Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 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 | // Flags: --harmony-function-name |
| 6 | |
| 7 | (function testVariableDeclarationsFunction() { |
| 8 | 'use strict'; |
| 9 | var a = function(){}; |
| 10 | assertEquals('a', a.name); |
| 11 | let b = () => {}; |
| 12 | assertEquals('b', b.name); |
| 13 | const c = ((function(){})); |
| 14 | assertEquals('c', c.name); |
| 15 | |
| 16 | var x = function(){}, y = () => {}, z = function withName() {}; |
| 17 | assertEquals('x', x.name); |
| 18 | assertEquals('y', y.name); |
| 19 | assertEquals('withName', z.name); |
| 20 | })(); |
| 21 | |
| 22 | (function testVariableDeclarationsClass() { |
| 23 | 'use strict'; |
| 24 | var a = class {}; |
| 25 | assertEquals('a', a.name); |
| 26 | let b = ((class {})); |
| 27 | assertEquals('b', b.name); |
| 28 | // Should not overwrite name property. |
| 29 | const c = class { static name() { } } |
| 30 | assertEquals('function', typeof c.name); |
| 31 | |
| 32 | var x = class {}, y = class NamedClass {}; |
| 33 | assertEquals('x', x.name); |
| 34 | assertEquals('NamedClass', y.name); |
| 35 | })(); |
| 36 | |
| 37 | (function testObjectProperties() { |
| 38 | 'use strict'; |
| 39 | var obj = { |
| 40 | a: function() {}, |
| 41 | b: () => {}, |
| 42 | c() { }, |
| 43 | get d() { }, |
| 44 | set d(val) { }, |
| 45 | x: function withName() { }, |
| 46 | y: class { }, |
| 47 | z: class ClassName { }, |
| 48 | 42: function() {}, |
| 49 | 4.2: function() {}, |
| 50 | __proto__: function() {}, |
| 51 | }; |
| 52 | |
| 53 | assertEquals('a', obj.a.name); |
| 54 | assertEquals('b', obj.b.name); |
| 55 | assertEquals('c', obj.c.name); |
| 56 | var dDescriptor = Object.getOwnPropertyDescriptor(obj, 'd'); |
| 57 | assertEquals('get d', dDescriptor.get.name); |
| 58 | assertEquals('set d', dDescriptor.set.name); |
| 59 | assertEquals('withName', obj.x.name); |
| 60 | assertEquals('y', obj.y.name); |
| 61 | assertEquals('ClassName', obj.z.name); |
| 62 | assertEquals('42', obj[42].name); |
| 63 | assertEquals('4.2', obj[4.2].name); |
| 64 | assertEquals('', obj.__proto__.name); |
| 65 | })(); |
| 66 | |
| 67 | (function testClassProperties() { |
| 68 | 'use strict'; |
| 69 | class C { |
| 70 | a() { } |
| 71 | static b() { } |
| 72 | get c() { } |
| 73 | set c(val) { } |
| 74 | 42() { } |
| 75 | static 43() { } |
| 76 | get 44() { } |
| 77 | set 44(val) { } |
| 78 | }; |
| 79 | |
| 80 | assertEquals('a', C.prototype.a.name); |
| 81 | assertEquals('b', C.b.name); |
| 82 | var descriptor = Object.getOwnPropertyDescriptor(C.prototype, 'c'); |
| 83 | assertEquals('get c', descriptor.get.name); |
| 84 | assertEquals('set c', descriptor.set.name); |
| 85 | assertEquals('42', C.prototype[42].name); |
| 86 | assertEquals('43', C[43].name); |
| 87 | var descriptor = Object.getOwnPropertyDescriptor(C.prototype, '44'); |
| 88 | assertEquals('get 44', descriptor.get.name); |
| 89 | assertEquals('set 44', descriptor.set.name); |
| 90 | })(); |
| 91 | |
| 92 | // TODO(adamk): Make computed property names work. |
| 93 | (function testComputedProperties() { |
| 94 | 'use strict'; |
| 95 | var a = 'a'; |
| 96 | var sym1 = Symbol('1'); |
| 97 | var sym2 = Symbol('2'); |
| 98 | var obj = { |
| 99 | [a]: function() {}, |
| 100 | [sym1]: function() {}, |
| 101 | [sym2]: function withName() {}, |
| 102 | }; |
| 103 | |
| 104 | // Should be 'a' |
| 105 | assertEquals('', obj[a].name); |
| 106 | // Should be '[1]' |
| 107 | assertEquals('', obj[sym1].name); |
| 108 | assertEquals('withName', obj[sym2].name); |
| 109 | |
| 110 | class C { |
| 111 | [a]() { } |
| 112 | [sym1]() { } |
| 113 | static [sym2]() { } |
| 114 | } |
| 115 | |
| 116 | // Should be 'a' |
| 117 | assertEquals('', C.prototype[a].name); |
| 118 | // Should be '[1]' |
| 119 | assertEquals('', C.prototype[sym1].name); |
| 120 | // Should be '[2]' |
| 121 | assertEquals('', C[sym2].name); |
| 122 | })(); |
| 123 | |
| 124 | |
| 125 | (function testAssignment() { |
| 126 | var basicFn, arrowFn, generatorFn, classLit; |
| 127 | |
| 128 | basicFn = function() { return true; }; |
| 129 | assertEquals('basicFn', basicFn.name); |
| 130 | var basicFn2 = basicFn; |
| 131 | assertEquals('basicFn', basicFn2.name); |
| 132 | basicFn = function functionWithName() { }; |
| 133 | assertEquals("functionWithName", basicFn.name); |
| 134 | |
| 135 | arrowFn = x => x; |
| 136 | assertEquals('arrowFn', arrowFn.name); |
| 137 | var arrowFn2 = arrowFn; |
| 138 | assertEquals('arrowFn', arrowFn2.name); |
| 139 | |
| 140 | generatorFn = function*() { yield true; }; |
| 141 | assertEquals('generatorFn', generatorFn.name); |
| 142 | var generatorFn2 = generatorFn; |
| 143 | assertEquals('generatorFn', generatorFn2.name); |
| 144 | generatorFn = function* generatorWithName() { }; |
| 145 | assertEquals("generatorWithName", generatorFn.name); |
| 146 | |
| 147 | classLit = class { constructor() {} }; |
| 148 | assertEquals('classLit', classLit.name); |
| 149 | var classLit2 = classLit; |
| 150 | assertEquals('classLit', classLit2.name); |
| 151 | classLit = class classWithName { constructor() {} }; |
| 152 | assertEquals('classWithName', classLit.name); |
| 153 | classLit = class { constructor() {} static name() {} }; |
| 154 | assertEquals('function', typeof classLit.name); |
| 155 | classLit = class { constructor() {} static get name() { return true; } }; |
| 156 | assertTrue(classLit.name); |
| 157 | classLit = class { constructor() {} static ['name']() {} }; |
| 158 | assertEquals('function', typeof classLit.name); |
| 159 | classLit = class { constructor() {} static get ['name']() { return true; } }; |
| 160 | assertTrue(classLit.name); |
| 161 | })(); |