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TimSweeneyEpic's profile
Tim Sweeney
Tim Sweeney
Tim Sweeney
@TimSweeneyEpic

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Tim Sweeney

@TimSweeneyEpic

Epic Games founder & CEO

epicgames.com
Joined August 2013

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    1. Allen Wirfs-Brock‏ @awbjs 28 Aug 2018
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      I think that programmers of every prototype-based programming language find that they eventually need to develop a pattern for class-like abstractions. Here is the one for NewtonScript: http://waltersmith.us/newton/Class-based%20NewtonScript%20Programming.pdf …

      4 replies 7 retweets 45 likes
    2. Michael Haufe‏ @mlhaufe 28 Aug 2018
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      Replying to @awbjs

      It would be a significant area to dig into to: https://web.archive.org/web/20070823070757/http://www.dekorte.com:80/docs/protos/ …

      1 reply 0 retweets 0 likes
    3. Michael Haufe‏ @mlhaufe 28 Aug 2018
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      Replying to @mlhaufe @awbjs

      Also, how does the Treaty of Orlando come into play?https://www.deepdyve.com/lp/association-for-computing-machinery/treaty-of-orlando-C0KfgwLV1q …

      1 reply 0 retweets 0 likes
    4. Allen Wirfs-Brock‏ @awbjs 28 Aug 2018
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      Replying to @mlhaufe

      I’ve always understood that the point of the Treaty of Orlando was that classes and prototypes are duals so there is no point in fighting about which is better.

      2 replies 0 retweets 0 likes
    5. Tim Sweeney‏ @TimSweeneyEpic 28 Aug 2018
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      Replying to @awbjs @mlhaufe

      There’s one bit of evidence to suggest that classes are more natural. In a pure functional language, implicit this-binding happens at instantiation time using the same mechanism as lambda variable capture.

      1 reply 0 retweets 1 like
      Tim Sweeney‏ @TimSweeneyEpic 28 Aug 2018
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      Replying to @TimSweeneyEpic @awbjs @mlhaufe

      In this context, prototypes break: If you create a prototype, this-binding occurs at the prototype deceleration site. Sure you can create a copy with some fields (functions, variables) replaces with new values, but the old fields will be stuck with the old this-binding.

      6:50 PM - 28 Aug 2018
      1 reply 0 retweets 0 likes
        1. Tim Sweeney‏ @TimSweeneyEpic 28 Aug 2018
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          Replying to @TimSweeneyEpic @awbjs @mlhaufe

          Object oriented programming has a completely clear purely functional subset, but it’s only sensible with the class abstraction. There’s no way to capture prototypes without explicit this-plumbing at every call site.

          0 replies 0 retweets 0 likes
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