DEFCLASS
supports the option :METACLASS
STRUCTURE-CLASS
.
This option is necessary in order to define a subclass of a
DEFSTRUCT
-defined structure type using DEFCLASS
instead of
DEFSTRUCT
.
When CALL-NEXT-METHOD
is called with arguments, the rule that
the ordered set of applicable methods must be the same as for the
original arguments is enforced by the implementation only in
interpreted code.
CLOS:GENERIC-FLET
and
CLOS:GENERIC-LABELS
are implemented as macros, not as special operators (as permitted by
[sec_3-1-2-1-2-2]).
They are not imported into the packages “COMMON-LISP-USER” and “COMMON-LISP” because
of the [ANSI CL standard] issue GENERIC-FLET-POORLY-DESIGNED:DELETE.
PRINT-OBJECT
is only called on objects of type
STANDARD-OBJECT
and STRUCTURE-OBJECT
.
It is not called on other objects, like CONS
es
and NUMBER
s, due to the performance concerns.
These notes document CLISP version 2.49 | Last modified: 2010-07-07 |