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Issue 11308066: Rename IsAsciiRepresentation (Closed) Base URL: https://v8.googlecode.com/svn/branches/bleeding_edge
Patch Set: Created 8 years, 1 month ago
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1 // Copyright 2012 the V8 project authors. All rights reserved. 1 // Copyright 2012 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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70 return FLAG_enable_unaligned_accesses && !slow_safe(); 70 return FLAG_enable_unaligned_accesses && !slow_safe();
71 } 71 }
72 72
73 const byte* NativeRegExpMacroAssembler::StringCharacterPosition( 73 const byte* NativeRegExpMacroAssembler::StringCharacterPosition(
74 String* subject, 74 String* subject,
75 int start_index) { 75 int start_index) {
76 // Not just flat, but ultra flat. 76 // Not just flat, but ultra flat.
77 ASSERT(subject->IsExternalString() || subject->IsSeqString()); 77 ASSERT(subject->IsExternalString() || subject->IsSeqString());
78 ASSERT(start_index >= 0); 78 ASSERT(start_index >= 0);
79 ASSERT(start_index <= subject->length()); 79 ASSERT(start_index <= subject->length());
80 if (subject->IsAsciiRepresentation()) { 80 if (subject->IsOneByteRepresentation()) {
81 const byte* address; 81 const byte* address;
82 if (StringShape(subject).IsExternal()) { 82 if (StringShape(subject).IsExternal()) {
83 const char* data = ExternalAsciiString::cast(subject)->GetChars(); 83 const char* data = ExternalAsciiString::cast(subject)->GetChars();
84 address = reinterpret_cast<const byte*>(data); 84 address = reinterpret_cast<const byte*>(data);
85 } else { 85 } else {
86 ASSERT(subject->IsSeqOneByteString()); 86 ASSERT(subject->IsSeqOneByteString());
87 char* data = SeqOneByteString::cast(subject)->GetChars(); 87 char* data = SeqOneByteString::cast(subject)->GetChars();
88 address = reinterpret_cast<const byte*>(data); 88 address = reinterpret_cast<const byte*>(data);
89 } 89 }
90 return address + start_index; 90 return address + start_index;
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126 // full string in the first part. 126 // full string in the first part.
127 if (StringShape(subject_ptr).IsCons()) { 127 if (StringShape(subject_ptr).IsCons()) {
128 ASSERT_EQ(0, ConsString::cast(subject_ptr)->second()->length()); 128 ASSERT_EQ(0, ConsString::cast(subject_ptr)->second()->length());
129 subject_ptr = ConsString::cast(subject_ptr)->first(); 129 subject_ptr = ConsString::cast(subject_ptr)->first();
130 } else if (StringShape(subject_ptr).IsSliced()) { 130 } else if (StringShape(subject_ptr).IsSliced()) {
131 SlicedString* slice = SlicedString::cast(subject_ptr); 131 SlicedString* slice = SlicedString::cast(subject_ptr);
132 subject_ptr = slice->parent(); 132 subject_ptr = slice->parent();
133 slice_offset = slice->offset(); 133 slice_offset = slice->offset();
134 } 134 }
135 // Ensure that an underlying string has the same ASCII-ness. 135 // Ensure that an underlying string has the same ASCII-ness.
136 bool is_ascii = subject_ptr->IsAsciiRepresentation(); 136 bool is_ascii = subject_ptr->IsOneByteRepresentation();
137 ASSERT(subject_ptr->IsExternalString() || subject_ptr->IsSeqString()); 137 ASSERT(subject_ptr->IsExternalString() || subject_ptr->IsSeqString());
138 // String is now either Sequential or External 138 // String is now either Sequential or External
139 int char_size_shift = is_ascii ? 0 : 1; 139 int char_size_shift = is_ascii ? 0 : 1;
140 140
141 const byte* input_start = 141 const byte* input_start =
142 StringCharacterPosition(subject_ptr, start_offset + slice_offset); 142 StringCharacterPosition(subject_ptr, start_offset + slice_offset);
143 int byte_length = char_length << char_size_shift; 143 int byte_length = char_length << char_size_shift;
144 const byte* input_end = input_start + byte_length; 144 const byte* input_end = input_start + byte_length;
145 Result res = Execute(*regexp_code, 145 Result res = Execute(*regexp_code,
146 *subject, 146 *subject,
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263 return NULL; 263 return NULL;
264 } 264 }
265 *stack_base = new_stack_base; 265 *stack_base = new_stack_base;
266 intptr_t stack_content_size = old_stack_base - stack_pointer; 266 intptr_t stack_content_size = old_stack_base - stack_pointer;
267 return new_stack_base - stack_content_size; 267 return new_stack_base - stack_content_size;
268 } 268 }
269 269
270 #endif // V8_INTERPRETED_REGEXP 270 #endif // V8_INTERPRETED_REGEXP
271 271
272 } } // namespace v8::internal 272 } } // namespace v8::internal
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