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| 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-arrays | |
| 6 | |
| 7 // Tests for standard TypedArray array iteration functions. | |
| 8 | |
| 9 var typedArrayConstructors = [ | |
| 10 Uint8Array, | |
| 11 Int8Array, | |
| 12 Uint16Array, | |
| 13 Int16Array, | |
| 14 Uint32Array, | |
| 15 Int32Array, | |
| 16 Uint8ClampedArray, | |
| 17 Float32Array, | |
| 18 Float64Array | |
| 19 ]; | |
| 20 | |
| 21 function assertArrayLikeEquals(expected, value, type) { | |
| 22 assertEquals(value.__proto__, type.prototype); | |
| 23 assertEquals(expected.length, value.length); | |
| 24 for (var i = 0; i < value.length; ++i) { | |
| 25 assertEquals(expected[i], value[i]); | |
| 26 } | |
| 27 } | |
| 28 | |
| 29 for (var constructor of typedArrayConstructors) { | |
| 30 (function TypedArrayFilterTest() { | |
| 31 // Simple use. | |
| 32 var a = new constructor([0, 1]); | |
| 33 assertArrayLikeEquals([0], a.filter(function(n) { return n == 0; }), | |
| 34 constructor); | |
| 35 assertArrayLikeEquals([0, 1], a, constructor); | |
| 36 | |
| 37 // Use specified object as this object when calling the function. | |
| 38 var o = { value: 42 } | |
| 39 a = new constructor([1, 42, 3, 42, 4]); | |
| 40 assertArrayLikeEquals([42, 42], a.filter(function(n) { | |
| 41 return this.value == n | |
| 42 }, o), constructor); | |
| 43 | |
| 44 // Modify original array. | |
| 45 a = new constructor([1, 42, 3, 42, 4]); | |
| 46 assertArrayLikeEquals([42, 42], a.filter(function(n, index, array) { | |
| 47 array[index] = 43; return 42 == n; | |
| 48 }), constructor); | |
| 49 assertArrayLikeEquals([43, 43, 43, 43, 43], a, constructor); | |
| 50 | |
| 51 // Create a new object in each function call when receiver is a | |
| 52 // primitive value. See ECMA-262, Annex C. | |
| 53 a = []; | |
| 54 new constructor([1, 2]).filter(function() { a.push(this) }, ''); | |
| 55 assertTrue(a[0] !== a[1]); | |
| 56 | |
| 57 // Do not create a new object otherwise. | |
| 58 a = []; | |
| 59 new constructor([1, 2]).filter(function() { a.push(this) }, {}); | |
| 60 assertEquals(a[0], a[1]); | |
| 61 | |
| 62 // In strict mode primitive values should not be coerced to an object. | |
| 63 a = []; | |
| 64 new constructor([1, 2]).filter(function() { | |
| 65 'use strict'; | |
| 66 a.push(this); | |
| 67 }, ''); | |
| 68 assertEquals('', a[0]); | |
| 69 assertEquals(a[0], a[1]); | |
| 70 | |
| 71 // Calling this method on other types is a TypeError | |
| 72 assertThrows(function() { | |
| 73 constructor.prototype.filter.call([], function() {}); | |
| 74 }, TypeError); | |
| 75 | |
| 76 // Shadowing the length property doesn't change anything | |
| 77 a = new constructor([1, 2]); | |
| 78 Object.defineProperty(a, 'length', { value: 1 }); | |
| 79 assertArrayLikeEquals([2], a.filter(function(elt) { | |
| 80 return elt == 2; | |
| 81 }), constructor); | |
| 82 })(); | |
| 83 | |
| 84 (function TypedArrayMapTest() { | |
| 85 var a = new constructor([0, 1, 2, 3, 4]); | |
| 86 | |
| 87 // Simple use. | |
| 88 var result = [1, 2, 3, 4, 5]; | |
| 89 assertArrayLikeEquals(result, a.map(function(n) { return n + 1; }), | |
| 90 constructor); | |
| 91 assertEquals(a, a); | |
| 92 | |
| 93 // Use specified object as this object when calling the function. | |
| 94 var o = { delta: 42 } | |
| 95 result = [42, 43, 44, 45, 46]; | |
| 96 assertArrayLikeEquals(result, a.map(function(n) { | |
| 97 return this.delta + n; | |
| 98 }, o), constructor); | |
| 99 | |
| 100 // Modify original array. | |
| 101 a = new constructor([0, 1, 2, 3, 4]); | |
| 102 result = [1, 2, 3, 4, 5]; | |
| 103 assertArrayLikeEquals(result, a.map(function(n, index, array) { | |
