| 4358148e |
1 | (in-package :contextl) |
| 2 | |
| 3 | ;;; HACK: We are ending up with classes named NIL in the superclass list. |
| 4 | ;;; These cannot be given the special object superclass when re-initializing |
| 5 | ;;; is it will be in the subclasses superclasses AFTER this class, causing |
| 6 | ;;; a confict. |
| 7 | ;;; Since we don't care about these classes (?) this might work (?) |
| 8 | |
| 9 | (defmethod initialize-instance :around |
| 10 | ((class special-class) &rest initargs |
| 11 | &key direct-superclasses) |
| 12 | (declare (dynamic-extent initargs)) |
| 13 | (if (or |
| 14 | ;; HACK begins |
| 15 | (not (ignore-errors (class-name class))) |
| 16 | ;; ENDHACK |
| 17 | (loop for superclass in direct-superclasses |
| 18 | thereis (ignore-errors (subtypep superclass 'special-object)))) |
| 19 | (call-next-method) |
| 20 | (progn (apply #'call-next-method class |
| 21 | :direct-superclasses |
| 22 | (append direct-superclasses |
| 23 | (list (find-class 'special-object))) |
| 24 | initargs)))) |
| 25 | |
| 26 | (defmethod reinitialize-instance :around |
| 27 | ((class special-class) &rest initargs |
| 28 | &key (direct-superclasses () direct-superclasses-p)) |
| 29 | (declare (dynamic-extent initargs)) |
| 30 | (if direct-superclasses-p |
| 31 | (if (or ; Here comes the hack |
| 32 | (not (class-name class)) |
| 33 | ;endhack |
| 34 | (loop for superclass in direct-superclasses |
| 35 | thereis (ignore-errors (subtypep superclass 'special-object)))) |
| 36 | (call-next-method) |
| 37 | (apply #'call-next-method class |
| 38 | :direct-superclasses |
| 39 | (append direct-superclasses |
| 40 | (list |
| 41 | (find-class 'special-object))) |
| 42 | initargs))) |
| 6de8d300 |
43 | (call-next-method)) |
| 44 | |
| 45 | |
| 46 | |
| 47 | (defun funcall-with-special-initargs (bindings thunk) |
| 48 | (let ((arg-count 0)) |
| 49 | (special-symbol-progv |
| 50 | (loop for (object . initargs) in bindings |
| 51 | for initarg-keys = (loop for key in initargs by #'cddr |
| 52 | collect key into keys |
| 53 | count t into count |
| 54 | finally (incf arg-count count) |
| 55 | (return keys)) |
| 56 | nconc (loop for slot in (class-slots (class-of object)) |
| 57 | when (and (slot-definition-specialp slot) |
| 58 | (intersection initarg-keys (slot-definition-initargs slot))) |
| 59 | collect (with-symbol-access |
| 60 | (slot-value object (slot-definition-name slot))))) |
| 61 | (make-list arg-count :initial-element nil) |
| 62 | (loop for (object . initargs) in bindings |
| 63 | do (apply #'shared-initialize object nil :allow-other-keys t initargs)) |
| 64 | (funcall thunk)))) |
HCoop / clinton / lisp-on-lines.git / blame