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// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef PPAPI_SHARED_IMPL_SCOPED_PP_VAR_H_
#define PPAPI_SHARED_IMPL_SCOPED_PP_VAR_H_
#include "ppapi/c/pp_var.h"
#include "ppapi/shared_impl/ppapi_shared_export.h"
namespace ppapi {
class PPAPI_SHARED_EXPORT ScopedPPVar {
public:
struct PassRef {};
ScopedPPVar();
// Takes one reference to the given resource.
explicit ScopedPPVar(const PP_Var& v);
// Assumes responsibility for one ref that the var already has.
ScopedPPVar(const PassRef&, const PP_Var& v);
// Implicit copy constructor allowed.
ScopedPPVar(const ScopedPPVar& other);
~ScopedPPVar();
ScopedPPVar& operator=(const PP_Var& r);
ScopedPPVar& operator=(const ScopedPPVar& other) {
return operator=(other.var_);
}
const PP_Var& get() const { return var_; }
// Returns the PP_Var, passing the reference to the caller. This class
// will no longer hold the var.
PP_Var Release();
private:
PP_Var var_;
};
} // namespace ppapi
#endif // PPAPI_SHARED_IMPL_SCOPED_PP_VAR_H_