| 1 | (in-package :lisp-on-lines) |
| 2 | |
| 3 | |
| 4 | (define-layered-class list-attribute (standard-attribute) |
| 5 | ((item-args :initform nil :initarg :item :layered t :special t))) |
| 6 | |
| 7 | (define-layered-method display-attribute-value |
| 8 | ((attribute list-attribute)) |
| 9 | (arnesi:dolist* (item (attribute-value attribute)) |
| 10 | (apply #'display *display* item (slot-value attribute 'item-args)))) |
| 11 | |
| 12 | (define-description list () |
| 13 | ((list :attribute-class list-attribute |
| 14 | :function #'identity |
| 15 | :attributes nil))) |
| 16 | |
| 17 | (define-description cons (list) |
| 18 | ((car :label "First" :function #'car) |
| 19 | (cdr :label "Rest" :function #'cdr) |
| 20 | )) |
| 21 | |
| 22 | (define-description cons () |
| 23 | ((editp :value t :editp nil) |
| 24 | (car :setter #'rplaca) |
| 25 | (cdr :setter #'rplacd)) |
| 26 | (:in-description editable)) |
| 27 | |
| 28 | (define-description cons () |
| 29 | ((active-attributes :value '(list))) |
| 30 | (:in-description inline)) |
| 31 | |
| 32 | (define-layered-method description-of ((c cons)) |
| 33 | (find-description 'cons)) |
| 34 | |
| 35 | |
| 36 | |
| 37 | |
| 38 | |
| 39 | |