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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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| 418 // internally. | 418 // internally. |
| 419 return (IrregexpNumberOfCaptures(FixedArray::cast(regexp->data())) + 1) * 2; | 419 return (IrregexpNumberOfCaptures(FixedArray::cast(regexp->data())) + 1) * 2; |
| 420 #endif // V8_INTERPRETED_REGEXP | 420 #endif // V8_INTERPRETED_REGEXP |
| 421 } | 421 } |
| 422 | 422 |
| 423 | 423 |
| 424 RegExpImpl::IrregexpResult RegExpImpl::IrregexpExecOnce( | 424 RegExpImpl::IrregexpResult RegExpImpl::IrregexpExecOnce( |
| 425 Handle<JSRegExp> regexp, | 425 Handle<JSRegExp> regexp, |
| 426 Handle<String> subject, | 426 Handle<String> subject, |
| 427 int index, | 427 int index, |
| 428 Vector<int32_t> output) { | 428 Vector<int> output) { |
| 429 Handle<FixedArray> irregexp(FixedArray::cast(regexp->data())); | 429 Handle<FixedArray> irregexp(FixedArray::cast(regexp->data())); |
| 430 | 430 |
| 431 ASSERT(index >= 0); | 431 ASSERT(index >= 0); |
| 432 ASSERT(index <= subject->length()); | 432 ASSERT(index <= subject->length()); |
| 433 ASSERT(subject->IsFlat()); | 433 ASSERT(subject->IsFlat()); |
| 434 | 434 |
| 435 // A flat ASCII string might have a two-byte first part. | 435 // A flat ASCII string might have a two-byte first part. |
| 436 if (subject->IsConsString()) { | 436 if (subject->IsConsString()) { |
| 437 subject = Handle<String>(ConsString::cast(*subject)->first()); | 437 subject = Handle<String>(ConsString::cast(*subject)->first()); |
| 438 } | 438 } |
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| 514 int required_registers = RegExpImpl::IrregexpPrepare(jsregexp, subject); | 514 int required_registers = RegExpImpl::IrregexpPrepare(jsregexp, subject); |
| 515 if (required_registers < 0) { | 515 if (required_registers < 0) { |
| 516 // Compiling failed with an exception. | 516 // Compiling failed with an exception. |
| 517 ASSERT(Top::has_pending_exception()); | 517 ASSERT(Top::has_pending_exception()); |
| 518 return Handle<Object>::null(); | 518 return Handle<Object>::null(); |
| 519 } | 519 } |
| 520 | 520 |
| 521 OffsetsVector registers(required_registers); | 521 OffsetsVector registers(required_registers); |
| 522 | 522 |
| 523 IrregexpResult res = RegExpImpl::IrregexpExecOnce( | 523 IrregexpResult res = RegExpImpl::IrregexpExecOnce( |
| 524 jsregexp, subject, previous_index, Vector<int32_t>(registers.vector(), | 524 jsregexp, subject, previous_index, Vector<int>(registers.vector(), |
| 525 registers.length())); | 525 registers.length())); |
| 526 if (res == RE_SUCCESS) { | 526 if (res == RE_SUCCESS) { |
| 527 int capture_register_count = | 527 int capture_register_count = |
| 528 (IrregexpNumberOfCaptures(FixedArray::cast(jsregexp->data())) + 1) * 2; | 528 (IrregexpNumberOfCaptures(FixedArray::cast(jsregexp->data())) + 1) * 2; |
| 529 last_match_info->EnsureSize(capture_register_count + kLastMatchOverhead); | 529 last_match_info->EnsureSize(capture_register_count + kLastMatchOverhead); |
| 530 AssertNoAllocation no_gc; | 530 AssertNoAllocation no_gc; |
| 531 int* register_vector = registers.vector(); | 531 int* register_vector = registers.vector(); |
| 532 FixedArray* array = FixedArray::cast(last_match_info->elements()); | 532 FixedArray* array = FixedArray::cast(last_match_info->elements()); |
| 533 for (int i = 0; i < capture_register_count; i += 2) { | 533 for (int i = 0; i < capture_register_count; i += 2) { |
| 534 SetCapture(array, i, register_vector[i]); | 534 SetCapture(array, i, register_vector[i]); |
| 535 SetCapture(array, i + 1, register_vector[i + 1]); | 535 SetCapture(array, i + 1, register_vector[i + 1]); |
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| 5331 node, | 5331 node, |
| 5332 data->capture_count, | 5332 data->capture_count, |
| 5333 pattern); | 5333 pattern); |
| 5334 } | 5334 } |
| 5335 | 5335 |
| 5336 | 5336 |
| 5337 int OffsetsVector::static_offsets_vector_[ | 5337 int OffsetsVector::static_offsets_vector_[ |
| 5338 OffsetsVector::kStaticOffsetsVectorSize]; | 5338 OffsetsVector::kStaticOffsetsVectorSize]; |
| 5339 | 5339 |
| 5340 }} // namespace v8::internal | 5340 }} // namespace v8::internal |
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