113 lines
2.5 KiB
C++
113 lines
2.5 KiB
C++
// file : xsd/cxx/tree/std-ostream-map.hxx
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// license : GNU GPL v2 + exceptions; see accompanying LICENSE file
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#ifndef XSD_CXX_TREE_STD_OSTREAM_MAP_HXX
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#define XSD_CXX_TREE_STD_OSTREAM_MAP_HXX
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#include <map>
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#include <cstddef> // std::size_t
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#include <ostream>
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#include <typeinfo>
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#include <xsd/cxx/tree/elements.hxx>
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namespace xsd
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{
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namespace cxx
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{
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namespace tree
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{
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template <typename C>
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struct std_ostream_map
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{
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typedef std::type_info type_id;
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typedef void (*inserter) (std::basic_ostream<C>&, const type&);
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std_ostream_map ();
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void
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register_type (const type_id&, inserter, bool replace = true);
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void
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unregister_type (const type_id&);
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void
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insert (std::basic_ostream<C>&, const type&);
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public:
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inserter
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find (const type_id&) const;
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private:
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struct type_id_comparator
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{
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bool
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operator() (const type_id* x, const type_id* y) const
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{
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// XL C++ on AIX has buggy type_info::before() in that
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// it returns true for two different type_info objects
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// that happened to be for the same type.
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//
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#if defined(__xlC__) && defined(_AIX)
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return *x != *y && x->before (*y);
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#else
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return x->before (*y);
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#endif
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}
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};
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typedef
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std::map<const type_id*, inserter, type_id_comparator>
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type_map;
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type_map type_map_;
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};
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//
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//
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template<unsigned long id, typename C>
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struct std_ostream_plate
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{
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static std_ostream_map<C>* map;
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static std::size_t count;
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std_ostream_plate ();
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~std_ostream_plate ();
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};
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template<unsigned long id, typename C>
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std_ostream_map<C>* std_ostream_plate<id, C>::map = 0;
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template<unsigned long id, typename C>
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std::size_t std_ostream_plate<id, C>::count = 0;
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//
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//
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template<unsigned long id, typename C>
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inline std_ostream_map<C>&
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std_ostream_map_instance ()
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{
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return *std_ostream_plate<id, C>::map;
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}
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//
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//
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template<typename C, typename T>
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void
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inserter_impl (std::basic_ostream<C>&, const type&);
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template<unsigned long id, typename C, typename T>
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struct std_ostream_initializer
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{
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std_ostream_initializer ();
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~std_ostream_initializer ();
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};
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}
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}
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}
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#include <xsd/cxx/tree/std-ostream-map.txx>
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#endif // XSD_CXX_TREE_STD_OSTREAM_MAP_HXX
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