| /* |
| * 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/core/v8/V8PerIsolateData.h" |
| |
| #include "bindings/core/v8/DOMDataStore.h" |
| #include "bindings/core/v8/PageScriptDebugServer.h" |
| #include "bindings/core/v8/ScriptGCEvent.h" |
| #include "bindings/core/v8/ScriptProfiler.h" |
| #include "bindings/core/v8/V8Binding.h" |
| #include "bindings/core/v8/V8HiddenValue.h" |
| #include "bindings/core/v8/V8ObjectConstructor.h" |
| #include "bindings/core/v8/V8RecursionScope.h" |
| #include "bindings/core/v8/V8ScriptRunner.h" |
| #include "core/frame/UseCounter.h" |
| #include "public/platform/Platform.h" |
| #include "wtf/MainThread.h" |
| |
| namespace blink { |
| |
| static V8PerIsolateData* mainThreadPerIsolateData = 0; |
| |
| #if ENABLE(ASSERT) |
| static void assertV8RecursionScope() |
| { |
| ASSERT(V8RecursionScope::properlyUsed(v8::Isolate::GetCurrent())); |
| } |
| #endif |
| |
| static void useCounterCallback(v8::Isolate* isolate, v8::Isolate::UseCounterFeature feature) |
| { |
| switch (feature) { |
| case v8::Isolate::kUseAsm: |
| UseCounter::count(callingExecutionContext(isolate), UseCounter::UseAsm); |
| break; |
| case v8::Isolate::kBreakIterator: |
| UseCounter::count(callingExecutionContext(isolate), UseCounter::BreakIterator); |
| break; |
| default: |
| ASSERT_NOT_REACHED(); |
| break; |
| } |
| } |
| |
| V8PerIsolateData::V8PerIsolateData() |
| : m_destructionPending(false) |
| , m_isolateHolder(adoptPtr(new gin::IsolateHolder())) |
| , m_stringCache(adoptPtr(new StringCache(isolate()))) |
| , m_hiddenValue(adoptPtr(new V8HiddenValue())) |
| , m_constructorMode(ConstructorMode::CreateNewObject) |
| , m_recursionLevel(0) |
| , m_isHandlingRecursionLevelError(false) |
| , m_isReportingException(false) |
| #if ENABLE(ASSERT) |
| , m_internalScriptRecursionLevel(0) |
| #endif |
| , m_gcEventData(adoptPtr(new GCEventData())) |
| , m_performingMicrotaskCheckpoint(false) |
| { |
| // FIXME: Remove once all v8::Isolate::GetCurrent() calls are gone. |
| isolate()->Enter(); |
| #if ENABLE(ASSERT) |
| // currentThread will always be non-null in production, but can be null in Chromium unit tests. |
| if (blink::Platform::current()->currentThread()) |
| isolate()->AddCallCompletedCallback(&assertV8RecursionScope); |
| #endif |
| if (isMainThread()) { |
| mainThreadPerIsolateData = this; |
| PageScriptDebugServer::setMainThreadIsolate(isolate()); |
| } |
| isolate()->SetUseCounterCallback(&useCounterCallback); |
| } |
| |
| V8PerIsolateData::~V8PerIsolateData() |
| { |
| if (m_scriptRegexpScriptState) |
| m_scriptRegexpScriptState->disposePerContextData(); |
| if (isMainThread()) |
| mainThreadPerIsolateData = 0; |
| } |
| |
| v8::Isolate* V8PerIsolateData::mainThreadIsolate() |
| { |
| ASSERT(isMainThread()); |
| ASSERT(mainThreadPerIsolateData); |
| return mainThreadPerIsolateData->isolate(); |
| } |
| |
| v8::Isolate* V8PerIsolateData::initialize() |
| { |
| V8PerIsolateData* data = new V8PerIsolateData(); |
| v8::Isolate* isolate = data->isolate(); |
| isolate->SetData(gin::kEmbedderBlink, data); |
| return isolate; |
| } |
| |
| v8::Persistent<v8::Value>& V8PerIsolateData::ensureLiveRoot() |
| { |
| if (m_liveRoot.isEmpty()) |
| m_liveRoot.set(isolate(), v8::Null(isolate())); |
| return m_liveRoot.getUnsafe(); |
| } |
| |
| void V8PerIsolateData::willBeDestroyed(v8::Isolate* isolate) |
| { |
| V8PerIsolateData* data = from(isolate); |
| |
| ASSERT(!data->m_destructionPending); |
| data->m_destructionPending = true; |
| |
| // Clear any data that may have handles into the heap, |
| // prior to calling ThreadState::detach(). |
| data->m_idbPendingTransactionMonitor.clear(); |
| } |
| |
| void V8PerIsolateData::destroy(v8::Isolate* isolate) |
| { |
| #if ENABLE(ASSERT) |
| if (blink::Platform::current()->currentThread()) |
| isolate->RemoveCallCompletedCallback(&assertV8RecursionScope); |
| #endif |
| V8PerIsolateData* data = from(isolate); |
| // FIXME: Remove once all v8::Isolate::GetCurrent() calls are gone. |
| isolate->Exit(); |
| delete data; |
| } |
| |
| V8PerIsolateData::DOMTemplateMap& V8PerIsolateData::currentDOMTemplateMap() |
| { |
| if (DOMWrapperWorld::current(isolate()).isMainWorld()) |
| return m_domTemplateMapForMainWorld; |
| return m_domTemplateMapForNonMainWorld; |
| } |
