54 lines
1.2 KiB
TypeScript
54 lines
1.2 KiB
TypeScript
var v1: []; // Error
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var v2: [number];
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var v3: [number, string];
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var v4: [number, [string, string]];
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var t: [number, string];
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var t0 = t[0]; // number
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var t0: number;
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var t1 = t[1]; // string
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var t1: string;
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var t2 = t[2]; // number|string
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var t2: number|string;
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t = []; // Error
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t = [1]; // Error
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t = [1, "hello"]; // Ok
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t = ["hello", 1]; // Error
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t = [1, "hello", 2]; // Error
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var tf: [string, (x: string) => number] = ["hello", x => x.length];
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declare function ff<T, U>(a: T, b: [T, (x: T) => U]): U;
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var ff1 = ff("hello", ["foo", x => x.length]);
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var ff1: number;
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function tuple2<T0, T1>(item0: T0, item1: T1): [T0, T1]{
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return [item0, item1];
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}
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var tt = tuple2(1, "string");
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var tt0 = tt[0];
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var tt0: number;
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var tt1 = tt[1];
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var tt1: string;
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var tt2 = tt[2];
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var tt2: number | string;
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tt = tuple2(1, undefined);
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tt = [1, undefined];
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tt = [undefined, undefined];
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tt = []; // Error
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var a: number[];
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var a1: [number, string];
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var a2: [number, number];
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var a3: [number, {}];
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a = a1; // Error
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a = a2;
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a = a3; // Error
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a1 = a2; // Error
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a1 = a3; // Error
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a3 = a1;
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a3 = a2;
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