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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. Jon Pretty‏ @propensive 23 Mar 2018

      Discovery: Scala's `unary_?` methods are somewhat (but not completely) unique in that they can be defined to take an implicit parameter block which you can't call explicitly, either deliberately (without rewriting) or by accident.

      2 replies 0 retweets 8 likes
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    2. Jon Pretty‏ @propensive 23 Mar 2018

      e.g. object Foo { def unary_~[T](implicit bar: Bar[T]) = 42 } ~Foo > 42 // but nowhere you can specify `T` or an implicit `Bar[T]`

      2 replies 0 retweets 2 likes
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    3. Jakub Kozłowski‏ @kubukoz 23 Mar 2018
      Replying to @propensive

      `Foo.unary_~[String]`?

      1 reply 0 retweets 1 like
      Jon Pretty‏ @propensive 23 Mar 2018
      Replying to @kubukoz

      Yep, that was what I was trying to say when I said "rewriting". @StefanZeiger also just pointed out that this is true of all infix operators.

      6:23 AM - 23 Mar 2018
      1 reply 0 retweets 0 likes
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        1. Jakub Kozłowski‏ @kubukoz 23 Mar 2018
          Replying to @propensive @StefanZeiger

          I see. Is `(actor ! message)(implicits)` rewriting too?

          1 reply 0 retweets 0 likes
        2. Jon Pretty‏ @propensive 23 Mar 2018
          Replying to @kubukoz @StefanZeiger

          I don't want to know if that works... :/

          2 replies 0 retweets 1 like
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