internal override bool MoveNext(ref TInputOutput currentElement, ref int currentKey)
{
if (this.m_hashLookup == null)
{
this.m_outputLoopCount = new Shared <int>(0);
this.m_hashLookup = new System.Linq.Parallel.Set <TInputOutput>(this.m_comparer);
Pair <TInputOutput, NoKeyMemoizationRequired> pair = new Pair <TInputOutput, NoKeyMemoizationRequired>();
int num = 0;
int num2 = 0;
while (this.m_rightSource.MoveNext(ref pair, ref num))
{
if ((num2++ & 0x3f) == 0)
{
CancellationState.ThrowIfCanceled(this.m_cancellationToken);
}
this.m_hashLookup.Add(pair.First);
}
}
Pair <TInputOutput, NoKeyMemoizationRequired> pair2 = new Pair <TInputOutput, NoKeyMemoizationRequired>();
TLeftKey local = default(TLeftKey);
while (this.m_leftSource.MoveNext(ref pair2, ref local))
{
if ((this.m_outputLoopCount.Value++ & 0x3f) == 0)
{
CancellationState.ThrowIfCanceled(this.m_cancellationToken);
}
if (this.m_hashLookup.Add(pair2.First))
{
currentElement = pair2.First;
return(true);
}
}
return(false);
}
internal override bool MoveNext(ref TInputOutput currentElement, ref TLeftKey currentKey)
{
if (this.m_outputEnumerator == null)
{
System.Linq.Parallel.Set <TInputOutput> set = new System.Linq.Parallel.Set <TInputOutput>(this.m_comparer);
Pair <TInputOutput, NoKeyMemoizationRequired> pair = new Pair <TInputOutput, NoKeyMemoizationRequired>();
int num = 0;
int num2 = 0;
while (this.m_rightSource.MoveNext(ref pair, ref num))
{
if ((num2++ & 0x3f) == 0)
{
CancellationState.ThrowIfCanceled(this.m_cancellationToken);
}
set.Add(pair.First);
}
Dictionary <Wrapper <TInputOutput>, Pair <TInputOutput, TLeftKey> > dictionary = new Dictionary <Wrapper <TInputOutput>, Pair <TInputOutput, TLeftKey> >(new WrapperEqualityComparer <TInputOutput>(this.m_comparer));
Pair <TInputOutput, NoKeyMemoizationRequired> pair2 = new Pair <TInputOutput, NoKeyMemoizationRequired>();
TLeftKey local = default(TLeftKey);
while (this.m_leftSource.MoveNext(ref pair2, ref local))
{
if ((num2++ & 0x3f) == 0)
{
CancellationState.ThrowIfCanceled(this.m_cancellationToken);
}
if (!set.Contains(pair2.First))
{
Pair <TInputOutput, TLeftKey> pair3;
Wrapper <TInputOutput> key = new Wrapper <TInputOutput>(pair2.First);
if (!dictionary.TryGetValue(key, out pair3) || (this.m_leftKeyComparer.Compare(local, pair3.Second) < 0))
{
dictionary[key] = new Pair <TInputOutput, TLeftKey>(pair2.First, local);
}
}
}
this.m_outputEnumerator = dictionary.GetEnumerator();
}
if (this.m_outputEnumerator.MoveNext())
{
Pair <TInputOutput, TLeftKey> pair4 = this.m_outputEnumerator.Current.Value;
currentElement = pair4.First;
currentKey = pair4.Second;
return(true);
}
return(false);
}
internal DistinctQueryOperatorEnumerator(QueryOperatorEnumerator <Pair <TInputOutput, NoKeyMemoizationRequired>, TKey> source, IEqualityComparer <TInputOutput> comparer, CancellationToken cancellationToken)
{
this.m_source = source;
this.m_hashLookup = new System.Linq.Parallel.Set <TInputOutput>(comparer);
this.m_cancellationToken = cancellationToken;
}