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Issue 22715004: Version 3.20.15 (Closed) Base URL: https://v8.googlecode.com/svn/trunk
Patch Set: Add TypedArray API and correctness patches r16033 and r16084 Created 7 years, 4 months ago
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1 // Copyright 2013 the V8 project authors. All rights reserved.
2 // Redistribution and use in source and binary forms, with or without
3 // modification, are permitted provided that the following conditions are
4 // met:
5 //
6 // * Redistributions of source code must retain the above copyright
7 // notice, this list of conditions and the following disclaimer.
8 // * Redistributions in binary form must reproduce the above
9 // copyright notice, this list of conditions and the following
10 // disclaimer in the documentation and/or other materials provided
11 // with the distribution.
12 // * Neither the name of Google Inc. nor the names of its
13 // contributors may be used to endorse or promote products derived
14 // from this software without specific prior written permission.
15 //
16 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
17 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
18 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
19 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
20 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
21 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
22 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
26 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27
28 'use strict';
29
30 // This file relies on the fact that the following declaration has been made
31 // in runtime.js:
32 // var $Array = global.Array;
33
34 // -------------------------------------------------------------------
35
36 // ES6 draft 07-15-13, section 15.4.3.23
37 function ArrayFind(predicate /* thisArg */) { // length == 1
38 if (IS_NULL_OR_UNDEFINED(this) && !IS_UNDETECTABLE(this)) {
39 throw MakeTypeError("called_on_null_or_undefined",
40 ["Array.prototype.find"]);
41 }
42
43 var array = ToObject(this);
44 var length = ToInteger(array.length);
45
46 if (!IS_SPEC_FUNCTION(predicate)) {
47 throw MakeTypeError('called_non_callable', [predicate]);
48 }
49
50 var thisArg;
51 if (%_ArgumentsLength() > 1) {
52 thisArg = %_Arguments(1);
53 }
54
55 if (IS_NULL_OR_UNDEFINED(thisArg)) {
56 thisArg = %GetDefaultReceiver(predicate) || thisArg;
57 } else if (!IS_SPEC_OBJECT(thisArg) && %IsClassicModeFunction(predicate)) {
58 thisArg = ToObject(thisArg);
59 }
60
61 for (var i = 0; i < length; i++) {
62 if (i in array) {
63 var element = array[i];
64 if (%_CallFunction(thisArg, element, i, array, predicate)) {
65 return element;
66 }
67 }
68 }
69
70 return;
71 }
72
73
74 // ES6 draft 07-15-13, section 15.4.3.24
75 function ArrayFindIndex(predicate /* thisArg */) { // length == 1
76 if (IS_NULL_OR_UNDEFINED(this) && !IS_UNDETECTABLE(this)) {
77 throw MakeTypeError("called_on_null_or_undefined",
78 ["Array.prototype.findIndex"]);
79 }
80
81 var array = ToObject(this);
82 var length = ToInteger(array.length);
83
84 if (!IS_SPEC_FUNCTION(predicate)) {
85 throw MakeTypeError('called_non_callable', [predicate]);
86 }
87
88 var thisArg;
89 if (%_ArgumentsLength() > 1) {
90 thisArg = %_Arguments(1);
91 }
92
93 if (IS_NULL_OR_UNDEFINED(thisArg)) {
94 thisArg = %GetDefaultReceiver(predicate) || thisArg;
95 } else if (!IS_SPEC_OBJECT(thisArg) && %IsClassicModeFunction(predicate)) {
96 thisArg = ToObject(thisArg);
97 }
98
99 for (var i = 0; i < length; i++) {
100 if (i in array) {
101 var element = array[i];
102 if (%_CallFunction(thisArg, element, i, array, predicate)) {
103 return i;
104 }
105 }
106 }
107
108 return -1;
109 }
110
111
112 // -------------------------------------------------------------------
113
114 function HarmonyArrayExtendArrayPrototype() {
115 %CheckIsBootstrapping();
116
117 // Set up the non-enumerable functions on the Array prototype object.
118 InstallFunctions($Array.prototype, DONT_ENUM, $Array(
119 "find", ArrayFind,
120 "findIndex", ArrayFindIndex
121 ));
122 }
123
124 HarmonyArrayExtendArrayPrototype();
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