"value":"foo","range":[13,16]},{"type":{"label":"?"},"range":[17,18]},{"type":{"label":"name"},"value":"bar","range":[19,22]},{"type":{"label":":"},"range":[23,24]},{"type":{"label":"name"},"value":"baz","range":[25,28]},{"type":{"label":","},"range":[28,29]},{"type":{"label":"name"},"value":"falsy","range":[30,35]},{"type":{"label":"?"},"range":[36,37]},{"type":{"label":"name"},"value":"truthy","range":[38,44]},{"type":{"label":":"},"range":[45,46]},{"type":{"label":"name"},"value":"truthy","range":[47,53]},{"type":{"label":"?"},"range":[54,55]},{"type":{"label":"name"},"value":"anotherFalsy","range":[56,68]},{"type":{"label":":"},"range":[69,70]},{"type":{"label":"name"},"value":"truthy","range":[71,77]},{"type":{"label":")"},"range":[77,78]}]',
+  ast: "{\"type\":\"CallExpression\",\"callee\":{\"type\":\"MemberExpression\",\"object\":{\"type\":\"Identifier\",\"name\":\"assert\",\"range\":[0,6]},\"property\":{\"type\":\"Identifier\",\"name\":\"equal\",\"range\":[7,12]},\"computed\":false,\"range\":[0,12]},\"arguments\":[{\"type\":\"ConditionalExpression\",\"test\":{\"type\":\"Identifier\",\"name\":\"foo\",\"range\":[13,16]},\"consequent\":{\"type\":\"Identifier\",\"name\":\"bar\",\"range\":[19,22]},\"alternate\":{\"type\":\"Identifier\",\"name\":\"baz\",\"range\":[25,28]},\"range\":[13,28]},{\"type\":\"ConditionalExpression\",\"test\":{\"type\":\"Identifier\",\"name\":\"falsy\",\"range\":[30,35]},\"consequent\":{\"type\":\"Identifier\",\"name\":\"truthy\",\"range\":[38,44]},\"alternate\":{\"type\":\"ConditionalExpression\",\"test\":{\"type\":\"Identifier\",\"name\":\"truthy\",\"range\":[47,53]},\"consequent\":{\"type\":\"Identifier\",\"name\":\"anotherFalsy\",\"range\":[56,68]},\"alternate\":{\"type\":\"Identifier\",\"name\":\"truthy\",\"range\":[71,77]},\"range\":[47,77]},\"range\":[30,77]}],\"range\":[0,78]}",
+  tokens: "[{\"type\":{\"label\":\"name\"},\"value\":\"assert\",\"range\":[0,6]},{\"type\":{\"label\":\".\"},\"range\":[6,7]},{\"type\":{\"label\":\"name\"},\"value\":\"equal\",\"range\":[7,12]},{\"type\":{\"label\":\"(\"},\"range\":[12,13]},{\"type\":{\"label\":\"name\"},\"value\":\"foo\",\"range\":[13,16]},{\"type\":{\"label\":\"?\"},\"range\":[17,18]},{\"type\":{\"label\":\"name\"},\"value\":\"bar\",\"range\":[19,22]},{\"type\":{\"label\":\":\"},\"range\":[23,24]},{\"type\":{\"label\":\"name\"},\"value\":\"baz\",\"range\":[25,28]},{\"type\":{\"label\":\",\"},\"range\":[28,29]},{\"type\":{\"label\":\"name\"},\"value\":\"falsy\",\"range\":[30,35]},{\"type\":{\"label\":\"?\"},\"range\":[36,37]},{\"type\":{\"label\":\"name\"},\"value\":\"truthy\",\"range\":[38,44]},{\"type\":{\"label\":\":\"},\"range\":[45,46]},{\"type\":{\"label\":\"name\"},\"value\":\"truthy\",\"range\":[47,53]},{\"type\":{\"label\":\"?\"},\"range\":[54,55]},{\"type\":{\"label\":\"name\"},\"value\":\"anotherFalsy\",\"range\":[56,68]},{\"type\":{\"label\":\":\"},\"range\":[69,70]},{\"type\":{\"label\":\"name\"},\"value\":\"truthy\",\"range\":[71,77]},{\"type\":{\"label\":\")\"},\"range\":[77,78]}]",
   visitorKeys: _powerAssertVisitorKeys
 }));
diff --git a/test/fixtures/ConditionalExpression/expected.js b/test/fixtures/ConditionalExpression/expected.js
index 34f67d9..8de25ce 100644
--- a/test/fixtures/ConditionalExpression/expected.js
+++ b/test/fixtures/ConditionalExpression/expected.js
@@ -7,30 +7,27 @@ var _powerAssertRecorder = function () { function PowerAssertRecorder() { this.c
     _rec4 = new _powerAssertRecorder(),
     _rec5 = new _powerAssertRecorder();
 
-assert(_rec._expr(_rec._capt(foo, 'arguments/0/test') ? _rec._capt(bar, 'arguments/0/consequent') : _rec._capt(baz, 'arguments/0/alternate'), {
-  content: 'assert(foo ? bar : baz)',
-  filepath: 'test/fixtures/ConditionalExpression/fixture.js',
+assert(_rec._expr(_rec._capt(foo, "arguments/0/test") ? _rec._capt(bar, "arguments/0/consequent") : _rec._capt(baz, "arguments/0/alternate"), {
+  content: "assert(foo ? bar : baz)",
+  filepath: "test/fixtures/ConditionalExpression/fixture.js",
   line: 3
 }));
-
-assert(_rec2._expr(_rec2._capt(falsy, 'arguments/0/test') ? _rec2._capt(truthy, 'arguments/0/consequent') : _rec2._capt(truthy, 'arguments/0/alternate/test') ? _rec2._capt(anotherFalsy, 'arguments/0/alternate/consequent') : _rec2._capt(truthy, 'arguments/0/alternate/alternate'), {
-  content: 'assert(falsy ? truthy : truthy ? anotherFalsy : truthy)',
-  filepath: 'test/fixtures/ConditionalExpression/fixture.js',
+assert(_rec2._expr(_rec2._capt(falsy, "arguments/0/test") ? _rec2._capt(truthy, "arguments/0/consequent") : _rec2._capt(truthy, "arguments/0/alternate/test") ? _rec2._capt(anotherFalsy, "arguments/0/alternate/consequent") : _rec2._capt(truthy, "arguments/0/alternate/alternate"), {
+  content: "assert(falsy ? truthy : truthy ? anotherFalsy : truthy)",
+  filepath: "test/fixtures/ConditionalExpression/fixture.js",
   line: 5
 }));
-
-assert(_rec3._expr(_rec3._capt(foo(), 'arguments/0/test') ? _rec3._capt(_rec3._capt(bar, 'arguments/0/consequent/object').baz, 'arguments/0/consequent') : _rec3._capt(typeof goo, 'arguments/0/alternate'), {
-  content: 'assert(foo() ? bar.baz : typeof goo)',
-  filepath: 'test/fixtures/ConditionalExpression/fixture.js',
+assert(_rec3._expr(_rec3._capt(foo(), "arguments/0/test") ? _rec3._capt(_rec3._capt(bar, "arguments/0/consequent/object").baz, "arguments/0/consequent") : _rec3._capt(typeof goo, "arguments/0/alternate"), {
+  content: "assert(foo() ? bar.baz : typeof goo)",
+  filepath: "test/fixtures/ConditionalExpression/fixture.js",
   line: 7
 }));
-
-assert.equal(_rec4._expr(_rec4._capt(foo, 'arguments/0/test') ? _rec4._capt(bar, 'arguments/0/consequent') : _rec4._capt(baz, 'arguments/0/alternate'), {
-  content: 'assert.equal(foo ? bar : baz, falsy ? truthy : truthy ? anotherFalsy : truthy)',
-  filepath: 'test/fixtures/ConditionalExpression/fixture.js',
+assert.equal(_rec4._expr(_rec4._capt(foo, "arguments/0/test") ? _rec4._capt(bar, "arguments/0/consequent") : _rec4._capt(baz, "arguments/0/alternate"), {
+  content: "assert.equal(foo ? bar : baz, falsy ? truthy : truthy ? anotherFalsy : truthy)",
+  filepath: "test/fixtures/ConditionalExpression/fixture.js",
   line: 9
-}), _rec5._expr(_rec5._capt(falsy, 'arguments/1/test') ? _rec5._capt(truthy, 'arguments/1/consequent') : _rec5._capt(truthy, 'arguments/1/alternate/test') ? _rec5._capt(anotherFalsy, 'arguments/1/alternate/consequent') : _rec5._capt(truthy, 'arguments/1/alternate/alternate'), {
-  content: 'assert.equal(foo ? bar : baz, falsy ? truthy : truthy ? anotherFalsy : truthy)',
-  filepath: 'test/fixtures/ConditionalExpression/fixture.js',
+}), _rec5._expr(_rec5._capt(falsy, "arguments/1/test") ? _rec5._capt(truthy, "arguments/1/consequent") : _rec5._capt(truthy, "arguments/1/alternate/test") ? _rec5._capt(anotherFalsy, "arguments/1/alternate/consequent") : _rec5._capt(truthy, "arguments/1/alternate/alternate"), {
+  content: "assert.equal(foo ? bar : baz, falsy ? truthy : truthy ? anotherFalsy : truthy)",
+  filepath: "test/fixtures/ConditionalExpression/fixture.js",
   line: 9
 }));
diff --git a/test/fixtures/FunctionExpression/expected-presets-es2015.js b/test/fixtures/FunctionExpression/expected-presets-es2015.js
index 3400763..27adf0c 100644
--- a/test/fixtures/FunctionExpression/expected-presets-es2015.js
+++ b/test/fixtures/FunctionExpression/expected-presets-es2015.js
@@ -1,20 +1,19 @@
 'use strict';
 
-var _powerAssertVisitorKeys = '{"ArrayExpression":["elements"],"AssignmentExpression":["left","right"],"BinaryExpression":["left","right"],"Directive":["value"],"DirectiveLiteral":[],"BlockStatement":["directives","body"],"BreakStatement":["label"],"CallExpression":["callee","arguments"],"CatchClause":["param","body"],"ConditionalExpression":["test","consequent","alternate"],"ContinueStatement":["label"],"DebuggerStatement":[],"DoWhileStatement":["test","body"],"EmptyStatement":[],"ExpressionStatement":["expression"],"File":["program"],"ForInStatement":["left","right","body"],"ForStatement":["init","test","update","body"],"FunctionDeclaration":["id","params","body","returnType","typeParameters"],"FunctionExpression":["id","params","body","returnType","typeParameters"],"Identifier":["typeAnnotation"],"IfStatement":["test","consequent","alternate"],"LabeledStatement":["label","body"],"StringLiteral":[],"NumericLiteral":[],"NullLiteral":[],"BooleanLiteral":[],"RegExpLiteral":[],"LogicalExpression":["left","right"],"MemberExpression":["object","property"],"NewExpression":["callee","arguments"],"Program":["directives","body"],"ObjectExpression":["properties"],"ObjectMethod":["key","params","body","decorators","returnType","typeParameters"],"ObjectProperty":["key","value","decorators"],"RestElement":["argument","typeAnnotation"],"ReturnStatement":["argument"],"SequenceExpression":["expressions"],"SwitchCase":["test","consequent"],"SwitchStatement":["discriminant","cases"],"ThisExpression":[],"ThrowStatement":["argument"],"TryStatement":["block","handler","finalizer"],"UnaryExpression":["argument"],"UpdateExpression":["argument"],"VariableDeclaration":["declarations"],"VariableDeclarator":["id","init"],"WhileStatement":["test","body"],"WithStatement":["object","body"],"AssignmentPattern":["left","right"],"ArrayPattern":["elements","typeAnnotation"],"ArrowFunctionExpression":["params","body","returnType","typeParameters"],"ClassBody":["body"],"ClassDeclaration":["id","body","superClass","mixins","typeParameters","superTypeParameters","implements","decorators"],"ClassExpression":["id","body","superClass","mixins","typeParameters","superTypeParameters","implements","decorators"],"ExportAllDeclaration":["source"],"ExportDefaultDeclaration":["declaration"],"ExportNamedDeclaration":["declaration","specifiers","source"],"ExportSpecifier":["local","exported"],"ForOfStatement":["left","right","body"],"ImportDeclaration":["specifiers","source"],"ImportDefaultSpecifier":["local"],"ImportNamespaceSpecifier":["local"],"ImportSpecifier":["local","imported"],"MetaProperty":["meta","property"],"ClassMethod":["key","params","body","decorators","returnType","typeParameters"],"ObjectPattern":["properties","typeAnnotation"],"SpreadElement":["argument"],"Super":[],"TaggedTemplateExpression":["tag","quasi"],"TemplateElement":[],"TemplateLiteral":["quasis","expressions"],"YieldExpression":["argument"],"AnyTypeAnnotation":[],"ArrayTypeAnnotation":["elementType"],"BooleanTypeAnnotation":[],"BooleanLiteralTypeAnnotation":[],"NullLiteralTypeAnnotation":[],"ClassImplements":["id","typeParameters"],"ClassProperty":["key","value","typeAnnotation","decorators"],"DeclareClass":["id","typeParameters","extends","body"],"DeclareFunction":["id"],"DeclareInterface":["id","typeParameters","extends","body"],"DeclareModule":["id","body"],"DeclareModuleExports":["typeAnnotation"],"DeclareTypeAlias":["id","typeParameters","right"],"DeclareOpaqueType":["id","typeParameters","supertype"],"DeclareVariable":["id"],"DeclareExportDeclaration":["declaration","specifiers","source"],"ExistentialTypeParam":[],"FunctionTypeAnnotation":["typeParameters","params","rest","returnType"],"FunctionTypeParam":["name","typeAnnotation"],"GenericTypeAnnotation":["id","typeParameters"],"InterfaceExtends":["id","typeParameters"],"InterfaceDeclaration":["id","typeParameters","extends","body"],"IntersectionTypeAnnotation":["types"],"MixedTypeAnnotation":[],"EmptyTypeAnnotation":[],"NullableTypeAnnotation":["typeAnnotation"],"NumericLiteralTypeAnnotation":[],"NumberTypeAnnotation":[],"StringLiteralTypeAnnotation":[],"StringTypeAnnotation":[],"ThisTypeAnnotation":[],"TupleTypeAnnotation":["types"],"TypeofTypeAnnotation":["argument"],"TypeAlias":["id","typeParameters","right"],"OpaqueType":["id","typeParameters","impltype","supertype"],"TypeAnnotation":["typeAnnotation"],"TypeCastExpression":["expression","typeAnnotation"],"TypeParameter":["bound"],"TypeParameterDeclaration":["params"],"TypeParameterInstantiation":["params"],"ObjectTypeAnnotation":["properties","indexers","callProperties"],"ObjectTypeCallProperty":["value"],"ObjectTypeIndexer":["id","key","value"],"ObjectTypeProperty":["key","value"],"ObjectTypeSpreadProperty":["argument"],"QualifiedTypeIdentifier":["id","qualification"],"UnionTypeAnnotation":["types"],"VoidTypeAnnotation":[],"JSXAttribute":["name","value"],"JSXClosingElement":["name"],"JSXElement":["openingElement","children","closingElement"],"JSXEmptyExpression":[],"JSXExpressionContainer":["expression"],"JSXSpreadChild":["expression"],"JSXIdentifier":[],"JSXMemberExpression":["object","property"],"JSXNamespacedName":["namespace","name"],"JSXOpeningElement":["name","attributes"],"JSXSpreadAttribute":["argument"],"JSXText":[],"Noop":[],"ParenthesizedExpression":["expression"],"AwaitExpression":["argument"],"ForAwaitStatement":["left","right","body"],"BindExpression":["object","callee"],"Import":[],"Decorator":["expression"],"DoExpression":["body"],"ExportDefaultSpecifier":["exported"],"ExportNamespaceSpecifier":["exported"],"RestProperty":["argument"],"SpreadProperty":["argument"]}',
+var _powerAssertVisitorKeys = "{\"ArrayExpression\":[\"elements\"],\"AssignmentExpression\":[\"left\",\"right\"],\"BinaryExpression\":[\"left\",\"right\"],\"Directive\":[\"value\"],\"DirectiveLiteral\":[],\"BlockStatement\":[\"directives\",\"body\"],\"BreakStatement\":[\"label\"],\"CallExpression\":[\"callee\",\"arguments\",\"typeParameters\"],\"CatchClause\":[\"param\",\"body\"],\"ConditionalExpression\":[\"test\",\"consequent\",\"alternate\"],\"ContinueStatement\":[\"label\"],\"DebuggerStatement\":[],\"DoWhileStatement\":[\"test\",\"body\"],\"EmptyStatement\":[],\"ExpressionStatement\":[\"expression\"],\"File\":[\"program\"],\"ForInStatement\":[\"left\",\"right\",\"body\"],\"ForStatement\":[\"init\",\"test\",\"update\",\"body\"],\"FunctionDeclaration\":[\"id\",\"params\",\"body\",\"returnType\",\"typeParameters\"],\"FunctionExpression\":[\"id\",\"params\",\"body\",\"returnType\",\"typeParameters\"],\"Identifier\":[\"typeAnnotation\"],\"IfStatement\":[\"test\",\"consequent\",\"alternate\"],\"LabeledStatement\":[\"label\",\"body\"],\"StringLiteral\":[],\"NumericLiteral\":[],\"NullLiteral\":[],\"BooleanLiteral\":[],\"RegExpLiteral\":[],\"LogicalExpression\":[\"left\",\"right\"],\"MemberExpression\":[\"object\",\"property\"],\"NewExpression\":[\"callee\",\"arguments\",\"typeParameters\"],\"Program\":[\"directives\",\"body\"],\"ObjectExpression\":[\"properties\"],\"ObjectMethod\":[\"key\",\"params\",\"body\",\"decorators\",\"returnType\",\"typeParameters\"],\"ObjectProperty\":[\"key\",\"value\",\"decorators\"],\"RestElement\":[\"argument\",\"typeAnnotation\"],\"ReturnStatement\":[\"argument\"],\"SequenceExpression\":[\"expressions\"],\"SwitchCase\":[\"test\",\"consequent\"],\"SwitchStatement\":[\"discriminant\",\"cases\"],\"ThisExpression\":[],\"ThrowStatement\":[\"argument\"],\"TryStatement\":[\"block\",\"handler\",\"finalizer\"],\"UnaryExpression\":[\"argument\"],\"UpdateExpression\":[\"argument\"],\"VariableDeclaration\":[\"declarations\"],\"VariableDeclarator\":[\"id\",\"init\"],\"WhileStatement\":[\"test\",\"body\"],\"WithStatement\":[\"object\",\"body\"],\"AssignmentPattern\":[\"left\",\"right\"],\"ArrayPattern\":[\"elements\",\"typeAnnotation\"],\"ArrowFunctionExpression\":[\"params\",\"body\",\"returnType\",\"typeParameters\"],\"ClassBody\":[\"body\"],\"ClassDeclaration\":[\"id\",\"body\",\"superClass\",\"mixins\",\"typeParameters\",\"superTypeParameters\",\"implements\",\"decorators\"],\"ClassExpression\":[\"id\",\"body\",\"superClass\",\"mixins\",\"typeParameters\",\"superTypeParameters\",\"implements\",\"decorators\"],\"ExportAllDeclaration\":[\"source\"],\"ExportDefaultDeclaration\":[\"declaration\"],\"ExportNamedDeclaration\":[\"declaration\",\"specifiers\",\"source\"],\"ExportSpecifier\":[\"local\",\"exported\"],\"ForOfStatement\":[\"left\",\"right\",\"body\"],\"ImportDeclaration\":[\"specifiers\",\"source\"],\"ImportDefaultSpecifier\":[\"local\"],\"ImportNamespaceSpecifier\":[\"local\"],\"ImportSpecifier\":[\"local\",\"imported\"],\"MetaProperty\":[\"meta\",\"property\"],\"ClassMethod\":[\"key\",\"params\",\"body\",\"decorators\",\"returnType\",\"typeParameters\"],\"ObjectPattern\":[\"properties\",\"typeAnnotation\"],\"SpreadElement\":[\"argument\"],\"Super\":[],\"TaggedTemplateExpression\":[\"tag\",\"quasi\"],\"TemplateElement\":[],\"TemplateLiteral\":[\"quasis\",\"expressions\"],\"YieldExpression\":[\"argument\"],\"AnyTypeAnnotation\":[],\"ArrayTypeAnnotation\":[\"elementType\"],\"BooleanTypeAnnotation\":[],\"BooleanLiteralTypeAnnotation\":[],\"NullLiteralTypeAnnotation\":[],\"ClassImplements\":[\"id\",\"typeParameters\"],\"DeclareClass\":[\"id\",\"typeParameters\",\"extends\",\"body\"],\"DeclareFunction\":[\"id\"],\"DeclareInterface\":[\"id\",\"typeParameters\",\"extends\",\"body\"],\"DeclareModule\":[\"id\",\"body\"],\"DeclareModuleExports\":[\"typeAnnotation\"],\"DeclareTypeAlias\":[\"id\",\"typeParameters\",\"right\"],\"DeclareOpaqueType\":[\"id\",\"typeParameters\",\"supertype\"],\"DeclareVariable\":[\"id\"],\"DeclareExportDeclaration\":[\"declaration\",\"specifiers\",\"source\"],\"DeclareExportAllDeclaration\":[\"source\"],\"DeclaredPredicate\":[\"value\"],\"ExistsTypeAnnotation\":[],\"FunctionTypeAnnotation\":[\"typeParameters\",\"params\",\"rest\",\"returnType\"],\"FunctionTypeParam\":[\"name\",\"typeAnnotation\"],\"GenericTypeAnnotation\":[\"id\",\"typeParameters\"],\"InferredPredicate\":[],\"InterfaceExtends\":[\"id\",\"typeParameters\"],\"InterfaceDeclaration\":[\"id\",\"typeParameters\",\"extends\",\"body\"],\"IntersectionTypeAnnotation\":[\"types\"],\"MixedTypeAnnotation\":[],\"EmptyTypeAnnotation\":[],\"NullableTypeAnnotation\":[\"typeAnnotation\"],\"NumberLiteralTypeAnnotation\":[],\"NumberTypeAnnotation\":[],\"ObjectTypeAnnotation\":[\"properties\",\"indexers\",\"callProperties\"],\"ObjectTypeCallProperty\":[\"value\"],\"ObjectTypeIndexer\":[\"id\",\"key\",\"value\"],\"ObjectTypeProperty\":[\"key\",\"value\"],\"ObjectTypeSpreadProperty\":[\"argument\"],\"OpaqueType\":[\"id\",\"typeParameters\",\"supertype\",\"impltype\"],\"QualifiedTypeIdentifier\":[\"id\",\"qualification\"],\"StringLiteralTypeAnnotation\":[],\"StringTypeAnnotation\":[],\"ThisTypeAnnotation\":[],\"TupleTypeAnnotation\":[\"types\"],\"TypeofTypeAnnotation\":[\"argument\"],\"TypeAlias\":[\"id\",\"typeParameters\",\"right\"],\"TypeAnnotation\":[\"typeAnnotation\"],\"TypeCastExpression\":[\"expression\",\"typeAnnotation\"],\"TypeParameter\":[\"bound\",\"default\"],\"TypeParameterDeclaration\":[\"params\"],\"TypeParameterInstantiation\":[\"params\"],\"UnionTypeAnnotation\":[\"types\"],\"VoidTypeAnnotation\":[],\"JSXAttribute\":[\"name\",\"value\"],\"JSXClosingElement\":[\"name\"],\"JSXElement\":[\"openingElement\",\"children\",\"closingElement\"],\"JSXEmptyExpression\":[],\"JSXExpressionContainer\":[\"expression\"],\"JSXSpreadChild\":[\"expression\"],\"JSXIdentifier\":[],\"JSXMemberExpression\":[\"object\",\"property\"],\"JSXNamespacedName\":[\"namespace\",\"name\"],\"JSXOpeningElement\":[\"name\",\"attributes\"],\"JSXSpreadAttribute\":[\"argument\"],\"JSXText\":[],\"JSXFragment\":[\"openingFragment\",\"children\",\"closingFragment\"],\"JSXOpeningFragment\":[],\"JSXClosingFragment\":[],\"Noop\":[],\"ParenthesizedExpression\":[\"expression\"],\"AwaitExpression\":[\"argument\"],\"BindExpression\":[\"object\",\"callee\"],\"ClassProperty\":[\"key\",\"value\",\"typeAnnotation\",\"decorators\"],\"Import\":[],\"Decorator\":[\"expression\"],\"DoExpression\":[\"body\"],\"ExportDefaultSpecifier\":[\"exported\"],\"ExportNamespaceSpecifier\":[\"exported\"],\"TSParameterProperty\":[\"parameter\"],\"TSDeclareFunction\":[\"id\",\"typeParameters\",\"params\",\"returnType\"],\"TSDeclareMethod\":[\"decorators\",\"key\",\"typeParameters\",\"params\",\"returnType\"],\"TSQualifiedName\":[\"left\",\"right\"],\"TSCallSignatureDeclaration\":[\"typeParameters\",\"parameters\",\"typeAnnotation\"],\"TSConstructSignatureDeclaration\":[\"typeParameters\",\"parameters\",\"typeAnnotation\"],\"TSPropertySignature\":[\"key\",\"typeAnnotation\",\"initializer\"],\"TSMethodSignature\":[\"key\",\"typeParameters\",\"parameters\",\"typeAnnotation\"],\"TSIndexSignature\":[\"parameters\",\"typeAnnotation\"],\"TSAnyKeyword\":[],\"TSNumberKeyword\":[],\"TSObjectKeyword\":[],\"TSBooleanKeyword\":[],\"TSStringKeyword\":[],\"TSSymbolKeyword\":[],\"TSVoidKeyword\":[],\"TSUndefinedKeyword\":[],\"TSNullKeyword\":[],\"TSNeverKeyword\":[],\"TSThisType\":[],\"TSFunctionType\":[\"typeParameters\",\"typeAnnotation\"],\"TSConstructorType\":[\"typeParameters\",\"typeAnnotation\"],\"TSTypeReference\":[\"typeName\",\"typeParameters\"],\"TSTypePredicate\":[\"parameterName\",\"typeAnnotation\"],\"TSTypeQuery\":[\"exprName\"],\"TSTypeLiteral\":[\"members\"],\"TSArrayType\":[\"elementType\"],\"TSTupleType\":[\"elementTypes\"],\"TSUnionType\":[\"types\"],\"TSIntersectionType\":[\"types\"],\"TSParenthesizedType\":[\"typeAnnotation\"],\"TSTypeOperator\":[\"typeAnnotation\"],\"TSIndexedAccessType\":[\"objectType\",\"indexType\"],\"TSMappedType\":[\"typeParameter\",\"typeAnnotation\"],\"TSLiteralType\":[\"literal\"],\"TSExpressionWithTypeArguments\":[\"expression\",\"typeParameters\"],\"TSInterfaceDeclaration\":[\"id\",\"typeParameters\",\"extends\",\"body\"],\"TSInterfaceBody\":[\"body\"],\"TSTypeAliasDeclaration\":[\"id\",\"typeParameters\",\"typeAnnotation\"],\"TSAsExpression\":[\"expression\",\"typeAnnotation\"],\"TSTypeAssertion\":[\"typeAnnotation\",\"expression\"],\"TSEnumDeclaration\":[\"id\",\"members\"],\"TSEnumMember\":[\"id\",\"initializer\"],\"TSModuleDeclaration\":[\"id\",\"body\"],\"TSModuleBlock\":[\"body\"],\"TSImportEqualsDeclaration\":[\"id\",\"moduleReference\"],\"TSExternalModuleReference\":[\"expression\"],\"TSNonNullExpression\":[\"expression\"],\"TSExportAssignment\":[\"expression\"],\"TSNamespaceExportDeclaration\":[\"id\"],\"TSTypeAnnotation\":[\"typeAnnotation\"],\"TSTypeParameterInstantiation\":[\"params\"],\"TSTypeParameterDeclaration\":[\"params\"],\"TSTypeParameter\":[\"constraint\",\"default\"]}",
     _powerAssertRecorder = function () { function PowerAssertRecorder() { this.captured = []; } PowerAssertRecorder.prototype._capt = function _capt(value, espath) { this.captured.push({ value: value, espath: espath }); return value; }; PowerAssertRecorder.prototype._expr = function _expr(value, source) { var capturedValues = this.captured; this.captured = []; return { powerAssertContext: { value: value, events: capturedValues }, source: source }; }; return PowerAssertRecorder; }(),
     _rec = new _powerAssertRecorder();
 
 assert(function (a, b) {
   return a + b;
 });
-
-assert(_rec._expr(_rec._capt(_rec._capt(baz, 'arguments/0/left') === _rec._capt(function (a, b) {
+assert(_rec._expr(_rec._capt(_rec._capt(baz, "arguments/0/left") === _rec._capt(function (a, b) {
   return a + b;
-}(_rec._capt(foo, 'arguments/0/right/arguments/0'), _rec._capt(bar, 'arguments/0/right/arguments/1')), 'arguments/0/right'), 'arguments/0'), {
-  content: 'assert(baz === function (a, b) { return a + b; }(foo, bar))',
-  filepath: 'test/fixtures/FunctionExpression/fixture.js',
+}(_rec._capt(foo, "arguments/0/right/arguments/0"), _rec._capt(bar, "arguments/0/right/arguments/1")), "arguments/0/right"), "arguments/0"), {
+  content: "assert(baz === function (a, b) { return a + b; }(foo, bar))",
+  filepath: "test/fixtures/FunctionExpression/fixture.js",
   line: 5,
-  ast: '{"type":"CallExpression","callee":{"type":"Identifier","name":"assert","range":[0,6]},"arguments":[{"type":"BinaryExpression","operator":"===","left":{"type":"Identifier","name":"baz","range":[7,10]},"right":{"type":"CallExpression","callee":{"type":"FunctionExpression","id":null,"params":[{"type":"Identifier","name":"a","range":[25,26]},{"type":"Identifier","name":"b","range":[28,29]}],"body":{"type":"BlockStatement","body":[{"type":"ReturnStatement","argument":{"type":"BinaryExpression","operator":"+","left":{"type":"Identifier","name":"a","range":[40,41]},"right":{"type":"Identifier","name":"b","range":[44,45]},"range":[40,45]},"range":[33,46]}],"directives":[],"range":[31,48]},"generator":false,"async":false,"range":[15,48]},"arguments":[{"type":"Identifier","name":"foo","range":[49,52]},{"type":"Identifier","name":"bar","range":[54,57]}],"range":[15,58]},"range":[7,58]}],"range":[0,59]}',
-  tokens: '[{"type":{"label":"name"},"value":"assert","range":[0,6]},{"type":{"label":"("},"range":[6,7]},{"type":{"label":"name"},"value":"baz","range":[7,10]},{"type":{"label":"==/!="},"value":"===","range":[11,14]},{"type":{"label":"function"},"value":"function","range":[15,23]},{"type":{"label":"("},"range":[24,25]},{"type":{"label":"name"},"value":"a","range":[25,26]},{"type":{"label":","},"range":[26,27]},{"type":{"label":"name"},"value":"b","range":[28,29]},{"type":{"label":")"},"range":[29,30]},{"type":{"label":"{"},"range":[31,32]},{"type":{"label":"return"},"value":"return","range":[33,39]},{"type":{"label":"name"},"value":"a","range":[40,41]},{"type":{"label":"+/-"},"value":"+","range":[42,43]},{"type":{"label":"name"},"value":"b","range":[44,45]},{"type":{"label":";"},"range":[45,46]},{"type":{"label":"}"},"range":[47,48]},{"type":{"label":"("},"range":[48,49]},{"type":{"label":"name"},"value":"foo","range":[49,52]},{"type":{"label":","},"range":[52,53]},{"type":{"label":"name"},"value":"bar","range":[54,57]},{"type":{"label":")"},"range":[57,58]},{"type":{"label":")"},"range":[58,59]}]',
+  ast: "{\"type\":\"CallExpression\",\"callee\":{\"type\":\"Identifier\",\"name\":\"assert\",\"range\":[0,6]},\"arguments\":[{\"type\":\"BinaryExpression\",\"operator\":\"===\",\"left\":{\"type\":\"Identifier\",\"name\":\"baz\",\"range\":[7,10]},\"right\":{\"type\":\"CallExpression\",\"callee\":{\"type\":\"FunctionExpression\",\"id\":null,\"params\":[{\"type\":\"Identifier\",\"name\":\"a\",\"range\":[25,26]},{\"type\":\"Identifier\",\"name\":\"b\",\"range\":[28,29]}],\"body\":{\"type\":\"BlockStatement\",\"body\":[{\"type\":\"ReturnStatement\",\"argument\":{\"type\":\"BinaryExpression\",\"operator\":\"+\",\"left\":{\"type\":\"Identifier\",\"name\":\"a\",\"range\":[40,41]},\"right\":{\"type\":\"Identifier\",\"name\":\"b\",\"range\":[44,45]},\"range\":[40,45]},\"range\":[33,46]}],\"directives\":[],\"range\":[31,48]},\"generator\":false,\"async\":false,\"range\":[15,48]},\"arguments\":[{\"type\":\"Identifier\",\"name\":\"foo\",\"range\":[49,52]},{\"type\":\"Identifier\",\"name\":\"bar\",\"range\":[54,57]}],\"range\":[15,58]},\"range\":[7,58]}],\"range\":[0,59]}",
+  tokens: "[{\"type\":{\"label\":\"name\"},\"value\":\"assert\",\"range\":[0,6]},{\"type\":{\"label\":\"(\"},\"range\":[6,7]},{\"type\":{\"label\":\"name\"},\"value\":\"baz\",\"range\":[7,10]},{\"type\":{\"label\":\"==/!=\"},\"value\":\"===\",\"range\":[11,14]},{\"type\":{\"label\":\"function\"},\"value\":\"function\",\"range\":[15,23]},{\"type\":{\"label\":\"(\"},\"range\":[24,25]},{\"type\":{\"label\":\"name\"},\"value\":\"a\",\"range\":[25,26]},{\"type\":{\"label\":\",\"},\"range\":[26,27]},{\"type\":{\"label\":\"name\"},\"value\":\"b\",\"range\":[28,29]},{\"type\":{\"label\":\")\"},\"range\":[29,30]},{\"type\":{\"label\":\"{\"},\"range\":[31,32]},{\"type\":{\"label\":\"return\"},\"value\":\"return\",\"range\":[33,39]},{\"type\":{\"label\":\"name\"},\"value\":\"a\",\"range\":[40,41]},{\"type\":{\"label\":\"+/-\"},\"value\":\"+\",\"range\":[42,43]},{\"type\":{\"label\":\"name\"},\"value\":\"b\",\"range\":[44,45]},{\"type\":{\"label\":\";\"},\"range\":[45,46]},{\"type\":{\"label\":\"}\"},\"range\":[47,48]},{\"type\":{\"label\":\"(\"},\"range\":[48,49]},{\"type\":{\"label\":\"name\"},\"value\":\"foo\",\"range\":[49,52]},{\"type\":{\"label\":\",\"},\"range\":[52,53]},{\"type\":{\"label\":\"name\"},\"value\":\"bar\",\"range\":[54,57]},{\"type\":{\"label\":\")\"},\"range\":[57,58]},{\"type\":{\"label\":\")\"},\"range\":[58,59]}]",
   visitorKeys: _powerAssertVisitorKeys
 }));
diff --git a/test/fixtures/FunctionExpression/expected.js b/test/fixtures/FunctionExpression/expected.js
index 1e8b48f..9129065 100644
--- a/test/fixtures/FunctionExpression/expected.js
+++ b/test/fixtures/FunctionExpression/expected.js
@@ -6,11 +6,10 @@ var _powerAssertRecorder = function () { function PowerAssertRecorder() { this.c
 assert(function (a, b) {
   return a + b;
 });
-
-assert(_rec._expr(_rec._capt(_rec._capt(baz, 'arguments/0/left') === _rec._capt(function (a, b) {
+assert(_rec._expr(_rec._capt(_rec._capt(baz, "arguments/0/left") === _rec._capt(function (a, b) {
   return a + b;
-}(_rec._capt(foo, 'arguments/0/right/arguments/0'), _rec._capt(bar, 'arguments/0/right/arguments/1')), 'arguments/0/right'), 'arguments/0'), {
-  content: 'assert(baz === function (a, b) { return a + b; }(foo, bar))',
-  filepath: 'test/fixtures/FunctionExpression/fixture.js',
+}(_rec._capt(foo, "arguments/0/right/arguments/0"), _rec._capt(bar, "arguments/0/right/arguments/1")), "arguments/0/right"), "arguments/0"), {
+  content: "assert(baz === function (a, b) { return a + b; }(foo, bar))",
+  filepath: "test/fixtures/FunctionExpression/fixture.js",
   line: 5
 }));
diff --git a/test/fixtures/Identifier/expected-presets-es2015.js b/test/fixtures/Identifier/expected-presets-es2015.js
index ee5e271..93a4bb3 100644
--- a/test/fixtures/Identifier/expected-presets-es2015.js
+++ b/test/fixtures/Identifier/expected-presets-es2015.js
@@ -1,6 +1,6 @@
 'use strict';
 
-var _powerAssertVisitorKeys = '{"ArrayExpression":["elements"],"AssignmentExpression":["left","right"],"BinaryExpression":["left","right"],"Directive":["value"],"DirectiveLiteral":[],"BlockStatement":["directives","body"],"BreakStatement":["label"],"CallExpression":["callee","arguments"],"CatchClause":["param","body"],"ConditionalExpression":["test","consequent","alternate"],"ContinueStatement":["label"],"DebuggerStatement":[],"DoWhileStatement":["test","body"],"EmptyStatement":[],"ExpressionStatement":["expression"],"File":["program"],"ForInStatement":["left","right","body"],"ForStatement":["init","test","update","body"],"FunctionDeclaration":["id","params","body","returnType","typeParameters"],"FunctionExpression":["id","params","body","returnType","typeParameters"],"Identifier":["typeAnnotation"],"IfStatement":["test","consequent","alternate"],"LabeledStatement":["label","body"],"StringLiteral":[],"NumericLiteral":[],"NullLiteral":[],"BooleanLiteral":[],"RegExpLiteral":[],"LogicalExpression":["left","right"],"MemberExpression":["object","property"],"NewExpression":["callee","arguments"],"Program":["directives","body"],"ObjectExpression":["properties"],"ObjectMethod":["key","params","body","decorators","returnType","typeParameters"],"ObjectProperty":["key","value","decorators"],"RestElement":["argument","typeAnnotation"],"ReturnStatement":["argument"],"SequenceExpression":["expressions"],"SwitchCase":["test","consequent"],"SwitchStatement":["discriminant","cases"],"ThisExpression":[],"ThrowStatement":["argument"],"TryStatement":["block","handler","finalizer"],"UnaryExpression":["argument"],"UpdateExpression":["argument"],"VariableDeclaration":["declarations"],"VariableDeclarator":["id","init"],"WhileStatement":["test","body"],"WithStatement":["object","body"],"AssignmentPattern":["left","right"],"ArrayPattern":["elements","typeAnnotation"],"ArrowFunctionExpression":["params","body","returnType","typeParameters"],"ClassBody":["body"],"ClassDeclaration":["id","body","superClass","mixins","typeParameters","superTypeParameters","implements","decorators"],"ClassExpression":["id","body","superClass","mixins","typeParameters","superTypeParameters","implements","decorators"],"ExportAllDeclaration":["source"],"ExportDefaultDeclaration":["declaration"],"ExportNamedDeclaration":["declaration","specifiers","source"],"ExportSpecifier":["local","exported"],"ForOfStatement":["left","right","body"],"ImportDeclaration":["specifiers","source"],"ImportDefaultSpecifier":["local"],"ImportNamespaceSpecifier":["local"],"ImportSpecifier":["local","imported"],"MetaProperty":["meta","property"],"ClassMethod":["key","params","body","decorators","returnType","typeParameters"],"ObjectPattern":["properties","typeAnnotation"],"SpreadElement":["argument"],"Super":[],"TaggedTemplateExpression":["tag","quasi"],"TemplateElement":[],"TemplateLiteral":["quasis","expressions"],"YieldExpression":["argument"],"AnyTypeAnnotation":[],"ArrayTypeAnnotation":["elementType"],"BooleanTypeAnnotation":[],"BooleanLiteralTypeAnnotation":[],"NullLiteralTypeAnnotation":[],"ClassImplements":["id","typeParameters"],"ClassProperty":["key","value","typeAnnotation","decorators"],"DeclareClass":["id","typeParameters","extends","body"],"DeclareFunction":["id"],"DeclareInterface":["id","typeParameters","extends","body"],"DeclareModule":["id","body"],"DeclareModuleExports":["typeAnnotation"],"DeclareTypeAlias":["id","typeParameters","right"],"DeclareOpaqueType":["id","typeParameters","supertype"],"DeclareVariable":["id"],"DeclareExportDeclaration":["declaration","specifiers","source"],"ExistentialTypeParam":[],"FunctionTypeAnnotation":["typeParameters","params","rest","returnType"],"FunctionTypeParam":["name","typeAnnotation"],"GenericTypeAnnotation":["id","typeParameters"],"InterfaceExtends":["id","typeParameters"],"InterfaceDeclaration":["id","typeParameters","extends","body"],"IntersectionTypeAnnotation":["types"],"MixedTypeAnnotation":[],"EmptyTypeAnnotation":[],"NullableTypeAnnotation":["typeAnnotation"],"NumericLiteralTypeAnnotation":[],"NumberTypeAnnotation":[],"StringLiteralTypeAnnotation":[],"StringTypeAnnotation":[],"ThisTypeAnnotation":[],"TupleTypeAnnotation":["types"],"TypeofTypeAnnotation":["argument"],"TypeAlias":["id","typeParameters","right"],"OpaqueType":["id","typeParameters","impltype","supertype"],"TypeAnnotation":["typeAnnotation"],"TypeCastExpression":["expression","typeAnnotation"],"TypeParameter":["bound"],"TypeParameterDeclaration":["params"],"TypeParameterInstantiation":["params"],"ObjectTypeAnnotation":["properties","indexers","callProperties"],"ObjectTypeCallProperty":["value"],"ObjectTypeIndexer":["id","key","value"],"ObjectTypeProperty":["key","value"],"ObjectTypeSpreadProperty":["argument"],"QualifiedTypeIdentifier":["id","qualification"],"UnionTypeAnnotation":["types"],"VoidTypeAnnotation":[],"JSXAttribute":["name","value"],"JSXClosingElement":["name"],"JSXElement":["openingElement","children","closingElement"],"JSXEmptyExpression":[],"JSXExpressionContainer":["expression"],"JSXSpreadChild":["expression"],"JSXIdentifier":[],"JSXMemberExpression":["object","property"],"JSXNamespacedName":["namespace","name"],"JSXOpeningElement":["name","attributes"],"JSXSpreadAttribute":["argument"],"JSXText":[],"Noop":[],"ParenthesizedExpression":["expression"],"AwaitExpression":["argument"],"ForAwaitStatement":["left","right","body"],"BindExpression":["object","callee"],"Import":[],"Decorator":["expression"],"DoExpression":["body"],"ExportDefaultSpecifier":["exported"],"ExportNamespaceSpecifier":["exported"],"RestProperty":["argument"],"SpreadProperty":["argument"]}',
+var _powerAssertVisitorKeys = "{\"ArrayExpression\":[\"elements\"],\"AssignmentExpression\":[\"left\",\"right\"],\"BinaryExpression\":[\"left\",\"right\"],\"Directive\":[\"value\"],\"DirectiveLiteral\":[],\"BlockStatement\":[\"directives\",\"body\"],\"BreakStatement\":[\"label\"],\"CallExpression\":[\"callee\",\"arguments\",\"typeParameters\"],\"CatchClause\":[\"param\",\"body\"],\"ConditionalExpression\":[\"test\",\"consequent\",\"alternate\"],\"ContinueStatement\":[\"label\"],\"DebuggerStatement\":[],\"DoWhileStatement\":[\"test\",\"body\"],\"EmptyStatement\":[],\"ExpressionStatement\":[\"expression\"],\"File\":[\"program\"],\"ForInStatement\":[\"left\",\"right\",\"body\"],\"ForStatement\":[\"init\",\"test\",\"update\",\"body\"],\"FunctionDeclaration\":[\"id\",\"params\",\"body\",\"returnType\",\"typeParameters\"],\"FunctionExpression\":[\"id\",\"params\",\"body\",\"returnType\",\"typeParameters\"],\"Identifier\":[\"typeAnnotation\"],\"IfStatement\":[\"test\",\"consequent\",\"alternate\"],\"LabeledStatement\":[\"label\",\"body\"],\"StringLiteral\":[],\"NumericLiteral\":[],\"NullLiteral\":[],\"BooleanLiteral\":[],\"RegExpLiteral\":[],\"LogicalExpression\":[\"left\",\"right\"],\"MemberExpression\":[\"object\",\"property\"],\"NewExpression\":[\"callee\",\"arguments\",\"typeParameters\"],\"Program\":[\"directives\",\"body\"],\"ObjectExpression\":[\"properties\"],\"ObjectMethod\":[\"key\",\"params\",\"body\",\"decorators\",\"returnType\",\"typeParameters\"],\"ObjectProperty\":[\"key\",\"value\",\"decorators\"],\"RestElement\":[\"argument\",\"typeAnnotation\"],\"ReturnStatement\":[\"argument\"],\"SequenceExpression\":[\"expressions\"],\"SwitchCase\":[\"test\",\"consequent\"],\"SwitchStatement\":[\"discriminant\",\"cases\"],\"ThisExpression\":[],\"ThrowStatement\":[\"argument\"],\"TryStatement\":[\"block\",\"handler\",\"finalizer\"],\"UnaryExpression\":[\"argument\"],\"UpdateExpression\":[\"argument\"],\"VariableDeclaration\":[\"declarations\"],\"VariableDeclarator\":[\"id\",\"init\"],\"WhileStatement\":[\"test\",\"body\"],\"WithStatement\":[\"object\",\"body\"],\"AssignmentPattern\":[\"left\",\"right\"],\"ArrayPattern\":[\"elements\",\"typeAnnotation\"],\"ArrowFunctionExpression\":[\"params\",\"body\",\"returnType\",\"typeParameters\"],\"ClassBody\":[\"body\"],\"ClassDeclaration\":[\"id\",\"body\",\"superClass\",\"mixins\",\"typeParameters\",\"superTypeParameters\",\"implements\",\"decorators\"],\"ClassExpression\":[\"id\",\"body\",\"superClass\",\"mixins\",\"typeParameters\",\"superTypeParameters\",\"implements\",\"decorators\"],\"ExportAllDeclaration\":[\"source\"],\"ExportDefaultDeclaration\":[\"declaration\"],\"ExportNamedDeclaration\":[\"declaration\",\"specifiers\",\"source\"],\"ExportSpecifier\":[\"local\",\"exported\"],\"ForOfStatement\":[\"left\",\"right\",\"body\"],\"ImportDeclaration\":[\"specifiers\",\"source\"],\"ImportDefaultSpecifier\":[\"local\"],\"ImportNamespaceSpecifier\":[\"local\"],\"ImportSpecifier\":[\"local\",\"imported\"],\"MetaProperty\":[\"meta\",\"property\"],\"ClassMethod\":[\"key\",\"params\",\"body\",\"decorators\",\"returnType\",\"typeParameters\"],\"ObjectPattern\":[\"properties\",\"typeAnnotation\"],\"SpreadElement\":[\"argument\"],\"Super\":[],\"TaggedTemplateExpression\":[\"tag\",\"quasi\"],\"TemplateElement\":[],\"TemplateLiteral\":[\"quasis\",\"expressions\"],\"YieldExpression\":[\"argument\"],\"AnyTypeAnnotation\":[],\"ArrayTypeAnnotation\":[\"elementType\"],\"BooleanTypeAnnotation\":[],\"BooleanLiteralTypeAnnotation\":[],\"NullLiteralTypeAnnotation\":[],\"ClassImplements\":[\"id\",\"typeParameters\"],\"DeclareClass\":[\"id\",\"typeParameters\",\"extends\",\"body\"],\"DeclareFunction\":[\"id\"],\"DeclareInterface\":[\"id\",\"typeParameters\",\"extends\",\"body\"],\"DeclareModule\":[\"id\",\"body\"],\"DeclareModuleExports\":[\"typeAnnotation\"],\"DeclareTypeAlias\":[\"id\",\"typeParameters\",\"right\"],\"DeclareOpaqueType\":[\"id\",\"typeParameters\",\"supertype\"],\"DeclareVariable\":[\"id\"],\"DeclareExportDeclaration\":[\"declaration\",\"specifiers\",\"source\"],\"DeclareExportAllDeclaration\":[\"source\"],\"DeclaredPredicate\":[\"value\"],\"ExistsTypeAnnotation\":[],\"FunctionTypeAnnotation\":[\"typeParameters\",\"params\",\"rest\",\"returnType\"],\"FunctionTypeParam\":[\"name\",\"typeAnnotation\"],\"GenericTypeAnnotation\":[\"id\",\"typeParameters\"],\"InferredPredicate\":[],\"InterfaceExtends\":[\"id\",\"typeParameters\"],\"InterfaceDeclaration\":[\"id\",\"typeParameters\",\"extends\",\"body\"],\"IntersectionTypeAnnotation\":[\"types\"],\"MixedTypeAnnotation\":[],\"EmptyTypeAnnotation\":[],\"NullableTypeAnnotation\":[\"typeAnnotation\"],\"NumberLiteralTypeAnnotation\":[],\"NumberTypeAnnotation\":[],\"ObjectTypeAnnotation\":[\"properties\",\"indexers\",\"callProperties\"],\"ObjectTypeCallProperty\":[\"value\"],\"ObjectTypeIndexer\":[\"id\",\"key\",\"value\"],\"ObjectTypeProperty\":[\"key\",\"value\"],\"ObjectTypeSpreadProperty\":[\"argument\"],\"OpaqueType\":[\"id\",\"typeParameters\",\"supertype\",\"impltype\"],\"QualifiedTypeIdentifier\":[\"id\",\"qualification\"],\"StringLiteralTypeAnnotation\":[],\"StringTypeAnnotation\":[],\"ThisTypeAnnotation\":[],\"TupleTypeAnnotation\":[\"types\"],\"TypeofTypeAnnotation\":[\"argument\"],\"TypeAlias\":[\"id\",\"typeParameters\",\"right\"],\"TypeAnnotation\":[\"typeAnnotation\"],\"TypeCastExpression\":[\"expression\",\"typeAnnotation\"],\"TypeParameter\":[\"bound\",\"default\"],\"TypeParameterDeclaration\":[\"params\"],\"TypeParameterInstantiation\":[\"params\"],\"UnionTypeAnnotation\":[\"types\"],\"VoidTypeAnnotation\":[],\"JSXAttribute\":[\"name\",\"value\"],\"JSXClosingElement\":[\"name\"],\"JSXElement\":[\"openingElement\",\"children\",\"closingElement\"],\"JSXEmptyExpression\":[],\"JSXExpressionContainer\":[\"expression\"],\"JSXSpreadChild\":[\"expression\"],\"JSXIdentifier\":[],\"JSXMemberExpression\":[\"object\",\"property\"],\"JSXNamespacedName\":[\"namespace\",\"name\"],\"JSXOpeningElement\":[\"name\",\"attributes\"],\"JSXSpreadAttribute\":[\"argument\"],\"JSXText\":[],\"JSXFragment\":[\"openingFragment\",\"children\",\"closingFragment\"],\"JSXOpeningFragment\":[],\"JSXClosingFragment\":[],\"Noop\":[],\"ParenthesizedExpression\":[\"expression\"],\"AwaitExpression\":[\"argument\"],\"BindExpression\":[\"object\",\"callee\"],\"ClassProperty\":[\"key\",\"value\",\"typeAnnotation\",\"decorators\"],\"Import\":[],\"Decorator\":[\"expression\"],\"DoExpression\":[\"body\"],\"ExportDefaultSpecifier\":[\"exported\"],\"ExportNamespaceSpecifier\":[\"exported\"],\"TSParameterProperty\":[\"parameter\"],\"TSDeclareFunction\":[\"id\",\"typeParameters\",\"params\",\"returnType\"],\"TSDeclareMethod\":[\"decorators\",\"key\",\"typeParameters\",\"params\",\"returnType\"],\"TSQualifiedName\":[\"left\",\"right\"],\"TSCallSignatureDeclaration\":[\"typeParameters\",\"parameters\",\"typeAnnotation\"],\"TSConstructSignatureDeclaration\":[\"typeParameters\",\"parameters\",\"typeAnnotation\"],\"TSPropertySignature\":[\"key\",\"typeAnnotation\",\"initializer\"],\"TSMethodSignature\":[\"key\",\"typeParameters\",\"parameters\",\"typeAnnotation\"],\"TSIndexSignature\":[\"parameters\",\"typeAnnotation\"],\"TSAnyKeyword\":[],\"TSNumberKeyword\":[],\"TSObjectKeyword\":[],\"TSBooleanKeyword\":[],\"TSStringKeyword\":[],\"TSSymbolKeyword\":[],\"TSVoidKeyword\":[],\"TSUndefinedKeyword\":[],\"TSNullKeyword\":[],\"TSNeverKeyword\":[],\"TSThisType\":[],\"TSFunctionType\":[\"typeParameters\",\"typeAnnotation\"],\"TSConstructorType\":[\"typeParameters\",\"typeAnnotation\"],\"TSTypeReference\":[\"typeName\",\"typeParameters\"],\"TSTypePredicate\":[\"parameterName\",\"typeAnnotation\"],\"TSTypeQuery\":[\"exprName\"],\"TSTypeLiteral\":[\"members\"],\"TSArrayType\":[\"elementType\"],\"TSTupleType\":[\"elementTypes\"],\"TSUnionType\":[\"types\"],\"TSIntersectionType\":[\"types\"],\"TSParenthesizedType\":[\"typeAnnotation\"],\"TSTypeOperator\":[\"typeAnnotation\"],\"TSIndexedAccessType\":[\"objectType\",\"indexType\"],\"TSMappedType\":[\"typeParameter\",\"typeAnnotation\"],\"TSLiteralType\":[\"literal\"],\"TSExpressionWithTypeArguments\":[\"expression\",\"typeParameters\"],\"TSInterfaceDeclaration\":[\"id\",\"typeParameters\",\"extends\",\"body\"],\"TSInterfaceBody\":[\"body\"],\"TSTypeAliasDeclaration\":[\"id\",\"typeParameters\",\"typeAnnotation\"],\"TSAsExpression\":[\"expression\",\"typeAnnotation\"],\"TSTypeAssertion\":[\"typeAnnotation\",\"expression\"],\"TSEnumDeclaration\":[\"id\",\"members\"],\"TSEnumMember\":[\"id\",\"initializer\"],\"TSModuleDeclaration\":[\"id\",\"body\"],\"TSModuleBlock\":[\"body\"],\"TSImportEqualsDeclaration\":[\"id\",\"moduleReference\"],\"TSExternalModuleReference\":[\"expression\"],\"TSNonNullExpression\":[\"expression\"],\"TSExportAssignment\":[\"expression\"],\"TSNamespaceExportDeclaration\":[\"id\"],\"TSTypeAnnotation\":[\"typeAnnotation\"],\"TSTypeParameterInstantiation\":[\"params\"],\"TSTypeParameterDeclaration\":[\"params\"],\"TSTypeParameter\":[\"constraint\",\"default\"]}",
     _powerAssertRecorder = function () { function PowerAssertRecorder() { this.captured = []; } PowerAssertRecorder.prototype._capt = function _capt(value, espath) { this.captured.push({ value: value, espath: espath }); return value; }; PowerAssertRecorder.prototype._expr = function _expr(value, source) { var capturedValues = this.captured; this.captured = []; return { powerAssertContext: { value: value, events: capturedValues }, source: source }; }; return PowerAssertRecorder; }(),
     _rec = new _powerAssertRecorder(),
     _rec2 = new _powerAssertRecorder(),
@@ -15,100 +15,94 @@ var _powerAssertVisitorKeys = '{"ArrayExpression":["elements"],"AssignmentExpres
     _rec11 = new _powerAssertRecorder(),
     _rec12 = new _powerAssertRecorder();
 
-assert(_rec._expr(_rec._capt(falsyStr, 'arguments/0'), {
-  content: 'assert(falsyStr)',
-  filepath: 'test/fixtures/Identifier/fixture.js',
+assert(_rec._expr(_rec._capt(falsyStr, "arguments/0"), {
+  content: "assert(falsyStr)",
+  filepath: "test/fixtures/Identifier/fixture.js",
   line: 3,
-  ast: '{"type":"CallExpression","callee":{"type":"Identifier","name":"assert","range":[0,6]},"arguments":[{"type":"Identifier","name":"falsyStr","range":[7,15]}],"range":[0,16]}',
-  tokens: '[{"type":{"label":"name"},"value":"assert","range":[0,6]},{"type":{"label":"("},"range":[6,7]},{"type":{"label":"name"},"value":"falsyStr","range":[7,15]},{"type":{"label":")"},"range":[15,16]}]',
+  ast: "{\"type\":\"CallExpression\",\"callee\":{\"type\":\"Identifier\",\"name\":\"assert\",\"range\":[0,6]},\"arguments\":[{\"type\":\"Identifier\",\"name\":\"falsyStr\",\"range\":[7,15]}],\"range\":[0,16]}",
+  tokens: "[{\"type\":{\"label\":\"name\"},\"value\":\"assert\",\"range\":[0,6]},{\"type\":{\"label\":\"(\"},\"range\":[6,7]},{\"type\":{\"label\":\"name\"},\"value\":\"falsyStr\",\"range\":[7,15]},{\"type\":{\"label\":\")\"},\"range\":[15,16]}]",
   visitorKeys: _powerAssertVisitorKeys
 }));
-
-assert(_rec2._expr(_rec2._capt(falsyStr, 'arguments/0'), {
-  content: 'assert(falsyStr, messageStr)',
-  filepath: 'test/fixtures/Identifier/fixture.js',
+assert(_rec2._expr(_rec2._capt(falsyStr, "arguments/0"), {
+  content: "assert(falsyStr, messageStr)",
+  filepath: "test/fixtures/Identifier/fixture.js",
   line: 5,
-  ast: '{"type":"CallExpression","callee":{"type":"Identifier","name":"assert","range":[0,6]},"arguments":[{"type":"Identifier","name":"falsyStr","range":[7,15]},{"type":"Identifier","name":"messageStr","range":[17,27]}],"range":[0,28]}',
-  tokens: '[{"type":{"label":"name"},"value":"assert","range":[0,6]},{"type":{"label":"("},"range":[6,7]},{"type":{"label":"name"},"value":"falsyStr","range":[7,15]},{"type":{"label":","},"range":[15,16]},{"type":{"label":"name"},"value":"messageStr","range":[17,27]},{"type":{"label":")"},"range":[27,28]}]',
+  ast: "{\"type\":\"CallExpression\",\"callee\":{\"type\":\"Identifier\",\"name\":\"assert\",\"range\":[0,6]},\"arguments\":[{\"type\":\"Identifier\",\"name\":\"falsyStr\",\"range\":[7,15]},{\"type\":\"Identifier\",\"name\":\"messageStr\",\"range\":[17,27]}],\"range\":[0,28]}",
+  tokens: "[{\"type\":{\"label\":\"name\"},\"value\":\"assert\",\"range\":[0,6]},{\"type\":{\"label\":\"(\"},\"range\":[6,7]},{\"type\":{\"label\":\"name\"},\"value\":\"falsyStr\",\"range\":[7,15]},{\"type\":{\"label\":\",\"},\"range\":[15,16]},{\"type\":{\"label\":\"name\"},\"value\":\"messageStr\",\"range\":[17,27]},{\"type\":{\"label\":\")\"},\"range\":[27,28]}]",
   visitorKeys: _powerAssertVisitorKeys
 }), messageStr);
-
-assert.equal(_rec3._expr(_rec3._capt(str, 'arguments/0'), {
-  content: 'assert.equal(str, anotherStr)',
-  filepath: 'test/fixtures/Identifier/fixture.js',
+assert.equal(_rec3._expr(_rec3._capt(str, "arguments/0"), {
+  content: "assert.equal(str, anotherStr)",
+  filepath: "test/fixtures/Identifier/fixture.js",
   line: 7,
-  ast: '{"type":"CallExpression","callee":{"type":"MemberExpression","object":{"type":"Identifier","name":"assert","range":[0,6]},"property":{"type":"Identifier","name":"equal","range":[7,12]},"computed":false,"range":[0,12]},"arguments":[{"type":"Identifier","name":"str","range":[13,16]},{"type":"Identifier","name":"anotherStr","range":[18,28]}],"range":[0,29]}',
-  tokens: '[{"type":{"label":"name"},"value":"assert","range":[0,6]},{"type":{"label":"."},"range":[6,7]},{"type":{"label":"name"},"value":"equal","range":[7,12]},{"type":{"label":"("},"range":[12,13]},{"type":{"label":"name"},"value":"str","range":[13,16]},{"type":{"label":","},"range":[16,17]},{"type":{"label":"name"},"value":"anotherStr","range":[18,28]},{"type":{"label":")"},"range":[28,29]}]',
+  ast: "{\"type\":\"CallExpression\",\"callee\":{\"type\":\"MemberExpression\",\"object\":{\"type\":\"Identifier\",\"name\":\"assert\",\"range\":[0,6]},\"property\":{\"type\":\"Identifier\",\"name\":\"equal\",\"range\":[7,12]},\"computed\":false,\"range\":[0,12]},\"arguments\":[{\"type\":\"Identifier\",\"name\":\"str\",\"range\":[13,16]},{\"type\":\"Identifier\",\"name\":\"anotherStr\",\"range\":[18,28]}],\"range\":[0,29]}",
+  tokens: "[{\"type\":{\"label\":\"name\"},\"value\":\"assert\",\"range\":[0,6]},{\"type\":{\"label\":\".\"},\"range\":[6,7]},{\"type\":{\"label\":\"name\"},\"value\":\"equal\",\"range\":[7,12]},{\"type\":{\"label\":\"(\"},\"range\":[12,13]},{\"type\":{\"label\":\"name\"},\"value\":\"str\",\"range\":[13,16]},{\"type\":{\"label\":\",\"},\"range\":[16,17]},{\"type\":{\"label\":\"name\"},\"value\":\"anotherStr\",\"range\":[18,28]},{\"type\":{\"label\":\")\"},\"range\":[28,29]}]",
   visitorKeys: _powerAssertVisitorKeys
-}), _rec4._expr(_rec4._capt(anotherStr, 'arguments/1'), {
-  content: 'assert.equal(str, anotherStr)',
-  filepath: 'test/fixtures/Identifier/fixture.js',
+}), _rec4._expr(_rec4._capt(anotherStr, "arguments/1"), {
+  content: "assert.equal(str, anotherStr)",
+  filepath: "test/fixtures/Identifier/fixture.js",
   line: 7,
-  ast: '{"type":"CallExpression","callee":{"type":"MemberExpression","object":{"type":"Identifier","name":"assert","range":[0,6]},"property":{"type":"Identifier","name":"equal","range":[7,12]},"computed":false,"range":[0,12]},"arguments":[{"type":"Identifier","name":"str","range":[13,16]},{"type":"Identifier","name":"anotherStr","range":[18,28]}],"range":[0,29]}',
-  tokens: '[{"type":{"label":"name"},"value":"assert","range":[0,6]},{"type":{"label":"."},"range":[6,7]},{"type":{"label":"name"},"value":"equal","range":[7,12]},{"type":{"label":"("},"range":[12,13]},{"type":{"label":"name"},"value":"str","range":[13,16]},{"type":{"label":","},"range":[16,17]},{"type":{"label":"name"},"value":"anotherStr","range":[18,28]},{"type":{"label":")"},"range":[28,29]}]',
+  ast: "{\"type\":\"CallExpression\",\"callee\":{\"type\":\"MemberExpression\",\"object\":{\"type\":\"Identifier\",\"name\":\"assert\",\"range\":[0,6]},\"property\":{\"type\":\"Identifier\",\"name\":\"equal\",\"range\":[7,12]},\"computed\":false,\"range\":[0,12]},\"arguments\":[{\"type\":\"Identifier\",\"name\":\"str\",\"range\":[13,16]},{\"type\":\"Identifier\",\"name\":\"anotherStr\",\"range\":[18,28]}],\"range\":[0,29]}",
+  tokens: "[{\"type\":{\"label\":\"name\"},\"value\":\"assert\",\"range\":[0,6]},{\"type\":{\"label\":\".\"},\"range\":[6,7]},{\"type\":{\"label\":\"name\"},\"value\":\"equal\",\"range\":[7,12]},{\"type\":{\"label\":\"(\"},\"range\":[12,13]},{\"type\":{\"label\":\"name\"},\"value\":\"str\",\"range\":[13,16]},{\"type\":{\"label\":\",\"},\"range\":[16,17]},{\"type\":{\"label\":\"name\"},\"value\":\"anotherStr\",\"range\":[18,28]},{\"type\":{\"label\":\")\"},\"range\":[28,29]}]",
   visitorKeys: _powerAssertVisitorKeys
 }));
-
-assert.equal(_rec5._expr(_rec5._capt(str, 'arguments/0'), {
-  content: 'assert.equal(str, anotherStr)',
-  filepath: 'test/fixtures/Identifier/fixture.js',
+assert.equal(_rec5._expr(_rec5._capt(str, "arguments/0"), {
+  content: "assert.equal(str, anotherStr)",
+  filepath: "test/fixtures/Identifier/fixture.js",
   line: 9,
-  ast: '{"type":"CallExpression","callee":{"type":"MemberExpression","object":{"type":"Identifier","name":"assert","range":[0,6]},"property":{"type":"Identifier","name":"equal","range":[7,12]},"computed":false,"range":[0,12]},"arguments":[{"type":"Identifier","name":"str","range":[13,16]},{"type":"Identifier","name":"anotherStr","range":[18,28]}],"range":[0,29]}',
-  tokens: '[{"type":{"label":"name"},"value":"assert","range":[0,6]},{"type":{"label":"."},"range":[6,7]},{"type":{"label":"name"},"value":"equal","range":[7,12]},{"type":{"label":"("},"range":[12,13]},{"type":{"label":"name"},"value":"str","range":[13,16]},{"type":{"label":","},"range":[16,17]},{"type":{"label":"name"},"value":"anotherStr","range":[18,28]},{"type":{"label":")"},"range":[28,29]}]',
+  ast: "{\"type\":\"CallExpression\",\"callee\":{\"type\":\"MemberExpression\",\"object\":{\"type\":\"Identifier\",\"name\":\"assert\",\"range\":[0,6]},\"property\":{\"type\":\"Identifier\",\"name\":\"equal\",\"range\":[7,12]},\"computed\":false,\"range\":[0,12]},\"arguments\":[{\"type\":\"Identifier\",\"name\":\"str\",\"range\":[13,16]},{\"type\":\"Identifier\",\"name\":\"anotherStr\",\"range\":[18,28]}],\"range\":[0,29]}",
+  tokens: "[{\"type\":{\"label\":\"name\"},\"value\":\"assert\",\"range\":[0,6]},{\"type\":{\"label\":\".\"},\"range\":[6,7]},{\"type\":{\"label\":\"name\"},\"value\":\"equal\",\"range\":[7,12]},{\"type\":{\"label\":\"(\"},\"range\":[12,13]},{\"type\":{\"label\":\"name\"},\"value\":\"str\",\"range\":[13,16]},{\"type\":{\"label\":\",\"},\"range\":[16,17]},{\"type\":{\"label\":\"name\"},\"value\":\"anotherStr\",\"range\":[18,28]},{\"type\":{\"label\":\")\"},\"range\":[28,29]}]",
   visitorKeys: _powerAssertVisitorKeys
-}), _rec6._expr(_rec6._capt(anotherStr, 'arguments/1'), {
-  content: 'assert.equal(str, anotherStr)',
-  filepath: 'test/fixtures/Identifier/fixture.js',
+}), _rec6._expr(_rec6._capt(anotherStr, "arguments/1"), {
+  content: "assert.equal(str, anotherStr)",
+  filepath: "test/fixtures/Identifier/fixture.js",
   line: 9,
-  ast: '{"type":"CallExpression","callee":{"type":"MemberExpression","object":{"type":"Identifier","name":"assert","range":[0,6]},"property":{"type":"Identifier","name":"equal","range":[7,12]},"computed":false,"range":[0,12]},"arguments":[{"type":"Identifier","name":"str","range":[13,16]},{"type":"Identifier","name":"anotherStr","range":[18,28]}],"range":[0,29]}',
-  tokens: '[{"type":{"label":"name"},"value":"assert","range":[0,6]},{"type":{"label":"."},"range":[6,7]},{"type":{"label":"name"},"value":"equal","range":[7,12]},{"type":{"label":"("},"range":[12,13]},{"type":{"label":"name"},"value":"str","range":[13,16]},{"type":{"label":","},"range":[16,17]},{"type":{"label":"name"},"value":"anotherStr","range":[18,28]},{"type":{"label":")"},"range":[28,29]}]',
+  ast: "{\"type\":\"CallExpression\",\"callee\":{\"type\":\"MemberExpression\",\"object\":{\"type\":\"Identifier\",\"name\":\"assert\",\"range\":[0,6]},\"property\":{\"type\":\"Identifier\",\"name\":\"equal\",\"range\":[7,12]},\"computed\":false,\"range\":[0,12]},\"arguments\":[{\"type\":\"Identifier\",\"name\":\"str\",\"range\":[13,16]},{\"type\":\"Identifier\",\"name\":\"anotherStr\",\"range\":[18,28]}],\"range\":[0,29]}",
+  tokens: "[{\"type\":{\"label\":\"name\"},\"value\":\"assert\",\"range\":[0,6]},{\"type\":{\"label\":\".\"},\"range\":[6,7]},{\"type\":{\"label\":\"name\"},\"value\":\"equal\",\"range\":[7,12]},{\"type\":{\"label\":\"(\"},\"range\":[12,13]},{\"type\":{\"label\":\"name\"},\"value\":\"str\",\"range\":[13,16]},{\"type\":{\"label\":\",\"},\"range\":[16,17]},{\"type\":{\"label\":\"name\"},\"value\":\"anotherStr\",\"range\":[18,28]},{\"type\":{\"label\":\")\"},\"range\":[28,29]}]",
   visitorKeys: _powerAssertVisitorKeys
 }));
-
-assert.equal(_rec7._expr(_rec7._capt(str, 'arguments/0'), {
-  content: 'assert.equal(str, anotherStr, messageStr)',
-  filepath: 'test/fixtures/Identifier/fixture.js',
+assert.equal(_rec7._expr(_rec7._capt(str, "arguments/0"), {
+  content: "assert.equal(str, anotherStr, messageStr)",
+  filepath: "test/fixtures/Identifier/fixture.js",
   line: 14,
-  ast: '{"type":"CallExpression","callee":{"type":"MemberExpression","object":{"type":"Identifier","name":"assert","range":[0,6]},"property":{"type":"Identifier","name":"equal","range":[7,12]},"computed":false,"range":[0,12]},"arguments":[{"type":"Identifier","name":"str","range":[13,16]},{"type":"Identifier","name":"anotherStr","range":[18,28]},{"type":"Identifier","name":"messageStr","range":[30,40]}],"range":[0,41]}',
-  tokens: '[{"type":{"label":"name"},"value":"assert","range":[0,6]},{"type":{"label":"."},"range":[6,7]},{"type":{"label":"name"},"value":"equal","range":[7,12]},{"type":{"label":"("},"range":[12,13]},{"type":{"label":"name"},"value":"str","range":[13,16]},{"type":{"label":","},"range":[16,17]},{"type":{"label":"name"},"value":"anotherStr","range":[18,28]},{"type":{"label":","},"range":[28,29]},{"type":{"label":"name"},"value":"messageStr","range":[30,40]},{"type":{"label":")"},"range":[40,41]}]',
+  ast: "{\"type\":\"CallExpression\",\"callee\":{\"type\":\"MemberExpression\",\"object\":{\"type\":\"Identifier\",\"name\":\"assert\",\"range\":[0,6]},\"property\":{\"type\":\"Identifier\",\"name\":\"equal\",\"range\":[7,12]},\"computed\":false,\"range\":[0,12]},\"arguments\":[{\"type\":\"Identifier\",\"name\":\"str\",\"range\":[13,16]},{\"type\":\"Identifier\",\"name\":\"anotherStr\",\"range\":[18,28]},{\"type\":\"Identifier\",\"name\":\"messageStr\",\"range\":[30,40]}],\"range\":[0,41]}",
+  tokens: "[{\"type\":{\"label\":\"name\"},\"value\":\"assert\",\"range\":[0,6]},{\"type\":{\"label\":\".\"},\"range\":[6,7]},{\"type\":{\"label\":\"name\"},\"value\":\"equal\",\"range\":[7,12]},{\"type\":{\"label\":\"(\"},\"range\":[12,13]},{\"type\":{\"label\":\"name\"},\"value\":\"str\",\"range\":[13,16]},{\"type\":{\"label\":\",\"},\"range\":[16,17]},{\"type\":{\"label\":\"name\"},\"value\":\"anotherStr\",\"range\":[18,28]},{\"type\":{\"label\":\",\"},\"range\":[28,29]},{\"type\":{\"label\":\"name\"},\"value\":\"messageStr\",\"range\":[30,40]},{\"type\":{\"label\":\")\"},\"range\":[40,41]}]",
   visitorKeys: _powerAssertVisitorKeys
-}), _rec8._expr(_rec8._capt(anotherStr, 'arguments/1'), {
-  content: 'assert.equal(str, anotherStr, messageStr)',
-  filepath: 'test/fixtures/Identifier/fixture.js',
+}), _rec8._expr(_rec8._capt(anotherStr, "arguments/1"), {
+  content: "assert.equal(str, anotherStr, messageStr)",
+  filepath: "test/fixtures/Identifier/fixture.js",
   line: 14,
-  ast: '{"type":"CallExpression","callee":{"type":"MemberExpression","object":{"type":"Identifier","name":"assert","range":[0,6]},"property":{"type":"Identifier","name":"equal","range":[7,12]},"computed":false,"range":[0,12]},"arguments":[{"type":"Identifier","name":"str","range":[13,16]},{"type":"Identifier","name":"anotherStr","range":[18,28]},{"type":"Identifier","name":"messageStr","range":[30,40]}],"range":[0,41]}',
-  tokens: '[{"type":{"label":"name"},"value":"assert","range":[0,6]},{"type":{"label":"."},"range":[6,7]},{"type":{"label":"name"},"value":"equal","range":[7,12]},{"type":{"label":"("},"range":[12,13]},{"type":{"label":"name"},"value":"str","range":[13,16]},{"type":{"label":","},"range":[16,17]},{"type":{"label":"name"},"value":"anotherStr","range":[18,28]},{"type":{"label":","},"range":[28,29]},{"type":{"label":"name"},"value":"messageStr","range":[30,40]},{"type":{"label":")"},"range":[40,41]}]',
+  ast: "{\"type\":\"CallExpression\",\"callee\":{\"type\":\"MemberExpression\",\"object\":{\"type\":\"Identifier\",\"name\":\"assert\",\"range\":[0,6]},\"property\":{\"type\":\"Identifier\",\"name\":\"equal\",\"range\":[7,12]},\"computed\":false,\"range\":[0,12]},\"arguments\":[{\"type\":\"Identifier\",\"name\":\"str\",\"range\":[13,16]},{\"type\":\"Identifier\",\"name\":\"anotherStr\",\"range\":[18,28]},{\"type\":\"Identifier\",\"name\":\"messageStr\",\"range\":[30,40]}],\"range\":[0,41]}",
+  tokens: "[{\"type\":{\"label\":\"name\"},\"value\":\"assert\",\"range\":[0,6]},{\"type\":{\"label\":\".\"},\"range\":[6,7]},{\"type\":{\"label\":\"name\"},\"value\":\"equal\",\"range\":[7,12]},{\"type\":{\"label\":\"(\"},\"range\":[12,13]},{\"type\":{\"label\":\"name\"},\"value\":\"str\",\"range\":[13,16]},{\"type\":{\"label\":\",\"},\"range\":[16,17]},{\"type\":{\"label\":\"name\"},\"value\":\"anotherStr\",\"range\":[18,28]},{\"type\":{\"label\":\",\"},\"range\":[28,29]},{\"type\":{\"label\":\"name\"},\"value\":\"messageStr\",\"range\":[30,40]},{\"type\":{\"label\":\")\"},\"range\":[40,41]}]",
   visitorKeys: _powerAssertVisitorKeys
 }), messageStr);
-
-assert.equal(_rec9._expr(_rec9._capt(str, 'arguments/0'), {
-  content: 'assert.equal(str, anotherStr)',
-  filepath: 'test/fixtures/Identifier/fixture.js',
+assert.equal(_rec9._expr(_rec9._capt(str, "arguments/0"), {
+  content: "assert.equal(str, anotherStr)",
+  filepath: "test/fixtures/Identifier/fixture.js",
   line: 16,
-  ast: '{"type":"CallExpression","callee":{"type":"MemberExpression","object":{"type":"Identifier","name":"assert","range":[0,6]},"property":{"type":"Identifier","name":"equal","range":[7,12]},"computed":false,"range":[0,12]},"arguments":[{"type":"Identifier","name":"str","range":[13,16]},{"type":"Identifier","name":"anotherStr","range":[18,28]}],"range":[0,29]}',
-  tokens: '[{"type":{"label":"name"},"value":"assert","range":[0,6]},{"type":{"label":"."},"range":[6,7]},{"type":{"label":"name"},"value":"equal","range":[7,12]},{"type":{"label":"("},"range":[12,13]},{"type":{"label":"name"},"value":"str","range":[13,16]},{"type":{"label":","},"range":[16,17]},{"type":{"label":"name"},"value":"anotherStr","range":[18,28]},{"type":{"label":")"},"range":[28,29]}]',
+  ast: "{\"type\":\"CallExpression\",\"callee\":{\"type\":\"MemberExpression\",\"object\":{\"type\":\"Identifier\",\"name\":\"assert\",\"range\":[0,6]},\"property\":{\"type\":\"Identifier\",\"name\":\"equal\",\"range\":[7,12]},\"computed\":false,\"range\":[0,12]},\"arguments\":[{\"type\":\"Identifier\",\"name\":\"str\",\"range\":[13,16]},{\"type\":\"Identifier\",\"name\":\"anotherStr\",\"range\":[18,28]}],\"range\":[0,29]}",
+  tokens: "[{\"type\":{\"label\":\"name\"},\"value\":\"assert\",\"range\":[0,6]},{\"type\":{\"label\":\".\"},\"range\":[6,7]},{\"type\":{\"label\":\"name\"},\"value\":\"equal\",\"range\":[7,12]},{\"type\":{\"label\":\"(\"},\"range\":[12,13]},{\"type\":{\"label\":\"name\"},\"value\":\"str\",\"range\":[13,16]},{\"type\":{\"label\":\",\"},\"range\":[16,17]},{\"type\":{\"label\":\"name\"},\"value\":\"anotherStr\",\"range\":[18,28]},{\"type\":{\"label\":\")\"},\"range\":[28,29]}]",
   visitorKeys: _powerAssertVisitorKeys
-}), _rec10._expr(_rec10._capt(anotherStr, 'arguments/1'), {
-  content: 'assert.equal(str, anotherStr)',
-  filepath: 'test/fixtures/Identifier/fixture.js',
+}), _rec10._expr(_rec10._capt(anotherStr, "arguments/1"), {
+  content: "assert.equal(str, anotherStr)",
+  filepath: "test/fixtures/Identifier/fixture.js",
   line: 16,
-  ast: '{"type":"CallExpression","callee":{"type":"MemberExpression","object":{"type":"Identifier","name":"assert","range":[0,6]},"property":{"type":"Identifier","name":"equal","range":[7,12]},"computed":false,"range":[0,12]},"arguments":[{"type":"Identifier","name":"str","range":[13,16]},{"type":"Identifier","name":"anotherStr","range":[18,28]}],"range":[0,29]}',
-  tokens: '[{"type":{"label":"name"},"value":"assert","range":[0,6]},{"type":{"label":"."},"range":[6,7]},{"type":{"label":"name"},"value":"equal","range":[7,12]},{"type":{"label":"("},"range":[12,13]},{"type":{"label":"name"},"value":"str","range":[13,16]},{"type":{"label":","},"range":[16,17]},{"type":{"label":"name"},"value":"anotherStr","range":[18,28]},{"type":{"label":")"},"range":[28,29]}]',
+  ast: "{\"type\":\"CallExpression\",\"callee\":{\"type\":\"MemberExpression\",\"object\":{\"type\":\"Identifier\",\"name\":\"assert\",\"range\":[0,6]},\"property\":{\"type\":\"Identifier\",\"name\":\"equal\",\"range\":[7,12]},\"computed\":false,\"range\":[0,12]},\"arguments\":[{\"type\":\"Identifier\",\"name\":\"str\",\"range\":[13,16]},{\"type\":\"Identifier\",\"name\":\"anotherStr\",\"range\":[18,28]}],\"range\":[0,29]}",
+  tokens: "[{\"type\":{\"label\":\"name\"},\"value\":\"assert\",\"range\":[0,6]},{\"type\":{\"label\":\".\"},\"range\":[6,7]},{\"type\":{\"label\":\"name\"},\"value\":\"equal\",\"range\":[7,12]},{\"type\":{\"label\":\"(\"},\"range\":[12,13]},{\"type\":{\"label\":\"name\"},\"value\":\"str\",\"range\":[13,16]},{\"type\":{\"label\":\",\"},\"range\":[16,17]},{\"type\":{\"label\":\"name\"},\"value\":\"anotherStr\",\"range\":[18,28]},{\"type\":{\"label\":\")\"},\"range\":[28,29]}]",
   visitorKeys: _powerAssertVisitorKeys
 }));
-
-assert.equal(_rec11._expr(_rec11._capt(str, 'arguments/0'), {
-  content: 'assert.equal(str, yetAnotherStr)',
-  filepath: 'test/fixtures/Identifier/fixture.js',
+assert.equal(_rec11._expr(_rec11._capt(str, "arguments/0"), {
+  content: "assert.equal(str, yetAnotherStr)",
+  filepath: "test/fixtures/Identifier/fixture.js",
   line: 21,
-  ast: '{"type":"CallExpression","callee":{"type":"MemberExpression","object":{"type":"Identifier","name":"assert","range":[0,6]},"property":{"type":"Identifier","name":"equal","range":[7,12]},"computed":false,"range":[0,12]},"arguments":[{"type":"Identifier","name":"str","range":[13,16]},{"type":"Identifier","name":"yetAnotherStr","range":[18,31]}],"range":[0,32]}',
-  tokens: '[{"type":{"label":"name"},"value":"assert","range":[0,6]},{"type":{"label":"."},"range":[6,7]},{"type":{"label":"name"},"value":"equal","range":[7,12]},{"type":{"label":"("},"range":[12,13]},{"type":{"label":"name"},"value":"str","range":[13,16]},{"type":{"label":","},"range":[16,17]},{"type":{"label":"name"},"value":"yetAnotherStr","range":[18,31]},{"type":{"label":")"},"range":[31,32]}]',
+  ast: "{\"type\":\"CallExpression\",\"callee\":{\"type\":\"MemberExpression\",\"object\":{\"type\":\"Identifier\",\"name\":\"assert\",\"range\":[0,6]},\"property\":{\"type\":\"Identifier\",\"name\":\"equal\",\"range\":[7,12]},\"computed\":false,\"range\":[0,12]},\"arguments\":[{\"type\":\"Identifier\",\"name\":\"str\",\"range\":[13,16]},{\"type\":\"Identifier\",\"name\":\"yetAnotherStr\",\"range\":[18,31]}],\"range\":[0,32]}",
+  tokens: "[{\"type\":{\"label\":\"name\"},\"value\":\"assert\",\"range\":[0,6]},{\"type\":{\"label\":\".\"},\"range\":[6,7]},{\"type\":{\"label\":\"name\"},\"value\":\"equal\",\"range\":[7,12]},{\"type\":{\"label\":\"(\"},\"range\":[12,13]},{\"type\":{\"label\":\"name\"},\"value\":\"str\",\"range\":[13,16]},{\"type\":{\"label\":\",\"},\"range\":[16,17]},{\"type\":{\"label\":\"name\"},\"value\":\"yetAnotherStr\",\"range\":[18,31]},{\"type\":{\"label\":\")\"},\"range\":[31,32]}]",
   visitorKeys: _powerAssertVisitorKeys
-}), _rec12._expr(_rec12._capt(yetAnotherStr, 'arguments/1'), {
-  content: 'assert.equal(str, yetAnotherStr)',
-  filepath: 'test/fixtures/Identifier/fixture.js',
+}), _rec12._expr(_rec12._capt(yetAnotherStr, "arguments/1"), {
+  content: "assert.equal(str, yetAnotherStr)",
+  filepath: "test/fixtures/Identifier/fixture.js",
   line: 21,
-  ast: '{"type":"CallExpression","callee":{"type":"MemberExpression","object":{"type":"Identifier","name":"assert","range":[0,6]},"property":{"type":"Identifier","name":"equal","range":[7,12]},"computed":false,"range":[0,12]},"arguments":[{"type":"Identifier","name":"str","range":[13,16]},{"type":"Identifier","name":"yetAnotherStr","range":[18,31]}],"range":[0,32]}',
-  tokens: '[{"type":{"label":"name"},"value":"assert","range":[0,6]},{"type":{"label":"."},"range":[6,7]},{"type":{"label":"name"},"value":"equal","range":[7,12]},{"type":{"label":"("},"range":[12,13]},{"type":{"label":"name"},"value":"str","range":[13,16]},{"type":{"label":","},"range":[16,17]},{"type":{"label":"name"},"value":"yetAnotherStr","range":[18,31]},{"type":{"label":")"},"range":[31,32]}]',
+  ast: "{\"type\":\"CallExpression\",\"callee\":{\"type\":\"MemberExpression\",\"object\":{\"type\":\"Identifier\",\"name\":\"assert\",\"range\":[0,6]},\"property\":{\"type\":\"Identifier\",\"name\":\"equal\",\"range\":[7,12]},\"computed\":false,\"range\":[0,12]},\"arguments\":[{\"type\":\"Identifier\",\"name\":\"str\",\"range\":[13,16]},{\"type\":\"Identifier\",\"name\":\"yetAnotherStr\",\"range\":[18,31]}],\"range\":[0,32]}",
+  tokens: "[{\"type\":{\"label\":\"name\"},\"value\":\"assert\",\"range\":[0,6]},{\"type\":{\"label\":\".\"},\"range\":[6,7]},{\"type\":{\"label\":\"name\"},\"value\":\"equal\",\"range\":[7,12]},{\"type\":{\"label\":\"(\"},\"range\":[12,13]},{\"type\":{\"label\":\"name\"},\"value\":\"str\",\"range\":[13,16]},{\"type\":{\"label\":\",\"},\"range\":[16,17]},{\"type\":{\"label\":\"name\"},\"value\":\"yetAnotherStr\",\"range\":[18,31]},{\"type\":{\"label\":\")\"},\"range\":[31,32]}]",
   visitorKeys: _powerAssertVisitorKeys
 }));
diff --git a/test/fixtures/Identifier/expected.js b/test/fixtures/Identifier/expected.js
index 0629107..68228b3 100644
--- a/test/fixtures/Identifier/expected.js
+++ b/test/fixtures/Identifier/expected.js
@@ -14,64 +14,58 @@ var _powerAssertRecorder = function () { function PowerAssertRecorder() { this.c
     _rec11 = new _powerAssertRecorder(),
     _rec12 = new _powerAssertRecorder();
 
-assert(_rec._expr(_rec._capt(falsyStr, 'arguments/0'), {
-  content: 'assert(falsyStr)',
-  filepath: 'test/fixtures/Identifier/fixture.js',
+assert(_rec._expr(_rec._capt(falsyStr, "arguments/0"), {
+  content: "assert(falsyStr)",
+  filepath: "test/fixtures/Identifier/fixture.js",
   line: 3
 }));
-
-assert(_rec2._expr(_rec2._capt(falsyStr, 'arguments/0'), {
-  content: 'assert(falsyStr, messageStr)',
-  filepath: 'test/fixtures/Identifier/fixture.js',
+assert(_rec2._expr(_rec2._capt(falsyStr, "arguments/0"), {
+  content: "assert(falsyStr, messageStr)",
+  filepath: "test/fixtures/Identifier/fixture.js",
   line: 5
 }), messageStr);
-
-assert.equal(_rec3._expr(_rec3._capt(str, 'arguments/0'), {
-  content: 'assert.equal(str, anotherStr)',
-  filepath: 'test/fixtures/Identifier/fixture.js',
+assert.equal(_rec3._expr(_rec3._capt(str, "arguments/0"), {
+  content: "assert.equal(str, anotherStr)",
+  filepath: "test/fixtures/Identifier/fixture.js",
   line: 7
-}), _rec4._expr(_rec4._capt(anotherStr, 'arguments/1'), {
-  content: 'assert.equal(str, anotherStr)',
-  filepath: 'test/fixtures/Identifier/fixture.js',
+}), _rec4._expr(_rec4._capt(anotherStr, "arguments/1"), {
+  content: "assert.equal(str, anotherStr)",
+  filepath: "test/fixtures/Identifier/fixture.js",
   line: 7
 }));
-
-assert.equal(_rec5._expr(_rec5._capt(str, 'arguments/0'), {
-  content: 'assert.equal(str, anotherStr)',
-  filepath: 'test/fixtures/Identifier/fixture.js',
+assert.equal(_rec5._expr(_rec5._capt(str, "arguments/0"), {
+  content: "assert.equal(str, anotherStr)",
+  filepath: "test/fixtures/Identifier/fixture.js",
   line: 9
-}), _rec6._expr(_rec6._capt(anotherStr, 'arguments/1'), {
-  content: 'assert.equal(str, anotherStr)',
-  filepath: 'test/fixtures/Identifier/fixture.js',
+}), _rec6._expr(_rec6._capt(anotherStr, "arguments/1"), {
+  content: "assert.equal(str, anotherStr)",
+  filepath: "test/fixtures/Identifier/fixture.js",
   line: 9
 }));
-
-assert.equal(_rec7._expr(_rec7._capt(str, 'arguments/0'), {
-  content: 'assert.equal(str, anotherStr, messageStr)',
-  filepath: 'test/fixtures/Identifier/fixture.js',
+assert.equal(_rec7._expr(_rec7._capt(str, "arguments/0"), {
+  content: "assert.equal(str, anotherStr, messageStr)",
+  filepath: "test/fixtures/Identifier/fixture.js",
   line: 14
-}), _rec8._expr(_rec8._capt(anotherStr, 'arguments/1'), {
-  content: 'assert.equal(str, anotherStr, messageStr)',
-  filepath: 'test/fixtures/Identifier/fixture.js',
+}), _rec8._expr(_rec8._capt(anotherStr, "arguments/1"), {
+  content: "assert.equal(str, anotherStr, messageStr)",
+  filepath: "test/fixtures/Identifier/fixture.js",
   line: 14
 }), messageStr);
-
-assert.equal(_rec9._expr(_rec9._capt(str, 'arguments/0'), {
-  content: 'assert.equal(str, anotherStr)',
-  filepath: 'test/fixtures/Identifier/fixture.js',
+assert.equal(_rec9._expr(_rec9._capt(str, "arguments/0"), {
+  content: "assert.equal(str, anotherStr)",
+  filepath: "test/fixtures/Identifier/fixture.js",
   line: 16
-}), _rec10._expr(_rec10._capt(anotherStr, 'arguments/1'), {
-  content: 'assert.equal(str, anotherStr)',
-  filepath: 'test/fixtures/Identifier/fixture.js',
+}), _rec10._expr(_rec10._capt(anotherStr, "arguments/1"), {
+  content: "assert.equal(str, anotherStr)",
+  filepath: "test/fixtures/Identifier/fixture.js",
   line: 16
 }));
-
-assert.equal(_rec11._expr(_rec11._capt(str, 'arguments/0'), {
-  content: 'assert.equal(str, yetAnotherStr)',
-  filepath: 'test/fixtures/Identifier/fixture.js',
+assert.equal(_rec11._expr(_rec11._capt(str, "arguments/0"), {
+  content: "assert.equal(str, yetAnotherStr)",
+  filepath: "test/fixtures/Identifier/fixture.js",
   line: 21
-}), _rec12._expr(_rec12._capt(yetAnotherStr, 'arguments/1'), {
-  content: 'assert.equal(str, yetAnotherStr)',
-  filepath: 'test/fixtures/Identifier/fixture.js',
+}), _rec12._expr(_rec12._capt(yetAnotherStr, "arguments/1"), {
+  content: "assert.equal(str, yetAnotherStr)",
+  filepath: "test/fixtures/Identifier/fixture.js",
   line: 21
 }));
diff --git a/test/fixtures/Literal/expected-presets-es2015.js b/test/fixtures/Literal/expected-presets-es2015.js
index 2fdc2f9..6e5549b 100644
--- a/test/fixtures/Literal/expected-presets-es2015.js
+++ b/test/fixtures/Literal/expected-presets-es2015.js
@@ -1,6 +1,6 @@
 'use strict';
 
