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| 1 // Copyright 2006-2008 the V8 project authors. All rights reserved. | 1 // Copyright 2006-2008 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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| 52 | 52 |
| 53 void Initialize(bool create_heap_objects) { | 53 void Initialize(bool create_heap_objects) { |
| 54 cache_ = create_heap_objects ? Heap::empty_fixed_array() : NULL; | 54 cache_ = create_heap_objects ? Heap::empty_fixed_array() : NULL; |
| 55 } | 55 } |
| 56 | 56 |
| 57 void Iterate(ObjectVisitor* v) { | 57 void Iterate(ObjectVisitor* v) { |
| 58 v->VisitPointer(BitCast<Object**, FixedArray**>(&cache_)); | 58 v->VisitPointer(BitCast<Object**, FixedArray**>(&cache_)); |
| 59 } | 59 } |
| 60 | 60 |
| 61 | 61 |
| 62 bool Lookup(Vector<const char> name, Handle<JSFunction>* handle) { | 62 bool Lookup(Vector<const char> name, Handle<SharedFunctionInfo>* handle) { |
| 63 for (int i = 0; i < cache_->length(); i+=2) { | 63 for (int i = 0; i < cache_->length(); i+=2) { |
| 64 SeqAsciiString* str = SeqAsciiString::cast(cache_->get(i)); | 64 SeqAsciiString* str = SeqAsciiString::cast(cache_->get(i)); |
| 65 if (str->IsEqualTo(name)) { | 65 if (str->IsEqualTo(name)) { |
| 66 *handle = Handle<JSFunction>(JSFunction::cast(cache_->get(i + 1))); | 66 *handle = Handle<SharedFunctionInfo>( |
| 67 SharedFunctionInfo::cast(cache_->get(i + 1))); |
| 67 return true; | 68 return true; |
| 68 } | 69 } |
| 69 } | 70 } |
| 70 return false; | 71 return false; |
| 71 } | 72 } |
| 72 | 73 |
| 73 | 74 |
| 74 void Add(Vector<const char> name, Handle<JSFunction> fun) { | 75 void Add(Vector<const char> name, Handle<SharedFunctionInfo> shared) { |
| 75 ASSERT(fun->IsBoilerplate()); | |
| 76 HandleScope scope; | 76 HandleScope scope; |
| 77 int length = cache_->length(); | 77 int length = cache_->length(); |
| 78 Handle<FixedArray> new_array = | 78 Handle<FixedArray> new_array = |
| 79 Factory::NewFixedArray(length + 2, TENURED); | 79 Factory::NewFixedArray(length + 2, TENURED); |
| 80 cache_->CopyTo(0, *new_array, 0, cache_->length()); | 80 cache_->CopyTo(0, *new_array, 0, cache_->length()); |
| 81 cache_ = *new_array; | 81 cache_ = *new_array; |
| 82 Handle<String> str = Factory::NewStringFromAscii(name, TENURED); | 82 Handle<String> str = Factory::NewStringFromAscii(name, TENURED); |
| 83 cache_->set(length, *str); | 83 cache_->set(length, *str); |
| 84 cache_->set(length + 1, *fun); | 84 cache_->set(length + 1, *shared); |
| 85 Script::cast(fun->shared()->script())->set_type(Smi::FromInt(type_)); | 85 Script::cast(shared->script())->set_type(Smi::FromInt(type_)); |
| 86 } | 86 } |
| 87 | 87 |
| 88 private: | 88 private: |
| 89 Script::Type type_; | 89 Script::Type type_; |
| 90 FixedArray* cache_; | 90 FixedArray* cache_; |
| 91 DISALLOW_COPY_AND_ASSIGN(SourceCodeCache); | 91 DISALLOW_COPY_AND_ASSIGN(SourceCodeCache); |
| 92 }; | 92 }; |
| 93 | 93 |
| 94 static SourceCodeCache extensions_cache(Script::TYPE_EXTENSION); | 94 static SourceCodeCache extensions_cache(Script::TYPE_EXTENSION); |
| 95 // This is for delete, not delete[]. | 95 // This is for delete, not delete[]. |
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| 853 } | 853 } |
| 854 | 854 |
| 855 | 855 |
| 856 bool Genesis::CompileScriptCached(Vector<const char> name, | 856 bool Genesis::CompileScriptCached(Vector<const char> name, |
| 857 Handle<String> source, | 857 Handle<String> source, |
| 858 SourceCodeCache* cache, | 858 SourceCodeCache* cache, |
| 859 v8::Extension* extension, | 859 v8::Extension* extension, |
| 860 Handle<Context> top_context, | 860 Handle<Context> top_context, |
| 861 bool use_runtime_context) { | 861 bool use_runtime_context) { |
| 862 HandleScope scope; | 862 HandleScope scope; |
| 863 Handle<JSFunction> boilerplate; | 863 Handle<SharedFunctionInfo> function_info; |
