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sgrif's profile
Miss Dada 🏳️‍⚧️
Miss Dada 🏳️‍⚧️
Miss Dada  🏳️‍⚧️
@sgrif

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Miss Dada  🏳️‍⚧️

@sgrif

Co lead of the http://crates.io  team. Creator of @dieselframework. Former host of @_bikeshed and @_yakshave. Former Rails comitter. Enby. they/them

Albuquerque, NM
patreon.com/seantheprogram…
Joined November 2008

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    1. Miss Dada  🏳️‍⚧️‏ @sgrif Jun 7
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      Yes I'm sure if I add more `+ '_` it will work, thanks rustc.pic.twitter.com/myR96kPuEU

      2 replies 0 retweets 26 likes
      Show this thread
    2. Miss Dada  🏳️‍⚧️‏ @sgrif Jun 7
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      The lifetime actually needed to go on the trait object in `Box` (which doesn't have dyn because it was written before that was a thing). /cc @ekuber

      1 reply 0 retweets 4 likes
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    3. Esteban K –  🦀 ⚙️@home‏ @ekuber Jun 7
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      Replying to @sgrif

      Can you give me a repro? I've been touching this recently https://github.com/rust-lang/rust/pull/72804 …, but it might not cover your case.

      1 reply 0 retweets 1 like
    4. Miss Dada  🏳️‍⚧️‏ @sgrif Jun 7
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      Replying to @ekuber

      Let me see if I can whip one up really quick

      1 reply 0 retweets 1 like
    5. Miss Dada  🏳️‍⚧️‏ @sgrif Jun 7
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      Replying to @sgrif @ekuber

      Honestly thought I'd be able to pare it down more than this. The intermediate iter struct is important to get it to give the bad suggestion. Couldn't reduce down to returning `self.0.iter()` directly. https://play.rust-lang.org/?version=stable&mode=debug&edition=2018&gist=62414e75e13830af0ae63570662e0385 …

      1 reply 0 retweets 0 likes
    6. Miss Dada  🏳️‍⚧️‏ @sgrif Jun 7
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      Replying to @sgrif @ekuber

      With the unrelated compiler error removed https://play.rust-lang.org/?version=stable&mode=debug&edition=2018&gist=2b665a6403bd4fa87ea51da5230550d8 …

      1 reply 0 retweets 1 like
    7. Esteban K –  🦀 ⚙️@home‏ @ekuber Jun 7
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      Replying to @sgrif

      I see what happens... The suggestion is currently naive and only works well if there's only one inferred 'static, but here there are two and I wrote no code to account for them.

      1 reply 0 retweets 3 likes
    8. Esteban K –  🦀 ⚙️@home‏ @ekuber Jun 7
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      Replying to @ekuber @sgrif

      Great repro case, I'll see if I can do something about it.

      1 reply 0 retweets 4 likes
    9. Miss Dada  🏳️‍⚧️‏ @sgrif Jun 7
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      Replying to @ekuber

      Yeah luckily this was easy to spot at the time because the code (written before impl trait and '_) was previously returning `Box<dyn Iterator<Box<dyn Stage + 'a>> + 'a>`. I was just curious if I could omit any/both of those lifetimes now.

      1 reply 0 retweets 1 like
    10. Miss Dada  🏳️‍⚧️‏ @sgrif Jun 7
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      Replying to @sgrif @ekuber

      Ironically you *can* omit the one the compiler suggests

      1 reply 0 retweets 1 like
      Miss Dada  🏳️‍⚧️‏ @sgrif Jun 7
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      Replying to @sgrif @ekuber

      Anyway I'm going to just keep following the compiler's suggestions. I'm sure it'll work eventually.

      4:13 PM - 7 Jun 2020
      • 1 Like
      • Esteban K – 🦀⚙️@home
      1 reply 0 retweets 1 like
        1. New conversation
        1. Esteban K –  🦀 ⚙️@home‏ @ekuber Jun 7
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          Replying to @sgrif

          I'm happy that this works https://play.rust-lang.org/?version=stable&mode=debug&edition=2018&gist=42d893e4d8b401d160ed8f94c55228e1 … but I'm still convinced that the implicit 'static when dealing with traits was an ergonomic mistake.

          1 reply 0 retweets 3 likes
        2. Miss Dada  🏳️‍⚧️‏ @sgrif Jun 7
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          Replying to @ekuber

          Yes I 100% agree. I'm also pretty sure it's not really documented anywhere. I learned about it from some friends on the lang team

          1 reply 0 retweets 1 like
        3. 17 more replies

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