| // Copyright (C) 2016 the V8 project authors. All rights reserved. |
| // This code is governed by the BSD license found in the LICENSE file. |
| |
| /*--- |
| description: lastIndex is accessed when global is set. |
| es6id: 21.2.5.2.2 |
| info: | |
| 21.2.5.2.2 Runtime Semantics: RegExpBuiltinExec ( R, S ) |
| |
| [...] |
| 4. Let flags be R.[[OriginalFlags]]. |
| 5. If flags contains "g", let global be true, else let global be false. |
| [...] |
| 15. If global is true or sticky is true, then |
| a. Perform ? Set(R, "lastIndex", e, true). |
| ---*/ |
| |
| var lastIndexReads = 0; |
| |
| var r = /./g; |
| r.lastIndex = { |
| valueOf: function() { |
| lastIndexReads++; |
| return 0; |
| } |
| }; |
| |
| var result = r.exec('abc'); |
| assert.sameValue(result.length, 1); |
| assert.sameValue(result[0], 'a'); |
| assert.sameValue(r.lastIndex, 1); |
| assert.sameValue(lastIndexReads, 1); |
| |
