iiinova — where your digital self keeps evolving

Got renames working in the LSP! Had to do a lot of internal refactoring to make this work well without hacky-ness. The internal MIR is now a couple of flat vecs instead of a tree. That makes the core compiler ~5-10% faster too as a bonus.

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Dion Dokter @diondokter.nl · 12h

Huh, no I don't think I've heard of that. That links seems like an interesting read!

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Dion Dokter @diondokter.nl · 13h

Ah... Yes that's hard

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Dion Dokter @diondokter.nl · 14h

Yep! It was a 'not-quite-eq' key that carried the span of an AST node. The span was ignored for equality (and hash). I think that's legal, but I also now see it's a bit of a footgun

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Dion Dokter @diondokter.nl · 14h

This got changed to a fully 'eq' key with the span in as the hashmap value. But now the insert would write a new span, which means I didn't have the original span anymore. This is all quite logical in the end, but still surprising in the moment.

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Dion Dokter @diondokter.nl · 14h

Oh, I don't read this as antagonistic! In my case, the key was 'not-quite-eq' in that it ignored a span. This was for a duplicates check and if a duplicate was found, I wanted the original span to emit a diagnostic with.

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Dion Dokter @diondokter.nl · 18h

Ah, annoying difference between HashSet and HashMap in #rustlang: With map, an insert updates the old value. With set, an insert keeps the old value. Good to look out for if you're changing between them!

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Dion Dokter @diondokter.nl · 22h

Bevy is still young and doing lots of breaking changes. Couldn't that be fixed? It's never going to be less painful than now

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Dion Dokter @diondokter.nl · 01/10/2026

My Rust compiler dev achievements: - [x] Amanieu reviews your PR - [ ] Amanieu likes your PR More work to do :P

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RustNL @rustnl.bsky.social · 01/10/2026

The Call for Proposals for RustWeek 2027 is now open! If you’d like to give a talk, go here: 2027.rustweek.org/blog/2026-10... The CFP closes Jan 10, 2027 #rustweek2027 #rustlang

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Dion Dokter @diondokter.nl · 30/09/2026

Apparently Firefox decided it would look better with that awful vibecodey LLM style. Gradients and neons, all the stuff I would have loved as an 8 year old. You can install this neutral theme to have it colored relatively normal again: addons.mozilla.org/en-US/firefo...

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Dion Dokter @diondokter.nl · 29/09/2026

Love still having you around!

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Glyph @glyph.im · 28/09/2026

New Blog: What Would A Serious AI Product Look Like? Every “AI” tool is missing critical features that you would need if you wanted to do real work with them. What would those look like, if they existed? blog.glyph.im/2026/09/serious-ai-pr…

blog.glyph.im

Deciphering Glyph :: What Would A Serious AI Product Look Like?

Deciphering Glyph, the blog of Glyph Lefkowitz.

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Dion Dokter @diondokter.nl · 25/09/2026

Now I can sleep soundly again 🤓

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Dion Dokter @diondokter.nl · 25/09/2026

Who knew caching would make an LSP faster!? The change here is that the translations from byte spans to line/columns is now somewhat cached (line index to byte offset)

Very slow LSP operations with some of them pushing well into 200ms

Very fast LSP operations where those previously slow ones are now all less than a millisecond

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reto @galactic-forensics.space · 23/09/2026

At long last: Here's an update on the instrumentRs v0.2.0 idea. I wrote a new driver for SMC HRR chillers, which communicate via MODBUS RTU. I think the framework is starting to get there. As always, questions, comments, ideas very welcome! #Rust blog.galactic-forensics.space/blog/11-smc-...

blog.galactic-forensics.space

Controlling an SMC HRR chiller via MODBUS

Thoughts and ideas...

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Dion Dokter @diondokter.nl · 23/09/2026

You know, maybe one of the worst things of LLM output is that they simply don't know when to shut up.

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Dion Dokter @diondokter.nl · 22/09/2026

I've now also flattened the AST, but that hasn't given the perf bump I hoped for. Just an extra ~1%

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Dion Dokter @diondokter.nl · 22/09/2026

Ooohhh, changing my spans from 2x usize to 2x u32 makes the compiler 2% faster, for free! The only downside is that the compiler can no longer work with >4GiB files. So, no downside pretty much

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Dion Dokter @diondokter.nl · 20/09/2026

Every time I touch embedded-storage I get frustrated with its design. So I spent some more time again on my unified-storage trait: github.com/diondokter/u... My conclusion is that fully unifying storage isn't possible. But I think we can provide a common interface with plenty of metadata.

github.com

GitHub - diondokter/unified-storage

Contribute to diondokter/unified-storage development by creating an account on GitHub.

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TheZoq2 @thezoq2.bsky.social · 20/09/2026

One of the coolest things to happen in Spade yet 👀 @breakingtaps.com wrote and taped out a Transport Triggered Architecture processor from scratch in a month with 0 prior experience! www.youtube.com/watch?v=q6yt...

youtube.com

I designed a microprocessor

YouTube video by Breaking Taps

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Dion Dokter @diondokter.nl · 19/09/2026

Btw, the device-driver *runtime* is completely dependency free and sequential-storage only relies on embedded-storage(-async) You can opt in to more functionality, but that's all behind feature flags. I mostly do that for compile times though, not security necessarily.

