impulse VS prusti-dev

I you use Tailwind and React, you might like Impulse[1] (disclaimer: I made it and use it almost daily)

Not only does it provide means for visual editing (for Tailwind only), but it also saves all changes to your code.

Free and open source.

[1] https://impulse.dev/

I've been working exclusively on this project for half a year and... I don't really know where it's going. One of the primary goals from the beginning was to make a product I could use for most of my UI work. And oh my God, have I achieved that. Having used Impulse regularly for months (including designing Impulse itself and impulse.dev), I can't imagine going back.

You can look at a few demo videos on the website https://impulse.dev/

Trying to design some elements intuitively, just by setting classes and seeing how it looks; also prototyping. With Impulse, I can just cycle through all possible font-sizes / margins / paddings / shades of a color / you name it. I've designed the whole impulse.dev website with that approach and I don't wanna go back, it's just so much faster and fun even compared to writing code on two monitors with 10 years of experience. :D

> 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.

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

This is called refinement types and prusti might be the project you saw.

But there's also a lot of exciting work around formal verification like Prusti.

prusti

Efforts: seL4, Project Everest, the Prossimo project of the ISRG, Let's Encrypt, and Prusti for the Rust language

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