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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 // 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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| 91 | 91 |
| 92 | 92 |
| 93 // Sub-cache for scripts. | 93 // Sub-cache for scripts. |
| 94 class CompilationCacheScript : public CompilationSubCache { | 94 class CompilationCacheScript : public CompilationSubCache { |
| 95 public: | 95 public: |
| 96 CompilationCacheScript(Isolate* isolate, int generations); | 96 CompilationCacheScript(Isolate* isolate, int generations); |
| 97 | 97 |
| 98 Handle<SharedFunctionInfo> Lookup(Handle<String> source, | 98 Handle<SharedFunctionInfo> Lookup(Handle<String> source, |
| 99 Handle<Object> name, | 99 Handle<Object> name, |
| 100 int line_offset, | 100 int line_offset, |
| 101 int column_offset); | 101 int column_offset, |
| 102 void Put(Handle<String> source, Handle<SharedFunctionInfo> function_info); | 102 Handle<Context> context); |
| 103 void Put(Handle<String> source, |
| 104 Handle<Context> context, |
| 105 Handle<SharedFunctionInfo> function_info); |
| 103 | 106 |
| 104 private: | 107 private: |
| 105 MUST_USE_RESULT MaybeObject* TryTablePut( | 108 MUST_USE_RESULT MaybeObject* TryTablePut( |
| 106 Handle<String> source, Handle<SharedFunctionInfo> function_info); | 109 Handle<String> source, |
| 110 Handle<Context> context, |
| 111 Handle<SharedFunctionInfo> function_info); |
| 107 | 112 |
| 108 // Note: Returns a new hash table if operation results in expansion. | 113 // Note: Returns a new hash table if operation results in expansion. |
| 109 Handle<CompilationCacheTable> TablePut( | 114 Handle<CompilationCacheTable> TablePut( |
| 110 Handle<String> source, Handle<SharedFunctionInfo> function_info); | 115 Handle<String> source, |
| 116 Handle<Context> context, |
| 117 Handle<SharedFunctionInfo> function_info); |
| 111 | 118 |
| 112 bool HasOrigin(Handle<SharedFunctionInfo> function_info, | 119 bool HasOrigin(Handle<SharedFunctionInfo> function_info, |
| 113 Handle<Object> name, | 120 Handle<Object> name, |
| 114 int line_offset, | 121 int line_offset, |
| 115 int column_offset); | 122 int column_offset); |
| 116 | 123 |
| 117 void* script_histogram_; | 124 void* script_histogram_; |
| 118 bool script_histogram_initialized_; | 125 bool script_histogram_initialized_; |
| 119 | 126 |
| 120 DISALLOW_IMPLICIT_CONSTRUCTORS(CompilationCacheScript); | 127 DISALLOW_IMPLICIT_CONSTRUCTORS(CompilationCacheScript); |
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| 197 // the source string as the key. For regular expressions the | 204 // the source string as the key. For regular expressions the |
| 198 // compilation data is cached. | 205 // compilation data is cached. |
| 199 class CompilationCache { | 206 class CompilationCache { |
| 200 public: | 207 public: |
| 201 // Finds the script shared function info for a source | 208 // Finds the script shared function info for a source |
| 202 // string. Returns an empty handle if the cache doesn't contain a | 209 // string. Returns an empty handle if the cache doesn't contain a |
| 203 // script for the given source string with the right origin. | 210 // script for the given source string with the right origin. |
| 204 Handle<SharedFunctionInfo> LookupScript(Handle<String> source, | 211 Handle<SharedFunctionInfo> LookupScript(Handle<String> source, |
| 205 Handle<Object> name, | 212 Handle<Object> name, |
| 206 int line_offset, | 213 int line_offset, |
| 207 int column_offset); | 214 int column_offset, |
| 215 Handle<Context> context); |
| 208 | 216 |
| 209 // Finds the shared function info for a source string for eval in a | 217 // Finds the shared function info for a source string for eval in a |
| 210 // given context. Returns an empty handle if the cache doesn't | 218 // given context. Returns an empty handle if the cache doesn't |
| 211 // contain a script for the given source string. | 219 // contain a script for the given source string. |
| 212 Handle<SharedFunctionInfo> LookupEval(Handle<String> source, | 220 Handle<SharedFunctionInfo> LookupEval(Handle<String> source, |
| 213 Handle<Context> context, | 221 Handle<Context> context, |
| 214 bool is_global, | 222 bool is_global, |
| 215 LanguageMode language_mode, | 223 LanguageMode language_mode, |
| 216 int scope_position); | 224 int scope_position); |
| 217 | 225 |
| 218 // Returns the regexp data associated with the given regexp if it | 226 // Returns the regexp data associated with the given regexp if it |
| 219 // is in cache, otherwise an empty handle. | 227 // is in cache, otherwise an empty handle. |
| 220 Handle<FixedArray> LookupRegExp(Handle<String> source, | 228 Handle<FixedArray> LookupRegExp(Handle<String> source, |
| 221 JSRegExp::Flags flags); | 229 JSRegExp::Flags flags); |
| 222 | 230 |
| 223 // Associate the (source, kind) pair to the shared function | 231 // Associate the (source, kind) pair to the shared function |
| 224 // info. This may overwrite an existing mapping. | 232 // info. This may overwrite an existing mapping. |
| 225 void PutScript(Handle<String> source, | 233 void PutScript(Handle<String> source, |
| 234 Handle<Context> context, |
| 226 Handle<SharedFunctionInfo> function_info); | 235 Handle<SharedFunctionInfo> function_info); |
| 227 | 236 |
| 228 // Associate the (source, context->closure()->shared(), kind) triple | 237 // Associate the (source, context->closure()->shared(), kind) triple |
| 229 // with the shared function info. This may overwrite an existing mapping. | 238 // with the shared function info. This may overwrite an existing mapping. |
| 230 void PutEval(Handle<String> source, | 239 void PutEval(Handle<String> source, |
| 231 Handle<Context> context, | 240 Handle<Context> context, |
| 232 bool is_global, | 241 bool is_global, |
| 233 Handle<SharedFunctionInfo> function_info, | 242 Handle<SharedFunctionInfo> function_info, |
| 234 int scope_position); | 243 int scope_position); |
| 235 | 244 |
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| 285 | 294 |
| 286 friend class Isolate; | 295 friend class Isolate; |
| 287 | 296 |
| 288 DISALLOW_COPY_AND_ASSIGN(CompilationCache); | 297 DISALLOW_COPY_AND_ASSIGN(CompilationCache); |
| 289 }; | 298 }; |
| 290 | 299 |
| 291 | 300 |
| 292 } } // namespace v8::internal | 301 } } // namespace v8::internal |
| 293 | 302 |
| 294 #endif // V8_COMPILATION_CACHE_H_ | 303 #endif // V8_COMPILATION_CACHE_H_ |
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