//// [classOrderBug.ts] class bar { public baz: foo; constructor() { this.baz = new foo(); } } class baz {} class foo extends baz {} //// [classOrderBug.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 bar = (function () { function bar() { this.baz = new foo(); } return bar; })(); var baz = (function () { function baz() { } return baz; })(); var foo = (function (_super) { __extends(foo, _super); function foo() { _super.apply(this, arguments); } return foo; })(baz);