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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 namespace v8 { | 8 namespace v8 { |
| 9 namespace internal { | 9 namespace internal { |
| 10 | 10 |
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| 69 | 69 |
| 70 // Sub-cache for scripts. | 70 // Sub-cache for scripts. |
| 71 class CompilationCacheScript : public CompilationSubCache { | 71 class CompilationCacheScript : public CompilationSubCache { |
| 72 public: | 72 public: |
| 73 CompilationCacheScript(Isolate* isolate, int generations); | 73 CompilationCacheScript(Isolate* isolate, int generations); |
| 74 | 74 |
| 75 Handle<SharedFunctionInfo> Lookup(Handle<String> source, Handle<Object> name, | 75 Handle<SharedFunctionInfo> Lookup(Handle<String> source, Handle<Object> name, |
| 76 int line_offset, int column_offset, | 76 int line_offset, int column_offset, |
| 77 bool is_embedder_debug_script, | 77 bool is_embedder_debug_script, |
| 78 bool is_shared_cross_origin, | 78 bool is_shared_cross_origin, |
| 79 Handle<Context> context); | 79 Handle<Context> context, |
| 80 LanguageMode language_mode); |
| 80 void Put(Handle<String> source, | 81 void Put(Handle<String> source, |
| 81 Handle<Context> context, | 82 Handle<Context> context, |
| 83 LanguageMode language_mode, |
| 82 Handle<SharedFunctionInfo> function_info); | 84 Handle<SharedFunctionInfo> function_info); |
| 83 | 85 |
| 84 private: | 86 private: |
| 85 bool HasOrigin(Handle<SharedFunctionInfo> function_info, Handle<Object> name, | 87 bool HasOrigin(Handle<SharedFunctionInfo> function_info, Handle<Object> name, |
| 86 int line_offset, int column_offset, | 88 int line_offset, int column_offset, |
| 87 bool is_embedder_debug_script, bool is_shared_cross_origin); | 89 bool is_embedder_debug_script, bool is_shared_cross_origin); |
| 88 | 90 |
| 89 DISALLOW_IMPLICIT_CONSTRUCTORS(CompilationCacheScript); | 91 DISALLOW_IMPLICIT_CONSTRUCTORS(CompilationCacheScript); |
| 90 }; | 92 }; |
| 91 | 93 |
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| 141 // the source string as the key. For regular expressions the | 143 // the source string as the key. For regular expressions the |
| 142 // compilation data is cached. | 144 // compilation data is cached. |
| 143 class CompilationCache { | 145 class CompilationCache { |
| 144 public: | 146 public: |
| 145 // Finds the script shared function info for a source | 147 // Finds the script shared function info for a source |
| 146 // string. Returns an empty handle if the cache doesn't contain a | 148 // string. Returns an empty handle if the cache doesn't contain a |
| 147 // script for the given source string with the right origin. | 149 // script for the given source string with the right origin. |
| 148 MaybeHandle<SharedFunctionInfo> LookupScript( | 150 MaybeHandle<SharedFunctionInfo> LookupScript( |
| 149 Handle<String> source, Handle<Object> name, int line_offset, | 151 Handle<String> source, Handle<Object> name, int line_offset, |
| 150 int column_offset, bool is_embedder_debug_script, | 152 int column_offset, bool is_embedder_debug_script, |
| 151 bool is_shared_cross_origin, Handle<Context> context); | 153 bool is_shared_cross_origin, Handle<Context> context, |
| 154 LanguageMode language_mode); |
| 152 | 155 |
| 153 // Finds the shared function info for a source string for eval in a | 156 // Finds the shared function info for a source string for eval in a |
| 154 // given context. Returns an empty handle if the cache doesn't | 157 // given context. Returns an empty handle if the cache doesn't |
| 155 // contain a script for the given source string. | 158 // contain a script for the given source string. |
| 156 MaybeHandle<SharedFunctionInfo> LookupEval( | 159 MaybeHandle<SharedFunctionInfo> LookupEval( |
| 157 Handle<String> source, Handle<SharedFunctionInfo> outer_info, | 160 Handle<String> source, Handle<SharedFunctionInfo> outer_info, |
| 158 Handle<Context> context, LanguageMode language_mode, int scope_position); | 161 Handle<Context> context, LanguageMode language_mode, int scope_position); |
| 159 | 162 |
| 160 // Returns the regexp data associated with the given regexp if it | 163 // Returns the regexp data associated with the given regexp if it |
| 161 // is in cache, otherwise an empty handle. | 164 // is in cache, otherwise an empty handle. |
| 162 MaybeHandle<FixedArray> LookupRegExp( | 165 MaybeHandle<FixedArray> LookupRegExp( |
| 163 Handle<String> source, JSRegExp::Flags flags); | 166 Handle<String> source, JSRegExp::Flags flags); |
| 164 | 167 |
| 165 // Associate the (source, kind) pair to the shared function | 168 // Associate the (source, kind) pair to the shared function |
| 166 // info. This may overwrite an existing mapping. | 169 // info. This may overwrite an existing mapping. |
| 167 void PutScript(Handle<String> source, | 170 void PutScript(Handle<String> source, |
| 168 Handle<Context> context, | 171 Handle<Context> context, |
| 172 LanguageMode language_mode, |
| 169 Handle<SharedFunctionInfo> function_info); | 173 Handle<SharedFunctionInfo> function_info); |
| 170 | 174 |
| 171 // Associate the (source, context->closure()->shared(), kind) triple | 175 // Associate the (source, context->closure()->shared(), kind) triple |
| 172 // with the shared function info. This may overwrite an existing mapping. | 176 // with the shared function info. This may overwrite an existing mapping. |
| 173 void PutEval(Handle<String> source, Handle<SharedFunctionInfo> outer_info, | 177 void PutEval(Handle<String> source, Handle<SharedFunctionInfo> outer_info, |
| 174 Handle<Context> context, | 178 Handle<Context> context, |
| 175 Handle<SharedFunctionInfo> function_info, int scope_position); | 179 Handle<SharedFunctionInfo> function_info, int scope_position); |
| 176 | 180 |
| 177 // Associate the (source, flags) pair to the given regexp data. | 181 // Associate the (source, flags) pair to the given regexp data. |
| 178 // This may overwrite an existing mapping. | 182 // This may overwrite an existing mapping. |
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| 226 | 230 |
| 227 friend class Isolate; | 231 friend class Isolate; |
| 228 | 232 |
| 229 DISALLOW_COPY_AND_ASSIGN(CompilationCache); | 233 DISALLOW_COPY_AND_ASSIGN(CompilationCache); |
| 230 }; | 234 }; |
| 231 | 235 |
| 232 | 236 |
| 233 } } // namespace v8::internal | 237 } } // namespace v8::internal |
| 234 | 238 |
| 235 #endif // V8_COMPILATION_CACHE_H_ | 239 #endif // V8_COMPILATION_CACHE_H_ |
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