0.7.9.49:
[sbcl.git] / src / pcl / boot.lisp
index c2184b3..c4b2bda 100644 (file)
@@ -171,7 +171,25 @@ bootstrapping.
          (let ((car-option (car option)))
            (case car-option
              (declare
-              (push (cdr option) (initarg :declarations)))
+              (when (and
+                     (consp (cadr option))
+                     (member (first (cadr option))
+                             ;; FIXME: this list is slightly weird.
+                             ;; ANSI (on the DEFGENERIC page) in one
+                             ;; place allows only OPTIMIZE; in
+                             ;; another place gives this list of
+                             ;; disallowed declaration specifiers.
+                             ;; This seems to be the only place where
+                             ;; the FUNCTION declaration is
+                             ;; mentioned; TYPE seems to be missing.
+                             ;; Very strange.  -- CSR, 2002-10-21
+                             '(declaration ftype function
+                               inline notinline special)))
+                (error 'simple-program-error
+                       :format-control "The declaration specifier ~S ~
+                                         is not allowed inside DEFGENERIC."
+                       :format-arguments (list (cadr option))))
+              (push (cadr option) (initarg :declarations)))
              ((:argument-precedence-order :method-combination)
               (if (initarg car-option)
                   (duplicate-option car-option)
@@ -221,7 +239,7 @@ bootstrapping.
   (apply #'ensure-generic-function
          fun-name
          :lambda-list lambda-list
-         :definition-source `((defgeneric ,fun-name) ,*load-truename*)
+         :definition-source `((defgeneric ,fun-name) ,*load-pathname*)
          initargs))
 
 ;;; As per section 3.4.2 of the ANSI spec, generic function lambda
@@ -497,6 +515,13 @@ bootstrapping.
                 ;; another declaration (e.g. %BLOCK-NAME), so that
                 ;; our method debug names are free to have any format,
                 ;; e.g. (:METHOD PRINT-OBJECT :AROUND (CLOWN T)).
+                ;;
+                ;; Further, as of sbcl-0.7.9.10, the code to
+                ;; implement NO-NEXT-METHOD is coupled to the form of
+                ;; this declaration; see the definition of
+                ;; CALL-NO-NEXT-METHOD (and the passing of
+                ;; METHOD-NAME-DECLARATION arguments around the
+                ;; various CALL-NEXT-METHOD logic).
                 (declare (%method-name (,name
                                         ,@qualifiers
                                         ,specializers)))
@@ -708,6 +733,14 @@ bootstrapping.
                                        :call-next-method-p
                                        ,call-next-method-p
                                        :next-method-p-p ,next-method-p-p
+                                       ;; we need to pass this along
+                                       ;; so that NO-NEXT-METHOD can
+                                       ;; be given a suitable METHOD
+                                       ;; argument; we need the
+                                       ;; QUALIFIERS and SPECIALIZERS
+                                       ;; inside the declaration to
+                                       ;; give to FIND-METHOD.
+                                       :method-name-declaration ,name-decl
                                        :closurep ,closurep
                                        :applyp ,applyp)
                          ,@walked-declarations
@@ -751,18 +784,32 @@ bootstrapping.
                       (,',next-methods (cdr ,',next-methods)))
                   .next-method. ,',next-methods
                   ,@body))
-             (call-next-method-body (cnm-args)
+             (call-next-method-body (method-name-declaration cnm-args)
                `(if .next-method.
                     (funcall (if (std-instance-p .next-method.)
                                  (method-function .next-method.)
                                  .next-method.) ; for early methods
                              (or ,cnm-args ,',method-args)
                              ,',next-methods)
-                    (error "no next method")))
+                    (apply #'call-no-next-method ',method-name-declaration
+                           (or ,cnm-args ,',method-args))))
              (next-method-p-body ()
                `(not (null .next-method.))))
      ,@body))
 
