// Copyright 2020 the V8 project 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 V8_TEST_COMMON_FLAG_UTILS_H

#define V8_TEST_COMMON_FLAG_UTILS_H

#include "src/base/macros.h"

namespace v8 {

namespace internal {

template <typename T>

class V8_NODISCARD FlagScope {

public:

FlagScope(T* flag, T new_value) : flag_(flag), previous_value_(*flag) {

*flag = new_value;

}

~FlagScope() { *flag_ = previous_value_; }

private:

T* flag_;

T previous_value_;

};

} // namespace internal

} // namespace v8

#define FLAG_VALUE_SCOPE(flag, value) \

v8::internal::FlagScope<bool> UNIQUE_IDENTIFIER(__scope_##flag)( \

&v8::internal::FLAG_##flag, value)

#define FLAG_SCOPE(flag) FLAG_VALUE_SCOPE(flag, true)

#endif // V8_TEST_COMMON_FLAG_UTILS_H