src/module-parse.lisp (read-module): Provide sensible default error-recovery.

[sod] / src / method-impl.lisp

diff --git a/src/method-impl.lisp b/src/method-impl.lisp
index 20380a7c4b7818bf044b79403a5532847a841cda..5ea09e36c67535dbe6b451a45fd18c289548e48a 100644 (file)
--- a/src/method-impl.lisp
+++ b/src/method-impl.lisp
@@ -152,6 +152,11 @@ (define-on-demand-slot basic-direct-method function-type (method)
                 ("me" (* (class (sod-method-class method))))
                 . method-args))))
 
+(defmethod sod-method-description ((method basic-direct-method))
+  (with-slots (role) method
+    (if role (string-downcase role)
+       "primary")))
+
 (defmethod sod-method-function-name ((method basic-direct-method))
   (with-slots ((class %class) role message) method
     (format nil "~A__~@[~(~A~)_~]method_~A__~A" class role
@@ -244,21 +249,48 @@ (define-on-demand-slot delegating-direct-method function-type (method)
 ;;;--------------------------------------------------------------------------
 ;;; Effective method classes.
 
+(defmethod method-keyword-argument-lists
+    ((method effective-method) direct-methods state)
+  (with-slots (message) method
+    (and (keyword-message-p message)
+        (cons (cons (lambda (arg)
+                      (let ((class (sod-message-class message)))
+                        (info-with-location
+                         message "Type `~A' declared in message ~
+                                  definition in `~A' (here)"
+                         (argument-type arg) class)
+                        (report-inheritance-path state class)))
+                    (c-function-keywords (sod-message-type message)))
+              (mapcar (lambda (m)
+                        (cons (lambda (arg)
+                                (let ((class (sod-method-class m)))
+                                  (info-with-location
+                                   m "Type `~A' declared in ~A direct ~
+                                      method of `~A' (defined here)"
+                                   (argument-type arg)
+                                   (sod-method-description m) class)
+                                  (report-inheritance-path state class)))
+                              (c-function-keywords (sod-method-type m))))
+                      direct-methods)))))
+
 (defmethod shared-initialize :after
     ((method effective-method) slot-names &key direct-methods)
   (declare (ignore slot-names))
 
-  ;; Set the keyword argument list.
-  (with-slots (message keywords) method
-    (setf keywords (and (keyword-message-p message)
-                       (merge-keyword-lists
-                        (mapcar (lambda (m)
-                                  (let ((type (sod-method-type m)))
-                                    (cons (c-function-keywords type)
-                                          (format nil "method for ~A on ~A"
-                                                  message
-                                                  (sod-method-class m)))))
-                                direct-methods))))))
+  ;; Set the keyword argument list.  Blame the class as a whole for mismatch
+  ;; errors, because they're fundamentally a non-local problem about the
+  ;; class construction.
+  (with-slots ((class %class) message keywords) method
+    (setf keywords
+         (merge-keyword-lists
+          (lambda ()
+            (values class
+                    (format nil
+                            "methods for message `~A' ~
+                             applicable to class `~A'"
+                            message class)))
+          (method-keyword-argument-lists method direct-methods
+           (make-inheritance-path-reporter-state class))))))
 
 (export '(basic-effective-method
          effective-method-around-methods effective-method-before-methods