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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 |
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188 int* offsets_vector, | 188 int* offsets_vector, |
189 int offsets_vector_length, | 189 int offsets_vector_length, |
190 int previous_index); | 190 int previous_index); |
191 | 191 |
192 // Compares two-byte strings case insensitively. | 192 // Compares two-byte strings case insensitively. |
193 // Called from generated RegExp code. | 193 // Called from generated RegExp code. |
194 static int CaseInsensitiveCompareUC16(Address byte_offset1, | 194 static int CaseInsensitiveCompareUC16(Address byte_offset1, |
195 Address byte_offset2, | 195 Address byte_offset2, |
196 size_t byte_length); | 196 size_t byte_length); |
197 | 197 |
| 198 // Called from RegExp if the backtrack stack limit is hit. |
| 199 // Tries to expand the stack. Returns the new stack-pointer if |
| 200 // successful, and updates the stack_top address, or returns 0 if unable |
| 201 // to grow the stack. |
| 202 // This function must not trigger a garbage collection. |
| 203 static Address GrowStack(Address stack_pointer, Address* stack_top); |
| 204 |
198 static const byte* StringCharacterPosition(String* subject, int start_index); | 205 static const byte* StringCharacterPosition(String* subject, int start_index); |
199 | 206 |
200 static Result Execute(Code* code, | 207 static Result Execute(Code* code, |
201 String* input, | 208 String* input, |
202 int start_offset, | 209 int start_offset, |
203 const byte* input_start, | 210 const byte* input_start, |
204 const byte* input_end, | 211 const byte* input_end, |
205 int* output, | 212 int* output, |
206 bool at_start); | 213 bool at_start); |
207 }; | 214 }; |
| 215 |
| 216 |
| 217 // Enter C code from generated RegExp code in a way that allows |
| 218 // the C code to fix the return address in case of a GC. |
| 219 // Currently only needed on ARM. |
| 220 class RegExpCEntryStub: public CodeStub { |
| 221 public: |
| 222 RegExpCEntryStub() {} |
| 223 virtual ~RegExpCEntryStub() {} |
| 224 void Generate(MacroAssembler* masm); |
| 225 |
| 226 private: |
| 227 Major MajorKey() { return RegExpCEntry; } |
| 228 int MinorKey() { return 0; } |
| 229 const char* GetName() { return "RegExpCEntryStub"; } |
| 230 }; |
| 231 |
208 #endif // V8_NATIVE_REGEXP | 232 #endif // V8_NATIVE_REGEXP |
| 233 |
209 } } // namespace v8::internal | 234 } } // namespace v8::internal |
210 | 235 |
211 #endif // V8_REGEXP_MACRO_ASSEMBLER_H_ | 236 #endif // V8_REGEXP_MACRO_ASSEMBLER_H_ |
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