[Boost-commit] svn:boost r68908 - trunk/boost/spirit/home/qi/action

Subject: [Boost-commit] svn:boost r68908 - trunk/boost/spirit/home/qi/action
From: joel_at_[hidden]
Date: 2011-02-14 22:35:47

Author: djowel
Date: 2011-02-14 22:35:41 EST (Mon, 14 Feb 2011)
New Revision: 68908
URL: http://svn.boost.org/trac/boost/changeset/68908

Log:
Allow attribute compatibility with semantic actions
Text files modified: 
   trunk/boost/spirit/home/qi/action/action.hpp |    10 ++++++++--                              
   1 files changed, 8 insertions(+), 2 deletions(-)

Modified: trunk/boost/spirit/home/qi/action/action.hpp
==============================================================================
--- trunk/boost/spirit/home/qi/action/action.hpp	(original)
+++ trunk/boost/spirit/home/qi/action/action.hpp	2011-02-14 22:35:41 EST (Mon, 14 Feb 2011)
@@ -103,9 +103,15 @@
           , Context& context, Skipper const& skipper
           , unused_type) const
         {
-            // synthesize the attribute since one is not supplied
             typedef typename attribute<Context, Iterator>::type attr_type;
-            typename attr_type attr;
+            typedef traits::make_attribute<attr_type, unused_type> make_attribute;
+
+            // synthesize the attribute since one is not supplied
+            typedef traits::transform_attribute<
+                typename make_attribute::type, attr_type, domain> transform;
+
+            typename make_attribute::type made_attr = make_attribute::call(unused_type());
+            typename transform::type attr = transform::pre(made_attr);
 
             Iterator save = first;
             if (subject.parse(first, last, context, skipper, attr))