fix self-check

Andarist · Andarist · commit 709b33d48d2b · 2024-12-21T00:17:26.000+01:00
diff --git a/src/compiler/checker.ts b/src/compiler/checker.ts
@@ -18117,7 +18117,7 @@ export function createTypeChecker(host: TypeCheckerHost): TypeChecker {
                     removeFromEach(typeSet, TypeFlags.Undefined);
                     result = getUnionType([getIntersectionType(typeSet, flags), containedUndefinedType], UnionReduction.Literal, aliasSymbol, aliasTypeArguments);
                 }
-                else if (every(typeSet, t => !!(t.flags & TypeFlags.Union && ((t as UnionType).types[0].flags & TypeFlags.Null || (t as UnionType).types[1].flags & TypeFlags.Null)))) {
+                else if (every(typeSet, (t): boolean => !!(t.flags & TypeFlags.Union && ((t as UnionType).types[0].flags & TypeFlags.Null || (t as UnionType).types[1].flags & TypeFlags.Null)))) {
                     removeFromEach(typeSet, TypeFlags.Null);
                     result = getUnionType([getIntersectionType(typeSet, flags), nullType], UnionReduction.Literal, aliasSymbol, aliasTypeArguments);
                 }
@@ -18434,7 +18434,7 @@ export function createTypeChecker(host: TypeCheckerHost): TypeChecker {
         }
         newTexts.push(text);
         if (every(newTexts, t => t === "")) {
-            if (every(newTypes, t => !!(t.flags & TypeFlags.String))) {
+            if (every(newTypes, (t): boolean => !!(t.flags & TypeFlags.String))) {
                 return stringType;
             }
             // Normalize `${Mapping<xxx>}` into Mapping<xxx>

Original file line number	Diff line number	Diff line change
`@@ -18117,7 +18117,7 @@ export function createTypeChecker(host: TypeCheckerHost): TypeChecker {`
`18117`	`18117`	`removeFromEach(typeSet, TypeFlags.Undefined);`
`18118`	`18118`	`result = getUnionType([getIntersectionType(typeSet, flags), containedUndefinedType], UnionReduction.Literal, aliasSymbol, aliasTypeArguments);`
`18119`	`18119`	`}`
`18120`		`- else if (every(typeSet, t => !!(t.flags & TypeFlags.Union && ((t as UnionType).types[0].flags & TypeFlags.Null \|\| (t as UnionType).types[1].flags & TypeFlags.Null)))) {`
	`18120`	`+ else if (every(typeSet, (t): boolean => !!(t.flags & TypeFlags.Union && ((t as UnionType).types[0].flags & TypeFlags.Null \|\| (t as UnionType).types[1].flags & TypeFlags.Null)))) {`
`18121`	`18121`	`removeFromEach(typeSet, TypeFlags.Null);`
`18122`	`18122`	`result = getUnionType([getIntersectionType(typeSet, flags), nullType], UnionReduction.Literal, aliasSymbol, aliasTypeArguments);`
`18123`	`18123`	`}`
`@@ -18434,7 +18434,7 @@ export function createTypeChecker(host: TypeCheckerHost): TypeChecker {`
`18434`	`18434`	`}`
`18435`	`18435`	`newTexts.push(text);`
`18436`	`18436`	`if (every(newTexts, t => t === "")) {`
`18437`		`- if (every(newTypes, t => !!(t.flags & TypeFlags.String))) {`
	`18437`	`+ if (every(newTypes, (t): boolean => !!(t.flags & TypeFlags.String))) {`
`18438`	`18438`	`return stringType;`
`18439`	`18439`	`}`
`18440`	`18440`	// Normalize `${Mapping<xxx>}` into Mapping<xxx>