45 lines
1.1 KiB
TypeScript
45 lines
1.1 KiB
TypeScript
//// [genericTypeAssertions2.ts]
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class A<T> { foo(x: T) { } }
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class B<T> extends A<T> {
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bar(): T {
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return null;
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}
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}
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var foo = new A<number>();
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var r: A<string> = <B<string>>new B();
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var r2: A<number> = <B<string>>new B(); // error
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var r3: B<number> = <A<number>>new B(); // error
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var r4: A<number> = <A<number>>new A();
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var r5: A<number> = <A<number>>[]; // error
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//// [genericTypeAssertions2.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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__.prototype = b.prototype;
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d.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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A.prototype.foo = function (x) { };
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return A;
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})();
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var B = (function (_super) {
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__extends(B, _super);
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function B() {
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_super.apply(this, arguments);
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}
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B.prototype.bar = function () {
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return null;
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};
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return B;
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})(A);
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var foo = new A();
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var r = new B();
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var r2 = new B(); // error
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var r3 = new B(); // error
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var r4 = new A();
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var r5 = []; // error
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