| /* |
| * Copyright (C) 2009 Google Inc. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * |
| * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' |
| * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, |
| * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS |
| * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
| * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF |
| * THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #include "config.h" |
| #include "bindings/v8/V8PerIsolateData.h" |
| |
| #include "bindings/v8/DOMDataStore.h" |
| #include "bindings/v8/ScriptGCEvent.h" |
| #include "bindings/v8/ScriptProfiler.h" |
| #include "bindings/v8/V8Binding.h" |
| #include "bindings/v8/V8HiddenPropertyName.h" |
| #include "bindings/v8/V8ObjectConstructor.h" |
| #include "core/dom/WebCoreMemoryInstrumentation.h" |
| #include "wtf/MemoryInstrumentationHashMap.h" |
| #include "wtf/MemoryInstrumentationVector.h" |
| |
| namespace WTF { |
| |
| // WrapperTypeInfo are statically allocated, don't count them. |
| template<> struct SequenceMemoryInstrumentationTraits<WebCore::WrapperTypeInfo*> { |
| template <typename I> static void reportMemoryUsage(I, I, MemoryClassInfo&) { } |
| }; |
| |
| } |
| |
| namespace WebCore { |
| |
| V8PerIsolateData::V8PerIsolateData(v8::Isolate* isolate) |
| : m_isolate(isolate) |
| , m_stringCache(adoptPtr(new StringCache())) |
| , m_integerCache(adoptPtr(new IntegerCache())) |
| , m_workerDomDataStore(0) |
| , m_hiddenPropertyName(adoptPtr(new V8HiddenPropertyName())) |
| , m_constructorMode(ConstructorMode::CreateNewObject) |
| , m_recursionLevel(0) |
| #ifndef NDEBUG |
| , m_internalScriptRecursionLevel(0) |
| #endif |
| , m_gcEventData(adoptPtr(new GCEventData())) |
| , m_shouldCollectGarbageSoon(false) |
| { |
| m_v8Null.set(isolate, v8::Null(isolate)); |
| } |
| |
| V8PerIsolateData::~V8PerIsolateData() |
| { |
| } |
| |
| V8PerIsolateData* V8PerIsolateData::create(v8::Isolate* isolate) |
| { |
| ASSERT(isolate); |
| ASSERT(!isolate->GetData()); |
| V8PerIsolateData* data = new V8PerIsolateData(isolate); |
| isolate->SetData(data); |
| return data; |
| } |
| |
| void V8PerIsolateData::ensureInitialized(v8::Isolate* isolate) |
| { |
| ASSERT(isolate); |
| if (!isolate->GetData()) |
| create(isolate); |
| } |
| |
| v8::Persistent<v8::Value> V8PerIsolateData::ensureLiveRoot() |
| { |
| if (m_liveRoot.isEmpty()) |
| m_liveRoot.set(m_isolate, v8::Null()); |
| return m_liveRoot.get(); |
| } |
| |
| void V8PerIsolateData::dispose(v8::Isolate* isolate) |
| { |
| void* data = isolate->GetData(); |
| delete static_cast<V8PerIsolateData*>(data); |
| isolate->SetData(0); |
| } |
| |
| v8::Handle<v8::FunctionTemplate> V8PerIsolateData::toStringTemplate() |
| { |
| if (m_toStringTemplate.isEmpty()) |
| m_toStringTemplate.set(m_isolate, v8::FunctionTemplate::New(constructorOfToString)); |
| return v8::Local<v8::FunctionTemplate>::New(m_toStringTemplate.get()); |
| } |
| |
| void V8PerIsolateData::reportMemoryUsage(MemoryObjectInfo* memoryObjectInfo) const |
| { |
| MemoryClassInfo info(memoryObjectInfo, this, WebCoreMemoryTypes::Binding); |
| info.addMember(m_rawTemplatesForMainWorld, "rawTemplatesForMainWorld"); |
| info.addMember(m_rawTemplatesForNonMainWorld, "rawTemplatesForNonMainWorld"); |
| info.addMember(m_templatesForMainWorld, "templatesForMainWorld"); |
| info.addMember(m_templatesForNonMainWorld, "templatesForNonMainWorld"); |
| info.addMember(m_stringCache, "stringCache"); |
| info.addMember(m_integerCache, "integerCache"); |
| info.addMember(m_domDataList, "domDataList"); |
| info.addMember(m_workerDomDataStore, "workerDomDataStore"); |
| info.addMember(m_hiddenPropertyName, "hiddenPropertyName"); |
| info.addMember(m_gcEventData, "gcEventData"); |
| |
| info.addPrivateBuffer(ScriptProfiler::profilerSnapshotsSize(), WebCoreMemoryTypes::InspectorProfilerAgent, "HeapSnapshots", "snapshots"); |
| |
| info.ignoreMember(m_toStringTemplate); |
