From b3e0e7571f1abb5dae347d3701844324232b1431 Mon Sep 17 00:00:00 2001
From: Melandra <melanie.calame@gmail.com>
Date: Mon, 17 Jul 2023 21:13:37 +0200
Subject: [PATCH] fix(eslint-plugin): [no-unsafe-enum-comparison] exempt bit
 shift operators (#7074)
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* fix: exempt bit shift operators

* Add test for other bit shift operator

* fix: extend regex to replace if statement

* fix: use more precise regex

---------

Co-authored-by: Josh Goldberg ✨ <git@joshuakgoldberg.com>
---
 .../src/rules/no-unsafe-enum-comparison.ts         |  2 +-
 .../tests/rules/no-unsafe-enum-comparison.test.ts  | 14 ++++++++++++++
 2 files changed, 15 insertions(+), 1 deletion(-)

diff --git a/packages/eslint-plugin/src/rules/no-unsafe-enum-comparison.ts b/packages/eslint-plugin/src/rules/no-unsafe-enum-comparison.ts
index 0a068b577e7..888924e3bc8 100644
--- a/packages/eslint-plugin/src/rules/no-unsafe-enum-comparison.ts
+++ b/packages/eslint-plugin/src/rules/no-unsafe-enum-comparison.ts
@@ -63,7 +63,7 @@ export default util.createRule({
     }
 
     return {
-      'BinaryExpression[operator=/=|<|>/]'(
+      'BinaryExpression[operator=/^[<>!=]?={0,2}$/]'(
         node: TSESTree.BinaryExpression,
       ): void {
         const left = getTypeFromNode(node.left);
diff --git a/packages/eslint-plugin/tests/rules/no-unsafe-enum-comparison.test.ts b/packages/eslint-plugin/tests/rules/no-unsafe-enum-comparison.test.ts
index adb3630354e..c31b742160c 100644
--- a/packages/eslint-plugin/tests/rules/no-unsafe-enum-comparison.test.ts
+++ b/packages/eslint-plugin/tests/rules/no-unsafe-enum-comparison.test.ts
@@ -292,6 +292,20 @@ ruleTester.run('strict-enums-comparison', rule, {
       num === someFunction;
       mixed === someFunction;
     `,
+    `
+      enum Fruit {
+        Apple,
+      }
+
+      const bitShift = 1 << Fruit.Apple;
+    `,
+    `
+      enum Fruit {
+        Apple,
+      }
+
+      const bitShift = 1 >> Fruit.Apple;
+    `,
   ],
   invalid: [
     {