| 864 | 864 |
| 865 // If we can't find the function in the cache, we compile a new | 865 // If we can't find the function in the cache, we compile a new |
| 866 // function and insert it into the cache. | 866 // function and insert it into the cache. |
| 867 if (cache == NULL || !cache->Lookup(name, &boilerplate)) { | 867 if (cache == NULL || !cache->Lookup(name, &function_info)) { |
| 868 ASSERT(source->IsAsciiRepresentation()); | 868 ASSERT(source->IsAsciiRepresentation()); |
| 869 Handle<String> script_name = Factory::NewStringFromUtf8(name); | 869 Handle<String> script_name = Factory::NewStringFromUtf8(name); |
| 870 boilerplate = Compiler::Compile( | 870 function_info = Compiler::Compile( |
| 871 source, | 871 source, |
| 872 script_name, | 872 script_name, |
| 873 0, | 873 0, |
| 874 0, | 874 0, |
| 875 extension, | 875 extension, |
| 876 NULL, | 876 NULL, |
| 877 Handle<String>::null(), | 877 Handle<String>::null(), |
| 878 use_runtime_context ? NATIVES_CODE : NOT_NATIVES_CODE); | 878 use_runtime_context ? NATIVES_CODE : NOT_NATIVES_CODE); |
| 879 if (boilerplate.is_null()) return false; | 879 if (function_info.is_null()) return false; |
| 880 if (cache != NULL) cache->Add(name, boilerplate); | 880 if (cache != NULL) cache->Add(name, function_info); |
| 881 } | 881 } |
| 882 | 882 |
| 883 // Setup the function context. Conceptually, we should clone the | 883 // Setup the function context. Conceptually, we should clone the |
| 884 // function before overwriting the context but since we're in a | 884 // function before overwriting the context but since we're in a |
| 885 // single-threaded environment it is not strictly necessary. | 885 // single-threaded environment it is not strictly necessary. |
| 886 ASSERT(top_context->IsGlobalContext()); | 886 ASSERT(top_context->IsGlobalContext()); |
| 887 Handle<Context> context = | 887 Handle<Context> context = |
| 888 Handle<Context>(use_runtime_context | 888 Handle<Context>(use_runtime_context |
| 889 ? Handle<Context>(top_context->runtime_context()) | 889 ? Handle<Context>(top_context->runtime_context()) |
| 890 : top_context); | 890 : top_context); |
| 891 Handle<JSFunction> fun = | 891 Handle<JSFunction> fun = |
| 892 Factory::NewFunctionFromBoilerplate(boilerplate, context); | 892 Factory::NewFunctionFromSharedFunctionInfo(function_info, context); |
| 893 | 893 |
| 894 // Call function using either the runtime object or the global | 894 // Call function using either the runtime object or the global |
| 895 // object as the receiver. Provide no parameters. | 895 // object as the receiver. Provide no parameters. |
| 896 Handle<Object> receiver = | 896 Handle<Object> receiver = |
| 897 Handle<Object>(use_runtime_context | 897 Handle<Object>(use_runtime_context |
| 898 ? top_context->builtins() | 898 ? top_context->builtins() |
| 899 : top_context->global()); | 899 : top_context->global()); |
| 900 bool has_pending_exception; | 900 bool has_pending_exception; |
| 901 Handle<Object> result = | 901 Handle<Object> result = |
| 902 Execution::Call(fun, receiver, 0, NULL, &has_pending_exception); | 902 Execution::Call(fun, receiver, 0, NULL, &has_pending_exception); |
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| 1583 } | 1583 } |
| 1584 | 1584 |
| 1585 | 1585 |
| 1586 // Restore statics that are thread local. | 1586 // Restore statics that are thread local. |
| 1587 char* BootstrapperActive::RestoreState(char* from) { | 1587 char* BootstrapperActive::RestoreState(char* from) { |
| 1588 nesting_ = *reinterpret_cast<int*>(from); | 1588 nesting_ = *reinterpret_cast<int*>(from); |
| 1589 return from + sizeof(nesting_); | 1589 return from + sizeof(nesting_); |
| 1590 } | 1590 } |
| 1591 | 1591 |
| 1592 } } // namespace v8::internal | 1592 } } // namespace v8::internal |
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