1.0.19.16: derive the type of (AREF (THE STRING X) Y) as CHARACTER

[sbcl.git] / contrib / sb-grovel / def-to-lisp.lisp

diff --git a/contrib/sb-grovel/def-to-lisp.lisp b/contrib/sb-grovel/def-to-lisp.lisp
index 7549b86..585a84a 100644 (file)
--- a/contrib/sb-grovel/def-to-lisp.lisp
+++ b/contrib/sb-grovel/def-to-lisp.lisp
@@ -16,6 +16,7 @@
 
 (defun c-escape (string &optional (dangerous-chars '(#\")) (escape-char #\\))
   "Escape DANGEROUS-CHARS in STRING, with ESCAPE-CHAR."
+  (declare (simple-string string))
   (coerce (loop for c across string
                 if (member c dangerous-chars) collect escape-char
                 collect c)