protected T GetOptionValue <T>(OptionSpec option)
{
if (option == null)
{
throw new ArgumentNullException(nameof(option), $"{nameof(option)} is null.");
}
TypeConverter converter = TypeDescriptor.GetConverter(typeof(T));
IList <string> values;
if (m_optionValues.TryGetValue(option.Name, out values))
{
if (values.Count > 1)
{
throw new InvalidOperationException("GetOptionValue cannot be used to retreive multiple values.");
}
if (values.Count == 1)
{
try
{
return((T)converter.ConvertFromInvariantString(values.Single()));
}
catch (Exception ex)
{
throw new FormatException(String.Format("\"{0}\" is not a valid value for option /{1}: {2}", values.Single(), option, ex.Message));
}
}
}
throw new KeyNotFoundException(String.Format("Option {0} not specified.", option.Name));
}
protected bool HasOption(OptionSpec option)
{
if (option == null)
{
throw new ArgumentNullException(nameof(option), $"{nameof(option)} is null.");
}
return(m_optionValues.ContainsKey(option.Name));
}
protected bool HasValue(OptionSpec option)
{
IList <string> values;
if (!m_optionValues.TryGetValue(option.Name, out values))
{
return(false);
}
return(values.Any(val => val != null));
}
protected IList <T> GetOptionValues <T>(OptionSpec option)
{
List <T> result = new List <T>();
TypeConverter converter = TypeDescriptor.GetConverter(typeof(T));
IList <string> values;
if (m_optionValues.TryGetValue(option.Name, out values))
{
foreach (string value in values.Where(val => val != null))
{
result.Add((T)converter.ConvertFromInvariantString(value));
}
}
return(result);
}
protected bool HasValue(OptionSpec option)
{
if (option == null)
{
throw new ArgumentNullException(nameof(option), $"{nameof(option)} is null.");
}
IList <string> values;
if (!m_optionValues.TryGetValue(option.Name, out values))
{
return(false);
}
return(values.Any(val => val != null));
}
protected bool HasOption(OptionSpec option)
{
return(m_optionValues.ContainsKey(option.Name));
}