//// [genericCallWithObjectTypeArgs2.ts] class Base { x: string; } class Derived extends Base { y: string; } class Derived2 extends Base { z: string; } // returns {}[] function f(a: { x: T; y: U }) { return [a.x, a.y]; } var r = f({ x: new Derived(), y: new Derived2() }); // {}[] var r2 = f({ x: new Base(), y: new Derived2() }); // {}[] function f2(a: { x: T; y: U }) { return (x: T) => a.y; } var r3 = f2({ x: new Derived(), y: new Derived2() }); // Derived => Derived2 interface I { x: T; y: U; } var i: I; var r4 = f2(i); // Base => Derived //// [genericCallWithObjectTypeArgs2.js] var __extends = 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() { } return Base; })(); var Derived = (function (_super) { __extends(Derived, _super); function Derived() { _super.apply(this, arguments); } return Derived; })(Base); var Derived2 = (function (_super) { __extends(Derived2, _super); function Derived2() { _super.apply(this, arguments); } return Derived2; })(Base); // returns {}[] function f(a) { return [a.x, a.y]; } var r = f({ x: new Derived(), y: new Derived2() }); // {}[] var r2 = f({ x: new Base(), y: new Derived2() }); // {}[] function f2(a) { return function (x) { return a.y; }; } var r3 = f2({ x: new Derived(), y: new Derived2() }); // Derived => Derived2 var i; var r4 = f2(i); // Base => Derived