0.9.13.34: Class objects as specializers

[sbcl.git] / tests / clos.impure.lisp

diff --git a/tests/clos.impure.lisp b/tests/clos.impure.lisp
index 100407d..46749be 100644 (file)
--- a/tests/clos.impure.lisp
+++ b/tests/clos.impure.lisp
@@ -1231,4 +1231,65 @@
 (let ((instance (make-instance 'slot-type-subclass)))
   (setf (slot-value instance 'slot) 3))
 \f
+;;; ctors where there's a non-standard SHARED-INITIALIZE method and an
+;;; initarg which isn't self-evaluating (kpreid on #lisp 2006-01-29)
+(defclass kpreid-enode ()
+  ((slot :initarg not-a-keyword)))
+(defmethod shared-initialize ((o kpreid-enode) slots &key &allow-other-keys)
+  (call-next-method))
+(defun make-kpreid-enode ()
+  (make-instance 'kpreid-enode 'not-a-keyword 3))
+(with-test (:name (:ctor :non-keyword-initarg))
+  (let ((x (make-kpreid-enode))
+        (y (make-kpreid-enode)))
+    (= (slot-value x 'slot) (slot-value y 'slot))))
+\f
+;;; defining a class hierarchy shouldn't lead to spurious classoid
+;;; errors on TYPEP questions (reported by Tim Moore on #lisp
+;;; 2006-03-10)
+(defclass backwards-2 (backwards-1) (a b))
+(defclass backwards-3 (backwards-2) ())
+(defun typep-backwards-3 (x)
+  (typep x 'backwards-3))
+(defclass backwards-1 () (a b))
+(assert (not (typep-backwards-3 1)))
+(assert (not (typep-backwards-3 (make-instance 'backwards-2))))
+(assert (typep-backwards-3 (make-instance 'backwards-3)))
+\f
+(defgeneric remove-method-1 (x)
+  (:method ((x integer)) (1+ x)))
+(defgeneric remove-method-2 (x)
+  (:method ((x integer)) (1- x)))
+(assert (eq #'remove-method-1
+            (remove-method #'remove-method-1
+                           (find-method #'remove-method-2
+                                        nil
+                                        (list (find-class 'integer))))))
+(assert (= (remove-method-1 3) 4))
+(assert (= (remove-method-2 3) 2))
+
+;;; ANSI doesn't require these restarts, but now that we have them we
+;;; better test them too.
+(defclass slot-unbound-restart-test () ((x)))
+(let ((test (make-instance 'slot-unbound-restart-test)))
+  (assert (not (slot-boundp test 'x)))
+  (assert (= 42 (handler-bind ((unbound-slot (lambda (c) (use-value 42 c))))
+                  (slot-value test 'x))))
+  (assert (not (slot-boundp test 'x)))
+  (assert (= 13 (handler-bind ((unbound-slot (lambda (c) (store-value 13 c))))
+                  (slot-value test 'x))))
+  (assert (= 13 (slot-value test 'x))))
+
+;;; Using class instances as specializers, reported by Pascal Costanza, ref CLHS 7.6.2
+(defclass class-as-specializer-test ()
+   ())
+(eval `(defmethod class-as-specializer-test1 ((x ,(find-class 'class-as-specializer-test)))
+          'foo))
+(assert (eq 'foo (class-as-specializer-test1 (make-instance 'class-as-specializer-test))))
+(funcall (compile nil `(lambda ()
+                         (defmethod class-as-specializer-test2 ((x ,(find-class 'class-as-specializer-test)))
+                           'bar))))
+(assert (eq 'bar (class-as-specializer-test2 (make-instance 'class-as-specializer-test))))
+
+\f
 ;;;; success