// Copyright 2015 the V8 project authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. // // Flags: --harmony-destructuring-bind --harmony-default-parameters (function testExpressionTypes() { "use strict"; ((x, y = x) => assertEquals(42, y))(42); ((x, y = (x)) => assertEquals(42, y))(42); ((x, y = `${x}`) => assertEquals("42", y))(42); ((x, y = x = x + 1) => assertEquals(43, y))(42); ((x, y = x()) => assertEquals(42, y))(() => 42); ((x, y = new x()) => assertEquals(42, y.z))(function() { this.z = 42 }); ((x, y = -x) => assertEquals(-42, y))(42); ((x, y = ++x) => assertEquals(43, y))(42); ((x, y = x === 42) => assertTrue(y))(42); ((x, y = (x == 42 ? x : 0)) => assertEquals(42, y))(42); ((x, y = function() { return x }) => assertEquals(42, y()))(42); ((x, y = () => x) => assertEquals(42, y()))(42); // Literals ((x, y = {z: x}) => assertEquals(42, y.z))(42); ((x, y = {[x]: x}) => assertEquals(42, y[42]))(42); ((x, y = [x]) => assertEquals(42, y[0]))(42); ((x, y = [...x]) => assertEquals(42, y[0]))([42]); ((x, y = class { static [x]() { return x } }) => assertEquals(42, y[42]()))(42); ((x, y = (new class { z() { return x } })) => assertEquals(42, y.z()))(42); ((x, y = (new class Y { static [x]() { return x } z() { return Y[42]() } })) => assertEquals(42, y.z()))(42); ((x, y = (new class { constructor() { this.z = x } })) => assertEquals(42, y.z))(42); ((x, y = (new class Y { constructor() { this.z = x } })) => assertEquals(42, y.z))(42); ((x, y = (new class extends x { })) => assertEquals(42, y.z()))(class { z() { return 42 } }); // Defaults inside destructuring ((x, {y = x}) => assertEquals(42, y))(42, {}); ((x, [y = x]) => assertEquals(42, y))(42, []); })(); (function testMultiScopeCapture() { "use strict"; var x = 1; { let y = 2; ((x, y, a = x, b = y) => { assertEquals(3, x); assertEquals(3, a); assertEquals(4, y); assertEquals(4, b); })(3, 4); } })(); (function testSuper() { "use strict"; class A { x() { return 42; } } class B extends A { y() { ((q = super.x()) => assertEquals(42, q))(); } } new B().y(); class C { constructor() { return { prop: 42 } } } class D extends C{ constructor() { ((q = super()) => assertEquals(42, q.prop))(); } } new D(); })(); (function testScopeFlags() { ((x, y = eval('x')) => assertEquals(42, y))(42); ((x, {y = eval('x')}) => assertEquals(42, y))(42, {}); })();