From: Carl Worth <cworth@cworth.org>
Date: Wed, 18 Nov 2009 01:53:54 +0000 (-0800)
Subject: notmuch show: Detect an internal error if a thread has no messages.
X-Git-Tag: 0.1~466
X-Git-Url: https://git.notmuchmail.org/git?p=notmuch;a=commitdiff_plain;h=58b659f893084fde2c79b8d0ce053b3bc4946b7c

notmuch show: Detect an internal error if a thread has no messages.

This really should be impossible---if there are no messages, then what
was the thread object created from? During recent debugging, it was
useful to have this error detected and reported.
---

diff --git a/notmuch-show.c b/notmuch-show.c
index 7749dbc4..a3f354ed 100644
--- a/notmuch-show.c
+++ b/notmuch-show.c
@@ -211,6 +211,10 @@ notmuch_show_command (void *ctx, unused (int argc), unused (char *argv[]))
 
 	messages = notmuch_thread_get_toplevel_messages (thread);
 
+	if (messages == NULL)
+	    INTERNAL_ERROR ("Thread %s has no toplevel messages.\n",
+			    notmuch_thread_get_thread_id (thread));
+
 	show_messages (ctx, messages, 0);
 
 	notmuch_thread_destroy (thread);