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rustlang's profile
Rust Language
Rust Language
Rust Language
@rustlang

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Rust Language

@rustlang

A programming language empowering everyone to build reliable and efficient software.

rust-lang.org
Joined July 2010

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    1. fasterthanlime  🍉‏ @fasterthanlime 17 May 2019
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      ok #rustlang we async nowpic.twitter.com/uBNolBjM5F

      9 replies 36 retweets 126 likes
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    2. Julian Coleman‏ @_juliancoleman 18 May 2019
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      Replying to @fasterthanlime @rustlang

      I'm a bit confused as why @rustlang needs this. What's the benefit of this syntax over Futures, thread, and other concurrency methods? This seems a bit too high level for a systems language. Could you provide some insight perhaps?

      2 replies 0 retweets 0 likes
    3. fasterthanlime  🍉‏ @fasterthanlime 18 May 2019
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      Replying to @_juliancoleman @rustlang

      this is all (extremely nice) sugar for futures. It's not new allocation-heavy or cpu-heavy abstractions. Playing around with it quickly reveal corner cases that make it very clear that there's no additional magic going on here. All rules still apply!

      4 replies 0 retweets 3 likes
    4. Julian Coleman‏ @_juliancoleman 18 May 2019
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      Replying to @fasterthanlime @rustlang

      Very interesting! That's actually great to know. I come from a NodeJS background and async/await is also just syntactic sugar around Promises (or Futures in Rust), which is just syntactic sugar for another underlying language-core function

      1 reply 0 retweets 0 likes
      Rust Language‏ @rustlang 18 May 2019
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      Replying to @_juliancoleman @fasterthanlime

      One more major difference you should know: in JS, promises start executing upon creation. In rust, you explicitly put the futures chain onto the reactor, and they don’t start till then

      10:26 AM - 18 May 2019
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        1. Alex Regueiro‏ @alexreg90 18 May 2019
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          Replying to @rustlang @_juliancoleman @fasterthanlime

          The way futures are implemented in Rust means it's also possible to await them from synchronous code, which is very useful sometimes.

          0 replies 0 retweets 0 likes
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