[Boost-bugs] [Boost C++ Libraries] #9580: [spirit.lex] self("state") += calls a wrong operator +=

Subject: [Boost-bugs] [Boost C++ Libraries] #9580: [spirit.lex] self("state") += calls a wrong operator +=
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2014-01-16 00:38:18

#9580: [spirit.lex] self("state") += calls a wrong operator +=
-------------------------------------+---------------------
 Reporter:  Vyacheslav Andrejev      |      Owner:  djowel
     Type:  Bugs                     |     Status:  new
Milestone:  To Be Determined         |  Component:  spirit
  Version:  Boost Development Trunk  |   Severity:  Problem
 Keywords:                           |
-------------------------------------+---------------------
 This construct
 {{{
 #!cpp
       this->self("SOME_STATE") += someTokenDef;
 }}}
 doesn't call
 {{{
 #!cpp
         template <typename LexerDef, typename Expr>
         inline lexer_def_<LexerDef>&
         boost::spirit::lex::detail::operator+= (lexer_def_<LexerDef>&
 lexdef, Expr&& xpr)
 }}}
 as it should in order for the definition get added to the lexer. Instead
 this operator
 {{{
 #!cpp
         template <typename Left, typename Right>
         typename boost::proto::detail::enable_binary<
             deduce_domain
           , deduce_domain::proto_grammar
           , boost::mpl::or_<is_extension<Left>, is_extension<Right> >
           , boost::proto::tag::plus_assign
           , Left const &
           , Right const &
           >::type const
         operator +=(Left &&left, Right &&right)
         {
             return boost::proto::detail::make_expr_<
                 boost::proto::tag::plus_assign
               , deduce_domain
               , Left const &
               , Right const &
               >()(left, right);
         }
 }}}
 is called from boost::proto::exprns_ namespace.

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/9580>
Boost C++ Libraries <http://www.boost.org/>
Boost provides free peer-reviewed portable C++ source libraries.