VisitLength()

override QilNode System.Xml.Xsl.IlGen.XmlILOptimizerVisitor.VisitLength ( QilUnary local0 )

inlineprotectedvirtual

Reimplemented from System.Xml.Xsl.Qil.QilVisitor.

Definition at line 570 of file XmlILOptimizerVisitor.cs.

    {
        QilNode qilNode = local0[0];
        if (this[XmlILOptimization.FoldNone] && (object)qilNode.XmlType == XmlQueryTypeFactory.None && AllowReplace(XmlILOptimization.FoldNone, local0))
        {
            return Replace(XmlILOptimization.FoldNone, local0, VisitNop(f.Nop(qilNode)));
        }
        if (this[XmlILOptimization.EliminateLength] && qilNode.NodeType == QilNodeType.Sequence && qilNode.Count == 0 && AllowReplace(XmlILOptimization.EliminateLength, local0))
        {
            return Replace(XmlILOptimization.EliminateLength, local0, VisitLiteralInt32(f.LiteralInt32(0)));
        }
        if (this[XmlILOptimization.EliminateLength] && qilNode.XmlType.IsSingleton && !OptimizerPatterns.Read(qilNode).MatchesPattern(OptimizerPatternName.MaybeSideEffects) && AllowReplace(XmlILOptimization.EliminateLength, local0))
        {
            return Replace(XmlILOptimization.EliminateLength, local0, VisitLiteralInt32(f.LiteralInt32(1)));
        }
        if (this[XmlILOptimization.IntroducePrecedingDod] && !IsDocOrderDistinct(qilNode) && (IsStepPattern(qilNode, QilNodeType.XPathPreceding) || IsStepPattern(qilNode, QilNodeType.PrecedingSibling)) && AllowReplace(XmlILOptimization.IntroducePrecedingDod, local0))
        {
            return Replace(XmlILOptimization.IntroducePrecedingDod, local0, VisitLength(f.Length(VisitDocOrderDistinct(f.DocOrderDistinct(qilNode)))));
        }
        return NoReplace(local0);
    }

References System.Xml.Xsl.IlGen.XmlILOptimizerVisitor.AllowReplace(), System.Collections.Generic.Dictionary< TKey, TValue >.Count, System.Xml.Xsl.Qil.QilFactory.DocOrderDistinct(), System.Xml.Xsl.Qil.QilReplaceVisitor.f, System.Xml.Xsl.IlGen.IsDocOrderDistinct, System.Xml.Xsl.IlGen.XmlILOptimizerVisitor.IsStepPattern(), System.Xml.Xsl.Qil.QilFactory.Length(), System.Xml.Xsl.Qil.QilFactory.LiteralInt32(), System.Xml.Xsl.XmlQueryTypeFactory.None, System.Xml.Xsl.Qil.QilFactory.Nop(), System.Xml.Xsl.IlGen.XmlILOptimizerVisitor.NoReplace(), System.Xml.Xsl.IlGen.OptimizerPatterns.Read(), System.Xml.Replace, System.Xml.Xsl.IlGen.XmlILOptimizerVisitor.VisitDocOrderDistinct(), System.Xml.Xsl.IlGen.XmlILOptimizerVisitor.VisitLength(), System.Xml.Xsl.Qil.QilPatternVisitor.VisitLiteralInt32(), and System.Xml.Xsl.IlGen.XmlILOptimizerVisitor.VisitNop().

Referenced by System.Xml.Xsl.IlGen.XmlILOptimizerVisitor.VisitLength().