0.7.4.31:
[sbcl.git] / src / pcl / boot.lisp
index 866f813..6f4177c 100644 (file)
@@ -90,7 +90,6 @@ bootstrapping.
 (declaim (notinline make-a-method
                    add-named-method
                    ensure-generic-function-using-class
-
                    add-method
                    remove-method))
 
@@ -105,17 +104,14 @@ bootstrapping.
 ;;; early definition. Do this in a way that makes sure that if we
 ;;; redefine one of the early definitions the redefinition will take
 ;;; effect. This makes development easier.
-(eval-when (:load-toplevel :execute)
-  
 (dolist (fns *!early-functions*)
   (let ((name (car fns))
        (early-name (cadr fns)))
     (setf (gdefinition name)
-            (set-function-name
+            (set-fun-name
              (lambda (&rest args)
               (apply (fdefinition early-name) args))
              name))))
-) ; EVAL-WHEN
 
 ;;; *!GENERIC-FUNCTION-FIXUPS* is used by !FIX-EARLY-GENERIC-FUNCTIONS
 ;;; to convert the few functions in the bootstrap which are supposed
@@ -134,12 +130,12 @@ bootstrapping.
       (standard-generic-function t t)
       real-get-method))
     (ensure-generic-function-using-class
-     ((generic-function function-name
+     ((generic-function fun-name
                        &key generic-function-class environment
                        &allow-other-keys)
       (generic-function t)
       real-ensure-gf-using-class--generic-function)
-     ((generic-function function-name
+     ((generic-function fun-name
                        &key generic-function-class environment
                        &allow-other-keys)
       (null t)
@@ -159,14 +155,16 @@ bootstrapping.
       (generic-function standard-method-combination t)
       standard-compute-effective-method))))
 \f
-(defmacro defgeneric (function-name lambda-list &body options)
-  (expand-defgeneric function-name lambda-list options))
-
-(defun expand-defgeneric (function-name lambda-list options)
+(defmacro defgeneric (fun-name lambda-list &body options)
+  (declare (type list lambda-list))
+  (unless (legal-fun-name-p fun-name)
+    (error 'simple-program-error
+          :format-control "illegal generic function name ~S"
+          :format-arguments (list fun-name)))
   (let ((initargs ())
        (methods ()))
     (flet ((duplicate-option (name)
-            (error 'sb-kernel:simple-program-error
+            (error 'simple-program-error
                    :format-control "The option ~S appears more than once."
                    :format-arguments (list name)))
           (expand-method-definition (qab) ; QAB = qualifiers, arglist, body
@@ -174,12 +172,8 @@ bootstrapping.
                    (arglist (elt qab arglist-pos))
                    (qualifiers (subseq qab 0 arglist-pos))
                    (body (nthcdr (1+ arglist-pos) qab)))
-              (when (not (equal (cadr (getf initargs :method-combination))
-                                qualifiers))
-                (error "bad method specification in DEFGENERIC ~A~%~
-                        -- qualifier mismatch for lambda list ~A"
-                       function-name arglist))
-              `(defmethod ,function-name ,@qualifiers ,arglist ,@body))))
+              `(push (defmethod ,fun-name ,@qualifiers ,arglist ,@body)
+                      (generic-function-initial-methods #',fun-name)))))
       (macrolet ((initarg (key) `(getf initargs ,key)))
        (dolist (option options)
          (let ((car-option (car option)))
@@ -192,7 +186,7 @@ bootstrapping.
                   (setf (initarg car-option)
                         `',(cdr option))))
              ((:documentation :generic-function-class :method-class)
-              (unless (sb-int:proper-list-of-length-p option 2)
+              (unless (proper-list-of-length-p option 2)
                 (error "bad list length for ~S" option))
               (if (initarg car-option)
                   (duplicate-option car-option)
@@ -202,7 +196,7 @@ bootstrapping.
              (t
               ;; ANSI requires that unsupported things must get a
               ;; PROGRAM-ERROR.
-              (error 'sb-kernel:simple-program-error
+              (error 'simple-program-error
                      :format-control "unsupported option ~S"
                      :format-arguments (list option))))))
 
@@ -211,28 +205,32 @@ bootstrapping.
                `',(initarg :declarations))))
       `(progn
         (eval-when (:compile-toplevel :load-toplevel :execute)
-          (compile-or-load-defgeneric ',function-name))
-         (load-defgeneric ',function-name ',lambda-list ,@initargs)
-        ,@(mapcar #'expand-method-definition methods)
-        `,(function ,function-name)))))
-
-(defun compile-or-load-defgeneric (function-name)
-  (sb-kernel:proclaim-as-function-name function-name)
-  (sb-kernel:note-name-defined function-name :function)
-  (unless (eq (sb-int:info :function :where-from function-name) :declared)
-    (setf (sb-int:info :function :where-from function-name) :defined)
-    (setf (sb-int:info :function :type function-name)
+          (compile-or-load-defgeneric ',fun-name))
+         (load-defgeneric ',fun-name ',lambda-list ,@initargs)
+        ,@(mapcar #'expand-method-definition methods)
+        #',fun-name))))
+
+(defun compile-or-load-defgeneric (fun-name)
+  (sb-kernel:proclaim-as-fun-name fun-name)
+  (sb-kernel:note-name-defined fun-name :function)
+  (unless (eq (info :function :where-from fun-name) :declared)
+    (setf (info :function :where-from fun-name) :defined)
+    (setf (info :function :type fun-name)
          (sb-kernel:specifier-type 'function))))
 
-(defun load-defgeneric (function-name lambda-list &rest initargs)
-  (when (fboundp function-name)
-    (sb-kernel::style-warn "redefining ~S in DEFGENERIC" function-name))
+(defun load-defgeneric (fun-name lambda-list &rest initargs)
+  (when (fboundp fun-name)
+    (sb-kernel::style-warn "redefining ~S in DEFGENERIC" fun-name)
+    (let ((fun (fdefinition fun-name)))
+      (when (generic-function-p fun)
+        (loop for method in (generic-function-initial-methods fun)
+              do (remove-method fun method))
+        (setf (generic-function-initial-methods fun) '()))))
   (apply #'ensure-generic-function
-        function-name
-        :lambda-list lambda-list
-        :definition-source `((defgeneric ,function-name)
-                             ,*load-truename*)
-        initargs))
+         fun-name
+         :lambda-list lambda-list
+         :definition-source `((defgeneric ,fun-name) ,*load-truename*)
+         initargs))
 \f
 (defmacro defmethod (&rest args &environment env)
   (multiple-value-bind (name qualifiers lambda-list body)
@@ -340,8 +338,8 @@ bootstrapping.
                                       (class-name (class-of proto-method))
                                       'standard-method)
                                   initargs-form
-                                  (getf (getf initargs ':plist)
-                                        ':pv-table-symbol))))))))
+                                  (getf (getf initargs :plist)
+                                        :pv-table-symbol))))))))
 
