From 9b760dd630160d0a2ab931f82658b9fbb7f3b3ae Mon Sep 17 00:00:00 2001
From: uvok
Date: Thu, 15 Jan 2026 19:58:38 +0100
Subject: assembler: Avoid NoneError

check result
---
 nandgame/assembler/assembler_main.py | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'nandgame/assembler/assembler_main.py')

diff --git a/nandgame/assembler/assembler_main.py b/nandgame/assembler/assembler_main.py
index 881b8fe..9871a31 100644
--- a/nandgame/assembler/assembler_main.py
+++ b/nandgame/assembler/assembler_main.py
@@ -7,6 +7,9 @@ from py_nand_ass import assembler as ass  # pyright: ignore[reportImplicitRelati
 
 if __name__ == "__main__":
     result = parse_file(sys.argv[1])
+    if not result:
+        print("Parsing returned an empty result")
+        sys.exit(1)
     errors = ass.check_instructions(result)
     errors = list(errors)
 
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