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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 11 Feb 2015

      Oh, ok. I just solved it by reordering my type parameters.

      1 reply 0 retweets 1 like
    2. Ofer Ron‏ @oferron 11 Feb 2015
      Replying to @propensive

      @propensive which is one of the biggest compiler annoyances out there

      2 replies 0 retweets 0 likes
    3. Jon Pretty‏ @propensive 11 Feb 2015
      Replying to @oferron

      @oferron It's annoying because I don't understand why it makes a difference in this particular case. Usually I can see a reason... :(

      1 reply 0 retweets 0 likes
    4. Ofer Ron‏ @oferron 11 Feb 2015
      Replying to @propensive

      @propensive I had a case (might be fixed now) where reordering the implicit params was the key to getting stuff to compile.

      2 replies 0 retweets 0 likes
    5. Jon Pretty‏ @propensive 11 Feb 2015
      Replying to @oferron

      @oferron Yeah, implicit parameters work like ordinary parameter *blocks* - evaluated in turn. My problem was with *type* parameters... :(

      1 reply 0 retweets 0 likes
    6. Jon Pretty‏ @propensive 11 Feb 2015
      Replying to @propensive

      @oferron It's rare that a different order of implicit parameters will make a difference, but it does sometimes...

      1 reply 0 retweets 0 likes
    7. Ofer Ron‏ @oferron 11 Feb 2015
      Replying to @propensive

      @propensive I know implicit are evaluated in blocks, but the order shouldn't matter. Or at least be consistent.

      2 replies 0 retweets 0 likes
      Jon Pretty‏ @propensive 11 Feb 2015
      Replying to @oferron

      @oferron But you can have one implicit that's resolved on a constraint introduced by a previous one.

      6:33 AM - 11 Feb 2015
      0 replies 0 retweets 0 likes

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