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57 lines
1.9 KiB
C++
57 lines
1.9 KiB
C++
#pragma once
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/*
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* Copyright (c) 2013-2017, Roland Bock
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without modification,
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* are permitted provided that the following conditions are met:
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*
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* Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* Redistributions in binary form must reproduce the above copyright notice, this
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* list of conditions and the following disclaimer in the documentation and/or
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* other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
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* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
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* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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namespace sqlpp
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{
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template <typename Clause>
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struct hidden_t : Clause
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{
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hidden_t(Clause clause) : Clause(clause)
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{
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}
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hidden_t(const hidden_t&) = default;
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hidden_t(hidden_t&&) = default;
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hidden_t& operator=(const hidden_t&) = default;
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hidden_t& operator=(hidden_t&&) = default;
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~hidden_t() = default;
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};
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template <typename Context, typename Clause>
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Context& serialize(const hidden_t<Clause>&, Context& context)
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{
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return context;
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}
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template <typename Clause>
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auto hidden(Clause part) -> hidden_t<Clause>
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{
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return {part};
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}
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} // namespace sqlpp
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