1 /* 2 * Copyright (C) 2009 Google Inc. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' 14 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, 15 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS 17 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 18 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 19 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 20 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 21 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 22 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 23 * THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25 26 #ifndef V8PerIsolateData_h 27 #define V8PerIsolateData_h 28 29 #include "bindings/v8/ScopedPersistent.h" 30 #include "bindings/v8/ScriptState.h" 31 #include "bindings/v8/V8HiddenValue.h" 32 #include "bindings/v8/WrapperTypeInfo.h" 33 #include "gin/public/gin_embedders.h" 34 #include "gin/public/isolate_holder.h" 35 #include <v8.h> 36 #include "wtf/Forward.h" 37 #include "wtf/HashMap.h" 38 #include "wtf/OwnPtr.h" 39 #include "wtf/Vector.h" 40 41 namespace WebCore { 42 43 class DOMDataStore; 44 class GCEventData; 45 class StringCache; 46 struct WrapperTypeInfo; 47 48 class ExternalStringVisitor; 49 50 typedef WTF::Vector<DOMDataStore*> DOMDataStoreList; 51 52 class V8PerIsolateData { 53 public: 54 static void ensureInitialized(v8::Isolate*); from(v8::Isolate * isolate)55 static V8PerIsolateData* from(v8::Isolate* isolate) 56 { 57 ASSERT(isolate); 58 ASSERT(isolate->GetData(gin::kEmbedderBlink)); 59 return static_cast<V8PerIsolateData*>(isolate->GetData(gin::kEmbedderBlink)); 60 } 61 static void dispose(v8::Isolate*); 62 static v8::Isolate* mainThreadIsolate(); 63 isolate()64 v8::Isolate* isolate() { return m_isolate; } 65 66 v8::Handle<v8::FunctionTemplate> toStringTemplate(); 67 stringCache()68 StringCache* stringCache() { return m_stringCache.get(); } 69 70 v8::Persistent<v8::Value>& ensureLiveRoot(); 71 recursionLevel()72 int recursionLevel() const { return m_recursionLevel; } incrementRecursionLevel()73 int incrementRecursionLevel() { return ++m_recursionLevel; } decrementRecursionLevel()74 int decrementRecursionLevel() { return --m_recursionLevel; } 75 performingMicrotaskCheckpoint()76 bool performingMicrotaskCheckpoint() const { return m_performingMicrotaskCheckpoint; } setPerformingMicrotaskCheckpoint(bool performingMicrotaskCheckpoint)77 void setPerformingMicrotaskCheckpoint(bool performingMicrotaskCheckpoint) { m_performingMicrotaskCheckpoint = performingMicrotaskCheckpoint; } 78 79 #ifndef NDEBUG internalScriptRecursionLevel()80 int internalScriptRecursionLevel() const { return m_internalScriptRecursionLevel; } incrementInternalScriptRecursionLevel()81 int incrementInternalScriptRecursionLevel() { return ++m_internalScriptRecursionLevel; } decrementInternalScriptRecursionLevel()82 int decrementInternalScriptRecursionLevel() { return --m_internalScriptRecursionLevel; } 83 #endif 84 gcEventData()85 GCEventData* gcEventData() { return m_gcEventData.get(); } hiddenValue()86 V8HiddenValue* hiddenValue() { return m_hiddenValue.get(); } 87 88 v8::Handle<v8::FunctionTemplate> domTemplate(void* domTemplateKey, v8::FunctionCallback = 0, v8::Handle<v8::Value> data = v8::Handle<v8::Value>(), v8::Handle<v8::Signature> = v8::Handle<v8::Signature>(), int length = 0); 89 v8::Handle<v8::FunctionTemplate> existingDOMTemplate(void* domTemplateKey); 90 void setDOMTemplate(void* domTemplateKey, v8::Handle<v8::FunctionTemplate>); 91 92 bool hasInstance(const WrapperTypeInfo*, v8::Handle<v8::Value>); 93 v8::Handle<v8::Object> findInstanceInPrototypeChain(const WrapperTypeInfo*, v8::Handle<v8::Value>); 94 95 v8::Local<v8::Context> ensureScriptRegexpContext(); 96 previousSamplingState()97 const char* previousSamplingState() const { return m_previousSamplingState; } setPreviousSamplingState(const char * name)98 void setPreviousSamplingState(const char* name) { m_previousSamplingState = name; } 99 100 private: 101 explicit V8PerIsolateData(v8::Isolate*); 102 ~V8PerIsolateData(); 103 104 typedef HashMap<const void*, v8::Eternal<v8::FunctionTemplate> > DOMTemplateMap; 105 DOMTemplateMap& currentDOMTemplateMap(); 106 bool hasInstance(const WrapperTypeInfo*, v8::Handle<v8::Value>, DOMTemplateMap&); 107 v8::Handle<v8::Object> findInstanceInPrototypeChain(const WrapperTypeInfo*, v8::Handle<v8::Value>, DOMTemplateMap&); 108 109 v8::Isolate* m_isolate; 110 OwnPtr<gin::IsolateHolder> m_isolateHolder; 111 DOMTemplateMap m_domTemplateMapForMainWorld; 112 DOMTemplateMap m_domTemplateMapForNonMainWorld; 113 ScopedPersistent<v8::FunctionTemplate> m_toStringTemplate; 114 OwnPtr<StringCache> m_stringCache; 115 OwnPtr<V8HiddenValue> m_hiddenValue; 116 ScopedPersistent<v8::Value> m_liveRoot; 117 RefPtr<ScriptState> m_scriptRegexpScriptState; 118 119 const char* m_previousSamplingState; 120 121 bool m_constructorMode; 122 friend class ConstructorMode; 123 124 int m_recursionLevel; 125 126 #ifndef NDEBUG 127 int m_internalScriptRecursionLevel; 128 #endif 129 OwnPtr<GCEventData> m_gcEventData; 130 bool m_performingMicrotaskCheckpoint; 131 }; 132 133 } // namespace WebCore 134 135 #endif // V8PerIsolateData_h 136