-var _powerAssertVisitorKeys = '{"ArrayExpression":["elements"],"AssignmentExpression":["left","right"],"BinaryExpression":["left","right"],"Directive":["value"],"DirectiveLiteral":[],"BlockStatement":["directives","body"],"BreakStatement":["label"],"CallExpression":["callee","arguments"],"CatchClause":["param","body"],"ConditionalExpression":["test","consequent","alternate"],"ContinueStatement":["label"],"DebuggerStatement":[],"DoWhileStatement":["test","body"],"EmptyStatement":[],"ExpressionStatement":["expression"],"File":["program"],"ForInStatement":["left","right","body"],"ForStatement":["init","test","update","body"],"FunctionDeclaration":["id","params","body","returnType","typeParameters"],"FunctionExpression":["id","params","body","returnType","typeParameters"],"Identifier":["typeAnnotation"],"IfStatement":["test","consequent","alternate"],"LabeledStatement":["label","body"],"StringLiteral":[],"NumericLiteral":[],"NullLiteral":[],"BooleanLiteral":[],"RegExpLiteral":[],"LogicalExpression":["left","right"],"MemberExpression":["object","property"],"NewExpression":["callee","arguments"],"Program":["directives","body"],"ObjectExpression":["properties"],"ObjectMethod":["key","params","body","decorators","returnType","typeParameters"],"ObjectProperty":["key","value","decorators"],"RestElement":["argument","typeAnnotation"],"ReturnStatement":["argument"],"SequenceExpression":["expressions"],"SwitchCase":["test","consequent"],"SwitchStatement":["discriminant","cases"],"ThisExpression":[],"ThrowStatement":["argument"],"TryStatement":["block","handler","finalizer"],"UnaryExpression":["argument"],"UpdateExpression":["argument"],"VariableDeclaration":["declarations"],"VariableDeclarator":["id","init"],"WhileStatement":["test","body"],"WithStatement":["object","body"],"AssignmentPattern":["left","right"],"ArrayPattern":["elements","typeAnnotation"],"ArrowFunctionExpression":["params","body","returnType","typeParameters"],"ClassBody":["body"],"ClassDeclaration":["id","body","superClass","mixins","typeParameters","superTypeParameters","implements","decorators"],"ClassExpression":["id","body","superClass","mixins","typeParameters","superTypeParameters","implements","decorators"],"ExportAllDeclaration":["source"],"ExportDefaultDeclaration":["declaration"],"ExportNamedDeclaration":["declaration","specifiers","source"],"ExportSpecifier":["local","exported"],"ForOfStatement":["left","right","body"],"ImportDeclaration":["specifiers","source"],"ImportDefaultSpecifier":["local"],"ImportNamespaceSpecifier":["local"],"ImportSpecifier":["local","imported"],"MetaProperty":["meta","property"],"ClassMethod":["key","params","body","decorators","returnType","typeParameters"],"ObjectPattern":["properties","typeAnnotation"],"SpreadElement":["argument"],"Super":[],"TaggedTemplateExpression":["tag","quasi"],"TemplateElement":[],"TemplateLiteral":["quasis","expressions"],"YieldExpression":["argument"],"AnyTypeAnnotation":[],"ArrayTypeAnnotation":["elementType"],"BooleanTypeAnnotation":[],"BooleanLiteralTypeAnnotation":[],"NullLiteralTypeAnnotation":[],"ClassImplements":["id","typeParameters"],"ClassProperty":["key","value","typeAnnotation","decorators"],"DeclareClass":["id","typeParameters","extends","body"],"DeclareFunction":["id"],"DeclareInterface":["id","typeParameters","extends","body"],"DeclareModule":["id","body"],"DeclareModuleExports":["typeAnnotation"],"DeclareTypeAlias":["id","typeParameters","right"],"DeclareOpaqueType":["id","typeParameters","supertype"],"DeclareVariable":["id"],"DeclareExportDeclaration":["declaration","specifiers","source"],"ExistentialTypeParam":[],"FunctionTypeAnnotation":["typeParameters","params","rest","returnType"],"FunctionTypeParam":["name","typeAnnotation"],"GenericTypeAnnotation":["id","typeParameters"],"InterfaceExtends":["id","typeParameters"],"InterfaceDeclaration":["id","typeParameters","extends","body"],"IntersectionTypeAnnotation":["types"],"MixedTypeAnnotation":[],"EmptyTypeAnnotation":[],"NullableTypeAnnotation":["typeAnnotation"],"NumericLiteralTypeAnnotation":[],"NumberTypeAnnotation":[],"StringLiteralTypeAnnotation":[],"StringTypeAnnotation":[],"ThisTypeAnnotation":[],"TupleTypeAnnotation":["types"],"TypeofTypeAnnotation":["argument"],"TypeAlias":["id","typeParameters","right"],"OpaqueType":["id","typeParameters","impltype","supertype"],"TypeAnnotation":["typeAnnotation"],"TypeCastExpression":["expression","typeAnnotation"],"TypeParameter":["bound"],"TypeParameterDeclaration":["params"],"TypeParameterInstantiation":["params"],"ObjectTypeAnnotation":["properties","indexers","callProperties"],"ObjectTypeCallProperty":["value"],"ObjectTypeIndexer":["id","key","value"],"ObjectTypeProperty":["key","value"],"ObjectTypeSpreadProperty":["argument"],"QualifiedTypeIdentifier":["id","qualification"],"UnionTypeAnnotation":["types"],"VoidTypeAnnotation":[],"JSXAttribute":["name","value"],"JSXClosingElement":["name"],"JSXElement":["openingElement","children","closingElement"],"JSXEmptyExpression":[],"JSXExpressionContainer":["expression"],"JSXSpreadChild":["expression"],"JSXIdentifier":[],"JSXMemberExpression":["object","property"],"JSXNamespacedName":["namespace","name"],"JSXOpeningElement":["name","attributes"],"JSXSpreadAttribute":["argument"],"JSXText":[],"Noop":[],"ParenthesizedExpression":["expression"],"AwaitExpression":["argument"],"ForAwaitStatement":["left","right","body"],"BindExpression":["object","callee"],"Import":[],"Decorator":["expression"],"DoExpression":["body"],"ExportDefaultSpecifier":["exported"],"ExportNamespaceSpecifier":["exported"],"RestProperty":["argument"],"SpreadProperty":["argument"]}',
+var _powerAssertVisitorKeys = "{\"ArrayExpression\":[\"elements\"],\"AssignmentExpression\":[\"left\",\"right\"],\"BinaryExpression\":[\"left\",\"right\"],\"Directive\":[\"value\"],\"DirectiveLiteral\":[],\"BlockStatement\":[\"directives\",\"body\"],\"BreakStatement\":[\"label\"],\"CallExpression\":[\"callee\",\"arguments\",\"typeParameters\"],\"CatchClause\":[\"param\",\"body\"],\"ConditionalExpression\":[\"test\",\"consequent\",\"alternate\"],\"ContinueStatement\":[\"label\"],\"DebuggerStatement\":[],\"DoWhileStatement\":[\"test\",\"body\"],\"EmptyStatement\":[],\"ExpressionStatement\":[\"expression\"],\"File\":[\"program\"],\"ForInStatement\":[\"left\",\"right\",\"body\"],\"ForStatement\":[\"init\",\"test\",\"update\",\"body\"],\"FunctionDeclaration\":[\"id\",\"params\",\"body\",\"returnType\",\"typeParameters\"],\"FunctionExpression\":[\"id\",\"params\",\"body\",\"returnType\",\"typeParameters\"],\"Identifier\":[\"typeAnnotation\"],\"IfStatement\":[\"test\",\"consequent\",\"alternate\"],\"LabeledStatement\":[\"label\",\"body\"],\"StringLiteral\":[],\"NumericLiteral\":[],\"NullLiteral\":[],\"BooleanLiteral\":[],\"RegExpLiteral\":[],\"LogicalExpression\":[\"left\",\"right\"],\"MemberExpression\":[\"object\",\"property\"],\"NewExpression\":[\"callee\",\"arguments\",\"typeParameters\"],\"Program\":[\"directives\",\"body\"],\"ObjectExpression\":[\"properties\"],\"ObjectMethod\":[\"key\",\"params\",\"body\",\"decorators\",\"returnType\",\"typeParameters\"],\"ObjectProperty\":[\"key\",\"value\",\"decorators\"],\"RestElement\":[\"argument\",\"typeAnnotation\"],\"ReturnStatement\":[\"argument\"],\"SequenceExpression\":[\"expressions\"],\"SwitchCase\":[\"test\",\"consequent\"],\"SwitchStatement\":[\"discriminant\",\"cases\"],\"ThisExpression\":[],\"ThrowStatement\":[\"argument\"],\"TryStatement\":[\"block\",\"handler\",\"finalizer\"],\"UnaryExpression\":[\"argument\"],\"UpdateExpression\":[\"argument\"],\"VariableDeclaration\":[\"declarations\"],\"VariableDeclarator\":[\"id\",\"init\"],\"WhileStatement\":[\"test\",\"body\"],\"WithStatement\":[\"object\",\"body\"],\"AssignmentPattern\":[\"left\",\"right\"],\"ArrayPattern\":[\"elements\",\"typeAnnotation\"],\"ArrowFunctionExpression\":[\"params\",\"body\",\"returnType\",\"typeParameters\"],\"ClassBody\":[\"body\"],\"ClassDeclaration\":[\"id\",\"body\",\"superClass\",\"mixins\",\"typeParameters\",\"superTypeParameters\",\"implements\",\"decorators\"],\"ClassExpression\":[\"id\",\"body\",\"superClass\",\"mixins\",\"typeParameters\",\"superTypeParameters\",\"implements\",\"decorators\"],\"ExportAllDeclaration\":[\"source\"],\"ExportDefaultDeclaration\":[\"declaration\"],\"ExportNamedDeclaration\":[\"declaration\",\"specifiers\",\"source\"],\"ExportSpecifier\":[\"local\",\"exported\"],\"ForOfStatement\":[\"left\",\"right\",\"body\"],\"ImportDeclaration\":[\"specifiers\",\"source\"],\"ImportDefaultSpecifier\":[\"local\"],\"ImportNamespaceSpecifier\":[\"local\"],\"ImportSpecifier\":[\"local\",\"imported\"],\"MetaProperty\":[\"meta\",\"property\"],\"ClassMethod\":[\"key\",\"params\",\"body\",\"decorators\",\"returnType\",\"typeParameters\"],\"ObjectPattern\":[\"properties\",\"typeAnnotation\"],\"SpreadElement\":[\"argument\"],\"Super\":[],\"TaggedTemplateExpression\":[\"tag\",\"quasi\"],\"TemplateElement\":[],\"TemplateLiteral\":[\"quasis\",\"expressions\"],\"YieldExpression\":[\"argument\"],\"AnyTypeAnnotation\":[],\"ArrayTypeAnnotation\":[\"elementType\"],\"BooleanTypeAnnotation\":[],\"BooleanLiteralTypeAnnotation\":[],\"NullLiteralTypeAnnotation\":[],\"ClassImplements\":[\"id\",\"typeParameters\"],\"DeclareClass\":[\"id\",\"typeParameters\",\"extends\",\"body\"],\"DeclareFunction\":[\"id\"],\"DeclareInterface\":[\"id\",\"typeParameters\",\"extends\",\"body\"],\"DeclareModule\":[\"id\",\"body\"],\"DeclareModuleExports\":[\"typeAnnotation\"],\"DeclareTypeAlias\":[\"id\",\"typeParameters\",\"right\"],\"DeclareOpaqueType\":[\"id\",\"typeParameters\",\"supertype\"],\"DeclareVariable\":[\"id\"],\"DeclareExportDeclaration\":[\"declaration\",\"specifiers\",\"source\"],\"DeclareExportAllDeclaration\":[\"source\"],\"DeclaredPredicate\":[\"value\"],\"ExistsTypeAnnotation\":[],\"FunctionTypeAnnotation\":[\"typeParameters\",\"params\",\"rest\",\"returnType\"],\"FunctionTypeParam\":[\"name\",\"typeAnnotation\"],\"GenericTypeAnnotation\":[\"id\",\"typeParameters\"],\"InferredPredicate\":[],\"InterfaceExtends\":[\"id\",\"typeParameters\"],\"InterfaceDeclaration\":[\"id\",\"typeParameters\",\"extends\",\"body\"],\"IntersectionTypeAnnotation\":[\"types\"],\"MixedTypeAnnotation\":[],\"EmptyTypeAnnotation\":[],\"NullableTypeAnnotation\":[\"typeAnnotation\"],\"NumberLiteralTypeAnnotation\":[],\"NumberTypeAnnotation\":[],\"ObjectTypeAnnotation\":[\"properties\",\"indexers\",\"callProperties\"],\"ObjectTypeCallProperty\":[\"value\"],\"ObjectTypeIndexer\":[\"id\",\"key\",\"value\"],\"ObjectTypeProperty\":[\"key\",\"value\"],\"ObjectTypeSpreadProperty\":[\"argument\"],\"OpaqueType\":[\"id\",\"typeParameters\",\"supertype\",\"impltype\"],\"QualifiedTypeIdentifier\":[\"id\",\"qualification\"],\"StringLiteralTypeAnnotation\":[],\"StringTypeAnnotation\":[],\"ThisTypeAnnotation\":[],\"TupleTypeAnnotation\":[\"types\"],\"TypeofTypeAnnotation\":[\"argument\"],\"TypeAlias\":[\"id\",\"typeParameters\",\"right\"],\"TypeAnnotation\":[\"typeAnnotation\"],\"TypeCastExpression\":[\"expression\",\"typeAnnotation\"],\"TypeParameter\":[\"bound\",\"default\"],\"TypeParameterDeclaration\":[\"params\"],\"TypeParameterInstantiation\":[\"params\"],\"UnionTypeAnnotation\":[\"types\"],\"VoidTypeAnnotation\":[],\"JSXAttribute\":[\"name\",\"value\"],\"JSXClosingElement\":[\"name\"],\"JSXElement\":[\"openingElement\",\"children\",\"closingElement\"],\"JSXEmptyExpression\":[],\"JSXExpressionContainer\":[\"expression\"],\"JSXSpreadChild\":[\"expression\"],\"JSXIdentifier\":[],\"JSXMemberExpression\":[\"object\",\"property\"],\"JSXNamespacedName\":[\"namespace\",\"name\"],\"JSXOpeningElement\":[\"name\",\"attributes\"],\"JSXSpreadAttribute\":[\"argument\"],\"JSXText\":[],\"JSXFragment\":[\"openingFragment\",\"children\",\"closingFragment\"],\"JSXOpeningFragment\":[],\"JSXClosingFragment\":[],\"Noop\":[],\"ParenthesizedExpression\":[\"expression\"],\"AwaitExpression\":[\"argument\"],\"BindExpression\":[\"object\",\"callee\"],\"ClassProperty\":[\"key\",\"value\",\"typeAnnotation\",\"decorators\"],\"Import\":[],\"Decorator\":[\"expression\"],\"DoExpression\":[\"body\"],\"ExportDefaultSpecifier\":[\"exported\"],\"ExportNamespaceSpecifier\":[\"exported\"],\"TSParameterProperty\":[\"parameter\"],\"TSDeclareFunction\":[\"id\",\"typeParameters\",\"params\",\"returnType\"],\"TSDeclareMethod\":[\"decorators\",\"key\",\"typeParameters\",\"params\",\"returnType\"],\"TSQualifiedName\":[\"left\",\"right\"],\"TSCallSignatureDeclaration\":[\"typeParameters\",\"parameters\",\"typeAnnotation\"],\"TSConstructSignatureDeclaration\":[\"typeParameters\",\"parameters\",\"typeAnnotation\"],\"TSPropertySignature\":[\"key\",\"typeAnnotation\",\"initializer\"],\"TSMethodSignature\":[\"key\",\"typeParameters\",\"parameters\",\"typeAnnotation\"],\"TSIndexSignature\":[\"parameters\",\"typeAnnotation\"],\"TSAnyKeyword\":[],\"TSNumberKeyword\":[],\"TSObjectKeyword\":[],\"TSBooleanKeyword\":[],\"TSStringKeyword\":[],\"TSSymbolKeyword\":[],\"TSVoidKeyword\":[],\"TSUndefinedKeyword\":[],\"TSNullKeyword\":[],\"TSNeverKeyword\":[],\"TSThisType\":[],\"TSFunctionType\":[\"typeParameters\",\"typeAnnotation\"],\"TSConstructorType\":[\"typeParameters\",\"typeAnnotation\"],\"TSTypeReference\":[\"typeName\",\"typeParameters\"],\"TSTypePredicate\":[\"parameterName\",\"typeAnnotation\"],\"TSTypeQuery\":[\"exprName\"],\"TSTypeLiteral\":[\"members\"],\"TSArrayType\":[\"elementType\"],\"TSTupleType\":[\"elementTypes\"],\"TSUnionType\":[\"types\"],\"TSIntersectionType\":[\"types\"],\"TSParenthesizedType\":[\"typeAnnotation\"],\"TSTypeOperator\":[\"typeAnnotation\"],\"TSIndexedAccessType\":[\"objectType\",\"indexType\"],\"TSMappedType\":[\"typeParameter\",\"typeAnnotation\"],\"TSLiteralType\":[\"literal\"],\"TSExpressionWithTypeArguments\":[\"expression\",\"typeParameters\"],\"TSInterfaceDeclaration\":[\"id\",\"typeParameters\",\"extends\",\"body\"],\"TSInterfaceBody\":[\"body\"],\"TSTypeAliasDeclaration\":[\"id\",\"typeParameters\",\"typeAnnotation\"],\"TSAsExpression\":[\"expression\",\"typeAnnotation\"],\"TSTypeAssertion\":[\"typeAnnotation\",\"expression\"],\"TSEnumDeclaration\":[\"id\",\"members\"],\"TSEnumMember\":[\"id\",\"initializer\"],\"TSModuleDeclaration\":[\"id\",\"body\"],\"TSModuleBlock\":[\"body\"],\"TSImportEqualsDeclaration\":[\"id\",\"moduleReference\"],\"TSExternalModuleReference\":[\"expression\"],\"TSNonNullExpression\":[\"expression\"],\"TSExportAssignment\":[\"expression\"],\"TSNamespaceExportDeclaration\":[\"id\"],\"TSTypeAnnotation\":[\"typeAnnotation\"],\"TSTypeParameterInstantiation\":[\"params\"],\"TSTypeParameterDeclaration\":[\"params\"],\"TSTypeParameter\":[\"constraint\",\"default\"]}",
     _powerAssertRecorder = function () { function PowerAssertRecorder() { this.captured = []; } PowerAssertRecorder.prototype._capt = function _capt(value, espath) { this.captured.push({ value: value, espath: espath }); return value; }; PowerAssertRecorder.prototype._expr = function _expr(value, source) { var capturedValues = this.captured; this.captured = []; return { powerAssertContext: { value: value, events: capturedValues }, source: source }; }; return PowerAssertRecorder; }(),
     _rec = new _powerAssertRecorder(),
     _rec2 = new _powerAssertRecorder(),
@@ -8,51 +8,41 @@ var _powerAssertVisitorKeys = '{"ArrayExpression":["elements"],"AssignmentExpres
     _rec4 = new _powerAssertRecorder();
 
 assert(false);
-
 assert(0);
-
 assert.equal(1, 0);
-
 assert(false, 'message');
-
 assert(false, messageStr);
-
-assert.equal(_rec._expr(_rec._capt(foo, 'arguments/0'), {
-  content: 'assert.equal(foo, \'bar\', \'msg\')',
-  filepath: 'test/fixtures/Literal/fixture.js',
+assert.equal(_rec._expr(_rec._capt(foo, "arguments/0"), {
+  content: "assert.equal(foo, 'bar', 'msg')",
+  filepath: "test/fixtures/Literal/fixture.js",
   line: 13,
-  ast: '{"type":"CallExpression","callee":{"type":"MemberExpression","object":{"type":"Identifier","name":"assert","range":[0,6]},"property":{"type":"Identifier","name":"equal","range":[7,12]},"computed":false,"range":[0,12]},"arguments":[{"type":"Identifier","name":"foo","range":[13,16]},{"type":"StringLiteral","value":"bar","range":[18,23]},{"type":"StringLiteral","value":"msg","range":[25,30]}],"range":[0,31]}',
-  tokens: '[{"type":{"label":"name"},"value":"assert","range":[0,6]},{"type":{"label":"."},"range":[6,7]},{"type":{"label":"name"},"value":"equal","range":[7,12]},{"type":{"label":"("},"range":[12,13]},{"type":{"label":"name"},"value":"foo","range":[13,16]},{"type":{"label":","},"range":[16,17]},{"type":{"label":"string"},"value":"bar","range":[18,23]},{"type":{"label":","},"range":[23,24]},{"type":{"label":"string"},"value":"msg","range":[25,30]},{"type":{"label":")"},"range":[30,31]}]',
+  ast: "{\"type\":\"CallExpression\",\"callee\":{\"type\":\"MemberExpression\",\"object\":{\"type\":\"Identifier\",\"name\":\"assert\",\"range\":[0,6]},\"property\":{\"type\":\"Identifier\",\"name\":\"equal\",\"range\":[7,12]},\"computed\":false,\"range\":[0,12]},\"arguments\":[{\"type\":\"Identifier\",\"name\":\"foo\",\"range\":[13,16]},{\"type\":\"StringLiteral\",\"value\":\"bar\",\"range\":[18,23]},{\"type\":\"StringLiteral\",\"value\":\"msg\",\"range\":[25,30]}],\"range\":[0,31]}",
+  tokens: "[{\"type\":{\"label\":\"name\"},\"value\":\"assert\",\"range\":[0,6]},{\"type\":{\"label\":\".\"},\"range\":[6,7]},{\"type\":{\"label\":\"name\"},\"value\":\"equal\",\"range\":[7,12]},{\"type\":{\"label\":\"(\"},\"range\":[12,13]},{\"type\":{\"label\":\"name\"},\"value\":\"foo\",\"range\":[13,16]},{\"type\":{\"label\":\",\"},\"range\":[16,17]},{\"type\":{\"label\":\"string\"},\"value\":\"bar\",\"range\":[18,23]},{\"type\":{\"label\":\",\"},\"range\":[23,24]},{\"type\":{\"label\":\"string\"},\"value\":\"msg\",\"range\":[25,30]},{\"type\":{\"label\":\")\"},\"range\":[30,31]}]",
   visitorKeys: _powerAssertVisitorKeys
 }), 'bar', 'msg');
-
-assert(_rec2._expr(_rec2._capt(/^not/.exec(_rec2._capt(str, 'arguments/0/arguments/0')), 'arguments/0'), {
-  content: 'assert(/^not/.exec(str))',
-  filepath: 'test/fixtures/Literal/fixture.js',
+assert(_rec2._expr(_rec2._capt(/^not/.exec(_rec2._capt(str, "arguments/0/arguments/0")), "arguments/0"), {
+  content: "assert(/^not/.exec(str))",
+  filepath: "test/fixtures/Literal/fixture.js",
   line: 15,
-  ast: '{"type":"CallExpression","callee":{"type":"Identifier","name":"assert","range":[0,6]},"arguments":[{"type":"CallExpression","callee":{"type":"MemberExpression","object":{"type":"RegExpLiteral","pattern":"^not","flags":"","range":[7,13]},"property":{"type":"Identifier","name":"exec","range":[14,18]},"computed":false,"range":[7,18]},"arguments":[{"type":"Identifier","name":"str","range":[19,22]}],"range":[7,23]}],"range":[0,24]}',
-  tokens: '[{"type":{"label":"name"},"value":"assert","range":[0,6]},{"type":{"label":"("},"range":[6,7]},{"type":{"label":"regexp"},"value":{"pattern":"^not","flags":""},"range":[7,13]},{"type":{"label":"."},"range":[13,14]},{"type":{"label":"name"},"value":"exec","range":[14,18]},{"type":{"label":"("},"range":[18,19]},{"type":{"label":"name"},"value":"str","range":[19,22]},{"type":{"label":")"},"range":[22,23]},{"type":{"label":")"},"range":[23,24]}]',
+  ast: "{\"type\":\"CallExpression\",\"callee\":{\"type\":\"Identifier\",\"name\":\"assert\",\"range\":[0,6]},\"arguments\":[{\"type\":\"CallExpression\",\"callee\":{\"type\":\"MemberExpression\",\"object\":{\"type\":\"RegExpLiteral\",\"pattern\":\"^not\",\"flags\":\"\",\"range\":[7,13]},\"property\":{\"type\":\"Identifier\",\"name\":\"exec\",\"range\":[14,18]},\"computed\":false,\"range\":[7,18]},\"arguments\":[{\"type\":\"Identifier\",\"name\":\"str\",\"range\":[19,22]}],\"range\":[7,23]}],\"range\":[0,24]}",
+  tokens: "[{\"type\":{\"label\":\"name\"},\"value\":\"assert\",\"range\":[0,6]},{\"type\":{\"label\":\"(\"},\"range\":[6,7]},{\"type\":{\"label\":\"regexp\"},\"value\":{\"pattern\":\"^not\",\"flags\":\"\"},\"range\":[7,13]},{\"type\":{\"label\":\".\"},\"range\":[13,14]},{\"type\":{\"label\":\"name\"},\"value\":\"exec\",\"range\":[14,18]},{\"type\":{\"label\":\"(\"},\"range\":[18,19]},{\"type\":{\"label\":\"name\"},\"value\":\"str\",\"range\":[19,22]},{\"type\":{\"label\":\")\"},\"range\":[22,23]},{\"type\":{\"label\":\")\"},\"range\":[23,24]}]",
   visitorKeys: _powerAssertVisitorKeys
 }));
-
-assert(_rec3._expr(_rec3._capt(_rec3._capt(fuga, 'arguments/0/left') !== 'ふが', 'arguments/0'), {
-  content: 'assert(fuga !== \'\u3075\u304C\')',
-  filepath: 'test/fixtures/Literal/fixture.js',
+assert(_rec3._expr(_rec3._capt(_rec3._capt(fuga, "arguments/0/left") !== 'ふが', "arguments/0"), {
+  content: "assert(fuga !== '\u3075\u304C')",
+  filepath: "test/fixtures/Literal/fixture.js",
   line: 17,
-  ast: '{"type":"CallExpression","callee":{"type":"Identifier","name":"assert","range":[0,6]},"arguments":[{"type":"BinaryExpression","operator":"!==","left":{"type":"Identifier","name":"fuga","range":[7,11]},"right":{"type":"StringLiteral","value":"\u3075\u304C","range":[16,20]},"range":[7,20]}],"range":[0,21]}',
-  tokens: '[{"type":{"label":"name"},"value":"assert","range":[0,6]},{"type":{"label":"("},"range":[6,7]},{"type":{"label":"name"},"value":"fuga","range":[7,11]},{"type":{"label":"==/!="},"value":"!==","range":[12,15]},{"type":{"label":"string"},"value":"\u3075\u304C","range":[16,20]},{"type":{"label":")"},"range":[20,21]}]',
+  ast: "{\"type\":\"CallExpression\",\"callee\":{\"type\":\"Identifier\",\"name\":\"assert\",\"range\":[0,6]},\"arguments\":[{\"type\":\"BinaryExpression\",\"operator\":\"!==\",\"left\":{\"type\":\"Identifier\",\"name\":\"fuga\",\"range\":[7,11]},\"right\":{\"type\":\"StringLiteral\",\"value\":\"\u3075\u304C\",\"range\":[16,20]},\"range\":[7,20]}],\"range\":[0,21]}",
+  tokens: "[{\"type\":{\"label\":\"name\"},\"value\":\"assert\",\"range\":[0,6]},{\"type\":{\"label\":\"(\"},\"range\":[6,7]},{\"type\":{\"label\":\"name\"},\"value\":\"fuga\",\"range\":[7,11]},{\"type\":{\"label\":\"==/!=\"},\"value\":\"!==\",\"range\":[12,15]},{\"type\":{\"label\":\"string\"},\"value\":\"\u3075\u304C\",\"range\":[16,20]},{\"type\":{\"label\":\")\"},\"range\":[20,21]}]",
   visitorKeys: _powerAssertVisitorKeys
 }));
-
-assert(_rec4._expr(_rec4._capt('ほげ' !== 'ふが', 'arguments/0'), {
-  content: 'assert(\'\u307B\u3052\' !== \'\u3075\u304C\')',
-  filepath: 'test/fixtures/Literal/fixture.js',
+assert(_rec4._expr(_rec4._capt('ほげ' !== 'ふが', "arguments/0"), {
+  content: "assert('\u307B\u3052' !== '\u3075\u304C')",
+  filepath: "test/fixtures/Literal/fixture.js",
   line: 19,
-  ast: '{"type":"CallExpression","callee":{"type":"Identifier","name":"assert","range":[0,6]},"arguments":[{"type":"BinaryExpression","operator":"!==","left":{"type":"StringLiteral","value":"\u307B\u3052","range":[7,11]},"right":{"type":"StringLiteral","value":"\u3075\u304C","range":[16,20]},"range":[7,20]}],"range":[0,21]}',
-  tokens: '[{"type":{"label":"name"},"value":"assert","range":[0,6]},{"type":{"label":"("},"range":[6,7]},{"type":{"label":"string"},"value":"\u307B\u3052","range":[7,11]},{"type":{"label":"==/!="},"value":"!==","range":[12,15]},{"type":{"label":"string"},"value":"\u3075\u304C","range":[16,20]},{"type":{"label":")"},"range":[20,21]}]',
+  ast: "{\"type\":\"CallExpression\",\"callee\":{\"type\":\"Identifier\",\"name\":\"assert\",\"range\":[0,6]},\"arguments\":[{\"type\":\"BinaryExpression\",\"operator\":\"!==\",\"left\":{\"type\":\"StringLiteral\",\"value\":\"\u307B\u3052\",\"range\":[7,11]},\"right\":{\"type\":\"StringLiteral\",\"value\":\"\u3075\u304C\",\"range\":[16,20]},\"range\":[7,20]}],\"range\":[0,21]}",
+  tokens: "[{\"type\":{\"label\":\"name\"},\"value\":\"assert\",\"range\":[0,6]},{\"type\":{\"label\":\"(\"},\"range\":[6,7]},{\"type\":{\"label\":\"string\"},\"value\":\"\u307B\u3052\",\"range\":[7,11]},{\"type\":{\"label\":\"==/!=\"},\"value\":\"!==\",\"range\":[12,15]},{\"type\":{\"label\":\"string\"},\"value\":\"\u3075\u304C\",\"range\":[16,20]},{\"type\":{\"label\":\")\"},\"range\":[20,21]}]",
   visitorKeys: _powerAssertVisitorKeys
 }));
-
 assert(503);
-
 assert(503);
diff --git a/test/fixtures/Literal/expected.js b/test/fixtures/Literal/expected.js
index 8734dfe..afbfb90 100644
--- a/test/fixtures/Literal/expected.js
+++ b/test/fixtures/Literal/expected.js
@@ -7,39 +7,29 @@ var _powerAssertRecorder = function () { function PowerAssertRecorder() { this.c
     _rec4 = new _powerAssertRecorder();
 
 assert(false);
-
 assert(0);
-
 assert.equal(1, 0);
-
 assert(false, 'message');
-
 assert(false, messageStr);
-
-assert.equal(_rec._expr(_rec._capt(foo, 'arguments/0'), {
-  content: 'assert.equal(foo, \'bar\', \'msg\')',
-  filepath: 'test/fixtures/Literal/fixture.js',
+assert.equal(_rec._expr(_rec._capt(foo, "arguments/0"), {
+  content: "assert.equal(foo, 'bar', 'msg')",
+  filepath: "test/fixtures/Literal/fixture.js",
   line: 13
 }), 'bar', 'msg');
-
-assert(_rec2._expr(_rec2._capt(/^not/.exec(_rec2._capt(str, 'arguments/0/arguments/0')), 'arguments/0'), {
-  content: 'assert(/^not/.exec(str))',
-  filepath: 'test/fixtures/Literal/fixture.js',
+assert(_rec2._expr(_rec2._capt(/^not/.exec(_rec2._capt(str, "arguments/0/arguments/0")), "arguments/0"), {
+  content: "assert(/^not/.exec(str))",
+  filepath: "test/fixtures/Literal/fixture.js",
   line: 15
 }));
-
-assert(_rec3._expr(_rec3._capt(_rec3._capt(fuga, 'arguments/0/left') !== 'ふが', 'arguments/0'), {
-  content: 'assert(fuga !== \'\u3075\u304C\')',
-  filepath: 'test/fixtures/Literal/fixture.js',
+assert(_rec3._expr(_rec3._capt(_rec3._capt(fuga, "arguments/0/left") !== 'ふが', "arguments/0"), {
+  content: "assert(fuga !== '\u3075\u304C')",
+  filepath: "test/fixtures/Literal/fixture.js",
   line: 17
 }));
-
-assert(_rec4._expr(_rec4._capt('ほげ' !== 'ふが', 'arguments/0'), {
-  content: 'assert(\'\u307B\u3052\' !== \'\u3075\u304C\')',
-  filepath: 'test/fixtures/Literal/fixture.js',
+assert(_rec4._expr(_rec4._capt('ほげ' !== 'ふが', "arguments/0"), {
+  content: "assert('\u307B\u3052' !== '\u3075\u304C')",
+  filepath: "test/fixtures/Literal/fixture.js",
   line: 19
 }));
-
 assert(0b111110111);
-
 assert(0o767);
diff --git a/test/fixtures/LogicalExpression/expected-presets-es2015.js b/test/fixtures/LogicalExpression/expected-presets-es2015.js
index 0ac04a2..9e7251e 100644
--- a/test/fixtures/LogicalExpression/expected-presets-es2015.js
+++ b/test/fixtures/LogicalExpression/expected-presets-es2015.js
@@ -1,6 +1,6 @@
 'use strict';
 
-var _powerAssertVisitorKeys = '{"ArrayExpression":["elements"],"AssignmentExpression":["left","right"],"BinaryExpression":["left","right"],"Directive":["value"],"DirectiveLiteral":[],"BlockStatement":["directives","body"],"BreakStatement":["label"],"CallExpression":["callee","arguments"],"CatchClause":["param","body"],"ConditionalExpression":["test","consequent","alternate"],"ContinueStatement":["label"],"DebuggerStatement":[],"DoWhileStatement":["test","body"],"EmptyStatement":[],"ExpressionStatement":["expression"],"File":["program"],"ForInStatement":["left","right","body"],"ForStatement":["init","test","update","body"],"FunctionDeclaration":["id","params","body","returnType","typeParameters"],"FunctionExpression":["id","params","body","returnType","typeParameters"],"Identifier":["typeAnnotation"],"IfStatement":["test","consequent","alternate"],"LabeledStatement":["label","body"],"StringLiteral":[],"NumericLiteral":[],"NullLiteral":[],"BooleanLiteral":[],"RegExpLiteral":[],"LogicalExpression":["left","right"],"MemberExpression":["object","property"],"NewExpression":["callee","arguments"],"Program":["directives","body"],"ObjectExpression":["properties"],"ObjectMethod":["key","params","body","decorators","returnType","typeParameters"],"ObjectProperty":["key","value","decorators"],"RestElement":["argument","typeAnnotation"],"ReturnStatement":["argument"],"SequenceExpression":["expressions"],"SwitchCase":["test","consequent"],"SwitchStatement":["discriminant","cases"],"ThisExpression":[],"ThrowStatement":["argument"],"TryStatement":["block","handler","finalizer"],"UnaryExpression":["argument"],"UpdateExpression":["argument"],"VariableDeclaration":["declarations"],"VariableDeclarator":["id","init"],"WhileStatement":["test","body"],"WithStatement":["object","body"],"AssignmentPattern":["left","right"],"ArrayPattern":["elements","typeAnnotation"],"ArrowFunctionExpression":["params","body","returnType","typeParameters"],"ClassBody":["body"],"ClassDeclaration":["id","body","superClass","mixins","typeParameters","superTypeParameters","implements","decorators"],"ClassExpression":["id","body","superClass","mixins","typeParameters","superTypeParameters","implements","decorators"],"ExportAllDeclaration":["source"],"ExportDefaultDeclaration":["declaration"],"ExportNamedDeclaration":["declaration","specifiers","source"],"ExportSpecifier":["local","exported"],"ForOfStatement":["left","right","body"],"ImportDeclaration":["specifiers","source"],"ImportDefaultSpecifier":["local"],"ImportNamespaceSpecifier":["local"],"ImportSpecifier":["local","imported"],"MetaProperty":["meta","property"],"ClassMethod":["key","params","body","decorators","returnType","typeParameters"],"ObjectPattern":["properties","typeAnnotation"],"SpreadElement":["argument"],"Super":[],"TaggedTemplateExpression":["tag","quasi"],"TemplateElement":[],"TemplateLiteral":["quasis","expressions"],"YieldExpression":["argument"],"AnyTypeAnnotation":[],"ArrayTypeAnnotation":["elementType"],"BooleanTypeAnnotation":[],"BooleanLiteralTypeAnnotation":[],"NullLiteralTypeAnnotation":[],"ClassImplements":["id","typeParameters"],"ClassProperty":["key","value","typeAnnotation","decorators"],"DeclareClass":["id","typeParameters","extends","body"],"DeclareFunction":["id"],"DeclareInterface":["id","typeParameters","extends","body"],"DeclareModule":["id","body"],"DeclareModuleExports":["typeAnnotation"],"DeclareTypeAlias":["id","typeParameters","right"],"DeclareOpaqueType":["id","typeParameters","supertype"],"DeclareVariable":["id"],"DeclareExportDeclaration":["declaration","specifiers","source"],"ExistentialTypeParam":[],"FunctionTypeAnnotation":["typeParameters","params","rest","returnType"],"FunctionTypeParam":["name","typeAnnotation"],"GenericTypeAnnotation":["id","typeParameters"],"InterfaceExtends":["id","typeParameters"],"InterfaceDeclaration":["id","typeParameters","extends","body"],"IntersectionTypeAnnotation":["types"],"MixedTypeAnnotation":[],"EmptyTypeAnnotation":[],"NullableTypeAnnotation":["typeAnnotation"],"NumericLiteralTypeAnnotation":[],"NumberTypeAnnotation":[],"StringLiteralTypeAnnotation":[],"StringTypeAnnotation":[],"ThisTypeAnnotation":[],"TupleTypeAnnotation":["types"],"TypeofTypeAnnotation":["argument"],"TypeAlias":["id","typeParameters","right"],"OpaqueType":["id","typeParameters","impltype","supertype"],"TypeAnnotation":["typeAnnotation"],"TypeCastExpression":["expression","typeAnnotation"],"TypeParameter":["bound"],"TypeParameterDeclaration":["params"],"TypeParameterInstantiation":["params"],"ObjectTypeAnnotation":["properties","indexers","callProperties"],"ObjectTypeCallProperty":["value"],"ObjectTypeIndexer":["id","key","value"],"ObjectTypeProperty":["key","value"],"ObjectTypeSpreadProperty":["argument"],"QualifiedTypeIdentifier":["id","qualification"],"UnionTypeAnnotation":["types"],"VoidTypeAnnotation":[],"JSXAttribute":["name","value"],"JSXClosingElement":["name"],"JSXElement":["openingElement","children","closingElement"],"JSXEmptyExpression":[],"JSXExpressionContainer":["expression"],"JSXSpreadChild":["expression"],"JSXIdentifier":[],"JSXMemberExpression":["object","property"],"JSXNamespacedName":["namespace","name"],"JSXOpeningElement":["name","attributes"],"JSXSpreadAttribute":["argument"],"JSXText":[],"Noop":[],"ParenthesizedExpression":["expression"],"AwaitExpression":["argument"],"ForAwaitStatement":["left","right","body"],"BindExpression":["object","callee"],"Import":[],"Decorator":["expression"],"DoExpression":["body"],"ExportDefaultSpecifier":["exported"],"ExportNamespaceSpecifier":["exported"],"RestProperty":["argument"],"SpreadProperty":["argument"]}',
+var _powerAssertVisitorKeys = "{\"ArrayExpression\":[\"elements\"],\"AssignmentExpression\":[\"left\",\"right\"],\"BinaryExpression\":[\"left\",\"right\"],\"Directive\":[\"value\"],\"DirectiveLiteral\":[],\"BlockStatement\":[\"directives\",\"body\"],\"BreakStatement\":[\"label\"],\"CallExpression\":[\"callee\",\"arguments\",\"typeParameters\"],\"CatchClause\":[\"param\",\"body\"],\"ConditionalExpression\":[\"test\",\"consequent\",\"alternate\"],\"ContinueStatement\":[\"label\"],\"DebuggerStatement\":[],\"DoWhileStatement\":[\"test\",\"body\"],\"EmptyStatement\":[],\"ExpressionStatement\":[\"expression\"],\"File\":[\"program\"],\"ForInStatement\":[\"left\",\"right\",\"body\"],\"ForStatement\":[\"init\",\"test\",\"update\",\"body\"],\"FunctionDeclaration\":[\"id\",\"params\",\"body\",\"returnType\",\"typeParameters\"],\"FunctionExpression\":[\"id\",\"params\",\"body\",\"returnType\",\"typeParameters\"],\"Identifier\":[\"typeAnnotation\"],\"IfStatement\":[\"test\",\"consequent\",\"alternate\"],\"LabeledStatement\":[\"label\",\"body\"],\"StringLiteral\":[],\"NumericLiteral\":[],\"NullLiteral\":[],\"BooleanLiteral\":[],\"RegExpLiteral\":[],\"LogicalExpression\":[\"left\",\"right\"],\"MemberExpression\":[\"object\",\"property\"],\"NewExpression\":[\"callee\",\"arguments\",\"typeParameters\"],\"Program\":[\"directives\",\"body\"],\"ObjectExpression\":[\"properties\"],\"ObjectMethod\":[\"key\",\"params\",\"body\",\"decorators\",\"returnType\",\"typeParameters\"],\"ObjectProperty\":[\"key\",\"value\",\"decorators\"],\"RestElement\":[\"argument\",\"typeAnnotation\"],\"ReturnStatement\":[\"argument\"],\"SequenceExpression\":[\"expressions\"],\"SwitchCase\":[\"test\",\"consequent\"],\"SwitchStatement\":[\"discriminant\",\"cases\"],\"ThisExpression\":[],\"ThrowStatement\":[\"argument\"],\"TryStatement\":[\"block\",\"handler\",\"finalizer\"],\"UnaryExpression\":[\"argument\"],\"UpdateExpression\":[\"argument\"],\"VariableDeclaration\":[\"declarations\"],\"VariableDeclarator\":[\"id\",\"init\"],\"WhileStatement\":[\"test\",\"body\"],\"WithStatement\":[\"object\",\"body\"],\"AssignmentPattern\":[\"left\",\"right\"],\"ArrayPattern\":[\"elements\",\"typeAnnotation\"],\"ArrowFunctionExpression\":[\"params\",\"body\",\"returnType\",\"typeParameters\"],\"ClassBody\":[\"body\"],\"ClassDeclaration\":[\"id\",\"body\",\"superClass\",\"mixins\",\"typeParameters\",\"superTypeParameters\",\"implements\",\"decorators\"],\"ClassExpression\":[\"id\",\"body\",\"superClass\",\"mixins\",\"typeParameters\",\"superTypeParameters\",\"implements\",\"decorators\"],\"ExportAllDeclaration\":[\"source\"],\"ExportDefaultDeclaration\":[\"declaration\"],\"ExportNamedDeclaration\":[\"declaration\",\"specifiers\",\"source\"],\"ExportSpecifier\":[\"local\",\"exported\"],\"ForOfStatement\":[\"left\",\"right\",\"body\"],\"ImportDeclaration\":[\"specifiers\",\"source\"],\"ImportDefaultSpecifier\":[\"local\"],\"ImportNamespaceSpecifier\":[\"local\"],\"ImportSpecifier\":[\"local\",\"imported\"],\"MetaProperty\":[\"meta\",\"property\"],\"ClassMethod\":[\"key\",\"params\",\"body\",\"decorators\",\"returnType\",\"typeParameters\"],\"ObjectPattern\":[\"properties\",\"typeAnnotation\"],\"SpreadElement\":[\"argument\"],\"Super\":[],\"TaggedTemplateExpression\":[\"tag\",\"quasi\"],\"TemplateElement\":[],\"TemplateLiteral\":[\"quasis\",\"expressions\"],\"YieldExpression\":[\"argument\"],\"AnyTypeAnnotation\":[],\"ArrayTypeAnnotation\":[\"elementType\"],\"BooleanTypeAnnotation\":[],\"BooleanLiteralTypeAnnotation\":[],\"NullLiteralTypeAnnotation\":[],\"ClassImplements\":[\"id\",\"typeParameters\"],\"DeclareClass\":[\"id\",\"typeParameters\",\"extends\",\"body\"],\"DeclareFunction\":[\"id\"],\"DeclareInterface\":[\"id\",\"typeParameters\",\"extends\",\"body\"],\"DeclareModule\":[\"id\",\"body\"],\"DeclareModuleExports\":[\"typeAnnotation\"],\"DeclareTypeAlias\":[\"id\",\"typeParameters\",\"right\"],\"DeclareOpaqueType\":[\"id\",\"typeParameters\",\"supertype\"],\"DeclareVariable\":[\"id\"],\"DeclareExportDeclaration\":[\"declaration\",\"specifiers\",\"source\"],\"DeclareExportAllDeclaration\":[\"source\"],\"DeclaredPredicate\":[\"value\"],\"ExistsTypeAnnotation\":[],\"FunctionTypeAnnotation\":[\"typeParameters\",\"params\",\"rest\",\"returnType\"],\"FunctionTypeParam\":[\"name\",\"typeAnnotation\"],\"GenericTypeAnnotation\":[\"id\",\"typeParameters\"],\"InferredPredicate\":[],\"InterfaceExtends\":[\"id\",\"typeParameters\"],\"InterfaceDeclaration\":[\"id\",\"typeParameters\",\"extends\",\"body\"],\"IntersectionTypeAnnotation\":[\"types\"],\"MixedTypeAnnotation\":[],\"EmptyTypeAnnotation\":[],\"NullableTypeAnnotation\":[\"typeAnnotation\"],\"NumberLiteralTypeAnnotation\":[],\"NumberTypeAnnotation\":[],\"ObjectTypeAnnotation\":[\"properties\",\"indexers\",\"callProperties\"],\"ObjectTypeCallProperty\":[\"value\"],\"ObjectTypeIndexer\":[\"id\",\"key\",\"value\"],\"ObjectTypeProperty\":[\"key\",\"value\"],\"ObjectTypeSpreadProperty\":[\"argument\"],\"OpaqueType\":[\"id\",\"typeParameters\",\"supertype\",\"impltype\"],\"QualifiedTypeIdentifier\":[\"id\",\"qualification\"],\"StringLiteralTypeAnnotation\":[],\"StringTypeAnnotation\":[],\"ThisTypeAnnotation\":[],\"TupleTypeAnnotation\":[\"types\"],\"TypeofTypeAnnotation\":[\"argument\"],\"TypeAlias\":[\"id\",\"typeParameters\",\"right\"],\"TypeAnnotation\":[\"typeAnnotation\"],\"TypeCastExpression\":[\"expression\",\"typeAnnotation\"],\"TypeParameter\":[\"bound\",\"default\"],\"TypeParameterDeclaration\":[\"params\"],\"TypeParameterInstantiation\":[\"params\"],\"UnionTypeAnnotation\":[\"types\"],\"VoidTypeAnnotation\":[],\"JSXAttribute\":[\"name\",\"value\"],\"JSXClosingElement\":[\"name\"],\"JSXElement\":[\"openingElement\",\"children\",\"closingElement\"],\"JSXEmptyExpression\":[],\"JSXExpressionContainer\":[\"expression\"],\"JSXSpreadChild\":[\"expression\"],\"JSXIdentifier\":[],\"JSXMemberExpression\":[\"object\",\"property\"],\"JSXNamespacedName\":[\"namespace\",\"name\"],\"JSXOpeningElement\":[\"name\",\"attributes\"],\"JSXSpreadAttribute\":[\"argument\"],\"JSXText\":[],\"JSXFragment\":[\"openingFragment\",\"children\",\"closingFragment\"],\"JSXOpeningFragment\":[],\"JSXClosingFragment\":[],\"Noop\":[],\"ParenthesizedExpression\":[\"expression\"],\"AwaitExpression\":[\"argument\"],\"BindExpression\":[\"object\",\"callee\"],\"ClassProperty\":[\"key\",\"value\",\"typeAnnotation\",\"decorators\"],\"Import\":[],\"Decorator\":[\"expression\"],\"DoExpression\":[\"body\"],\"ExportDefaultSpecifier\":[\"exported\"],\"ExportNamespaceSpecifier\":[\"exported\"],\"TSParameterProperty\":[\"parameter\"],\"TSDeclareFunction\":[\"id\",\"typeParameters\",\"params\",\"returnType\"],\"TSDeclareMethod\":[\"decorators\",\"key\",\"typeParameters\",\"params\",\"returnType\"],\"TSQualifiedName\":[\"left\",\"right\"],\"TSCallSignatureDeclaration\":[\"typeParameters\",\"parameters\",\"typeAnnotation\"],\"TSConstructSignatureDeclaration\":[\"typeParameters\",\"parameters\",\"typeAnnotation\"],\"TSPropertySignature\":[\"key\",\"typeAnnotation\",\"initializer\"],\"TSMethodSignature\":[\"key\",\"typeParameters\",\"parameters\",\"typeAnnotation\"],\"TSIndexSignature\":[\"parameters\",\"typeAnnotation\"],\"TSAnyKeyword\":[],\"TSNumberKeyword\":[],\"TSObjectKeyword\":[],\"TSBooleanKeyword\":[],\"TSStringKeyword\":[],\"TSSymbolKeyword\":[],\"TSVoidKeyword\":[],\"TSUndefinedKeyword\":[],\"TSNullKeyword\":[],\"TSNeverKeyword\":[],\"TSThisType\":[],\"TSFunctionType\":[\"typeParameters\",\"typeAnnotation\"],\"TSConstructorType\":[\"typeParameters\",\"typeAnnotation\"],\"TSTypeReference\":[\"typeName\",\"typeParameters\"],\"TSTypePredicate\":[\"parameterName\",\"typeAnnotation\"],\"TSTypeQuery\":[\"exprName\"],\"TSTypeLiteral\":[\"members\"],\"TSArrayType\":[\"elementType\"],\"TSTupleType\":[\"elementTypes\"],\"TSUnionType\":[\"types\"],\"TSIntersectionType\":[\"types\"],\"TSParenthesizedType\":[\"typeAnnotation\"],\"TSTypeOperator\":[\"typeAnnotation\"],\"TSIndexedAccessType\":[\"objectType\",\"indexType\"],\"TSMappedType\":[\"typeParameter\",\"typeAnnotation\"],\"TSLiteralType\":[\"literal\"],\"TSExpressionWithTypeArguments\":[\"expression\",\"typeParameters\"],\"TSInterfaceDeclaration\":[\"id\",\"typeParameters\",\"extends\",\"body\"],\"TSInterfaceBody\":[\"body\"],\"TSTypeAliasDeclaration\":[\"id\",\"typeParameters\",\"typeAnnotation\"],\"TSAsExpression\":[\"expression\",\"typeAnnotation\"],\"TSTypeAssertion\":[\"typeAnnotation\",\"expression\"],\"TSEnumDeclaration\":[\"id\",\"members\"],\"TSEnumMember\":[\"id\",\"initializer\"],\"TSModuleDeclaration\":[\"id\",\"body\"],\"TSModuleBlock\":[\"body\"],\"TSImportEqualsDeclaration\":[\"id\",\"moduleReference\"],\"TSExternalModuleReference\":[\"expression\"],\"TSNonNullExpression\":[\"expression\"],\"TSExportAssignment\":[\"expression\"],\"TSNamespaceExportDeclaration\":[\"id\"],\"TSTypeAnnotation\":[\"typeAnnotation\"],\"TSTypeParameterInstantiation\":[\"params\"],\"TSTypeParameterDeclaration\":[\"params\"],\"TSTypeParameter\":[\"constraint\",\"default\"]}",
     _powerAssertRecorder = function () { function PowerAssertRecorder() { this.captured = []; } PowerAssertRecorder.prototype._capt = function _capt(value, espath) { this.captured.push({ value: value, espath: espath }); return value; }; PowerAssertRecorder.prototype._expr = function _expr(value, source) { var capturedValues = this.captured; this.captured = []; return { powerAssertContext: { value: value, events: capturedValues }, source: source }; }; return PowerAssertRecorder; }(),
     _rec = new _powerAssertRecorder(),
     _rec2 = new _powerAssertRecorder(),
@@ -9,54 +9,50 @@ var _powerAssertVisitorKeys = '{"ArrayExpression":["elements"],"AssignmentExpres
     _rec5 = new _powerAssertRecorder(),
     _rec6 = new _powerAssertRecorder();
 
-assert(_rec._expr(_rec._capt(_rec._capt(5 < _rec._capt(actual, 'arguments/0/left/right'), 'arguments/0/left') && _rec._capt(_rec._capt(actual, 'arguments/0/right/left') < 13, 'arguments/0/right'), 'arguments/0'), {
-  content: 'assert(5 < actual && actual < 13)',
-  filepath: 'test/fixtures/LogicalExpression/fixture.js',
+assert(_rec._expr(_rec._capt(_rec._capt(5 < _rec._capt(actual, "arguments/0/left/right"), "arguments/0/left") && _rec._capt(_rec._capt(actual, "arguments/0/right/left") < 13, "arguments/0/right"), "arguments/0"), {
+  content: "assert(5 < actual && actual < 13)",
+  filepath: "test/fixtures/LogicalExpression/fixture.js",
   line: 3,
-  ast: '{"type":"CallExpression","callee":{"type":"Identifier","name":"assert","range":[0,6]},"arguments":[{"type":"LogicalExpression","operator":"&&","left":{"type":"BinaryExpression","operator":"<","left":{"type":"NumericLiteral","value":5,"range":[7,8]},"right":{"type":"Identifier","name":"actual","range":[11,17]},"range":[7,17]},"right":{"type":"BinaryExpression","operator":"<","left":{"type":"Identifier","name":"actual","range":[21,27]},"right":{"type":"NumericLiteral","value":13,"range":[30,32]},"range":[21,32]},"range":[7,32]}],"range":[0,33]}',
-  tokens: '[{"type":{"label":"name"},"value":"assert","range":[0,6]},{"type":{"label":"("},"range":[6,7]},{"type":{"label":"num"},"value":5,"range":[7,8]},{"type":{"label":"</>"},"value":"<","range":[9,10]},{"type":{"label":"name"},"value":"actual","range":[11,17]},{"type":{"label":"&&"},"value":"&&","range":[18,20]},{"type":{"label":"name"},"value":"actual","range":[21,27]},{"type":{"label":"</>"},"value":"<","range":[28,29]},{"type":{"label":"num"},"value":13,"range":[30,32]},{"type":{"label":")"},"range":[32,33]}]',
+  ast: "{\"type\":\"CallExpression\",\"callee\":{\"type\":\"Identifier\",\"name\":\"assert\",\"range\":[0,6]},\"arguments\":[{\"type\":\"LogicalExpression\",\"operator\":\"&&\",\"left\":{\"type\":\"BinaryExpression\",\"operator\":\"<\",\"left\":{\"type\":\"NumericLiteral\",\"value\":5,\"range\":[7,8]},\"right\":{\"type\":\"Identifier\",\"name\":\"actual\",\"range\":[11,17]},\"range\":[7,17]},\"right\":{\"type\":\"BinaryExpression\",\"operator\":\"<\",\"left\":{\"type\":\"Identifier\",\"name\":\"actual\",\"range\":[21,27]},\"right\":{\"type\":\"NumericLiteral\",\"value\":13,\"range\":[30,32]},\"range\":[21,32]},\"range\":[7,32]}],\"range\":[0,33]}",
+  tokens: "[{\"type\":{\"label\":\"name\"},\"value\":\"assert\",\"range\":[0,6]},{\"type\":{\"label\":\"(\"},\"range\":[6,7]},{\"type\":{\"label\":\"num\"},\"value\":5,\"range\":[7,8]},{\"type\":{\"label\":\"</>\"},\"value\":\"<\",\"range\":[9,10]},{\"type\":{\"label\":\"name\"},\"value\":\"actual\",\"range\":[11,17]},{\"type\":{\"label\":\"&&\"},\"value\":\"&&\",\"range\":[18,20]},{\"type\":{\"label\":\"name\"},\"value\":\"actual\",\"range\":[21,27]},{\"type\":{\"label\":\"</>\"},\"value\":\"<\",\"range\":[28,29]},{\"type\":{\"label\":\"num\"},\"value\":13,\"range\":[30,32]},{\"type\":{\"label\":\")\"},\"range\":[32,33]}]",
   visitorKeys: _powerAssertVisitorKeys
 }));
-
-assert.ok(_rec2._expr(_rec2._capt(_rec2._capt(_rec2._capt(actual, 'arguments/0/left/left') < 5, 'arguments/0/left') || _rec2._capt(13 < _rec2._capt(actual, 'arguments/0/right/right'), 'arguments/0/right'), 'arguments/0'), {
-  content: 'assert.ok(actual < 5 || 13 < actual)',
-  filepath: 'test/fixtures/LogicalExpression/fixture.js',
+assert.ok(_rec2._expr(_rec2._capt(_rec2._capt(_rec2._capt(actual, "arguments/0/left/left") < 5, "arguments/0/left") || _rec2._capt(13 < _rec2._capt(actual, "arguments/0/right/right"), "arguments/0/right"), "arguments/0"), {
+  content: "assert.ok(actual < 5 || 13 < actual)",
+  filepath: "test/fixtures/LogicalExpression/fixture.js",
   line: 5,
-  ast: '{"type":"CallExpression","callee":{"type":"MemberExpression","object":{"type":"Identifier","name":"assert","range":[0,6]},"property":{"type":"Identifier","name":"ok","range":[7,9]},"computed":false,"range":[0,9]},"arguments":[{"type":"LogicalExpression","operator":"||","left":{"type":"BinaryExpression","operator":"<","left":{"type":"Identifier","name":"actual","range":[10,16]},"right":{"type":"NumericLiteral","value":5,"range":[19,20]},"range":[10,20]},"right":{"type":"BinaryExpression","operator":"<","left":{"type":"NumericLiteral","value":13,"range":[24,26]},"right":{"type":"Identifier","name":"actual","range":[29,35]},"range":[24,35]},"range":[10,35]}],"range":[0,36]}',
-  tokens: '[{"type":{"label":"name"},"value":"assert","range":[0,6]},{"type":{"label":"."},"range":[6,7]},{"type":{"label":"name"},"value":"ok","range":[7,9]},{"type":{"label":"("},"range":[9,10]},{"type":{"label":"name"},"value":"actual","range":[10,16]},{"type":{"label":"</>"},"value":"<","range":[17,18]},{"type":{"label":"num"},"value":5,"range":[19,20]},{"type":{"label":"||"},"value":"||","range":[21,23]},{"type":{"label":"num"},"value":13,"range":[24,26]},{"type":{"label":"</>"},"value":"<","range":[27,28]},{"type":{"label":"name"},"value":"actual","range":[29,35]},{"type":{"label":")"},"range":[35,36]}]',
+  ast: "{\"type\":\"CallExpression\",\"callee\":{\"type\":\"MemberExpression\",\"object\":{\"type\":\"Identifier\",\"name\":\"assert\",\"range\":[0,6]},\"property\":{\"type\":\"Identifier\",\"name\":\"ok\",\"range\":[7,9]},\"computed\":false,\"range\":[0,9]},\"arguments\":[{\"type\":\"LogicalExpression\",\"operator\":\"||\",\"left\":{\"type\":\"BinaryExpression\",\"operator\":\"<\",\"left\":{\"type\":\"Identifier\",\"name\":\"actual\",\"range\":[10,16]},\"right\":{\"type\":\"NumericLiteral\",\"value\":5,\"range\":[19,20]},\"range\":[10,20]},\"right\":{\"type\":\"BinaryExpression\",\"operator\":\"<\",\"left\":{\"type\":\"NumericLiteral\",\"value\":13,\"range\":[24,26]},\"right\":{\"type\":\"Identifier\",\"name\":\"actual\",\"range\":[29,35]},\"range\":[24,35]},\"range\":[10,35]}],\"range\":[0,36]}",
+  tokens: "[{\"type\":{\"label\":\"name\"},\"value\":\"assert\",\"range\":[0,6]},{\"type\":{\"label\":\".\"},\"range\":[6,7]},{\"type\":{\"label\":\"name\"},\"value\":\"ok\",\"range\":[7,9]},{\"type\":{\"label\":\"(\"},\"range\":[9,10]},{\"type\":{\"label\":\"name\"},\"value\":\"actual\",\"range\":[10,16]},{\"type\":{\"label\":\"</>\"},\"value\":\"<\",\"range\":[17,18]},{\"type\":{\"label\":\"num\"},\"value\":5,\"range\":[19,20]},{\"type\":{\"label\":\"||\"},\"value\":\"||\",\"range\":[21,23]},{\"type\":{\"label\":\"num\"},\"value\":13,\"range\":[24,26]},{\"type\":{\"label\":\"</>\"},\"value\":\"<\",\"range\":[27,28]},{\"type\":{\"label\":\"name\"},\"value\":\"actual\",\"range\":[29,35]},{\"type\":{\"label\":\")\"},\"range\":[35,36]}]",
   visitorKeys: _powerAssertVisitorKeys
 }));
-
-assert(_rec3._expr(_rec3._capt(_rec3._capt(2 > _rec3._capt(actual, 'arguments/0/left/right'), 'arguments/0/left') && _rec3._capt(_rec3._capt(actual, 'arguments/0/right/left') < 13, 'arguments/0/right'), 'arguments/0'), {
-  content: 'assert(2 > actual && actual < 13)',
-  filepath: 'test/fixtures/LogicalExpression/fixture.js',
+assert(_rec3._expr(_rec3._capt(_rec3._capt(2 > _rec3._capt(actual, "arguments/0/left/right"), "arguments/0/left") && _rec3._capt(_rec3._capt(actual, "arguments/0/right/left") < 13, "arguments/0/right"), "arguments/0"), {
+  content: "assert(2 > actual && actual < 13)",
+  filepath: "test/fixtures/LogicalExpression/fixture.js",
   line: 7,
-  ast: '{"type":"CallExpression","callee":{"type":"Identifier","name":"assert","range":[0,6]},"arguments":[{"type":"LogicalExpression","operator":"&&","left":{"type":"BinaryExpression","operator":">","left":{"type":"NumericLiteral","value":2,"range":[7,8]},"right":{"type":"Identifier","name":"actual","range":[11,17]},"range":[7,17]},"right":{"type":"BinaryExpression","operator":"<","left":{"type":"Identifier","name":"actual","range":[21,27]},"right":{"type":"NumericLiteral","value":13,"range":[30,32]},"range":[21,32]},"range":[7,32]}],"range":[0,33]}',
-  tokens: '[{"type":{"label":"name"},"value":"assert","range":[0,6]},{"type":{"label":"("},"range":[6,7]},{"type":{"label":"num"},"value":2,"range":[7,8]},{"type":{"label":"</>"},"value":">","range":[9,10]},{"type":{"label":"name"},"value":"actual","range":[11,17]},{"type":{"label":"&&"},"value":"&&","range":[18,20]},{"type":{"label":"name"},"value":"actual","range":[21,27]},{"type":{"label":"</>"},"value":"<","range":[28,29]},{"type":{"label":"num"},"value":13,"range":[30,32]},{"type":{"label":")"},"range":[32,33]}]',
+  ast: "{\"type\":\"CallExpression\",\"callee\":{\"type\":\"Identifier\",\"name\":\"assert\",\"range\":[0,6]},\"arguments\":[{\"type\":\"LogicalExpression\",\"operator\":\"&&\",\"left\":{\"type\":\"BinaryExpression\",\"operator\":\">\",\"left\":{\"type\":\"NumericLiteral\",\"value\":2,\"range\":[7,8]},\"right\":{\"type\":\"Identifier\",\"name\":\"actual\",\"range\":[11,17]},\"range\":[7,17]},\"right\":{\"type\":\"BinaryExpression\",\"operator\":\"<\",\"left\":{\"type\":\"Identifier\",\"name\":\"actual\",\"range\":[21,27]},\"right\":{\"type\":\"NumericLiteral\",\"value\":13,\"range\":[30,32]},\"range\":[21,32]},\"range\":[7,32]}],\"range\":[0,33]}",
+  tokens: "[{\"type\":{\"label\":\"name\"},\"value\":\"assert\",\"range\":[0,6]},{\"type\":{\"label\":\"(\"},\"range\":[6,7]},{\"type\":{\"label\":\"num\"},\"value\":2,\"range\":[7,8]},{\"type\":{\"label\":\"</>\"},\"value\":\">\",\"range\":[9,10]},{\"type\":{\"label\":\"name\"},\"value\":\"actual\",\"range\":[11,17]},{\"type\":{\"label\":\"&&\"},\"value\":\"&&\",\"range\":[18,20]},{\"type\":{\"label\":\"name\"},\"value\":\"actual\",\"range\":[21,27]},{\"type\":{\"label\":\"</>\"},\"value\":\"<\",\"range\":[28,29]},{\"type\":{\"label\":\"num\"},\"value\":13,\"range\":[30,32]},{\"type\":{\"label\":\")\"},\"range\":[32,33]}]",
   visitorKeys: _powerAssertVisitorKeys
 }));
-
-assert(_rec4._expr(_rec4._capt(_rec4._capt(2 > _rec4._capt(actual, 'arguments/0/left/right'), 'arguments/0/left') && _rec4._capt(_rec4._capt(actual, 'arguments/0/right/left') < 13, 'arguments/0/right'), 'arguments/0'), {
-  content: 'assert(2 > actual && actual < 13)',
-  filepath: 'test/fixtures/LogicalExpression/fixture.js',
+assert(_rec4._expr(_rec4._capt(_rec4._capt(2 > _rec4._capt(actual, "arguments/0/left/right"), "arguments/0/left") && _rec4._capt(_rec4._capt(actual, "arguments/0/right/left") < 13, "arguments/0/right"), "arguments/0"), {
+  content: "assert(2 > actual && actual < 13)",
+  filepath: "test/fixtures/LogicalExpression/fixture.js",
   line: 9,
-  ast: '{"type":"CallExpression","callee":{"type":"Identifier","name":"assert","range":[0,6]},"arguments":[{"type":"LogicalExpression","operator":"&&","left":{"type":"BinaryExpression","operator":">","left":{"type":"NumericLiteral","value":2,"range":[7,8]},"right":{"type":"Identifier","name":"actual","range":[11,17]},"range":[7,17]},"right":{"type":"BinaryExpression","operator":"<","left":{"type":"Identifier","name":"actual","range":[21,27]},"right":{"type":"NumericLiteral","value":13,"range":[30,32]},"range":[21,32]},"range":[7,32]}],"range":[0,33]}',
-  tokens: '[{"type":{"label":"name"},"value":"assert","range":[0,6]},{"type":{"label":"("},"range":[6,7]},{"type":{"label":"num"},"value":2,"range":[7,8]},{"type":{"label":"</>"},"value":">","range":[9,10]},{"type":{"label":"name"},"value":"actual","range":[11,17]},{"type":{"label":"&&"},"value":"&&","range":[18,20]},{"type":{"label":"name"},"value":"actual","range":[21,27]},{"type":{"label":"</>"},"value":"<","range":[28,29]},{"type":{"label":"num"},"value":13,"range":[30,32]},{"type":{"label":")"},"range":[32,33]}]',
+  ast: "{\"type\":\"CallExpression\",\"callee\":{\"type\":\"Identifier\",\"name\":\"assert\",\"range\":[0,6]},\"arguments\":[{\"type\":\"LogicalExpression\",\"operator\":\"&&\",\"left\":{\"type\":\"BinaryExpression\",\"operator\":\">\",\"left\":{\"type\":\"NumericLiteral\",\"value\":2,\"range\":[7,8]},\"right\":{\"type\":\"Identifier\",\"name\":\"actual\",\"range\":[11,17]},\"range\":[7,17]},\"right\":{\"type\":\"BinaryExpression\",\"operator\":\"<\",\"left\":{\"type\":\"Identifier\",\"name\":\"actual\",\"range\":[21,27]},\"right\":{\"type\":\"NumericLiteral\",\"value\":13,\"range\":[30,32]},\"range\":[21,32]},\"range\":[7,32]}],\"range\":[0,33]}",
+  tokens: "[{\"type\":{\"label\":\"name\"},\"value\":\"assert\",\"range\":[0,6]},{\"type\":{\"label\":\"(\"},\"range\":[6,7]},{\"type\":{\"label\":\"num\"},\"value\":2,\"range\":[7,8]},{\"type\":{\"label\":\"</>\"},\"value\":\">\",\"range\":[9,10]},{\"type\":{\"label\":\"name\"},\"value\":\"actual\",\"range\":[11,17]},{\"type\":{\"label\":\"&&\"},\"value\":\"&&\",\"range\":[18,20]},{\"type\":{\"label\":\"name\"},\"value\":\"actual\",\"range\":[21,27]},{\"type\":{\"label\":\"</>\"},\"value\":\"<\",\"range\":[28,29]},{\"type\":{\"label\":\"num\"},\"value\":13,\"range\":[30,32]},{\"type\":{\"label\":\")\"},\"range\":[32,33]}]",
   visitorKeys: _powerAssertVisitorKeys
 }));
-
-assert.equal(_rec5._expr(_rec5._capt(_rec5._capt(5 < _rec5._capt(actual, 'arguments/0/left/right'), 'arguments/0/left') && _rec5._capt(_rec5._capt(actual, 'arguments/0/right/left') < 13, 'arguments/0/right'), 'arguments/0'), {
-  content: 'assert.equal(5 < actual && actual < 13, falsy)',
-  filepath: 'test/fixtures/LogicalExpression/fixture.js',
+assert.equal(_rec5._expr(_rec5._capt(_rec5._capt(5 < _rec5._capt(actual, "arguments/0/left/right"), "arguments/0/left") && _rec5._capt(_rec5._capt(actual, "arguments/0/right/left") < 13, "arguments/0/right"), "arguments/0"), {
+  content: "assert.equal(5 < actual && actual < 13, falsy)",
+  filepath: "test/fixtures/LogicalExpression/fixture.js",
   line: 11,
-  ast: '{"type":"CallExpression","callee":{"type":"MemberExpression","object":{"type":"Identifier","name":"assert","range":[0,6]},"property":{"type":"Identifier","name":"equal","range":[7,12]},"computed":false,"range":[0,12]},"arguments":[{"type":"LogicalExpression","operator":"&&","left":{"type":"BinaryExpression","operator":"<","left":{"type":"NumericLiteral","value":5,"range":[13,14]},"right":{"type":"Identifier","name":"actual","range":[17,23]},"range":[13,23]},"right":{"type":"BinaryExpression","operator":"<","left":{"type":"Identifier","name":"actual","range":[27,33]},"right":{"type":"NumericLiteral","value":13,"range":[36,38]},"range":[27,38]},"range":[13,38]},{"type":"Identifier","name":"falsy","range":[40,45]}],"range":[0,46]}',
-  tokens: '[{"type":{"label":"name"},"value":"assert","range":[0,6]},{"type":{"label":"."},"range":[6,7]},{"type":{"label":"name"},"value":"equal","range":[7,12]},{"type":{"label":"("},"range":[12,13]},{"type":{"label":"num"},"value":5,"range":[13,14]},{"type":{"label":"</>"},"value":"<","range":[15,16]},{"type":{"label":"name"},"value":"actual","range":[17,23]},{"type":{"label":"&&"},"value":"&&","range":[24,26]},{"type":{"label":"name"},"value":"actual","range":[27,33]},{"type":{"label":"</>"},"value":"<","range":[34,35]},{"type":{"label":"num"},"value":13,"range":[36,38]},{"type":{"label":","},"range":[38,39]},{"type":{"label":"name"},"value":"falsy","range":[40,45]},{"type":{"label":")"},"range":[45,46]}]',
+  ast: "{\"type\":\"CallExpression\",\"callee\":{\"type\":\"MemberExpression\",\"object\":{\"type\":\"Identifier\",\"name\":\"assert\",\"range\":[0,6]},\"property\":{\"type\":\"Identifier\",\"name\":\"equal\",\"range\":[7,12]},\"computed\":false,\"range\":[0,12]},\"arguments\":[{\"type\":\"LogicalExpression\",\"operator\":\"&&\",\"left\":{\"type\":\"BinaryExpression\",\"operator\":\"<\",\"left\":{\"type\":\"NumericLiteral\",\"value\":5,\"range\":[13,14]},\"right\":{\"type\":\"Identifier\",\"name\":\"actual\",\"range\":[17,23]},\"range\":[13,23]},\"right\":{\"type\":\"BinaryExpression\",\"operator\":\"<\",\"left\":{\"type\":\"Identifier\",\"name\":\"actual\",\"range\":[27,33]},\"right\":{\"type\":\"NumericLiteral\",\"value\":13,\"range\":[36,38]},\"range\":[27,38]},\"range\":[13,38]},{\"type\":\"Identifier\",\"name\":\"falsy\",\"range\":[40,45]}],\"range\":[0,46]}",
+  tokens: "[{\"type\":{\"label\":\"name\"},\"value\":\"assert\",\"range\":[0,6]},{\"type\":{\"label\":\".\"},\"range\":[6,7]},{\"type\":{\"label\":\"name\"},\"value\":\"equal\",\"range\":[7,12]},{\"type\":{\"label\":\"(\"},\"range\":[12,13]},{\"type\":{\"label\":\"num\"},\"value\":5,\"range\":[13,14]},{\"type\":{\"label\":\"</>\"},\"value\":\"<\",\"range\":[15,16]},{\"type\":{\"label\":\"name\"},\"value\":\"actual\",\"range\":[17,23]},{\"type\":{\"label\":\"&&\"},\"value\":\"&&\",\"range\":[24,26]},{\"type\":{\"label\":\"name\"},\"value\":\"actual\",\"range\":[27,33]},{\"type\":{\"label\":\"</>\"},\"value\":\"<\",\"range\":[34,35]},{\"type\":{\"label\":\"num\"},\"value\":13,\"range\":[36,38]},{\"type\":{\"label\":\",\"},\"range\":[38,39]},{\"type\":{\"label\":\"name\"},\"value\":\"falsy\",\"range\":[40,45]},{\"type\":{\"label\":\")\"},\"range\":[45,46]}]",
   visitorKeys: _powerAssertVisitorKeys
-}), _rec6._expr(_rec6._capt(falsy, 'arguments/1'), {
-  content: 'assert.equal(5 < actual && actual < 13, falsy)',
-  filepath: 'test/fixtures/LogicalExpression/fixture.js',
+}), _rec6._expr(_rec6._capt(falsy, "arguments/1"), {
+  content: "assert.equal(5 < actual && actual < 13, falsy)",
+  filepath: "test/fixtures/LogicalExpression/fixture.js",
   line: 11,
-  ast: '{"type":"CallExpression","callee":{"type":"MemberExpression","object":{"type":"Identifier","name":"assert","range":[0,6]},"property":{"type":"Identifier","name":"equal","range":[7,12]},"computed":false,"range":[0,12]},"arguments":[{"type":"LogicalExpression","operator":"&&","left":{"type":"BinaryExpression","operator":"<","left":{"type":"NumericLiteral","value":5,"range":[13,14]},"right":{"type":"Identifier","name":"actual","range":[17,23]},"range":[13,23]},"right":{"type":"BinaryExpression","operator":"<","left":{"type":"Identifier","name":"actual","range":[27,33]},"right":{"type":"NumericLiteral","value":13,"range":[36,38]},"range":[27,38]},"range":[13,38]},{"type":"Identifier","name":"falsy","range":[40,45]}],"range":[0,46]}',
-  tokens: '[{"type":{"label":"name"},"value":"assert","range":[0,6]},{"type":{"label":"."},"range":[6,7]},{"type":{"label":"name"},"value":"equal","range":[7,12]},{"type":{"label":"("},"range":[12,13]},{"type":{"label":"num"},"value":5,"range":[13,14]},{"type":{"label":"</>"},"value":"<","range":[15,16]},{"type":{"label":"name"},"value":"actual","range":[17,23]},{"type":{"label":"&&"},"value":"&&","range":[24,26]},{"type":{"label":"name"},"value":"actual","range":[27,33]},{"type":{"label":"</>"},"value":"<","range":[34,35]},{"type":{"label":"num"},"value":13,"range":[36,38]},{"type":{"label":","},"range":[38,39]},{"type":{"label":"name"},"value":"falsy","range":[40,45]},{"type":{"label":")"},"range":[45,46]}]',
+  ast: "{\"type\":\"CallExpression\",\"callee\":{\"type\":\"MemberExpression\",\"object\":{\"type\":\"Identifier\",\"name\":\"assert\",\"range\":[0,6]},\"property\":{\"type\":\"Identifier\",\"name\":\"equal\",\"range\":[7,12]},\"computed\":false,\"range\":[0,12]},\"arguments\":[{\"type\":\"LogicalExpression\",\"operator\":\"&&\",\"left\":{\"type\":\"BinaryExpression\",\"operator\":\"<\",\"left\":{\"type\":\"NumericLiteral\",\"value\":5,\"range\":[13,14]},\"right\":{\"type\":\"Identifier\",\"name\":\"actual\",\"range\":[17,23]},\"range\":[13,23]},\"right\":{\"type\":\"BinaryExpression\",\"operator\":\"<\",\"left\":{\"type\":\"Identifier\",\"name\":\"actual\",\"range\":[27,33]},\"right\":{\"type\":\"NumericLiteral\",\"value\":13,\"range\":[36,38]},\"range\":[27,38]},\"range\":[13,38]},{\"type\":\"Identifier\",\"name\":\"falsy\",\"range\":[40,45]}],\"range\":[0,46]}",
+  tokens: "[{\"type\":{\"label\":\"name\"},\"value\":\"assert\",\"range\":[0,6]},{\"type\":{\"label\":\".\"},\"range\":[6,7]},{\"type\":{\"label\":\"name\"},\"value\":\"equal\",\"range\":[7,12]},{\"type\":{\"label\":\"(\"},\"range\":[12,13]},{\"type\":{\"label\":\"num\"},\"value\":5,\"range\":[13,14]},{\"type\":{\"label\":\"</>\"},\"value\":\"<\",\"range\":[15,16]},{\"type\":{\"label\":\"name\"},\"value\":\"actual\",\"range\":[17,23]},{\"type\":{\"label\":\"&&\"},\"value\":\"&&\",\"range\":[24,26]},{\"type\":{\"label\":\"name\"},\"value\":\"actual\",\"range\":[27,33]},{\"type\":{\"label\":\"</>\"},\"value\":\"<\",\"range\":[34,35]},{\"type\":{\"label\":\"num\"},\"value\":13,\"range\":[36,38]},{\"type\":{\"label\":\",\"},\"range\":[38,39]},{\"type\":{\"label\":\"name\"},\"value\":\"falsy\",\"range\":[40,45]},{\"type\":{\"label\":\")\"},\"range\":[45,46]}]",
   visitorKeys: _powerAssertVisitorKeys
 }));
diff --git a/test/fixtures/LogicalExpression/expected.js b/test/fixtures/LogicalExpression/expected.js
index effb429..3c69341 100644
--- a/test/fixtures/LogicalExpression/expected.js
+++ b/test/fixtures/LogicalExpression/expected.js
@@ -8,36 +8,32 @@ var _powerAssertRecorder = function () { function PowerAssertRecorder() { this.c
     _rec5 = new _powerAssertRecorder(),
     _rec6 = new _powerAssertRecorder();
 
-assert(_rec._expr(_rec._capt(_rec._capt(5 < _rec._capt(actual, 'arguments/0/left/right'), 'arguments/0/left') && _rec._capt(_rec._capt(actual, 'arguments/0/right/left') < 13, 'arguments/0/right'), 'arguments/0'), {
-  content: 'assert(5 < actual && actual < 13)',
-  filepath: 'test/fixtures/LogicalExpression/fixture.js',
+assert(_rec._expr(_rec._capt(_rec._capt(5 < _rec._capt(actual, "arguments/0/left/right"), "arguments/0/left") && _rec._capt(_rec._capt(actual, "arguments/0/right/left") < 13, "arguments/0/right"), "arguments/0"), {
+  content: "assert(5 < actual && actual < 13)",
+  filepath: "test/fixtures/LogicalExpression/fixture.js",
   line: 3
 }));
-
-assert.ok(_rec2._expr(_rec2._capt(_rec2._capt(_rec2._capt(actual, 'arguments/0/left/left') < 5, 'arguments/0/left') || _rec2._capt(13 < _rec2._capt(actual, 'arguments/0/right/right'), 'arguments/0/right'), 'arguments/0'), {
-  content: 'assert.ok(actual < 5 || 13 < actual)',
-  filepath: 'test/fixtures/LogicalExpression/fixture.js',
+assert.ok(_rec2._expr(_rec2._capt(_rec2._capt(_rec2._capt(actual, "arguments/0/left/left") < 5, "arguments/0/left") || _rec2._capt(13 < _rec2._capt(actual, "arguments/0/right/right"), "arguments/0/right"), "arguments/0"), {
+  content: "assert.ok(actual < 5 || 13 < actual)",
+  filepath: "test/fixtures/LogicalExpression/fixture.js",
   line: 5
 }));
-
-assert(_rec3._expr(_rec3._capt(_rec3._capt(2 > _rec3._capt(actual, 'arguments/0/left/right'), 'arguments/0/left') && _rec3._capt(_rec3._capt(actual, 'arguments/0/right/left') < 13, 'arguments/0/right'), 'arguments/0'), {
-  content: 'assert(2 > actual && actual < 13)',
-  filepath: 'test/fixtures/LogicalExpression/fixture.js',
+assert(_rec3._expr(_rec3._capt(_rec3._capt(2 > _rec3._capt(actual, "arguments/0/left/right"), "arguments/0/left") && _rec3._capt(_rec3._capt(actual, "arguments/0/right/left") < 13, "arguments/0/right"), "arguments/0"), {
+  content: "assert(2 > actual && actual < 13)",
+  filepath: "test/fixtures/LogicalExpression/fixture.js",
   line: 7
 }));
-
-assert(_rec4._expr(_rec4._capt(_rec4._capt(2 > _rec4._capt(actual, 'arguments/0/left/right'), 'arguments/0/left') && _rec4._capt(_rec4._capt(actual, 'arguments/0/right/left') < 13, 'arguments/0/right'), 'arguments/0'), {
-  content: 'assert(2 > actual && actual < 13)',
-  filepath: 'test/fixtures/LogicalExpression/fixture.js',
+assert(_rec4._expr(_rec4._capt(_rec4._capt(2 > _rec4._capt(actual, "arguments/0/left/right"), "arguments/0/left") && _rec4._capt(_rec4._capt(actual, "arguments/0/right/left") < 13, "arguments/0/right"), "arguments/0"), {
+  content: "assert(2 > actual && actual < 13)",
+  filepath: "test/fixtures/LogicalExpression/fixture.js",
   line: 9
 }));
-
-assert.equal(_rec5._expr(_rec5._capt(_rec5._capt(5 < _rec5._capt(actual, 'arguments/0/left/right'), 'arguments/0/left') && _rec5._capt(_rec5._capt(actual, 'arguments/0/right/left') < 13, 'arguments/0/right'), 'arguments/0'), {
-  content: 'assert.equal(5 < actual && actual < 13, falsy)',
-  filepath: 'test/fixtures/LogicalExpression/fixture.js',
+assert.equal(_rec5._expr(_rec5._capt(_rec5._capt(5 < _rec5._capt(actual, "arguments/0/left/right"), "arguments/0/left") && _rec5._capt(_rec5._capt(actual, "arguments/0/right/left") < 13, "arguments/0/right"), "arguments/0"), {
+  content: "assert.equal(5 < actual && actual < 13, falsy)",
+  filepath: "test/fixtures/LogicalExpression/fixture.js",
   line: 11
-}), _rec6._expr(_rec6._capt(falsy, 'arguments/1'), {
-  content: 'assert.equal(5 < actual && actual < 13, falsy)',
-  filepath: 'test/fixtures/LogicalExpression/fixture.js',
+}), _rec6._expr(_rec6._capt(falsy, "arguments/1"), {
+  content: "assert.equal(5 < actual && actual < 13, falsy)",
+  filepath: "test/fixtures/LogicalExpression/fixture.js",
   line: 11
 }));
diff --git a/test/fixtures/MemberExpression/expected-presets-es2015.js b/test/fixtures/MemberExpression/expected-presets-es2015.js
index 77f06cc..f0ff8a6 100644
--- a/test/fixtures/MemberExpression/expected-presets-es2015.js
+++ b/test/fixtures/MemberExpression/expected-presets-es2015.js
@@ -1,6 +1,6 @@
 'use strict';
 
-var _powerAssertVisitorKeys = '{"ArrayExpression":["elements"],"AssignmentExpression":["left","right"],"BinaryExpression":["left","right"],"Directive":["value"],"DirectiveLiteral":[],"BlockStatement":["directives","body"],"BreakStatement":["label"],"CallExpression":["callee","arguments"],"CatchClause":["param","body"],"ConditionalExpression":["test","consequent","alternate"],"ContinueStatement":["label"],"DebuggerStatement":[],"DoWhileStatement":["test","body"],"EmptyStatement":[],"ExpressionStatement":["expression"],"File":["program"],"ForInStatement":["left","right","body"],"ForStatement":["init","test","update","body"],"FunctionDeclaration":["id","params","body","returnType","typeParameters"],"FunctionExpression":["id","params","body","returnType","typeParameters"],"Identifier":["typeAnnotation"],"IfStatement":["test","consequent","alternate"],"LabeledStatement":["label","body"],"StringLiteral":[],"NumericLiteral":[],"NullLiteral":[],"BooleanLiteral":[],"RegExpLiteral":[],"LogicalExpression":["left","right"],"MemberExpression":["object","property"],"NewExpression":["callee","arguments"],"Program":["directives","body"],"ObjectExpression":["properties"],"ObjectMethod":["key","params","body","decorators","returnType","typeParameters"],"ObjectProperty":["key","value","decorators"],"RestElement":["argument","typeAnnotation"],"ReturnStatement":["argument"],"SequenceExpression":["expressions"],"SwitchCase":["test","consequent"],"SwitchStatement":["discriminant","cases"],"ThisExpression":[],"ThrowStatement":["argument"],"TryStatement":["block","handler","finalizer"],"UnaryExpression":["argument"],"UpdateExpression":["argument"],"VariableDeclaration":["declarations"],"VariableDeclarator":["id","init"],"WhileStatement":["test","body"],"WithStatement":["object","body"],"AssignmentPattern":["left","right"],"ArrayPattern":["elements","typeAnnotation"],"ArrowFunctionExpression":["params","body","returnType","typeParameters"],"ClassBody":["body"],"ClassDeclaration":["id","body","superClass","mixins","typeParameters","superTypeParameters","implements","decorators"],"ClassExpression":["id","body","superClass","mixins","typeParameters","superTypeParameters","implements","decorators"],"ExportAllDeclaration":["source"],"ExportDefaultDeclaration":["declaration"],"ExportNamedDeclaration":["declaration","specifiers","source"],"ExportSpecifier":["local","exported"],"ForOfStatement":["left","right","body"],"ImportDeclaration":["specifiers","source"],"ImportDefaultSpecifier":["local"],"ImportNamespaceSpecifier":["local"],"ImportSpecifier":["local","imported"],"MetaProperty":["meta","property"],"ClassMethod":["key","params","body","decorators","returnType","typeParameters"],"ObjectPattern":["properties","typeAnnotation"],"SpreadElement":["argument"],"Super":[],"TaggedTemplateExpression":["tag","quasi"],"TemplateElement":[],"TemplateLiteral":["quasis","expressions"],"YieldExpression":["argument"],"AnyTypeAnnotation":[],"ArrayTypeAnnotation":["elementType"],"BooleanTypeAnnotation":[],"BooleanLiteralTypeAnnotation":[],"NullLiteralTypeAnnotation":[],"ClassImplements":["id","typeParameters"],"ClassProperty":["key","value","typeAnnotation","decorators"],"DeclareClass":["id","typeParameters","extends","body"],"DeclareFunction":["id"],"DeclareInterface":["id","typeParameters","extends","body"],"DeclareModule":["id","body"],"DeclareModuleExports":["typeAnnotation"],"DeclareTypeAlias":["id","typeParameters","right"],"DeclareOpaqueType":["id","typeParameters","supertype"],"DeclareVariable":["id"],"DeclareExportDeclaration":["declaration","specifiers","source"],"ExistentialTypeParam":[],"FunctionTypeAnnotation":["typeParameters","params","rest","returnType"],"FunctionTypeParam":["name","typeAnnotation"],"GenericTypeAnnotation":["id","typeParameters"],"InterfaceExtends":["id","typeParameters"],"InterfaceDeclaration":["id","typeParameters","extends","body"],"IntersectionTypeAnnotation":["types"],"MixedTypeAnnotation":[],"EmptyTypeAnnotation":[],"NullableTypeAnnotation":["typeAnnotation"],"NumericLiteralTypeAnnotation":[],"NumberTypeAnnotation":[],"StringLiteralTypeAnnotation":[],"StringTypeAnnotation":[],"ThisTypeAnnotation":[],"TupleTypeAnnotation":["types"],"TypeofTypeAnnotation":["argument"],"TypeAlias":["id","typeParameters","right"],"OpaqueType":["id","typeParameters","impltype","supertype"],"TypeAnnotation":["typeAnnotation"],"TypeCastExpression":["expression","typeAnnotation"],"TypeParameter":["bound"],"TypeParameterDeclaration":["params"],"TypeParameterInstantiation":["params"],"ObjectTypeAnnotation":["properties","indexers","callProperties"],"ObjectTypeCallProperty":["value"],"ObjectTypeIndexer":["id","key","value"],"ObjectTypeProperty":["key","value"],"ObjectTypeSpreadProperty":["argument"],"QualifiedTypeIdentifier":["id","qualification"],"UnionTypeAnnotation":["types"],"VoidTypeAnnotation":[],"JSXAttribute":["name","value"],"JSXClosingElement":["name"],"JSXElement":["openingElement","children","closingElement"],"JSXEmptyExpression":[],"JSXExpressionContainer":["expression"],"JSXSpreadChild":["expression"],"JSXIdentifier":[],"JSXMemberExpression":["object","property"],"JSXNamespacedName":["namespace","name"],"JSXOpeningElement":["name","attributes"],"JSXSpreadAttribute":["argument"],"JSXText":[],"Noop":[],"ParenthesizedExpression":["expression"],"AwaitExpression":["argument"],"ForAwaitStatement":["left","right","body"],"BindExpression":["object","callee"],"Import":[],"Decorator":["expression"],"DoExpression":["body"],"ExportDefaultSpecifier":["exported"],"ExportNamespaceSpecifier":["exported"],"RestProperty":["argument"],"SpreadProperty":["argument"]}',
+var _powerAssertVisitorKeys = "{\"ArrayExpression\":[\"elements\"],\"AssignmentExpression\":[\"left\",\"right\"],\"BinaryExpression\":[\"left\",\"right\"],\"Directive\":[\"value\"],\"DirectiveLiteral\":[],\"BlockStatement\":[\"directives\",\"body\"],\"BreakStatement\":[\"label\"],\"CallExpression\":[\"callee\",\"arguments\",\"typeParameters\"],\"CatchClause\":[\"param\",\"body\"],\"ConditionalExpression\":[\"test\",\"consequent\",\"alternate\"],\"ContinueStatement\":[\"label\"],\"DebuggerStatement\":[],\"DoWhileStatement\":[\"test\",\"body\"],\"EmptyStatement\":[],\"ExpressionStatement\":[\"expression\"],\"File\":[\"program\"],\"ForInStatement\":[\"left\",\"right\",\"body\"],\"ForStatement\":[\"init\",\"test\",\"update\",\"body\"],\"FunctionDeclaration\":[\"id\",\"params\",\"body\",\"returnType\",\"typeParameters\"],\"FunctionExpression\":[\"id\",\"params\",\"body\",\"returnType\",\"typeParameters\"],\"Identifier\":[\"typeAnnotation\"],\"IfStatement\":[\"test\",\"consequent\",\"alternate\"],\"LabeledStatement\":[\"label\",\"body\"],\"StringLiteral\":[],\"NumericLiteral\":[],\"NullLiteral\":[],\"BooleanLiteral\":[],\"RegExpLiteral\":[],\"LogicalExpression\":[\"left\",\"right\"],\"MemberExpression\":[\"object\",\"property\"],\"NewExpression\":[\"callee\",\"arguments\",\"typeParameters\"],\"Program\":[\"directives\",\"body\"],\"ObjectExpression\":[\"properties\"],\"ObjectMethod\":[\"key\",\"params\",\"body\",\"decorators\",\"returnType\",\"typeParameters\"],\"ObjectProperty\":[\"key\",\"value\",\"decorators\"],\"RestElement\":[\"argument\",\"typeAnnotation\"],\"ReturnStatement\":[\"argument\"],\"SequenceExpression\":[\"expressions\"],\"SwitchCase\":[\"test\",\"consequent\"],\"SwitchStatement\":[\"discriminant\",\"cases\"],\"ThisExpression\":[],\"ThrowStatement\":[\"argument\"],\"TryStatement\":[\"block\",\"handler\",\"finalizer\"],\"UnaryExpression\":[\"argument\"],\"UpdateExpression\":[\"argument\"],\"VariableDeclaration\":[\"declarations\"],\"VariableDeclarator\":[\"id\",\"init\"],\"WhileStatement\":[\"test\",\"body\"],\"WithStatement\":[\"object\",\"body\"],\"AssignmentPattern\":[\"left\",\"right\"],\"ArrayPattern\":[\"elements\",\"typeAnnotation\"],\"ArrowFunctionExpression\":[\"params\",\"body\",\"returnType\",\"typeParameters\"],\"ClassBody\":[\"body\"],\"ClassDeclaration\":[\"id\",\"body\",\"superClass\",\"mixins\",\"typeParameters\",\"superTypeParameters\",\"implements\",\"decorators\"],\"ClassExpression\":[\"id\",\"body\",\"superClass\",\"mixins\",\"typeParameters\",\"superTypeParameters\",\"implements\",\"decorators\"],\"ExportAllDeclaration\":[\"source\"],\"ExportDefaultDeclaration\":[\"declaration\"],\"ExportNamedDeclaration\":[\"declaration\",\"specifiers\",\"source\"],\"ExportSpecifier\":[\"local\",\"exported\"],\"ForOfStatement\":[\"left\",\"right\",\"body\"],\"ImportDeclaration\":[\"specifiers\",\"source\"],\"ImportDefaultSpecifier\":[\"local\"],\"ImportNamespaceSpecifier\":[\"local\"],\"ImportSpecifier\":[\"local\",\"imported\"],\"MetaProperty\":[\"meta\",\"property\"],\"ClassMethod\":[\"key\",\"params\",\"body\",\"decorators\",\"returnType\",\"typeParameters\"],\"ObjectPattern\":[\"properties\",\"typeAnnotation\"],\"SpreadElement\":[\"argument\"],\"Super\":[],\"TaggedTemplateExpression\":[\"tag\",\"quasi\"],\"TemplateElement\":[],\"TemplateLiteral\":[\"quasis\",\"expressions\"],\"YieldExpression\":[\"argument\"],\"AnyTypeAnnotation\":[],\"ArrayTypeAnnotation\":[\"elementType\"],\"BooleanTypeAnnotation\":[],\"BooleanLiteralTypeAnnotation\":[],\"NullLiteralTypeAnnotation\":[],\"ClassImplements\":[\"id\",\"typeParameters\"],\"DeclareClass\":[\"id\",\"typeParameters\",\"extends\",\"body\"],\"DeclareFunction\":[\"id\"],\"DeclareInterface\":[\"id\",\"typeParameters\",\"extends\",\"body\"],\"DeclareModule\":[\"id\",\"body\"],\"DeclareModuleExports\":[\"typeAnnotation\"],\"DeclareTypeAlias\":[\"id\",\"typeParameters\",\"right\"],\"DeclareOpaqueType\":[\"id\",\"typeParameters\",\"supertype\"],\"DeclareVariable\":[\"id\"],\"DeclareExportDeclaration\":[\"declaration\",\"specifiers\",\"source\"],\"DeclareExportAllDeclaration\":[\"source\"],\"DeclaredPredicate\":[\"value\"],\"ExistsTypeAnnotation\":[],\"FunctionTypeAnnotation\":[\"typeParameters\",\"params\",\"rest\",\"returnType\"],\"FunctionTypeParam\":[\"name\",\"typeAnnotation\"],\"GenericTypeAnnotation\":[\"id\",\"typeParameters\"],\"InferredPredicate\":[],\"InterfaceExtends\":[\"id\",\"typeParameters\"],\"InterfaceDeclaration\":[\"id\",\"typeParameters\",\"extends\",\"body\"],\"IntersectionTypeAnnotation\":[\"types\"],\"MixedTypeAnnotation\":[],\"EmptyTypeAnnotation\":[],\"NullableTypeAnnotation\":[\"typeAnnotation\"],\"NumberLiteralTypeAnnotation\":[],\"NumberTypeAnnotation\":[],\"ObjectTypeAnnotation\":[\"properties\",\"indexers\",\"callProperties\"],\"ObjectTypeCallProperty\":[\"value\"],\"ObjectTypeIndexer\":[\"id\",\"key\",\"value\"],\"ObjectTypeProperty\":[\"key\",\"value\"],\"ObjectTypeSpreadProperty\":[\"argument\"],\"OpaqueType\":[\"id\",\"typeParameters\",\"supertype\",\"impltype\"],\"QualifiedTypeIdentifier\":[\"id\",\"qualification\"],\"StringLiteralTypeAnnotation\":[],\"StringTypeAnnotation\":[],\"ThisTypeAnnotation\":[],\"TupleTypeAnnotation\":[\"types\"],\"TypeofTypeAnnotation\":[\"argument\"],\"TypeAlias\":[\"id\",\"typeParameters\",\"right\"],\"TypeAnnotation\":[\"typeAnnotation\"],\"TypeCastExpression\":[\"expression\",\"typeAnnotation\"],\"TypeParameter\":[\"bound\",\"default\"],\"TypeParameterDeclaration\":[\"params\"],\"TypeParameterInstantiation\":[\"params\"],\"UnionTypeAnnotation\":[\"types\"],\"VoidTypeAnnotation\":[],\"JSXAttribute\":[\"name\",\"value\"],\"JSXClosingElement\":[\"name\"],\"JSXElement\":[\"openingElement\",\"children\",\"closingElement\"],\"JSXEmptyExpression\":[],\"JSXExpressionContainer\":[\"expression\"],\"JSXSpreadChild\":[\"expression\"],\"JSXIdentifier\":[],\"JSXMemberExpression\":[\"object\",\"property\"],\"JSXNamespacedName\":[\"namespace\",\"name\"],\"JSXOpeningElement\":[\"name\",\"attributes\"],\"JSXSpreadAttribute\":[\"argument\"],\"JSXText\":[],\"JSXFragment\":[\"openingFragment\",\"children\",\"closingFragment\"],\"JSXOpeningFragment\":[],\"JSXClosingFragment\":[],\"Noop\":[],\"ParenthesizedExpression\":[\"expression\"],\"AwaitExpression\":[\"argument\"],\"BindExpression\":[\"object\",\"callee\"],\"ClassProperty\":[\"key\",\"value\",\"typeAnnotation\",\"decorators\"],\"Import\":[],\"Decorator\":[\"expression\"],\"DoExpression\":[\"body\"],\"ExportDefaultSpecifier\":[\"exported\"],\"ExportNamespaceSpecifier\":[\"exported\"],\"TSParameterProperty\":[\"parameter\"],\"TSDeclareFunction\":[\"id\",\"typeParameters\",\"params\",\"returnType\"],\"TSDeclareMethod\":[\"decorators\",\"key\",\"typeParameters\",\"params\",\"returnType\"],\"TSQualifiedName\":[\"left\",\"right\"],\"TSCallSignatureDeclaration\":[\"typeParameters\",\"parameters\",\"typeAnnotation\"],\"TSConstructSignatureDeclaration\":[\"typeParameters\",\"parameters\",\"typeAnnotation\"],\"TSPropertySignature\":[\"key\",\"typeAnnotation\",\"initializer\"],\"TSMethodSignature\":[\"key\",\"typeParameters\",\"parameters\",\"typeAnnotation\"],\"TSIndexSignature\":[\"parameters\",\"typeAnnotation\"],\"TSAnyKeyword\":[],\"TSNumberKeyword\":[],\"TSObjectKeyword\":[],\"TSBooleanKeyword\":[],\"TSStringKeyword\":[],\"TSSymbolKeyword\":[],\"TSVoidKeyword\":[],\"TSUndefinedKeyword\":[],\"TSNullKeyword\":[],\"TSNeverKeyword\":[],\"TSThisType\":[],\"TSFunctionType\":[\"typeParameters\",\"typeAnnotation\"],\"TSConstructorType\":[\"typeParameters\",\"typeAnnotation\"],\"TSTypeReference\":[\"typeName\",\"typeParameters\"],\"TSTypePredicate\":[\"parameterName\",\"typeAnnotation\"],\"TSTypeQuery\":[\"exprName\"],\"TSTypeLiteral\":[\"members\"],\"TSArrayType\":[\"elementType\"],\"TSTupleType\":[\"elementTypes\"],\"TSUnionType\":[\"types\"],\"TSIntersectionType\":[\"types\"],\"TSParenthesizedType\":[\"typeAnnotation\"],\"TSTypeOperator\":[\"typeAnnotation\"],\"TSIndexedAccessType\":[\"objectType\",\"indexType\"],\"TSMappedType\":[\"typeParameter\",\"typeAnnotation\"],\"TSLiteralType\":[\"literal\"],\"TSExpressionWithTypeArguments\":[\"expression\",\"typeParameters\"],\"TSInterfaceDeclaration\":[\"id\",\"typeParameters\",\"extends\",\"body\"],\"TSInterfaceBody\":[\"body\"],\"TSTypeAliasDeclaration\":[\"id\",\"typeParameters\",\"typeAnnotation\"],\"TSAsExpression\":[\"expression\",\"typeAnnotation\"],\"TSTypeAssertion\":[\"typeAnnotation\",\"expression\"],\"TSEnumDeclaration\":[\"id\",\"members\"],\"TSEnumMember\":[\"id\",\"initializer\"],\"TSModuleDeclaration\":[\"id\",\"body\"],\"TSModuleBlock\":[\"body\"],\"TSImportEqualsDeclaration\":[\"id\",\"moduleReference\"],\"TSExternalModuleReference\":[\"expression\"],\"TSNonNullExpression\":[\"expression\"],\"TSExportAssignment\":[\"expression\"],\"TSNamespaceExportDeclaration\":[\"id\"],\"TSTypeAnnotation\":[\"typeAnnotation\"],\"TSTypeParameterInstantiation\":[\"params\"],\"TSTypeParameterDeclaration\":[\"params\"],\"TSTypeParameter\":[\"constraint\",\"default\"]}",
     _powerAssertRecorder = function () { function PowerAssertRecorder() { this.captured = []; } PowerAssertRecorder.prototype._capt = function _capt(value, espath) { this.captured.push({ value: value, espath: espath }); return value; }; PowerAssertRecorder.prototype._expr = function _expr(value, source) { var capturedValues = this.captured; this.captured = []; return { powerAssertContext: { value: value, events: capturedValues }, source: source }; }; return PowerAssertRecorder; }(),
     _rec = new _powerAssertRecorder(),
     _rec2 = new _powerAssertRecorder(),
@@ -15,106 +15,97 @@ var _powerAssertVisitorKeys = '{"ArrayExpression":["elements"],"AssignmentExpres
     _rec11 = new _powerAssertRecorder(),
     _rec12 = new _powerAssertRecorder();
 
