/// <summary>
/// Get translated free values and try to cast them to specified type.
/// </summary>
/// <typeparam name="T">The destination type that you want each value to cast to.</typeparam>
/// <param name="result">The argument parsing result.</param>
/// <param name="name">The name of the free value.</param>
/// <returns>The translated free values.</returns>
/// <exception cref="ArgumentNullException">
/// <para>The <paramref name="result"/> is <c>null</c>.</para>
/// <para>-- Or --</para>
/// <para>The <paramref name="name"/> is <c>null</c>.</para>
/// </exception>
/// <exception cref="ArgumentException">
/// The <paramref name="name"/> specified is not defined.
/// </exception>
/// <exception cref="InvalidOperationException">
/// The <paramref name="result"/> is not a successful one.
/// </exception>
public static IList <T> GetFreeValue <T>(this ArgsParsingResult result, string name)
{
if (result == null)
{
throw new ArgumentNullException(nameof(result));
}
IList <object> values = result.GetFreeValue(name);
return(values.Cast <T>().ToArray());
}
/// <summary>
/// Get first translated option value in the option list. And try to cast it to specified
/// type.
/// </summary>
/// <typeparam name="T">The destination type that you want the value to cast to.</typeparam>
/// <param name="result">The argument parsing result.</param>
/// <param name="option">The full form or the abbreviation form of the option.</param>
/// <returns>The first value to the option.</returns>
/// <exception cref="ArgumentNullException">
/// <para>The <paramref name="result"/> is <c>null</c>.</para>
/// <para>-- Or --</para>
/// <para>The <paramref name="option"/> is <c>null</c>.</para>
/// </exception>
/// <exception cref="ArgumentException">
/// The <paramref name="option"/> specified is not defined.
/// </exception>
/// <exception cref="InvalidOperationException">
/// <para>The <paramref name="result"/> is not a successful one.</para>
/// <para>-- Or --</para>
/// <para>There is no value for specified <paramref name="option"/>.</para>
/// </exception>
public static T GetFirstOptionValue <T>(this ArgsParsingResult result, string option)
{
if (result == null)
{
throw new ArgumentNullException(nameof(result));
}
IList <object> values = result.GetOptionValue(option);
return((T)values.First());
}
