public static KnownSetDecoratorDataType Difference(KnownSetDecoratorDataType left, KnownSetDecoratorDataType right) =>
(!left.Decorates.Equals(right.Decorates))
? (new InvalidOperationException(nameof(Difference) + "When subtracting KnownSets they must be of the same value.")).AsValue <KnownSetDecoratorDataType>()
: (left.Include)
? (right.Include)
? new KnownSetDecoratorDataType(true, left.Values.Where(leftValue => !right.ContainsItem(leftValue)), left._decorates)
: new KnownSetDecoratorDataType(true, left.Values.Concat(right.Values).Distinct(), left._decorates)
: (right.Include)
? new KnownSetDecoratorDataType(false, left.Values.Concat(right.Values).Distinct(), left._decorates)
: (new InvalidOperationException(nameof(Difference) + "When subtracting KnownSets they must be of the same value.")).AsValue <KnownSetDecoratorDataType>();
public static KnownSetDecoratorDataType Union(KnownSetDecoratorDataType left, KnownSetDecoratorDataType right)
{
if (!left.Decorates.Equals(right.Decorates))
{
throw new InvalidOperationException(nameof(Union) + "When union KnownSets they must be of the same value.");
}
if (left.Include != right.Include)
{
throw new InvalidOperationException(nameof(Union) + "Must be same inclusion.");
}
return(new KnownSetDecoratorDataType(left.Include, left.Values.Concat(right.Values).Distinct(), left._decorates));
}
