// <summary>
// Copies a ProjectOp
// </summary>
// <param name="op"> The Op to Copy </param>
// <param name="n"> The Node that references the Op </param>
// <returns> A copy of the original Node that references a copy of the original Op </returns>
public override Node Visit(ProjectOp op, Node n)
{
// Visit the Node's children and map their Vars
var children = ProcessChildren(n);
// Copy the ProjectOp's VarSet
var newVarSet = Copy(op.Outputs);
// Create a new ProjectOp based on the copied VarSet
var newProject = m_destCmd.CreateProjectOp(newVarSet);
// Return a new Node that references the copied ProjectOp and has the copied child Nodes as its children
return(m_destCmd.CreateNode(newProject, children));
}
public override void Visit(ProjectOp op, Node n)
{
using (new Dump.AutoXml(this, (Op)op))
{
using (new Dump.AutoXml(this, "outputs"))
{
foreach (Var output in op.Outputs)
{
this.DumpVar(output);
}
}
this.VisitChildren(n);
}
}
public override void Visit(ProjectOp op, Node n)
{
using (new AutoXml(this, op))
{
using (new AutoXml(this, "outputs"))
{
foreach (var v in op.Outputs)
{
DumpVar(v);
}
}
VisitChildren(n);
}
}
public override NodeInfo Visit(ProjectOp op, Node n)
{
ExtendedNodeInfo extendedNodeInfo1 = this.InitExtendedNodeInfo(n);
ExtendedNodeInfo extendedNodeInfo2 = this.GetExtendedNodeInfo(n.Child0);
foreach (Var output in op.Outputs)
{
if (extendedNodeInfo2.Definitions.IsSet(output))
{
extendedNodeInfo1.Definitions.Set(output);
}
else
{
extendedNodeInfo1.ExternalReferences.Set(output);
}
}
extendedNodeInfo1.NonNullableDefinitions.InitFrom(extendedNodeInfo2.NonNullableDefinitions);
extendedNodeInfo1.NonNullableDefinitions.And(op.Outputs);
extendedNodeInfo1.NonNullableVisibleDefinitions.InitFrom(extendedNodeInfo2.NonNullableDefinitions);
foreach (Node child in n.Child1.Children)
{
VarDefOp op1 = child.Op as VarDefOp;
NodeInfo nodeInfo = this.GetNodeInfo(child.Child0);
extendedNodeInfo1.LocalDefinitions.Set(op1.Var);
extendedNodeInfo1.ExternalReferences.Clear(op1.Var);
extendedNodeInfo1.Definitions.Set(op1.Var);
extendedNodeInfo1.ExternalReferences.Or(nodeInfo.ExternalReferences);
if (NodeInfoVisitor.IsDefinitionNonNullable(child.Child0, extendedNodeInfo1.NonNullableVisibleDefinitions))
{
extendedNodeInfo1.NonNullableDefinitions.Set(op1.Var);
}
}
extendedNodeInfo1.ExternalReferences.Minus(extendedNodeInfo2.Definitions);
extendedNodeInfo1.ExternalReferences.Or(extendedNodeInfo2.ExternalReferences);
extendedNodeInfo1.Keys.NoKeys = true;
if (!extendedNodeInfo2.Keys.NoKeys)
{
VarVec varVec1 = this.m_command.CreateVarVec(extendedNodeInfo2.Keys.KeyVars).Remap(NodeInfoVisitor.ComputeVarRemappings(n.Child1));
VarVec varVec2 = varVec1.Clone();
VarVec varVec3 = this.m_command.CreateVarVec(op.Outputs);
varVec1.Minus(varVec3);
if (varVec1.IsEmpty)
{
extendedNodeInfo1.Keys.InitFrom((IEnumerable <Var>)varVec2);
}
}
extendedNodeInfo1.InitRowCountFrom(extendedNodeInfo2);
return((NodeInfo)extendedNodeInfo1);
}
/// <summary>
/// Computes a NodeInfo for a ProjectOp.
