chromium/v8/src/base/enum-set.h

// Copyright 2019 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_BASE_ENUM_SET_H_
#define V8_BASE_ENUM_SET_H_

#include <ostream>
#include <type_traits>

#include "src/base/bits.h"
#include "src/base/logging.h"

namespace v8 {
namespace base {

// A poor man's version of STL's bitset: A bit set of enums E (without explicit
// values), fitting into an integral type T.
template <class E, class T = int>
class EnumSet { … };

template <typename E, typename T>
std::ostream& operator<<(std::ostream& os, EnumSet<E, T> set) { … }

}  // namespace base
}  // namespace v8

#endif  // V8_BASE_ENUM_SET_H_