-assert(_rec._expr(_rec._capt(_rec._capt(foo, 'arguments/0/object').bar, 'arguments/0'), {
-  content: 'assert(foo.bar)',
-  filepath: 'test/fixtures/MemberExpression/fixture.js',
+assert(_rec._expr(_rec._capt(_rec._capt(foo, "arguments/0/object").bar, "arguments/0"), {
+  content: "assert(foo.bar)",
+  filepath: "test/fixtures/MemberExpression/fixture.js",
   line: 3,
-  ast: '{"type":"CallExpression","callee":{"type":"Identifier","name":"assert","range":[0,6]},"arguments":[{"type":"MemberExpression","object":{"type":"Identifier","name":"foo","range":[7,10]},"property":{"type":"Identifier","name":"bar","range":[11,14]},"computed":false,"range":[7,14]}],"range":[0,15]}',
-  tokens: '[{"type":{"label":"name"},"value":"assert","range":[0,6]},{"type":{"label":"("},"range":[6,7]},{"type":{"label":"name"},"value":"foo","range":[7,10]},{"type":{"label":"."},"range":[10,11]},{"type":{"label":"name"},"value":"bar","range":[11,14]},{"type":{"label":")"},"range":[14,15]}]',
+  ast: "{\"type\":\"CallExpression\",\"callee\":{\"type\":\"Identifier\",\"name\":\"assert\",\"range\":[0,6]},\"arguments\":[{\"type\":\"MemberExpression\",\"object\":{\"type\":\"Identifier\",\"name\":\"foo\",\"range\":[7,10]},\"property\":{\"type\":\"Identifier\",\"name\":\"bar\",\"range\":[11,14]},\"computed\":false,\"range\":[7,14]}],\"range\":[0,15]}",
+  tokens: "[{\"type\":{\"label\":\"name\"},\"value\":\"assert\",\"range\":[0,6]},{\"type\":{\"label\":\"(\"},\"range\":[6,7]},{\"type\":{\"label\":\"name\"},\"value\":\"foo\",\"range\":[7,10]},{\"type\":{\"label\":\".\"},\"range\":[10,11]},{\"type\":{\"label\":\"name\"},\"value\":\"bar\",\"range\":[11,14]},{\"type\":{\"label\":\")\"},\"range\":[14,15]}]",
   visitorKeys: _powerAssertVisitorKeys
 }));
-
-assert(_rec2._expr(_rec2._capt(_rec2._capt(_rec2._capt(foo, 'arguments/0/object/object').bar, 'arguments/0/object').baz, 'arguments/0'), {
-  content: 'assert(foo.bar.baz)',
-  filepath: 'test/fixtures/MemberExpression/fixture.js',
+assert(_rec2._expr(_rec2._capt(_rec2._capt(_rec2._capt(foo, "arguments/0/object/object").bar, "arguments/0/object").baz, "arguments/0"), {
+  content: "assert(foo.bar.baz)",
+  filepath: "test/fixtures/MemberExpression/fixture.js",
   line: 5,
-  ast: '{"type":"CallExpression","callee":{"type":"Identifier","name":"assert","range":[0,6]},"arguments":[{"type":"MemberExpression","object":{"type":"MemberExpression","object":{"type":"Identifier","name":"foo","range":[7,10]},"property":{"type":"Identifier","name":"bar","range":[11,14]},"computed":false,"range":[7,14]},"property":{"type":"Identifier","name":"baz","range":[15,18]},"computed":false,"range":[7,18]}],"range":[0,19]}',
-  tokens: '[{"type":{"label":"name"},"value":"assert","range":[0,6]},{"type":{"label":"("},"range":[6,7]},{"type":{"label":"name"},"value":"foo","range":[7,10]},{"type":{"label":"."},"range":[10,11]},{"type":{"label":"name"},"value":"bar","range":[11,14]},{"type":{"label":"."},"range":[14,15]},{"type":{"label":"name"},"value":"baz","range":[15,18]},{"type":{"label":")"},"range":[18,19]}]',
+  ast: "{\"type\":\"CallExpression\",\"callee\":{\"type\":\"Identifier\",\"name\":\"assert\",\"range\":[0,6]},\"arguments\":[{\"type\":\"MemberExpression\",\"object\":{\"type\":\"MemberExpression\",\"object\":{\"type\":\"Identifier\",\"name\":\"foo\",\"range\":[7,10]},\"property\":{\"type\":\"Identifier\",\"name\":\"bar\",\"range\":[11,14]},\"computed\":false,\"range\":[7,14]},\"property\":{\"type\":\"Identifier\",\"name\":\"baz\",\"range\":[15,18]},\"computed\":false,\"range\":[7,18]}],\"range\":[0,19]}",
+  tokens: "[{\"type\":{\"label\":\"name\"},\"value\":\"assert\",\"range\":[0,6]},{\"type\":{\"label\":\"(\"},\"range\":[6,7]},{\"type\":{\"label\":\"name\"},\"value\":\"foo\",\"range\":[7,10]},{\"type\":{\"label\":\".\"},\"range\":[10,11]},{\"type\":{\"label\":\"name\"},\"value\":\"bar\",\"range\":[11,14]},{\"type\":{\"label\":\".\"},\"range\":[14,15]},{\"type\":{\"label\":\"name\"},\"value\":\"baz\",\"range\":[15,18]},{\"type\":{\"label\":\")\"},\"range\":[18,19]}]",
   visitorKeys: _powerAssertVisitorKeys
 }));
-
-assert(_rec3._expr(_rec3._capt(_rec3._capt(foo, 'arguments/0/object')['bar'], 'arguments/0'), {
-  content: 'assert(foo[\'bar\'])',
-  filepath: 'test/fixtures/MemberExpression/fixture.js',
+assert(_rec3._expr(_rec3._capt(_rec3._capt(foo, "arguments/0/object")['bar'], "arguments/0"), {
+  content: "assert(foo['bar'])",
+  filepath: "test/fixtures/MemberExpression/fixture.js",
   line: 7,
-  ast: '{"type":"CallExpression","callee":{"type":"Identifier","name":"assert","range":[0,6]},"arguments":[{"type":"MemberExpression","object":{"type":"Identifier","name":"foo","range":[7,10]},"property":{"type":"StringLiteral","value":"bar","range":[11,16]},"computed":true,"range":[7,17]}],"range":[0,18]}',
-  tokens: '[{"type":{"label":"name"},"value":"assert","range":[0,6]},{"type":{"label":"("},"range":[6,7]},{"type":{"label":"name"},"value":"foo","range":[7,10]},{"type":{"label":"["},"range":[10,11]},{"type":{"label":"string"},"value":"bar","range":[11,16]},{"type":{"label":"]"},"range":[16,17]},{"type":{"label":")"},"range":[17,18]}]',
+  ast: "{\"type\":\"CallExpression\",\"callee\":{\"type\":\"Identifier\",\"name\":\"assert\",\"range\":[0,6]},\"arguments\":[{\"type\":\"MemberExpression\",\"object\":{\"type\":\"Identifier\",\"name\":\"foo\",\"range\":[7,10]},\"property\":{\"type\":\"StringLiteral\",\"value\":\"bar\",\"range\":[11,16]},\"computed\":true,\"range\":[7,17]}],\"range\":[0,18]}",
+  tokens: "[{\"type\":{\"label\":\"name\"},\"value\":\"assert\",\"range\":[0,6]},{\"type\":{\"label\":\"(\"},\"range\":[6,7]},{\"type\":{\"label\":\"name\"},\"value\":\"foo\",\"range\":[7,10]},{\"type\":{\"label\":\"[\"},\"range\":[10,11]},{\"type\":{\"label\":\"string\"},\"value\":\"bar\",\"range\":[11,16]},{\"type\":{\"label\":\"]\"},\"range\":[16,17]},{\"type\":{\"label\":\")\"},\"range\":[17,18]}]",
   visitorKeys: _powerAssertVisitorKeys
 }));
-
-assert(_rec4._expr(_rec4._capt(_rec4._capt(foo, 'arguments/0/object')[_rec4._capt(propName, 'arguments/0/property')], 'arguments/0'), {
-  content: 'assert(foo[propName])',
-  filepath: 'test/fixtures/MemberExpression/fixture.js',
+assert(_rec4._expr(_rec4._capt(_rec4._capt(foo, "arguments/0/object")[_rec4._capt(propName, "arguments/0/property")], "arguments/0"), {
+  content: "assert(foo[propName])",
+  filepath: "test/fixtures/MemberExpression/fixture.js",
   line: 9,
-  ast: '{"type":"CallExpression","callee":{"type":"Identifier","name":"assert","range":[0,6]},"arguments":[{"type":"MemberExpression","object":{"type":"Identifier","name":"foo","range":[7,10]},"property":{"type":"Identifier","name":"propName","range":[11,19]},"computed":true,"range":[7,20]}],"range":[0,21]}',
-  tokens: '[{"type":{"label":"name"},"value":"assert","range":[0,6]},{"type":{"label":"("},"range":[6,7]},{"type":{"label":"name"},"value":"foo","range":[7,10]},{"type":{"label":"["},"range":[10,11]},{"type":{"label":"name"},"value":"propName","range":[11,19]},{"type":{"label":"]"},"range":[19,20]},{"type":{"label":")"},"range":[20,21]}]',
+  ast: "{\"type\":\"CallExpression\",\"callee\":{\"type\":\"Identifier\",\"name\":\"assert\",\"range\":[0,6]},\"arguments\":[{\"type\":\"MemberExpression\",\"object\":{\"type\":\"Identifier\",\"name\":\"foo\",\"range\":[7,10]},\"property\":{\"type\":\"Identifier\",\"name\":\"propName\",\"range\":[11,19]},\"computed\":true,\"range\":[7,20]}],\"range\":[0,21]}",
+  tokens: "[{\"type\":{\"label\":\"name\"},\"value\":\"assert\",\"range\":[0,6]},{\"type\":{\"label\":\"(\"},\"range\":[6,7]},{\"type\":{\"label\":\"name\"},\"value\":\"foo\",\"range\":[7,10]},{\"type\":{\"label\":\"[\"},\"range\":[10,11]},{\"type\":{\"label\":\"name\"},\"value\":\"propName\",\"range\":[11,19]},{\"type\":{\"label\":\"]\"},\"range\":[19,20]},{\"type\":{\"label\":\")\"},\"range\":[20,21]}]",
   visitorKeys: _powerAssertVisitorKeys
 }));
-
-assert(_rec5._expr(_rec5._capt(_rec5._capt(foo, 'arguments/0/object')[_rec5._capt(propName, 'arguments/0/property')], 'arguments/0'), {
-  content: 'assert(foo[propName])',
-  filepath: 'test/fixtures/MemberExpression/fixture.js',
+assert(_rec5._expr(_rec5._capt(_rec5._capt(foo, "arguments/0/object")[_rec5._capt(propName, "arguments/0/property")], "arguments/0"), {
+  content: "assert(foo[propName])",
+  filepath: "test/fixtures/MemberExpression/fixture.js",
   line: 11,
-  ast: '{"type":"CallExpression","callee":{"type":"Identifier","name":"assert","range":[0,6]},"arguments":[{"type":"MemberExpression","object":{"type":"Identifier","name":"foo","range":[7,10]},"property":{"type":"Identifier","name":"propName","range":[11,19]},"computed":true,"range":[7,20]}],"range":[0,21]}',
-  tokens: '[{"type":{"label":"name"},"value":"assert","range":[0,6]},{"type":{"label":"("},"range":[6,7]},{"type":{"label":"name"},"value":"foo","range":[7,10]},{"type":{"label":"["},"range":[10,11]},{"type":{"label":"name"},"value":"propName","range":[11,19]},{"type":{"label":"]"},"range":[19,20]},{"type":{"label":")"},"range":[20,21]}]',
+  ast: "{\"type\":\"CallExpression\",\"callee\":{\"type\":\"Identifier\",\"name\":\"assert\",\"range\":[0,6]},\"arguments\":[{\"type\":\"MemberExpression\",\"object\":{\"type\":\"Identifier\",\"name\":\"foo\",\"range\":[7,10]},\"property\":{\"type\":\"Identifier\",\"name\":\"propName\",\"range\":[11,19]},\"computed\":true,\"range\":[7,20]}],\"range\":[0,21]}",
+  tokens: "[{\"type\":{\"label\":\"name\"},\"value\":\"assert\",\"range\":[0,6]},{\"type\":{\"label\":\"(\"},\"range\":[6,7]},{\"type\":{\"label\":\"name\"},\"value\":\"foo\",\"range\":[7,10]},{\"type\":{\"label\":\"[\"},\"range\":[10,11]},{\"type\":{\"label\":\"name\"},\"value\":\"propName\",\"range\":[11,19]},{\"type\":{\"label\":\"]\"},\"range\":[19,20]},{\"type\":{\"label\":\")\"},\"range\":[20,21]}]",
   visitorKeys: _powerAssertVisitorKeys
 }));
-
-assert(_rec6._expr(_rec6._capt(_rec6._capt(foo, 'arguments/0/object')[_rec6._capt(func(_rec6._capt(key, 'arguments/0/property/arguments/0')), 'arguments/0/property')], 'arguments/0'), {
-  content: 'assert(foo[func(key)])',
-  filepath: 'test/fixtures/MemberExpression/fixture.js',
+assert(_rec6._expr(_rec6._capt(_rec6._capt(foo, "arguments/0/object")[_rec6._capt(func(_rec6._capt(key, "arguments/0/property/arguments/0")), "arguments/0/property")], "arguments/0"), {
+  content: "assert(foo[func(key)])",
+  filepath: "test/fixtures/MemberExpression/fixture.js",
   line: 13,
-  ast: '{"type":"CallExpression","callee":{"type":"Identifier","name":"assert","range":[0,6]},"arguments":[{"type":"MemberExpression","object":{"type":"Identifier","name":"foo","range":[7,10]},"property":{"type":"CallExpression","callee":{"type":"Identifier","name":"func","range":[11,15]},"arguments":[{"type":"Identifier","name":"key","range":[16,19]}],"range":[11,20]},"computed":true,"range":[7,21]}],"range":[0,22]}',
-  tokens: '[{"type":{"label":"name"},"value":"assert","range":[0,6]},{"type":{"label":"("},"range":[6,7]},{"type":{"label":"name"},"value":"foo","range":[7,10]},{"type":{"label":"["},"range":[10,11]},{"type":{"label":"name"},"value":"func","range":[11,15]},{"type":{"label":"("},"range":[15,16]},{"type":{"label":"name"},"value":"key","range":[16,19]},{"type":{"label":")"},"range":[19,20]},{"type":{"label":"]"},"range":[20,21]},{"type":{"label":")"},"range":[21,22]}]',
+  ast: "{\"type\":\"CallExpression\",\"callee\":{\"type\":\"Identifier\",\"name\":\"assert\",\"range\":[0,6]},\"arguments\":[{\"type\":\"MemberExpression\",\"object\":{\"type\":\"Identifier\",\"name\":\"foo\",\"range\":[7,10]},\"property\":{\"type\":\"CallExpression\",\"callee\":{\"type\":\"Identifier\",\"name\":\"func\",\"range\":[11,15]},\"arguments\":[{\"type\":\"Identifier\",\"name\":\"key\",\"range\":[16,19]}],\"range\":[11,20]},\"computed\":true,\"range\":[7,21]}],\"range\":[0,22]}",
+  tokens: "[{\"type\":{\"label\":\"name\"},\"value\":\"assert\",\"range\":[0,6]},{\"type\":{\"label\":\"(\"},\"range\":[6,7]},{\"type\":{\"label\":\"name\"},\"value\":\"foo\",\"range\":[7,10]},{\"type\":{\"label\":\"[\"},\"range\":[10,11]},{\"type\":{\"label\":\"name\"},\"value\":\"func\",\"range\":[11,15]},{\"type\":{\"label\":\"(\"},\"range\":[15,16]},{\"type\":{\"label\":\"name\"},\"value\":\"key\",\"range\":[16,19]},{\"type\":{\"label\":\")\"},\"range\":[19,20]},{\"type\":{\"label\":\"]\"},\"range\":[20,21]},{\"type\":{\"label\":\")\"},\"range\":[21,22]}]",
   visitorKeys: _powerAssertVisitorKeys
 }));
-
-assert(_rec7._expr(_rec7._capt(_rec7._capt(_rec7._capt(_rec7._capt(foo, 'arguments/0/object/object/object')[_rec7._capt(propName, 'arguments/0/object/object/property')], 'arguments/0/object/object')['key'], 'arguments/0/object')[_rec7._capt(_rec7._capt(keys(), 'arguments/0/property/object')['name'], 'arguments/0/property')], 'arguments/0'), {
-  content: 'assert(foo[propName][\'key\'][keys()[\'name\']])',
-  filepath: 'test/fixtures/MemberExpression/fixture.js',
+assert(_rec7._expr(_rec7._capt(_rec7._capt(_rec7._capt(_rec7._capt(foo, "arguments/0/object/object/object")[_rec7._capt(propName, "arguments/0/object/object/property")], "arguments/0/object/object")['key'], "arguments/0/object")[_rec7._capt(_rec7._capt(keys(), "arguments/0/property/object")['name'], "arguments/0/property")], "arguments/0"), {
+  content: "assert(foo[propName]['key'][keys()['name']])",
+  filepath: "test/fixtures/MemberExpression/fixture.js",
   line: 15,
-  ast: '{"type":"CallExpression","callee":{"type":"Identifier","name":"assert","range":[0,6]},"arguments":[{"type":"MemberExpression","object":{"type":"MemberExpression","object":{"type":"MemberExpression","object":{"type":"Identifier","name":"foo","range":[7,10]},"property":{"type":"Identifier","name":"propName","range":[11,19]},"computed":true,"range":[7,20]},"property":{"type":"StringLiteral","value":"key","range":[21,26]},"computed":true,"range":[7,27]},"property":{"type":"MemberExpression","object":{"type":"CallExpression","callee":{"type":"Identifier","name":"keys","range":[28,32]},"arguments":[],"range":[28,34]},"property":{"type":"StringLiteral","value":"name","range":[35,41]},"computed":true,"range":[28,42]},"computed":true,"range":[7,43]}],"range":[0,44]}',
-  tokens: '[{"type":{"label":"name"},"value":"assert","range":[0,6]},{"type":{"label":"("},"range":[6,7]},{"type":{"label":"name"},"value":"foo","range":[7,10]},{"type":{"label":"["},"range":[10,11]},{"type":{"label":"name"},"value":"propName","range":[11,19]},{"type":{"label":"]"},"range":[19,20]},{"type":{"label":"["},"range":[20,21]},{"type":{"label":"string"},"value":"key","range":[21,26]},{"type":{"label":"]"},"range":[26,27]},{"type":{"label":"["},"range":[27,28]},{"type":{"label":"name"},"value":"keys","range":[28,32]},{"type":{"label":"("},"range":[32,33]},{"type":{"label":")"},"range":[33,34]},{"type":{"label":"["},"range":[34,35]},{"type":{"label":"string"},"value":"name","range":[35,41]},{"type":{"label":"]"},"range":[41,42]},{"type":{"label":"]"},"range":[42,43]},{"type":{"label":")"},"range":[43,44]}]',
+  ast: "{\"type\":\"CallExpression\",\"callee\":{\"type\":\"Identifier\",\"name\":\"assert\",\"range\":[0,6]},\"arguments\":[{\"type\":\"MemberExpression\",\"object\":{\"type\":\"MemberExpression\",\"object\":{\"type\":\"MemberExpression\",\"object\":{\"type\":\"Identifier\",\"name\":\"foo\",\"range\":[7,10]},\"property\":{\"type\":\"Identifier\",\"name\":\"propName\",\"range\":[11,19]},\"computed\":true,\"range\":[7,20]},\"property\":{\"type\":\"StringLiteral\",\"value\":\"key\",\"range\":[21,26]},\"computed\":true,\"range\":[7,27]},\"property\":{\"type\":\"MemberExpression\",\"object\":{\"type\":\"CallExpression\",\"callee\":{\"type\":\"Identifier\",\"name\":\"keys\",\"range\":[28,32]},\"arguments\":[],\"range\":[28,34]},\"property\":{\"type\":\"StringLiteral\",\"value\":\"name\",\"range\":[35,41]},\"computed\":true,\"range\":[28,42]},\"computed\":true,\"range\":[7,43]}],\"range\":[0,44]}",
+  tokens: "[{\"type\":{\"label\":\"name\"},\"value\":\"assert\",\"range\":[0,6]},{\"type\":{\"label\":\"(\"},\"range\":[6,7]},{\"type\":{\"label\":\"name\"},\"value\":\"foo\",\"range\":[7,10]},{\"type\":{\"label\":\"[\"},\"range\":[10,11]},{\"type\":{\"label\":\"name\"},\"value\":\"propName\",\"range\":[11,19]},{\"type\":{\"label\":\"]\"},\"range\":[19,20]},{\"type\":{\"label\":\"[\"},\"range\":[20,21]},{\"type\":{\"label\":\"string\"},\"value\":\"key\",\"range\":[21,26]},{\"type\":{\"label\":\"]\"},\"range\":[26,27]},{\"type\":{\"label\":\"[\"},\"range\":[27,28]},{\"type\":{\"label\":\"name\"},\"value\":\"keys\",\"range\":[28,32]},{\"type\":{\"label\":\"(\"},\"range\":[32,33]},{\"type\":{\"label\":\")\"},\"range\":[33,34]},{\"type\":{\"label\":\"[\"},\"range\":[34,35]},{\"type\":{\"label\":\"string\"},\"value\":\"name\",\"range\":[35,41]},{\"type\":{\"label\":\"]\"},\"range\":[41,42]},{\"type\":{\"label\":\"]\"},\"range\":[42,43]},{\"type\":{\"label\":\")\"},\"range\":[43,44]}]",
   visitorKeys: _powerAssertVisitorKeys
 }));
-
-assert(_rec8._expr(_rec8._capt(_rec8._capt(_rec8._capt(_rec8._capt(foo, 'arguments/0/object/object/object')[_rec8._capt(propName, 'arguments/0/object/object/property')], 'arguments/0/object/object')['key'], 'arguments/0/object')[_rec8._capt(_rec8._capt(keys(), 'arguments/0/property/object')['name'], 'arguments/0/property')], 'arguments/0'), {
-  content: 'assert(foo[propName][\'key\'][keys()[\'name\']])',
-  filepath: 'test/fixtures/MemberExpression/fixture.js',
+assert(_rec8._expr(_rec8._capt(_rec8._capt(_rec8._capt(_rec8._capt(foo, "arguments/0/object/object/object")[_rec8._capt(propName, "arguments/0/object/object/property")], "arguments/0/object/object")['key'], "arguments/0/object")[_rec8._capt(_rec8._capt(keys(), "arguments/0/property/object")['name'], "arguments/0/property")], "arguments/0"), {
+  content: "assert(foo[propName]['key'][keys()['name']])",
+  filepath: "test/fixtures/MemberExpression/fixture.js",
   line: 17,
-  ast: '{"type":"CallExpression","callee":{"type":"Identifier","name":"assert","range":[0,6]},"arguments":[{"type":"MemberExpression","object":{"type":"MemberExpression","object":{"type":"MemberExpression","object":{"type":"Identifier","name":"foo","range":[7,10]},"property":{"type":"Identifier","name":"propName","range":[11,19]},"computed":true,"range":[7,20]},"property":{"type":"StringLiteral","value":"key","range":[21,26]},"computed":true,"range":[7,27]},"property":{"type":"MemberExpression","object":{"type":"CallExpression","callee":{"type":"Identifier","name":"keys","range":[28,32]},"arguments":[],"range":[28,34]},"property":{"type":"StringLiteral","value":"name","range":[35,41]},"computed":true,"range":[28,42]},"computed":true,"range":[7,43]}],"range":[0,44]}',
-  tokens: '[{"type":{"label":"name"},"value":"assert","range":[0,6]},{"type":{"label":"("},"range":[6,7]},{"type":{"label":"name"},"value":"foo","range":[7,10]},{"type":{"label":"["},"range":[10,11]},{"type":{"label":"name"},"value":"propName","range":[11,19]},{"type":{"label":"]"},"range":[19,20]},{"type":{"label":"["},"range":[20,21]},{"type":{"label":"string"},"value":"key","range":[21,26]},{"type":{"label":"]"},"range":[26,27]},{"type":{"label":"["},"range":[27,28]},{"type":{"label":"name"},"value":"keys","range":[28,32]},{"type":{"label":"("},"range":[32,33]},{"type":{"label":")"},"range":[33,34]},{"type":{"label":"["},"range":[34,35]},{"type":{"label":"string"},"value":"name","range":[35,41]},{"type":{"label":"]"},"range":[41,42]},{"type":{"label":"]"},"range":[42,43]},{"type":{"label":")"},"range":[43,44]}]',
+  ast: "{\"type\":\"CallExpression\",\"callee\":{\"type\":\"Identifier\",\"name\":\"assert\",\"range\":[0,6]},\"arguments\":[{\"type\":\"MemberExpression\",\"object\":{\"type\":\"MemberExpression\",\"object\":{\"type\":\"MemberExpression\",\"object\":{\"type\":\"Identifier\",\"name\":\"foo\",\"range\":[7,10]},\"property\":{\"type\":\"Identifier\",\"name\":\"propName\",\"range\":[11,19]},\"computed\":true,\"range\":[7,20]},\"property\":{\"type\":\"StringLiteral\",\"value\":\"key\",\"range\":[21,26]},\"computed\":true,\"range\":[7,27]},\"property\":{\"type\":\"MemberExpression\",\"object\":{\"type\":\"CallExpression\",\"callee\":{\"type\":\"Identifier\",\"name\":\"keys\",\"range\":[28,32]},\"arguments\":[],\"range\":[28,34]},\"property\":{\"type\":\"StringLiteral\",\"value\":\"name\",\"range\":[35,41]},\"computed\":true,\"range\":[28,42]},\"computed\":true,\"range\":[7,43]}],\"range\":[0,44]}",
+  tokens: "[{\"type\":{\"label\":\"name\"},\"value\":\"assert\",\"range\":[0,6]},{\"type\":{\"label\":\"(\"},\"range\":[6,7]},{\"type\":{\"label\":\"name\"},\"value\":\"foo\",\"range\":[7,10]},{\"type\":{\"label\":\"[\"},\"range\":[10,11]},{\"type\":{\"label\":\"name\"},\"value\":\"propName\",\"range\":[11,19]},{\"type\":{\"label\":\"]\"},\"range\":[19,20]},{\"type\":{\"label\":\"[\"},\"range\":[20,21]},{\"type\":{\"label\":\"string\"},\"value\":\"key\",\"range\":[21,26]},{\"type\":{\"label\":\"]\"},\"range\":[26,27]},{\"type\":{\"label\":\"[\"},\"range\":[27,28]},{\"type\":{\"label\":\"name\"},\"value\":\"keys\",\"range\":[28,32]},{\"type\":{\"label\":\"(\"},\"range\":[32,33]},{\"type\":{\"label\":\")\"},\"range\":[33,34]},{\"type\":{\"label\":\"[\"},\"range\":[34,35]},{\"type\":{\"label\":\"string\"},\"value\":\"name\",\"range\":[35,41]},{\"type\":{\"label\":\"]\"},\"range\":[41,42]},{\"type\":{\"label\":\"]\"},\"range\":[42,43]},{\"type\":{\"label\":\")\"},\"range\":[43,44]}]",
   visitorKeys: _powerAssertVisitorKeys
 }));
-
-assert.equal(_rec9._expr(_rec9._capt(_rec9._capt(ary1, 'arguments/0/object').length, 'arguments/0'), {
-  content: 'assert.equal(ary1.length, ary2.length)',
-  filepath: 'test/fixtures/MemberExpression/fixture.js',
+assert.equal(_rec9._expr(_rec9._capt(_rec9._capt(ary1, "arguments/0/object").length, "arguments/0"), {
+  content: "assert.equal(ary1.length, ary2.length)",
+  filepath: "test/fixtures/MemberExpression/fixture.js",
   line: 19,
-  ast: '{"type":"CallExpression","callee":{"type":"MemberExpression","object":{"type":"Identifier","name":"assert","range":[0,6]},"property":{"type":"Identifier","name":"equal","range":[7,12]},"computed":false,"range":[0,12]},"arguments":[{"type":"MemberExpression","object":{"type":"Identifier","name":"ary1","range":[13,17]},"property":{"type":"Identifier","name":"length","range":[18,24]},"computed":false,"range":[13,24]},{"type":"MemberExpression","object":{"type":"Identifier","name":"ary2","range":[26,30]},"property":{"type":"Identifier","name":"length","range":[31,37]},"computed":false,"range":[26,37]}],"range":[0,38]}',
-  tokens: '[{"type":{"label":"name"},"value":"assert","range":[0,6]},{"type":{"label":"."},"range":[6,7]},{"type":{"label":"name"},"value":"equal","range":[7,12]},{"type":{"label":"("},"range":[12,13]},{"type":{"label":"name"},"value":"ary1","range":[13,17]},{"type":{"label":"."},"range":[17,18]},{"type":{"label":"name"},"value":"length","range":[18,24]},{"type":{"label":","},"range":[24,25]},{"type":{"label":"name"},"value":"ary2","range":[26,30]},{"type":{"label":"."},"range":[30,31]},{"type":{"label":"name"},"value":"length","range":[31,37]},{"type":{"label":")"},"range":[37,38]}]',
+  ast: "{\"type\":\"CallExpression\",\"callee\":{\"type\":\"MemberExpression\",\"object\":{\"type\":\"Identifier\",\"name\":\"assert\",\"range\":[0,6]},\"property\":{\"type\":\"Identifier\",\"name\":\"equal\",\"range\":[7,12]},\"computed\":false,\"range\":[0,12]},\"arguments\":[{\"type\":\"MemberExpression\",\"object\":{\"type\":\"Identifier\",\"name\":\"ary1\",\"range\":[13,17]},\"property\":{\"type\":\"Identifier\",\"name\":\"length\",\"range\":[18,24]},\"computed\":false,\"range\":[13,24]},{\"type\":\"MemberExpression\",\"object\":{\"type\":\"Identifier\",\"name\":\"ary2\",\"range\":[26,30]},\"property\":{\"type\":\"Identifier\",\"name\":\"length\",\"range\":[31,37]},\"computed\":false,\"range\":[26,37]}],\"range\":[0,38]}",
+  tokens: "[{\"type\":{\"label\":\"name\"},\"value\":\"assert\",\"range\":[0,6]},{\"type\":{\"label\":\".\"},\"range\":[6,7]},{\"type\":{\"label\":\"name\"},\"value\":\"equal\",\"range\":[7,12]},{\"type\":{\"label\":\"(\"},\"range\":[12,13]},{\"type\":{\"label\":\"name\"},\"value\":\"ary1\",\"range\":[13,17]},{\"type\":{\"label\":\".\"},\"range\":[17,18]},{\"type\":{\"label\":\"name\"},\"value\":\"length\",\"range\":[18,24]},{\"type\":{\"label\":\",\"},\"range\":[24,25]},{\"type\":{\"label\":\"name\"},\"value\":\"ary2\",\"range\":[26,30]},{\"type\":{\"label\":\".\"},\"range\":[30,31]},{\"type\":{\"label\":\"name\"},\"value\":\"length\",\"range\":[31,37]},{\"type\":{\"label\":\")\"},\"range\":[37,38]}]",
   visitorKeys: _powerAssertVisitorKeys
-}), _rec10._expr(_rec10._capt(_rec10._capt(ary2, 'arguments/1/object').length, 'arguments/1'), {
-  content: 'assert.equal(ary1.length, ary2.length)',
-  filepath: 'test/fixtures/MemberExpression/fixture.js',
+}), _rec10._expr(_rec10._capt(_rec10._capt(ary2, "arguments/1/object").length, "arguments/1"), {
+  content: "assert.equal(ary1.length, ary2.length)",
+  filepath: "test/fixtures/MemberExpression/fixture.js",
   line: 19,
-  ast: '{"type":"CallExpression","callee":{"type":"MemberExpression","object":{"type":"Identifier","name":"assert","range":[0,6]},"property":{"type":"Identifier","name":"equal","range":[7,12]},"computed":false,"range":[0,12]},"arguments":[{"type":"MemberExpression","object":{"type":"Identifier","name":"ary1","range":[13,17]},"property":{"type":"Identifier","name":"length","range":[18,24]},"computed":false,"range":[13,24]},{"type":"MemberExpression","object":{"type":"Identifier","name":"ary2","range":[26,30]},"property":{"type":"Identifier","name":"length","range":[31,37]},"computed":false,"range":[26,37]}],"range":[0,38]}',
-  tokens: '[{"type":{"label":"name"},"value":"assert","range":[0,6]},{"type":{"label":"."},"range":[6,7]},{"type":{"label":"name"},"value":"equal","range":[7,12]},{"type":{"label":"("},"range":[12,13]},{"type":{"label":"name"},"value":"ary1","range":[13,17]},{"type":{"label":"."},"range":[17,18]},{"type":{"label":"name"},"value":"length","range":[18,24]},{"type":{"label":","},"range":[24,25]},{"type":{"label":"name"},"value":"ary2","range":[26,30]},{"type":{"label":"."},"range":[30,31]},{"type":{"label":"name"},"value":"length","range":[31,37]},{"type":{"label":")"},"range":[37,38]}]',
+  ast: "{\"type\":\"CallExpression\",\"callee\":{\"type\":\"MemberExpression\",\"object\":{\"type\":\"Identifier\",\"name\":\"assert\",\"range\":[0,6]},\"property\":{\"type\":\"Identifier\",\"name\":\"equal\",\"range\":[7,12]},\"computed\":false,\"range\":[0,12]},\"arguments\":[{\"type\":\"MemberExpression\",\"object\":{\"type\":\"Identifier\",\"name\":\"ary1\",\"range\":[13,17]},\"property\":{\"type\":\"Identifier\",\"name\":\"length\",\"range\":[18,24]},\"computed\":false,\"range\":[13,24]},{\"type\":\"MemberExpression\",\"object\":{\"type\":\"Identifier\",\"name\":\"ary2\",\"range\":[26,30]},\"property\":{\"type\":\"Identifier\",\"name\":\"length\",\"range\":[31,37]},\"computed\":false,\"range\":[26,37]}],\"range\":[0,38]}",
+  tokens: "[{\"type\":{\"label\":\"name\"},\"value\":\"assert\",\"range\":[0,6]},{\"type\":{\"label\":\".\"},\"range\":[6,7]},{\"type\":{\"label\":\"name\"},\"value\":\"equal\",\"range\":[7,12]},{\"type\":{\"label\":\"(\"},\"range\":[12,13]},{\"type\":{\"label\":\"name\"},\"value\":\"ary1\",\"range\":[13,17]},{\"type\":{\"label\":\".\"},\"range\":[17,18]},{\"type\":{\"label\":\"name\"},\"value\":\"length\",\"range\":[18,24]},{\"type\":{\"label\":\",\"},\"range\":[24,25]},{\"type\":{\"label\":\"name\"},\"value\":\"ary2\",\"range\":[26,30]},{\"type\":{\"label\":\".\"},\"range\":[30,31]},{\"type\":{\"label\":\"name\"},\"value\":\"length\",\"range\":[31,37]},{\"type\":{\"label\":\")\"},\"range\":[37,38]}]",
   visitorKeys: _powerAssertVisitorKeys
 }));
-
-assert.deepEqual(_rec11._expr(_rec11._capt(_rec11._capt(foo, 'arguments/0/object').propName, 'arguments/0'), {
-  content: 'assert.deepEqual(foo.propName, foo[key])',
-  filepath: 'test/fixtures/MemberExpression/fixture.js',
+assert.deepEqual(_rec11._expr(_rec11._capt(_rec11._capt(foo, "arguments/0/object").propName, "arguments/0"), {
+  content: "assert.deepEqual(foo.propName, foo[key])",
+  filepath: "test/fixtures/MemberExpression/fixture.js",
   line: 21,
-  ast: '{"type":"CallExpression","callee":{"type":"MemberExpression","object":{"type":"Identifier","name":"assert","range":[0,6]},"property":{"type":"Identifier","name":"deepEqual","range":[7,16]},"computed":false,"range":[0,16]},"arguments":[{"type":"MemberExpression","object":{"type":"Identifier","name":"foo","range":[17,20]},"property":{"type":"Identifier","name":"propName","range":[21,29]},"computed":false,"range":[17,29]},{"type":"MemberExpression","object":{"type":"Identifier","name":"foo","range":[31,34]},"property":{"type":"Identifier","name":"key","range":[35,38]},"computed":true,"range":[31,39]}],"range":[0,40]}',
-  tokens: '[{"type":{"label":"name"},"value":"assert","range":[0,6]},{"type":{"label":"."},"range":[6,7]},{"type":{"label":"name"},"value":"deepEqual","range":[7,16]},{"type":{"label":"("},"range":[16,17]},{"type":{"label":"name"},"value":"foo","range":[17,20]},{"type":{"label":"."},"range":[20,21]},{"type":{"label":"name"},"value":"propName","range":[21,29]},{"type":{"label":","},"range":[29,30]},{"type":{"label":"name"},"value":"foo","range":[31,34]},{"type":{"label":"["},"range":[34,35]},{"type":{"label":"name"},"value":"key","range":[35,38]},{"type":{"label":"]"},"range":[38,39]},{"type":{"label":")"},"range":[39,40]}]',
+  ast: "{\"type\":\"CallExpression\",\"callee\":{\"type\":\"MemberExpression\",\"object\":{\"type\":\"Identifier\",\"name\":\"assert\",\"range\":[0,6]},\"property\":{\"type\":\"Identifier\",\"name\":\"deepEqual\",\"range\":[7,16]},\"computed\":false,\"range\":[0,16]},\"arguments\":[{\"type\":\"MemberExpression\",\"object\":{\"type\":\"Identifier\",\"name\":\"foo\",\"range\":[17,20]},\"property\":{\"type\":\"Identifier\",\"name\":\"propName\",\"range\":[21,29]},\"computed\":false,\"range\":[17,29]},{\"type\":\"MemberExpression\",\"object\":{\"type\":\"Identifier\",\"name\":\"foo\",\"range\":[31,34]},\"property\":{\"type\":\"Identifier\",\"name\":\"key\",\"range\":[35,38]},\"computed\":true,\"range\":[31,39]}],\"range\":[0,40]}",
+  tokens: "[{\"type\":{\"label\":\"name\"},\"value\":\"assert\",\"range\":[0,6]},{\"type\":{\"label\":\".\"},\"range\":[6,7]},{\"type\":{\"label\":\"name\"},\"value\":\"deepEqual\",\"range\":[7,16]},{\"type\":{\"label\":\"(\"},\"range\":[16,17]},{\"type\":{\"label\":\"name\"},\"value\":\"foo\",\"range\":[17,20]},{\"type\":{\"label\":\".\"},\"range\":[20,21]},{\"type\":{\"label\":\"name\"},\"value\":\"propName\",\"range\":[21,29]},{\"type\":{\"label\":\",\"},\"range\":[29,30]},{\"type\":{\"label\":\"name\"},\"value\":\"foo\",\"range\":[31,34]},{\"type\":{\"label\":\"[\"},\"range\":[34,35]},{\"type\":{\"label\":\"name\"},\"value\":\"key\",\"range\":[35,38]},{\"type\":{\"label\":\"]\"},\"range\":[38,39]},{\"type\":{\"label\":\")\"},\"range\":[39,40]}]",
   visitorKeys: _powerAssertVisitorKeys
-}), _rec12._expr(_rec12._capt(_rec12._capt(foo, 'arguments/1/object')[_rec12._capt(key, 'arguments/1/property')], 'arguments/1'), {
-  content: 'assert.deepEqual(foo.propName, foo[key])',
-  filepath: 'test/fixtures/MemberExpression/fixture.js',
+}), _rec12._expr(_rec12._capt(_rec12._capt(foo, "arguments/1/object")[_rec12._capt(key, "arguments/1/property")], "arguments/1"), {
+  content: "assert.deepEqual(foo.propName, foo[key])",
+  filepath: "test/fixtures/MemberExpression/fixture.js",
   line: 21,
-  ast: '{"type":"CallExpression","callee":{"type":"MemberExpression","object":{"type":"Identifier","name":"assert","range":[0,6]},"property":{"type":"Identifier","name":"deepEqual","range":[7,16]},"computed":false,"range":[0,16]},"arguments":[{"type":"MemberExpression","object":{"type":"Identifier","name":"foo","range":[17,20]},"property":{"type":"Identifier","name":"propName","range":[21,29]},"computed":false,"range":[17,29]},{"type":"MemberExpression","object":{"type":"Identifier","name":"foo","range":[31,34]},"property":{"type":"Identifier","name":"key","range":[35,38]},"computed":true,"range":[31,39]}],"range":[0,40]}',
-  tokens: '[{"type":{"label":"name"},"value":"assert","range":[0,6]},{"type":{"label":"."},"range":[6,7]},{"type":{"label":"name"},"value":"deepEqual","range":[7,16]},{"type":{"label":"("},"range":[16,17]},{"type":{"label":"name"},"value":"foo","range":[17,20]},{"type":{"label":"."},"range":[20,21]},{"type":{"label":"name"},"value":"propName","range":[21,29]},{"type":{"label":","},"range":[29,30]},{"type":{"label":"name"},"value":"foo","range":[31,34]},{"type":{"label":"["},"range":[34,35]},{"type":{"label":"name"},"value":"key","range":[35,38]},{"type":{"label":"]"},"range":[38,39]},{"type":{"label":")"},"range":[39,40]}]',
+  ast: "{\"type\":\"CallExpression\",\"callee\":{\"type\":\"MemberExpression\",\"object\":{\"type\":\"Identifier\",\"name\":\"assert\",\"range\":[0,6]},\"property\":{\"type\":\"Identifier\",\"name\":\"deepEqual\",\"range\":[7,16]},\"computed\":false,\"range\":[0,16]},\"arguments\":[{\"type\":\"MemberExpression\",\"object\":{\"type\":\"Identifier\",\"name\":\"foo\",\"range\":[17,20]},\"property\":{\"type\":\"Identifier\",\"name\":\"propName\",\"range\":[21,29]},\"computed\":false,\"range\":[17,29]},{\"type\":\"MemberExpression\",\"object\":{\"type\":\"Identifier\",\"name\":\"foo\",\"range\":[31,34]},\"property\":{\"type\":\"Identifier\",\"name\":\"key\",\"range\":[35,38]},\"computed\":true,\"range\":[31,39]}],\"range\":[0,40]}",
+  tokens: "[{\"type\":{\"label\":\"name\"},\"value\":\"assert\",\"range\":[0,6]},{\"type\":{\"label\":\".\"},\"range\":[6,7]},{\"type\":{\"label\":\"name\"},\"value\":\"deepEqual\",\"range\":[7,16]},{\"type\":{\"label\":\"(\"},\"range\":[16,17]},{\"type\":{\"label\":\"name\"},\"value\":\"foo\",\"range\":[17,20]},{\"type\":{\"label\":\".\"},\"range\":[20,21]},{\"type\":{\"label\":\"name\"},\"value\":\"propName\",\"range\":[21,29]},{\"type\":{\"label\":\",\"},\"range\":[29,30]},{\"type\":{\"label\":\"name\"},\"value\":\"foo\",\"range\":[31,34]},{\"type\":{\"label\":\"[\"},\"range\":[34,35]},{\"type\":{\"label\":\"name\"},\"value\":\"key\",\"range\":[35,38]},{\"type\":{\"label\":\"]\"},\"range\":[38,39]},{\"type\":{\"label\":\")\"},\"range\":[39,40]}]",
   visitorKeys: _powerAssertVisitorKeys
 }));
diff --git a/test/fixtures/MemberExpression/expected.js b/test/fixtures/MemberExpression/expected.js
index e7e1405..575ab70 100644
--- a/test/fixtures/MemberExpression/expected.js
+++ b/test/fixtures/MemberExpression/expected.js
@@ -14,70 +14,61 @@ var _powerAssertRecorder = function () { function PowerAssertRecorder() { this.c
     _rec11 = new _powerAssertRecorder(),
     _rec12 = new _powerAssertRecorder();
 
-assert(_rec._expr(_rec._capt(_rec._capt(foo, 'arguments/0/object').bar, 'arguments/0'), {
-  content: 'assert(foo.bar)',
-  filepath: 'test/fixtures/MemberExpression/fixture.js',
+assert(_rec._expr(_rec._capt(_rec._capt(foo, "arguments/0/object").bar, "arguments/0"), {
+  content: "assert(foo.bar)",
+  filepath: "test/fixtures/MemberExpression/fixture.js",
   line: 3
 }));
-
-assert(_rec2._expr(_rec2._capt(_rec2._capt(_rec2._capt(foo, 'arguments/0/object/object').bar, 'arguments/0/object').baz, 'arguments/0'), {
-  content: 'assert(foo.bar.baz)',
-  filepath: 'test/fixtures/MemberExpression/fixture.js',
+assert(_rec2._expr(_rec2._capt(_rec2._capt(_rec2._capt(foo, "arguments/0/object/object").bar, "arguments/0/object").baz, "arguments/0"), {
+  content: "assert(foo.bar.baz)",
+  filepath: "test/fixtures/MemberExpression/fixture.js",
   line: 5
 }));
-
-assert(_rec3._expr(_rec3._capt(_rec3._capt(foo, 'arguments/0/object')['bar'], 'arguments/0'), {
-  content: 'assert(foo[\'bar\'])',
-  filepath: 'test/fixtures/MemberExpression/fixture.js',
+assert(_rec3._expr(_rec3._capt(_rec3._capt(foo, "arguments/0/object")['bar'], "arguments/0"), {
+  content: "assert(foo['bar'])",
+  filepath: "test/fixtures/MemberExpression/fixture.js",
   line: 7
 }));
-
-assert(_rec4._expr(_rec4._capt(_rec4._capt(foo, 'arguments/0/object')[_rec4._capt(propName, 'arguments/0/property')], 'arguments/0'), {
-  content: 'assert(foo[propName])',
-  filepath: 'test/fixtures/MemberExpression/fixture.js',
+assert(_rec4._expr(_rec4._capt(_rec4._capt(foo, "arguments/0/object")[_rec4._capt(propName, "arguments/0/property")], "arguments/0"), {
+  content: "assert(foo[propName])",
+  filepath: "test/fixtures/MemberExpression/fixture.js",
   line: 9
 }));
-
-assert(_rec5._expr(_rec5._capt(_rec5._capt(foo, 'arguments/0/object')[_rec5._capt(propName, 'arguments/0/property')], 'arguments/0'), {
-  content: 'assert(foo[propName])',
-  filepath: 'test/fixtures/MemberExpression/fixture.js',
+assert(_rec5._expr(_rec5._capt(_rec5._capt(foo, "arguments/0/object")[_rec5._capt(propName, "arguments/0/property")], "arguments/0"), {
+  content: "assert(foo[propName])",
+  filepath: "test/fixtures/MemberExpression/fixture.js",
   line: 11
 }));
-
-assert(_rec6._expr(_rec6._capt(_rec6._capt(foo, 'arguments/0/object')[_rec6._capt(func(_rec6._capt(key, 'arguments/0/property/arguments/0')), 'arguments/0/property')], 'arguments/0'), {
-  content: 'assert(foo[func(key)])',
-  filepath: 'test/fixtures/MemberExpression/fixture.js',
+assert(_rec6._expr(_rec6._capt(_rec6._capt(foo, "arguments/0/object")[_rec6._capt(func(_rec6._capt(key, "arguments/0/property/arguments/0")), "arguments/0/property")], "arguments/0"), {
+  content: "assert(foo[func(key)])",
+  filepath: "test/fixtures/MemberExpression/fixture.js",
   line: 13
 }));
-
-assert(_rec7._expr(_rec7._capt(_rec7._capt(_rec7._capt(_rec7._capt(foo, 'arguments/0/object/object/object')[_rec7._capt(propName, 'arguments/0/object/object/property')], 'arguments/0/object/object')['key'], 'arguments/0/object')[_rec7._capt(_rec7._capt(keys(), 'arguments/0/property/object')['name'], 'arguments/0/property')], 'arguments/0'), {
-  content: 'assert(foo[propName][\'key\'][keys()[\'name\']])',
-  filepath: 'test/fixtures/MemberExpression/fixture.js',
+assert(_rec7._expr(_rec7._capt(_rec7._capt(_rec7._capt(_rec7._capt(foo, "arguments/0/object/object/object")[_rec7._capt(propName, "arguments/0/object/object/property")], "arguments/0/object/object")['key'], "arguments/0/object")[_rec7._capt(_rec7._capt(keys(), "arguments/0/property/object")['name'], "arguments/0/property")], "arguments/0"), {
+  content: "assert(foo[propName]['key'][keys()['name']])",
+  filepath: "test/fixtures/MemberExpression/fixture.js",
   line: 15
 }));
-
-assert(_rec8._expr(_rec8._capt(_rec8._capt(_rec8._capt(_rec8._capt(foo, 'arguments/0/object/object/object')[_rec8._capt(propName, 'arguments/0/object/object/property')], 'arguments/0/object/object')['key'], 'arguments/0/object')[_rec8._capt(_rec8._capt(keys(), 'arguments/0/property/object')['name'], 'arguments/0/property')], 'arguments/0'), {
-  content: 'assert(foo[propName][\'key\'][keys()[\'name\']])',
-  filepath: 'test/fixtures/MemberExpression/fixture.js',
+assert(_rec8._expr(_rec8._capt(_rec8._capt(_rec8._capt(_rec8._capt(foo, "arguments/0/object/object/object")[_rec8._capt(propName, "arguments/0/object/object/property")], "arguments/0/object/object")['key'], "arguments/0/object")[_rec8._capt(_rec8._capt(keys(), "arguments/0/property/object")['name'], "arguments/0/property")], "arguments/0"), {
+  content: "assert(foo[propName]['key'][keys()['name']])",
+  filepath: "test/fixtures/MemberExpression/fixture.js",
   line: 17
 }));
-
-assert.equal(_rec9._expr(_rec9._capt(_rec9._capt(ary1, 'arguments/0/object').length, 'arguments/0'), {
-  content: 'assert.equal(ary1.length, ary2.length)',
-  filepath: 'test/fixtures/MemberExpression/fixture.js',
+assert.equal(_rec9._expr(_rec9._capt(_rec9._capt(ary1, "arguments/0/object").length, "arguments/0"), {
+  content: "assert.equal(ary1.length, ary2.length)",
+  filepath: "test/fixtures/MemberExpression/fixture.js",
   line: 19
-}), _rec10._expr(_rec10._capt(_rec10._capt(ary2, 'arguments/1/object').length, 'arguments/1'), {
-  content: 'assert.equal(ary1.length, ary2.length)',
-  filepath: 'test/fixtures/MemberExpression/fixture.js',
+}), _rec10._expr(_rec10._capt(_rec10._capt(ary2, "arguments/1/object").length, "arguments/1"), {
+  content: "assert.equal(ary1.length, ary2.length)",
+  filepath: "test/fixtures/MemberExpression/fixture.js",
   line: 19
 }));
-
-assert.deepEqual(_rec11._expr(_rec11._capt(_rec11._capt(foo, 'arguments/0/object').propName, 'arguments/0'), {
-  content: 'assert.deepEqual(foo.propName, foo[key])',
-  filepath: 'test/fixtures/MemberExpression/fixture.js',
+assert.deepEqual(_rec11._expr(_rec11._capt(_rec11._capt(foo, "arguments/0/object").propName, "arguments/0"), {
+  content: "assert.deepEqual(foo.propName, foo[key])",
+  filepath: "test/fixtures/MemberExpression/fixture.js",
   line: 21
-}), _rec12._expr(_rec12._capt(_rec12._capt(foo, 'arguments/1/object')[_rec12._capt(key, 'arguments/1/property')], 'arguments/1'), {
-  content: 'assert.deepEqual(foo.propName, foo[key])',
-  filepath: 'test/fixtures/MemberExpression/fixture.js',
+}), _rec12._expr(_rec12._capt(_rec12._capt(foo, "arguments/1/object")[_rec12._capt(key, "arguments/1/property")], "arguments/1"), {
+  content: "assert.deepEqual(foo.propName, foo[key])",
+  filepath: "test/fixtures/MemberExpression/fixture.js",
   line: 21
 }));
diff --git a/test/fixtures/Mocha/expected-presets-es2015.js b/test/fixtures/Mocha/expected-presets-es2015.js
index a53df45..eb1f9a8 100644
--- a/test/fixtures/Mocha/expected-presets-es2015.js
+++ b/test/fixtures/Mocha/expected-presets-es2015.js
@@ -1,40 +1,40 @@
 'use strict';
 
-var _powerAssertVisitorKeys = '{"ArrayExpression":["elements"],"AssignmentExpression":["left","right"],"BinaryExpression":["left","right"],"Directive":["value"],"DirectiveLiteral":[],"BlockStatement":["directives","body"],"BreakStatement":["label"],"CallExpression":["callee","arguments"],"CatchClause":["param","body"],"ConditionalExpression":["test","consequent","alternate"],"ContinueStatement":["label"],"DebuggerStatement":[],"DoWhileStatement":["test","body"],"EmptyStatement":[],"ExpressionStatement":["expression"],"File":["program"],"ForInStatement":["left","right","body"],"ForStatement":["init","test","update","body"],"FunctionDeclaration":["id","params","body","returnType","typeParameters"],"FunctionExpression":["id","params","body","returnType","typeParameters"],"Identifier":["typeAnnotation"],"IfStatement":["test","consequent","alternate"],"LabeledStatement":["label","body"],"StringLiteral":[],"NumericLiteral":[],"NullLiteral":[],"BooleanLiteral":[],"RegExpLiteral":[],"LogicalExpression":["left","right"],"MemberExpression":["object","property"],"NewExpression":["callee","arguments"],"Program":["directives","body"],"ObjectExpression":["properties"],"ObjectMethod":["key","params","body","decorators","returnType","typeParameters"],"ObjectProperty":["key","value","decorators"],"RestElement":["argument","typeAnnotation"],"ReturnStatement":["argument"],"SequenceExpression":["expressions"],"SwitchCase":["test","consequent"],"SwitchStatement":["discriminant","cases"],"ThisExpression":[],"ThrowStatement":["argument"],"TryStatement":["block","handler","finalizer"],"UnaryExpression":["argument"],"UpdateExpression":["argument"],"VariableDeclaration":["declarations"],"VariableDeclarator":["id","init"],"WhileStatement":["test","body"],"WithStatement":["object","body"],"AssignmentPattern":["left","right"],"ArrayPattern":["elements","typeAnnotation"],"ArrowFunctionExpression":["params","body","returnType","typeParameters"],"ClassBody":["body"],"ClassDeclaration":["id","body","superClass","mixins","typeParameters","superTypeParameters","implements","decorators"],"ClassExpression":["id","body","superClass","mixins","typeParameters","superTypeParameters","implements","decorators"],"ExportAllDeclaration":["source"],"ExportDefaultDeclaration":["declaration"],"ExportNamedDeclaration":["declaration","specifiers","source"],"ExportSpecifier":["local","exported"],"ForOfStatement":["left","right","body"],"ImportDeclaration":["specifiers","source"],"ImportDefaultSpecifier":["local"],"ImportNamespaceSpecifier":["local"],"ImportSpecifier":["local","imported"],"MetaProperty":["meta","property"],"ClassMethod":["key","params","body","decorators","returnType","typeParameters"],"ObjectPattern":["properties","typeAnnotation"],"SpreadElement":["argument"],"Super":[],"TaggedTemplateExpression":["tag","quasi"],"TemplateElement":[],"TemplateLiteral":["quasis","expressions"],"YieldExpression":["argument"],"AnyTypeAnnotation":[],"ArrayTypeAnnotation":["elementType"],"BooleanTypeAnnotation":[],"BooleanLiteralTypeAnnotation":[],"NullLiteralTypeAnnotation":[],"ClassImplements":["id","typeParameters"],"ClassProperty":["key","value","typeAnnotation","decorators"],"DeclareClass":["id","typeParameters","extends","body"],"DeclareFunction":["id"],"DeclareInterface":["id","typeParameters","extends","body"],"DeclareModule":["id","body"],"DeclareModuleExports":["typeAnnotation"],"DeclareTypeAlias":["id","typeParameters","right"],"DeclareOpaqueType":["id","typeParameters","supertype"],"DeclareVariable":["id"],"DeclareExportDeclaration":["declaration","specifiers","source"],"ExistentialTypeParam":[],"FunctionTypeAnnotation":["typeParameters","params","rest","returnType"],"FunctionTypeParam":["name","typeAnnotation"],"GenericTypeAnnotation":["id","typeParameters"],"InterfaceExtends":["id","typeParameters"],"InterfaceDeclaration":["id","typeParameters","extends","body"],"IntersectionTypeAnnotation":["types"],"MixedTypeAnnotation":[],"EmptyTypeAnnotation":[],"NullableTypeAnnotation":["typeAnnotation"],"NumericLiteralTypeAnnotation":[],"NumberTypeAnnotation":[],"StringLiteralTypeAnnotation":[],"StringTypeAnnotation":[],"ThisTypeAnnotation":[],"TupleTypeAnnotation":["types"],"TypeofTypeAnnotation":["argument"],"TypeAlias":["id","typeParameters","right"],"OpaqueType":["id","typeParameters","impltype","supertype"],"TypeAnnotation":["typeAnnotation"],"TypeCastExpression":["expression","typeAnnotation"],"TypeParameter":["bound"],"TypeParameterDeclaration":["params"],"TypeParameterInstantiation":["params"],"ObjectTypeAnnotation":["properties","indexers","callProperties"],"ObjectTypeCallProperty":["value"],"ObjectTypeIndexer":["id","key","value"],"ObjectTypeProperty":["key","value"],"ObjectTypeSpreadProperty":["argument"],"QualifiedTypeIdentifier":["id","qualification"],"UnionTypeAnnotation":["types"],"VoidTypeAnnotation":[],"JSXAttribute":["name","value"],"JSXClosingElement":["name"],"JSXElement":["openingElement","children","closingElement"],"JSXEmptyExpression":[],"JSXExpressionContainer":["expression"],"JSXSpreadChild":["expression"],"JSXIdentifier":[],"JSXMemberExpression":["object","property"],"JSXNamespacedName":["namespace","name"],"JSXOpeningElement":["name","attributes"],"JSXSpreadAttribute":["argument"],"JSXText":[],"Noop":[],"ParenthesizedExpression":["expression"],"AwaitExpression":["argument"],"ForAwaitStatement":["left","right","body"],"BindExpression":["object","callee"],"Import":[],"Decorator":["expression"],"DoExpression":["body"],"ExportDefaultSpecifier":["exported"],"ExportNamespaceSpecifier":["exported"],"RestProperty":["argument"],"SpreadProperty":["argument"]}',
+var _powerAssertVisitorKeys = "{\"ArrayExpression\":[\"elements\"],\"AssignmentExpression\":[\"left\",\"right\"],\"BinaryExpression\":[\"left\",\"right\"],\"Directive\":[\"value\"],\"DirectiveLiteral\":[],\"BlockStatement\":[\"directives\",\"body\"],\"BreakStatement\":[\"label\"],\"CallExpression\":[\"callee\",\"arguments\",\"typeParameters\"],\"CatchClause\":[\"param\",\"body\"],\"ConditionalExpression\":[\"test\",\"consequent\",\"alternate\"],\"ContinueStatement\":[\"label\"],\"DebuggerStatement\":[],\"DoWhileStatement\":[\"test\",\"body\"],\"EmptyStatement\":[],\"ExpressionStatement\":[\"expression\"],\"File\":[\"program\"],\"ForInStatement\":[\"left\",\"right\",\"body\"],\"ForStatement\":[\"init\",\"test\",\"update\",\"body\"],\"FunctionDeclaration\":[\"id\",\"params\",\"body\",\"returnType\",\"typeParameters\"],\"FunctionExpression\":[\"id\",\"params\",\"body\",\"returnType\",\"typeParameters\"],\"Identifier\":[\"typeAnnotation\"],\"IfStatement\":[\"test\",\"consequent\",\"alternate\"],\"LabeledStatement\":[\"label\",\"body\"],\"StringLiteral\":[],\"NumericLiteral\":[],\"NullLiteral\":[],\"BooleanLiteral\":[],\"RegExpLiteral\":[],\"LogicalExpression\":[\"left\",\"right\"],\"MemberExpression\":[\"object\",\"property\"],\"NewExpression\":[\"callee\",\"arguments\",\"typeParameters\"],\"Program\":[\"directives\",\"body\"],\"ObjectExpression\":[\"properties\"],\"ObjectMethod\":[\"key\",\"params\",\"body\",\"decorators\",\"returnType\",\"typeParameters\"],\"ObjectProperty\":[\"key\",\"value\",\"decorators\"],\"RestElement\":[\"argument\",\"typeAnnotation\"],\"ReturnStatement\":[\"argument\"],\"SequenceExpression\":[\"expressions\"],\"SwitchCase\":[\"test\",\"consequent\"],\"SwitchStatement\":[\"discriminant\",\"cases\"],\"ThisExpression\":[],\"ThrowStatement\":[\"argument\"],\"TryStatement\":[\"block\",\"handler\",\"finalizer\"],\"UnaryExpression\":[\"argument\"],\"UpdateExpression\":[\"argument\"],\"VariableDeclaration\":[\"declarations\"],\"VariableDeclarator\":[\"id\",\"init\"],\"WhileStatement\":[\"test\",\"body\"],\"WithStatement\":[\"object\",\"body\"],\"AssignmentPattern\":[\"left\",\"right\"],\"ArrayPattern\":[\"elements\",\"typeAnnotation\"],\"ArrowFunctionExpression\":[\"params\",\"body\",\"returnType\",\"typeParameters\"],\"ClassBody\":[\"body\"],\"ClassDeclaration\":[\"id\",\"body\",\"superClass\",\"mixins\",\"typeParameters\",\"superTypeParameters\",\"implements\",\"decorators\"],\"ClassExpression\":[\"id\",\"body\",\"superClass\",\"mixins\",\"typeParameters\",\"superTypeParameters\",\"implements\",\"decorators\"],\"ExportAllDeclaration\":[\"source\"],\"ExportDefaultDeclaration\":[\"declaration\"],\"ExportNamedDeclaration\":[\"declaration\",\"specifiers\",\"source\"],\"ExportSpecifier\":[\"local\",\"exported\"],\"ForOfStatement\":[\"left\",\"right\",\"body\"],\"ImportDeclaration\":[\"specifiers\",\"source\"],\"ImportDefaultSpecifier\":[\"local\"],\"ImportNamespaceSpecifier\":[\"local\"],\"ImportSpecifier\":[\"local\",\"imported\"],\"MetaProperty\":[\"meta\",\"property\"],\"ClassMethod\":[\"key\",\"params\",\"body\",\"decorators\",\"returnType\",\"typeParameters\"],\"ObjectPattern\":[\"properties\",\"typeAnnotation\"],\"SpreadElement\":[\"argument\"],\"Super\":[],\"TaggedTemplateExpression\":[\"tag\",\"quasi\"],\"TemplateElement\":[],\"TemplateLiteral\":[\"quasis\",\"expressions\"],\"YieldExpression\":[\"argument\"],\"AnyTypeAnnotation\":[],\"ArrayTypeAnnotation\":[\"elementType\"],\"BooleanTypeAnnotation\":[],\"BooleanLiteralTypeAnnotation\":[],\"NullLiteralTypeAnnotation\":[],\"ClassImplements\":[\"id\",\"typeParameters\"],\"DeclareClass\":[\"id\",\"typeParameters\",\"extends\",\"body\"],\"DeclareFunction\":[\"id\"],\"DeclareInterface\":[\"id\",\"typeParameters\",\"extends\",\"body\"],\"DeclareModule\":[\"id\",\"body\"],\"DeclareModuleExports\":[\"typeAnnotation\"],\"DeclareTypeAlias\":[\"id\",\"typeParameters\",\"right\"],\"DeclareOpaqueType\":[\"id\",\"typeParameters\",\"supertype\"],\"DeclareVariable\":[\"id\"],\"DeclareExportDeclaration\":[\"declaration\",\"specifiers\",\"source\"],\"DeclareExportAllDeclaration\":[\"source\"],\"DeclaredPredicate\":[\"value\"],\"ExistsTypeAnnotation\":[],\"FunctionTypeAnnotation\":[\"typeParameters\",\"params\",\"rest\",\"returnType\"],\"FunctionTypeParam\":[\"name\",\"typeAnnotation\"],\"GenericTypeAnnotation\":[\"id\",\"typeParameters\"],\"InferredPredicate\":[],\"InterfaceExtends\":[\"id\",\"typeParameters\"],\"InterfaceDeclaration\":[\"id\",\"typeParameters\",\"extends\",\"body\"],\"IntersectionTypeAnnotation\":[\"types\"],\"MixedTypeAnnotation\":[],\"EmptyTypeAnnotation\":[],\"NullableTypeAnnotation\":[\"typeAnnotation\"],\"NumberLiteralTypeAnnotation\":[],\"NumberTypeAnnotation\":[],\"ObjectTypeAnnotation\":[\"properties\",\"indexers\",\"callProperties\"],\"ObjectTypeCallProperty\":[\"value\"],\"ObjectTypeIndexer\":[\"id\",\"key\",\"value\"],\"ObjectTypeProperty\":[\"key\",\"value\"],\"ObjectTypeSpreadProperty\":[\"argument\"],\"OpaqueType\":[\"id\",\"typeParameters\",\"supertype\",\"impltype\"],\"QualifiedTypeIdentifier\":[\"id\",\"qualification\"],\"StringLiteralTypeAnnotation\":[],\"StringTypeAnnotation\":[],\"ThisTypeAnnotation\":[],\"TupleTypeAnnotation\":[\"types\"],\"TypeofTypeAnnotation\":[\"argument\"],\"TypeAlias\":[\"id\",\"typeParameters\",\"right\"],\"TypeAnnotation\":[\"typeAnnotation\"],\"TypeCastExpression\":[\"expression\",\"typeAnnotation\"],\"TypeParameter\":[\"bound\",\"default\"],\"TypeParameterDeclaration\":[\"params\"],\"TypeParameterInstantiation\":[\"params\"],\"UnionTypeAnnotation\":[\"types\"],\"VoidTypeAnnotation\":[],\"JSXAttribute\":[\"name\",\"value\"],\"JSXClosingElement\":[\"name\"],\"JSXElement\":[\"openingElement\",\"children\",\"closingElement\"],\"JSXEmptyExpression\":[],\"JSXExpressionContainer\":[\"expression\"],\"JSXSpreadChild\":[\"expression\"],\"JSXIdentifier\":[],\"JSXMemberExpression\":[\"object\",\"property\"],\"JSXNamespacedName\":[\"namespace\",\"name\"],\"JSXOpeningElement\":[\"name\",\"attributes\"],\"JSXSpreadAttribute\":[\"argument\"],\"JSXText\":[],\"JSXFragment\":[\"openingFragment\",\"children\",\"closingFragment\"],\"JSXOpeningFragment\":[],\"JSXClosingFragment\":[],\"Noop\":[],\"ParenthesizedExpression\":[\"expression\"],\"AwaitExpression\":[\"argument\"],\"BindExpression\":[\"object\",\"callee\"],\"ClassProperty\":[\"key\",\"value\",\"typeAnnotation\",\"decorators\"],\"Import\":[],\"Decorator\":[\"expression\"],\"DoExpression\":[\"body\"],\"ExportDefaultSpecifier\":[\"exported\"],\"ExportNamespaceSpecifier\":[\"exported\"],\"TSParameterProperty\":[\"parameter\"],\"TSDeclareFunction\":[\"id\",\"typeParameters\",\"params\",\"returnType\"],\"TSDeclareMethod\":[\"decorators\",\"key\",\"typeParameters\",\"params\",\"returnType\"],\"TSQualifiedName\":[\"left\",\"right\"],\"TSCallSignatureDeclaration\":[\"typeParameters\",\"parameters\",\"typeAnnotation\"],\"TSConstructSignatureDeclaration\":[\"typeParameters\",\"parameters\",\"typeAnnotation\"],\"TSPropertySignature\":[\"key\",\"typeAnnotation\",\"initializer\"],\"TSMethodSignature\":[\"key\",\"typeParameters\",\"parameters\",\"typeAnnotation\"],\"TSIndexSignature\":[\"parameters\",\"typeAnnotation\"],\"TSAnyKeyword\":[],\"TSNumberKeyword\":[],\"TSObjectKeyword\":[],\"TSBooleanKeyword\":[],\"TSStringKeyword\":[],\"TSSymbolKeyword\":[],\"TSVoidKeyword\":[],\"TSUndefinedKeyword\":[],\"TSNullKeyword\":[],\"TSNeverKeyword\":[],\"TSThisType\":[],\"TSFunctionType\":[\"typeParameters\",\"typeAnnotation\"],\"TSConstructorType\":[\"typeParameters\",\"typeAnnotation\"],\"TSTypeReference\":[\"typeName\",\"typeParameters\"],\"TSTypePredicate\":[\"parameterName\",\"typeAnnotation\"],\"TSTypeQuery\":[\"exprName\"],\"TSTypeLiteral\":[\"members\"],\"TSArrayType\":[\"elementType\"],\"TSTupleType\":[\"elementTypes\"],\"TSUnionType\":[\"types\"],\"TSIntersectionType\":[\"types\"],\"TSParenthesizedType\":[\"typeAnnotation\"],\"TSTypeOperator\":[\"typeAnnotation\"],\"TSIndexedAccessType\":[\"objectType\",\"indexType\"],\"TSMappedType\":[\"typeParameter\",\"typeAnnotation\"],\"TSLiteralType\":[\"literal\"],\"TSExpressionWithTypeArguments\":[\"expression\",\"typeParameters\"],\"TSInterfaceDeclaration\":[\"id\",\"typeParameters\",\"extends\",\"body\"],\"TSInterfaceBody\":[\"body\"],\"TSTypeAliasDeclaration\":[\"id\",\"typeParameters\",\"typeAnnotation\"],\"TSAsExpression\":[\"expression\",\"typeAnnotation\"],\"TSTypeAssertion\":[\"typeAnnotation\",\"expression\"],\"TSEnumDeclaration\":[\"id\",\"members\"],\"TSEnumMember\":[\"id\",\"initializer\"],\"TSModuleDeclaration\":[\"id\",\"body\"],\"TSModuleBlock\":[\"body\"],\"TSImportEqualsDeclaration\":[\"id\",\"moduleReference\"],\"TSExternalModuleReference\":[\"expression\"],\"TSNonNullExpression\":[\"expression\"],\"TSExportAssignment\":[\"expression\"],\"TSNamespaceExportDeclaration\":[\"id\"],\"TSTypeAnnotation\":[\"typeAnnotation\"],\"TSTypeParameterInstantiation\":[\"params\"],\"TSTypeParameterDeclaration\":[\"params\"],\"TSTypeParameter\":[\"constraint\",\"default\"]}",
     _powerAssertRecorder = function () { function PowerAssertRecorder() { this.captured = []; } PowerAssertRecorder.prototype._capt = function _capt(value, espath) { this.captured.push({ value: value, espath: espath }); return value; }; PowerAssertRecorder.prototype._expr = function _expr(value, source) { var capturedValues = this.captured; this.captured = []; return { powerAssertContext: { value: value, events: capturedValues }, source: source }; }; return PowerAssertRecorder; }();
 
 var assert = require('power-assert');
 
 describe('Array#indexOf()', function () {
-    beforeEach(function () {
-        this.ary = [1, 2, 3];
-    });
-    it('should return index when the value is present', function () {
-        var _rec = new _powerAssertRecorder();
+  beforeEach(function () {
+    this.ary = [1, 2, 3];
+  });
+  it('should return index when the value is present', function () {
+    var _rec = new _powerAssertRecorder();
 
-        var who = 'ariya',
-            two = 2;
-        assert(_rec._expr(_rec._capt(_rec._capt(_rec._capt(this.ary, 'arguments/0/left/callee/object').indexOf(_rec._capt(who, 'arguments/0/left/arguments/0')), 'arguments/0/left') === _rec._capt(two, 'arguments/0/right'), 'arguments/0'), {
-            content: 'assert(this.ary.indexOf(who) === two)',
-            filepath: 'test/fixtures/Mocha/fixture.js',
-            line: 11,
-            ast: '{"type":"CallExpression","callee":{"type":"Identifier","name":"assert","range":[0,6]},"arguments":[{"type":"BinaryExpression","operator":"===","left":{"type":"CallExpression","callee":{"type":"MemberExpression","object":{"type":"MemberExpression","object":{"type":"ThisExpression","range":[7,11]},"property":{"type":"Identifier","name":"ary","range":[12,15]},"computed":false,"range":[7,15]},"property":{"type":"Identifier","name":"indexOf","range":[16,23]},"computed":false,"range":[7,23]},"arguments":[{"type":"Identifier","name":"who","range":[24,27]}],"range":[7,28]},"right":{"type":"Identifier","name":"two","range":[33,36]},"range":[7,36]}],"range":[0,37]}',
-            tokens: '[{"type":{"label":"name"},"value":"assert","range":[0,6]},{"type":{"label":"("},"range":[6,7]},{"type":{"label":"this"},"value":"this","range":[7,11]},{"type":{"label":"."},"range":[11,12]},{"type":{"label":"name"},"value":"ary","range":[12,15]},{"type":{"label":"."},"range":[15,16]},{"type":{"label":"name"},"value":"indexOf","range":[16,23]},{"type":{"label":"("},"range":[23,24]},{"type":{"label":"name"},"value":"who","range":[24,27]},{"type":{"label":")"},"range":[27,28]},{"type":{"label":"==/!="},"value":"===","range":[29,32]},{"type":{"label":"name"},"value":"two","range":[33,36]},{"type":{"label":")"},"range":[36,37]}]',
-            visitorKeys: _powerAssertVisitorKeys
-        }));
-    });
-    it('should return -1 when the value is not present', function () {
-        var _rec2 = new _powerAssertRecorder();
+    var who = 'ariya',
+        two = 2;
+    assert(_rec._expr(_rec._capt(_rec._capt(_rec._capt(this.ary, "arguments/0/left/callee/object").indexOf(_rec._capt(who, "arguments/0/left/arguments/0")), "arguments/0/left") === _rec._capt(two, "arguments/0/right"), "arguments/0"), {
+      content: "assert(this.ary.indexOf(who) === two)",
+      filepath: "test/fixtures/Mocha/fixture.js",
+      line: 11,
+      ast: "{\"type\":\"CallExpression\",\"callee\":{\"type\":\"Identifier\",\"name\":\"assert\",\"range\":[0,6]},\"arguments\":[{\"type\":\"BinaryExpression\",\"operator\":\"===\",\"left\":{\"type\":\"CallExpression\",\"callee\":{\"type\":\"MemberExpression\",\"object\":{\"type\":\"MemberExpression\",\"object\":{\"type\":\"ThisExpression\",\"range\":[7,11]},\"property\":{\"type\":\"Identifier\",\"name\":\"ary\",\"range\":[12,15]},\"computed\":false,\"range\":[7,15]},\"property\":{\"type\":\"Identifier\",\"name\":\"indexOf\",\"range\":[16,23]},\"computed\":false,\"range\":[7,23]},\"arguments\":[{\"type\":\"Identifier\",\"name\":\"who\",\"range\":[24,27]}],\"range\":[7,28]},\"right\":{\"type\":\"Identifier\",\"name\":\"two\",\"range\":[33,36]},\"range\":[7,36]}],\"range\":[0,37]}",
+      tokens: "[{\"type\":{\"label\":\"name\"},\"value\":\"assert\",\"range\":[0,6]},{\"type\":{\"label\":\"(\"},\"range\":[6,7]},{\"type\":{\"label\":\"this\"},\"value\":\"this\",\"range\":[7,11]},{\"type\":{\"label\":\".\"},\"range\":[11,12]},{\"type\":{\"label\":\"name\"},\"value\":\"ary\",\"range\":[12,15]},{\"type\":{\"label\":\".\"},\"range\":[15,16]},{\"type\":{\"label\":\"name\"},\"value\":\"indexOf\",\"range\":[16,23]},{\"type\":{\"label\":\"(\"},\"range\":[23,24]},{\"type\":{\"label\":\"name\"},\"value\":\"who\",\"range\":[24,27]},{\"type\":{\"label\":\")\"},\"range\":[27,28]},{\"type\":{\"label\":\"==/!=\"},\"value\":\"===\",\"range\":[29,32]},{\"type\":{\"label\":\"name\"},\"value\":\"two\",\"range\":[33,36]},{\"type\":{\"label\":\")\"},\"range\":[36,37]}]",
+      visitorKeys: _powerAssertVisitorKeys
+    }));
+  });
+  it('should return -1 when the value is not present', function () {
+    var _rec2 = new _powerAssertRecorder();
 
-        var minusOne = -1,
-            two = 2;
-        assert.ok(_rec2._expr(_rec2._capt(_rec2._capt(_rec2._capt(this.ary, 'arguments/0/left/callee/object').indexOf(_rec2._capt(two, 'arguments/0/left/arguments/0')), 'arguments/0/left') === _rec2._capt(minusOne, 'arguments/0/right'), 'arguments/0'), {
-            content: 'assert.ok(this.ary.indexOf(two) === minusOne, \'THIS IS AN ASSERTION MESSAGE\')',
-            filepath: 'test/fixtures/Mocha/fixture.js',
-            line: 15,
-            ast: '{"type":"CallExpression","callee":{"type":"MemberExpression","object":{"type":"Identifier","name":"assert","range":[0,6]},"property":{"type":"Identifier","name":"ok","range":[7,9]},"computed":false,"range":[0,9]},"arguments":[{"type":"BinaryExpression","operator":"===","left":{"type":"CallExpression","callee":{"type":"MemberExpression","object":{"type":"MemberExpression","object":{"type":"ThisExpression","range":[10,14]},"property":{"type":"Identifier","name":"ary","range":[15,18]},"computed":false,"range":[10,18]},"property":{"type":"Identifier","name":"indexOf","range":[19,26]},"computed":false,"range":[10,26]},"arguments":[{"type":"Identifier","name":"two","range":[27,30]}],"range":[10,31]},"right":{"type":"Identifier","name":"minusOne","range":[36,44]},"range":[10,44]},{"type":"StringLiteral","value":"THIS IS AN ASSERTION MESSAGE","range":[46,76]}],"range":[0,77]}',
-            tokens: '[{"type":{"label":"name"},"value":"assert","range":[0,6]},{"type":{"label":"."},"range":[6,7]},{"type":{"label":"name"},"value":"ok","range":[7,9]},{"type":{"label":"("},"range":[9,10]},{"type":{"label":"this"},"value":"this","range":[10,14]},{"type":{"label":"."},"range":[14,15]},{"type":{"label":"name"},"value":"ary","range":[15,18]},{"type":{"label":"."},"range":[18,19]},{"type":{"label":"name"},"value":"indexOf","range":[19,26]},{"type":{"label":"("},"range":[26,27]},{"type":{"label":"name"},"value":"two","range":[27,30]},{"type":{"label":")"},"range":[30,31]},{"type":{"label":"==/!="},"value":"===","range":[32,35]},{"type":{"label":"name"},"value":"minusOne","range":[36,44]},{"type":{"label":","},"range":[44,45]},{"type":{"label":"string"},"value":"THIS IS AN ASSERTION MESSAGE","range":[46,76]},{"type":{"label":")"},"range":[76,77]}]',
-            visitorKeys: _powerAssertVisitorKeys
-        }), 'THIS IS AN ASSERTION MESSAGE');
-    });
+    var minusOne = -1,
+        two = 2;
+    assert.ok(_rec2._expr(_rec2._capt(_rec2._capt(_rec2._capt(this.ary, "arguments/0/left/callee/object").indexOf(_rec2._capt(two, "arguments/0/left/arguments/0")), "arguments/0/left") === _rec2._capt(minusOne, "arguments/0/right"), "arguments/0"), {
+      content: "assert.ok(this.ary.indexOf(two) === minusOne, 'THIS IS AN ASSERTION MESSAGE')",
+      filepath: "test/fixtures/Mocha/fixture.js",
+      line: 15,
+      ast: "{\"type\":\"CallExpression\",\"callee\":{\"type\":\"MemberExpression\",\"object\":{\"type\":\"Identifier\",\"name\":\"assert\",\"range\":[0,6]},\"property\":{\"type\":\"Identifier\",\"name\":\"ok\",\"range\":[7,9]},\"computed\":false,\"range\":[0,9]},\"arguments\":[{\"type\":\"BinaryExpression\",\"operator\":\"===\",\"left\":{\"type\":\"CallExpression\",\"callee\":{\"type\":\"MemberExpression\",\"object\":{\"type\":\"MemberExpression\",\"object\":{\"type\":\"ThisExpression\",\"range\":[10,14]},\"property\":{\"type\":\"Identifier\",\"name\":\"ary\",\"range\":[15,18]},\"computed\":false,\"range\":[10,18]},\"property\":{\"type\":\"Identifier\",\"name\":\"indexOf\",\"range\":[19,26]},\"computed\":false,\"range\":[10,26]},\"arguments\":[{\"type\":\"Identifier\",\"name\":\"two\",\"range\":[27,30]}],\"range\":[10,31]},\"right\":{\"type\":\"Identifier\",\"name\":\"minusOne\",\"range\":[36,44]},\"range\":[10,44]},{\"type\":\"StringLiteral\",\"value\":\"THIS IS AN ASSERTION MESSAGE\",\"range\":[46,76]}],\"range\":[0,77]}",
+      tokens: "[{\"type\":{\"label\":\"name\"},\"value\":\"assert\",\"range\":[0,6]},{\"type\":{\"label\":\".\"},\"range\":[6,7]},{\"type\":{\"label\":\"name\"},\"value\":\"ok\",\"range\":[7,9]},{\"type\":{\"label\":\"(\"},\"range\":[9,10]},{\"type\":{\"label\":\"this\"},\"value\":\"this\",\"range\":[10,14]},{\"type\":{\"label\":\".\"},\"range\":[14,15]},{\"type\":{\"label\":\"name\"},\"value\":\"ary\",\"range\":[15,18]},{\"type\":{\"label\":\".\"},\"range\":[18,19]},{\"type\":{\"label\":\"name\"},\"value\":\"indexOf\",\"range\":[19,26]},{\"type\":{\"label\":\"(\"},\"range\":[26,27]},{\"type\":{\"label\":\"name\"},\"value\":\"two\",\"range\":[27,30]},{\"type\":{\"label\":\")\"},\"range\":[30,31]},{\"type\":{\"label\":\"==/!=\"},\"value\":\"===\",\"range\":[32,35]},{\"type\":{\"label\":\"name\"},\"value\":\"minusOne\",\"range\":[36,44]},{\"type\":{\"label\":\",\"},\"range\":[44,45]},{\"type\":{\"label\":\"string\"},\"value\":\"THIS IS AN ASSERTION MESSAGE\",\"range\":[46,76]},{\"type\":{\"label\":\")\"},\"range\":[76,77]}]",
+      visitorKeys: _powerAssertVisitorKeys
+    }), 'THIS IS AN ASSERTION MESSAGE');
+  });
 });
diff --git a/test/fixtures/Mocha/expected.js b/test/fixtures/Mocha/expected.js
index 81ede0b..da488a3 100644
--- a/test/fixtures/Mocha/expected.js
+++ b/test/fixtures/Mocha/expected.js
@@ -5,29 +5,29 @@ var _powerAssertRecorder = function () { function PowerAssertRecorder() { this.c
 var assert = require('power-assert');
 
 describe('Array#indexOf()', function () {
-    beforeEach(function () {
-        this.ary = [1, 2, 3];
-    });
-    it('should return index when the value is present', function () {
-        var _rec = new _powerAssertRecorder();
+  beforeEach(function () {
+    this.ary = [1, 2, 3];
+  });
+  it('should return index when the value is present', function () {
+    var _rec = new _powerAssertRecorder();
 
-        var who = 'ariya',
-            two = 2;
-        assert(_rec._expr(_rec._capt(_rec._capt(_rec._capt(this.ary, 'arguments/0/left/callee/object').indexOf(_rec._capt(who, 'arguments/0/left/arguments/0')), 'arguments/0/left') === _rec._capt(two, 'arguments/0/right'), 'arguments/0'), {
-            content: 'assert(this.ary.indexOf(who) === two)',
-            filepath: 'test/fixtures/Mocha/fixture.js',
-            line: 11
-        }));
-    });
-    it('should return -1 when the value is not present', function () {
-        var _rec2 = new _powerAssertRecorder();
+    var who = 'ariya',
+        two = 2;
+    assert(_rec._expr(_rec._capt(_rec._capt(_rec._capt(this.ary, "arguments/0/left/callee/object").indexOf(_rec._capt(who, "arguments/0/left/arguments/0")), "arguments/0/left") === _rec._capt(two, "arguments/0/right"), "arguments/0"), {
+      content: "assert(this.ary.indexOf(who) === two)",
+      filepath: "test/fixtures/Mocha/fixture.js",
+      line: 11
+    }));
+  });
+  it('should return -1 when the value is not present', function () {
+    var _rec2 = new _powerAssertRecorder();
 
-        var minusOne = -1,
-            two = 2;
-        assert.ok(_rec2._expr(_rec2._capt(_rec2._capt(_rec2._capt(this.ary, 'arguments/0/left/callee/object').indexOf(_rec2._capt(two, 'arguments/0/left/arguments/0')), 'arguments/0/left') === _rec2._capt(minusOne, 'arguments/0/right'), 'arguments/0'), {
-            content: 'assert.ok(this.ary.indexOf(two) === minusOne, \'THIS IS AN ASSERTION MESSAGE\')',
-            filepath: 'test/fixtures/Mocha/fixture.js',
-            line: 15
-        }), 'THIS IS AN ASSERTION MESSAGE');
-    });
+    var minusOne = -1,
+        two = 2;
+    assert.ok(_rec2._expr(_rec2._capt(_rec2._capt(_rec2._capt(this.ary, "arguments/0/left/callee/object").indexOf(_rec2._capt(two, "arguments/0/left/arguments/0")), "arguments/0/left") === _rec2._capt(minusOne, "arguments/0/right"), "arguments/0"), {
+      content: "assert.ok(this.ary.indexOf(two) === minusOne, 'THIS IS AN ASSERTION MESSAGE')",
+      filepath: "test/fixtures/Mocha/fixture.js",
+      line: 15
+    }), 'THIS IS AN ASSERTION MESSAGE');
+  });
 });
diff --git a/test/fixtures/NewExpression/expected-presets-es2015.js b/test/fixtures/NewExpression/expected-presets-es2015.js
index bfe55be..a50d457 100644
--- a/test/fixtures/NewExpression/expected-presets-es2015.js
+++ b/test/fixtures/NewExpression/expected-presets-es2015.js
@@ -1,6 +1,6 @@
 'use strict';
 
-var _powerAssertVisitorKeys = '{"ArrayExpression":["elements"],"AssignmentExpression":["left","right"],"BinaryExpression":["left","right"],"Directive":["value"],"DirectiveLiteral":[],"BlockStatement":["directives","body"],"BreakStatement":["label"],"CallExpression":["callee","arguments"],"CatchClause":["param","body"],"ConditionalExpression":["test","consequent","alternate"],"ContinueStatement":["label"],"DebuggerStatement":[],"DoWhileStatement":["test","body"],"EmptyStatement":[],"ExpressionStatement":["expression"],"File":["program"],"ForInStatement":["left","right","body"],"ForStatement":["init","test","update","body"],"FunctionDeclaration":["id","params","body","returnType","typeParameters"],"FunctionExpression":["id","params","body","returnType","typeParameters"],"Identifier":["typeAnnotation"],"IfStatement":["test","consequent","alternate"],"LabeledStatement":["label","body"],"StringLiteral":[],"NumericLiteral":[],"NullLiteral":[],"BooleanLiteral":[],"RegExpLiteral":[],"LogicalExpression":["left","right"],"MemberExpression":["object","property"],"NewExpression":["callee","arguments"],"Program":["directives","body"],"ObjectExpression":["properties"],"ObjectMethod":["key","params","body","decorators","returnType","typeParameters"],"ObjectProperty":["key","value","decorators"],"RestElement":["argument","typeAnnotation"],"ReturnStatement":["argument"],"SequenceExpression":["expressions"],"SwitchCase":["test","consequent"],"SwitchStatement":["discriminant","cases"],"ThisExpression":[],"ThrowStatement":["argument"],"TryStatement":["block","handler","finalizer"],"UnaryExpression":["argument"],"UpdateExpression":["argument"],"VariableDeclaration":["declarations"],"VariableDeclarator":["id","init"],"WhileStatement":["test","body"],"WithStatement":["object","body"],"AssignmentPattern":["left","right"],"ArrayPattern":["elements","typeAnnotation"],"ArrowFunctionExpression":["params","body","returnType","typeParameters"],"ClassBody":["body"],"ClassDeclaration":["id","body","superClass","mixins","typeParameters","superTypeParameters","implements","decorators"],"ClassExpression":["id","body","superClass","mixins","typeParameters","superTypeParameters","implements","decorators"],"ExportAllDeclaration":["source"],"ExportDefaultDeclaration":["declaration"],"ExportNamedDeclaration":["declaration","specifiers","source"],"ExportSpecifier":["local","exported"],"ForOfStatement":["left","right","body"],"ImportDeclaration":["specifiers","source"],"ImportDefaultSpecifier":["local"],"ImportNamespaceSpecifier":["local"],"ImportSpecifier":["local","imported"],"MetaProperty":["meta","property"],"ClassMethod":["key","params","body","decorators","returnType","typeParameters"],"ObjectPattern":["properties","typeAnnotation"],"SpreadElement":["argument"],"Super":[],"TaggedTemplateExpression":["tag","quasi"],"TemplateElement":[],"TemplateLiteral":["quasis","expressions"],"YieldExpression":["argument"],"AnyTypeAnnotation":[],"ArrayTypeAnnotation":["elementType"],"BooleanTypeAnnotation":[],"BooleanLiteralTypeAnnotation":[],"NullLiteralTypeAnnotation":[],"ClassImplements":["id","typeParameters"],"ClassProperty":["key","value","typeAnnotation","decorators"],"DeclareClass":["id","typeParameters","extends","body"],"DeclareFunction":["id"],"DeclareInterface":["id","typeParameters","extends","body"],"DeclareModule":["id","body"],"DeclareModuleExports":["typeAnnotation"],"DeclareTypeAlias":["id","typeParameters","right"],"DeclareOpaqueType":["id","typeParameters","supertype"],"DeclareVariable":["id"],"DeclareExportDeclaration":["declaration","specifiers","source"],"ExistentialTypeParam":[],"FunctionTypeAnnotation":["typeParameters","params","rest","returnType"],"FunctionTypeParam":["name","typeAnnotation"],"GenericTypeAnnotation":["id","typeParameters"],"InterfaceExtends":["id","typeParameters"],"InterfaceDeclaration":["id","typeParameters","extends","body"],"IntersectionTypeAnnotation":["types"],"MixedTypeAnnotation":[],"EmptyTypeAnnotation":[],"NullableTypeAnnotation":["typeAnnotation"],"NumericLiteralTypeAnnotation":[],"NumberTypeAnnotation":[],"StringLiteralTypeAnnotation":[],"StringTypeAnnotation":[],"ThisTypeAnnotation":[],"TupleTypeAnnotation":["types"],"TypeofTypeAnnotation":["argument"],"TypeAlias":["id","typeParameters","right"],"OpaqueType":["id","typeParameters","impltype","supertype"],"TypeAnnotation":["typeAnnotation"],"TypeCastExpression":["expression","typeAnnotation"],"TypeParameter":["bound"],"TypeParameterDeclaration":["params"],"TypeParameterInstantiation":["params"],"ObjectTypeAnnotation":["properties","indexers","callProperties"],"ObjectTypeCallProperty":["value"],"ObjectTypeIndexer":["id","key","value"],"ObjectTypeProperty":["key","value"],"ObjectTypeSpreadProperty":["argument"],"QualifiedTypeIdentifier":["id","qualification"],"UnionTypeAnnotation":["types"],"VoidTypeAnnotation":[],"JSXAttribute":["name","value"],"JSXClosingElement":["name"],"JSXElement":["openingElement","children","closingElement"],"JSXEmptyExpression":[],"JSXExpressionContainer":["expression"],"JSXSpreadChild":["expression"],"JSXIdentifier":[],"JSXMemberExpression":["object","property"],"JSXNamespacedName":["namespace","name"],"JSXOpeningElement":["name","attributes"],"JSXSpreadAttribute":["argument"],"JSXText":[],"Noop":[],"ParenthesizedExpression":["expression"],"AwaitExpression":["argument"],"ForAwaitStatement":["left","right","body"],"BindExpression":["object","callee"],"Import":[],"Decorator":["expression"],"DoExpression":["body"],"ExportDefaultSpecifier":["exported"],"ExportNamespaceSpecifier":["exported"],"RestProperty":["argument"],"SpreadProperty":["argument"]}',
+var _powerAssertVisitorKeys = "{\"ArrayExpression\":[\"elements\"],\"AssignmentExpression\":[\"left\",\"right\"],\"BinaryExpression\":[\"left\",\"right\"],\"Directive\":[\"value\"],\"DirectiveLiteral\":[],\"BlockStatement\":[\"directives\",\"body\"],\"BreakStatement\":[\"label\"],\"CallExpression\":[\"callee\",\"arguments\",\"typeParameters\"],\"CatchClause\":[\"param\",\"body\"],\"ConditionalExpression\":[\"test\",\"consequent\",\"alternate\"],\"ContinueStatement\":[\"label\"],\"DebuggerStatement\":[],\"DoWhileStatement\":[\"test\",\"body\"],\"EmptyStatement\":[],\"ExpressionStatement\":[\"expression\"],\"File\":[\"program\"],\"ForInStatement\":[\"left\",\"right\",\"body\"],\"ForStatement\":[\"init\",\"test\",\"update\",\"body\"],\"FunctionDeclaration\":[\"id\",\"params\",\"body\",\"returnType\",\"typeParameters\"],\"FunctionExpression\":[\"id\",\"params\",\"body\",\"returnType\",\"typeParameters\"],\"Identifier\":[\"typeAnnotation\"],\"IfStatement\":[\"test\",\"consequent\",\"alternate\"],\"LabeledStatement\":[\"label\",\"body\"],\"StringLiteral\":[],\"NumericLiteral\":[],\"NullLiteral\":[],\"BooleanLiteral\":[],\"RegExpLiteral\":[],\"LogicalExpression\":[\"left\",\"right\"],\"MemberExpression\":[\"object\",\"property\"],\"NewExpression\":[\"callee\",\"arguments\",\"typeParameters\"],\"Program\":[\"directives\",\"body\"],\"ObjectExpression\":[\"properties\"],\"ObjectMethod\":[\"key\",\"params\",\"body\",\"decorators\",\"returnType\",\"typeParameters\"],\"ObjectProperty\":[\"key\",\"value\",\"decorators\"],\"RestElement\":[\"argument\",\"typeAnnotation\"],\"ReturnStatement\":[\"argument\"],\"SequenceExpression\":[\"expressions\"],\"SwitchCase\":[\"test\",\"consequent\"],\"SwitchStatement\":[\"discriminant\",\"cases\"],\"ThisExpression\":[],\"ThrowStatement\":[\"argument\"],\"TryStatement\":[\"block\",\"handler\",\"finalizer\"],\"UnaryExpression\":[\"argument\"],\"UpdateExpression\":[\"argument\"],\"VariableDeclaration\":[\"declarations\"],\"VariableDeclarator\":[\"id\",\"init\"],\"WhileStatement\":[\"test\",\"body\"],\"WithStatement\":[\"object\",\"body\"],\"AssignmentPattern\":[\"left\",\"right\"],\"ArrayPattern\":[\"elements\",\"typeAnnotation\"],\"ArrowFunctionExpression\":[\"params\",\"body\",\"returnType\",\"typeParameters\"],\"ClassBody\":[\"body\"],\"ClassDeclaration\":[\"id\",\"body\",\"superClass\",\"mixins\",\"typeParameters\",\"superTypeParameters\",\"implements\",\"decorators\"],\"ClassExpression\":[\"id\",\"body\",\"superClass\",\"mixins\",\"typeParameters\",\"superTypeParameters\",\"implements\",\"decorators\"],\"ExportAllDeclaration\":[\"source\"],\"ExportDefaultDeclaration\":[\"declaration\"],\"ExportNamedDeclaration\":[\"declaration\",\"specifiers\",\"source\"],\"ExportSpecifier\":[\"local\",\"exported\"],\"ForOfStatement\":[\"left\",\"right\",\"body\"],\"ImportDeclaration\":[\"specifiers\",\"source\"],\"ImportDefaultSpecifier\":[\"local\"],\"ImportNamespaceSpecifier\":[\"local\"],\"ImportSpecifier\":[\"local\",\"imported\"],\"MetaProperty\":[\"meta\",\"property\"],\"ClassMethod\":[\"key\",\"params\",\"body\",\"decorators\",\"returnType\",\"typeParameters\"],\"ObjectPattern\":[\"properties\",\"typeAnnotation\"],\"SpreadElement\":[\"argument\"],\"Super\":[],\"TaggedTemplateExpression\":[\"tag\",\"quasi\"],\"TemplateElement\":[],\"TemplateLiteral\":[\"quasis\",\"expressions\"],\"YieldExpression\":[\"argument\"],\"AnyTypeAnnotation\":[],\"ArrayTypeAnnotation\":[\"elementType\"],\"BooleanTypeAnnotation\":[],\"BooleanLiteralTypeAnnotation\":[],\"NullLiteralTypeAnnotation\":[],\"ClassImplements\":[\"id\",\"typeParameters\"],\"DeclareClass\":[\"id\",\"typeParameters\",\"extends\",\"body\"],\"DeclareFunction\":[\"id\"],\"DeclareInterface\":[\"id\",\"typeParameters\",\"extends\",\"body\"],\"DeclareModule\":[\"id\",\"body\"],\"DeclareModuleExports\":[\"typeAnnotation\"],\"DeclareTypeAlias\":[\"id\",\"typeParameters\",\"right\"],\"DeclareOpaqueType\":[\"id\",\"typeParameters\",\"supertype\"],\"DeclareVariable\":[\"id\"],\"DeclareExportDeclaration\":[\"declaration\",\"specifiers\",\"source\"],\"DeclareExportAllDeclaration\":[\"source\"],\"DeclaredPredicate\":[\"value\"],\"ExistsTypeAnnotation\":[],\"FunctionTypeAnnotation\":[\"typeParameters\",\"params\",\"rest\",\"returnType\"],\"FunctionTypeParam\":[\"name\",\"typeAnnotation\"],\"GenericTypeAnnotation\":[\"id\",\"typeParameters\"],\"InferredPredicate\":[],\"InterfaceExtends\":[\"id\",\"typeParameters\"],\"InterfaceDeclaration\":[\"id\",\"typeParameters\",\"extends\",\"body\"],\"IntersectionTypeAnnotation\":[\"types\"],\"MixedTypeAnnotation\":[],\"EmptyTypeAnnotation\":[],\"NullableTypeAnnotation\":[\"typeAnnotation\"],\"NumberLiteralTypeAnnotation\":[],\"NumberTypeAnnotation\":[],\"ObjectTypeAnnotation\":[\"properties\",\"indexers\",\"callProperties\"],\"ObjectTypeCallProperty\":[\"value\"],\"ObjectTypeIndexer\":[\"id\",\"key\",\"value\"],\"ObjectTypeProperty\":[\"key\",\"value\"],\"ObjectTypeSpreadProperty\":[\"argument\"],\"OpaqueType\":[\"id\",\"typeParameters\",\"supertype\",\"impltype\"],\"QualifiedTypeIdentifier\":[\"id\",\"qualification\"],\"StringLiteralTypeAnnotation\":[],\"StringTypeAnnotation\":[],\"ThisTypeAnnotation\":[],\"TupleTypeAnnotation\":[\"types\"],\"TypeofTypeAnnotation\":[\"argument\"],\"TypeAlias\":[\"id\",\"typeParameters\",\"right\"],\"TypeAnnotation\":[\"typeAnnotation\"],\"TypeCastExpression\":[\"expression\",\"typeAnnotation\"],\"TypeParameter\":[\"bound\",\"default\"],\"TypeParameterDeclaration\":[\"params\"],\"TypeParameterInstantiation\":[\"params\"],\"UnionTypeAnnotation\":[\"types\"],\"VoidTypeAnnotation\":[],\"JSXAttribute\":[\"name\",\"value\"],\"JSXClosingElement\":[\"name\"],\"JSXElement\":[\"openingElement\",\"children\",\"closingElement\"],\"JSXEmptyExpression\":[],\"JSXExpressionContainer\":[\"expression\"],\"JSXSpreadChild\":[\"expression\"],\"JSXIdentifier\":[],\"JSXMemberExpression\":[\"object\",\"property\"],\"JSXNamespacedName\":[\"namespace\",\"name\"],\"JSXOpeningElement\":[\"name\",\"attributes\"],\"JSXSpreadAttribute\":[\"argument\"],\"JSXText\":[],\"JSXFragment\":[\"openingFragment\",\"children\",\"closingFragment\"],\"JSXOpeningFragment\":[],\"JSXClosingFragment\":[],\"Noop\":[],\"ParenthesizedExpression\":[\"expression\"],\"AwaitExpression\":[\"argument\"],\"BindExpression\":[\"object\",\"callee\"],\"ClassProperty\":[\"key\",\"value\",\"typeAnnotation\",\"decorators\"],\"Import\":[],\"Decorator\":[\"expression\"],\"DoExpression\":[\"body\"],\"ExportDefaultSpecifier\":[\"exported\"],\"ExportNamespaceSpecifier\":[\"exported\"],\"TSParameterProperty\":[\"parameter\"],\"TSDeclareFunction\":[\"id\",\"typeParameters\",\"params\",\"returnType\"],\"TSDeclareMethod\":[\"decorators\",\"key\",\"typeParameters\",\"params\",\"returnType\"],\"TSQualifiedName\":[\"left\",\"right\"],\"TSCallSignatureDeclaration\":[\"typeParameters\",\"parameters\",\"typeAnnotation\"],\"TSConstructSignatureDeclaration\":[\"typeParameters\",\"parameters\",\"typeAnnotation\"],\"TSPropertySignature\":[\"key\",\"typeAnnotation\",\"initializer\"],\"TSMethodSignature\":[\"key\",\"typeParameters\",\"parameters\",\"typeAnnotation\"],\"TSIndexSignature\":[\"parameters\",\"typeAnnotation\"],\"TSAnyKeyword\":[],\"TSNumberKeyword\":[],\"TSObjectKeyword\":[],\"TSBooleanKeyword\":[],\"TSStringKeyword\":[],\"TSSymbolKeyword\":[],\"TSVoidKeyword\":[],\"TSUndefinedKeyword\":[],\"TSNullKeyword\":[],\"TSNeverKeyword\":[],\"TSThisType\":[],\"TSFunctionType\":[\"typeParameters\",\"typeAnnotation\"],\"TSConstructorType\":[\"typeParameters\",\"typeAnnotation\"],\"TSTypeReference\":[\"typeName\",\"typeParameters\"],\"TSTypePredicate\":[\"parameterName\",\"typeAnnotation\"],\"TSTypeQuery\":[\"exprName\"],\"TSTypeLiteral\":[\"members\"],\"TSArrayType\":[\"elementType\"],\"TSTupleType\":[\"elementTypes\"],\"TSUnionType\":[\"types\"],\"TSIntersectionType\":[\"types\"],\"TSParenthesizedType\":[\"typeAnnotation\"],\"TSTypeOperator\":[\"typeAnnotation\"],\"TSIndexedAccessType\":[\"objectType\",\"indexType\"],\"TSMappedType\":[\"typeParameter\",\"typeAnnotation\"],\"TSLiteralType\":[\"literal\"],\"TSExpressionWithTypeArguments\":[\"expression\",\"typeParameters\"],\"TSInterfaceDeclaration\":[\"id\",\"typeParameters\",\"extends\",\"body\"],\"TSInterfaceBody\":[\"body\"],\"TSTypeAliasDeclaration\":[\"id\",\"typeParameters\",\"typeAnnotation\"],\"TSAsExpression\":[\"expression\",\"typeAnnotation\"],\"TSTypeAssertion\":[\"typeAnnotation\",\"expression\"],\"TSEnumDeclaration\":[\"id\",\"members\"],\"TSEnumMember\":[\"id\",\"initializer\"],\"TSModuleDeclaration\":[\"id\",\"body\"],\"TSModuleBlock\":[\"body\"],\"TSImportEqualsDeclaration\":[\"id\",\"moduleReference\"],\"TSExternalModuleReference\":[\"expression\"],\"TSNonNullExpression\":[\"expression\"],\"TSExportAssignment\":[\"expression\"],\"TSNamespaceExportDeclaration\":[\"id\"],\"TSTypeAnnotation\":[\"typeAnnotation\"],\"TSTypeParameterInstantiation\":[\"params\"],\"TSTypeParameterDeclaration\":[\"params\"],\"TSTypeParameter\":[\"constraint\",\"default\"]}",
     _powerAssertRecorder = function () { function PowerAssertRecorder() { this.captured = []; } PowerAssertRecorder.prototype._capt = function _capt(value, espath) { this.captured.push({ value: value, espath: espath }); return value; }; PowerAssertRecorder.prototype._expr = function _expr(value, source) { var capturedValues = this.captured; this.captured = []; return { powerAssertContext: { value: value, events: capturedValues }, source: source }; }; return PowerAssertRecorder; }(),
     _rec = new _powerAssertRecorder(),
     _rec2 = new _powerAssertRecorder(),
@@ -8,45 +8,42 @@ var _powerAssertVisitorKeys = '{"ArrayExpression":["elements"],"AssignmentExpres
     _rec4 = new _powerAssertRecorder(),
     _rec5 = new _powerAssertRecorder();
 
