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);
}
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);
}
}