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Side by Side Diff: src/js/spread.js

Issue 2222893002: Move family of MakeError functions to C++ (Closed) Base URL: https://chromium.googlesource.com/v8/v8.git@master
Patch Set: Fix in prologue.js Created 4 years, 4 months ago
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1 // Copyright 2015 the V8 project authors. All rights reserved. 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 2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file. 3 // found in the LICENSE file.
4 4
5 (function(global, utils) { 5 (function(global, utils) {
6 6
7 'use strict'; 7 'use strict';
8 8
9 // ------------------------------------------------------------------- 9 // -------------------------------------------------------------------
10 // Imports 10 // Imports
11 var InternalArray = utils.InternalArray; 11 var InternalArray = utils.InternalArray;
12 var MakeTypeError;
13
14 utils.Import(function(from) {
15 MakeTypeError = from.MakeTypeError;
16 });
17 12
18 // ------------------------------------------------------------------- 13 // -------------------------------------------------------------------
19 14
20 function SpreadArguments() { 15 function SpreadArguments() {
21 var count = arguments.length; 16 var count = arguments.length;
22 var args = new InternalArray(); 17 var args = new InternalArray();
23 18
24 for (var i = 0; i < count; ++i) { 19 for (var i = 0; i < count; ++i) {
25 var array = arguments[i]; 20 var array = arguments[i];
26 var length = array.length; 21 var length = array.length;
27 for (var j = 0; j < length; ++j) { 22 for (var j = 0; j < length; ++j) {
28 args.push(array[j]); 23 args.push(array[j]);
29 } 24 }
30 } 25 }
31 26
32 return args; 27 return args;
33 } 28 }
34 29
35 30
36 function SpreadIterable(collection) { 31 function SpreadIterable(collection) {
37 if (IS_NULL_OR_UNDEFINED(collection)) { 32 if (IS_NULL_OR_UNDEFINED(collection)) {
38 throw MakeTypeError(kNotIterable, collection); 33 throw %make_type_error(kNotIterable, collection);
39 } 34 }
40 35
41 var args = new InternalArray(); 36 var args = new InternalArray();
42 for (var value of collection) { 37 for (var value of collection) {
43 args.push(value); 38 args.push(value);
44 } 39 }
45 return args; 40 return args;
46 } 41 }
47 42
48 // ---------------------------------------------------------------------------- 43 // ----------------------------------------------------------------------------
49 // Exports 44 // Exports
50 45
51 %InstallToContext([ 46 %InstallToContext([
52 "spread_arguments", SpreadArguments, 47 "spread_arguments", SpreadArguments,
53 "spread_iterable", SpreadIterable, 48 "spread_iterable", SpreadIterable,
54 ]); 49 ]);
55 50
56 }) 51 })
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