commit 07eb53d72eb6db4076397305d67ac385be99e664
author Googler <noreply@google.com> Mon Oct 21 00:43:59 2019 -0700
committer Copybara-Service <copybara-worker@google.com> Mon Oct 21 00:45:00 2019 -0700
tree db5465a95878d0050b3e4800064011d56614d7c9
parent 049a639a3ddc6c8cfb5a23f845bbd2e0ad111d99

Gracefully handle case where dependency_mapping_files is empty

RELNOTES: None
PiperOrigin-RevId: 275789823

tools/objc/j2objc_dead_code_pruner.py

diff --git a/tools/objc/j2objc_dead_code_pruner.py b/tools/objc/j2objc_dead_code_pruner.py
index d27da0e..e06b492 100755
--- a/tools/objc/j2objc_dead_code_pruner.py
+++ b/tools/objc/j2objc_dead_code_pruner.py
@@ -405,6 +405,8 @@
    corresponding direct dependent source files.
   """
   tree = dict()
+  if not files:
+    return tree
   for filename in files.split(','):
     with file_open(filename, 'r') as f:
       for line in f: