0e905be42b
* Switch index signature storage to 'indexInfos: IndexInfo[]' property * Accept new baselines * Remove another usage of IndexKind enum * Update getIndexedAccessType and resolveMappedTypeMembers * Accept new baselines * Update grammar checking for index signatures * Accept new baselines * Consider all index signatures in mapped types and union types * Accept new baselines * Update getIndexType * Accept new baselines * Intersect multiple applicable index signatures * Use getApplicableIndexInfo instead of hardwired string/number handling * Update index signature relationship checking * Report type for which index signature is missing * Report type for which index signature is missing * Accept new baselines * Make 'number' index signatures consistently apply to numeric strings * Accept new baselines * Update fourslash test * Revise index constraint checking * Accept new baselines * Update error messages * Accept new baselines * Update type inference from index signatures * Update isKnownProperty * Update contextual typing based on index signatures * Accept new baselines * Support union types in index signature declarations * Accept new baselines * Check duplicate index signatures / remove redundant template literals from unions with string * Accept new baselines * Include key type in diagnostic / check symbol-named properties * Accept new baselines * Minor fix * Add tests * Accept new baselines * Add optimized findApplicableIndexInfoForName * Accept new baselines * Another place we don't need to obtain literal type for property name * Accept new baselines * Don't create literal types that are going to be discarded * Individual maps for string, number, bigint, and enum literal types * Remove ineffective optimizations * Accept new baselines * Permit intersections as key types in index signatures * Index expression in element access is template literal context * Add tests * Accept new baselines * Symbol index signatures from object literals with computed symbol properties * Accept new baselines * Add more tests * Accept new baselines * Implement Go To Definition for all applicable index signatures * Add fourslash test * Accept new API baselines
97 lines
5.4 KiB
Plaintext
97 lines
5.4 KiB
Plaintext
tests/cases/conformance/types/typeRelationships/assignmentCompatibility/assignmentCompatWithNumericIndexer.ts(14,1): error TS2322: Type 'A' is not assignable to type '{ [x: number]: Derived; }'.
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'number' index signatures are incompatible.
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Property 'bar' is missing in type 'Base' but required in type 'Derived'.
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tests/cases/conformance/types/typeRelationships/assignmentCompatibility/assignmentCompatWithNumericIndexer.ts(18,1): error TS2322: Type 'A' is not assignable to type '{ [x: number]: Derived2; }'.
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'number' index signatures are incompatible.
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Type 'Base' is missing the following properties from type 'Derived2': baz, bar
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tests/cases/conformance/types/typeRelationships/assignmentCompatibility/assignmentCompatWithNumericIndexer.ts(32,9): error TS2322: Type '{ [x: number]: Derived; }' is not assignable to type 'A<T>'.
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'number' index signatures are incompatible.
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Type 'Derived' is not assignable to type 'T'.
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'Derived' is assignable to the constraint of type 'T', but 'T' could be instantiated with a different subtype of constraint 'Base'.
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tests/cases/conformance/types/typeRelationships/assignmentCompatibility/assignmentCompatWithNumericIndexer.ts(33,9): error TS2322: Type 'A<T>' is not assignable to type '{ [x: number]: Derived; }'.
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'number' index signatures are incompatible.
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Type 'T' is not assignable to type 'Derived'.
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Type 'Base' is not assignable to type 'Derived'.
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tests/cases/conformance/types/typeRelationships/assignmentCompatibility/assignmentCompatWithNumericIndexer.ts(36,9): error TS2322: Type '{ [x: number]: Derived2; }' is not assignable to type 'A<T>'.
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'number' index signatures are incompatible.
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Type 'Derived2' is not assignable to type 'T'.
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'Derived2' is assignable to the constraint of type 'T', but 'T' could be instantiated with a different subtype of constraint 'Base'.
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tests/cases/conformance/types/typeRelationships/assignmentCompatibility/assignmentCompatWithNumericIndexer.ts(37,9): error TS2322: Type 'A<T>' is not assignable to type '{ [x: number]: Derived2; }'.
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'number' index signatures are incompatible.
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Type 'T' is not assignable to type 'Derived2'.
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Type 'Base' is not assignable to type 'Derived2'.
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==== tests/cases/conformance/types/typeRelationships/assignmentCompatibility/assignmentCompatWithNumericIndexer.ts (6 errors) ====
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// Derived type indexer must be subtype of base type indexer
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interface Base { foo: string; }
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interface Derived extends Base { bar: string; }
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interface Derived2 extends Derived { baz: string; }
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class A {
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[x: number]: Base;
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}
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var a: A;
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var b: { [x: number]: Derived; }
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a = b;
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b = a; // error
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~
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!!! error TS2322: Type 'A' is not assignable to type '{ [x: number]: Derived; }'.
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!!! error TS2322: 'number' index signatures are incompatible.
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!!! error TS2322: Property 'bar' is missing in type 'Base' but required in type 'Derived'.
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!!! related TS2728 tests/cases/conformance/types/typeRelationships/assignmentCompatibility/assignmentCompatWithNumericIndexer.ts:4:34: 'bar' is declared here.
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var b2: { [x: number]: Derived2; }
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a = b2;
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b2 = a; // error
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~~
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!!! error TS2322: Type 'A' is not assignable to type '{ [x: number]: Derived2; }'.
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!!! error TS2322: 'number' index signatures are incompatible.
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!!! error TS2322: Type 'Base' is missing the following properties from type 'Derived2': baz, bar
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module Generics {
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class A<T extends Base> {
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[x: number]: T;
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}
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class B extends A<Base> {
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[x: number]: Derived; // ok
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}
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function foo<T extends Base>() {
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var a: A<T>;
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var b: { [x: number]: Derived; }
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a = b; // error
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~
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!!! error TS2322: Type '{ [x: number]: Derived; }' is not assignable to type 'A<T>'.
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!!! error TS2322: 'number' index signatures are incompatible.
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!!! error TS2322: Type 'Derived' is not assignable to type 'T'.
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!!! error TS2322: 'Derived' is assignable to the constraint of type 'T', but 'T' could be instantiated with a different subtype of constraint 'Base'.
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b = a; // error
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~
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!!! error TS2322: Type 'A<T>' is not assignable to type '{ [x: number]: Derived; }'.
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!!! error TS2322: 'number' index signatures are incompatible.
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!!! error TS2322: Type 'T' is not assignable to type 'Derived'.
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!!! error TS2322: Type 'Base' is not assignable to type 'Derived'.
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var b2: { [x: number]: Derived2; }
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a = b2; // error
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~
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!!! error TS2322: Type '{ [x: number]: Derived2; }' is not assignable to type 'A<T>'.
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!!! error TS2322: 'number' index signatures are incompatible.
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!!! error TS2322: Type 'Derived2' is not assignable to type 'T'.
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!!! error TS2322: 'Derived2' is assignable to the constraint of type 'T', but 'T' could be instantiated with a different subtype of constraint 'Base'.
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b2 = a; // error
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~~
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!!! error TS2322: Type 'A<T>' is not assignable to type '{ [x: number]: Derived2; }'.
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!!! error TS2322: 'number' index signatures are incompatible.
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!!! error TS2322: Type 'T' is not assignable to type 'Derived2'.
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!!! error TS2322: Type 'Base' is not assignable to type 'Derived2'.
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var b3: { [x: number]: T; }
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a = b3; // ok
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b3 = a; // ok
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}
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} |