 (defun interned-symbol-p (x)
   (and (symbolp x) (symbol-package x)))
@@ -351,18 +349,18 @@ bootstrapping.
                                 initargs-form &optional pv-table-symbol)
   (let (fn
        fn-lambda)
-    (if (and (interned-symbol-p (sb-int:function-name-block-name name))
+    (if (and (interned-symbol-p (fun-name-block-name name))
             (every #'interned-symbol-p qualifiers)
-            (every #'(lambda (s)
-                       (if (consp s)
-                           (and (eq (car s) 'eql)
-                                (constantp (cadr s))
-                                (let ((sv (eval (cadr s))))
-                                  (or (interned-symbol-p sv)
-                                      (integerp sv)
-                                      (and (characterp sv)
-                                           (standard-char-p sv)))))
-                           (interned-symbol-p s)))
+            (every (lambda (s)
+                     (if (consp s)
+                         (and (eq (car s) 'eql)
+                              (constantp (cadr s))
+                              (let ((sv (eval (cadr s))))
+                                (or (interned-symbol-p sv)
+                                    (integerp sv)
+                                    (and (characterp sv)
+                                         (standard-char-p sv)))))
+                         (interned-symbol-p s)))
                    specializers)
             (consp initargs-form)
             (eq (car initargs-form) 'list*)
@@ -376,7 +374,7 @@ bootstrapping.
                                     `(,(car specl) ,(eval (cadr specl)))
                                   specl))
                               specializers))
-              (mname `(,(if (eq (cadr initargs-form) ':function)
+              (mname `(,(if (eq (cadr initargs-form) :function)
                             'method 'fast-method)
                        ,name ,@qualifiers ,specls))
               (mname-sym (intern (let ((*print-pretty* nil)
@@ -385,29 +383,30 @@ bootstrapping.
                                        ;; force symbols to be printed
                                        ;; with explicit package
                                        ;; prefixes.)
-                                       (*package* sb-int:*keyword-package*))
+                                       (*package* *keyword-package*))
                                    (format nil "~S" mname)))))
-         `(eval-when (:load-toplevel :execute)
-           (defun ,mname-sym ,(cadr fn-lambda)
-             ,@(cddr fn-lambda))
-           ,(make-defmethod-form-internal
-             name qualifiers `',specls
-             unspecialized-lambda-list method-class-name
-             `(list* ,(cadr initargs-form)
-                     #',mname-sym
-                     ,@(cdddr initargs-form))
-             pv-table-symbol)))
-      (make-defmethod-form-internal
-       name qualifiers
-         `(list ,@(mapcar #'(lambda (specializer)
-                              (if (consp specializer)
-                                  ``(,',(car specializer)
-                                     ,,(cadr specializer))
-                                  `',specializer))
-                           specializers))
-         unspecialized-lambda-list method-class-name
-         initargs-form
-         pv-table-symbol))))
+         `(progn
+            (defun ,mname-sym ,(cadr fn-lambda)
+              ,@(cddr fn-lambda))
+            ,(make-defmethod-form-internal
+              name qualifiers `',specls
+              unspecialized-lambda-list method-class-name
+              `(list* ,(cadr initargs-form)
+                      #',mname-sym
+                      ,@(cdddr initargs-form))
+              pv-table-symbol)))
+       (make-defmethod-form-internal
+        name qualifiers
+        `(list ,@(mapcar (lambda (specializer)
+                           (if (consp specializer)
+                               ``(,',(car specializer)
+                                  ,,(cadr specializer))
+                               `',specializer))
+                         specializers))
+        unspecialized-lambda-list
+        method-class-name
+        initargs-form
+        pv-table-symbol))))
 
 (defun make-defmethod-form-internal
     (name qualifiers specializers-form unspecialized-lambda-list
@@ -447,7 +446,24 @@ bootstrapping.
        (extract-declarations body env)
       (values `(lambda ,unspecialized-lambda-list
                 ,@(when documentation `(,documentation))
-                (declare (%method-name ,(list name qualifiers specializers)))
+                ;; (Old PCL code used a somewhat different style of
+                ;; list for %METHOD-NAME values. Our names use
+                ;; ,@QUALIFIERS instead of ,QUALIFIERS so that the
+                ;; method names look more like what you see in a
+                ;; DEFMETHOD form.)
+                ;;
+                ;; FIXME: As of sbcl-0.7.0.6, code elsewhere, at
+                ;; least the code to set up named BLOCKs around the
+                ;; bodies of methods, depends on the function's base
+                ;; name being the first element of the %METHOD-NAME
+                ;; list. It would be good to remove this dependency,
+                ;; perhaps by building the BLOCK here, or by using
+                ;; 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)).
+                (declare (%method-name (,name
+                                        ,@qualifiers
+                                        ,specializers)))
                 (declare (%method-lambda-list ,@lambda-list))
                 ,@declarations
                 ,@real-body)
@@ -456,7 +472,8 @@ bootstrapping.
 (defun real-make-method-initargs-form (proto-gf proto-method
                                       method-lambda initargs env)
   (declare (ignore proto-gf proto-method))
-  (unless (and (consp method-lambda) (eq (car method-lambda) 'lambda))
+  (unless (and (consp method-lambda)
+              (eq (car method-lambda) 'lambda))
     (error "The METHOD-LAMBDA argument to MAKE-METHOD-FUNCTION, ~S, ~
            is not a lambda form."
           method-lambda))
@@ -552,7 +569,7 @@ bootstrapping.
                  ;; These declarations seem to be used by PCL to pass
                  ;; information to itself; when I tried to delete 'em
                  ;; ca. 0.6.10 it didn't work. I'm not sure how
-                 ;; they work, but note the (VARIABLE-DECLARATION '%CLASS ..)
+                 ;; they work, but note the (VAR-DECLARATION '%CLASS ..)
                  ;; expression in CAN-OPTIMIZE-ACCESS1. -- WHN 2000-12-30
                  ,@(remove nil
                            (mapcar (lambda (a s) (and (symbolp s)
@@ -596,8 +613,7 @@ bootstrapping.
                   (declare (ignorable ,@required-parameters))
                   ,class-declarations
                   ,@declarations
-                  (block ,(sb-int:function-name-block-name
-                           generic-function-name)
+                  (block ,(fun-name-block-name generic-function-name)
                     ,@real-body)))
               (constant-value-p (and (null (cdr real-body))
                                      (constantp (car real-body))))
@@ -686,10 +702,10 @@ bootstrapping.
                                          rest-arg
                                          &rest lmf-options)
                                         &body body)
- `(bind-fast-lexical-method-macros (,args ,rest-arg ,next-method-call)
-    (bind-lexical-method-functions (,@lmf-options)
-      (bind-args (,(nthcdr (length args) lambda-list) ,rest-arg)
-       ,@body))))
+  `(bind-fast-lexical-method-macros (,args ,rest-arg ,next-method-call)
+     (bind-lexical-method-functions (,@lmf-options)
+       (bind-args (,(nthcdr (length args) lambda-list) ,rest-arg)
+        ,@body))))
 
