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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. Nicolas Rinaudo‏ @NicolasRinaudo 16 Apr 2017

      stdlib doc says some platforms don't support structural types - I'm assuming scala.js, but can't find concrete evidence of it. Anyone knows?

      1 reply 0 retweets 0 likes
    2. Jon Pretty‏ @propensive 16 Apr 2017
      Replying to @NicolasRinaudo

      Most of the reflection API is not supported on Scala.JS, and it's required for structural types to work.

      1 reply 0 retweets 0 likes
    3. Nicolas Rinaudo‏ @NicolasRinaudo 17 Apr 2017
      Replying to @propensive

      That was my assumption, but no documentation I could find states it bluntly. I thought maybe JS magic?

      1 reply 0 retweets 0 likes
    4. Jon Pretty‏ @propensive 17 Apr 2017
      Replying to @NicolasRinaudo

      I suspect the author was thinking "this doesn't work specifically for scala.js, but it would be more correct to make a more general claim."

      1 reply 0 retweets 0 likes
    5. Nicolas Rinaudo‏ @NicolasRinaudo 17 Apr 2017
      Replying to @propensive

      Sorry, I meant that scala.js doesn't state it explicitely that I could find, even in the list of differences with JVM scala

      1 reply 0 retweets 0 likes
    6. Jon Pretty‏ @propensive 17 Apr 2017
      Replying to @NicolasRinaudo

      There's this: http://www.scala-js.org/doc/semantics.html#reflection …

      1 reply 0 retweets 0 likes
    7. Nicolas Rinaudo‏ @NicolasRinaudo 17 Apr 2017
      Replying to @propensive

      But this only mentions reflection, not structural types. Do we now assume everybody knows one relies on the other?

      2 replies 0 retweets 0 likes
    8. Jon Pretty‏ @propensive 17 Apr 2017
      Replying to @NicolasRinaudo

      Though you can't use structural types without enabling the language flag, ...can you?

      1 reply 0 retweets 0 likes
    9. Nicolas Rinaudo‏ @NicolasRinaudo 17 Apr 2017
      Replying to @propensive

      Is it not just a warning? I need to check - I don't use them, but writing slides on scala best practice and need concrete examples

      1 reply 0 retweets 0 likes
      Jon Pretty‏ @propensive 17 Apr 2017
      Replying to @NicolasRinaudo

      I think it probably is a warning, but that should be enough to alert you, I think. It'd still be useful to mention STs in the Scala.JS docs.

      6:46 AM - 17 Apr 2017
      2 replies 0 retweets 0 likes
        1. yes man‏ @courieti 17 Apr 2017
          Replying to @propensive @NicolasRinaudo

          structural type should not be a problem for dynamic language ?

          0 replies 0 retweets 0 likes
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        1. Nicolas Rinaudo‏ @NicolasRinaudo 17 Apr 2017
          Replying to @propensive

          The thing is - I'm not 100% convinced scala.js doesn't support structural types. It seems like something you could check in ja

          2 replies 0 retweets 0 likes
        2. Nicolas Rinaudo‏ @NicolasRinaudo 17 Apr 2017
          Replying to @NicolasRinaudo @propensive

          Js, obviously, not ja

          0 replies 0 retweets 0 likes
          3. End of conversation

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