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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 Jan 26

      Jon Pretty Retweeted Jon Pretty

      Thanks to everyone who replied to this. It was interesting hearing all your thoughts! I've decided to use *incarnation* to distinguish type instantiation from value instantiation on http://scala.zone . This is non-standard, but I hope others can find it a useful distinction!https://twitter.com/propensive/status/1354080968810897408 …

      Jon Pretty added,

      Jon Pretty @propensive
      What English word would you use to describe a particular example of a type constructor, in the sense that `List[Int]` and `List[String]` are examples of `List`s? I'd like to avoid calling them "examples" if possible.
      Show this thread
      1 reply 2 retweets 8 likes
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    2. Jon Pretty‏ @propensive Jan 26

      Thanks to @ndasriaux who suggested it! "Variant" was a close second, but "incarnation" is barely used in any related contexts, and has the right nuance. My only concern is that it sounds like a canonical term, when it isn't (yet). So I'll just have to explain that in the course.

      2 replies 0 retweets 2 likes
      Show this thread
    3. Jon Pretty‏ @propensive Jan 26

      By the way, if anyone has a good reason why I shouldn't use "incarnation", it's not too late to stop me, and I'll just go with "variant" instead!

      2 replies 0 retweets 0 likes
      Show this thread
    4. Andrea Mocci  🇪🇺@ 🇨🇭‏ @andreamocci Jan 26
      Replying to @propensive

      Unsure if someone already reported this, but I just recalled that #Eiffel uses the term "derivation", and argues against the use of instantiation for the same reason that you mentioned in your first post. Quite non-standard term though... See http://se.ethz.ch/~meyer/ongoing/etl/generic.pdf …pic.twitter.com/Hi6tG1p4ps

      1 reply 0 retweets 1 like
      Jon Pretty‏ @propensive Jan 26
      Replying to @andreamocci

      Oh, I'm glad I'm not alone in my concern about "instantiation"! Derivation (of the generic variety) obviously has its own meaning over in Scala, so I wouldn't choose that, but I can see why Eiffel chose it.

      2:39 PM - 26 Jan 2021 from Krakow, Poland
      0 replies 0 retweets 0 likes

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