33 lines
No EOL
654 B
TypeScript
33 lines
No EOL
654 B
TypeScript
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class A {
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propA: number;
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}
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class B {
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propB: number;
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}
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class C extends A {
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propC: number;
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}
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declare function isB(p1): p1 is B;
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declare function isC(p1): p1 is C;
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declare function retC(x): C;
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declare function funA<T>(p1: (p1) => T): T;
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declare function funB<T>(p1: (p1) => T, p2: any): p2 is T;
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declare function funC<T>(p1: (p1) => p1 is T): T;
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declare function funD<T>(p1: (p1) => p1 is T, p2: any): p2 is T;
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declare function funE<T, U>(p1: (p1) => p1 is T, p2: U): T;
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let a: A;
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let test1: boolean = funA(isB);
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if (funB(retC, a)) {
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a.propC;
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}
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let test2: B = funC(isB);
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if (funD(isC, a)) {
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a.propC;
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}
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let test3: B = funE(isB, 1); |