Mercurial > vim

diff src/list.c @ 22608:f140b9036aa5 v8.2.1852

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
patch 8.2.1852: map() returing zero for NULL list is unexpected Commit: https://github.com/vim/vim/commit/ffdf8adfa8108d4765fdc68abbd2fe49a4292b25 Author: Bram Moolenaar <Bram@vim.org> Date: Thu Oct 15 22:29:17 2020 +0200 patch 8.2.1852: map() returing zero for NULL list is unexpected Problem: map() returing zero for NULL list is unexpected. Solution: Return the empty list. (closes https://github.com/vim/vim/issues/7133)
author Bram Moolenaar <Bram@vim.org>
date Thu, 15 Oct 2020 22:30:04 +0200
parents 47596deedfb5
children 3e4981de5636
line wrap: on
line diff
--- a/src/list.c
+++ b/src/list.c
@@ -1961,6 +1961,9 @@ filter_map(typval_T *argvars, typval_T *
     int		save_did_emsg;
     int		idx = 0;
 
+    // Always return the first argument, also on failure.
+    copy_tv(&argvars[0], rettv);
+
     if (argvars[0].v_type == VAR_BLOB)
     {
 	if ((b = argvars[0].vval.v_blob) == NULL)
@@ -2110,8 +2113,6 @@ filter_map(typval_T *argvars, typval_T *
 
 	did_emsg |= save_did_emsg;
     }
-
-    copy_tv(&argvars[0], rettv);
 }
 
 /*