internal override CellTreeNode VisitOpNode(OpCellTreeNode node, bool dummy)
{
var flattenedChildren = new List <CellTreeNode>();
// Flatten the children first
foreach (var child in node.Children)
{
var flattenedChild = child.Accept(this, dummy);
flattenedChildren.Add(flattenedChild);
}
Debug.Assert(flattenedChildren.Count > 1, "node must have more than 1 child and be an OpCellTreeNode");
// If this op is associative and a child's OP is the same as this
// op, add those to be this nodes children
var finalChildren = flattenedChildren;
if (IsAssociativeOp(node.OpType))
{
finalChildren = new List <CellTreeNode>();
foreach (var child in flattenedChildren)
{
if (child.OpType
== node.OpType)
{
finalChildren.AddRange(child.Children);
}
else
{
finalChildren.Add(child);
}
}
}
var result = new OpCellTreeNode(node.ViewgenContext, node.OpType, finalChildren);
return(result);
}
internal override CellTreeNode VisitLeftAntiSemiJoin(OpCellTreeNode node, TInput param)
{
return(AcceptChildren(node, param));
}
internal override CellTreeNode VisitFullOuterJoin(OpCellTreeNode node, TInput param)
{
return(AcceptChildren(node, param));
}
internal abstract TOutput VisitOpNode(OpCellTreeNode node, TInput param);
internal abstract TOutput VisitLeftAntiSemiJoin(OpCellTreeNode node, TInput param);
internal abstract TOutput VisitFullOuterJoin(OpCellTreeNode node, TInput param);
internal override CellTreeNode VisitLeftOuterJoin(
OpCellTreeNode node,
TInput param)
{
return((CellTreeNode)this.AcceptChildren(node, param));
}
private CqlBlock UnionToCqlBlock(
bool[] requiredSlots,
CqlIdentifiers identifiers,
ref int blockAliasNum,
ref List <WithRelationship> withRelationships)
{
List <CqlBlock> children = new List <CqlBlock>();
List <Tuple <CqlBlock, SlotInfo> > tupleList = new List <Tuple <CqlBlock, SlotInfo> >();
int length1 = requiredSlots.Length;
foreach (CellTreeNode child in this.Children)
{
bool[] projectedSlots = child.GetProjectedSlots();
OpCellTreeNode.AndWith(projectedSlots, requiredSlots);
CqlBlock cqlBlock = child.ToCqlBlock(projectedSlots, identifiers, ref blockAliasNum, ref withRelationships);
for (int length2 = projectedSlots.Length; length2 < cqlBlock.Slots.Count; ++length2)
{
tupleList.Add(Tuple.Create <CqlBlock, SlotInfo>(cqlBlock, cqlBlock.Slots[length2]));
}
SlotInfo[] slotInfoArray = new SlotInfo[cqlBlock.Slots.Count];
for (int slotNum = 0; slotNum < length1; ++slotNum)
{
if (requiredSlots[slotNum] && !projectedSlots[slotNum])
{
if (this.IsBoolSlot(slotNum))
{
slotInfoArray[slotNum] = new SlotInfo(true, true, (ProjectedSlot) new BooleanProjectedSlot(BoolExpression.False, identifiers, this.SlotToBoolIndex(slotNum)), (MemberPath)null);
}
else
{
MemberPath outputMember = cqlBlock.MemberPath(slotNum);
slotInfoArray[slotNum] = new SlotInfo(true, true, (ProjectedSlot) new ConstantProjectedSlot(Constant.Null), outputMember);
}
}
else
{
slotInfoArray[slotNum] = cqlBlock.Slots[slotNum];
}
}
cqlBlock.Slots = new ReadOnlyCollection <SlotInfo>((IList <SlotInfo>)slotInfoArray);
children.Add(cqlBlock);
}
if (tupleList.Count != 0)
{
foreach (CqlBlock cqlBlock in children)
{
SlotInfo[] array = new SlotInfo[length1 + tupleList.Count];
cqlBlock.Slots.CopyTo(array, 0);
int index = length1;
foreach (Tuple <CqlBlock, SlotInfo> tuple in tupleList)
{
SlotInfo slotInfo = tuple.Item2;
array[index] = !tuple.Item1.Equals((object)cqlBlock) ? new SlotInfo(true, true, (ProjectedSlot) new ConstantProjectedSlot(Constant.Null), slotInfo.OutputMember) : new SlotInfo(true, true, slotInfo.SlotValue, slotInfo.OutputMember);
++index;
}
cqlBlock.Slots = new ReadOnlyCollection <SlotInfo>((IList <SlotInfo>)array);
}
}
SlotInfo[] slotInfos = new SlotInfo[length1 + tupleList.Count];
CqlBlock cqlBlock1 = children[0];
for (int index = 0; index < length1; ++index)
{
SlotInfo slot = cqlBlock1.Slots[index];
bool requiredSlot = requiredSlots[index];
slotInfos[index] = new SlotInfo(requiredSlot, requiredSlot, slot.SlotValue, slot.OutputMember);
}
for (int index = length1; index < length1 + tupleList.Count; ++index)
{
SlotInfo slot = cqlBlock1.Slots[index];
slotInfos[index] = new SlotInfo(true, true, slot.SlotValue, slot.OutputMember);
}
return((CqlBlock) new UnionCqlBlock(slotInfos, children, identifiers, ++blockAliasNum));
}
