public static PathStep Create(XPath2Context context, object node)
{
PathStep res = node as PathStep;
if (res != null)
{
return(res);
}
PathExprNode pathExpr = node as PathExprNode;
if (pathExpr != null)
{
return(pathExpr.FirstStep);
}
return(new PathStep(AbstractNode.Create(context, node)));
}
public static PathStep CreateFilter(XPath2Context context, object node, List <Object> predicateList)
{
if (predicateList.Count == 1)
{
AbstractNode predicate = AbstractNode.Create(context, predicateList[0]);
ValueNode numexpr = predicate as ValueNode;
if (numexpr != null && numexpr.Content is Integer)
{
PathStep res = Create(context, node);
res.AddLast(new PathStep(numexpr.Content, XPath2ExprType.PositionFilter));
return(res);
}
}
AbstractNode filterExpr = new FilterExprNode(context, node, predicateList);
return(new PathStep(filterExpr));
}