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84 lines
2.8 KiB
C++
84 lines
2.8 KiB
C++
/*
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* Copyright (c) 2013-2014, 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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#ifndef SQLPP_VERBATIM_H
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#define SQLPP_VERBATIM_H
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#include <sqlpp11/no_value.h>
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#include <sqlpp11/type_traits.h>
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#include <sqlpp11/serialize.h>
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namespace sqlpp
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{
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template<typename ValueType> // Csaba Csoma suggests: unsafe_sql instead of verbatim
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struct verbatim_t:
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public expression_operators<verbatim_t<ValueType>, ValueType>,
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public alias_operators<verbatim_t<ValueType>>
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{
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using _traits = make_traits<ValueType, tag::is_expression>;
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struct _recursive_traits : public make_recursive_traits<>
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{
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using _tags = detail::type_set<tag::can_be_null>; // since we do not know what's going on inside the verbatim, we assume it can be null
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};
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verbatim_t(std::string verbatim): _verbatim(verbatim) {}
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verbatim_t(const verbatim_t&) = default;
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verbatim_t(verbatim_t&&) = default;
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verbatim_t& operator=(const verbatim_t&) = default;
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verbatim_t& operator=(verbatim_t&&) = default;
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~verbatim_t() = default;
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std::string _verbatim;
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};
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template<typename Context, typename ValueType>
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struct serializer_t<Context, verbatim_t<ValueType>>
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{
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using _serialize_check = consistent_t;
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using T = verbatim_t<ValueType>;
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static Context& _(const T& t, Context& context)
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{
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context << t._verbatim;
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return context;
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}
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};
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template<typename ValueType, typename StringType>
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auto verbatim(StringType s) -> verbatim_t<ValueType>
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{
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return { s };
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}
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auto verbatim(std::string s) -> verbatim_t<no_value_t>
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{
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return { s };
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}
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}
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#endif
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