fix: avoid undeclared gt res

Author: terryyz

bigcodebench/evaluate.py

@@ -131,14 +131,15 @@ def evaluate(flags):
     else:
         expected_time = {task_id: None for task_id in problems}
 
+    gt_pass_rate = np.mean([1 if v is not None else 0 for v in expected_time.values()])
+    
     if os.path.isfile(result_path):
         print(f"Load from previous results from {result_path}")
         with open(result_path, "r") as f:
             results = json.load(f)
 
         results = compatible_eval_result(results)
     else:
-        gt_pass_rate = np.mean([1 if v is not None else 0 for v in expected_time.values()])
 
         if flags.check_gt_only: