[Fix] newline-after-import: consider TypeScript import = syntax

Fixes #1811.

Author: ljharb

CHANGELOG.md

@@ -8,6 +8,7 @@ This change log adheres to standards from [Keep a CHANGELOG](http://keepachangel
 
 ### Fixed
 - [`order`]: avoid a crash on TypeScript’s `export import` syntax ([#1808], thanks [@ljharb])
+- [`newline-after-import`]: consider TypeScript `import =` syntax' ([#1811], thanks [@ljharb])
 
 ## [2.21.1] - 2020-06-07
 ### Fixed
@@ -900,6 +901,7 @@ 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
+[#1811]: https://github.com/benmosher/eslint-plugin-import/issues/1811
 [#1808]: https://github.com/benmosher/eslint-plugin-import/issues/1808
 [#1805]: https://github.com/benmosher/eslint-plugin-import/issues/1805
 [#1565]: https://github.com/benmosher/eslint-plugin-import/issues/1565

src/rules/newline-after-import.js

@@ -115,16 +115,19 @@ after ${type} statement not followed by another ${type}.`,
       level--
     }
 
-    return {
-      ImportDeclaration: function (node) {
+    function checkImport(node) {
         const { parent } = node
         const nodePosition = parent.body.indexOf(node)
         const nextNode = parent.body[nodePosition + 1]
 
-        if (nextNode && nextNode.type !== 'ImportDeclaration') {
+        if (nextNode && nextNode.type !== 'ImportDeclaration' && nextNode.type !== 'TSImportEqualsDeclaration') {
           checkForNewLine(node, nextNode, 'import')
         }
-      },
+    }
+
+    return {
+      ImportDeclaration: checkImport,
+      TSImportEqualsDeclaration: checkImport,
       CallExpression: function(node) {
         if (isStaticRequire(node) && level === 0) {
           requireCalls.push(node)

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

@@ -1,4 +1,7 @@
 import { RuleTester } from 'eslint'
+import flatMap from 'array.prototype.flatmap'
+
+import { getTSParsers } from '../utils'
 
 const IMPORT_ERROR_MESSAGE = 'Expected 1 empty line after import statement not followed by another import.'
 const IMPORT_ERROR_MESSAGE_MULTIPLE = (count) => {
@@ -175,6 +178,42 @@ ruleTester.run('newline-after-import', require('rules/newline-after-import'), {
       parserOptions: { sourceType: 'module' },
       parser: require.resolve('babel-eslint'),
     },
+    ...flatMap(getTSParsers(), (parser) => [
+      {
+        code: `
+          import { ExecaReturnValue } from 'execa';
+          import execa = require('execa');
+        `,
+        parser: parser,
+        parserOptions: { ecmaVersion: 2015, sourceType: 'module' },
+      },
+      {
+        code: `
+          import execa = require('execa');
+          import { ExecaReturnValue } from 'execa';
+        `,
+        parser: parser,
+        parserOptions: { ecmaVersion: 2015, sourceType: 'module' },
+      },
+      {
+        code: `
+          import { ExecaReturnValue } from 'execa';
+          import execa = require('execa');
+          import { ExecbReturnValue } from 'execb';
+        `,
+        parser: parser,
+        parserOptions: { ecmaVersion: 2015, sourceType: 'module' },
+      },
+      {
+        code: `
+          import execa = require('execa');
+          import { ExecaReturnValue } from 'execa';
+          import execb = require('execb');
+        `,
+        parser: parser,
+        parserOptions: { ecmaVersion: 2015, sourceType: 'module' },
+      },
+    ]),
   ],
 
   invalid: [