#crystal-lang on 2016-05-16 — 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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05:36 <emancu> asterite: I wonder, if Hash-oriented programming is something that it doesn't work, how can I instantiate a new object from the results of a Crystal-DB-based adapter ?

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07:36 <milad> Hi, is there any way to run crystal code from crystal code!? I want to get the advantage of compiling but need to load some plugins(scripts) when I need them. Is it possible?

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08:53 <sdogruyol> milad: it’s possible in theory

09:08 <BlaXpirit> milad, you can run an external process and get its output

09:08 <BlaXpirit> ecr is implemented like this, i think

09:08 <BlaXpirit> but it's a pity there is no compile time code

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09:11 <Guest92641> Thanks

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21:59 <icezimm> hi ppl, I'm totally new to crystal, my first play is to port Uber ruby lib to crystal… I'm trying to make this test pass: https://github.com/fernandes/uber.cr/blob/master/spec/uber/builder_spec.cr#L37

21:59 <icezimm> if someone could give me some tips

22:00 <emancu> icezimm: and what do you have ?

22:01 <emancu> or where is it failing

22:01 <emancu> use https://carc.in/

22:05 <icezimm> emancu: thank you for your reply https://carc.in/#/r/ymh (latest code on my machine)

22:05 <icezimm> I was checking https://github.com/waterlink/spec2.cr to get some ideas

22:06 <emancu> do you need more complex framework ?

22:06 <emancu> * a more complex test framework?

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22:07 <emancu> you are calling the builds method with a Hash(String, Bool)

22:07 <icezimm> no… my idea is `include Uber::Builder` then use builds method to instantiate a specific class, based on options hash

22:08 <emancu> BuilderTest::Song.build({evergreen: true})

22:08 <emancu> you are actually doing it

22:08 <emancu> icezimm: I had the same issue and didn't find a nice solution

22:09 <icezimm> exactly.. this is the first case of Uber ruby lib https://github.com/apotonick/uber/blob/master/test/builder_test.rb#L25

22:09 <emancu> well.. I did but i'm not sure yet

22:09 <icezimm> the test is red, I'm just trying to make it green heheheh

22:10 <emancu> tell me something, does your class needs to have its own instance variables ? or you can just keep a hash as instance variable and access its values ?

22:11 <emancu> I don;t understand why are you doing that

22:11 <emancu> try to change

22:12 <emancu> def builds(&block : Hash(Symbol, String) -> _) into def builds(&block : Hash(Symbol, K) -> _)

22:13 <icezimm> in ./src/uber/builder.cr:23: undefined constant K

22:13 <icezimm> is there any place I can read more about generics / macros instead of docs itself?

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22:16 <icezimm> emancu: I think I need a better understand of generics / macros before keep working on this

22:16 <emancu> you mean besides the docs ?

22:16 <icezimm> yes

22:16 <emancu> no that I know

22:16 <emancu> let me think about it

22:17 <emancu> i think you can do an alias

22:17 <icezimm> I'm feeling I'm doing just trial and error heheh

22:17 <emancu> sometimes it works :P

22:17 <emancu> https://carc.in/#/r/ymj

22:18 <emancu> look, I replaced your Hash(Symbol, String) type by Hash(Symbol, Bool)

22:18 <emancu> which is what you are actually using

22:22 <icezimm> emancu: is there any way to store Proc in a variable to call later?

22:23 <icezimm> now I need to store it in a var and call from class builder heheheh

22:28 <icezimm> emancu: need to go out for a while, brb.. thank you for your attention

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22:38 <emancu> icezimm: yes, this is what I do https://github.com/emancu/crotest/blob/master/src/crotest/context.cr#L4

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23:19 <crystal-gh> [crystal] asterite pushed 1 new commit to master: https://git.io/vrcmw

23:19 <crystal-gh> crystal/master 380d4ea Ary Borenszweig: Fixed #2597: Compiler Error on assigning a class or some subclass to a field, regression from <0.16

23:19 <crystal-gh> [crystal] asterite pushed 1 new commit to master: https://git.io/vrcmo

23:19 <crystal-gh> crystal/master 8027c8d Ary Borenszweig: Merge pull request #2592 from crystal-lang/feature/external_args_names...

23:25 <crystal-gh> [crystal] asterite pushed 1 new commit to master: https://git.io/vrcYs

23:25 <crystal-gh> crystal/master c0b0e3f Ary Borenszweig: Hash: forward initial_capacity to initialize. Fixes #2586 . Fixes #2588

23:36 <crystal-gh> [crystal] asterite pushed 1 new commit to master: https://git.io/vrcOs

23:36 <crystal-gh> crystal/master e61eba2 Ary Borenszweig: Float: use `as` in constants...

23:37 <travis-ci> crystal-lang/crystal#380d4ea (master - Fixed #2597: Compiler Error on assigning a class or some subclass to a field, regression from <0.16): The build passed. https://travis-ci.org/crystal-lang/crystal/builds/130704909

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23:42 <icezimm> emancu: ohhh thank you for the link, I'm gonna read

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23:43 <travis-ci> crystal-lang/crystal#8027c8d (master - Merge pull request #2592 from crystal-lang/feature/external_args_names): The build passed. https://travis-ci.org/crystal-lang/crystal/builds/130704977

23:49 <travis-ci> crystal-lang/crystal#c0b0e3f (master - Hash: forward initial_capacity to initialize. Fixes #2586 . Fixes #2588): The build passed. https://travis-ci.org/crystal-lang/crystal/builds/130705834

23:58 <travis-ci> crystal-lang/crystal#e61eba2 (master - Float: use `as` in constants): The build has errored. https://travis-ci.org/crystal-lang/crystal/builds/130707533