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Dion Dokter @diondokter.nl · 19/09/2026

"We don't want to use Rust because we don't want hundreds of dependencies" Ok, then just don't add dependencies? You're in control of your own destiny here! sudo-rs has only 2 which they deemed better than 0

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Dion Dokter @diondokter.nl · 17/09/2026

Thanks for the links y'all! I've written down some ideas I'm having: github.com/diondokter/d... (feedback welcome 😊) It's gonna be a while before I can get to it, so I've got plenty more time to stew on it. Or maybe I decide this is all not worth it. Who knows!

github.com

Add native finite state machines · Issue #309 · diondokter/device-driver

Many of the bigger devices have explicit and implicit states. We should be able to encode those. They can range from simple ones to more complex ones: uninitialized | initialized shutdown | sleepin...

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Rust Language @rust-lang.org · 17/09/2026

⚠️ We believe that there is an ongoing campaign targeting owners of popular crates and rust-lang team members that is attempting to compromise devices and accounts in order to use them to publish malware. See our blog post for details: blog.rust-lang.org/2026/09/17/t...

blog.rust-lang.org

Be alert: targeted attacks on prominent Rustaceans | Rust Blog

Empowering everyone to build reliable and efficient software.

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Mara Bos @mara.bsky.social · 17/09/2026

You can now sponsor RustNL's Rust Maintainer Team through GitHub Sponsors: github.com/sponsors/rus... The page also lists other options to send us money. With your support, we can make sure the Rust project stays well maintained and grow our team with new talent. 💛

github.com

Sponsor @rustnl on GitHub Sponsors

Support our Rust Maintainers Team: https://rustnl.org/maintainers/ Over 30% of all pull requests on https://github.com/rust-lang/rust/ are either authored by or reviewed by our team.

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Dion Dokter @diondokter.nl · 17/09/2026

Interesting! This is nice

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Dion Dokter @diondokter.nl · 17/09/2026

I agree with all this! It may not be a good idea. But surely people have tried before and had some results. I'm thinking about this in the context of drivers. How do they change state and how could you encode that nicely? (In the general sense, not in Rust specifically)

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Dion Dokter @diondokter.nl · 17/09/2026

Are there programming languages with built-in (finite) state machines that are actually part of the language? I want to get some inspiration

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DEI Speedwagon @myrrlyn.net · 16/09/2026

dang i heard drew got woke i didn’t realize he got WOKE

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Dion Dokter @diondokter.nl · 16/09/2026

> Not a runtime defect. Not a type error. *Code generation itself failed.*

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Dion Dokter @diondokter.nl · 16/09/2026

Oh, variation! He's used a dot!

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Dion Dokter @diondokter.nl · 16/09/2026

No joke, I think 1 in 3 text lines on the slides of the presentation I'm attending does *not* have an em dash

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Dion Dokter @diondokter.nl · 13/09/2026

Seems like updating one of the js deps fixed it. People do like to compare Cargo with npm. But with npm I'm just always lost as to what's actually going on in a way I don't have with Cargo.

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Dion Dokter @diondokter.nl · 13/09/2026

I've got a problem where when I start the vscode window with my new extension in the debugger it often immediately closes and I have no idea what's going on. Very annoying

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Dion Dokter @diondokter.nl · 13/09/2026

LSP preview! Outline, semantic highlighting and inlay hints. I was hoping to get away with not having to implement a textmate grammar, but I think I have to. Comments are not captured in the AST, so I can't give them a semantic highlight and thus will have the default text color

Vscode window with outline, semantic highlights and inlay hints

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Dion Dokter @diondokter.nl · 10/09/2026

Working on an LSP is quite fun actually

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RustNL @rustnl.bsky.social · 10/09/2026

** Ticket sales now open ** Get your tickets for RustWeek 2027! We lowered the ticket prices: privately-paid tickets are now 199 instead of 249 euro. A checkbox enables a 100 euro discount for those who can't afford the full price ✨️. See you in Utrecht! 2027.rustweek.org #rustweek2027 #rust

2027.rustweek.org

RustWeek 2027 - RustWeek 2027

RustWeek 2027, The Netherlands - May 24–29 2027. The world's biggest Rust conference returns to beautiful Utrecht, welcoming over 900+ community members, professionals and the maintainers of Rust.

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Dion Dokter @diondokter.nl · 07/09/2026

Rust has dynamically sized structs and C has flexible array members. But C++ doesn't seem to have anything like it? That's strange. C++ can't even fully interop with C...

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Dion Dokter @diondokter.nl · 07/09/2026

Ha, needs to land first 😋 But I'd be open to talking about it!

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Dion Dokter @diondokter.nl · 07/09/2026

My async compiler work got funded! So here's my first PR: github.com/rust-lang/ru... Roughly, it changes match x { true => foo(1).await, false => foo(2).await, } to match x { true => foo(1), false => foo(2), }.await This means the future will only have 1 state instead of 2

github.com

Add merge yields by diondokter · Pull Request #162429 · rust-lang/rust

Part of Async statemachine optimisation project goal r? dingxiangfei2009 Added a pass that merges functionally identical yields right before the async StateTransform pass. The StateTransform pass c...

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Dion Dokter @diondokter.nl · 06/09/2026

Started work on an LSP for device-driver

Some DDSL code in vscode with error and warning squiggles

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