prusti-dev
creusot
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| prusti-dev | creusot | |
|---|---|---|
| 23 | 4 | |
| 1,460 | 972 | |
| 2.0% | 5.9% | |
| 8.8 | 9.6 | |
| 12 days ago | 3 days ago | |
| Rust | Rust | |
| GNU General Public License v3.0 or later | GNU Lesser General Public License v3.0 only |
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prusti-dev
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Using_Prolog_as_the_AST
> The overall goal would be to figure out classical error conditions like nill pointers deference.
> If I can figure out if a pointer will be nil in some execution branch, there is no reason why a computer cannot do the same.
Note, this is called flow-sensitive typing (also called type narrowing) and I think that typescript does it.
https://en.wikipedia.org/wiki/Flow-sensitive_typing
> I personally would see this as an human race level upgrades. Imagine feeding your code to a CI that spit back something like: "you will have a panic at line 156 when your input is > 4"
A model checker can do that!
See this
https://model-checking.github.io/kani/tutorial-kinds-of-fail...
Other techniques are also possible
https://github.com/viperproject/prusti-dev#quick-example
(Here I could link a lot of things, I just selected two Rust projects to illustrate)
This works better if you are able to provide contracts in your API that says which guarantees you provide. Alternatively, asserts are useful too.
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Programming Languages Going Above and Beyond
You might be interested in the Prusti project, which statically checks for absence of reachable panics, overflows etc. It also allows user-defined specifications such as pre and post-conditions, loop body invariants, termination checking and so on.
https://github.com/viperproject/prusti-dev
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Trying to find a crate that allows you to constrain the value of arguments in various ways via a proc macro
This is called refinement types and prusti might be the project you saw.
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rustc-plugin: A framework for writing plugins that integrate with the Rust compiler
But there's also a lot of exciting work around formal verification like Prusti.
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Is there something like "super-safe" rust?
prusti
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A plan for cybersecurity and grid safety
Efforts: seL4, Project Everest, the Prossimo project of the ISRG, Let's Encrypt, and Prusti for the Rust language
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Prop v0.42 released! Don't panic! The answer is... support for dependent types :)
Wow that sounds really cool! I'm not an expert but does that mean that one day you could implement dependend types or refinement types in Rust as a crate ? I currently only know of tools like: Flux Creusot Kani Prusti
- Prusti: Static Analyzer for Rust
creusot
What are some alternatives?
MIRAI - Rust mid-level IR Abstract Interpreter
rust - Empowering everyone to build reliable and efficient software.
kani - Kani Rust Verifier
agda-stdlib - The Agda standard library
Rudra - Rust Memory Safety & Undefined Behavior Detection
automem - C++-style automatic memory management smart pointers for D
tectonic - A modernized, complete, self-contained TeX/LaTeX engine, powered by XeTeX and TeXLive.
magmide - A dependently-typed proof language intended to make provably correct bare metal code possible for working software engineers.
rustig - A tool to detect code paths leading to Rust's panic handler
arewefastyet - arewefastyet.rs - benchmarking the Rust compiler
rmc - Kani Rust Verifier [Moved to: https://github.com/model-checking/kani]