69 lines
1.4 KiB
TypeScript
69 lines
1.4 KiB
TypeScript
//// [typeGuardFunctionGenerics.ts]
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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);
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//// [typeGuardFunctionGenerics.js]
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var __extends = (this && this.__extends) || function (d, b) {
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for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
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function __() { this.constructor = d; }
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d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
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};
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var A = (function () {
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function A() {
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}
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return A;
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})();
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var B = (function () {
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function B() {
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}
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return B;
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})();
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var C = (function (_super) {
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__extends(C, _super);
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function C() {
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_super.apply(this, arguments);
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}
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return C;
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})(A);
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var a;
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var test1 = funA(isB);
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if (funB(retC, a)) {
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a.propC;
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}
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var test2 = funC(isB);
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if (funD(isC, a)) {
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a.propC;
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}
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var test3 = funE(isB, 1);
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