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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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| 3517 Handle<JSArray> last_match_array, | 3517 Handle<JSArray> last_match_array, |
| 3518 FixedArrayBuilder* builder) { | 3518 FixedArrayBuilder* builder) { |
| 3519 ASSERT(subject->IsFlat()); | 3519 ASSERT(subject->IsFlat()); |
| 3520 int match_start = -1; | 3520 int match_start = -1; |
| 3521 int match_end = 0; | 3521 int match_end = 0; |
| 3522 int pos = 0; | 3522 int pos = 0; |
| 3523 int required_registers = RegExpImpl::IrregexpPrepare(regexp, subject); | 3523 int required_registers = RegExpImpl::IrregexpPrepare(regexp, subject); |
| 3524 if (required_registers < 0) return RegExpImpl::RE_EXCEPTION; | 3524 if (required_registers < 0) return RegExpImpl::RE_EXCEPTION; |
| 3525 | 3525 |
| 3526 OffsetsVector registers(required_registers); | 3526 OffsetsVector registers(required_registers); |
| 3527 Vector<int> register_vector(registers.vector(), registers.length()); | 3527 Vector<int32_t> register_vector(registers.vector(), registers.length()); |
| 3528 int subject_length = subject->length(); | 3528 int subject_length = subject->length(); |
| 3529 | 3529 |
| 3530 for (;;) { // Break on failure, return on exception. | 3530 for (;;) { // Break on failure, return on exception. |
| 3531 RegExpImpl::IrregexpResult result = | 3531 RegExpImpl::IrregexpResult result = |
| 3532 RegExpImpl::IrregexpExecOnce(regexp, | 3532 RegExpImpl::IrregexpExecOnce(regexp, |
| 3533 subject, | 3533 subject, |
| 3534 pos, | 3534 pos, |
| 3535 register_vector); | 3535 register_vector); |
| 3536 if (result == RegExpImpl::RE_SUCCESS) { | 3536 if (result == RegExpImpl::RE_SUCCESS) { |
| 3537 match_start = register_vector[0]; | 3537 match_start = register_vector[0]; |
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| 3579 Handle<String> subject, | 3579 Handle<String> subject, |
| 3580 Handle<JSRegExp> regexp, | 3580 Handle<JSRegExp> regexp, |
| 3581 Handle<JSArray> last_match_array, | 3581 Handle<JSArray> last_match_array, |
| 3582 FixedArrayBuilder* builder) { | 3582 FixedArrayBuilder* builder) { |
| 3583 | 3583 |
| 3584 ASSERT(subject->IsFlat()); | 3584 ASSERT(subject->IsFlat()); |
| 3585 int required_registers = RegExpImpl::IrregexpPrepare(regexp, subject); | 3585 int required_registers = RegExpImpl::IrregexpPrepare(regexp, subject); |
| 3586 if (required_registers < 0) return RegExpImpl::RE_EXCEPTION; | 3586 if (required_registers < 0) return RegExpImpl::RE_EXCEPTION; |
| 3587 | 3587 |
| 3588 OffsetsVector registers(required_registers); | 3588 OffsetsVector registers(required_registers); |
| 3589 Vector<int> register_vector(registers.vector(), registers.length()); | 3589 Vector<int32_t> register_vector(registers.vector(), registers.length()); |
| 3590 | 3590 |
| 3591 RegExpImpl::IrregexpResult result = | 3591 RegExpImpl::IrregexpResult result = |
| 3592 RegExpImpl::IrregexpExecOnce(regexp, | 3592 RegExpImpl::IrregexpExecOnce(regexp, |
| 3593 subject, | 3593 subject, |
| 3594 0, | 3594 0, |
| 3595 register_vector); | 3595 register_vector); |
| 3596 | 3596 |
| 3597 int capture_count = regexp->CaptureCount(); | 3597 int capture_count = regexp->CaptureCount(); |
| 3598 int subject_length = subject->length(); | 3598 int subject_length = subject->length(); |
| 3599 | 3599 |
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| 3639 ASSERT(register_vector[i * 2 + 1] < 0); | 3639 ASSERT(register_vector[i * 2 + 1] < 0); |
| 3640 elements->set(i, Heap::undefined_value()); | 3640 elements->set(i, Heap::undefined_value()); |
| 3641 } | 3641 } |
| 3642 } | 3642 } |
| 3643 elements->set(capture_count + 1, Smi::FromInt(match_start)); | 3643 elements->set(capture_count + 1, Smi::FromInt(match_start)); |
| 3644 elements->set(capture_count + 2, *subject); | 3644 elements->set(capture_count + 2, *subject); |
| 3645 builder->Add(*Factory::NewJSArrayWithElements(elements)); | 3645 builder->Add(*Factory::NewJSArrayWithElements(elements)); |
| 3646 } | 3646 } |
| 3647 // Swap register vectors, so the last successful match is in | 3647 // Swap register vectors, so the last successful match is in |
| 3648 // prev_register_vector. | 3648 // prev_register_vector. |
| 3649 Vector<int> tmp = prev_register_vector; | 3649 Vector<int32_t> tmp = prev_register_vector; |
| 3650 prev_register_vector = register_vector; | 3650 prev_register_vector = register_vector; |
| 3651 register_vector = tmp; | 3651 register_vector = tmp; |
| 3652 | 3652 |
| 3653 if (match_end > match_start) { | 3653 if (match_end > match_start) { |
| 3654 pos = match_end; | 3654 pos = match_end; |
| 3655 } else { | 3655 } else { |
| 3656 pos = match_end + 1; | 3656 pos = match_end + 1; |
| 3657 if (pos > subject_length) { | 3657 if (pos > subject_length) { |
| 3658 break; | 3658 break; |
| 3659 } | 3659 } |
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| 10650 } else { | 10650 } else { |
| 10651 // Handle last resort GC and make sure to allow future allocations | 10651 // Handle last resort GC and make sure to allow future allocations |
| 10652 // to grow the heap without causing GCs (if possible). | 10652 // to grow the heap without causing GCs (if possible). |
| 10653 Counters::gc_last_resort_from_js.Increment(); | 10653 Counters::gc_last_resort_from_js.Increment(); |
| 10654 Heap::CollectAllGarbage(false); | 10654 Heap::CollectAllGarbage(false); |
| 10655 } | 10655 } |
| 10656 } | 10656 } |
| 10657 | 10657 |
| 10658 | 10658 |
| 10659 } } // namespace v8::internal | 10659 } } // namespace v8::internal |
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