intellij-rust VS lsp-mode

We’ll also consider the cases when IntelliJ IDEA licenses were primarily bought for Rust development with the IntelliJ Rust plugin and which options we can suggest to our users in these cases. Please stay tuned!

https://github.com/intellij-rust/intellij-rust/issues/10867#...

Last time I tried this, the plugin was incapable of actually showing compile errors in the project view and they said their false positive error rate was too high to enable it (https://github.com/intellij-rust/intellij-rust/pull/8373). That was a dealbreaker for me compared to VSCode.

Intellgi Rust is a good option.

Thank you all for the assist. Yep, not just a newbie issue which is surprising. :^) https://github.com/intellij-rust/intellij-rust/issues/10483

Warning about Unused_labels and implementation of MIR Now things are getting interesting

Agreed. Specifically, I've found the intellij rust plugin on top of Clion to be great.

figure out testing, you probably want to structure your app in a way that allows you to run it in testing (Zero to Production has a great approach to that). There are helpers for testing like sqlx::test but CLion Rust plugin doesn't support them yet, it breaks code analysis (afaik the fix is not released yet).

Any closer to getting error highlighting on files working properly (https://github.com/intellij-rust/intellij-rust/pull/8373)? That's a major benefit of rust-analyzer to me.

Could you please clarify whether the problem affects exactly local variables' values or function parameters' values? It is a known bug that the CLion's debugger cannot show function parameters' values on Windows: https://github.com/intellij-rust/intellij-rust/issues/6676. This is a major issue and we are working on it. But if you are facing such problems in any other scenarios, please let us know and share a problematic code snippet if possible

I also tried to the solutions suggested  and , but nothing worked. I moved the (setq lsp-keymap-...) line outside (and before) use-package. I also used :config (define-key lsp-load-map...) in my use-package block. But none of them worked.

Not sure how much this might help, but lsp-mode has lsp-yaml-select-buffer-schema and lsp-yaml-set-buffer-schema commands to pick schema from a list or set from a URI. Checking the source of them might give some hints about how the same could be implemented in eglot?

Beyond that you might as well embrace the suck and install autex with a language server: https://emacs-lsp.github.io/lsp-mode/

Smart completion these days is done primarily through LSP. eglot is fairly minimal but built-in as of 29, also available via GNU Elpa. lsp-mode is another option with more integrations and a bit more fleshed out.

lsp-mode: https://github.com/emacs-lsp/lsp-mode/issues/2080

Are you running emacs-29? It has numerous speed-ups compared to emacs-28 and older versions, many of them coded by Mattias Engdegård, e.g. commit def6fa4246. I have a fresh build of emacs-29 running on Linux and a new mac with an M1 CPU, and it's stupid fast. I don't use the native-comp feature. I rarely notice any hesitation or slowness. I don't use Elpy. I do use lsp mode.

Since you are doing code development, the first things to go for would be setting up your emacs packaging (installing use-package and melpa (use-package's documentation covers this) so you have more packages to choose from (do be careful to not just pick things willy nilly but research them a bit first)) and then setting up lsp-mode. lsp-mode lets you use LSP servers for the specific programming languages you work with in a somewhat unified fashion. You then need to install and setup the LSP servers for the languages you use, and possibly install language specific Emacs packages as support (note, Emacs has builtin functionality for many).

And first of all, I'm trying to understand, how is it connected to https://github.com/emacs-lsp/lsp-mode? I'm sure, that existed lsp implementations already parse source code. Why TreeSitter?