`nvim_get_option_value` and `nvim_set_option_value` better handle
unsetting local options. For instance, this is currently not possible:
vim.bo.tagfunc = nil
This does not work because 'tagfunc' is marked as "local to buffer" and
does not have a fallback global option. However, using :setlocal *does*
work as expected
:setlocal tagfunc=
`nvim_set_option_value` behaves more like :set and :setlocal (by
design), so using these as the underlying API functions beneath vim.bo
and vim.wo makes those two tables act more like :setlocal. Note that
vim.o *already* uses `nvim_set_option_value` under the hood, so that
vim.o behaves like :set.
luacheck and clint are the most important, and they are bundled.
The others are nice-to-have, and not always available (and not bundled),
so make them optional. This allows the "lint" target to function as
a convenient and low-hassle handle for contributors.
We still get the full power of lint in CI.
TODO: bundle uncrustify (and then set it as required for "lint")?
Problem:
Coverity reports use after free:
*** CID 352784: Memory - illegal accesses (USE_AFTER_FREE)
/src/nvim/buffer.c: 1508 in set_curbuf()
1502 if (old_tw != curbuf->b_p_tw) {
1503 check_colorcolumn(curwin);
1504 }
1505 }
1506
1507 if (bufref_valid(&prevbufref) && prevbuf->terminal != NULL) {
>>> CID 352784: Memory - illegal accesses (USE_AFTER_FREE)
>>> Calling "terminal_check_size" dereferences freed pointer "prevbuf->terminal".
1508 terminal_check_size(prevbuf->terminal);
1509 }
1510 }
1511
1512 /// Enter a new current buffer.
1513 /// Old curbuf must have been abandoned already! This also means "curbuf" may
Solution:
Change terminal_destroy and terminal_close to set caller storage to NULL,
similar to XFREE_CLEAR. This aligns with the pattern found already in:
terminal_destroy e897ccad3e
term_delayed_free 3e59c1e20d
Problem:
If startup finishes (starting=false) before the logger ever happens to
see a v:servername, we're stuck with the "?.<PID>" fallback name
forever.
Solution:
Drop the `starting` condition. Discard the "?.<PID>" fallback after
using it for the current log message. So logging will always check
v:servername next time.
If `use_rgb` was false, we would attempt to set the `cterm_bg_color` to the
variable `bg`, which is only retrieved from `bg` and `background` keys, not
`ctermbg`. Same for `fg`. This means the values would be `-1` (the default,
un-got value) and we'd always set the returned values to `0`.
My understanding is `fg/bg` is always "gui" values, so instead we should be
using `ctermbg` when needed.
Nb: when looking around I think this function is currently *always* called with
`use_rgb = true`.
Fixes#18980
- 831fa45ad8 is related but this doesn't regress that
- The `cterm_normal_fg_color != ae.cterm_fg_color` comparison is originally
carried from patch to patch starting all the way back in 29bc6dfabd where it
was avoiding setting a HL attr. But `hlattrs2dict()` now is just
informational.
The current emulation script enters Insert mode much too frequently.
Using only BufWinEnter seems to be a closer simulation.
Also add a few more mappings.
Steps to reproduce:
1. setting `vim.highlight.on_yank`
```
vim.api.nvim_create_autocmd({ "TextYankPost" }, {
pattern = { "*" },
callback = function()
vim.highlight.on_yank({ timeout = 200 })
end,
})
```
2. repeat typing `yeye` ...
3. causes the following error.
```
Error executing vim.schedule lua callback: vim/_editor.lua:0: handle 0x01e96970 is already closing
stack traceback:
[C]: in function 'close'
vim/_editor.lua: in function ''
vim/_editor.lua: in function <vim/_editor.lua:0>
```
📝 Test result before fix:
[----------] Global test environment setup.
[----------] Running tests from test/functional/lua/highlight_spec.lua
[ RUN ] vim.highlight.on_yank does not show errors even if buffer is wiped before timeout: 15.07 ms OK
[ RUN ] vim.highlight.on_yank does not show errors even if executed between timeout and clearing highlight: 15.07 ms ERR
test/helpers.lua:73: Expected objects to be the same.
Passed in:
(string) 'Error executing vim.schedule lua callback: vim/_editor.lua:0: handle 0x02025260 is already closing
stack traceback:
[C]: in function 'close'
vim/_editor.lua: in function ''
vim/_editor.lua: in function <vim/_editor.lua:0>'
Expected:
(string) ''
Problem:
- Unix sockets are created in random /tmp dirs.
- /tmp is messy, unclear when OSes actually clear it.
- The generated paths are very ugly. This adds friction to reasoning
about which paths belong to which Nvim instances.
- No way to provide a human-friendly way to identify Nvim instances in
logs or server addresses.
Solution:
- Store unix sockets in stdpath('state')
- Allow --listen "name" and serverstart("name") to given a name (which
is appended to a generated path).
TODO:
- is stdpath(state) the right place?
Problem:
1. Log messages (especially in CI) are hard to correlate with tests.
2. Since b353a5c05f#11886, dumplog() prints the logs next to test
failures. This is noisy and gets in the way of the test results.
Solution:
1. Associate an incrementing id with each test and include it in log
messages.
- FUTURE: add v:name so Nvim instances can be formally "named"?
2. Mention "child" in log messages if the current Nvim is a child (based
on the presence of $NVIM).
BEFORE:
DBG … 12345 UI: event
DBG … 12345 log_server_msg:722: RPC ->ch 1: …
DBG … 12345 UI: flush
DBG … 12345 inbuf_poll:444: blocking... events_enabled=1 events_pending=0
DBG … 23454 UI: stop
INF … 23454 os_exit:594: Nvim exit: 0
AFTER:
DBG … T57 UI: event
DBG … T57 log_server_msg:722: RPC ->ch 1: …
DBG … T57 UI: flush
DBG … T57 inbuf_poll:444: blocking... events_enabled=1 events_pending=0
DBG … T57/child UI: stop
INF … T57/child os_exit:594: Nvim exit: 0
Problem: Value of cmod_verbose is a bit complicated to use.
Solution: Use zero for not set, value + 1 when set. (closesvim/vim#10564)
cd7496382e
Omit has_cmdmod(): only used for Vim9 script
Problem: Command modifiers are saved and set inconsistently.
Solution: Separate parsing and applying command modifiers. Save values in
cmdmod_T.
5661ed6c83
Cherry-pick: :0verbose fix from patch 8.2.4741
drawback: tracing memory errors with ASAN is less accurate for arena
allocated memory.
Therefore, to start with it is being used for Object types around
serialization/deserialization exclusively. This is going to have
a large impact especially when TUI is refactored as a co-prosess
as all UI events will be serialized and deserialized by nvim itself.
Problem: Not all modifiers supported for :options.
Solution: Use all cmdmod.split flags. (closesvim/vim#4401)
7a1637f4c0
Cherry-pick Test_options_command() change from patch 8.2.0540
Problem: DirChanged autocommand may use freed memory. (Shane-XB Qian)
Solution: Free the memory later. (closesvim/vim#10555)
d8c9d32c89
Code change is N/A as Nvim gets the full current directory again before
applying the autocommand, so this just ports the tests.
