//// [thisInSuperCall.ts] class Base { constructor(x: any) {} } class Foo extends Base { constructor() { super(this); // no error } } class Foo2 extends Base { public p = 0; constructor() { super(this); // error } } class Foo3 extends Base { constructor(public p) { super(this); // error } } //// [thisInSuperCall.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(x) { } return Base; })(); var Foo = (function (_super) { __extends(Foo, _super); function Foo() { _super.call(this, this); // no error } return Foo; })(Base); var Foo2 = (function (_super) { __extends(Foo2, _super); function Foo2() { _super.call(this, this); // error this.p = 0; } return Foo2; })(Base); var Foo3 = (function (_super) { __extends(Foo3, _super); function Foo3(p) { _super.call(this, this); // error this.p = p; } return Foo3; })(Base);