ulib/3party/sqlpp11/include/sqlpp11/union_data.h
tqcq 99c258107b
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feat/support_orm (#2)
Co-authored-by: tqcq <99722391+tqcq@users.noreply.github.com>
Reviewed-on: #2
2024-01-06 13:56:45 +00:00

60 lines
2.2 KiB
C++

#pragma once
/*
* Copyright (c) 2013-2015, Roland Bock
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* Redistributions in binary form must reproduce the above copyright notice, this
* list of conditions and the following disclaimer in the documentation and/or
* other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
namespace sqlpp
{
template <typename Database, typename Flag, typename Lhs, typename Rhs>
struct union_data_t
{
union_data_t(Lhs lhs, Rhs rhs) : _lhs(lhs), _rhs(rhs)
{
}
union_data_t(const union_data_t&) = default;
union_data_t(union_data_t&&) = default;
union_data_t& operator=(const union_data_t&) = default;
union_data_t& operator=(union_data_t&&) = default;
~union_data_t() = default;
Lhs _lhs;
Rhs _rhs;
};
// Interpreters
template <typename Context, typename Database, typename Flag, typename Lhs, typename Rhs>
Context& serialize(const union_data_t<Database, Flag, Lhs, Rhs>& t, Context& context)
{
serialize(t._lhs, context);
context << " UNION ";
serialize(Flag{}, context);
context << " ";
serialize(t._rhs, context);
return context;
}
} // namespace sqlpp