////////////////////////////////////////////////////////////////////////////////
/// DISCLAIMER
///
/// Copyright 2019 ArangoDB GmbH, Cologne, Germany
///
/// 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.
///
/// Copyright holder is ArangoDB GmbH, Cologne, Germany
///
/// @author Tobias Gödderz
////////////////////////////////////////////////////////////////////////////////

#ifndef ARANGOD_AQL_AQL_VALUE_FWD_H
#define ARANGOD_AQL_AQL_VALUE_FWD_H 1

#include <functional>

namespace arangodb {
namespace aql {

struct AqlValue;

}  // namespace aql
}  // namespace arangodb

/// @brief hash function for AqlValue objects
/// Defined in AqlValue.cpp!
namespace std {

template <>
struct hash<arangodb::aql::AqlValue> {
  size_t operator()(arangodb::aql::AqlValue const& x) const noexcept;
};

template <>
struct equal_to<arangodb::aql::AqlValue> {
  bool operator()(arangodb::aql::AqlValue const& a,
                  arangodb::aql::AqlValue const& b) const noexcept;
};

}  // namespace std

#endif  // ARANGOD_AQL_AQL_VALUE_FWD_H