Normalize NoInferType

microsoft · Feb 25, 2023 · 86448ff · 86448ff
1 parent f94b780
commit 86448ff
Show file tree

Hide file tree

Showing 2 changed files with 2 additions and 6 deletions.
diff --git a/src/compiler/checker.ts b/src/compiler/checker.ts
@@ -20101,6 +20101,7 @@ export function createTypeChecker(host: TypeCheckerHost): TypeChecker {
                 type.flags & TypeFlags.UnionOrIntersection ? getNormalizedUnionOrIntersectionType(type as UnionOrIntersectionType, writing) :
                 type.flags & TypeFlags.Substitution ? writing ? (type as SubstitutionType).baseType : getSubstitutionIntersection(type as SubstitutionType) :
                 type.flags & TypeFlags.Simplifiable ? getSimplifiedType(type, writing) :
+                type.flags & TypeFlags.NoInfer ? (type as NoInferType).type :
                 type;
             if (t === type) return t;
             type = t;

diff --git a/tests/baselines/reference/noInfer.errors.txt b/tests/baselines/reference/noInfer.errors.txt
@@ -8,11 +8,9 @@ tests/cases/conformance/types/typeRelationships/typeInference/noInfer.ts(24,14):
   Object literal may only specify known properties, and 'y' does not exist in type '{ x: number; }'.
 tests/cases/conformance/types/typeRelationships/typeInference/noInfer.ts(31,14): error TS2345: Argument of type '{}' is not assignable to parameter of type '{ foo: number; }'.
   Property 'foo' is missing in type '{}' but required in type '{ foo: number; }'.
-tests/cases/conformance/types/typeRelationships/typeInference/noInfer.ts(41,9): error TS2322: Type 'NoInfer<T>' is not assignable to type 'T'.
-  'T' could be instantiated with an arbitrary type which could be unrelated to 'NoInfer<T>'.
 
 
-==== tests/cases/conformance/types/typeRelationships/typeInference/noInfer.ts (7 errors) ====
+==== tests/cases/conformance/types/typeRelationships/typeInference/noInfer.ts (6 errors) ====
     export declare function foo<T extends string>(a: T, b: NoInfer<T>): void
 
     foo('foo', 'foo') // ok
@@ -74,9 +72,6 @@ tests/cases/conformance/types/typeRelationships/typeInference/noInfer.ts(41,9):
 
         get value(): T {
             return this._value; // ok
-            ~~~~~~~~~~~~~~~~~~~
-!!! error TS2322: Type 'NoInfer<T>' is not assignable to type 'T'.
-!!! error TS2322:   'T' could be instantiated with an arbitrary type which could be unrelated to 'NoInfer<T>'.
         }
     }
     export class OkClass2<T> {