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/*
* This file is part of the TrinityCore Project. See AUTHORS file for Copyright information
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along
* with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef TRINITYCORE_QUERY_RESULT_STRUCTURED_H
#define TRINITYCORE_QUERY_RESULT_STRUCTURED_H
#include <boost/preprocessor/cat.hpp>
#include <boost/preprocessor/comma_if.hpp>
#include <boost/preprocessor/seq/enum.hpp>
#include <boost/preprocessor/seq/for_each.hpp>
#include <boost/preprocessor/seq/for_each_i.hpp>
#include <boost/preprocessor/stringize.hpp>
#define DEFINE_FIELD_ACCESSOR_CACHE_FIELD_INDEX_INIT(r, data, i, field) BOOST_PP_COMMA_IF(i) field(result.GetFieldMetadata(BOOST_PP_STRINGIZE(field)).Index)
#define DEFINE_FIELD_ACCESSOR_CACHE_FIELD(r, data, field) Field const& field() const\
{\
return Result.Fetch()[indexes.field];\
}
#define DEFINE_FIELD_ACCESSOR_CACHE(struct_name, result_type, fields_list) \
struct struct_name \
{ \
struct Indexes\
{\
Indexes(result_type const& result) :\
BOOST_PP_SEQ_FOR_EACH_I(DEFINE_FIELD_ACCESSOR_CACHE_FIELD_INDEX_INIT, ~, fields_list) { }\
std::size_t BOOST_PP_SEQ_ENUM(fields_list);\
};\
BOOST_PP_SEQ_FOR_EACH(DEFINE_FIELD_ACCESSOR_CACHE_FIELD, ~, fields_list) \
result_type const& Result; \
static Indexes const& indexes_impl(result_type const& result) { static Indexes const instance(result); return instance; }\
Indexes const& indexes = indexes_impl(Result);\
}
#define DEFINE_FIELD_ACCESSOR_CACHE_ANONYMOUS(result_type, fields_list) DEFINE_FIELD_ACCESSOR_CACHE(BOOST_PP_CAT(FieldAccessors, __LINE__), result_type, fields_list)
#endif // TRINITYCORE_QUERY_RESULT_STRUCTURED_H
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