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sqlpp11/include/sqlpp11/ppgen.h

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12 KiB
C++

/*
* Copyright (c) 2014-2017, niXman (i dot nixman dog gmail dot com)
* 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.
*/
// clang-format off
#ifndef _sqlpp__ppgen_h
#define _sqlpp__ppgen_h
#include <boost/preprocessor/config/config.hpp>
// enable the Clang support
#if defined(__clang__) && !BOOST_PP_VARIADICS
#undef BOOST_PP_VARIADICS
#define BOOST_PP_VARIADICS 1
#endif // defined(__clang__)
// boost.preprocessor
#include <boost/preprocessor/cat.hpp>
#include <boost/preprocessor/facilities/expand.hpp>
#include <boost/preprocessor/punctuation/comma_if.hpp>
#include <boost/preprocessor/comparison/less.hpp>
#include <boost/preprocessor/arithmetic/add.hpp>
#include <boost/preprocessor/seq/for_each.hpp>
#include <boost/preprocessor/seq/for_each_i.hpp>
#include <boost/preprocessor/stringize.hpp>
#include <boost/preprocessor/tuple/elem.hpp>
#include <boost/preprocessor/tuple/size.hpp>
#include <boost/preprocessor/tuple/to_seq.hpp>
// tools
#include <sqlpp11/ppgen/tools/wrap_seq.h>
#include <sqlpp11/ppgen/tools/tuple_pop_front.h>
// table props
#include <sqlpp11/ppgen/tblops/engine.h>
#include <sqlpp11/ppgen/tblops/character_set.h>
// col props
#include <sqlpp11/ppgen/colops/auto_increment.h>
#include <sqlpp11/ppgen/colops/blob.h>
#include <sqlpp11/ppgen/colops/bool.h>
#include <sqlpp11/ppgen/colops/comment.h>
#include <sqlpp11/ppgen/colops/datetime.h>
#include <sqlpp11/ppgen/colops/default.h>
#include <sqlpp11/ppgen/colops/floating_point.h>
#include <sqlpp11/ppgen/colops/foreign_key.h>
#include <sqlpp11/ppgen/colops/index.h>
#include <sqlpp11/ppgen/colops/integer.h>
#include <sqlpp11/ppgen/colops/unsigned_integer.h>
#include <sqlpp11/ppgen/colops/not_null.h>
#include <sqlpp11/ppgen/colops/null.h>
#include <sqlpp11/ppgen/colops/primary_key.h>
#include <sqlpp11/ppgen/colops/text.h>
#include <sqlpp11/ppgen/colops/timestamp.h>
#include <sqlpp11/ppgen/colops/unique_index.h>
#include <sqlpp11/ppgen/colops/varchar.h>
/***************************************************************************/
// tools
#define SQLPP_DECLARE_TABLE_GET_TABLE_NAME(table) \
BOOST_PP_TUPLE_ELEM(0, BOOST_PP_EXPAND table)
#define SQLPP_DECLARE_COLUMN_GET_COLUMN_NAME(col) \
BOOST_PP_TUPLE_ELEM(0, col)
#define SQLPP_DECLARE_TABLE_ENUM_COLUMNS(unused, table, elem) \
,table::SQLPP_DECLARE_COLUMN_GET_COLUMN_NAME(elem)
/***************************************************************************/
// columns
#define SQLPP_DECLARE_COLUMN_GEN_TRAITS_AUX(unused, size, idx, elem) \
BOOST_PP_CAT( \
SQLPP_DECLARE_COLUMN_GEN_TRAITS_ \
,BOOST_PP_CAT(SQLPP_DECLARE_COLUMN_GET_TRAITS_LAZY_, elem) \
)(elem) \
BOOST_PP_COMMA_IF(BOOST_PP_LESS(BOOST_PP_ADD(idx, 1), size))
#define SQLPP_DECLARE_COLUMN_GEN_TRAITS(props) \
BOOST_PP_SEQ_FOR_EACH_I( \
SQLPP_DECLARE_COLUMN_GEN_TRAITS_AUX \
,BOOST_PP_TUPLE_SIZE(props) \
,BOOST_PP_TUPLE_TO_SEQ(props) \
)
