164 lines
3.2 KiB
Plaintext
164 lines
3.2 KiB
Plaintext
=== tests/cases/conformance/interfaces/declarationMerging/twoMergedInterfacesWithDifferingOverloads.ts ===
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// interfaces that merge must not have members that conflict
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interface A {
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>A : A
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foo(x: number): number;
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>foo : { (x: number): number; (x: string): string; (x: Date): Date; }
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>x : number
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foo(x: string): string;
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>foo : { (x: number): number; (x: string): string; (x: Date): Date; }
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>x : string
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}
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interface A {
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>A : A
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foo(x: Date): Date;
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>foo : { (x: number): number; (x: string): string; (x: Date): Date; }
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>x : Date
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>Date : Date
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>Date : Date
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}
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interface B<T> {
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>B : B<T>
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>T : T
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foo(x: T): number;
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>foo : { (x: T): number; (x: string): string; (x: T): Date; (x: Date): string; }
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>x : T
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>T : T
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foo(x: string): string;
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>foo : { (x: T): number; (x: string): string; (x: T): Date; (x: Date): string; }
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>x : string
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}
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interface B<T> {
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>B : B<T>
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>T : T
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foo(x: T): Date;
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>foo : { (x: T): number; (x: string): string; (x: T): Date; (x: Date): string; }
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>x : T
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>T : T
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>Date : Date
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foo(x: Date): string;
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>foo : { (x: T): number; (x: string): string; (x: T): Date; (x: Date): string; }
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>x : Date
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>Date : Date
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}
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var b: B<boolean>;
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>b : B<boolean>
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>B : B<T>
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var r = b.foo(true); // returns Date
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>r : Date
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>b.foo(true) : Date
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>b.foo : { (x: boolean): number; (x: string): string; (x: boolean): Date; (x: Date): string; }
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>b : B<boolean>
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>foo : { (x: boolean): number; (x: string): string; (x: boolean): Date; (x: Date): string; }
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// add generic overload
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interface C<T, U> {
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>C : C<T, U>
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>T : T
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>U : U
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foo(x: T, y: U): string;
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>foo : { (x: T, y: U): string; (x: string, y: string): number; <W>(x: W, y: W): W; }
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>x : T
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>T : T
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>y : U
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>U : U
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foo(x: string, y: string): number;
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>foo : { (x: T, y: U): string; (x: string, y: string): number; <W>(x: W, y: W): W; }
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>x : string
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>y : string
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}
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interface C<T, U> {
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>C : C<T, U>
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>T : T
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>U : U
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foo<W>(x: W, y: W): W;
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>foo : { (x: T, y: U): string; (x: string, y: string): number; <W>(x: W, y: W): W; }
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>W : W
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>x : W
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>W : W
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>y : W
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>W : W
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>W : W
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}
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var c: C<boolean, Date>;
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>c : C<boolean, Date>
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>C : C<T, U>
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>Date : Date
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var r2 = c.foo(1, 2); // number
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>r2 : number
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>c.foo(1, 2) : number
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>c.foo : { (x: boolean, y: Date): string; (x: string, y: string): number; <W>(x: W, y: W): W; }
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>c : C<boolean, Date>
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>foo : { (x: boolean, y: Date): string; (x: string, y: string): number; <W>(x: W, y: W): W; }
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// add generic overload that would be ambiguous
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interface D<T, U> {
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>D : D<T, U>
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>T : T
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>U : U
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a: T;
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>a : T
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>T : T
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b: U;
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>b : U
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>U : U
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foo<A>(x: A, y: A): U;
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>foo : { <A>(x: A, y: A): U; <W>(x: W, y: W): T; }
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>A : A
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>x : A
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>A : A
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>y : A
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>A : A
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>U : U
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}
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interface D<T, U> {
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>D : D<T, U>
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>T : T
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>U : U
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foo<W>(x: W, y: W): T;
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>foo : { <A>(x: A, y: A): U; <W>(x: W, y: W): T; }
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>W : W
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>x : W
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>W : W
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>y : W
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>W : W
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>T : T
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}
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var d: D<boolean, Date>;
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>d : D<boolean, Date>
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>D : D<T, U>
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>Date : Date
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var r3 = d.foo(1, 1); // boolean, last definition wins
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>r3 : boolean
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>d.foo(1, 1) : boolean
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>d.foo : { <A>(x: A, y: A): Date; <W>(x: W, y: W): boolean; }
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>d : D<boolean, Date>
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>foo : { <A>(x: A, y: A): Date; <W>(x: W, y: W): boolean; }
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