| 104 array[index] = n + 1; | |
| 105 return n + 1; | |
| 106 }), constructor); | |
| 107 assertArrayLikeEquals(result, a, constructor); | |
| 108 | |
| 109 // Create a new object in each function call when receiver is a | |
| 110 // primitive value. See ECMA-262, Annex C. | |
| 111 a = []; | |
| 112 new constructor([1, 2]).map(function() { a.push(this) }, ''); | |
| 113 assertTrue(a[0] !== a[1]); | |
| 114 | |
| 115 // Do not create a new object otherwise. | |
| 116 a = []; | |
| 117 new constructor([1, 2]).map(function() { a.push(this) }, {}); | |
| 118 assertEquals(a[0], a[1]); | |
| 119 | |
| 120 // In strict mode primitive values should not be coerced to an object. | |
| 121 a = []; | |
| 122 new constructor([1, 2]).map(function() { 'use strict'; a.push(this); }, ''); | |
| 123 assertEquals('', a[0]); | |
| 124 assertEquals(a[0], a[1]); | |
| 125 | |
| 126 // Test that the result is converted to the right type | |
| 127 assertArrayLikeEquals([3, 3], new constructor([1, 2]).map(function() { | |
| 128 return "3"; | |
| 129 }), constructor); | |
| 130 if (constructor !== Float32Array && constructor !== Float64Array) { | |
| 131 assertArrayLikeEquals([0, 0], new constructor([1, 2]).map(function() { | |
| 132 return NaN; | |
| 133 }), constructor); | |
| 134 } | |
| 135 })(); | |
| 136 | |
| 137 // | |
| 138 // %TypedArray%.prototype.some | |
| 139 // | |
| 140 (function TypedArraySomeTest() { | |
| 141 var a = new constructor([0, 1, 2, 3, 4]); | |
| 142 | |
| 143 // Simple use. | |
| 144 assertTrue(a.some(function(n) { return n == 3})); | |
| 145 assertFalse(a.some(function(n) { return n == 5})); | |
| 146 | |
| 147 // Use specified object as this object when calling the function. | |
| 148 var o = { element: 42 }; | |
| 149 a = new constructor([1, 42, 3]); | |
| 150 assertTrue(a.some(function(n) { return this.element == n; }, o)); | |
| 151 a = new constructor([1]); | |
| 152 assertFalse(a.some(function(n) { return this.element == n; }, o)); | |
| 153 | |
| 154 // Modify original array. | |
| 155 a = new constructor([0, 1, 2, 3]); | |
| 156 assertTrue(a.some(function(n, index, array) { | |
| 157 array[index] = n + 1; | |
| 158 return n == 2; | |
| 159 })); | |
| 160 assertArrayLikeEquals([1, 2, 3, 3], a, constructor); | |
| 161 | |
| 162 // Create a new object in each function call when receiver is a | |
| 163 // primitive value. See ECMA-262, Annex C. | |
| 164 a = []; | |
| 165 new constructor([1, 2]).some(function() { a.push(this) }, ''); | |
| 166 assertTrue(a[0] !== a[1]); | |
| 167 | |
| 168 // Do not create a new object otherwise. | |
| 169 a = []; | |
| 170 new constructor([1, 2]).some(function() { a.push(this) }, {}); | |
| 171 assertEquals(a[0], a[1]); | |
| 172 | |
| 173 // In strict mode primitive values should not be coerced to an object. | |
| 174 a = []; | |
| 175 new constructor([1, 2]).some(function() { | |
| 176 'use strict'; | |
| 177 a.push(this); | |
| 178 }, ''); | |
| 179 assertEquals('', a[0]); | |
| 180 assertEquals(a[0], a[1]); | |
| 181 | |
| 182 // Calling this method on other types is a TypeError | |
| 183 assertThrows(function() { | |
| 184 constructor.prototype.some.call([], function() {}); | |
| 185 }, TypeError); | |
| 186 | |
| 187 // Shadowing the length property doesn't change anything | |
| 188 a = new constructor([1, 2]); | |
| 189 Object.defineProperty(a, 'length', { value: 1 }); | |
| 190 assertEquals(true, a.some(function(elt) { return elt == 2; })); | |
| 191 assertEquals(false, Array.prototype.some.call(a, function(elt) { | |
| 192 return elt == 2; | |
| 193 })); | |
| 194 })(); | |
| 195 | |
| 196 } | |
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