1 files changed, 88 insertions, 0 deletions
diff --git a/3rdParty/Boost/src/boost/spirit/home/support/nonterminal/expand_arg.hpp b/3rdParty/Boost/src/boost/spirit/home/support/nonterminal/expand_arg.hpp
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+++ b/3rdParty/Boost/src/boost/spirit/home/support/nonterminal/expand_arg.hpp
@@ -0,0 +1,88 @@
+/*=============================================================================
+    Copyright (c) 2001-2011 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_SPIRIT_EXPAND_ARG_FEB_19_2007_1107AM)
+#define BOOST_SPIRIT_EXPAND_ARG_FEB_19_2007_1107AM
+
+#if defined(_MSC_VER)
+#pragma once
+#endif
+
+#include <boost/mpl/bool.hpp>
+#include <boost/mpl/or.hpp>
+#include <boost/mpl/identity.hpp>
+#include <boost/mpl/eval_if.hpp>
+#include <boost/utility/result_of.hpp>
+#include <boost/type_traits/is_scalar.hpp>
+#include <boost/spirit/home/support/string_traits.hpp>
+
+namespace boost { namespace spirit { namespace detail
+{
+    ///////////////////////////////////////////////////////////////////////////
+    template <typename Context>
+    struct expand_arg
+    {
+        template <typename T>
+        struct result_type
+        {
+            // This is a temporary hack. The better way is to detect if T
+            // can be called given unused context.
+            typedef typename
+                mpl::eval_if<
+                    mpl::or_<is_scalar<T>, traits::is_string<T> >
+                  , mpl::identity<T const &>
+                  , boost::result_of<T(unused_type, Context)>
+                >::type
+            type;
+        };
+
+        template <typename T>
+        struct result;
+
+        template <typename F, typename A0>
+        struct result<F(A0)>
+          : result_type<A0> {};
+
+        template <typename F, typename A0>
+        struct result<F(A0&)>
+          : result_type<A0> {};
+
+        expand_arg(Context& context)
+          : context(context)
+        {
+        }
+
+        template <typename T>
+        typename result_type<T>::type
+        call(T const& f, mpl::false_) const
+        {
+            return f(unused, context);
+        }
+
+        template <typename T>
+        typename result_type<T>::type
+        call(T const& val, mpl::true_) const
+        {
+            return val;
+        }
+
+        template <typename T>
+        typename result_type<T>::type
+        operator()(T const& x) const
+        {
+            return call(x, mpl::or_<is_scalar<T>, traits::is_string<T> >());
+        }
+
+        Context& context;
+
+    private:
+        // silence MSVC warning C4512: assignment operator could not be generated
+        expand_arg& operator= (expand_arg const&);
+    };
+
+}}}
+
+#endif