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// -*- mode: C++; c-indent-level: 4; c-basic-offset: 4; tab-width: 8 -*-
//
// macros.h: Rcpp R/C++ interface class library -- helper macros for Rcpp modules
//
// Copyright (C) 2012-2013 Dirk Eddelbuettel and Romain Francois
//
// This file is part of Rcpp.
//
// Rcpp is free software: you can redistribute it and/or modify it
// under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 2 of the License, or
// (at your option) any later version.
//
// Rcpp is distributed in the hope that it will be useful, but
// WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Rcpp. If not, see <http://www.gnu.org/licenses/>.
#ifndef RCPP_MODULE_MACROS_H
#define RCPP_MODULE_MACROS_H
/** This macros should be used by packages using modules when a type is used
* as a parameter of a function or method exposed by modules. This defines
* the necessary trait that makes the class as<>'able
*/
#define RCPP_EXPOSED_AS(CLASS) \
namespace Rcpp{ namespace traits{ \
template<> struct r_type_traits< CLASS* >{ \
typedef r_type_module_object_pointer_tag r_category ; \
} ; \
template<> struct r_type_traits< const CLASS* >{ \
typedef r_type_module_object_const_pointer_tag r_category ; \
} ; \
template<> struct r_type_traits< CLASS >{ \
typedef r_type_module_object_tag r_category ; \
} ; \
template<> struct r_type_traits< CLASS& >{ \
typedef r_type_module_object_reference_tag r_category ; \
} ; \
template<> struct r_type_traits< const CLASS& >{ \
typedef r_type_module_object_const_reference_tag r_category ; \
} ; \
template<> struct input_parameter< CLASS* >{ \
typedef Rcpp::InputParameter<CLASS*> type ; \
} ; \
template<> struct input_parameter< const CLASS* >{ \
typedef Rcpp::InputParameter<const CLASS*> type ; \
} ; \
template<> struct input_parameter< CLASS >{ \
typedef Rcpp::InputParameter<CLASS> type ; \
} ; \
template<> struct input_parameter< CLASS& >{ \
typedef Rcpp::InputParameter<CLASS&> type ; \
} ; \
template<> struct input_parameter< const CLASS& >{ \
typedef Rcpp::InputParameter<const CLASS&> type ; \
} ; \
}}
#define RCPP_EXPOSED_WRAP(CLASS) namespace Rcpp{ namespace traits{ template<> struct wrap_type_traits< CLASS >{typedef wrap_type_module_object_tag wrap_category ; } ; }}
#define RCPP_EXPOSED_CLASS_NODECL(CLASS) \
RCPP_EXPOSED_AS(CLASS) \
RCPP_EXPOSED_WRAP(CLASS)
#define RCPP_EXPOSED_CLASS(CLASS) \
class CLASS; \
RCPP_EXPOSED_CLASS_NODECL(CLASS)
/**
* handling enums: TODO use is_enum from C++11 or boost to have those automatic
*/
#define RCPP_EXPOSED_ENUM_AS(CLASS) namespace Rcpp{ namespace traits{ template<> struct r_type_traits< CLASS >{ typedef r_type_enum_tag r_category ; } ; }}
#define RCPP_EXPOSED_ENUM_WRAP(CLASS) namespace Rcpp{ namespace traits{ template<> struct wrap_type_traits< CLASS >{typedef wrap_type_enum_tag wrap_category ; } ; }}
#define RCPP_EXPOSED_ENUM_NODECL(CLASS) \
RCPP_EXPOSED_ENUM_AS(CLASS) \
RCPP_EXPOSED_ENUM_WRAP(CLASS)
#define RCPP_EXPOSED_ENUM(CLASS) \
class CLASS; \
RCPP_EXPOSED_ENUM_NODECL(CLASS)
#endif
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