//// [typeParameterExtendingUnion2.ts] class Animal { run() { } } class Cat extends Animal { meow } class Dog extends Animal { woof } function run(a: Cat | Dog) { a.run(); } function f(a: T) { a.run(); run(a); } //// [typeParameterExtendingUnion2.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 Animal = (function () { function Animal() { } Animal.prototype.run = function () { }; return Animal; })(); var Cat = (function (_super) { __extends(Cat, _super); function Cat() { _super.apply(this, arguments); } return Cat; })(Animal); var Dog = (function (_super) { __extends(Dog, _super); function Dog() { _super.apply(this, arguments); } return Dog; })(Animal); function run(a) { a.run(); } function f(a) { a.run(); run(a); }