#crystal-lang on 2016-05-14 — irc logs at freenode.irclog.whitequark.org

2016-05-11 12:19 jhass changed the topic of #crystal-lang to: The Crystal programming language | http://crystal-lang.org | Crystal 0.16.0 | 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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06:25 <pawnbox> latest crystal doesn't support class vars for generic classes, right?

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09:14 <BlaXpirit> pawnbox, apparently not.

09:15 <BlaXpirit> doesn't support class vars for generic classes

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11:27 <crystal-gh> [crystal] mosop opened pull request #2593: Rescue doesn't accept global type path (master...rescue_accepts_global_type_path) https://git.io/vrskA

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13:23 <|2701> is crystal doing to have anything like drb?

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13:25 <jhass> good question, I guess RPC libs will happen as shards first and if one turns out extremely popular we might pull it into stdlib

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14:07 <|2701> gotcha

14:07 <|2701> you know a great name for that would be refract

14:08 <|2701> like refracting light through the crystal into somewhere else

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20:50 <crystal-gh> [crystal] miketheman opened pull request #2595: Add the latest xcode image for OSX builds (master...miketheman/newer_osx_build) https://git.io/vrsVp

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23:04 <emancu> is there any way to get all the instance variables and its values on runtime ?

23:13 <jhass> you can get a list of instance variables at compile time and using that list generate code to get the values at runtime

23:16 <jhass> emancu: https://carc.in/#/r/ygu

23:16 <emancu> jhass: interesting... thanks!

23:17 <emancu> i will play around that snippet and see if it helps me

23:17 <emancu> jhass: because I would like to parametrise the `@type`

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23:18 <jhass> keep in mind you can't pass a runtime value to the macro language as macros are run at compile time so the runtime value is unknown

23:19 <emancu> i know

23:20 <emancu> i want to have a class/module that inspects into other class instance vars

23:20 <emancu> class InspectCar

23:20 <emancu> inspect_class Car

23:20 <emancu> end

23:21 <emancu> inspect_class would be a macro that gets all the vars

23:22 <jhass> should work thanks to the new http://crystal-lang.org/api/Macros/Path.html#resolve%3AASTNode-instance-method

23:27 <emancu> awesome.. I will take a look

23:32 <emancu> jhass: remember the tag for macros to print the generated code ?

23:33 <emancu> `{% debug %}` or something

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23:37 <jhass> yeah, with parens

23:37 <jhass> {{debug()}} or {% debug() %}

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23:41 <emancu> right.. parens

23:41 <emancu> thx

23:56 <emancu> jhass: still there ?