//// [classExtendsEveryObjectType2.ts] class C2 extends { foo: string; } { } // error class C6 extends []{ } // error //// [classExtendsEveryObjectType2.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 C2 = (function (_super) { __extends(C2, _super); function C2() { _super.apply(this, arguments); } return C2; })({ foo: string }); // error var C6 = (function (_super) { __extends(C6, _super); function C6() { _super.apply(this, arguments); } return C6; })([]); // error