LPeg-Parsers
prusti-dev
| LPeg-Parsers | prusti-dev | |
|---|---|---|
| 1 | 23 | |
| 64 | 1,474 | |
| - | 1.6% | |
| 4.7 | 8.5 | |
| 7 months ago | 6 days ago | |
| Lua | Rust | |
| GNU Lesser General Public License v3.0 only | GNU General Public License v3.0 or later |
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LPeg-Parsers
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Six programming languages Iād like to see
When I need to parse text with Lua, the first thing I reach for is LPeg. It's great when you can create a standalone expression to parse, say, an IPv4 address, then reuse that in a larger expression. And the data can be transformed as it's being parsed (say, converting a string of digits into an actual integer value).
I have a bunch of Lua modules based around LPeg: https://github.com/spc476/LPeg-Parsers
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
What are some alternatives?
Pluto.jl - š Simple reactive notebooks for Julia
MIRAI - Rust mid-level IR Abstract Interpreter
sdk - The Dart SDK, including the VM, dart2js, core libraries, and more.
kani - Kani Rust Verifier
Svelte - Cybernetically enhanced web apps
Rudra - Rust Memory Safety & Undefined Behavior Detection
clog - CLOG - The Common Lisp Omnificent GUI
automem - C++-style automatic memory management smart pointers for D
imba - š¤ The friendly full-stack language
tectonic - A modernized, complete, self-contained TeX/LaTeX engine, powered by XeTeX and TeXLive.
roast - š¦ Raku test suite
rust - Empowering everyone to build reliable and efficient software.