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rnestler

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The article shows neatly how Rust is inspired by functional programming languages, but polished the concepts by learning from their mistakes.

In the "Purity and Referential Transparency" section I'd have expected some comparison with `const fn` in Rust. Aren't `const fn` in Rust pure?

I tested it quickly on a 30kLOC project. zmypy seems to be faster than mypy indeed:

Without mypy cache:

  $ rm -rf .mypy_cache
  $ time mypy
  Success: no issues found in 157 source files
  mypy  20.40s user 2.33s system 108% cpu 20.886 total
With mypy cache without any changes:
  $ mypy --version
  mypy 1.16.0 (compiled: yes)
  $ time mypy
  Success: no issues found in 157 source files
  mypy  0.56s user 1.84s system 628% cpu 0.381 total
mypy with a small change in a shared module
  $ time mypy
  Success: no issues found in 157 source files
  mypy tests/  2.32s user 2.06s system 168% cpu 2.601 total
zmypy:
  $ time zmypy
  Found 68 errors in 16 files (checked 157 source files)
  zmypy  0.68s user 0.05s system 99% cpu 0.731 total

Without caching and parallelization (as the 99% CPU usage indicates) it comes in the range of mypy using the cache and multiple cores (628% CPU usage) without any changes in the code.

zmypy seems to find more errors but they mostly boil down to the following errors

* Call to untyped function "__setitem__" in typed context

* ... has incompatible type "MagicMock"; expected ...

Maybe __setitem__ and MagicMock are treated specially in mypy? Also there seem to be differences in handling Protocol and enum comparison.

This article is IMO inaccurate in a few points:

for the first time, we have a Rust-based driver in the mainline kernel.

https://rust-for-linux.com/amcc-qt2025-phy-driver is in mainline since 6.12 and https://rust-for-linux.com/asix-phy-driver even since 6.8

empowers Nvidia's next-generation open-source graphics hardware. The driver targets Nvidia's RTX 2000 "Turing" series and newer GPUs.

This sounds like it is already fully working, but as far as I know it's just a stub driver merged so far: https://rust-for-linux.com/nova-gpu-driver, https://www.phoronix.com/news/NOVA-Driver-For-Linux-6.15

This makes the article appear as just click-bait to me.

Rust 1.0 (2015) 1 year ago

10 years already, amazing. I still remember playing around with pre 1.0 Rust and having my code break on every other compiler update :)

In addition, if you add "donate" button you'd see a lot of artists being showered with cash.

There are donation buttons for some artist on Spotify. I guess the artist need to enable it? ("Signum Regis" is an artist that has a Donate button for example)

Can I compile rust-written linux modules with a rust-written rust compiler?

The offficial Rust compiler is written in Rust.

And where can I download bootstrap static ELF64 binaries of this compiler?

You can get a Rust compiler on https://rustup.rs

Probalby you can get one which is statically compiled for the musl target.

If you want to follow the boostrap procedure see https://rustc-dev-guide.rust-lang.org/building/bootstrapping...

The real problem is that you can't use crates to improve incrementalism when you have a type in one logical part of the module hierarchy implement a trait from another logical part. Due to orphan rules and coherence, it is not possible to implement a foreign trait for a foreign type.

Well you can implement a trait for a type from another logical part either in the crate of the trait or the crate of the type.

What is the use-case for implementing a foreign trait for a foreign type if you have both under control?

I wanted to separate the type, the trait and the implementation of the trait in different crates.

I usually put the traits in a separate crate, but keep concrete types and implementations for them in the same crate.

What is the use-case for splitting a type and it's implementation into separate crates? (except for cases where the trait or the type are out of your control, then one indeed needs to use the new-type escape hatch)

Nice to see that my blogposts about building a Linux kernel with Rust support on ArchLinux were useful for at least someone else :)

This post does a lot better job at describing the prerequisites to enable Rust in the Linux kernel, while I just referred to the AUR package I created.

There is an issue from 2019 on the pipenv tracker for this issue: https://github.com/pypa/pipenv/issues/3893

According to the last comment there it should be fixed:

I don't think this should be an issue in the current 2022.4.8 release because of the requirement to use index restricted packages for locking. Please advise if you think this is still a concern and we can revisit it.

But apparently it is still an issue (assuming the author did use a recent enough pipenv version)

From the article:

Overall this is pipenv working exactly as it should.

I don't agree, IMO pipenv should just install from the source package and ignore the newer wheel, maybe showing a warning about the new wheel.

Edit: Just noticed that the author agrees in the end:

I suppose the behavior I’d like to see here is that if my Pipfile.lock has hashes in it for a distribution, then even if additional distributions are available, pipenv sync should be allowed to continue to install from the distribution corresponding to the “trusted” hash.

I prefer to use https://python-poetry.org/ instead of pipenv, since it has less issues in my experience. But I wonder how it would behave in this situation.

It's kind of impressive that one can still run the same .hta app even on Windows 11 according to the wikipedia article:

HTAs are dependent on the Trident (MSHTML) browser engine, used by Internet Explorer, but are not dependent on the Internet Explorer application itself. If a user removes Internet Explorer from Windows, via the Control Panel, the MSHTML engine remains and HTAs continue to work. HTAs continue to work in Windows 11 as well.

This is really impressive and sounds like a fun journey. The blog post gives a good introduction / overview on how digital circuits work.

I guess you could make a nice post explaining the design of the CPU (similar to the "Component example: load/store with register offset" section).

Firefox on Android asks after the second alert if I want to prevent the page from opening further dialogs which I can select to silence it.