#define SQLPP_DECLARE_COLUMN(unused, data, elem) \
struct SQLPP_DECLARE_COLUMN_GET_COLUMN_NAME(elem) \
{ \
struct _alias_t \
{ \
static constexpr const char _literal[] = \
BOOST_PP_STRINGIZE(SQLPP_DECLARE_COLUMN_GET_COLUMN_NAME(elem)); \
using _name_t = sqlpp::make_char_sequence<sizeof(_literal), _literal>; \
\
template <typename T> \
struct _member_t \
{ \
T SQLPP_DECLARE_COLUMN_GET_COLUMN_NAME(elem); \
\
T& operator()() \
{ \
return SQLPP_DECLARE_COLUMN_GET_COLUMN_NAME(elem); \
} \
const T& operator()() const \
{ \
return SQLPP_DECLARE_COLUMN_GET_COLUMN_NAME(elem); \
} \
}; /* struct _member_t */ \
}; /* struct _alias_t */ \
\
using _traits = sqlpp::make_traits< \
SQLPP_DECLARE_COLUMN_GEN_TRAITS(SQLPP_BOOST_PP_TUPLE_POP_FRONT(elem)) \
>; \
}; /* struct SQLPP_DECLARE_COLUMN_GET_COLUMN_NAME(elem) */
/***************************************************************************/
// table props
#define SQLPP_DECLARE_TABLE_GEN_PROPS_AUX(unused1, unused2, elem) \
BOOST_PP_CAT( \
SQLPP_DECLARE_TABLE_GEN_ \
,BOOST_PP_CAT(SQLPP_DECLARE_TABLE_GET_PROC_LAZY_, elem) \
)(elem)
#define SQLPP_DECLARE_TABLE_GEN_PROPS(table) \
BOOST_PP_SEQ_FOR_EACH( \
SQLPP_DECLARE_TABLE_GEN_PROPS_AUX \
,~ \
,BOOST_PP_TUPLE_TO_SEQ(SQLPP_BOOST_PP_TUPLE_POP_FRONT(table)) \
)
/***************************************************************************/
// main
#define SQLPP_DECLARE_TABLE_IMPL(table, cols) \
namespace SQLPP_DECLARE_TABLE_GET_TABLE_NAME(table) \
{ \
namespace BOOST_PP_CAT(SQLPP_DECLARE_TABLE_GET_TABLE_NAME(table), _) \
{ \
BOOST_PP_SEQ_FOR_EACH( \
SQLPP_DECLARE_COLUMN \
,~ \
,cols \
) \
} /* namespace BOOST_PP_CAT(SQLPP_DECLARE_TABLE_GET_TABLE_NAME(table), _) */ \
\
struct SQLPP_DECLARE_TABLE_GET_TABLE_NAME(table) \
: sqlpp::table_t< \
SQLPP_DECLARE_TABLE_GET_TABLE_NAME(table) \
BOOST_PP_SEQ_FOR_EACH( \
SQLPP_DECLARE_TABLE_ENUM_COLUMNS \
,BOOST_PP_CAT(SQLPP_DECLARE_TABLE_GET_TABLE_NAME(table), _) \
,cols \
) \
> \
{ \
BOOST_PP_IF( \
BOOST_PP_LESS(BOOST_PP_TUPLE_SIZE(table), 2) \
,BOOST_PP_TUPLE_EAT() \
,SQLPP_DECLARE_TABLE_GEN_PROPS \
)(BOOST_PP_EXPAND table) \
\
struct _alias_t \
{ \
static constexpr const char _literal[] = \
BOOST_PP_STRINGIZE(SQLPP_DECLARE_TABLE_GET_TABLE_NAME(table)); \
using _name_t = sqlpp::make_char_sequence<sizeof(_literal), _literal>; \
\
template <typename T> \
struct _member_t \
{ \
T SQLPP_DECLARE_TABLE_GET_TABLE_NAME(table); \
\
T& operator()() \
{ \
return SQLPP_DECLARE_TABLE_GET_TABLE_NAME(table); \
} \
const T& operator()() const \
{ \
return SQLPP_DECLARE_TABLE_GET_TABLE_NAME(table); \
} \
\
}; /* struct _member_t */ \
}; /* struct _alias_t */ \
}; /* struct SQLPP_DECLARE_TABLE_GET_TABLE_NAME(table) */ \
}
/***************************************************************************/
#define SQLPP_DECLARE_TABLE(table, cols) \
SQLPP_DECLARE_TABLE_IMPL( \
BOOST_PP_CAT(SQLPP_WRAP_SEQUENCE_X table, 0) \
,BOOST_PP_CAT(SQLPP_WRAP_SEQUENCE_X cols, 0) \
)
/***************************************************************************/
#endif // _sqlpp__ppgen_h