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-rw-r--r--3rdParty/Boost/src/boost/spirit/home/phoenix/core/detail/function_eval.hpp142
1 files changed, 142 insertions, 0 deletions
diff --git a/3rdParty/Boost/src/boost/spirit/home/phoenix/core/detail/function_eval.hpp b/3rdParty/Boost/src/boost/spirit/home/phoenix/core/detail/function_eval.hpp
new file mode 100644
index 0000000..711b32c
--- /dev/null
+++ b/3rdParty/Boost/src/boost/spirit/home/phoenix/core/detail/function_eval.hpp
@@ -0,0 +1,142 @@
+/*=============================================================================
+ 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)
+==============================================================================*/
+#if !defined(BOOST_PP_IS_ITERATING)
+#if !defined(PHOENIX_CORE_DETAIL_FUNCTION_EVAL_HPP)
+#define PHOENIX_CORE_DETAIL_FUNCTION_EVAL_HPP
+
+#include <boost/preprocessor/iterate.hpp>
+#include <boost/preprocessor/enum.hpp>
+#include <boost/preprocessor/repeat.hpp>
+#include <boost/preprocessor/dec.hpp>
+#include <boost/mpl/eval_if.hpp>
+#include <boost/mpl/find.hpp>
+#include <boost/mpl/identity.hpp>
+#include <boost/type_traits/is_same.hpp>
+#include <boost/type_traits/remove_reference.hpp>
+
+// we assume that mpl::vectorN, where N = PHOENIX_COMPOSITE_LIMIT
+// is included already.
+
+namespace boost { namespace phoenix { namespace detail
+{
+ template <int N>
+ struct function_eval;
+
+ template <>
+ struct function_eval<0>
+ {
+ template <typename Env, typename F>
+ struct result
+ {
+ typedef typename
+ remove_reference<
+ typename F::template result<Env>::type
+ >::type
+ fn;
+ typedef typename fn::result_type type;
+ };
+
+ template <typename RT, typename Env, typename F>
+ static RT
+ eval(Env const& env, F const& f)
+ {
+ return f.eval(env)();
+ }
+ };
+
+ template <typename T>
+ T& help_rvalue_deduction(T& x)
+ {
+ return x;
+ }
+
+ template <typename T>
+ T const& help_rvalue_deduction(T const& x)
+ {
+ return x;
+ }
+
+// When we call f(_0, _1...) we remove the reference when deducing f's
+// return type. $$$ Explain why $$$
+
+#define PHOENIX_GET_ARG(z, n, data) \
+ typedef typename \
+ remove_reference< \
+ typename BOOST_PP_CAT(A, n)::template result<Env>::type \
+ >::type \
+ BOOST_PP_CAT(a, n);
+
+#define PHOENIX_EVAL_ARG(z, n, data) \
+ help_rvalue_deduction(BOOST_PP_CAT(_, n).eval(env))
+
+#define BOOST_PP_ITERATION_PARAMS_1 \
+ (3, (1, BOOST_PP_DEC(PHOENIX_COMPOSITE_LIMIT), \
+ "boost/spirit/home/phoenix/core/detail/function_eval.hpp"))
+#include BOOST_PP_ITERATE()
+
+}}} // namespace boost::phoenix::detail
+
+#undef PHOENIX_GET_ARG
+#undef PHOENIX_EVAL_ARG
+#endif
+
+///////////////////////////////////////////////////////////////////////////////
+//
+// Preprocessor vertical repetition code
+//
+///////////////////////////////////////////////////////////////////////////////
+#else // defined(BOOST_PP_IS_ITERATING)
+
+#define N BOOST_PP_ITERATION()
+
+ template <>
+ struct function_eval<N>
+ {
+ template <typename Env, typename F
+ , BOOST_PP_ENUM_PARAMS(N, typename A)>
+ struct result
+ {
+ typedef typename
+ remove_reference<
+ typename F::template result<Env>::type
+ >::type
+ fn;
+ BOOST_PP_REPEAT(N, PHOENIX_GET_ARG, _)
+
+ typedef BOOST_PP_CAT(mpl::vector, N)
+ <BOOST_PP_ENUM_PARAMS(N, a)>
+ args;
+
+ typedef typename
+ fn::template result<BOOST_PP_ENUM_PARAMS(N, a)>
+ function_apply;
+
+ typedef typename
+ mpl::eval_if<
+ is_same<
+ typename mpl::find<args, fusion::void_>::type
+ , typename mpl::end<args>::type>
+ , function_apply
+ , mpl::identity<fusion::void_>
+ >::type
+ type;
+ };
+
+ template <typename RT, typename Env, typename F
+ , BOOST_PP_ENUM_PARAMS(N, typename A)>
+ static RT
+ eval(Env const& env, F const& f
+ , BOOST_PP_ENUM_BINARY_PARAMS(N, A, & _))
+ {
+ return f.eval(env)(BOOST_PP_ENUM(N, PHOENIX_EVAL_ARG, _));
+ }
+ };
+
+#undef N
+#endif // defined(BOOST_PP_IS_ITERATING)
+
+