thac0/vim
1
0
Fork 0
forked from aniani/vim
Code Activity

patch 8.2.3336: behavior of negative index in list change changed

Browse Source 
Problem:    Behavior of negative index in list change changed. (Naruhiko
            Nishino)
Solution:   Only change it for Vim9 script. (closes #8749)
This commit is contained in:
Bram Moolenaar
2021-08-12 21:12:56 +02:00
parent ef98257593
commit 92f05f21af
3 changed files with 26 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

10
src/list.c
View File

@@ -1146,15 +1146,19 @@ list_slice_or_index(
n1 = len + n1;
if (n1 < 0 || n1 >= len)
{
// For a range we allow invalid values and return an empty
// list. A list index out of range is an error.
// For a range we allow invalid values and for legacy script return an
// empty list, for Vim9 script start at the first item.
// A list index out of range is an error.
if (!range)
{
if (verbose)
semsg(_(e_listidx), (long)n1_arg);
return FAIL;
}
n1 = n1 < 0 ? 0 : len;
if (in_vim9script())
n1 = n1 < 0 ? 0 : len;
else
n1 = len;
}
if (range)
{