#crystal-lang on 2016-04-26 — 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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00:24 <crystal-gh> [crystal] asterite pushed 2 new commits to master: https://git.io/vwgfx

00:24 <crystal-gh> crystal/master 6ccfb69 Ary Borenszweig: Compiler: make sure to first type right-hand side of assignment to ivar/cvar/global

00:24 <crystal-gh> crystal/master 007e8d5 Ary Borenszweig: Added some return type annotations in class methods

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00:34 <travis-ci> crystal-lang/crystal#6ccfb69 (master - Compiler: make sure to first type right-hand side of assignment to ivar/cvar/global): The build passed. https://travis-ci.org/crystal-lang/crystal/builds/125718301

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05:16 <Guest36091> jhass, what I want is compile time eval

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05:19 <nwmcsween> there seems to be quite a few things I cannot effectively represent in crystal that is relatively simple in other languages, a function pointer (closures are overkill and are heap allocated vs a memory indirection)

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05:40 <nwmcsween> I could do a struct to hold context but crystal has no way (that I know of) to either do compile time eval or #define a tuple such as c xmacros

05:40 <nwmcsween> (so the struct and class methods change when adding or removing a member)

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08:16 <jhass> nwmcsween: you can do compile time code generation, to some extend through the macro languages directly in place and through the run macro method you can run arbitrary crystal code or through the ` macro method any command at all. in both cases the stdout of those is then again parsed as crystal code in the context of the current crystal program

08:16 <jhass> *language

08:17 <jhass> nwmcsween: a proc literal ( -> { }) not referencing any outer variables doesn't have any closure associated and thus no heap allocation

08:22 <jhass> nwmcsween: you can get Proc instances pointing to toplevel functions (fun foo), toplevel methods (def foo), class methods (def self.foo inside module/class) or even instance methods with ->name(arg types), see https://carc.in/#/r/xix

08:23 <jhass> nwmcsween: don't quite follow what you want on the last one again, a sample would probably help

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15:51 <crystal-gh> [crystal] asterite opened pull request #2518: Compiler: try to infer types from class method bodies (master...feature/more_inference_methods_body) https://git.io/vw2yc

16:05 <crystal-gh> [crystal] asterite pushed 1 new commit to master: https://git.io/vw2HG

16:05 <crystal-gh> crystal/master 5d15a38 Ary Borenszweig: LLVM::Target: some fixes

16:23 <travis-ci> crystal-lang/crystal#5d15a38 (master - LLVM::Target: some fixes): The build passed. https://travis-ci.org/crystal-lang/crystal/builds/125874107

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17:39 <dome22xl> crystal_lib doesn't seem to like it if you have a * before your function name when generating your bindings ?

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17:42 <dome22xl> So how would i convert this function from the .h file mapi_export char *mapi_get_lang(Mapi mid); that has a * before it ?

17:43 <dome22xl> fun *mapi_get_lang breaks the build

17:45 <BlaXpirit> dome22xl, weird

17:45 <BlaXpirit> I think it's more about the mapi_export part

17:46 <BlaXpirit> in any case, it should convert to : LibC::Char* at the end

17:48 <dome22xl> Well its been fine for all the none stared mapi_export functions https://github.com/puppetpies/crystal-monetdb-libmapi/blob/master/src/monetdb/monetdb_libmapi.cr

17:49 <dome22xl> I think i see how to convert them i'll just have to go through manually

17:53 <dome22xl> So something like this fun mapi_get_lang(mid : Mapi) : LibC::Char*

17:55 <dome22xl> i.e the star ends up at the end.

17:58 <BlaXpirit> dome22xl, yes

17:58 <dome22xl> ok should be fun

17:59 <BlaXpirit> dome22xl, use regex...

17:59 <BlaXpirit> and report the bug

17:59 <dome22xl> ok will do.