 (defmacro bind-simple-lexical-method-macros ((method-args next-methods)
                                             &body body)
@@ -710,7 +726,7 @@ bootstrapping.
                `(not (null .next-method.))))
      ,@body))
 
-(defstruct method-call
+(defstruct (method-call (:copier nil))
   (function #'identity :type function)
   call-method-args)
 
@@ -731,7 +747,7 @@ bootstrapping.
                             `(list ,@required-args+rest-arg))
                        (method-call-call-method-args ,method-call)))
 
-(defstruct fast-method-call
+(defstruct (fast-method-call (:copier nil))
   (function #'identity :type function)
   pv-cell
   next-method-call
@@ -748,17 +764,14 @@ bootstrapping.
                (fast-method-call-next-method-call ,method-call)
                ,@required-args+rest-arg))
 
-(defstruct fast-instance-boundp
+(defstruct (fast-instance-boundp (:copier nil))
   (index 0 :type fixnum))
 
 #-sb-fluid (declaim (sb-ext:freeze-type fast-instance-boundp))
 
 (eval-when (:compile-toplevel :load-toplevel :execute)
-
-(defvar *allow-emf-call-tracing-p* nil)
-(defvar *enable-emf-call-tracing-p* #-testing nil #+testing t)
-
-) ; EVAL-WHEN
+  (defvar *allow-emf-call-tracing-p* nil)
+  (defvar *enable-emf-call-tracing-p* #-sb-show nil #+sb-show t))
 \f
 ;;;; effective method functions
 
@@ -808,11 +821,25 @@ bootstrapping.
                                                &rest required-args+rest-arg)
   (unless (constantp restp)
     (error "The RESTP argument is not constant."))
+  ;; FIXME: The RESTP handling here is confusing and maybe slightly
+  ;; broken if RESTP evaluates to a non-self-evaluating form. E.g. if
+  ;;   (INVOKE-EFFECTIVE-METHOD-FUNCTION EMF '(ERROR "gotcha") ...)
+  ;; then TRACE-EMF-CALL-CALL-INTERNAL might die on a gotcha error.
   (setq restp (eval restp))
   `(progn
      (trace-emf-call ,emf ,restp (list ,@required-args+rest-arg))
      (cond ((typep ,emf 'fast-method-call)
-            (invoke-fast-method-call ,emf ,@required-args+rest-arg))
+           (invoke-fast-method-call ,emf ,@required-args+rest-arg))
+          ;; "What," you may wonder, "do these next two clauses do?"
+          ;; In that case, you are not a PCL implementor, for they
+          ;; considered this to be self-documenting.:-| Or CSR, for
+          ;; that matter, since he can also figure it out by looking
+          ;; at it without breaking stride. For the rest of us,
+          ;; though: From what the code is doing with .SLOTS. and
+          ;; whatnot, evidently it's implementing SLOT-VALUEish and
+          ;; GET-SLOT-VALUEish things. Then we can reason backwards
+          ;; and conclude that setting EMF to a FIXNUM is an
+          ;; optimized way to represent these slot access operations.
           ,@(when (and (null restp) (= 1 (length required-args+rest-arg)))
               `(((typep ,emf 'fixnum)
                  (let* ((.slots. (get-slots-or-nil
@@ -827,18 +854,12 @@ bootstrapping.
                  (let ((.new-value. ,(car required-args+rest-arg))
                        (.slots. (get-slots-or-nil
                                  ,(car required-args+rest-arg))))
-                    (when .slots.
-                         (setf (clos-slots-ref .slots. ,emf) .new-value.))))))
-          #||
-          ,@(when (and (null restp) (= 1 (length required-args+rest-arg)))
-              `(((typep ,emf 'fast-instance-boundp)
-                 (let ((.slots. (get-slots-or-nil
-                                 ,(car required-args+rest-arg))))
-                   (and .slots.
-                        (not (eq (clos-slots-ref
-                                  .slots. (fast-instance-boundp-index ,emf))
-                                 +slot-unbound+)))))))
-          ||#
+                   (when .slots.
+                     (setf (clos-slots-ref .slots. ,emf) .new-value.))))))
+          ;; (In cmucl-2.4.8 there was a commented-out third ,@(WHEN
+          ;; ...) clause here to handle SLOT-BOUNDish stuff. Since
+          ;; there was no explanation and presumably the code is 10+
+          ;; years stale, I simply deleted it. -- WHN)
           (t
            (etypecase ,emf
              (method-call
@@ -912,52 +933,85 @@ bootstrapping.
     (fast-method-call (let* ((arg-info (gf-arg-info gf))
                             (nreq (arg-info-number-required arg-info))
                             (restp (arg-info-applyp arg-info)))
-                       #'(lambda (&rest args)
-                           (trace-emf-call emf t args)
-                           (apply (fast-method-call-function emf)
-                                  (fast-method-call-pv-cell emf)
-                                  (fast-method-call-next-method-call emf)
-                                  (if restp
-                                      (let* ((rest-args (nthcdr nreq args))
-                                             (req-args (ldiff args
-                                                              rest-args)))
-                                        (nconc req-args rest-args))
-                                      args)))))
-    (method-call #'(lambda (&rest args)
-                    (trace-emf-call emf t args)
-                    (apply (method-call-function emf)
-                           args
-                           (method-call-call-method-args emf))))
+                       (lambda (&rest args)
+                         (trace-emf-call emf t args)
+                         (apply (fast-method-call-function emf)
+                                (fast-method-call-pv-cell emf)
+                                (fast-method-call-next-method-call emf)
+                                (if restp
+                                    (let* ((rest-args (nthcdr nreq args))
+                                           (req-args (ldiff args
+                                                            rest-args)))
+                                      (nconc req-args rest-args))
+                                    args)))))
+    (method-call (lambda (&rest args)
+                  (trace-emf-call emf t args)
+                  (apply (method-call-function emf)
+                         args
+                         (method-call-call-method-args emf))))
     (function emf)))
 \f
 (defmacro bind-fast-lexical-method-macros ((args rest-arg next-method-call)
                                           &body body)
-  `(macrolet ((call-next-method-bind (&body body)
-               `(let () ,@body))
+  `(macrolet ((narrowed-emf (emf)
+               ;; INVOKE-EFFECTIVE-METHOD-FUNCTION has code in it to
+               ;; dispatch on the possibility that EMF might be of
+               ;; type FIXNUM (as an optimized representation of a
+               ;; slot accessor). But as far as I (WHN 2002-06-11)
+               ;; can tell, it's impossible for such a representation
+               ;; to end up as .NEXT-METHOD-CALL. By reassuring
+               ;; INVOKE-E-M-F that when called from this context
+               ;; it needn't worry about the FIXNUM case, we can
+               ;; keep those cases from being compiled, which is
+               ;; good both because it saves bytes and because it
+               ;; avoids annoying type mismatch compiler warnings.
+               ;;
+                ;; KLUDGE: In sbcl-0.7.4.29, the compiler's type
+               ;; system isn't smart enough about NOT and intersection
+               ;; types to benefit from a (NOT FIXNUM) declaration
+               ;; here. -- WHN 2002-06-12
+               ;;
+               ;; FIXME: Might the FUNCTION type be omittable here,
+               ;; leaving only METHOD-CALLs? Failing that, could this
+               ;; be documented somehow? (It'd be nice if the types
+               ;; involved could be understood without solving the
+                ;; halting problem.)
+                `(the (or function method-call fast-method-call)
+                  ,emf))
+             (call-next-method-bind (&body body)
+               `(let () ,@body))
              (call-next-method-body (cnm-args)
-               `(if ,',next-method-call
-                    ,(if (and (null ',rest-arg)
-                              (consp cnm-args)
-                              (eq (car cnm-args) 'list))
-                         `(invoke-effective-method-function
-                           ,',next-method-call nil
-                           ,@(cdr cnm-args))
-                         (let ((call `(invoke-effective-method-function
-                                       ,',next-method-call
-                                       ,',(not (null rest-arg))
-                                       ,@',args
-                                       ,@',(when rest-arg `(,rest-arg)))))
-                           `(if ,cnm-args
-                                (bind-args ((,@',args
-                                             ,@',(when rest-arg
-                                                   `(&rest ,rest-arg)))
-                                            ,cnm-args)
-                                           ,call)
-                                ,call)))
-                    (error "no next method")))
+               `(if ,',next-method-call
+                 ,(locally
+                   ;; This declaration suppresses a "deleting
+                   ;; unreachable code" note for the following IF when
+                   ;; REST-ARG is NIL. It is not nice for debugging
+                   ;; SBCL itself, but at least it keeps us from
+                   ;; annoying users.
+                   (declare (optimize (inhibit-warnings 3)))
+                   (if (and (null ',rest-arg)
+                            (consp cnm-args)
+                            (eq (car cnm-args) 'list))
+                       `(invoke-effective-method-function
+                         (narrowed-emf ,',next-method-call)
+                        nil
+                         ,@(cdr cnm-args))
+                       (let ((call `(invoke-effective-method-function
+                                     (narrowed-emf ,',next-method-call)
+                                     ,',(not (null rest-arg))
+                                     ,@',args
+                                     ,@',(when rest-arg `(,rest-arg)))))
+                         `(if ,cnm-args
+                           (bind-args ((,@',args
+                                        ,@',(when rest-arg
+                                             `(&rest ,rest-arg)))
+                                       ,cnm-args)
+                            ,call)
+                           ,call))))
+                 (error "no next method")))
              (next-method-p-body ()
-               `(not (null ,',next-method-call))))
-     ,@body))
+               `(not (null ,',next-method-call))))
+    ,@body))
 
