Stop emitting references to inexistant #n= forms in the pretty printer

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

diff --git a/tests/pprint.impure.lisp b/tests/pprint.impure.lisp
index 4e6d8a3..39884e0 100644 (file)
--- a/tests/pprint.impure.lisp
+++ b/tests/pprint.impure.lisp
@@ -291,5 +291,11 @@
     (when errors
       (error "Can't PPRINT imporper lists: ~a" errors))))
 
+(with-test (:name :pprint-circular-backq-comma)
+  ;; LP 1161218 reported by James M. Lawrence
+  (let ((string (write-to-string '(let ((#1=#:var '(99)))
+                                   `(progn ,@(identity #1#)))
+                                 :circle t :pretty t)))
+    (assert (not (search "#2#" string)))))
 \f
 ;;; success