# HG changeset patch
# User Bram Moolenaar <Bram@vim.org>
# Date 1631045703 -7200
# Node ID fc8046209eaa3f7fe10f4e08f65eb31043067f8d
# Parent  06e0400d9d69c18faa7c8a5b2df310acf4d934c5
patch 8.2.3411: Vim9: crash when using base name of import

Commit: https://github.com/vim/vim/commit/6853c38b78fe5333f95470e1ff3ca6741247e600
Author: Bram Moolenaar <Bram@vim.org>
Date:   Tue Sep 7 22:12:19 2021 +0200

    patch 8.2.3411: Vim9: crash when using base name of import

    Problem:    Vim9: crash when using base name of import. (Naohiro Ono)
    Solution:   Check the import flags. (closes https://github.com/vim/vim/issues/8843)

diff --git a/src/errors.h b/src/errors.h
--- a/src/errors.h
+++ b/src/errors.h
@@ -654,3 +654,5 @@ EXTERN char e_legacy_must_be_followed_by
 	INIT(= N_("E1234: legacy must be followed by a command"));
 EXTERN char e_function_reference_is_not_set[]
 	INIT(= N_("E1235: Function reference is not set"));
+EXTERN char e_cannot_use_str_itself_it_is_imported_with_star[]
+	INIT(= N_("E1236: Cannot use %s itself, it is imported with '*'"));
diff --git a/src/evalvars.c b/src/evalvars.c
--- a/src/evalvars.c
+++ b/src/evalvars.c
@@ -3260,6 +3260,12 @@ set_var_const(
 		semsg(_(e_redefining_imported_item_str), name);
 		goto failed;
 	    }
+	    if (import->imp_flags & IMP_FLAGS_STAR)
+	    {
+		semsg(_(e_cannot_use_str_itself_it_is_imported_with_star),
+									 name);
+		goto failed;
+	    }
 	    sv = ((svar_T *)si->sn_var_vals.ga_data) + import->imp_var_vals_idx;
 
 	    where.wt_variable = TRUE;
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
@@ -1477,6 +1477,21 @@ def Test_vim9_import_export()
   delete('Xvim9_script')
 enddef
 
+def Test_import_star_fails()
+  writefile([], 'Xfoo.vim')
+  var lines =<< trim END
+      import * as foo from '/tmp/foo.vim'
+      foo = 'bar'
+  END
+  CheckDefAndScriptFailure2(lines, 'E1094:', 'E1236: Cannot use foo itself')
+  lines =<< trim END
+      vim9script
+      import * as foo from '/tmp/foo.vim'
+      var that = foo
+  END
+  CheckScriptFailure(lines, 'E1029: Expected ''.''')
+enddef
+
 def Test_import_as()
   var export_lines =<< trim END
     vim9script
diff --git a/src/version.c b/src/version.c
--- a/src/version.c
+++ b/src/version.c
@@ -756,6 +756,8 @@ static char *(features[]) =
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    3411,
+/**/
     3410,
 /**/
     3409,