Rust Glancer: Rust LSP using 100x less RAM

#1

Post by matklad » Fri, Aug 21, 2026, 7:51 PM UTC

https://matklad.github.io/2026/08/21/rust-glancer.html

Rust Glancer: Rust LSP using 100x less RAM
rust-glancer.github.io

Re: Rust Glancer: Rust LSP using 100x less RAM

#2

Post by matklad » Fri, Aug 21, 2026, 7:52 PM UTC

To clarify, author is https://github.com/popzxc, not me! My thoughts are here: https://matklad.github.io/2026/08/21/rust-glancer.html

Re: Rust Glancer: Rust LSP using 100x less RAM

#3

Post by 762236 » Sat, Aug 22, 2026, 12:21 AM UTC

Why don't people explain their acronyms? What is a Rust LSP?

Re: Rust Glancer: Rust LSP using 100x less RAM

#4

Post by francislavoie » Sat, Aug 22, 2026, 12:24 AM UTC

762236 wrote: post #3

Why don't people explain their acronyms? What is a Rust LSP?

Language Server Protocol, it's what your IDE (like VSCode or other) uses to do linting, syntax checking, and "go to reference" stuff.

Re: Rust Glancer: Rust LSP using 100x less RAM

#5

Post by xixixao » Sat, Aug 22, 2026, 12:25 AM UTC

762236 wrote: post #3

Why don't people explain their acronyms? What is a Rust LSP?

People communicate with regards to the audience they expect.

This is why Rust (it’s a systems programming language) and LSP (the language server protocol invented by VS Code) are not explained in the article.

I am hoping I don’t have to define the words I used, but if in doubt, Google or ChatGPT are your friends.

Re: Rust Glancer: Rust LSP using 100x less RAM

#6

Post by IshKebab » Sat, Aug 22, 2026, 12:47 AM UTC

762236 wrote: post #3

Why don't people explain their acronyms? What is a Rust LSP?

LSP is a well known term among programmers these days.

Re: Rust Glancer: Rust LSP using 100x less RAM

#7

Post by 762236 » Sat, Aug 22, 2026, 12:48 AM UTC

xixixao wrote: post #5

762236 wrote: post #3

Why don't people explain their acronyms? What is a Rust LSP?

People communicate with regards to the audience they expect. This is why Rust (it’s a systems programming language) and LSP (the language server protocol invented by VS Code) are not explained in the article. I am hoping I don’t have to define the words I used, but if in doubt, Google or ChatGPT are your friends.

It makes sense to always explain acronyms. I always do to avoid random people reaching out for more explanations

Re: Rust Glancer: Rust LSP using 100x less RAM

#8

Post by skavi » Sat, Aug 22, 2026, 12:50 AM UTC

Waiting for RA to build up the full in memory data structure for a large workspace is so painful. Honestly, I'd just assumed that was the only way and didn't realize Rust Rover was different.

Does anyone have experience using that? Any tradeoffs?

Re: Rust Glancer: Rust LSP using 100x less RAM

#9

Post by 762236 » Sat, Aug 22, 2026, 12:53 AM UTC

IshKebab wrote: post #6

762236 wrote: post #3

Why don't people explain their acronyms? What is a Rust LSP?

LSP is a well known term among programmers these days.

Not if an LLM writes your code. I get thousands of lines of high quality Rust per day without ever stepping into VScode.

Re: Rust Glancer: Rust LSP using 100x less RAM

#10

Post by dang » Sat, Aug 22, 2026, 1:06 AM UTC

matklad wrote: post #2

To clarify, author is https://github.com/popzxc , not me! My thoughts are here: https://matklad.github.io/2026/08/21/rust-glancer.html

Your thoughts are quite cool! but I thought featuring the project itself would make more sense for a frontpage thread, so I'm going to merge the comments (such as they are) from https://news.ycombinator.com/item?id=49392654 and add your link to the toptext above. Thanks for drawing attention to this topic!