//// [implementClausePrecedingExtends.ts] class C { foo: number } class D implements C extends C { } //// [implementClausePrecedingExtends.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 C = (function () { function C() { } return C; })(); var D = (function (_super) { __extends(D, _super); function D() { _super.apply(this, arguments); } return D; })(C);