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propensive's profile
Jon Pretty
Jon Pretty
Jon Pretty
@propensive

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Jon Pretty

@propensive

Supporting Scala through professional training and open-source software. Responsible for Magnolia, Fury, Scala World and Functional Africa.

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propensive.com
Joined July 2010

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    1.  🔴 Lars Hupel‏ @larsr_h 16 Apr 2018

      the speaker just said "we have bi types" 😜😍

      1 reply 0 retweets 4 likes
    2. Jon Pretty‏ @propensive 16 Apr 2018
      Replying to @larsr_h

      Do you know that Scala has (very limited) bivariance?

      1 reply 0 retweets 1 like
    3.  🔴 Lars Hupel‏ @larsr_h 16 Apr 2018
      Replying to @propensive

      You mean, like for phantom type variables? Not sure, didn't know you could do that.

      1 reply 0 retweets 0 likes
    4. Jon Pretty‏ @propensive 16 Apr 2018
      Replying to @larsr_h

      No, I mean `this.type`. Not very interesting...

      2 replies 0 retweets 0 likes
    5.  🔴 Lars Hupel‏ @larsr_h 16 Apr 2018
      Replying to @propensive

      I don't think I understand. Can you show an example?

      1 reply 0 retweets 0 likes
    6. Jon Pretty‏ @propensive 16 Apr 2018
      Replying to @larsr_h

      No... ;) It was just something I read in the Typers.scala source. There's a nice ASCII-art picture of a lattice in there too, IIRC...

      1 reply 0 retweets 1 like
    7.  🔴 Lars Hupel‏ @larsr_h 16 Apr 2018
      Replying to @propensive

      Ah, Typers.scala. Some nice, light bed-time reading material.

      1 reply 0 retweets 2 likes
      Jon Pretty‏ @propensive 16 Apr 2018
      Replying to @larsr_h

      With all credit to the compiler team, that's as close to accurate as you can imagine...

      3:12 AM - 16 Apr 2018 from Krakow, Poland
      0 replies 0 retweets 0 likes

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