//// [extendAndImplementTheSameBaseType2.ts] class C { foo: number bar(): T { return null; } } class D extends C implements C { baz() { } } var d: D = new D(); var r: string = d.foo; var r2: number = d.foo; var r3: string = d.bar(); var r4: number = d.bar(); //// [extendAndImplementTheSameBaseType2.js] var __extends = this.__extends || function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; function __() { this.constructor = d; } __.prototype = b.prototype; d.prototype = new __(); }; var C = (function () { function C() { } C.prototype.bar = function () { return null; }; return C; })(); var D = (function (_super) { __extends(D, _super); function D() { _super.apply(this, arguments); } D.prototype.baz = function () { }; return D; })(C); var d = new D(); var r = d.foo; var r2 = d.foo; var r3 = d.bar(); var r4 = d.bar();