allocate-instance

(allocate-instance class &rest initargs)

Returns a fresh instance of class -- a class metaobject (the find-class / class-of answer) or a class name symbol -- with EVERY slot unbound: no :initform runs and initialize-instance is not called. This is the low-level allocation step object mappers build on (allocate, then fill each slot with (setf (slot-value ...))); reading a slot before it is written signals unbound-slot. The initargs are accepted and ignored, as in Common Lisp (they are only seen by methods on allocate-instance, which the static subset does not support). Only defclass / define-condition classes can be allocated; a built-in class or a defstruct class signals an error.