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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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1716 if (match.is_null()) { | 1716 if (match.is_null()) { |
1717 return Failure::Exception(); | 1717 return Failure::Exception(); |
1718 } | 1718 } |
1719 if (match->IsNull()) { | 1719 if (match->IsNull()) { |
1720 return *subject_handle; | 1720 return *subject_handle; |
1721 } | 1721 } |
1722 | 1722 |
1723 int capture_count = regexp_handle->CaptureCount(); | 1723 int capture_count = regexp_handle->CaptureCount(); |
1724 | 1724 |
1725 // CompiledReplacement uses zone allocation. | 1725 // CompiledReplacement uses zone allocation. |
1726 ZoneScope zone(DELETE_ON_EXIT); | 1726 CompilationZoneScope zone(DELETE_ON_EXIT); |
1727 CompiledReplacement compiled_replacement; | 1727 CompiledReplacement compiled_replacement; |
1728 compiled_replacement.Compile(replacement_handle, | 1728 compiled_replacement.Compile(replacement_handle, |
1729 capture_count, | 1729 capture_count, |
1730 length); | 1730 length); |
1731 | 1731 |
1732 bool is_global = regexp_handle->GetFlags().is_global(); | 1732 bool is_global = regexp_handle->GetFlags().is_global(); |
1733 | 1733 |
1734 // Guessing the number of parts that the final result string is built | 1734 // Guessing the number of parts that the final result string is built |
1735 // from. Global regexps can match any number of times, so we guess | 1735 // from. Global regexps can match any number of times, so we guess |
1736 // conservatively. | 1736 // conservatively. |
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2369 Handle<Object> match = RegExpImpl::Exec(regexp, subject, 0, regexp_info); | 2369 Handle<Object> match = RegExpImpl::Exec(regexp, subject, 0, regexp_info); |
2370 | 2370 |
2371 if (match.is_null()) { | 2371 if (match.is_null()) { |
2372 return Failure::Exception(); | 2372 return Failure::Exception(); |
2373 } | 2373 } |
2374 if (match->IsNull()) { | 2374 if (match->IsNull()) { |
2375 return Heap::null_value(); | 2375 return Heap::null_value(); |
2376 } | 2376 } |
2377 int length = subject->length(); | 2377 int length = subject->length(); |
2378 | 2378 |
2379 ZoneScope zone_space(DELETE_ON_EXIT); | 2379 CompilationZoneScope zone_space(DELETE_ON_EXIT); |
2380 ZoneList<int> offsets(8); | 2380 ZoneList<int> offsets(8); |
2381 do { | 2381 do { |
2382 int start; | 2382 int start; |
2383 int end; | 2383 int end; |
2384 { | 2384 { |
2385 AssertNoAllocation no_alloc; | 2385 AssertNoAllocation no_alloc; |
2386 FixedArray* elements = regexp_info->elements(); | 2386 FixedArray* elements = regexp_info->elements(); |
2387 start = Smi::cast(elements->get(RegExpImpl::kFirstCapture))->value(); | 2387 start = Smi::cast(elements->get(RegExpImpl::kFirstCapture))->value(); |
2388 end = Smi::cast(elements->get(RegExpImpl::kFirstCapture + 1))->value(); | 2388 end = Smi::cast(elements->get(RegExpImpl::kFirstCapture + 1))->value(); |
2389 } | 2389 } |
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7083 } else { | 7083 } else { |
7084 // Handle last resort GC and make sure to allow future allocations | 7084 // Handle last resort GC and make sure to allow future allocations |
7085 // to grow the heap without causing GCs (if possible). | 7085 // to grow the heap without causing GCs (if possible). |
7086 Counters::gc_last_resort_from_js.Increment(); | 7086 Counters::gc_last_resort_from_js.Increment(); |
7087 Heap::CollectAllGarbage(); | 7087 Heap::CollectAllGarbage(); |
7088 } | 7088 } |
7089 } | 7089 } |
7090 | 7090 |
7091 | 7091 |
7092 } } // namespace v8::internal | 7092 } } // namespace v8::internal |
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