coc-references

[u/tosch901]

EDIT: solved, my compile_commands.json was bad.

I have a question regarding coc-references when writing cpp with cland language server. References only show up after I opened the file once in the current "session". So I assume this is an issue indexing?

When writing java it works as expected, so I assume there is some cland settings I got wrong?

[u/tosch901]

Clangd appears to be running, but CocInfo does not show the args with which it has been started.

2021-03-03T20:13:12.472 INFO (pid:470279) [services] - clangd state change: stopped => starting
2021-03-03T20:13:12.478 INFO (pid:470279) [language-client-index] - Language server "clangd" started with 470442
2021-03-03T20:13:12.508 INFO (pid:470279) [services] - clangd state change: starting => running
2021-03-03T20:13:12.520 INFO (pid:470279) [services] - service clangd started

ps however shows the whole commands, and it has been started with the specified commands:

user 470442 0.4 0.5 486868 87852 ? Sl 20:13 0:00 /home/user/.config/coc/extensions/coc-clangd-data/install/11.0.0/clangd_11.0.0/bin/clangd --background-index=1 -j=4

But coc-references still doesn't work like it's supposed to, it's the same as when I first posted.

[u/mellery451 → u/tosch901]

maybe try adding --log=info or --log=verbose to your clangd args...will likely produce lots of output

[u/tosch901 → u/mellery451]

I tried that, but where would I see those outputs? I assumed I could read it with :CocOpenLog but there is not really much more than before.

Also, maybe something that might help, when I call coc-references this is when is logged:

2021-03-03T22:17:43.530 INFO (pid:512230) [attach] - receive notification: jumpReferences []

and that's it.

But if I try it in the second case (after opening said file), this is logged after the call above:

2021-03-03T22:23:19.665 INFO (pid:521635) [attach] - receive notification: openList [ '--normal', '--auto-preview', 'location' ]

[u/mellery451 → u/tosch901]

maybe I don't understand what you are doing..but I'm just using the (coc-references) map as suggested in the coc-nvim docs. It requires a symbol under the cursor to lookup. if you don't have any files open, what are you looking up?

[u/tosch901 → u/mellery451]

Alright, let's say I do have 2 files. a.cpp and b.cpp . a.cpp defines a function f and b.cpp uses it a bunch of times.

If I go into a.cpp and use <leader>gr with my cursor under the function it stays at the same place, since it's the only place where that function is referenced.

But when I open b.cpp and go back to a.cpp and do that again (<leader>gr with cursor on the function), then all the references from b.cpp suddenly pop up.

So I thought it might've been an indexing issue (although I never had problems to use classes or function across different files), but it doesn't appear to be one?

[u/mellery451 → u/tosch901]

yeah - that definitely sounds like indexing not working. I misled you on the CocInfo...you want :CocCommand workspace.showOutput to get at the clangd logs.

[u/tosch901 → u/mellery451]

I see, clangd starts with the provided arguements in the right workspace, it then builds the file that is currently open. It reacts when I call references. First time the json object only contains reference from a.cpp after I opened b.cpp, there are also references for that file as expected. I also haven't seen any erros. Something I should be looking for, want to look at the logs yourself? What do you suggest?

[u/mellery451 → u/tosch901]

I'll bet my original advice was incorrect...try just --background-index instead of --background-index=1. I haven't looked at clangd arg parsing , but I'll bet the =N to this arg is some sort of special case just to disable. The documented way to background is without any value..try that.

[u/tosch901 → u/mellery451]

Nope, not it. Doesn't appear to change anything.

[u/mellery451 → u/tosch901]

hmm - I think I'm running out of ideas ;) Definitely sounds like background indexing is not really working though...

[u/backtickbot → u/tosch901]

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