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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 9 Aug 2017
      Replying to @oxnrtr @missingfaktor

      Are you aware of Dotty's syntactic sugar for enums?

      1 reply 0 retweets 1 like
    2. soc‏ @oxnrtr 9 Aug 2017
      Replying to @propensive @missingfaktor

      Yep. It's a complete&utter trainwreck. Having made multiple enum impls over the years, I'd have died in shame proposing something like that.

      1 reply 0 retweets 0 likes
    3. Jon Pretty‏ @propensive 9 Aug 2017
      Replying to @oxnrtr @missingfaktor

      Is the problem that they don't quite offer a complete replacement for sealed traits and case classes?

      1 reply 0 retweets 0 likes
    4. soc‏ @oxnrtr 9 Aug 2017
      Replying to @propensive @missingfaktor

      I think I found 6 or 7 design mistakes. Each significant enough to outright reject this proposal. But SIP process doesn't apply anyway.

      1 reply 0 retweets 0 likes
    5. Jon Pretty‏ @propensive 9 Aug 2017
      Replying to @oxnrtr @missingfaktor

      Not to Dotty, it doesn't... but Martin did change the proposal in response to feedback on his PR, so it's not like it was a closed process.

      1 reply 0 retweets 0 likes
    6. soc‏ @oxnrtr 9 Aug 2017
      Replying to @propensive @missingfaktor

      I don't think any changes can fix it. It's not only what it does, but that the whole thing is a confused, sprawling, over-complicated mess.

      2 replies 0 retweets 0 likes
    7. Jon Pretty‏ @propensive 9 Aug 2017
      Replying to @oxnrtr @missingfaktor

      I think the risk is that it provides concise support for something you can already do, and costs one feature, and less syntax uniformity.

      1 reply 0 retweets 0 likes
    8. soc‏ @oxnrtr 9 Aug 2017
      Replying to @propensive @missingfaktor

      I made some comments about the issues with Dotty's enum design a while ago. Repeating well-known mistakes over and over–this lang is doomed.pic.twitter.com/l1apcbHALL

      1 reply 2 retweets 1 like
    9. Jon Pretty‏ @propensive 9 Aug 2017
      Replying to @oxnrtr @missingfaktor

      Thanks - that's a more constructive teardown, even though I don't agree with all of it. :)

      2 replies 0 retweets 0 likes
    10. soc‏ @oxnrtr 9 Aug 2017
      Replying to @propensive @missingfaktor

      No problem! Remember that these are only the well-known mistakes–i.e. we already made them in the past. How many new, unknown ones? No idea.

      2 replies 0 retweets 0 likes
      Jon Pretty‏ @propensive 9 Aug 2017
      Replying to @oxnrtr @missingfaktor

      Yes, but that's a vague argument against any change, so I don't think it really helps given that it would apply to any change proposed.

      6:21 AM - 9 Aug 2017
      1 reply 0 retweets 0 likes
        1. New conversation
        1. soc‏ @oxnrtr 9 Aug 2017
          Replying to @propensive @missingfaktor

          I don't buy that. You _can_ design new features while avoiding well-known mistakes. People just have to care enough to actually do it.

          1 reply 0 retweets 0 likes
        2. Jon Pretty‏ @propensive 9 Aug 2017
          Replying to @oxnrtr @missingfaktor

          Sorry, I was arguing against the second part of your tweet about "unknown unknowns".

          1 reply 0 retweets 0 likes
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