# HG changeset patch
# User Bram Moolenaar <Bram@vim.org>
# Date 1644169503 -3600
# Node ID 55f0ac079829154bb18a5f2df870bd40e1a2c26f
# Parent  f73a56e2c61e954694031e5a27940d399b6fc9b6
patch 8.2.4312: no error for using :vim9script in a :def function

Commit: https://github.com/vim/vim/commit/107f7325f615a1ffa5b49521e316b44e117b0a04
Author: Bram Moolenaar <Bram@vim.org>
Date:   Sun Feb 6 17:30:41 2022 +0000

    patch 8.2.4312: no error for using :vim9script in a :def function

    Problem:    No error for using :vim9script in a :def function.
    Solution:   Give an error when compiling.

diff --git a/src/testdir/test_vim9_script.vim b/src/testdir/test_vim9_script.vim
--- a/src/testdir/test_vim9_script.vim
+++ b/src/testdir/test_vim9_script.vim
@@ -1227,6 +1227,7 @@ def Test_vim9script_fails()
   v9.CheckScriptFailure(['vim9script', 'const str = "asdf"', 'str = "xxx"'], 'E46:')
 
   assert_fails('vim9script', 'E1038:')
+  v9.CheckDefFailure(['vim9script'], 'E1038:')
 enddef
 
 def Test_script_var_shadows_function()
diff --git a/src/version.c b/src/version.c
--- a/src/version.c
+++ b/src/version.c
@@ -747,6 +747,8 @@ static char *(features[]) =
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    4312,
+/**/
     4311,
 /**/
     4310,
diff --git a/src/vim9compile.c b/src/vim9compile.c
--- a/src/vim9compile.c
+++ b/src/vim9compile.c
@@ -3138,6 +3138,10 @@ compile_def_function(
 			line = compile_script(line, &cctx);
 		    break;
 
+	    case CMD_vim9script:
+		    emsg(_(e_vim9script_can_only_be_used_in_script));
+		    goto erret;
+
 	    case CMD_global:
 		    if (check_global_and_subst(ea.cmd, p) == FAIL)
 			goto erret;