X-Git-Url: http://git.kpe.io/?a=blobdiff_plain;ds=sidebyside;f=mop.lisp;h=ca59a1c31eaf82f5a7f83ad5d20412a86595dde5;hb=61c28767dc6071b3f8edf0834aeab94eb40c3352;hp=54f685979f77a2681d69c6766caf1ee29daa3bb1;hpb=2ec170fb14c93a96313863aa47892bf1187503dc;p=hyperobject.git

diff --git a/mop.lisp b/mop.lisp
index 54f6859..ca59a1c 100644
--- a/mop.lisp
+++ b/mop.lisp
@@ -11,7 +11,7 @@
 ;;;; in Text, HTML, and XML formats. This includes hyperlinking
 ;;;; capability and sub-objects.
 ;;;;
-;;;; $Id: mop.lisp,v 1.17 2002/12/26 23:18:16 kevin Exp $
+;;;; $Id: mop.lisp,v 1.34 2003/03/29 20:58:09 kevin Exp $
 ;;;;
 ;;;; This file is Copyright (c) 2000-2002 by Kevin M. Rosenberg
 ;;;;
@@ -281,6 +281,31 @@
        (setf (slot-value ,the-instance ,the-slot-name)
 	   (,reader ,@keys)))))
 
+#+(or sbcl scl cmu)
+(defun ensure-lazy-reader (class-name slot-name reader &rest reader-keys)
+  (let ((keys nil)
+	(gf (ensure-generic-function 'slot-unbound)))
+    (dolist (key reader-keys)
+      (push (list 'slot-value 'the-instance (list 'quote key)) keys))
+    (setq keys (nreverse keys))
+    (multiple-value-bind (method-lambda init-args-values)
+      (make-method-lambda
+       gf
+       (class-prototype (generic-function-method-class gf))
+       `(lambda (the-class the-instance the-slot-name)
+	 (declare (ignore the-class))
+	 (setf (slot-value the-instance the-slot-name) (,reader ,@keys)))
+       nil)
+	(add-method gf
+		    (apply
+		     #'make-instance (generic-function-method-class gf)
+		     ':specializers (list (class-of (find-class class-name))
+					  (find-class class-name)
+					  (intern-eql-specializer slot-name))
+		     ':lambda-list '(the-class the-instance the-slot-name)
+		     ':function (compile nil method-lambda)
+		     init-args-values)))))
+
 (defun finalize-subobjects (cl)
   "Process class subobjects slot"
   (setf (subobjects cl)
@@ -297,9 +322,15 @@
 							   nil
 							   (cdr subobj-def)))))
 	    (unless (eq (lookup subobject) t)
-	      (eval `(def-lazy-reader ,(name-class subobject)
-			 ,(name-slot subobject) ,(lookup subobject)
-			 ,@(lookup-keys subobject))))
+	      #-(or sbcl cmu scl)
+	      (eval
+	       `(hyperobject::def-lazy-reader ,(name-class subobject)
+		 ,(name-slot subobject) ,(lookup subobject)
+		 ,@(lookup-keys subobject)))
+	      #+(or sbcl cmu scl)
+	      (apply #'ensure-lazy-reader 
+		     (name-class subobject) (name-slot subobject) (lookup subobject) (lookup-keys subobject))
+	      )
 	    (push subobject subobjects))))
       subobjects)))