src/dawn/utils/ScopedAutoreleasePool.mm

// Copyright 2021 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.

#include "dawn/utils/ScopedAutoreleasePool.h"

#import <Foundation/Foundation.h>

namespace utils {

    ScopedAutoreleasePool::ScopedAutoreleasePool() : mPool([[NSAutoreleasePool alloc] init]) {
    }

    ScopedAutoreleasePool::~ScopedAutoreleasePool() {
        if (mPool != nullptr) {
            [static_cast<NSAutoreleasePool*>(mPool) release];
            mPool = nullptr;
        }
    }

    ScopedAutoreleasePool::ScopedAutoreleasePool(ScopedAutoreleasePool&& rhs) {
        mPool = rhs.mPool;
        rhs.mPool = nullptr;
    }

    ScopedAutoreleasePool& ScopedAutoreleasePool::operator=(ScopedAutoreleasePool&& rhs) {
        if (&rhs != this) {
            mPool = rhs.mPool;
            rhs.mPool = nullptr;
        }
        return *this;
    }

}  // namespace utils