| // Copyright (C) 2015 the V8 project authors. All rights reserved. |
| // This code is governed by the BSD license found in the LICENSE file. |
| |
| /*--- |
| description: Setting `lastIndex` to `0` after a match failure |
| es6id: 21.2.5.6 |
| info: | |
| [...] |
| 5. Let global be ToBoolean(Get(rx, "global")). |
| 6. ReturnIfAbrupt(global). |
| 7. If global is false, then |
| a. Return RegExpExec(rx, S). |
| |
| 21.2.5.2.1 Runtime Semantics: RegExpExec ( R, S ) |
| |
| [...] |
| 7. Return RegExpBuiltinExec(R, S). |
| |
| 21.2.5.2.2 Runtime Semantics: RegExpBuiltinExec ( R, S ) |
| |
| [...] |
| 3. Let length be the number of code units in S. |
| [...] |
| 11. Let matchSucceeded be false. |
| 12. Repeat, while matchSucceeded is false |
| a. If lastIndex > length, then |
| i. If global is true or sticky is true, then |
| 1. Perform ? Set(R, "lastIndex", 0, true). |
| ii. Return null. |
| features: [Symbol.match] |
| ---*/ |
| |
| var r = /a/g; |
| r.lastIndex = 3; |
| |
| r[Symbol.match]('b'); |
| |
| assert.sameValue(r.lastIndex, 0); |