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diff src/testdir/test_filter_map.vim @ 19233:04c164c971a3 v8.2.0175

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patch 8.2.0175: crash when removing list element in map() Commit: https://github.com/vim/vim/commit/db661fb95dc41b7a9438cf3cd4e77f8410bc81c0 Author: Bram Moolenaar <Bram@vim.org> Date: Wed Jan 29 22:17:16 2020 +0100 patch 8.2.0175: crash when removing list element in map() Problem: Crash when removing list element in map(). Solution: Lock the list. (closes https://github.com/vim/vim/issues/2652)
author Bram Moolenaar <Bram@vim.org>
date Wed, 29 Jan 2020 22:30:04 +0100
parents 745c02392844
children e82996ad131f
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line diff
--- a/src/testdir/test_filter_map.vim
+++ b/src/testdir/test_filter_map.vim
@@ -93,3 +93,13 @@ func Test_map_fails()
   call assert_fails('call map([1], "42 +")', 'E15:')
   call assert_fails('call filter([1], "42 +")', 'E15:')
 endfunc
+
+func Test_map_and_modify()
+  let l = ["abc"]
+  " cannot change the list halfway a map()
+  call assert_fails('call map(l, "remove(l, 0)[0]")', 'E741:')
+
+  let d = #{a: 1, b: 2, c: 3}
+  call assert_fails('call map(d, "remove(d, v:key)[0]")', 'E741:')
+  call assert_fails('echo map(d, {k,v -> remove(d, k)})', 'E741:')
+endfunc