VisitTypeAssert()

override QilNode System.Xml.Xsl.IlGen.XmlILOptimizerVisitor.VisitTypeAssert ( QilTargetType local0 )

inlineprotectedvirtual

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

Definition at line 2553 of file XmlILOptimizerVisitor.cs.

    {
        QilNode qilNode = local0[0];
        QilNode qilNode2 = local0[1];
        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.EliminateTypeAssert] && qilNode2.NodeType == QilNodeType.LiteralType)
        {
            XmlQueryType baseType = (XmlQueryType)((QilLiteral)qilNode2).Value;
            if (qilNode.XmlType.NeverSubtypeOf(baseType) && AllowReplace(XmlILOptimization.EliminateTypeAssert, local0))
            {
                return Replace(XmlILOptimization.EliminateTypeAssert, local0, VisitError(f.Error(VisitLiteralString(f.LiteralString(string.Empty)))));
            }
        }
        if (this[XmlILOptimization.EliminateTypeAssert] && qilNode2.NodeType == QilNodeType.LiteralType)
        {
            XmlQueryType xmlQueryType = (XmlQueryType)((QilLiteral)qilNode2).Value;
            if (qilNode.XmlType.Prime.NeverSubtypeOf(xmlQueryType.Prime) && AllowReplace(XmlILOptimization.EliminateTypeAssert, local0))
            {
                return Replace(XmlILOptimization.EliminateTypeAssert, local0, VisitConditional(f.Conditional(VisitIsEmpty(f.IsEmpty(qilNode)), VisitSequence(f.Sequence()), VisitError(f.Error(VisitLiteralString(f.LiteralString(string.Empty)))))));
            }
        }
        if (this[XmlILOptimization.EliminateTypeAssertOptional] && qilNode2.NodeType == QilNodeType.LiteralType)
        {
            XmlQueryType baseType2 = (XmlQueryType)((QilLiteral)qilNode2).Value;
            if (qilNode.XmlType.IsSubtypeOf(baseType2) && AllowReplace(XmlILOptimization.EliminateTypeAssertOptional, local0))
            {
                return Replace(XmlILOptimization.EliminateTypeAssertOptional, local0, qilNode);
            }
        }
        return NoReplace(local0);
    }

References System.Xml.Xsl.IlGen.XmlILOptimizerVisitor.AllowReplace(), System.Xml.Xsl.Qil.QilFactory.Conditional(), System.Xml.Dictionary, System.Xml.Xsl.Qil.QilFactory.Error(), System.Xml.Xsl.Qil.QilReplaceVisitor.f, System.Xml.Xsl.Qil.QilFactory.IsEmpty(), System.Xml.Xsl.Qil.QilFactory.LiteralString(), System.Xml.Xsl.XmlQueryTypeFactory.None, System.Xml.Xsl.Qil.QilFactory.Nop(), System.Xml.Xsl.IlGen.XmlILOptimizerVisitor.NoReplace(), System.Xml.Replace, System.Xml.Xsl.Qil.QilFactory.Sequence(), System.Xml.Xsl.IlGen.XmlILOptimizerVisitor.VisitConditional(), System.Xml.Xsl.IlGen.XmlILOptimizerVisitor.VisitError(), System.Xml.Xsl.IlGen.XmlILOptimizerVisitor.VisitIsEmpty(), System.Xml.Xsl.Qil.QilPatternVisitor.VisitLiteralString(), System.Xml.Xsl.IlGen.XmlILOptimizerVisitor.VisitNop(), and System.Xml.Xsl.IlGen.XmlILOptimizerVisitor.VisitSequence().