Fix for Set.has

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

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",

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;
 }

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>>];
-  }
-});