203 lines
7.9 KiB
Plaintext
203 lines
7.9 KiB
Plaintext
#if !defined(BOOST_PROTO_DONT_USE_PREPROCESSED_FILES)
|
|
|
|
#include <boost/proto/transform/detail/preprocessed/make.hpp>
|
|
|
|
#elif !defined(BOOST_PP_IS_ITERATING)
|
|
|
|
#define BOOST_PROTO_MAKE_IF(Z, M, DATA) \
|
|
make_if_<BOOST_PP_CAT(A, M), Expr, State, Data> \
|
|
/**/
|
|
|
|
#define BOOST_PROTO_MAKE_IF_TYPE(Z, M, DATA) \
|
|
typename BOOST_PROTO_MAKE_IF(Z, M, DATA) ::type \
|
|
/**/
|
|
|
|
#define BOOST_PROTO_MAKE_IF_APPLIED(Z, M, DATA) \
|
|
BOOST_PROTO_MAKE_IF(Z, M, DATA) ::applied || \
|
|
/**/
|
|
|
|
#define BOOST_PROTO_CONSTRUCT_ARG(Z, M, DATA) \
|
|
detail::as_lvalue( \
|
|
typename when<_, BOOST_PP_CAT(A, M)>::template impl<Expr, State, Data>()(e, s, d) \
|
|
) \
|
|
/**/
|
|
|
|
#if defined(__WAVE__) && defined(BOOST_PROTO_CREATE_PREPROCESSED_FILES)
|
|
#pragma wave option(preserve: 2, line: 0, output: "preprocessed/make.hpp")
|
|
#endif
|
|
|
|
///////////////////////////////////////////////////////////////////////////////
|
|
/// \file make.hpp
|
|
/// Contains definition of the make<> transform.
|
|
//
|
|
// Copyright 2008 Eric Niebler. 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)
|
|
|
|
#if defined(__WAVE__) && defined(BOOST_PROTO_CREATE_PREPROCESSED_FILES)
|
|
#pragma wave option(preserve: 1)
|
|
#endif
|
|
|
|
#define BOOST_PP_ITERATION_PARAMS_1 \
|
|
(3, (0, BOOST_PROTO_MAX_ARITY, <boost/proto/transform/detail/make.hpp>))
|
|
#include BOOST_PP_ITERATE()
|
|
|
|
#if defined(__WAVE__) && defined(BOOST_PROTO_CREATE_PREPROCESSED_FILES)
|
|
#pragma wave option(output: null)
|
|
#endif
|
|
|
|
#undef BOOST_PROTO_CONSTRUCT_ARG
|
|
#undef BOOST_PROTO_MAKE_IF_APPLIED
|
|
#undef BOOST_PROTO_MAKE_IF_TYPE
|
|
#undef BOOST_PROTO_MAKE_IF
|
|
|
|
#else
|
|
|
|
#define N BOOST_PP_ITERATION()
|
|
|
|
namespace detail
|
|
{
|
|
#if N > 0
|
|
|
|
template<
|
|
template<BOOST_PP_ENUM_PARAMS(N, typename BOOST_PP_INTERCEPT)> class R
|
|
BOOST_PP_ENUM_TRAILING_PARAMS(N, typename A)
|
|
, typename Expr, typename State, typename Data
|
|
>
|
|
struct make_<
|
|
R<BOOST_PP_ENUM_PARAMS(N, A)>
|
|
, Expr, State, Data
|
|
BOOST_PROTO_TEMPLATE_ARITY_PARAM(N)
|
|
>
|
|
: nested_type_if<
|
|
R<BOOST_PP_ENUM(N, BOOST_PROTO_MAKE_IF_TYPE, ~)>
|
|
, (BOOST_PP_REPEAT(N, BOOST_PROTO_MAKE_IF_APPLIED, ~) false)
|
|
>
|
|
{};
|
|
|
|
template<
|
|
template<BOOST_PP_ENUM_PARAMS(N, typename BOOST_PP_INTERCEPT)> class R
|
|
BOOST_PP_ENUM_TRAILING_PARAMS(N, typename A)
|
|
, typename Expr, typename State, typename Data
|
|
>
|
|
struct make_<
|
|
noinvoke<R<BOOST_PP_ENUM_PARAMS(N, A)> >
|
|
, Expr, State, Data
|
|
BOOST_PROTO_TEMPLATE_ARITY_PARAM(1)
|
|
>
|
|
{
|
|
typedef R<BOOST_PP_ENUM(N, BOOST_PROTO_MAKE_IF_TYPE, ~)> type;
|
|
static bool const applied = true;
|
|
};
|
|
|
|
#endif
|
|
|
|
template<typename R BOOST_PP_ENUM_TRAILING_PARAMS(N, typename A)>
|
|
struct is_applyable<R(BOOST_PP_ENUM_PARAMS(N, A))>
|
|
: mpl::true_
|
|
{};
|
|
|
|
template<typename R BOOST_PP_ENUM_TRAILING_PARAMS(N, typename A)>
|
|
struct is_applyable<R(*)(BOOST_PP_ENUM_PARAMS(N, A))>
|
|
: mpl::true_
|
|
{};
|
|
|
|
template<typename T, typename A>
|
|
struct construct_<proto::expr<T, A, N>, true>
|
|
{
|
|
typedef proto::expr<T, A, N> result_type;
|
|
|
|
