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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. Travis Brown‏ @travisbrown 5 Apr 2014

      One thing I can agree with from @tnurkiewicz's @scalarconf talk: pattern matching on types is bad news.

      5 replies 5 retweets 8 likes
    2. Jon Pretty‏ @propensive 5 Apr 2014
      Replying to @travisbrown

      @travisbrown It's better than is/asInstanceOf because it combines both in one step. Though unfortunately makes you feel comfortable doing so

      1 reply 0 retweets 1 like
    3. Miles Sabin‏ @milessabin 5 Apr 2014
      Replying to @propensive

      @propensive ahem ... if you must type case use shapeless's Typeable. /cc @travisbrown

      1 reply 0 retweets 1 like
    4. Jon Pretty‏ @propensive 5 Apr 2014
      Replying to @milessabin

      @milessabin Have you got an example? @travisbrown

      1 reply 0 retweets 0 likes
    5. Miles Sabin‏ @milessabin 5 Apr 2014
      Replying to @propensive

      . @propensive Sure ... #shapeless's Typeable in action: https://gist.github.com/milessabin/9991675 … /cc @travisbrown

      2 replies 2 retweets 11 likes
    6. Jon Pretty‏ @propensive 5 Apr 2014
      Replying to @milessabin

      @milessabin Thanks! That's quite... straightforward. :) @travisbrown

      1 reply 0 retweets 0 likes
    7. Miles Sabin‏ @milessabin 5 Apr 2014
      Replying to @propensive

      @propensive see also TypeCase (an extractor defined in terms of Typeable) for in pattern matching: https://github.com/milessabin/shapeless/blob/e6c5e714adede724ac319426b32b6c1aeb6c0b12/core/src/test/scala/shapeless/typeable.scala#L348 … /cc @travisbrown

      1 reply 2 retweets 1 like
      Jon Pretty‏ @propensive 5 Apr 2014
      Replying to @milessabin

      @milessabin Nice. Seeing `typed[Foo]` makes me wish type parameters on case matches would get implemented, though... @travisbrown

      6:52 AM - 5 Apr 2014
      1 reply 0 retweets 0 likes
        1. Miles Sabin‏ @milessabin 5 Apr 2014
          Replying to @propensive

          @propensive Yes, indeed. /cc @travisbrown

          0 replies 0 retweets 0 likes
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