//// [genericClasses3.ts] class B { a: T; b: T; } class C extends B { public x: T; } var v2: C ; var y = v2.x; // should be 'string' var u = v2.a; // should be 'string' var z = v2.b; //// [genericClasses3.js] var __extends = (this && 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 B = (function () { function B() { } return B; })(); var C = (function (_super) { __extends(C, _super); function C() { _super.apply(this, arguments); } return C; })(B); var v2; var y = v2.x; // should be 'string' var u = v2.a; // should be 'string' var z = v2.b; //// [genericClasses3.d.ts] declare class B { a: T; b: T; } declare class C extends B { x: T; } declare var v2: C; declare var y: string; declare var u: string; declare var z: string;