Bind.XmlSpecReader.ReadDelegates C# (CSharp) Method

        private DelegateCollection ReadDelegates(XPathNavigator specs)
        {
            DelegateCollection delegates = new DelegateCollection();

            foreach (XPathNavigator node in specs.SelectChildren("function", String.Empty))
            {
                var name = node.GetAttribute("name", String.Empty);

                // Check whether we are adding to an existing delegate or creating a new one.
                Delegate d = null;
                if (delegates.ContainsKey(name))
                {
                    d = delegates[name];
                }
                else
                {
                    d = new Delegate();
                    d.Name = name;
                    d.Version = node.GetAttribute("version", String.Empty);
                    d.Category = node.GetAttribute("category", String.Empty);
                    d.DeprecatedVersion = node.GetAttribute("deprecated", String.Empty);
                    d.Deprecated = !String.IsNullOrEmpty(d.DeprecatedVersion);
                }

                foreach (XPathNavigator param in node.SelectChildren(XPathNodeType.Element))
                {
                    switch (param.Name)
                    {
                        case "returns":
                            d.ReturnType.CurrentType = param.GetAttribute("type", String.Empty);
                            break;

                        case "param":
                            Parameter p = new Parameter();
                            p.CurrentType = param.GetAttribute("type", String.Empty);
                            p.Name = param.GetAttribute("name", String.Empty);

                            string element_count = param.GetAttribute("elementcount", String.Empty);
                            if (String.IsNullOrEmpty(element_count))
                                element_count = param.GetAttribute("count", String.Empty);
                            if (!String.IsNullOrEmpty(element_count))
                                p.ElementCount = Int32.Parse(element_count);

                            p.Flow = Parameter.GetFlowDirection(param.GetAttribute("flow", String.Empty));

                            d.Parameters.Add(p);
                            break;
                    }
                }

                delegates.Add(d);
            }

            return delegates;
        }