From 01fecaa3523b805d1cf4a1d5b10d6fc4a70e95fb Mon Sep 17 00:00:00 2001
From: blueloveTH <blueloveTH@foxmail.com>
Date: Sun, 15 Oct 2023 03:33:03 +0800
Subject: [PATCH] fix a bug

---
 include/pocketpy/frame.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/include/pocketpy/frame.h b/include/pocketpy/frame.h
index 90f90112..647d039d 100644
--- a/include/pocketpy/frame.h
+++ b/include/pocketpy/frame.h
@@ -122,6 +122,8 @@ struct Frame {
     void _gc_mark() const {
         PK_OBJ_MARK(_module);
         co->_gc_mark();
+        // Frame could be stored in a generator, so mark _callable for safety
+        if(_callable != nullptr) PK_OBJ_MARK(_callable);
     }
 };