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Issue 10750: * Update to RegExp parsing and AST. (Closed)
Patch Set: Addressed review comments Created 12 years, 1 month ago
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1 // Copyright 2008 the V8 project authors. All rights reserved. 1 // Copyright 2008 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
(...skipping 14 matching lines...) Expand all
25 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 25 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
26 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 27
28 #include "v8.h" 28 #include "v8.h"
29 #include "regexp-macro-assembler.h" 29 #include "regexp-macro-assembler.h"
30 30
31 namespace v8 { namespace internal { 31 namespace v8 { namespace internal {
32 32
33 33
34 ByteArrayProvider::ByteArrayProvider(int initial_size) 34 ByteArrayProvider::ByteArrayProvider(int initial_size)
35 : byte_array_size_(initial_size), 35 : byte_array_size_(initial_size),
36 current_byte_array_(NULL), 36 current_byte_array_(NULL),
37 current_byte_array_free_offset_(initial_size) {} 37 current_byte_array_free_offset_(initial_size) {}
38 38
39 39
40 template <typename T> 40 template <typename T>
41 ArraySlice<T> ByteArrayProvider::GetBuffer(int size) { 41 ArraySlice<T> ByteArrayProvider::GetBuffer(int size) {
42 ASSERT(sze > 0); 42 ASSERT(sze > 0);
43 size_t elem_size = sizeof(T); 43 size_t elem_size = sizeof(T);
44 size_t byte_size = size * elem_size; 44 size_t byte_size = size * elem_size;
45 int free_offset = current_byte_array_free_offset_; 45 int free_offset = current_byte_array_free_offset_;
46 // align elements 46 // align elements
47 free_offset += elem_size - 1; 47 free_offset += elem_size - 1;
48 free_offset = free_offset - (free_offset % elem_size); 48 free_offset = free_offset - (free_offset % elem_size);
49 49
50 if (free_offset + byte_size > byte_array_size_) { 50 if (free_offset + byte_size > byte_array_size_) {
51 if (byte_size > (byte_array_size_ / 2)) { 51 if (byte_size > (byte_array_size_ / 2)) {
52 Handle<ByteArray> solo_buffer = Factory::NewByteArray(byte_size, TENURED); 52 Handle<ByteArray> solo_buffer = Factory::NewByteArray(byte_size, TENURED);
53 return ArraySlice<T>(solo_buffer, 0); 53 return ArraySlice<T>(solo_buffer, 0);
54 } 54 }
55 current_byte_array_ = Factory::NewByteArray(byte_array_size_, TENURED); 55 current_byte_array_ = Factory::NewByteArray(byte_array_size_, TENURED);
56 free_offset = 0; 56 free_offset = 0;
57 } 57 }
58 current_byte_array_free_offset_ = free_offset + size; 58 current_byte_array_free_offset_ = free_offset + size;
59 return ArraySlice<T>(current_byte_array_, free_offset); 59 return ArraySlice<T>(current_byte_array_, free_offset);
60 } 60 }
61
62 }} 61 }}
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