;;;; in Text, HTML, and XML formats. This includes hyperlinking
;;;; capability and sub-objects.
;;;;
-;;;; $Id: mop.lisp,v 1.53 2003/04/16 19:20:51 kevin Exp $
-;;;;
-;;;; This file is Copyright (c) 2000-2002 by Kevin M. Rosenberg
+;;;; $Id: mop.lisp,v 1.73 2003/05/15 06:30:19 kevin Exp $
;;;;
+;;;; This file is Copyright (c) 2000-2003 by Kevin M. Rosenberg
;;;; *************************************************************************
(in-package :hyperobject)
(user-name :initarg :user-name :type string :initform nil
:accessor user-name
:documentation "User name for class")
+ (user-name-plural :initarg :user-name-plural :type string :initform nil
+ :accessor user-name-plural
+ :documentation "Plural user name for class")
(default-print-slots :initarg :default-print-slots :type list :initform nil
:accessor default-print-slots
:documentation "Defaults slots for a view")
(defclass subobject ()
((name-class :type symbol :initform nil :initarg :name-class :reader name-class)
(name-slot :type symbol :initform nil :initarg :name-slot :reader name-slot)
- (lookup :type symbol :initform nil :initarg :lookup :reader lookup)
+ (lookup :type (or function symbol) :initform nil :initarg :lookup :reader lookup)
(lookup-keys :type list :initform nil :initarg :lookup-keys
:reader lookup-keys))
(:documentation "Contains subobject information"))
(defclass hyperlink ()
((name :type symbol :initform nil :initarg :name :reader name)
- (lookup :type (or function symbol) :initform nil :initarg :lookup :reader lookup)
+ (lookup
+ ;; The type specifier seems to break sbcl
+ :type (or function symbol)
+ ;; :type t
+ :initform nil :initarg :lookup :reader lookup)
(link-parameters :type list :initform nil :initarg :link-parameters
:reader link-parameters)))
(init-hyperobject-class cl)
)
+(eval-when (:compile-toplevel :load-toplevel :execute)
+ (when (>= (length (generic-function-lambda-list
+ (ensure-generic-function
+ 'compute-effective-slot-definition)))
+ 3)
+ (pushnew :ho-normal-cesd cl:*features*))
+
+ (when (>= (length (generic-function-lambda-list
+ (ensure-generic-function
+ 'direct-slot-definition-class)))
+ 3)
+ (pushnew :ho-normal-dsdc cl:*features*))
+
+ (when (>= (length (generic-function-lambda-list
+ (ensure-generic-function
+ 'effective-slot-definition-class)))
+ 3)
+ (pushnew :ho-normal-esdc cl:*features*)))
+
;; Slot definitions
-(defmethod direct-slot-definition-class ((cl hyperobject-class)
- #+allegro &rest
- iargs)
+(defmethod direct-slot-definition-class ((cl hyperobject-class)
+ #+ho-normal-dsdc &rest iargs)
(find-class 'hyperobject-dsd))
+(defmethod effective-slot-definition-class ((cl hyperobject-class)
+ #+ho-normal-esdc &rest iargs)
+ (find-class 'hyperobject-esd))
+
- ; Slot definitions
+;;; Slot definitions
(eval-when (:compile-toplevel :load-toplevel :execute)
(defmacro process-class-option (slot-name &optional required)
(t
t)))
-(eval-when (:compile-toplevel :load-toplevel :execute)
- (when (>= (length (generic-function-lambda-list
- (ensure-generic-function
- 'compute-effective-slot-definition)))
- 3)
- (push :ho-named-cesd-fun cl:*features*)))
-
-(defmethod compute-effective-slot-definition :around ((cl hyperobject-class)
- #+ho-named-cesd-fun name
- dsds)
+#+ignore
+(defmethod compute-effective-slot-definition :around ((cl hyperobject-class) #+ho-normal-cesd name dsds)
#+allegro (declare (ignore name))
(let* ((dsd (car dsds))