template<BOOST_PP_ENUM_PARAMS(BOOST_PP_MAX(N, 1), typename A)>
|
|
BOOST_FORCEINLINE
|
|
result_type operator ()(BOOST_PP_ENUM_BINARY_PARAMS(BOOST_PP_MAX(N, 1), A, &a)) const
|
|
{
|
|
return result_type::make(BOOST_PP_ENUM_PARAMS(BOOST_PP_MAX(N, 1), a));
|
|
}
|
|
};
|
|
|
|
template<typename T, typename A>
|
|
struct construct_<proto::basic_expr<T, A, N>, true>
|
|
{
|
|
typedef proto::basic_expr<T, A, N> result_type;
|
|
|
|
template<BOOST_PP_ENUM_PARAMS(BOOST_PP_MAX(N, 1), typename A)>
|
|
BOOST_FORCEINLINE
|
|
result_type operator ()(BOOST_PP_ENUM_BINARY_PARAMS(BOOST_PP_MAX(N, 1), A, &a)) const
|
|
{
|
|
return result_type::make(BOOST_PP_ENUM_PARAMS(BOOST_PP_MAX(N, 1), a));
|
|
}
|
|
};
|
|
|
|
template<typename Type BOOST_PP_ENUM_TRAILING_PARAMS(N, typename A)>
|
|
BOOST_FORCEINLINE
|
|
Type construct(BOOST_PP_ENUM_BINARY_PARAMS(N, A, &a))
|
|
{
|
|
return construct_<Type>()(BOOST_PP_ENUM_PARAMS(N, a));
|
|
}
|
|
|
|
} // namespace detail
|
|
|
|
/// \brief A PrimitiveTransform which computes a type by evaluating any
|
|
/// nested transforms and then constructs an object of that type with the
|
|
/// current expression, state and data, transformed according
|
|
/// to \c A0 through \c AN.
|
|
template<typename Object BOOST_PP_ENUM_TRAILING_PARAMS(N, typename A)>
|
|
struct make<Object(BOOST_PP_ENUM_PARAMS(N, A))>
|
|
: transform<make<Object(BOOST_PP_ENUM_PARAMS(N, A))> >
|
|
{
|
|
template<typename Expr, typename State, typename Data>
|
|
struct impl : transform_impl<Expr, State, Data>
|
|
{
|
|
/// \brief <tt>boost::result_of\<make\<Object\>(Expr, State, Data)\>::type</tt>
|
|
typedef typename detail::make_if_<Object, Expr, State, Data>::type result_type;
|
|
|
|
/// Let \c ax be <tt>when\<_, Ax\>()(e, s, d)</tt>
|
|
/// for each \c x in <tt>[0,N]</tt>.
|
|
/// Return <tt>result_type(a0, a1,... aN)</tt>.
|
|
///
|
|
/// \param e The current expression
|
|
/// \param s The current state
|
|
/// \param d An arbitrary data
|
|
BOOST_FORCEINLINE
|
|
result_type operator ()(
|
|
typename impl::expr_param e
|
|
, typename impl::state_param s
|
|
, typename impl::data_param d
|
|
) const
|
|
{
|
|
proto::detail::ignore_unused(e);
|
|
proto::detail::ignore_unused(s);
|
|
proto::detail::ignore_unused(d);
|
|
return detail::construct<result_type>(BOOST_PP_ENUM(N, BOOST_PROTO_CONSTRUCT_ARG, DATA));
|
|
}
|
|
};
|
|
};
|
|
|
|
#if N > 0
|
|
/// \brief A PrimitiveTransform which computes a type by evaluating any
|
|
/// nested transforms and then constructs an object of that type with the
|
|
/// current expression, state and data, transformed according
|
|
/// to \c A0 through \c AN.
|
|
template<typename Object BOOST_PP_ENUM_TRAILING_PARAMS(N, typename A)>
|
|
struct make<Object(BOOST_PP_ENUM_PARAMS(N, A)...)>
|
|
: transform<make<Object(BOOST_PP_ENUM_PARAMS(N, A)...)> >
|
|
{
|
|
template<typename Expr, typename State, typename Data>
|
|
struct impl
|
|
: make<
|
|
typename detail::expand_pattern<
|
|
proto::arity_of<Expr>::value
|
|
, BOOST_PP_CAT(A, BOOST_PP_DEC(N))
|
|
, detail::BOOST_PP_CAT(expand_pattern_rest_, BOOST_PP_DEC(N))<
|
|
Object
|
|
BOOST_PP_ENUM_TRAILING_PARAMS(BOOST_PP_DEC(N), A)
|
|
>
|
|
>::type
|
|
>::template impl<Expr, State, Data>
|
|
{};
|
|
};
|
|
#endif
|
|
#undef N
|
|
|
|
#endif
|