153 lines
3.7 KiB
C++
153 lines
3.7 KiB
C++
// file : xsd/cxx/tree/stream-insertion-map.hxx
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// license : GNU GPL v2 + exceptions; see accompanying LICENSE file
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#ifndef XSD_CXX_TREE_STREAM_INSERTION_MAP_HXX
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#define XSD_CXX_TREE_STREAM_INSERTION_MAP_HXX
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#include <map>
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#include <string>
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#include <cstddef> // std::size_t
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#include <typeinfo>
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#include <xsd/cxx/tree/elements.hxx>
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#include <xsd/cxx/tree/ostream.hxx>
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#include <xsd/cxx/xml/qualified-name.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 S, typename C>
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struct stream_insertion_map
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{
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typedef std::type_info type_id;
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typedef xml::qualified_name<C> qualified_name;
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typedef void (*inserter) (ostream<S>&, const type&);
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stream_insertion_map ();
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void
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register_type (const type_id&,
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const qualified_name& name,
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inserter,
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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 (ostream<S>&, const type&);
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public:
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struct type_info
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{
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type_info (const qualified_name& name,
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typename stream_insertion_map::inserter inserter)
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: name_ (name), inserter_ (inserter)
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{
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}
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const qualified_name&
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name () const
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{
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return name_;
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}
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typename stream_insertion_map::inserter
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inserter () const
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{
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return inserter_;
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}
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// For std::map.
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//
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type_info ()
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: name_ (std::basic_string<C> (), std::basic_string<C> ()),
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inserter_ (0)
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{
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}
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private:
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qualified_name name_;
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typename stream_insertion_map::inserter inserter_;
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};
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public:
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const type_info*
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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*, type_info, 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 S, typename C>
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struct stream_insertion_plate
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{
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static stream_insertion_map<S, C>* map;
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static std::size_t count;
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stream_insertion_plate ();
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~stream_insertion_plate ();
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};
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template<unsigned long id, typename S, typename C>
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stream_insertion_map<S, C>* stream_insertion_plate<id, S, C>::map = 0;
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template<unsigned long id, typename S, typename C>
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std::size_t stream_insertion_plate<id, S, C>::count = 0;
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//
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//
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template<unsigned long id, typename S, typename C>
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inline stream_insertion_map<S, C>&
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stream_insertion_map_instance ()
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{
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return *stream_insertion_plate<id, S, C>::map;
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}
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//
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//
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template<typename S, typename T>
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void
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inserter_impl (ostream<S>&, const type&);
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template<unsigned long id, typename S, typename C, typename T>
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struct stream_insertion_initializer
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{
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stream_insertion_initializer (const C* name, const C* ns);
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~stream_insertion_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/stream-insertion-map.txx>
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#endif // XSD_CXX_TREE_STREAM_INSERTION_MAP_HXX
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