Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame^] | 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 | 'use strict'; |
| 6 | |
| 7 | var $RegExp = global.RegExp; |
| 8 | |
| 9 | // ------------------------------------------------------------------- |
| 10 | |
| 11 | // ES6 draft 12-06-13, section 21.2.5.3 |
| 12 | // + https://bugs.ecmascript.org/show_bug.cgi?id=3423 |
| 13 | function RegExpGetFlags() { |
| 14 | if (!IS_SPEC_OBJECT(this)) { |
| 15 | throw MakeTypeError('flags_getter_non_object', |
| 16 | [%ToString(this)]); |
| 17 | } |
| 18 | var result = ''; |
| 19 | if (this.global) result += 'g'; |
| 20 | if (this.ignoreCase) result += 'i'; |
| 21 | if (this.multiline) result += 'm'; |
| 22 | if (this.unicode) result += 'u'; |
| 23 | if (this.sticky) result += 'y'; |
| 24 | return result; |
| 25 | } |
| 26 | |
| 27 | function ExtendRegExpPrototype() { |
| 28 | %CheckIsBootstrapping(); |
| 29 | |
| 30 | %DefineAccessorPropertyUnchecked($RegExp.prototype, 'flags', RegExpGetFlags, |
| 31 | null, DONT_ENUM); |
| 32 | %SetNativeFlag(RegExpGetFlags); |
| 33 | } |
| 34 | |
| 35 | ExtendRegExpPrototype(); |