src/dawn/common/CoreFoundationRef.h

// Copyright 2020 The Dawn & Tint Authors
//
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#ifndef SRC_DAWN_COMMON_COREFOUNDATIONREF_H_
#define SRC_DAWN_COMMON_COREFOUNDATIONREF_H_

#include <CoreFoundation/CoreFoundation.h>

#include "dawn/common/RefBase.h"

namespace dawn {

template <typename T>
struct CoreFoundationRefTraits {
    static constexpr T kNullValue = nullptr;
    static void Reference(T value) { CFRetain(value); }
    static void Release(T value) { CFRelease(value); }
};

template <typename T>
class CFRef : public RefBase<T, CoreFoundationRefTraits<T>> {
  public:
    using RefBase<T, CoreFoundationRefTraits<T>>::RefBase;
};

template <typename T>
CFRef<T> AcquireCFRef(T pointee) {
    CFRef<T> ref;
    ref.Acquire(pointee);
    return ref;
}

}  // namespace dawn

#endif  // SRC_DAWN_COMMON_COREFOUNDATIONREF_H_