//// [classAbstractCrashedOnce.ts] abstract class foo { protected abstract test(); } class bar extends foo { test() { this. } } var x = new bar(); //// [classAbstractCrashedOnce.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; } d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __()); }; var foo = (function () { function foo() { } return foo; })(); var bar = (function (_super) { __extends(bar, _super); function bar() { _super.apply(this, arguments); } bar.prototype.test = function () { this. ; }; return bar; })(foo); var x = new bar();