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/*
* Copyright (C) 2012 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:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * 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.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND 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 THE COPYRIGHT
* OWNER OR 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 "V8BindingPerContextData.h"
#include "SafeAllocation.h"
namespace WebCore {
void V8BindingPerContextData::dispose()
{
{
WrapperBoilerplateMap::iterator it = m_wrapperBoilerplates.begin();
for (; it != m_wrapperBoilerplates.end(); ++it) {
v8::Persistent<v8::Object> wrapper = it->second;
wrapper.Dispose();
}
m_wrapperBoilerplates.clear();
}
{
ConstructorMap::iterator it = m_constructorMap.begin();
for (; it != m_constructorMap.end(); ++it) {
v8::Persistent<v8::Function> wrapper = it->second;
wrapper.Dispose();
}
m_constructorMap.clear();
}
}
bool V8BindingPerContextData::init()
{
ASSERT(m_objectPrototype.get().IsEmpty());
v8::Handle<v8::String> objectString = v8::String::New("Object");
v8::Handle<v8::String> prototypeString = v8::String::New("prototype");
if (objectString.IsEmpty() || prototypeString.IsEmpty())
return false;
v8::Handle<v8::Object> object = v8::Handle<v8::Object>::Cast(m_context->Global()->Get(objectString));
if (object.IsEmpty())
return false;
v8::Handle<v8::Value> objectPrototype = object->Get(prototypeString);
if (objectPrototype.IsEmpty())
return false;
m_objectPrototype.set(objectPrototype);
return true;
}
v8::Local<v8::Object> V8BindingPerContextData::createWrapperFromCacheSlowCase(WrapperTypeInfo* type)
{
ASSERT(!m_objectPrototype.get().IsEmpty());
v8::Context::Scope scope(m_context);
v8::Local<v8::Function> function = constructorForType(type);
v8::Local<v8::Object> instance = SafeAllocation::newInstance(function);
if (!instance.IsEmpty()) {
m_wrapperBoilerplates.set(type, v8::Persistent<v8::Object>::New(instance));
return instance->Clone();
}
return v8::Local<v8::Object>();
}
v8::Local<v8::Function> V8BindingPerContextData::constructorForTypeSlowCase(WrapperTypeInfo* type)
{
ASSERT(!m_objectPrototype.get().IsEmpty());
v8::Context::Scope scope(m_context);
v8::Handle<v8::FunctionTemplate> functionTemplate = type->getTemplate();
// Getting the function might fail if we're running out of stack or memory.
v8::TryCatch tryCatch;
v8::Local<v8::Function> function = functionTemplate->GetFunction();
if (function.IsEmpty())
return v8::Local<v8::Function>();
function->SetPrototype(m_objectPrototype.get());
m_constructorMap.set(type, v8::Persistent<v8::Function>::New(function));
return function;
}
} // namespace WebCore
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