 (defmacro bind-lexical-method-functions
     ((&key call-next-method-p next-method-p-p closurep applyp)
@@ -966,8 +1020,8 @@ bootstrapping.
              (null closurep)
              (null applyp))
         `(let () ,@body))
-        ((and (null closurep)
-              (null applyp))
+       ((and (null closurep)
+             (null applyp))
         ;; OK to use MACROLET, and all args are mandatory
         ;; (else APPLYP would be true).
         `(call-next-method-bind
@@ -1021,14 +1075,14 @@ bootstrapping.
                                                      ,(cadr var)))))))
                   (rest `((,var ,args-tail)))
                   (key (cond ((not (consp var))
-                              `((,var (get-key-arg ,(sb-int:keywordicate var)
+                              `((,var (get-key-arg ,(keywordicate var)
                                                    ,args-tail))))
                              ((null (cddr var))
                               (multiple-value-bind (keyword variable)
                                   (if (consp (car var))
                                       (values (caar var)
                                               (cadar var))
-                                      (values (sb-int:keywordicate (car var))
+                                      (values (keywordicate (car var))
                                               (car var)))
                                 `((,key (get-key-arg1 ',keyword ,args-tail))
                                   (,variable (if (consp ,key)
@@ -1039,7 +1093,7 @@ bootstrapping.
                                   (if (consp (car var))
                                       (values (caar var)
                                               (cadar var))
-                                      (values (sb-int:keywordicate (car var))
+                                      (values (keywordicate (car var))
                                               (car var)))
                                 `((,key (get-key-arg1 ',keyword ,args-tail))
                                   (,(caddr var) ,key)
@@ -1071,7 +1125,7 @@ bootstrapping.
        (next-method-p-p nil))     ; flag indicating that NEXT-METHOD-P
                                   ; should be in the method definition
     (flet ((walk-function (form context env)
-            (cond ((not (eq context ':eval)) form)
+            (cond ((not (eq context :eval)) form)
                   ;; FIXME: Jumping to a conclusion from the way it's used
                   ;; above, perhaps CONTEXT should be called SITUATION
                   ;; (after the term used in the ANSI specification of
@@ -1097,8 +1151,9 @@ bootstrapping.
                   ((and (memq (car form)
                                '(slot-value set-slot-value slot-boundp))
                         (constantp (caddr form)))
-                     (let ((parameter
-                            (can-optimize-access form required-parameters env)))
+                     (let ((parameter (can-optimize-access form
+                                                          required-parameters
+                                                          env)))
                       (let ((fun (ecase (car form)
                                    (slot-value #'optimize-slot-value)
                                    (set-slot-value #'optimize-set-slot-value)
@@ -1129,7 +1184,7 @@ bootstrapping.
                next-method-p-p)))))
 
 (defun generic-function-name-p (name)
-  (and (sb-int:legal-function-name-p name)
+  (and (legal-fun-name-p name)
        (gboundp name)
        (if (eq *boot-state* 'complete)
           (standard-generic-function-p (gdefinition name))
@@ -1190,10 +1245,9 @@ bootstrapping.
 (defun load-defmethod
     (class name quals specls ll initargs &optional pv-table-symbol)
   (setq initargs (copy-tree initargs))
-  (let ((method-spec (or (getf initargs ':method-spec)
+  (let ((method-spec (or (getf initargs :method-spec)
                         (make-method-spec name quals specls))))
-    (setf (getf initargs ':method-spec) method-spec)
-    (record-definition 'method method-spec)
+    (setf (getf initargs :method-spec) method-spec)
     (load-defmethod-internal class name quals specls
                             ll initargs pv-table-symbol)))
 
