chromium/components/account_id/account_id.h

// Copyright 2015 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef COMPONENTS_ACCOUNT_ID_ACCOUNT_ID_H_
#define COMPONENTS_ACCOUNT_ID_ACCOUNT_ID_H_

#include <stddef.h>

#include <functional>
#include <ostream>
#include <string>

enum class AccountType { … };

// Type that contains enough information to identify user.
//
// TODO(alemate): Rename functions and fields to reflect different types of
// accounts. (see crbug.com/672253)
class AccountId { … };

// Overload << operator to allow logging of AccountIds.
std::ostream& operator<<(std::ostream& stream, const AccountId& account_id);

// Returns a reference to a singleton.
const AccountId& EmptyAccountId();

namespace std {

// Implement hashing of AccountId, so it can be used as a key in STL containers.
template <>
struct hash<AccountId> { … };

}  // namespace std

#endif  // COMPONENTS_ACCOUNT_ID_ACCOUNT_ID_H_