//// [es6ClassTest7.ts] declare module M { export class Foo { } } class Bar extends M.Foo { } //// [es6ClassTest7.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 Bar = (function (_super) { __extends(Bar, _super); function Bar() { _super.apply(this, arguments); } return Bar; })(M.Foo);