| public AddPattern ( OptimizerPatternName pattern ) : void | ||
| pattern | OptimizerPatternName | |
| return | void | |
/// <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);
}
/// <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;
}
/// <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);
}
/// <summary>
/// Create and initialize OptimizerPatterns annotation for the specified node.
/// </summary>
public static void Inherit(QilNode ndSrc, QilNode ndDst, OptimizerPatternName pattern)
{
OptimizerPatterns annSrc = OptimizerPatterns.Read(ndSrc);
if (annSrc.MatchesPattern(pattern))
{
OptimizerPatterns annDst = OptimizerPatterns.Write(ndDst);
annDst.AddPattern(pattern);
// Inherit pattern arguments
switch (pattern)
{
case OptimizerPatternName.Step:
annDst.AddArgument(OptimizerPatternArgument.StepNode, annSrc.GetArgument(OptimizerPatternArgument.StepNode));
annDst.AddArgument(OptimizerPatternArgument.StepInput, annSrc.GetArgument(OptimizerPatternArgument.StepInput));
break;
case OptimizerPatternName.FilterElements:
annDst.AddArgument(OptimizerPatternArgument.ElementQName, annSrc.GetArgument(OptimizerPatternArgument.ElementQName));
break;
case OptimizerPatternName.FilterContentKind:
annDst.AddArgument(OptimizerPatternArgument.KindTestType, annSrc.GetArgument(OptimizerPatternArgument.KindTestType));
break;
case OptimizerPatternName.EqualityIndex:
annDst.AddArgument(OptimizerPatternArgument.IndexedNodes, annSrc.GetArgument(OptimizerPatternArgument.IndexedNodes));
annDst.AddArgument(OptimizerPatternArgument.KeyExpression, annSrc.GetArgument(OptimizerPatternArgument.KeyExpression));
break;
case OptimizerPatternName.DodReverse:
case OptimizerPatternName.JoinAndDod:
annDst.AddArgument(OptimizerPatternArgument.DodStep, annSrc.GetArgument(OptimizerPatternArgument.DodStep));
break;
case OptimizerPatternName.MaxPosition:
annDst.AddArgument(OptimizerPatternArgument.MaxPosition, annSrc.GetArgument(OptimizerPatternArgument.MaxPosition));
break;
case OptimizerPatternName.SingleTextRtf:
annDst.AddArgument(OptimizerPatternArgument.RtfText, annSrc.GetArgument(OptimizerPatternArgument.RtfText));
break;
}
}
}
/// <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;
}