-assert(_rec._expr(_rec._capt(new Date(), 'arguments/0'), {
-  content: 'assert(new Date())',
-  filepath: 'test/fixtures/NewExpression/fixture.js',
+assert(_rec._expr(_rec._capt(new Date(), "arguments/0"), {
+  content: "assert(new Date())",
+  filepath: "test/fixtures/NewExpression/fixture.js",
   line: 3,
-  ast: '{"type":"CallExpression","callee":{"type":"Identifier","name":"assert","range":[0,6]},"arguments":[{"type":"NewExpression","callee":{"type":"Identifier","name":"Date","range":[11,15]},"arguments":[],"range":[7,17]}],"range":[0,18]}',
-  tokens: '[{"type":{"label":"name"},"value":"assert","range":[0,6]},{"type":{"label":"("},"range":[6,7]},{"type":{"label":"new"},"value":"new","range":[7,10]},{"type":{"label":"name"},"value":"Date","range":[11,15]},{"type":{"label":"("},"range":[15,16]},{"type":{"label":")"},"range":[16,17]},{"type":{"label":")"},"range":[17,18]}]',
+  ast: "{\"type\":\"CallExpression\",\"callee\":{\"type\":\"Identifier\",\"name\":\"assert\",\"range\":[0,6]},\"arguments\":[{\"type\":\"NewExpression\",\"callee\":{\"type\":\"Identifier\",\"name\":\"Date\",\"range\":[11,15]},\"arguments\":[],\"range\":[7,17]}],\"range\":[0,18]}",
+  tokens: "[{\"type\":{\"label\":\"name\"},\"value\":\"assert\",\"range\":[0,6]},{\"type\":{\"label\":\"(\"},\"range\":[6,7]},{\"type\":{\"label\":\"new\"},\"value\":\"new\",\"range\":[7,10]},{\"type\":{\"label\":\"name\"},\"value\":\"Date\",\"range\":[11,15]},{\"type\":{\"label\":\"(\"},\"range\":[15,16]},{\"type\":{\"label\":\")\"},\"range\":[16,17]},{\"type\":{\"label\":\")\"},\"range\":[17,18]}]",
   visitorKeys: _powerAssertVisitorKeys
 }));
-
-assert(_rec2._expr(_rec2._capt(new (_rec2._capt(_rec2._capt(foo, 'arguments/0/callee/object/object').bar, 'arguments/0/callee/object').Baz)(), 'arguments/0'), {
-  content: 'assert(new foo.bar.Baz())',
-  filepath: 'test/fixtures/NewExpression/fixture.js',
+assert(_rec2._expr(_rec2._capt(new (_rec2._capt(_rec2._capt(foo, "arguments/0/callee/object/object").bar, "arguments/0/callee/object").Baz)(), "arguments/0"), {
+  content: "assert(new foo.bar.Baz())",
+  filepath: "test/fixtures/NewExpression/fixture.js",
   line: 5,
-  ast: '{"type":"CallExpression","callee":{"type":"Identifier","name":"assert","range":[0,6]},"arguments":[{"type":"NewExpression","callee":{"type":"MemberExpression","object":{"type":"MemberExpression","object":{"type":"Identifier","name":"foo","range":[11,14]},"property":{"type":"Identifier","name":"bar","range":[15,18]},"computed":false,"range":[11,18]},"property":{"type":"Identifier","name":"Baz","range":[19,22]},"computed":false,"range":[11,22]},"arguments":[],"range":[7,24]}],"range":[0,25]}',
-  tokens: '[{"type":{"label":"name"},"value":"assert","range":[0,6]},{"type":{"label":"("},"range":[6,7]},{"type":{"label":"new"},"value":"new","range":[7,10]},{"type":{"label":"name"},"value":"foo","range":[11,14]},{"type":{"label":"."},"range":[14,15]},{"type":{"label":"name"},"value":"bar","range":[15,18]},{"type":{"label":"."},"range":[18,19]},{"type":{"label":"name"},"value":"Baz","range":[19,22]},{"type":{"label":"("},"range":[22,23]},{"type":{"label":")"},"range":[23,24]},{"type":{"label":")"},"range":[24,25]}]',
+  ast: "{\"type\":\"CallExpression\",\"callee\":{\"type\":\"Identifier\",\"name\":\"assert\",\"range\":[0,6]},\"arguments\":[{\"type\":\"NewExpression\",\"callee\":{\"type\":\"MemberExpression\",\"object\":{\"type\":\"MemberExpression\",\"object\":{\"type\":\"Identifier\",\"name\":\"foo\",\"range\":[11,14]},\"property\":{\"type\":\"Identifier\",\"name\":\"bar\",\"range\":[15,18]},\"computed\":false,\"range\":[11,18]},\"property\":{\"type\":\"Identifier\",\"name\":\"Baz\",\"range\":[19,22]},\"computed\":false,\"range\":[11,22]},\"arguments\":[],\"range\":[7,24]}],\"range\":[0,25]}",
+  tokens: "[{\"type\":{\"label\":\"name\"},\"value\":\"assert\",\"range\":[0,6]},{\"type\":{\"label\":\"(\"},\"range\":[6,7]},{\"type\":{\"label\":\"new\"},\"value\":\"new\",\"range\":[7,10]},{\"type\":{\"label\":\"name\"},\"value\":\"foo\",\"range\":[11,14]},{\"type\":{\"label\":\".\"},\"range\":[14,15]},{\"type\":{\"label\":\"name\"},\"value\":\"bar\",\"range\":[15,18]},{\"type\":{\"label\":\".\"},\"range\":[18,19]},{\"type\":{\"label\":\"name\"},\"value\":\"Baz\",\"range\":[19,22]},{\"type\":{\"label\":\"(\"},\"range\":[22,23]},{\"type\":{\"label\":\")\"},\"range\":[23,24]},{\"type\":{\"label\":\")\"},\"range\":[24,25]}]",
   visitorKeys: _powerAssertVisitorKeys
 }));
-
-assert(_rec3._expr(_rec3._capt(!_rec3._capt(new Array(_rec3._capt(foo, 'arguments/0/argument/arguments/0'), _rec3._capt(bar, 'arguments/0/argument/arguments/1'), _rec3._capt(baz, 'arguments/0/argument/arguments/2')), 'arguments/0/argument'), 'arguments/0'), {
-  content: 'assert(!new Array(foo, bar, baz))',
-  filepath: 'test/fixtures/NewExpression/fixture.js',
+assert(_rec3._expr(_rec3._capt(!_rec3._capt(new Array(_rec3._capt(foo, "arguments/0/argument/arguments/0"), _rec3._capt(bar, "arguments/0/argument/arguments/1"), _rec3._capt(baz, "arguments/0/argument/arguments/2")), "arguments/0/argument"), "arguments/0"), {
+  content: "assert(!new Array(foo, bar, baz))",
+  filepath: "test/fixtures/NewExpression/fixture.js",
   line: 7,
-  ast: '{"type":"CallExpression","callee":{"type":"Identifier","name":"assert","range":[0,6]},"arguments":[{"type":"UnaryExpression","operator":"!","argument":{"type":"NewExpression","callee":{"type":"Identifier","name":"Array","range":[12,17]},"arguments":[{"type":"Identifier","name":"foo","range":[18,21]},{"type":"Identifier","name":"bar","range":[23,26]},{"type":"Identifier","name":"baz","range":[28,31]}],"range":[8,32]},"prefix":true,"range":[7,32]}],"range":[0,33]}',
-  tokens: '[{"type":{"label":"name"},"value":"assert","range":[0,6]},{"type":{"label":"("},"range":[6,7]},{"type":{"label":"prefix"},"value":"!","range":[7,8]},{"type":{"label":"new"},"value":"new","range":[8,11]},{"type":{"label":"name"},"value":"Array","range":[12,17]},{"type":{"label":"("},"range":[17,18]},{"type":{"label":"name"},"value":"foo","range":[18,21]},{"type":{"label":","},"range":[21,22]},{"type":{"label":"name"},"value":"bar","range":[23,26]},{"type":{"label":","},"range":[26,27]},{"type":{"label":"name"},"value":"baz","range":[28,31]},{"type":{"label":")"},"range":[31,32]},{"type":{"label":")"},"range":[32,33]}]',
+  ast: "{\"type\":\"CallExpression\",\"callee\":{\"type\":\"Identifier\",\"name\":\"assert\",\"range\":[0,6]},\"arguments\":[{\"type\":\"UnaryExpression\",\"operator\":\"!\",\"argument\":{\"type\":\"NewExpression\",\"callee\":{\"type\":\"Identifier\",\"name\":\"Array\",\"range\":[12,17]},\"arguments\":[{\"type\":\"Identifier\",\"name\":\"foo\",\"range\":[18,21]},{\"type\":\"Identifier\",\"name\":\"bar\",\"range\":[23,26]},{\"type\":\"Identifier\",\"name\":\"baz\",\"range\":[28,31]}],\"range\":[8,32]},\"prefix\":true,\"range\":[7,32]}],\"range\":[0,33]}",
+  tokens: "[{\"type\":{\"label\":\"name\"},\"value\":\"assert\",\"range\":[0,6]},{\"type\":{\"label\":\"(\"},\"range\":[6,7]},{\"type\":{\"label\":\"!\"},\"value\":\"!\",\"range\":[7,8]},{\"type\":{\"label\":\"new\"},\"value\":\"new\",\"range\":[8,11]},{\"type\":{\"label\":\"name\"},\"value\":\"Array\",\"range\":[12,17]},{\"type\":{\"label\":\"(\"},\"range\":[17,18]},{\"type\":{\"label\":\"name\"},\"value\":\"foo\",\"range\":[18,21]},{\"type\":{\"label\":\",\"},\"range\":[21,22]},{\"type\":{\"label\":\"name\"},\"value\":\"bar\",\"range\":[23,26]},{\"type\":{\"label\":\",\"},\"range\":[26,27]},{\"type\":{\"label\":\"name\"},\"value\":\"baz\",\"range\":[28,31]},{\"type\":{\"label\":\")\"},\"range\":[31,32]},{\"type\":{\"label\":\")\"},\"range\":[32,33]}]",
   visitorKeys: _powerAssertVisitorKeys
 }));
-
-assert.notEqual(_rec4._expr(_rec4._capt(new Date(), 'arguments/0'), {
-  content: 'assert.notEqual(new Date(), new Date(\'2013-01-12\'))',
-  filepath: 'test/fixtures/NewExpression/fixture.js',
+assert.notEqual(_rec4._expr(_rec4._capt(new Date(), "arguments/0"), {
+  content: "assert.notEqual(new Date(), new Date('2013-01-12'))",
+  filepath: "test/fixtures/NewExpression/fixture.js",
   line: 9,
-  ast: '{"type":"CallExpression","callee":{"type":"MemberExpression","object":{"type":"Identifier","name":"assert","range":[0,6]},"property":{"type":"Identifier","name":"notEqual","range":[7,15]},"computed":false,"range":[0,15]},"arguments":[{"type":"NewExpression","callee":{"type":"Identifier","name":"Date","range":[20,24]},"arguments":[],"range":[16,26]},{"type":"NewExpression","callee":{"type":"Identifier","name":"Date","range":[32,36]},"arguments":[{"type":"StringLiteral","value":"2013-01-12","range":[37,49]}],"range":[28,50]}],"range":[0,51]}',
-  tokens: '[{"type":{"label":"name"},"value":"assert","range":[0,6]},{"type":{"label":"."},"range":[6,7]},{"type":{"label":"name"},"value":"notEqual","range":[7,15]},{"type":{"label":"("},"range":[15,16]},{"type":{"label":"new"},"value":"new","range":[16,19]},{"type":{"label":"name"},"value":"Date","range":[20,24]},{"type":{"label":"("},"range":[24,25]},{"type":{"label":")"},"range":[25,26]},{"type":{"label":","},"range":[26,27]},{"type":{"label":"new"},"value":"new","range":[28,31]},{"type":{"label":"name"},"value":"Date","range":[32,36]},{"type":{"label":"("},"range":[36,37]},{"type":{"label":"string"},"value":"2013-01-12","range":[37,49]},{"type":{"label":")"},"range":[49,50]},{"type":{"label":")"},"range":[50,51]}]',
+  ast: "{\"type\":\"CallExpression\",\"callee\":{\"type\":\"MemberExpression\",\"object\":{\"type\":\"Identifier\",\"name\":\"assert\",\"range\":[0,6]},\"property\":{\"type\":\"Identifier\",\"name\":\"notEqual\",\"range\":[7,15]},\"computed\":false,\"range\":[0,15]},\"arguments\":[{\"type\":\"NewExpression\",\"callee\":{\"type\":\"Identifier\",\"name\":\"Date\",\"range\":[20,24]},\"arguments\":[],\"range\":[16,26]},{\"type\":\"NewExpression\",\"callee\":{\"type\":\"Identifier\",\"name\":\"Date\",\"range\":[32,36]},\"arguments\":[{\"type\":\"StringLiteral\",\"value\":\"2013-01-12\",\"range\":[37,49]}],\"range\":[28,50]}],\"range\":[0,51]}",
+  tokens: "[{\"type\":{\"label\":\"name\"},\"value\":\"assert\",\"range\":[0,6]},{\"type\":{\"label\":\".\"},\"range\":[6,7]},{\"type\":{\"label\":\"name\"},\"value\":\"notEqual\",\"range\":[7,15]},{\"type\":{\"label\":\"(\"},\"range\":[15,16]},{\"type\":{\"label\":\"new\"},\"value\":\"new\",\"range\":[16,19]},{\"type\":{\"label\":\"name\"},\"value\":\"Date\",\"range\":[20,24]},{\"type\":{\"label\":\"(\"},\"range\":[24,25]},{\"type\":{\"label\":\")\"},\"range\":[25,26]},{\"type\":{\"label\":\",\"},\"range\":[26,27]},{\"type\":{\"label\":\"new\"},\"value\":\"new\",\"range\":[28,31]},{\"type\":{\"label\":\"name\"},\"value\":\"Date\",\"range\":[32,36]},{\"type\":{\"label\":\"(\"},\"range\":[36,37]},{\"type\":{\"label\":\"string\"},\"value\":\"2013-01-12\",\"range\":[37,49]},{\"type\":{\"label\":\")\"},\"range\":[49,50]},{\"type\":{\"label\":\")\"},\"range\":[50,51]}]",
   visitorKeys: _powerAssertVisitorKeys
-}), _rec5._expr(_rec5._capt(new Date('2013-01-12'), 'arguments/1'), {
-  content: 'assert.notEqual(new Date(), new Date(\'2013-01-12\'))',
-  filepath: 'test/fixtures/NewExpression/fixture.js',
+}), _rec5._expr(_rec5._capt(new Date('2013-01-12'), "arguments/1"), {
+  content: "assert.notEqual(new Date(), new Date('2013-01-12'))",
+  filepath: "test/fixtures/NewExpression/fixture.js",
   line: 9,
-  ast: '{"type":"CallExpression","callee":{"type":"MemberExpression","object":{"type":"Identifier","name":"assert","range":[0,6]},"property":{"type":"Identifier","name":"notEqual","range":[7,15]},"computed":false,"range":[0,15]},"arguments":[{"type":"NewExpression","callee":{"type":"Identifier","name":"Date","range":[20,24]},"arguments":[],"range":[16,26]},{"type":"NewExpression","callee":{"type":"Identifier","name":"Date","range":[32,36]},"arguments":[{"type":"StringLiteral","value":"2013-01-12","range":[37,49]}],"range":[28,50]}],"range":[0,51]}',
-  tokens: '[{"type":{"label":"name"},"value":"assert","range":[0,6]},{"type":{"label":"."},"range":[6,7]},{"type":{"label":"name"},"value":"notEqual","range":[7,15]},{"type":{"label":"("},"range":[15,16]},{"type":{"label":"new"},"value":"new","range":[16,19]},{"type":{"label":"name"},"value":"Date","range":[20,24]},{"type":{"label":"("},"range":[24,25]},{"type":{"label":")"},"range":[25,26]},{"type":{"label":","},"range":[26,27]},{"type":{"label":"new"},"value":"new","range":[28,31]},{"type":{"label":"name"},"value":"Date","range":[32,36]},{"type":{"label":"("},"range":[36,37]},{"type":{"label":"string"},"value":"2013-01-12","range":[37,49]},{"type":{"label":")"},"range":[49,50]},{"type":{"label":")"},"range":[50,51]}]',
+  ast: "{\"type\":\"CallExpression\",\"callee\":{\"type\":\"MemberExpression\",\"object\":{\"type\":\"Identifier\",\"name\":\"assert\",\"range\":[0,6]},\"property\":{\"type\":\"Identifier\",\"name\":\"notEqual\",\"range\":[7,15]},\"computed\":false,\"range\":[0,15]},\"arguments\":[{\"type\":\"NewExpression\",\"callee\":{\"type\":\"Identifier\",\"name\":\"Date\",\"range\":[20,24]},\"arguments\":[],\"range\":[16,26]},{\"type\":\"NewExpression\",\"callee\":{\"type\":\"Identifier\",\"name\":\"Date\",\"range\":[32,36]},\"arguments\":[{\"type\":\"StringLiteral\",\"value\":\"2013-01-12\",\"range\":[37,49]}],\"range\":[28,50]}],\"range\":[0,51]}",
+  tokens: "[{\"type\":{\"label\":\"name\"},\"value\":\"assert\",\"range\":[0,6]},{\"type\":{\"label\":\".\"},\"range\":[6,7]},{\"type\":{\"label\":\"name\"},\"value\":\"notEqual\",\"range\":[7,15]},{\"type\":{\"label\":\"(\"},\"range\":[15,16]},{\"type\":{\"label\":\"new\"},\"value\":\"new\",\"range\":[16,19]},{\"type\":{\"label\":\"name\"},\"value\":\"Date\",\"range\":[20,24]},{\"type\":{\"label\":\"(\"},\"range\":[24,25]},{\"type\":{\"label\":\")\"},\"range\":[25,26]},{\"type\":{\"label\":\",\"},\"range\":[26,27]},{\"type\":{\"label\":\"new\"},\"value\":\"new\",\"range\":[28,31]},{\"type\":{\"label\":\"name\"},\"value\":\"Date\",\"range\":[32,36]},{\"type\":{\"label\":\"(\"},\"range\":[36,37]},{\"type\":{\"label\":\"string\"},\"value\":\"2013-01-12\",\"range\":[37,49]},{\"type\":{\"label\":\")\"},\"range\":[49,50]},{\"type\":{\"label\":\")\"},\"range\":[50,51]}]",
   visitorKeys: _powerAssertVisitorKeys
 }));
diff --git a/test/fixtures/NewExpression/expected.js b/test/fixtures/NewExpression/expected.js
index c544472..96db9a3 100644
--- a/test/fixtures/NewExpression/expected.js
+++ b/test/fixtures/NewExpression/expected.js
@@ -7,30 +7,27 @@ var _powerAssertRecorder = function () { function PowerAssertRecorder() { this.c
     _rec4 = new _powerAssertRecorder(),
     _rec5 = new _powerAssertRecorder();
 
-assert(_rec._expr(_rec._capt(new Date(), 'arguments/0'), {
-  content: 'assert(new Date())',
-  filepath: 'test/fixtures/NewExpression/fixture.js',
+assert(_rec._expr(_rec._capt(new Date(), "arguments/0"), {
+  content: "assert(new Date())",
+  filepath: "test/fixtures/NewExpression/fixture.js",
   line: 3
 }));
-
-assert(_rec2._expr(_rec2._capt(new (_rec2._capt(_rec2._capt(foo, 'arguments/0/callee/object/object').bar, 'arguments/0/callee/object').Baz)(), 'arguments/0'), {
-  content: 'assert(new foo.bar.Baz())',
-  filepath: 'test/fixtures/NewExpression/fixture.js',
+assert(_rec2._expr(_rec2._capt(new (_rec2._capt(_rec2._capt(foo, "arguments/0/callee/object/object").bar, "arguments/0/callee/object").Baz)(), "arguments/0"), {
+  content: "assert(new foo.bar.Baz())",
+  filepath: "test/fixtures/NewExpression/fixture.js",
   line: 5
 }));
-
-assert(_rec3._expr(_rec3._capt(!_rec3._capt(new Array(_rec3._capt(foo, 'arguments/0/argument/arguments/0'), _rec3._capt(bar, 'arguments/0/argument/arguments/1'), _rec3._capt(baz, 'arguments/0/argument/arguments/2')), 'arguments/0/argument'), 'arguments/0'), {
-  content: 'assert(!new Array(foo, bar, baz))',
-  filepath: 'test/fixtures/NewExpression/fixture.js',
+assert(_rec3._expr(_rec3._capt(!_rec3._capt(new Array(_rec3._capt(foo, "arguments/0/argument/arguments/0"), _rec3._capt(bar, "arguments/0/argument/arguments/1"), _rec3._capt(baz, "arguments/0/argument/arguments/2")), "arguments/0/argument"), "arguments/0"), {
+  content: "assert(!new Array(foo, bar, baz))",
+  filepath: "test/fixtures/NewExpression/fixture.js",
   line: 7
 }));
-
-assert.notEqual(_rec4._expr(_rec4._capt(new Date(), 'arguments/0'), {
-  content: 'assert.notEqual(new Date(), new Date(\'2013-01-12\'))',
-  filepath: 'test/fixtures/NewExpression/fixture.js',
+assert.notEqual(_rec4._expr(_rec4._capt(new Date(), "arguments/0"), {
+  content: "assert.notEqual(new Date(), new Date('2013-01-12'))",
+  filepath: "test/fixtures/NewExpression/fixture.js",
   line: 9
-}), _rec5._expr(_rec5._capt(new Date('2013-01-12'), 'arguments/1'), {
-  content: 'assert.notEqual(new Date(), new Date(\'2013-01-12\'))',
-  filepath: 'test/fixtures/NewExpression/fixture.js',
+}), _rec5._expr(_rec5._capt(new Date('2013-01-12'), "arguments/1"), {
+  content: "assert.notEqual(new Date(), new Date('2013-01-12'))",
+  filepath: "test/fixtures/NewExpression/fixture.js",
   line: 9
 }));
diff --git a/test/fixtures/NonTarget/expected.js b/test/fixtures/NonTarget/expected.js
index bbd45c7..46c1968 100644
--- a/test/fixtures/NonTarget/expected.js
+++ b/test/fixtures/NonTarget/expected.js
@@ -1,5 +1,4 @@
 'use strict';
 
 assert.hoge(falsyStr);
-
 hoge(falsyStr);
diff --git a/test/fixtures/ObjectExpression/expected-presets-es2015.js b/test/fixtures/ObjectExpression/expected-presets-es2015.js
index 486b101..75457dd 100644
--- a/test/fixtures/ObjectExpression/expected-presets-es2015.js
+++ b/test/fixtures/ObjectExpression/expected-presets-es2015.js
@@ -1,42 +1,55 @@
 'use strict';
 
-var _powerAssertVisitorKeys = '{"ArrayExpression":["elements"],"AssignmentExpression":["left","right"],"BinaryExpression":["left","right"],"Directive":["value"],"DirectiveLiteral":[],"BlockStatement":["directives","body"],"BreakStatement":["label"],"CallExpression":["callee","arguments"],"CatchClause":["param","body"],"ConditionalExpression":["test","consequent","alternate"],"ContinueStatement":["label"],"DebuggerStatement":[],"DoWhileStatement":["test","body"],"EmptyStatement":[],"ExpressionStatement":["expression"],"File":["program"],"ForInStatement":["left","right","body"],"ForStatement":["init","test","update","body"],"FunctionDeclaration":["id","params","body","returnType","typeParameters"],"FunctionExpression":["id","params","body","returnType","typeParameters"],"Identifier":["typeAnnotation"],"IfStatement":["test","consequent","alternate"],"LabeledStatement":["label","body"],"StringLiteral":[],"NumericLiteral":[],"NullLiteral":[],"BooleanLiteral":[],"RegExpLiteral":[],"LogicalExpression":["left","right"],"MemberExpression":["object","property"],"NewExpression":["callee","arguments"],"Program":["directives","body"],"ObjectExpression":["properties"],"ObjectMethod":["key","params","body","decorators","returnType","typeParameters"],"ObjectProperty":["key","value","decorators"],"RestElement":["argument","typeAnnotation"],"ReturnStatement":["argument"],"SequenceExpression":["expressions"],"SwitchCase":["test","consequent"],"SwitchStatement":["discriminant","cases"],"ThisExpression":[],"ThrowStatement":["argument"],"TryStatement":["block","handler","finalizer"],"UnaryExpression":["argument"],"UpdateExpression":["argument"],"VariableDeclaration":["declarations"],"VariableDeclarator":["id","init"],"WhileStatement":["test","body"],"WithStatement":["object","body"],"AssignmentPattern":["left","right"],"ArrayPattern":["elements","typeAnnotation"],"ArrowFunctionExpression":["params","body","returnType","typeParameters"],"ClassBody":["body"],"ClassDeclaration":["id","body","superClass","mixins","typeParameters","superTypeParameters","implements","decorators"],"ClassExpression":["id","body","superClass","mixins","typeParameters","superTypeParameters","implements","decorators"],"ExportAllDeclaration":["source"],"ExportDefaultDeclaration":["declaration"],"ExportNamedDeclaration":["declaration","specifiers","source"],"ExportSpecifier":["local","exported"],"ForOfStatement":["left","right","body"],"ImportDeclaration":["specifiers","source"],"ImportDefaultSpecifier":["local"],"ImportNamespaceSpecifier":["local"],"ImportSpecifier":["local","imported"],"MetaProperty":["meta","property"],"ClassMethod":["key","params","body","decorators","returnType","typeParameters"],"ObjectPattern":["properties","typeAnnotation"],"SpreadElement":["argument"],"Super":[],"TaggedTemplateExpression":["tag","quasi"],"TemplateElement":[],"TemplateLiteral":["quasis","expressions"],"YieldExpression":["argument"],"AnyTypeAnnotation":[],"ArrayTypeAnnotation":["elementType"],"BooleanTypeAnnotation":[],"BooleanLiteralTypeAnnotation":[],"NullLiteralTypeAnnotation":[],"ClassImplements":["id","typeParameters"],"ClassProperty":["key","value","typeAnnotation","decorators"],"DeclareClass":["id","typeParameters","extends","body"],"DeclareFunction":["id"],"DeclareInterface":["id","typeParameters","extends","body"],"DeclareModule":["id","body"],"DeclareModuleExports":["typeAnnotation"],"DeclareTypeAlias":["id","typeParameters","right"],"DeclareOpaqueType":["id","typeParameters","supertype"],"DeclareVariable":["id"],"DeclareExportDeclaration":["declaration","specifiers","source"],"ExistentialTypeParam":[],"FunctionTypeAnnotation":["typeParameters","params","rest","returnType"],"FunctionTypeParam":["name","typeAnnotation"],"GenericTypeAnnotation":["id","typeParameters"],"InterfaceExtends":["id","typeParameters"],"InterfaceDeclaration":["id","typeParameters","extends","body"],"IntersectionTypeAnnotation":["types"],"MixedTypeAnnotation":[],"EmptyTypeAnnotation":[],"NullableTypeAnnotation":["typeAnnotation"],"NumericLiteralTypeAnnotation":[],"NumberTypeAnnotation":[],"StringLiteralTypeAnnotation":[],"StringTypeAnnotation":[],"ThisTypeAnnotation":[],"TupleTypeAnnotation":["types"],"TypeofTypeAnnotation":["argument"],"TypeAlias":["id","typeParameters","right"],"OpaqueType":["id","typeParameters","impltype","supertype"],"TypeAnnotation":["typeAnnotation"],"TypeCastExpression":["expression","typeAnnotation"],"TypeParameter":["bound"],"TypeParameterDeclaration":["params"],"TypeParameterInstantiation":["params"],"ObjectTypeAnnotation":["properties","indexers","callProperties"],"ObjectTypeCallProperty":["value"],"ObjectTypeIndexer":["id","key","value"],"ObjectTypeProperty":["key","value"],"ObjectTypeSpreadProperty":["argument"],"QualifiedTypeIdentifier":["id","qualification"],"UnionTypeAnnotation":["types"],"VoidTypeAnnotation":[],"JSXAttribute":["name","value"],"JSXClosingElement":["name"],"JSXElement":["openingElement","children","closingElement"],"JSXEmptyExpression":[],"JSXExpressionContainer":["expression"],"JSXSpreadChild":["expression"],"JSXIdentifier":[],"JSXMemberExpression":["object","property"],"JSXNamespacedName":["namespace","name"],"JSXOpeningElement":["name","attributes"],"JSXSpreadAttribute":["argument"],"JSXText":[],"Noop":[],"ParenthesizedExpression":["expression"],"AwaitExpression":["argument"],"ForAwaitStatement":["left","right","body"],"BindExpression":["object","callee"],"Import":[],"Decorator":["expression"],"DoExpression":["body"],"ExportDefaultSpecifier":["exported"],"ExportNamespaceSpecifier":["exported"],"RestProperty":["argument"],"SpreadProperty":["argument"]}',
+var _powerAssertVisitorKeys = "{\"ArrayExpression\":[\"elements\"],\"AssignmentExpression\":[\"left\",\"right\"],\"BinaryExpression\":[\"left\",\"right\"],\"Directive\":[\"value\"],\"DirectiveLiteral\":[],\"BlockStatement\":[\"directives\",\"body\"],\"BreakStatement\":[\"label\"],\"CallExpression\":[\"callee\",\"arguments\",\"typeParameters\"],\"CatchClause\":[\"param\",\"body\"],\"ConditionalExpression\":[\"test\",\"consequent\",\"alternate\"],\"ContinueStatement\":[\"label\"],\"DebuggerStatement\":[],\"DoWhileStatement\":[\"test\",\"body\"],\"EmptyStatement\":[],\"ExpressionStatement\":[\"expression\"],\"File\":[\"program\"],\"ForInStatement\":[\"left\",\"right\",\"body\"],\"ForStatement\":[\"init\",\"test\",\"update\",\"body\"],\"FunctionDeclaration\":[\"id\",\"params\",\"body\",\"returnType\",\"typeParameters\"],\"FunctionExpression\":[\"id\",\"params\",\"body\",\"returnType\",\"typeParameters\"],\"Identifier\":[\"typeAnnotation\"],\"IfStatement\":[\"test\",\"consequent\",\"alternate\"],\"LabeledStatement\":[\"label\",\"body\"],\"StringLiteral\":[],\"NumericLiteral\":[],\"NullLiteral\":[],\"BooleanLiteral\":[],\"RegExpLiteral\":[],\"LogicalExpression\":[\"left\",\"right\"],\"MemberExpression\":[\"object\",\"property\"],\"NewExpression\":[\"callee\",\"arguments\",\"typeParameters\"],\"Program\":[\"directives\",\"body\"],\"ObjectExpression\":[\"properties\"],\"ObjectMethod\":[\"key\",\"params\",\"body\",\"decorators\",\"returnType\",\"typeParameters\"],\"ObjectProperty\":[\"key\",\"value\",\"decorators\"],\"RestElement\":[\"argument\",\"typeAnnotation\"],\"ReturnStatement\":[\"argument\"],\"SequenceExpression\":[\"expressions\"],\"SwitchCase\":[\"test\",\"consequent\"],\"SwitchStatement\":[\"discriminant\",\"cases\"],\"ThisExpression\":[],\"ThrowStatement\":[\"argument\"],\"TryStatement\":[\"block\",\"handler\",\"finalizer\"],\"UnaryExpression\":[\"argument\"],\"UpdateExpression\":[\"argument\"],\"VariableDeclaration\":[\"declarations\"],\"VariableDeclarator\":[\"id\",\"init\"],\"WhileStatement\":[\"test\",\"body\"],\"WithStatement\":[\"object\",\"body\"],\"AssignmentPattern\":[\"left\",\"right\"],\"ArrayPattern\":[\"elements\",\"typeAnnotation\"],\"ArrowFunctionExpression\":[\"params\",\"body\",\"returnType\",\"typeParameters\"],\"ClassBody\":[\"body\"],\"ClassDeclaration\":[\"id\",\"body\",\"superClass\",\"mixins\",\"typeParameters\",\"superTypeParameters\",\"implements\",\"decorators\"],\"ClassExpression\":[\"id\",\"body\",\"superClass\",\"mixins\",\"typeParameters\",\"superTypeParameters\",\"implements\",\"decorators\"],\"ExportAllDeclaration\":[\"source\"],\"ExportDefaultDeclaration\":[\"declaration\"],\"ExportNamedDeclaration\":[\"declaration\",\"specifiers\",\"source\"],\"ExportSpecifier\":[\"local\",\"exported\"],\"ForOfStatement\":[\"left\",\"right\",\"body\"],\"ImportDeclaration\":[\"specifiers\",\"source\"],\"ImportDefaultSpecifier\":[\"local\"],\"ImportNamespaceSpecifier\":[\"local\"],\"ImportSpecifier\":[\"local\",\"imported\"],\"MetaProperty\":[\"meta\",\"property\"],\"ClassMethod\":[\"key\",\"params\",\"body\",\"decorators\",\"returnType\",\"typeParameters\"],\"ObjectPattern\":[\"properties\",\"typeAnnotation\"],\"SpreadElement\":[\"argument\"],\"Super\":[],\"TaggedTemplateExpression\":[\"tag\",\"quasi\"],\"TemplateElement\":[],\"TemplateLiteral\":[\"quasis\",\"expressions\"],\"YieldExpression\":[\"argument\"],\"AnyTypeAnnotation\":[],\"ArrayTypeAnnotation\":[\"elementType\"],\"BooleanTypeAnnotation\":[],\"BooleanLiteralTypeAnnotation\":[],\"NullLiteralTypeAnnotation\":[],\"ClassImplements\":[\"id\",\"typeParameters\"],\"DeclareClass\":[\"id\",\"typeParameters\",\"extends\",\"body\"],\"DeclareFunction\":[\"id\"],\"DeclareInterface\":[\"id\",\"typeParameters\",\"extends\",\"body\"],\"DeclareModule\":[\"id\",\"body\"],\"DeclareModuleExports\":[\"typeAnnotation\"],\"DeclareTypeAlias\":[\"id\",\"typeParameters\",\"right\"],\"DeclareOpaqueType\":[\"id\",\"typeParameters\",\"supertype\"],\"DeclareVariable\":[\"id\"],\"DeclareExportDeclaration\":[\"declaration\",\"specifiers\",\"source\"],\"DeclareExportAllDeclaration\":[\"source\"],\"DeclaredPredicate\":[\"value\"],\"ExistsTypeAnnotation\":[],\"FunctionTypeAnnotation\":[\"typeParameters\",\"params\",\"rest\",\"returnType\"],\"FunctionTypeParam\":[\"name\",\"typeAnnotation\"],\"GenericTypeAnnotation\":[\"id\",\"typeParameters\"],\"InferredPredicate\":[],\"InterfaceExtends\":[\"id\",\"typeParameters\"],\"InterfaceDeclaration\":[\"id\",\"typeParameters\",\"extends\",\"body\"],\"IntersectionTypeAnnotation\":[\"types\"],\"MixedTypeAnnotation\":[],\"EmptyTypeAnnotation\":[],\"NullableTypeAnnotation\":[\"typeAnnotation\"],\"NumberLiteralTypeAnnotation\":[],\"NumberTypeAnnotation\":[],\"ObjectTypeAnnotation\":[\"properties\",\"indexers\",\"callProperties\"],\"ObjectTypeCallProperty\":[\"value\"],\"ObjectTypeIndexer\":[\"id\",\"key\",\"value\"],\"ObjectTypeProperty\":[\"key\",\"value\"],\"ObjectTypeSpreadProperty\":[\"argument\"],\"OpaqueType\":[\"id\",\"typeParameters\",\"supertype\",\"impltype\"],\"QualifiedTypeIdentifier\":[\"id\",\"qualification\"],\"StringLiteralTypeAnnotation\":[],\"StringTypeAnnotation\":[],\"ThisTypeAnnotation\":[],\"TupleTypeAnnotation\":[\"types\"],\"TypeofTypeAnnotation\":[\"argument\"],\"TypeAlias\":[\"id\",\"typeParameters\",\"right\"],\"TypeAnnotation\":[\"typeAnnotation\"],\"TypeCastExpression\":[\"expression\",\"typeAnnotation\"],\"TypeParameter\":[\"bound\",\"default\"],\"TypeParameterDeclaration\":[\"params\"],\"TypeParameterInstantiation\":[\"params\"],\"UnionTypeAnnotation\":[\"types\"],\"VoidTypeAnnotation\":[],\"JSXAttribute\":[\"name\",\"value\"],\"JSXClosingElement\":[\"name\"],\"JSXElement\":[\"openingElement\",\"children\",\"closingElement\"],\"JSXEmptyExpression\":[],\"JSXExpressionContainer\":[\"expression\"],\"JSXSpreadChild\":[\"expression\"],\"JSXIdentifier\":[],\"JSXMemberExpression\":[\"object\",\"property\"],\"JSXNamespacedName\":[\"namespace\",\"name\"],\"JSXOpeningElement\":[\"name\",\"attributes\"],\"JSXSpreadAttribute\":[\"argument\"],\"JSXText\":[],\"JSXFragment\":[\"openingFragment\",\"children\",\"closingFragment\"],\"JSXOpeningFragment\":[],\"JSXClosingFragment\":[],\"Noop\":[],\"ParenthesizedExpression\":[\"expression\"],\"AwaitExpression\":[\"argument\"],\"BindExpression\":[\"object\",\"callee\"],\"ClassProperty\":[\"key\",\"value\",\"typeAnnotation\",\"decorators\"],\"Import\":[],\"Decorator\":[\"expression\"],\"DoExpression\":[\"body\"],\"ExportDefaultSpecifier\":[\"exported\"],\"ExportNamespaceSpecifier\":[\"exported\"],\"TSParameterProperty\":[\"parameter\"],\"TSDeclareFunction\":[\"id\",\"typeParameters\",\"params\",\"returnType\"],\"TSDeclareMethod\":[\"decorators\",\"key\",\"typeParameters\",\"params\",\"returnType\"],\"TSQualifiedName\":[\"left\",\"right\"],\"TSCallSignatureDeclaration\":[\"typeParameters\",\"parameters\",\"typeAnnotation\"],\"TSConstructSignatureDeclaration\":[\"typeParameters\",\"parameters\",\"typeAnnotation\"],\"TSPropertySignature\":[\"key\",\"typeAnnotation\",\"initializer\"],\"TSMethodSignature\":[\"key\",\"typeParameters\",\"parameters\",\"typeAnnotation\"],\"TSIndexSignature\":[\"parameters\",\"typeAnnotation\"],\"TSAnyKeyword\":[],\"TSNumberKeyword\":[],\"TSObjectKeyword\":[],\"TSBooleanKeyword\":[],\"TSStringKeyword\":[],\"TSSymbolKeyword\":[],\"TSVoidKeyword\":[],\"TSUndefinedKeyword\":[],\"TSNullKeyword\":[],\"TSNeverKeyword\":[],\"TSThisType\":[],\"TSFunctionType\":[\"typeParameters\",\"typeAnnotation\"],\"TSConstructorType\":[\"typeParameters\",\"typeAnnotation\"],\"TSTypeReference\":[\"typeName\",\"typeParameters\"],\"TSTypePredicate\":[\"parameterName\",\"typeAnnotation\"],\"TSTypeQuery\":[\"exprName\"],\"TSTypeLiteral\":[\"members\"],\"TSArrayType\":[\"elementType\"],\"TSTupleType\":[\"elementTypes\"],\"TSUnionType\":[\"types\"],\"TSIntersectionType\":[\"types\"],\"TSParenthesizedType\":[\"typeAnnotation\"],\"TSTypeOperator\":[\"typeAnnotation\"],\"TSIndexedAccessType\":[\"objectType\",\"indexType\"],\"TSMappedType\":[\"typeParameter\",\"typeAnnotation\"],\"TSLiteralType\":[\"literal\"],\"TSExpressionWithTypeArguments\":[\"expression\",\"typeParameters\"],\"TSInterfaceDeclaration\":[\"id\",\"typeParameters\",\"extends\",\"body\"],\"TSInterfaceBody\":[\"body\"],\"TSTypeAliasDeclaration\":[\"id\",\"typeParameters\",\"typeAnnotation\"],\"TSAsExpression\":[\"expression\",\"typeAnnotation\"],\"TSTypeAssertion\":[\"typeAnnotation\",\"expression\"],\"TSEnumDeclaration\":[\"id\",\"members\"],\"TSEnumMember\":[\"id\",\"initializer\"],\"TSModuleDeclaration\":[\"id\",\"body\"],\"TSModuleBlock\":[\"body\"],\"TSImportEqualsDeclaration\":[\"id\",\"moduleReference\"],\"TSExternalModuleReference\":[\"expression\"],\"TSNonNullExpression\":[\"expression\"],\"TSExportAssignment\":[\"expression\"],\"TSNamespaceExportDeclaration\":[\"id\"],\"TSTypeAnnotation\":[\"typeAnnotation\"],\"TSTypeParameterInstantiation\":[\"params\"],\"TSTypeParameterDeclaration\":[\"params\"],\"TSTypeParameter\":[\"constraint\",\"default\"]}",
     _powerAssertRecorder = function () { function PowerAssertRecorder() { this.captured = []; } PowerAssertRecorder.prototype._capt = function _capt(value, espath) { this.captured.push({ value: value, espath: espath }); return value; }; PowerAssertRecorder.prototype._expr = function _expr(value, source) { var capturedValues = this.captured; this.captured = []; return { powerAssertContext: { value: value, events: capturedValues }, source: source }; }; return PowerAssertRecorder; }(),
     _rec = new _powerAssertRecorder(),
     _rec2 = new _powerAssertRecorder(),
     _rec3 = new _powerAssertRecorder(),
     _rec4 = new _powerAssertRecorder();
 
-assert(_rec._expr(_rec._capt({ foo: _rec._capt(bar, 'arguments/0/properties/0/value'), hoge: _rec._capt(fuga, 'arguments/0/properties/1/value') }, 'arguments/0'), {
-  content: 'assert({ foo: bar, hoge: fuga })',
-  filepath: 'test/fixtures/ObjectExpression/fixture.js',
+assert(_rec._expr(_rec._capt({
+  foo: _rec._capt(bar, "arguments/0/properties/0/value"),
+  hoge: _rec._capt(fuga, "arguments/0/properties/1/value")
+}, "arguments/0"), {
+  content: "assert({ foo: bar, hoge: fuga })",
+  filepath: "test/fixtures/ObjectExpression/fixture.js",
   line: 3,
-  ast: '{"type":"CallExpression","callee":{"type":"Identifier","name":"assert","range":[0,6]},"arguments":[{"type":"ObjectExpression","properties":[{"type":"ObjectProperty","key":{"type":"Identifier","name":"foo","range":[9,12]},"value":{"type":"Identifier","name":"bar","range":[14,17]},"computed":false,"shorthand":false,"range":[9,17]},{"type":"ObjectProperty","key":{"type":"Identifier","name":"hoge","range":[19,23]},"value":{"type":"Identifier","name":"fuga","range":[25,29]},"computed":false,"shorthand":false,"range":[19,29]}],"range":[7,31]}],"range":[0,32]}',
-  tokens: '[{"type":{"label":"name"},"value":"assert","range":[0,6]},{"type":{"label":"("},"range":[6,7]},{"type":{"label":"{"},"range":[7,8]},{"type":{"label":"name"},"value":"foo","range":[9,12]},{"type":{"label":":"},"range":[12,13]},{"type":{"label":"name"},"value":"bar","range":[14,17]},{"type":{"label":","},"range":[17,18]},{"type":{"label":"name"},"value":"hoge","range":[19,23]},{"type":{"label":":"},"range":[23,24]},{"type":{"label":"name"},"value":"fuga","range":[25,29]},{"type":{"label":"}"},"range":[30,31]},{"type":{"label":")"},"range":[31,32]}]',
+  ast: "{\"type\":\"CallExpression\",\"callee\":{\"type\":\"Identifier\",\"name\":\"assert\",\"range\":[0,6]},\"arguments\":[{\"type\":\"ObjectExpression\",\"properties\":[{\"type\":\"ObjectProperty\",\"key\":{\"type\":\"Identifier\",\"name\":\"foo\",\"range\":[9,12]},\"value\":{\"type\":\"Identifier\",\"name\":\"bar\",\"range\":[14,17]},\"computed\":false,\"shorthand\":false,\"range\":[9,17]},{\"type\":\"ObjectProperty\",\"key\":{\"type\":\"Identifier\",\"name\":\"hoge\",\"range\":[19,23]},\"value\":{\"type\":\"Identifier\",\"name\":\"fuga\",\"range\":[25,29]},\"computed\":false,\"shorthand\":false,\"range\":[19,29]}],\"range\":[7,31]}],\"range\":[0,32]}",
+  tokens: "[{\"type\":{\"label\":\"name\"},\"value\":\"assert\",\"range\":[0,6]},{\"type\":{\"label\":\"(\"},\"range\":[6,7]},{\"type\":{\"label\":\"{\"},\"range\":[7,8]},{\"type\":{\"label\":\"name\"},\"value\":\"foo\",\"range\":[9,12]},{\"type\":{\"label\":\":\"},\"range\":[12,13]},{\"type\":{\"label\":\"name\"},\"value\":\"bar\",\"range\":[14,17]},{\"type\":{\"label\":\",\"},\"range\":[17,18]},{\"type\":{\"label\":\"name\"},\"value\":\"hoge\",\"range\":[19,23]},{\"type\":{\"label\":\":\"},\"range\":[23,24]},{\"type\":{\"label\":\"name\"},\"value\":\"fuga\",\"range\":[25,29]},{\"type\":{\"label\":\"}\"},\"range\":[30,31]},{\"type\":{\"label\":\")\"},\"range\":[31,32]}]",
   visitorKeys: _powerAssertVisitorKeys
 }));
-
-assert(_rec2._expr(_rec2._capt(!_rec2._capt({ foo: _rec2._capt(_rec2._capt(bar, 'arguments/0/argument/properties/0/value/object').baz, 'arguments/0/argument/properties/0/value'), name: _rec2._capt(nameOf(_rec2._capt({ firstName: _rec2._capt(first, 'arguments/0/argument/properties/1/value/arguments/0/properties/0/value'), lastName: _rec2._capt(last, 'arguments/0/argument/properties/1/value/arguments/0/properties/1/value') }, 'arguments/0/argument/properties/1/value/arguments/0')), 'arguments/0/argument/properties/1/value') }, 'arguments/0/argument'), 'arguments/0'), {
-  content: 'assert(!{ foo: bar.baz, name: nameOf({ firstName: first, lastName: last }) })',
-  filepath: 'test/fixtures/ObjectExpression/fixture.js',
+assert(_rec2._expr(_rec2._capt(!_rec2._capt({
+  foo: _rec2._capt(_rec2._capt(bar, "arguments/0/argument/properties/0/value/object").baz, "arguments/0/argument/properties/0/value"),
+  name: _rec2._capt(nameOf(_rec2._capt({
+    firstName: _rec2._capt(first, "arguments/0/argument/properties/1/value/arguments/0/properties/0/value"),
+    lastName: _rec2._capt(last, "arguments/0/argument/properties/1/value/arguments/0/properties/1/value")
+  }, "arguments/0/argument/properties/1/value/arguments/0")), "arguments/0/argument/properties/1/value")
+}, "arguments/0/argument"), "arguments/0"), {
+  content: "assert(!{ foo: bar.baz, name: nameOf({ firstName: first, lastName: last }) })",
+  filepath: "test/fixtures/ObjectExpression/fixture.js",
   line: 5,
-  ast: '{"type":"CallExpression","callee":{"type":"Identifier","name":"assert","range":[0,6]},"arguments":[{"type":"UnaryExpression","operator":"!","argument":{"type":"ObjectExpression","properties":[{"type":"ObjectProperty","key":{"type":"Identifier","name":"foo","range":[10,13]},"value":{"type":"MemberExpression","object":{"type":"Identifier","name":"bar","range":[15,18]},"property":{"type":"Identifier","name":"baz","range":[19,22]},"computed":false,"range":[15,22]},"computed":false,"shorthand":false,"range":[10,22]},{"type":"ObjectProperty","key":{"type":"Identifier","name":"name","range":[24,28]},"value":{"type":"CallExpression","callee":{"type":"Identifier","name":"nameOf","range":[30,36]},"arguments":[{"type":"ObjectExpression","properties":[{"type":"ObjectProperty","key":{"type":"Identifier","name":"firstName","range":[39,48]},"value":{"type":"Identifier","name":"first","range":[50,55]},"computed":false,"shorthand":false,"range":[39,55]},{"type":"ObjectProperty","key":{"type":"Identifier","name":"lastName","range":[57,65]},"value":{"type":"Identifier","name":"last","range":[67,71]},"computed":false,"shorthand":false,"range":[57,71]}],"range":[37,73]}],"range":[30,74]},"computed":false,"shorthand":false,"range":[24,74]}],"range":[8,76]},"prefix":true,"range":[7,76]}],"range":[0,77]}',
-  tokens: '[{"type":{"label":"name"},"value":"assert","range":[0,6]},{"type":{"label":"("},"range":[6,7]},{"type":{"label":"prefix"},"value":"!","range":[7,8]},{"type":{"label":"{"},"range":[8,9]},{"type":{"label":"name"},"value":"foo","range":[10,13]},{"type":{"label":":"},"range":[13,14]},{"type":{"label":"name"},"value":"bar","range":[15,18]},{"type":{"label":"."},"range":[18,19]},{"type":{"label":"name"},"value":"baz","range":[19,22]},{"type":{"label":","},"range":[22,23]},{"type":{"label":"name"},"value":"name","range":[24,28]},{"type":{"label":":"},"range":[28,29]},{"type":{"label":"name"},"value":"nameOf","range":[30,36]},{"type":{"label":"("},"range":[36,37]},{"type":{"label":"{"},"range":[37,38]},{"type":{"label":"name"},"value":"firstName","range":[39,48]},{"type":{"label":":"},"range":[48,49]},{"type":{"label":"name"},"value":"first","range":[50,55]},{"type":{"label":","},"range":[55,56]},{"type":{"label":"name"},"value":"lastName","range":[57,65]},{"type":{"label":":"},"range":[65,66]},{"type":{"label":"name"},"value":"last","range":[67,71]},{"type":{"label":"}"},"range":[72,73]},{"type":{"label":")"},"range":[73,74]},{"type":{"label":"}"},"range":[75,76]},{"type":{"label":")"},"range":[76,77]}]',
+  ast: "{\"type\":\"CallExpression\",\"callee\":{\"type\":\"Identifier\",\"name\":\"assert\",\"range\":[0,6]},\"arguments\":[{\"type\":\"UnaryExpression\",\"operator\":\"!\",\"argument\":{\"type\":\"ObjectExpression\",\"properties\":[{\"type\":\"ObjectProperty\",\"key\":{\"type\":\"Identifier\",\"name\":\"foo\",\"range\":[10,13]},\"value\":{\"type\":\"MemberExpression\",\"object\":{\"type\":\"Identifier\",\"name\":\"bar\",\"range\":[15,18]},\"property\":{\"type\":\"Identifier\",\"name\":\"baz\",\"range\":[19,22]},\"computed\":false,\"range\":[15,22]},\"computed\":false,\"shorthand\":false,\"range\":[10,22]},{\"type\":\"ObjectProperty\",\"key\":{\"type\":\"Identifier\",\"name\":\"name\",\"range\":[24,28]},\"value\":{\"type\":\"CallExpression\",\"callee\":{\"type\":\"Identifier\",\"name\":\"nameOf\",\"range\":[30,36]},\"arguments\":[{\"type\":\"ObjectExpression\",\"properties\":[{\"type\":\"ObjectProperty\",\"key\":{\"type\":\"Identifier\",\"name\":\"firstName\",\"range\":[39,48]},\"value\":{\"type\":\"Identifier\",\"name\":\"first\",\"range\":[50,55]},\"computed\":false,\"shorthand\":false,\"range\":[39,55]},{\"type\":\"ObjectProperty\",\"key\":{\"type\":\"Identifier\",\"name\":\"lastName\",\"range\":[57,65]},\"value\":{\"type\":\"Identifier\",\"name\":\"last\",\"range\":[67,71]},\"computed\":false,\"shorthand\":false,\"range\":[57,71]}],\"range\":[37,73]}],\"range\":[30,74]},\"computed\":false,\"shorthand\":false,\"range\":[24,74]}],\"range\":[8,76]},\"prefix\":true,\"range\":[7,76]}],\"range\":[0,77]}",
+  tokens: "[{\"type\":{\"label\":\"name\"},\"value\":\"assert\",\"range\":[0,6]},{\"type\":{\"label\":\"(\"},\"range\":[6,7]},{\"type\":{\"label\":\"!\"},\"value\":\"!\",\"range\":[7,8]},{\"type\":{\"label\":\"{\"},\"range\":[8,9]},{\"type\":{\"label\":\"name\"},\"value\":\"foo\",\"range\":[10,13]},{\"type\":{\"label\":\":\"},\"range\":[13,14]},{\"type\":{\"label\":\"name\"},\"value\":\"bar\",\"range\":[15,18]},{\"type\":{\"label\":\".\"},\"range\":[18,19]},{\"type\":{\"label\":\"name\"},\"value\":\"baz\",\"range\":[19,22]},{\"type\":{\"label\":\",\"},\"range\":[22,23]},{\"type\":{\"label\":\"name\"},\"value\":\"name\",\"range\":[24,28]},{\"type\":{\"label\":\":\"},\"range\":[28,29]},{\"type\":{\"label\":\"name\"},\"value\":\"nameOf\",\"range\":[30,36]},{\"type\":{\"label\":\"(\"},\"range\":[36,37]},{\"type\":{\"label\":\"{\"},\"range\":[37,38]},{\"type\":{\"label\":\"name\"},\"value\":\"firstName\",\"range\":[39,48]},{\"type\":{\"label\":\":\"},\"range\":[48,49]},{\"type\":{\"label\":\"name\"},\"value\":\"first\",\"range\":[50,55]},{\"type\":{\"label\":\",\"},\"range\":[55,56]},{\"type\":{\"label\":\"name\"},\"value\":\"lastName\",\"range\":[57,65]},{\"type\":{\"label\":\":\"},\"range\":[65,66]},{\"type\":{\"label\":\"name\"},\"value\":\"last\",\"range\":[67,71]},{\"type\":{\"label\":\"}\"},\"range\":[72,73]},{\"type\":{\"label\":\")\"},\"range\":[73,74]},{\"type\":{\"label\":\"}\"},\"range\":[75,76]},{\"type\":{\"label\":\")\"},\"range\":[76,77]}]",
   visitorKeys: _powerAssertVisitorKeys
 }));
-
-assert.deepEqual(_rec3._expr(_rec3._capt({ foo: _rec3._capt(bar, 'arguments/0/properties/0/value'), hoge: _rec3._capt(fuga, 'arguments/0/properties/1/value') }, 'arguments/0'), {
-  content: 'assert.deepEqual({ foo: bar, hoge: fuga }, { hoge: fuga, foo: bar })',
-  filepath: 'test/fixtures/ObjectExpression/fixture.js',
+assert.deepEqual(_rec3._expr(_rec3._capt({
+  foo: _rec3._capt(bar, "arguments/0/properties/0/value"),
+  hoge: _rec3._capt(fuga, "arguments/0/properties/1/value")
+}, "arguments/0"), {
+  content: "assert.deepEqual({ foo: bar, hoge: fuga }, { hoge: fuga, foo: bar })",
+  filepath: "test/fixtures/ObjectExpression/fixture.js",
   line: 7,
-  ast: '{"type":"CallExpression","callee":{"type":"MemberExpression","object":{"type":"Identifier","name":"assert","range":[0,6]},"property":{"type":"Identifier","name":"deepEqual","range":[7,16]},"computed":false,"range":[0,16]},"arguments":[{"type":"ObjectExpression","properties":[{"type":"ObjectProperty","key":{"type":"Identifier","name":"foo","range":[19,22]},"value":{"type":"Identifier","name":"bar","range":[24,27]},"computed":false,"shorthand":false,"range":[19,27]},{"type":"ObjectProperty","key":{"type":"Identifier","name":"hoge","range":[29,33]},"value":{"type":"Identifier","name":"fuga","range":[35,39]},"computed":false,"shorthand":false,"range":[29,39]}],"range":[17,41]},{"type":"ObjectExpression","properties":[{"type":"ObjectProperty","key":{"type":"Identifier","name":"hoge","range":[45,49]},"value":{"type":"Identifier","name":"fuga","range":[51,55]},"computed":false,"shorthand":false,"range":[45,55]},{"type":"ObjectProperty","key":{"type":"Identifier","name":"foo","range":[57,60]},"value":{"type":"Identifier","name":"bar","range":[62,65]},"computed":false,"shorthand":false,"range":[57,65]}],"range":[43,67]}],"range":[0,68]}',
-  tokens: '[{"type":{"label":"name"},"value":"assert","range":[0,6]},{"type":{"label":"."},"range":[6,7]},{"type":{"label":"name"},"value":"deepEqual","range":[7,16]},{"type":{"label":"("},"range":[16,17]},{"type":{"label":"{"},"range":[17,18]},{"type":{"label":"name"},"value":"foo","range":[19,22]},{"type":{"label":":"},"range":[22,23]},{"type":{"label":"name"},"value":"bar","range":[24,27]},{"type":{"label":","},"range":[27,28]},{"type":{"label":"name"},"value":"hoge","range":[29,33]},{"type":{"label":":"},"range":[33,34]},{"type":{"label":"name"},"value":"fuga","range":[35,39]},{"type":{"label":"}"},"range":[40,41]},{"type":{"label":","},"range":[41,42]},{"type":{"label":"{"},"range":[43,44]},{"type":{"label":"name"},"value":"hoge","range":[45,49]},{"type":{"label":":"},"range":[49,50]},{"type":{"label":"name"},"value":"fuga","range":[51,55]},{"type":{"label":","},"range":[55,56]},{"type":{"label":"name"},"value":"foo","range":[57,60]},{"type":{"label":":"},"range":[60,61]},{"type":{"label":"name"},"value":"bar","range":[62,65]},{"type":{"label":"}"},"range":[66,67]},{"type":{"label":")"},"range":[67,68]}]',
+  ast: "{\"type\":\"CallExpression\",\"callee\":{\"type\":\"MemberExpression\",\"object\":{\"type\":\"Identifier\",\"name\":\"assert\",\"range\":[0,6]},\"property\":{\"type\":\"Identifier\",\"name\":\"deepEqual\",\"range\":[7,16]},\"computed\":false,\"range\":[0,16]},\"arguments\":[{\"type\":\"ObjectExpression\",\"properties\":[{\"type\":\"ObjectProperty\",\"key\":{\"type\":\"Identifier\",\"name\":\"foo\",\"range\":[19,22]},\"value\":{\"type\":\"Identifier\",\"name\":\"bar\",\"range\":[24,27]},\"computed\":false,\"shorthand\":false,\"range\":[19,27]},{\"type\":\"ObjectProperty\",\"key\":{\"type\":\"Identifier\",\"name\":\"hoge\",\"range\":[29,33]},\"value\":{\"type\":\"Identifier\",\"name\":\"fuga\",\"range\":[35,39]},\"computed\":false,\"shorthand\":false,\"range\":[29,39]}],\"range\":[17,41]},{\"type\":\"ObjectExpression\",\"properties\":[{\"type\":\"ObjectProperty\",\"key\":{\"type\":\"Identifier\",\"name\":\"hoge\",\"range\":[45,49]},\"value\":{\"type\":\"Identifier\",\"name\":\"fuga\",\"range\":[51,55]},\"computed\":false,\"shorthand\":false,\"range\":[45,55]},{\"type\":\"ObjectProperty\",\"key\":{\"type\":\"Identifier\",\"name\":\"foo\",\"range\":[57,60]},\"value\":{\"type\":\"Identifier\",\"name\":\"bar\",\"range\":[62,65]},\"computed\":false,\"shorthand\":false,\"range\":[57,65]}],\"range\":[43,67]}],\"range\":[0,68]}",
+  tokens: "[{\"type\":{\"label\":\"name\"},\"value\":\"assert\",\"range\":[0,6]},{\"type\":{\"label\":\".\"},\"range\":[6,7]},{\"type\":{\"label\":\"name\"},\"value\":\"deepEqual\",\"range\":[7,16]},{\"type\":{\"label\":\"(\"},\"range\":[16,17]},{\"type\":{\"label\":\"{\"},\"range\":[17,18]},{\"type\":{\"label\":\"name\"},\"value\":\"foo\",\"range\":[19,22]},{\"type\":{\"label\":\":\"},\"range\":[22,23]},{\"type\":{\"label\":\"name\"},\"value\":\"bar\",\"range\":[24,27]},{\"type\":{\"label\":\",\"},\"range\":[27,28]},{\"type\":{\"label\":\"name\"},\"value\":\"hoge\",\"range\":[29,33]},{\"type\":{\"label\":\":\"},\"range\":[33,34]},{\"type\":{\"label\":\"name\"},\"value\":\"fuga\",\"range\":[35,39]},{\"type\":{\"label\":\"}\"},\"range\":[40,41]},{\"type\":{\"label\":\",\"},\"range\":[41,42]},{\"type\":{\"label\":\"{\"},\"range\":[43,44]},{\"type\":{\"label\":\"name\"},\"value\":\"hoge\",\"range\":[45,49]},{\"type\":{\"label\":\":\"},\"range\":[49,50]},{\"type\":{\"label\":\"name\"},\"value\":\"fuga\",\"range\":[51,55]},{\"type\":{\"label\":\",\"},\"range\":[55,56]},{\"type\":{\"label\":\"name\"},\"value\":\"foo\",\"range\":[57,60]},{\"type\":{\"label\":\":\"},\"range\":[60,61]},{\"type\":{\"label\":\"name\"},\"value\":\"bar\",\"range\":[62,65]},{\"type\":{\"label\":\"}\"},\"range\":[66,67]},{\"type\":{\"label\":\")\"},\"range\":[67,68]}]",
   visitorKeys: _powerAssertVisitorKeys
-}), _rec4._expr(_rec4._capt({ hoge: _rec4._capt(fuga, 'arguments/1/properties/0/value'), foo: _rec4._capt(bar, 'arguments/1/properties/1/value') }, 'arguments/1'), {
-  content: 'assert.deepEqual({ foo: bar, hoge: fuga }, { hoge: fuga, foo: bar })',
-  filepath: 'test/fixtures/ObjectExpression/fixture.js',
+}), _rec4._expr(_rec4._capt({
+  hoge: _rec4._capt(fuga, "arguments/1/properties/0/value"),
+  foo: _rec4._capt(bar, "arguments/1/properties/1/value")
+}, "arguments/1"), {
+  content: "assert.deepEqual({ foo: bar, hoge: fuga }, { hoge: fuga, foo: bar })",
+  filepath: "test/fixtures/ObjectExpression/fixture.js",
   line: 7,
-  ast: '{"type":"CallExpression","callee":{"type":"MemberExpression","object":{"type":"Identifier","name":"assert","range":[0,6]},"property":{"type":"Identifier","name":"deepEqual","range":[7,16]},"computed":false,"range":[0,16]},"arguments":[{"type":"ObjectExpression","properties":[{"type":"ObjectProperty","key":{"type":"Identifier","name":"foo","range":[19,22]},"value":{"type":"Identifier","name":"bar","range":[24,27]},"computed":false,"shorthand":false,"range":[19,27]},{"type":"ObjectProperty","key":{"type":"Identifier","name":"hoge","range":[29,33]},"value":{"type":"Identifier","name":"fuga","range":[35,39]},"computed":false,"shorthand":false,"range":[29,39]}],"range":[17,41]},{"type":"ObjectExpression","properties":[{"type":"ObjectProperty","key":{"type":"Identifier","name":"hoge","range":[45,49]},"value":{"type":"Identifier","name":"fuga","range":[51,55]},"computed":false,"shorthand":false,"range":[45,55]},{"type":"ObjectProperty","key":{"type":"Identifier","name":"foo","range":[57,60]},"value":{"type":"Identifier","name":"bar","range":[62,65]},"computed":false,"shorthand":false,"range":[57,65]}],"range":[43,67]}],"range":[0,68]}',
-  tokens: '[{"type":{"label":"name"},"value":"assert","range":[0,6]},{"type":{"label":"."},"range":[6,7]},{"type":{"label":"name"},"value":"deepEqual","range":[7,16]},{"type":{"label":"("},"range":[16,17]},{"type":{"label":"{"},"range":[17,18]},{"type":{"label":"name"},"value":"foo","range":[19,22]},{"type":{"label":":"},"range":[22,23]},{"type":{"label":"name"},"value":"bar","range":[24,27]},{"type":{"label":","},"range":[27,28]},{"type":{"label":"name"},"value":"hoge","range":[29,33]},{"type":{"label":":"},"range":[33,34]},{"type":{"label":"name"},"value":"fuga","range":[35,39]},{"type":{"label":"}"},"range":[40,41]},{"type":{"label":","},"range":[41,42]},{"type":{"label":"{"},"range":[43,44]},{"type":{"label":"name"},"value":"hoge","range":[45,49]},{"type":{"label":":"},"range":[49,50]},{"type":{"label":"name"},"value":"fuga","range":[51,55]},{"type":{"label":","},"range":[55,56]},{"type":{"label":"name"},"value":"foo","range":[57,60]},{"type":{"label":":"},"range":[60,61]},{"type":{"label":"name"},"value":"bar","range":[62,65]},{"type":{"label":"}"},"range":[66,67]},{"type":{"label":")"},"range":[67,68]}]',
+  ast: "{\"type\":\"CallExpression\",\"callee\":{\"type\":\"MemberExpression\",\"object\":{\"type\":\"Identifier\",\"name\":\"assert\",\"range\":[0,6]},\"property\":{\"type\":\"Identifier\",\"name\":\"deepEqual\",\"range\":[7,16]},\"computed\":false,\"range\":[0,16]},\"arguments\":[{\"type\":\"ObjectExpression\",\"properties\":[{\"type\":\"ObjectProperty\",\"key\":{\"type\":\"Identifier\",\"name\":\"foo\",\"range\":[19,22]},\"value\":{\"type\":\"Identifier\",\"name\":\"bar\",\"range\":[24,27]},\"computed\":false,\"shorthand\":false,\"range\":[19,27]},{\"type\":\"ObjectProperty\",\"key\":{\"type\":\"Identifier\",\"name\":\"hoge\",\"range\":[29,33]},\"value\":{\"type\":\"Identifier\",\"name\":\"fuga\",\"range\":[35,39]},\"computed\":false,\"shorthand\":false,\"range\":[29,39]}],\"range\":[17,41]},{\"type\":\"ObjectExpression\",\"properties\":[{\"type\":\"ObjectProperty\",\"key\":{\"type\":\"Identifier\",\"name\":\"hoge\",\"range\":[45,49]},\"value\":{\"type\":\"Identifier\",\"name\":\"fuga\",\"range\":[51,55]},\"computed\":false,\"shorthand\":false,\"range\":[45,55]},{\"type\":\"ObjectProperty\",\"key\":{\"type\":\"Identifier\",\"name\":\"foo\",\"range\":[57,60]},\"value\":{\"type\":\"Identifier\",\"name\":\"bar\",\"range\":[62,65]},\"computed\":false,\"shorthand\":false,\"range\":[57,65]}],\"range\":[43,67]}],\"range\":[0,68]}",
+  tokens: "[{\"type\":{\"label\":\"name\"},\"value\":\"assert\",\"range\":[0,6]},{\"type\":{\"label\":\".\"},\"range\":[6,7]},{\"type\":{\"label\":\"name\"},\"value\":\"deepEqual\",\"range\":[7,16]},{\"type\":{\"label\":\"(\"},\"range\":[16,17]},{\"type\":{\"label\":\"{\"},\"range\":[17,18]},{\"type\":{\"label\":\"name\"},\"value\":\"foo\",\"range\":[19,22]},{\"type\":{\"label\":\":\"},\"range\":[22,23]},{\"type\":{\"label\":\"name\"},\"value\":\"bar\",\"range\":[24,27]},{\"type\":{\"label\":\",\"},\"range\":[27,28]},{\"type\":{\"label\":\"name\"},\"value\":\"hoge\",\"range\":[29,33]},{\"type\":{\"label\":\":\"},\"range\":[33,34]},{\"type\":{\"label\":\"name\"},\"value\":\"fuga\",\"range\":[35,39]},{\"type\":{\"label\":\"}\"},\"range\":[40,41]},{\"type\":{\"label\":\",\"},\"range\":[41,42]},{\"type\":{\"label\":\"{\"},\"range\":[43,44]},{\"type\":{\"label\":\"name\"},\"value\":\"hoge\",\"range\":[45,49]},{\"type\":{\"label\":\":\"},\"range\":[49,50]},{\"type\":{\"label\":\"name\"},\"value\":\"fuga\",\"range\":[51,55]},{\"type\":{\"label\":\",\"},\"range\":[55,56]},{\"type\":{\"label\":\"name\"},\"value\":\"foo\",\"range\":[57,60]},{\"type\":{\"label\":\":\"},\"range\":[60,61]},{\"type\":{\"label\":\"name\"},\"value\":\"bar\",\"range\":[62,65]},{\"type\":{\"label\":\"}\"},\"range\":[66,67]},{\"type\":{\"label\":\")\"},\"range\":[67,68]}]",
   visitorKeys: _powerAssertVisitorKeys
 }));
diff --git a/test/fixtures/ObjectExpression/expected.js b/test/fixtures/ObjectExpression/expected.js
index 5e06a36..9a0e299 100644
--- a/test/fixtures/ObjectExpression/expected.js
+++ b/test/fixtures/ObjectExpression/expected.js
@@ -6,24 +6,37 @@ var _powerAssertRecorder = function () { function PowerAssertRecorder() { this.c
     _rec3 = new _powerAssertRecorder(),
     _rec4 = new _powerAssertRecorder();
 
-assert(_rec._expr(_rec._capt({ foo: _rec._capt(bar, 'arguments/0/properties/0/value'), hoge: _rec._capt(fuga, 'arguments/0/properties/1/value') }, 'arguments/0'), {
-  content: 'assert({ foo: bar, hoge: fuga })',
-  filepath: 'test/fixtures/ObjectExpression/fixture.js',
+assert(_rec._expr(_rec._capt({
+  foo: _rec._capt(bar, "arguments/0/properties/0/value"),
+  hoge: _rec._capt(fuga, "arguments/0/properties/1/value")
+}, "arguments/0"), {
+  content: "assert({ foo: bar, hoge: fuga })",
+  filepath: "test/fixtures/ObjectExpression/fixture.js",
   line: 3
 }));
-
-assert(_rec2._expr(_rec2._capt(!_rec2._capt({ foo: _rec2._capt(_rec2._capt(bar, 'arguments/0/argument/properties/0/value/object').baz, 'arguments/0/argument/properties/0/value'), name: _rec2._capt(nameOf(_rec2._capt({ firstName: _rec2._capt(first, 'arguments/0/argument/properties/1/value/arguments/0/properties/0/value'), lastName: _rec2._capt(last, 'arguments/0/argument/properties/1/value/arguments/0/properties/1/value') }, 'arguments/0/argument/properties/1/value/arguments/0')), 'arguments/0/argument/properties/1/value') }, 'arguments/0/argument'), 'arguments/0'), {
-  content: 'assert(!{ foo: bar.baz, name: nameOf({ firstName: first, lastName: last }) })',
-  filepath: 'test/fixtures/ObjectExpression/fixture.js',
+assert(_rec2._expr(_rec2._capt(!_rec2._capt({
+  foo: _rec2._capt(_rec2._capt(bar, "arguments/0/argument/properties/0/value/object").baz, "arguments/0/argument/properties/0/value"),
+  name: _rec2._capt(nameOf(_rec2._capt({
+    firstName: _rec2._capt(first, "arguments/0/argument/properties/1/value/arguments/0/properties/0/value"),
+    lastName: _rec2._capt(last, "arguments/0/argument/properties/1/value/arguments/0/properties/1/value")
+  }, "arguments/0/argument/properties/1/value/arguments/0")), "arguments/0/argument/properties/1/value")
+}, "arguments/0/argument"), "arguments/0"), {
+  content: "assert(!{ foo: bar.baz, name: nameOf({ firstName: first, lastName: last }) })",
+  filepath: "test/fixtures/ObjectExpression/fixture.js",
   line: 5
 }));
-
-assert.deepEqual(_rec3._expr(_rec3._capt({ foo: _rec3._capt(bar, 'arguments/0/properties/0/value'), hoge: _rec3._capt(fuga, 'arguments/0/properties/1/value') }, 'arguments/0'), {
-  content: 'assert.deepEqual({ foo: bar, hoge: fuga }, { hoge: fuga, foo: bar })',
-  filepath: 'test/fixtures/ObjectExpression/fixture.js',
+assert.deepEqual(_rec3._expr(_rec3._capt({
+  foo: _rec3._capt(bar, "arguments/0/properties/0/value"),
+  hoge: _rec3._capt(fuga, "arguments/0/properties/1/value")
+}, "arguments/0"), {
+  content: "assert.deepEqual({ foo: bar, hoge: fuga }, { hoge: fuga, foo: bar })",
+  filepath: "test/fixtures/ObjectExpression/fixture.js",
   line: 7
-}), _rec4._expr(_rec4._capt({ hoge: _rec4._capt(fuga, 'arguments/1/properties/0/value'), foo: _rec4._capt(bar, 'arguments/1/properties/1/value') }, 'arguments/1'), {
-  content: 'assert.deepEqual({ foo: bar, hoge: fuga }, { hoge: fuga, foo: bar })',
-  filepath: 'test/fixtures/ObjectExpression/fixture.js',
+}), _rec4._expr(_rec4._capt({
+  hoge: _rec4._capt(fuga, "arguments/1/properties/0/value"),
+  foo: _rec4._capt(bar, "arguments/1/properties/1/value")
+}, "arguments/1"), {
+  content: "assert.deepEqual({ foo: bar, hoge: fuga }, { hoge: fuga, foo: bar })",
+  filepath: "test/fixtures/ObjectExpression/fixture.js",
   line: 7
 }));
diff --git a/test/fixtures/ObjectRestSpread/expected-presets-stage-2.js b/test/fixtures/ObjectRestSpread/expected-presets-stage-2.js
index 2cdb321..90e4452 100644
--- a/test/fixtures/ObjectRestSpread/expected-presets-stage-2.js
+++ b/test/fixtures/ObjectRestSpread/expected-presets-stage-2.js
@@ -1,16 +1,16 @@
 'use strict';
 
-var _extends = Object.assign || function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; };
-
-var _powerAssertVisitorKeys = '{"ArrayExpression":["elements"],"AssignmentExpression":["left","right"],"BinaryExpression":["left","right"],"Directive":["value"],"DirectiveLiteral":[],"BlockStatement":["directives","body"],"BreakStatement":["label"],"CallExpression":["callee","arguments"],"CatchClause":["param","body"],"ConditionalExpression":["test","consequent","alternate"],"ContinueStatement":["label"],"DebuggerStatement":[],"DoWhileStatement":["test","body"],"EmptyStatement":[],"ExpressionStatement":["expression"],"File":["program"],"ForInStatement":["left","right","body"],"ForStatement":["init","test","update","body"],"FunctionDeclaration":["id","params","body","returnType","typeParameters"],"FunctionExpression":["id","params","body","returnType","typeParameters"],"Identifier":["typeAnnotation"],"IfStatement":["test","consequent","alternate"],"LabeledStatement":["label","body"],"StringLiteral":[],"NumericLiteral":[],"NullLiteral":[],"BooleanLiteral":[],"RegExpLiteral":[],"LogicalExpression":["left","right"],"MemberExpression":["object","property"],"NewExpression":["callee","arguments"],"Program":["directives","body"],"ObjectExpression":["properties"],"ObjectMethod":["key","params","body","decorators","returnType","typeParameters"],"ObjectProperty":["key","value","decorators"],"RestElement":["argument","typeAnnotation"],"ReturnStatement":["argument"],"SequenceExpression":["expressions"],"SwitchCase":["test","consequent"],"SwitchStatement":["discriminant","cases"],"ThisExpression":[],"ThrowStatement":["argument"],"TryStatement":["block","handler","finalizer"],"UnaryExpression":["argument"],"UpdateExpression":["argument"],"VariableDeclaration":["declarations"],"VariableDeclarator":["id","init"],"WhileStatement":["test","body"],"WithStatement":["object","body"],"AssignmentPattern":["left","right"],"ArrayPattern":["elements","typeAnnotation"],"ArrowFunctionExpression":["params","body","returnType","typeParameters"],"ClassBody":["body"],"ClassDeclaration":["id","body","superClass","mixins","typeParameters","superTypeParameters","implements","decorators"],"ClassExpression":["id","body","superClass","mixins","typeParameters","superTypeParameters","implements","decorators"],"ExportAllDeclaration":["source"],"ExportDefaultDeclaration":["declaration"],"ExportNamedDeclaration":["declaration","specifiers","source"],"ExportSpecifier":["local","exported"],"ForOfStatement":["left","right","body"],"ImportDeclaration":["specifiers","source"],"ImportDefaultSpecifier":["local"],"ImportNamespaceSpecifier":["local"],"ImportSpecifier":["local","imported"],"MetaProperty":["meta","property"],"ClassMethod":["key","params","body","decorators","returnType","typeParameters"],"ObjectPattern":["properties","typeAnnotation"],"SpreadElement":["argument"],"Super":[],"TaggedTemplateExpression":["tag","quasi"],"TemplateElement":[],"TemplateLiteral":["quasis","expressions"],"YieldExpression":["argument"],"AnyTypeAnnotation":[],"ArrayTypeAnnotation":["elementType"],"BooleanTypeAnnotation":[],"BooleanLiteralTypeAnnotation":[],"NullLiteralTypeAnnotation":[],"ClassImplements":["id","typeParameters"],"ClassProperty":["key","value","typeAnnotation","decorators"],"DeclareClass":["id","typeParameters","extends","body"],"DeclareFunction":["id"],"DeclareInterface":["id","typeParameters","extends","body"],"DeclareModule":["id","body"],"DeclareModuleExports":["typeAnnotation"],"DeclareTypeAlias":["id","typeParameters","right"],"DeclareOpaqueType":["id","typeParameters","supertype"],"DeclareVariable":["id"],"DeclareExportDeclaration":["declaration","specifiers","source"],"ExistentialTypeParam":[],"FunctionTypeAnnotation":["typeParameters","params","rest","returnType"],"FunctionTypeParam":["name","typeAnnotation"],"GenericTypeAnnotation":["id","typeParameters"],"InterfaceExtends":["id","typeParameters"],"InterfaceDeclaration":["id","typeParameters","extends","body"],"IntersectionTypeAnnotation":["types"],"MixedTypeAnnotation":[],"EmptyTypeAnnotation":[],"NullableTypeAnnotation":["typeAnnotation"],"NumericLiteralTypeAnnotation":[],"NumberTypeAnnotation":[],"StringLiteralTypeAnnotation":[],"StringTypeAnnotation":[],"ThisTypeAnnotation":[],"TupleTypeAnnotation":["types"],"TypeofTypeAnnotation":["argument"],"TypeAlias":["id","typeParameters","right"],"OpaqueType":["id","typeParameters","impltype","supertype"],"TypeAnnotation":["typeAnnotation"],"TypeCastExpression":["expression","typeAnnotation"],"TypeParameter":["bound"],"TypeParameterDeclaration":["params"],"TypeParameterInstantiation":["params"],"ObjectTypeAnnotation":["properties","indexers","callProperties"],"ObjectTypeCallProperty":["value"],"ObjectTypeIndexer":["id","key","value"],"ObjectTypeProperty":["key","value"],"ObjectTypeSpreadProperty":["argument"],"QualifiedTypeIdentifier":["id","qualification"],"UnionTypeAnnotation":["types"],"VoidTypeAnnotation":[],"JSXAttribute":["name","value"],"JSXClosingElement":["name"],"JSXElement":["openingElement","children","closingElement"],"JSXEmptyExpression":[],"JSXExpressionContainer":["expression"],"JSXSpreadChild":["expression"],"JSXIdentifier":[],"JSXMemberExpression":["object","property"],"JSXNamespacedName":["namespace","name"],"JSXOpeningElement":["name","attributes"],"JSXSpreadAttribute":["argument"],"JSXText":[],"Noop":[],"ParenthesizedExpression":["expression"],"AwaitExpression":["argument"],"ForAwaitStatement":["left","right","body"],"BindExpression":["object","callee"],"Import":[],"Decorator":["expression"],"DoExpression":["body"],"ExportDefaultSpecifier":["exported"],"ExportNamespaceSpecifier":["exported"],"RestProperty":["argument"],"SpreadProperty":["argument"]}',
+var _powerAssertVisitorKeys = "{\"ArrayExpression\":[\"elements\"],\"AssignmentExpression\":[\"left\",\"right\"],\"BinaryExpression\":[\"left\",\"right\"],\"Directive\":[\"value\"],\"DirectiveLiteral\":[],\"BlockStatement\":[\"directives\",\"body\"],\"BreakStatement\":[\"label\"],\"CallExpression\":[\"callee\",\"arguments\",\"typeParameters\"],\"CatchClause\":[\"param\",\"body\"],\"ConditionalExpression\":[\"test\",\"consequent\",\"alternate\"],\"ContinueStatement\":[\"label\"],\"DebuggerStatement\":[],\"DoWhileStatement\":[\"test\",\"body\"],\"EmptyStatement\":[],\"ExpressionStatement\":[\"expression\"],\"File\":[\"program\"],\"ForInStatement\":[\"left\",\"right\",\"body\"],\"ForStatement\":[\"init\",\"test\",\"update\",\"body\"],\"FunctionDeclaration\":[\"id\",\"params\",\"body\",\"returnType\",\"typeParameters\"],\"FunctionExpression\":[\"id\",\"params\",\"body\",\"returnType\",\"typeParameters\"],\"Identifier\":[\"typeAnnotation\"],\"IfStatement\":[\"test\",\"consequent\",\"alternate\"],\"LabeledStatement\":[\"label\",\"body\"],\"StringLiteral\":[],\"NumericLiteral\":[],\"NullLiteral\":[],\"BooleanLiteral\":[],\"RegExpLiteral\":[],\"LogicalExpression\":[\"left\",\"right\"],\"MemberExpression\":[\"object\",\"property\"],\"NewExpression\":[\"callee\",\"arguments\",\"typeParameters\"],\"Program\":[\"directives\",\"body\"],\"ObjectExpression\":[\"properties\"],\"ObjectMethod\":[\"key\",\"params\",\"body\",\"decorators\",\"returnType\",\"typeParameters\"],\"ObjectProperty\":[\"key\",\"value\",\"decorators\"],\"RestElement\":[\"argument\",\"typeAnnotation\"],\"ReturnStatement\":[\"argument\"],\"SequenceExpression\":[\"expressions\"],\"SwitchCase\":[\"test\",\"consequent\"],\"SwitchStatement\":[\"discriminant\",\"cases\"],\"ThisExpression\":[],\"ThrowStatement\":[\"argument\"],\"TryStatement\":[\"block\",\"handler\",\"finalizer\"],\"UnaryExpression\":[\"argument\"],\"UpdateExpression\":[\"argument\"],\"VariableDeclaration\":[\"declarations\"],\"VariableDeclarator\":[\"id\",\"init\"],\"WhileStatement\":[\"test\",\"body\"],\"WithStatement\":[\"object\",\"body\"],\"AssignmentPattern\":[\"left\",\"right\"],\"ArrayPattern\":[\"elements\",\"typeAnnotation\"],\"ArrowFunctionExpression\":[\"params\",\"body\",\"returnType\",\"typeParameters\"],\"ClassBody\":[\"body\"],\"ClassDeclaration\":[\"id\",\"body\",\"superClass\",\"mixins\",\"typeParameters\",\"superTypeParameters\",\"implements\",\"decorators\"],\"ClassExpression\":[\"id\",\"body\",\"superClass\",\"mixins\",\"typeParameters\",\"superTypeParameters\",\"implements\",\"decorators\"],\"ExportAllDeclaration\":[\"source\"],\"ExportDefaultDeclaration\":[\"declaration\"],\"ExportNamedDeclaration\":[\"declaration\",\"specifiers\",\"source\"],\"ExportSpecifier\":[\"local\",\"exported\"],\"ForOfStatement\":[\"left\",\"right\",\"body\"],\"ImportDeclaration\":[\"specifiers\",\"source\"],\"ImportDefaultSpecifier\":[\"local\"],\"ImportNamespaceSpecifier\":[\"local\"],\"ImportSpecifier\":[\"local\",\"imported\"],\"MetaProperty\":[\"meta\",\"property\"],\"ClassMethod\":[\"key\",\"params\",\"body\",\"decorators\",\"returnType\",\"typeParameters\"],\"ObjectPattern\":[\"properties\",\"typeAnnotation\"],\"SpreadElement\":[\"argument\"],\"Super\":[],\"TaggedTemplateExpression\":[\"tag\",\"quasi\"],\"TemplateElement\":[],\"TemplateLiteral\":[\"quasis\",\"expressions\"],\"YieldExpression\":[\"argument\"],\"AnyTypeAnnotation\":[],\"ArrayTypeAnnotation\":[\"elementType\"],\"BooleanTypeAnnotation\":[],\"BooleanLiteralTypeAnnotation\":[],\"NullLiteralTypeAnnotation\":[],\"ClassImplements\":[\"id\",\"typeParameters\"],\"DeclareClass\":[\"id\",\"typeParameters\",\"extends\",\"body\"],\"DeclareFunction\":[\"id\"],\"DeclareInterface\":[\"id\",\"typeParameters\",\"extends\",\"body\"],\"DeclareModule\":[\"id\",\"body\"],\"DeclareModuleExports\":[\"typeAnnotation\"],\"DeclareTypeAlias\":[\"id\",\"typeParameters\",\"right\"],\"DeclareOpaqueType\":[\"id\",\"typeParameters\",\"supertype\"],\"DeclareVariable\":[\"id\"],\"DeclareExportDeclaration\":[\"declaration\",\"specifiers\",\"source\"],\"DeclareExportAllDeclaration\":[\"source\"],\"DeclaredPredicate\":[\"value\"],\"ExistsTypeAnnotation\":[],\"FunctionTypeAnnotation\":[\"typeParameters\",\"params\",\"rest\",\"returnType\"],\"FunctionTypeParam\":[\"name\",\"typeAnnotation\"],\"GenericTypeAnnotation\":[\"id\",\"typeParameters\"],\"InferredPredicate\":[],\"InterfaceExtends\":[\"id\",\"typeParameters\"],\"InterfaceDeclaration\":[\"id\",\"typeParameters\",\"extends\",\"body\"],\"IntersectionTypeAnnotation\":[\"types\"],\"MixedTypeAnnotation\":[],\"EmptyTypeAnnotation\":[],\"NullableTypeAnnotation\":[\"typeAnnotation\"],\"NumberLiteralTypeAnnotation\":[],\"NumberTypeAnnotation\":[],\"ObjectTypeAnnotation\":[\"properties\",\"indexers\",\"callProperties\"],\"ObjectTypeCallProperty\":[\"value\"],\"ObjectTypeIndexer\":[\"id\",\"key\",\"value\"],\"ObjectTypeProperty\":[\"key\",\"value\"],\"ObjectTypeSpreadProperty\":[\"argument\"],\"OpaqueType\":[\"id\",\"typeParameters\",\"supertype\",\"impltype\"],\"QualifiedTypeIdentifier\":[\"id\",\"qualification\"],\"StringLiteralTypeAnnotation\":[],\"StringTypeAnnotation\":[],\"ThisTypeAnnotation\":[],\"TupleTypeAnnotation\":[\"types\"],\"TypeofTypeAnnotation\":[\"argument\"],\"TypeAlias\":[\"id\",\"typeParameters\",\"right\"],\"TypeAnnotation\":[\"typeAnnotation\"],\"TypeCastExpression\":[\"expression\",\"typeAnnotation\"],\"TypeParameter\":[\"bound\",\"default\"],\"TypeParameterDeclaration\":[\"params\"],\"TypeParameterInstantiation\":[\"params\"],\"UnionTypeAnnotation\":[\"types\"],\"VoidTypeAnnotation\":[],\"JSXAttribute\":[\"name\",\"value\"],\"JSXClosingElement\":[\"name\"],\"JSXElement\":[\"openingElement\",\"children\",\"closingElement\"],\"JSXEmptyExpression\":[],\"JSXExpressionContainer\":[\"expression\"],\"JSXSpreadChild\":[\"expression\"],\"JSXIdentifier\":[],\"JSXMemberExpression\":[\"object\",\"property\"],\"JSXNamespacedName\":[\"namespace\",\"name\"],\"JSXOpeningElement\":[\"name\",\"attributes\"],\"JSXSpreadAttribute\":[\"argument\"],\"JSXText\":[],\"JSXFragment\":[\"openingFragment\",\"children\",\"closingFragment\"],\"JSXOpeningFragment\":[],\"JSXClosingFragment\":[],\"Noop\":[],\"ParenthesizedExpression\":[\"expression\"],\"AwaitExpression\":[\"argument\"],\"BindExpression\":[\"object\",\"callee\"],\"ClassProperty\":[\"key\",\"value\",\"typeAnnotation\",\"decorators\"],\"Import\":[],\"Decorator\":[\"expression\"],\"DoExpression\":[\"body\"],\"ExportDefaultSpecifier\":[\"exported\"],\"ExportNamespaceSpecifier\":[\"exported\"],\"TSParameterProperty\":[\"parameter\"],\"TSDeclareFunction\":[\"id\",\"typeParameters\",\"params\",\"returnType\"],\"TSDeclareMethod\":[\"decorators\",\"key\",\"typeParameters\",\"params\",\"returnType\"],\"TSQualifiedName\":[\"left\",\"right\"],\"TSCallSignatureDeclaration\":[\"typeParameters\",\"parameters\",\"typeAnnotation\"],\"TSConstructSignatureDeclaration\":[\"typeParameters\",\"parameters\",\"typeAnnotation\"],\"TSPropertySignature\":[\"key\",\"typeAnnotation\",\"initializer\"],\"TSMethodSignature\":[\"key\",\"typeParameters\",\"parameters\",\"typeAnnotation\"],\"TSIndexSignature\":[\"parameters\",\"typeAnnotation\"],\"TSAnyKeyword\":[],\"TSNumberKeyword\":[],\"TSObjectKeyword\":[],\"TSBooleanKeyword\":[],\"TSStringKeyword\":[],\"TSSymbolKeyword\":[],\"TSVoidKeyword\":[],\"TSUndefinedKeyword\":[],\"TSNullKeyword\":[],\"TSNeverKeyword\":[],\"TSThisType\":[],\"TSFunctionType\":[\"typeParameters\",\"typeAnnotation\"],\"TSConstructorType\":[\"typeParameters\",\"typeAnnotation\"],\"TSTypeReference\":[\"typeName\",\"typeParameters\"],\"TSTypePredicate\":[\"parameterName\",\"typeAnnotation\"],\"TSTypeQuery\":[\"exprName\"],\"TSTypeLiteral\":[\"members\"],\"TSArrayType\":[\"elementType\"],\"TSTupleType\":[\"elementTypes\"],\"TSUnionType\":[\"types\"],\"TSIntersectionType\":[\"types\"],\"TSParenthesizedType\":[\"typeAnnotation\"],\"TSTypeOperator\":[\"typeAnnotation\"],\"TSIndexedAccessType\":[\"objectType\",\"indexType\"],\"TSMappedType\":[\"typeParameter\",\"typeAnnotation\"],\"TSLiteralType\":[\"literal\"],\"TSExpressionWithTypeArguments\":[\"expression\",\"typeParameters\"],\"TSInterfaceDeclaration\":[\"id\",\"typeParameters\",\"extends\",\"body\"],\"TSInterfaceBody\":[\"body\"],\"TSTypeAliasDeclaration\":[\"id\",\"typeParameters\",\"typeAnnotation\"],\"TSAsExpression\":[\"expression\",\"typeAnnotation\"],\"TSTypeAssertion\":[\"typeAnnotation\",\"expression\"],\"TSEnumDeclaration\":[\"id\",\"members\"],\"TSEnumMember\":[\"id\",\"initializer\"],\"TSModuleDeclaration\":[\"id\",\"body\"],\"TSModuleBlock\":[\"body\"],\"TSImportEqualsDeclaration\":[\"id\",\"moduleReference\"],\"TSExternalModuleReference\":[\"expression\"],\"TSNonNullExpression\":[\"expression\"],\"TSExportAssignment\":[\"expression\"],\"TSNamespaceExportDeclaration\":[\"id\"],\"TSTypeAnnotation\":[\"typeAnnotation\"],\"TSTypeParameterInstantiation\":[\"params\"],\"TSTypeParameterDeclaration\":[\"params\"],\"TSTypeParameter\":[\"constraint\",\"default\"]}",
     _powerAssertRecorder = function () { function PowerAssertRecorder() { this.captured = []; } PowerAssertRecorder.prototype._capt = function _capt(value, espath) { this.captured.push({ value: value, espath: espath }); return value; }; PowerAssertRecorder.prototype._expr = function _expr(value, source) { var capturedValues = this.captured; this.captured = []; return { powerAssertContext: { value: value, events: capturedValues }, source: source }; }; return PowerAssertRecorder; }(),
     _rec = new _powerAssertRecorder();
 
