From 5c1ad88137f85caa0774a6e5e8371a4b50067ea7 Mon Sep 17 00:00:00 2001
From: Matthias Clasen <mclasen@redhat.com>
Date: Mon, 13 Dec 2021 14:44:40 -0500
Subject: [PATCH] builderparser: Be more robust

If a document contains no useful content,
just say so instead of crashing.
---
 tools/gtk-builder-tool-simplify.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/tools/gtk-builder-tool-simplify.c b/tools/gtk-builder-tool-simplify.c
index bb8e1ebd62..635b6332fa 100644
--- a/tools/gtk-builder-tool-simplify.c
+++ b/tools/gtk-builder-tool-simplify.c
@@ -2301,6 +2301,12 @@ simplify_file (const char *filename,
       return FALSE;
     }
 
+  if (data.root == NULL)
+    {
+      g_printerr (_("Can't parse “%s”\n"), filename);
+      return FALSE;
+    }
+
   data.builder = gtk_builder_new ();
 
   if (data.convert3to4)
-- 
2.30.2