//// [validUseOfThisInSuper.ts] class Base { constructor(public b: Base) { } } class Super extends Base { constructor() { super((() => this)()); // ok since this is not the case: The constructor declares parameter properties or the containing class declares instance member variables with initializers. } } //// [validUseOfThisInSuper.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 Base = (function () { function Base(b) { this.b = b; } return Base; })(); var Super = (function (_super) { __extends(Super, _super); function Super() { var _this = this; _super.call(this, (function () { return _this; })()); // ok since this is not the case: The constructor declares parameter properties or the containing class declares instance member variables with initializers. } return Super; })(Base);