/// <summary>
/// Validate a schema attribute test.
/// </summary>
/// <param name="e">
/// is the expression. </param>
/// <returns> null. </returns>
public virtual object visit(SchemaAttrTest e)
{
QName name = e.arg();
if (!expandItemQName(name))
{
reportBadPrefix(name.prefix());
}
if (_sc.TypeModel.lookupAttributeDeclaration(name.@namespace(), name.local()) == null)
{
reportError(new StaticAttrNameError("Attribute not decleared: " + name.@string()));
}
return(null);
}
