[Fix] newline-after-import: fix crash with export {} syntax

Fixes #2063. Fixes #2065.

Author: ljharb

CHANGELOG.md

@@ -6,6 +6,9 @@ This change log adheres to standards from [Keep a CHANGELOG](http://keepachangel
 
 ## [Unreleased]
 
+### Fixed
+- [`newline-after-import`]: fix crash with `export {}` syntax ([#2063], [#2065], thanks [@ljharb])
+
 ## [2.23.0] - 2021-05-13
 
 ### Added
@@ -1003,6 +1006,8 @@ for info on changes for earlier releases.
 [#211]: https://github.com/benmosher/eslint-plugin-import/pull/211
 [#164]: https://github.com/benmosher/eslint-plugin-import/pull/164
 [#157]: https://github.com/benmosher/eslint-plugin-import/pull/157
+[#2065]: https://github.com/benmosher/eslint-plugin-import/issues/2065
+[#2063]: https://github.com/benmosher/eslint-plugin-import/issues/2063
 [#1965]: https://github.com/benmosher/eslint-plugin-import/issues/1965
 [#1924]: https://github.com/benmosher/eslint-plugin-import/issues/1924
 [#1854]: https://github.com/benmosher/eslint-plugin-import/issues/1854

src/rules/newline-after-import.js

@@ -48,7 +48,8 @@ function isExportDefaultClass(node) {
 }
 
 function isExportNameClass(node) {
-  return node.type === 'ExportNamedDeclaration' && node.declaration.type === 'ClassDeclaration';
+  
+  return node.type === 'ExportNamedDeclaration' && node.declaration && node.declaration.type === 'ClassDeclaration';
 }
 
 module.exports = {

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

@@ -231,7 +231,28 @@ ruleTester.run('newline-after-import', require('rules/newline-after-import'), {
         parser: parser,
         parserOptions: { ecmaVersion: 2015, sourceType: 'module' },
       },
+      {
+        code: `
+          import stub from './stub';
+
+          export {
+              stub
+          }
+        `,
+        parser: parser,
+        parserOptions: { ecmaVersion: 2015, sourceType: 'module' },
+      },
     ]),
+    {
+      code: `
+        import stub from './stub';
+
+        export {
+            stub
+        }
+      `,
+      parserOptions: { ecmaVersion: 2015, sourceType: 'module' },
+    },
   ],
 
   invalid: [].concat(