comparison DEPENDENCIES/generic/include/boost/log/support/spirit_classic.hpp @ 101:c530137014c0

Update Boost headers (1.58.0)

 /*
- *          Copyright Andrey Semashev 2007 - 2013.
+ *          Copyright Andrey Semashev 2007 - 2015.
  * 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)
  */
 /*!

 
 #ifndef BOOST_LOG_SUPPORT_SPIRIT_CLASSIC_HPP_INCLUDED_
 #define BOOST_LOG_SUPPORT_SPIRIT_CLASSIC_HPP_INCLUDED_
 
 #include <boost/mpl/bool.hpp>
+#include <boost/utility/enable_if.hpp>
 #include <boost/log/detail/config.hpp>
 #include <boost/log/utility/functional/matches.hpp>
 
 #ifdef BOOST_HAS_PRAGMA_ONCE
 #pragma once

  * or even total ignorance of this macro, if the user has included Boost.Spirit
  * headers before including this header, or uses Boost.Spirit without the macro
  * in other translation units. The only reliable way to settle this problem is to
  * define the macro for the whole project (i.e. all translation units).
  */
-#warning Boost.Log: Boost.Spirit requires BOOST_SPIRIT_THREADSAFE macro to be defined if parsers are used in a multithreaded context. It is strongly recommended to define this macro project-wide.
+#if defined(__GNUC__)
+#pragma message "Boost.Log: Boost.Spirit requires BOOST_SPIRIT_THREADSAFE macro to be defined if parsers are used in a multithreaded context. It is strongly recommended to define this macro project-wide."
+#elif defined(_MSC_VER)
+#pragma message("Boost.Log: Boost.Spirit requires BOOST_SPIRIT_THREADSAFE macro to be defined if parsers are used in a multithreaded context. It is strongly recommended to define this macro project-wide.")
+#endif
 #define BOOST_SPIRIT_THREADSAFE 1
 #endif // !defined(BOOST_LOG_NO_THREADS) && !defined(BOOST_SPIRIT_THREADSAFE)
 
 #include <boost/spirit/include/classic_parser.hpp>
 

 
 BOOST_LOG_OPEN_NAMESPACE
 
 namespace aux {
 
+//! This tag type is used if an expression is recognized as a Boost.Spirit.Classic expression
+struct boost_spirit_classic_expression_tag;
+
 //! The trait verifies if the type can be converted to a Boost.Spirit (classic) parser
 template< typename T >
-struct is_spirit_classic_parser< T, true >
+struct is_spirit_classic_parser
 {
 private:
     typedef char yes_type;
     struct no_type { char dummy[2]; };
 

 public:
     enum { value = sizeof(check_spirit_classic_parser(get_T())) == sizeof(yes_type) };
     typedef mpl::bool_< value > type;
 };
 
-//! The matching functor implementation
-template< >
-struct matches_fun_impl< boost_spirit_classic_expression_tag >
+//! The metafunction detects the matching expression kind and returns a tag that is used to specialize \c match_traits
+template< typename ExpressionT >
+struct matching_expression_kind< ExpressionT, typename boost::enable_if_c< is_spirit_classic_parser< ExpressionT >::value >::type >
 {
-    template< typename StringT, typename ParserT >
-    static bool matches(
-        StringT const& str,
-        ParserT const& expr)
+    typedef boost_spirit_classic_expression_tag type;
+};
+
+//! The matching function implementation
+template< typename ExpressionT >
+struct match_traits< ExpressionT, boost_spirit_classic_expression_tag >
+{
+    typedef ExpressionT compiled_type;
+    static compiled_type compile(ExpressionT const& expr) { return expr; }
+
+    template< typename StringT >
+    static bool matches(StringT const& str, ExpressionT const& expr)
     {
         typedef typename StringT::const_iterator const_iterator;
         spirit::classic::parse_info< const_iterator > info =
             spirit::classic::parse(str.begin(), str.end(), expr);
         return info.full;