53 lines
826 B
TypeScript
53 lines
826 B
TypeScript
interface A {
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(key:string):void;
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}
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interface B extends A {
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(key:'foo'):string;
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}
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var b:B;
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// Should not error
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b('foo').charAt(0);
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interface A {
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(x: 'A1'): string;
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(x: string): void;
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}
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interface B extends A {
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(x: 'B1'): number;
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}
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interface A {
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(x: 'A2'): boolean;
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}
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interface B {
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(x: 'B2'): string[];
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}
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interface C1 extends B {
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(x: 'C1'): number[];
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}
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interface C2 extends B {
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(x: 'C2'): boolean[];
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}
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interface C extends C1, C2 {
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(x: 'C'): string;
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}
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var c: C;
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// none of these lines should error
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var x1: string[] = c('B2');
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var x2: number = c('B1');
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var x3: boolean = c('A2');
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var x4: string = c('A1');
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var x5: void = c('A0');
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var x6: number[] = c('C1');
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var x7: boolean[] = c('C2');
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var x8: string = c('C');
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var x9: void = c('generic');
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