85 lines
3 KiB
TypeScript
85 lines
3 KiB
TypeScript
//// [overloadingOnConstants1.ts]
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class Base { foo() { } }
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class Derived1 extends Base { bar() { } }
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class Derived2 extends Base { baz() { } }
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class Derived3 extends Base { biz() { } }
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interface Document2 {
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createElement(tagName: 'canvas'): Derived1;
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createElement(tagName: 'div'): Derived2;
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createElement(tagName: 'span'): Derived3;
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createElement(tagName: string): Base;
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}
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var d2: Document2;
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// these are ok
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var htmlElement: Base = d2.createElement("yo")
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var htmlCanvasElement: Derived1 = d2.createElement("canvas");
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var htmlDivElement: Derived2 = d2.createElement("div");
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var htmlSpanElement: Derived3 = d2.createElement("span");
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// these are errors
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var htmlElement2: Derived1 = d2.createElement("yo")
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var htmlCanvasElement2: Derived3 = d2.createElement("canvas");
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var htmlDivElement2: Derived1 = d2.createElement("div");
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var htmlSpanElement2: Derived1 = d2.createElement("span");
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//// [overloadingOnConstants1.js]
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var __extends = (this && this.__extends) || (function () {
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var extendStatics = function (d, b) {
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extendStatics = Object.setPrototypeOf ||
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({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
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function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
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return extendStatics(d, b);
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};
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return function (d, b) {
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if (typeof b !== "function" && b !== null)
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throw new TypeError("Class extends value " + String(b) + " is not a constructor or null");
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extendStatics(d, b);
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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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})();
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var Base = /** @class */ (function () {
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function Base() {
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}
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Base.prototype.foo = function () { };
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return Base;
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}());
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var Derived1 = /** @class */ (function (_super) {
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__extends(Derived1, _super);
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function Derived1() {
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return _super !== null && _super.apply(this, arguments) || this;
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}
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Derived1.prototype.bar = function () { };
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return Derived1;
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}(Base));
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var Derived2 = /** @class */ (function (_super) {
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__extends(Derived2, _super);
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function Derived2() {
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return _super !== null && _super.apply(this, arguments) || this;
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}
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Derived2.prototype.baz = function () { };
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return Derived2;
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}(Base));
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var Derived3 = /** @class */ (function (_super) {
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__extends(Derived3, _super);
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function Derived3() {
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return _super !== null && _super.apply(this, arguments) || this;
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}
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Derived3.prototype.biz = function () { };
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return Derived3;
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}(Base));
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var d2;
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// these are ok
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var htmlElement = d2.createElement("yo");
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var htmlCanvasElement = d2.createElement("canvas");
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var htmlDivElement = d2.createElement("div");
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var htmlSpanElement = d2.createElement("span");
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// these are errors
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var htmlElement2 = d2.createElement("yo");
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var htmlCanvasElement2 = d2.createElement("canvas");
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var htmlDivElement2 = d2.createElement("div");
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var htmlSpanElement2 = d2.createElement("span");
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