Completion acting strangely under cc-mode

joshualex commented 1 year ago

I confirm that...

[X] I have searched the issue tracker, documentation, FAQ, Discourse, and Google, in case this issue has already been reported/resolved.
[X] I have read "How to Debug Issues", and will use it to provide as much information about this issue as possible.
[X] The issue can be reproduced on the latest available commit of Doom.
[X] The issue can be reproduced on a stable release of Emacs, such as 27 or 28. (Doom does not support development builds like 29+ or any version ending in .50 or .9x)

Expected behavior

I turn on lsp for cc mode using the following in init.el: (cc +lsp)

I also have company enabled under :completion

When running this configuration with clangd installed, opening a .c file and hitting something that ends with a colon (e.g. case 2:) I expect nothing to happen and no completion dropdown to appear

Current behavior

writing the above triggers the completion dropdown with irrelevant suggestions (e.g. comment-line).

Steps to reproduce

Open emacs with doom and the above configuration (clangd installed, cc+lsp, company, yasnippet)
Open a fresh C file
write 2: in the file

System Information

https://pastebin.com/9sdNAz0n

joshualex commented 1 year ago

As far as I can understand this is not a bug in lsp-mode, as it doesn't reproduce in lsp-start-plain

innerout commented 1 year ago

This is not a bug in lsp-mode, as @joshualex says, the problem probably is that company mode is triggered, and because lsp does not find any relevant completions for : it suggests other entries that other backends return. I agree with the OP that this behavior is annoying though.

doomemacs / doomemacs