151 lines
6.8 KiB
Plaintext
151 lines
6.8 KiB
Plaintext
tests/cases/conformance/types/typeRelationships/assignmentCompatibility/assignmentCompatWithGenericCallSignaturesWithOptionalParameters.ts(14,13): error TS2322: Type '(x: T) => any' is not assignable to type '() => T'.
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tests/cases/conformance/types/typeRelationships/assignmentCompatibility/assignmentCompatWithGenericCallSignaturesWithOptionalParameters.ts(23,13): error TS2322: Type '(x: T, y: T) => any' is not assignable to type '(x: T) => T'.
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tests/cases/conformance/types/typeRelationships/assignmentCompatibility/assignmentCompatWithGenericCallSignaturesWithOptionalParameters.ts(65,9): error TS2322: Type '(x: T) => T' is not assignable to type '<T>() => T'.
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tests/cases/conformance/types/typeRelationships/assignmentCompatibility/assignmentCompatWithGenericCallSignaturesWithOptionalParameters.ts(66,9): error TS2322: Type '(x: T, y?: T) => T' is not assignable to type '<T>() => T'.
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tests/cases/conformance/types/typeRelationships/assignmentCompatibility/assignmentCompatWithGenericCallSignaturesWithOptionalParameters.ts(107,13): error TS2322: Type '<T>(x: T) => any' is not assignable to type '<T>() => T'.
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tests/cases/conformance/types/typeRelationships/assignmentCompatibility/assignmentCompatWithGenericCallSignaturesWithOptionalParameters.ts(116,13): error TS2322: Type '<T>(x: T, y: T) => any' is not assignable to type '<T>(x: T) => T'.
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==== tests/cases/conformance/types/typeRelationships/assignmentCompatibility/assignmentCompatWithGenericCallSignaturesWithOptionalParameters.ts (6 errors) ====
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// call signatures in derived types must have the same or fewer optional parameters as the target for assignment
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module ClassTypeParam {
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class Base<T> {
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a: () => T;
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a2: (x?: T) => T;
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a3: (x: T) => T;
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a4: (x: T, y?: T) => T;
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a5: (x?: T, y?: T) => T;
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init = () => {
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this.a = () => null; // ok, same T of required params
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this.a = (x?: T) => null; // ok, same T of required params
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this.a = (x: T) => null; // error, too many required params
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~~~~~~
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!!! error TS2322: Type '(x: T) => any' is not assignable to type '() => T'.
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this.a2 = () => null; // ok, same T of required params
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this.a2 = (x?: T) => null; // ok, same T of required params
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this.a2 = (x: T) => null; // ok, same number of params
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this.a3 = () => null; // ok, fewer required params
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this.a3 = (x?: T) => null; // ok, fewer required params
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this.a3 = (x: T) => null; // ok, same T of required params
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this.a3 = (x: T, y: T) => null; // error, too many required params
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~~~~~~~
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!!! error TS2322: Type '(x: T, y: T) => any' is not assignable to type '(x: T) => T'.
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this.a4 = () => null; // ok, fewer required params
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this.a4 = (x?: T, y?: T) => null; // ok, fewer required params
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this.a4 = (x: T) => null; // ok, same T of required params
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this.a4 = (x: T, y: T) => null; // ok, same number of params
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this.a5 = () => null; // ok, fewer required params
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this.a5 = (x?: T, y?: T) => null; // ok, fewer required params
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this.a5 = (x: T) => null; // ok, all present params match
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this.a5 = (x: T, y: T) => null; // ok, same number of params
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}
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}
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}
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module GenericSignaturesInvalid {
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class Base2 {
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a: <T>() => T;
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a2: <T>(x?: T) => T;
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a3: <T>(x: T) => T;
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a4: <T>(x: T, y?: T) => T;
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a5: <T>(x?: T, y?: T) => T;
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}
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class Target<T> {
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a: () => T;
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a2: (x?: T) => T;
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a3: (x: T) => T;
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a4: (x: T, y?: T) => T;
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a5: (x?: T, y?: T) => T;
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}
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function foo<T>() {
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var b: Base2;
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var t: Target<T>;
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// all errors
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b.a = t.a;
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b.a = t.a2;
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b.a = t.a3;
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~~~
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!!! error TS2322: Type '(x: T) => T' is not assignable to type '<T>() => T'.
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b.a = t.a4;
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~~~
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!!! error TS2322: Type '(x: T, y?: T) => T' is not assignable to type '<T>() => T'.
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b.a = t.a5;
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b.a2 = t.a;
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b.a2 = t.a2;
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b.a2 = t.a3;
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b.a2 = t.a4;
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b.a2 = t.a5;
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b.a3 = t.a;
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b.a3 = t.a2;
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b.a3 = t.a3;
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b.a3 = t.a4;
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b.a3 = t.a5;
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b.a4 = t.a;
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b.a4 = t.a2;
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b.a4 = t.a3;
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b.a4 = t.a4;
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b.a4 = t.a5;
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b.a5 = t.a;
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b.a5 = t.a2;
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b.a5 = t.a3;
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b.a5 = t.a4;
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b.a5 = t.a5;
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}
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}
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module GenericSignaturesValid {
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class Base2 {
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a: <T>() => T;
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a2: <T>(x?: T) => T;
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a3: <T>(x: T) => T;
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a4: <T>(x: T, y?: T) => T;
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a5: <T>(x?: T, y?: T) => T;
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init = () => {
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this.a = <T>() => null; // ok, same T of required params
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this.a = <T>(x?: T) => null; // ok, same T of required params
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this.a = <T>(x: T) => null; // error, too many required params
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~~~~~~
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!!! error TS2322: Type '<T>(x: T) => any' is not assignable to type '<T>() => T'.
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this.a2 = <T>() => null; // ok, same T of required params
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this.a2 = <T>(x?: T) => null; // ok, same T of required params
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this.a2 = <T>(x: T) => null; // ok, same number of params
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this.a3 = <T>() => null; // ok, fewer required params
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this.a3 = <T>(x?: T) => null; // ok, fewer required params
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this.a3 = <T>(x: T) => null; // ok, same T of required params
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this.a3 = <T>(x: T, y: T) => null; // error, too many required params
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~~~~~~~
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!!! error TS2322: Type '<T>(x: T, y: T) => any' is not assignable to type '<T>(x: T) => T'.
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this.a4 = <T>() => null; // ok, fewer required params
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this.a4 = <T>(x?: T, y?: T) => null; // ok, fewer required params
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this.a4 = <T>(x: T) => null; // ok, same T of required params
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this.a4 = <T>(x: T, y: T) => null; // ok, same number of params
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this.a5 = <T>() => null; // ok, fewer required params
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this.a5 = <T>(x?: T, y?: T) => null; // ok, fewer required params
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this.a5 = <T>(x: T) => null; // ok, all present params match
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this.a5 = <T>(x: T, y: T) => null; // ok, same number of params
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}
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}
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} |