revert to old version of source-map

Author: David Sheldrick

index.js

@@ -52,8 +52,8 @@ function loadJsonFile(jsonFilename) {
 }
 
 // only used with RN >= 52
-async function sourceMapAstInPlace(tsMap, babelAst) {
-  const tsConsumer = await new SourceMapConsumer(tsMap)
+function sourceMapAstInPlace(tsMap, babelAst) {
+  const tsConsumer = new SourceMapConsumer(tsMap)
   traverse.default.cheap(babelAst, node => {
     if (node.loc) {
       const originalStart = tsConsumer.originalPositionFor(node.loc.start)
@@ -70,8 +70,8 @@ async function sourceMapAstInPlace(tsMap, babelAst) {
   })
 }
 
-async function composeRawSourceMap(tsMap, babelMap) {
-  const tsConsumer = await new SourceMapConsumer(tsMap)
+function composeRawSourceMap(tsMap, babelMap) {
+  const tsConsumer = new SourceMapConsumer(tsMap)
   const composedMap = []
   babelMap.forEach(
     ([generatedLine, generatedColumn, originalLine, originalColumn, name]) => {
@@ -104,15 +104,9 @@ async function composeRawSourceMap(tsMap, babelMap) {
   return composedMap
 }
 
-async function composeSourceMaps(
-  tsMap,
-  babelMap,
-  tsFileName,
-  tsContent,
-  babelCode
-) {
-  const tsConsumer = await new SourceMapConsumer(tsMap)
-  const babelConsumer = await new SourceMapConsumer(babelMap)
+function composeSourceMaps(tsMap, babelMap, tsFileName, tsContent, babelCode) {
+  const tsConsumer = new SourceMapConsumer(tsMap)
+  const babelConsumer = new SourceMapConsumer(babelMap)
   const map = new SourceMapGenerator()
   map.setSourceContent(tsFileName, tsContent)
   babelConsumer.eachMapping(
@@ -204,7 +198,7 @@ module.exports.getCacheKey = function() {
   return key.digest('hex')
 }
 
-module.exports.transform = async function(src, filename, options) {
+module.exports.transform = function(src, filename, options) {
   if (typeof src === 'object') {
     // handle RN >= 0.46
     ;({ src, filename, options } = src)
@@ -244,23 +238,18 @@ module.exports.transform = async function(src, filename, options) {
       }
     }
 
-    const babelCompileResult = await Promise.resolve(
-      upstreamTransformer.transform({
-        src: tsCompileResult.outputText,
-        filename,
-        options,
-      })
-    )
+    const babelCompileResult = upstreamTransformer.transform({
+      src: tsCompileResult.outputText,
+      filename,
+      options,
+    })
 
     if (reactNativeMinorVersion >= 52) {
-      await sourceMapAstInPlace(
-        tsCompileResult.sourceMapText,
-        babelCompileResult.ast
-      )
+      sourceMapAstInPlace(tsCompileResult.sourceMapText, babelCompileResult.ast)
       return babelCompileResult
     }
 
-    const composedMap = await (Array.isArray(babelCompileResult.map)
+    const composedMap = Array.isArray(babelCompileResult.map)
       ? composeRawSourceMap(
           tsCompileResult.sourceMapText,
           babelCompileResult.map
@@ -271,7 +260,7 @@ module.exports.transform = async function(src, filename, options) {
           filename,
           src,
           babelCompileResult.code
-        ))
+        )
 
     return Object.assign({}, babelCompileResult, {
       map: composedMap,

package.json

@@ -6,15 +6,12 @@
   "repository": "https://github.com/ds300/react-native-typescript-transformer",
   "author": "David Sheldrick",
   "license": "MIT",
-  "engines": {
-    "node": ">=8.0.0"
-  },
   "dependencies": {
     "chalk": "^2.4.0",
     "find-root": "^1.1.0",
     "jju": "^1.3.0",
     "semver": "^5.4.1",
-    "source-map": "^0.7.3"
+    "source-map": "^0.5.6"
   },
   "peerDependencies": {
     "react-native": ">=0.45.0",

yarn.lock

@@ -4582,10 +4582,6 @@ source-map@^0.5.0, source-map@^0.5.3, source-map@^0.5.6, source-map@~0.5.1:
   version "0.5.6"
   resolved "https://registry.yarnpkg.com/source-map/-/source-map-0.5.6.tgz#75ce38f52bf0733c5a7f0c118d81334a2bb5f412"
 
-source-map@^0.7.3:
-  version "0.7.3"
-  resolved "https://registry.yarnpkg.com/source-map/-/source-map-0.7.3.tgz#5302f8169031735226544092e64981f751750383"
-
 source-map@~0.2.0:
   version "0.2.0"
   resolved "https://registry.yarnpkg.com/source-map/-/source-map-0.2.0.tgz#dab73fbcfc2ba819b4de03bd6f6eaa48164b3f9d"