protected override bool FromInternalKeyToStackKey(Trashable internalKey, out KeyValuePair <int, int> externalKey)
{
Tuple <int, int> itm;
bool res = FromInternalKeyToExternalKey(internalKey, out itm);
externalKey = new KeyValuePair <int, int>(itm.Item1, itm.Item2);
return(res);
}
protected override Trashable FromExternalKeyToStorageKey(Tuple <int, int> externalKey)
{
Trashable res;
if (!Keys.TryGetValue(externalKey, out res))
{
Keys[externalKey] = res = new Trashable {
Value = externalKey.Item1
}
}
;
return(res);
}
protected override bool FromInternalKeyToExternalKey(Trashable internalKey, out Tuple <int, int> externalKey)
{
externalKey = System.Linq.Enumerable.First(Keys, kvp => object.ReferenceEquals(kvp.Value, internalKey)).Key;
return(!internalKey.IsGarbage);
}
