QilReplaceVisitor.cs

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namespace System.Xml.Xsl.Qil;
 
internal abstract class QilReplaceVisitor : QilVisitor
{
    protected QilFactory f;
 
    public QilReplaceVisitor(QilFactory f)
    {
        this.f = f;
    }
 
    protected override QilNode VisitChildren(QilNode parent)
    {
        XmlQueryType xmlType = parent.XmlType;
        bool flag = false;
        for (int i = 0; i < parent.Count; i++)
        {
            QilNode qilNode = parent[i];
            XmlQueryType xmlQueryType = qilNode?.XmlType;
            QilNode qilNode2 = ((!IsReference(parent, i)) ? Visit(qilNode) : VisitReference(qilNode));
            if (qilNode != qilNode2 || (qilNode2 != null && (object)xmlQueryType != qilNode2.XmlType))
            {
                flag = true;
                parent[i] = qilNode2;
            }
        }
        if (flag)
        {
            RecalculateType(parent, xmlType);
        }
        return parent;
    }
 
    protected virtual void RecalculateType(QilNode node, XmlQueryType oldType)
    {
        XmlQueryType xmlType = f.TypeChecker.Check(node);
        node.XmlType = xmlType;
    }
}