21 lines
1.1 KiB
Plaintext
21 lines
1.1 KiB
Plaintext
==== tests/cases/compiler/genericCombinators2.ts (2 errors) ====
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interface Collection<T, U> {
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length: number;
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add(x: T, y: U): void;
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remove(x: T, y: U): boolean;
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}
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interface Combinators {
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map<T, U>(c: Collection<T, U>, f: (x: T, y: U) => any): Collection<any, any>;
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map<T, U, V>(c: Collection<T, U>, f: (x: T, y: U) => V): Collection<T, V>;
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}
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var _: Combinators;
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var c2: Collection<number, string>;
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var rf1 = (x: number, y: string) => { return x.toFixed() };
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var r5a = _.map<number, string, Date>(c2, (x, y) => { return x.toFixed() });
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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!!! Argument of type '(x: number, y: string) => string' is not assignable to parameter of type '(x: number, y: string) => Date'.
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var r5b = _.map<number, string, Date>(c2, rf1);
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~~~
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!!! Argument of type '(x: number, y: string) => string' is not assignable to parameter of type '(x: number, y: string) => Date'. |