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Issue 1398733002: Move builtin JavaScript sources into own directory. (Closed) Base URL: https://chromium.googlesource.com/v8/v8.git@master
Patch Set: Also move macros.py file. Created 5 years, 2 months ago
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1 // Copyright 2014 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(global, utils) {
6
7 'use strict';
8
9 %CheckIsBootstrapping();
10
11 var GlobalArray = global.Array;
12
13 // -------------------------------------------------------------------
14
15 // Proposed for ES7
16 // https://github.com/tc39/Array.prototype.includes
17 // 46c7532ec8499dea3e51aeb940d09e07547ed3f5
18 function InnerArrayIncludes(searchElement, fromIndex, array, length) {
19 if (length === 0) {
20 return false;
21 }
22
23 var n = TO_INTEGER(fromIndex);
24
25 var k;
26 if (n >= 0) {
27 k = n;
28 } else {
29 k = length + n;
30 if (k < 0) {
31 k = 0;
32 }
33 }
34
35 while (k < length) {
36 var elementK = array[k];
37 if ($sameValueZero(searchElement, elementK)) {
38 return true;
39 }
40
41 ++k;
42 }
43
44 return false;
45 }
46
47
48 function ArrayIncludes(searchElement, fromIndex) {
49 CHECK_OBJECT_COERCIBLE(this, "Array.prototype.includes");
50
51 var array = TO_OBJECT(this);
52 var length = TO_LENGTH(array.length);
53
54 return InnerArrayIncludes(searchElement, fromIndex, array, length);
55 }
56
57
58 function TypedArrayIncludes(searchElement, fromIndex) {
59 if (!%_IsTypedArray(this)) throw MakeTypeError(kNotTypedArray);
60
61 var length = %_TypedArrayGetLength(this);
62
63 return InnerArrayIncludes(searchElement, fromIndex, this, length);
64 }
65
66 // -------------------------------------------------------------------
67
68 %FunctionSetLength(ArrayIncludes, 1);
69 %FunctionSetLength(TypedArrayIncludes, 1);
70
71 // Set up the non-enumerable function on the Array prototype object.
72 utils.InstallFunctions(GlobalArray.prototype, DONT_ENUM, [
73 "includes", ArrayIncludes
74 ]);
75
76 // Set up the non-enumerable function on the typed array prototypes.
77 // This duplicates some of the machinery in harmony-typedarray.js in order to
78 // keep includes behind the separate --harmony-array-includes flag.
79 // TODO(littledan): Fix the TypedArray proto chain (bug v8:4085).
80
81 macro TYPED_ARRAYS(FUNCTION)
82 // arrayIds below should be synchronized with Runtime_TypedArrayInitialize.
83 FUNCTION(Uint8Array)
84 FUNCTION(Int8Array)
85 FUNCTION(Uint16Array)
86 FUNCTION(Int16Array)
87 FUNCTION(Uint32Array)
88 FUNCTION(Int32Array)
89 FUNCTION(Float32Array)
90 FUNCTION(Float64Array)
91 FUNCTION(Uint8ClampedArray)
92 endmacro
93
94 macro DECLARE_GLOBALS(NAME)
95 var GlobalNAME = global.NAME;
96 endmacro
97
98 macro EXTEND_TYPED_ARRAY(NAME)
99 // Set up non-enumerable functions on the prototype object.
100 utils.InstallFunctions(GlobalNAME.prototype, DONT_ENUM, [
101 "includes", TypedArrayIncludes
102 ]);
103 endmacro
104
105 TYPED_ARRAYS(DECLARE_GLOBALS)
106 TYPED_ARRAYS(EXTEND_TYPED_ARRAY)
107
108 })
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