//// [derivedClassWithPrivateInstanceShadowingPublicInstance.ts] class Base { public x: string; public fn(): string { return ''; } public get a() { return 1; } public set a(v) { } } // error, not a subtype class Derived extends Base { private x: string; private fn(): string { return ''; } private get a() { return 1; } private set a(v) { } } var r = Base.x; // ok var r2 = Derived.x; // error var r3 = Base.fn(); // ok var r4 = Derived.fn(); // error var r5 = Base.a; // ok Base.a = 2; // ok var r6 = Derived.a; // error Derived.a = 2; // error //// [derivedClassWithPrivateInstanceShadowingPublicInstance.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() { } Base.prototype.fn = function () { return ''; }; Object.defineProperty(Base.prototype, "a", { get: function () { return 1; }, set: function (v) { }, enumerable: true, configurable: true }); return Base; })(); // error, not a subtype var Derived = (function (_super) { __extends(Derived, _super); function Derived() { _super.apply(this, arguments); } Derived.prototype.fn = function () { return ''; }; Object.defineProperty(Derived.prototype, "a", { get: function () { return 1; }, set: function (v) { }, enumerable: true, configurable: true }); return Derived; })(Base); var r = Base.x; // ok var r2 = Derived.x; // error var r3 = Base.fn(); // ok var r4 = Derived.fn(); // error var r5 = Base.a; // ok Base.a = 2; // ok var r6 = Derived.a; // error Derived.a = 2; // error