commit f5906aa7807e9a14159cbc09a141138a2a068ab2
author Bram Moolenaar <Bram@vim.org> Fri Apr 02 14:35:15 2021 +0200
committer Bram Moolenaar <Bram@vim.org> Fri Apr 02 14:35:15 2021 +0200
tree e94aa85babaa4f33d3db4bc623ee966cd241a3f8
parent 3fa5e64e0ed55de718e48d0268edc360b2352bc1

patch 8.2.2692: Vim9: locked script variable can be changed

Problem:    Vim9: locked script variable can be changed.
Solution:   Check for locked value. (closes #8031)

src/testdir/test_vim9_assign.vim

diff --git a/src/testdir/test_vim9_assign.vim b/src/testdir/test_vim9_assign.vim
index 41ec7c7..c062052 100644
--- a/src/testdir/test_vim9_assign.vim
+++ b/src/testdir/test_vim9_assign.vim
@@ -1348,6 +1348,17 @@
 
   lines =<< trim END
     vim9script
+    var name = 'one'
+    lockvar name
+    def SetLocked()
+      name = 'two'
+    enddef
+    SetLocked()
+  END
+  CheckScriptFailure(lines, 'E741: Value is locked: name')
+
+  lines =<< trim END
+    vim9script
     def SetGlobalConst()
       const g:globConst = 123
     enddef