P Language

This page summarizes the projects mentioned and recommended in the original post on news.ycombinator.com

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  • P

    The P programming language.

  • shuttle

    Shuttle is a library for testing concurrent Rust code (by awslabs)

    They've also developed a library that plugs into their actual Rust code to verify it (rather than writing a secondary model in TLA+ or P, it's easier to verify the actual system source code).

    See https://github.com/awslabs/shuttle and a whitepaper at https://www.amazon.science/publications/using-lightweight-fo...

    Disclaimer: used to work at AWS and had some involvement in this stuff

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  • oil

    Oils is our upgrade path from bash to a better language and runtime. It's also for Python and JavaScript users who avoid shell!

    I watched this a few weeks ago, great talk and exciting tool!

    Can you expand on this answer about whether the generated code is run in production or not?

    https://youtu.be/5YjsSDDWFDY?t=2200

    I would expect that generating USB drivers is just as demanding from a performance perspective as cloud services? You have generally have better and more control over hardware in the latter case?

    Do you know if the P-generated code is still used for USB drivers, or if they moved away from that approach and just use the modeling process?

    The state machines seem pretty low level, so I don't understand in principle why efficient code couldn't be generated from them?

    FWIW I'm using 3 or 4 C/C++ code generators for https://www.oilshell.org, and I've the layer of indirection useful in many ways (although it also can make it harder for people to understand)

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