| |
| v8::Handle<v8::FunctionTemplate> V8PerIsolateData::domTemplate(void* domTemplateKey, v8::FunctionCallback callback, v8::Handle<v8::Value> data, v8::Handle<v8::Signature> signature, int length) |
| { |
| DOMTemplateMap& domTemplateMap = currentDOMTemplateMap(); |
| DOMTemplateMap::iterator result = domTemplateMap.find(domTemplateKey); |
| if (result != domTemplateMap.end()) |
| return result->value.Get(isolate()); |
| |
| v8::Local<v8::FunctionTemplate> templ = v8::FunctionTemplate::New(isolate(), callback, data, signature, length); |
| domTemplateMap.add(domTemplateKey, v8::Eternal<v8::FunctionTemplate>(isolate(), templ)); |
| return templ; |
| } |
| |
| v8::Handle<v8::FunctionTemplate> V8PerIsolateData::existingDOMTemplate(void* domTemplateKey) |
| { |
| DOMTemplateMap& domTemplateMap = currentDOMTemplateMap(); |
| DOMTemplateMap::iterator result = domTemplateMap.find(domTemplateKey); |
| if (result != domTemplateMap.end()) |
| return result->value.Get(isolate()); |
| return v8::Local<v8::FunctionTemplate>(); |
| } |
| |
| void V8PerIsolateData::setDOMTemplate(void* domTemplateKey, v8::Handle<v8::FunctionTemplate> templ) |
| { |
| currentDOMTemplateMap().add(domTemplateKey, v8::Eternal<v8::FunctionTemplate>(isolate(), v8::Local<v8::FunctionTemplate>(templ))); |
| } |
| |
| v8::Local<v8::Context> V8PerIsolateData::ensureScriptRegexpContext() |
| { |
| if (!m_scriptRegexpScriptState) { |
| v8::Local<v8::Context> context(v8::Context::New(isolate())); |
| m_scriptRegexpScriptState = ScriptState::create(context, DOMWrapperWorld::create()); |
| } |
| return m_scriptRegexpScriptState->context(); |
| } |
| |
| bool V8PerIsolateData::hasInstance(const WrapperTypeInfo* info, v8::Handle<v8::Value> value) |
| { |
| return hasInstance(info, value, m_domTemplateMapForMainWorld) |
| || hasInstance(info, value, m_domTemplateMapForNonMainWorld); |
| } |
| |
| bool V8PerIsolateData::hasInstance(const WrapperTypeInfo* info, v8::Handle<v8::Value> value, DOMTemplateMap& domTemplateMap) |
| { |
| DOMTemplateMap::iterator result = domTemplateMap.find(info); |
| if (result == domTemplateMap.end()) |
| return false; |
| v8::Handle<v8::FunctionTemplate> templ = result->value.Get(isolate()); |
| return templ->HasInstance(value); |
| } |
| |
| v8::Handle<v8::Object> V8PerIsolateData::findInstanceInPrototypeChain(const WrapperTypeInfo* info, v8::Handle<v8::Value> value) |
| { |
| v8::Handle<v8::Object> wrapper = findInstanceInPrototypeChain(info, value, m_domTemplateMapForMainWorld); |
| if (!wrapper.IsEmpty()) |
| return wrapper; |
| return findInstanceInPrototypeChain(info, value, m_domTemplateMapForNonMainWorld); |
| } |
| |
| v8::Handle<v8::Object> V8PerIsolateData::findInstanceInPrototypeChain(const WrapperTypeInfo* info, v8::Handle<v8::Value> value, DOMTemplateMap& domTemplateMap) |
| { |
| if (value.IsEmpty() || !value->IsObject()) |
| return v8::Handle<v8::Object>(); |
| DOMTemplateMap::iterator result = domTemplateMap.find(info); |
| if (result == domTemplateMap.end()) |
| return v8::Handle<v8::Object>(); |
| v8::Handle<v8::FunctionTemplate> templ = result->value.Get(isolate()); |
| return v8::Handle<v8::Object>::Cast(value)->FindInstanceInPrototypeChain(templ); |
| } |
| |
| static void constructorOfToString(const v8::FunctionCallbackInfo<v8::Value>& info) |
| { |
| // 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 = info.Callee()->Get(v8AtomicString(info.GetIsolate(), "toString")); |
| if (!value->IsFunction()) { |
| v8SetReturnValue(info, v8::String::Empty(info.GetIsolate())); |
| return; |
| } |
| v8SetReturnValue(info, V8ScriptRunner::callInternalFunction(v8::Handle<v8::Function>::Cast(value), info.This(), 0, 0, info.GetIsolate())); |
| } |
| |
| v8::Handle<v8::FunctionTemplate> V8PerIsolateData::toStringTemplate() |
| { |
| if (m_toStringTemplate.isEmpty()) |
| m_toStringTemplate.set(isolate(), v8::FunctionTemplate::New(isolate(), constructorOfToString)); |
| return m_toStringTemplate.newLocal(isolate()); |
| } |
| |
| IDBPendingTransactionMonitor* V8PerIsolateData::ensureIDBPendingTransactionMonitor() |
| { |
| if (!m_idbPendingTransactionMonitor) |
| m_idbPendingTransactionMonitor = adoptPtr(new IDBPendingTransactionMonitor()); |
| return m_idbPendingTransactionMonitor.get(); |
| } |
| |
| } // namespace blink |