-assert(_rec._expr(_rec._capt(_rec._capt(obj, 'arguments/0/left') == _rec._capt(_extends({}, obj), 'arguments/0/right'), 'arguments/0'), {
-  content: 'assert(obj == { ...obj })',
-  filepath: 'test/fixtures/ObjectRestSpread/fixture.js',
+function _extends() { _extends = Object.assign || function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; }; return _extends.apply(this, arguments); }
+
+assert(_rec._expr(_rec._capt(_rec._capt(obj, "arguments/0/left") == _rec._capt(_extends({}, _rec._capt(obj, "arguments/0/right/properties/0/argument")), "arguments/0/right"), "arguments/0"), {
+  content: "assert(obj == { ...obj })",
+  filepath: "test/fixtures/ObjectRestSpread/fixture.js",
   line: 3,
-  ast: '{"type":"CallExpression","callee":{"type":"Identifier","name":"assert","range":[0,6]},"arguments":[{"type":"BinaryExpression","operator":"==","left":{"type":"Identifier","name":"obj","range":[7,10]},"right":{"type":"ObjectExpression","properties":[{"type":"SpreadProperty","argument":{"type":"Identifier","name":"obj","range":[19,22]},"range":[16,22]}],"range":[14,24]},"range":[7,24]}],"range":[0,25]}',
-  tokens: '[{"type":{"label":"name"},"value":"assert","range":[0,6]},{"type":{"label":"("},"range":[6,7]},{"type":{"label":"name"},"value":"obj","range":[7,10]},{"type":{"label":"==/!="},"value":"==","range":[11,13]},{"type":{"label":"{"},"range":[14,15]},{"type":{"label":"..."},"range":[16,19]},{"type":{"label":"name"},"value":"obj","range":[19,22]},{"type":{"label":"}"},"range":[23,24]},{"type":{"label":")"},"range":[24,25]}]',
+  ast: "{\"type\":\"CallExpression\",\"callee\":{\"type\":\"Identifier\",\"name\":\"assert\",\"range\":[0,6]},\"arguments\":[{\"type\":\"BinaryExpression\",\"operator\":\"==\",\"left\":{\"type\":\"Identifier\",\"name\":\"obj\",\"range\":[7,10]},\"right\":{\"type\":\"ObjectExpression\",\"properties\":[{\"type\":\"SpreadElement\",\"argument\":{\"type\":\"Identifier\",\"name\":\"obj\",\"range\":[19,22]},\"range\":[16,22]}],\"range\":[14,24]},\"range\":[7,24]}],\"range\":[0,25]}",
+  tokens: "[{\"type\":{\"label\":\"name\"},\"value\":\"assert\",\"range\":[0,6]},{\"type\":{\"label\":\"(\"},\"range\":[6,7]},{\"type\":{\"label\":\"name\"},\"value\":\"obj\",\"range\":[7,10]},{\"type\":{\"label\":\"==/!=\"},\"value\":\"==\",\"range\":[11,13]},{\"type\":{\"label\":\"{\"},\"range\":[14,15]},{\"type\":{\"label\":\"...\"},\"range\":[16,19]},{\"type\":{\"label\":\"name\"},\"value\":\"obj\",\"range\":[19,22]},{\"type\":{\"label\":\"}\"},\"range\":[23,24]},{\"type\":{\"label\":\")\"},\"range\":[24,25]}]",
   visitorKeys: _powerAssertVisitorKeys
 }));
diff --git a/test/fixtures/Property/expected-presets-es2015.js b/test/fixtures/Property/expected-presets-es2015.js
index a130928..dd554c0 100644
--- a/test/fixtures/Property/expected-presets-es2015.js
+++ b/test/fixtures/Property/expected-presets-es2015.js
@@ -1,6 +1,6 @@
 'use strict';
 
-var _powerAssertVisitorKeys = '{"ArrayExpression":["elements"],"AssignmentExpression":["left","right"],"BinaryExpression":["left","right"],"Directive":["value"],"DirectiveLiteral":[],"BlockStatement":["directives","body"],"BreakStatement":["label"],"CallExpression":["callee","arguments"],"CatchClause":["param","body"],"ConditionalExpression":["test","consequent","alternate"],"ContinueStatement":["label"],"DebuggerStatement":[],"DoWhileStatement":["test","body"],"EmptyStatement":[],"ExpressionStatement":["expression"],"File":["program"],"ForInStatement":["left","right","body"],"ForStatement":["init","test","update","body"],"FunctionDeclaration":["id","params","body","returnType","typeParameters"],"FunctionExpression":["id","params","body","returnType","typeParameters"],"Identifier":["typeAnnotation"],"IfStatement":["test","consequent","alternate"],"LabeledStatement":["label","body"],"StringLiteral":[],"NumericLiteral":[],"NullLiteral":[],"BooleanLiteral":[],"RegExpLiteral":[],"LogicalExpression":["left","right"],"MemberExpression":["object","property"],"NewExpression":["callee","arguments"],"Program":["directives","body"],"ObjectExpression":["properties"],"ObjectMethod":["key","params","body","decorators","returnType","typeParameters"],"ObjectProperty":["key","value","decorators"],"RestElement":["argument","typeAnnotation"],"ReturnStatement":["argument"],"SequenceExpression":["expressions"],"SwitchCase":["test","consequent"],"SwitchStatement":["discriminant","cases"],"ThisExpression":[],"ThrowStatement":["argument"],"TryStatement":["block","handler","finalizer"],"UnaryExpression":["argument"],"UpdateExpression":["argument"],"VariableDeclaration":["declarations"],"VariableDeclarator":["id","init"],"WhileStatement":["test","body"],"WithStatement":["object","body"],"AssignmentPattern":["left","right"],"ArrayPattern":["elements","typeAnnotation"],"ArrowFunctionExpression":["params","body","returnType","typeParameters"],"ClassBody":["body"],"ClassDeclaration":["id","body","superClass","mixins","typeParameters","superTypeParameters","implements","decorators"],"ClassExpression":["id","body","superClass","mixins","typeParameters","superTypeParameters","implements","decorators"],"ExportAllDeclaration":["source"],"ExportDefaultDeclaration":["declaration"],"ExportNamedDeclaration":["declaration","specifiers","source"],"ExportSpecifier":["local","exported"],"ForOfStatement":["left","right","body"],"ImportDeclaration":["specifiers","source"],"ImportDefaultSpecifier":["local"],"ImportNamespaceSpecifier":["local"],"ImportSpecifier":["local","imported"],"MetaProperty":["meta","property"],"ClassMethod":["key","params","body","decorators","returnType","typeParameters"],"ObjectPattern":["properties","typeAnnotation"],"SpreadElement":["argument"],"Super":[],"TaggedTemplateExpression":["tag","quasi"],"TemplateElement":[],"TemplateLiteral":["quasis","expressions"],"YieldExpression":["argument"],"AnyTypeAnnotation":[],"ArrayTypeAnnotation":["elementType"],"BooleanTypeAnnotation":[],"BooleanLiteralTypeAnnotation":[],"NullLiteralTypeAnnotation":[],"ClassImplements":["id","typeParameters"],"ClassProperty":["key","value","typeAnnotation","decorators"],"DeclareClass":["id","typeParameters","extends","body"],"DeclareFunction":["id"],"DeclareInterface":["id","typeParameters","extends","body"],"DeclareModule":["id","body"],"DeclareModuleExports":["typeAnnotation"],"DeclareTypeAlias":["id","typeParameters","right"],"DeclareOpaqueType":["id","typeParameters","supertype"],"DeclareVariable":["id"],"DeclareExportDeclaration":["declaration","specifiers","source"],"ExistentialTypeParam":[],"FunctionTypeAnnotation":["typeParameters","params","rest","returnType"],"FunctionTypeParam":["name","typeAnnotation"],"GenericTypeAnnotation":["id","typeParameters"],"InterfaceExtends":["id","typeParameters"],"InterfaceDeclaration":["id","typeParameters","extends","body"],"IntersectionTypeAnnotation":["types"],"MixedTypeAnnotation":[],"EmptyTypeAnnotation":[],"NullableTypeAnnotation":["typeAnnotation"],"NumericLiteralTypeAnnotation":[],"NumberTypeAnnotation":[],"StringLiteralTypeAnnotation":[],"StringTypeAnnotation":[],"ThisTypeAnnotation":[],"TupleTypeAnnotation":["types"],"TypeofTypeAnnotation":["argument"],"TypeAlias":["id","typeParameters","right"],"OpaqueType":["id","typeParameters","impltype","supertype"],"TypeAnnotation":["typeAnnotation"],"TypeCastExpression":["expression","typeAnnotation"],"TypeParameter":["bound"],"TypeParameterDeclaration":["params"],"TypeParameterInstantiation":["params"],"ObjectTypeAnnotation":["properties","indexers","callProperties"],"ObjectTypeCallProperty":["value"],"ObjectTypeIndexer":["id","key","value"],"ObjectTypeProperty":["key","value"],"ObjectTypeSpreadProperty":["argument"],"QualifiedTypeIdentifier":["id","qualification"],"UnionTypeAnnotation":["types"],"VoidTypeAnnotation":[],"JSXAttribute":["name","value"],"JSXClosingElement":["name"],"JSXElement":["openingElement","children","closingElement"],"JSXEmptyExpression":[],"JSXExpressionContainer":["expression"],"JSXSpreadChild":["expression"],"JSXIdentifier":[],"JSXMemberExpression":["object","property"],"JSXNamespacedName":["namespace","name"],"JSXOpeningElement":["name","attributes"],"JSXSpreadAttribute":["argument"],"JSXText":[],"Noop":[],"ParenthesizedExpression":["expression"],"AwaitExpression":["argument"],"ForAwaitStatement":["left","right","body"],"BindExpression":["object","callee"],"Import":[],"Decorator":["expression"],"DoExpression":["body"],"ExportDefaultSpecifier":["exported"],"ExportNamespaceSpecifier":["exported"],"RestProperty":["argument"],"SpreadProperty":["argument"]}',
+var _powerAssertVisitorKeys = "{\"ArrayExpression\":[\"elements\"],\"AssignmentExpression\":[\"left\",\"right\"],\"BinaryExpression\":[\"left\",\"right\"],\"Directive\":[\"value\"],\"DirectiveLiteral\":[],\"BlockStatement\":[\"directives\",\"body\"],\"BreakStatement\":[\"label\"],\"CallExpression\":[\"callee\",\"arguments\",\"typeParameters\"],\"CatchClause\":[\"param\",\"body\"],\"ConditionalExpression\":[\"test\",\"consequent\",\"alternate\"],\"ContinueStatement\":[\"label\"],\"DebuggerStatement\":[],\"DoWhileStatement\":[\"test\",\"body\"],\"EmptyStatement\":[],\"ExpressionStatement\":[\"expression\"],\"File\":[\"program\"],\"ForInStatement\":[\"left\",\"right\",\"body\"],\"ForStatement\":[\"init\",\"test\",\"update\",\"body\"],\"FunctionDeclaration\":[\"id\",\"params\",\"body\",\"returnType\",\"typeParameters\"],\"FunctionExpression\":[\"id\",\"params\",\"body\",\"returnType\",\"typeParameters\"],\"Identifier\":[\"typeAnnotation\"],\"IfStatement\":[\"test\",\"consequent\",\"alternate\"],\"LabeledStatement\":[\"label\",\"body\"],\"StringLiteral\":[],\"NumericLiteral\":[],\"NullLiteral\":[],\"BooleanLiteral\":[],\"RegExpLiteral\":[],\"LogicalExpression\":[\"left\",\"right\"],\"MemberExpression\":[\"object\",\"property\"],\"NewExpression\":[\"callee\",\"arguments\",\"typeParameters\"],\"Program\":[\"directives\",\"body\"],\"ObjectExpression\":[\"properties\"],\"ObjectMethod\":[\"key\",\"params\",\"body\",\"decorators\",\"returnType\",\"typeParameters\"],\"ObjectProperty\":[\"key\",\"value\",\"decorators\"],\"RestElement\":[\"argument\",\"typeAnnotation\"],\"ReturnStatement\":[\"argument\"],\"SequenceExpression\":[\"expressions\"],\"SwitchCase\":[\"test\",\"consequent\"],\"SwitchStatement\":[\"discriminant\",\"cases\"],\"ThisExpression\":[],\"ThrowStatement\":[\"argument\"],\"TryStatement\":[\"block\",\"handler\",\"finalizer\"],\"UnaryExpression\":[\"argument\"],\"UpdateExpression\":[\"argument\"],\"VariableDeclaration\":[\"declarations\"],\"VariableDeclarator\":[\"id\",\"init\"],\"WhileStatement\":[\"test\",\"body\"],\"WithStatement\":[\"object\",\"body\"],\"AssignmentPattern\":[\"left\",\"right\"],\"ArrayPattern\":[\"elements\",\"typeAnnotation\"],\"ArrowFunctionExpression\":[\"params\",\"body\",\"returnType\",\"typeParameters\"],\"ClassBody\":[\"body\"],\"ClassDeclaration\":[\"id\",\"body\",\"superClass\",\"mixins\",\"typeParameters\",\"superTypeParameters\",\"implements\",\"decorators\"],\"ClassExpression\":[\"id\",\"body\",\"superClass\",\"mixins\",\"typeParameters\",\"superTypeParameters\",\"implements\",\"decorators\"],\"ExportAllDeclaration\":[\"source\"],\"ExportDefaultDeclaration\":[\"declaration\"],\"ExportNamedDeclaration\":[\"declaration\",\"specifiers\",\"source\"],\"ExportSpecifier\":[\"local\",\"exported\"],\"ForOfStatement\":[\"left\",\"right\",\"body\"],\"ImportDeclaration\":[\"specifiers\",\"source\"],\"ImportDefaultSpecifier\":[\"local\"],\"ImportNamespaceSpecifier\":[\"local\"],\"ImportSpecifier\":[\"local\",\"imported\"],\"MetaProperty\":[\"meta\",\"property\"],\"ClassMethod\":[\"key\",\"params\",\"body\",\"decorators\",\"returnType\",\"typeParameters\"],\"ObjectPattern\":[\"properties\",\"typeAnnotation\"],\"SpreadElement\":[\"argument\"],\"Super\":[],\"TaggedTemplateExpression\":[\"tag\",\"quasi\"],\"TemplateElement\":[],\"TemplateLiteral\":[\"quasis\",\"expressions\"],\"YieldExpression\":[\"argument\"],\"AnyTypeAnnotation\":[],\"ArrayTypeAnnotation\":[\"elementType\"],\"BooleanTypeAnnotation\":[],\"BooleanLiteralTypeAnnotation\":[],\"NullLiteralTypeAnnotation\":[],\"ClassImplements\":[\"id\",\"typeParameters\"],\"DeclareClass\":[\"id\",\"typeParameters\",\"extends\",\"body\"],\"DeclareFunction\":[\"id\"],\"DeclareInterface\":[\"id\",\"typeParameters\",\"extends\",\"body\"],\"DeclareModule\":[\"id\",\"body\"],\"DeclareModuleExports\":[\"typeAnnotation\"],\"DeclareTypeAlias\":[\"id\",\"typeParameters\",\"right\"],\"DeclareOpaqueType\":[\"id\",\"typeParameters\",\"supertype\"],\"DeclareVariable\":[\"id\"],\"DeclareExportDeclaration\":[\"declaration\",\"specifiers\",\"source\"],\"DeclareExportAllDeclaration\":[\"source\"],\"DeclaredPredicate\":[\"value\"],\"ExistsTypeAnnotation\":[],\"FunctionTypeAnnotation\":[\"typeParameters\",\"params\",\"rest\",\"returnType\"],\"FunctionTypeParam\":[\"name\",\"typeAnnotation\"],\"GenericTypeAnnotation\":[\"id\",\"typeParameters\"],\"InferredPredicate\":[],\"InterfaceExtends\":[\"id\",\"typeParameters\"],\"InterfaceDeclaration\":[\"id\",\"typeParameters\",\"extends\",\"body\"],\"IntersectionTypeAnnotation\":[\"types\"],\"MixedTypeAnnotation\":[],\"EmptyTypeAnnotation\":[],\"NullableTypeAnnotation\":[\"typeAnnotation\"],\"NumberLiteralTypeAnnotation\":[],\"NumberTypeAnnotation\":[],\"ObjectTypeAnnotation\":[\"properties\",\"indexers\",\"callProperties\"],\"ObjectTypeCallProperty\":[\"value\"],\"ObjectTypeIndexer\":[\"id\",\"key\",\"value\"],\"ObjectTypeProperty\":[\"key\",\"value\"],\"ObjectTypeSpreadProperty\":[\"argument\"],\"OpaqueType\":[\"id\",\"typeParameters\",\"supertype\",\"impltype\"],\"QualifiedTypeIdentifier\":[\"id\",\"qualification\"],\"StringLiteralTypeAnnotation\":[],\"StringTypeAnnotation\":[],\"ThisTypeAnnotation\":[],\"TupleTypeAnnotation\":[\"types\"],\"TypeofTypeAnnotation\":[\"argument\"],\"TypeAlias\":[\"id\",\"typeParameters\",\"right\"],\"TypeAnnotation\":[\"typeAnnotation\"],\"TypeCastExpression\":[\"expression\",\"typeAnnotation\"],\"TypeParameter\":[\"bound\",\"default\"],\"TypeParameterDeclaration\":[\"params\"],\"TypeParameterInstantiation\":[\"params\"],\"UnionTypeAnnotation\":[\"types\"],\"VoidTypeAnnotation\":[],\"JSXAttribute\":[\"name\",\"value\"],\"JSXClosingElement\":[\"name\"],\"JSXElement\":[\"openingElement\",\"children\",\"closingElement\"],\"JSXEmptyExpression\":[],\"JSXExpressionContainer\":[\"expression\"],\"JSXSpreadChild\":[\"expression\"],\"JSXIdentifier\":[],\"JSXMemberExpression\":[\"object\",\"property\"],\"JSXNamespacedName\":[\"namespace\",\"name\"],\"JSXOpeningElement\":[\"name\",\"attributes\"],\"JSXSpreadAttribute\":[\"argument\"],\"JSXText\":[],\"JSXFragment\":[\"openingFragment\",\"children\",\"closingFragment\"],\"JSXOpeningFragment\":[],\"JSXClosingFragment\":[],\"Noop\":[],\"ParenthesizedExpression\":[\"expression\"],\"AwaitExpression\":[\"argument\"],\"BindExpression\":[\"object\",\"callee\"],\"ClassProperty\":[\"key\",\"value\",\"typeAnnotation\",\"decorators\"],\"Import\":[],\"Decorator\":[\"expression\"],\"DoExpression\":[\"body\"],\"ExportDefaultSpecifier\":[\"exported\"],\"ExportNamespaceSpecifier\":[\"exported\"],\"TSParameterProperty\":[\"parameter\"],\"TSDeclareFunction\":[\"id\",\"typeParameters\",\"params\",\"returnType\"],\"TSDeclareMethod\":[\"decorators\",\"key\",\"typeParameters\",\"params\",\"returnType\"],\"TSQualifiedName\":[\"left\",\"right\"],\"TSCallSignatureDeclaration\":[\"typeParameters\",\"parameters\",\"typeAnnotation\"],\"TSConstructSignatureDeclaration\":[\"typeParameters\",\"parameters\",\"typeAnnotation\"],\"TSPropertySignature\":[\"key\",\"typeAnnotation\",\"initializer\"],\"TSMethodSignature\":[\"key\",\"typeParameters\",\"parameters\",\"typeAnnotation\"],\"TSIndexSignature\":[\"parameters\",\"typeAnnotation\"],\"TSAnyKeyword\":[],\"TSNumberKeyword\":[],\"TSObjectKeyword\":[],\"TSBooleanKeyword\":[],\"TSStringKeyword\":[],\"TSSymbolKeyword\":[],\"TSVoidKeyword\":[],\"TSUndefinedKeyword\":[],\"TSNullKeyword\":[],\"TSNeverKeyword\":[],\"TSThisType\":[],\"TSFunctionType\":[\"typeParameters\",\"typeAnnotation\"],\"TSConstructorType\":[\"typeParameters\",\"typeAnnotation\"],\"TSTypeReference\":[\"typeName\",\"typeParameters\"],\"TSTypePredicate\":[\"parameterName\",\"typeAnnotation\"],\"TSTypeQuery\":[\"exprName\"],\"TSTypeLiteral\":[\"members\"],\"TSArrayType\":[\"elementType\"],\"TSTupleType\":[\"elementTypes\"],\"TSUnionType\":[\"types\"],\"TSIntersectionType\":[\"types\"],\"TSParenthesizedType\":[\"typeAnnotation\"],\"TSTypeOperator\":[\"typeAnnotation\"],\"TSIndexedAccessType\":[\"objectType\",\"indexType\"],\"TSMappedType\":[\"typeParameter\",\"typeAnnotation\"],\"TSLiteralType\":[\"literal\"],\"TSExpressionWithTypeArguments\":[\"expression\",\"typeParameters\"],\"TSInterfaceDeclaration\":[\"id\",\"typeParameters\",\"extends\",\"body\"],\"TSInterfaceBody\":[\"body\"],\"TSTypeAliasDeclaration\":[\"id\",\"typeParameters\",\"typeAnnotation\"],\"TSAsExpression\":[\"expression\",\"typeAnnotation\"],\"TSTypeAssertion\":[\"typeAnnotation\",\"expression\"],\"TSEnumDeclaration\":[\"id\",\"members\"],\"TSEnumMember\":[\"id\",\"initializer\"],\"TSModuleDeclaration\":[\"id\",\"body\"],\"TSModuleBlock\":[\"body\"],\"TSImportEqualsDeclaration\":[\"id\",\"moduleReference\"],\"TSExternalModuleReference\":[\"expression\"],\"TSNonNullExpression\":[\"expression\"],\"TSExportAssignment\":[\"expression\"],\"TSNamespaceExportDeclaration\":[\"id\"],\"TSTypeAnnotation\":[\"typeAnnotation\"],\"TSTypeParameterInstantiation\":[\"params\"],\"TSTypeParameterDeclaration\":[\"params\"],\"TSTypeParameter\":[\"constraint\",\"default\"]}",
     _powerAssertRecorder = function () { function PowerAssertRecorder() { this.captured = []; } PowerAssertRecorder.prototype._capt = function _capt(value, espath) { this.captured.push({ value: value, espath: espath }); return value; }; PowerAssertRecorder.prototype._expr = function _expr(value, source) { var capturedValues = this.captured; this.captured = []; return { powerAssertContext: { value: value, events: capturedValues }, source: source }; }; return PowerAssertRecorder; }(),
     _rec = new _powerAssertRecorder(),
     _rec2 = new _powerAssertRecorder(),
@@ -10,49 +10,50 @@ var _powerAssertVisitorKeys = '{"ArrayExpression":["elements"],"AssignmentExpres
 
 function _defineProperty(obj, key, value) { if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; }
 
-assert(_rec._expr(_rec._capt(_defineProperty({}, _rec._capt(num, 'arguments/0/properties/0/key'), _rec._capt(foo, 'arguments/0/properties/0/value')), 'arguments/0'), {
-  content: 'assert({ [num]: foo })',
-  filepath: 'test/fixtures/Property/fixture.js',
+assert(_rec._expr(_rec._capt(_defineProperty({}, _rec._capt(num, "arguments/0/properties/0/key"), _rec._capt(foo, "arguments/0/properties/0/value")), "arguments/0"), {
+  content: "assert({ [num]: foo })",
+  filepath: "test/fixtures/Property/fixture.js",
   line: 3,
-  ast: '{"type":"CallExpression","callee":{"type":"Identifier","name":"assert","range":[0,6]},"arguments":[{"type":"ObjectExpression","properties":[{"type":"ObjectProperty","key":{"type":"Identifier","name":"num","range":[10,13]},"value":{"type":"Identifier","name":"foo","range":[16,19]},"computed":true,"shorthand":false,"range":[9,19]}],"range":[7,21]}],"range":[0,22]}',
-  tokens: '[{"type":{"label":"name"},"value":"assert","range":[0,6]},{"type":{"label":"("},"range":[6,7]},{"type":{"label":"{"},"range":[7,8]},{"type":{"label":"["},"range":[9,10]},{"type":{"label":"name"},"value":"num","range":[10,13]},{"type":{"label":"]"},"range":[13,14]},{"type":{"label":":"},"range":[14,15]},{"type":{"label":"name"},"value":"foo","range":[16,19]},{"type":{"label":"}"},"range":[20,21]},{"type":{"label":")"},"range":[21,22]}]',
+  ast: "{\"type\":\"CallExpression\",\"callee\":{\"type\":\"Identifier\",\"name\":\"assert\",\"range\":[0,6]},\"arguments\":[{\"type\":\"ObjectExpression\",\"properties\":[{\"type\":\"ObjectProperty\",\"key\":{\"type\":\"Identifier\",\"name\":\"num\",\"range\":[10,13]},\"value\":{\"type\":\"Identifier\",\"name\":\"foo\",\"range\":[16,19]},\"computed\":true,\"shorthand\":false,\"range\":[9,19]}],\"range\":[7,21]}],\"range\":[0,22]}",
+  tokens: "[{\"type\":{\"label\":\"name\"},\"value\":\"assert\",\"range\":[0,6]},{\"type\":{\"label\":\"(\"},\"range\":[6,7]},{\"type\":{\"label\":\"{\"},\"range\":[7,8]},{\"type\":{\"label\":\"[\"},\"range\":[9,10]},{\"type\":{\"label\":\"name\"},\"value\":\"num\",\"range\":[10,13]},{\"type\":{\"label\":\"]\"},\"range\":[13,14]},{\"type\":{\"label\":\":\"},\"range\":[14,15]},{\"type\":{\"label\":\"name\"},\"value\":\"foo\",\"range\":[16,19]},{\"type\":{\"label\":\"}\"},\"range\":[20,21]},{\"type\":{\"label\":\")\"},\"range\":[21,22]}]",
   visitorKeys: _powerAssertVisitorKeys
 }));
-
 assert(_rec2._expr(_rec2._capt(_defineProperty({}, _rec2._capt('prop_' + _rec2._capt(function () {
   return bar();
-}(), 'arguments/0/properties/0/key/right'), 'arguments/0/properties/0/key'), 42), 'arguments/0'), {
-  content: 'assert({ [\'prop_\' + (() => bar())()]: 42 })',
-  filepath: 'test/fixtures/Property/fixture.js',
+}(), "arguments/0/properties/0/key/right"), "arguments/0/properties/0/key"), 42), "arguments/0"), {
+  content: "assert({ ['prop_' + (() => bar())()]: 42 })",
+  filepath: "test/fixtures/Property/fixture.js",
   line: 5,
-  ast: '{"type":"CallExpression","callee":{"type":"Identifier","name":"assert","range":[0,6]},"arguments":[{"type":"ObjectExpression","properties":[{"type":"ObjectProperty","key":{"type":"BinaryExpression","operator":"+","left":{"type":"StringLiteral","value":"prop_","range":[10,17]},"right":{"type":"CallExpression","callee":{"type":"ArrowFunctionExpression","params":[],"body":{"type":"CallExpression","callee":{"type":"Identifier","name":"bar","range":[27,30]},"arguments":[],"range":[27,32]},"async":false,"range":[21,32]},"arguments":[],"range":[20,35]},"range":[10,35]},"value":{"type":"NumericLiteral","value":42,"range":[38,40]},"computed":true,"shorthand":false,"range":[9,40]}],"range":[7,42]}],"range":[0,43]}',
-  tokens: '[{"type":{"label":"name"},"value":"assert","range":[0,6]},{"type":{"label":"("},"range":[6,7]},{"type":{"label":"{"},"range":[7,8]},{"type":{"label":"["},"range":[9,10]},{"type":{"label":"string"},"value":"prop_","range":[10,17]},{"type":{"label":"+/-"},"value":"+","range":[18,19]},{"type":{"label":"("},"range":[20,21]},{"type":{"label":"("},"range":[21,22]},{"type":{"label":")"},"range":[22,23]},{"type":{"label":"=>"},"range":[24,26]},{"type":{"label":"name"},"value":"bar","range":[27,30]},{"type":{"label":"("},"range":[30,31]},{"type":{"label":")"},"range":[31,32]},{"type":{"label":")"},"range":[32,33]},{"type":{"label":"("},"range":[33,34]},{"type":{"label":")"},"range":[34,35]},{"type":{"label":"]"},"range":[35,36]},{"type":{"label":":"},"range":[36,37]},{"type":{"label":"num"},"value":42,"range":[38,40]},{"type":{"label":"}"},"range":[41,42]},{"type":{"label":")"},"range":[42,43]}]',
+  ast: "{\"type\":\"CallExpression\",\"callee\":{\"type\":\"Identifier\",\"name\":\"assert\",\"range\":[0,6]},\"arguments\":[{\"type\":\"ObjectExpression\",\"properties\":[{\"type\":\"ObjectProperty\",\"key\":{\"type\":\"BinaryExpression\",\"operator\":\"+\",\"left\":{\"type\":\"StringLiteral\",\"value\":\"prop_\",\"range\":[10,17]},\"right\":{\"type\":\"CallExpression\",\"callee\":{\"type\":\"ArrowFunctionExpression\",\"params\":[],\"body\":{\"type\":\"CallExpression\",\"callee\":{\"type\":\"Identifier\",\"name\":\"bar\",\"range\":[27,30]},\"arguments\":[],\"range\":[27,32]},\"async\":false,\"range\":[21,32]},\"arguments\":[],\"range\":[20,35]},\"range\":[10,35]},\"value\":{\"type\":\"NumericLiteral\",\"value\":42,\"range\":[38,40]},\"computed\":true,\"shorthand\":false,\"range\":[9,40]}],\"range\":[7,42]}],\"range\":[0,43]}",
+  tokens: "[{\"type\":{\"label\":\"name\"},\"value\":\"assert\",\"range\":[0,6]},{\"type\":{\"label\":\"(\"},\"range\":[6,7]},{\"type\":{\"label\":\"{\"},\"range\":[7,8]},{\"type\":{\"label\":\"[\"},\"range\":[9,10]},{\"type\":{\"label\":\"string\"},\"value\":\"prop_\",\"range\":[10,17]},{\"type\":{\"label\":\"+/-\"},\"value\":\"+\",\"range\":[18,19]},{\"type\":{\"label\":\"(\"},\"range\":[20,21]},{\"type\":{\"label\":\"(\"},\"range\":[21,22]},{\"type\":{\"label\":\")\"},\"range\":[22,23]},{\"type\":{\"label\":\"=>\"},\"range\":[24,26]},{\"type\":{\"label\":\"name\"},\"value\":\"bar\",\"range\":[27,30]},{\"type\":{\"label\":\"(\"},\"range\":[30,31]},{\"type\":{\"label\":\")\"},\"range\":[31,32]},{\"type\":{\"label\":\")\"},\"range\":[32,33]},{\"type\":{\"label\":\"(\"},\"range\":[33,34]},{\"type\":{\"label\":\")\"},\"range\":[34,35]},{\"type\":{\"label\":\"]\"},\"range\":[35,36]},{\"type\":{\"label\":\":\"},\"range\":[36,37]},{\"type\":{\"label\":\"num\"},\"value\":42,\"range\":[38,40]},{\"type\":{\"label\":\"}\"},\"range\":[41,42]},{\"type\":{\"label\":\")\"},\"range\":[42,43]}]",
   visitorKeys: _powerAssertVisitorKeys
 }));
-
-assert(_rec3._expr(_rec3._capt(_defineProperty({}, _rec3._capt('prop_' + _rec3._capt(generate(_rec3._capt(seed, 'arguments/0/properties/0/key/expressions/0/arguments/0')), 'arguments/0/properties/0/key/expressions/0'), 'arguments/0/properties/0/key'), _rec3._capt(foo, 'arguments/0/properties/0/value')), 'arguments/0'), {
-  content: 'assert({ [`prop_${generate(seed)}`]: foo })',
-  filepath: 'test/fixtures/Property/fixture.js',
+assert(_rec3._expr(_rec3._capt(_defineProperty({}, _rec3._capt("prop_".concat(_rec3._capt(generate(_rec3._capt(seed, "arguments/0/properties/0/key/expressions/0/arguments/0")), "arguments/0/properties/0/key/expressions/0")), "arguments/0/properties/0/key"), _rec3._capt(foo, "arguments/0/properties/0/value")), "arguments/0"), {
+  content: "assert({ [`prop_${generate(seed)}`]: foo })",
+  filepath: "test/fixtures/Property/fixture.js",
   line: 7,
-  ast: '{"type":"CallExpression","callee":{"type":"Identifier","name":"assert","range":[0,6]},"arguments":[{"type":"ObjectExpression","properties":[{"type":"ObjectProperty","key":{"type":"TemplateLiteral","quasis":[{"type":"TemplateElement","value":{"raw":"prop_","cooked":"prop_"},"tail":false,"range":[11,16]},{"type":"TemplateElement","value":{"raw":"","cooked":""},"tail":true,"range":[33,33]}],"expressions":[{"type":"CallExpression","callee":{"type":"Identifier","name":"generate","range":[18,26]},"arguments":[{"type":"Identifier","name":"seed","range":[27,31]}],"range":[18,32]}],"range":[10,34]},"value":{"type":"Identifier","name":"foo","range":[37,40]},"computed":true,"shorthand":false,"range":[9,40]}],"range":[7,42]}],"range":[0,43]}',
-  tokens: '[{"type":{"label":"name"},"value":"assert","range":[0,6]},{"type":{"label":"("},"range":[6,7]},{"type":{"label":"{"},"range":[7,8]},{"type":{"label":"["},"range":[9,10]},{"type":{"label":"`"},"range":[10,11]},{"type":{"label":"template"},"value":"prop_","range":[11,16]},{"type":{"label":"${"},"range":[16,18]},{"type":{"label":"name"},"value":"generate","range":[18,26]},{"type":{"label":"("},"range":[26,27]},{"type":{"label":"name"},"value":"seed","range":[27,31]},{"type":{"label":")"},"range":[31,32]},{"type":{"label":"}"},"range":[32,33]},{"type":{"label":"template"},"value":"","range":[33,33]},{"type":{"label":"`"},"range":[33,34]},{"type":{"label":"]"},"range":[34,35]},{"type":{"label":":"},"range":[35,36]},{"type":{"label":"name"},"value":"foo","range":[37,40]},{"type":{"label":"}"},"range":[41,42]},{"type":{"label":")"},"range":[42,43]}]',
+  ast: "{\"type\":\"CallExpression\",\"callee\":{\"type\":\"Identifier\",\"name\":\"assert\",\"range\":[0,6]},\"arguments\":[{\"type\":\"ObjectExpression\",\"properties\":[{\"type\":\"ObjectProperty\",\"key\":{\"type\":\"TemplateLiteral\",\"quasis\":[{\"type\":\"TemplateElement\",\"value\":{\"raw\":\"prop_\",\"cooked\":\"prop_\"},\"tail\":false,\"range\":[11,16]},{\"type\":\"TemplateElement\",\"value\":{\"raw\":\"\",\"cooked\":\"\"},\"tail\":true,\"range\":[33,33]}],\"expressions\":[{\"type\":\"CallExpression\",\"callee\":{\"type\":\"Identifier\",\"name\":\"generate\",\"range\":[18,26]},\"arguments\":[{\"type\":\"Identifier\",\"name\":\"seed\",\"range\":[27,31]}],\"range\":[18,32]}],\"range\":[10,34]},\"value\":{\"type\":\"Identifier\",\"name\":\"foo\",\"range\":[37,40]},\"computed\":true,\"shorthand\":false,\"range\":[9,40]}],\"range\":[7,42]}],\"range\":[0,43]}",
+  tokens: "[{\"type\":{\"label\":\"name\"},\"value\":\"assert\",\"range\":[0,6]},{\"type\":{\"label\":\"(\"},\"range\":[6,7]},{\"type\":{\"label\":\"{\"},\"range\":[7,8]},{\"type\":{\"label\":\"[\"},\"range\":[9,10]},{\"type\":{\"label\":\"`\"},\"range\":[10,11]},{\"type\":{\"label\":\"template\"},\"value\":\"prop_\",\"range\":[11,16]},{\"type\":{\"label\":\"${\"},\"range\":[16,18]},{\"type\":{\"label\":\"name\"},\"value\":\"generate\",\"range\":[18,26]},{\"type\":{\"label\":\"(\"},\"range\":[26,27]},{\"type\":{\"label\":\"name\"},\"value\":\"seed\",\"range\":[27,31]},{\"type\":{\"label\":\")\"},\"range\":[31,32]},{\"type\":{\"label\":\"}\"},\"range\":[32,33]},{\"type\":{\"label\":\"template\"},\"value\":\"\",\"range\":[33,33]},{\"type\":{\"label\":\"`\"},\"range\":[33,34]},{\"type\":{\"label\":\"]\"},\"range\":[34,35]},{\"type\":{\"label\":\":\"},\"range\":[35,36]},{\"type\":{\"label\":\"name\"},\"value\":\"foo\",\"range\":[37,40]},{\"type\":{\"label\":\"}\"},\"range\":[41,42]},{\"type\":{\"label\":\")\"},\"range\":[42,43]}]",
   visitorKeys: _powerAssertVisitorKeys
 }));
-
-assert(_rec4._expr(_rec4._capt({ foo: foo }, 'arguments/0'), {
-  content: 'assert({ foo })',
-  filepath: 'test/fixtures/Property/fixture.js',
+assert(_rec4._expr(_rec4._capt({
+  foo: foo
+}, "arguments/0"), {
+  content: "assert({ foo })",
+  filepath: "test/fixtures/Property/fixture.js",
   line: 9,
-  ast: '{"type":"CallExpression","callee":{"type":"Identifier","name":"assert","range":[0,6]},"arguments":[{"type":"ObjectExpression","properties":[{"type":"ObjectProperty","key":{"type":"Identifier","name":"foo","range":[9,12]},"value":{"type":"Identifier","name":"foo","range":[9,12]},"computed":false,"shorthand":true,"range":[9,12]}],"range":[7,14]}],"range":[0,15]}',
-  tokens: '[{"type":{"label":"name"},"value":"assert","range":[0,6]},{"type":{"label":"("},"range":[6,7]},{"type":{"label":"{"},"range":[7,8]},{"type":{"label":"name"},"value":"foo","range":[9,12]},{"type":{"label":"}"},"range":[13,14]},{"type":{"label":")"},"range":[14,15]}]',
+  ast: "{\"type\":\"CallExpression\",\"callee\":{\"type\":\"Identifier\",\"name\":\"assert\",\"range\":[0,6]},\"arguments\":[{\"type\":\"ObjectExpression\",\"properties\":[{\"type\":\"ObjectProperty\",\"key\":{\"type\":\"Identifier\",\"name\":\"foo\",\"range\":[9,12]},\"value\":{\"type\":\"Identifier\",\"name\":\"foo\",\"range\":[9,12]},\"computed\":false,\"shorthand\":true,\"range\":[9,12]}],\"range\":[7,14]}],\"range\":[0,15]}",
+  tokens: "[{\"type\":{\"label\":\"name\"},\"value\":\"assert\",\"range\":[0,6]},{\"type\":{\"label\":\"(\"},\"range\":[6,7]},{\"type\":{\"label\":\"{\"},\"range\":[7,8]},{\"type\":{\"label\":\"name\"},\"value\":\"foo\",\"range\":[9,12]},{\"type\":{\"label\":\"}\"},\"range\":[13,14]},{\"type\":{\"label\":\")\"},\"range\":[14,15]}]",
   visitorKeys: _powerAssertVisitorKeys
 }));
-
-assert(_rec5._expr(_rec5._capt({ foo: foo, bar: _rec5._capt(baz, 'arguments/0/properties/1/value') }, 'arguments/0'), {
-  content: 'assert({ foo, bar: baz })',
-  filepath: 'test/fixtures/Property/fixture.js',
+assert(_rec5._expr(_rec5._capt({
+  foo: foo,
+  bar: _rec5._capt(baz, "arguments/0/properties/1/value")
+}, "arguments/0"), {
+  content: "assert({ foo, bar: baz })",
+  filepath: "test/fixtures/Property/fixture.js",
   line: 11,
-  ast: '{"type":"CallExpression","callee":{"type":"Identifier","name":"assert","range":[0,6]},"arguments":[{"type":"ObjectExpression","properties":[{"type":"ObjectProperty","key":{"type":"Identifier","name":"foo","range":[9,12]},"value":{"type":"Identifier","name":"foo","range":[9,12]},"computed":false,"shorthand":true,"range":[9,12]},{"type":"ObjectProperty","key":{"type":"Identifier","name":"bar","range":[14,17]},"value":{"type":"Identifier","name":"baz","range":[19,22]},"computed":false,"shorthand":false,"range":[14,22]}],"range":[7,24]}],"range":[0,25]}',
-  tokens: '[{"type":{"label":"name"},"value":"assert","range":[0,6]},{"type":{"label":"("},"range":[6,7]},{"type":{"label":"{"},"range":[7,8]},{"type":{"label":"name"},"value":"foo","range":[9,12]},{"type":{"label":","},"range":[12,13]},{"type":{"label":"name"},"value":"bar","range":[14,17]},{"type":{"label":":"},"range":[17,18]},{"type":{"label":"name"},"value":"baz","range":[19,22]},{"type":{"label":"}"},"range":[23,24]},{"type":{"label":")"},"range":[24,25]}]',
+  ast: "{\"type\":\"CallExpression\",\"callee\":{\"type\":\"Identifier\",\"name\":\"assert\",\"range\":[0,6]},\"arguments\":[{\"type\":\"ObjectExpression\",\"properties\":[{\"type\":\"ObjectProperty\",\"key\":{\"type\":\"Identifier\",\"name\":\"foo\",\"range\":[9,12]},\"value\":{\"type\":\"Identifier\",\"name\":\"foo\",\"range\":[9,12]},\"computed\":false,\"shorthand\":true,\"range\":[9,12]},{\"type\":\"ObjectProperty\",\"key\":{\"type\":\"Identifier\",\"name\":\"bar\",\"range\":[14,17]},\"value\":{\"type\":\"Identifier\",\"name\":\"baz\",\"range\":[19,22]},\"computed\":false,\"shorthand\":false,\"range\":[14,22]}],\"range\":[7,24]}],\"range\":[0,25]}",
+  tokens: "[{\"type\":{\"label\":\"name\"},\"value\":\"assert\",\"range\":[0,6]},{\"type\":{\"label\":\"(\"},\"range\":[6,7]},{\"type\":{\"label\":\"{\"},\"range\":[7,8]},{\"type\":{\"label\":\"name\"},\"value\":\"foo\",\"range\":[9,12]},{\"type\":{\"label\":\",\"},\"range\":[12,13]},{\"type\":{\"label\":\"name\"},\"value\":\"bar\",\"range\":[14,17]},{\"type\":{\"label\":\":\"},\"range\":[17,18]},{\"type\":{\"label\":\"name\"},\"value\":\"baz\",\"range\":[19,22]},{\"type\":{\"label\":\"}\"},\"range\":[23,24]},{\"type\":{\"label\":\")\"},\"range\":[24,25]}]",
   visitorKeys: _powerAssertVisitorKeys
 }));
diff --git a/test/fixtures/Property/expected.js b/test/fixtures/Property/expected.js
index 9a27d2a..cdf952f 100644
--- a/test/fixtures/Property/expected.js
+++ b/test/fixtures/Property/expected.js
@@ -7,32 +7,39 @@ var _powerAssertRecorder = function () { function PowerAssertRecorder() { this.c
     _rec4 = new _powerAssertRecorder(),
     _rec5 = new _powerAssertRecorder();
 
-assert(_rec._expr(_rec._capt({ [_rec._capt(num, 'arguments/0/properties/0/key')]: _rec._capt(foo, 'arguments/0/properties/0/value') }, 'arguments/0'), {
-  content: 'assert({ [num]: foo })',
-  filepath: 'test/fixtures/Property/fixture.js',
+assert(_rec._expr(_rec._capt({
+  [_rec._capt(num, "arguments/0/properties/0/key")]: _rec._capt(foo, "arguments/0/properties/0/value")
+}, "arguments/0"), {
+  content: "assert({ [num]: foo })",
+  filepath: "test/fixtures/Property/fixture.js",
   line: 3
 }));
-
-assert(_rec2._expr(_rec2._capt({ [_rec2._capt('prop_' + _rec2._capt((() => bar())(), 'arguments/0/properties/0/key/right'), 'arguments/0/properties/0/key')]: 42 }, 'arguments/0'), {
-  content: 'assert({ [\'prop_\' + (() => bar())()]: 42 })',
-  filepath: 'test/fixtures/Property/fixture.js',
+assert(_rec2._expr(_rec2._capt({
+  [_rec2._capt('prop_' + _rec2._capt((() => bar())(), "arguments/0/properties/0/key/right"), "arguments/0/properties/0/key")]: 42
+}, "arguments/0"), {
+  content: "assert({ ['prop_' + (() => bar())()]: 42 })",
+  filepath: "test/fixtures/Property/fixture.js",
   line: 5
 }));
-
-assert(_rec3._expr(_rec3._capt({ [_rec3._capt(`prop_${_rec3._capt(generate(_rec3._capt(seed, 'arguments/0/properties/0/key/expressions/0/arguments/0')), 'arguments/0/properties/0/key/expressions/0')}`, 'arguments/0/properties/0/key')]: _rec3._capt(foo, 'arguments/0/properties/0/value') }, 'arguments/0'), {
-  content: 'assert({ [`prop_${generate(seed)}`]: foo })',
-  filepath: 'test/fixtures/Property/fixture.js',
+assert(_rec3._expr(_rec3._capt({
+  [_rec3._capt(`prop_${_rec3._capt(generate(_rec3._capt(seed, "arguments/0/properties/0/key/expressions/0/arguments/0")), "arguments/0/properties/0/key/expressions/0")}`, "arguments/0/properties/0/key")]: _rec3._capt(foo, "arguments/0/properties/0/value")
+}, "arguments/0"), {
+  content: "assert({ [`prop_${generate(seed)}`]: foo })",
+  filepath: "test/fixtures/Property/fixture.js",
   line: 7
 }));
-
-assert(_rec4._expr(_rec4._capt({ foo }, 'arguments/0'), {
-  content: 'assert({ foo })',
-  filepath: 'test/fixtures/Property/fixture.js',
+assert(_rec4._expr(_rec4._capt({
+  foo
+}, "arguments/0"), {
+  content: "assert({ foo })",
+  filepath: "test/fixtures/Property/fixture.js",
   line: 9
 }));
-
-assert(_rec5._expr(_rec5._capt({ foo, bar: _rec5._capt(baz, 'arguments/0/properties/1/value') }, 'arguments/0'), {
-  content: 'assert({ foo, bar: baz })',
-  filepath: 'test/fixtures/Property/fixture.js',
+assert(_rec5._expr(_rec5._capt({
+  foo,
+  bar: _rec5._capt(baz, "arguments/0/properties/1/value")
+}, "arguments/0"), {
+  content: "assert({ foo, bar: baz })",
+  filepath: "test/fixtures/Property/fixture.js",
   line: 11
 }));
diff --git a/test/fixtures/React/expected-presets-react.js b/test/fixtures/React/expected-presets-react.js
index 3490a3c..f9195ee 100644
--- a/test/fixtures/React/expected-presets-react.js
+++ b/test/fixtures/React/expected-presets-react.js
@@ -1,192 +1,194 @@
-'use strict';
+"use strict";
 
-var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();
+var _react = _interopRequireDefault(require("react"));
 
-var _powerAssertVisitorKeys = '{"ArrayExpression":["elements"],"AssignmentExpression":["left","right"],"BinaryExpression":["left","right"],"Directive":["value"],"DirectiveLiteral":[],"BlockStatement":["directives","body"],"BreakStatement":["label"],"CallExpression":["callee","arguments"],"CatchClause":["param","body"],"ConditionalExpression":["test","consequent","alternate"],"ContinueStatement":["label"],"DebuggerStatement":[],"DoWhileStatement":["test","body"],"EmptyStatement":[],"ExpressionStatement":["expression"],"File":["program"],"ForInStatement":["left","right","body"],"ForStatement":["init","test","update","body"],"FunctionDeclaration":["id","params","body","returnType","typeParameters"],"FunctionExpression":["id","params","body","returnType","typeParameters"],"Identifier":["typeAnnotation"],"IfStatement":["test","consequent","alternate"],"LabeledStatement":["label","body"],"StringLiteral":[],"NumericLiteral":[],"NullLiteral":[],"BooleanLiteral":[],"RegExpLiteral":[],"LogicalExpression":["left","right"],"MemberExpression":["object","property"],"NewExpression":["callee","arguments"],"Program":["directives","body"],"ObjectExpression":["properties"],"ObjectMethod":["key","params","body","decorators","returnType","typeParameters"],"ObjectProperty":["key","value","decorators"],"RestElement":["argument","typeAnnotation"],"ReturnStatement":["argument"],"SequenceExpression":["expressions"],"SwitchCase":["test","consequent"],"SwitchStatement":["discriminant","cases"],"ThisExpression":[],"ThrowStatement":["argument"],"TryStatement":["block","handler","finalizer"],"UnaryExpression":["argument"],"UpdateExpression":["argument"],"VariableDeclaration":["declarations"],"VariableDeclarator":["id","init"],"WhileStatement":["test","body"],"WithStatement":["object","body"],"AssignmentPattern":["left","right"],"ArrayPattern":["elements","typeAnnotation"],"ArrowFunctionExpression":["params","body","returnType","typeParameters"],"ClassBody":["body"],"ClassDeclaration":["id","body","superClass","mixins","typeParameters","superTypeParameters","implements","decorators"],"ClassExpression":["id","body","superClass","mixins","typeParameters","superTypeParameters","implements","decorators"],"ExportAllDeclaration":["source"],"ExportDefaultDeclaration":["declaration"],"ExportNamedDeclaration":["declaration","specifiers","source"],"ExportSpecifier":["local","exported"],"ForOfStatement":["left","right","body"],"ImportDeclaration":["specifiers","source"],"ImportDefaultSpecifier":["local"],"ImportNamespaceSpecifier":["local"],"ImportSpecifier":["local","imported"],"MetaProperty":["meta","property"],"ClassMethod":["key","params","body","decorators","returnType","typeParameters"],"ObjectPattern":["properties","typeAnnotation"],"SpreadElement":["argument"],"Super":[],"TaggedTemplateExpression":["tag","quasi"],"TemplateElement":[],"TemplateLiteral":["quasis","expressions"],"YieldExpression":["argument"],"AnyTypeAnnotation":[],"ArrayTypeAnnotation":["elementType"],"BooleanTypeAnnotation":[],"BooleanLiteralTypeAnnotation":[],"NullLiteralTypeAnnotation":[],"ClassImplements":["id","typeParameters"],"ClassProperty":["key","value","typeAnnotation","decorators"],"DeclareClass":["id","typeParameters","extends","body"],"DeclareFunction":["id"],"DeclareInterface":["id","typeParameters","extends","body"],"DeclareModule":["id","body"],"DeclareModuleExports":["typeAnnotation"],"DeclareTypeAlias":["id","typeParameters","right"],"DeclareOpaqueType":["id","typeParameters","supertype"],"DeclareVariable":["id"],"DeclareExportDeclaration":["declaration","specifiers","source"],"ExistentialTypeParam":[],"FunctionTypeAnnotation":["typeParameters","params","rest","returnType"],"FunctionTypeParam":["name","typeAnnotation"],"GenericTypeAnnotation":["id","typeParameters"],"InterfaceExtends":["id","typeParameters"],"InterfaceDeclaration":["id","typeParameters","extends","body"],"IntersectionTypeAnnotation":["types"],"MixedTypeAnnotation":[],"EmptyTypeAnnotation":[],"NullableTypeAnnotation":["typeAnnotation"],"NumericLiteralTypeAnnotation":[],"NumberTypeAnnotation":[],"StringLiteralTypeAnnotation":[],"StringTypeAnnotation":[],"ThisTypeAnnotation":[],"TupleTypeAnnotation":["types"],"TypeofTypeAnnotation":["argument"],"TypeAlias":["id","typeParameters","right"],"OpaqueType":["id","typeParameters","impltype","supertype"],"TypeAnnotation":["typeAnnotation"],"TypeCastExpression":["expression","typeAnnotation"],"TypeParameter":["bound"],"TypeParameterDeclaration":["params"],"TypeParameterInstantiation":["params"],"ObjectTypeAnnotation":["properties","indexers","callProperties"],"ObjectTypeCallProperty":["value"],"ObjectTypeIndexer":["id","key","value"],"ObjectTypeProperty":["key","value"],"ObjectTypeSpreadProperty":["argument"],"QualifiedTypeIdentifier":["id","qualification"],"UnionTypeAnnotation":["types"],"VoidTypeAnnotation":[],"JSXAttribute":["name","value"],"JSXClosingElement":["name"],"JSXElement":["openingElement","children","closingElement"],"JSXEmptyExpression":[],"JSXExpressionContainer":["expression"],"JSXSpreadChild":["expression"],"JSXIdentifier":[],"JSXMemberExpression":["object","property"],"JSXNamespacedName":["namespace","name"],"JSXOpeningElement":["name","attributes"],"JSXSpreadAttribute":["argument"],"JSXText":[],"Noop":[],"ParenthesizedExpression":["expression"],"AwaitExpression":["argument"],"ForAwaitStatement":["left","right","body"],"BindExpression":["object","callee"],"Import":[],"Decorator":["expression"],"DoExpression":["body"],"ExportDefaultSpecifier":["exported"],"ExportNamespaceSpecifier":["exported"],"RestProperty":["argument"],"SpreadProperty":["argument"]}',
-    _powerAssertRecorder = function () { function PowerAssertRecorder() { this.captured = []; } PowerAssertRecorder.prototype._capt = function _capt(value, espath) { this.captured.push({ value: value, espath: espath }); return value; }; PowerAssertRecorder.prototype._expr = function _expr(value, source) { var capturedValues = this.captured; this.captured = []; return { powerAssertContext: { value: value, events: capturedValues }, source: source }; }; return PowerAssertRecorder; }();
-
-var _react = require('react');
+var _powerAssert = _interopRequireDefault(require("power-assert"));
 
-var _react2 = _interopRequireDefault(_react);
+var _enzyme = require("enzyme");
 
-var _powerAssert = require('power-assert');
+var sinon = _interopRequireWildcard(require("sinon"));
 
-var _powerAssert2 = _interopRequireDefault(_powerAssert);
+var _Foo = _interopRequireDefault(require("../src/Foo"));
 
-var _enzyme = require('enzyme');
+var _powerAssertVisitorKeys = "{\"ArrayExpression\":[\"elements\"],\"AssignmentExpression\":[\"left\",\"right\"],\"BinaryExpression\":[\"left\",\"right\"],\"Directive\":[\"value\"],\"DirectiveLiteral\":[],\"BlockStatement\":[\"directives\",\"body\"],\"BreakStatement\":[\"label\"],\"CallExpression\":[\"callee\",\"arguments\",\"typeParameters\"],\"CatchClause\":[\"param\",\"body\"],\"ConditionalExpression\":[\"test\",\"consequent\",\"alternate\"],\"ContinueStatement\":[\"label\"],\"DebuggerStatement\":[],\"DoWhileStatement\":[\"test\",\"body\"],\"EmptyStatement\":[],\"ExpressionStatement\":[\"expression\"],\"File\":[\"program\"],\"ForInStatement\":[\"left\",\"right\",\"body\"],\"ForStatement\":[\"init\",\"test\",\"update\",\"body\"],\"FunctionDeclaration\":[\"id\",\"params\",\"body\",\"returnType\",\"typeParameters\"],\"FunctionExpression\":[\"id\",\"params\",\"body\",\"returnType\",\"typeParameters\"],\"Identifier\":[\"typeAnnotation\"],\"IfStatement\":[\"test\",\"consequent\",\"alternate\"],\"LabeledStatement\":[\"label\",\"body\"],\"StringLiteral\":[],\"NumericLiteral\":[],\"NullLiteral\":[],\"BooleanLiteral\":[],\"RegExpLiteral\":[],\"LogicalExpression\":[\"left\",\"right\"],\"MemberExpression\":[\"object\",\"property\"],\"NewExpression\":[\"callee\",\"arguments\",\"typeParameters\"],\"Program\":[\"directives\",\"body\"],\"ObjectExpression\":[\"properties\"],\"ObjectMethod\":[\"key\",\"params\",\"body\",\"decorators\",\"returnType\",\"typeParameters\"],\"ObjectProperty\":[\"key\",\"value\",\"decorators\"],\"RestElement\":[\"argument\",\"typeAnnotation\"],\"ReturnStatement\":[\"argument\"],\"SequenceExpression\":[\"expressions\"],\"SwitchCase\":[\"test\",\"consequent\"],\"SwitchStatement\":[\"discriminant\",\"cases\"],\"ThisExpression\":[],\"ThrowStatement\":[\"argument\"],\"TryStatement\":[\"block\",\"handler\",\"finalizer\"],\"UnaryExpression\":[\"argument\"],\"UpdateExpression\":[\"argument\"],\"VariableDeclaration\":[\"declarations\"],\"VariableDeclarator\":[\"id\",\"init\"],\"WhileStatement\":[\"test\",\"body\"],\"WithStatement\":[\"object\",\"body\"],\"AssignmentPattern\":[\"left\",\"right\"],\"ArrayPattern\":[\"elements\",\"typeAnnotation\"],\"ArrowFunctionExpression\":[\"params\",\"body\",\"returnType\",\"typeParameters\"],\"ClassBody\":[\"body\"],\"ClassDeclaration\":[\"id\",\"body\",\"superClass\",\"mixins\",\"typeParameters\",\"superTypeParameters\",\"implements\",\"decorators\"],\"ClassExpression\":[\"id\",\"body\",\"superClass\",\"mixins\",\"typeParameters\",\"superTypeParameters\",\"implements\",\"decorators\"],\"ExportAllDeclaration\":[\"source\"],\"ExportDefaultDeclaration\":[\"declaration\"],\"ExportNamedDeclaration\":[\"declaration\",\"specifiers\",\"source\"],\"ExportSpecifier\":[\"local\",\"exported\"],\"ForOfStatement\":[\"left\",\"right\",\"body\"],\"ImportDeclaration\":[\"specifiers\",\"source\"],\"ImportDefaultSpecifier\":[\"local\"],\"ImportNamespaceSpecifier\":[\"local\"],\"ImportSpecifier\":[\"local\",\"imported\"],\"MetaProperty\":[\"meta\",\"property\"],\"ClassMethod\":[\"key\",\"params\",\"body\",\"decorators\",\"returnType\",\"typeParameters\"],\"ObjectPattern\":[\"properties\",\"typeAnnotation\"],\"SpreadElement\":[\"argument\"],\"Super\":[],\"TaggedTemplateExpression\":[\"tag\",\"quasi\"],\"TemplateElement\":[],\"TemplateLiteral\":[\"quasis\",\"expressions\"],\"YieldExpression\":[\"argument\"],\"AnyTypeAnnotation\":[],\"ArrayTypeAnnotation\":[\"elementType\"],\"BooleanTypeAnnotation\":[],\"BooleanLiteralTypeAnnotation\":[],\"NullLiteralTypeAnnotation\":[],\"ClassImplements\":[\"id\",\"typeParameters\"],\"DeclareClass\":[\"id\",\"typeParameters\",\"extends\",\"body\"],\"DeclareFunction\":[\"id\"],\"DeclareInterface\":[\"id\",\"typeParameters\",\"extends\",\"body\"],\"DeclareModule\":[\"id\",\"body\"],\"DeclareModuleExports\":[\"typeAnnotation\"],\"DeclareTypeAlias\":[\"id\",\"typeParameters\",\"right\"],\"DeclareOpaqueType\":[\"id\",\"typeParameters\",\"supertype\"],\"DeclareVariable\":[\"id\"],\"DeclareExportDeclaration\":[\"declaration\",\"specifiers\",\"source\"],\"DeclareExportAllDeclaration\":[\"source\"],\"DeclaredPredicate\":[\"value\"],\"ExistsTypeAnnotation\":[],\"FunctionTypeAnnotation\":[\"typeParameters\",\"params\",\"rest\",\"returnType\"],\"FunctionTypeParam\":[\"name\",\"typeAnnotation\"],\"GenericTypeAnnotation\":[\"id\",\"typeParameters\"],\"InferredPredicate\":[],\"InterfaceExtends\":[\"id\",\"typeParameters\"],\"InterfaceDeclaration\":[\"id\",\"typeParameters\",\"extends\",\"body\"],\"IntersectionTypeAnnotation\":[\"types\"],\"MixedTypeAnnotation\":[],\"EmptyTypeAnnotation\":[],\"NullableTypeAnnotation\":[\"typeAnnotation\"],\"NumberLiteralTypeAnnotation\":[],\"NumberTypeAnnotation\":[],\"ObjectTypeAnnotation\":[\"properties\",\"indexers\",\"callProperties\"],\"ObjectTypeCallProperty\":[\"value\"],\"ObjectTypeIndexer\":[\"id\",\"key\",\"value\"],\"ObjectTypeProperty\":[\"key\",\"value\"],\"ObjectTypeSpreadProperty\":[\"argument\"],\"OpaqueType\":[\"id\",\"typeParameters\",\"supertype\",\"impltype\"],\"QualifiedTypeIdentifier\":[\"id\",\"qualification\"],\"StringLiteralTypeAnnotation\":[],\"StringTypeAnnotation\":[],\"ThisTypeAnnotation\":[],\"TupleTypeAnnotation\":[\"types\"],\"TypeofTypeAnnotation\":[\"argument\"],\"TypeAlias\":[\"id\",\"typeParameters\",\"right\"],\"TypeAnnotation\":[\"typeAnnotation\"],\"TypeCastExpression\":[\"expression\",\"typeAnnotation\"],\"TypeParameter\":[\"bound\",\"default\"],\"TypeParameterDeclaration\":[\"params\"],\"TypeParameterInstantiation\":[\"params\"],\"UnionTypeAnnotation\":[\"types\"],\"VoidTypeAnnotation\":[],\"JSXAttribute\":[\"name\",\"value\"],\"JSXClosingElement\":[\"name\"],\"JSXElement\":[\"openingElement\",\"children\",\"closingElement\"],\"JSXEmptyExpression\":[],\"JSXExpressionContainer\":[\"expression\"],\"JSXSpreadChild\":[\"expression\"],\"JSXIdentifier\":[],\"JSXMemberExpression\":[\"object\",\"property\"],\"JSXNamespacedName\":[\"namespace\",\"name\"],\"JSXOpeningElement\":[\"name\",\"attributes\"],\"JSXSpreadAttribute\":[\"argument\"],\"JSXText\":[],\"JSXFragment\":[\"openingFragment\",\"children\",\"closingFragment\"],\"JSXOpeningFragment\":[],\"JSXClosingFragment\":[],\"Noop\":[],\"ParenthesizedExpression\":[\"expression\"],\"AwaitExpression\":[\"argument\"],\"BindExpression\":[\"object\",\"callee\"],\"ClassProperty\":[\"key\",\"value\",\"typeAnnotation\",\"decorators\"],\"Import\":[],\"Decorator\":[\"expression\"],\"DoExpression\":[\"body\"],\"ExportDefaultSpecifier\":[\"exported\"],\"ExportNamespaceSpecifier\":[\"exported\"],\"TSParameterProperty\":[\"parameter\"],\"TSDeclareFunction\":[\"id\",\"typeParameters\",\"params\",\"returnType\"],\"TSDeclareMethod\":[\"decorators\",\"key\",\"typeParameters\",\"params\",\"returnType\"],\"TSQualifiedName\":[\"left\",\"right\"],\"TSCallSignatureDeclaration\":[\"typeParameters\",\"parameters\",\"typeAnnotation\"],\"TSConstructSignatureDeclaration\":[\"typeParameters\",\"parameters\",\"typeAnnotation\"],\"TSPropertySignature\":[\"key\",\"typeAnnotation\",\"initializer\"],\"TSMethodSignature\":[\"key\",\"typeParameters\",\"parameters\",\"typeAnnotation\"],\"TSIndexSignature\":[\"parameters\",\"typeAnnotation\"],\"TSAnyKeyword\":[],\"TSNumberKeyword\":[],\"TSObjectKeyword\":[],\"TSBooleanKeyword\":[],\"TSStringKeyword\":[],\"TSSymbolKeyword\":[],\"TSVoidKeyword\":[],\"TSUndefinedKeyword\":[],\"TSNullKeyword\":[],\"TSNeverKeyword\":[],\"TSThisType\":[],\"TSFunctionType\":[\"typeParameters\",\"typeAnnotation\"],\"TSConstructorType\":[\"typeParameters\",\"typeAnnotation\"],\"TSTypeReference\":[\"typeName\",\"typeParameters\"],\"TSTypePredicate\":[\"parameterName\",\"typeAnnotation\"],\"TSTypeQuery\":[\"exprName\"],\"TSTypeLiteral\":[\"members\"],\"TSArrayType\":[\"elementType\"],\"TSTupleType\":[\"elementTypes\"],\"TSUnionType\":[\"types\"],\"TSIntersectionType\":[\"types\"],\"TSParenthesizedType\":[\"typeAnnotation\"],\"TSTypeOperator\":[\"typeAnnotation\"],\"TSIndexedAccessType\":[\"objectType\",\"indexType\"],\"TSMappedType\":[\"typeParameter\",\"typeAnnotation\"],\"TSLiteralType\":[\"literal\"],\"TSExpressionWithTypeArguments\":[\"expression\",\"typeParameters\"],\"TSInterfaceDeclaration\":[\"id\",\"typeParameters\",\"extends\",\"body\"],\"TSInterfaceBody\":[\"body\"],\"TSTypeAliasDeclaration\":[\"id\",\"typeParameters\",\"typeAnnotation\"],\"TSAsExpression\":[\"expression\",\"typeAnnotation\"],\"TSTypeAssertion\":[\"typeAnnotation\",\"expression\"],\"TSEnumDeclaration\":[\"id\",\"members\"],\"TSEnumMember\":[\"id\",\"initializer\"],\"TSModuleDeclaration\":[\"id\",\"body\"],\"TSModuleBlock\":[\"body\"],\"TSImportEqualsDeclaration\":[\"id\",\"moduleReference\"],\"TSExternalModuleReference\":[\"expression\"],\"TSNonNullExpression\":[\"expression\"],\"TSExportAssignment\":[\"expression\"],\"TSNamespaceExportDeclaration\":[\"id\"],\"TSTypeAnnotation\":[\"typeAnnotation\"],\"TSTypeParameterInstantiation\":[\"params\"],\"TSTypeParameterDeclaration\":[\"params\"],\"TSTypeParameter\":[\"constraint\",\"default\"]}",
+    _powerAssertRecorder = function () { function PowerAssertRecorder() { this.captured = []; } PowerAssertRecorder.prototype._capt = function _capt(value, espath) { this.captured.push({ value: value, espath: espath }); return value; }; PowerAssertRecorder.prototype._expr = function _expr(value, source) { var capturedValues = this.captured; this.captured = []; return { powerAssertContext: { value: value, events: capturedValues }, source: source }; }; return PowerAssertRecorder; }();
 
-var _sinon = require('sinon');
+function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) { var desc = Object.defineProperty && Object.getOwnPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : {}; if (desc.get || desc.set) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } } newObj.default = obj; return newObj; } }
 
-var sinon = _interopRequireWildcard(_sinon);
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
 
-var _Foo = require('../src/Foo');
+function _instanceof(left, right) { if (right != null && typeof Symbol !== "undefined" && right[Symbol.hasInstance]) { return right[Symbol.hasInstance](left); } else { return left instanceof right; } }
 
-var _Foo2 = _interopRequireDefault(_Foo);
+function _typeof(obj) { if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }
 
-function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key]; } } newObj.default = obj; return newObj; } }
+function _classCallCheck(instance, Constructor) { if (!_instanceof(instance, Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
 
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }
 
-function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
+function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }
 
-function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }
+function _possibleConstructorReturn(self, call) { if (call && (_typeof(call) === "object" || typeof call === "function")) { return call; } if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return self; }
 
-function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }
+function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function"); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }
 
-var ToDoItem = function (_React$Component) {
-    _inherits(ToDoItem, _React$Component);
+var ToDoItem =
+/*#__PURE__*/
+function (_React$Component) {
+  _inherits(ToDoItem, _React$Component);
 
-    function ToDoItem() {
-        _classCallCheck(this, ToDoItem);
+  function ToDoItem() {
+    _classCallCheck(this, ToDoItem);
 
-        return _possibleConstructorReturn(this, (ToDoItem.__proto__ || Object.getPrototypeOf(ToDoItem)).apply(this, arguments));
-    }
+    return _possibleConstructorReturn(this, (ToDoItem.__proto__ || Object.getPrototypeOf(ToDoItem)).apply(this, arguments));
+  }
 
-    _createClass(ToDoItem, [{
-        key: 'render',
-        value: function render() {
-            var _props = this.props,
-                item = _props.item,
-                onCompleteChange = _props.onCompleteChange;
-
-            return _react2.default.createElement(
-                'div',
-                { className: 'item' },
-                _react2.default.createElement(
-                    'span',
-                    { className: 'item-mark' },
-                    item.complete ? '✓' : '•'
-                ),
-                _react2.default.createElement(
-                    'span',
-                    { className: 'item-title' },
-                    item.title
-                ),
-                _react2.default.createElement(
-                    'a',
-                    { className: 'item-button', onClick: function onClick() {
-                            return onCompleteChange(item, !item.complete);
-                        } },
-                    'Mark as ',
-                    item.complete ? 'Pending' : 'Complete'
-                )
-            );
+  _createClass(ToDoItem, [{
+    key: "render",
+    value: function render() {
+      var _props = this.props,
+          item = _props.item,
+          onCompleteChange = _props.onCompleteChange;
+      return _react.default.createElement("div", {
+        className: "item"
+      }, _react.default.createElement("span", {
+        className: "item-mark"
+      }, item.complete ? '✓' : '•'), _react.default.createElement("span", {
+        className: "item-title"
+      }, item.title), _react.default.createElement("a", {
+        className: "item-button",
+        onClick: function onClick() {
+          return onCompleteChange(item, !item.complete);
         }
-    }]);
+      }, "Mark as ", item.complete ? 'Pending' : 'Complete'));
+    }
+  }]);
 
-    return ToDoItem;
-}(_react2.default.Component);
+  return ToDoItem;
+}(_react.default.Component);
 
-function mockItem(overrides) {
-    // … create mock ToDo Item
+function mockItem(overrides) {// … create mock ToDo Item
 }
 
