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pcwalton's profile
Patrick Walton
Patrick Walton
Patrick Walton
@pcwalton

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Patrick Walton

@pcwalton

Research engineer at Mozilla

San Francisco, CA
pcwalton.github.io
Joined November 2009

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    Patrick Walton‏ @pcwalton 28 Oct 2019
    • Report Tweet
    • Report NetzDG Violation

    I have to say, I really don’t understand when people talk about having to spend hours thinking about the borrow checker before they write any program in Rust. That just…doesn’t happen for me, or for anyone else I know.

    8:32 PM - 28 Oct 2019
    • 3 Retweets
    • 88 Likes
    • nyanpasu64 Pineapple Pacce Jason Mulligan Jonathan Castello lambdageek🚴‍♂️🏳️‍🌈 Jarred Nicholls scottjmaddox MBL Bruce
    17 replies 3 retweets 88 likes
      1. New conversation
      2. Jordan Rose‏ @UINT_MIN 28 Oct 2019
        • Report Tweet
        • Report NetzDG Violation
        Replying to @pcwalton

        This is how I feel about C pointers. Partly I just get it, and partly I learned it so long ago that I don't really remember if it was hard. I can't say the borrow checker has been easy, starting out. But I program by trying things, not by making it correct up front.

        1 reply 0 retweets 7 likes
      3. Jordan Rose‏ @UINT_MIN 28 Oct 2019
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        Replying to @UINT_MIN @pcwalton

        Jordan Rose Retweeted Daniel Dunbar

        If you're /not/ someone who programs like that, I can see how it'd be frustrating. More so in the days before inferred result lifetimes, though. See also:https://twitter.com/daniel_dunbar/status/1187062810628382721 …

        Jordan Rose added,

        Daniel Dunbar @daniel_dunbar
        1. I often think by writing code, 2. I write code pretty fast, 3. I prefer to think by prototyping, 4. Not everyone thinks the way I do 5. 💥 I wish I'd understood sooner the importance of communicating in a form others understand.
        1 reply 0 retweets 2 likes
      4. 2 more replies
      1. rektide de la fay‏ @rektide 28 Oct 2019
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        Replying to @pcwalton

        the one & only case i've seen of outright announced _failure_ i've seen is a Wayland desktop window manager Way-Cooler, who gave up after feeling constraints were irreconcileable. my heart yearns for smart folks to convene & follow up on this one. http://way-cooler.org/blog/2019/04/29/rewriting-way-cooler-in-c.html …

        0 replies 0 retweets 3 likes
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      1. New conversation
      2. Alexander Larsson‏ @gnomealex 28 Oct 2019
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        Replying to @pcwalton

        That just means you’re used to thinking about ownership in C/C++. Rust ownership is also very natural to me, but many play hard and fast with ownership in other languages.

        2 replies 0 retweets 4 likes
      3. Alexander Larsson‏ @gnomealex 28 Oct 2019
        • Report Tweet
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        Replying to @gnomealex @pcwalton

        Also I think it depends on what kind of work you do atm. Rust is not great for exploratory coding.

        1 reply 0 retweets 0 likes
      4. 1 more reply
      1. Jean-Marie Comets  🇫🇷‏ @jmcomets 28 Oct 2019
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        Replying to @pcwalton

        I've had issues with the BCK twice: - when starting with Rust, that I regard as a switch of mindset vs GC'd languages - when implementing a polymorphic trie, that I regard as being too "clever" for my own good

        0 replies 0 retweets 3 likes
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      1. New conversation
      2. papa bifunctors‏ @phaazon_ 29 Oct 2019
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        Replying to @pcwalton

        Mostly the hardest thing I wrote with the borrow checker was a strict using three separate lifetimes. But it took me 5 minutes to get how the lifetimes should be expressed.

        1 reply 0 retweets 0 likes
      3.  ✨Elina  🧙‍♀️ conjuring virtual plants 🌟‏ @logicsoup 29 Oct 2019
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        Replying to @phaazon_ @pcwalton

        My first issue with the borrow checker was when I wanted to "give a pointer to a struct which implements a certain trait", then learned about trait objects, then used lifetimes, & wanted to use it outside of the scope. Then I fell in love with Rust 😁

        2 replies 0 retweets 3 likes
      4. 4 more replies
      1. New conversation
      2. Yehuda Katz  🥨‏Verified account @wycats 29 Oct 2019
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        Replying to @pcwalton

        How does it even work to think about it before you start?

        1 reply 0 retweets 1 like
      3. BrendanEich‏Verified account @BrendanEich 29 Oct 2019
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        Replying to @wycats @pcwalton

        Are people thinking as if writing C/C++?

        0 replies 0 retweets 1 like
      4. 5 more replies

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