From 69b2b1fff865d7ae50e8e90a3056c6d0553a1a52 Mon Sep 17 00:00:00 2001
From: Matt Pocock <mattpocockvoice@gmail.com>
Date: Sun, 19 Feb 2023 21:26:26 +0000
Subject: [PATCH] Fix for Set.has

---
 CHANGELOG.md                 |  6 ++++++
 package.json                 |  2 +-
 src/entrypoints/set-has.d.ts |  2 +-
 src/tests/set-has.ts         | 10 ----------
 4 files changed, 8 insertions(+), 12 deletions(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 77ca869..158a530 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,11 @@
 # @total-typescript/ts-reset
 
+## 0.3.2
+
+### Patch Changes
+
+- Removed the ability to use Set.has as a type predicate. This ensures that Set.has never sets the checked element to never.
+
 ## 0.3.1
 
 ### Patch Changes
diff --git a/package.json b/package.json
index b3e1403..3597983 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@total-typescript/ts-reset",
-  "version": "0.3.1",
+  "version": "0.3.2",
   "description": "A CSS reset for TypeScript, improving types for common JavaScript API's",
   "private": false,
   "repository": "https://github.com/total-typescript/ts-reset",
diff --git a/src/entrypoints/set-has.d.ts b/src/entrypoints/set-has.d.ts
index d534fee..2da70da 100644
--- a/src/entrypoints/set-has.d.ts
+++ b/src/entrypoints/set-has.d.ts
@@ -1,5 +1,5 @@
 /// <reference path="utils.d.ts" />
 
 interface Set<T> {
-  has(value: T | (TSReset.WidenLiteral<T> & {})): value is T;
+  has(value: T | (TSReset.WidenLiteral<T> & {})): boolean;
 }
diff --git a/src/tests/set-has.ts b/src/tests/set-has.ts
index 0318b5f..288bf98 100644
--- a/src/tests/set-has.ts
+++ b/src/tests/set-has.ts
@@ -15,13 +15,3 @@ doNotExecute(() => {
     true,
   );
 });
-
-doNotExecute(() => {
-  const set = new Set([1, 2, 3] as const);
-
-  let member = 1;
-
-  if (set.has(member)) {
-    type tests = [Expect<Equal<typeof member, 1 | 2 | 3>>];
-  }
-});