watt
case-studies
watt | case-studies | |
---|---|---|
21 | 11 | |
1,222 | 1,602 | |
- | - | |
7.3 | 3.8 | |
15 days ago | about 1 month ago | |
Rust | Rust | |
Apache License 2.0 | Apache License 2.0 |
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watt
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Rust devs push back as Serde project ships precompiled binaries
The precompiled binary is not a sandboxed WASM binary. Despite the name "watt" it has nothing to do with https://github.com/dtolnay/watt . You can look at the actual code to see for yourself.
- Arbitrary code execution during compilation – rust
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syn v2.0.0 released
* Related: watt is one approach to pre-compile proc-macro crates using WASM.
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My first year with Rust: The good, the bad, the ugly
In addition to thiserror and anyhow, our resident superhuman Rust-improving Robot, dtolnay, also developed an experiment in distributing precompiled proc macros as WebAssembly named Watt and, though I never bothered to create a Zulip account so I don't know what was said, I'm told there has been discussion around the idea of implementing something in that vein.
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Rust is coming to the Linux kernel
I think when we have Cranelift, Mold, and maybe Watt all working together then compile times will basically be a non-issue. It'll be a few years though.
- watt: Runtime for executing (Rust) procedural macros as WebAssembly
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Security advisory: malicious crate rustdecimal | Rust Blog
Check out https://github.com/dtolnay/watt - it's a really interesting solution to the problem!
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Backdooring Rust crates for fun and profit
I really like the idea of Watt: https://github.com/dtolnay/watt Run macros in a wasm sandbox so they can't touch anything you don't explicitly allow.
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NPM malware and what it could imply for Cargo
I really wish there was more interest in getting something like Watt upstreamed.
- Things I hate about Rust, redux
case-studies
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::lending-iterator — Lending/streaming Iterators on Stable Rust (and a pinch of HKT)
Luckily there is a workaround to emulate such a definition, which dtolnay discovered and explained here: https://github.com/dtolnay/case-studies/tree/b9802f6df8dc8e54970b83fb9af6df923b46abf5/unit-type-parameters.
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Hey Rustaceans! Got a question? Ask here! (17/2022)!
I think they are talking about this one trick which the devs don't want you to know about. Note that while it looks like specialization, it works only in a few very limited cases and is quite fragile, so it's a hack, not a substitute for the real feature.
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Any good resources for learning Rust macros?
Also I suggest his case studies repo since you are looking at what is possible: https://github.com/dtolnay/case-studies
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What are some creative/advanced uses of macro_rules?
/u/dtolnay has a great case studies repository.
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Hey Rustaceans! Got an easy question? Ask here (29/2021)!
Once you have the basics down, read dtolnay's case studies. They show how to do advanced stuff with easy macros.
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println use `Debug` if argument is not `Display`
If you were writing your own println macro, you might be able to get away with this kind of hack: https://github.com/dtolnay/case-studies/blob/master/autoref-specialization/README.md
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Hey Rustaceans! Got an easy question? Ask here (11/2021)!
You can use "Autoref-based stable specialization" or use/mimic the impls crate.
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Why I gave up on Rust (for now)
With a subset of specialization likely riding the trains soon and a workaround available, why would you give up?
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Hey Rustaceans! Got an easy question? Ask here (10/2021)!
this works since values and types are in different namespaces (see: Rusts Universes or dtolnay's Case Study about "Unit struct with type parameters")
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Hey Rustaceans! Got an easy question? Ask here (53/2020)!
To do this with traits you would need specialization but since you are using macros you should be able to use "Autoref-based stable specialization". Here is a playground which uses the latter approach to implement the wanted macro without using any nightly features.
What are some alternatives?
godot-wasm-engine
rocket-auth-login - Authentication and login processing for Rust's Rocket web framework. Demonstrates a working example of how to authenticate users and process login as well as how to handle logging out.
cargo2nix - Granular builds of Rust projects for Nix
xargo - The sysroot manager that lets you build and customize `std`
cap-std - Capability-oriented version of the Rust standard library
proc-macro-crate - `$crate` in procedural macros.
kani - Kani Rust Verifier
mini-redis - Incomplete Redis client and server implementation using Tokio - for learning purposes only
cargo-deny - ❌ Cargo plugin for linting your dependencies 🦀
parquet2 - Fastest and safest Rust implementation of parquet. `unsafe` free. Integration-tested against pyarrow
awesome-wasm-runtimes - A list of webassemby runtimes
cargo-expand - Subcommand to show result of macro expansion