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| 1 // Copyright 2008-2009 the V8 project authors. All rights reserved. | 1 // Copyright 2008-2009 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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| 37 namespace internal { | 37 namespace internal { |
| 38 | 38 |
| 39 #ifdef V8_INTERPRETED_REGEXP | 39 #ifdef V8_INTERPRETED_REGEXP |
| 40 | 40 |
| 41 RegExpMacroAssemblerIrregexp::RegExpMacroAssemblerIrregexp(Vector<byte> buffer, | 41 RegExpMacroAssemblerIrregexp::RegExpMacroAssemblerIrregexp(Vector<byte> buffer, |
| 42 Zone* zone) | 42 Zone* zone) |
| 43 : RegExpMacroAssembler(zone), | 43 : RegExpMacroAssembler(zone), |
| 44 buffer_(buffer), | 44 buffer_(buffer), |
| 45 pc_(0), | 45 pc_(0), |
| 46 own_buffer_(false), | 46 own_buffer_(false), |
| 47 advance_current_end_(kInvalidPC) { | 47 advance_current_end_(kInvalidPC), |
| 48 } | 48 isolate_(zone->isolate()) { } |
| 49 | 49 |
| 50 | 50 |
| 51 RegExpMacroAssemblerIrregexp::~RegExpMacroAssemblerIrregexp() { | 51 RegExpMacroAssemblerIrregexp::~RegExpMacroAssemblerIrregexp() { |
| 52 if (backtrack_.is_linked()) backtrack_.Unuse(); | 52 if (backtrack_.is_linked()) backtrack_.Unuse(); |
| 53 if (own_buffer_) buffer_.Dispose(); | 53 if (own_buffer_) buffer_.Dispose(); |
| 54 } | 54 } |
| 55 | 55 |
| 56 | 56 |
| 57 RegExpMacroAssemblerIrregexp::IrregexpImplementation | 57 RegExpMacroAssemblerIrregexp::IrregexpImplementation |
| 58 RegExpMacroAssemblerIrregexp::Implementation() { | 58 RegExpMacroAssemblerIrregexp::Implementation() { |
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| 438 ASSERT(register_index <= kMaxRegister); | 438 ASSERT(register_index <= kMaxRegister); |
| 439 Emit(BC_CHECK_REGISTER_EQ_POS, register_index); | 439 Emit(BC_CHECK_REGISTER_EQ_POS, register_index); |
| 440 EmitOrLink(on_eq); | 440 EmitOrLink(on_eq); |
| 441 } | 441 } |
| 442 | 442 |
| 443 | 443 |
| 444 Handle<HeapObject> RegExpMacroAssemblerIrregexp::GetCode( | 444 Handle<HeapObject> RegExpMacroAssemblerIrregexp::GetCode( |
| 445 Handle<String> source) { | 445 Handle<String> source) { |
| 446 Bind(&backtrack_); | 446 Bind(&backtrack_); |
| 447 Emit(BC_POP_BT, 0); | 447 Emit(BC_POP_BT, 0); |
| 448 Handle<ByteArray> array = FACTORY->NewByteArray(length()); | 448 Handle<ByteArray> array = isolate_->factory()->NewByteArray(length()); |
| 449 Copy(array->GetDataStartAddress()); | 449 Copy(array->GetDataStartAddress()); |
| 450 return array; | 450 return array; |
| 451 } | 451 } |
| 452 | 452 |
| 453 | 453 |
| 454 int RegExpMacroAssemblerIrregexp::length() { | 454 int RegExpMacroAssemblerIrregexp::length() { |
| 455 return pc_; | 455 return pc_; |
| 456 } | 456 } |
| 457 | 457 |
| 458 | 458 |
| 459 void RegExpMacroAssemblerIrregexp::Copy(Address a) { | 459 void RegExpMacroAssemblerIrregexp::Copy(Address a) { |
| 460 OS::MemCopy(a, buffer_.start(), length()); | 460 OS::MemCopy(a, buffer_.start(), length()); |
| 461 } | 461 } |
| 462 | 462 |
| 463 | 463 |
| 464 void RegExpMacroAssemblerIrregexp::Expand() { | 464 void RegExpMacroAssemblerIrregexp::Expand() { |
| 465 bool old_buffer_was_our_own = own_buffer_; | 465 bool old_buffer_was_our_own = own_buffer_; |
| 466 Vector<byte> old_buffer = buffer_; | 466 Vector<byte> old_buffer = buffer_; |
| 467 buffer_ = Vector<byte>::New(old_buffer.length() * 2); | 467 buffer_ = Vector<byte>::New(old_buffer.length() * 2); |
| 468 own_buffer_ = true; | 468 own_buffer_ = true; |
| 469 OS::MemCopy(buffer_.start(), old_buffer.start(), old_buffer.length()); | 469 OS::MemCopy(buffer_.start(), old_buffer.start(), old_buffer.length()); |
| 470 if (old_buffer_was_our_own) { | 470 if (old_buffer_was_our_own) { |
| 471 old_buffer.Dispose(); | 471 old_buffer.Dispose(); |
| 472 } | 472 } |
| 473 } | 473 } |
| 474 | 474 |
| 475 #endif // V8_INTERPRETED_REGEXP | 475 #endif // V8_INTERPRETED_REGEXP |
| 476 | 476 |
| 477 } } // namespace v8::internal | 477 } } // namespace v8::internal |
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