commit f9b2b49663226235f94f08230fe9023caf80a6e9
author Bram Moolenaar <Bram@vim.org> Wed Aug 05 14:34:14 2020 +0200
committer Bram Moolenaar <Bram@vim.org> Wed Aug 05 14:34:14 2020 +0200
tree f34be82de9372deb871b09a572157d7dcfefed6e
parent fdac71c5075062f97f77044e9619fa5c907e0327

patch 8.2.1373: Vim9: no error for assigning to non-existing script var

Problem:    Vim9: no error for assigning to non-existing script var.
Solution:   Check that in Vim9 script the variable was defined. (closes #6630)

src/testdir/test_vim9_script.vim

diff --git a/src/testdir/test_vim9_script.vim b/src/testdir/test_vim9_script.vim
index 64ac3bb..f99333c 100644
--- a/src/testdir/test_vim9_script.vim
+++ b/src/testdir/test_vim9_script.vim
@@ -112,6 +112,15 @@
   call CheckDefFailure(['let s:var = 123'], 'E1101:')
   call CheckDefFailure(['let s:var: number'], 'E1101:')
 
+  lines =<< trim END
+    vim9script
+    def SomeFunc()
+      s:var = 123
+    enddef
+    defcompile
+  END
+  call CheckScriptFailure(lines, 'E1089:')
+
   g:inc_counter += 1
   assert_equal(2, g:inc_counter)