(value-type (canonicalize-value-type (slot-value dsd 'value-type))))
:hyperlink-parameters (slot-value dsd 'hyperlink-parameters)
:description (slot-value dsd 'description)
:user-name (slot-value dsd 'user-name)
+ :user-name-plural (slot-value dsd 'user-name-plural)
:index (slot-value dsd 'index)
:value-constraint (slot-value dsd 'value-constraint)
:null-allowed (slot-value dsd 'null-allowed)
ia)))))
-
-#+ho-named-cesd-fun
-(setq cl:*features* (delete :ho-named-cesd-fun cl:*features*))
+(defmethod compute-effective-slot-definition :around ((cl hyperobject-class) #+ho-normal-cesd name dsds)
+ #+ho-normal-cesd (declare (ignore name))
+ (let* ((esd (call-next-method))
+ (dsd (car dsds))
+ (value-type (canonicalize-value-type (slot-value dsd 'value-type))))
+ (multiple-value-bind (sql-type length) (value-type-to-sql-type value-type)
+ (setf (slot-value esd 'sql-type) sql-type)
+ (setf (slot-value esd 'length) length)
+ (setf (slot-value esd 'type) (value-type-to-lisp-type value-type))
+ (setf (slot-value esd 'value-type) value-type)
+ (dolist (name '(print-formatter subobject hyperlink hyperlink-parameters
+ description value-constraint index null-allowed user-name))
+ (setf (slot-value esd name) (slot-value dsd name)))
+ esd)))
+
+
+#+ho-normal-cesd
+(setq cl:*features* (delete :ho-normal-cesd cl:*features*))
+#+ho-normal-dsdc
+(setq cl:*features* (delete :ho-normal-dsdc cl:*features*))
+#+ho-normal-esdc
+(setq cl:*features* (delete :ho-normal-esdc cl:*features*))
+
+(defun lisp-type-is-a-string (type)
+ (or (eq type 'string)
+ (and (listp type) (some #'(lambda (x) (eq x 'string)) type))))
(defun value-type-to-lisp-type (value-type)
(case (if (atom value-type)
value-type
(car value-type))
((:string :cdata :varchar :char)
- 'string)
+ '(or null string))
(:character
- 'character)
+ '(or null character))
(:fixnum
- 'fixnum)
+ '(or null fixnum))
(:boolean
- 'boolean)
+ '(or null boolean))
(:integer
- 'integer)
+ '(or null integer))
((:float :single-float)
- 'single-float)
+ '(or null single-float))
(:double-float
- 'double-float)
+ '(or null double-float))
(otherwise
t)))
`(defmethod slot-unbound (,the-class (,the-instance ,class)
(,the-slot-name (eql ',slot-name)))
(declare (ignore ,the-class))
- (setf (slot-value ,the-instance ,the-slot-name)
- (,reader ,@keys)))))
+ (setf (slot-value ,the-instance ,the-slot-name) (,reader ,@keys)))))
+
#+lispworks
(defun intern-eql-specializer (slot)
':function (compile nil method-lambda)
init-args-values)))))
+#+(or allegro scl)
+(progn
+ ;; One entry for each class with lazy readers defined. The value is a plist mapping
+ ;; slot-name to a lazy reader, each of which is a list of a function and slot-names.
+ (defvar *lazy-readers* (make-hash-table))
+
+(defmethod slot-unbound :around ((class hyperobject-class) instance slot-name)
+ (let ((lazy-reader (loop for super in (class-precedence-list class)
+ as lazy-reader = (getf (gethash super *lazy-readers*) slot-name)
+ when lazy-reader return it)))
+ (if lazy-reader
+ (setf (slot-value instance slot-name)
+ (apply (car lazy-reader)
+ (loop for arg-slot-name in (cdr lazy-reader)
+ collect (slot-value instance arg-slot-name))))
+ ;; No lazy reader -- defer to regular slot-unbound handling.
+ (call-next-method))))
+
+ ;; The reader is a function and the reader-keys are slot names. The slot is lazily set to
+ ;; the result of applying the function to the slot-values of those slots, and that value
+ ;; is also returned.
