7.7.10 slot-exists-p [Function]

slot-exists-p object slot-name ⇒ generalized-boolean

Arguments and Values::

object—an object.

slot-name—a symbol.

generalized-boolean—a generalized boolean.

Description::

Returns true if the object has a slot named slot-name.

Affected By::

defclass, defstruct

See Also::

defclass , slot-missing

Notes::

Although no implementation is required to do so, implementors are strongly encouraged to implement the function slot-exists-p using the function slot-exists-p-using-class described in the Metaobject Protocol.