7.7.35 add-method [Standard Generic Function]

Syntax::

add-method generic-function method ⇒ generic-function

Method Signatures::

add-method (generic-function standard-generic-function) (method method)

Arguments and Values::

generic-function—a generic function object.

method—a method object.

Description::

The generic function add-method adds a method to a generic function.

If method agrees with an existing method of generic-function on parameter specializers and qualifiers, the existing method is replaced.

Exceptional Situations::

The lambda list of the method function of method must be congruent with the lambda list of generic-function, or an error of type error is signaled.

If method is a method object of another generic function, an error of type error is signaled.

See Also::

defmethod , defgeneric , find-method , remove-method , Agreement on Parameter Specializers and Qualifiers