1 files changed, 83 insertions, 0 deletions
diff --git a/Lib/ruby/std_unordered_map.i b/Lib/ruby/std_unordered_map.i
new file mode 100644
index 000000000..48c875214
--- /dev/null
+++ b/Lib/ruby/std_unordered_map.i
@@ -0,0 +1,83 @@
+//
+//   Maps
+//
+%include <std_map.i>
+
+%fragment("StdUnorderedMapTraits","header",fragment="StdMapCommonTraits")
+{
+  namespace swig {
+    template <class RubySeq, class K, class T, class Hash, class Compare, class Alloc>
+    inline void
+    assign(const RubySeq& rubyseq, std::unordered_map<K,T,Hash,Compare,Alloc> *map) {
+      typedef typename std::unordered_map<K,T,Hash,Compare,Alloc>::value_type value_type;
+      typename RubySeq::const_iterator it = rubyseq.begin();
+      for (;it != rubyseq.end(); ++it) {
+	map->insert(value_type(it->first, it->second));
+      }
+    }
+
+    template <class K, class T, class Hash, class Compare, class Alloc>
+    struct traits_asptr<std::unordered_map<K,T,Hash,Compare,Alloc> >  {
+      typedef std::unordered_map<K,T,Hash,Compare,Alloc> map_type;
+      static int asptr(VALUE obj, map_type **val) {
+	int res = SWIG_ERROR;
+	if (TYPE(obj) == T_HASH) {
+	  static ID id_to_a = rb_intern("to_a");
+	  VALUE items = rb_funcall(obj, id_to_a, 0);
+	  res = traits_asptr_stdseq<std::unordered_map<K,T,Hash,Compare,Alloc>, std::pair<K, T> >::asptr(items, val);
+	} else {
+	  map_type *p;
+	  swig_type_info *descriptor = swig::type_info<map_type>();
+	  res = descriptor ? SWIG_ConvertPtr(obj, (void **)&p, descriptor, 0) : SWIG_ERROR;
+	  if (SWIG_IsOK(res) && val)  *val = p;
+	}
+	return res;
+      }
+    };
+
+    template <class K, class T, class Hash, class Compare, class Alloc>
+    struct traits_from<std::unordered_map<K,T,Hash,Compare,Alloc> >  {
+      typedef std::unordered_map<K,T,Hash,Compare,Alloc> map_type;
+      typedef typename map_type::const_iterator const_iterator;
+      typedef typename map_type::size_type size_type;
+
+      static VALUE from(const map_type& map) {
+	swig_type_info *desc = swig::type_info<map_type>();
+	if (desc && desc->clientdata) {
+	  return SWIG_NewPointerObj(new map_type(map), desc, SWIG_POINTER_OWN);
+	} else {
+	  size_type size = map.size();
+	  int rubysize = (size <= (size_type) INT_MAX) ? (int) size : -1;
+	  if (rubysize < 0) {
+	    SWIG_RUBY_THREAD_BEGIN_BLOCK;
+	    rb_raise(rb_eRuntimeError, "map size not valid in Ruby");
+	    SWIG_RUBY_THREAD_END_BLOCK;
+	    return Qnil;
+	  }
+	  VALUE obj = rb_hash_new();
+	  for (const_iterator i= map.begin(); i!= map.end(); ++i) {
+	    VALUE key = swig::from(i->first);
+	    VALUE val = swig::from(i->second);
+	    rb_hash_aset(obj, key, val);
+	  }
+	  return obj;
+	}
+      }
+    };
+  }
+}
+
+#define %swig_unordered_map_common(Map...) %swig_map_common(Map)
+#define %swig_unordered_map_methods(Map...) %swig_map_methods(Map)
+
+%rename("delete")     std::unordered_map::__delete__;
+%rename("reject!")    std::unordered_map::reject_bang;
+%rename("map!")       std::unordered_map::map_bang;
+%rename("empty?")     std::unordered_map::empty;
+%rename("include?")   std::unordered_map::__contains__ const;
+%rename("has_key?")   std::unordered_map::has_key const;
+
+%mixin std::unordered_map "Enumerable";
+%alias std::unordered_map::push          "<<";
+
+%include <std/std_unordered_map.i>