Function: eieio-barf-if-slot-unbound

eieio-barf-if-slot-unbound is a byte-compiled function defined in eieio-core.el.gz.

Signature

(eieio-barf-if-slot-unbound VALUE INSTANCE SLOTNAME FN)

Documentation

Throw a signal if VALUE is a representation of an UNBOUND slot.

INSTANCE is the object being referenced. SLOTNAME is the offending slot. If the slot is ok, return VALUE. Argument FN is the function calling this verifier.

Source Code

;; Defined in /usr/src/emacs/lisp/emacs-lisp/eieio-core.el.gz
(defun eieio-barf-if-slot-unbound (value instance slotname fn)
  "Throw a signal if VALUE is a representation of an UNBOUND slot.
INSTANCE is the object being referenced.  SLOTNAME is the offending
slot.  If the slot is ok, return VALUE.
Argument FN is the function calling this verifier."
  (if (and (eq value eieio--unbound) (not eieio-skip-typecheck))
      (slot-unbound instance (eieio--object-class instance) slotname fn)
    value))