protected MatchEnum(MatchEnum copy)
: base(copy)
{
Ordinal = copy.Ordinal;
Ordinal2 = copy.Ordinal2;
Values = copy.Values;
}
public bool Subsets(Match match)
{
if (Priority != match.Priority)
{
return(false);
}
MatchEnum that = match as MatchEnum;
return(Ordinal >= that.Ordinal && Ordinal2 <= that.Ordinal2);
}
// Overriden due to more restrictive conditions.
public override bool CanMerge(Match match)
{
if (!base.CanMerge(match))
{
return(false);
}
MatchEnum that = match as MatchEnum;
// This match subsets, is subsetted by, or complements match.
return(Subsets(that) || that.Subsets(this) || Complements(that));
}
public bool Complements(Match match)
{
// The different priorities cannot complement each other (e.g. "Quality" cannot complement "ItemLevel" and vice versa).
if (Priority != match.Priority)
{
return(false);
}
MatchEnum that = match as MatchEnum;
// Complements from left or right.
// XXX: Don't have to take operator into account at all, due to conversion of all operators into Between ranges in constructor.
return(Ordinal2 + 1 == that.Ordinal || Ordinal == that.Ordinal2 + 1);
}
public void Merge(Match match)
{
MatchEnum that = match as MatchEnum;
if (Complements(that))
{
// Complements from left.
if (Ordinal2 + 1 == that.Ordinal)
{
Ordinal2 = that.Ordinal2;
}
else // Ordinal == that.Ordinal2 + 1
{
Ordinal = that.Ordinal;
}
}
else // If we subset the match.
if (Subsets(that))
{
Ordinal = that.Ordinal;
Ordinal2 = that.Ordinal2;
} // Otherwise match subsets us, nothing to do.
}