/// <summary>
/// Check if the value of <paramref name="reason"/> is a defined value of the
/// <see cref="EarlyReleaseReason"/> enum.
/// </summary>
/// <param name="reason">the value to check</param>
/// <returns>the value</returns>
/// <exception cref="ArgumentOutOfRangeException">Thrown if <paramref name="reason"/> is
/// not a defined value of the <see cref="EarlyReleaseReason"/> enum.</exception>
public static EarlyReleaseReason ValueOrThrowIfNDef(this EarlyReleaseReason reason) =>
TheDefinedReasons.Contains(reason)
? reason
: throw new ArgumentOutOfRangeException(nameof(reason), reason,
@$ "The supplied reason {reason.ToString()} is not " +
@$ "a defined value in the {typeof(EarlyReleaseReason).Name} enum.");
/// <summary> /// Check if a value is a defined value in the <see cref="EarlyReleaseReason"/> /// enum. /// </summary> /// <param name="reason">the reason to check</param> /// <returns>True only if <paramref name="reason"/> is a defined value of the <see cref="EarlyReleaseReason"/> /// enumeration.</returns> public static bool IsDefined(this EarlyReleaseReason reason) => TheDefinedReasons.Contains(reason);
/// <summary> /// Return the value of <paramref name="reason"/> if it is a defined value of the /// <see cref="EarlyReleaseReason"/> enum; otherwise return null /// </summary> /// <param name="reason"></param> /// <returns> the value of <paramref name="reason"/> if it is a defined value of the /// <see cref="EarlyReleaseReason"/> enum; otherwise return null</returns> public static EarlyReleaseReason?ValueOrDefaultIfNDef(this EarlyReleaseReason reason) => TheDefinedReasons.Contains(reason) ? (EarlyReleaseReason?)reason : null;
