118 lines
3.1 KiB
TypeScript
118 lines
3.1 KiB
TypeScript
//// [propertyAccessOnTypeParameterWithConstraints3.ts]
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// generic types should behave as if they have properties of their constraint type
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class A {
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foo(): string { return ''; }
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}
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class B extends A {
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bar(): string {
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return '';
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}
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}
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class C<U extends A, T extends U> {
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f() {
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var x: T;
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// BUG 823818
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var a = x['foo'](); // should be string
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return a + x.foo();
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}
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g(x: U) {
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// BUG 823818
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var a = x['foo'](); // should be string
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return a + x.foo();
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}
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}
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var r1a = (new C<A, B>()).f();
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var r1b = (new C<A, B>()).g(new B());
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interface I<U extends A, T extends U> {
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foo: T;
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}
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var i: I<A, B>;
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var r2 = i.foo.foo();
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var r2b = i.foo['foo']();
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var a: {
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<U extends A, T extends U>(): T;
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<U extends T, T extends A>(x: U): U;
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}
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var r3 = a().foo(); // error, no inferences for U so it doesn't satisfy constraint
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var r3b = a()['foo']();
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// parameter supplied for type argument inference for U
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var r3c = a(new B()).foo(); // valid call to an invalid function, U is inferred as B, which has a foo
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var r3d = a(new B())['foo'](); // valid call to an invalid function, U is inferred as B, which has a foo
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var b = {
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foo: <U extends A, T extends U>(x: T) => {
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// BUG 823818
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var a = x['foo'](); // should be string
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return a + x.foo();
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}
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}
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var r4 = b.foo(new B()); // valid call to an invalid function
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//// [propertyAccessOnTypeParameterWithConstraints3.js]
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// generic types should behave as if they have properties of their constraint type
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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 () { return ''; };
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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 '';
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};
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return B;
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})(A);
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var C = (function () {
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function C() {
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}
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C.prototype.f = function () {
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var x;
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// BUG 823818
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var a = x['foo'](); // should be string
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return a + x.foo();
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};
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C.prototype.g = function (x) {
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// BUG 823818
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var a = x['foo'](); // should be string
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return a + x.foo();
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};
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return C;
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})();
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var r1a = (new C()).f();
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var r1b = (new C()).g(new B());
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var i;
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var r2 = i.foo.foo();
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var r2b = i.foo['foo']();
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var a;
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var r3 = a().foo(); // error, no inferences for U so it doesn't satisfy constraint
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var r3b = a()['foo']();
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// parameter supplied for type argument inference for U
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var r3c = a(new B()).foo(); // valid call to an invalid function, U is inferred as B, which has a foo
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var r3d = a(new B())['foo'](); // valid call to an invalid function, U is inferred as B, which has a foo
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var b = {
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foo: function (x) {
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// BUG 823818
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var a = x['foo'](); // should be string
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return a + x.foo();
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}
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};
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var r4 = b.foo(new B()); // valid call to an invalid function
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