From 6f32f373e9506ea880607427e41d58ccde6d1693 Mon Sep 17 00:00:00 2001
From: Ryan Culpepper <ryanc@racket-lang.org>
Date: Wed, 17 Nov 2010 13:25:15 -0700
Subject: [PATCH] macro-stepper: extra guard in on-demand id-only popup submenu

original commit: eb1c164aca02f575c5903d1e39382fefb8c7ee59
---
 collects/macro-debugger/syntax-browser/keymap.rkt | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/collects/macro-debugger/syntax-browser/keymap.rkt b/collects/macro-debugger/syntax-browser/keymap.rkt
index 6544f7d..4949134 100644
--- a/collects/macro-debugger/syntax-browser/keymap.rkt
+++ b/collects/macro-debugger/syntax-browser/keymap.rkt
@@ -118,7 +118,7 @@
                (demand-callback
                 (lambda (i)
                   (let ([stx (selected-syntax)])
-                    (when stx
+                    (when (identifier? stx)
                       (send i set-label
                             (format "Format ~s ~a" (syntax-e stx) (cadr sym+desc)))))))
                (callback