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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:
*
* * 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 THIRD_PARTY_BLINK_RENDERER_PLATFORM_BINDINGS_SHARED_PERSISTENT_H_
#define THIRD_PARTY_BLINK_RENDERER_PLATFORM_BINDINGS_SHARED_PERSISTENT_H_
#include "base/memory/scoped_refptr.h"
#include "third_party/blink/renderer/platform/bindings/scoped_persistent.h"
#include "third_party/blink/renderer/platform/wtf/ref_counted.h"
#include "v8/include/v8.h"
namespace blink {
// A ref counted version of ScopedPersistent. This class is intended for use by
// ScriptValue and not for normal use. Consider using ScopedPersistent directly
// instead.
template <typename T>
class SharedPersistent : public RefCounted<SharedPersistent<T>> {
WTF_MAKE_NONCOPYABLE(SharedPersistent);
public:
static scoped_refptr<SharedPersistent<T>> Create(v8::Local<T> value,
v8::Isolate* isolate) {
return base::AdoptRef(new SharedPersistent<T>(value, isolate));
}
v8::Local<T> NewLocal(v8::Isolate* isolate) const {
return value_.NewLocal(isolate);
}
bool IsEmpty() { return value_.IsEmpty(); }
bool operator==(const SharedPersistent<T>& other) {
return value_ == other.value_;
}
private:
explicit SharedPersistent(v8::Local<T> value, v8::Isolate* isolate)
: value_(isolate, value) {}
ScopedPersistent<T> value_;
};
} // namespace blink
#endif // THIRD_PARTY_BLINK_RENDERER_PLATFORM_BINDINGS_SHARED_PERSISTENT_H_