[gtk-mac-bundler: 10/12] Raise an exception if bundler tries to get a node without specifying its parent.

[John Ralls <jralls src gnome org>]

commit 8fb70fdaec5474518094acebaade12fd7bd1a981
Author: John Ralls <jralls ceridwen us>
Date:   Mon Jul 18 12:12:02 2022 -0700

    Raise an exception if bundler tries to get a node without specifying its parent.

 bundler/utils.py | 2 ++
 1 file changed, 2 insertions(+)
---
diff --git a/bundler/utils.py b/bundler/utils.py
index e649885..4782109 100644
--- a/bundler/utils.py
+++ b/bundler/utils.py
@@ -70,6 +70,8 @@ def node_get_elements_by_tag_name(node, name):
         return []
 
 def node_get_element_by_tag_name(node, name):
+    if not node:
+        raise Exception("Can't get an element without a parent.")
     try:
         (data,) = node.getElementsByTagName(name)
         return data