public bool TryGetValue(TKey key, out TValue value)
{
object oldValObj = _table.TryGetValue(key);
Debug.Assert(!(oldValObj is Prime));
if (oldValObj != null)
{
// PERF: this would be nice to have as a helper,
// but it does not get inlined
if (default(TValue) == null && oldValObj == NULLVALUE)
{
value = default(TValue);
}
else
{
value = (TValue)oldValObj;
}
return(true);
}
value = default(TValue);
return(false);
}
public bool MoveNext()
{
if (_nextV == NULLVALUE)
{
return(false);
}
_curKey = _nextK;
_curValue = _nextV;
_nextV = NULLVALUE;
var entries = _table._entries;
while (_idx < entries.Length)
{ // Scan array
var nextEntry = entries[_idx++];
if (nextEntry.value != null)
{
var nextK = _table.keyFromEntry(nextEntry.key);
object nextV = _table.TryGetValue(nextK);
if (nextV != null)
{
_nextK = nextK;
// PERF: this would be nice to have as a helper,
// but it does not get inlined
if (default(TValue) == null && nextV == NULLVALUE)
{
_nextV = default(TValue);
}
else
{
_nextV = (TValue)nextV;
}
break;
}
}
}
return(_curValue != NULLVALUE);
}