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1 // Copyright 2011 the V8 project authors. All rights reserved. | 1 // Copyright 2011 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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161 uc16 buffer_[kPushBackSize + kBufferSize]; | 161 uc16 buffer_[kPushBackSize + kBufferSize]; |
162 // Limit of pushbacks before new allocation is necessary. | 162 // Limit of pushbacks before new allocation is necessary. |
163 uc16* pushback_buffer_; | 163 uc16* pushback_buffer_; |
164 // Only if that pushback buffer at the start of buffer_ isn't sufficient | 164 // Only if that pushback buffer at the start of buffer_ isn't sufficient |
165 // is the following used. | 165 // is the following used. |
166 const uc16* pushback_buffer_end_cache_; | 166 const uc16* pushback_buffer_end_cache_; |
167 uc16* pushback_buffer_backing_; | 167 uc16* pushback_buffer_backing_; |
168 unsigned pushback_buffer_backing_size_; | 168 unsigned pushback_buffer_backing_size_; |
169 }; | 169 }; |
170 | 170 |
171 | |
172 // Functions declared by allocation.h and implemented in both api.cc (for v8) | |
173 // or here (for a stand-alone preparser). | |
174 | |
175 void FatalProcessOutOfMemory(const char* reason) { | |
176 V8_Fatal(__FILE__, __LINE__, reason); | |
177 } | |
178 | |
179 bool EnableSlowAsserts() { return true; } | |
180 | |
181 } // namespace internal. | 171 } // namespace internal. |
182 | 172 |
183 | 173 |
184 UnicodeInputStream::~UnicodeInputStream() { } | 174 UnicodeInputStream::~UnicodeInputStream() { } |
185 | 175 |
186 | 176 |
187 PreParserData Preparse(UnicodeInputStream* input, size_t max_stack) { | 177 PreParserData Preparse(UnicodeInputStream* input, size_t max_stack) { |
188 internal::InputStreamUtf16Buffer buffer(input); | 178 internal::InputStreamUtf16Buffer buffer(input); |
189 uintptr_t stack_limit = reinterpret_cast<uintptr_t>(&buffer) - max_stack; | 179 uintptr_t stack_limit = reinterpret_cast<uintptr_t>(&buffer) - max_stack; |
190 internal::UnicodeCache unicode_cache; | 180 internal::UnicodeCache unicode_cache; |
191 internal::Scanner scanner(&unicode_cache); | 181 internal::Scanner scanner(&unicode_cache); |
192 scanner.Initialize(&buffer); | 182 scanner.Initialize(&buffer); |
193 internal::CompleteParserRecorder recorder; | 183 internal::CompleteParserRecorder recorder; |
194 preparser::PreParser preparser(&scanner, &recorder, stack_limit); | 184 preparser::PreParser preparser(&scanner, &recorder, stack_limit); |
195 preparser.set_allow_lazy(true); | 185 preparser.set_allow_lazy(true); |
196 preparser::PreParser::PreParseResult result = preparser.PreParseProgram(); | 186 preparser::PreParser::PreParseResult result = preparser.PreParseProgram(); |
197 if (result == preparser::PreParser::kPreParseStackOverflow) { | 187 if (result == preparser::PreParser::kPreParseStackOverflow) { |
198 return PreParserData::StackOverflow(); | 188 return PreParserData::StackOverflow(); |
199 } | 189 } |
200 internal::Vector<unsigned> pre_data = recorder.ExtractData(); | 190 internal::Vector<unsigned> pre_data = recorder.ExtractData(); |
201 size_t size = pre_data.length() * sizeof(pre_data[0]); | 191 size_t size = pre_data.length() * sizeof(pre_data[0]); |
202 unsigned char* data = reinterpret_cast<unsigned char*>(pre_data.start()); | 192 unsigned char* data = reinterpret_cast<unsigned char*>(pre_data.start()); |
203 return PreParserData(size, data); | 193 return PreParserData(size, data); |
204 } | 194 } |
205 | 195 |
206 } // namespace v8. | 196 } // namespace v8. |
207 | |
208 | |
209 // Used by ASSERT macros and other immediate exits. | |
210 extern "C" void V8_Fatal(const char* file, int line, const char* format, ...) { | |
211 exit(EXIT_FAILURE); | |
212 } | |
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