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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 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 #ifndef V8_COMPILATION_CACHE_H_ | 5 #ifndef V8_COMPILATION_CACHE_H_ |
| 6 #define V8_COMPILATION_CACHE_H_ | 6 #define V8_COMPILATION_CACHE_H_ |
| 7 | 7 |
| 8 #include "src/allocation.h" | 8 #include "src/allocation.h" |
| 9 #include "src/objects.h" | 9 #include "src/objects.h" |
| 10 | 10 |
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| 109 // DebugEvaluateGlobal runtime functions. | 109 // DebugEvaluateGlobal runtime functions. |
| 110 // 4. The start position of the calling scope. | 110 // 4. The start position of the calling scope. |
| 111 class CompilationCacheEval: public CompilationSubCache { | 111 class CompilationCacheEval: public CompilationSubCache { |
| 112 public: | 112 public: |
| 113 explicit CompilationCacheEval(Isolate* isolate) | 113 explicit CompilationCacheEval(Isolate* isolate) |
| 114 : CompilationSubCache(isolate, 1) {} | 114 : CompilationSubCache(isolate, 1) {} |
| 115 | 115 |
| 116 InfoVectorPair Lookup(Handle<String> source, | 116 InfoVectorPair Lookup(Handle<String> source, |
| 117 Handle<SharedFunctionInfo> outer_info, | 117 Handle<SharedFunctionInfo> outer_info, |
| 118 Handle<Context> native_context, | 118 Handle<Context> native_context, |
| 119 LanguageMode language_mode, int scope_position); | 119 LanguageMode language_mode, int position); |
| 120 | 120 |
| 121 void Put(Handle<String> source, Handle<SharedFunctionInfo> outer_info, | 121 void Put(Handle<String> source, Handle<SharedFunctionInfo> outer_info, |
| 122 Handle<SharedFunctionInfo> function_info, | 122 Handle<SharedFunctionInfo> function_info, |
| 123 Handle<Context> native_context, Handle<Cell> literals, | 123 Handle<Context> native_context, Handle<Cell> literals, int position); |
| 124 int scope_position); | |
| 125 | 124 |
| 126 private: | 125 private: |
| 127 DISALLOW_IMPLICIT_CONSTRUCTORS(CompilationCacheEval); | 126 DISALLOW_IMPLICIT_CONSTRUCTORS(CompilationCacheEval); |
| 128 }; | 127 }; |
| 129 | 128 |
| 130 | 129 |
| 131 // Sub-cache for regular expressions. | 130 // Sub-cache for regular expressions. |
| 132 class CompilationCacheRegExp: public CompilationSubCache { | 131 class CompilationCacheRegExp: public CompilationSubCache { |
| 133 public: | 132 public: |
| 134 CompilationCacheRegExp(Isolate* isolate, int generations) | 133 CompilationCacheRegExp(Isolate* isolate, int generations) |
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| 157 ScriptOriginOptions resource_options, | 156 ScriptOriginOptions resource_options, |
| 158 Handle<Context> context, | 157 Handle<Context> context, |
| 159 LanguageMode language_mode); | 158 LanguageMode language_mode); |
| 160 | 159 |
| 161 // Finds the shared function info for a source string for eval in a | 160 // Finds the shared function info for a source string for eval in a |
| 162 // given context. Returns an empty handle if the cache doesn't | 161 // given context. Returns an empty handle if the cache doesn't |
| 163 // contain a script for the given source string. | 162 // contain a script for the given source string. |
| 164 InfoVectorPair LookupEval(Handle<String> source, | 163 InfoVectorPair LookupEval(Handle<String> source, |
| 165 Handle<SharedFunctionInfo> outer_info, | 164 Handle<SharedFunctionInfo> outer_info, |
| 166 Handle<Context> context, LanguageMode language_mode, | 165 Handle<Context> context, LanguageMode language_mode, |
| 167 int scope_position); | 166 int position); |
| 168 | 167 |
| 169 // Returns the regexp data associated with the given regexp if it | 168 // Returns the regexp data associated with the given regexp if it |
| 170 // is in cache, otherwise an empty handle. | 169 // is in cache, otherwise an empty handle. |
| 171 MaybeHandle<FixedArray> LookupRegExp( | 170 MaybeHandle<FixedArray> LookupRegExp( |
| 172 Handle<String> source, JSRegExp::Flags flags); | 171 Handle<String> source, JSRegExp::Flags flags); |
| 173 | 172 |
| 174 // Associate the (source, kind) pair to the shared function | 173 // Associate the (source, kind) pair to the shared function |
| 175 // info. This may overwrite an existing mapping. | 174 // info. This may overwrite an existing mapping. |
| 176 void PutScript(Handle<String> source, Handle<Context> context, | 175 void PutScript(Handle<String> source, Handle<Context> context, |
| 177 LanguageMode language_mode, | 176 LanguageMode language_mode, |
| 178 Handle<SharedFunctionInfo> function_info, | 177 Handle<SharedFunctionInfo> function_info, |
| 179 Handle<Cell> literals); | 178 Handle<Cell> literals); |
| 180 | 179 |
| 181 // Associate the (source, context->closure()->shared(), kind) triple | 180 // Associate the (source, context->closure()->shared(), kind) triple |
| 182 // with the shared function info. This may overwrite an existing mapping. | 181 // with the shared function info. This may overwrite an existing mapping. |
| 183 void PutEval(Handle<String> source, Handle<SharedFunctionInfo> outer_info, | 182 void PutEval(Handle<String> source, Handle<SharedFunctionInfo> outer_info, |
| 184 Handle<Context> context, | 183 Handle<Context> context, |
| 185 Handle<SharedFunctionInfo> function_info, Handle<Cell> literals, | 184 Handle<SharedFunctionInfo> function_info, Handle<Cell> literals, |
| 186 int scope_position); | 185 int position); |
| 187 | 186 |
| 188 // Associate the (source, flags) pair to the given regexp data. | 187 // Associate the (source, flags) pair to the given regexp data. |
| 189 // This may overwrite an existing mapping. | 188 // This may overwrite an existing mapping. |
| 190 void PutRegExp(Handle<String> source, | 189 void PutRegExp(Handle<String> source, |
| 191 JSRegExp::Flags flags, | 190 JSRegExp::Flags flags, |
| 192 Handle<FixedArray> data); | 191 Handle<FixedArray> data); |
| 193 | 192 |
| 194 // Clear the cache - also used to initialize the cache at startup. | 193 // Clear the cache - also used to initialize the cache at startup. |
| 195 void Clear(); | 194 void Clear(); |
| 196 | 195 |
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| 238 friend class Isolate; | 237 friend class Isolate; |
| 239 | 238 |
| 240 DISALLOW_COPY_AND_ASSIGN(CompilationCache); | 239 DISALLOW_COPY_AND_ASSIGN(CompilationCache); |
| 241 }; | 240 }; |
| 242 | 241 |
| 243 | 242 |
| 244 } // namespace internal | 243 } // namespace internal |
| 245 } // namespace v8 | 244 } // namespace v8 |
| 246 | 245 |
| 247 #endif // V8_COMPILATION_CACHE_H_ | 246 #endif // V8_COMPILATION_CACHE_H_ |
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