/// <summary>
/// Attempts to convert the arguments provided into objects of types required by the command executor
/// </summary>
/// <param name="ctx"></param>
protected override void ConvertArgumentsToTypes(IContextObject ctx)
{
Objects = new List <object> {
ctx
};
int index = 0;
IEnumerable <object> arguments = Input.ObjectiveExplode();
if (AdditionalArgs != null)
{
arguments = arguments.Concat(AdditionalArgs);
}
foreach (KeyValuePair <ParameterInfo, CommandParameterAttribute> kvp in ExecutorData.ParameterData)
{
//Get the number of arguments going in to the parameter
int count = kvp.Value.Repetitions <= 0 ? arguments.Count() - index
: kvp.Value.Repetitions;
if (index >= arguments.Count())
{
//If we've used all our arguments, just add empty ones to satisfy the
//method signature for the command
Objects.Add(ObjectCreator.CreateDefaultObject(kvp.Key));
continue;
}
object[] args = arguments.ReadToArray(index, count);
//If the provided object is already of the required type, add and continue
if (count == 1 && args[0].GetType() == kvp.Key.ParameterType)
{
Objects.Add(args[0]);
continue;
}
IObjectConverter converter = Registry.GetConverter(kvp.Key.ParameterType);
if (converter == null)
{
//Use the object creator to attempt a conversion
Objects.Add(ObjectCreator.CreateObject(kvp.Key.ParameterType, args, ctx));
}
else
{
//Use a defined converter.
object conversion = count > 1 ? converter.ConvertFromArray((string[])args, ctx)
: converter.ConvertFromString(args[0].ToString(), ctx);
if (conversion == null)
{
throw new CommandParsingException(
ParserFailReason.ParsingFailed,
$"Type conversion failed: Failed to convert '{string.Join(" ", args)}' to Type '{ kvp.Key.ParameterType.Name }'.",
new Exception($"Conversion failed in '{converter.GetType().Name}.{nameof(IObjectConverter.ConvertFromArray)}'")
);
}
Objects.Add(conversion);
}
index += count;
}
}
