From Marco Jez, updates to osgIntrospection.

src/osgIntrospection/MethodInfo.cpp

@@ -13,3 +13,48 @@ void MethodInfo::getInheritedProviders(CustomAttributeProviderList &providers) c
         }
     }
 }
+
+bool MethodInfo::overrides(const MethodInfo *other) const
+{
+	if (isConst() != other->isConst()) return false;
+	if (decltype_ != other->decltype_) return false;
+	if (rtype_ != other->rtype_) return false;
+	if (name_ != other->name_) return false;
+	if (params_.size() != other->params_.size()) return false;
+
+	ParameterInfoList::const_iterator i=params_.begin();
+	ParameterInfoList::const_iterator j=other->params_.begin();
+	for (; i!=params_.end(); ++i, ++j)
+	{
+		if (&(*i)->getParameterType() != &(*j)->getParameterType())
+			return false;
+	}
+
+	return true;
+
+/*
+	std::size_t num_fixed_1 = 0;
+	std::size_t num_optional_1 = 0;
+	for (ParameterInfoList::const_iterator i=params_.begin(); i!=params_.end(); ++i)
+	{
+		if ((*i)->getDefaultValue().isEmpty())
+			++num_fixed_1;
+		else
+			++num_optional_1;
+	}
+
+	std::size_t num_fixed_2 = 0;
+	std::size_t num_optional_2 = 0;
+	for (ParameterInfoList::const_iterator i=other->params_.begin(); i!=other->params_.end(); ++i)
+	{
+		if ((*i)->getDefaultValue().isEmpty())
+			++num_fixed_2;
+		else
+			++num_optional_2;
+	}
+
+	if (num_fixed_1 > num_fixed_2)
+	{
+	}
+*/
+}