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/*
* Copyright (C) 2013 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.
*/
#ifndef ScriptPromise_h
#define ScriptPromise_h
#include "bindings/v8/ScopedPersistent.h"
#include "bindings/v8/ScriptValue.h"
#include "bindings/v8/V8ScriptRunner.h"
#include <v8.h>
namespace WebCore {
class ExecutionContext;
// ScriptPromise is the class for representing Promise values in C++ world.
// ScriptPromise holds a Promise.
// So holding a ScriptPromise as a member variable in DOM object causes
// memory leaks since it has a reference from C++ to V8.
//
class ScriptPromise {
public:
// Constructs an empty promise.
ScriptPromise()
: m_promise()
{
}
explicit ScriptPromise(const ScriptValue& promise)
: m_promise(promise)
{
ASSERT(!m_promise.hasNoValue());
}
ScriptPromise(v8::Handle<v8::Value> promise, v8::Isolate* isolate)
: m_promise(promise, isolate)
{
ASSERT(!m_promise.hasNoValue());
}
bool isObject() const
{
return m_promise.isObject();
}
bool isNull() const
{
return m_promise.isNull();
}
bool isUndefinedOrNull() const
{
return m_promise.isUndefined() || m_promise.isNull();
}
v8::Handle<v8::Value> v8Value() const
{
return m_promise.v8Value();
}
v8::Isolate* isolate() const
{
return m_promise.isolate();
}
bool hasNoValue() const
{
return m_promise.hasNoValue();
}
void clear()
{
m_promise.clear();
}
static ScriptPromise createPending();
static ScriptPromise createPending(ExecutionContext*);
private:
ScriptValue m_promise;
};
} // namespace WebCore
#endif // ScriptPromise_h
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