// Copyright 2020 The Dawn & Tint Authors
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
// 1. Redistributions of source code must retain the above copyright notice, this
//    list of conditions and the following disclaimer.
//
// 2. 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.
//
// 3. Neither the name of the copyright holder 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 HOLDER OR CONTRIBUTORS BE LIABLE
// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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// CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

#ifndef SRC_DAWN_UTILS_OBJCUTILS_H_
#define SRC_DAWN_UTILS_OBJCUTILS_H_

#include "dawn/common/NonMovable.h"

// Contains helper function to manipulate ObjC objects. This helps having C++ files do a little bit
// of ObjectiveC calls, when they cannot be converted to ObjectiveC++ because they are used on
// multiple platforms.

namespace dawn::utils {

// The returned CALayer is autoreleased.
class ScopedCALayer : public NonMovable {
  public:
    explicit ScopedCALayer(void* layer);
    ~ScopedCALayer();

    void* const layer;
};
ScopedCALayer CreatePlaceholderCALayer();

}  // namespace dawn::utils

#endif  // SRC_DAWN_UTILS_OBJCUTILS_H_