@@ -1201,7 +1255,7 @@ bootstrapping.
     (method-class gf-spec qualifiers specializers lambda-list
                  initargs pv-table-symbol)
   (when pv-table-symbol
-    (setf (getf (getf initargs ':plist) :pv-table-symbol)
+    (setf (getf (getf initargs :plist) :pv-table-symbol)
          pv-table-symbol))
   (when (and (eq *boot-state* 'complete)
             (fboundp gf-spec))
@@ -1238,12 +1292,12 @@ bootstrapping.
   `(method ,gf-spec ,@qualifiers ,unparsed-specializers))
 
 (defun initialize-method-function (initargs &optional return-function-p method)
-  (let* ((mf (getf initargs ':function))
-        (method-spec (getf initargs ':method-spec))
-        (plist (getf initargs ':plist))
-        (pv-table-symbol (getf plist ':pv-table-symbol))
+  (let* ((mf (getf initargs :function))
+        (method-spec (getf initargs :method-spec))
+        (plist (getf initargs :plist))
+        (pv-table-symbol (getf plist :pv-table-symbol))
         (pv-table nil)
-        (mff (getf initargs ':fast-function)))
+        (mff (getf initargs :fast-function)))
     (flet ((set-mf-property (p v)
             (when mf
               (setf (method-function-get mf p) v))
@@ -1251,7 +1305,7 @@ bootstrapping.
               (setf (method-function-get mff p) v))))
       (when method-spec
        (when mf
-         (setq mf (set-function-name mf method-spec)))
+         (setq mf (set-fun-name mf method-spec)))
        (when mff
          (let ((name `(,(or (get (car method-spec) 'fast-sym)
                             (setf (get (car method-spec) 'fast-sym)
@@ -1267,7 +1321,7 @@ bootstrapping.
                                                   (car method-spec))
                                           *pcl-package*)))
                         ,@(cdr method-spec))))
-           (set-function-name mff name)
+           (set-fun-name mff name)
            (unless mf
              (set-mf-property :name name)))))
       (when plist
@@ -1287,16 +1341,17 @@ bootstrapping.
 \f
 (defun analyze-lambda-list (lambda-list)
   (flet (;; FIXME: Is this redundant with SB-C::MAKE-KEYWORD-FOR-ARG?
-        (parse-keyword-argument (arg)
+        (parse-key-arg (arg)
           (if (listp arg)
               (if (listp (car arg))
                   (caar arg)
-                  (sb-int:keywordicate (car arg)))
-              (sb-int:keywordicate arg))))
+                  (keywordicate (car arg)))
+              (keywordicate arg))))
     (let ((nrequired 0)
          (noptional 0)
          (keysp nil)
          (restp nil)
+          (nrest 0)
          (allow-other-keys-p nil)
          (keywords ())
          (keyword-parameters ())
@@ -1317,9 +1372,13 @@ bootstrapping.
            (ecase state
              (required  (incf nrequired))
              (optional  (incf noptional))
-             (key       (push (parse-keyword-argument x) keywords)
+             (key       (push (parse-key-arg x) keywords)
                         (push x keyword-parameters))
-             (rest      ()))))
+             (rest      (incf nrest)))))
+      (when (and restp (zerop nrest))
+        (error "Error in lambda-list:~%~
+                After &REST, a DEFGENERIC lambda-list ~
+                must be followed by at least one variable."))
       (values nrequired noptional keysp restp allow-other-keys-p
              (reverse keywords)
              (reverse keyword-parameters)))))
@@ -1327,7 +1386,7 @@ bootstrapping.
 (defun keyword-spec-name (x)
   (let ((key (if (atom x) x (car x))))
     (if (atom key)
-       (intern (symbol-name key) sb-int:*keyword-package*)
+       (keywordicate key)
        (car key))))
 
 (defun ftype-declaration-from-lambda-list (lambda-list name)
@@ -1335,16 +1394,16 @@ bootstrapping.
                                  keywords keyword-parameters)
       (analyze-lambda-list lambda-list)
     (declare (ignore keyword-parameters))
-    (let* ((old (sb-int:info :function :type name)) ;FIXME:FDOCUMENTATION instead?
-          (old-ftype (if (sb-kernel:function-type-p old) old nil))
-          (old-restp (and old-ftype (sb-kernel:function-type-rest old-ftype)))
+    (let* ((old (info :function :type name)) ;FIXME:FDOCUMENTATION instead?
+          (old-ftype (if (sb-kernel:fun-type-p old) old nil))
+          (old-restp (and old-ftype (sb-kernel:fun-type-rest old-ftype)))
           (old-keys (and old-ftype
                          (mapcar #'sb-kernel:key-info-name
-                                 (sb-kernel:function-type-keywords
+                                 (sb-kernel:fun-type-keywords
                                   old-ftype))))
-          (old-keysp (and old-ftype (sb-kernel:function-type-keyp old-ftype)))
+          (old-keysp (and old-ftype (sb-kernel:fun-type-keyp old-ftype)))
           (old-allowp (and old-ftype
-                           (sb-kernel:function-type-allowp old-ftype)))
+                           (sb-kernel:fun-type-allowp old-ftype)))
           (keywords (union old-keys (mapcar #'keyword-spec-name keywords))))
       `(function ,(append (make-list nrequired :initial-element t)
                          (when (plusp noptional)
@@ -1354,8 +1413,8 @@ bootstrapping.
                            '(&rest t))
                          (when (or keysp old-keysp)
                            (append '(&key)
-                                   (mapcar #'(lambda (key)
-                                               `(,key t))
+                                   (mapcar (lambda (key)
+                                             `(,key t))
                                            keywords)
                                    (when (or allow-other-keys-p old-allowp)
                                      '(&allow-other-keys)))))
@@ -1363,45 +1422,44 @@ bootstrapping.
 
