OLD | NEW |
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 var $spreadArguments; |
| 6 var $spreadIterable; |
| 7 |
| 8 (function() { |
| 9 |
5 'use strict'; | 10 'use strict'; |
6 | 11 |
7 function SpreadArguments() { | 12 function SpreadArguments() { |
8 var count = %_ArgumentsLength(); | 13 var count = %_ArgumentsLength(); |
9 var args = new InternalArray(); | 14 var args = new InternalArray(); |
10 | 15 |
11 for (var i = 0; i < count; ++i) { | 16 for (var i = 0; i < count; ++i) { |
12 var array = %_Arguments(i); | 17 var array = %_Arguments(i); |
13 var length = array.length; | 18 var length = array.length; |
14 for (var j = 0; j < length; ++j) { | 19 for (var j = 0; j < length; ++j) { |
15 args.push(array[j]); | 20 args.push(array[j]); |
16 } | 21 } |
17 } | 22 } |
18 | 23 |
19 return args; | 24 return args; |
20 } | 25 } |
21 | 26 |
22 | 27 |
23 function SpreadIterable(collection) { | 28 function SpreadIterable(collection) { |
24 if (IS_NULL_OR_UNDEFINED(collection)) { | 29 if (IS_NULL_OR_UNDEFINED(collection)) { |
25 throw MakeTypeError("not_iterable", [collection]); | 30 throw MakeTypeError("not_iterable", [collection]); |
26 } | 31 } |
27 | 32 |
28 var args = new InternalArray(); | 33 var args = new InternalArray(); |
29 for (var value of collection) { | 34 for (var value of collection) { |
30 args.push(value); | 35 args.push(value); |
31 } | 36 } |
32 return args; | 37 return args; |
33 } | 38 } |
| 39 |
| 40 $spreadArguments = SpreadArguments; |
| 41 $spreadIterable = SpreadIterable; |
| 42 |
| 43 })(); |
OLD | NEW |