 describe('<ToDoItem />', function () {
-    it('renders the title', function () {
-        var _rec = new _powerAssertRecorder();
-
-        var item = mockItem();
-        (0, _powerAssert2.default)(_rec._expr(_rec._capt(_rec._capt(_rec._capt(_rec._capt((0, _enzyme.shallow)(_react2.default.createElement(ToDoItem, { item: item })), 'arguments/0/left/callee/object/callee/object').text(), 'arguments/0/left/callee/object').indexOf(_rec._capt(_rec._capt(item, 'arguments/0/left/arguments/0/object').title, 'arguments/0/left/arguments/0')), 'arguments/0/left') !== _rec._capt(-1, 'arguments/0/right'), 'arguments/0'), {
-            content: 'assert(shallow(<ToDoItem item={item} />).text().indexOf(item.title) !== -1)',
-            filepath: 'test/fixtures/React/fixture.js',
-            line: 29,
-            ast: '{"type":"CallExpression","callee":{"type":"Identifier","name":"assert","range":[0,6]},"arguments":[{"type":"BinaryExpression","operator":"!==","left":{"type":"CallExpression","callee":{"type":"MemberExpression","object":{"type":"CallExpression","callee":{"type":"MemberExpression","object":{"type":"CallExpression","callee":{"type":"Identifier","name":"shallow","range":[7,14]},"arguments":[{"type":"JSXElement","openingElement":{"type":"JSXOpeningElement","name":{"type":"JSXIdentifier","name":"ToDoItem","range":[16,24]},"attributes":[{"type":"JSXAttribute","name":{"type":"JSXIdentifier","name":"item","range":[25,29]},"value":{"type":"JSXExpressionContainer","expression":{"type":"Identifier","name":"item","range":[31,35]},"range":[30,36]},"range":[25,36]}],"selfClosing":true,"range":[15,39]},"closingElement":null,"children":[],"range":[15,39]}],"range":[7,40]},"property":{"type":"Identifier","name":"text","range":[41,45]},"computed":false,"range":[7,45]},"arguments":[],"range":[7,47]},"property":{"type":"Identifier","name":"indexOf","range":[48,55]},"computed":false,"range":[7,55]},"arguments":[{"type":"MemberExpression","object":{"type":"Identifier","name":"item","range":[56,60]},"property":{"type":"Identifier","name":"title","range":[61,66]},"computed":false,"range":[56,66]}],"range":[7,67]},"right":{"type":"UnaryExpression","operator":"-","argument":{"type":"NumericLiteral","value":1,"range":[73,74]},"prefix":true,"range":[72,74]},"range":[7,74]}],"range":[0,75]}',
-            tokens: '[{"type":{"label":"name"},"value":"assert","range":[0,6]},{"type":{"label":"("},"range":[6,7]},{"type":{"label":"name"},"value":"shallow","range":[7,14]},{"type":{"label":"("},"range":[14,15]},{"type":{"label":"jsxTagStart"},"range":[15,16]},{"type":{"label":"jsxName"},"value":"ToDoItem","range":[16,24]},{"type":{"label":"jsxName"},"value":"item","range":[25,29]},{"type":{"label":"="},"value":"=","range":[29,30]},{"type":{"label":"{"},"range":[30,31]},{"type":{"label":"name"},"value":"item","range":[31,35]},{"type":{"label":"}"},"range":[35,36]},{"type":{"label":"/"},"value":"/","range":[37,38]},{"type":{"label":"jsxTagEnd"},"range":[38,39]},{"type":{"label":")"},"range":[39,40]},{"type":{"label":"."},"range":[40,41]},{"type":{"label":"name"},"value":"text","range":[41,45]},{"type":{"label":"("},"range":[45,46]},{"type":{"label":")"},"range":[46,47]},{"type":{"label":"."},"range":[47,48]},{"type":{"label":"name"},"value":"indexOf","range":[48,55]},{"type":{"label":"("},"range":[55,56]},{"type":{"label":"name"},"value":"item","range":[56,60]},{"type":{"label":"."},"range":[60,61]},{"type":{"label":"name"},"value":"title","range":[61,66]},{"type":{"label":")"},"range":[66,67]},{"type":{"label":"==/!="},"value":"!==","range":[68,71]},{"type":{"label":"+/-"},"value":"-","range":[72,73]},{"type":{"label":"num"},"value":1,"range":[73,74]},{"type":{"label":")"},"range":[74,75]}]',
-            visitorKeys: _powerAssertVisitorKeys
-        }));
-    });
-    it('renders a check mark when complete', function () {
-        var _rec2 = new _powerAssertRecorder();
-
-        var item = mockItem({ complete: true });
-        (0, _powerAssert2.default)(_rec2._expr(_rec2._capt(_rec2._capt(_rec2._capt(_rec2._capt((0, _enzyme.shallow)(_react2.default.createElement(ToDoItem, { item: item })), 'arguments/0/left/callee/object/callee/object').find('.item-mark'), 'arguments/0/left/callee/object').text(), 'arguments/0/left') === '✓', 'arguments/0'), {
-            content: 'assert(shallow(<ToDoItem item={item} />).find(\'.item-mark\').text() === \'\u2713\')',
-            filepath: 'test/fixtures/React/fixture.js',
-            line: 33,
-            ast: '{"type":"CallExpression","callee":{"type":"Identifier","name":"assert","range":[0,6]},"arguments":[{"type":"BinaryExpression","operator":"===","left":{"type":"CallExpression","callee":{"type":"MemberExpression","object":{"type":"CallExpression","callee":{"type":"MemberExpression","object":{"type":"CallExpression","callee":{"type":"Identifier","name":"shallow","range":[7,14]},"arguments":[{"type":"JSXElement","openingElement":{"type":"JSXOpeningElement","name":{"type":"JSXIdentifier","name":"ToDoItem","range":[16,24]},"attributes":[{"type":"JSXAttribute","name":{"type":"JSXIdentifier","name":"item","range":[25,29]},"value":{"type":"JSXExpressionContainer","expression":{"type":"Identifier","name":"item","range":[31,35]},"range":[30,36]},"range":[25,36]}],"selfClosing":true,"range":[15,39]},"closingElement":null,"children":[],"range":[15,39]}],"range":[7,40]},"property":{"type":"Identifier","name":"find","range":[41,45]},"computed":false,"range":[7,45]},"arguments":[{"type":"StringLiteral","value":".item-mark","range":[46,58]}],"range":[7,59]},"property":{"type":"Identifier","name":"text","range":[60,64]},"computed":false,"range":[7,64]},"arguments":[],"range":[7,66]},"right":{"type":"StringLiteral","value":"\u2713","range":[71,74]},"range":[7,74]}],"range":[0,75]}',
-            tokens: '[{"type":{"label":"name"},"value":"assert","range":[0,6]},{"type":{"label":"("},"range":[6,7]},{"type":{"label":"name"},"value":"shallow","range":[7,14]},{"type":{"label":"("},"range":[14,15]},{"type":{"label":"jsxTagStart"},"range":[15,16]},{"type":{"label":"jsxName"},"value":"ToDoItem","range":[16,24]},{"type":{"label":"jsxName"},"value":"item","range":[25,29]},{"type":{"label":"="},"value":"=","range":[29,30]},{"type":{"label":"{"},"range":[30,31]},{"type":{"label":"name"},"value":"item","range":[31,35]},{"type":{"label":"}"},"range":[35,36]},{"type":{"label":"/"},"value":"/","range":[37,38]},{"type":{"label":"jsxTagEnd"},"range":[38,39]},{"type":{"label":")"},"range":[39,40]},{"type":{"label":"."},"range":[40,41]},{"type":{"label":"name"},"value":"find","range":[41,45]},{"type":{"label":"("},"range":[45,46]},{"type":{"label":"string"},"value":".item-mark","range":[46,58]},{"type":{"label":")"},"range":[58,59]},{"type":{"label":"."},"range":[59,60]},{"type":{"label":"name"},"value":"text","range":[60,64]},{"type":{"label":"("},"range":[64,65]},{"type":{"label":")"},"range":[65,66]},{"type":{"label":"==/!="},"value":"===","range":[67,70]},{"type":{"label":"string"},"value":"\u2713","range":[71,74]},{"type":{"label":")"},"range":[74,75]}]',
-            visitorKeys: _powerAssertVisitorKeys
-        }));
-    });
-    it('renders a bullet when not complete', function () {
-        var _rec3 = new _powerAssertRecorder();
-
-        var item = mockItem({ complete: false });
-        (0, _powerAssert2.default)(_rec3._expr(_rec3._capt(_rec3._capt(_rec3._capt(_rec3._capt((0, _enzyme.shallow)(_react2.default.createElement(ToDoItem, { item: item })), 'arguments/0/left/callee/object/callee/object').find('.item-mark'), 'arguments/0/left/callee/object').text(), 'arguments/0/left') === '•', 'arguments/0'), {
-            content: 'assert(shallow(<ToDoItem item={item} />).find(\'.item-mark\').text() === \'\u2022\')',
-            filepath: 'test/fixtures/React/fixture.js',
-            line: 37,
-            ast: '{"type":"CallExpression","callee":{"type":"Identifier","name":"assert","range":[0,6]},"arguments":[{"type":"BinaryExpression","operator":"===","left":{"type":"CallExpression","callee":{"type":"MemberExpression","object":{"type":"CallExpression","callee":{"type":"MemberExpression","object":{"type":"CallExpression","callee":{"type":"Identifier","name":"shallow","range":[7,14]},"arguments":[{"type":"JSXElement","openingElement":{"type":"JSXOpeningElement","name":{"type":"JSXIdentifier","name":"ToDoItem","range":[16,24]},"attributes":[{"type":"JSXAttribute","name":{"type":"JSXIdentifier","name":"item","range":[25,29]},"value":{"type":"JSXExpressionContainer","expression":{"type":"Identifier","name":"item","range":[31,35]},"range":[30,36]},"range":[25,36]}],"selfClosing":true,"range":[15,39]},"closingElement":null,"children":[],"range":[15,39]}],"range":[7,40]},"property":{"type":"Identifier","name":"find","range":[41,45]},"computed":false,"range":[7,45]},"arguments":[{"type":"StringLiteral","value":".item-mark","range":[46,58]}],"range":[7,59]},"property":{"type":"Identifier","name":"text","range":[60,64]},"computed":false,"range":[7,64]},"arguments":[],"range":[7,66]},"right":{"type":"StringLiteral","value":"\u2022","range":[71,74]},"range":[7,74]}],"range":[0,75]}',
-            tokens: '[{"type":{"label":"name"},"value":"assert","range":[0,6]},{"type":{"label":"("},"range":[6,7]},{"type":{"label":"name"},"value":"shallow","range":[7,14]},{"type":{"label":"("},"range":[14,15]},{"type":{"label":"jsxTagStart"},"range":[15,16]},{"type":{"label":"jsxName"},"value":"ToDoItem","range":[16,24]},{"type":{"label":"jsxName"},"value":"item","range":[25,29]},{"type":{"label":"="},"value":"=","range":[29,30]},{"type":{"label":"{"},"range":[30,31]},{"type":{"label":"name"},"value":"item","range":[31,35]},{"type":{"label":"}"},"range":[35,36]},{"type":{"label":"/"},"value":"/","range":[37,38]},{"type":{"label":"jsxTagEnd"},"range":[38,39]},{"type":{"label":")"},"range":[39,40]},{"type":{"label":"."},"range":[40,41]},{"type":{"label":"name"},"value":"find","range":[41,45]},{"type":{"label":"("},"range":[45,46]},{"type":{"label":"string"},"value":".item-mark","range":[46,58]},{"type":{"label":")"},"range":[58,59]},{"type":{"label":"."},"range":[59,60]},{"type":{"label":"name"},"value":"text","range":[60,64]},{"type":{"label":"("},"range":[64,65]},{"type":{"label":")"},"range":[65,66]},{"type":{"label":"==/!="},"value":"===","range":[67,70]},{"type":{"label":"string"},"value":"\u2022","range":[71,74]},{"type":{"label":")"},"range":[74,75]}]',
-            visitorKeys: _powerAssertVisitorKeys
-        }));
+  it('renders the title', function () {
+    var _rec = new _powerAssertRecorder();
+
+    var item = mockItem();
+    (0, _powerAssert.default)(_rec._expr(_rec._capt(_rec._capt(_rec._capt(_rec._capt((0, _enzyme.shallow)(_react.default.createElement(ToDoItem, {
+      item: item
+    })), "arguments/0/left/callee/object/callee/object").text(), "arguments/0/left/callee/object").indexOf(_rec._capt(_rec._capt(item, "arguments/0/left/arguments/0/object").title, "arguments/0/left/arguments/0")), "arguments/0/left") !== _rec._capt(-1, "arguments/0/right"), "arguments/0"), {
+      content: "assert(shallow(<ToDoItem item={item} />).text().indexOf(item.title) !== -1)",
+      filepath: "test/fixtures/React/fixture.js",
+      line: 29,
+      ast: "{\"type\":\"CallExpression\",\"callee\":{\"type\":\"Identifier\",\"name\":\"assert\",\"range\":[0,6]},\"arguments\":[{\"type\":\"BinaryExpression\",\"operator\":\"!==\",\"left\":{\"type\":\"CallExpression\",\"callee\":{\"type\":\"MemberExpression\",\"object\":{\"type\":\"CallExpression\",\"callee\":{\"type\":\"MemberExpression\",\"object\":{\"type\":\"CallExpression\",\"callee\":{\"type\":\"Identifier\",\"name\":\"shallow\",\"range\":[7,14]},\"arguments\":[{\"type\":\"JSXElement\",\"openingElement\":{\"type\":\"JSXOpeningElement\",\"name\":{\"type\":\"JSXIdentifier\",\"name\":\"ToDoItem\",\"range\":[16,24]},\"attributes\":[{\"type\":\"JSXAttribute\",\"name\":{\"type\":\"JSXIdentifier\",\"name\":\"item\",\"range\":[25,29]},\"value\":{\"type\":\"JSXExpressionContainer\",\"expression\":{\"type\":\"Identifier\",\"name\":\"item\",\"range\":[31,35]},\"range\":[30,36]},\"range\":[25,36]}],\"selfClosing\":true,\"range\":[15,39]},\"closingElement\":null,\"children\":[],\"range\":[15,39]}],\"range\":[7,40]},\"property\":{\"type\":\"Identifier\",\"name\":\"text\",\"range\":[41,45]},\"computed\":false,\"range\":[7,45]},\"arguments\":[],\"range\":[7,47]},\"property\":{\"type\":\"Identifier\",\"name\":\"indexOf\",\"range\":[48,55]},\"computed\":false,\"range\":[7,55]},\"arguments\":[{\"type\":\"MemberExpression\",\"object\":{\"type\":\"Identifier\",\"name\":\"item\",\"range\":[56,60]},\"property\":{\"type\":\"Identifier\",\"name\":\"title\",\"range\":[61,66]},\"computed\":false,\"range\":[56,66]}],\"range\":[7,67]},\"right\":{\"type\":\"UnaryExpression\",\"operator\":\"-\",\"argument\":{\"type\":\"NumericLiteral\",\"value\":1,\"range\":[73,74]},\"prefix\":true,\"range\":[72,74]},\"range\":[7,74]}],\"range\":[0,75]}",
+      tokens: "[{\"type\":{\"label\":\"name\"},\"value\":\"assert\",\"range\":[0,6]},{\"type\":{\"label\":\"(\"},\"range\":[6,7]},{\"type\":{\"label\":\"name\"},\"value\":\"shallow\",\"range\":[7,14]},{\"type\":{\"label\":\"(\"},\"range\":[14,15]},{\"type\":{\"label\":\"jsxTagStart\"},\"range\":[15,16]},{\"type\":{\"label\":\"jsxName\"},\"value\":\"ToDoItem\",\"range\":[16,24]},{\"type\":{\"label\":\"jsxName\"},\"value\":\"item\",\"range\":[25,29]},{\"type\":{\"label\":\"=\"},\"value\":\"=\",\"range\":[29,30]},{\"type\":{\"label\":\"{\"},\"range\":[30,31]},{\"type\":{\"label\":\"name\"},\"value\":\"item\",\"range\":[31,35]},{\"type\":{\"label\":\"}\"},\"range\":[35,36]},{\"type\":{\"label\":\"/\"},\"value\":\"/\",\"range\":[37,38]},{\"type\":{\"label\":\"jsxTagEnd\"},\"range\":[38,39]},{\"type\":{\"label\":\")\"},\"range\":[39,40]},{\"type\":{\"label\":\".\"},\"range\":[40,41]},{\"type\":{\"label\":\"name\"},\"value\":\"text\",\"range\":[41,45]},{\"type\":{\"label\":\"(\"},\"range\":[45,46]},{\"type\":{\"label\":\")\"},\"range\":[46,47]},{\"type\":{\"label\":\".\"},\"range\":[47,48]},{\"type\":{\"label\":\"name\"},\"value\":\"indexOf\",\"range\":[48,55]},{\"type\":{\"label\":\"(\"},\"range\":[55,56]},{\"type\":{\"label\":\"name\"},\"value\":\"item\",\"range\":[56,60]},{\"type\":{\"label\":\".\"},\"range\":[60,61]},{\"type\":{\"label\":\"name\"},\"value\":\"title\",\"range\":[61,66]},{\"type\":{\"label\":\")\"},\"range\":[66,67]},{\"type\":{\"label\":\"==/!=\"},\"value\":\"!==\",\"range\":[68,71]},{\"type\":{\"label\":\"+/-\"},\"value\":\"-\",\"range\":[72,73]},{\"type\":{\"label\":\"num\"},\"value\":1,\"range\":[73,74]},{\"type\":{\"label\":\")\"},\"range\":[74,75]}]",
+      visitorKeys: _powerAssertVisitorKeys
+    }));
+  });
+  it('renders a check mark when complete', function () {
+    var _rec2 = new _powerAssertRecorder();
+
+    var item = mockItem({
+      complete: true
     });
-    it('calls onCompleteChange handler with the right arguments when clicked', function () {
-        var _rec4 = new _powerAssertRecorder(),
-            _rec5 = new _powerAssertRecorder();
-
-        var spy = sinon.spy();
-        var item = mockItem();
-        var wrapper = (0, _enzyme.shallow)(_react2.default.createElement(ToDoItem, { item: item, onCompleteChange: spy }));
-        wrapper.find('.item-button').simulate('click');
-        (0, _powerAssert2.default)(_rec4._expr(_rec4._capt(_rec4._capt(_rec4._capt(spy, 'arguments/0/left/object').calledOnce, 'arguments/0/left') === true, 'arguments/0'), {
-            content: 'assert(spy.calledOnce === true)',
-            filepath: 'test/fixtures/React/fixture.js',
-            line: 44,
-            ast: '{"type":"CallExpression","callee":{"type":"Identifier","name":"assert","range":[0,6]},"arguments":[{"type":"BinaryExpression","operator":"===","left":{"type":"MemberExpression","object":{"type":"Identifier","name":"spy","range":[7,10]},"property":{"type":"Identifier","name":"calledOnce","range":[11,21]},"computed":false,"range":[7,21]},"right":{"type":"BooleanLiteral","value":true,"range":[26,30]},"range":[7,30]}],"range":[0,31]}',
-            tokens: '[{"type":{"label":"name"},"value":"assert","range":[0,6]},{"type":{"label":"("},"range":[6,7]},{"type":{"label":"name"},"value":"spy","range":[7,10]},{"type":{"label":"."},"range":[10,11]},{"type":{"label":"name"},"value":"calledOnce","range":[11,21]},{"type":{"label":"==/!="},"value":"===","range":[22,25]},{"type":{"label":"true"},"value":"true","range":[26,30]},{"type":{"label":")"},"range":[30,31]}]',
-            visitorKeys: _powerAssertVisitorKeys
-        }));
-        (0, _powerAssert2.default)(_rec5._expr(_rec5._capt(_rec5._capt(_rec5._capt(spy, 'arguments/0/left/callee/object').calledWith(_rec5._capt(item, 'arguments/0/left/arguments/0'), false), 'arguments/0/left') === true, 'arguments/0'), {
-            content: 'assert(spy.calledWith(item, false) === true)',
-            filepath: 'test/fixtures/React/fixture.js',
-            line: 45,
-            ast: '{"type":"CallExpression","callee":{"type":"Identifier","name":"assert","range":[0,6]},"arguments":[{"type":"BinaryExpression","operator":"===","left":{"type":"CallExpression","callee":{"type":"MemberExpression","object":{"type":"Identifier","name":"spy","range":[7,10]},"property":{"type":"Identifier","name":"calledWith","range":[11,21]},"computed":false,"range":[7,21]},"arguments":[{"type":"Identifier","name":"item","range":[22,26]},{"type":"BooleanLiteral","value":false,"range":[28,33]}],"range":[7,34]},"right":{"type":"BooleanLiteral","value":true,"range":[39,43]},"range":[7,43]}],"range":[0,44]}',
-            tokens: '[{"type":{"label":"name"},"value":"assert","range":[0,6]},{"type":{"label":"("},"range":[6,7]},{"type":{"label":"name"},"value":"spy","range":[7,10]},{"type":{"label":"."},"range":[10,11]},{"type":{"label":"name"},"value":"calledWith","range":[11,21]},{"type":{"label":"("},"range":[21,22]},{"type":{"label":"name"},"value":"item","range":[22,26]},{"type":{"label":","},"range":[26,27]},{"type":{"label":"false"},"value":"false","range":[28,33]},{"type":{"label":")"},"range":[33,34]},{"type":{"label":"==/!="},"value":"===","range":[35,38]},{"type":{"label":"true"},"value":"true","range":[39,43]},{"type":{"label":")"},"range":[43,44]}]',
-            visitorKeys: _powerAssertVisitorKeys
-        }));
+    (0, _powerAssert.default)(_rec2._expr(_rec2._capt(_rec2._capt(_rec2._capt(_rec2._capt((0, _enzyme.shallow)(_react.default.createElement(ToDoItem, {
+      item: item
+    })), "arguments/0/left/callee/object/callee/object").find('.item-mark'), "arguments/0/left/callee/object").text(), "arguments/0/left") === '✓', "arguments/0"), {
+      content: "assert(shallow(<ToDoItem item={item} />).find('.item-mark').text() === '\u2713')",
+      filepath: "test/fixtures/React/fixture.js",
+      line: 33,
+      ast: "{\"type\":\"CallExpression\",\"callee\":{\"type\":\"Identifier\",\"name\":\"assert\",\"range\":[0,6]},\"arguments\":[{\"type\":\"BinaryExpression\",\"operator\":\"===\",\"left\":{\"type\":\"CallExpression\",\"callee\":{\"type\":\"MemberExpression\",\"object\":{\"type\":\"CallExpression\",\"callee\":{\"type\":\"MemberExpression\",\"object\":{\"type\":\"CallExpression\",\"callee\":{\"type\":\"Identifier\",\"name\":\"shallow\",\"range\":[7,14]},\"arguments\":[{\"type\":\"JSXElement\",\"openingElement\":{\"type\":\"JSXOpeningElement\",\"name\":{\"type\":\"JSXIdentifier\",\"name\":\"ToDoItem\",\"range\":[16,24]},\"attributes\":[{\"type\":\"JSXAttribute\",\"name\":{\"type\":\"JSXIdentifier\",\"name\":\"item\",\"range\":[25,29]},\"value\":{\"type\":\"JSXExpressionContainer\",\"expression\":{\"type\":\"Identifier\",\"name\":\"item\",\"range\":[31,35]},\"range\":[30,36]},\"range\":[25,36]}],\"selfClosing\":true,\"range\":[15,39]},\"closingElement\":null,\"children\":[],\"range\":[15,39]}],\"range\":[7,40]},\"property\":{\"type\":\"Identifier\",\"name\":\"find\",\"range\":[41,45]},\"computed\":false,\"range\":[7,45]},\"arguments\":[{\"type\":\"StringLiteral\",\"value\":\".item-mark\",\"range\":[46,58]}],\"range\":[7,59]},\"property\":{\"type\":\"Identifier\",\"name\":\"text\",\"range\":[60,64]},\"computed\":false,\"range\":[7,64]},\"arguments\":[],\"range\":[7,66]},\"right\":{\"type\":\"StringLiteral\",\"value\":\"\u2713\",\"range\":[71,74]},\"range\":[7,74]}],\"range\":[0,75]}",
+      tokens: "[{\"type\":{\"label\":\"name\"},\"value\":\"assert\",\"range\":[0,6]},{\"type\":{\"label\":\"(\"},\"range\":[6,7]},{\"type\":{\"label\":\"name\"},\"value\":\"shallow\",\"range\":[7,14]},{\"type\":{\"label\":\"(\"},\"range\":[14,15]},{\"type\":{\"label\":\"jsxTagStart\"},\"range\":[15,16]},{\"type\":{\"label\":\"jsxName\"},\"value\":\"ToDoItem\",\"range\":[16,24]},{\"type\":{\"label\":\"jsxName\"},\"value\":\"item\",\"range\":[25,29]},{\"type\":{\"label\":\"=\"},\"value\":\"=\",\"range\":[29,30]},{\"type\":{\"label\":\"{\"},\"range\":[30,31]},{\"type\":{\"label\":\"name\"},\"value\":\"item\",\"range\":[31,35]},{\"type\":{\"label\":\"}\"},\"range\":[35,36]},{\"type\":{\"label\":\"/\"},\"value\":\"/\",\"range\":[37,38]},{\"type\":{\"label\":\"jsxTagEnd\"},\"range\":[38,39]},{\"type\":{\"label\":\")\"},\"range\":[39,40]},{\"type\":{\"label\":\".\"},\"range\":[40,41]},{\"type\":{\"label\":\"name\"},\"value\":\"find\",\"range\":[41,45]},{\"type\":{\"label\":\"(\"},\"range\":[45,46]},{\"type\":{\"label\":\"string\"},\"value\":\".item-mark\",\"range\":[46,58]},{\"type\":{\"label\":\")\"},\"range\":[58,59]},{\"type\":{\"label\":\".\"},\"range\":[59,60]},{\"type\":{\"label\":\"name\"},\"value\":\"text\",\"range\":[60,64]},{\"type\":{\"label\":\"(\"},\"range\":[64,65]},{\"type\":{\"label\":\")\"},\"range\":[65,66]},{\"type\":{\"label\":\"==/!=\"},\"value\":\"===\",\"range\":[67,70]},{\"type\":{\"label\":\"string\"},\"value\":\"\u2713\",\"range\":[71,74]},{\"type\":{\"label\":\")\"},\"range\":[74,75]}]",
+      visitorKeys: _powerAssertVisitorKeys
+    }));
+  });
+  it('renders a bullet when not complete', function () {
+    var _rec3 = new _powerAssertRecorder();
+
+    var item = mockItem({
+      complete: false
     });
+    (0, _powerAssert.default)(_rec3._expr(_rec3._capt(_rec3._capt(_rec3._capt(_rec3._capt((0, _enzyme.shallow)(_react.default.createElement(ToDoItem, {
+      item: item
+    })), "arguments/0/left/callee/object/callee/object").find('.item-mark'), "arguments/0/left/callee/object").text(), "arguments/0/left") === '•', "arguments/0"), {
+      content: "assert(shallow(<ToDoItem item={item} />).find('.item-mark').text() === '\u2022')",
+      filepath: "test/fixtures/React/fixture.js",
+      line: 37,
+      ast: "{\"type\":\"CallExpression\",\"callee\":{\"type\":\"Identifier\",\"name\":\"assert\",\"range\":[0,6]},\"arguments\":[{\"type\":\"BinaryExpression\",\"operator\":\"===\",\"left\":{\"type\":\"CallExpression\",\"callee\":{\"type\":\"MemberExpression\",\"object\":{\"type\":\"CallExpression\",\"callee\":{\"type\":\"MemberExpression\",\"object\":{\"type\":\"CallExpression\",\"callee\":{\"type\":\"Identifier\",\"name\":\"shallow\",\"range\":[7,14]},\"arguments\":[{\"type\":\"JSXElement\",\"openingElement\":{\"type\":\"JSXOpeningElement\",\"name\":{\"type\":\"JSXIdentifier\",\"name\":\"ToDoItem\",\"range\":[16,24]},\"attributes\":[{\"type\":\"JSXAttribute\",\"name\":{\"type\":\"JSXIdentifier\",\"name\":\"item\",\"range\":[25,29]},\"value\":{\"type\":\"JSXExpressionContainer\",\"expression\":{\"type\":\"Identifier\",\"name\":\"item\",\"range\":[31,35]},\"range\":[30,36]},\"range\":[25,36]}],\"selfClosing\":true,\"range\":[15,39]},\"closingElement\":null,\"children\":[],\"range\":[15,39]}],\"range\":[7,40]},\"property\":{\"type\":\"Identifier\",\"name\":\"find\",\"range\":[41,45]},\"computed\":false,\"range\":[7,45]},\"arguments\":[{\"type\":\"StringLiteral\",\"value\":\".item-mark\",\"range\":[46,58]}],\"range\":[7,59]},\"property\":{\"type\":\"Identifier\",\"name\":\"text\",\"range\":[60,64]},\"computed\":false,\"range\":[7,64]},\"arguments\":[],\"range\":[7,66]},\"right\":{\"type\":\"StringLiteral\",\"value\":\"\u2022\",\"range\":[71,74]},\"range\":[7,74]}],\"range\":[0,75]}",
+      tokens: "[{\"type\":{\"label\":\"name\"},\"value\":\"assert\",\"range\":[0,6]},{\"type\":{\"label\":\"(\"},\"range\":[6,7]},{\"type\":{\"label\":\"name\"},\"value\":\"shallow\",\"range\":[7,14]},{\"type\":{\"label\":\"(\"},\"range\":[14,15]},{\"type\":{\"label\":\"jsxTagStart\"},\"range\":[15,16]},{\"type\":{\"label\":\"jsxName\"},\"value\":\"ToDoItem\",\"range\":[16,24]},{\"type\":{\"label\":\"jsxName\"},\"value\":\"item\",\"range\":[25,29]},{\"type\":{\"label\":\"=\"},\"value\":\"=\",\"range\":[29,30]},{\"type\":{\"label\":\"{\"},\"range\":[30,31]},{\"type\":{\"label\":\"name\"},\"value\":\"item\",\"range\":[31,35]},{\"type\":{\"label\":\"}\"},\"range\":[35,36]},{\"type\":{\"label\":\"/\"},\"value\":\"/\",\"range\":[37,38]},{\"type\":{\"label\":\"jsxTagEnd\"},\"range\":[38,39]},{\"type\":{\"label\":\")\"},\"range\":[39,40]},{\"type\":{\"label\":\".\"},\"range\":[40,41]},{\"type\":{\"label\":\"name\"},\"value\":\"find\",\"range\":[41,45]},{\"type\":{\"label\":\"(\"},\"range\":[45,46]},{\"type\":{\"label\":\"string\"},\"value\":\".item-mark\",\"range\":[46,58]},{\"type\":{\"label\":\")\"},\"range\":[58,59]},{\"type\":{\"label\":\".\"},\"range\":[59,60]},{\"type\":{\"label\":\"name\"},\"value\":\"text\",\"range\":[60,64]},{\"type\":{\"label\":\"(\"},\"range\":[64,65]},{\"type\":{\"label\":\")\"},\"range\":[65,66]},{\"type\":{\"label\":\"==/!=\"},\"value\":\"===\",\"range\":[67,70]},{\"type\":{\"label\":\"string\"},\"value\":\"\u2022\",\"range\":[71,74]},{\"type\":{\"label\":\")\"},\"range\":[74,75]}]",
+      visitorKeys: _powerAssertVisitorKeys
+    }));
+  });
+  it('calls onCompleteChange handler with the right arguments when clicked', function () {
+    var _rec4 = new _powerAssertRecorder(),
+        _rec5 = new _powerAssertRecorder();
+
+    var spy = sinon.spy();
+    var item = mockItem();
+    var wrapper = (0, _enzyme.shallow)(_react.default.createElement(ToDoItem, {
+      item: item,
+      onCompleteChange: spy
+    }));
+    wrapper.find('.item-button').simulate('click');
+    (0, _powerAssert.default)(_rec4._expr(_rec4._capt(_rec4._capt(_rec4._capt(spy, "arguments/0/left/object").calledOnce, "arguments/0/left") === true, "arguments/0"), {
+      content: "assert(spy.calledOnce === true)",
+      filepath: "test/fixtures/React/fixture.js",
+      line: 44,
+      ast: "{\"type\":\"CallExpression\",\"callee\":{\"type\":\"Identifier\",\"name\":\"assert\",\"range\":[0,6]},\"arguments\":[{\"type\":\"BinaryExpression\",\"operator\":\"===\",\"left\":{\"type\":\"MemberExpression\",\"object\":{\"type\":\"Identifier\",\"name\":\"spy\",\"range\":[7,10]},\"property\":{\"type\":\"Identifier\",\"name\":\"calledOnce\",\"range\":[11,21]},\"computed\":false,\"range\":[7,21]},\"right\":{\"type\":\"BooleanLiteral\",\"value\":true,\"range\":[26,30]},\"range\":[7,30]}],\"range\":[0,31]}",
+      tokens: "[{\"type\":{\"label\":\"name\"},\"value\":\"assert\",\"range\":[0,6]},{\"type\":{\"label\":\"(\"},\"range\":[6,7]},{\"type\":{\"label\":\"name\"},\"value\":\"spy\",\"range\":[7,10]},{\"type\":{\"label\":\".\"},\"range\":[10,11]},{\"type\":{\"label\":\"name\"},\"value\":\"calledOnce\",\"range\":[11,21]},{\"type\":{\"label\":\"==/!=\"},\"value\":\"===\",\"range\":[22,25]},{\"type\":{\"label\":\"true\"},\"value\":\"true\",\"range\":[26,30]},{\"type\":{\"label\":\")\"},\"range\":[30,31]}]",
+      visitorKeys: _powerAssertVisitorKeys
+    }));
+    (0, _powerAssert.default)(_rec5._expr(_rec5._capt(_rec5._capt(_rec5._capt(spy, "arguments/0/left/callee/object").calledWith(_rec5._capt(item, "arguments/0/left/arguments/0"), false), "arguments/0/left") === true, "arguments/0"), {
+      content: "assert(spy.calledWith(item, false) === true)",
+      filepath: "test/fixtures/React/fixture.js",
+      line: 45,
+      ast: "{\"type\":\"CallExpression\",\"callee\":{\"type\":\"Identifier\",\"name\":\"assert\",\"range\":[0,6]},\"arguments\":[{\"type\":\"BinaryExpression\",\"operator\":\"===\",\"left\":{\"type\":\"CallExpression\",\"callee\":{\"type\":\"MemberExpression\",\"object\":{\"type\":\"Identifier\",\"name\":\"spy\",\"range\":[7,10]},\"property\":{\"type\":\"Identifier\",\"name\":\"calledWith\",\"range\":[11,21]},\"computed\":false,\"range\":[7,21]},\"arguments\":[{\"type\":\"Identifier\",\"name\":\"item\",\"range\":[22,26]},{\"type\":\"BooleanLiteral\",\"value\":false,\"range\":[28,33]}],\"range\":[7,34]},\"right\":{\"type\":\"BooleanLiteral\",\"value\":true,\"range\":[39,43]},\"range\":[7,43]}],\"range\":[0,44]}",
+      tokens: "[{\"type\":{\"label\":\"name\"},\"value\":\"assert\",\"range\":[0,6]},{\"type\":{\"label\":\"(\"},\"range\":[6,7]},{\"type\":{\"label\":\"name\"},\"value\":\"spy\",\"range\":[7,10]},{\"type\":{\"label\":\".\"},\"range\":[10,11]},{\"type\":{\"label\":\"name\"},\"value\":\"calledWith\",\"range\":[11,21]},{\"type\":{\"label\":\"(\"},\"range\":[21,22]},{\"type\":{\"label\":\"name\"},\"value\":\"item\",\"range\":[22,26]},{\"type\":{\"label\":\",\"},\"range\":[26,27]},{\"type\":{\"label\":\"false\"},\"value\":\"false\",\"range\":[28,33]},{\"type\":{\"label\":\")\"},\"range\":[33,34]},{\"type\":{\"label\":\"==/!=\"},\"value\":\"===\",\"range\":[35,38]},{\"type\":{\"label\":\"true\"},\"value\":\"true\",\"range\":[39,43]},{\"type\":{\"label\":\")\"},\"range\":[43,44]}]",
+      visitorKeys: _powerAssertVisitorKeys
+    }));
+  });
 });
-
 describe('<Foo />', function () {
-    describe('#shallow', function () {
-        it('#contains', function () {
-            var _rec6 = new _powerAssertRecorder();
-
-            (0, _powerAssert2.default)(_rec6._expr(_rec6._capt(_rec6._capt((0, _enzyme.shallow)(_react2.default.createElement(_Foo2.default, null)), 'arguments/0/callee/object').contains(_react2.default.createElement('div', { className: 'foo' })), 'arguments/0'), {
-                content: 'assert(shallow(<Foo />).contains(<div className="foo" />))',
-                filepath: 'test/fixtures/React/fixture.js',
-                line: 52,
-                ast: '{"type":"CallExpression","callee":{"type":"Identifier","name":"assert","range":[0,6]},"arguments":[{"type":"CallExpression","callee":{"type":"MemberExpression","object":{"type":"CallExpression","callee":{"type":"Identifier","name":"shallow","range":[7,14]},"arguments":[{"type":"JSXElement","openingElement":{"type":"JSXOpeningElement","name":{"type":"JSXIdentifier","name":"Foo","range":[16,19]},"attributes":[],"selfClosing":true,"range":[15,22]},"closingElement":null,"children":[],"range":[15,22]}],"range":[7,23]},"property":{"type":"Identifier","name":"contains","range":[24,32]},"computed":false,"range":[7,32]},"arguments":[{"type":"JSXElement","openingElement":{"type":"JSXOpeningElement","name":{"type":"JSXIdentifier","name":"div","range":[34,37]},"attributes":[{"type":"JSXAttribute","name":{"type":"JSXIdentifier","name":"className","range":[38,47]},"value":{"type":"StringLiteral","value":"foo","range":[48,53]},"range":[38,53]}],"selfClosing":true,"range":[33,56]},"closingElement":null,"children":[],"range":[33,56]}],"range":[7,57]}],"range":[0,58]}',
-                tokens: '[{"type":{"label":"name"},"value":"assert","range":[0,6]},{"type":{"label":"("},"range":[6,7]},{"type":{"label":"name"},"value":"shallow","range":[7,14]},{"type":{"label":"("},"range":[14,15]},{"type":{"label":"jsxTagStart"},"range":[15,16]},{"type":{"label":"jsxName"},"value":"Foo","range":[16,19]},{"type":{"label":"/"},"value":"/","range":[20,21]},{"type":{"label":"jsxTagEnd"},"range":[21,22]},{"type":{"label":")"},"range":[22,23]},{"type":{"label":"."},"range":[23,24]},{"type":{"label":"name"},"value":"contains","range":[24,32]},{"type":{"label":"("},"range":[32,33]},{"type":{"label":"jsxTagStart"},"range":[33,34]},{"type":{"label":"jsxName"},"value":"div","range":[34,37]},{"type":{"label":"jsxName"},"value":"className","range":[38,47]},{"type":{"label":"="},"value":"=","range":[47,48]},{"type":{"label":"string"},"value":"foo","range":[48,53]},{"type":{"label":"/"},"value":"/","range":[54,55]},{"type":{"label":"jsxTagEnd"},"range":[55,56]},{"type":{"label":")"},"range":[56,57]},{"type":{"label":")"},"range":[57,58]}]',
-                visitorKeys: _powerAssertVisitorKeys
-            }));
-        });
-        it('#is', function () {
-            var _rec7 = new _powerAssertRecorder();
-
-            (0, _powerAssert2.default)(_rec7._expr(_rec7._capt(_rec7._capt((0, _enzyme.shallow)(_react2.default.createElement(_Foo2.default, null)), 'arguments/0/callee/object').is('.foo'), 'arguments/0'), {
-                content: 'assert(shallow(<Foo />).is(\'.foo\'))',
-                filepath: 'test/fixtures/React/fixture.js',
-                line: 55,
-                ast: '{"type":"CallExpression","callee":{"type":"Identifier","name":"assert","range":[0,6]},"arguments":[{"type":"CallExpression","callee":{"type":"MemberExpression","object":{"type":"CallExpression","callee":{"type":"Identifier","name":"shallow","range":[7,14]},"arguments":[{"type":"JSXElement","openingElement":{"type":"JSXOpeningElement","name":{"type":"JSXIdentifier","name":"Foo","range":[16,19]},"attributes":[],"selfClosing":true,"range":[15,22]},"closingElement":null,"children":[],"range":[15,22]}],"range":[7,23]},"property":{"type":"Identifier","name":"is","range":[24,26]},"computed":false,"range":[7,26]},"arguments":[{"type":"StringLiteral","value":".foo","range":[27,33]}],"range":[7,34]}],"range":[0,35]}',
-                tokens: '[{"type":{"label":"name"},"value":"assert","range":[0,6]},{"type":{"label":"("},"range":[6,7]},{"type":{"label":"name"},"value":"shallow","range":[7,14]},{"type":{"label":"("},"range":[14,15]},{"type":{"label":"jsxTagStart"},"range":[15,16]},{"type":{"label":"jsxName"},"value":"Foo","range":[16,19]},{"type":{"label":"/"},"value":"/","range":[20,21]},{"type":{"label":"jsxTagEnd"},"range":[21,22]},{"type":{"label":")"},"range":[22,23]},{"type":{"label":"."},"range":[23,24]},{"type":{"label":"name"},"value":"is","range":[24,26]},{"type":{"label":"("},"range":[26,27]},{"type":{"label":"string"},"value":".foo","range":[27,33]},{"type":{"label":")"},"range":[33,34]},{"type":{"label":")"},"range":[34,35]}]',
-                visitorKeys: _powerAssertVisitorKeys
-            }));
-        });
+  describe('#shallow', function () {
+    it('#contains', function () {
+      var _rec6 = new _powerAssertRecorder();
+
+      (0, _powerAssert.default)(_rec6._expr(_rec6._capt(_rec6._capt((0, _enzyme.shallow)(_react.default.createElement(_Foo.default, null)), "arguments/0/callee/object").contains(_react.default.createElement("div", {
+        className: "foo"
+      })), "arguments/0"), {
+        content: "assert(shallow(<Foo />).contains(<div className='foo' />))",
+        filepath: "test/fixtures/React/fixture.js",
+        line: 52,
+        ast: "{\"type\":\"CallExpression\",\"callee\":{\"type\":\"Identifier\",\"name\":\"assert\",\"range\":[0,6]},\"arguments\":[{\"type\":\"CallExpression\",\"callee\":{\"type\":\"MemberExpression\",\"object\":{\"type\":\"CallExpression\",\"callee\":{\"type\":\"Identifier\",\"name\":\"shallow\",\"range\":[7,14]},\"arguments\":[{\"type\":\"JSXElement\",\"openingElement\":{\"type\":\"JSXOpeningElement\",\"name\":{\"type\":\"JSXIdentifier\",\"name\":\"Foo\",\"range\":[16,19]},\"attributes\":[],\"selfClosing\":true,\"range\":[15,22]},\"closingElement\":null,\"children\":[],\"range\":[15,22]}],\"range\":[7,23]},\"property\":{\"type\":\"Identifier\",\"name\":\"contains\",\"range\":[24,32]},\"computed\":false,\"range\":[7,32]},\"arguments\":[{\"type\":\"JSXElement\",\"openingElement\":{\"type\":\"JSXOpeningElement\",\"name\":{\"type\":\"JSXIdentifier\",\"name\":\"div\",\"range\":[34,37]},\"attributes\":[{\"type\":\"JSXAttribute\",\"name\":{\"type\":\"JSXIdentifier\",\"name\":\"className\",\"range\":[38,47]},\"value\":{\"type\":\"StringLiteral\",\"value\":\"foo\",\"range\":[48,53]},\"range\":[38,53]}],\"selfClosing\":true,\"range\":[33,56]},\"closingElement\":null,\"children\":[],\"range\":[33,56]}],\"range\":[7,57]}],\"range\":[0,58]}",
+        tokens: "[{\"type\":{\"label\":\"name\"},\"value\":\"assert\",\"range\":[0,6]},{\"type\":{\"label\":\"(\"},\"range\":[6,7]},{\"type\":{\"label\":\"name\"},\"value\":\"shallow\",\"range\":[7,14]},{\"type\":{\"label\":\"(\"},\"range\":[14,15]},{\"type\":{\"label\":\"jsxTagStart\"},\"range\":[15,16]},{\"type\":{\"label\":\"jsxName\"},\"value\":\"Foo\",\"range\":[16,19]},{\"type\":{\"label\":\"/\"},\"value\":\"/\",\"range\":[20,21]},{\"type\":{\"label\":\"jsxTagEnd\"},\"range\":[21,22]},{\"type\":{\"label\":\")\"},\"range\":[22,23]},{\"type\":{\"label\":\".\"},\"range\":[23,24]},{\"type\":{\"label\":\"name\"},\"value\":\"contains\",\"range\":[24,32]},{\"type\":{\"label\":\"(\"},\"range\":[32,33]},{\"type\":{\"label\":\"jsxTagStart\"},\"range\":[33,34]},{\"type\":{\"label\":\"jsxName\"},\"value\":\"div\",\"range\":[34,37]},{\"type\":{\"label\":\"jsxName\"},\"value\":\"className\",\"range\":[38,47]},{\"type\":{\"label\":\"=\"},\"value\":\"=\",\"range\":[47,48]},{\"type\":{\"label\":\"string\"},\"value\":\"foo\",\"range\":[48,53]},{\"type\":{\"label\":\"/\"},\"value\":\"/\",\"range\":[54,55]},{\"type\":{\"label\":\"jsxTagEnd\"},\"range\":[55,56]},{\"type\":{\"label\":\")\"},\"range\":[56,57]},{\"type\":{\"label\":\")\"},\"range\":[57,58]}]",
+        visitorKeys: _powerAssertVisitorKeys
+      }));
+    });
+    it('#is', function () {
+      var _rec7 = new _powerAssertRecorder();
+
+      (0, _powerAssert.default)(_rec7._expr(_rec7._capt(_rec7._capt((0, _enzyme.shallow)(_react.default.createElement(_Foo.default, null)), "arguments/0/callee/object").is('.foo'), "arguments/0"), {
+        content: "assert(shallow(<Foo />).is('.foo'))",
+        filepath: "test/fixtures/React/fixture.js",
+        line: 55,
+        ast: "{\"type\":\"CallExpression\",\"callee\":{\"type\":\"Identifier\",\"name\":\"assert\",\"range\":[0,6]},\"arguments\":[{\"type\":\"CallExpression\",\"callee\":{\"type\":\"MemberExpression\",\"object\":{\"type\":\"CallExpression\",\"callee\":{\"type\":\"Identifier\",\"name\":\"shallow\",\"range\":[7,14]},\"arguments\":[{\"type\":\"JSXElement\",\"openingElement\":{\"type\":\"JSXOpeningElement\",\"name\":{\"type\":\"JSXIdentifier\",\"name\":\"Foo\",\"range\":[16,19]},\"attributes\":[],\"selfClosing\":true,\"range\":[15,22]},\"closingElement\":null,\"children\":[],\"range\":[15,22]}],\"range\":[7,23]},\"property\":{\"type\":\"Identifier\",\"name\":\"is\",\"range\":[24,26]},\"computed\":false,\"range\":[7,26]},\"arguments\":[{\"type\":\"StringLiteral\",\"value\":\".foo\",\"range\":[27,33]}],\"range\":[7,34]}],\"range\":[0,35]}",
+        tokens: "[{\"type\":{\"label\":\"name\"},\"value\":\"assert\",\"range\":[0,6]},{\"type\":{\"label\":\"(\"},\"range\":[6,7]},{\"type\":{\"label\":\"name\"},\"value\":\"shallow\",\"range\":[7,14]},{\"type\":{\"label\":\"(\"},\"range\":[14,15]},{\"type\":{\"label\":\"jsxTagStart\"},\"range\":[15,16]},{\"type\":{\"label\":\"jsxName\"},\"value\":\"Foo\",\"range\":[16,19]},{\"type\":{\"label\":\"/\"},\"value\":\"/\",\"range\":[20,21]},{\"type\":{\"label\":\"jsxTagEnd\"},\"range\":[21,22]},{\"type\":{\"label\":\")\"},\"range\":[22,23]},{\"type\":{\"label\":\".\"},\"range\":[23,24]},{\"type\":{\"label\":\"name\"},\"value\":\"is\",\"range\":[24,26]},{\"type\":{\"label\":\"(\"},\"range\":[26,27]},{\"type\":{\"label\":\"string\"},\"value\":\".foo\",\"range\":[27,33]},{\"type\":{\"label\":\")\"},\"range\":[33,34]},{\"type\":{\"label\":\")\"},\"range\":[34,35]}]",
+        visitorKeys: _powerAssertVisitorKeys
+      }));
     });
-    describe('#mount', function () {
-        it('#find', function () {
-            var _rec8 = new _powerAssertRecorder();
-
-            (0, _powerAssert2.default)(_rec8._expr(_rec8._capt(_rec8._capt(_rec8._capt(_rec8._capt((0, _enzyme.mount)(_react2.default.createElement(_Foo2.default, null)), 'arguments/0/left/object/callee/object').find('.foo'), 'arguments/0/left/object').length, 'arguments/0/left') === 1, 'arguments/0'), {
-                content: 'assert(mount(<Foo />).find(\'.foo\').length === 1)',
-                filepath: 'test/fixtures/React/fixture.js',
-                line: 60,
-                ast: '{"type":"CallExpression","callee":{"type":"Identifier","name":"assert","range":[0,6]},"arguments":[{"type":"BinaryExpression","operator":"===","left":{"type":"MemberExpression","object":{"type":"CallExpression","callee":{"type":"MemberExpression","object":{"type":"CallExpression","callee":{"type":"Identifier","name":"mount","range":[7,12]},"arguments":[{"type":"JSXElement","openingElement":{"type":"JSXOpeningElement","name":{"type":"JSXIdentifier","name":"Foo","range":[14,17]},"attributes":[],"selfClosing":true,"range":[13,20]},"closingElement":null,"children":[],"range":[13,20]}],"range":[7,21]},"property":{"type":"Identifier","name":"find","range":[22,26]},"computed":false,"range":[7,26]},"arguments":[{"type":"StringLiteral","value":".foo","range":[27,33]}],"range":[7,34]},"property":{"type":"Identifier","name":"length","range":[35,41]},"computed":false,"range":[7,41]},"right":{"type":"NumericLiteral","value":1,"range":[46,47]},"range":[7,47]}],"range":[0,48]}',
-                tokens: '[{"type":{"label":"name"},"value":"assert","range":[0,6]},{"type":{"label":"("},"range":[6,7]},{"type":{"label":"name"},"value":"mount","range":[7,12]},{"type":{"label":"("},"range":[12,13]},{"type":{"label":"jsxTagStart"},"range":[13,14]},{"type":{"label":"jsxName"},"value":"Foo","range":[14,17]},{"type":{"label":"/"},"value":"/","range":[18,19]},{"type":{"label":"jsxTagEnd"},"range":[19,20]},{"type":{"label":")"},"range":[20,21]},{"type":{"label":"."},"range":[21,22]},{"type":{"label":"name"},"value":"find","range":[22,26]},{"type":{"label":"("},"range":[26,27]},{"type":{"label":"string"},"value":".foo","range":[27,33]},{"type":{"label":")"},"range":[33,34]},{"type":{"label":"."},"range":[34,35]},{"type":{"label":"name"},"value":"length","range":[35,41]},{"type":{"label":"==/!="},"value":"===","range":[42,45]},{"type":{"label":"num"},"value":1,"range":[46,47]},{"type":{"label":")"},"range":[47,48]}]',
-                visitorKeys: _powerAssertVisitorKeys
-            }));
-        });
+  });
+  describe('#mount', function () {
+    it('#find', function () {
+      var _rec8 = new _powerAssertRecorder();
+
+      (0, _powerAssert.default)(_rec8._expr(_rec8._capt(_rec8._capt(_rec8._capt(_rec8._capt((0, _enzyme.mount)(_react.default.createElement(_Foo.default, null)), "arguments/0/left/object/callee/object").find('.foo'), "arguments/0/left/object").length, "arguments/0/left") === 1, "arguments/0"), {
+        content: "assert(mount(<Foo />).find('.foo').length === 1)",
+        filepath: "test/fixtures/React/fixture.js",
+        line: 60,
+        ast: "{\"type\":\"CallExpression\",\"callee\":{\"type\":\"Identifier\",\"name\":\"assert\",\"range\":[0,6]},\"arguments\":[{\"type\":\"BinaryExpression\",\"operator\":\"===\",\"left\":{\"type\":\"MemberExpression\",\"object\":{\"type\":\"CallExpression\",\"callee\":{\"type\":\"MemberExpression\",\"object\":{\"type\":\"CallExpression\",\"callee\":{\"type\":\"Identifier\",\"name\":\"mount\",\"range\":[7,12]},\"arguments\":[{\"type\":\"JSXElement\",\"openingElement\":{\"type\":\"JSXOpeningElement\",\"name\":{\"type\":\"JSXIdentifier\",\"name\":\"Foo\",\"range\":[14,17]},\"attributes\":[],\"selfClosing\":true,\"range\":[13,20]},\"closingElement\":null,\"children\":[],\"range\":[13,20]}],\"range\":[7,21]},\"property\":{\"type\":\"Identifier\",\"name\":\"find\",\"range\":[22,26]},\"computed\":false,\"range\":[7,26]},\"arguments\":[{\"type\":\"StringLiteral\",\"value\":\".foo\",\"range\":[27,33]}],\"range\":[7,34]},\"property\":{\"type\":\"Identifier\",\"name\":\"length\",\"range\":[35,41]},\"computed\":false,\"range\":[7,41]},\"right\":{\"type\":\"NumericLiteral\",\"value\":1,\"range\":[46,47]},\"range\":[7,47]}],\"range\":[0,48]}",
+        tokens: "[{\"type\":{\"label\":\"name\"},\"value\":\"assert\",\"range\":[0,6]},{\"type\":{\"label\":\"(\"},\"range\":[6,7]},{\"type\":{\"label\":\"name\"},\"value\":\"mount\",\"range\":[7,12]},{\"type\":{\"label\":\"(\"},\"range\":[12,13]},{\"type\":{\"label\":\"jsxTagStart\"},\"range\":[13,14]},{\"type\":{\"label\":\"jsxName\"},\"value\":\"Foo\",\"range\":[14,17]},{\"type\":{\"label\":\"/\"},\"value\":\"/\",\"range\":[18,19]},{\"type\":{\"label\":\"jsxTagEnd\"},\"range\":[19,20]},{\"type\":{\"label\":\")\"},\"range\":[20,21]},{\"type\":{\"label\":\".\"},\"range\":[21,22]},{\"type\":{\"label\":\"name\"},\"value\":\"find\",\"range\":[22,26]},{\"type\":{\"label\":\"(\"},\"range\":[26,27]},{\"type\":{\"label\":\"string\"},\"value\":\".foo\",\"range\":[27,33]},{\"type\":{\"label\":\")\"},\"range\":[33,34]},{\"type\":{\"label\":\".\"},\"range\":[34,35]},{\"type\":{\"label\":\"name\"},\"value\":\"length\",\"range\":[35,41]},{\"type\":{\"label\":\"==/!=\"},\"value\":\"===\",\"range\":[42,45]},{\"type\":{\"label\":\"num\"},\"value\":1,\"range\":[46,47]},{\"type\":{\"label\":\")\"},\"range\":[47,48]}]",
+        visitorKeys: _powerAssertVisitorKeys
+      }));
     });
+  });
 });
diff --git a/test/fixtures/SequenceExpression/expected-presets-es2015.js b/test/fixtures/SequenceExpression/expected-presets-es2015.js
index 62ed255..4b55a90 100644
--- a/test/fixtures/SequenceExpression/expected-presets-es2015.js
+++ b/test/fixtures/SequenceExpression/expected-presets-es2015.js
@@ -1,6 +1,6 @@
 'use strict';
 
-var _powerAssertVisitorKeys = '{"ArrayExpression":["elements"],"AssignmentExpression":["left","right"],"BinaryExpression":["left","right"],"Directive":["value"],"DirectiveLiteral":[],"BlockStatement":["directives","body"],"BreakStatement":["label"],"CallExpression":["callee","arguments"],"CatchClause":["param","body"],"ConditionalExpression":["test","consequent","alternate"],"ContinueStatement":["label"],"DebuggerStatement":[],"DoWhileStatement":["test","body"],"EmptyStatement":[],"ExpressionStatement":["expression"],"File":["program"],"ForInStatement":["left","right","body"],"ForStatement":["init","test","update","body"],"FunctionDeclaration":["id","params","body","returnType","typeParameters"],"FunctionExpression":["id","params","body","returnType","typeParameters"],"Identifier":["typeAnnotation"],"IfStatement":["test","consequent","alternate"],"LabeledStatement":["label","body"],"StringLiteral":[],"NumericLiteral":[],"NullLiteral":[],"BooleanLiteral":[],"RegExpLiteral":[],"LogicalExpression":["left","right"],"MemberExpression":["object","property"],"NewExpression":["callee","arguments"],"Program":["directives","body"],"ObjectExpression":["properties"],"ObjectMethod":["key","params","body","decorators","returnType","typeParameters"],"ObjectProperty":["key","value","decorators"],"RestElement":["argument","typeAnnotation"],"ReturnStatement":["argument"],"SequenceExpression":["expressions"],"SwitchCase":["test","consequent"],"SwitchStatement":["discriminant","cases"],"ThisExpression":[],"ThrowStatement":["argument"],"TryStatement":["block","handler","finalizer"],"UnaryExpression":["argument"],"UpdateExpression":["argument"],"VariableDeclaration":["declarations"],"VariableDeclarator":["id","init"],"WhileStatement":["test","body"],"WithStatement":["object","body"],"AssignmentPattern":["left","right"],"ArrayPattern":["elements","typeAnnotation"],"ArrowFunctionExpression":["params","body","returnType","typeParameters"],"ClassBody":["body"],"ClassDeclaration":["id","body","superClass","mixins","typeParameters","superTypeParameters","implements","decorators"],"ClassExpression":["id","body","superClass","mixins","typeParameters","superTypeParameters","implements","decorators"],"ExportAllDeclaration":["source"],"ExportDefaultDeclaration":["declaration"],"ExportNamedDeclaration":["declaration","specifiers","source"],"ExportSpecifier":["local","exported"],"ForOfStatement":["left","right","body"],"ImportDeclaration":["specifiers","source"],"ImportDefaultSpecifier":["local"],"ImportNamespaceSpecifier":["local"],"ImportSpecifier":["local","imported"],"MetaProperty":["meta","property"],"ClassMethod":["key","params","body","decorators","returnType","typeParameters"],"ObjectPattern":["properties","typeAnnotation"],"SpreadElement":["argument"],"Super":[],"TaggedTemplateExpression":["tag","quasi"],"TemplateElement":[],"TemplateLiteral":["quasis","expressions"],"YieldExpression":["argument"],"AnyTypeAnnotation":[],"ArrayTypeAnnotation":["elementType"],"BooleanTypeAnnotation":[],"BooleanLiteralTypeAnnotation":[],"NullLiteralTypeAnnotation":[],"ClassImplements":["id","typeParameters"],"ClassProperty":["key","value","typeAnnotation","decorators"],"DeclareClass":["id","typeParameters","extends","body"],"DeclareFunction":["id"],"DeclareInterface":["id","typeParameters","extends","body"],"DeclareModule":["id","body"],"DeclareModuleExports":["typeAnnotation"],"DeclareTypeAlias":["id","typeParameters","right"],"DeclareOpaqueType":["id","typeParameters","supertype"],"DeclareVariable":["id"],"DeclareExportDeclaration":["declaration","specifiers","source"],"ExistentialTypeParam":[],"FunctionTypeAnnotation":["typeParameters","params","rest","returnType"],"FunctionTypeParam":["name","typeAnnotation"],"GenericTypeAnnotation":["id","typeParameters"],"InterfaceExtends":["id","typeParameters"],"InterfaceDeclaration":["id","typeParameters","extends","body"],"IntersectionTypeAnnotation":["types"],"MixedTypeAnnotation":[],"EmptyTypeAnnotation":[],"NullableTypeAnnotation":["typeAnnotation"],"NumericLiteralTypeAnnotation":[],"NumberTypeAnnotation":[],"StringLiteralTypeAnnotation":[],"StringTypeAnnotation":[],"ThisTypeAnnotation":[],"TupleTypeAnnotation":["types"],"TypeofTypeAnnotation":["argument"],"TypeAlias":["id","typeParameters","right"],"OpaqueType":["id","typeParameters","impltype","supertype"],"TypeAnnotation":["typeAnnotation"],"TypeCastExpression":["expression","typeAnnotation"],"TypeParameter":["bound"],"TypeParameterDeclaration":["params"],"TypeParameterInstantiation":["params"],"ObjectTypeAnnotation":["properties","indexers","callProperties"],"ObjectTypeCallProperty":["value"],"ObjectTypeIndexer":["id","key","value"],"ObjectTypeProperty":["key","value"],"ObjectTypeSpreadProperty":["argument"],"QualifiedTypeIdentifier":["id","qualification"],"UnionTypeAnnotation":["types"],"VoidTypeAnnotation":[],"JSXAttribute":["name","value"],"JSXClosingElement":["name"],"JSXElement":["openingElement","children","closingElement"],"JSXEmptyExpression":[],"JSXExpressionContainer":["expression"],"JSXSpreadChild":["expression"],"JSXIdentifier":[],"JSXMemberExpression":["object","property"],"JSXNamespacedName":["namespace","name"],"JSXOpeningElement":["name","attributes"],"JSXSpreadAttribute":["argument"],"JSXText":[],"Noop":[],"ParenthesizedExpression":["expression"],"AwaitExpression":["argument"],"ForAwaitStatement":["left","right","body"],"BindExpression":["object","callee"],"Import":[],"Decorator":["expression"],"DoExpression":["body"],"ExportDefaultSpecifier":["exported"],"ExportNamespaceSpecifier":["exported"],"RestProperty":["argument"],"SpreadProperty":["argument"]}',
+var _powerAssertVisitorKeys = "{\"ArrayExpression\":[\"elements\"],\"AssignmentExpression\":[\"left\",\"right\"],\"BinaryExpression\":[\"left\",\"right\"],\"Directive\":[\"value\"],\"DirectiveLiteral\":[],\"BlockStatement\":[\"directives\",\"body\"],\"BreakStatement\":[\"label\"],\"CallExpression\":[\"callee\",\"arguments\",\"typeParameters\"],\"CatchClause\":[\"param\",\"body\"],\"ConditionalExpression\":[\"test\",\"consequent\",\"alternate\"],\"ContinueStatement\":[\"label\"],\"DebuggerStatement\":[],\"DoWhileStatement\":[\"test\",\"body\"],\"EmptyStatement\":[],\"ExpressionStatement\":[\"expression\"],\"File\":[\"program\"],\"ForInStatement\":[\"left\",\"right\",\"body\"],\"ForStatement\":[\"init\",\"test\",\"update\",\"body\"],\"FunctionDeclaration\":[\"id\",\"params\",\"body\",\"returnType\",\"typeParameters\"],\"FunctionExpression\":[\"id\",\"params\",\"body\",\"returnType\",\"typeParameters\"],\"Identifier\":[\"typeAnnotation\"],\"IfStatement\":[\"test\",\"consequent\",\"alternate\"],\"LabeledStatement\":[\"label\",\"body\"],\"StringLiteral\":[],\"NumericLiteral\":[],\"NullLiteral\":[],\"BooleanLiteral\":[],\"RegExpLiteral\":[],\"LogicalExpression\":[\"left\",\"right\"],\"MemberExpression\":[\"object\",\"property\"],\"NewExpression\":[\"callee\",\"arguments\",\"typeParameters\"],\"Program\":[\"directives\",\"body\"],\"ObjectExpression\":[\"properties\"],\"ObjectMethod\":[\"key\",\"params\",\"body\",\"decorators\",\"returnType\",\"typeParameters\"],\"ObjectProperty\":[\"key\",\"value\",\"decorators\"],\"RestElement\":[\"argument\",\"typeAnnotation\"],\"ReturnStatement\":[\"argument\"],\"SequenceExpression\":[\"expressions\"],\"SwitchCase\":[\"test\",\"consequent\"],\"SwitchStatement\":[\"discriminant\",\"cases\"],\"ThisExpression\":[],\"ThrowStatement\":[\"argument\"],\"TryStatement\":[\"block\",\"handler\",\"finalizer\"],\"UnaryExpression\":[\"argument\"],\"UpdateExpression\":[\"argument\"],\"VariableDeclaration\":[\"declarations\"],\"VariableDeclarator\":[\"id\",\"init\"],\"WhileStatement\":[\"test\",\"body\"],\"WithStatement\":[\"object\",\"body\"],\"AssignmentPattern\":[\"left\",\"right\"],\"ArrayPattern\":[\"elements\",\"typeAnnotation\"],\"ArrowFunctionExpression\":[\"params\",\"body\",\"returnType\",\"typeParameters\"],\"ClassBody\":[\"body\"],\"ClassDeclaration\":[\"id\",\"body\",\"superClass\",\"mixins\",\"typeParameters\",\"superTypeParameters\",\"implements\",\"decorators\"],\"ClassExpression\":[\"id\",\"body\",\"superClass\",\"mixins\",\"typeParameters\",\"superTypeParameters\",\"implements\",\"decorators\"],\"ExportAllDeclaration\":[\"source\"],\"ExportDefaultDeclaration\":[\"declaration\"],\"ExportNamedDeclaration\":[\"declaration\",\"specifiers\",\"source\"],\"ExportSpecifier\":[\"local\",\"exported\"],\"ForOfStatement\":[\"left\",\"right\",\"body\"],\"ImportDeclaration\":[\"specifiers\",\"source\"],\"ImportDefaultSpecifier\":[\"local\"],\"ImportNamespaceSpecifier\":[\"local\"],\"ImportSpecifier\":[\"local\",\"imported\"],\"MetaProperty\":[\"meta\",\"property\"],\"ClassMethod\":[\"key\",\"params\",\"body\",\"decorators\",\"returnType\",\"typeParameters\"],\"ObjectPattern\":[\"properties\",\"typeAnnotation\"],\"SpreadElement\":[\"argument\"],\"Super\":[],\"TaggedTemplateExpression\":[\"tag\",\"quasi\"],\"TemplateElement\":[],\"TemplateLiteral\":[\"quasis\",\"expressions\"],\"YieldExpression\":[\"argument\"],\"AnyTypeAnnotation\":[],\"ArrayTypeAnnotation\":[\"elementType\"],\"BooleanTypeAnnotation\":[],\"BooleanLiteralTypeAnnotation\":[],\"NullLiteralTypeAnnotation\":[],\"ClassImplements\":[\"id\",\"typeParameters\"],\"DeclareClass\":[\"id\",\"typeParameters\",\"extends\",\"body\"],\"DeclareFunction\":[\"id\"],\"DeclareInterface\":[\"id\",\"typeParameters\",\"extends\",\"body\"],\"DeclareModule\":[\"id\",\"body\"],\"DeclareModuleExports\":[\"typeAnnotation\"],\"DeclareTypeAlias\":[\"id\",\"typeParameters\",\"right\"],\"DeclareOpaqueType\":[\"id\",\"typeParameters\",\"supertype\"],\"DeclareVariable\":[\"id\"],\"DeclareExportDeclaration\":[\"declaration\",\"specifiers\",\"source\"],\"DeclareExportAllDeclaration\":[\"source\"],\"DeclaredPredicate\":[\"value\"],\"ExistsTypeAnnotation\":[],\"FunctionTypeAnnotation\":[\"typeParameters\",\"params\",\"rest\",\"returnType\"],\"FunctionTypeParam\":[\"name\",\"typeAnnotation\"],\"GenericTypeAnnotation\":[\"id\",\"typeParameters\"],\"InferredPredicate\":[],\"InterfaceExtends\":[\"id\",\"typeParameters\"],\"InterfaceDeclaration\":[\"id\",\"typeParameters\",\"extends\",\"body\"],\"IntersectionTypeAnnotation\":[\"types\"],\"MixedTypeAnnotation\":[],\"EmptyTypeAnnotation\":[],\"NullableTypeAnnotation\":[\"typeAnnotation\"],\"NumberLiteralTypeAnnotation\":[],\"NumberTypeAnnotation\":[],\"ObjectTypeAnnotation\":[\"properties\",\"indexers\",\"callProperties\"],\"ObjectTypeCallProperty\":[\"value\"],\"ObjectTypeIndexer\":[\"id\",\"key\",\"value\"],\"ObjectTypeProperty\":[\"key\",\"value\"],\"ObjectTypeSpreadProperty\":[\"argument\"],\"OpaqueType\":[\"id\",\"typeParameters\",\"supertype\",\"impltype\"],\"QualifiedTypeIdentifier\":[\"id\",\"qualification\"],\"StringLiteralTypeAnnotation\":[],\"StringTypeAnnotation\":[],\"ThisTypeAnnotation\":[],\"TupleTypeAnnotation\":[\"types\"],\"TypeofTypeAnnotation\":[\"argument\"],\"TypeAlias\":[\"id\",\"typeParameters\",\"right\"],\"TypeAnnotation\":[\"typeAnnotation\"],\"TypeCastExpression\":[\"expression\",\"typeAnnotation\"],\"TypeParameter\":[\"bound\",\"default\"],\"TypeParameterDeclaration\":[\"params\"],\"TypeParameterInstantiation\":[\"params\"],\"UnionTypeAnnotation\":[\"types\"],\"VoidTypeAnnotation\":[],\"JSXAttribute\":[\"name\",\"value\"],\"JSXClosingElement\":[\"name\"],\"JSXElement\":[\"openingElement\",\"children\",\"closingElement\"],\"JSXEmptyExpression\":[],\"JSXExpressionContainer\":[\"expression\"],\"JSXSpreadChild\":[\"expression\"],\"JSXIdentifier\":[],\"JSXMemberExpression\":[\"object\",\"property\"],\"JSXNamespacedName\":[\"namespace\",\"name\"],\"JSXOpeningElement\":[\"name\",\"attributes\"],\"JSXSpreadAttribute\":[\"argument\"],\"JSXText\":[],\"JSXFragment\":[\"openingFragment\",\"children\",\"closingFragment\"],\"JSXOpeningFragment\":[],\"JSXClosingFragment\":[],\"Noop\":[],\"ParenthesizedExpression\":[\"expression\"],\"AwaitExpression\":[\"argument\"],\"BindExpression\":[\"object\",\"callee\"],\"ClassProperty\":[\"key\",\"value\",\"typeAnnotation\",\"decorators\"],\"Import\":[],\"Decorator\":[\"expression\"],\"DoExpression\":[\"body\"],\"ExportDefaultSpecifier\":[\"exported\"],\"ExportNamespaceSpecifier\":[\"exported\"],\"TSParameterProperty\":[\"parameter\"],\"TSDeclareFunction\":[\"id\",\"typeParameters\",\"params\",\"returnType\"],\"TSDeclareMethod\":[\"decorators\",\"key\",\"typeParameters\",\"params\",\"returnType\"],\"TSQualifiedName\":[\"left\",\"right\"],\"TSCallSignatureDeclaration\":[\"typeParameters\",\"parameters\",\"typeAnnotation\"],\"TSConstructSignatureDeclaration\":[\"typeParameters\",\"parameters\",\"typeAnnotation\"],\"TSPropertySignature\":[\"key\",\"typeAnnotation\",\"initializer\"],\"TSMethodSignature\":[\"key\",\"typeParameters\",\"parameters\",\"typeAnnotation\"],\"TSIndexSignature\":[\"parameters\",\"typeAnnotation\"],\"TSAnyKeyword\":[],\"TSNumberKeyword\":[],\"TSObjectKeyword\":[],\"TSBooleanKeyword\":[],\"TSStringKeyword\":[],\"TSSymbolKeyword\":[],\"TSVoidKeyword\":[],\"TSUndefinedKeyword\":[],\"TSNullKeyword\":[],\"TSNeverKeyword\":[],\"TSThisType\":[],\"TSFunctionType\":[\"typeParameters\",\"typeAnnotation\"],\"TSConstructorType\":[\"typeParameters\",\"typeAnnotation\"],\"TSTypeReference\":[\"typeName\",\"typeParameters\"],\"TSTypePredicate\":[\"parameterName\",\"typeAnnotation\"],\"TSTypeQuery\":[\"exprName\"],\"TSTypeLiteral\":[\"members\"],\"TSArrayType\":[\"elementType\"],\"TSTupleType\":[\"elementTypes\"],\"TSUnionType\":[\"types\"],\"TSIntersectionType\":[\"types\"],\"TSParenthesizedType\":[\"typeAnnotation\"],\"TSTypeOperator\":[\"typeAnnotation\"],\"TSIndexedAccessType\":[\"objectType\",\"indexType\"],\"TSMappedType\":[\"typeParameter\",\"typeAnnotation\"],\"TSLiteralType\":[\"literal\"],\"TSExpressionWithTypeArguments\":[\"expression\",\"typeParameters\"],\"TSInterfaceDeclaration\":[\"id\",\"typeParameters\",\"extends\",\"body\"],\"TSInterfaceBody\":[\"body\"],\"TSTypeAliasDeclaration\":[\"id\",\"typeParameters\",\"typeAnnotation\"],\"TSAsExpression\":[\"expression\",\"typeAnnotation\"],\"TSTypeAssertion\":[\"typeAnnotation\",\"expression\"],\"TSEnumDeclaration\":[\"id\",\"members\"],\"TSEnumMember\":[\"id\",\"initializer\"],\"TSModuleDeclaration\":[\"id\",\"body\"],\"TSModuleBlock\":[\"body\"],\"TSImportEqualsDeclaration\":[\"id\",\"moduleReference\"],\"TSExternalModuleReference\":[\"expression\"],\"TSNonNullExpression\":[\"expression\"],\"TSExportAssignment\":[\"expression\"],\"TSNamespaceExportDeclaration\":[\"id\"],\"TSTypeAnnotation\":[\"typeAnnotation\"],\"TSTypeParameterInstantiation\":[\"params\"],\"TSTypeParameterDeclaration\":[\"params\"],\"TSTypeParameter\":[\"constraint\",\"default\"]}",
     _powerAssertRecorder = function () { function PowerAssertRecorder() { this.captured = []; } PowerAssertRecorder.prototype._capt = function _capt(value, espath) { this.captured.push({ value: value, espath: espath }); return value; }; PowerAssertRecorder.prototype._expr = function _expr(value, source) { var capturedValues = this.captured; this.captured = []; return { powerAssertContext: { value: value, events: capturedValues }, source: source }; }; return PowerAssertRecorder; }(),
     _rec = new _powerAssertRecorder(),
     _rec2 = new _powerAssertRecorder(),
@@ -10,48 +10,43 @@ var _powerAssertVisitorKeys = '{"ArrayExpression":["elements"],"AssignmentExpres
     _rec6 = new _powerAssertRecorder();
 
 assert((2, 1, 0));
-
-assert(_rec2._expr(_rec2._capt((_rec2._capt(foo, 'arguments/0/left/expressions/0'), _rec2._capt(bar, 'arguments/0/left/expressions/1')) === _rec2._capt(baz, 'arguments/0/right'), 'arguments/0'), {
-  content: 'assert((foo, bar) === baz)',
-  filepath: 'test/fixtures/SequenceExpression/fixture.js',
+assert(_rec2._expr(_rec2._capt((_rec2._capt(foo, "arguments/0/left/expressions/0"), _rec2._capt(bar, "arguments/0/left/expressions/1")) === _rec2._capt(baz, "arguments/0/right"), "arguments/0"), {
+  content: "assert((foo, bar) === baz)",
+  filepath: "test/fixtures/SequenceExpression/fixture.js",
   line: 5,
-  ast: '{"type":"CallExpression","callee":{"type":"Identifier","name":"assert","range":[0,6]},"arguments":[{"type":"BinaryExpression","operator":"===","left":{"type":"SequenceExpression","expressions":[{"type":"Identifier","name":"foo","range":[8,11]},{"type":"Identifier","name":"bar","range":[13,16]}],"range":[8,16]},"right":{"type":"Identifier","name":"baz","range":[22,25]},"range":[7,25]}],"range":[0,26]}',
-  tokens: '[{"type":{"label":"name"},"value":"assert","range":[0,6]},{"type":{"label":"("},"range":[6,7]},{"type":{"label":"("},"range":[7,8]},{"type":{"label":"name"},"value":"foo","range":[8,11]},{"type":{"label":","},"range":[11,12]},{"type":{"label":"name"},"value":"bar","range":[13,16]},{"type":{"label":")"},"range":[16,17]},{"type":{"label":"==/!="},"value":"===","range":[18,21]},{"type":{"label":"name"},"value":"baz","range":[22,25]},{"type":{"label":")"},"range":[25,26]}]',
+  ast: "{\"type\":\"CallExpression\",\"callee\":{\"type\":\"Identifier\",\"name\":\"assert\",\"range\":[0,6]},\"arguments\":[{\"type\":\"BinaryExpression\",\"operator\":\"===\",\"left\":{\"type\":\"SequenceExpression\",\"expressions\":[{\"type\":\"Identifier\",\"name\":\"foo\",\"range\":[8,11]},{\"type\":\"Identifier\",\"name\":\"bar\",\"range\":[13,16]}],\"range\":[8,16]},\"right\":{\"type\":\"Identifier\",\"name\":\"baz\",\"range\":[22,25]},\"range\":[7,25]}],\"range\":[0,26]}",
+  tokens: "[{\"type\":{\"label\":\"name\"},\"value\":\"assert\",\"range\":[0,6]},{\"type\":{\"label\":\"(\"},\"range\":[6,7]},{\"type\":{\"label\":\"(\"},\"range\":[7,8]},{\"type\":{\"label\":\"name\"},\"value\":\"foo\",\"range\":[8,11]},{\"type\":{\"label\":\",\"},\"range\":[11,12]},{\"type\":{\"label\":\"name\"},\"value\":\"bar\",\"range\":[13,16]},{\"type\":{\"label\":\")\"},\"range\":[16,17]},{\"type\":{\"label\":\"==/!=\"},\"value\":\"===\",\"range\":[18,21]},{\"type\":{\"label\":\"name\"},\"value\":\"baz\",\"range\":[22,25]},{\"type\":{\"label\":\")\"},\"range\":[25,26]}]",
   visitorKeys: _powerAssertVisitorKeys
 }));
-
-assert(_rec3._expr(_rec3._capt(toto((_rec3._capt(tata, 'arguments/0/arguments/0/expressions/0'), _rec3._capt(titi, 'arguments/0/arguments/0/expressions/1'))), 'arguments/0'), {
-  content: 'assert(toto((tata, titi)))',
-  filepath: 'test/fixtures/SequenceExpression/fixture.js',
+assert(_rec3._expr(_rec3._capt(toto((_rec3._capt(tata, "arguments/0/arguments/0/expressions/0"), _rec3._capt(titi, "arguments/0/arguments/0/expressions/1"))), "arguments/0"), {
+  content: "assert(toto((tata, titi)))",
+  filepath: "test/fixtures/SequenceExpression/fixture.js",
   line: 7,
-  ast: '{"type":"CallExpression","callee":{"type":"Identifier","name":"assert","range":[0,6]},"arguments":[{"type":"CallExpression","callee":{"type":"Identifier","name":"toto","range":[7,11]},"arguments":[{"type":"SequenceExpression","expressions":[{"type":"Identifier","name":"tata","range":[13,17]},{"type":"Identifier","name":"titi","range":[19,23]}],"range":[13,23]}],"range":[7,25]}],"range":[0,26]}',
-  tokens: '[{"type":{"label":"name"},"value":"assert","range":[0,6]},{"type":{"label":"("},"range":[6,7]},{"type":{"label":"name"},"value":"toto","range":[7,11]},{"type":{"label":"("},"range":[11,12]},{"type":{"label":"("},"range":[12,13]},{"type":{"label":"name"},"value":"tata","range":[13,17]},{"type":{"label":","},"range":[17,18]},{"type":{"label":"name"},"value":"titi","range":[19,23]},{"type":{"label":")"},"range":[23,24]},{"type":{"label":")"},"range":[24,25]},{"type":{"label":")"},"range":[25,26]}]',
+  ast: "{\"type\":\"CallExpression\",\"callee\":{\"type\":\"Identifier\",\"name\":\"assert\",\"range\":[0,6]},\"arguments\":[{\"type\":\"CallExpression\",\"callee\":{\"type\":\"Identifier\",\"name\":\"toto\",\"range\":[7,11]},\"arguments\":[{\"type\":\"SequenceExpression\",\"expressions\":[{\"type\":\"Identifier\",\"name\":\"tata\",\"range\":[13,17]},{\"type\":\"Identifier\",\"name\":\"titi\",\"range\":[19,23]}],\"range\":[13,23]}],\"range\":[7,25]}],\"range\":[0,26]}",
+  tokens: "[{\"type\":{\"label\":\"name\"},\"value\":\"assert\",\"range\":[0,6]},{\"type\":{\"label\":\"(\"},\"range\":[6,7]},{\"type\":{\"label\":\"name\"},\"value\":\"toto\",\"range\":[7,11]},{\"type\":{\"label\":\"(\"},\"range\":[11,12]},{\"type\":{\"label\":\"(\"},\"range\":[12,13]},{\"type\":{\"label\":\"name\"},\"value\":\"tata\",\"range\":[13,17]},{\"type\":{\"label\":\",\"},\"range\":[17,18]},{\"type\":{\"label\":\"name\"},\"value\":\"titi\",\"range\":[19,23]},{\"type\":{\"label\":\")\"},\"range\":[23,24]},{\"type\":{\"label\":\")\"},\"range\":[24,25]},{\"type\":{\"label\":\")\"},\"range\":[25,26]}]",
   visitorKeys: _powerAssertVisitorKeys
 }));
-
-assert(_rec4._expr((_rec4._capt(foo, 'arguments/0/expressions/0'), (_rec4._capt(bar, 'arguments/0/expressions/1/expressions/0'), _rec4._capt(baz, 'arguments/0/expressions/1/expressions/1'))), {
-  content: 'assert((foo, (bar, baz)))',
-  filepath: 'test/fixtures/SequenceExpression/fixture.js',
+assert(_rec4._expr((_rec4._capt(foo, "arguments/0/expressions/0"), (_rec4._capt(bar, "arguments/0/expressions/1/expressions/0"), _rec4._capt(baz, "arguments/0/expressions/1/expressions/1"))), {
+  content: "assert((foo, (bar, baz)))",
+  filepath: "test/fixtures/SequenceExpression/fixture.js",
   line: 9,
-  ast: '{"type":"CallExpression","callee":{"type":"Identifier","name":"assert","range":[0,6]},"arguments":[{"type":"SequenceExpression","expressions":[{"type":"Identifier","name":"foo","range":[8,11]},{"type":"SequenceExpression","expressions":[{"type":"Identifier","name":"bar","range":[14,17]},{"type":"Identifier","name":"baz","range":[19,22]}],"range":[14,22]}],"range":[8,23]}],"range":[0,25]}',
-  tokens: '[{"type":{"label":"name"},"value":"assert","range":[0,6]},{"type":{"label":"("},"range":[6,7]},{"type":{"label":"("},"range":[7,8]},{"type":{"label":"name"},"value":"foo","range":[8,11]},{"type":{"label":","},"range":[11,12]},{"type":{"label":"("},"range":[13,14]},{"type":{"label":"name"},"value":"bar","range":[14,17]},{"type":{"label":","},"range":[17,18]},{"type":{"label":"name"},"value":"baz","range":[19,22]},{"type":{"label":")"},"range":[22,23]},{"type":{"label":")"},"range":[23,24]},{"type":{"label":")"},"range":[24,25]}]',
+  ast: "{\"type\":\"CallExpression\",\"callee\":{\"type\":\"Identifier\",\"name\":\"assert\",\"range\":[0,6]},\"arguments\":[{\"type\":\"SequenceExpression\",\"expressions\":[{\"type\":\"Identifier\",\"name\":\"foo\",\"range\":[8,11]},{\"type\":\"SequenceExpression\",\"expressions\":[{\"type\":\"Identifier\",\"name\":\"bar\",\"range\":[14,17]},{\"type\":\"Identifier\",\"name\":\"baz\",\"range\":[19,22]}],\"range\":[14,22]}],\"range\":[8,23]}],\"range\":[0,25]}",
+  tokens: "[{\"type\":{\"label\":\"name\"},\"value\":\"assert\",\"range\":[0,6]},{\"type\":{\"label\":\"(\"},\"range\":[6,7]},{\"type\":{\"label\":\"(\"},\"range\":[7,8]},{\"type\":{\"label\":\"name\"},\"value\":\"foo\",\"range\":[8,11]},{\"type\":{\"label\":\",\"},\"range\":[11,12]},{\"type\":{\"label\":\"(\"},\"range\":[13,14]},{\"type\":{\"label\":\"name\"},\"value\":\"bar\",\"range\":[14,17]},{\"type\":{\"label\":\",\"},\"range\":[17,18]},{\"type\":{\"label\":\"name\"},\"value\":\"baz\",\"range\":[19,22]},{\"type\":{\"label\":\")\"},\"range\":[22,23]},{\"type\":{\"label\":\")\"},\"range\":[23,24]},{\"type\":{\"label\":\")\"},\"range\":[24,25]}]",
   visitorKeys: _powerAssertVisitorKeys
 }));
-
-assert(_rec5._expr((((((_rec5._capt(foo, 'arguments/0/expressions/0/expressions/0/expressions/0/expressions/0/expressions/0'), _rec5._capt(bar, 'arguments/0/expressions/0/expressions/0/expressions/0/expressions/0/expressions/1')), _rec5._capt(baz, 'arguments/0/expressions/0/expressions/0/expressions/0/expressions/1')), _rec5._capt(toto, 'arguments/0/expressions/0/expressions/0/expressions/1')), _rec5._capt(tata, 'arguments/0/expressions/0/expressions/1')), _rec5._capt(titi, 'arguments/0/expressions/1')), {
-  content: 'assert((((((foo, bar), baz), toto), tata), titi))',
-  filepath: 'test/fixtures/SequenceExpression/fixture.js',
+assert(_rec5._expr((((((_rec5._capt(foo, "arguments/0/expressions/0/expressions/0/expressions/0/expressions/0/expressions/0"), _rec5._capt(bar, "arguments/0/expressions/0/expressions/0/expressions/0/expressions/0/expressions/1")), _rec5._capt(baz, "arguments/0/expressions/0/expressions/0/expressions/0/expressions/1")), _rec5._capt(toto, "arguments/0/expressions/0/expressions/0/expressions/1")), _rec5._capt(tata, "arguments/0/expressions/0/expressions/1")), _rec5._capt(titi, "arguments/0/expressions/1")), {
+  content: "assert((((((foo, bar), baz), toto), tata), titi))",
+  filepath: "test/fixtures/SequenceExpression/fixture.js",
   line: 11,
-  ast: '{"type":"CallExpression","callee":{"type":"Identifier","name":"assert","range":[0,6]},"arguments":[{"type":"SequenceExpression","expressions":[{"type":"SequenceExpression","expressions":[{"type":"SequenceExpression","expressions":[{"type":"SequenceExpression","expressions":[{"type":"SequenceExpression","expressions":[{"type":"Identifier","name":"foo","range":[12,15]},{"type":"Identifier","name":"bar","range":[17,20]}],"range":[12,20]},{"type":"Identifier","name":"baz","range":[23,26]}],"range":[11,26]},{"type":"Identifier","name":"toto","range":[29,33]}],"range":[10,33]},{"type":"Identifier","name":"tata","range":[36,40]}],"range":[9,40]},{"type":"Identifier","name":"titi","range":[43,47]}],"range":[8,47]}],"range":[0,49]}',
-  tokens: '[{"type":{"label":"name"},"value":"assert","range":[0,6]},{"type":{"label":"("},"range":[6,7]},{"type":{"label":"("},"range":[7,8]},{"type":{"label":"("},"range":[8,9]},{"type":{"label":"("},"range":[9,10]},{"type":{"label":"("},"range":[10,11]},{"type":{"label":"("},"range":[11,12]},{"type":{"label":"name"},"value":"foo","range":[12,15]},{"type":{"label":","},"range":[15,16]},{"type":{"label":"name"},"value":"bar","range":[17,20]},{"type":{"label":")"},"range":[20,21]},{"type":{"label":","},"range":[21,22]},{"type":{"label":"name"},"value":"baz","range":[23,26]},{"type":{"label":")"},"range":[26,27]},{"type":{"label":","},"range":[27,28]},{"type":{"label":"name"},"value":"toto","range":[29,33]},{"type":{"label":")"},"range":[33,34]},{"type":{"label":","},"range":[34,35]},{"type":{"label":"name"},"value":"tata","range":[36,40]},{"type":{"label":")"},"range":[40,41]},{"type":{"label":","},"range":[41,42]},{"type":{"label":"name"},"value":"titi","range":[43,47]},{"type":{"label":")"},"range":[47,48]},{"type":{"label":")"},"range":[48,49]}]',
+  ast: "{\"type\":\"CallExpression\",\"callee\":{\"type\":\"Identifier\",\"name\":\"assert\",\"range\":[0,6]},\"arguments\":[{\"type\":\"SequenceExpression\",\"expressions\":[{\"type\":\"SequenceExpression\",\"expressions\":[{\"type\":\"SequenceExpression\",\"expressions\":[{\"type\":\"SequenceExpression\",\"expressions\":[{\"type\":\"SequenceExpression\",\"expressions\":[{\"type\":\"Identifier\",\"name\":\"foo\",\"range\":[12,15]},{\"type\":\"Identifier\",\"name\":\"bar\",\"range\":[17,20]}],\"range\":[12,20]},{\"type\":\"Identifier\",\"name\":\"baz\",\"range\":[23,26]}],\"range\":[11,26]},{\"type\":\"Identifier\",\"name\":\"toto\",\"range\":[29,33]}],\"range\":[10,33]},{\"type\":\"Identifier\",\"name\":\"tata\",\"range\":[36,40]}],\"range\":[9,40]},{\"type\":\"Identifier\",\"name\":\"titi\",\"range\":[43,47]}],\"range\":[8,47]}],\"range\":[0,49]}",
+  tokens: "[{\"type\":{\"label\":\"name\"},\"value\":\"assert\",\"range\":[0,6]},{\"type\":{\"label\":\"(\"},\"range\":[6,7]},{\"type\":{\"label\":\"(\"},\"range\":[7,8]},{\"type\":{\"label\":\"(\"},\"range\":[8,9]},{\"type\":{\"label\":\"(\"},\"range\":[9,10]},{\"type\":{\"label\":\"(\"},\"range\":[10,11]},{\"type\":{\"label\":\"(\"},\"range\":[11,12]},{\"type\":{\"label\":\"name\"},\"value\":\"foo\",\"range\":[12,15]},{\"type\":{\"label\":\",\"},\"range\":[15,16]},{\"type\":{\"label\":\"name\"},\"value\":\"bar\",\"range\":[17,20]},{\"type\":{\"label\":\")\"},\"range\":[20,21]},{\"type\":{\"label\":\",\"},\"range\":[21,22]},{\"type\":{\"label\":\"name\"},\"value\":\"baz\",\"range\":[23,26]},{\"type\":{\"label\":\")\"},\"range\":[26,27]},{\"type\":{\"label\":\",\"},\"range\":[27,28]},{\"type\":{\"label\":\"name\"},\"value\":\"toto\",\"range\":[29,33]},{\"type\":{\"label\":\")\"},\"range\":[33,34]},{\"type\":{\"label\":\",\"},\"range\":[34,35]},{\"type\":{\"label\":\"name\"},\"value\":\"tata\",\"range\":[36,40]},{\"type\":{\"label\":\")\"},\"range\":[40,41]},{\"type\":{\"label\":\",\"},\"range\":[41,42]},{\"type\":{\"label\":\"name\"},\"value\":\"titi\",\"range\":[43,47]},{\"type\":{\"label\":\")\"},\"range\":[47,48]},{\"type\":{\"label\":\")\"},\"range\":[48,49]}]",
   visitorKeys: _powerAssertVisitorKeys
 }));
-
-assert(_rec6._expr((_rec6._capt(y = _rec6._capt(x, 'arguments/0/expressions/0/right'), 'arguments/0/expressions/0'), _rec6._capt(z, 'arguments/0/expressions/1')), {
-  content: 'assert((y = x, z))',
-  filepath: 'test/fixtures/SequenceExpression/fixture.js',
+assert(_rec6._expr((_rec6._capt(y = _rec6._capt(x, "arguments/0/expressions/0/right"), "arguments/0/expressions/0"), _rec6._capt(z, "arguments/0/expressions/1")), {
+  content: "assert((y = x, z))",
+  filepath: "test/fixtures/SequenceExpression/fixture.js",
   line: 13,
-  ast: '{"type":"CallExpression","callee":{"type":"Identifier","name":"assert","range":[0,6]},"arguments":[{"type":"SequenceExpression","expressions":[{"type":"AssignmentExpression","operator":"=","left":{"type":"Identifier","name":"y","range":[8,9]},"right":{"type":"Identifier","name":"x","range":[12,13]},"range":[8,13]},{"type":"Identifier","name":"z","range":[15,16]}],"range":[8,16]}],"range":[0,18]}',
-  tokens: '[{"type":{"label":"name"},"value":"assert","range":[0,6]},{"type":{"label":"("},"range":[6,7]},{"type":{"label":"("},"range":[7,8]},{"type":{"label":"name"},"value":"y","range":[8,9]},{"type":{"label":"="},"value":"=","range":[10,11]},{"type":{"label":"name"},"value":"x","range":[12,13]},{"type":{"label":","},"range":[13,14]},{"type":{"label":"name"},"value":"z","range":[15,16]},{"type":{"label":")"},"range":[16,17]},{"type":{"label":")"},"range":[17,18]}]',
+  ast: "{\"type\":\"CallExpression\",\"callee\":{\"type\":\"Identifier\",\"name\":\"assert\",\"range\":[0,6]},\"arguments\":[{\"type\":\"SequenceExpression\",\"expressions\":[{\"type\":\"AssignmentExpression\",\"operator\":\"=\",\"left\":{\"type\":\"Identifier\",\"name\":\"y\",\"range\":[8,9]},\"right\":{\"type\":\"Identifier\",\"name\":\"x\",\"range\":[12,13]},\"range\":[8,13]},{\"type\":\"Identifier\",\"name\":\"z\",\"range\":[15,16]}],\"range\":[8,16]}],\"range\":[0,18]}",
+  tokens: "[{\"type\":{\"label\":\"name\"},\"value\":\"assert\",\"range\":[0,6]},{\"type\":{\"label\":\"(\"},\"range\":[6,7]},{\"type\":{\"label\":\"(\"},\"range\":[7,8]},{\"type\":{\"label\":\"name\"},\"value\":\"y\",\"range\":[8,9]},{\"type\":{\"label\":\"=\"},\"value\":\"=\",\"range\":[10,11]},{\"type\":{\"label\":\"name\"},\"value\":\"x\",\"range\":[12,13]},{\"type\":{\"label\":\",\"},\"range\":[13,14]},{\"type\":{\"label\":\"name\"},\"value\":\"z\",\"range\":[15,16]},{\"type\":{\"label\":\")\"},\"range\":[16,17]},{\"type\":{\"label\":\")\"},\"range\":[17,18]}]",
   visitorKeys: _powerAssertVisitorKeys
 }));
diff --git a/test/fixtures/SequenceExpression/expected.js b/test/fixtures/SequenceExpression/expected.js
index 3e52da7..9b74e7f 100644
--- a/test/fixtures/SequenceExpression/expected.js
+++ b/test/fixtures/SequenceExpression/expected.js
@@ -9,33 +9,28 @@ var _powerAssertRecorder = function () { function PowerAssertRecorder() { this.c
     _rec6 = new _powerAssertRecorder();
 
 assert((2, 1, 0));
-
-assert(_rec2._expr(_rec2._capt((_rec2._capt(foo, 'arguments/0/left/expressions/0'), _rec2._capt(bar, 'arguments/0/left/expressions/1')) === _rec2._capt(baz, 'arguments/0/right'), 'arguments/0'), {
-  content: 'assert((foo, bar) === baz)',
-  filepath: 'test/fixtures/SequenceExpression/fixture.js',
+assert(_rec2._expr(_rec2._capt((_rec2._capt(foo, "arguments/0/left/expressions/0"), _rec2._capt(bar, "arguments/0/left/expressions/1")) === _rec2._capt(baz, "arguments/0/right"), "arguments/0"), {
+  content: "assert((foo, bar) === baz)",
+  filepath: "test/fixtures/SequenceExpression/fixture.js",
   line: 5
 }));
-
-assert(_rec3._expr(_rec3._capt(toto((_rec3._capt(tata, 'arguments/0/arguments/0/expressions/0'), _rec3._capt(titi, 'arguments/0/arguments/0/expressions/1'))), 'arguments/0'), {
-  content: 'assert(toto((tata, titi)))',
-  filepath: 'test/fixtures/SequenceExpression/fixture.js',
+assert(_rec3._expr(_rec3._capt(toto((_rec3._capt(tata, "arguments/0/arguments/0/expressions/0"), _rec3._capt(titi, "arguments/0/arguments/0/expressions/1"))), "arguments/0"), {
+  content: "assert(toto((tata, titi)))",
+  filepath: "test/fixtures/SequenceExpression/fixture.js",
   line: 7
 }));
-
-assert(_rec4._expr((_rec4._capt(foo, 'arguments/0/expressions/0'), (_rec4._capt(bar, 'arguments/0/expressions/1/expressions/0'), _rec4._capt(baz, 'arguments/0/expressions/1/expressions/1'))), {
-  content: 'assert((foo, (bar, baz)))',
-  filepath: 'test/fixtures/SequenceExpression/fixture.js',
+assert(_rec4._expr((_rec4._capt(foo, "arguments/0/expressions/0"), (_rec4._capt(bar, "arguments/0/expressions/1/expressions/0"), _rec4._capt(baz, "arguments/0/expressions/1/expressions/1"))), {
+  content: "assert((foo, (bar, baz)))",
+  filepath: "test/fixtures/SequenceExpression/fixture.js",
   line: 9
 }));
-
-assert(_rec5._expr((((((_rec5._capt(foo, 'arguments/0/expressions/0/expressions/0/expressions/0/expressions/0/expressions/0'), _rec5._capt(bar, 'arguments/0/expressions/0/expressions/0/expressions/0/expressions/0/expressions/1')), _rec5._capt(baz, 'arguments/0/expressions/0/expressions/0/expressions/0/expressions/1')), _rec5._capt(toto, 'arguments/0/expressions/0/expressions/0/expressions/1')), _rec5._capt(tata, 'arguments/0/expressions/0/expressions/1')), _rec5._capt(titi, 'arguments/0/expressions/1')), {
-  content: 'assert((((((foo, bar), baz), toto), tata), titi))',
-  filepath: 'test/fixtures/SequenceExpression/fixture.js',
+assert(_rec5._expr((((((_rec5._capt(foo, "arguments/0/expressions/0/expressions/0/expressions/0/expressions/0/expressions/0"), _rec5._capt(bar, "arguments/0/expressions/0/expressions/0/expressions/0/expressions/0/expressions/1")), _rec5._capt(baz, "arguments/0/expressions/0/expressions/0/expressions/0/expressions/1")), _rec5._capt(toto, "arguments/0/expressions/0/expressions/0/expressions/1")), _rec5._capt(tata, "arguments/0/expressions/0/expressions/1")), _rec5._capt(titi, "arguments/0/expressions/1")), {
+  content: "assert((((((foo, bar), baz), toto), tata), titi))",
+  filepath: "test/fixtures/SequenceExpression/fixture.js",
   line: 11
 }));
-
-assert(_rec6._expr((_rec6._capt(y = _rec6._capt(x, 'arguments/0/expressions/0/right'), 'arguments/0/expressions/0'), _rec6._capt(z, 'arguments/0/expressions/1')), {
-  content: 'assert((y = x, z))',
-  filepath: 'test/fixtures/SequenceExpression/fixture.js',
+assert(_rec6._expr((_rec6._capt(y = _rec6._capt(x, "arguments/0/expressions/0/right"), "arguments/0/expressions/0"), _rec6._capt(z, "arguments/0/expressions/1")), {
+  content: "assert((y = x, z))",
+  filepath: "test/fixtures/SequenceExpression/fixture.js",
   line: 13
 }));
diff --git a/test/fixtures/SpreadElement/expected-presets-es2015.js b/test/fixtures/SpreadElement/expected-presets-es2015.js
index ab9b1d7..85dcf71 100644
--- a/test/fixtures/SpreadElement/expected-presets-es2015.js
+++ b/test/fixtures/SpreadElement/expected-presets-es2015.js
@@ -1,36 +1,34 @@
 'use strict';
 
-var _powerAssertVisitorKeys = '{"ArrayExpression":["elements"],"AssignmentExpression":["left","right"],"BinaryExpression":["left","right"],"Directive":["value"],"DirectiveLiteral":[],"BlockStatement":["directives","body"],"BreakStatement":["label"],"CallExpression":["callee","arguments"],"CatchClause":["param","body"],"ConditionalExpression":["test","consequent","alternate"],"ContinueStatement":["label"],"DebuggerStatement":[],"DoWhileStatement":["test","body"],"EmptyStatement":[],"ExpressionStatement":["expression"],"File":["program"],"ForInStatement":["left","right","body"],"ForStatement":["init","test","update","body"],"FunctionDeclaration":["id","params","body","returnType","typeParameters"],"FunctionExpression":["id","params","body","returnType","typeParameters"],"Identifier":["typeAnnotation"],"IfStatement":["test","consequent","alternate"],"LabeledStatement":["label","body"],"StringLiteral":[],"NumericLiteral":[],"NullLiteral":[],"BooleanLiteral":[],"RegExpLiteral":[],"LogicalExpression":["left","right"],"MemberExpression":["object","property"],"NewExpression":["callee","arguments"],"Program":["directives","body"],"ObjectExpression":["properties"],"ObjectMethod":["key","params","body","decorators","returnType","typeParameters"],"ObjectProperty":["key","value","decorators"],"RestElement":["argument","typeAnnotation"],"ReturnStatement":["argument"],"SequenceExpression":["expressions"],"SwitchCase":["test","consequent"],"SwitchStatement":["discriminant","cases"],"ThisExpression":[],"ThrowStatement":["argument"],"TryStatement":["block","handler","finalizer"],"UnaryExpression":["argument"],"UpdateExpression":["argument"],"VariableDeclaration":["declarations"],"VariableDeclarator":["id","init"],"WhileStatement":["test","body"],"WithStatement":["object","body"],"AssignmentPattern":["left","right"],"ArrayPattern":["elements","typeAnnotation"],"ArrowFunctionExpression":["params","body","returnType","typeParameters"],"ClassBody":["body"],"ClassDeclaration":["id","body","superClass","mixins","typeParameters","superTypeParameters","implements","decorators"],"ClassExpression":["id","body","superClass","mixins","typeParameters","superTypeParameters","implements","decorators"],"ExportAllDeclaration":["source"],"ExportDefaultDeclaration":["declaration"],"ExportNamedDeclaration":["declaration","specifiers","source"],"ExportSpecifier":["local","exported"],"ForOfStatement":["left","right","body"],"ImportDeclaration":["specifiers","source"],"ImportDefaultSpecifier":["local"],"ImportNamespaceSpecifier":["local"],"ImportSpecifier":["local","imported"],"MetaProperty":["meta","property"],"ClassMethod":["key","params","body","decorators","returnType","typeParameters"],"ObjectPattern":["properties","typeAnnotation"],"SpreadElement":["argument"],"Super":[],"TaggedTemplateExpression":["tag","quasi"],"TemplateElement":[],"TemplateLiteral":["quasis","expressions"],"YieldExpression":["argument"],"AnyTypeAnnotation":[],"ArrayTypeAnnotation":["elementType"],"BooleanTypeAnnotation":[],"BooleanLiteralTypeAnnotation":[],"NullLiteralTypeAnnotation":[],"ClassImplements":["id","typeParameters"],"ClassProperty":["key","value","typeAnnotation","decorators"],"DeclareClass":["id","typeParameters","extends","body"],"DeclareFunction":["id"],"DeclareInterface":["id","typeParameters","extends","body"],"DeclareModule":["id","body"],"DeclareModuleExports":["typeAnnotation"],"DeclareTypeAlias":["id","typeParameters","right"],"DeclareOpaqueType":["id","typeParameters","supertype"],"DeclareVariable":["id"],"DeclareExportDeclaration":["declaration","specifiers","source"],"ExistentialTypeParam":[],"FunctionTypeAnnotation":["typeParameters","params","rest","returnType"],"FunctionTypeParam":["name","typeAnnotation"],"GenericTypeAnnotation":["id","typeParameters"],"InterfaceExtends":["id","typeParameters"],"InterfaceDeclaration":["id","typeParameters","extends","body"],"IntersectionTypeAnnotation":["types"],"MixedTypeAnnotation":[],"EmptyTypeAnnotation":[],"NullableTypeAnnotation":["typeAnnotation"],"NumericLiteralTypeAnnotation":[],"NumberTypeAnnotation":[],"StringLiteralTypeAnnotation":[],"StringTypeAnnotation":[],"ThisTypeAnnotation":[],"TupleTypeAnnotation":["types"],"TypeofTypeAnnotation":["argument"],"TypeAlias":["id","typeParameters","right"],"OpaqueType":["id","typeParameters","impltype","supertype"],"TypeAnnotation":["typeAnnotation"],"TypeCastExpression":["expression","typeAnnotation"],"TypeParameter":["bound"],"TypeParameterDeclaration":["params"],"TypeParameterInstantiation":["params"],"ObjectTypeAnnotation":["properties","indexers","callProperties"],"ObjectTypeCallProperty":["value"],"ObjectTypeIndexer":["id","key","value"],"ObjectTypeProperty":["key","value"],"ObjectTypeSpreadProperty":["argument"],"QualifiedTypeIdentifier":["id","qualification"],"UnionTypeAnnotation":["types"],"VoidTypeAnnotation":[],"JSXAttribute":["name","value"],"JSXClosingElement":["name"],"JSXElement":["openingElement","children","closingElement"],"JSXEmptyExpression":[],"JSXExpressionContainer":["expression"],"JSXSpreadChild":["expression"],"JSXIdentifier":[],"JSXMemberExpression":["object","property"],"JSXNamespacedName":["namespace","name"],"JSXOpeningElement":["name","attributes"],"JSXSpreadAttribute":["argument"],"JSXText":[],"Noop":[],"ParenthesizedExpression":["expression"],"AwaitExpression":["argument"],"ForAwaitStatement":["left","right","body"],"BindExpression":["object","callee"],"Import":[],"Decorator":["expression"],"DoExpression":["body"],"ExportDefaultSpecifier":["exported"],"ExportNamespaceSpecifier":["exported"],"RestProperty":["argument"],"SpreadProperty":["argument"]}',
+var _powerAssertVisitorKeys = "{\"ArrayExpression\":[\"elements\"],\"AssignmentExpression\":[\"left\",\"right\"],\"BinaryExpression\":[\"left\",\"right\"],\"Directive\":[\"value\"],\"DirectiveLiteral\":[],\"BlockStatement\":[\"directives\",\"body\"],\"BreakStatement\":[\"label\"],\"CallExpression\":[\"callee\",\"arguments\",\"typeParameters\"],\"CatchClause\":[\"param\",\"body\"],\"ConditionalExpression\":[\"test\",\"consequent\",\"alternate\"],\"ContinueStatement\":[\"label\"],\"DebuggerStatement\":[],\"DoWhileStatement\":[\"test\",\"body\"],\"EmptyStatement\":[],\"ExpressionStatement\":[\"expression\"],\"File\":[\"program\"],\"ForInStatement\":[\"left\",\"right\",\"body\"],\"ForStatement\":[\"init\",\"test\",\"update\",\"body\"],\"FunctionDeclaration\":[\"id\",\"params\",\"body\",\"returnType\",\"typeParameters\"],\"FunctionExpression\":[\"id\",\"params\",\"body\",\"returnType\",\"typeParameters\"],\"Identifier\":[\"typeAnnotation\"],\"IfStatement\":[\"test\",\"consequent\",\"alternate\"],\"LabeledStatement\":[\"label\",\"body\"],\"StringLiteral\":[],\"NumericLiteral\":[],\"NullLiteral\":[],\"BooleanLiteral\":[],\"RegExpLiteral\":[],\"LogicalExpression\":[\"left\",\"right\"],\"MemberExpression\":[\"object\",\"property\"],\"NewExpression\":[\"callee\",\"arguments\",\"typeParameters\"],\"Program\":[\"directives\",\"body\"],\"ObjectExpression\":[\"properties\"],\"ObjectMethod\":[\"key\",\"params\",\"body\",\"decorators\",\"returnType\",\"typeParameters\"],\"ObjectProperty\":[\"key\",\"value\",\"decorators\"],\"RestElement\":[\"argument\",\"typeAnnotation\"],\"ReturnStatement\":[\"argument\"],\"SequenceExpression\":[\"expressions\"],\"SwitchCase\":[\"test\",\"consequent\"],\"SwitchStatement\":[\"discriminant\",\"cases\"],\"ThisExpression\":[],\"ThrowStatement\":[\"argument\"],\"TryStatement\":[\"block\",\"handler\",\"finalizer\"],\"UnaryExpression\":[\"argument\"],\"UpdateExpression\":[\"argument\"],\"VariableDeclaration\":[\"declarations\"],\"VariableDeclarator\":[\"id\",\"init\"],\"WhileStatement\":[\"test\",\"body\"],\"WithStatement\":[\"object\",\"body\"],\"AssignmentPattern\":[\"left\",\"right\"],\"ArrayPattern\":[\"elements\",\"typeAnnotation\"],\"ArrowFunctionExpression\":[\"params\",\"body\",\"returnType\",\"typeParameters\"],\"ClassBody\":[\"body\"],\"ClassDeclaration\":[\"id\",\"body\",\"superClass\",\"mixins\",\"typeParameters\",\"superTypeParameters\",\"implements\",\"decorators\"],\"ClassExpression\":[\"id\",\"body\",\"superClass\",\"mixins\",\"typeParameters\",\"superTypeParameters\",\"implements\",\"decorators\"],\"ExportAllDeclaration\":[\"source\"],\"ExportDefaultDeclaration\":[\"declaration\"],\"ExportNamedDeclaration\":[\"declaration\",\"specifiers\",\"source\"],\"ExportSpecifier\":[\"local\",\"exported\"],\"ForOfStatement\":[\"left\",\"right\",\"body\"],\"ImportDeclaration\":[\"specifiers\",\"source\"],\"ImportDefaultSpecifier\":[\"local\"],\"ImportNamespaceSpecifier\":[\"local\"],\"ImportSpecifier\":[\"local\",\"imported\"],\"MetaProperty\":[\"meta\",\"property\"],\"ClassMethod\":[\"key\",\"params\",\"body\",\"decorators\",\"returnType\",\"typeParameters\"],\"ObjectPattern\":[\"properties\",\"typeAnnotation\"],\"SpreadElement\":[\"argument\"],\"Super\":[],\"TaggedTemplateExpression\":[\"tag\",\"quasi\"],\"TemplateElement\":[],\"TemplateLiteral\":[\"quasis\",\"expressions\"],\"YieldExpression\":[\"argument\"],\"AnyTypeAnnotation\":[],\"ArrayTypeAnnotation\":[\"elementType\"],\"BooleanTypeAnnotation\":[],\"BooleanLiteralTypeAnnotation\":[],\"NullLiteralTypeAnnotation\":[],\"ClassImplements\":[\"id\",\"typeParameters\"],\"DeclareClass\":[\"id\",\"typeParameters\",\"extends\",\"body\"],\"DeclareFunction\":[\"id\"],\"DeclareInterface\":[\"id\",\"typeParameters\",\"extends\",\"body\"],\"DeclareModule\":[\"id\",\"body\"],\"DeclareModuleExports\":[\"typeAnnotation\"],\"DeclareTypeAlias\":[\"id\",\"typeParameters\",\"right\"],\"DeclareOpaqueType\":[\"id\",\"typeParameters\",\"supertype\"],\"DeclareVariable\":[\"id\"],\"DeclareExportDeclaration\":[\"declaration\",\"specifiers\",\"source\"],\"DeclareExportAllDeclaration\":[\"source\"],\"DeclaredPredicate\":[\"value\"],\"ExistsTypeAnnotation\":[],\"FunctionTypeAnnotation\":[\"typeParameters\",\"params\",\"rest\",\"returnType\"],\"FunctionTypeParam\":[\"name\",\"typeAnnotation\"],\"GenericTypeAnnotation\":[\"id\",\"typeParameters\"],\"InferredPredicate\":[],\"InterfaceExtends\":[\"id\",\"typeParameters\"],\"InterfaceDeclaration\":[\"id\",\"typeParameters\",\"extends\",\"body\"],\"IntersectionTypeAnnotation\":[\"types\"],\"MixedTypeAnnotation\":[],\"EmptyTypeAnnotation\":[],\"NullableTypeAnnotation\":[\"typeAnnotation\"],\"NumberLiteralTypeAnnotation\":[],\"NumberTypeAnnotation\":[],\"ObjectTypeAnnotation\":[\"properties\",\"indexers\",\"callProperties\"],\"ObjectTypeCallProperty\":[\"value\"],\"ObjectTypeIndexer\":[\"id\",\"key\",\"value\"],\"ObjectTypeProperty\":[\"key\",\"value\"],\"ObjectTypeSpreadProperty\":[\"argument\"],\"OpaqueType\":[\"id\",\"typeParameters\",\"supertype\",\"impltype\"],\"QualifiedTypeIdentifier\":[\"id\",\"qualification\"],\"StringLiteralTypeAnnotation\":[],\"StringTypeAnnotation\":[],\"ThisTypeAnnotation\":[],\"TupleTypeAnnotation\":[\"types\"],\"TypeofTypeAnnotation\":[\"argument\"],\"TypeAlias\":[\"id\",\"typeParameters\",\"right\"],\"TypeAnnotation\":[\"typeAnnotation\"],\"TypeCastExpression\":[\"expression\",\"typeAnnotation\"],\"TypeParameter\":[\"bound\",\"default\"],\"TypeParameterDeclaration\":[\"params\"],\"TypeParameterInstantiation\":[\"params\"],\"UnionTypeAnnotation\":[\"types\"],\"VoidTypeAnnotation\":[],\"JSXAttribute\":[\"name\",\"value\"],\"JSXClosingElement\":[\"name\"],\"JSXElement\":[\"openingElement\",\"children\",\"closingElement\"],\"JSXEmptyExpression\":[],\"JSXExpressionContainer\":[\"expression\"],\"JSXSpreadChild\":[\"expression\"],\"JSXIdentifier\":[],\"JSXMemberExpression\":[\"object\",\"property\"],\"JSXNamespacedName\":[\"namespace\",\"name\"],\"JSXOpeningElement\":[\"name\",\"attributes\"],\"JSXSpreadAttribute\":[\"argument\"],\"JSXText\":[],\"JSXFragment\":[\"openingFragment\",\"children\",\"closingFragment\"],\"JSXOpeningFragment\":[],\"JSXClosingFragment\":[],\"Noop\":[],\"ParenthesizedExpression\":[\"expression\"],\"AwaitExpression\":[\"argument\"],\"BindExpression\":[\"object\",\"callee\"],\"ClassProperty\":[\"key\",\"value\",\"typeAnnotation\",\"decorators\"],\"Import\":[],\"Decorator\":[\"expression\"],\"DoExpression\":[\"body\"],\"ExportDefaultSpecifier\":[\"exported\"],\"ExportNamespaceSpecifier\":[\"exported\"],\"TSParameterProperty\":[\"parameter\"],\"TSDeclareFunction\":[\"id\",\"typeParameters\",\"params\",\"returnType\"],\"TSDeclareMethod\":[\"decorators\",\"key\",\"typeParameters\",\"params\",\"returnType\"],\"TSQualifiedName\":[\"left\",\"right\"],\"TSCallSignatureDeclaration\":[\"typeParameters\",\"parameters\",\"typeAnnotation\"],\"TSConstructSignatureDeclaration\":[\"typeParameters\",\"parameters\",\"typeAnnotation\"],\"TSPropertySignature\":[\"key\",\"typeAnnotation\",\"initializer\"],\"TSMethodSignature\":[\"key\",\"typeParameters\",\"parameters\",\"typeAnnotation\"],\"TSIndexSignature\":[\"parameters\",\"typeAnnotation\"],\"TSAnyKeyword\":[],\"TSNumberKeyword\":[],\"TSObjectKeyword\":[],\"TSBooleanKeyword\":[],\"TSStringKeyword\":[],\"TSSymbolKeyword\":[],\"TSVoidKeyword\":[],\"TSUndefinedKeyword\":[],\"TSNullKeyword\":[],\"TSNeverKeyword\":[],\"TSThisType\":[],\"TSFunctionType\":[\"typeParameters\",\"typeAnnotation\"],\"TSConstructorType\":[\"typeParameters\",\"typeAnnotation\"],\"TSTypeReference\":[\"typeName\",\"typeParameters\"],\"TSTypePredicate\":[\"parameterName\",\"typeAnnotation\"],\"TSTypeQuery\":[\"exprName\"],\"TSTypeLiteral\":[\"members\"],\"TSArrayType\":[\"elementType\"],\"TSTupleType\":[\"elementTypes\"],\"TSUnionType\":[\"types\"],\"TSIntersectionType\":[\"types\"],\"TSParenthesizedType\":[\"typeAnnotation\"],\"TSTypeOperator\":[\"typeAnnotation\"],\"TSIndexedAccessType\":[\"objectType\",\"indexType\"],\"TSMappedType\":[\"typeParameter\",\"typeAnnotation\"],\"TSLiteralType\":[\"literal\"],\"TSExpressionWithTypeArguments\":[\"expression\",\"typeParameters\"],\"TSInterfaceDeclaration\":[\"id\",\"typeParameters\",\"extends\",\"body\"],\"TSInterfaceBody\":[\"body\"],\"TSTypeAliasDeclaration\":[\"id\",\"typeParameters\",\"typeAnnotation\"],\"TSAsExpression\":[\"expression\",\"typeAnnotation\"],\"TSTypeAssertion\":[\"typeAnnotation\",\"expression\"],\"TSEnumDeclaration\":[\"id\",\"members\"],\"TSEnumMember\":[\"id\",\"initializer\"],\"TSModuleDeclaration\":[\"id\",\"body\"],\"TSModuleBlock\":[\"body\"],\"TSImportEqualsDeclaration\":[\"id\",\"moduleReference\"],\"TSExternalModuleReference\":[\"expression\"],\"TSNonNullExpression\":[\"expression\"],\"TSExportAssignment\":[\"expression\"],\"TSNamespaceExportDeclaration\":[\"id\"],\"TSTypeAnnotation\":[\"typeAnnotation\"],\"TSTypeParameterInstantiation\":[\"params\"],\"TSTypeParameterDeclaration\":[\"params\"],\"TSTypeParameter\":[\"constraint\",\"default\"]}",
     _powerAssertRecorder = function () { function PowerAssertRecorder() { this.captured = []; } PowerAssertRecorder.prototype._capt = function _capt(value, espath) { this.captured.push({ value: value, espath: espath }); return value; }; PowerAssertRecorder.prototype._expr = function _expr(value, source) { var capturedValues = this.captured; this.captured = []; return { powerAssertContext: { value: value, events: capturedValues }, source: source }; }; return PowerAssertRecorder; }(),
     _rec = new _powerAssertRecorder(),
     _rec2 = new _powerAssertRecorder(),
     _rec3 = new _powerAssertRecorder();
 
-function _toConsumableArray(arr) { if (Array.isArray(arr)) { for (var i = 0, arr2 = Array(arr.length); i < arr.length; i++) { arr2[i] = arr[i]; } return arr2; } else { return Array.from(arr); } }
+function _toConsumableArray(arr) { if (Array.isArray(arr)) { for (var i = 0, arr2 = new Array(arr.length); i < arr.length; i++) { arr2[i] = arr[i]; } return arr2; } else { return Array.from(arr); } }
 
