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110 lines
4.5 KiB
C++
110 lines
4.5 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,
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* this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or 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 DISCLAIMED.
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* IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
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* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
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* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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* OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "Sample.h"
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#include "MockDb.h"
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#include "is_regular.h"
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#include <sqlpp11/functions.h>
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#include <sqlpp11/select.h>
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#include <iostream>
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MockDb db = {};
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int main()
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{
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test::TabFoo f;
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test::TabBar t;
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// empty parameter lists
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{
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using T = sqlpp::parameters_of<decltype(t.alpha)>;
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static_assert(std::is_same<T, std::tuple<>>::value, "type requirement");
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}
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// single parameter
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{
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using T = sqlpp::parameters_of<decltype(parameter(t.alpha))>;
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static_assert(std::is_same<T, std::tuple<decltype(parameter(t.alpha))>>::value, "type requirement");
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}
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// single parameter
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{
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using T = sqlpp::parameters_of<decltype(parameter(t.alpha))>;
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static_assert(std::is_same<T, std::tuple<decltype(parameter(t.alpha))>>::value, "type requirement");
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}
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// single parameter in expression
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{
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using T = sqlpp::parameters_of<decltype(t.alpha == parameter(t.alpha))>;
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static_assert(std::is_same<T, std::tuple<decltype(parameter(t.alpha))>>::value, "type requirement");
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}
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// single parameter in larger expression
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{
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using T = sqlpp::parameters_of<decltype(t.beta.like("%") and t.alpha == parameter(t.alpha) or t.gamma != false)>;
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static_assert(std::is_same<T, std::tuple<decltype(parameter(t.alpha))>>::value, "type requirement");
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}
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// three parameters in expression
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{
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using T = sqlpp::parameters_of<decltype(t.beta.like(parameter(t.beta)) and t.alpha == parameter(t.alpha) or t.gamma != parameter(t.gamma))>;
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static_assert(std::tuple_size<T>::value == 3, "type requirement");
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static_assert(std::is_same<T, std::tuple<decltype(parameter(t.beta)), decltype(parameter(t.alpha)),decltype(parameter(t.gamma))>>::value, "type requirement");
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}
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// OK, fine, now create a named parameter list from an expression
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{
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using Exp = decltype(t.beta.like(parameter(t.beta)) and t.alpha == parameter(t.alpha) or t.gamma != parameter(t.gamma));
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using T = sqlpp::make_parameter_list_t<Exp>;
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T npl;
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static_assert(std::is_same<typename sqlpp::value_type_of<decltype(t.alpha)>::_parameter_t, decltype(npl.alpha)>::value, "type requirement");
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static_assert(std::is_same<typename sqlpp::value_type_of<decltype(t.beta)>::_parameter_t, decltype(npl.beta)>::value, "type requirement");
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static_assert(std::is_same<typename sqlpp::value_type_of<decltype(t.gamma)>::_parameter_t, decltype(npl.gamma)>::value, "type requirement");
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}
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// Wonderful, now take a look at the parameter list of a select
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{
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auto s = select(all_of(t)).from(t).where(t.beta.like(parameter(t.beta)) and t.alpha == parameter(t.alpha) or t.gamma != parameter(t.gamma));
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auto p = db.prepare(s);
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using S = decltype(s);
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using T = sqlpp::make_parameter_list_t<S>;
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T npl;
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static_assert(std::is_same<typename sqlpp::value_type_of<decltype(t.alpha)>::_parameter_t, decltype(npl.alpha)>::value, "type requirement");
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static_assert(std::is_same<typename sqlpp::value_type_of<decltype(t.beta)>::_parameter_t, decltype(npl.beta)>::value, "type requirement");
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static_assert(std::is_same<typename sqlpp::value_type_of<decltype(t.gamma)>::_parameter_t, decltype(npl.gamma)>::value, "type requirement");
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npl.alpha = 7;
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auto x = npl;
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x = npl;
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std::cerr << x.alpha << std::endl;
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x = decltype(npl)();
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std::cerr << x.alpha << std::endl;
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}
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return 0;
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}
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