Andy Matuschak on Twitter: "@buzz @mrb_bk I get that but do try to stick with it if you can: the unit tests independently expose a broader design problem…" / Twitter

Already lots of discussion Twitter about the design/performance tradeoffs and subtleties of using classes vs. structs, etc.

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got a couple links?

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Discussions like this: twitter.com/andy_matuschak /cc

@andy_matuschak

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Andy Matuschak

@andy_matuschak

· Jun 8, 2014

@maxpow4h Curious: why do you use classes instead of structs for implementations in swiftz?

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My perspectives on OO broadly align with this talk; I think Swift expresses those concepts nicely: destroyallsoftware.com/talks/boundari

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One more question - got a (hopefully concise) bit of Swift code handy that illustrates this?

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You mean the preference for structs and simple data types over classes?

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I like how you phrased that, yeah! Roughly how "Swift's idea of OO" aligns with Gary's talk

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I'm not as sophisticated about this as, say,

@andy_matuschak

, but there is an interesting discussion here: developer.apple.com/library/prerel

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I don't have such a code sample, but that does sound like a good thing for me to write up.

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Tried to watch that talk but have to admit I got a bit lost in the thick cloud of unit testing disquisition.

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Replying to

I get that but do try to stick with it if you can: the unit tests independently expose a broader design problem…

9:03 PM · Jun 9, 2014Twitter for Mac

Replying to

Yeah, part of the problem is I'm a bit distracted right now. I'll try to watch it later.

Replying to

Agree, it's a good talk.

@marick

has good exposition on the same subject in leanpub.com/fp-oo

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