public void Reset()
{
Left.Reset();
Right.Reset();
InnerLookup = default(LookupDefaultEnumerable <TKeyItem, TRightItem>);
NeedsYield = default(GroupingEnumerator <TRightItem>);
CurrentKey = default(TLeftItem);
}
public void Dispose()
{
Left.Dispose();
Right.Dispose();
InnerLookup = default(LookupSpecificEnumerable <TKeyItem, TRightItem>);
NeedsYield = default(GroupingEnumerator <TRightItem>);
CurrentKey = default(TLeftItem);
}
internal JoinDefaultEnumerator(
ref TLeftEnumerator left,
ref TRightEnumerator right,
Func <TLeftItem, TKeyItem> leftKeySelector,
Func <TRightItem, TKeyItem> rightKeySelector,
Func <TLeftItem, TRightItem, TOutItem> resultSelector
)
{
Left = left;
Right = right;
LeftKeySelector = leftKeySelector;
RightKeySelector = rightKeySelector;
ResultSelector = resultSelector;
InnerLookup = default(LookupDefaultEnumerable <TKeyItem, TRightItem>);
Current = default(TOutItem);
NeedsYield = default(GroupingEnumerator <TRightItem>);
CurrentKey = default(TLeftItem);
}
internal JoinSpecificEnumerator(
ref TLeftEnumerator left,
ref TRightEnumerator right,
Func <TLeftItem, TKeyItem> leftKeySelector,
Func <TRightItem, TKeyItem> rightKeySelector,
Func <TLeftItem, TRightItem, TOutItem> resultSelector,
IEqualityComparer <TKeyItem> comparer
)
{
Left = left;
Right = right;
LeftKeySelector = leftKeySelector;
RightKeySelector = rightKeySelector;
ResultSelector = resultSelector;
InnerLookup = default(LookupSpecificEnumerable <TKeyItem, TRightItem>);
Current = default(TOutItem);
NeedsYield = default(GroupingEnumerator <TRightItem>);
CurrentKey = default(TLeftItem);
Comparer = comparer;
}
public bool MoveNext()
{
if (InnerLookup.IsDefaultValue())
{
InnerLookup = CommonImplementation.ToLookupImpl(ref Right, RightKeySelector);
}
continueYielding:
if (!NeedsYield.IsDefaultValue())
{
if (NeedsYield.MoveNext())
{
var rightCur = NeedsYield.Current;
Current = ResultSelector(CurrentKey, rightCur);
return(true);
}
NeedsYield.Dispose();
NeedsYield = default(GroupingEnumerator <TRightItem>);
}
while (Left.MoveNext())
{
var cur = Left.Current;
var curKey = LeftKeySelector(cur);
if (curKey == null)
{
continue;
}
CurrentKey = cur;
NeedsYield = InnerLookup[curKey].GetEnumerator();
goto continueYielding;
}
return(false);
}
internal GroupedEnumerator(ref GroupingEnumerator <TOutItem> inner)
{
Inner = inner;
}