| info.ignoreMember(m_lazyEventListenerToStringTemplate); |
| info.ignoreMember(m_v8Null); |
| info.ignoreMember(m_liveRoot); |
| info.ignoreMember(m_regexContext); |
| } |
| |
| bool V8PerIsolateData::hasPrivateTemplate(WrapperWorldType currentWorldType, void* privatePointer) |
| { |
| if (currentWorldType == MainWorld) |
| return m_templatesForMainWorld.find(privatePointer) != m_templatesForMainWorld.end(); |
| return m_templatesForNonMainWorld.find(privatePointer) != m_templatesForNonMainWorld.end(); |
| } |
| |
| v8::Persistent<v8::FunctionTemplate> V8PerIsolateData::privateTemplate(WrapperWorldType currentWorldType, void* privatePointer, v8::InvocationCallback callback, v8::Handle<v8::Value> data, v8::Handle<v8::Signature> signature, int length) |
| { |
| v8::Persistent<v8::FunctionTemplate> privateTemplate; |
| TemplateMap& templates = templateMap(currentWorldType); |
| TemplateMap::iterator result = templates.find(privatePointer); |
| if (result != templates.end()) |
| return result->value; |
| v8::Persistent<v8::FunctionTemplate> newPrivateTemplate(m_isolate, v8::FunctionTemplate::New(callback, data, signature, length)); |
| templates.add(privatePointer, newPrivateTemplate); |
| return newPrivateTemplate; |
| } |
| |
| v8::Persistent<v8::FunctionTemplate> V8PerIsolateData::rawTemplate(WrapperTypeInfo* info, WrapperWorldType currentWorldType) |
| { |
| TemplateMap& templates = rawTemplateMap(currentWorldType); |
| TemplateMap::iterator result = templates.find(info); |
| if (result != templates.end()) |
| return result->value; |
| |
| v8::HandleScope handleScope; |
| v8::Persistent<v8::FunctionTemplate> templ = createRawTemplate(m_isolate); |
| templates.add(info, templ); |
| return templ; |
| } |
| |
| v8::Local<v8::Context> V8PerIsolateData::ensureRegexContext() |
| { |
| if (m_regexContext.isEmpty()) { |
| v8::HandleScope handleScope(m_isolate); |
| m_regexContext.set(m_isolate, v8::Context::New(m_isolate)); |
| } |
| return v8::Local<v8::Context>::New(m_regexContext.get()); |
| } |
| |
| bool V8PerIsolateData::hasInstance(WrapperTypeInfo* info, v8::Handle<v8::Value> value, WrapperWorldType currentWorldType) |
| { |
| TemplateMap& templates = rawTemplateMap(currentWorldType); |
| TemplateMap::iterator result = templates.find(info); |
| if (result == templates.end()) |
| return false; |
| return result->value->HasInstance(value); |
| } |
| |
| void V8PerIsolateData::visitExternalStrings(ExternalStringVisitor* visitor) |
| { |
| v8::HandleScope handleScope; |
| class VisitorImpl : public v8::ExternalResourceVisitor { |
| public: |
| VisitorImpl(ExternalStringVisitor* visitor) : m_visitor(visitor) { } |
| virtual ~VisitorImpl() { } |
| virtual void VisitExternalString(v8::Handle<v8::String> string) |
| { |
| WebCoreStringResourceBase* resource = WebCoreStringResourceBase::toWebCoreStringResourceBase(string); |
| if (resource) |
| resource->visitStrings(m_visitor); |
| } |
| private: |
| ExternalStringVisitor* m_visitor; |
| } v8Visitor(visitor); |
| v8::V8::VisitExternalResources(&v8Visitor); |
| } |
| |
| v8::Handle<v8::Value> V8PerIsolateData::constructorOfToString(const v8::Arguments& args) |
| { |
| // The DOM constructors' toString functions grab the current toString |
| // for Functions by taking the toString function of itself and then |
| // calling it with the constructor as its receiver. This means that |
| // changes to the Function prototype chain or toString function are |
| // reflected when printing DOM constructors. The only wart is that |
| // changes to a DOM constructor's toString's toString will cause the |
| // toString of the DOM constructor itself to change. This is extremely |
| // obscure and unlikely to be a problem. |
| v8::Handle<v8::Value> value = args.Callee()->Get(v8::String::NewSymbol("toString")); |
| if (!value->IsFunction()) |
| return v8::String::Empty(args.GetIsolate()); |
| return v8::Handle<v8::Function>::Cast(value)->Call(args.This(), 0, 0); |
| } |
| |
| } // namespace WebCore |