+
+(eval-when (:compile-toplevel :load-toplevel :execute)
+ (require 'sb-cltl2)
+ (defmethod b ()))
+
+(defmacro macro ()
+ (let ((a 20))
+ (declare (special a))
+ (assert
+ (=
+ (funcall
+ (compile nil
+ (sb-mop:make-method-lambda
+ #'b
+ (find-method #'b () ())
+ '(lambda () (declare (special a)) a)
+ nil))
+ '(1) ())
+ 20))))
+
+(with-test (:name :make-method-lambda-leakage)
+ ;; lambda list of X leaks into the invocation of make-method-lambda
+ ;; during code-walking performed by make-method-lambda invoked by
+ ;; DEFMETHOD
+ (sb-cltl2:macroexpand-all '(defmethod x (a) (macro))))
+
+(with-test (:name (:defmethod-undefined-function :bug-503095))
+ (flet ((test-load (file)
+ (let (implicit-gf-warning)
+ (handler-bind
+ ((sb-ext:implicit-generic-function-warning
+ (lambda (x)
+ (setf implicit-gf-warning x)
+ (muffle-warning x)))
+ ((or warning error) #'error))
+ (load file))
+ (assert implicit-gf-warning))))
+ (multiple-value-bind (fasl warnings errorsp) (compile-file "bug-503095.lisp")
+ (unwind-protect
+ (progn (assert (and fasl (not warnings) (not errorsp)))
+ (test-load fasl))
+ (and fasl (delete-file fasl))))
+ (test-load "bug-503095-2.lisp")))
+