Function: idlwave-all-class-inherits

idlwave-all-class-inherits is a byte-compiled function defined in idlwave.el.gz.

Signature

(idlwave-all-class-inherits CLASS)

Documentation

Return a list of all superclasses of CLASS (recursively expanded).

The list is cached in idlwave-class-info(var)/idlwave-class-info(fun) for faster access.

Source Code

;; Defined in /usr/src/emacs/lisp/progmodes/idlwave.el.gz
(defun idlwave-all-class-inherits (class)
  "Return a list of all superclasses of CLASS (recursively expanded).
The list is cached in `idlwave-class-info' for faster access."
  (cond
   ((not idlwave-support-inheritance) nil)
   ((eq class nil) nil)
   ((eq class t) nil)
   (t
    (let ((info (idlwave-class-info class))
	  entry)
      (if (setq entry (assq 'all-inherits info))
	  (cdr entry)
	;; Save the depth of inheritance scan to check for circular references
	(let ((inherits (mapcar (lambda (x) (cons x 0))
				(idlwave-class-inherits class)))
	      rtn all-inherits cl)
	  (while inherits
	    (setq cl (pop inherits)
		  rtn (cons (car cl) rtn)
		  inherits (append (mapcar (lambda (x)
					     (cons x (1+ (cdr cl))))
					   (idlwave-class-inherits (car cl)))
				   inherits))
	    (if (> (cdr cl) 999)
	      (error
               "Class scan: inheritance depth exceeded.  Circular inheritance?")))
	  (setq all-inherits (nreverse rtn))
	  (nconc info (list (cons 'all-inherits all-inherits)))
	  all-inherits))))))