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// Copyright 2004 Roman Yakovenko. |
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// Distributed under the Boost Software License, Version 1.0. (See |
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// accompanying file LICENSE_1_0.txt or copy at |
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// http://www.boost.org/LICENSE_1_0.txt) |
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#ifndef __array_1_pyplusplus_hpp__ |
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#define __array_1_pyplusplus_hpp__ |
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#include <boost/python/iterator.hpp> |
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#include <boost/python/enum.hpp> |
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#include <boost/python/object.hpp> |
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#include <boost/python/scope.hpp> |
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#include <boost/python/converter/registry.hpp> |
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#include <stdexcept> |
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#include <type_traits> |
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#include <iostream> |
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//1 - dimension |
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namespace pyplusplus{ namespace containers{ namespace static_sized{ |
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inline void |
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raise_on_out_of_range( long unsigned int size, long unsigned int index ){ |
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if( size <= index ){ |
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throw std::out_of_range("index out of range"); |
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} |
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} |
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namespace details{ |
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template<class T> |
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struct is_immutable{ |
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enum { value = |
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( std::is_same< T, std::string >::value ) |
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|| ( std::is_same< T, std::wstring >::value ) |
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|| ( std::is_fundamental< T >::value ) |
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|| ( std::is_enum< T >::value ) }; |
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}; |
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template<class T> |
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bool is_registered(){ |
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namespace bpl = boost::python; |
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bpl::handle<> class_obj( bpl::objects::registered_class_object( bpl::type_id< T >())); |
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return class_obj.get() ? true : false; |
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} |
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template< class T > |
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void register_alias( const char* name ){ |
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namespace bpl = boost::python; |
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bpl::handle<> class_obj( bpl::objects::registered_class_object( bpl::type_id< T >())); |
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boost::python::scope().attr( name ) = bpl::object( class_obj ); |
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} |
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}//details |
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template< class TItemType, long unsigned int size > |
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struct const_array_1_t{ |
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typedef BOOST_DEDUCED_TYPENAME boost::call_traits<const TItemType>::param_type param_type; |
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typedef typename std::conditional< |
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details::is_immutable<TItemType>::value |
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, TItemType |
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, param_type |
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>::type reference_type; |
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const_array_1_t( TItemType const * const data ) |
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: m_data( data ){ |
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if( !data ){ |
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throw std::runtime_error( "const_array_1_t: pointer to null has been recieved." ); |
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} |
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} |
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long unsigned int len() const { |
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return size; |
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} |
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reference_type item_ref( long unsigned int index ) const{ |
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raise_on_out_of_range( size, index ); |
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return m_data[index]; |
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} |
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private: |
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TItemType const * m_data; |
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}; |
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template< class TItemType, long unsigned int size > |
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struct array_1_t{ |
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typedef BOOST_DEDUCED_TYPENAME boost::call_traits<const TItemType>::param_type param_type; |
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typedef typename std::conditional< |
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details::is_immutable<TItemType>::value |
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, TItemType |
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, param_type |
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>::type reference_type; |
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array_1_t( TItemType * data ) |
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: m_data( data ){ |
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if( !data ){ |
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throw std::runtime_error( "array_1_t: pointer to null has been recieved." ); |
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} |
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} |
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long unsigned int len() const { |
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return size; |
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} |
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reference_type item_ref( long unsigned int index ) const{ |
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raise_on_out_of_range( size, index ); |
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return m_data[index]; |
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} |
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void |
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set_item( long unsigned int index, reference_type new_value ){ |
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raise_on_out_of_range( size, index ); |
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m_data[index] = new_value; |
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} |
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private: |
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TItemType* m_data; |
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}; |
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template< class TItemType |
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, long unsigned int size |
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, typename CallPolicies=boost::python::default_call_policies > |
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struct register_const_array_1{ |
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register_const_array_1(const char* name){ |
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namespace bpl = boost::python; |
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typedef const_array_1_t< TItemType, size > wrapper_t; |
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if( details::is_registered< wrapper_t >() ){ |
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details::register_alias< wrapper_t >( name ); |
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} |
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else{ |
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bpl::class_< wrapper_t >( name, bpl::no_init ) |
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.def( "__getitem__" |
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, &wrapper_t::item_ref |
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, ( bpl::arg("index") ) |
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, CallPolicies() ) |
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.def( "__len__", &wrapper_t::len ); |
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} |
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} |
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}; |
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template< class TItemType |
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, long unsigned int size |
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, typename CallPolicies=boost::python::default_call_policies > |
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struct register_array_1{ |
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register_array_1(const char* name){ |
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namespace bpl = boost::python; |
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typedef array_1_t< TItemType, size > wrapper_t; |
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if( details::is_registered< wrapper_t >() ){ |
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details::register_alias< wrapper_t >( name ); |
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} |
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else{ |
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bpl::class_< wrapper_t >( name, bpl::no_init ) |
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.def( "__getitem__" |
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, &wrapper_t::item_ref |
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, ( bpl::arg("index") ) |
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, CallPolicies() ) |
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.def( "__setitem__" |
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, &wrapper_t::set_item |
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, ( bpl::arg("index"), bpl::arg("value") ) |
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, CallPolicies() ) |
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.def( "__len__", &wrapper_t::len ); |
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} |
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} |
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}; |
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} /*pyplusplus*/ } /*containers*/ } /*static_sized*/ |
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#endif//__array_1_pyplusplus_hpp__ |