X-Git-Url: http://repo.macrolet.net/gitweb/?a=blobdiff_plain;ds=sidebyside;f=src%2Fpcl%2Fbraid.lisp;h=82f15630bacd051853d5b3c14fca61b42bd8aefe;hb=227096b878fee7afae9d3bc2cee5df01449bca2d;hp=ed010f8ba6a6c64c934cd0412b248ed589777f86;hpb=479ef26343b45753fc019b6535d3aa0ee54cb324;p=sbcl.git

diff --git a/src/pcl/braid.lisp b/src/pcl/braid.lisp
index ed010f8..82f1563 100644
--- a/src/pcl/braid.lisp
+++ b/src/pcl/braid.lisp
@@ -194,7 +194,8 @@
 		   class)
 	      (dolist (slot slots)
 		(unless (eq (getf slot :allocation :instance) :instance)
-		  (error "Slot allocation ~S is not supported in bootstrap.")))
+		  (error "Slot allocation ~S is not supported in bootstrap."
+			 (getf slot :allocation))))
 
 	      (when (typep wrapper 'wrapper)
 		(setf (wrapper-instance-slots-layout wrapper)
@@ -697,7 +698,7 @@
 (setq *boot-state* 'braid)
 
 (defmethod no-applicable-method (generic-function &rest args)
-  (error "~@<There is no matching method for the generic function ~2I~_~S~
+  (error "~@<There is no applicable method for the generic function ~2I~_~S~
 	  ~I~_when called with arguments ~2I~_~S.~:>"
 	 generic-function
 	 args))
@@ -719,3 +720,20 @@
 	  ~I~_when called with arguments ~2I~_~S.~:>"
 	 generic-function
 	 args))
+
+(defmethod invalid-qualifiers ((gf generic-function)
+			       combin
+			       method)
+  (let ((qualifiers (method-qualifiers method)))
+    (let ((why (cond
+		 ((cdr qualifiers) "has too many qualifiers")
+		 (t (aver (not (member (car qualifiers)
+				       '(:around :before :after))))
+		    "has an invalid qualifier"))))
+      (invalid-method-error
+       method
+       "The method ~S on ~S ~A.~%~
+        Standard method combination requires all methods to have one~%~
+        of the single qualifiers :AROUND, :BEFORE and :AFTER or to~%~
+        have no qualifier at all."
+       method gf why))))