/// <summary>
/// Get OptimizerPatterns annotation for the specified node. Lazily create if necessary.
/// </summary>
public static OptimizerPatterns Read(QilNode nd)
{
XmlILAnnotation ann = nd.Annotation as XmlILAnnotation;
OptimizerPatterns optPatt = (ann != null) ? ann.Patterns : null;
if (optPatt == null)
{
if (!nd.XmlType.MaybeMany)
{
// Expressions with ZeroOrOne cardinality should always report IsDocOrderDistinct and NoContainedNodes
if (s_zeroOrOneDefault == null)
{
optPatt = new OptimizerPatterns();
optPatt.AddPattern(OptimizerPatternName.IsDocOrderDistinct);
optPatt.AddPattern(OptimizerPatternName.SameDepth);
optPatt._isReadOnly = true;
s_zeroOrOneDefault = optPatt;
}
else
{
optPatt = s_zeroOrOneDefault;
}
}
else if (nd.XmlType.IsDod)
{
if (s_dodDefault == null)
{
optPatt = new OptimizerPatterns();
optPatt.AddPattern(OptimizerPatternName.IsDocOrderDistinct);
optPatt._isReadOnly = true;
s_dodDefault = optPatt;
}
else
{
optPatt = s_dodDefault;
}
}
else
{
if (s_maybeManyDefault == null)
{
optPatt = new OptimizerPatterns();
optPatt._isReadOnly = true;
s_maybeManyDefault = optPatt;
}
else
{
optPatt = s_maybeManyDefault;
}
}
}
return(optPatt);
}
//-----------------------------------------------
// Constructor
//-----------------------------------------------
/// <summary>
/// Create and initialize XmlILAnnotation for the specified node.
/// </summary>
public static XmlILAnnotation Write(QilNode nd)
{
XmlILAnnotation ann = nd.Annotation as XmlILAnnotation;
if (ann == null)
{
ann = new XmlILAnnotation(nd.Annotation);
nd.Annotation = ann;
}
return(ann);
}
/// <summary>
/// Create and initialize XmlILConstructInfo annotation for the specified node.
/// </summary>
public static XmlILConstructInfo Write(QilNode nd)
{
XmlILAnnotation ann = XmlILAnnotation.Write(nd);
XmlILConstructInfo constrInfo = ann.ConstructInfo;
if (constrInfo == null || constrInfo._isReadOnly)
{
constrInfo = new XmlILConstructInfo(nd.NodeType);
ann.ConstructInfo = constrInfo;
}
return(constrInfo);
}
/// <summary>
/// Get ConstructInfo annotation for the specified node. Lazily create if necessary.
/// </summary>
public static XmlILConstructInfo Read(QilNode nd)
{
XmlILAnnotation ann = nd.Annotation as XmlILAnnotation;
XmlILConstructInfo constrInfo = (ann != null) ? ann.ConstructInfo : null;
if (constrInfo == null)
{
if (s_default == null)
{
constrInfo = new XmlILConstructInfo(QilNodeType.Unknown);
constrInfo._isReadOnly = true;
s_default = constrInfo;
}
else
{
constrInfo = s_default;
}
}
return(constrInfo);
}
/// <summary>
/// Create and initialize OptimizerPatterns annotation for the specified node.
/// </summary>
public static OptimizerPatterns Write(QilNode nd)
{
XmlILAnnotation ann = XmlILAnnotation.Write(nd);
OptimizerPatterns optPatt = ann.Patterns;
if (optPatt == null || optPatt._isReadOnly)
{
optPatt = new OptimizerPatterns();
ann.Patterns = optPatt;
if (!nd.XmlType.MaybeMany)
{
optPatt.AddPattern(OptimizerPatternName.IsDocOrderDistinct);
optPatt.AddPattern(OptimizerPatternName.SameDepth);
}
else if (nd.XmlType.IsDod)
{
optPatt.AddPattern(OptimizerPatternName.IsDocOrderDistinct);
}
}
return(optPatt);
}
