Moved files under Source/bindings/v8 to Source/bindings/core/v8.

Source/bindings/v8/V8PerIsolateData.cpp

-/*
- * 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/PageScriptDebugServer.h"
-#include "bindings/v8/ScriptGCEvent.h"
-#include "bindings/v8/ScriptProfiler.h"
-#include "bindings/v8/V8Binding.h"
-#include "bindings/v8/V8HiddenValue.h"
-#include "bindings/v8/V8ObjectConstructor.h"
-#include "bindings/v8/V8RecursionScope.h"
-#include "bindings/v8/V8ScriptRunner.h"
-#include "core/frame/UseCounter.h"
-#include "public/platform/Platform.h"
-#include "wtf/MainThread.h"
-
-namespace WebCore {
-
-static V8PerIsolateData* mainThreadPerIsolateData = 0;
-
-#ifndef NDEBUG
-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(currentExecutionContext(isolate), UseCounter::UseAsm);
-        break;
-    default:
-        ASSERT_NOT_REACHED();
-    }
-}
-
-V8PerIsolateData::V8PerIsolateData(v8::Isolate* isolate)
-    : m_isolate(isolate)
-    , m_isolateHolder(adoptPtr(new gin::IsolateHolder(m_isolate, v8ArrayBufferAllocator())))
-    , m_stringCache(adoptPtr(new StringCache(m_isolate)))
-    , m_hiddenValue(adoptPtr(new V8HiddenValue()))
-    , m_constructorMode(ConstructorMode::CreateNewObject)
-    , m_recursionLevel(0)
-#ifndef NDEBUG
-    , m_internalScriptRecursionLevel(0)
-#endif
-    , m_gcEventData(adoptPtr(new GCEventData()))
-    , m_performingMicrotaskCheckpoint(false)
-{
-#ifndef NDEBUG
-    // 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();
-}
-
-void V8PerIsolateData::ensureInitialized(v8::Isolate* isolate)
-{
-    ASSERT(isolate);
-    if (!isolate->GetData(gin::kEmbedderBlink)) {
-        V8PerIsolateData* data = new V8PerIsolateData(isolate);
-        isolate->SetData(gin::kEmbedderBlink, data);
-    }
-}
-
-v8::Persistent<v8::Value>& V8PerIsolateData::ensureLiveRoot()
-{
-    if (m_liveRoot.isEmpty())
-        m_liveRoot.set(m_isolate, v8::Null(m_isolate));
-    return m_liveRoot.getUnsafe();
-}
-
-void V8PerIsolateData::dispose(v8::Isolate* isolate)
-{
-#ifndef NDEBUG
-    if (blink::Platform::current()->currentThread())
-        isolate->RemoveCallCompletedCallback(&assertV8RecursionScope);
-#endif
-    void* data = isolate->GetData(gin::kEmbedderBlink);
-    delete static_cast<V8PerIsolateData*>(data);
-    isolate->SetData(gin::kEmbedderBlink, 0);
-}
-
-V8PerIsolateData::DOMTemplateMap& V8PerIsolateData::currentDOMTemplateMap()
-{
-    if (DOMWrapperWorld::current(m_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(m_isolate);
-
-    v8::Local<v8::FunctionTemplate> templ = v8::FunctionTemplate::New(m_isolate, callback, data, signature, length);
-    domTemplateMap.add(domTemplateKey, v8::Eternal<v8::FunctionTemplate>(m_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(m_isolate);
-    return v8::Local<v8::FunctionTemplate>();
-}
-
-void V8PerIsolateData::setDOMTemplate(void* domTemplateKey, v8::Handle<v8::FunctionTemplate> templ)
-{
-    currentDOMTemplateMap().add(domTemplateKey, v8::Eternal<v8::FunctionTemplate>(m_isolate, v8::Local<v8::FunctionTemplate>(templ)));
-}
-
-v8::Local<v8::Context> V8PerIsolateData::ensureScriptRegexpContext()
-{
-    if (!m_scriptRegexpScriptState) {
-        v8::Local<v8::Context> context(v8::Context::New(m_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(m_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(m_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(m_isolate, v8::FunctionTemplate::New(m_isolate, constructorOfToString));
-    return m_toStringTemplate.newLocal(m_isolate);
-}
-
-} // namespace WebCore