/// Definitions = the Vars property of this Op
/// LocalDefinitions = list of computed Vars produced by this node
/// Keys = Keys of the input Relop (if they are all preserved)
/// External References = any external references from the computed Vars
/// RowCount = Input's RowCount
/// NonNullabeDefinitions = Outputs that are either among the NonNullableDefinitions of the child or
/// are constants defined on this node
/// NonNullableInputDefinitions = NonNullableDefinitions of the child
/// </summary>
/// <param name="op"> The ProjectOp </param>
/// <param name="n"> corresponding Node </param>
public override NodeInfo Visit(ProjectOp op, Node n)
{
var nodeInfo = InitExtendedNodeInfo(n);
// Walk through my outputs and identify my "real" definitions
var relOpChildNodeInfo = GetExtendedNodeInfo(n.Child0);
// In the first pass, only definitions of the child are considered
// to be definitions - everything else is an external reference
foreach (var v in op.Outputs)
{
if (relOpChildNodeInfo.Definitions.IsSet(v))
{
nodeInfo.Definitions.Set(v);
}
else
{
nodeInfo.ExternalReferences.Set(v);
}
}
//Nonnullable definitions
nodeInfo.NonNullableDefinitions.InitFrom(relOpChildNodeInfo.NonNullableDefinitions);
nodeInfo.NonNullableDefinitions.And(op.Outputs);
nodeInfo.NonNullableVisibleDefinitions.InitFrom(relOpChildNodeInfo.NonNullableDefinitions);
// Local definitions
foreach (var chi in n.Child1.Children)
{
var varDefOp = chi.Op as VarDefOp;
var chiNodeInfo = GetNodeInfo(chi.Child0);
nodeInfo.LocalDefinitions.Set(varDefOp.Var);
nodeInfo.ExternalReferences.Clear(varDefOp.Var);
nodeInfo.Definitions.Set(varDefOp.Var);
nodeInfo.ExternalReferences.Or(chiNodeInfo.ExternalReferences);
if (IsDefinitionNonNullable(chi.Child0, nodeInfo.NonNullableVisibleDefinitions))
{
nodeInfo.NonNullableDefinitions.Set(varDefOp.Var);
}
}
nodeInfo.ExternalReferences.Minus(relOpChildNodeInfo.Definitions);
nodeInfo.ExternalReferences.Or(relOpChildNodeInfo.ExternalReferences);
// Get the set of keys - simply the list of my child's keys, unless
// they're not all defined
nodeInfo.Keys.NoKeys = true;
if (!relOpChildNodeInfo.Keys.NoKeys)
{
// Check to see if any of my child's keys have been left by the wayside
// in that case, mark this node as having no keys
var keyVec = m_command.CreateVarVec(relOpChildNodeInfo.Keys.KeyVars);
var varRenameMap = ComputeVarRemappings(n.Child1);
var mappedKeyVec = keyVec.Remap(varRenameMap);
var mappedKeyVecClone = mappedKeyVec.Clone();
var opVars = m_command.CreateVarVec(op.Outputs);
mappedKeyVec.Minus(opVars);
if (mappedKeyVec.IsEmpty)
{
nodeInfo.Keys.InitFrom(mappedKeyVecClone);
}
}
nodeInfo.InitRowCountFrom(relOpChildNodeInfo);
return(nodeInfo);
}
public override Node Visit(ProjectOp op, Node n)
{
List <Node> args = this.ProcessChildren(n);
return(this.m_destCmd.CreateNode((Op)this.m_destCmd.CreateProjectOp(this.Copy(op.Outputs)), args));
}
public virtual void Visit(ProjectOp op, Node n)
{
this.VisitRelOpDefault((RelOp)op, n);
}
public override void Visit(ProjectOp op, Node n)
{
VisitRelOpDefault(op, n);
AssertRelOpOrPhysicalOp(n.Child0.Op);
AssertOpType(n.Child1.Op, OpType.VarDefList);
}
/// <summary>
/// Visitor pattern method for ProjectOp
/// </summary>
/// <param name="op"> The ProjectOp being visited </param>
/// <param name="n"> The Node that references the Op </param>
public virtual void Visit(ProjectOp op, Node n)
{
VisitRelOpDefault(op, n);
}
// <summary>
// ProjectOp
// </summary>
public virtual TResultType Visit(ProjectOp op, Node n)
{
return(VisitRelOpDefault(op, n));
}