commit 7aca5ca6763e50d2c23953b20e30fca7457c9abf
author Bram Moolenaar <Bram@vim.org> Mon Feb 07 19:56:43 2022 +0000
committer Bram Moolenaar <Bram@vim.org> Mon Feb 07 19:56:43 2022 +0000
tree a0a1e5077975c095e06f37b668baff7f68a92230
parent 92368aad613bca700877ccb1725e1cb5a80dd34a

patch 8.2.4322: Vim9: crash when using funcref with closure

Problem:    Vim9: crash when using funcref with closure.
Solution:   Keep a reference to the funcref that has the outer context.
            (closes #9716)

src/eval.c

diff --git a/src/eval.c b/src/eval.c
index 7ab05be..2942d0f 100644
--- a/src/eval.c
+++ b/src/eval.c
@@ -4526,6 +4526,9 @@
     // "out_up" is no longer used, decrement refcount on partial that owns it.
     partial_unref(pt->pt_outer.out_up_partial);
 
+    // Using pt_outer from another partial.
+    partial_unref(pt->pt_outer_partial);
+
     // Decrease the reference count for the context of a closure.  If down
     // to the minimum it may be time to free it.
     if (pt->pt_funcstack != NULL)