Patch 8.2.1720

[Bram Moolenaar]

Patch 8.2.1720
Problem: Vim9: memory leak with heredoc that isn't executed. (Dominique
Pellé)
Solution: Don't clear the list items. (closes #6991)
Files: src/vim9compile.c, src/testdir/test_vim9_script.vim


*** ../vim-8.2.1719/src/vim9compile.c 2020-09-20 22:43:48.205496879 +0200
--- src/vim9compile.c 2020-09-21 20:34:17.139626834 +0200
***************
*** 4622,4636 ****
eap->cookie = cctx;
l = heredoc_get(eap, op + 3, FALSE);

! // Push each line and the create the list.
! FOR_ALL_LIST_ITEMS(l, li)
{
! generate_PUSHS(cctx, li->li_tv.vval.v_string);
! li->li_tv.vval.v_string = NULL;
}
- generate_NEWLIST(cctx, l->lv_len);
- type = &t_list_string;
- member_type = &t_list_string;
list_free(l);
p += STRLEN(p);
end = p;
--- 4622,4639 ----
eap->cookie = cctx;
l = heredoc_get(eap, op + 3, FALSE);

! if (cctx->ctx_skip != SKIP_YES)
{
! // Push each line and the create the list.
! FOR_ALL_LIST_ITEMS(l, li)
! {
! generate_PUSHS(cctx, li->li_tv.vval.v_string);
! li->li_tv.vval.v_string = NULL;
! }
! generate_NEWLIST(cctx, l->lv_len);
! type = &t_list_string;
! member_type = &t_list_string;
}
list_free(l);
p += STRLEN(p);
end = p;
*** ../vim-8.2.1719/src/testdir/test_vim9_script.vim 2020-09-17 21:28:59.943951831 +0200
--- src/testdir/test_vim9_script.vim 2020-09-21 20:32:21.376167668 +0200
***************
*** 259,264 ****
--- 259,272 ----
let w: number
w = 123
assert_equal(123, w)
+
+
+ # this should not leak
+ if 0
+ let text =<< trim END
+ some text
+ END
+ endif
enddef

def Test_vim9_single_char_vars()
*** ../vim-8.2.1719/src/version.c 2020-09-20 22:43:48.209496857 +0200
--- src/version.c 2020-09-21 20:35:23.811315902 +0200
***************
*** 752,753 ****
--- 752,755 ----
{ /* Add new patch number below this line */
+ /**/
+ 1720,
/**/

--
DENNIS: You can't expect to wield supreme executive power just 'cause some
watery tart threw a sword at you!
"Monty Python and the Holy Grail" PYTHON (MONTY) PICTURES LTD

/// Bram Moolenaar -- Br...@Moolenaar.net -- http://www.Moolenaar.net \\\
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