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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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107 // sloppy code even if the calling function is a strict mode function. | 107 // sloppy code even if the calling function is a strict mode function. |
108 // More specifically these are the CompileString, DebugEvaluate and | 108 // More specifically these are the CompileString, DebugEvaluate and |
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 CompilationCacheEval(Isolate* isolate, int generations) | 113 CompilationCacheEval(Isolate* isolate, int generations) |
114 : CompilationSubCache(isolate, generations) { } | 114 : CompilationSubCache(isolate, generations) { } |
115 | 115 |
116 MaybeHandle<SharedFunctionInfo> Lookup(Handle<String> source, | 116 MaybeHandle<SharedFunctionInfo> Lookup(Handle<String> source, |
117 Handle<Context> context, | 117 Handle<SharedFunctionInfo> outer_info, |
118 StrictMode strict_mode, | 118 StrictMode strict_mode, |
119 int scope_position); | 119 int scope_position); |
120 | 120 |
121 void Put(Handle<String> source, | 121 void Put(Handle<String> source, Handle<SharedFunctionInfo> outer_info, |
122 Handle<Context> context, | 122 Handle<SharedFunctionInfo> function_info, int scope_position); |
123 Handle<SharedFunctionInfo> function_info, | |
124 int scope_position); | |
125 | 123 |
126 private: | 124 private: |
127 DISALLOW_IMPLICIT_CONSTRUCTORS(CompilationCacheEval); | 125 DISALLOW_IMPLICIT_CONSTRUCTORS(CompilationCacheEval); |
128 }; | 126 }; |
129 | 127 |
130 | 128 |
131 // Sub-cache for regular expressions. | 129 // Sub-cache for regular expressions. |
132 class CompilationCacheRegExp: public CompilationSubCache { | 130 class CompilationCacheRegExp: public CompilationSubCache { |
133 public: | 131 public: |
134 CompilationCacheRegExp(Isolate* isolate, int generations) | 132 CompilationCacheRegExp(Isolate* isolate, int generations) |
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154 // string. Returns an empty handle if the cache doesn't contain a | 152 // string. Returns an empty handle if the cache doesn't contain a |
155 // script for the given source string with the right origin. | 153 // script for the given source string with the right origin. |
156 MaybeHandle<SharedFunctionInfo> LookupScript( | 154 MaybeHandle<SharedFunctionInfo> LookupScript( |
157 Handle<String> source, Handle<Object> name, int line_offset, | 155 Handle<String> source, Handle<Object> name, int line_offset, |
158 int column_offset, bool is_shared_cross_origin, Handle<Context> context); | 156 int column_offset, bool is_shared_cross_origin, Handle<Context> context); |
159 | 157 |
160 // Finds the shared function info for a source string for eval in a | 158 // Finds the shared function info for a source string for eval in a |
161 // given context. Returns an empty handle if the cache doesn't | 159 // given context. Returns an empty handle if the cache doesn't |
162 // contain a script for the given source string. | 160 // contain a script for the given source string. |
163 MaybeHandle<SharedFunctionInfo> LookupEval( | 161 MaybeHandle<SharedFunctionInfo> LookupEval( |
164 Handle<String> source, Handle<Context> context, StrictMode strict_mode, | 162 Handle<String> source, Handle<SharedFunctionInfo> outer_info, |
165 int scope_position); | 163 Handle<Context> context, StrictMode strict_mode, int scope_position); |
166 | 164 |
167 // Returns the regexp data associated with the given regexp if it | 165 // Returns the regexp data associated with the given regexp if it |
168 // is in cache, otherwise an empty handle. | 166 // is in cache, otherwise an empty handle. |
169 MaybeHandle<FixedArray> LookupRegExp( | 167 MaybeHandle<FixedArray> LookupRegExp( |
170 Handle<String> source, JSRegExp::Flags flags); | 168 Handle<String> source, JSRegExp::Flags flags); |
171 | 169 |
172 // Associate the (source, kind) pair to the shared function | 170 // Associate the (source, kind) pair to the shared function |
173 // info. This may overwrite an existing mapping. | 171 // info. This may overwrite an existing mapping. |
174 void PutScript(Handle<String> source, | 172 void PutScript(Handle<String> source, |
175 Handle<Context> context, | 173 Handle<Context> context, |
176 Handle<SharedFunctionInfo> function_info); | 174 Handle<SharedFunctionInfo> function_info); |
177 | 175 |
178 // Associate the (source, context->closure()->shared(), kind) triple | 176 // Associate the (source, context->closure()->shared(), kind) triple |
179 // with the shared function info. This may overwrite an existing mapping. | 177 // with the shared function info. This may overwrite an existing mapping. |
180 void PutEval(Handle<String> source, | 178 void PutEval(Handle<String> source, Handle<SharedFunctionInfo> outer_info, |
181 Handle<Context> context, | 179 Handle<Context> context, |
182 Handle<SharedFunctionInfo> function_info, | 180 Handle<SharedFunctionInfo> function_info, int scope_position); |
183 int scope_position); | |
184 | 181 |
185 // Associate the (source, flags) pair to the given regexp data. | 182 // Associate the (source, flags) pair to the given regexp data. |
186 // This may overwrite an existing mapping. | 183 // This may overwrite an existing mapping. |
187 void PutRegExp(Handle<String> source, | 184 void PutRegExp(Handle<String> source, |
188 JSRegExp::Flags flags, | 185 JSRegExp::Flags flags, |
189 Handle<FixedArray> data); | 186 Handle<FixedArray> data); |
190 | 187 |
191 // Clear the cache - also used to initialize the cache at startup. | 188 // Clear the cache - also used to initialize the cache at startup. |
192 void Clear(); | 189 void Clear(); |
193 | 190 |
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234 | 231 |
235 friend class Isolate; | 232 friend class Isolate; |
236 | 233 |
237 DISALLOW_COPY_AND_ASSIGN(CompilationCache); | 234 DISALLOW_COPY_AND_ASSIGN(CompilationCache); |
238 }; | 235 }; |
239 | 236 |
240 | 237 |
241 } } // namespace v8::internal | 238 } } // namespace v8::internal |
242 | 239 |
243 #endif // V8_COMPILATION_CACHE_H_ | 240 #endif // V8_COMPILATION_CACHE_H_ |
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