+ (defun ensure-lazy-reader (class-name slot-name reader &rest reader-keys)
+ (setf (getf (gethash (find-class class-name) *lazy-readers*) slot-name)
+ (list* reader (copy-list reader-keys))))
+
+ (defun remove-lazy-reader (class-name slot-name)
+ (setf (getf (gethash (find-class class-name) *lazy-readers*) slot-name)
+ nil))
+
+ ) ;; #+(or allegro scl)
+
+
(defun finalize-subobjects (cl)
"Process class subobjects slot"
(setf (subobjects cl)
(let ((subobjects '()))
(dolist (slot (class-slots cl))
- (let-when (subobj-def (esd-subobject slot))
- (let ((subobject (make-instance 'subobject
- :name-class (class-name cl)
- :name-slot (slot-definition-name slot)
- :lookup (if (atom subobj-def)
- subobj-def
- (car subobj-def))
- :lookup-keys (if (atom subobj-def)
- nil
- (cdr subobj-def)))))
- (unless (eq (lookup subobject) t)
- #-(or sbcl cmu lispworks)
- (eval
- `(hyperobject::def-lazy-reader ,(name-class subobject)
- ,(name-slot subobject) ,(lookup subobject)
- ,@(lookup-keys subobject)))
- #+(or sbcl cmu lispworks)
- (apply #'ensure-lazy-reader
- (name-class subobject) (name-slot subobject) (lookup subobject) (lookup-keys subobject))
- )
- (push subobject subobjects))))
+ (let-when
+ (subobj-def (esd-subobject slot))
+ (let ((subobject
+ (make-instance 'subobject
+ :name-class (class-name cl)
+ :name-slot (slot-definition-name slot)
+ :lookup (if (atom subobj-def)
+ subobj-def
+ (car subobj-def))
+ :lookup-keys (if (atom subobj-def)
+ nil
+ (cdr subobj-def)))))
+ (unless (eq (lookup subobject) t)
+ #+ignore ;; #-(or sbcl cmu lispworks)
+ (eval
+ `(hyperobject::def-lazy-reader ,(name-class subobject)
+ ,(name-slot subobject) ,(lookup subobject)
+ ,@(lookup-keys subobject)))
+ #+(or sbcl cmu lispworks allegro scl)
+ (apply #'ensure-lazy-reader
+ (name-class subobject) (name-slot subobject)
+ (lookup subobject) (lookup-keys subobject)))
+ (push subobject subobjects))))
;; sbcl/cmu reverse class-slots compared to the defclass form
- ;; subobject is already reversed from the dolist/push loop, so re-reverse on cmu/sbcl
+ ;; so re-reverse on cmu/sbcl
#+(or cmu sbcl) subobjects
#-(or cmu sbcl) (nreverse subobjects)
)))
+
+(defun finalize-class-slots (cl)
+ "Make sure all class slots have an expected value"
+ (unless (user-name cl)
+ (setf (user-name cl) (format nil "~:(~A~)" (class-name cl))))
+
+ (setf (user-name-plural cl)
+ (if (and (consp (user-name cl)) (cadr (user-name cl)))
+ (cadr (user-name cl))
+ (format nil "~A~P" (if (consp (user-name cl))
+ (car (user-name cl))
+ (user-name cl))
+ 2)))
+
+ (dolist (name '(user-name description))
+ (awhen (slot-value cl name)
+ (setf (slot-value cl name)
+ (etypecase (slot-value cl name)
+ (cons (car it))
+ ((or string symbol) it))))))
+
(defun finalize-documentation (cl)
"Calculate class documentation slot"
- (awhen (slot-value cl 'user-name)
- (setf (slot-value cl 'user-name)
- (etypecase (slot-value cl 'user-name)
- (cons (car it))
- ((or string symbol) it))))
- (awhen (slot-value cl 'description)
- (setf (slot-value cl 'description)
- (etypecase (slot-value cl 'description)
- (cons (car it))
- ((or string symbol) it))))
-
(let ((*print-circle* nil))
(setf (documentation (class-name cl) 'class)
(format nil "Hyperobject~A~A~A~A"
(finalize-hyperlinks cl)
(finalize-sql cl)
(finalize-rules cl)
+ (finalize-class-slots cl)
(finalize-documentation cl))
(find name (class-slots cl) :key #'slot-definition-name))
(defun hyperobject-class-user-name (obj)
- (awhen (user-name (class-of obj))
- (if (consp it)
- (car it)
- it)))
+ (user-name (class-of obj)))
+
+(defun hyperobject-class-user-name-plural (obj)
+ (user-name-plural (class-of obj)))
(defun hyperobject-class-subobjects (obj)
(subobjects (class-of obj)))
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