 (defun defgeneric-declaration (spec lambda-list)
   (when (consp spec)
-    (setq spec (get-setf-function-name (cadr spec))))
+    (setq spec (get-setf-fun-name (cadr spec))))
   `(ftype ,(ftype-declaration-from-lambda-list lambda-list spec) ,spec))
 \f
 ;;;; early generic function support
 
 (defvar *!early-generic-functions* ())
 
-(defun ensure-generic-function (function-name
+(defun ensure-generic-function (fun-name
                                &rest all-keys
                                &key environment
                                &allow-other-keys)
   (declare (ignore environment))
-  (let ((existing (and (gboundp function-name)
-                      (gdefinition function-name))))
+  (let ((existing (and (gboundp fun-name)
+                      (gdefinition fun-name))))
     (if (and existing
             (eq *boot-state* 'complete)
             (null (generic-function-p existing)))
-       (generic-clobbers-function function-name)
+       (generic-clobbers-function fun-name)
        (apply #'ensure-generic-function-using-class
-              existing function-name all-keys))))
+              existing fun-name all-keys))))
 
-(defun generic-clobbers-function (function-name)
-  (error 'sb-kernel:simple-program-error
-        :format-control
-        "~S already names an ordinary function or a macro."
-        :format-arguments (list function-name)))
+(defun generic-clobbers-function (fun-name)
+  (error 'simple-program-error
+        :format-control "~S already names an ordinary function or a macro."
+        :format-arguments (list fun-name)))
 
 (defvar *sgf-wrapper*
   (boot-make-wrapper (early-class-size 'standard-generic-function)
                     'standard-generic-function))
 
 (defvar *sgf-slots-init*
-  (mapcar #'(lambda (canonical-slot)
-             (if (memq (getf canonical-slot :name) '(arg-info source))
-                 +slot-unbound+
-                 (let ((initfunction (getf canonical-slot :initfunction)))
-                   (if initfunction
-                       (funcall initfunction)
-                       +slot-unbound+))))
+  (mapcar (lambda (canonical-slot)
+           (if (memq (getf canonical-slot :name) '(arg-info source))
+               +slot-unbound+
+               (let ((initfunction (getf canonical-slot :initfunction)))
+                 (if initfunction
+                     (funcall initfunction)
+                     +slot-unbound+))))
          (early-collect-inheritance 'standard-generic-function)))
 
 (defvar *sgf-method-class-index*
@@ -1428,16 +1486,17 @@ bootstrapping.
   (!bootstrap-slot-index 'standard-generic-function 'dfun-state))
 
 (defstruct (arg-info
-            (:conc-name nil)
-            (:constructor make-arg-info ()))
+           (:conc-name nil)
+           (:constructor make-arg-info ())
+           (:copier nil))
   (arg-info-lambda-list :no-lambda-list)
   arg-info-precedence
   arg-info-metatypes
   arg-info-number-optional
   arg-info-key/rest-p
-  arg-info-keywords ;nil       no keyword or rest allowed
-                   ;(k1 k2 ..) each method must accept these keyword arguments
-                   ;T    must have &key or &rest
+  arg-info-keys   ;nil        no &KEY or &REST allowed
+                 ;(k1 k2 ..) Each method must accept these &KEY arguments.
+                 ;T          must have &KEY or &REST
 
   gf-info-simple-accessor-type ; nil, reader, writer, boundp
   (gf-precompute-dfun-and-emf-p nil) ; set by set-arg-info
@@ -1459,7 +1518,7 @@ bootstrapping.
   (length (arg-info-metatypes arg-info)))
 
 (defun arg-info-nkeys (arg-info)
-  (count-if #'(lambda (x) (neq x t)) (arg-info-metatypes arg-info)))
+  (count-if (lambda (x) (neq x t)) (arg-info-metatypes arg-info)))
 
 ;;; Keep pages clean by not setting if the value is already the same.
 (defmacro esetf (pos val)
@@ -1482,7 +1541,7 @@ bootstrapping.
       (setq lambda-list (gf-lambda-list gf)))
     (when (or lambda-list-p
              (and first-p
-                  (eq (arg-info-lambda-list arg-info) ':no-lambda-list)))
+                  (eq (arg-info-lambda-list arg-info) :no-lambda-list)))
       (multiple-value-bind (nreq nopt keysp restp allow-other-keys-p keywords)
          (analyze-lambda-list lambda-list)
        (when (and methods (not first-p))
@@ -1505,7 +1564,7 @@ bootstrapping.
        (esetf (arg-info-metatypes arg-info) (make-list nreq))
        (esetf (arg-info-number-optional arg-info) nopt)
        (esetf (arg-info-key/rest-p arg-info) (not (null (or keysp restp))))
-       (esetf (arg-info-keywords arg-info)
+       (esetf (arg-info-keys arg-info)
               (if lambda-list-p
                   (if allow-other-keys-p t keywords)
                   (arg-info-key/rest-p arg-info)))))
@@ -1526,20 +1585,20 @@ bootstrapping.
              method
              gf
              (apply #'format nil string args)))
-          (compare (x y)
+          (comparison-description (x y)
             (if (> x y) "more" "fewer")))
       (let ((gf-nreq (arg-info-number-required arg-info))
            (gf-nopt (arg-info-number-optional arg-info))
            (gf-key/rest-p (arg-info-key/rest-p arg-info))
-           (gf-keywords (arg-info-keywords arg-info)))
+           (gf-keywords (arg-info-keys arg-info)))
        (unless (= nreq gf-nreq)
          (lose
           "the method has ~A required arguments than the generic function."
-          (compare nreq gf-nreq)))
+          (comparison-description nreq gf-nreq)))
        (unless (= nopt gf-nopt)
          (lose
-          "the method has ~S optional arguments than the generic function."
-          (compare nopt gf-nopt)))
+          "the method has ~A optional arguments than the generic function."
+          (comparison-description nopt gf-nopt)))
        (unless (eq (or keysp restp) gf-key/rest-p)
          (error
           "The method and generic function differ in whether they accept~%~
@@ -1547,8 +1606,8 @@ bootstrapping.
        (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 keyword arguments~%~
+                     (every (lambda (k) (memq k keywords)) gf-keywords))
+           (lose "the method does not accept each of the &KEY arguments~%~
                   ~S."
                  gf-keywords)))))))
 
@@ -1632,7 +1691,8 @@ bootstrapping.
 ;;;    CAR    -   a list of the early methods on this early gf
 ;;;    CADR   -   the early discriminator code for this method
 (defun ensure-generic-function-using-class (existing spec &rest keys
-                                           &key (lambda-list nil lambda-list-p)
+                                           &key (lambda-list nil
+                                                             lambda-list-p)
                                            &allow-other-keys)
   (declare (ignore keys))
   (cond ((and existing (early-gf-p existing))
@@ -1651,7 +1711,7 @@ bootstrapping.
 
