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/*
* 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 "V8PerIsolateData.h"
#include "ScriptGCEvent.h"
#include "V8Binding.h"
namespace WebCore {
V8PerIsolateData::V8PerIsolateData(v8::Isolate* isolate)
: m_stringCache(adoptPtr(new StringCache()))
, m_integerCache(adoptPtr(new IntegerCache()))
, m_domDataStore(0)
, m_hiddenPropertyName(adoptPtr(new V8HiddenPropertyName()))
, m_constructorMode(ConstructorMode::CreateNewObject)
, m_recursionLevel(0)
, m_nextDependentRetainedId(0)
#ifndef NDEBUG
, m_internalScriptRecursionLevel(0)
#endif
, m_gcEventData(adoptPtr(new GCEventData()))
, m_shouldCollectGarbageSoon(false)
{
}
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);
}
void V8PerIsolateData::dispose(v8::Isolate* isolate)
{
void* data = isolate->GetData();
delete static_cast<V8PerIsolateData*>(data);
isolate->SetData(0);
}
void V8PerIsolateData::reportMemoryUsage(MemoryObjectInfo* memoryObjectInfo) const
{
MemoryClassInfo info(memoryObjectInfo, this, WebCoreMemoryTypes::Binding);
info.addHashMap(m_rawTemplates);
info.addHashMap(m_templates);
info.addInstrumentedMember(m_stringCache);
info.addVector(m_domDataList);
for (size_t i = 0; i < m_domDataList.size(); i++)
info.addInstrumentedMember(m_domDataList[i]);
}
#if ENABLE(INSPECTOR)
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)
{
WebCoreStringResource* resource = static_cast<WebCoreStringResource*>(string->GetExternalStringResource());
if (resource)
resource->visitStrings(m_visitor);
}
private:
ExternalStringVisitor* m_visitor;
} v8Visitor(visitor);
v8::V8::VisitExternalResources(&v8Visitor);
}
#endif
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::New("");
return v8::Handle<v8::Function>::Cast(value)->Call(args.This(), 0, 0);
}
} // namespace WebCore
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