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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. This Tweet is unavailable.
    2. Emily Pillmore‏ @bkmlep 10 Oct 2018
      Replying to @jdegoes

      What are Types? Kinds? Constraints? Propositions? Are these always values?

      1 reply 0 retweets 5 likes
    3. This Tweet is unavailable.
    4. Jon Pretty‏ @propensive 11 Oct 2018
      Replying to @jdegoes

      I'm not sure I agree so universally. Values are granted a lot of power, and consequently need to be evaluated (implying some sort of runtime). Having more constraints on what these things can do can remove the need for evaluation (and its fragility, partiality and performance).

      1 reply 0 retweets 3 likes
    5. Jon Pretty‏ @propensive 11 Oct 2018
      Replying to @propensive @jdegoes

      c.f. reflection macros, where types are values. But having said that, one person's compiletime is the next person's runtime!

      3 replies 0 retweets 0 likes
    6. Christophe Calvès‏ @chrilves 11 Oct 2018
      Replying to @propensive @jdegoes

      Is it really types as values? I though it was much more AST as value.

      1 reply 0 retweets 1 like
      Jon Pretty‏ @propensive 11 Oct 2018
      Replying to @chrilves @jdegoes

      You get types as values, too.

      7:25 AM - 11 Oct 2018 from Scotland, United Kingdom
      0 replies 0 retweets 0 likes

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