150 lines
6.3 KiB
Plaintext
150 lines
6.3 KiB
Plaintext
// Copyright (C) 2005 Peder Holt
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// Copyright (C) 2005 Arkadiy Vertleyb
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// Distributed under the Boost Software License, Version 1.0. (See accompanying
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// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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#ifndef BOOST_TYPEOF_TEMPLATE_TEMPLATE_PARAM_HPP_INCLUDED
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#define BOOST_TYPEOF_TEMPLATE_TEMPLATE_PARAM_HPP_INCLUDED
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#include <boost/preprocessor/logical/or.hpp>
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#include <boost/preprocessor/seq/fold_left.hpp>
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#include <boost/preprocessor/seq/enum.hpp>
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#define BOOST_TYPEOF_MAKE_OBJ_template(x) BOOST_TYPEOF_TEMPLATE_PARAM(x)
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#define BOOST_TYPEOF_TEMPLATE(X) template(X) BOOST_TYPEOF_EAT
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#define BOOST_TYPEOF_template(X) (template(X))
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#define BOOST_TYPEOF_TEMPLATE_PARAM(Params)\
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(TEMPLATE_PARAM)\
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(Params)
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#define BOOST_TYPEOF_TEMPLATE_PARAM_GETPARAMS(This)\
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BOOST_TYPEOF_TOSEQ(BOOST_PP_SEQ_ELEM(1, This))
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//Encode / decode this
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#define BOOST_TYPEOF_TEMPLATE_PARAM_ENCODE(This, n)\
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typedef typename boost::type_of::encode_template<BOOST_PP_CAT(V, n),\
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BOOST_PP_CAT(P, n)<BOOST_TYPEOF_SEQ_ENUM(BOOST_TYPEOF_MAKE_OBJS(BOOST_TYPEOF_TEMPLATE_PARAM_GETPARAMS(This)),BOOST_TYPEOF_PLACEHOLDER) >\
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>::type BOOST_PP_CAT(V, BOOST_PP_INC(n));
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#define BOOST_TYPEOF_TEMPLATE_PARAM_DECODE(This, n)\
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typedef boost::type_of::decode_template< BOOST_PP_CAT(iter, n) > BOOST_PP_CAT(d, n);\
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typedef typename BOOST_PP_CAT(d, n)::type BOOST_PP_CAT(P, n);\
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typedef typename BOOST_PP_CAT(d, n)::iter BOOST_PP_CAT(iter,BOOST_PP_INC(n));
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// template<class, unsigned int, ...> class
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#define BOOST_TYPEOF_TEMPLATE_PARAM_EXPANDTYPE(This) \
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template <BOOST_PP_SEQ_ENUM(BOOST_TYPEOF_TEMPLATE_PARAM_GETPARAMS(This)) > class
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#define BOOST_TYPEOF_TEMPLATE_PARAM_PLACEHOLDER(Param)\
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Nested_Template_Template_Arguments_Not_Supported
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//'template<class,int> class' is reduced to 'class'
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#define BOOST_TYPEOF_TEMPLATE_PARAM_DECLARATION_TYPE(Param) class
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// T3<int, (unsigned int)0, ...>
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#define BOOST_TYPEOF_TEMPLATE_PARAM_PLACEHOLDER_TYPES(Param, n)\
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BOOST_PP_CAT(T,n)<BOOST_TYPEOF_SEQ_ENUM_1(BOOST_TYPEOF_MAKE_OBJS(BOOST_TYPEOF_TEMPLATE_PARAM_GETPARAMS(Param)),BOOST_TYPEOF_PLACEHOLDER) >
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#define BOOST_TYPEOF_TEMPLATE_PARAM_ISTEMPLATE 1
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////////////////////////////
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// move to encode_decode?
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BOOST_TYPEOF_BEGIN_ENCODE_NS
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template<class V, class Type_Not_Registered_With_Typeof_System> struct encode_template_impl;
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template<class T, class Iter> struct decode_template_impl;
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BOOST_TYPEOF_END_ENCODE_NS
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namespace boost { namespace type_of {
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template<class V, class T> struct encode_template
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: BOOST_TYPEOF_ENCODE_NS_QUALIFIER::encode_template_impl<V, T>
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{};
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template<class Iter> struct decode_template
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: BOOST_TYPEOF_ENCODE_NS_QUALIFIER::decode_template_impl<typename Iter::type, typename Iter::next>
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{};
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}}
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////////////////////////////
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// move to template_encoding.hpp?
