/// <summary>
/// Sammelt die Namen der in <paramref name="propertyClassType"/> gesetzten Flags in
/// <paramref name="list"/>. <paramref name="list"/> wird von der Methode nicht
/// geleert.
/// </summary>
/// <param name="propertyClassType"><see cref="PropertyClassTypes"/>-Objekt oder <c>null</c>.</param>
/// <param name="list">Eine Liste zum sammeln.</param>
internal static void CollectValueStrings(PropertyClassTypes?propertyClassType, List <string> list)
{
Debug.Assert(list != null);
if (!propertyClassType.HasValue)
{
return;
}
PropertyClassTypes value = propertyClassType.Value;
if (value.HasFlag(PropertyClassTypes.Home))
{
list.Add(ParameterSection.TypeValue.HOME);
}
if (value.HasFlag(PropertyClassTypes.Work))
{
list.Add(ParameterSection.TypeValue.WORK);
}
}
public static bool IsSet(this PropertyClassTypes?value, PropertyClassTypes flags) => (value & flags) == flags;
public static PropertyClassTypes?Unset(this PropertyClassTypes?value, PropertyClassTypes flags)
{
value &= ~flags;
return(value == (PropertyClassTypes)0 ? null : value);
}
public static PropertyClassTypes?Set(this PropertyClassTypes?value, PropertyClassTypes flags)
{
// Check inlining:
// Trace.WriteLine(System.Reflection.MethodBase.GetCurrentMethod().Name);
return(value.HasValue ? (value.Value | flags) : flags);
}
