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/*
* 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.
*/
#ifndef SQLPP_BOOLEAN_EXPRESSION_H
#define SQLPP_BOOLEAN_EXPRESSION_H
#include <sqlpp11/type_traits.h>
#include <sqlpp11/interpretable.h>
namespace sqlpp
{
template <typename Database>
struct boolean_expression_t : public expression_operators<boolean_expression_t<Database>, boolean>
{
using _traits = make_traits<boolean, tag::is_expression>;
using _nodes = detail::type_vector<>;
template <typename Expr>
boolean_expression_t(Expr expr)
: _expr(expr)
{
static_assert(is_expression_t<Expr>::value, "boolean_expression requires a boolean expression argument");
static_assert(is_boolean_t<Expr>::value, "boolean_expression requires a boolean expression argument");
}
boolean_expression_t(const boolean_expression_t&) = default;
boolean_expression_t(boolean_expression_t&&) = default;
boolean_expression_t& operator=(const boolean_expression_t&) = default;
boolean_expression_t& operator=(boolean_expression_t&&) = default;
~boolean_expression_t() = default;
interpretable_t<Database> _expr;
};
template <typename Database, typename T>
boolean_expression_t<Database> boolean_expression(T t)
{
using Expr = wrap_operand_t<T>;
return {Expr{t}};
}
template <typename Database, typename T>
boolean_expression_t<Database> boolean_expression(const Database&, T t)
{
return boolean_expression<Database>(t);
}
template <typename Context, typename Database>
struct serializer_t<Context, boolean_expression_t<Database>>
{
using _serialize_check = consistent_t;
using T = boolean_expression_t<Database>;
static Context& _(const T& t, Context& context)
{
return serialize(t._expr, context);
}
};
}
#endif