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//Template template registration
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#define BOOST_TYPEOF_REGISTER_TYPE_FOR_TEMPLATE_TEMPLATE(Name,Params,ID)\
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template<class V\
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BOOST_TYPEOF_SEQ_ENUM_TRAILING(Params,BOOST_TYPEOF_REGISTER_TEMPLATE_PARAM_PAIR)\
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>\
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struct encode_template_impl<V,Name<\
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BOOST_PP_ENUM_PARAMS(\
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BOOST_PP_SEQ_SIZE(Params),\
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P)> >\
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: boost::type_of::push_back<V, boost::mpl::size_t<ID> >\
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{\
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};\
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template<class Iter> struct decode_template_impl<boost::mpl::size_t<ID>, Iter>\
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{\
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BOOST_PP_REPEAT(BOOST_PP_SEQ_SIZE(Params),BOOST_TYPEOF_TYPEDEF_INT_PN,_)\
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typedef Name<BOOST_TYPEOF_SEQ_ENUM(Params,BOOST_TYPEOF_PLACEHOLDER) > type;\
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typedef Iter iter;\
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};
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#define BOOST_TYPEOF_TYPEDEF_INT_PN(z,n,Params) typedef int BOOST_PP_CAT(P,n);
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#ifdef __BORLANDC__
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#define BOOST_TYPEOF_DECODE_NESTED_TEMPLATE_HELPER_NAME BOOST_PP_CAT(\
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BOOST_PP_CAT(\
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BOOST_PP_CAT(\
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decode_nested_template_helper,\
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BOOST_TYPEOF_REGISTRATION_GROUP\
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),0x10000\
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),__LINE__\
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)
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#define BOOST_TYPEOF_REGISTER_DECODE_NESTED_TEMPLATE_HELPER_IMPL(Name,Params,ID)\
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struct BOOST_TYPEOF_DECODE_NESTED_TEMPLATE_HELPER_NAME {\
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template<BOOST_TYPEOF_SEQ_ENUM(Params,BOOST_TYPEOF_REGISTER_DECLARE_DECODER_TYPE_PARAM_PAIR) >\
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struct decode_params;\
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template<BOOST_TYPEOF_SEQ_ENUM(Params,BOOST_TYPEOF_REGISTER_DECODER_TYPE_PARAM_PAIR) >\
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struct decode_params<BOOST_TYPEOF_SEQ_ENUM(Params,BOOST_TYPEOF_PLACEHOLDER_TYPES) >\
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{\
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typedef Name<BOOST_PP_ENUM_PARAMS(BOOST_PP_SEQ_SIZE(Params),T)> type;\
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};\
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};
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//Template template param decoding
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#define BOOST_TYPEOF_TYPEDEF_DECODED_TEMPLATE_TEMPLATE_TYPE(Name,Params)\
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typedef typename BOOST_TYPEOF_DECODE_NESTED_TEMPLATE_HELPER_NAME::decode_params<BOOST_PP_ENUM_PARAMS(BOOST_PP_SEQ_SIZE(Params),P)>::type type;
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#else
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#define BOOST_TYPEOF_REGISTER_DECODE_NESTED_TEMPLATE_HELPER_IMPL(Name,Params,ID)
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//Template template param decoding
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#define BOOST_TYPEOF_TYPEDEF_DECODED_TEMPLATE_TEMPLATE_TYPE(Name,Params)\
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template<BOOST_TYPEOF_SEQ_ENUM(Params,BOOST_TYPEOF_REGISTER_DECLARE_DECODER_TYPE_PARAM_PAIR) >\
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struct decode_params;\
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template<BOOST_TYPEOF_SEQ_ENUM(Params,BOOST_TYPEOF_REGISTER_DECODER_TYPE_PARAM_PAIR) >\
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struct decode_params<BOOST_TYPEOF_SEQ_ENUM(Params,BOOST_TYPEOF_PLACEHOLDER_TYPES) >\
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{\
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typedef Name<BOOST_PP_ENUM_PARAMS(BOOST_PP_SEQ_SIZE(Params),T)> type;\
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};\
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typedef typename decode_params<BOOST_PP_ENUM_PARAMS(BOOST_PP_SEQ_SIZE(Params),P)>::type type;
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#endif
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#define BOOST_TYPEOF_REGISTER_DECLARE_DECODER_TYPE_PARAM_PAIR(z,n,elem) \
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BOOST_TYPEOF_VIRTUAL(DECLARATION_TYPE, elem)(elem) BOOST_PP_CAT(T, n)
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// BOOST_TYPEOF_HAS_TEMPLATES
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#define BOOST_TYPEOF_HAS_TEMPLATES(Params)\
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BOOST_PP_SEQ_FOLD_LEFT(BOOST_TYPEOF_HAS_TEMPLATES_OP, 0, Params)
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#define BOOST_TYPEOF_HAS_TEMPLATES_OP(s, state, elem)\
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BOOST_PP_OR(state, BOOST_TYPEOF_VIRTUAL(ISTEMPLATE, elem))
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//Define template template arguments
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#define BOOST_TYPEOF_REGISTER_TEMPLATE_TEMPLATE_IMPL(Name,Params,ID)\
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BOOST_PP_IF(BOOST_TYPEOF_HAS_TEMPLATES(Params),\
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BOOST_TYPEOF_REGISTER_DECODE_NESTED_TEMPLATE_HELPER_IMPL,\
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BOOST_TYPEOF_REGISTER_TYPE_FOR_TEMPLATE_TEMPLATE)(Name,Params,ID)
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#endif //BOOST_TYPEOF_TEMPLATE_TEMPLATE_PARAM_HPP_INCLUDED
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