-assert(_rec._expr(_rec._capt(hello.apply(undefined, _toConsumableArray(_rec._capt(names, 'arguments/0/arguments/0/argument'))), 'arguments/0'), {
-  content: 'assert(hello(...names))',
-  filepath: 'test/fixtures/SpreadElement/fixture.js',
+assert(_rec._expr(_rec._capt(hello.apply(void 0, _toConsumableArray(_rec._capt(names, "arguments/0/arguments/0/argument"))), "arguments/0"), {
+  content: "assert(hello(...names))",
+  filepath: "test/fixtures/SpreadElement/fixture.js",
   line: 3,
-  ast: '{"type":"CallExpression","callee":{"type":"Identifier","name":"assert","range":[0,6]},"arguments":[{"type":"CallExpression","callee":{"type":"Identifier","name":"hello","range":[7,12]},"arguments":[{"type":"SpreadElement","argument":{"type":"Identifier","name":"names","range":[16,21]},"range":[13,21]}],"range":[7,22]}],"range":[0,23]}',
-  tokens: '[{"type":{"label":"name"},"value":"assert","range":[0,6]},{"type":{"label":"("},"range":[6,7]},{"type":{"label":"name"},"value":"hello","range":[7,12]},{"type":{"label":"("},"range":[12,13]},{"type":{"label":"..."},"range":[13,16]},{"type":{"label":"name"},"value":"names","range":[16,21]},{"type":{"label":")"},"range":[21,22]},{"type":{"label":")"},"range":[22,23]}]',
+  ast: "{\"type\":\"CallExpression\",\"callee\":{\"type\":\"Identifier\",\"name\":\"assert\",\"range\":[0,6]},\"arguments\":[{\"type\":\"CallExpression\",\"callee\":{\"type\":\"Identifier\",\"name\":\"hello\",\"range\":[7,12]},\"arguments\":[{\"type\":\"SpreadElement\",\"argument\":{\"type\":\"Identifier\",\"name\":\"names\",\"range\":[16,21]},\"range\":[13,21]}],\"range\":[7,22]}],\"range\":[0,23]}",
+  tokens: "[{\"type\":{\"label\":\"name\"},\"value\":\"assert\",\"range\":[0,6]},{\"type\":{\"label\":\"(\"},\"range\":[6,7]},{\"type\":{\"label\":\"name\"},\"value\":\"hello\",\"range\":[7,12]},{\"type\":{\"label\":\"(\"},\"range\":[12,13]},{\"type\":{\"label\":\"...\"},\"range\":[13,16]},{\"type\":{\"label\":\"name\"},\"value\":\"names\",\"range\":[16,21]},{\"type\":{\"label\":\")\"},\"range\":[21,22]},{\"type\":{\"label\":\")\"},\"range\":[22,23]}]",
   visitorKeys: _powerAssertVisitorKeys
 }));
-
-assert(_rec2._expr(_rec2._capt(_rec2._capt([_rec2._capt(head, 'arguments/0/object/elements/0')].concat(_toConsumableArray(_rec2._capt(tail, 'arguments/0/object/elements/1/argument'))), 'arguments/0/object').length, 'arguments/0'), {
-  content: 'assert([head, ...tail].length)',
-  filepath: 'test/fixtures/SpreadElement/fixture.js',
+assert(_rec2._expr(_rec2._capt(_rec2._capt([_rec2._capt(head, "arguments/0/object/elements/0")].concat(_toConsumableArray(_rec2._capt(tail, "arguments/0/object/elements/1/argument"))), "arguments/0/object").length, "arguments/0"), {
+  content: "assert([head, ...tail].length)",
+  filepath: "test/fixtures/SpreadElement/fixture.js",
   line: 5,
-  ast: '{"type":"CallExpression","callee":{"type":"Identifier","name":"assert","range":[0,6]},"arguments":[{"type":"MemberExpression","object":{"type":"ArrayExpression","elements":[{"type":"Identifier","name":"head","range":[8,12]},{"type":"SpreadElement","argument":{"type":"Identifier","name":"tail","range":[17,21]},"range":[14,21]}],"range":[7,22]},"property":{"type":"Identifier","name":"length","range":[23,29]},"computed":false,"range":[7,29]}],"range":[0,30]}',
-  tokens: '[{"type":{"label":"name"},"value":"assert","range":[0,6]},{"type":{"label":"("},"range":[6,7]},{"type":{"label":"["},"range":[7,8]},{"type":{"label":"name"},"value":"head","range":[8,12]},{"type":{"label":","},"range":[12,13]},{"type":{"label":"..."},"range":[14,17]},{"type":{"label":"name"},"value":"tail","range":[17,21]},{"type":{"label":"]"},"range":[21,22]},{"type":{"label":"."},"range":[22,23]},{"type":{"label":"name"},"value":"length","range":[23,29]},{"type":{"label":")"},"range":[29,30]}]',
+  ast: "{\"type\":\"CallExpression\",\"callee\":{\"type\":\"Identifier\",\"name\":\"assert\",\"range\":[0,6]},\"arguments\":[{\"type\":\"MemberExpression\",\"object\":{\"type\":\"ArrayExpression\",\"elements\":[{\"type\":\"Identifier\",\"name\":\"head\",\"range\":[8,12]},{\"type\":\"SpreadElement\",\"argument\":{\"type\":\"Identifier\",\"name\":\"tail\",\"range\":[17,21]},\"range\":[14,21]}],\"range\":[7,22]},\"property\":{\"type\":\"Identifier\",\"name\":\"length\",\"range\":[23,29]},\"computed\":false,\"range\":[7,29]}],\"range\":[0,30]}",
+  tokens: "[{\"type\":{\"label\":\"name\"},\"value\":\"assert\",\"range\":[0,6]},{\"type\":{\"label\":\"(\"},\"range\":[6,7]},{\"type\":{\"label\":\"[\"},\"range\":[7,8]},{\"type\":{\"label\":\"name\"},\"value\":\"head\",\"range\":[8,12]},{\"type\":{\"label\":\",\"},\"range\":[12,13]},{\"type\":{\"label\":\"...\"},\"range\":[14,17]},{\"type\":{\"label\":\"name\"},\"value\":\"tail\",\"range\":[17,21]},{\"type\":{\"label\":\"]\"},\"range\":[21,22]},{\"type\":{\"label\":\".\"},\"range\":[22,23]},{\"type\":{\"label\":\"name\"},\"value\":\"length\",\"range\":[23,29]},{\"type\":{\"label\":\")\"},\"range\":[29,30]}]",
   visitorKeys: _powerAssertVisitorKeys
 }));
-
-assert(_rec3._expr(_rec3._capt(f.apply(undefined, [_rec3._capt(head, 'arguments/0/arguments/0')].concat(_toConsumableArray(_rec3._capt(iter(), 'arguments/0/arguments/1/argument')), _toConsumableArray(_rec3._capt([_rec3._capt(foo, 'arguments/0/arguments/2/argument/elements/0'), _rec3._capt(bar, 'arguments/0/arguments/2/argument/elements/1')], 'arguments/0/arguments/2/argument')))), 'arguments/0'), {
-  content: 'assert(f(head, ...iter(), ...[foo, bar]))',
-  filepath: 'test/fixtures/SpreadElement/fixture.js',
+assert(_rec3._expr(_rec3._capt(f.apply(void 0, [_rec3._capt(head, "arguments/0/arguments/0")].concat(_toConsumableArray(_rec3._capt(iter(), "arguments/0/arguments/1/argument")), _toConsumableArray(_rec3._capt([_rec3._capt(foo, "arguments/0/arguments/2/argument/elements/0"), _rec3._capt(bar, "arguments/0/arguments/2/argument/elements/1")], "arguments/0/arguments/2/argument")))), "arguments/0"), {
+  content: "assert(f(head, ...iter(), ...[foo, bar]))",
+  filepath: "test/fixtures/SpreadElement/fixture.js",
   line: 7,
-  ast: '{"type":"CallExpression","callee":{"type":"Identifier","name":"assert","range":[0,6]},"arguments":[{"type":"CallExpression","callee":{"type":"Identifier","name":"f","range":[7,8]},"arguments":[{"type":"Identifier","name":"head","range":[9,13]},{"type":"SpreadElement","argument":{"type":"CallExpression","callee":{"type":"Identifier","name":"iter","range":[18,22]},"arguments":[],"range":[18,24]},"range":[15,24]},{"type":"SpreadElement","argument":{"type":"ArrayExpression","elements":[{"type":"Identifier","name":"foo","range":[30,33]},{"type":"Identifier","name":"bar","range":[35,38]}],"range":[29,39]},"range":[26,39]}],"range":[7,40]}],"range":[0,41]}',
-  tokens: '[{"type":{"label":"name"},"value":"assert","range":[0,6]},{"type":{"label":"("},"range":[6,7]},{"type":{"label":"name"},"value":"f","range":[7,8]},{"type":{"label":"("},"range":[8,9]},{"type":{"label":"name"},"value":"head","range":[9,13]},{"type":{"label":","},"range":[13,14]},{"type":{"label":"..."},"range":[15,18]},{"type":{"label":"name"},"value":"iter","range":[18,22]},{"type":{"label":"("},"range":[22,23]},{"type":{"label":")"},"range":[23,24]},{"type":{"label":","},"range":[24,25]},{"type":{"label":"..."},"range":[26,29]},{"type":{"label":"["},"range":[29,30]},{"type":{"label":"name"},"value":"foo","range":[30,33]},{"type":{"label":","},"range":[33,34]},{"type":{"label":"name"},"value":"bar","range":[35,38]},{"type":{"label":"]"},"range":[38,39]},{"type":{"label":")"},"range":[39,40]},{"type":{"label":")"},"range":[40,41]}]',
+  ast: "{\"type\":\"CallExpression\",\"callee\":{\"type\":\"Identifier\",\"name\":\"assert\",\"range\":[0,6]},\"arguments\":[{\"type\":\"CallExpression\",\"callee\":{\"type\":\"Identifier\",\"name\":\"f\",\"range\":[7,8]},\"arguments\":[{\"type\":\"Identifier\",\"name\":\"head\",\"range\":[9,13]},{\"type\":\"SpreadElement\",\"argument\":{\"type\":\"CallExpression\",\"callee\":{\"type\":\"Identifier\",\"name\":\"iter\",\"range\":[18,22]},\"arguments\":[],\"range\":[18,24]},\"range\":[15,24]},{\"type\":\"SpreadElement\",\"argument\":{\"type\":\"ArrayExpression\",\"elements\":[{\"type\":\"Identifier\",\"name\":\"foo\",\"range\":[30,33]},{\"type\":\"Identifier\",\"name\":\"bar\",\"range\":[35,38]}],\"range\":[29,39]},\"range\":[26,39]}],\"range\":[7,40]}],\"range\":[0,41]}",
+  tokens: "[{\"type\":{\"label\":\"name\"},\"value\":\"assert\",\"range\":[0,6]},{\"type\":{\"label\":\"(\"},\"range\":[6,7]},{\"type\":{\"label\":\"name\"},\"value\":\"f\",\"range\":[7,8]},{\"type\":{\"label\":\"(\"},\"range\":[8,9]},{\"type\":{\"label\":\"name\"},\"value\":\"head\",\"range\":[9,13]},{\"type\":{\"label\":\",\"},\"range\":[13,14]},{\"type\":{\"label\":\"...\"},\"range\":[15,18]},{\"type\":{\"label\":\"name\"},\"value\":\"iter\",\"range\":[18,22]},{\"type\":{\"label\":\"(\"},\"range\":[22,23]},{\"type\":{\"label\":\")\"},\"range\":[23,24]},{\"type\":{\"label\":\",\"},\"range\":[24,25]},{\"type\":{\"label\":\"...\"},\"range\":[26,29]},{\"type\":{\"label\":\"[\"},\"range\":[29,30]},{\"type\":{\"label\":\"name\"},\"value\":\"foo\",\"range\":[30,33]},{\"type\":{\"label\":\",\"},\"range\":[33,34]},{\"type\":{\"label\":\"name\"},\"value\":\"bar\",\"range\":[35,38]},{\"type\":{\"label\":\"]\"},\"range\":[38,39]},{\"type\":{\"label\":\")\"},\"range\":[39,40]},{\"type\":{\"label\":\")\"},\"range\":[40,41]}]",
   visitorKeys: _powerAssertVisitorKeys
 }));
diff --git a/test/fixtures/SpreadElement/expected.js b/test/fixtures/SpreadElement/expected.js
index 9e080e1..941219b 100644
--- a/test/fixtures/SpreadElement/expected.js
+++ b/test/fixtures/SpreadElement/expected.js
@@ -5,20 +5,18 @@ var _powerAssertRecorder = function () { function PowerAssertRecorder() { this.c
     _rec2 = new _powerAssertRecorder(),
     _rec3 = new _powerAssertRecorder();
 
-assert(_rec._expr(_rec._capt(hello(..._rec._capt(names, 'arguments/0/arguments/0/argument')), 'arguments/0'), {
-  content: 'assert(hello(...names))',
-  filepath: 'test/fixtures/SpreadElement/fixture.js',
+assert(_rec._expr(_rec._capt(hello(..._rec._capt(names, "arguments/0/arguments/0/argument")), "arguments/0"), {
+  content: "assert(hello(...names))",
+  filepath: "test/fixtures/SpreadElement/fixture.js",
   line: 3
 }));
-
-assert(_rec2._expr(_rec2._capt(_rec2._capt([_rec2._capt(head, 'arguments/0/object/elements/0'), ..._rec2._capt(tail, 'arguments/0/object/elements/1/argument')], 'arguments/0/object').length, 'arguments/0'), {
-  content: 'assert([head, ...tail].length)',
-  filepath: 'test/fixtures/SpreadElement/fixture.js',
+assert(_rec2._expr(_rec2._capt(_rec2._capt([_rec2._capt(head, "arguments/0/object/elements/0"), ..._rec2._capt(tail, "arguments/0/object/elements/1/argument")], "arguments/0/object").length, "arguments/0"), {
+  content: "assert([head, ...tail].length)",
+  filepath: "test/fixtures/SpreadElement/fixture.js",
   line: 5
 }));
-
-assert(_rec3._expr(_rec3._capt(f(_rec3._capt(head, 'arguments/0/arguments/0'), ..._rec3._capt(iter(), 'arguments/0/arguments/1/argument'), ..._rec3._capt([_rec3._capt(foo, 'arguments/0/arguments/2/argument/elements/0'), _rec3._capt(bar, 'arguments/0/arguments/2/argument/elements/1')], 'arguments/0/arguments/2/argument')), 'arguments/0'), {
-  content: 'assert(f(head, ...iter(), ...[foo, bar]))',
-  filepath: 'test/fixtures/SpreadElement/fixture.js',
+assert(_rec3._expr(_rec3._capt(f(_rec3._capt(head, "arguments/0/arguments/0"), ..._rec3._capt(iter(), "arguments/0/arguments/1/argument"), ..._rec3._capt([_rec3._capt(foo, "arguments/0/arguments/2/argument/elements/0"), _rec3._capt(bar, "arguments/0/arguments/2/argument/elements/1")], "arguments/0/arguments/2/argument")), "arguments/0"), {
+  content: "assert(f(head, ...iter(), ...[foo, bar]))",
+  filepath: "test/fixtures/SpreadElement/fixture.js",
   line: 7
 }));
diff --git a/test/fixtures/TaggedTemplateExpression/expected-presets-es2015.js b/test/fixtures/TaggedTemplateExpression/expected-presets-es2015.js
index 1e50054..61e329f 100644
--- a/test/fixtures/TaggedTemplateExpression/expected-presets-es2015.js
+++ b/test/fixtures/TaggedTemplateExpression/expected-presets-es2015.js
@@ -1,40 +1,38 @@
 'use strict';
 
-var _powerAssertVisitorKeys = '{"ArrayExpression":["elements"],"AssignmentExpression":["left","right"],"BinaryExpression":["left","right"],"Directive":["value"],"DirectiveLiteral":[],"BlockStatement":["directives","body"],"BreakStatement":["label"],"CallExpression":["callee","arguments"],"CatchClause":["param","body"],"ConditionalExpression":["test","consequent","alternate"],"ContinueStatement":["label"],"DebuggerStatement":[],"DoWhileStatement":["test","body"],"EmptyStatement":[],"ExpressionStatement":["expression"],"File":["program"],"ForInStatement":["left","right","body"],"ForStatement":["init","test","update","body"],"FunctionDeclaration":["id","params","body","returnType","typeParameters"],"FunctionExpression":["id","params","body","returnType","typeParameters"],"Identifier":["typeAnnotation"],"IfStatement":["test","consequent","alternate"],"LabeledStatement":["label","body"],"StringLiteral":[],"NumericLiteral":[],"NullLiteral":[],"BooleanLiteral":[],"RegExpLiteral":[],"LogicalExpression":["left","right"],"MemberExpression":["object","property"],"NewExpression":["callee","arguments"],"Program":["directives","body"],"ObjectExpression":["properties"],"ObjectMethod":["key","params","body","decorators","returnType","typeParameters"],"ObjectProperty":["key","value","decorators"],"RestElement":["argument","typeAnnotation"],"ReturnStatement":["argument"],"SequenceExpression":["expressions"],"SwitchCase":["test","consequent"],"SwitchStatement":["discriminant","cases"],"ThisExpression":[],"ThrowStatement":["argument"],"TryStatement":["block","handler","finalizer"],"UnaryExpression":["argument"],"UpdateExpression":["argument"],"VariableDeclaration":["declarations"],"VariableDeclarator":["id","init"],"WhileStatement":["test","body"],"WithStatement":["object","body"],"AssignmentPattern":["left","right"],"ArrayPattern":["elements","typeAnnotation"],"ArrowFunctionExpression":["params","body","returnType","typeParameters"],"ClassBody":["body"],"ClassDeclaration":["id","body","superClass","mixins","typeParameters","superTypeParameters","implements","decorators"],"ClassExpression":["id","body","superClass","mixins","typeParameters","superTypeParameters","implements","decorators"],"ExportAllDeclaration":["source"],"ExportDefaultDeclaration":["declaration"],"ExportNamedDeclaration":["declaration","specifiers","source"],"ExportSpecifier":["local","exported"],"ForOfStatement":["left","right","body"],"ImportDeclaration":["specifiers","source"],"ImportDefaultSpecifier":["local"],"ImportNamespaceSpecifier":["local"],"ImportSpecifier":["local","imported"],"MetaProperty":["meta","property"],"ClassMethod":["key","params","body","decorators","returnType","typeParameters"],"ObjectPattern":["properties","typeAnnotation"],"SpreadElement":["argument"],"Super":[],"TaggedTemplateExpression":["tag","quasi"],"TemplateElement":[],"TemplateLiteral":["quasis","expressions"],"YieldExpression":["argument"],"AnyTypeAnnotation":[],"ArrayTypeAnnotation":["elementType"],"BooleanTypeAnnotation":[],"BooleanLiteralTypeAnnotation":[],"NullLiteralTypeAnnotation":[],"ClassImplements":["id","typeParameters"],"ClassProperty":["key","value","typeAnnotation","decorators"],"DeclareClass":["id","typeParameters","extends","body"],"DeclareFunction":["id"],"DeclareInterface":["id","typeParameters","extends","body"],"DeclareModule":["id","body"],"DeclareModuleExports":["typeAnnotation"],"DeclareTypeAlias":["id","typeParameters","right"],"DeclareOpaqueType":["id","typeParameters","supertype"],"DeclareVariable":["id"],"DeclareExportDeclaration":["declaration","specifiers","source"],"ExistentialTypeParam":[],"FunctionTypeAnnotation":["typeParameters","params","rest","returnType"],"FunctionTypeParam":["name","typeAnnotation"],"GenericTypeAnnotation":["id","typeParameters"],"InterfaceExtends":["id","typeParameters"],"InterfaceDeclaration":["id","typeParameters","extends","body"],"IntersectionTypeAnnotation":["types"],"MixedTypeAnnotation":[],"EmptyTypeAnnotation":[],"NullableTypeAnnotation":["typeAnnotation"],"NumericLiteralTypeAnnotation":[],"NumberTypeAnnotation":[],"StringLiteralTypeAnnotation":[],"StringTypeAnnotation":[],"ThisTypeAnnotation":[],"TupleTypeAnnotation":["types"],"TypeofTypeAnnotation":["argument"],"TypeAlias":["id","typeParameters","right"],"OpaqueType":["id","typeParameters","impltype","supertype"],"TypeAnnotation":["typeAnnotation"],"TypeCastExpression":["expression","typeAnnotation"],"TypeParameter":["bound"],"TypeParameterDeclaration":["params"],"TypeParameterInstantiation":["params"],"ObjectTypeAnnotation":["properties","indexers","callProperties"],"ObjectTypeCallProperty":["value"],"ObjectTypeIndexer":["id","key","value"],"ObjectTypeProperty":["key","value"],"ObjectTypeSpreadProperty":["argument"],"QualifiedTypeIdentifier":["id","qualification"],"UnionTypeAnnotation":["types"],"VoidTypeAnnotation":[],"JSXAttribute":["name","value"],"JSXClosingElement":["name"],"JSXElement":["openingElement","children","closingElement"],"JSXEmptyExpression":[],"JSXExpressionContainer":["expression"],"JSXSpreadChild":["expression"],"JSXIdentifier":[],"JSXMemberExpression":["object","property"],"JSXNamespacedName":["namespace","name"],"JSXOpeningElement":["name","attributes"],"JSXSpreadAttribute":["argument"],"JSXText":[],"Noop":[],"ParenthesizedExpression":["expression"],"AwaitExpression":["argument"],"ForAwaitStatement":["left","right","body"],"BindExpression":["object","callee"],"Import":[],"Decorator":["expression"],"DoExpression":["body"],"ExportDefaultSpecifier":["exported"],"ExportNamespaceSpecifier":["exported"],"RestProperty":["argument"],"SpreadProperty":["argument"]}',
+var _powerAssertVisitorKeys = "{\"ArrayExpression\":[\"elements\"],\"AssignmentExpression\":[\"left\",\"right\"],\"BinaryExpression\":[\"left\",\"right\"],\"Directive\":[\"value\"],\"DirectiveLiteral\":[],\"BlockStatement\":[\"directives\",\"body\"],\"BreakStatement\":[\"label\"],\"CallExpression\":[\"callee\",\"arguments\",\"typeParameters\"],\"CatchClause\":[\"param\",\"body\"],\"ConditionalExpression\":[\"test\",\"consequent\",\"alternate\"],\"ContinueStatement\":[\"label\"],\"DebuggerStatement\":[],\"DoWhileStatement\":[\"test\",\"body\"],\"EmptyStatement\":[],\"ExpressionStatement\":[\"expression\"],\"File\":[\"program\"],\"ForInStatement\":[\"left\",\"right\",\"body\"],\"ForStatement\":[\"init\",\"test\",\"update\",\"body\"],\"FunctionDeclaration\":[\"id\",\"params\",\"body\",\"returnType\",\"typeParameters\"],\"FunctionExpression\":[\"id\",\"params\",\"body\",\"returnType\",\"typeParameters\"],\"Identifier\":[\"typeAnnotation\"],\"IfStatement\":[\"test\",\"consequent\",\"alternate\"],\"LabeledStatement\":[\"label\",\"body\"],\"StringLiteral\":[],\"NumericLiteral\":[],\"NullLiteral\":[],\"BooleanLiteral\":[],\"RegExpLiteral\":[],\"LogicalExpression\":[\"left\",\"right\"],\"MemberExpression\":[\"object\",\"property\"],\"NewExpression\":[\"callee\",\"arguments\",\"typeParameters\"],\"Program\":[\"directives\",\"body\"],\"ObjectExpression\":[\"properties\"],\"ObjectMethod\":[\"key\",\"params\",\"body\",\"decorators\",\"returnType\",\"typeParameters\"],\"ObjectProperty\":[\"key\",\"value\",\"decorators\"],\"RestElement\":[\"argument\",\"typeAnnotation\"],\"ReturnStatement\":[\"argument\"],\"SequenceExpression\":[\"expressions\"],\"SwitchCase\":[\"test\",\"consequent\"],\"SwitchStatement\":[\"discriminant\",\"cases\"],\"ThisExpression\":[],\"ThrowStatement\":[\"argument\"],\"TryStatement\":[\"block\",\"handler\",\"finalizer\"],\"UnaryExpression\":[\"argument\"],\"UpdateExpression\":[\"argument\"],\"VariableDeclaration\":[\"declarations\"],\"VariableDeclarator\":[\"id\",\"init\"],\"WhileStatement\":[\"test\",\"body\"],\"WithStatement\":[\"object\",\"body\"],\"AssignmentPattern\":[\"left\",\"right\"],\"ArrayPattern\":[\"elements\",\"typeAnnotation\"],\"ArrowFunctionExpression\":[\"params\",\"body\",\"returnType\",\"typeParameters\"],\"ClassBody\":[\"body\"],\"ClassDeclaration\":[\"id\",\"body\",\"superClass\",\"mixins\",\"typeParameters\",\"superTypeParameters\",\"implements\",\"decorators\"],\"ClassExpression\":[\"id\",\"body\",\"superClass\",\"mixins\",\"typeParameters\",\"superTypeParameters\",\"implements\",\"decorators\"],\"ExportAllDeclaration\":[\"source\"],\"ExportDefaultDeclaration\":[\"declaration\"],\"ExportNamedDeclaration\":[\"declaration\",\"specifiers\",\"source\"],\"ExportSpecifier\":[\"local\",\"exported\"],\"ForOfStatement\":[\"left\",\"right\",\"body\"],\"ImportDeclaration\":[\"specifiers\",\"source\"],\"ImportDefaultSpecifier\":[\"local\"],\"ImportNamespaceSpecifier\":[\"local\"],\"ImportSpecifier\":[\"local\",\"imported\"],\"MetaProperty\":[\"meta\",\"property\"],\"ClassMethod\":[\"key\",\"params\",\"body\",\"decorators\",\"returnType\",\"typeParameters\"],\"ObjectPattern\":[\"properties\",\"typeAnnotation\"],\"SpreadElement\":[\"argument\"],\"Super\":[],\"TaggedTemplateExpression\":[\"tag\",\"quasi\"],\"TemplateElement\":[],\"TemplateLiteral\":[\"quasis\",\"expressions\"],\"YieldExpression\":[\"argument\"],\"AnyTypeAnnotation\":[],\"ArrayTypeAnnotation\":[\"elementType\"],\"BooleanTypeAnnotation\":[],\"BooleanLiteralTypeAnnotation\":[],\"NullLiteralTypeAnnotation\":[],\"ClassImplements\":[\"id\",\"typeParameters\"],\"DeclareClass\":[\"id\",\"typeParameters\",\"extends\",\"body\"],\"DeclareFunction\":[\"id\"],\"DeclareInterface\":[\"id\",\"typeParameters\",\"extends\",\"body\"],\"DeclareModule\":[\"id\",\"body\"],\"DeclareModuleExports\":[\"typeAnnotation\"],\"DeclareTypeAlias\":[\"id\",\"typeParameters\",\"right\"],\"DeclareOpaqueType\":[\"id\",\"typeParameters\",\"supertype\"],\"DeclareVariable\":[\"id\"],\"DeclareExportDeclaration\":[\"declaration\",\"specifiers\",\"source\"],\"DeclareExportAllDeclaration\":[\"source\"],\"DeclaredPredicate\":[\"value\"],\"ExistsTypeAnnotation\":[],\"FunctionTypeAnnotation\":[\"typeParameters\",\"params\",\"rest\",\"returnType\"],\"FunctionTypeParam\":[\"name\",\"typeAnnotation\"],\"GenericTypeAnnotation\":[\"id\",\"typeParameters\"],\"InferredPredicate\":[],\"InterfaceExtends\":[\"id\",\"typeParameters\"],\"InterfaceDeclaration\":[\"id\",\"typeParameters\",\"extends\",\"body\"],\"IntersectionTypeAnnotation\":[\"types\"],\"MixedTypeAnnotation\":[],\"EmptyTypeAnnotation\":[],\"NullableTypeAnnotation\":[\"typeAnnotation\"],\"NumberLiteralTypeAnnotation\":[],\"NumberTypeAnnotation\":[],\"ObjectTypeAnnotation\":[\"properties\",\"indexers\",\"callProperties\"],\"ObjectTypeCallProperty\":[\"value\"],\"ObjectTypeIndexer\":[\"id\",\"key\",\"value\"],\"ObjectTypeProperty\":[\"key\",\"value\"],\"ObjectTypeSpreadProperty\":[\"argument\"],\"OpaqueType\":[\"id\",\"typeParameters\",\"supertype\",\"impltype\"],\"QualifiedTypeIdentifier\":[\"id\",\"qualification\"],\"StringLiteralTypeAnnotation\":[],\"StringTypeAnnotation\":[],\"ThisTypeAnnotation\":[],\"TupleTypeAnnotation\":[\"types\"],\"TypeofTypeAnnotation\":[\"argument\"],\"TypeAlias\":[\"id\",\"typeParameters\",\"right\"],\"TypeAnnotation\":[\"typeAnnotation\"],\"TypeCastExpression\":[\"expression\",\"typeAnnotation\"],\"TypeParameter\":[\"bound\",\"default\"],\"TypeParameterDeclaration\":[\"params\"],\"TypeParameterInstantiation\":[\"params\"],\"UnionTypeAnnotation\":[\"types\"],\"VoidTypeAnnotation\":[],\"JSXAttribute\":[\"name\",\"value\"],\"JSXClosingElement\":[\"name\"],\"JSXElement\":[\"openingElement\",\"children\",\"closingElement\"],\"JSXEmptyExpression\":[],\"JSXExpressionContainer\":[\"expression\"],\"JSXSpreadChild\":[\"expression\"],\"JSXIdentifier\":[],\"JSXMemberExpression\":[\"object\",\"property\"],\"JSXNamespacedName\":[\"namespace\",\"name\"],\"JSXOpeningElement\":[\"name\",\"attributes\"],\"JSXSpreadAttribute\":[\"argument\"],\"JSXText\":[],\"JSXFragment\":[\"openingFragment\",\"children\",\"closingFragment\"],\"JSXOpeningFragment\":[],\"JSXClosingFragment\":[],\"Noop\":[],\"ParenthesizedExpression\":[\"expression\"],\"AwaitExpression\":[\"argument\"],\"BindExpression\":[\"object\",\"callee\"],\"ClassProperty\":[\"key\",\"value\",\"typeAnnotation\",\"decorators\"],\"Import\":[],\"Decorator\":[\"expression\"],\"DoExpression\":[\"body\"],\"ExportDefaultSpecifier\":[\"exported\"],\"ExportNamespaceSpecifier\":[\"exported\"],\"TSParameterProperty\":[\"parameter\"],\"TSDeclareFunction\":[\"id\",\"typeParameters\",\"params\",\"returnType\"],\"TSDeclareMethod\":[\"decorators\",\"key\",\"typeParameters\",\"params\",\"returnType\"],\"TSQualifiedName\":[\"left\",\"right\"],\"TSCallSignatureDeclaration\":[\"typeParameters\",\"parameters\",\"typeAnnotation\"],\"TSConstructSignatureDeclaration\":[\"typeParameters\",\"parameters\",\"typeAnnotation\"],\"TSPropertySignature\":[\"key\",\"typeAnnotation\",\"initializer\"],\"TSMethodSignature\":[\"key\",\"typeParameters\",\"parameters\",\"typeAnnotation\"],\"TSIndexSignature\":[\"parameters\",\"typeAnnotation\"],\"TSAnyKeyword\":[],\"TSNumberKeyword\":[],\"TSObjectKeyword\":[],\"TSBooleanKeyword\":[],\"TSStringKeyword\":[],\"TSSymbolKeyword\":[],\"TSVoidKeyword\":[],\"TSUndefinedKeyword\":[],\"TSNullKeyword\":[],\"TSNeverKeyword\":[],\"TSThisType\":[],\"TSFunctionType\":[\"typeParameters\",\"typeAnnotation\"],\"TSConstructorType\":[\"typeParameters\",\"typeAnnotation\"],\"TSTypeReference\":[\"typeName\",\"typeParameters\"],\"TSTypePredicate\":[\"parameterName\",\"typeAnnotation\"],\"TSTypeQuery\":[\"exprName\"],\"TSTypeLiteral\":[\"members\"],\"TSArrayType\":[\"elementType\"],\"TSTupleType\":[\"elementTypes\"],\"TSUnionType\":[\"types\"],\"TSIntersectionType\":[\"types\"],\"TSParenthesizedType\":[\"typeAnnotation\"],\"TSTypeOperator\":[\"typeAnnotation\"],\"TSIndexedAccessType\":[\"objectType\",\"indexType\"],\"TSMappedType\":[\"typeParameter\",\"typeAnnotation\"],\"TSLiteralType\":[\"literal\"],\"TSExpressionWithTypeArguments\":[\"expression\",\"typeParameters\"],\"TSInterfaceDeclaration\":[\"id\",\"typeParameters\",\"extends\",\"body\"],\"TSInterfaceBody\":[\"body\"],\"TSTypeAliasDeclaration\":[\"id\",\"typeParameters\",\"typeAnnotation\"],\"TSAsExpression\":[\"expression\",\"typeAnnotation\"],\"TSTypeAssertion\":[\"typeAnnotation\",\"expression\"],\"TSEnumDeclaration\":[\"id\",\"members\"],\"TSEnumMember\":[\"id\",\"initializer\"],\"TSModuleDeclaration\":[\"id\",\"body\"],\"TSModuleBlock\":[\"body\"],\"TSImportEqualsDeclaration\":[\"id\",\"moduleReference\"],\"TSExternalModuleReference\":[\"expression\"],\"TSNonNullExpression\":[\"expression\"],\"TSExportAssignment\":[\"expression\"],\"TSNamespaceExportDeclaration\":[\"id\"],\"TSTypeAnnotation\":[\"typeAnnotation\"],\"TSTypeParameterInstantiation\":[\"params\"],\"TSTypeParameterDeclaration\":[\"params\"],\"TSTypeParameter\":[\"constraint\",\"default\"]}",
     _powerAssertRecorder = function () { function PowerAssertRecorder() { this.captured = []; } PowerAssertRecorder.prototype._capt = function _capt(value, espath) { this.captured.push({ value: value, espath: espath }); return value; }; PowerAssertRecorder.prototype._expr = function _expr(value, source) { var capturedValues = this.captured; this.captured = []; return { powerAssertContext: { value: value, events: capturedValues }, source: source }; }; return PowerAssertRecorder; }(),
     _rec = new _powerAssertRecorder(),
     _rec2 = new _powerAssertRecorder(),
     _rec3 = new _powerAssertRecorder();
 
-var _templateObject = _taggedTemplateLiteral(['a', ''], ['a', '']),
-    _templateObject2 = _taggedTemplateLiteral(['a', 'b', 'c', ''], ['a', 'b', 'c', '']),
-    _templateObject3 = _taggedTemplateLiteral(['driver ', ', navigator ', ''], ['driver ', ', navigator ', '']);
+var _templateObject = /*#__PURE__*/ _taggedTemplateLiteral(["a", ""], ["a", ""]),
+    _templateObject2 = /*#__PURE__*/ _taggedTemplateLiteral(["a", "b", "c", ""], ["a", "b", "c", ""]),
+    _templateObject3 = /*#__PURE__*/ _taggedTemplateLiteral(["driver ", ", navigator ", ""], ["driver ", ", navigator ", ""]);
 
 function _taggedTemplateLiteral(strings, raw) { return Object.freeze(Object.defineProperties(strings, { raw: { value: Object.freeze(raw) } })); }
 
-assert(_rec._expr(_rec._capt(fn(_templateObject, 1), 'arguments/0'), {
-  content: 'assert(fn`a${1}`)',
-  filepath: 'test/fixtures/TaggedTemplateExpression/fixture.js',
+assert(_rec._expr(_rec._capt(fn(_templateObject, 1), "arguments/0"), {
+  content: "assert(fn`a${1}`)",
+  filepath: "test/fixtures/TaggedTemplateExpression/fixture.js",
   line: 3,
-  ast: '{"type":"CallExpression","callee":{"type":"Identifier","name":"assert","range":[0,6]},"arguments":[{"type":"TaggedTemplateExpression","tag":{"type":"Identifier","name":"fn","range":[7,9]},"quasi":{"type":"TemplateLiteral","quasis":[{"type":"TemplateElement","value":{"raw":"a","cooked":"a"},"tail":false,"range":[10,11]},{"type":"TemplateElement","value":{"raw":"","cooked":""},"tail":true,"range":[15,15]}],"expressions":[{"type":"NumericLiteral","value":1,"range":[13,14]}],"range":[9,16]},"range":[7,16]}],"range":[0,17]}',
-  tokens: '[{"type":{"label":"name"},"value":"assert","range":[0,6]},{"type":{"label":"("},"range":[6,7]},{"type":{"label":"name"},"value":"fn","range":[7,9]},{"type":{"label":"`"},"range":[9,10]},{"type":{"label":"template"},"value":"a","range":[10,11]},{"type":{"label":"${"},"range":[11,13]},{"type":{"label":"num"},"value":1,"range":[13,14]},{"type":{"label":"}"},"range":[14,15]},{"type":{"label":"template"},"value":"","range":[15,15]},{"type":{"label":"`"},"range":[15,16]},{"type":{"label":")"},"range":[16,17]}]',
+  ast: "{\"type\":\"CallExpression\",\"callee\":{\"type\":\"Identifier\",\"name\":\"assert\",\"range\":[0,6]},\"arguments\":[{\"type\":\"TaggedTemplateExpression\",\"tag\":{\"type\":\"Identifier\",\"name\":\"fn\",\"range\":[7,9]},\"quasi\":{\"type\":\"TemplateLiteral\",\"quasis\":[{\"type\":\"TemplateElement\",\"value\":{\"raw\":\"a\",\"cooked\":\"a\"},\"tail\":false,\"range\":[10,11]},{\"type\":\"TemplateElement\",\"value\":{\"raw\":\"\",\"cooked\":\"\"},\"tail\":true,\"range\":[15,15]}],\"expressions\":[{\"type\":\"NumericLiteral\",\"value\":1,\"range\":[13,14]}],\"range\":[9,16]},\"range\":[7,16]}],\"range\":[0,17]}",
+  tokens: "[{\"type\":{\"label\":\"name\"},\"value\":\"assert\",\"range\":[0,6]},{\"type\":{\"label\":\"(\"},\"range\":[6,7]},{\"type\":{\"label\":\"name\"},\"value\":\"fn\",\"range\":[7,9]},{\"type\":{\"label\":\"`\"},\"range\":[9,10]},{\"type\":{\"label\":\"template\"},\"value\":\"a\",\"range\":[10,11]},{\"type\":{\"label\":\"${\"},\"range\":[11,13]},{\"type\":{\"label\":\"num\"},\"value\":1,\"range\":[13,14]},{\"type\":{\"label\":\"}\"},\"range\":[14,15]},{\"type\":{\"label\":\"template\"},\"value\":\"\",\"range\":[15,15]},{\"type\":{\"label\":\"`\"},\"range\":[15,16]},{\"type\":{\"label\":\")\"},\"range\":[16,17]}]",
   visitorKeys: _powerAssertVisitorKeys
 }));
-
-assert(_rec2._expr(_rec2._capt(fn(_templateObject2, _rec2._capt(foo, 'arguments/0/quasi/expressions/0'), _rec2._capt(bar, 'arguments/0/quasi/expressions/1'), _rec2._capt(baz, 'arguments/0/quasi/expressions/2')), 'arguments/0'), {
-  content: 'assert(fn`a${foo}b${bar}c${baz}`)',
-  filepath: 'test/fixtures/TaggedTemplateExpression/fixture.js',
+assert(_rec2._expr(_rec2._capt(fn(_templateObject2, _rec2._capt(foo, "arguments/0/quasi/expressions/0"), _rec2._capt(bar, "arguments/0/quasi/expressions/1"), _rec2._capt(baz, "arguments/0/quasi/expressions/2")), "arguments/0"), {
+  content: "assert(fn`a${foo}b${bar}c${baz}`)",
+  filepath: "test/fixtures/TaggedTemplateExpression/fixture.js",
   line: 5,
-  ast: '{"type":"CallExpression","callee":{"type":"Identifier","name":"assert","range":[0,6]},"arguments":[{"type":"TaggedTemplateExpression","tag":{"type":"Identifier","name":"fn","range":[7,9]},"quasi":{"type":"TemplateLiteral","quasis":[{"type":"TemplateElement","value":{"raw":"a","cooked":"a"},"tail":false,"range":[10,11]},{"type":"TemplateElement","value":{"raw":"b","cooked":"b"},"tail":false,"range":[17,18]},{"type":"TemplateElement","value":{"raw":"c","cooked":"c"},"tail":false,"range":[24,25]},{"type":"TemplateElement","value":{"raw":"","cooked":""},"tail":true,"range":[31,31]}],"expressions":[{"type":"Identifier","name":"foo","range":[13,16]},{"type":"Identifier","name":"bar","range":[20,23]},{"type":"Identifier","name":"baz","range":[27,30]}],"range":[9,32]},"range":[7,32]}],"range":[0,33]}',
-  tokens: '[{"type":{"label":"name"},"value":"assert","range":[0,6]},{"type":{"label":"("},"range":[6,7]},{"type":{"label":"name"},"value":"fn","range":[7,9]},{"type":{"label":"`"},"range":[9,10]},{"type":{"label":"template"},"value":"a","range":[10,11]},{"type":{"label":"${"},"range":[11,13]},{"type":{"label":"name"},"value":"foo","range":[13,16]},{"type":{"label":"}"},"range":[16,17]},{"type":{"label":"template"},"value":"b","range":[17,18]},{"type":{"label":"${"},"range":[18,20]},{"type":{"label":"name"},"value":"bar","range":[20,23]},{"type":{"label":"}"},"range":[23,24]},{"type":{"label":"template"},"value":"c","range":[24,25]},{"type":{"label":"${"},"range":[25,27]},{"type":{"label":"name"},"value":"baz","range":[27,30]},{"type":{"label":"}"},"range":[30,31]},{"type":{"label":"template"},"value":"","range":[31,31]},{"type":{"label":"`"},"range":[31,32]},{"type":{"label":")"},"range":[32,33]}]',
+  ast: "{\"type\":\"CallExpression\",\"callee\":{\"type\":\"Identifier\",\"name\":\"assert\",\"range\":[0,6]},\"arguments\":[{\"type\":\"TaggedTemplateExpression\",\"tag\":{\"type\":\"Identifier\",\"name\":\"fn\",\"range\":[7,9]},\"quasi\":{\"type\":\"TemplateLiteral\",\"quasis\":[{\"type\":\"TemplateElement\",\"value\":{\"raw\":\"a\",\"cooked\":\"a\"},\"tail\":false,\"range\":[10,11]},{\"type\":\"TemplateElement\",\"value\":{\"raw\":\"b\",\"cooked\":\"b\"},\"tail\":false,\"range\":[17,18]},{\"type\":\"TemplateElement\",\"value\":{\"raw\":\"c\",\"cooked\":\"c\"},\"tail\":false,\"range\":[24,25]},{\"type\":\"TemplateElement\",\"value\":{\"raw\":\"\",\"cooked\":\"\"},\"tail\":true,\"range\":[31,31]}],\"expressions\":[{\"type\":\"Identifier\",\"name\":\"foo\",\"range\":[13,16]},{\"type\":\"Identifier\",\"name\":\"bar\",\"range\":[20,23]},{\"type\":\"Identifier\",\"name\":\"baz\",\"range\":[27,30]}],\"range\":[9,32]},\"range\":[7,32]}],\"range\":[0,33]}",
+  tokens: "[{\"type\":{\"label\":\"name\"},\"value\":\"assert\",\"range\":[0,6]},{\"type\":{\"label\":\"(\"},\"range\":[6,7]},{\"type\":{\"label\":\"name\"},\"value\":\"fn\",\"range\":[7,9]},{\"type\":{\"label\":\"`\"},\"range\":[9,10]},{\"type\":{\"label\":\"template\"},\"value\":\"a\",\"range\":[10,11]},{\"type\":{\"label\":\"${\"},\"range\":[11,13]},{\"type\":{\"label\":\"name\"},\"value\":\"foo\",\"range\":[13,16]},{\"type\":{\"label\":\"}\"},\"range\":[16,17]},{\"type\":{\"label\":\"template\"},\"value\":\"b\",\"range\":[17,18]},{\"type\":{\"label\":\"${\"},\"range\":[18,20]},{\"type\":{\"label\":\"name\"},\"value\":\"bar\",\"range\":[20,23]},{\"type\":{\"label\":\"}\"},\"range\":[23,24]},{\"type\":{\"label\":\"template\"},\"value\":\"c\",\"range\":[24,25]},{\"type\":{\"label\":\"${\"},\"range\":[25,27]},{\"type\":{\"label\":\"name\"},\"value\":\"baz\",\"range\":[27,30]},{\"type\":{\"label\":\"}\"},\"range\":[30,31]},{\"type\":{\"label\":\"template\"},\"value\":\"\",\"range\":[31,31]},{\"type\":{\"label\":\"`\"},\"range\":[31,32]},{\"type\":{\"label\":\")\"},\"range\":[32,33]}]",
   visitorKeys: _powerAssertVisitorKeys
 }));
-
-assert(_rec3._expr(_rec3._capt(fn(_templateObject3, _rec3._capt(_rec3._capt(bob, 'arguments/0/quasi/expressions/0/object').name, 'arguments/0/quasi/expressions/0'), _rec3._capt(_rec3._capt(alice, 'arguments/0/quasi/expressions/1/callee/object').getName(), 'arguments/0/quasi/expressions/1')), 'arguments/0'), {
-  content: 'assert(fn`driver ${bob.name}, navigator ${alice.getName()}`)',
-  filepath: 'test/fixtures/TaggedTemplateExpression/fixture.js',
+assert(_rec3._expr(_rec3._capt(fn(_templateObject3, _rec3._capt(_rec3._capt(bob, "arguments/0/quasi/expressions/0/object").name, "arguments/0/quasi/expressions/0"), _rec3._capt(_rec3._capt(alice, "arguments/0/quasi/expressions/1/callee/object").getName(), "arguments/0/quasi/expressions/1")), "arguments/0"), {
+  content: "assert(fn`driver ${bob.name}, navigator ${alice.getName()}`)",
+  filepath: "test/fixtures/TaggedTemplateExpression/fixture.js",
   line: 7,
-  ast: '{"type":"CallExpression","callee":{"type":"Identifier","name":"assert","range":[0,6]},"arguments":[{"type":"TaggedTemplateExpression","tag":{"type":"Identifier","name":"fn","range":[7,9]},"quasi":{"type":"TemplateLiteral","quasis":[{"type":"TemplateElement","value":{"raw":"driver ","cooked":"driver "},"tail":false,"range":[10,17]},{"type":"TemplateElement","value":{"raw":", navigator ","cooked":", navigator "},"tail":false,"range":[28,40]},{"type":"TemplateElement","value":{"raw":"","cooked":""},"tail":true,"range":[58,58]}],"expressions":[{"type":"MemberExpression","object":{"type":"Identifier","name":"bob","range":[19,22]},"property":{"type":"Identifier","name":"name","range":[23,27]},"computed":false,"range":[19,27]},{"type":"CallExpression","callee":{"type":"MemberExpression","object":{"type":"Identifier","name":"alice","range":[42,47]},"property":{"type":"Identifier","name":"getName","range":[48,55]},"computed":false,"range":[42,55]},"arguments":[],"range":[42,57]}],"range":[9,59]},"range":[7,59]}],"range":[0,60]}',
-  tokens: '[{"type":{"label":"name"},"value":"assert","range":[0,6]},{"type":{"label":"("},"range":[6,7]},{"type":{"label":"name"},"value":"fn","range":[7,9]},{"type":{"label":"`"},"range":[9,10]},{"type":{"label":"template"},"value":"driver ","range":[10,17]},{"type":{"label":"${"},"range":[17,19]},{"type":{"label":"name"},"value":"bob","range":[19,22]},{"type":{"label":"."},"range":[22,23]},{"type":{"label":"name"},"value":"name","range":[23,27]},{"type":{"label":"}"},"range":[27,28]},{"type":{"label":"template"},"value":", navigator ","range":[28,40]},{"type":{"label":"${"},"range":[40,42]},{"type":{"label":"name"},"value":"alice","range":[42,47]},{"type":{"label":"."},"range":[47,48]},{"type":{"label":"name"},"value":"getName","range":[48,55]},{"type":{"label":"("},"range":[55,56]},{"type":{"label":")"},"range":[56,57]},{"type":{"label":"}"},"range":[57,58]},{"type":{"label":"template"},"value":"","range":[58,58]},{"type":{"label":"`"},"range":[58,59]},{"type":{"label":")"},"range":[59,60]}]',
+  ast: "{\"type\":\"CallExpression\",\"callee\":{\"type\":\"Identifier\",\"name\":\"assert\",\"range\":[0,6]},\"arguments\":[{\"type\":\"TaggedTemplateExpression\",\"tag\":{\"type\":\"Identifier\",\"name\":\"fn\",\"range\":[7,9]},\"quasi\":{\"type\":\"TemplateLiteral\",\"quasis\":[{\"type\":\"TemplateElement\",\"value\":{\"raw\":\"driver \",\"cooked\":\"driver \"},\"tail\":false,\"range\":[10,17]},{\"type\":\"TemplateElement\",\"value\":{\"raw\":\", navigator \",\"cooked\":\", navigator \"},\"tail\":false,\"range\":[28,40]},{\"type\":\"TemplateElement\",\"value\":{\"raw\":\"\",\"cooked\":\"\"},\"tail\":true,\"range\":[58,58]}],\"expressions\":[{\"type\":\"MemberExpression\",\"object\":{\"type\":\"Identifier\",\"name\":\"bob\",\"range\":[19,22]},\"property\":{\"type\":\"Identifier\",\"name\":\"name\",\"range\":[23,27]},\"computed\":false,\"range\":[19,27]},{\"type\":\"CallExpression\",\"callee\":{\"type\":\"MemberExpression\",\"object\":{\"type\":\"Identifier\",\"name\":\"alice\",\"range\":[42,47]},\"property\":{\"type\":\"Identifier\",\"name\":\"getName\",\"range\":[48,55]},\"computed\":false,\"range\":[42,55]},\"arguments\":[],\"range\":[42,57]}],\"range\":[9,59]},\"range\":[7,59]}],\"range\":[0,60]}",
+  tokens: "[{\"type\":{\"label\":\"name\"},\"value\":\"assert\",\"range\":[0,6]},{\"type\":{\"label\":\"(\"},\"range\":[6,7]},{\"type\":{\"label\":\"name\"},\"value\":\"fn\",\"range\":[7,9]},{\"type\":{\"label\":\"`\"},\"range\":[9,10]},{\"type\":{\"label\":\"template\"},\"value\":\"driver \",\"range\":[10,17]},{\"type\":{\"label\":\"${\"},\"range\":[17,19]},{\"type\":{\"label\":\"name\"},\"value\":\"bob\",\"range\":[19,22]},{\"type\":{\"label\":\".\"},\"range\":[22,23]},{\"type\":{\"label\":\"name\"},\"value\":\"name\",\"range\":[23,27]},{\"type\":{\"label\":\"}\"},\"range\":[27,28]},{\"type\":{\"label\":\"template\"},\"value\":\", navigator \",\"range\":[28,40]},{\"type\":{\"label\":\"${\"},\"range\":[40,42]},{\"type\":{\"label\":\"name\"},\"value\":\"alice\",\"range\":[42,47]},{\"type\":{\"label\":\".\"},\"range\":[47,48]},{\"type\":{\"label\":\"name\"},\"value\":\"getName\",\"range\":[48,55]},{\"type\":{\"label\":\"(\"},\"range\":[55,56]},{\"type\":{\"label\":\")\"},\"range\":[56,57]},{\"type\":{\"label\":\"}\"},\"range\":[57,58]},{\"type\":{\"label\":\"template\"},\"value\":\"\",\"range\":[58,58]},{\"type\":{\"label\":\"`\"},\"range\":[58,59]},{\"type\":{\"label\":\")\"},\"range\":[59,60]}]",
   visitorKeys: _powerAssertVisitorKeys
 }));
diff --git a/test/fixtures/TaggedTemplateExpression/expected.js b/test/fixtures/TaggedTemplateExpression/expected.js
index d64c6d9..1b0bfa9 100644
--- a/test/fixtures/TaggedTemplateExpression/expected.js
+++ b/test/fixtures/TaggedTemplateExpression/expected.js
@@ -5,20 +5,18 @@ var _powerAssertRecorder = function () { function PowerAssertRecorder() { this.c
     _rec2 = new _powerAssertRecorder(),
     _rec3 = new _powerAssertRecorder();
 
-assert(_rec._expr(_rec._capt(fn`a${1}`, 'arguments/0'), {
-  content: 'assert(fn`a${1}`)',
-  filepath: 'test/fixtures/TaggedTemplateExpression/fixture.js',
+assert(_rec._expr(_rec._capt(fn`a${1}`, "arguments/0"), {
+  content: "assert(fn`a${1}`)",
+  filepath: "test/fixtures/TaggedTemplateExpression/fixture.js",
   line: 3
 }));
-
-assert(_rec2._expr(_rec2._capt(fn`a${_rec2._capt(foo, 'arguments/0/quasi/expressions/0')}b${_rec2._capt(bar, 'arguments/0/quasi/expressions/1')}c${_rec2._capt(baz, 'arguments/0/quasi/expressions/2')}`, 'arguments/0'), {
-  content: 'assert(fn`a${foo}b${bar}c${baz}`)',
-  filepath: 'test/fixtures/TaggedTemplateExpression/fixture.js',
+assert(_rec2._expr(_rec2._capt(fn`a${_rec2._capt(foo, "arguments/0/quasi/expressions/0")}b${_rec2._capt(bar, "arguments/0/quasi/expressions/1")}c${_rec2._capt(baz, "arguments/0/quasi/expressions/2")}`, "arguments/0"), {
+  content: "assert(fn`a${foo}b${bar}c${baz}`)",
+  filepath: "test/fixtures/TaggedTemplateExpression/fixture.js",
   line: 5
 }));
-
-assert(_rec3._expr(_rec3._capt(fn`driver ${_rec3._capt(_rec3._capt(bob, 'arguments/0/quasi/expressions/0/object').name, 'arguments/0/quasi/expressions/0')}, navigator ${_rec3._capt(_rec3._capt(alice, 'arguments/0/quasi/expressions/1/callee/object').getName(), 'arguments/0/quasi/expressions/1')}`, 'arguments/0'), {
-  content: 'assert(fn`driver ${bob.name}, navigator ${alice.getName()}`)',
-  filepath: 'test/fixtures/TaggedTemplateExpression/fixture.js',
+assert(_rec3._expr(_rec3._capt(fn`driver ${_rec3._capt(_rec3._capt(bob, "arguments/0/quasi/expressions/0/object").name, "arguments/0/quasi/expressions/0")}, navigator ${_rec3._capt(_rec3._capt(alice, "arguments/0/quasi/expressions/1/callee/object").getName(), "arguments/0/quasi/expressions/1")}`, "arguments/0"), {
+  content: "assert(fn`driver ${bob.name}, navigator ${alice.getName()}`)",
+  filepath: "test/fixtures/TaggedTemplateExpression/fixture.js",
   line: 7
 }));
diff --git a/test/fixtures/TemplateLiteral/expected-presets-es2015.js b/test/fixtures/TemplateLiteral/expected-presets-es2015.js
index c2f496d..5611ee2 100644
--- a/test/fixtures/TemplateLiteral/expected-presets-es2015.js
+++ b/test/fixtures/TemplateLiteral/expected-presets-es2015.js
@@ -1,34 +1,32 @@
 'use strict';
 
-var _powerAssertVisitorKeys = '{"ArrayExpression":["elements"],"AssignmentExpression":["left","right"],"BinaryExpression":["left","right"],"Directive":["value"],"DirectiveLiteral":[],"BlockStatement":["directives","body"],"BreakStatement":["label"],"CallExpression":["callee","arguments"],"CatchClause":["param","body"],"ConditionalExpression":["test","consequent","alternate"],"ContinueStatement":["label"],"DebuggerStatement":[],"DoWhileStatement":["test","body"],"EmptyStatement":[],"ExpressionStatement":["expression"],"File":["program"],"ForInStatement":["left","right","body"],"ForStatement":["init","test","update","body"],"FunctionDeclaration":["id","params","body","returnType","typeParameters"],"FunctionExpression":["id","params","body","returnType","typeParameters"],"Identifier":["typeAnnotation"],"IfStatement":["test","consequent","alternate"],"LabeledStatement":["label","body"],"StringLiteral":[],"NumericLiteral":[],"NullLiteral":[],"BooleanLiteral":[],"RegExpLiteral":[],"LogicalExpression":["left","right"],"MemberExpression":["object","property"],"NewExpression":["callee","arguments"],"Program":["directives","body"],"ObjectExpression":["properties"],"ObjectMethod":["key","params","body","decorators","returnType","typeParameters"],"ObjectProperty":["key","value","decorators"],"RestElement":["argument","typeAnnotation"],"ReturnStatement":["argument"],"SequenceExpression":["expressions"],"SwitchCase":["test","consequent"],"SwitchStatement":["discriminant","cases"],"ThisExpression":[],"ThrowStatement":["argument"],"TryStatement":["block","handler","finalizer"],"UnaryExpression":["argument"],"UpdateExpression":["argument"],"VariableDeclaration":["declarations"],"VariableDeclarator":["id","init"],"WhileStatement":["test","body"],"WithStatement":["object","body"],"AssignmentPattern":["left","right"],"ArrayPattern":["elements","typeAnnotation"],"ArrowFunctionExpression":["params","body","returnType","typeParameters"],"ClassBody":["body"],"ClassDeclaration":["id","body","superClass","mixins","typeParameters","superTypeParameters","implements","decorators"],"ClassExpression":["id","body","superClass","mixins","typeParameters","superTypeParameters","implements","decorators"],"ExportAllDeclaration":["source"],"ExportDefaultDeclaration":["declaration"],"ExportNamedDeclaration":["declaration","specifiers","source"],"ExportSpecifier":["local","exported"],"ForOfStatement":["left","right","body"],"ImportDeclaration":["specifiers","source"],"ImportDefaultSpecifier":["local"],"ImportNamespaceSpecifier":["local"],"ImportSpecifier":["local","imported"],"MetaProperty":["meta","property"],"ClassMethod":["key","params","body","decorators","returnType","typeParameters"],"ObjectPattern":["properties","typeAnnotation"],"SpreadElement":["argument"],"Super":[],"TaggedTemplateExpression":["tag","quasi"],"TemplateElement":[],"TemplateLiteral":["quasis","expressions"],"YieldExpression":["argument"],"AnyTypeAnnotation":[],"ArrayTypeAnnotation":["elementType"],"BooleanTypeAnnotation":[],"BooleanLiteralTypeAnnotation":[],"NullLiteralTypeAnnotation":[],"ClassImplements":["id","typeParameters"],"ClassProperty":["key","value","typeAnnotation","decorators"],"DeclareClass":["id","typeParameters","extends","body"],"DeclareFunction":["id"],"DeclareInterface":["id","typeParameters","extends","body"],"DeclareModule":["id","body"],"DeclareModuleExports":["typeAnnotation"],"DeclareTypeAlias":["id","typeParameters","right"],"DeclareOpaqueType":["id","typeParameters","supertype"],"DeclareVariable":["id"],"DeclareExportDeclaration":["declaration","specifiers","source"],"ExistentialTypeParam":[],"FunctionTypeAnnotation":["typeParameters","params","rest","returnType"],"FunctionTypeParam":["name","typeAnnotation"],"GenericTypeAnnotation":["id","typeParameters"],"InterfaceExtends":["id","typeParameters"],"InterfaceDeclaration":["id","typeParameters","extends","body"],"IntersectionTypeAnnotation":["types"],"MixedTypeAnnotation":[],"EmptyTypeAnnotation":[],"NullableTypeAnnotation":["typeAnnotation"],"NumericLiteralTypeAnnotation":[],"NumberTypeAnnotation":[],"StringLiteralTypeAnnotation":[],"StringTypeAnnotation":[],"ThisTypeAnnotation":[],"TupleTypeAnnotation":["types"],"TypeofTypeAnnotation":["argument"],"TypeAlias":["id","typeParameters","right"],"OpaqueType":["id","typeParameters","impltype","supertype"],"TypeAnnotation":["typeAnnotation"],"TypeCastExpression":["expression","typeAnnotation"],"TypeParameter":["bound"],"TypeParameterDeclaration":["params"],"TypeParameterInstantiation":["params"],"ObjectTypeAnnotation":["properties","indexers","callProperties"],"ObjectTypeCallProperty":["value"],"ObjectTypeIndexer":["id","key","value"],"ObjectTypeProperty":["key","value"],"ObjectTypeSpreadProperty":["argument"],"QualifiedTypeIdentifier":["id","qualification"],"UnionTypeAnnotation":["types"],"VoidTypeAnnotation":[],"JSXAttribute":["name","value"],"JSXClosingElement":["name"],"JSXElement":["openingElement","children","closingElement"],"JSXEmptyExpression":[],"JSXExpressionContainer":["expression"],"JSXSpreadChild":["expression"],"JSXIdentifier":[],"JSXMemberExpression":["object","property"],"JSXNamespacedName":["namespace","name"],"JSXOpeningElement":["name","attributes"],"JSXSpreadAttribute":["argument"],"JSXText":[],"Noop":[],"ParenthesizedExpression":["expression"],"AwaitExpression":["argument"],"ForAwaitStatement":["left","right","body"],"BindExpression":["object","callee"],"Import":[],"Decorator":["expression"],"DoExpression":["body"],"ExportDefaultSpecifier":["exported"],"ExportNamespaceSpecifier":["exported"],"RestProperty":["argument"],"SpreadProperty":["argument"]}',
+var _powerAssertVisitorKeys = "{\"ArrayExpression\":[\"elements\"],\"AssignmentExpression\":[\"left\",\"right\"],\"BinaryExpression\":[\"left\",\"right\"],\"Directive\":[\"value\"],\"DirectiveLiteral\":[],\"BlockStatement\":[\"directives\",\"body\"],\"BreakStatement\":[\"label\"],\"CallExpression\":[\"callee\",\"arguments\",\"typeParameters\"],\"CatchClause\":[\"param\",\"body\"],\"ConditionalExpression\":[\"test\",\"consequent\",\"alternate\"],\"ContinueStatement\":[\"label\"],\"DebuggerStatement\":[],\"DoWhileStatement\":[\"test\",\"body\"],\"EmptyStatement\":[],\"ExpressionStatement\":[\"expression\"],\"File\":[\"program\"],\"ForInStatement\":[\"left\",\"right\",\"body\"],\"ForStatement\":[\"init\",\"test\",\"update\",\"body\"],\"FunctionDeclaration\":[\"id\",\"params\",\"body\",\"returnType\",\"typeParameters\"],\"FunctionExpression\":[\"id\",\"params\",\"body\",\"returnType\",\"typeParameters\"],\"Identifier\":[\"typeAnnotation\"],\"IfStatement\":[\"test\",\"consequent\",\"alternate\"],\"LabeledStatement\":[\"label\",\"body\"],\"StringLiteral\":[],\"NumericLiteral\":[],\"NullLiteral\":[],\"BooleanLiteral\":[],\"RegExpLiteral\":[],\"LogicalExpression\":[\"left\",\"right\"],\"MemberExpression\":[\"object\",\"property\"],\"NewExpression\":[\"callee\",\"arguments\",\"typeParameters\"],\"Program\":[\"directives\",\"body\"],\"ObjectExpression\":[\"properties\"],\"ObjectMethod\":[\"key\",\"params\",\"body\",\"decorators\",\"returnType\",\"typeParameters\"],\"ObjectProperty\":[\"key\",\"value\",\"decorators\"],\"RestElement\":[\"argument\",\"typeAnnotation\"],\"ReturnStatement\":[\"argument\"],\"SequenceExpression\":[\"expressions\"],\"SwitchCase\":[\"test\",\"consequent\"],\"SwitchStatement\":[\"discriminant\",\"cases\"],\"ThisExpression\":[],\"ThrowStatement\":[\"argument\"],\"TryStatement\":[\"block\",\"handler\",\"finalizer\"],\"UnaryExpression\":[\"argument\"],\"UpdateExpression\":[\"argument\"],\"VariableDeclaration\":[\"declarations\"],\"VariableDeclarator\":[\"id\",\"init\"],\"WhileStatement\":[\"test\",\"body\"],\"WithStatement\":[\"object\",\"body\"],\"AssignmentPattern\":[\"left\",\"right\"],\"ArrayPattern\":[\"elements\",\"typeAnnotation\"],\"ArrowFunctionExpression\":[\"params\",\"body\",\"returnType\",\"typeParameters\"],\"ClassBody\":[\"body\"],\"ClassDeclaration\":[\"id\",\"body\",\"superClass\",\"mixins\",\"typeParameters\",\"superTypeParameters\",\"implements\",\"decorators\"],\"ClassExpression\":[\"id\",\"body\",\"superClass\",\"mixins\",\"typeParameters\",\"superTypeParameters\",\"implements\",\"decorators\"],\"ExportAllDeclaration\":[\"source\"],\"ExportDefaultDeclaration\":[\"declaration\"],\"ExportNamedDeclaration\":[\"declaration\",\"specifiers\",\"source\"],\"ExportSpecifier\":[\"local\",\"exported\"],\"ForOfStatement\":[\"left\",\"right\",\"body\"],\"ImportDeclaration\":[\"specifiers\",\"source\"],\"ImportDefaultSpecifier\":[\"local\"],\"ImportNamespaceSpecifier\":[\"local\"],\"ImportSpecifier\":[\"local\",\"imported\"],\"MetaProperty\":[\"meta\",\"property\"],\"ClassMethod\":[\"key\",\"params\",\"body\",\"decorators\",\"returnType\",\"typeParameters\"],\"ObjectPattern\":[\"properties\",\"typeAnnotation\"],\"SpreadElement\":[\"argument\"],\"Super\":[],\"TaggedTemplateExpression\":[\"tag\",\"quasi\"],\"TemplateElement\":[],\"TemplateLiteral\":[\"quasis\",\"expressions\"],\"YieldExpression\":[\"argument\"],\"AnyTypeAnnotation\":[],\"ArrayTypeAnnotation\":[\"elementType\"],\"BooleanTypeAnnotation\":[],\"BooleanLiteralTypeAnnotation\":[],\"NullLiteralTypeAnnotation\":[],\"ClassImplements\":[\"id\",\"typeParameters\"],\"DeclareClass\":[\"id\",\"typeParameters\",\"extends\",\"body\"],\"DeclareFunction\":[\"id\"],\"DeclareInterface\":[\"id\",\"typeParameters\",\"extends\",\"body\"],\"DeclareModule\":[\"id\",\"body\"],\"DeclareModuleExports\":[\"typeAnnotation\"],\"DeclareTypeAlias\":[\"id\",\"typeParameters\",\"right\"],\"DeclareOpaqueType\":[\"id\",\"typeParameters\",\"supertype\"],\"DeclareVariable\":[\"id\"],\"DeclareExportDeclaration\":[\"declaration\",\"specifiers\",\"source\"],\"DeclareExportAllDeclaration\":[\"source\"],\"DeclaredPredicate\":[\"value\"],\"ExistsTypeAnnotation\":[],\"FunctionTypeAnnotation\":[\"typeParameters\",\"params\",\"rest\",\"returnType\"],\"FunctionTypeParam\":[\"name\",\"typeAnnotation\"],\"GenericTypeAnnotation\":[\"id\",\"typeParameters\"],\"InferredPredicate\":[],\"InterfaceExtends\":[\"id\",\"typeParameters\"],\"InterfaceDeclaration\":[\"id\",\"typeParameters\",\"extends\",\"body\"],\"IntersectionTypeAnnotation\":[\"types\"],\"MixedTypeAnnotation\":[],\"EmptyTypeAnnotation\":[],\"NullableTypeAnnotation\":[\"typeAnnotation\"],\"NumberLiteralTypeAnnotation\":[],\"NumberTypeAnnotation\":[],\"ObjectTypeAnnotation\":[\"properties\",\"indexers\",\"callProperties\"],\"ObjectTypeCallProperty\":[\"value\"],\"ObjectTypeIndexer\":[\"id\",\"key\",\"value\"],\"ObjectTypeProperty\":[\"key\",\"value\"],\"ObjectTypeSpreadProperty\":[\"argument\"],\"OpaqueType\":[\"id\",\"typeParameters\",\"supertype\",\"impltype\"],\"QualifiedTypeIdentifier\":[\"id\",\"qualification\"],\"StringLiteralTypeAnnotation\":[],\"StringTypeAnnotation\":[],\"ThisTypeAnnotation\":[],\"TupleTypeAnnotation\":[\"types\"],\"TypeofTypeAnnotation\":[\"argument\"],\"TypeAlias\":[\"id\",\"typeParameters\",\"right\"],\"TypeAnnotation\":[\"typeAnnotation\"],\"TypeCastExpression\":[\"expression\",\"typeAnnotation\"],\"TypeParameter\":[\"bound\",\"default\"],\"TypeParameterDeclaration\":[\"params\"],\"TypeParameterInstantiation\":[\"params\"],\"UnionTypeAnnotation\":[\"types\"],\"VoidTypeAnnotation\":[],\"JSXAttribute\":[\"name\",\"value\"],\"JSXClosingElement\":[\"name\"],\"JSXElement\":[\"openingElement\",\"children\",\"closingElement\"],\"JSXEmptyExpression\":[],\"JSXExpressionContainer\":[\"expression\"],\"JSXSpreadChild\":[\"expression\"],\"JSXIdentifier\":[],\"JSXMemberExpression\":[\"object\",\"property\"],\"JSXNamespacedName\":[\"namespace\",\"name\"],\"JSXOpeningElement\":[\"name\",\"attributes\"],\"JSXSpreadAttribute\":[\"argument\"],\"JSXText\":[],\"JSXFragment\":[\"openingFragment\",\"children\",\"closingFragment\"],\"JSXOpeningFragment\":[],\"JSXClosingFragment\":[],\"Noop\":[],\"ParenthesizedExpression\":[\"expression\"],\"AwaitExpression\":[\"argument\"],\"BindExpression\":[\"object\",\"callee\"],\"ClassProperty\":[\"key\",\"value\",\"typeAnnotation\",\"decorators\"],\"Import\":[],\"Decorator\":[\"expression\"],\"DoExpression\":[\"body\"],\"ExportDefaultSpecifier\":[\"exported\"],\"ExportNamespaceSpecifier\":[\"exported\"],\"TSParameterProperty\":[\"parameter\"],\"TSDeclareFunction\":[\"id\",\"typeParameters\",\"params\",\"returnType\"],\"TSDeclareMethod\":[\"decorators\",\"key\",\"typeParameters\",\"params\",\"returnType\"],\"TSQualifiedName\":[\"left\",\"right\"],\"TSCallSignatureDeclaration\":[\"typeParameters\",\"parameters\",\"typeAnnotation\"],\"TSConstructSignatureDeclaration\":[\"typeParameters\",\"parameters\",\"typeAnnotation\"],\"TSPropertySignature\":[\"key\",\"typeAnnotation\",\"initializer\"],\"TSMethodSignature\":[\"key\",\"typeParameters\",\"parameters\",\"typeAnnotation\"],\"TSIndexSignature\":[\"parameters\",\"typeAnnotation\"],\"TSAnyKeyword\":[],\"TSNumberKeyword\":[],\"TSObjectKeyword\":[],\"TSBooleanKeyword\":[],\"TSStringKeyword\":[],\"TSSymbolKeyword\":[],\"TSVoidKeyword\":[],\"TSUndefinedKeyword\":[],\"TSNullKeyword\":[],\"TSNeverKeyword\":[],\"TSThisType\":[],\"TSFunctionType\":[\"typeParameters\",\"typeAnnotation\"],\"TSConstructorType\":[\"typeParameters\",\"typeAnnotation\"],\"TSTypeReference\":[\"typeName\",\"typeParameters\"],\"TSTypePredicate\":[\"parameterName\",\"typeAnnotation\"],\"TSTypeQuery\":[\"exprName\"],\"TSTypeLiteral\":[\"members\"],\"TSArrayType\":[\"elementType\"],\"TSTupleType\":[\"elementTypes\"],\"TSUnionType\":[\"types\"],\"TSIntersectionType\":[\"types\"],\"TSParenthesizedType\":[\"typeAnnotation\"],\"TSTypeOperator\":[\"typeAnnotation\"],\"TSIndexedAccessType\":[\"objectType\",\"indexType\"],\"TSMappedType\":[\"typeParameter\",\"typeAnnotation\"],\"TSLiteralType\":[\"literal\"],\"TSExpressionWithTypeArguments\":[\"expression\",\"typeParameters\"],\"TSInterfaceDeclaration\":[\"id\",\"typeParameters\",\"extends\",\"body\"],\"TSInterfaceBody\":[\"body\"],\"TSTypeAliasDeclaration\":[\"id\",\"typeParameters\",\"typeAnnotation\"],\"TSAsExpression\":[\"expression\",\"typeAnnotation\"],\"TSTypeAssertion\":[\"typeAnnotation\",\"expression\"],\"TSEnumDeclaration\":[\"id\",\"members\"],\"TSEnumMember\":[\"id\",\"initializer\"],\"TSModuleDeclaration\":[\"id\",\"body\"],\"TSModuleBlock\":[\"body\"],\"TSImportEqualsDeclaration\":[\"id\",\"moduleReference\"],\"TSExternalModuleReference\":[\"expression\"],\"TSNonNullExpression\":[\"expression\"],\"TSExportAssignment\":[\"expression\"],\"TSNamespaceExportDeclaration\":[\"id\"],\"TSTypeAnnotation\":[\"typeAnnotation\"],\"TSTypeParameterInstantiation\":[\"params\"],\"TSTypeParameterDeclaration\":[\"params\"],\"TSTypeParameter\":[\"constraint\",\"default\"]}",
     _powerAssertRecorder = function () { function PowerAssertRecorder() { this.captured = []; } PowerAssertRecorder.prototype._capt = function _capt(value, espath) { this.captured.push({ value: value, espath: espath }); return value; }; PowerAssertRecorder.prototype._expr = function _expr(value, source) { var capturedValues = this.captured; this.captured = []; return { powerAssertContext: { value: value, events: capturedValues }, source: source }; }; return PowerAssertRecorder; }(),
     _rec = new _powerAssertRecorder(),
     _rec2 = new _powerAssertRecorder(),
     _rec3 = new _powerAssertRecorder();
 
-assert(_rec._expr(_rec._capt('Hello', 'arguments/0'), {
-  content: 'assert(`Hello`)',
-  filepath: 'test/fixtures/TemplateLiteral/fixture.js',
+assert(_rec._expr(_rec._capt("Hello", "arguments/0"), {
+  content: "assert(`Hello`)",
+  filepath: "test/fixtures/TemplateLiteral/fixture.js",
   line: 3,
-  ast: '{"type":"CallExpression","callee":{"type":"Identifier","name":"assert","range":[0,6]},"arguments":[{"type":"TemplateLiteral","quasis":[{"type":"TemplateElement","value":{"raw":"Hello","cooked":"Hello"},"tail":true,"range":[8,13]}],"expressions":[],"range":[7,14]}],"range":[0,15]}',
-  tokens: '[{"type":{"label":"name"},"value":"assert","range":[0,6]},{"type":{"label":"("},"range":[6,7]},{"type":{"label":"`"},"range":[7,8]},{"type":{"label":"template"},"value":"Hello","range":[8,13]},{"type":{"label":"`"},"range":[13,14]},{"type":{"label":")"},"range":[14,15]}]',
+  ast: "{\"type\":\"CallExpression\",\"callee\":{\"type\":\"Identifier\",\"name\":\"assert\",\"range\":[0,6]},\"arguments\":[{\"type\":\"TemplateLiteral\",\"quasis\":[{\"type\":\"TemplateElement\",\"value\":{\"raw\":\"Hello\",\"cooked\":\"Hello\"},\"tail\":true,\"range\":[8,13]}],\"expressions\":[],\"range\":[7,14]}],\"range\":[0,15]}",
+  tokens: "[{\"type\":{\"label\":\"name\"},\"value\":\"assert\",\"range\":[0,6]},{\"type\":{\"label\":\"(\"},\"range\":[6,7]},{\"type\":{\"label\":\"`\"},\"range\":[7,8]},{\"type\":{\"label\":\"template\"},\"value\":\"Hello\",\"range\":[8,13]},{\"type\":{\"label\":\"`\"},\"range\":[13,14]},{\"type\":{\"label\":\")\"},\"range\":[14,15]}]",
   visitorKeys: _powerAssertVisitorKeys
 }));
-
-assert(_rec2._expr(_rec2._capt('Hello, ' + _rec2._capt(nickname, 'arguments/0/expressions/0'), 'arguments/0'), {
-  content: 'assert(`Hello, ${nickname}`)',
-  filepath: 'test/fixtures/TemplateLiteral/fixture.js',
+assert(_rec2._expr(_rec2._capt("Hello, ".concat(_rec2._capt(nickname, "arguments/0/expressions/0")), "arguments/0"), {
+  content: "assert(`Hello, ${nickname}`)",
+  filepath: "test/fixtures/TemplateLiteral/fixture.js",
   line: 5,
-  ast: '{"type":"CallExpression","callee":{"type":"Identifier","name":"assert","range":[0,6]},"arguments":[{"type":"TemplateLiteral","quasis":[{"type":"TemplateElement","value":{"raw":"Hello, ","cooked":"Hello, "},"tail":false,"range":[8,15]},{"type":"TemplateElement","value":{"raw":"","cooked":""},"tail":true,"range":[26,26]}],"expressions":[{"type":"Identifier","name":"nickname","range":[17,25]}],"range":[7,27]}],"range":[0,28]}',
-  tokens: '[{"type":{"label":"name"},"value":"assert","range":[0,6]},{"type":{"label":"("},"range":[6,7]},{"type":{"label":"`"},"range":[7,8]},{"type":{"label":"template"},"value":"Hello, ","range":[8,15]},{"type":{"label":"${"},"range":[15,17]},{"type":{"label":"name"},"value":"nickname","range":[17,25]},{"type":{"label":"}"},"range":[25,26]},{"type":{"label":"template"},"value":"","range":[26,26]},{"type":{"label":"`"},"range":[26,27]},{"type":{"label":")"},"range":[27,28]}]',
+  ast: "{\"type\":\"CallExpression\",\"callee\":{\"type\":\"Identifier\",\"name\":\"assert\",\"range\":[0,6]},\"arguments\":[{\"type\":\"TemplateLiteral\",\"quasis\":[{\"type\":\"TemplateElement\",\"value\":{\"raw\":\"Hello, \",\"cooked\":\"Hello, \"},\"tail\":false,\"range\":[8,15]},{\"type\":\"TemplateElement\",\"value\":{\"raw\":\"\",\"cooked\":\"\"},\"tail\":true,\"range\":[26,26]}],\"expressions\":[{\"type\":\"Identifier\",\"name\":\"nickname\",\"range\":[17,25]}],\"range\":[7,27]}],\"range\":[0,28]}",
+  tokens: "[{\"type\":{\"label\":\"name\"},\"value\":\"assert\",\"range\":[0,6]},{\"type\":{\"label\":\"(\"},\"range\":[6,7]},{\"type\":{\"label\":\"`\"},\"range\":[7,8]},{\"type\":{\"label\":\"template\"},\"value\":\"Hello, \",\"range\":[8,15]},{\"type\":{\"label\":\"${\"},\"range\":[15,17]},{\"type\":{\"label\":\"name\"},\"value\":\"nickname\",\"range\":[17,25]},{\"type\":{\"label\":\"}\"},\"range\":[25,26]},{\"type\":{\"label\":\"template\"},\"value\":\"\",\"range\":[26,26]},{\"type\":{\"label\":\"`\"},\"range\":[26,27]},{\"type\":{\"label\":\")\"},\"range\":[27,28]}]",
   visitorKeys: _powerAssertVisitorKeys
 }));
-
-assert(_rec3._expr(_rec3._capt('Hello, ' + _rec3._capt(_rec3._capt(user, 'arguments/0/expressions/0/object').nickname, 'arguments/0/expressions/0'), 'arguments/0'), {
-  content: 'assert(`Hello, ${user.nickname}`)',
-  filepath: 'test/fixtures/TemplateLiteral/fixture.js',
+assert(_rec3._expr(_rec3._capt("Hello, ".concat(_rec3._capt(_rec3._capt(user, "arguments/0/expressions/0/object").nickname, "arguments/0/expressions/0")), "arguments/0"), {
+  content: "assert(`Hello, ${user.nickname}`)",
+  filepath: "test/fixtures/TemplateLiteral/fixture.js",
   line: 7,
-  ast: '{"type":"CallExpression","callee":{"type":"Identifier","name":"assert","range":[0,6]},"arguments":[{"type":"TemplateLiteral","quasis":[{"type":"TemplateElement","value":{"raw":"Hello, ","cooked":"Hello, "},"tail":false,"range":[8,15]},{"type":"TemplateElement","value":{"raw":"","cooked":""},"tail":true,"range":[31,31]}],"expressions":[{"type":"MemberExpression","object":{"type":"Identifier","name":"user","range":[17,21]},"property":{"type":"Identifier","name":"nickname","range":[22,30]},"computed":false,"range":[17,30]}],"range":[7,32]}],"range":[0,33]}',
-  tokens: '[{"type":{"label":"name"},"value":"assert","range":[0,6]},{"type":{"label":"("},"range":[6,7]},{"type":{"label":"`"},"range":[7,8]},{"type":{"label":"template"},"value":"Hello, ","range":[8,15]},{"type":{"label":"${"},"range":[15,17]},{"type":{"label":"name"},"value":"user","range":[17,21]},{"type":{"label":"."},"range":[21,22]},{"type":{"label":"name"},"value":"nickname","range":[22,30]},{"type":{"label":"}"},"range":[30,31]},{"type":{"label":"template"},"value":"","range":[31,31]},{"type":{"label":"`"},"range":[31,32]},{"type":{"label":")"},"range":[32,33]}]',
+  ast: "{\"type\":\"CallExpression\",\"callee\":{\"type\":\"Identifier\",\"name\":\"assert\",\"range\":[0,6]},\"arguments\":[{\"type\":\"TemplateLiteral\",\"quasis\":[{\"type\":\"TemplateElement\",\"value\":{\"raw\":\"Hello, \",\"cooked\":\"Hello, \"},\"tail\":false,\"range\":[8,15]},{\"type\":\"TemplateElement\",\"value\":{\"raw\":\"\",\"cooked\":\"\"},\"tail\":true,\"range\":[31,31]}],\"expressions\":[{\"type\":\"MemberExpression\",\"object\":{\"type\":\"Identifier\",\"name\":\"user\",\"range\":[17,21]},\"property\":{\"type\":\"Identifier\",\"name\":\"nickname\",\"range\":[22,30]},\"computed\":false,\"range\":[17,30]}],\"range\":[7,32]}],\"range\":[0,33]}",
+  tokens: "[{\"type\":{\"label\":\"name\"},\"value\":\"assert\",\"range\":[0,6]},{\"type\":{\"label\":\"(\"},\"range\":[6,7]},{\"type\":{\"label\":\"`\"},\"range\":[7,8]},{\"type\":{\"label\":\"template\"},\"value\":\"Hello, \",\"range\":[8,15]},{\"type\":{\"label\":\"${\"},\"range\":[15,17]},{\"type\":{\"label\":\"name\"},\"value\":\"user\",\"range\":[17,21]},{\"type\":{\"label\":\".\"},\"range\":[21,22]},{\"type\":{\"label\":\"name\"},\"value\":\"nickname\",\"range\":[22,30]},{\"type\":{\"label\":\"}\"},\"range\":[30,31]},{\"type\":{\"label\":\"template\"},\"value\":\"\",\"range\":[31,31]},{\"type\":{\"label\":\"`\"},\"range\":[31,32]},{\"type\":{\"label\":\")\"},\"range\":[32,33]}]",
   visitorKeys: _powerAssertVisitorKeys
 }));
diff --git a/test/fixtures/TemplateLiteral/expected.js b/test/fixtures/TemplateLiteral/expected.js
index 7d46cd4..1f46a35 100644
--- a/test/fixtures/TemplateLiteral/expected.js
+++ b/test/fixtures/TemplateLiteral/expected.js
@@ -5,20 +5,18 @@ var _powerAssertRecorder = function () { function PowerAssertRecorder() { this.c
     _rec2 = new _powerAssertRecorder(),
     _rec3 = new _powerAssertRecorder();
 
-assert(_rec._expr(_rec._capt(`Hello`, 'arguments/0'), {
-  content: 'assert(`Hello`)',
-  filepath: 'test/fixtures/TemplateLiteral/fixture.js',
+assert(_rec._expr(_rec._capt(`Hello`, "arguments/0"), {
+  content: "assert(`Hello`)",
+  filepath: "test/fixtures/TemplateLiteral/fixture.js",
   line: 3
 }));
-
-assert(_rec2._expr(_rec2._capt(`Hello, ${_rec2._capt(nickname, 'arguments/0/expressions/0')}`, 'arguments/0'), {
-  content: 'assert(`Hello, ${nickname}`)',
-  filepath: 'test/fixtures/TemplateLiteral/fixture.js',
+assert(_rec2._expr(_rec2._capt(`Hello, ${_rec2._capt(nickname, "arguments/0/expressions/0")}`, "arguments/0"), {
+  content: "assert(`Hello, ${nickname}`)",
+  filepath: "test/fixtures/TemplateLiteral/fixture.js",
   line: 5
 }));
-
-assert(_rec3._expr(_rec3._capt(`Hello, ${_rec3._capt(_rec3._capt(user, 'arguments/0/expressions/0/object').nickname, 'arguments/0/expressions/0')}`, 'arguments/0'), {
-  content: 'assert(`Hello, ${user.nickname}`)',
-  filepath: 'test/fixtures/TemplateLiteral/fixture.js',
+assert(_rec3._expr(_rec3._capt(`Hello, ${_rec3._capt(_rec3._capt(user, "arguments/0/expressions/0/object").nickname, "arguments/0/expressions/0")}`, "arguments/0"), {
+  content: "assert(`Hello, ${user.nickname}`)",
+  filepath: "test/fixtures/TemplateLiteral/fixture.js",
   line: 7
 }));
diff --git a/test/fixtures/UnaryExpression/expected-presets-es2015.js b/test/fixtures/UnaryExpression/expected-presets-es2015.js
index ca67379..1d53982 100644
--- a/test/fixtures/UnaryExpression/expected-presets-es2015.js
+++ b/test/fixtures/UnaryExpression/expected-presets-es2015.js
@@ -1,8 +1,6 @@
 'use strict';
 
-var _typeof = typeof Symbol === "function" && typeof Symbol.iterator === "symbol" ? function (obj) { return typeof obj; } : function (obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; };
-
-var _powerAssertVisitorKeys = '{"ArrayExpression":["elements"],"AssignmentExpression":["left","right"],"BinaryExpression":["left","right"],"Directive":["value"],"DirectiveLiteral":[],"BlockStatement":["directives","body"],"BreakStatement":["label"],"CallExpression":["callee","arguments"],"CatchClause":["param","body"],"ConditionalExpression":["test","consequent","alternate"],"ContinueStatement":["label"],"DebuggerStatement":[],"DoWhileStatement":["test","body"],"EmptyStatement":[],"ExpressionStatement":["expression"],"File":["program"],"ForInStatement":["left","right","body"],"ForStatement":["init","test","update","body"],"FunctionDeclaration":["id","params","body","returnType","typeParameters"],"FunctionExpression":["id","params","body","returnType","typeParameters"],"Identifier":["typeAnnotation"],"IfStatement":["test","consequent","alternate"],"LabeledStatement":["label","body"],"StringLiteral":[],"NumericLiteral":[],"NullLiteral":[],"BooleanLiteral":[],"RegExpLiteral":[],"LogicalExpression":["left","right"],"MemberExpression":["object","property"],"NewExpression":["callee","arguments"],"Program":["directives","body"],"ObjectExpression":["properties"],"ObjectMethod":["key","params","body","decorators","returnType","typeParameters"],"ObjectProperty":["key","value","decorators"],"RestElement":["argument","typeAnnotation"],"ReturnStatement":["argument"],"SequenceExpression":["expressions"],"SwitchCase":["test","consequent"],"SwitchStatement":["discriminant","cases"],"ThisExpression":[],"ThrowStatement":["argument"],"TryStatement":["block","handler","finalizer"],"UnaryExpression":["argument"],"UpdateExpression":["argument"],"VariableDeclaration":["declarations"],"VariableDeclarator":["id","init"],"WhileStatement":["test","body"],"WithStatement":["object","body"],"AssignmentPattern":["left","right"],"ArrayPattern":["elements","typeAnnotation"],"ArrowFunctionExpression":["params","body","returnType","typeParameters"],"ClassBody":["body"],"ClassDeclaration":["id","body","superClass","mixins","typeParameters","superTypeParameters","implements","decorators"],"ClassExpression":["id","body","superClass","mixins","typeParameters","superTypeParameters","implements","decorators"],"ExportAllDeclaration":["source"],"ExportDefaultDeclaration":["declaration"],"ExportNamedDeclaration":["declaration","specifiers","source"],"ExportSpecifier":["local","exported"],"ForOfStatement":["left","right","body"],"ImportDeclaration":["specifiers","source"],"ImportDefaultSpecifier":["local"],"ImportNamespaceSpecifier":["local"],"ImportSpecifier":["local","imported"],"MetaProperty":["meta","property"],"ClassMethod":["key","params","body","decorators","returnType","typeParameters"],"ObjectPattern":["properties","typeAnnotation"],"SpreadElement":["argument"],"Super":[],"TaggedTemplateExpression":["tag","quasi"],"TemplateElement":[],"TemplateLiteral":["quasis","expressions"],"YieldExpression":["argument"],"AnyTypeAnnotation":[],"ArrayTypeAnnotation":["elementType"],"BooleanTypeAnnotation":[],"BooleanLiteralTypeAnnotation":[],"NullLiteralTypeAnnotation":[],"ClassImplements":["id","typeParameters"],"ClassProperty":["key","value","typeAnnotation","decorators"],"DeclareClass":["id","typeParameters","extends","body"],"DeclareFunction":["id"],"DeclareInterface":["id","typeParameters","extends","body"],"DeclareModule":["id","body"],"DeclareModuleExports":["typeAnnotation"],"DeclareTypeAlias":["id","typeParameters","right"],"DeclareOpaqueType":["id","typeParameters","supertype"],"DeclareVariable":["id"],"DeclareExportDeclaration":["declaration","specifiers","source"],"ExistentialTypeParam":[],"FunctionTypeAnnotation":["typeParameters","params","rest","returnType"],"FunctionTypeParam":["name","typeAnnotation"],"GenericTypeAnnotation":["id","typeParameters"],"InterfaceExtends":["id","typeParameters"],"InterfaceDeclaration":["id","typeParameters","extends","body"],"IntersectionTypeAnnotation":["types"],"MixedTypeAnnotation":[],"EmptyTypeAnnotation":[],"NullableTypeAnnotation":["typeAnnotation"],"NumericLiteralTypeAnnotation":[],"NumberTypeAnnotation":[],"StringLiteralTypeAnnotation":[],"StringTypeAnnotation":[],"ThisTypeAnnotation":[],"TupleTypeAnnotation":["types"],"TypeofTypeAnnotation":["argument"],"TypeAlias":["id","typeParameters","right"],"OpaqueType":["id","typeParameters","impltype","supertype"],"TypeAnnotation":["typeAnnotation"],"TypeCastExpression":["expression","typeAnnotation"],"TypeParameter":["bound"],"TypeParameterDeclaration":["params"],"TypeParameterInstantiation":["params"],"ObjectTypeAnnotation":["properties","indexers","callProperties"],"ObjectTypeCallProperty":["value"],"ObjectTypeIndexer":["id","key","value"],"ObjectTypeProperty":["key","value"],"ObjectTypeSpreadProperty":["argument"],"QualifiedTypeIdentifier":["id","qualification"],"UnionTypeAnnotation":["types"],"VoidTypeAnnotation":[],"JSXAttribute":["name","value"],"JSXClosingElement":["name"],"JSXElement":["openingElement","children","closingElement"],"JSXEmptyExpression":[],"JSXExpressionContainer":["expression"],"JSXSpreadChild":["expression"],"JSXIdentifier":[],"JSXMemberExpression":["object","property"],"JSXNamespacedName":["namespace","name"],"JSXOpeningElement":["name","attributes"],"JSXSpreadAttribute":["argument"],"JSXText":[],"Noop":[],"ParenthesizedExpression":["expression"],"AwaitExpression":["argument"],"ForAwaitStatement":["left","right","body"],"BindExpression":["object","callee"],"Import":[],"Decorator":["expression"],"DoExpression":["body"],"ExportDefaultSpecifier":["exported"],"ExportNamespaceSpecifier":["exported"],"RestProperty":["argument"],"SpreadProperty":["argument"]}',
+var _powerAssertVisitorKeys = "{\"ArrayExpression\":[\"elements\"],\"AssignmentExpression\":[\"left\",\"right\"],\"BinaryExpression\":[\"left\",\"right\"],\"Directive\":[\"value\"],\"DirectiveLiteral\":[],\"BlockStatement\":[\"directives\",\"body\"],\"BreakStatement\":[\"label\"],\"CallExpression\":[\"callee\",\"arguments\",\"typeParameters\"],\"CatchClause\":[\"param\",\"body\"],\"ConditionalExpression\":[\"test\",\"consequent\",\"alternate\"],\"ContinueStatement\":[\"label\"],\"DebuggerStatement\":[],\"DoWhileStatement\":[\"test\",\"body\"],\"EmptyStatement\":[],\"ExpressionStatement\":[\"expression\"],\"File\":[\"program\"],\"ForInStatement\":[\"left\",\"right\",\"body\"],\"ForStatement\":[\"init\",\"test\",\"update\",\"body\"],\"FunctionDeclaration\":[\"id\",\"params\",\"body\",\"returnType\",\"typeParameters\"],\"FunctionExpression\":[\"id\",\"params\",\"body\",\"returnType\",\"typeParameters\"],\"Identifier\":[\"typeAnnotation\"],\"IfStatement\":[\"test\",\"consequent\",\"alternate\"],\"LabeledStatement\":[\"label\",\"body\"],\"StringLiteral\":[],\"NumericLiteral\":[],\"NullLiteral\":[],\"BooleanLiteral\":[],\"RegExpLiteral\":[],\"LogicalExpression\":[\"left\",\"right\"],\"MemberExpression\":[\"object\",\"property\"],\"NewExpression\":[\"callee\",\"arguments\",\"typeParameters\"],\"Program\":[\"directives\",\"body\"],\"ObjectExpression\":[\"properties\"],\"ObjectMethod\":[\"key\",\"params\",\"body\",\"decorators\",\"returnType\",\"typeParameters\"],\"ObjectProperty\":[\"key\",\"value\",\"decorators\"],\"RestElement\":[\"argument\",\"typeAnnotation\"],\"ReturnStatement\":[\"argument\"],\"SequenceExpression\":[\"expressions\"],\"SwitchCase\":[\"test\",\"consequent\"],\"SwitchStatement\":[\"discriminant\",\"cases\"],\"ThisExpression\":[],\"ThrowStatement\":[\"argument\"],\"TryStatement\":[\"block\",\"handler\",\"finalizer\"],\"UnaryExpression\":[\"argument\"],\"UpdateExpression\":[\"argument\"],\"VariableDeclaration\":[\"declarations\"],\"VariableDeclarator\":[\"id\",\"init\"],\"WhileStatement\":[\"test\",\"body\"],\"WithStatement\":[\"object\",\"body\"],\"AssignmentPattern\":[\"left\",\"right\"],\"ArrayPattern\":[\"elements\",\"typeAnnotation\"],\"ArrowFunctionExpression\":[\"params\",\"body\",\"returnType\",\"typeParameters\"],\"ClassBody\":[\"body\"],\"ClassDeclaration\":[\"id\",\"body\",\"superClass\",\"mixins\",\"typeParameters\",\"superTypeParameters\",\"implements\",\"decorators\"],\"ClassExpression\":[\"id\",\"body\",\"superClass\",\"mixins\",\"typeParameters\",\"superTypeParameters\",\"implements\",\"decorators\"],\"ExportAllDeclaration\":[\"source\"],\"ExportDefaultDeclaration\":[\"declaration\"],\"ExportNamedDeclaration\":[\"declaration\",\"specifiers\",\"source\"],\"ExportSpecifier\":[\"local\",\"exported\"],\"ForOfStatement\":[\"left\",\"right\",\"body\"],\"ImportDeclaration\":[\"specifiers\",\"source\"],\"ImportDefaultSpecifier\":[\"local\"],\"ImportNamespaceSpecifier\":[\"local\"],\"ImportSpecifier\":[\"local\",\"imported\"],\"MetaProperty\":[\"meta\",\"property\"],\"ClassMethod\":[\"key\",\"params\",\"body\",\"decorators\",\"returnType\",\"typeParameters\"],\"ObjectPattern\":[\"properties\",\"typeAnnotation\"],\"SpreadElement\":[\"argument\"],\"Super\":[],\"TaggedTemplateExpression\":[\"tag\",\"quasi\"],\"TemplateElement\":[],\"TemplateLiteral\":[\"quasis\",\"expressions\"],\"YieldExpression\":[\"argument\"],\"AnyTypeAnnotation\":[],\"ArrayTypeAnnotation\":[\"elementType\"],\"BooleanTypeAnnotation\":[],\"BooleanLiteralTypeAnnotation\":[],\"NullLiteralTypeAnnotation\":[],\"ClassImplements\":[\"id\",\"typeParameters\"],\"DeclareClass\":[\"id\",\"typeParameters\",\"extends\",\"body\"],\"DeclareFunction\":[\"id\"],\"DeclareInterface\":[\"id\",\"typeParameters\",\"extends\",\"body\"],\"DeclareModule\":[\"id\",\"body\"],\"DeclareModuleExports\":[\"typeAnnotation\"],\"DeclareTypeAlias\":[\"id\",\"typeParameters\",\"right\"],\"DeclareOpaqueType\":[\"id\",\"typeParameters\",\"supertype\"],\"DeclareVariable\":[\"id\"],\"DeclareExportDeclaration\":[\"declaration\",\"specifiers\",\"source\"],\"DeclareExportAllDeclaration\":[\"source\"],\"DeclaredPredicate\":[\"value\"],\"ExistsTypeAnnotation\":[],\"FunctionTypeAnnotation\":[\"typeParameters\",\"params\",\"rest\",\"returnType\"],\"FunctionTypeParam\":[\"name\",\"typeAnnotation\"],\"GenericTypeAnnotation\":[\"id\",\"typeParameters\"],\"InferredPredicate\":[],\"InterfaceExtends\":[\"id\",\"typeParameters\"],\"InterfaceDeclaration\":[\"id\",\"typeParameters\",\"extends\",\"body\"],\"IntersectionTypeAnnotation\":[\"types\"],\"MixedTypeAnnotation\":[],\"EmptyTypeAnnotation\":[],\"NullableTypeAnnotation\":[\"typeAnnotation\"],\"NumberLiteralTypeAnnotation\":[],\"NumberTypeAnnotation\":[],\"ObjectTypeAnnotation\":[\"properties\",\"indexers\",\"callProperties\"],\"ObjectTypeCallProperty\":[\"value\"],\"ObjectTypeIndexer\":[\"id\",\"key\",\"value\"],\"ObjectTypeProperty\":[\"key\",\"value\"],\"ObjectTypeSpreadProperty\":[\"argument\"],\"OpaqueType\":[\"id\",\"typeParameters\",\"supertype\",\"impltype\"],\"QualifiedTypeIdentifier\":[\"id\",\"qualification\"],\"StringLiteralTypeAnnotation\":[],\"StringTypeAnnotation\":[],\"ThisTypeAnnotation\":[],\"TupleTypeAnnotation\":[\"types\"],\"TypeofTypeAnnotation\":[\"argument\"],\"TypeAlias\":[\"id\",\"typeParameters\",\"right\"],\"TypeAnnotation\":[\"typeAnnotation\"],\"TypeCastExpression\":[\"expression\",\"typeAnnotation\"],\"TypeParameter\":[\"bound\",\"default\"],\"TypeParameterDeclaration\":[\"params\"],\"TypeParameterInstantiation\":[\"params\"],\"UnionTypeAnnotation\":[\"types\"],\"VoidTypeAnnotation\":[],\"JSXAttribute\":[\"name\",\"value\"],\"JSXClosingElement\":[\"name\"],\"JSXElement\":[\"openingElement\",\"children\",\"closingElement\"],\"JSXEmptyExpression\":[],\"JSXExpressionContainer\":[\"expression\"],\"JSXSpreadChild\":[\"expression\"],\"JSXIdentifier\":[],\"JSXMemberExpression\":[\"object\",\"property\"],\"JSXNamespacedName\":[\"namespace\",\"name\"],\"JSXOpeningElement\":[\"name\",\"attributes\"],\"JSXSpreadAttribute\":[\"argument\"],\"JSXText\":[],\"JSXFragment\":[\"openingFragment\",\"children\",\"closingFragment\"],\"JSXOpeningFragment\":[],\"JSXClosingFragment\":[],\"Noop\":[],\"ParenthesizedExpression\":[\"expression\"],\"AwaitExpression\":[\"argument\"],\"BindExpression\":[\"object\",\"callee\"],\"ClassProperty\":[\"key\",\"value\",\"typeAnnotation\",\"decorators\"],\"Import\":[],\"Decorator\":[\"expression\"],\"DoExpression\":[\"body\"],\"ExportDefaultSpecifier\":[\"exported\"],\"ExportNamespaceSpecifier\":[\"exported\"],\"TSParameterProperty\":[\"parameter\"],\"TSDeclareFunction\":[\"id\",\"typeParameters\",\"params\",\"returnType\"],\"TSDeclareMethod\":[\"decorators\",\"key\",\"typeParameters\",\"params\",\"returnType\"],\"TSQualifiedName\":[\"left\",\"right\"],\"TSCallSignatureDeclaration\":[\"typeParameters\",\"parameters\",\"typeAnnotation\"],\"TSConstructSignatureDeclaration\":[\"typeParameters\",\"parameters\",\"typeAnnotation\"],\"TSPropertySignature\":[\"key\",\"typeAnnotation\",\"initializer\"],\"TSMethodSignature\":[\"key\",\"typeParameters\",\"parameters\",\"typeAnnotation\"],\"TSIndexSignature\":[\"parameters\",\"typeAnnotation\"],\"TSAnyKeyword\":[],\"TSNumberKeyword\":[],\"TSObjectKeyword\":[],\"TSBooleanKeyword\":[],\"TSStringKeyword\":[],\"TSSymbolKeyword\":[],\"TSVoidKeyword\":[],\"TSUndefinedKeyword\":[],\"TSNullKeyword\":[],\"TSNeverKeyword\":[],\"TSThisType\":[],\"TSFunctionType\":[\"typeParameters\",\"typeAnnotation\"],\"TSConstructorType\":[\"typeParameters\",\"typeAnnotation\"],\"TSTypeReference\":[\"typeName\",\"typeParameters\"],\"TSTypePredicate\":[\"parameterName\",\"typeAnnotation\"],\"TSTypeQuery\":[\"exprName\"],\"TSTypeLiteral\":[\"members\"],\"TSArrayType\":[\"elementType\"],\"TSTupleType\":[\"elementTypes\"],\"TSUnionType\":[\"types\"],\"TSIntersectionType\":[\"types\"],\"TSParenthesizedType\":[\"typeAnnotation\"],\"TSTypeOperator\":[\"typeAnnotation\"],\"TSIndexedAccessType\":[\"objectType\",\"indexType\"],\"TSMappedType\":[\"typeParameter\",\"typeAnnotation\"],\"TSLiteralType\":[\"literal\"],\"TSExpressionWithTypeArguments\":[\"expression\",\"typeParameters\"],\"TSInterfaceDeclaration\":[\"id\",\"typeParameters\",\"extends\",\"body\"],\"TSInterfaceBody\":[\"body\"],\"TSTypeAliasDeclaration\":[\"id\",\"typeParameters\",\"typeAnnotation\"],\"TSAsExpression\":[\"expression\",\"typeAnnotation\"],\"TSTypeAssertion\":[\"typeAnnotation\",\"expression\"],\"TSEnumDeclaration\":[\"id\",\"members\"],\"TSEnumMember\":[\"id\",\"initializer\"],\"TSModuleDeclaration\":[\"id\",\"body\"],\"TSModuleBlock\":[\"body\"],\"TSImportEqualsDeclaration\":[\"id\",\"moduleReference\"],\"TSExternalModuleReference\":[\"expression\"],\"TSNonNullExpression\":[\"expression\"],\"TSExportAssignment\":[\"expression\"],\"TSNamespaceExportDeclaration\":[\"id\"],\"TSTypeAnnotation\":[\"typeAnnotation\"],\"TSTypeParameterInstantiation\":[\"params\"],\"TSTypeParameterDeclaration\":[\"params\"],\"TSTypeParameter\":[\"constraint\",\"default\"]}",
     _powerAssertRecorder = function () { function PowerAssertRecorder() { this.captured = []; } PowerAssertRecorder.prototype._capt = function _capt(value, espath) { this.captured.push({ value: value, espath: espath }); return value; }; PowerAssertRecorder.prototype._expr = function _expr(value, source) { var capturedValues = this.captured; this.captured = []; return { powerAssertContext: { value: value, events: capturedValues }, source: source }; }; return PowerAssertRecorder; }(),
     _rec = new _powerAssertRecorder(),
     _rec2 = new _powerAssertRecorder(),
@@ -13,72 +11,68 @@ var _powerAssertVisitorKeys = '{"ArrayExpression":["elements"],"AssignmentExpres
     _rec7 = new _powerAssertRecorder(),
     _rec8 = new _powerAssertRecorder();
 
