1 // Copyright 2015 the V8 project authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 (function testExpressionTypes() { 6 "use strict"; 7 ((x, y = x) => assertEquals(42, y))(42); 8 9 ((x, y = (x)) => assertEquals(42, y))(42); 10 ((x, y = `${x}`) => assertEquals("42", y))(42); 11 ((x, y = x = x + 1) => assertEquals(43, y))(42); 12 ((x, y = x()) => assertEquals(42, y))(() => 42); 13 ((x, y = new x()) => assertEquals(42, y.z))(function() { this.z = 42 }); 14 ((x, y = -x) => assertEquals(-42, y))(42); 15 ((x, y = ++x) => assertEquals(43, y))(42); 16 ((x, y = x === 42) => assertTrue(y))(42); 17 ((x, y = (x == 42 ? x : 0)) => assertEquals(42, y))(42); 18 19 ((x, y = function() { return x }) => assertEquals(42, y()))(42); 20 ((x, y = () => x) => assertEquals(42, y()))(42); 21 22 // Literals 23 ((x, y = {z: x}) => assertEquals(42, y.z))(42); 24 ((x, y = {[x]: x}) => assertEquals(42, y[42]))(42); 25 ((x, y = [x]) => assertEquals(42, y[0]))(42); 26 ((x, y = [...x]) => assertEquals(42, y[0]))([42]); 27 28 ((x, y = class { 29 static [x]() { return x } 30 }) => assertEquals(42, y[42]()))(42); 31 ((x, y = (new class { 32 z() { return x } 33 })) => assertEquals(42, y.z()))(42); 34 35 ((x, y = (new class Y { 36 static [x]() { return x } 37 z() { return Y[42]() } 38 })) => assertEquals(42, y.z()))(42); 39 40 ((x, y = (new class { 41 constructor() { this.z = x } 42 })) => assertEquals(42, y.z))(42); 43 ((x, y = (new class Y { 44 constructor() { this.z = x } 45 })) => assertEquals(42, y.z))(42); 46 47 ((x, y = (new class extends x { 48 })) => assertEquals(42, y.z()))(class { z() { return 42 } }); 49 50 // Defaults inside destructuring 51 ((x, {y = x}) => assertEquals(42, y))(42, {}); 52 ((x, [y = x]) => assertEquals(42, y))(42, []); 53 })(); 54 55 56 (function testMultiScopeCapture() { 57 "use strict"; 58 var x = 1; 59 { 60 let y = 2; 61 ((x, y, a = x, b = y) => { 62 assertEquals(3, x); 63 assertEquals(3, a); 64 assertEquals(4, y); 65 assertEquals(4, b); 66 })(3, 4); 67 } 68 })(); 69 70 71 (function testSuper() { 72 "use strict"; 73 class A { 74 x() { return 42; } 75 } 76 77 class B extends A { 78 y() { 79 ((q = super.x()) => assertEquals(42, q))(); 80 } 81 } 82 83 new B().y(); 84 85 class C { 86 constructor() { return { prop: 42 } } 87 } 88 89 class D extends C{ 90 constructor() { 91 ((q = super()) => assertEquals(42, q.prop))(); 92 } 93 } 94 95 new D(); 96 })(); 97 98 99 (function testScopeFlags() { 100 ((x, y = eval('x')) => assertEquals(42, y))(42); 101 ((x, {y = eval('x')}) => assertEquals(42, y))(42, {}); 102 })(); 103