+(defun call-no-next-method (method-name-declaration &rest args)
+  (destructuring-bind (name) method-name-declaration
+    (destructuring-bind (name &rest qualifiers-and-specializers) name
+      ;; KLUDGE: inefficient traversal, but hey.  This should only
+      ;; happen on the slow error path anyway.
+      (let* ((qualifiers (butlast qualifiers-and-specializers))
+            (specializers (car (last qualifiers-and-specializers)))
+            (method (find-method (gdefinition name) qualifiers specializers)))
+       (apply #'no-next-method
+              (method-generic-function method)
+              method
+              args)))))
+
 (defstruct (method-call (:copier nil))
   (function #'identity :type function)
   call-method-args)
@@ -993,7 +1040,7 @@ bootstrapping.
                   ,emf))
              (call-next-method-bind (&body body)
                `(let () ,@body))
-             (call-next-method-body (cnm-args)
+             (call-next-method-body (method-name-declaration cnm-args)
                `(if ,',next-method-call
                  ,(locally
                    ;; This declaration suppresses a "deleting
@@ -1021,34 +1068,38 @@ bootstrapping.
                                        ,cnm-args)
                             ,call)
                            ,call))))
-                 (error "no next method")))
+                ,(locally
+                  ;; As above, this declaration supresses code
+                  ;; deletion notes.
+                  (declare (optimize (inhibit-warnings 3)))
+                  (if (and (null ',rest-arg)
+                           (consp cnm-args)
+                           (eq (car cnm-args) 'list))
+                      `(call-no-next-method ',method-name-declaration
+                                            ,@(cdr cnm-args))
+                      `(call-no-next-method ',method-name-declaration
+                                            ,@',args
+                                            ,@',(when rest-arg
+                                                      `(,rest-arg)))))))
              (next-method-p-body ()
                `(not (null ,',next-method-call))))
     ,@body))
 
 (defmacro bind-lexical-method-functions
-    ((&key call-next-method-p next-method-p-p closurep applyp)
+    ((&key call-next-method-p next-method-p-p
+          closurep applyp method-name-declaration)
      &body body)
   (cond ((and (null call-next-method-p) (null next-method-p-p)
              (null closurep)
              (null applyp))
         `(let () ,@body))
-       ((and (null closurep)
-             (null applyp))
-        ;; OK to use MACROLET, and all args are mandatory
-        ;; (else APPLYP would be true).
-        `(call-next-method-bind
-           (macrolet ((call-next-method (&rest cnm-args)
-                        `(call-next-method-body ,(when cnm-args
-                                                   `(list ,@cnm-args))))
-                      (next-method-p ()
-                        `(next-method-p-body)))
-              ,@body)))
        (t
         `(call-next-method-bind
            (flet (,@(and call-next-method-p
-                         '((call-next-method (&rest cnm-args)
-                             (call-next-method-body cnm-args))))
+                         `((call-next-method (&rest cnm-args)
+                            (call-next-method-body
+                             ,method-name-declaration
+                             cnm-args))))
                   ,@(and next-method-p-p
                          '((next-method-p ()
                              (next-method-p-body)))))
@@ -1288,7 +1339,7 @@ bootstrapping.
                       :definition-source `((defmethod ,gf-spec
                                                ,@qualifiers
                                              ,specializers)
-                                           ,*load-truename*)
+                                           ,*load-pathname*)
                       initargs)))
     (unless (or (eq method-class 'standard-method)
                (eq (find-class method-class nil) (class-of method)))
@@ -1595,11 +1646,10 @@ bootstrapping.
                               (method-lambda-list method)))
     (flet ((lose (string &rest args)
             (error 'simple-program-error
-                   :format-control "attempt to add the method ~S ~
-                                     to the generic function ~S.~%~
-                                     But ~A"
-                   :format-arguments (list method gf
-                                           (apply #'format nil string args))))
+                   :format-control "~@<attempt to add the method~2I~_~S~I~_~
+                                     to the generic function~2I~_~S;~I~_~
+                                     but ~?~:>"
+                   :format-arguments (list method gf string args)))
           (comparison-description (x y)
             (if (> x y) "more" "fewer")))
       (let ((gf-nreq (arg-info-number-required arg-info))
@@ -1616,13 +1666,13 @@ bootstrapping.
           (comparison-description nopt gf-nopt)))
        (unless (eq (or keysp restp) gf-key/rest-p)
          (lose
-          "the method and generic function differ in whether they accept~%~
+          "the method and generic function differ in whether they accept~_~
            &REST or &KEY arguments."))
        (when (consp gf-keywords)
          (unless (or (and restp (not keysp))
                      allow-other-keys-p
                      (every (lambda (k) (memq k keywords)) gf-keywords))
-           (lose "the method does not accept each of the &KEY arguments~%~
+           (lose "the method does not accept each of the &KEY arguments~2I~_~
                   ~S."
                  gf-keywords)))))))
 
@@ -1746,7 +1796,7 @@ bootstrapping.
     (!bootstrap-set-slot 'standard-generic-function
                         fin
                         'source
-                        *load-truename*)
+                        *load-pathname*)
     (set-fun-name fin spec)
     (let ((arg-info (make-arg-info)))
       (setf (early-gf-arg-info fin) arg-info)