[Fix] guard against empty parent

Author: laurens-dg

CHANGELOG.md

@@ -11,6 +11,7 @@ This change log adheres to standards from [Keep a CHANGELOG](https://keepachange
 - [`consistent-type-specifier-style`]: fix accidental removal of comma in certain cases ([#2754], thanks [@bradzacher])
 - [Perf] `ExportMap`: Improve `ExportMap.for` performance on larger codebases ([#2756], thanks [@leipert])
 - [`no-extraneous-dependencies`]/TypeScript: do not error when importing inline type from dev dependencies ([#1820], thanks [@andyogo])
+- [`newline-after-import`]/TypeScript: do not error when re-exporting a namespaced import ([#2832], thanks [@laurens-dg])
 * [`order`]: partial fix for [#2687] (thanks [@ljharb])
 
 ### Changed
@@ -1072,6 +1073,7 @@ for info on changes for earlier releases.
 
 [`memo-parser`]: ./memo-parser/README.md
 
+[#2832]: https://github.com/import-js/eslint-plugin-import/pull/2832
 [#2756]: https://github.com/import-js/eslint-plugin-import/pull/2756
 [#2754]: https://github.com/import-js/eslint-plugin-import/pull/2754
 [#2748]: https://github.com/import-js/eslint-plugin-import/pull/2748
@@ -1746,6 +1748,7 @@ for info on changes for earlier releases.
 [@KostyaZgara]: https://github.com/KostyaZgara
 [@kylemh]: https://github.com/kylemh
 [@laysent]: https://github.com/laysent
+[@laurens-dg]: https://github.com/laurens-dg
 [@le0nik]: https://github.com/le0nik
 [@leipert]: https://github.com/leipert
 [@lemonmade]: https://github.com/lemonmade

src/rules/newline-after-import.js

@@ -149,6 +149,11 @@ module.exports = {
 
     function checkImport(node) {
       const { parent } = node;
+
+      if (!parent || !parent.body) {
+        return;
+      }
+
       const nodePosition = parent.body.indexOf(node);
       const nextNode = parent.body[nodePosition + 1];
       const endLine = node.loc.end.line;

tests/src/rules/newline-after-import.js

@@ -26,7 +26,7 @@ ruleTester.run('newline-after-import', require('rules/newline-after-import'), {
       code: `
         const x = () => require('baz')
             , y = () => require('bar')
-            
+
         // some comment here
       `,
       parserOptions: { ecmaVersion: 6 },
@@ -273,6 +273,16 @@ ruleTester.run('newline-after-import', require('rules/newline-after-import'), {
         parser,
         parserOptions: { ecmaVersion: 2015, sourceType: 'module' },
       },
+      {
+        code: `
+        import { ns } from 'namespace';
+        import Bar = ns.baz.foo.Bar;
+
+        export import Foo = ns.baz.bar.Foo;
+      `,
+        parser,
+        parserOptions: { ecmaVersion: 2015, sourceType: 'module' },
+      },
     )),
     {
       code: `
@@ -299,7 +309,7 @@ ruleTester.run('newline-after-import', require('rules/newline-after-import'), {
     {
       code: `
         import path from 'path';import foo from 'foo';
-        
+
         /**
          * some multiline comment here
          * another line of comment
@@ -313,7 +323,7 @@ ruleTester.run('newline-after-import', require('rules/newline-after-import'), {
       code: `
         import path from 'path';
         import foo from 'foo';
-        
+
         // Some random single line comment
         var bar = 42;
       `,