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1 // Copyright 2006-2009 the V8 project authors. All rights reserved. | 1 // Copyright 2006-2009 the V8 project authors. All rights reserved. |
2 // Redistribution and use in source and binary forms, with or without | 2 // Redistribution and use in source and binary forms, with or without |
3 // modification, are permitted provided that the following conditions are | 3 // modification, are permitted provided that the following conditions are |
4 // met: | 4 // met: |
5 // | 5 // |
6 // * Redistributions of source code must retain the above copyright | 6 // * Redistributions of source code must retain the above copyright |
7 // notice, this list of conditions and the following disclaimer. | 7 // notice, this list of conditions and the following disclaimer. |
8 // * Redistributions in binary form must reproduce the above | 8 // * Redistributions in binary form must reproduce the above |
9 // copyright notice, this list of conditions and the following | 9 // copyright notice, this list of conditions and the following |
10 // disclaimer in the documentation and/or other materials provided | 10 // disclaimer in the documentation and/or other materials provided |
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179 } | 179 } |
180 | 180 |
181 var cache = regExpCache; | 181 var cache = regExpCache; |
182 var saveAnswer = false; | 182 var saveAnswer = false; |
183 | 183 |
184 if (%_ObjectEquals(cache.type, 'exec') && | 184 if (%_ObjectEquals(cache.type, 'exec') && |
185 %_ObjectEquals(cache.lastIndex, this.lastIndex) && | 185 %_ObjectEquals(cache.lastIndex, this.lastIndex) && |
186 %_IsRegExpEquivalent(cache.regExp, this) && | 186 %_IsRegExpEquivalent(cache.regExp, this) && |
187 %_ObjectEquals(cache.subject, string)) { | 187 %_ObjectEquals(cache.subject, string)) { |
188 if (cache.answerSaved) { | 188 if (cache.answerSaved) { |
| 189 // If this regexp is not global, cache.lastIndex is zero, so we only get |
| 190 // here if this.lastIndex is zero, and resulting this.lastIndex |
| 191 // must be zero too, so no change is necessary. |
| 192 if (this.global) this.lastIndex = lastMatchInfo[CAPTURE1]; |
189 return %_RegExpCloneResult(cache.answer); | 193 return %_RegExpCloneResult(cache.answer); |
190 } else { | 194 } else { |
191 saveAnswer = true; | 195 saveAnswer = true; |
192 } | 196 } |
193 } | 197 } |
194 | 198 |
195 if (%_ArgumentsLength() == 0) { | 199 if (%_ArgumentsLength() == 0) { |
196 var regExpInput = LAST_INPUT(lastMatchInfo); | 200 var regExpInput = LAST_INPUT(lastMatchInfo); |
197 if (IS_UNDEFINED(regExpInput)) { | 201 if (IS_UNDEFINED(regExpInput)) { |
198 throw MakeError('no_input_to_regexp', [this]); | 202 throw MakeError('no_input_to_regexp', [this]); |
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275 } else { | 279 } else { |
276 s = ToString(string); | 280 s = ToString(string); |
277 } | 281 } |
278 | 282 |
279 var lastIndex = this.lastIndex; | 283 var lastIndex = this.lastIndex; |
280 var cache = regExpCache; | 284 var cache = regExpCache; |
281 if (%_ObjectEquals(cache.type, 'test') && | 285 if (%_ObjectEquals(cache.type, 'test') && |
282 %_IsRegExpEquivalent(cache.regExp, this) && | 286 %_IsRegExpEquivalent(cache.regExp, this) && |
283 %_ObjectEquals(cache.subject, string) && | 287 %_ObjectEquals(cache.subject, string) && |
284 %_ObjectEquals(cache.lastIndex, lastIndex)) { | 288 %_ObjectEquals(cache.lastIndex, lastIndex)) { |
| 289 // If this regexp is not global, cache.lastIndex is zero, so we only get |
| 290 // here if this.lastIndex is zero, and resulting this.lastIndex |
| 291 // must be zero too, so no change is necessary. |
| 292 if (this.global) this.lastIndex = lastMatchInfo[CAPTURE1]; |
285 return cache.answer; | 293 return cache.answer; |
286 } | 294 } |
287 | 295 |
288 // Remove irrelevant preceeding '.*' in a test regexp. The expression | 296 // Remove irrelevant preceeding '.*' in a test regexp. The expression |
289 // checks whether this.source starts with '.*' and that the third | 297 // checks whether this.source starts with '.*' and that the third |
290 // char is not a '?' | 298 // char is not a '?' |
291 if (%_StringCharCodeAt(this.source,0) == 46 && // '.' | 299 if (%_StringCharCodeAt(this.source,0) == 46 && // '.' |
292 %_StringCharCodeAt(this.source,1) == 42 && // '*' | 300 %_StringCharCodeAt(this.source,1) == 42 && // '*' |
293 %_StringCharCodeAt(this.source,2) != 63) { // '?' | 301 %_StringCharCodeAt(this.source,2) != 63) { // '?' |
294 if (!%_ObjectEquals(regexp_key, this)) { | 302 if (!%_ObjectEquals(regexp_key, this)) { |
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529 %DefineAccessor($RegExp, "$'", SETTER, NoOpSetter, DONT_ENUM | DONT_DELETE); | 537 %DefineAccessor($RegExp, "$'", SETTER, NoOpSetter, DONT_ENUM | DONT_DELETE); |
530 | 538 |
531 for (var i = 1; i < 10; ++i) { | 539 for (var i = 1; i < 10; ++i) { |
532 %DefineAccessor($RegExp, '$' + i, GETTER, RegExpMakeCaptureGetter(i), DONT_D
ELETE); | 540 %DefineAccessor($RegExp, '$' + i, GETTER, RegExpMakeCaptureGetter(i), DONT_D
ELETE); |
533 %DefineAccessor($RegExp, '$' + i, SETTER, NoOpSetter, DONT_DELETE); | 541 %DefineAccessor($RegExp, '$' + i, SETTER, NoOpSetter, DONT_DELETE); |
534 } | 542 } |
535 } | 543 } |
536 | 544 |
537 | 545 |
538 SetupRegExp(); | 546 SetupRegExp(); |
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