private static void ParseRequiredParameters <TOptions>(string[] args, int offsetInArray, ArgumentGroupInfo TypeArgumentInfo, TOptions options, ref int currentLogicalPosition) where TOptions : new()
{
if (args.Length == 0)
{
throw new ArgumentException("Required parameters have not been specified");
}
int matchedRequiredParameters = 0;
do
{
//set the required property
PropertyInfo propInfo;
if (!TypeArgumentInfo.RequiredArguments.TryGetValue(currentLogicalPosition, out propInfo))
{
break;
}
//make sure that we don't run out of array
if (offsetInArray + currentLogicalPosition >= args.Length)
{
throw new ArgumentException("Required parameters have not been specified");
}
var value = PropertyHelpers.GetValueFromArgsArray(args, offsetInArray, ref currentLogicalPosition, propInfo);
propInfo.SetValue(options, value);
matchedRequiredParameters++;
} while (currentLogicalPosition < args.Length);
// no more? do we have any properties that we have not yet set?
if (TypeArgumentInfo.RequiredArguments.Count != matchedRequiredParameters)
{
throw new ArgumentException("Not all required arguments have been specified");
}
}
private static List <PropertyInfo> ParseOptionalParameters <TOptions>(string[] args, int offsetInArray, ArgumentGroupInfo TypeArgumentInfo, TOptions options, ref int currentLogicalPosition) where TOptions : new()
{
// we are going to assume that all optionl parameters are not matched to values in 'args'
List <PropertyInfo> unmatched = new List <PropertyInfo>(TypeArgumentInfo.OptionalArguments.Values);
// process the optional arguments
while (offsetInArray + currentLogicalPosition < args.Length)
{
if (args[offsetInArray + currentLogicalPosition][0] != '-')
{
throw new ArgumentException("Optional parameter name should start with '-'");
}
PropertyInfo optionalProp = null;
var optionalParamName = args[offsetInArray + currentLogicalPosition].Substring(1);
if (!TypeArgumentInfo.OptionalArguments.TryGetValue(optionalParamName, out optionalProp))
{
throw new ArgumentException($"Could not find argument {args[currentLogicalPosition]}");
}
// skip over the parameter name
currentLogicalPosition++;
var value = PropertyHelpers.GetValueFromArgsArray(args, offsetInArray, ref currentLogicalPosition, optionalProp);
optionalProp.SetValue(options, value);
unmatched.Remove(optionalProp);
}
return(unmatched);
}
