src/dawn_native/EnumClassBitmasks.h

// Copyright 2020 The Dawn Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

#ifndef DAWNNATIVE_ENUMCLASSBITMASK_H_
#define DAWNNATIVE_ENUMCLASSBITMASK_H_

#include "dawn/EnumClassBitmasks.h"

namespace dawn_native {

    // EnumClassBitmmasks is a WebGPU helper in the wgpu:: namespace.
    // Re-export it in the dawn_native namespace.

    // Specify this for usage with EnumMaskIterator
    template <typename T>
    struct EnumBitmaskSize {
        static constexpr unsigned value = 0;
    };

    using wgpu::operator|;
    using wgpu::operator&;
    using wgpu::operator^;
    using wgpu::operator~;
    using wgpu::operator&=;
    using wgpu::operator|=;
    using wgpu::operator^=;

    using wgpu::HasZeroOrOneBits;

    template <typename T>
    constexpr bool HasOneBit(T value) {
        return HasZeroOrOneBits(value) && value != T(0);
    }

}  // namespace dawn_native

#endif  // DAWNNATIVE_ENUMCLASSBITMASK_H_