From f0dc4a631c1ffc275c206ec6512a2972a9a3f805 Mon Sep 17 00:00:00 2001
From: Brad Zacher <brad.zacher@gmail.com>
Date: Thu, 9 Feb 2023 21:19:10 +1030
Subject: [PATCH] fix(eslint-plugin): [no-import-type-side-effects] correctly
 ignore zero-specifier imports

---
 .../eslint-plugin/src/rules/no-import-type-side-effects.ts    | 4 ++++
 .../tests/rules/no-import-type-side-effects.test.ts           | 1 +
 2 files changed, 5 insertions(+)

diff --git a/packages/eslint-plugin/src/rules/no-import-type-side-effects.ts b/packages/eslint-plugin/src/rules/no-import-type-side-effects.ts
index ce80a654afe5..941aa93e72ae 100644
--- a/packages/eslint-plugin/src/rules/no-import-type-side-effects.ts
+++ b/packages/eslint-plugin/src/rules/no-import-type-side-effects.ts
@@ -29,6 +29,10 @@ export default util.createRule<Options, MessageIds>({
       'ImportDeclaration[importKind!="type"]'(
         node: TSESTree.ImportDeclaration,
       ): void {
+        if (node.specifiers.length === 0) {
+          return;
+        }
+
         const specifiers: TSESTree.ImportSpecifier[] = [];
         for (const specifier of node.specifiers) {
           if (
diff --git a/packages/eslint-plugin/tests/rules/no-import-type-side-effects.test.ts b/packages/eslint-plugin/tests/rules/no-import-type-side-effects.test.ts
index 9dade06a9432..98d7923e4b45 100644
--- a/packages/eslint-plugin/tests/rules/no-import-type-side-effects.test.ts
+++ b/packages/eslint-plugin/tests/rules/no-import-type-side-effects.test.ts
@@ -18,6 +18,7 @@ ruleTester.run('no-import-type-side-effects', rule, {
     "import type T, { U } from 'mod';",
     "import T, { type U } from 'mod';",
     "import type * as T from 'mod';",
+    "import 'mod';",
   ],
   invalid: [
     {