17:59 <BlaXpirit> if u have any means to apply a regex, i can help you write one

18:00 <dome22xl> I should able to sort that myself but thanks

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18:21 <crystal-gh> [crystal] asterite pushed 1 new commit to master: https://git.io/vwaYD

18:21 <crystal-gh> crystal/master cd8f394 Ary Borenszweig: HTTP: fixed wrong parsing of content-type and charset. Fixes #2520

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18:34 <travis-ci> crystal-lang/crystal#cd8f394 (master - HTTP: fixed wrong parsing of content-type and charset. Fixes #2520): The build passed. https://travis-ci.org/crystal-lang/crystal/builds/125907166

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19:12 <crystal-gh> [crystal] asterite pushed 1 new commit to master: https://git.io/vwaWw

19:12 <crystal-gh> crystal/master 7bdd377 Ary Borenszweig: Compiler: implement tuple covariance. Fixes #357

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19:16 <crystal-gh> [crystal] asterite closed pull request #2508: JSON: preserve raw string. Fixes #2506 (master...feature/json_raw) https://git.io/vw0Hq

19:20 <crystal-gh> [crystal] asterite pushed 1 new commit to master: https://git.io/vwal9

19:20 <crystal-gh> crystal/master 2a7aa1e Ary Borenszweig: File: added `each_line` as iterator. Fixes #2495

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19:25 <travis-ci> crystal-lang/crystal#7bdd377 (master - Compiler: implement tuple covariance. Fixes #357): The build passed. https://travis-ci.org/crystal-lang/crystal/builds/125918906

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19:32 <travis-ci> crystal-lang/crystal#a88b484 (master - JSON: preserve raw string for ints and floats, and expose raw value in pull parser. Fixes #2506 (#2508)): The build passed. https://travis-ci.org/crystal-lang/crystal/builds/125919841

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19:37 <travis-ci> crystal-lang/crystal#2a7aa1e (master - File: added `each_line` as iterator. Fixes #2495): The build passed. https://travis-ci.org/crystal-lang/crystal/builds/125920822

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20:38 <mark_66> Hi guys! Is there a way to list all the methods for an object?

20:39 <mark_66> like in ruby: obj.methods

20:42 <BlaXpirit> mark_66, inside macros http://crystal-lang.org/api/Macros/TypeNode.html#methods%3AArray%28Def%29-instance-method

20:44 <BlaXpirit> mark_66, https://carc.in/#/r/xk8 ...

20:44 <BlaXpirit> but normally you should avoid this

20:46 <mark_66> It's for learning purposes, I want to see to what methods do I have access

20:46 <BlaXpirit> mark_66, documentation is very good for this, otherwise it's tough

20:47 <mark_66> I see

20:47 <mark_66> The syntax is like ruby, so I thought that may be the same methods :)

20:48 <BlaXpirit> mark_66, no, it's dangerous to think about crystal in terms of ruby, because this is a compiled language.

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20:51 <mark_66> I know, but now I try to understand, and learn it

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22:06 <crystal-gh> [crystal] lbguilherme opened pull request #2522: Fix comment about how the initialize method is generated (master...patch-2) https://git.io/vwaFG

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22:18 <BlaXpirit> asterite, https://twitter.com/CrystalLanguage/status/725056911838699524 the link inside leads to slack-files and says not found, maybe you should check it

22:19 <BlaXpirit> probably a permission issue

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22:38 <crystal-gh> [crystal] asterite closed pull request #2522: Fix comment about how the initialize method is generated (master...patch-2) https://git.io/vwaFG

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22:52 <travis-ci> crystal-lang/crystal#d4276cc (master - Fix comment about how the initialize method is generated (#2522)): The build passed. https://travis-ci.org/crystal-lang/crystal/builds/125968336

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23:15 <crystal-gh> [crystal] asterite pushed 2 new commits to master: https://git.io/vwVfz

23:15 <crystal-gh> crystal/master ce891c1 Ary Borenszweig: Tools: doc and hierarchy don't need to do full type inference. Also, improved the hierarchy tool output.

23:15 <crystal-gh> crystal/master a296526 Ary Borenszweig: Compiler: fixed incorrect cover handling for splats. Fixes #2521

23:37 <crime> how long should it take to compile crystal?

23:42 <ldleworker> https://en.wikipedia.org/wiki/Halting_problem

23:46 <crime> I have crystal installed thru .deb, but when I try to run make on the sources from git, it seems like it just sits there and doesnt do anything

23:54 <travis-ci> crystal-lang/crystal#a296526 (master - Compiler: fixed incorrect cover handling for splats. Fixes #2521): The build passed. https://travis-ci.org/crystal-lang/crystal/builds/125974902

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