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1 // Copyright 2010 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 |
11 // with the distribution. | 11 // with the distribution. |
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152 // Only if that pushback buffer at the start of buffer_ isn't sufficient | 152 // Only if that pushback buffer at the start of buffer_ isn't sufficient |
153 // is the following used. | 153 // is the following used. |
154 const uc16* pushback_buffer_end_cache_; | 154 const uc16* pushback_buffer_end_cache_; |
155 uc16* pushback_buffer_backing_; | 155 uc16* pushback_buffer_backing_; |
156 unsigned pushback_buffer_backing_size_; | 156 unsigned pushback_buffer_backing_size_; |
157 }; | 157 }; |
158 | 158 |
159 | 159 |
160 class StandAloneJavaScriptScanner : public JavaScriptScanner { | 160 class StandAloneJavaScriptScanner : public JavaScriptScanner { |
161 public: | 161 public: |
162 explicit StandAloneJavaScriptScanner(ScannerConstants* scanner_constants) | 162 explicit StandAloneJavaScriptScanner(UnicodeCache* unicode_cache) |
163 : JavaScriptScanner(scanner_constants) { } | 163 : JavaScriptScanner(unicode_cache) { } |
164 | 164 |
165 void Initialize(UC16CharacterStream* source) { | 165 void Initialize(UC16CharacterStream* source) { |
166 source_ = source; | 166 source_ = source; |
167 Init(); | 167 Init(); |
168 // Skip initial whitespace allowing HTML comment ends just like | 168 // Skip initial whitespace allowing HTML comment ends just like |
169 // after a newline and scan first token. | 169 // after a newline and scan first token. |
170 has_line_terminator_before_next_ = true; | 170 has_line_terminator_before_next_ = true; |
171 SkipWhiteSpace(); | 171 SkipWhiteSpace(); |
172 Scan(); | 172 Scan(); |
173 } | 173 } |
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185 | 185 |
186 } // namespace internal. | 186 } // namespace internal. |
187 | 187 |
188 | 188 |
189 UnicodeInputStream::~UnicodeInputStream() { } | 189 UnicodeInputStream::~UnicodeInputStream() { } |
190 | 190 |
191 | 191 |
192 PreParserData Preparse(UnicodeInputStream* input, size_t max_stack) { | 192 PreParserData Preparse(UnicodeInputStream* input, size_t max_stack) { |
193 internal::InputStreamUTF16Buffer buffer(input); | 193 internal::InputStreamUTF16Buffer buffer(input); |
194 uintptr_t stack_limit = reinterpret_cast<uintptr_t>(&buffer) - max_stack; | 194 uintptr_t stack_limit = reinterpret_cast<uintptr_t>(&buffer) - max_stack; |
195 internal::ScannerConstants scanner_constants; | 195 internal::UnicodeCache unicode_cache; |
196 internal::StandAloneJavaScriptScanner scanner(&scanner_constants); | 196 internal::StandAloneJavaScriptScanner scanner(&unicode_cache); |
197 scanner.Initialize(&buffer); | 197 scanner.Initialize(&buffer); |
198 internal::CompleteParserRecorder recorder; | 198 internal::CompleteParserRecorder recorder; |
199 preparser::PreParser::PreParseResult result = | 199 preparser::PreParser::PreParseResult result = |
200 preparser::PreParser::PreParseProgram(&scanner, | 200 preparser::PreParser::PreParseProgram(&scanner, |
201 &recorder, | 201 &recorder, |
202 true, | 202 true, |
203 stack_limit); | 203 stack_limit); |
204 if (result == preparser::PreParser::kPreParseStackOverflow) { | 204 if (result == preparser::PreParser::kPreParseStackOverflow) { |
205 return PreParserData::StackOverflow(); | 205 return PreParserData::StackOverflow(); |
206 } | 206 } |
207 internal::Vector<unsigned> pre_data = recorder.ExtractData(); | 207 internal::Vector<unsigned> pre_data = recorder.ExtractData(); |
208 size_t size = pre_data.length() * sizeof(pre_data[0]); | 208 size_t size = pre_data.length() * sizeof(pre_data[0]); |
209 unsigned char* data = reinterpret_cast<unsigned char*>(pre_data.start()); | 209 unsigned char* data = reinterpret_cast<unsigned char*>(pre_data.start()); |
210 return PreParserData(size, data); | 210 return PreParserData(size, data); |
211 } | 211 } |
212 | 212 |
213 } // namespace v8. | 213 } // namespace v8. |
214 | 214 |
215 | 215 |
216 // Used by ASSERT macros and other immediate exits. | 216 // Used by ASSERT macros and other immediate exits. |
217 extern "C" void V8_Fatal(const char* file, int line, const char* format, ...) { | 217 extern "C" void V8_Fatal(const char* file, int line, const char* format, ...) { |
218 exit(EXIT_FAILURE); | 218 exit(EXIT_FAILURE); |
219 } | 219 } |
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