diem
unsafe-code-guidelines
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diem | unsafe-code-guidelines | |
---|---|---|
15 | 74 | |
16,697 | 639 | |
0.1% | 2.2% | |
5.9 | 6.9 | |
8 days ago | about 1 month ago | |
Rust | ||
Apache License 2.0 | Apache License 2.0 |
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
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diem
- Diem – Facebook open source Cryptocurrency written in Rust
- Zig, the Small Language
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Fuzzcheck (a structure-aware Rust fuzzer)
I implemented this for proptest + cargo fuzz a while ago as well: https://github.com/diem/diem/blob/main/testsuite/diem-fuzzer/src/lib.rs
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Are there any big projects written in Rust without any use of unsafe code?
I believe diem has over 250kLOC and no unsafe code
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Crowdloans on Kusama continue. Important news!
Pontem is an experimental network for the Diem coin (previously the project had the designation LIBRA and has been under development for several years). The project site is diem.com.
- the diem coin will be built on a native Facenook Blockchain or is the hypothesis that it can be based on Algorand well founded and has a minimum of sense?
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Async Rust: history strikes back
This is a common confusion for newcomers, as the keyword has a different (yet somewhat related) meaning depending on the context. Libra actually had a soundness bug because of confusion about this in combination with unsafe.
unsafe-code-guidelines
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Passing nothing is surprisingly difficult
Useful context on the Rust side is this issue [1]. It sounds like some of the author's concerns are addressed already.
[1]: https://github.com/rust-lang/unsafe-code-guidelines/issues/4...
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Blog Post: Non-Send Futures When?
Is this captured by one of the known soundness conflicts? If not then should consider adding it to the list.
- Are crates like vcell and volatile cell still unsound?
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Question: Are there things for Unsafe Rust learn from Zig?
There are some competing proposals for different memory models. Stacked borrows is the current proposal, but there are more work in the approproate WG.
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Let's thank who have helped us in the Rust Community together!
Thank you /u/RalfJung for bringing formal methods to Rust, both through models like Stacked Borrows, by developing miri, and by working on unsafe-code-guidelines which aims to specify exactly what is and isn't allowed in unsafe code (surprisingly, it's an open question as 2023!)
- Questions about ownership rule
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Noob Here: Why doesn't this work?
You could imagine some way to make this safe for example automatically convert &'short &'long mut T to &'short &'short T, but it's non-trivial to prove they are safe at all, not to mention ensuring this is correctly implemented in the compiler. If you're interested there's also a discussion on whether the opposite (& & T to & &mut T) is sound here.
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When Zig is safer and faster than (unsafe) Rust
Agreed! MIRI is so good, it still feels like magic to me. It also comforts me that the Rust team takes improving unsafe semantics seriously, with the past Unsafe Code Guidelines WG and today's operational semantics team (t-opsem).
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Safety and Soundness in Rust
I think there are some aspects of this rule that are still undecided. See for example:
- https://github.com/rust-lang/unsafe-code-guidelines/issues/8...
- https://github.com/rust-lang/miri/issues/2732
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I wanna be a crab.
C is much better specified than unsafe Rust. Some things are just not worked out yet in Rust. This may sometimes even bite very experienced devs, such as this issue with Box's aliasing semantics, which tripped up the author of left-right.
What are some alternatives?
hyperspace - Metaverse Hyperspace Chain, Hybrid PoW/PoS consensus full node with EVM compatible VM and smart tokens(FT/NFT).
tokio - A runtime for writing reliable asynchronous applications with Rust. Provides I/O, networking, scheduling, timers, ...
go-concise-encoding - Golang implementation of Concise Binary and Text Encoding
rust - Empowering everyone to build reliable and efficient software.
cardano-serialization-lib - This is a library, written in Rust, for serialization & deserialization of data structures used in Cardano's Haskell implementation of Alonzo along with useful utility functions.
rfcs - RFCs for changes to Rust
Demo
x11rb - X11 bindings for the rust programming language, similar to xcb being the X11 C bindings
trophy-case - 🏆 Collection of bugs uncovered by fuzzing Rust code
bevy - A refreshingly simple data-driven game engine built in Rust
abstreet - Transportation planning and traffic simulation software for creating cities friendlier to walking, biking, and public transit
miri - An interpreter for Rust's mid-level intermediate representation