 (defun make-early-gf (spec &optional lambda-list lambda-list-p function)
   (let ((fin (allocate-funcallable-instance *sgf-wrapper* *sgf-slots-init*)))
-    (set-funcallable-instance-function
+    (set-funcallable-instance-fun
      fin
      (or function
         (if (eq spec 'print-object)
@@ -1668,7 +1728,7 @@ bootstrapping.
                         fin
                         'source
                         *load-truename*)
-    (set-function-name fin spec)
+    (set-fun-name fin spec)
     (let ((arg-info (make-arg-info)))
       (setf (early-gf-arg-info fin) arg-info)
       (when lambda-list-p
@@ -1714,7 +1774,7 @@ bootstrapping.
   (let ((arg-info (if (eq *boot-state* 'complete)
                      (gf-arg-info gf)
                      (early-gf-arg-info gf))))
-    (if (eq ':no-lambda-list (arg-info-lambda-list arg-info))
+    (if (eq :no-lambda-list (arg-info-lambda-list arg-info))
        (let ((methods (if (eq *boot-state* 'complete)
                           (generic-function-methods gf)
                           (early-gf-methods gf))))
@@ -1748,11 +1808,15 @@ bootstrapping.
         (setf (getf ,all-keys :method-combination)
               (find-method-combination (class-prototype ,gf-class)
                                        (car combin)
-                                       (cdr combin)))))))
+                                       (cdr combin)))))
+    (let ((method-class (getf ,all-keys :method-class '.shes-not-there.)))
+      (unless (eq method-class '.shes-not-there.)
+        (setf (getf ,all-keys :method-class)
+                (find-class method-class t ,env))))))
 
 (defun real-ensure-gf-using-class--generic-function
        (existing
-       function-name
+       fun-name
        &rest all-keys
        &key environment (lambda-list nil lambda-list-p)
             (generic-function-class 'standard-generic-function gf-class-p)
@@ -1764,11 +1828,11 @@ bootstrapping.
   (prog1
       (apply #'reinitialize-instance existing all-keys)
     (when lambda-list-p
-      (proclaim (defgeneric-declaration function-name lambda-list)))))
+      (proclaim (defgeneric-declaration fun-name lambda-list)))))
 
 (defun real-ensure-gf-using-class--null
        (existing
-       function-name
+       fun-name
        &rest all-keys
        &key environment (lambda-list nil lambda-list-p)
             (generic-function-class 'standard-generic-function)
@@ -1776,13 +1840,13 @@ bootstrapping.
   (declare (ignore existing))
   (real-ensure-gf-internal generic-function-class all-keys environment)
   (prog1
-      (setf (gdefinition function-name)
+      (setf (gdefinition fun-name)
            (apply #'make-instance generic-function-class
-                  :name function-name all-keys))
+                  :name fun-name all-keys))
     (when lambda-list-p
-      (proclaim (defgeneric-declaration function-name lambda-list)))))
+      (proclaim (defgeneric-declaration fun-name lambda-list)))))
 \f
-(defun get-generic-function-info (gf)
+(defun get-generic-fun-info (gf)
   ;; values   nreq applyp metatypes nkeys arg-info
   (multiple-value-bind (applyp metatypes arg-info)
       (let* ((arg-info (if (early-gf-p gf)
@@ -1793,7 +1857,7 @@ bootstrapping.
                metatypes
                arg-info))
     (values (length metatypes) applyp metatypes
-           (count-if #'(lambda (x) (neq x t)) metatypes)
+           (count-if (lambda (x) (neq x t)) metatypes)
            arg-info)))
 
 (defun early-make-a-method (class qualifiers arglist specializers initargs doc
@@ -1809,17 +1873,17 @@ bootstrapping.
     ;; Note that the use of not symbolp in this call to every should be
     ;; read as 'classp' we can't use classp itself because it doesn't
     ;; exist yet.
-    (if (every #'(lambda (s) (not (symbolp s))) specializers)
+    (if (every (lambda (s) (not (symbolp s))) specializers)
        (setq parsed specializers
-             unparsed (mapcar #'(lambda (s)
-                                  (if (eq s t) t (class-name s)))
+             unparsed (mapcar (lambda (s)
+                                (if (eq s t) t (class-name s)))
                               specializers))
        (setq unparsed specializers
              parsed ()))
     (list :early-method                  ;This is an early method dammit!
 
-         (getf initargs ':function)
-         (getf initargs ':fast-function)
+         (getf initargs :function)
+         (getf initargs :fast-function)
 
          parsed                  ;The parsed specializers. This is used
                                  ;by early-method-specializers to cache
@@ -1962,12 +2026,10 @@ bootstrapping.
       (real-get-method generic-function qualifiers specializers errorp)))
 
 (defun !fix-early-generic-functions ()
-  (sb-int:/show "entering !FIX-EARLY-GENERIC-FUNCTIONS")
   (let ((accessors nil))
     ;; Rearrange *!EARLY-GENERIC-FUNCTIONS* to speed up
     ;; FIX-EARLY-GENERIC-FUNCTIONS.
     (dolist (early-gf-spec *!early-generic-functions*)
-      (sb-int:/show early-gf-spec)
       (when (every #'early-method-standard-accessor-p
                   (early-gf-methods (gdefinition early-gf-spec)))
        (push early-gf-spec accessors)))
@@ -1990,21 +2052,21 @@ bootstrapping.
                           standard-class-p
                           funcallable-standard-class-p
                           specializerp)))
-      (sb-int:/show spec)
+      (/show spec)
       (setq *!early-generic-functions*
            (cons spec
                  (delete spec *!early-generic-functions* :test #'equal))))
 
     (dolist (early-gf-spec *!early-generic-functions*)
-      (sb-int:/show early-gf-spec)
+      (/show early-gf-spec)
       (let* ((gf (gdefinition early-gf-spec))
-            (methods (mapcar #'(lambda (early-method)
-                                 (let ((args (copy-list (fifth
-                                                         early-method))))
-                                   (setf (fourth args)
-                                         (early-method-specializers
-                                          early-method t))
-                                   (apply #'real-make-a-method args)))
+            (methods (mapcar (lambda (early-method)
+                               (let ((args (copy-list (fifth
+                                                       early-method))))
+                                 (setf (fourth args)
+                                       (early-method-specializers
+                                        early-method t))
+                                 (apply #'real-make-a-method args)))
                              (early-gf-methods gf))))
        (setf (generic-function-method-class gf) *the-class-standard-method*)
        (setf (generic-function-method-combination gf)
@@ -2012,46 +2074,46 @@ bootstrapping.
        (set-methods gf methods)))
 
     (dolist (fn *!early-functions*)
-      (sb-int:/show fn)
+      (/show fn)
       (setf (gdefinition (car fn)) (fdefinition (caddr fn))))
 
