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diff src/testdir/test_listener.vim @ 17151:ebe9aab81898 v8.1.1575

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patch 8.1.1575: callbacks may be garbage collected commit https://github.com/vim/vim/commit/75a1a9415b9c207de5a29b25c0d1949c6c9c5c61 Author: Bram Moolenaar <Bram@vim.org> Date: Thu Jun 20 03:45:36 2019 +0200 patch 8.1.1575: callbacks may be garbage collected Problem: Callbacks may be garbage collected. Solution: Set reference in callbacks. (Ozaki Kiichi, closes https://github.com/vim/vim/issues/4564)
author Bram Moolenaar <Bram@vim.org>
date Thu, 20 Jun 2019 04:00:07 +0200
parents 5493e31010e1
children 31f31e938961
line wrap: on
line diff
--- a/src/testdir/test_listener.vim
+++ b/src/testdir/test_listener.vim
@@ -225,3 +225,20 @@ func Test_listening_other_buf()
   exe "buf " .. bufnr
   bwipe!
 endfunc
+
+func Test_listener_garbage_collect()
+  func MyListener(x, bufnr, start, end, added, changes)
+    " NOP
+  endfunc
+
+  new
+  let id = listener_add(function('MyListener', [{}]), bufnr(''))
+  call test_garbagecollect_now()
+  " must not crach caused by invalid memory access
+  normal ia
+  call assert_true(v:true)
+
+  call listener_remove(id)
+  delfunc MyListener
+  bwipe!
+endfunc