internal bool Contains(object x, object y)
{
if (!IsReferencePair(x, y))
{
return(false);
}
using (var pair = ReferencePair.GetOrCreate(x, y))
{
return(this.pairs.Contains(pair));
}
}
internal bool?Add(object x, object y)
{
if (!IsReferencePair(x, y))
{
return(null);
}
var refCounted = ReferencePair.GetOrCreate(x, y);
var added = this.pairs.Add(refCounted);
if (!added)
{
refCounted.Dispose();
}
return(added);
}
internal static IRefCounted <TValue> GetOrAdd <TKey, TValue>(
TKey x,
TKey y,
MemberSettings settings,
ConditionalWeakTable <IRefCounted <ReferencePair>, TValue> .CreateValueCallback creator,
out bool created)
where TKey : class
where TValue : class, IDisposable
{
var refCounted = ReferencePair.GetOrCreate(x, y);
var value = GetOrAdd(refCounted, settings, creator, out created);
if (!created)
{
refCounted.Dispose();
}
return(value);
}