built-in method
self/1
Description
self(Self)
Unifies its argument with the object that received the message under processing.
This private method is compiled into a unification between its argument and the corresponding implicit context argument in the predicate clause making the call. This unification occurs at the clause head when the argument is not bound at compile-time (the most common case).
Modes and number of proofs
self(?object_identifier) - zero_or_one
Errors
(none)
Examples
% upon compilation, the write/1 call will be
% the first goal in the clause body
test :-
self(Self),
write('executing a method in behalf of '),
writeq(Self), nl.
See also