Clozure CL Documentation

11.2. Implementation status

The keyword :openmcl-partial-mop is on *FEATURES* to indicate the presence of this functionality.

All of the symbols defined in the MOP specification (whether implemented or not) are exported from the "CCL" package and from an "OPENMCL-MOP" package.

construct	status
accessor-method-slot-definition	+
add-dependent	+
add-direct-method	+
add-direct-subclass	+
add-method	+
class-default-initargs	+
class-direct-default-initargs	+
class-direct-slots	+
class-direct-subclasses	+
class-direct-superclasses	+
class-finalized-p	+
class-prototype	+
class-slots	+
compute-applicable-methods	-
compute-applicable-methods-using-classes	-
compute-class-precedence-list	+
compute-direct-initargs	+
compute-discriminating-function	-
compute-effective-method	+
compute-effective-slot-definition	+
compute-slots	+
direct-slot-definition-class	+
effective-slot-definition-class	+
ensure-class	+
ensure-class-using-class	+
ensure-generic-function-using-class	+
eql-specializer-object	+
extract-lambda-list	+
extract-specializer-names	+
finalize-inheritance	+
find-method-combination	+
funcallable-standard-instance-access	+
generic-function-argument-precedence-order	+
generic-function-declarations	+
generic-function-lambda-list	+
generic-function-method-class	+
generic-function-method-combination	+
generic-function-methods	+
generic-function-name	+
intern-eql-specializer	+
make-method-lambda	-
map-dependents	+
method-function	+
method-generic-function	+
method-lambda-list	+
method-qualifiers	+
method-specializers	+
reader-method-class	+
remove-dependent	+
remove-direct-method	+
remove-direct-subclass	+
remove-method	+
set-funcallable-instance-function	-
slot-boundp-using-class	+
slot-definition-allocation	+
slot-definition-initargs	+
slot-definition-initform	+
slot-definition-initfunction	+
slot-definition-location	+
slot-definition-name	+
slot-definition-readers	+
slot-definition-type	+
slot-definition-writers	+
slot-makunbound-using-class	+
slot-value-using-class	+
specializer-direct-generic-functions	+
specializer-direct-methods	+
standard-instance-access	+
update-dependent	+
validate-superclass	+
writer-method-class	+

Note that those generic functions whose status is "-" in the table above deal with the internals of generic function dispatch and method invocation (the "Generic Function Invocation Protocol".) Method functions are implemented a bit differently in Clozure CL from what the MOP expects, and it's not yet clear if or how this subprotocol can be well-supported.

Those constructs that are marked as "+" in the table above are nominally implemented as the MOP document specifies (deviations from the specification should be considered bugs; please report them as such.) Note that some CLOS implementations in widespread use (e.g., PCL) implement some things (ENSURE-CLASS-USING-CLASS comes to mind) a bit differently from what the MOP specifies.