aniani/vim
0
0
Fork 1
mirror of https://github.com/vim/vim.git synced 2025-09-23 03:43:49 -04:00
Code Activity

patch 8.2.2386: Vim9: crash when using ":silent! put"

Browse Source 
Problem:    Vim9: crash when using ":silent! put".
Solution:   When ignoring an error for ":silent!" rewind the stack and skip
            ahead to restoring the cmdmod. (closes #7717)
This commit is contained in:
Bram Moolenaar
2021-01-21 19:41:16 +01:00
parent e71996bd08
commit f904133e1a
3 changed files with 37 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

17
src/vim9execute.c
View File

@@ -1124,6 +1124,7 @@ call_def_function(
msglist_T *private_msg_list = NULL;
cmdmod_T save_cmdmod;
int restore_cmdmod = FALSE;
int restore_cmdmod_stacklen = 0;
int save_emsg_silent_def = emsg_silent_def;
int save_did_emsg_def = did_emsg_def;
int trylevel_at_start = trylevel;
@@ -3398,6 +3399,7 @@ call_def_function(
case ISN_CMDMOD:
save_cmdmod = cmdmod;
restore_cmdmod = TRUE;
restore_cmdmod_stacklen = ectx.ec_stack.ga_len;
cmdmod = *iptr->isn_arg.cmdmod.cf_cmdmod;
apply_cmdmod(&cmdmod);
break;
@@ -3523,7 +3525,22 @@ on_error:
// when calling the function.
if (did_emsg_cumul + did_emsg == did_emsg_before
&& emsg_silent && did_emsg_def == 0)
{
// If a sequence of instructions causes an error while ":silent!"
// was used, restore the stack length and jump ahead to restoring
// the cmdmod.
if (restore_cmdmod)
{
while (ectx.ec_stack.ga_len > restore_cmdmod_stacklen)
{
--ectx.ec_stack.ga_len;
clear_tv(STACK_TV_BOT(0));
}
while (ectx.ec_instr[ectx.ec_iidx].isn_type != ISN_CMDMOD_REV)
++ectx.ec_iidx;
}
continue;
}
on_fatal_error:
// Jump here for an error that messes up the stack.
// If we are not inside a try-catch started here, abort execution.