1.0.5.46: improve handling of non-standard subclasses of SB-MOP:SPECIALIZER

[sbcl.git] / src / pcl / methods.lisp

diff --git a/src/pcl/methods.lisp b/src/pcl/methods.lisp
index 849e499..d9e2ac8 100644 (file)
--- a/src/pcl/methods.lisp
+++ b/src/pcl/methods.lisp
@@ -629,6 +629,22 @@
 (defmethod specializer-class ((specializer eql-specializer))
   (class-of (slot-value specializer 'object)))
 
+;;; KLUDGE: this is needed to allow for user-defined specializers in
+;;; RAISE-METATYPE; however, the list of methods is maintained by
+;;; hand, which is error-prone.  We can't just add a method to
+;;; SPECIALIZER-CLASS, or at least not with confidence, as that
+;;; function is used elsewhere in PCL.  -- CSR, 2007-05-10
+(defmethod specializer-class-or-nil ((specializer specializer))
+  nil)
+(defmethod specializer-class-or-nil ((specializer eql-specializer))
+  (specializer-class specializer))
+(defmethod specializer-class-or-nil ((specializer class))
+  (specializer-class specializer))
+(defmethod specializer-class-or-nil ((specializer class-eq-specializer))
+  (specializer-class specializer))
+(defmethod specializer-class-or-nil ((specializer class-prototype-specializer))
+  (specializer-class specializer))
+
 (defun error-need-at-least-n-args (function n)
   (error 'simple-program-error
          :format-control "~@<The function ~2I~_~S ~I~_requires ~
@@ -1337,11 +1353,12 @@
     (let* ((name (generic-function-name generic-function))
            (arg-info (gf-arg-info generic-function))
            (metatypes (arg-info-metatypes arg-info))
+           (nargs (length metatypes))
            (applyp (arg-info-applyp arg-info))
-           (fmc-arg-info (cons (length metatypes) applyp))
+           (fmc-arg-info (cons nargs applyp))
            (arglist (if function-p
-                        (make-dfun-lambda-list metatypes applyp)
-                        (make-fast-method-call-lambda-list metatypes applyp))))
+                        (make-dfun-lambda-list nargs applyp)
+                        (make-fast-method-call-lambda-list nargs applyp))))
       (multiple-value-bind (cfunction constants)
           (get-fun1 `(lambda
                       ,arglist
@@ -1349,7 +1366,7 @@
                           `((declare (ignore .pv-cell. .next-method-call.))))
                       (locally (declare #.*optimize-speed*)
                                (let ((emf ,net))
-                                 ,(make-emf-call metatypes applyp 'emf))))
+                                 ,(make-emf-call nargs applyp 'emf))))
                     #'net-test-converter
                     #'net-code-converter
                     (lambda (form)