[Fix] newline-after-import: respect decorator annotations

Fixes #1784.

Author: lilling

Diff for: CHANGELOG.md

@@ -27,6 +27,7 @@ This change log adheres to standards from [Keep a CHANGELOG](http://keepachangel
 - [`extensions`]/[`no-cycle`]/[`no-extraneous-dependencies`]: Correct module real path resolution ([#1696], thanks [@paztis])
 - [`no-named-default`]: ignore Flow import type and typeof ([#1983], thanks [@christianvuerings])
 - [`no-extraneous-dependencies`]: Exclude flow `typeof` imports ([#1534], thanks [@devongovett])
+- [`newline-after-import`]: respect decorator annotations ([#1985], thanks [@lilling])
 
 ### Changed
 - [Generic Import Callback] Make callback for all imports once in rules ([#1237], thanks [@ljqx])
@@ -765,6 +766,7 @@ for info on changes for earlier releases.
 [#2021]: https://github.com/benmosher/eslint-plugin-import/pull/2021
 [#1997]: https://github.com/benmosher/eslint-plugin-import/pull/1997
 [#1993]: https://github.com/benmosher/eslint-plugin-import/pull/1993
+[#1985]: https://github.com/benmosher/eslint-plugin-import/pull/1985
 [#1983]: https://github.com/benmosher/eslint-plugin-import/pull/1983
 [#1974]: https://github.com/benmosher/eslint-plugin-import/pull/1974
 [#1958]: https://github.com/benmosher/eslint-plugin-import/pull/1958
@@ -1350,3 +1352,4 @@ for info on changes for earlier releases.
 [@dwardu]: https://github.com/dwardu
 [@s-h-a-d-o-w]: https://github.com/s-h-a-d-o-w
 [@grit96]: https://github.com/grit96
+[@lilling]: https://github.com/lilling

Diff for: src/rules/newline-after-import.js

@@ -47,6 +47,10 @@ function isExportDefaultClass(node) {
   return node.type === 'ExportDefaultDeclaration' && node.declaration.type === 'ClassDeclaration';
 }
 
+function isExportNameClass(node) {
+  return node.type === 'ExportNamedDeclaration' && node.declaration.type === 'ClassDeclaration';
+}
+
 module.exports = {
   meta: {
     type: 'layout',
@@ -72,7 +76,7 @@ module.exports = {
     const requireCalls = [];
 
     function checkForNewLine(node, nextNode, type) {
-      if (isExportDefaultClass(nextNode)) {
+      if (isExportDefaultClass(nextNode) || isExportNameClass(nextNode)) {
         const classNode = nextNode.declaration;
 
         if (isClassWithDecorator(classNode)) {

Diff for: tests/src/rules/newline-after-import.js

@@ -1,7 +1,7 @@
 import { RuleTester } from 'eslint';
 import flatMap from 'array.prototype.flatmap';
 
-import { getTSParsers } from '../utils';
+import { getTSParsers, testVersion } from '../utils';
 
 const IMPORT_ERROR_MESSAGE = 'Expected 1 empty line after import statement not followed by another import.';
 const IMPORT_ERROR_MESSAGE_MULTIPLE = (count) => {
@@ -234,7 +234,7 @@ ruleTester.run('newline-after-import', require('rules/newline-after-import'), {
     ]),
   ],
 
-  invalid: [
+  invalid: [].concat(
     {
       code: `import foo from 'foo';\nexport default function() {};`,
       output: `import foo from 'foo';\n\nexport default function() {};`,
@@ -429,5 +429,29 @@ ruleTester.run('newline-after-import', require('rules/newline-after-import'), {
       parserOptions: { sourceType: 'module' },
       parser: require.resolve('babel-eslint'),
     },
-  ],
+    testVersion('>= 6', () => ({
+      code: `
+        // issue 1784
+        import { map } from 'rxjs/operators';
+        @Component({})
+        export class Test {}
+      `,
+      output: `
+        // issue 1784
+        import { map } from 'rxjs/operators';
+
+        @Component({})
+        export class Test {}
+      `,
+      errors: [
+        {
+          line: 3,
+          column: 9,
+          message: IMPORT_ERROR_MESSAGE,
+        },
+      ],
+      parserOptions: { sourceType: 'module' },
+      parser: require.resolve('babel-eslint'),
+    })) || [],
+  ),
 });