-assert(_rec._expr(_rec._capt(!_rec._capt(truth, 'arguments/0/argument'), 'arguments/0'), {
-  content: 'assert(!truth)',
-  filepath: 'test/fixtures/UnaryExpression/fixture.js',
+function _typeof(obj) { if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }
+
+assert(_rec._expr(_rec._capt(!_rec._capt(truth, "arguments/0/argument"), "arguments/0"), {
+  content: "assert(!truth)",
+  filepath: "test/fixtures/UnaryExpression/fixture.js",
   line: 3,
-  ast: '{"type":"CallExpression","callee":{"type":"Identifier","name":"assert","range":[0,6]},"arguments":[{"type":"UnaryExpression","operator":"!","argument":{"type":"Identifier","name":"truth","range":[8,13]},"prefix":true,"range":[7,13]}],"range":[0,14]}',
-  tokens: '[{"type":{"label":"name"},"value":"assert","range":[0,6]},{"type":{"label":"("},"range":[6,7]},{"type":{"label":"prefix"},"value":"!","range":[7,8]},{"type":{"label":"name"},"value":"truth","range":[8,13]},{"type":{"label":")"},"range":[13,14]}]',
+  ast: "{\"type\":\"CallExpression\",\"callee\":{\"type\":\"Identifier\",\"name\":\"assert\",\"range\":[0,6]},\"arguments\":[{\"type\":\"UnaryExpression\",\"operator\":\"!\",\"argument\":{\"type\":\"Identifier\",\"name\":\"truth\",\"range\":[8,13]},\"prefix\":true,\"range\":[7,13]}],\"range\":[0,14]}",
+  tokens: "[{\"type\":{\"label\":\"name\"},\"value\":\"assert\",\"range\":[0,6]},{\"type\":{\"label\":\"(\"},\"range\":[6,7]},{\"type\":{\"label\":\"!\"},\"value\":\"!\",\"range\":[7,8]},{\"type\":{\"label\":\"name\"},\"value\":\"truth\",\"range\":[8,13]},{\"type\":{\"label\":\")\"},\"range\":[13,14]}]",
   visitorKeys: _powerAssertVisitorKeys
 }));
-
-assert(_rec2._expr(_rec2._capt(!_rec2._capt(!_rec2._capt(some, 'arguments/0/argument/argument'), 'arguments/0/argument'), 'arguments/0'), {
-  content: 'assert(!!some)',
-  filepath: 'test/fixtures/UnaryExpression/fixture.js',
+assert(_rec2._expr(_rec2._capt(!_rec2._capt(!_rec2._capt(some, "arguments/0/argument/argument"), "arguments/0/argument"), "arguments/0"), {
+  content: "assert(!!some)",
+  filepath: "test/fixtures/UnaryExpression/fixture.js",
   line: 5,
-  ast: '{"type":"CallExpression","callee":{"type":"Identifier","name":"assert","range":[0,6]},"arguments":[{"type":"UnaryExpression","operator":"!","argument":{"type":"UnaryExpression","operator":"!","argument":{"type":"Identifier","name":"some","range":[9,13]},"prefix":true,"range":[8,13]},"prefix":true,"range":[7,13]}],"range":[0,14]}',
-  tokens: '[{"type":{"label":"name"},"value":"assert","range":[0,6]},{"type":{"label":"("},"range":[6,7]},{"type":{"label":"prefix"},"value":"!","range":[7,8]},{"type":{"label":"prefix"},"value":"!","range":[8,9]},{"type":{"label":"name"},"value":"some","range":[9,13]},{"type":{"label":")"},"range":[13,14]}]',
+  ast: "{\"type\":\"CallExpression\",\"callee\":{\"type\":\"Identifier\",\"name\":\"assert\",\"range\":[0,6]},\"arguments\":[{\"type\":\"UnaryExpression\",\"operator\":\"!\",\"argument\":{\"type\":\"UnaryExpression\",\"operator\":\"!\",\"argument\":{\"type\":\"Identifier\",\"name\":\"some\",\"range\":[9,13]},\"prefix\":true,\"range\":[8,13]},\"prefix\":true,\"range\":[7,13]}],\"range\":[0,14]}",
+  tokens: "[{\"type\":{\"label\":\"name\"},\"value\":\"assert\",\"range\":[0,6]},{\"type\":{\"label\":\"(\"},\"range\":[6,7]},{\"type\":{\"label\":\"!\"},\"value\":\"!\",\"range\":[7,8]},{\"type\":{\"label\":\"!\"},\"value\":\"!\",\"range\":[8,9]},{\"type\":{\"label\":\"name\"},\"value\":\"some\",\"range\":[9,13]},{\"type\":{\"label\":\")\"},\"range\":[13,14]}]",
   visitorKeys: _powerAssertVisitorKeys
 }));
-
-assert(_rec3._expr(_rec3._capt(!_rec3._capt(!_rec3._capt(_rec3._capt(foo, 'arguments/0/argument/argument/object').bar, 'arguments/0/argument/argument'), 'arguments/0/argument'), 'arguments/0'), {
-  content: 'assert(!!foo.bar)',
-  filepath: 'test/fixtures/UnaryExpression/fixture.js',
+assert(_rec3._expr(_rec3._capt(!_rec3._capt(!_rec3._capt(_rec3._capt(foo, "arguments/0/argument/argument/object").bar, "arguments/0/argument/argument"), "arguments/0/argument"), "arguments/0"), {
+  content: "assert(!!foo.bar)",
+  filepath: "test/fixtures/UnaryExpression/fixture.js",
   line: 7,
-  ast: '{"type":"CallExpression","callee":{"type":"Identifier","name":"assert","range":[0,6]},"arguments":[{"type":"UnaryExpression","operator":"!","argument":{"type":"UnaryExpression","operator":"!","argument":{"type":"MemberExpression","object":{"type":"Identifier","name":"foo","range":[9,12]},"property":{"type":"Identifier","name":"bar","range":[13,16]},"computed":false,"range":[9,16]},"prefix":true,"range":[8,16]},"prefix":true,"range":[7,16]}],"range":[0,17]}',
-  tokens: '[{"type":{"label":"name"},"value":"assert","range":[0,6]},{"type":{"label":"("},"range":[6,7]},{"type":{"label":"prefix"},"value":"!","range":[7,8]},{"type":{"label":"prefix"},"value":"!","range":[8,9]},{"type":{"label":"name"},"value":"foo","range":[9,12]},{"type":{"label":"."},"range":[12,13]},{"type":{"label":"name"},"value":"bar","range":[13,16]},{"type":{"label":")"},"range":[16,17]}]',
+  ast: "{\"type\":\"CallExpression\",\"callee\":{\"type\":\"Identifier\",\"name\":\"assert\",\"range\":[0,6]},\"arguments\":[{\"type\":\"UnaryExpression\",\"operator\":\"!\",\"argument\":{\"type\":\"UnaryExpression\",\"operator\":\"!\",\"argument\":{\"type\":\"MemberExpression\",\"object\":{\"type\":\"Identifier\",\"name\":\"foo\",\"range\":[9,12]},\"property\":{\"type\":\"Identifier\",\"name\":\"bar\",\"range\":[13,16]},\"computed\":false,\"range\":[9,16]},\"prefix\":true,\"range\":[8,16]},\"prefix\":true,\"range\":[7,16]}],\"range\":[0,17]}",
+  tokens: "[{\"type\":{\"label\":\"name\"},\"value\":\"assert\",\"range\":[0,6]},{\"type\":{\"label\":\"(\"},\"range\":[6,7]},{\"type\":{\"label\":\"!\"},\"value\":\"!\",\"range\":[7,8]},{\"type\":{\"label\":\"!\"},\"value\":\"!\",\"range\":[8,9]},{\"type\":{\"label\":\"name\"},\"value\":\"foo\",\"range\":[9,12]},{\"type\":{\"label\":\".\"},\"range\":[12,13]},{\"type\":{\"label\":\"name\"},\"value\":\"bar\",\"range\":[13,16]},{\"type\":{\"label\":\")\"},\"range\":[16,17]}]",
   visitorKeys: _powerAssertVisitorKeys
 }));
-
-assert(_rec4._expr(_rec4._capt(delete _rec4._capt(_rec4._capt(foo, 'arguments/0/argument/object').bar, 'arguments/0/argument'), 'arguments/0'), {
-  content: 'assert(delete foo.bar)',
-  filepath: 'test/fixtures/UnaryExpression/fixture.js',
+assert(_rec4._expr(_rec4._capt(delete _rec4._capt(_rec4._capt(foo, "arguments/0/argument/object").bar, "arguments/0/argument"), "arguments/0"), {
+  content: "assert(delete foo.bar)",
+  filepath: "test/fixtures/UnaryExpression/fixture.js",
   line: 9,
-  ast: '{"type":"CallExpression","callee":{"type":"Identifier","name":"assert","range":[0,6]},"arguments":[{"type":"UnaryExpression","operator":"delete","argument":{"type":"MemberExpression","object":{"type":"Identifier","name":"foo","range":[14,17]},"property":{"type":"Identifier","name":"bar","range":[18,21]},"computed":false,"range":[14,21]},"prefix":true,"range":[7,21]}],"range":[0,22]}',
-  tokens: '[{"type":{"label":"name"},"value":"assert","range":[0,6]},{"type":{"label":"("},"range":[6,7]},{"type":{"label":"delete"},"value":"delete","range":[7,13]},{"type":{"label":"name"},"value":"foo","range":[14,17]},{"type":{"label":"."},"range":[17,18]},{"type":{"label":"name"},"value":"bar","range":[18,21]},{"type":{"label":")"},"range":[21,22]}]',
+  ast: "{\"type\":\"CallExpression\",\"callee\":{\"type\":\"Identifier\",\"name\":\"assert\",\"range\":[0,6]},\"arguments\":[{\"type\":\"UnaryExpression\",\"operator\":\"delete\",\"argument\":{\"type\":\"MemberExpression\",\"object\":{\"type\":\"Identifier\",\"name\":\"foo\",\"range\":[14,17]},\"property\":{\"type\":\"Identifier\",\"name\":\"bar\",\"range\":[18,21]},\"computed\":false,\"range\":[14,21]},\"prefix\":true,\"range\":[7,21]}],\"range\":[0,22]}",
+  tokens: "[{\"type\":{\"label\":\"name\"},\"value\":\"assert\",\"range\":[0,6]},{\"type\":{\"label\":\"(\"},\"range\":[6,7]},{\"type\":{\"label\":\"delete\"},\"value\":\"delete\",\"range\":[7,13]},{\"type\":{\"label\":\"name\"},\"value\":\"foo\",\"range\":[14,17]},{\"type\":{\"label\":\".\"},\"range\":[17,18]},{\"type\":{\"label\":\"name\"},\"value\":\"bar\",\"range\":[18,21]},{\"type\":{\"label\":\")\"},\"range\":[21,22]}]",
   visitorKeys: _powerAssertVisitorKeys
 }));
-
-assert(_rec5._expr(_rec5._capt(_rec5._capt(typeof foo === 'undefined' ? 'undefined' : _typeof(foo), 'arguments/0/left') !== 'undefined', 'arguments/0'), {
-  content: 'assert(typeof foo !== \'undefined\')',
-  filepath: 'test/fixtures/UnaryExpression/fixture.js',
+assert(_rec5._expr(_rec5._capt(_rec5._capt(typeof foo === "undefined" ? "undefined" : _typeof(foo), "arguments/0/left") !== 'undefined', "arguments/0"), {
+  content: "assert(typeof foo !== 'undefined')",
+  filepath: "test/fixtures/UnaryExpression/fixture.js",
   line: 11,
-  ast: '{"type":"CallExpression","callee":{"type":"Identifier","name":"assert","range":[0,6]},"arguments":[{"type":"BinaryExpression","operator":"!==","left":{"type":"UnaryExpression","operator":"typeof","argument":{"type":"Identifier","name":"foo","range":[14,17]},"prefix":true,"range":[7,17]},"right":{"type":"StringLiteral","value":"undefined","range":[22,33]},"range":[7,33]}],"range":[0,34]}',
-  tokens: '[{"type":{"label":"name"},"value":"assert","range":[0,6]},{"type":{"label":"("},"range":[6,7]},{"type":{"label":"typeof"},"value":"typeof","range":[7,13]},{"type":{"label":"name"},"value":"foo","range":[14,17]},{"type":{"label":"==/!="},"value":"!==","range":[18,21]},{"type":{"label":"string"},"value":"undefined","range":[22,33]},{"type":{"label":")"},"range":[33,34]}]',
+  ast: "{\"type\":\"CallExpression\",\"callee\":{\"type\":\"Identifier\",\"name\":\"assert\",\"range\":[0,6]},\"arguments\":[{\"type\":\"BinaryExpression\",\"operator\":\"!==\",\"left\":{\"type\":\"UnaryExpression\",\"operator\":\"typeof\",\"argument\":{\"type\":\"Identifier\",\"name\":\"foo\",\"range\":[14,17]},\"prefix\":true,\"range\":[7,17]},\"right\":{\"type\":\"StringLiteral\",\"value\":\"undefined\",\"range\":[22,33]},\"range\":[7,33]}],\"range\":[0,34]}",
+  tokens: "[{\"type\":{\"label\":\"name\"},\"value\":\"assert\",\"range\":[0,6]},{\"type\":{\"label\":\"(\"},\"range\":[6,7]},{\"type\":{\"label\":\"typeof\"},\"value\":\"typeof\",\"range\":[7,13]},{\"type\":{\"label\":\"name\"},\"value\":\"foo\",\"range\":[14,17]},{\"type\":{\"label\":\"==/!=\"},\"value\":\"!==\",\"range\":[18,21]},{\"type\":{\"label\":\"string\"},\"value\":\"undefined\",\"range\":[22,33]},{\"type\":{\"label\":\")\"},\"range\":[33,34]}]",
   visitorKeys: _powerAssertVisitorKeys
 }));
-
-assert(_rec6._expr(_rec6._capt(_rec6._capt(_typeof(_rec6._capt(_rec6._capt(foo, 'arguments/0/left/argument/object').bar, 'arguments/0/left/argument')), 'arguments/0/left') !== 'undefined', 'arguments/0'), {
-  content: 'assert(typeof foo.bar !== \'undefined\')',
-  filepath: 'test/fixtures/UnaryExpression/fixture.js',
+assert(_rec6._expr(_rec6._capt(_rec6._capt(_typeof(_rec6._capt(_rec6._capt(foo, "arguments/0/left/argument/object").bar, "arguments/0/left/argument")), "arguments/0/left") !== 'undefined', "arguments/0"), {
+  content: "assert(typeof foo.bar !== 'undefined')",
+  filepath: "test/fixtures/UnaryExpression/fixture.js",
   line: 13,
-  ast: '{"type":"CallExpression","callee":{"type":"Identifier","name":"assert","range":[0,6]},"arguments":[{"type":"BinaryExpression","operator":"!==","left":{"type":"UnaryExpression","operator":"typeof","argument":{"type":"MemberExpression","object":{"type":"Identifier","name":"foo","range":[14,17]},"property":{"type":"Identifier","name":"bar","range":[18,21]},"computed":false,"range":[14,21]},"prefix":true,"range":[7,21]},"right":{"type":"StringLiteral","value":"undefined","range":[26,37]},"range":[7,37]}],"range":[0,38]}',
-  tokens: '[{"type":{"label":"name"},"value":"assert","range":[0,6]},{"type":{"label":"("},"range":[6,7]},{"type":{"label":"typeof"},"value":"typeof","range":[7,13]},{"type":{"label":"name"},"value":"foo","range":[14,17]},{"type":{"label":"."},"range":[17,18]},{"type":{"label":"name"},"value":"bar","range":[18,21]},{"type":{"label":"==/!="},"value":"!==","range":[22,25]},{"type":{"label":"string"},"value":"undefined","range":[26,37]},{"type":{"label":")"},"range":[37,38]}]',
+  ast: "{\"type\":\"CallExpression\",\"callee\":{\"type\":\"Identifier\",\"name\":\"assert\",\"range\":[0,6]},\"arguments\":[{\"type\":\"BinaryExpression\",\"operator\":\"!==\",\"left\":{\"type\":\"UnaryExpression\",\"operator\":\"typeof\",\"argument\":{\"type\":\"MemberExpression\",\"object\":{\"type\":\"Identifier\",\"name\":\"foo\",\"range\":[14,17]},\"property\":{\"type\":\"Identifier\",\"name\":\"bar\",\"range\":[18,21]},\"computed\":false,\"range\":[14,21]},\"prefix\":true,\"range\":[7,21]},\"right\":{\"type\":\"StringLiteral\",\"value\":\"undefined\",\"range\":[26,37]},\"range\":[7,37]}],\"range\":[0,38]}",
+  tokens: "[{\"type\":{\"label\":\"name\"},\"value\":\"assert\",\"range\":[0,6]},{\"type\":{\"label\":\"(\"},\"range\":[6,7]},{\"type\":{\"label\":\"typeof\"},\"value\":\"typeof\",\"range\":[7,13]},{\"type\":{\"label\":\"name\"},\"value\":\"foo\",\"range\":[14,17]},{\"type\":{\"label\":\".\"},\"range\":[17,18]},{\"type\":{\"label\":\"name\"},\"value\":\"bar\",\"range\":[18,21]},{\"type\":{\"label\":\"==/!=\"},\"value\":\"!==\",\"range\":[22,25]},{\"type\":{\"label\":\"string\"},\"value\":\"undefined\",\"range\":[26,37]},{\"type\":{\"label\":\")\"},\"range\":[37,38]}]",
   visitorKeys: _powerAssertVisitorKeys
 }));
-
-assert.strictEqual(_rec7._expr(_rec7._capt(typeof foo === 'undefined' ? 'undefined' : _typeof(foo), 'arguments/0'), {
-  content: 'assert.strictEqual(typeof foo, typeof bar)',
-  filepath: 'test/fixtures/UnaryExpression/fixture.js',
+assert.strictEqual(_rec7._expr(_rec7._capt(typeof foo === "undefined" ? "undefined" : _typeof(foo), "arguments/0"), {
+  content: "assert.strictEqual(typeof foo, typeof bar)",
+  filepath: "test/fixtures/UnaryExpression/fixture.js",
   line: 15,
-  ast: '{"type":"CallExpression","callee":{"type":"MemberExpression","object":{"type":"Identifier","name":"assert","range":[0,6]},"property":{"type":"Identifier","name":"strictEqual","range":[7,18]},"computed":false,"range":[0,18]},"arguments":[{"type":"UnaryExpression","operator":"typeof","argument":{"type":"Identifier","name":"foo","range":[26,29]},"prefix":true,"range":[19,29]},{"type":"UnaryExpression","operator":"typeof","argument":{"type":"Identifier","name":"bar","range":[38,41]},"prefix":true,"range":[31,41]}],"range":[0,42]}',
-  tokens: '[{"type":{"label":"name"},"value":"assert","range":[0,6]},{"type":{"label":"."},"range":[6,7]},{"type":{"label":"name"},"value":"strictEqual","range":[7,18]},{"type":{"label":"("},"range":[18,19]},{"type":{"label":"typeof"},"value":"typeof","range":[19,25]},{"type":{"label":"name"},"value":"foo","range":[26,29]},{"type":{"label":","},"range":[29,30]},{"type":{"label":"typeof"},"value":"typeof","range":[31,37]},{"type":{"label":"name"},"value":"bar","range":[38,41]},{"type":{"label":")"},"range":[41,42]}]',
+  ast: "{\"type\":\"CallExpression\",\"callee\":{\"type\":\"MemberExpression\",\"object\":{\"type\":\"Identifier\",\"name\":\"assert\",\"range\":[0,6]},\"property\":{\"type\":\"Identifier\",\"name\":\"strictEqual\",\"range\":[7,18]},\"computed\":false,\"range\":[0,18]},\"arguments\":[{\"type\":\"UnaryExpression\",\"operator\":\"typeof\",\"argument\":{\"type\":\"Identifier\",\"name\":\"foo\",\"range\":[26,29]},\"prefix\":true,\"range\":[19,29]},{\"type\":\"UnaryExpression\",\"operator\":\"typeof\",\"argument\":{\"type\":\"Identifier\",\"name\":\"bar\",\"range\":[38,41]},\"prefix\":true,\"range\":[31,41]}],\"range\":[0,42]}",
+  tokens: "[{\"type\":{\"label\":\"name\"},\"value\":\"assert\",\"range\":[0,6]},{\"type\":{\"label\":\".\"},\"range\":[6,7]},{\"type\":{\"label\":\"name\"},\"value\":\"strictEqual\",\"range\":[7,18]},{\"type\":{\"label\":\"(\"},\"range\":[18,19]},{\"type\":{\"label\":\"typeof\"},\"value\":\"typeof\",\"range\":[19,25]},{\"type\":{\"label\":\"name\"},\"value\":\"foo\",\"range\":[26,29]},{\"type\":{\"label\":\",\"},\"range\":[29,30]},{\"type\":{\"label\":\"typeof\"},\"value\":\"typeof\",\"range\":[31,37]},{\"type\":{\"label\":\"name\"},\"value\":\"bar\",\"range\":[38,41]},{\"type\":{\"label\":\")\"},\"range\":[41,42]}]",
   visitorKeys: _powerAssertVisitorKeys
-}), _rec8._expr(_rec8._capt(typeof bar === 'undefined' ? 'undefined' : _typeof(bar), 'arguments/1'), {
-  content: 'assert.strictEqual(typeof foo, typeof bar)',
-  filepath: 'test/fixtures/UnaryExpression/fixture.js',
+}), _rec8._expr(_rec8._capt(typeof bar === "undefined" ? "undefined" : _typeof(bar), "arguments/1"), {
+  content: "assert.strictEqual(typeof foo, typeof bar)",
+  filepath: "test/fixtures/UnaryExpression/fixture.js",
   line: 15,
-  ast: '{"type":"CallExpression","callee":{"type":"MemberExpression","object":{"type":"Identifier","name":"assert","range":[0,6]},"property":{"type":"Identifier","name":"strictEqual","range":[7,18]},"computed":false,"range":[0,18]},"arguments":[{"type":"UnaryExpression","operator":"typeof","argument":{"type":"Identifier","name":"foo","range":[26,29]},"prefix":true,"range":[19,29]},{"type":"UnaryExpression","operator":"typeof","argument":{"type":"Identifier","name":"bar","range":[38,41]},"prefix":true,"range":[31,41]}],"range":[0,42]}',
-  tokens: '[{"type":{"label":"name"},"value":"assert","range":[0,6]},{"type":{"label":"."},"range":[6,7]},{"type":{"label":"name"},"value":"strictEqual","range":[7,18]},{"type":{"label":"("},"range":[18,19]},{"type":{"label":"typeof"},"value":"typeof","range":[19,25]},{"type":{"label":"name"},"value":"foo","range":[26,29]},{"type":{"label":","},"range":[29,30]},{"type":{"label":"typeof"},"value":"typeof","range":[31,37]},{"type":{"label":"name"},"value":"bar","range":[38,41]},{"type":{"label":")"},"range":[41,42]}]',
+  ast: "{\"type\":\"CallExpression\",\"callee\":{\"type\":\"MemberExpression\",\"object\":{\"type\":\"Identifier\",\"name\":\"assert\",\"range\":[0,6]},\"property\":{\"type\":\"Identifier\",\"name\":\"strictEqual\",\"range\":[7,18]},\"computed\":false,\"range\":[0,18]},\"arguments\":[{\"type\":\"UnaryExpression\",\"operator\":\"typeof\",\"argument\":{\"type\":\"Identifier\",\"name\":\"foo\",\"range\":[26,29]},\"prefix\":true,\"range\":[19,29]},{\"type\":\"UnaryExpression\",\"operator\":\"typeof\",\"argument\":{\"type\":\"Identifier\",\"name\":\"bar\",\"range\":[38,41]},\"prefix\":true,\"range\":[31,41]}],\"range\":[0,42]}",
+  tokens: "[{\"type\":{\"label\":\"name\"},\"value\":\"assert\",\"range\":[0,6]},{\"type\":{\"label\":\".\"},\"range\":[6,7]},{\"type\":{\"label\":\"name\"},\"value\":\"strictEqual\",\"range\":[7,18]},{\"type\":{\"label\":\"(\"},\"range\":[18,19]},{\"type\":{\"label\":\"typeof\"},\"value\":\"typeof\",\"range\":[19,25]},{\"type\":{\"label\":\"name\"},\"value\":\"foo\",\"range\":[26,29]},{\"type\":{\"label\":\",\"},\"range\":[29,30]},{\"type\":{\"label\":\"typeof\"},\"value\":\"typeof\",\"range\":[31,37]},{\"type\":{\"label\":\"name\"},\"value\":\"bar\",\"range\":[38,41]},{\"type\":{\"label\":\")\"},\"range\":[41,42]}]",
   visitorKeys: _powerAssertVisitorKeys
 }));
diff --git a/test/fixtures/UnaryExpression/expected.js b/test/fixtures/UnaryExpression/expected.js
index 864b0b9..aacd543 100644
--- a/test/fixtures/UnaryExpression/expected.js
+++ b/test/fixtures/UnaryExpression/expected.js
@@ -10,48 +10,42 @@ var _powerAssertRecorder = function () { function PowerAssertRecorder() { this.c
     _rec7 = new _powerAssertRecorder(),
     _rec8 = new _powerAssertRecorder();
 
-assert(_rec._expr(_rec._capt(!_rec._capt(truth, 'arguments/0/argument'), 'arguments/0'), {
-  content: 'assert(!truth)',
-  filepath: 'test/fixtures/UnaryExpression/fixture.js',
+assert(_rec._expr(_rec._capt(!_rec._capt(truth, "arguments/0/argument"), "arguments/0"), {
+  content: "assert(!truth)",
+  filepath: "test/fixtures/UnaryExpression/fixture.js",
   line: 3
 }));
-
-assert(_rec2._expr(_rec2._capt(!_rec2._capt(!_rec2._capt(some, 'arguments/0/argument/argument'), 'arguments/0/argument'), 'arguments/0'), {
-  content: 'assert(!!some)',
-  filepath: 'test/fixtures/UnaryExpression/fixture.js',
+assert(_rec2._expr(_rec2._capt(!_rec2._capt(!_rec2._capt(some, "arguments/0/argument/argument"), "arguments/0/argument"), "arguments/0"), {
+  content: "assert(!!some)",
+  filepath: "test/fixtures/UnaryExpression/fixture.js",
   line: 5
 }));
-
-assert(_rec3._expr(_rec3._capt(!_rec3._capt(!_rec3._capt(_rec3._capt(foo, 'arguments/0/argument/argument/object').bar, 'arguments/0/argument/argument'), 'arguments/0/argument'), 'arguments/0'), {
-  content: 'assert(!!foo.bar)',
-  filepath: 'test/fixtures/UnaryExpression/fixture.js',
+assert(_rec3._expr(_rec3._capt(!_rec3._capt(!_rec3._capt(_rec3._capt(foo, "arguments/0/argument/argument/object").bar, "arguments/0/argument/argument"), "arguments/0/argument"), "arguments/0"), {
+  content: "assert(!!foo.bar)",
+  filepath: "test/fixtures/UnaryExpression/fixture.js",
   line: 7
 }));
-
-assert(_rec4._expr(_rec4._capt(delete _rec4._capt(_rec4._capt(foo, 'arguments/0/argument/object').bar, 'arguments/0/argument'), 'arguments/0'), {
-  content: 'assert(delete foo.bar)',
-  filepath: 'test/fixtures/UnaryExpression/fixture.js',
+assert(_rec4._expr(_rec4._capt(delete _rec4._capt(_rec4._capt(foo, "arguments/0/argument/object").bar, "arguments/0/argument"), "arguments/0"), {
+  content: "assert(delete foo.bar)",
+  filepath: "test/fixtures/UnaryExpression/fixture.js",
   line: 9
 }));
-
-assert(_rec5._expr(_rec5._capt(_rec5._capt(typeof foo, 'arguments/0/left') !== 'undefined', 'arguments/0'), {
-  content: 'assert(typeof foo !== \'undefined\')',
-  filepath: 'test/fixtures/UnaryExpression/fixture.js',
+assert(_rec5._expr(_rec5._capt(_rec5._capt(typeof foo, "arguments/0/left") !== 'undefined', "arguments/0"), {
+  content: "assert(typeof foo !== 'undefined')",
+  filepath: "test/fixtures/UnaryExpression/fixture.js",
   line: 11
 }));
-
-assert(_rec6._expr(_rec6._capt(_rec6._capt(typeof _rec6._capt(_rec6._capt(foo, 'arguments/0/left/argument/object').bar, 'arguments/0/left/argument'), 'arguments/0/left') !== 'undefined', 'arguments/0'), {
-  content: 'assert(typeof foo.bar !== \'undefined\')',
-  filepath: 'test/fixtures/UnaryExpression/fixture.js',
+assert(_rec6._expr(_rec6._capt(_rec6._capt(typeof _rec6._capt(_rec6._capt(foo, "arguments/0/left/argument/object").bar, "arguments/0/left/argument"), "arguments/0/left") !== 'undefined', "arguments/0"), {
+  content: "assert(typeof foo.bar !== 'undefined')",
+  filepath: "test/fixtures/UnaryExpression/fixture.js",
   line: 13
 }));
-
-assert.strictEqual(_rec7._expr(_rec7._capt(typeof foo, 'arguments/0'), {
-  content: 'assert.strictEqual(typeof foo, typeof bar)',
-  filepath: 'test/fixtures/UnaryExpression/fixture.js',
+assert.strictEqual(_rec7._expr(_rec7._capt(typeof foo, "arguments/0"), {
+  content: "assert.strictEqual(typeof foo, typeof bar)",
+  filepath: "test/fixtures/UnaryExpression/fixture.js",
   line: 15
-}), _rec8._expr(_rec8._capt(typeof bar, 'arguments/1'), {
-  content: 'assert.strictEqual(typeof foo, typeof bar)',
-  filepath: 'test/fixtures/UnaryExpression/fixture.js',
+}), _rec8._expr(_rec8._capt(typeof bar, "arguments/1"), {
+  content: "assert.strictEqual(typeof foo, typeof bar)",
+  filepath: "test/fixtures/UnaryExpression/fixture.js",
   line: 15
 }));
diff --git a/test/fixtures/UpdateExpression/expected-presets-es2015.js b/test/fixtures/UpdateExpression/expected-presets-es2015.js
index f0c18b6..887a6f0 100644
--- a/test/fixtures/UpdateExpression/expected-presets-es2015.js
+++ b/test/fixtures/UpdateExpression/expected-presets-es2015.js
@@ -1,42 +1,40 @@
 'use strict';
 
-var _powerAssertVisitorKeys = '{"ArrayExpression":["elements"],"AssignmentExpression":["left","right"],"BinaryExpression":["left","right"],"Directive":["value"],"DirectiveLiteral":[],"BlockStatement":["directives","body"],"BreakStatement":["label"],"CallExpression":["callee","arguments"],"CatchClause":["param","body"],"ConditionalExpression":["test","consequent","alternate"],"ContinueStatement":["label"],"DebuggerStatement":[],"DoWhileStatement":["test","body"],"EmptyStatement":[],"ExpressionStatement":["expression"],"File":["program"],"ForInStatement":["left","right","body"],"ForStatement":["init","test","update","body"],"FunctionDeclaration":["id","params","body","returnType","typeParameters"],"FunctionExpression":["id","params","body","returnType","typeParameters"],"Identifier":["typeAnnotation"],"IfStatement":["test","consequent","alternate"],"LabeledStatement":["label","body"],"StringLiteral":[],"NumericLiteral":[],"NullLiteral":[],"BooleanLiteral":[],"RegExpLiteral":[],"LogicalExpression":["left","right"],"MemberExpression":["object","property"],"NewExpression":["callee","arguments"],"Program":["directives","body"],"ObjectExpression":["properties"],"ObjectMethod":["key","params","body","decorators","returnType","typeParameters"],"ObjectProperty":["key","value","decorators"],"RestElement":["argument","typeAnnotation"],"ReturnStatement":["argument"],"SequenceExpression":["expressions"],"SwitchCase":["test","consequent"],"SwitchStatement":["discriminant","cases"],"ThisExpression":[],"ThrowStatement":["argument"],"TryStatement":["block","handler","finalizer"],"UnaryExpression":["argument"],"UpdateExpression":["argument"],"VariableDeclaration":["declarations"],"VariableDeclarator":["id","init"],"WhileStatement":["test","body"],"WithStatement":["object","body"],"AssignmentPattern":["left","right"],"ArrayPattern":["elements","typeAnnotation"],"ArrowFunctionExpression":["params","body","returnType","typeParameters"],"ClassBody":["body"],"ClassDeclaration":["id","body","superClass","mixins","typeParameters","superTypeParameters","implements","decorators"],"ClassExpression":["id","body","superClass","mixins","typeParameters","superTypeParameters","implements","decorators"],"ExportAllDeclaration":["source"],"ExportDefaultDeclaration":["declaration"],"ExportNamedDeclaration":["declaration","specifiers","source"],"ExportSpecifier":["local","exported"],"ForOfStatement":["left","right","body"],"ImportDeclaration":["specifiers","source"],"ImportDefaultSpecifier":["local"],"ImportNamespaceSpecifier":["local"],"ImportSpecifier":["local","imported"],"MetaProperty":["meta","property"],"ClassMethod":["key","params","body","decorators","returnType","typeParameters"],"ObjectPattern":["properties","typeAnnotation"],"SpreadElement":["argument"],"Super":[],"TaggedTemplateExpression":["tag","quasi"],"TemplateElement":[],"TemplateLiteral":["quasis","expressions"],"YieldExpression":["argument"],"AnyTypeAnnotation":[],"ArrayTypeAnnotation":["elementType"],"BooleanTypeAnnotation":[],"BooleanLiteralTypeAnnotation":[],"NullLiteralTypeAnnotation":[],"ClassImplements":["id","typeParameters"],"ClassProperty":["key","value","typeAnnotation","decorators"],"DeclareClass":["id","typeParameters","extends","body"],"DeclareFunction":["id"],"DeclareInterface":["id","typeParameters","extends","body"],"DeclareModule":["id","body"],"DeclareModuleExports":["typeAnnotation"],"DeclareTypeAlias":["id","typeParameters","right"],"DeclareOpaqueType":["id","typeParameters","supertype"],"DeclareVariable":["id"],"DeclareExportDeclaration":["declaration","specifiers","source"],"ExistentialTypeParam":[],"FunctionTypeAnnotation":["typeParameters","params","rest","returnType"],"FunctionTypeParam":["name","typeAnnotation"],"GenericTypeAnnotation":["id","typeParameters"],"InterfaceExtends":["id","typeParameters"],"InterfaceDeclaration":["id","typeParameters","extends","body"],"IntersectionTypeAnnotation":["types"],"MixedTypeAnnotation":[],"EmptyTypeAnnotation":[],"NullableTypeAnnotation":["typeAnnotation"],"NumericLiteralTypeAnnotation":[],"NumberTypeAnnotation":[],"StringLiteralTypeAnnotation":[],"StringTypeAnnotation":[],"ThisTypeAnnotation":[],"TupleTypeAnnotation":["types"],"TypeofTypeAnnotation":["argument"],"TypeAlias":["id","typeParameters","right"],"OpaqueType":["id","typeParameters","impltype","supertype"],"TypeAnnotation":["typeAnnotation"],"TypeCastExpression":["expression","typeAnnotation"],"TypeParameter":["bound"],"TypeParameterDeclaration":["params"],"TypeParameterInstantiation":["params"],"ObjectTypeAnnotation":["properties","indexers","callProperties"],"ObjectTypeCallProperty":["value"],"ObjectTypeIndexer":["id","key","value"],"ObjectTypeProperty":["key","value"],"ObjectTypeSpreadProperty":["argument"],"QualifiedTypeIdentifier":["id","qualification"],"UnionTypeAnnotation":["types"],"VoidTypeAnnotation":[],"JSXAttribute":["name","value"],"JSXClosingElement":["name"],"JSXElement":["openingElement","children","closingElement"],"JSXEmptyExpression":[],"JSXExpressionContainer":["expression"],"JSXSpreadChild":["expression"],"JSXIdentifier":[],"JSXMemberExpression":["object","property"],"JSXNamespacedName":["namespace","name"],"JSXOpeningElement":["name","attributes"],"JSXSpreadAttribute":["argument"],"JSXText":[],"Noop":[],"ParenthesizedExpression":["expression"],"AwaitExpression":["argument"],"ForAwaitStatement":["left","right","body"],"BindExpression":["object","callee"],"Import":[],"Decorator":["expression"],"DoExpression":["body"],"ExportDefaultSpecifier":["exported"],"ExportNamespaceSpecifier":["exported"],"RestProperty":["argument"],"SpreadProperty":["argument"]}',
+var _powerAssertVisitorKeys = "{\"ArrayExpression\":[\"elements\"],\"AssignmentExpression\":[\"left\",\"right\"],\"BinaryExpression\":[\"left\",\"right\"],\"Directive\":[\"value\"],\"DirectiveLiteral\":[],\"BlockStatement\":[\"directives\",\"body\"],\"BreakStatement\":[\"label\"],\"CallExpression\":[\"callee\",\"arguments\",\"typeParameters\"],\"CatchClause\":[\"param\",\"body\"],\"ConditionalExpression\":[\"test\",\"consequent\",\"alternate\"],\"ContinueStatement\":[\"label\"],\"DebuggerStatement\":[],\"DoWhileStatement\":[\"test\",\"body\"],\"EmptyStatement\":[],\"ExpressionStatement\":[\"expression\"],\"File\":[\"program\"],\"ForInStatement\":[\"left\",\"right\",\"body\"],\"ForStatement\":[\"init\",\"test\",\"update\",\"body\"],\"FunctionDeclaration\":[\"id\",\"params\",\"body\",\"returnType\",\"typeParameters\"],\"FunctionExpression\":[\"id\",\"params\",\"body\",\"returnType\",\"typeParameters\"],\"Identifier\":[\"typeAnnotation\"],\"IfStatement\":[\"test\",\"consequent\",\"alternate\"],\"LabeledStatement\":[\"label\",\"body\"],\"StringLiteral\":[],\"NumericLiteral\":[],\"NullLiteral\":[],\"BooleanLiteral\":[],\"RegExpLiteral\":[],\"LogicalExpression\":[\"left\",\"right\"],\"MemberExpression\":[\"object\",\"property\"],\"NewExpression\":[\"callee\",\"arguments\",\"typeParameters\"],\"Program\":[\"directives\",\"body\"],\"ObjectExpression\":[\"properties\"],\"ObjectMethod\":[\"key\",\"params\",\"body\",\"decorators\",\"returnType\",\"typeParameters\"],\"ObjectProperty\":[\"key\",\"value\",\"decorators\"],\"RestElement\":[\"argument\",\"typeAnnotation\"],\"ReturnStatement\":[\"argument\"],\"SequenceExpression\":[\"expressions\"],\"SwitchCase\":[\"test\",\"consequent\"],\"SwitchStatement\":[\"discriminant\",\"cases\"],\"ThisExpression\":[],\"ThrowStatement\":[\"argument\"],\"TryStatement\":[\"block\",\"handler\",\"finalizer\"],\"UnaryExpression\":[\"argument\"],\"UpdateExpression\":[\"argument\"],\"VariableDeclaration\":[\"declarations\"],\"VariableDeclarator\":[\"id\",\"init\"],\"WhileStatement\":[\"test\",\"body\"],\"WithStatement\":[\"object\",\"body\"],\"AssignmentPattern\":[\"left\",\"right\"],\"ArrayPattern\":[\"elements\",\"typeAnnotation\"],\"ArrowFunctionExpression\":[\"params\",\"body\",\"returnType\",\"typeParameters\"],\"ClassBody\":[\"body\"],\"ClassDeclaration\":[\"id\",\"body\",\"superClass\",\"mixins\",\"typeParameters\",\"superTypeParameters\",\"implements\",\"decorators\"],\"ClassExpression\":[\"id\",\"body\",\"superClass\",\"mixins\",\"typeParameters\",\"superTypeParameters\",\"implements\",\"decorators\"],\"ExportAllDeclaration\":[\"source\"],\"ExportDefaultDeclaration\":[\"declaration\"],\"ExportNamedDeclaration\":[\"declaration\",\"specifiers\",\"source\"],\"ExportSpecifier\":[\"local\",\"exported\"],\"ForOfStatement\":[\"left\",\"right\",\"body\"],\"ImportDeclaration\":[\"specifiers\",\"source\"],\"ImportDefaultSpecifier\":[\"local\"],\"ImportNamespaceSpecifier\":[\"local\"],\"ImportSpecifier\":[\"local\",\"imported\"],\"MetaProperty\":[\"meta\",\"property\"],\"ClassMethod\":[\"key\",\"params\",\"body\",\"decorators\",\"returnType\",\"typeParameters\"],\"ObjectPattern\":[\"properties\",\"typeAnnotation\"],\"SpreadElement\":[\"argument\"],\"Super\":[],\"TaggedTemplateExpression\":[\"tag\",\"quasi\"],\"TemplateElement\":[],\"TemplateLiteral\":[\"quasis\",\"expressions\"],\"YieldExpression\":[\"argument\"],\"AnyTypeAnnotation\":[],\"ArrayTypeAnnotation\":[\"elementType\"],\"BooleanTypeAnnotation\":[],\"BooleanLiteralTypeAnnotation\":[],\"NullLiteralTypeAnnotation\":[],\"ClassImplements\":[\"id\",\"typeParameters\"],\"DeclareClass\":[\"id\",\"typeParameters\",\"extends\",\"body\"],\"DeclareFunction\":[\"id\"],\"DeclareInterface\":[\"id\",\"typeParameters\",\"extends\",\"body\"],\"DeclareModule\":[\"id\",\"body\"],\"DeclareModuleExports\":[\"typeAnnotation\"],\"DeclareTypeAlias\":[\"id\",\"typeParameters\",\"right\"],\"DeclareOpaqueType\":[\"id\",\"typeParameters\",\"supertype\"],\"DeclareVariable\":[\"id\"],\"DeclareExportDeclaration\":[\"declaration\",\"specifiers\",\"source\"],\"DeclareExportAllDeclaration\":[\"source\"],\"DeclaredPredicate\":[\"value\"],\"ExistsTypeAnnotation\":[],\"FunctionTypeAnnotation\":[\"typeParameters\",\"params\",\"rest\",\"returnType\"],\"FunctionTypeParam\":[\"name\",\"typeAnnotation\"],\"GenericTypeAnnotation\":[\"id\",\"typeParameters\"],\"InferredPredicate\":[],\"InterfaceExtends\":[\"id\",\"typeParameters\"],\"InterfaceDeclaration\":[\"id\",\"typeParameters\",\"extends\",\"body\"],\"IntersectionTypeAnnotation\":[\"types\"],\"MixedTypeAnnotation\":[],\"EmptyTypeAnnotation\":[],\"NullableTypeAnnotation\":[\"typeAnnotation\"],\"NumberLiteralTypeAnnotation\":[],\"NumberTypeAnnotation\":[],\"ObjectTypeAnnotation\":[\"properties\",\"indexers\",\"callProperties\"],\"ObjectTypeCallProperty\":[\"value\"],\"ObjectTypeIndexer\":[\"id\",\"key\",\"value\"],\"ObjectTypeProperty\":[\"key\",\"value\"],\"ObjectTypeSpreadProperty\":[\"argument\"],\"OpaqueType\":[\"id\",\"typeParameters\",\"supertype\",\"impltype\"],\"QualifiedTypeIdentifier\":[\"id\",\"qualification\"],\"StringLiteralTypeAnnotation\":[],\"StringTypeAnnotation\":[],\"ThisTypeAnnotation\":[],\"TupleTypeAnnotation\":[\"types\"],\"TypeofTypeAnnotation\":[\"argument\"],\"TypeAlias\":[\"id\",\"typeParameters\",\"right\"],\"TypeAnnotation\":[\"typeAnnotation\"],\"TypeCastExpression\":[\"expression\",\"typeAnnotation\"],\"TypeParameter\":[\"bound\",\"default\"],\"TypeParameterDeclaration\":[\"params\"],\"TypeParameterInstantiation\":[\"params\"],\"UnionTypeAnnotation\":[\"types\"],\"VoidTypeAnnotation\":[],\"JSXAttribute\":[\"name\",\"value\"],\"JSXClosingElement\":[\"name\"],\"JSXElement\":[\"openingElement\",\"children\",\"closingElement\"],\"JSXEmptyExpression\":[],\"JSXExpressionContainer\":[\"expression\"],\"JSXSpreadChild\":[\"expression\"],\"JSXIdentifier\":[],\"JSXMemberExpression\":[\"object\",\"property\"],\"JSXNamespacedName\":[\"namespace\",\"name\"],\"JSXOpeningElement\":[\"name\",\"attributes\"],\"JSXSpreadAttribute\":[\"argument\"],\"JSXText\":[],\"JSXFragment\":[\"openingFragment\",\"children\",\"closingFragment\"],\"JSXOpeningFragment\":[],\"JSXClosingFragment\":[],\"Noop\":[],\"ParenthesizedExpression\":[\"expression\"],\"AwaitExpression\":[\"argument\"],\"BindExpression\":[\"object\",\"callee\"],\"ClassProperty\":[\"key\",\"value\",\"typeAnnotation\",\"decorators\"],\"Import\":[],\"Decorator\":[\"expression\"],\"DoExpression\":[\"body\"],\"ExportDefaultSpecifier\":[\"exported\"],\"ExportNamespaceSpecifier\":[\"exported\"],\"TSParameterProperty\":[\"parameter\"],\"TSDeclareFunction\":[\"id\",\"typeParameters\",\"params\",\"returnType\"],\"TSDeclareMethod\":[\"decorators\",\"key\",\"typeParameters\",\"params\",\"returnType\"],\"TSQualifiedName\":[\"left\",\"right\"],\"TSCallSignatureDeclaration\":[\"typeParameters\",\"parameters\",\"typeAnnotation\"],\"TSConstructSignatureDeclaration\":[\"typeParameters\",\"parameters\",\"typeAnnotation\"],\"TSPropertySignature\":[\"key\",\"typeAnnotation\",\"initializer\"],\"TSMethodSignature\":[\"key\",\"typeParameters\",\"parameters\",\"typeAnnotation\"],\"TSIndexSignature\":[\"parameters\",\"typeAnnotation\"],\"TSAnyKeyword\":[],\"TSNumberKeyword\":[],\"TSObjectKeyword\":[],\"TSBooleanKeyword\":[],\"TSStringKeyword\":[],\"TSSymbolKeyword\":[],\"TSVoidKeyword\":[],\"TSUndefinedKeyword\":[],\"TSNullKeyword\":[],\"TSNeverKeyword\":[],\"TSThisType\":[],\"TSFunctionType\":[\"typeParameters\",\"typeAnnotation\"],\"TSConstructorType\":[\"typeParameters\",\"typeAnnotation\"],\"TSTypeReference\":[\"typeName\",\"typeParameters\"],\"TSTypePredicate\":[\"parameterName\",\"typeAnnotation\"],\"TSTypeQuery\":[\"exprName\"],\"TSTypeLiteral\":[\"members\"],\"TSArrayType\":[\"elementType\"],\"TSTupleType\":[\"elementTypes\"],\"TSUnionType\":[\"types\"],\"TSIntersectionType\":[\"types\"],\"TSParenthesizedType\":[\"typeAnnotation\"],\"TSTypeOperator\":[\"typeAnnotation\"],\"TSIndexedAccessType\":[\"objectType\",\"indexType\"],\"TSMappedType\":[\"typeParameter\",\"typeAnnotation\"],\"TSLiteralType\":[\"literal\"],\"TSExpressionWithTypeArguments\":[\"expression\",\"typeParameters\"],\"TSInterfaceDeclaration\":[\"id\",\"typeParameters\",\"extends\",\"body\"],\"TSInterfaceBody\":[\"body\"],\"TSTypeAliasDeclaration\":[\"id\",\"typeParameters\",\"typeAnnotation\"],\"TSAsExpression\":[\"expression\",\"typeAnnotation\"],\"TSTypeAssertion\":[\"typeAnnotation\",\"expression\"],\"TSEnumDeclaration\":[\"id\",\"members\"],\"TSEnumMember\":[\"id\",\"initializer\"],\"TSModuleDeclaration\":[\"id\",\"body\"],\"TSModuleBlock\":[\"body\"],\"TSImportEqualsDeclaration\":[\"id\",\"moduleReference\"],\"TSExternalModuleReference\":[\"expression\"],\"TSNonNullExpression\":[\"expression\"],\"TSExportAssignment\":[\"expression\"],\"TSNamespaceExportDeclaration\":[\"id\"],\"TSTypeAnnotation\":[\"typeAnnotation\"],\"TSTypeParameterInstantiation\":[\"params\"],\"TSTypeParameterDeclaration\":[\"params\"],\"TSTypeParameter\":[\"constraint\",\"default\"]}",
     _powerAssertRecorder = function () { function PowerAssertRecorder() { this.captured = []; } PowerAssertRecorder.prototype._capt = function _capt(value, espath) { this.captured.push({ value: value, espath: espath }); return value; }; PowerAssertRecorder.prototype._expr = function _expr(value, source) { var capturedValues = this.captured; this.captured = []; return { powerAssertContext: { value: value, events: capturedValues }, source: source }; }; return PowerAssertRecorder; }(),
     _rec = new _powerAssertRecorder(),
     _rec2 = new _powerAssertRecorder(),
     _rec3 = new _powerAssertRecorder(),
     _rec4 = new _powerAssertRecorder();
 
-assert(_rec._expr(_rec._capt(++foo, 'arguments/0'), {
-  content: 'assert(++foo)',
-  filepath: 'test/fixtures/UpdateExpression/fixture.js',
+assert(_rec._expr(_rec._capt(++foo, "arguments/0"), {
+  content: "assert(++foo)",
+  filepath: "test/fixtures/UpdateExpression/fixture.js",
   line: 3,
-  ast: '{"type":"CallExpression","callee":{"type":"Identifier","name":"assert","range":[0,6]},"arguments":[{"type":"UpdateExpression","operator":"++","argument":{"type":"Identifier","name":"foo","range":[9,12]},"prefix":true,"range":[7,12]}],"range":[0,13]}',
-  tokens: '[{"type":{"label":"name"},"value":"assert","range":[0,6]},{"type":{"label":"("},"range":[6,7]},{"type":{"label":"++/--"},"value":"++","range":[7,9]},{"type":{"label":"name"},"value":"foo","range":[9,12]},{"type":{"label":")"},"range":[12,13]}]',
+  ast: "{\"type\":\"CallExpression\",\"callee\":{\"type\":\"Identifier\",\"name\":\"assert\",\"range\":[0,6]},\"arguments\":[{\"type\":\"UpdateExpression\",\"operator\":\"++\",\"argument\":{\"type\":\"Identifier\",\"name\":\"foo\",\"range\":[9,12]},\"prefix\":true,\"range\":[7,12]}],\"range\":[0,13]}",
+  tokens: "[{\"type\":{\"label\":\"name\"},\"value\":\"assert\",\"range\":[0,6]},{\"type\":{\"label\":\"(\"},\"range\":[6,7]},{\"type\":{\"label\":\"++/--\"},\"value\":\"++\",\"range\":[7,9]},{\"type\":{\"label\":\"name\"},\"value\":\"foo\",\"range\":[9,12]},{\"type\":{\"label\":\")\"},\"range\":[12,13]}]",
   visitorKeys: _powerAssertVisitorKeys
 }));
-
-assert(_rec2._expr(_rec2._capt(bar--, 'arguments/0'), {
-  content: 'assert(bar--)',
-  filepath: 'test/fixtures/UpdateExpression/fixture.js',
+assert(_rec2._expr(_rec2._capt(bar--, "arguments/0"), {
+  content: "assert(bar--)",
+  filepath: "test/fixtures/UpdateExpression/fixture.js",
   line: 5,
-  ast: '{"type":"CallExpression","callee":{"type":"Identifier","name":"assert","range":[0,6]},"arguments":[{"type":"UpdateExpression","operator":"--","argument":{"type":"Identifier","name":"bar","range":[7,10]},"prefix":false,"range":[7,12]}],"range":[0,13]}',
-  tokens: '[{"type":{"label":"name"},"value":"assert","range":[0,6]},{"type":{"label":"("},"range":[6,7]},{"type":{"label":"name"},"value":"bar","range":[7,10]},{"type":{"label":"++/--"},"value":"--","range":[10,12]},{"type":{"label":")"},"range":[12,13]}]',
+  ast: "{\"type\":\"CallExpression\",\"callee\":{\"type\":\"Identifier\",\"name\":\"assert\",\"range\":[0,6]},\"arguments\":[{\"type\":\"UpdateExpression\",\"operator\":\"--\",\"argument\":{\"type\":\"Identifier\",\"name\":\"bar\",\"range\":[7,10]},\"prefix\":false,\"range\":[7,12]}],\"range\":[0,13]}",
+  tokens: "[{\"type\":{\"label\":\"name\"},\"value\":\"assert\",\"range\":[0,6]},{\"type\":{\"label\":\"(\"},\"range\":[6,7]},{\"type\":{\"label\":\"name\"},\"value\":\"bar\",\"range\":[7,10]},{\"type\":{\"label\":\"++/--\"},\"value\":\"--\",\"range\":[10,12]},{\"type\":{\"label\":\")\"},\"range\":[12,13]}]",
   visitorKeys: _powerAssertVisitorKeys
 }));
-
-assert.strictEqual(_rec3._expr(_rec3._capt(++foo, 'arguments/0'), {
-  content: 'assert.strictEqual(++foo, bar--)',
-  filepath: 'test/fixtures/UpdateExpression/fixture.js',
+assert.strictEqual(_rec3._expr(_rec3._capt(++foo, "arguments/0"), {
+  content: "assert.strictEqual(++foo, bar--)",
+  filepath: "test/fixtures/UpdateExpression/fixture.js",
   line: 7,
-  ast: '{"type":"CallExpression","callee":{"type":"MemberExpression","object":{"type":"Identifier","name":"assert","range":[0,6]},"property":{"type":"Identifier","name":"strictEqual","range":[7,18]},"computed":false,"range":[0,18]},"arguments":[{"type":"UpdateExpression","operator":"++","argument":{"type":"Identifier","name":"foo","range":[21,24]},"prefix":true,"range":[19,24]},{"type":"UpdateExpression","operator":"--","argument":{"type":"Identifier","name":"bar","range":[26,29]},"prefix":false,"range":[26,31]}],"range":[0,32]}',
-  tokens: '[{"type":{"label":"name"},"value":"assert","range":[0,6]},{"type":{"label":"."},"range":[6,7]},{"type":{"label":"name"},"value":"strictEqual","range":[7,18]},{"type":{"label":"("},"range":[18,19]},{"type":{"label":"++/--"},"value":"++","range":[19,21]},{"type":{"label":"name"},"value":"foo","range":[21,24]},{"type":{"label":","},"range":[24,25]},{"type":{"label":"name"},"value":"bar","range":[26,29]},{"type":{"label":"++/--"},"value":"--","range":[29,31]},{"type":{"label":")"},"range":[31,32]}]',
+  ast: "{\"type\":\"CallExpression\",\"callee\":{\"type\":\"MemberExpression\",\"object\":{\"type\":\"Identifier\",\"name\":\"assert\",\"range\":[0,6]},\"property\":{\"type\":\"Identifier\",\"name\":\"strictEqual\",\"range\":[7,18]},\"computed\":false,\"range\":[0,18]},\"arguments\":[{\"type\":\"UpdateExpression\",\"operator\":\"++\",\"argument\":{\"type\":\"Identifier\",\"name\":\"foo\",\"range\":[21,24]},\"prefix\":true,\"range\":[19,24]},{\"type\":\"UpdateExpression\",\"operator\":\"--\",\"argument\":{\"type\":\"Identifier\",\"name\":\"bar\",\"range\":[26,29]},\"prefix\":false,\"range\":[26,31]}],\"range\":[0,32]}",
+  tokens: "[{\"type\":{\"label\":\"name\"},\"value\":\"assert\",\"range\":[0,6]},{\"type\":{\"label\":\".\"},\"range\":[6,7]},{\"type\":{\"label\":\"name\"},\"value\":\"strictEqual\",\"range\":[7,18]},{\"type\":{\"label\":\"(\"},\"range\":[18,19]},{\"type\":{\"label\":\"++/--\"},\"value\":\"++\",\"range\":[19,21]},{\"type\":{\"label\":\"name\"},\"value\":\"foo\",\"range\":[21,24]},{\"type\":{\"label\":\",\"},\"range\":[24,25]},{\"type\":{\"label\":\"name\"},\"value\":\"bar\",\"range\":[26,29]},{\"type\":{\"label\":\"++/--\"},\"value\":\"--\",\"range\":[29,31]},{\"type\":{\"label\":\")\"},\"range\":[31,32]}]",
   visitorKeys: _powerAssertVisitorKeys
-}), _rec4._expr(_rec4._capt(bar--, 'arguments/1'), {
-  content: 'assert.strictEqual(++foo, bar--)',
-  filepath: 'test/fixtures/UpdateExpression/fixture.js',
+}), _rec4._expr(_rec4._capt(bar--, "arguments/1"), {
+  content: "assert.strictEqual(++foo, bar--)",
+  filepath: "test/fixtures/UpdateExpression/fixture.js",
   line: 7,
-  ast: '{"type":"CallExpression","callee":{"type":"MemberExpression","object":{"type":"Identifier","name":"assert","range":[0,6]},"property":{"type":"Identifier","name":"strictEqual","range":[7,18]},"computed":false,"range":[0,18]},"arguments":[{"type":"UpdateExpression","operator":"++","argument":{"type":"Identifier","name":"foo","range":[21,24]},"prefix":true,"range":[19,24]},{"type":"UpdateExpression","operator":"--","argument":{"type":"Identifier","name":"bar","range":[26,29]},"prefix":false,"range":[26,31]}],"range":[0,32]}',
-  tokens: '[{"type":{"label":"name"},"value":"assert","range":[0,6]},{"type":{"label":"."},"range":[6,7]},{"type":{"label":"name"},"value":"strictEqual","range":[7,18]},{"type":{"label":"("},"range":[18,19]},{"type":{"label":"++/--"},"value":"++","range":[19,21]},{"type":{"label":"name"},"value":"foo","range":[21,24]},{"type":{"label":","},"range":[24,25]},{"type":{"label":"name"},"value":"bar","range":[26,29]},{"type":{"label":"++/--"},"value":"--","range":[29,31]},{"type":{"label":")"},"range":[31,32]}]',
+  ast: "{\"type\":\"CallExpression\",\"callee\":{\"type\":\"MemberExpression\",\"object\":{\"type\":\"Identifier\",\"name\":\"assert\",\"range\":[0,6]},\"property\":{\"type\":\"Identifier\",\"name\":\"strictEqual\",\"range\":[7,18]},\"computed\":false,\"range\":[0,18]},\"arguments\":[{\"type\":\"UpdateExpression\",\"operator\":\"++\",\"argument\":{\"type\":\"Identifier\",\"name\":\"foo\",\"range\":[21,24]},\"prefix\":true,\"range\":[19,24]},{\"type\":\"UpdateExpression\",\"operator\":\"--\",\"argument\":{\"type\":\"Identifier\",\"name\":\"bar\",\"range\":[26,29]},\"prefix\":false,\"range\":[26,31]}],\"range\":[0,32]}",
+  tokens: "[{\"type\":{\"label\":\"name\"},\"value\":\"assert\",\"range\":[0,6]},{\"type\":{\"label\":\".\"},\"range\":[6,7]},{\"type\":{\"label\":\"name\"},\"value\":\"strictEqual\",\"range\":[7,18]},{\"type\":{\"label\":\"(\"},\"range\":[18,19]},{\"type\":{\"label\":\"++/--\"},\"value\":\"++\",\"range\":[19,21]},{\"type\":{\"label\":\"name\"},\"value\":\"foo\",\"range\":[21,24]},{\"type\":{\"label\":\",\"},\"range\":[24,25]},{\"type\":{\"label\":\"name\"},\"value\":\"bar\",\"range\":[26,29]},{\"type\":{\"label\":\"++/--\"},\"value\":\"--\",\"range\":[29,31]},{\"type\":{\"label\":\")\"},\"range\":[31,32]}]",
   visitorKeys: _powerAssertVisitorKeys
 }));
diff --git a/test/fixtures/UpdateExpression/expected.js b/test/fixtures/UpdateExpression/expected.js
index 9a90798..a7e1390 100644
--- a/test/fixtures/UpdateExpression/expected.js
+++ b/test/fixtures/UpdateExpression/expected.js
@@ -6,24 +6,22 @@ var _powerAssertRecorder = function () { function PowerAssertRecorder() { this.c
     _rec3 = new _powerAssertRecorder(),
     _rec4 = new _powerAssertRecorder();
 
-assert(_rec._expr(_rec._capt(++foo, 'arguments/0'), {
-  content: 'assert(++foo)',
-  filepath: 'test/fixtures/UpdateExpression/fixture.js',
+assert(_rec._expr(_rec._capt(++foo, "arguments/0"), {
+  content: "assert(++foo)",
+  filepath: "test/fixtures/UpdateExpression/fixture.js",
   line: 3
 }));
-
-assert(_rec2._expr(_rec2._capt(bar--, 'arguments/0'), {
-  content: 'assert(bar--)',
-  filepath: 'test/fixtures/UpdateExpression/fixture.js',
+assert(_rec2._expr(_rec2._capt(bar--, "arguments/0"), {
+  content: "assert(bar--)",
+  filepath: "test/fixtures/UpdateExpression/fixture.js",
   line: 5
 }));
-
-assert.strictEqual(_rec3._expr(_rec3._capt(++foo, 'arguments/0'), {
-  content: 'assert.strictEqual(++foo, bar--)',
-  filepath: 'test/fixtures/UpdateExpression/fixture.js',
+assert.strictEqual(_rec3._expr(_rec3._capt(++foo, "arguments/0"), {
+  content: "assert.strictEqual(++foo, bar--)",
+  filepath: "test/fixtures/UpdateExpression/fixture.js",
   line: 7
-}), _rec4._expr(_rec4._capt(bar--, 'arguments/1'), {
-  content: 'assert.strictEqual(++foo, bar--)',
-  filepath: 'test/fixtures/UpdateExpression/fixture.js',
+}), _rec4._expr(_rec4._capt(bar--, "arguments/1"), {
+  content: "assert.strictEqual(++foo, bar--)",
+  filepath: "test/fixtures/UpdateExpression/fixture.js",
   line: 7
 }));
diff --git a/test/fixtures/YieldExpression/expected-presets-es2015.js b/test/fixtures/YieldExpression/expected-presets-es2015.js
index 0044d68..0bc55dc 100644
--- a/test/fixtures/YieldExpression/expected-presets-es2015.js
+++ b/test/fixtures/YieldExpression/expected-presets-es2015.js
@@ -1,9 +1,11 @@
 'use strict';
 
-var _powerAssertVisitorKeys = '{"ArrayExpression":["elements"],"AssignmentExpression":["left","right"],"BinaryExpression":["left","right"],"Directive":["value"],"DirectiveLiteral":[],"BlockStatement":["directives","body"],"BreakStatement":["label"],"CallExpression":["callee","arguments"],"CatchClause":["param","body"],"ConditionalExpression":["test","consequent","alternate"],"ContinueStatement":["label"],"DebuggerStatement":[],"DoWhileStatement":["test","body"],"EmptyStatement":[],"ExpressionStatement":["expression"],"File":["program"],"ForInStatement":["left","right","body"],"ForStatement":["init","test","update","body"],"FunctionDeclaration":["id","params","body","returnType","typeParameters"],"FunctionExpression":["id","params","body","returnType","typeParameters"],"Identifier":["typeAnnotation"],"IfStatement":["test","consequent","alternate"],"LabeledStatement":["label","body"],"StringLiteral":[],"NumericLiteral":[],"NullLiteral":[],"BooleanLiteral":[],"RegExpLiteral":[],"LogicalExpression":["left","right"],"MemberExpression":["object","property"],"NewExpression":["callee","arguments"],"Program":["directives","body"],"ObjectExpression":["properties"],"ObjectMethod":["key","params","body","decorators","returnType","typeParameters"],"ObjectProperty":["key","value","decorators"],"RestElement":["argument","typeAnnotation"],"ReturnStatement":["argument"],"SequenceExpression":["expressions"],"SwitchCase":["test","consequent"],"SwitchStatement":["discriminant","cases"],"ThisExpression":[],"ThrowStatement":["argument"],"TryStatement":["block","handler","finalizer"],"UnaryExpression":["argument"],"UpdateExpression":["argument"],"VariableDeclaration":["declarations"],"VariableDeclarator":["id","init"],"WhileStatement":["test","body"],"WithStatement":["object","body"],"AssignmentPattern":["left","right"],"ArrayPattern":["elements","typeAnnotation"],"ArrowFunctionExpression":["params","body","returnType","typeParameters"],"ClassBody":["body"],"ClassDeclaration":["id","body","superClass","mixins","typeParameters","superTypeParameters","implements","decorators"],"ClassExpression":["id","body","superClass","mixins","typeParameters","superTypeParameters","implements","decorators"],"ExportAllDeclaration":["source"],"ExportDefaultDeclaration":["declaration"],"ExportNamedDeclaration":["declaration","specifiers","source"],"ExportSpecifier":["local","exported"],"ForOfStatement":["left","right","body"],"ImportDeclaration":["specifiers","source"],"ImportDefaultSpecifier":["local"],"ImportNamespaceSpecifier":["local"],"ImportSpecifier":["local","imported"],"MetaProperty":["meta","property"],"ClassMethod":["key","params","body","decorators","returnType","typeParameters"],"ObjectPattern":["properties","typeAnnotation"],"SpreadElement":["argument"],"Super":[],"TaggedTemplateExpression":["tag","quasi"],"TemplateElement":[],"TemplateLiteral":["quasis","expressions"],"YieldExpression":["argument"],"AnyTypeAnnotation":[],"ArrayTypeAnnotation":["elementType"],"BooleanTypeAnnotation":[],"BooleanLiteralTypeAnnotation":[],"NullLiteralTypeAnnotation":[],"ClassImplements":["id","typeParameters"],"ClassProperty":["key","value","typeAnnotation","decorators"],"DeclareClass":["id","typeParameters","extends","body"],"DeclareFunction":["id"],"DeclareInterface":["id","typeParameters","extends","body"],"DeclareModule":["id","body"],"DeclareModuleExports":["typeAnnotation"],"DeclareTypeAlias":["id","typeParameters","right"],"DeclareOpaqueType":["id","typeParameters","supertype"],"DeclareVariable":["id"],"DeclareExportDeclaration":["declaration","specifiers","source"],"ExistentialTypeParam":[],"FunctionTypeAnnotation":["typeParameters","params","rest","returnType"],"FunctionTypeParam":["name","typeAnnotation"],"GenericTypeAnnotation":["id","typeParameters"],"InterfaceExtends":["id","typeParameters"],"InterfaceDeclaration":["id","typeParameters","extends","body"],"IntersectionTypeAnnotation":["types"],"MixedTypeAnnotation":[],"EmptyTypeAnnotation":[],"NullableTypeAnnotation":["typeAnnotation"],"NumericLiteralTypeAnnotation":[],"NumberTypeAnnotation":[],"StringLiteralTypeAnnotation":[],"StringTypeAnnotation":[],"ThisTypeAnnotation":[],"TupleTypeAnnotation":["types"],"TypeofTypeAnnotation":["argument"],"TypeAlias":["id","typeParameters","right"],"OpaqueType":["id","typeParameters","impltype","supertype"],"TypeAnnotation":["typeAnnotation"],"TypeCastExpression":["expression","typeAnnotation"],"TypeParameter":["bound"],"TypeParameterDeclaration":["params"],"TypeParameterInstantiation":["params"],"ObjectTypeAnnotation":["properties","indexers","callProperties"],"ObjectTypeCallProperty":["value"],"ObjectTypeIndexer":["id","key","value"],"ObjectTypeProperty":["key","value"],"ObjectTypeSpreadProperty":["argument"],"QualifiedTypeIdentifier":["id","qualification"],"UnionTypeAnnotation":["types"],"VoidTypeAnnotation":[],"JSXAttribute":["name","value"],"JSXClosingElement":["name"],"JSXElement":["openingElement","children","closingElement"],"JSXEmptyExpression":[],"JSXExpressionContainer":["expression"],"JSXSpreadChild":["expression"],"JSXIdentifier":[],"JSXMemberExpression":["object","property"],"JSXNamespacedName":["namespace","name"],"JSXOpeningElement":["name","attributes"],"JSXSpreadAttribute":["argument"],"JSXText":[],"Noop":[],"ParenthesizedExpression":["expression"],"AwaitExpression":["argument"],"ForAwaitStatement":["left","right","body"],"BindExpression":["object","callee"],"Import":[],"Decorator":["expression"],"DoExpression":["body"],"ExportDefaultSpecifier":["exported"],"ExportNamespaceSpecifier":["exported"],"RestProperty":["argument"],"SpreadProperty":["argument"]}',
+var _powerAssertVisitorKeys = "{\"ArrayExpression\":[\"elements\"],\"AssignmentExpression\":[\"left\",\"right\"],\"BinaryExpression\":[\"left\",\"right\"],\"Directive\":[\"value\"],\"DirectiveLiteral\":[],\"BlockStatement\":[\"directives\",\"body\"],\"BreakStatement\":[\"label\"],\"CallExpression\":[\"callee\",\"arguments\",\"typeParameters\"],\"CatchClause\":[\"param\",\"body\"],\"ConditionalExpression\":[\"test\",\"consequent\",\"alternate\"],\"ContinueStatement\":[\"label\"],\"DebuggerStatement\":[],\"DoWhileStatement\":[\"test\",\"body\"],\"EmptyStatement\":[],\"ExpressionStatement\":[\"expression\"],\"File\":[\"program\"],\"ForInStatement\":[\"left\",\"right\",\"body\"],\"ForStatement\":[\"init\",\"test\",\"update\",\"body\"],\"FunctionDeclaration\":[\"id\",\"params\",\"body\",\"returnType\",\"typeParameters\"],\"FunctionExpression\":[\"id\",\"params\",\"body\",\"returnType\",\"typeParameters\"],\"Identifier\":[\"typeAnnotation\"],\"IfStatement\":[\"test\",\"consequent\",\"alternate\"],\"LabeledStatement\":[\"label\",\"body\"],\"StringLiteral\":[],\"NumericLiteral\":[],\"NullLiteral\":[],\"BooleanLiteral\":[],\"RegExpLiteral\":[],\"LogicalExpression\":[\"left\",\"right\"],\"MemberExpression\":[\"object\",\"property\"],\"NewExpression\":[\"callee\",\"arguments\",\"typeParameters\"],\"Program\":[\"directives\",\"body\"],\"ObjectExpression\":[\"properties\"],\"ObjectMethod\":[\"key\",\"params\",\"body\",\"decorators\",\"returnType\",\"typeParameters\"],\"ObjectProperty\":[\"key\",\"value\",\"decorators\"],\"RestElement\":[\"argument\",\"typeAnnotation\"],\"ReturnStatement\":[\"argument\"],\"SequenceExpression\":[\"expressions\"],\"SwitchCase\":[\"test\",\"consequent\"],\"SwitchStatement\":[\"discriminant\",\"cases\"],\"ThisExpression\":[],\"ThrowStatement\":[\"argument\"],\"TryStatement\":[\"block\",\"handler\",\"finalizer\"],\"UnaryExpression\":[\"argument\"],\"UpdateExpression\":[\"argument\"],\"VariableDeclaration\":[\"declarations\"],\"VariableDeclarator\":[\"id\",\"init\"],\"WhileStatement\":[\"test\",\"body\"],\"WithStatement\":[\"object\",\"body\"],\"AssignmentPattern\":[\"left\",\"right\"],\"ArrayPattern\":[\"elements\",\"typeAnnotation\"],\"ArrowFunctionExpression\":[\"params\",\"body\",\"returnType\",\"typeParameters\"],\"ClassBody\":[\"body\"],\"ClassDeclaration\":[\"id\",\"body\",\"superClass\",\"mixins\",\"typeParameters\",\"superTypeParameters\",\"implements\",\"decorators\"],\"ClassExpression\":[\"id\",\"body\",\"superClass\",\"mixins\",\"typeParameters\",\"superTypeParameters\",\"implements\",\"decorators\"],\"ExportAllDeclaration\":[\"source\"],\"ExportDefaultDeclaration\":[\"declaration\"],\"ExportNamedDeclaration\":[\"declaration\",\"specifiers\",\"source\"],\"ExportSpecifier\":[\"local\",\"exported\"],\"ForOfStatement\":[\"left\",\"right\",\"body\"],\"ImportDeclaration\":[\"specifiers\",\"source\"],\"ImportDefaultSpecifier\":[\"local\"],\"ImportNamespaceSpecifier\":[\"local\"],\"ImportSpecifier\":[\"local\",\"imported\"],\"MetaProperty\":[\"meta\",\"property\"],\"ClassMethod\":[\"key\",\"params\",\"body\",\"decorators\",\"returnType\",\"typeParameters\"],\"ObjectPattern\":[\"properties\",\"typeAnnotation\"],\"SpreadElement\":[\"argument\"],\"Super\":[],\"TaggedTemplateExpression\":[\"tag\",\"quasi\"],\"TemplateElement\":[],\"TemplateLiteral\":[\"quasis\",\"expressions\"],\"YieldExpression\":[\"argument\"],\"AnyTypeAnnotation\":[],\"ArrayTypeAnnotation\":[\"elementType\"],\"BooleanTypeAnnotation\":[],\"BooleanLiteralTypeAnnotation\":[],\"NullLiteralTypeAnnotation\":[],\"ClassImplements\":[\"id\",\"typeParameters\"],\"DeclareClass\":[\"id\",\"typeParameters\",\"extends\",\"body\"],\"DeclareFunction\":[\"id\"],\"DeclareInterface\":[\"id\",\"typeParameters\",\"extends\",\"body\"],\"DeclareModule\":[\"id\",\"body\"],\"DeclareModuleExports\":[\"typeAnnotation\"],\"DeclareTypeAlias\":[\"id\",\"typeParameters\",\"right\"],\"DeclareOpaqueType\":[\"id\",\"typeParameters\",\"supertype\"],\"DeclareVariable\":[\"id\"],\"DeclareExportDeclaration\":[\"declaration\",\"specifiers\",\"source\"],\"DeclareExportAllDeclaration\":[\"source\"],\"DeclaredPredicate\":[\"value\"],\"ExistsTypeAnnotation\":[],\"FunctionTypeAnnotation\":[\"typeParameters\",\"params\",\"rest\",\"returnType\"],\"FunctionTypeParam\":[\"name\",\"typeAnnotation\"],\"GenericTypeAnnotation\":[\"id\",\"typeParameters\"],\"InferredPredicate\":[],\"InterfaceExtends\":[\"id\",\"typeParameters\"],\"InterfaceDeclaration\":[\"id\",\"typeParameters\",\"extends\",\"body\"],\"IntersectionTypeAnnotation\":[\"types\"],\"MixedTypeAnnotation\":[],\"EmptyTypeAnnotation\":[],\"NullableTypeAnnotation\":[\"typeAnnotation\"],\"NumberLiteralTypeAnnotation\":[],\"NumberTypeAnnotation\":[],\"ObjectTypeAnnotation\":[\"properties\",\"indexers\",\"callProperties\"],\"ObjectTypeCallProperty\":[\"value\"],\"ObjectTypeIndexer\":[\"id\",\"key\",\"value\"],\"ObjectTypeProperty\":[\"key\",\"value\"],\"ObjectTypeSpreadProperty\":[\"argument\"],\"OpaqueType\":[\"id\",\"typeParameters\",\"supertype\",\"impltype\"],\"QualifiedTypeIdentifier\":[\"id\",\"qualification\"],\"StringLiteralTypeAnnotation\":[],\"StringTypeAnnotation\":[],\"ThisTypeAnnotation\":[],\"TupleTypeAnnotation\":[\"types\"],\"TypeofTypeAnnotation\":[\"argument\"],\"TypeAlias\":[\"id\",\"typeParameters\",\"right\"],\"TypeAnnotation\":[\"typeAnnotation\"],\"TypeCastExpression\":[\"expression\",\"typeAnnotation\"],\"TypeParameter\":[\"bound\",\"default\"],\"TypeParameterDeclaration\":[\"params\"],\"TypeParameterInstantiation\":[\"params\"],\"UnionTypeAnnotation\":[\"types\"],\"VoidTypeAnnotation\":[],\"JSXAttribute\":[\"name\",\"value\"],\"JSXClosingElement\":[\"name\"],\"JSXElement\":[\"openingElement\",\"children\",\"closingElement\"],\"JSXEmptyExpression\":[],\"JSXExpressionContainer\":[\"expression\"],\"JSXSpreadChild\":[\"expression\"],\"JSXIdentifier\":[],\"JSXMemberExpression\":[\"object\",\"property\"],\"JSXNamespacedName\":[\"namespace\",\"name\"],\"JSXOpeningElement\":[\"name\",\"attributes\"],\"JSXSpreadAttribute\":[\"argument\"],\"JSXText\":[],\"JSXFragment\":[\"openingFragment\",\"children\",\"closingFragment\"],\"JSXOpeningFragment\":[],\"JSXClosingFragment\":[],\"Noop\":[],\"ParenthesizedExpression\":[\"expression\"],\"AwaitExpression\":[\"argument\"],\"BindExpression\":[\"object\",\"callee\"],\"ClassProperty\":[\"key\",\"value\",\"typeAnnotation\",\"decorators\"],\"Import\":[],\"Decorator\":[\"expression\"],\"DoExpression\":[\"body\"],\"ExportDefaultSpecifier\":[\"exported\"],\"ExportNamespaceSpecifier\":[\"exported\"],\"TSParameterProperty\":[\"parameter\"],\"TSDeclareFunction\":[\"id\",\"typeParameters\",\"params\",\"returnType\"],\"TSDeclareMethod\":[\"decorators\",\"key\",\"typeParameters\",\"params\",\"returnType\"],\"TSQualifiedName\":[\"left\",\"right\"],\"TSCallSignatureDeclaration\":[\"typeParameters\",\"parameters\",\"typeAnnotation\"],\"TSConstructSignatureDeclaration\":[\"typeParameters\",\"parameters\",\"typeAnnotation\"],\"TSPropertySignature\":[\"key\",\"typeAnnotation\",\"initializer\"],\"TSMethodSignature\":[\"key\",\"typeParameters\",\"parameters\",\"typeAnnotation\"],\"TSIndexSignature\":[\"parameters\",\"typeAnnotation\"],\"TSAnyKeyword\":[],\"TSNumberKeyword\":[],\"TSObjectKeyword\":[],\"TSBooleanKeyword\":[],\"TSStringKeyword\":[],\"TSSymbolKeyword\":[],\"TSVoidKeyword\":[],\"TSUndefinedKeyword\":[],\"TSNullKeyword\":[],\"TSNeverKeyword\":[],\"TSThisType\":[],\"TSFunctionType\":[\"typeParameters\",\"typeAnnotation\"],\"TSConstructorType\":[\"typeParameters\",\"typeAnnotation\"],\"TSTypeReference\":[\"typeName\",\"typeParameters\"],\"TSTypePredicate\":[\"parameterName\",\"typeAnnotation\"],\"TSTypeQuery\":[\"exprName\"],\"TSTypeLiteral\":[\"members\"],\"TSArrayType\":[\"elementType\"],\"TSTupleType\":[\"elementTypes\"],\"TSUnionType\":[\"types\"],\"TSIntersectionType\":[\"types\"],\"TSParenthesizedType\":[\"typeAnnotation\"],\"TSTypeOperator\":[\"typeAnnotation\"],\"TSIndexedAccessType\":[\"objectType\",\"indexType\"],\"TSMappedType\":[\"typeParameter\",\"typeAnnotation\"],\"TSLiteralType\":[\"literal\"],\"TSExpressionWithTypeArguments\":[\"expression\",\"typeParameters\"],\"TSInterfaceDeclaration\":[\"id\",\"typeParameters\",\"extends\",\"body\"],\"TSInterfaceBody\":[\"body\"],\"TSTypeAliasDeclaration\":[\"id\",\"typeParameters\",\"typeAnnotation\"],\"TSAsExpression\":[\"expression\",\"typeAnnotation\"],\"TSTypeAssertion\":[\"typeAnnotation\",\"expression\"],\"TSEnumDeclaration\":[\"id\",\"members\"],\"TSEnumMember\":[\"id\",\"initializer\"],\"TSModuleDeclaration\":[\"id\",\"body\"],\"TSModuleBlock\":[\"body\"],\"TSImportEqualsDeclaration\":[\"id\",\"moduleReference\"],\"TSExternalModuleReference\":[\"expression\"],\"TSNonNullExpression\":[\"expression\"],\"TSExportAssignment\":[\"expression\"],\"TSNamespaceExportDeclaration\":[\"id\"],\"TSTypeAnnotation\":[\"typeAnnotation\"],\"TSTypeParameterInstantiation\":[\"params\"],\"TSTypeParameterDeclaration\":[\"params\"],\"TSTypeParameter\":[\"constraint\",\"default\"]}",
     _powerAssertRecorder = function () { function PowerAssertRecorder() { this.captured = []; } PowerAssertRecorder.prototype._capt = function _capt(value, espath) { this.captured.push({ value: value, espath: espath }); return value; }; PowerAssertRecorder.prototype._expr = function _expr(value, source) { var capturedValues = this.captured; this.captured = []; return { powerAssertContext: { value: value, events: capturedValues }, source: source }; }; return PowerAssertRecorder; }();
 
-var _marked = /*#__PURE__*/regeneratorRuntime.mark(gen);
+var _marked =
+/*#__PURE__*/
+regeneratorRuntime.mark(gen);
 
 function gen(a) {
   var _rec = new _powerAssertRecorder();
@@ -21,29 +23,27 @@ function gen(a) {
 
         case 6:
           _context.t4 = _context.sent;
-          _context.t5 = _context.t3._capt.call(_context.t3, _context.t4, 'arguments/0/left');
+          _context.t5 = _context.t3._capt.call(_context.t3, _context.t4, "arguments/0/left");
           _context.t6 = _context.t5 === 3;
-          _context.t7 = _context.t2._capt.call(_context.t2, _context.t6, 'arguments/0');
+          _context.t7 = _context.t2._capt.call(_context.t2, _context.t6, "arguments/0");
           _context.t8 = {
-            content: 'assert((yield a) === 3)',
-            filepath: 'test/fixtures/YieldExpression/fixture.js',
+            content: "assert((yield a) === 3)",
+            filepath: "test/fixtures/YieldExpression/fixture.js",
             line: 4,
             generator: true,
-            ast: '{"type":"CallExpression","callee":{"type":"Identifier","name":"assert","range":[0,6]},"arguments":[{"type":"BinaryExpression","operator":"===","left":{"type":"YieldExpression","argument":{"type":"Identifier","name":"a","range":[14,15]},"delegate":false,"range":[8,15]},"right":{"type":"NumericLiteral","value":3,"range":[21,22]},"range":[7,22]}],"range":[0,23]}',
-            tokens: '[{"type":{"label":"name"},"value":"assert","range":[0,6]},{"type":{"label":"("},"range":[6,7]},{"type":{"label":"("},"range":[7,8]},{"type":{"label":"yield"},"value":"yield","range":[8,13]},{"type":{"label":"name"},"value":"a","range":[14,15]},{"type":{"label":")"},"range":[15,16]},{"type":{"label":"==/!="},"value":"===","range":[17,20]},{"type":{"label":"num"},"value":3,"range":[21,22]},{"type":{"label":")"},"range":[22,23]}]',
+            ast: "{\"type\":\"CallExpression\",\"callee\":{\"type\":\"Identifier\",\"name\":\"assert\",\"range\":[0,6]},\"arguments\":[{\"type\":\"BinaryExpression\",\"operator\":\"===\",\"left\":{\"type\":\"YieldExpression\",\"argument\":{\"type\":\"Identifier\",\"name\":\"a\",\"range\":[14,15]},\"delegate\":false,\"range\":[8,15]},\"right\":{\"type\":\"NumericLiteral\",\"value\":3,\"range\":[21,22]},\"range\":[7,22]}],\"range\":[0,23]}",
+            tokens: "[{\"type\":{\"label\":\"name\"},\"value\":\"assert\",\"range\":[0,6]},{\"type\":{\"label\":\"(\"},\"range\":[6,7]},{\"type\":{\"label\":\"(\"},\"range\":[7,8]},{\"type\":{\"label\":\"yield\"},\"value\":\"yield\",\"range\":[8,13]},{\"type\":{\"label\":\"name\"},\"value\":\"a\",\"range\":[14,15]},{\"type\":{\"label\":\")\"},\"range\":[15,16]},{\"type\":{\"label\":\"==/!=\"},\"value\":\"===\",\"range\":[17,20]},{\"type\":{\"label\":\"num\"},\"value\":3,\"range\":[21,22]},{\"type\":{\"label\":\")\"},\"range\":[22,23]}]",
             visitorKeys: _powerAssertVisitorKeys
           };
           _context.t9 = _context.t1._expr.call(_context.t1, _context.t7, _context.t8);
           (0, _context.t0)(_context.t9);
 
         case 13:
-        case 'end':
+        case "end":
           return _context.stop();
       }
     }
   }, _marked, this);
-}
-
-// function notGen(a){
+} // function notGen(a){
 //   assert((yield (a)) === 3);
 // }
diff --git a/test/fixtures/YieldExpression/expected.js b/test/fixtures/YieldExpression/expected.js
index da50f8c..75c5e39 100644
--- a/test/fixtures/YieldExpression/expected.js
+++ b/test/fixtures/YieldExpression/expected.js
@@ -5,14 +5,12 @@ var _powerAssertRecorder = function () { function PowerAssertRecorder() { this.c
 function* gen(a) {
   var _rec = new _powerAssertRecorder();
 
-  assert(_rec._expr(_rec._capt(_rec._capt((yield a), 'arguments/0/left') === 3, 'arguments/0'), {
-    content: 'assert((yield a) === 3)',
-    filepath: 'test/fixtures/YieldExpression/fixture.js',
+  assert(_rec._expr(_rec._capt(_rec._capt((yield a), "arguments/0/left") === 3, "arguments/0"), {
+    content: "assert((yield a) === 3)",
+    filepath: "test/fixtures/YieldExpression/fixture.js",
     line: 4,
     generator: true
   }));
-}
-
-// function notGen(a){
+} // function notGen(a){
 //   assert((yield (a)) === 3);
 // }
diff --git a/test/fixtures/customPatterns/expected.js b/test/fixtures/customPatterns/expected.js
index ffc6b0c..85ef205 100644
--- a/test/fixtures/customPatterns/expected.js
+++ b/test/fixtures/customPatterns/expected.js
@@ -14,64 +14,58 @@ var _powerAssertRecorder = function () { function PowerAssertRecorder() { this.c
     _rec11 = new _powerAssertRecorder(),
     _rec12 = new _powerAssertRecorder();
 
-assert.isNull(_rec._expr(_rec._capt(falsy, 'arguments/0'), {
-  content: 'assert.isNull(falsy)',
-  filepath: 'test/fixtures/customPatterns/fixture.js',
+assert.isNull(_rec._expr(_rec._capt(falsy, "arguments/0"), {
+  content: "assert.isNull(falsy)",
+  filepath: "test/fixtures/customPatterns/fixture.js",
   line: 3
 }));
-
-assert.isNull(_rec2._expr(_rec2._capt(falsy, 'arguments/0'), {
-  content: 'assert.isNull(falsy, message)',
-  filepath: 'test/fixtures/customPatterns/fixture.js',
+assert.isNull(_rec2._expr(_rec2._capt(falsy, "arguments/0"), {
+  content: "assert.isNull(falsy, message)",
+  filepath: "test/fixtures/customPatterns/fixture.js",
   line: 5
 }), message);
-
-assert.same(_rec3._expr(_rec3._capt(foo, 'arguments/0'), {
-  content: 'assert.same(foo, bar)',
-  filepath: 'test/fixtures/customPatterns/fixture.js',
+assert.same(_rec3._expr(_rec3._capt(foo, "arguments/0"), {
+  content: "assert.same(foo, bar)",
+  filepath: "test/fixtures/customPatterns/fixture.js",
   line: 7
-}), _rec4._expr(_rec4._capt(bar, 'arguments/1'), {
-  content: 'assert.same(foo, bar)',
-  filepath: 'test/fixtures/customPatterns/fixture.js',
+}), _rec4._expr(_rec4._capt(bar, "arguments/1"), {
+  content: "assert.same(foo, bar)",
+  filepath: "test/fixtures/customPatterns/fixture.js",
   line: 7
 }));
-
-assert.same(_rec5._expr(_rec5._capt(foo, 'arguments/0'), {
-  content: 'assert.same(foo, bar, message)',
-  filepath: 'test/fixtures/customPatterns/fixture.js',
+assert.same(_rec5._expr(_rec5._capt(foo, "arguments/0"), {
+  content: "assert.same(foo, bar, message)",
+  filepath: "test/fixtures/customPatterns/fixture.js",
   line: 9
-}), _rec6._expr(_rec6._capt(bar, 'arguments/1'), {
-  content: 'assert.same(foo, bar, message)',
-  filepath: 'test/fixtures/customPatterns/fixture.js',
+}), _rec6._expr(_rec6._capt(bar, "arguments/1"), {
+  content: "assert.same(foo, bar, message)",
+  filepath: "test/fixtures/customPatterns/fixture.js",
   line: 9
 }), message);
-
 assert.near(actualVal, expectedVal);
-
-assert.near(_rec7._expr(_rec7._capt(actualVal, 'arguments/0'), {
-  content: 'assert.near(actualVal, expectedVal, delta)',
-  filepath: 'test/fixtures/customPatterns/fixture.js',
+assert.near(_rec7._expr(_rec7._capt(actualVal, "arguments/0"), {
+  content: "assert.near(actualVal, expectedVal, delta)",
+  filepath: "test/fixtures/customPatterns/fixture.js",
   line: 13
-}), _rec8._expr(_rec8._capt(expectedVal, 'arguments/1'), {
-  content: 'assert.near(actualVal, expectedVal, delta)',
-  filepath: 'test/fixtures/customPatterns/fixture.js',
+}), _rec8._expr(_rec8._capt(expectedVal, "arguments/1"), {
+  content: "assert.near(actualVal, expectedVal, delta)",
+  filepath: "test/fixtures/customPatterns/fixture.js",
   line: 13
-}), _rec9._expr(_rec9._capt(delta, 'arguments/2'), {
-  content: 'assert.near(actualVal, expectedVal, delta)',
-  filepath: 'test/fixtures/customPatterns/fixture.js',
+}), _rec9._expr(_rec9._capt(delta, "arguments/2"), {
+  content: "assert.near(actualVal, expectedVal, delta)",
+  filepath: "test/fixtures/customPatterns/fixture.js",
   line: 13
 }));
-
-assert.near(_rec10._expr(_rec10._capt(actualVal, 'arguments/0'), {
-  content: 'assert.near(actualVal, expectedVal, delta, message)',
-  filepath: 'test/fixtures/customPatterns/fixture.js',
+assert.near(_rec10._expr(_rec10._capt(actualVal, "arguments/0"), {
+  content: "assert.near(actualVal, expectedVal, delta, message)",
+  filepath: "test/fixtures/customPatterns/fixture.js",
   line: 15
-}), _rec11._expr(_rec11._capt(expectedVal, 'arguments/1'), {
-  content: 'assert.near(actualVal, expectedVal, delta, message)',
-  filepath: 'test/fixtures/customPatterns/fixture.js',
+}), _rec11._expr(_rec11._capt(expectedVal, "arguments/1"), {
+  content: "assert.near(actualVal, expectedVal, delta, message)",
+  filepath: "test/fixtures/customPatterns/fixture.js",
   line: 15
-}), _rec12._expr(_rec12._capt(delta, 'arguments/2'), {
-  content: 'assert.near(actualVal, expectedVal, delta, message)',
-  filepath: 'test/fixtures/customPatterns/fixture.js',
+}), _rec12._expr(_rec12._capt(delta, "arguments/2"), {
+  content: "assert.near(actualVal, expectedVal, delta, message)",
+  filepath: "test/fixtures/customPatterns/fixture.js",
   line: 15
 }), message);
diff --git a/test/fixtures/inputSourceMap/expected.js b/test/fixtures/inputSourceMap/expected.js
index e2b06e1..31e8bd3 100644
--- a/test/fixtures/inputSourceMap/expected.js
+++ b/test/fixtures/inputSourceMap/expected.js
@@ -1,7 +1,6 @@
 var _powerAssertRecorder = function () { function PowerAssertRecorder() { this.captured = []; } PowerAssertRecorder.prototype._capt = function _capt(value, espath) { this.captured.push({ value: value, espath: espath }); return value; }; PowerAssertRecorder.prototype._expr = function _expr(value, source) { var capturedValues = this.captured; this.captured = []; return { powerAssertContext: { value: value, events: capturedValues }, source: source }; }; return PowerAssertRecorder; }();
 
 var Person, assert;
-
 assert = require('power-assert');
 
 Person = function () {
diff --git a/test/test.js b/test/test.js
index 56885b2..1ca4d3c 100644
--- a/test/test.js
+++ b/test/test.js
@@ -1,7 +1,7 @@
 var assert = require('assert');
 var fs = require('fs');
 var path = require('path');
-var babel = require('babel-core');
+var babel = require('@babel/core');
 var assign = require('core-js/library/fn/object/assign');
 var createEspowerPlugin = require('../create');