protected static object InvokeSourceFunction(object source, string functionName, List <ArgInfo> argsInfo, Func <MethodInfo, Type, string, bool> functionChecker)
{
if (argsInfo == null)
{
argsInfo = new List <ArgInfo>();
}
while (argsInfo.Count < 15)
{
argsInfo.Add(new ArgInfo(DependencyProperty.UnsetValue));
}
int argsCount = argsInfo.FindLastIndex(x => !x.IsUnsetValue) + 1;
Type targetType = (source as Type).Return(x => x.IsAbstract && x.IsSealed, () => false) ? source as Type : source.GetType();
MethodInfo info = GetMethodInfo(targetType, functionName, argsCount, argsInfo.Take(argsCount).Select(x => x.Type).ToArray());
if (!functionChecker.Invoke(info, targetType, functionName))
{
return(DependencyProperty.UnsetValue);
}
ParameterInfo[] paramsInfo = info.GetParameters();
argsCount = paramsInfo.Length;
int count = 0;
object[] param = argsInfo.Take(argsCount).Select(x => {
ParameterInfo parInfo = paramsInfo[count++];
if (x.IsUnsetValue && parInfo.IsOptional && parInfo.Attributes.HasFlag(ParameterAttributes.HasDefault))
{
return(parInfo.RawDefaultValue);
}
else
{
return(TypeCastHelper.TryCast(x.Value, parInfo.ParameterType));
}
}).ToArray();
return(info.Invoke(source, param));
}
public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
{
return(TypeCastHelper.TryCast(value, targetType));
}
