From ec284cf4ca257ee50edd4e31f08eaf3abdba88d8 Mon Sep 17 00:00:00 2001
From: DevTekVE <devtekve@gmail.com>
Date: Sun, 5 Apr 2026 00:02:21 +0200
Subject: [PATCH] refactor: prioritize in-memory generated DBCs over disk files
 (#3291)

Swapped the resolution order to check `get_generated_dbcs()` before falling back to `DBC_PATH`.
---
 opendbc/can/dbc.py | 11 ++++-------
 1 file changed, 4 insertions(+), 7 deletions(-)

diff --git a/opendbc/can/dbc.py b/opendbc/can/dbc.py
index 595590356..97300c55e 100644
--- a/opendbc/can/dbc.py
+++ b/opendbc/can/dbc.py
@@ -81,15 +81,12 @@ class DBC:
       self._parse_file(name)
     else:
       dbc_path = os.path.join(DBC_PATH, name + ".dbc")
-      if os.path.exists(dbc_path):
+      if content := get_generated_dbcs().get(name):
+        self._parse_content(name, content)
+      elif os.path.exists(dbc_path):
         self._parse_file(dbc_path)
       else:
-        # try in-memory generated DBC
-        generated = get_generated_dbcs()
-        content = generated.get(name)
-        if content is None:
-          raise FileNotFoundError(f"DBC not found: {name}")
-        self._parse_content(name, content)
+        raise FileNotFoundError(f"DBC not found: {name}")
 
   def _parse_file(self, path: str):
     self.name = os.path.basename(path).replace(".dbc", "")