-(defun hyperobject-class-fields (obj)
- (class-slots (class-of obj)))
-
-;;; Slot accessor and class rules
-
-(defclass rule ()
- ((name :initarg :name :initform nil :accessor name)
- (dependants :initarg :dependants :initform nil :accessor dependants)
- (volatile :initarg :volatile :initform nil :accessor volatile)
- (access-slots :initarg :access-slots :initform nil :accessor access-slots)
- (source-code :initarg :source-code :initform nil :accessor source-code)
- (func :initform nil :initarg :func :accessor func)))
-
-(defun compile-rule (source-code dependants volatile cl)
- (let ((access (appendnew dependants volatile)))
- (compile nil
- (eval
- `(lambda (obj)
- (when (every #'(lambda (x) (slot-boundp obj x))
- (quote ,dependants))
- (with-slots ,access obj
- ,@source-code)))))))
-
-(defun finalize-rules (cl)
- (let* ((direct-rules (direct-rules cl))
- (rules '()))
- (dolist (rule direct-rules)
- (destructuring-bind (name (&key dependants volatile) &rest source-code)
- rule
- (setf dependants (mklist dependants)
- volatile (mklist volatile))
- (push
- (make-instance 'rule :name name :dependants dependants
- :volatile volatile :source-code source-code
- :access-slots (appendnew dependants volatile)
- :func (compile-rule
- source-code dependants volatile cl))
- rules)))
- (setf (rules cl) (nreverse rules))))
-
-
-(defun fire-class-rules (cl obj slot)
- "Fire all class rules. Called after a slot is modified."
- (let ((name (slot-definition-name slot)))
- (dolist (rule (rules cl))
- (when (find name (dependants rule))
- (cmsg-c :debug "firing rule: ~W" (source-code rule))
- (funcall (func rule) obj)))))