This procedure is defined in the server but not documented via ad_proc or proc_doc and may be intended as a private interface.
The procedure is defined as:
proc ::xotcl::self {arg} {
switch $arg {
"" {::uplevel ::nsf::self}
next {
set handle [::uplevel ::nsf::current nextmethod]
method_handle_to_xotcl $handle
}
default {::uplevel ::nsf::current $arg}
}
}