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vim-patch:9.0.0360: crash when invalid line number on :for is ignored

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Problem:    Crash when invalid line number on :for is ignored.
Solution:   Do not check breakpoint for non-existing line.
35d21c6830

Test does not fail without the fix in Nvim as Nvim uses 0 when line
number overflows. If it is changed to MAXLNUM then the test does fail
without the fix, but using 0 seems better as E481 is still given.
This commit is contained in:
zeertzjq
2022-09-03 06:46:30 +08:00
parent 05b49ef975
commit 7243b1cbde
2 changed files with 16 additions and 1 deletions
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2
src/nvim/ex_docmd.c
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@@ -642,7 +642,7 @@ int do_cmdline(char *cmdline, LineGetter fgetline, void *cookie, int flags)
// Check for the next breakpoint at or after the ":while"
// or ":for".
if (breakpoint != NULL) {
if (breakpoint != NULL && lines_ga.ga_len > current_line) {
*breakpoint = dbg_find_breakpoint(getline_equal(fgetline, cookie, getsourceline), fname,
((wcmd_T *)lines_ga.ga_data)[current_line].lnum - 1);
*dbg_tick = debug_tick;