Пример #1
0
 public void AppendXml(XDoc doc)
 {
     doc.Start("param").Attr("name", Name).Attr("type", DekiScriptLiteral.AsScriptTypeName(ScriptType));
     if (Default.IsNil)
     {
         doc.Attr("optional", Optional ? "true" : null);
     }
     else
     {
         doc.Attr("default", Default.ToString());
     }
     doc.Value(Hint);
     doc.End();
 }
        //--- Methods ---
        public XDoc ToXml(XUri uri)
        {
            XDoc result = new XDoc("function");

            result.Attr("transform", Transform);
            if (IsProperty)
            {
                result.Attr("usage", "property");
            }
            result.Elem("name", Name);
            result.Elem("uri", uri);
            result.Elem("description", Description);
            if (Access != DreamAccess.Public)
            {
                result.Elem("access", Access.ToString().ToLowerInvariant());
            }
            foreach (DekiScriptParameter param in Parameters)
            {
                param.AppendXml(result);
            }
            result.Start("return").Attr("type", DekiScriptLiteral.AsScriptTypeName(ReturnType)).End();
            return(result);
        }
Пример #3
0
        private DekiScriptLiteral InvokeHelper(DekiScriptRuntime runtime, DekiScriptList args)
        {
            // convert passed in arguments
            object[] arguments = new object[Parameters.Length];
            int      i         = 0;

            try {
                for (; i < Parameters.Length; ++i)
                {
                    var value = args[i].NativeValue;

                    // check if we need to convert the value
                    if ((value != null) && (Parameters[i].NativeType != typeof(object)))
                    {
                        // check for the special case where we cast from XML to STR
                        if ((value is XDoc) && (Parameters[i].NativeType == typeof(string)))
                        {
                            XDoc xml = (XDoc)value;
                            if (xml.HasName("html"))
                            {
                                value = xml["body[not(@target)]"].Contents;
                            }
                            else
                            {
                                value = xml.ToString();
                            }
                        }
                        else
                        {
                            // rely on the default type conversion rules
                            value = SysUtil.ChangeType(value, Parameters[i].NativeType);
                        }
                    }
                    arguments[i] = value;
                }
            } catch {
                throw new ArgumentException(string.Format("could not convert parameter '{0}' (index {1}) from {2} to {3}", Parameters[i].Name, i, args[i].ScriptTypeName, DekiScriptLiteral.AsScriptTypeName(Parameters[i].ScriptType)));
            }

            // invoke method
            var result = _invoke(runtime, arguments);

            // check if result is a URI
            if (result is XUri)
            {
                // normalize URI if possible
                DreamContext context = DreamContext.CurrentOrNull;
                if (context != null)
                {
                    result = context.AsPublicUri((XUri)result);
                }
            }
            var literal = DekiScriptLiteral.FromNativeValue(result);

            try {
                return(literal.Convert(ReturnType));
            } catch (DekiScriptInvalidCastException) {
                throw new DekiScriptInvalidReturnCastException(Location.None, literal.ScriptType, ReturnType);
            }
        }