#crystal-lang on 2016-04-12 — irc logs at freenode.irclog.whitequark.org

2016-04-02 16:56 jhass changed the topic of #crystal-lang to: The Crystal programming language | http://crystal-lang.org | Crystal 0.15.0 | Fund Crystals development: http://is.gd/X7PRtI | Paste > 3 lines of text to https://gist.github.com | GH: https://github.com/crystal-lang/crystal | Docs: http://crystal-lang.org/docs/ | API: http://crystal-lang.org/api/ | Logs: http://irclog.whitequark.org/crystal-lang

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03:29 <crystal-gh> [crystal] asterite opened pull request #2443: Implemented the new "global" type inference algorithm (master...feature/2390_ivars) https://git.io/vVF42

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12:52 <jeromegn> asterite: weird, I recall this errored with ClassVarContainer or something. But now it doesn't. However the result is not what I expected: https://play.crystal-lang.org/#/r/whn

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13:02 <jhass> jeromegn: you can do a little macro trick there to force constant resolution the way you want to https://play.crystal-lang.org/#/r/whq

13:03 <jeromegn> wow, didn't know I could use macros like that

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13:11 <jeromegn> jhass: now I just wonder if that's pattern I just shouldn't use. I could override a method that returns the value instead

13:11 <jeromegn> not sure what's most idiomatic

13:12 <jhass> I'm still unsure myself actually

13:12 <jhass> I think I'd like something like self.class::FOO to work

13:12 <jhass> akin to Ruby

13:14 <jeromegn> at first I used class variables, but they didn't get applied to subclasses

13:15 <jeromegn> so I switched to constants, but it turns out reading constants will only read the once from the originating class

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13:43 <jeromegn> I had to apply your trick quite a bit. I imagine I could create a more global macro to get a constant or return nil

13:52 <jhass> mh, while playing a bit more https://play.crystal-lang.org/#/r/why

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14:40 <crystal-gh> [crystal] Hamdiakoguz opened pull request #2445: Fix sigfault error in XML::Node#namespace_scopes method. (master...xml_namespace_scopes_error) https://git.io/vVNme

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15:23 <ruslux> Hi, crystaceans! It's possible cast string to symbol?

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15:30 <ruslux> Is it*

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15:32 <BlaXpirit> ruslux, no.

15:32 <ruslux> Tnx

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16:19 <asterite> jeromegn: we will fix class variables soon, their type will be inherited in subclasses

16:20 <jeromegn> very cool

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16:51 <steenuil> https://www.youtube.com/watch?v=1HayjZsTnBE AYAYAYA

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18:49 <Rinkana> Is there an easy way to have a shard executable in your PATH while still developing?

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19:17 <BlaXpirit> Rinkana, symlink, for one

19:17 <BlaXpirit> Rinkana, https://github.com/BlaXpirit/crsfml/tree/master/examples/libs

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19:51 <Rinkana> Ah i see. That would work too.

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