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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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    1. Patrick Walton‏ @pcwalton 11 Oct 2018
      • Report Tweet
      • Report NetzDG Violation

      It’s amazing how people will jump on any Rust bug to claim it’s unsafe and you might as well just use C++, but C++’s lifetime checker—which is broken by design—means that C++ is finally safe and we can stop worrying.

      5 replies 14 retweets 80 likes
    2. postmodern girl‏ @strega_nil 11 Oct 2018
      • Report Tweet
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      Replying to @pcwalton

      I doubt those two groups are the same people...

      1 reply 0 retweets 1 like
    3. postmodern girl‏ @strega_nil 11 Oct 2018
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      Replying to @strega_nil @pcwalton

      It's also not broken by design. It's unsound. That's a very large distinction.

      1 reply 0 retweets 1 like
    4. Patrick Walton‏ @pcwalton 11 Oct 2018
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      Replying to @strega_nil

      The point is that if you’re going to consider Rust broken due to soundness bugs, you also logically have to consider C++ broken due to not even trying to be sound.

      1 reply 0 retweets 3 likes
    5. postmodern girl‏ @strega_nil 11 Oct 2018
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      Replying to @pcwalton

      Not really - if I promise soundness, but I am unsound, then I have broken a promise. If I do not promise soundness, and I am unsound, then I have not broken any promises.

      2 replies 0 retweets 3 likes
    6. Patrick Walton‏ @pcwalton 11 Oct 2018
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      Replying to @strega_nil

      This is unresponsive to my point.

      1 reply 0 retweets 1 like
    7. postmodern girl‏ @strega_nil 11 Oct 2018
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      Replying to @pcwalton

      Logically, you can't consider the intent of Rust when considering the "brokenness" of C++. Calling the C++ lifetime checker broken is deliberately misusing the word. Haskell is not broken because the type system is unsound, because Haskell does not promise a sound type system.

      1 reply 0 retweets 4 likes
    8. postmodern girl‏ @strega_nil 11 Oct 2018
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      Replying to @strega_nil @pcwalton

      unsoundness in the Rust checker is due to bugs. unsoundness in the C++ checker is by design.

      2 replies 0 retweets 3 likes
      Patrick Walton‏ @pcwalton 11 Oct 2018
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      Replying to @strega_nil

      Respectfully, I think that you care about whether language teams are “breaking promises” or not, but engineers who care about results instead of language partisanship don’t.

      1:46 PM - 11 Oct 2018
      • 5 Likes
      • Matthew Holloway ☄ Valentin Goșu 🇷🇴🤓🦖🦊 Jakub Matraszek 🚡 Matthew Brunetti Joshua Yanovski
      1 reply 0 retweets 5 likes
        1. postmodern girl‏ @strega_nil 11 Oct 2018
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          Replying to @pcwalton

          I actually don't care that Rust is unsound - I think it is very useful despite that. I care that you're being kind of an asshole about people's hard work. I would be just as annoyed about people calling Rust "broken".

          0 replies 0 retweets 8 likes
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