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vim-patch:8.2.3336: behavior of negative index in list change changed

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Problem:    Behavior of negative index in list change changed. (Naruhiko
            Nishino)
Solution:   Only change it for Vim9 script. (closes vim/vim#8749)

92f05f21af

Co-authored-by: Bram Moolenaar <Bram@vim.org>
This commit is contained in:
zeertzjq
2023-05-04 16:12:52 +08:00
parent 7ac63906ea
commit 47132823ab
2 changed files with 22 additions and 3 deletions
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6
src/nvim/eval/typval.c
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@@ -787,15 +787,15 @@ int tv_list_slice_or_index(list_T *list, bool range, int n1_arg, int n2_arg, typ
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 return an empty list.
// A list index out of range is an error.
if (!range) {
if (verbose) {
semsg(_(e_listidx), (int64_t)n1);
}
return FAIL;
}
n1 = n1 < 0 ? 0 : len;
n1 = len;
}
if (range) {
if (n2 < 0) {