using System; using System.Xml.XPath; using System.Xml.Xsl; namespace Castle.Components.DictionaryAdapter.Xml { [AttributeUsage(AttributeTargets.Property | AttributeTargets.Interface, AllowMultiple = true)] public abstract class XPathFunctionAttribute : Attribute, IXsltContextFunction { public static readonly XPathResultType[] NoArgs = new XPathResultType[0]; public abstract XmlName Name { get; } public abstract XPathResultType ReturnType { get; } public virtual XPathResultType[] ArgTypes => NoArgs; public virtual int Maxargs => ArgTypes.Length; public virtual int Minargs => ArgTypes.Length; public abstract object Invoke(XsltContext context, object[] args, XPathNavigator node); } }