     (dolist (fixup *!generic-function-fixups*)
-      (sb-int:/show fixup)
+      (/show fixup)
       (let* ((fspec (car fixup))
             (gf (gdefinition fspec))
-            (methods (mapcar #'(lambda (method)
-                                 (let* ((lambda-list (first method))
-                                        (specializers (second method))
-                                        (method-fn-name (third method))
-                                        (fn-name (or method-fn-name fspec))
-                                        (fn (fdefinition fn-name))
-                                        (initargs
-                                         (list :function
-                                               (set-function-name
-                                                #'(lambda (args next-methods)
-                                                    (declare (ignore
-                                                              next-methods))
-                                                    (apply fn args))
-                                                `(call ,fn-name)))))
-                                   (declare (type function fn))
-                                   (make-a-method 'standard-method
-                                                  ()
-                                                  lambda-list
-                                                  specializers
-                                                  initargs
-                                                  nil)))
+            (methods (mapcar (lambda (method)
+                               (let* ((lambda-list (first method))
+                                      (specializers (second method))
+                                      (method-fn-name (third method))
+                                      (fn-name (or method-fn-name fspec))
+                                      (fn (fdefinition fn-name))
+                                      (initargs
+                                       (list :function
+                                             (set-fun-name
+                                              (lambda (args next-methods)
+                                                (declare (ignore
+                                                          next-methods))
+                                                (apply fn args))
+                                              `(call ,fn-name)))))
+                                 (declare (type function fn))
+                                 (make-a-method 'standard-method
+                                                ()
+                                                lambda-list
+                                                specializers
+                                                initargs
+                                                nil)))
                              (cdr fixup))))
        (setf (generic-function-method-class gf) *the-class-standard-method*)
        (setf (generic-function-method-combination gf)
              *standard-method-combination*)
        (set-methods gf methods))))
-  (sb-int:/show "leaving !FIX-EARLY-GENERIC-FUNCTIONS"))
+  (/show "leaving !FIX-EARLY-GENERIC-FUNCTIONS"))
 \f
 ;;; PARSE-DEFMETHOD is used by DEFMETHOD to parse the &REST argument
 ;;; into the 'real' arguments. This is where the syntax of DEFMETHOD
 ;;; is really implemented.
 (defun parse-defmethod (cdr-of-form)
-  ;;(declare (values name qualifiers specialized-lambda-list body))
+  (declare (list cdr-of-form))
   (let ((name (pop cdr-of-form))
        (qualifiers ())
        (spec-ll ()))
@@ -2062,6 +2124,7 @@ bootstrapping.
     (values name qualifiers spec-ll cdr-of-form)))
 
 (defun parse-specializers (specializers)
+  (declare (list specializers))
   (flet ((parse (spec)
           (let ((result (specializer-from-type spec)))
             (if (specializerp result)
@@ -2097,7 +2160,7 @@ bootstrapping.
              gf (method-generic-function method)
              temp (and gf (generic-function-name gf))
              name (if temp
-                      (intern-function-name
+                      (intern-fun-name
                         (make-method-spec temp
                                           (method-qualifiers method)
                                           (unparse-specializers
@@ -2115,9 +2178,9 @@ bootstrapping.
                 (and
                   (setq method (get-method gf quals specls errorp))
                   (setq name
-                        (intern-function-name (make-method-spec gf-spec
-                                                                quals
-                                                                specls))))))))
+                        (intern-fun-name (make-method-spec gf-spec
+                                                           quals
+                                                           specls))))))))
     (values gf method name)))
 \f
 (defun extract-parameters (specialized-lambda-list)
@@ -2152,17 +2215,12 @@ bootstrapping.
           (values nil arglist nil))
          ((memq arg lambda-list-keywords)
           (unless (memq arg '(&optional &rest &key &allow-other-keys &aux))
-            ;; Warn about non-standard lambda-list-keywords, but then
-            ;; go on to treat them like a standard lambda-list-keyword
-            ;; what with the warning its probably ok.
-            ;;
-            ;; FIXME: This shouldn't happen now that this is maintained
-            ;; as part of SBCL, should it? Perhaps this is now
-            ;; "internal error: unrecognized lambda-list keyword ~S"?
-            (warn "Unrecognized lambda-list keyword ~S in arglist.~%~
-                   Assuming that the symbols following it are parameters,~%~
-                   and not allowing any parameter specializers to follow it."
-                  arg))
+            ;; Now, since we try to conform to ANSI, non-standard
+             ;; lambda-list-keywords should be treated as errors.
+            (error 'simple-program-error
+                    :format-control "unrecognized lambda-list keyword ~S ~
+                     in arglist.~%"
+                   :format-arguments (list arg)))
           ;; When we are at a lambda-list keyword, the parameters
           ;; don't include the lambda-list keyword; the lambda-list
           ;; does include the lambda-list keyword; and no
@@ -2170,6 +2228,13 @@ bootstrapping.
           ;; keywords (at least for now).
           (multiple-value-bind (parameters lambda-list)
               (parse-specialized-lambda-list (cdr arglist) t)
+            (when (eq arg '&rest)
+              ;; check, if &rest is followed by a var ...
+              (when (or (null lambda-list)
+                        (memq (car lambda-list) lambda-list-keywords))
+                (error "Error in lambda-list:~%~
+                         After &REST, a DEFMETHOD lambda-list ~
+                         must be followed by at least one variable.")))
             (values parameters
                     (cons arg lambda-list)
                     ()
@@ -2190,8 +2255,7 @@ bootstrapping.
                     (cons (if (listp arg) (cadr arg) t) specializers)
                     (cons (if (listp arg) (car arg) arg) required)))))))
 \f
-(eval-when (:load-toplevel :execute)
-  (setq *boot-state* 'early))
+(setq *boot-state* 'early)
 \f
 ;;; FIXME: In here there was a #-CMU definition of SYMBOL-MACROLET
 ;;; which used %WALKER stuff. That suggests to me that maybe the code
@@ -2208,17 +2272,17 @@ bootstrapping.
           (and (symbolp instance)
                `((declare (%variable-rebinding ,in ,instance)))))
        ,in
-       (symbol-macrolet ,(mapcar #'(lambda (slot-entry)
-                                    (let ((variable-name
-                                           (if (symbolp slot-entry)
-                                               slot-entry
-                                               (car slot-entry)))
-                                          (slot-name
-                                           (if (symbolp slot-entry)
-                                               slot-entry
-                                               (cadr slot-entry))))
-                                      `(,variable-name
-                                         (slot-value ,in ',slot-name))))
+       (symbol-macrolet ,(mapcar (lambda (slot-entry)
+                                  (let ((var-name
+                                         (if (symbolp slot-entry)
+                                             slot-entry
+                                             (car slot-entry)))
+                                        (slot-name
+                                         (if (symbolp slot-entry)
+                                             slot-entry
+                                             (cadr slot-entry))))
+                                    `(,var-name
+                                      (slot-value ,in ',slot-name))))
                                 slots)
                        ,@body))))
 
@@ -2232,10 +2296,9 @@ bootstrapping.
           (and (symbolp instance)
                `((declare (%variable-rebinding ,in ,instance)))))
        ,in
-       (symbol-macrolet ,(mapcar #'(lambda (slot-entry)
-                                  (let ((variable-name (car slot-entry))
+       (symbol-macrolet ,(mapcar (lambda (slot-entry)
+                                  (let ((var-name (car slot-entry))
                                         (accessor-name (cadr slot-entry)))
-                                    `(,variable-name
-                                       (,accessor-name ,in))))
-                              slots)
+                                    `(,var-name (,accessor-name ,in))))
+                                slots)
          ,@body))))