/// <summary>
/// Validate a forward step.
/// </summary>
/// <param name="e">
/// is the expression. </param>
/// <returns> null. </returns>
public virtual object visit(ForwardStep e)
{
e.node_test().accept(this);
_axes.Add(e.iterator().name());
return(null);
}
/// <param name="e">
/// is the forward step. </param>
/// <returns> e </returns>
// XXX: normalzie!
public virtual object visit(ForwardStep e)
{
var axis = e.axis();
switch (axis)
{
case ForwardStep.Type.AT_SYM:
e.set_axis(ForwardStep.Type.ATTRIBUTE);
break;
case ForwardStep.Type.NONE:
e.set_axis(ForwardStep.Type.CHILD);
break;
}
e.node_test().accept(this);
return(e);
}
/// <param name="e">
/// is the forward step. </param>
/// <returns> e </returns>
public virtual object visit(ForwardStep e)
{
e.node_test().accept(this);
return(null);
}
