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Diffstat (limited to '3rdParty/Boost/src/boost/spirit/home/phoenix/core/compose.hpp')
| -rw-r--r-- | 3rdParty/Boost/src/boost/spirit/home/phoenix/core/compose.hpp | 118 |
1 files changed, 118 insertions, 0 deletions
diff --git a/3rdParty/Boost/src/boost/spirit/home/phoenix/core/compose.hpp b/3rdParty/Boost/src/boost/spirit/home/phoenix/core/compose.hpp new file mode 100644 index 0000000..d536113 --- /dev/null +++ b/3rdParty/Boost/src/boost/spirit/home/phoenix/core/compose.hpp @@ -0,0 +1,118 @@ +/*============================================================================= + Copyright (c) 2001-2007 Joel de Guzman + + Distributed under the Boost Software License, Version 1.0. (See accompanying + file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) +==============================================================================*/ +#ifndef PHOENIX_CORE_COMPOSE_HPP +#define PHOENIX_CORE_COMPOSE_HPP + +#include <boost/mpl/eval_if.hpp> +#include <boost/mpl/identity.hpp> +#include <boost/type_traits/is_same.hpp> +#include <boost/preprocessor/repetition/enum.hpp> +#include <boost/preprocessor/repetition/enum_params.hpp> +#include <boost/preprocessor/repetition/enum_params_with_a_default.hpp> +#include <boost/spirit/home/phoenix/core/composite.hpp> +#include <boost/spirit/home/phoenix/core/value.hpp> +#include <boost/spirit/home/phoenix/core/as_actor.hpp> + +#define PHOENIX_AS_ACTOR(z, n, data) \ + typename mpl::eval_if< \ + is_same<BOOST_PP_CAT(T, n), fusion::void_> \ + , mpl::identity<fusion::void_> \ + , as_actor_base<BOOST_PP_CAT(T, n)> \ + >::type + +namespace boost { namespace phoenix +{ + +/////////////////////////////////////////////////////////////////////////////// +// +// as_composite<EvalPolicy, T0,... TN> metafunction +// +// Create a composite given an EvalPolicy and types T0..TN. +// The types are converted to an actor through the as_actor +// metafunction (see as_actor.hpp). +// +/////////////////////////////////////////////////////////////////////////////// + template < + typename EvalPolicy + , BOOST_PP_ENUM_PARAMS_WITH_A_DEFAULT( + PHOENIX_COMPOSITE_LIMIT, typename T, fusion::void_)> + struct as_composite + { + typedef composite< + EvalPolicy + , fusion::vector< + BOOST_PP_ENUM(PHOENIX_COMPOSITE_LIMIT, PHOENIX_AS_ACTOR, _)> + > + type; + }; + +/////////////////////////////////////////////////////////////////////////////// +// +// compose functions +// +// Usage: +// +// compose<EvalPolicy>(_0, _1,... _N) +// +// Returns a composite given an EvalPolicy and arguments _0.._N. +// The arguments are converted to an actor through the as_actor +// metafunction (see as_actor.hpp). +// +/////////////////////////////////////////////////////////////////////////////// + template <typename EvalPolicy> + inline actor<typename as_composite<EvalPolicy>::type> + compose() + { + return actor<typename as_composite<EvalPolicy>::type>(); + } + + template <typename EvalPolicy, typename T0> + inline actor<typename as_composite<EvalPolicy, T0>::type> + compose(T0 const& _0) + { + return actor<typename as_composite<EvalPolicy, T0>::type>( + as_actor<T0>::convert(_0) + ); + } + + template <typename EvalPolicy, typename T0, typename T1> + inline actor<typename as_composite<EvalPolicy, T0, T1>::type> + compose(T0 const& _0, T1 const& _1) + { + return actor<typename as_composite<EvalPolicy, T0, T1>::type>( + as_actor<T0>::convert(_0) + , as_actor<T1>::convert(_1) + ); + } + + // Bring in the the rest of the compose overloads + #include <boost/spirit/home/phoenix/core/detail/compose.hpp> + +/////////////////////////////////////////////////////////////////////////////// +// +// re_curry<EvalPolicy, T0,...TN> +// +// returns the result of re currying T0..TN using EvalPolicy. +// +/////////////////////////////////////////////////////////////////////////////// + template < + typename EvalPolicy + , BOOST_PP_ENUM_PARAMS_WITH_A_DEFAULT( + PHOENIX_COMPOSITE_LIMIT, typename T, fusion::void_)> + struct re_curry + { + typedef actor< + typename as_composite< + EvalPolicy + , BOOST_PP_ENUM_PARAMS(PHOENIX_COMPOSITE_LIMIT, T)>::type + > + type; + }; +}} + +#undef PHOENIX_AS_ACTOR +#endif |