private void loadTypeConverters()
{
writeDebug($"Found {TypeResolver.Count()} type resolvers.");
}
private object getTypedParameterValue(ParameterAttribute para, CommandLineParameterInfo pi)
{
if (para.Type == typeof(bool))
{
return(pi.Exists);
}
bool isList = typeof(IEnumerable).IsAssignableFrom(para.Type) && para.Type != typeof(string);
if (pi.HasValue)
{
var value = pi.Value;
if (para.Type.IsEnum)
{
if (Enum.TryParse(para.Type, value, ignoreCase: true, out object res))
{
return(res);
}
else
{
throw new InvalidParameterException(para);
}
}
if (TypeResolver.IsResolvableType(para.Type))
{
return(TypeResolver.Resolve(value, para.Type));
}
if (isList)
{
var separator = " ";
if (!string.IsNullOrWhiteSpace(para.ListSeparator))
{
separator = para.ListSeparator;
}
var splitValue = value.Split(new string[] { separator }, StringSplitOptions.RemoveEmptyEntries);
var underlyingType = para.Type.GetGenericArguments().FirstOrDefault();
var constructedListType = typeof(List <>).MakeGenericType(underlyingType);
var constructedList = (IList)Activator.CreateInstance(constructedListType);
try
{
if (Parameter.IsSimpleType(underlyingType))
{
splitValue.ToList().ForEach(x => constructedList.Add(Convert.ChangeType(x, underlyingType)));
}
else if (TypeResolver.IsResolvableType(underlyingType))
{
splitValue.ToList().ForEach(x => constructedList.Add(TypeResolver.Resolve(x, underlyingType)));
}
}
catch (FormatException)
{
throw new InvalidParameterException(para);
}
return(constructedList);
}
else
{
return(Convert.ChangeType(value, para.Type));
}
}
else
{
if (para.IsRequired)
{
throw new ParameterMissingException(para);
}
else
{
return(null);
}
}
}