#crystal-lang on 2016-04-28 — 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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07:50 <BlaXpirit> yeah, in -2 years

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14:22 <crystal-gh> [crystal] asterite pushed 1 new commit to master: https://git.io/vwKKr

14:22 <crystal-gh> crystal/master 2a7af26 Ary Borenszweig: Allow type annotation + initialization `@var : Type = value`. Fixes #2491

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14:35 <travis-ci> crystal-lang/crystal#2a7af26 (master - Allow type annotation + initialization `@var : Type = value`. Fixes #2491): The build passed. https://travis-ci.org/crystal-lang/crystal/builds/126394381

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17:28 <sp4rrow> I am just getting back to crystal

17:28 <sp4rrow> I was curious I was building a game ai

17:28 <sp4rrow> is there any concurrency support in crystal now?

17:29 <RX14> yes

17:29 <RX14> we have fibers

17:29 <RX14> and fork() is still the story for parallelism

17:30 <RX14> OS threads exist, but doing IO in them crashes the program

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18:16 <sp4rrow> thanks RX14 I will have to check out fork

18:16 <sp4rrow> does copy on write work?

18:16 <RX14> it's literally just fork()

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18:16 <RX14> if the OS supports it, COW works

18:17 <sp4rrow> sweet that sounds awesome

18:17 <RX14> but of course you don't share memory

18:17 <RX14> so form isn't that useful

18:17 <RX14> fork*

18:17 <sp4rrow> I would never dream of it

18:17 <RX14> it's basically useful just for binding a socket then forking workers

18:17 <RX14> i think that works

18:18 <RX14> you'll have to test it

18:18 <RX14> but it should

18:18 <sp4rrow> I was trying to use some OSX profiling tools earlier

18:18 <sp4rrow> and I could not get them to work

18:18 <sp4rrow> do you know how to get a profiler to work with crystal

18:19 <RX14> profiling tools *kinda* work

18:19 <RX14> if they work on any old executable, they will work on crystal

18:19 <RX14> the ones which require compiler integration don't

18:20 <sp4rrow> ok

18:20 <sp4rrow> which ones work for you?

18:20 <RX14> can't remember

18:21 <sp4rrow> ok I am googling around

18:22 <sp4rrow> thanks man

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19:15 <sp4rrow> just curious but what is crystals story on windows machines?

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19:24 <jokke> hey

19:24 <jokke> !logs

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19:24 <jokke> hm

19:34 <asterite> sp4rrow: Instruments on macosx works pretty well

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20:01 <crystal-gh> [crystal] gerrywastaken opened pull request #2530: Add missing `nil`s to documentation (master...fix-missing-nils-in-array-docs) https://git.io/vw6yd

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20:25 <sp4rrow> I am looking through the parser and I am curious why crystal did not use one off the shelf?

20:25 <sp4rrow> I am sure there are many valid reasons

20:25 <sp4rrow> include lang like ruby end up heavily modding the parser in the end

20:26 <sp4rrow> just seems like it would be easier for some of the issues I was reading to implement new syntax feature

20:26 <sp4rrow> also I could be very wrong

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20:47 <BlaXpirit> sp4rrow, well you probably are wrong. not a single popular programming language uses "one off the shelf"

20:47 <sp4rrow> cool good to know

20:48 <BlaXpirit> it's such a tiny help but the downsides are countless

20:48 <sp4rrow> I thought yacc was common that was the one I was thinking of

20:48 <BlaXpirit> those parsers are made for generic things like, you know, space-separated words and simple quoting but none of it will be useful

20:49 <sp4rrow> that is excellent to know

20:49 <BlaXpirit> of course i may be wrong because i know little about this

20:49 <sp4rrow> well it sounds like you know more then me

20:49 <sp4rrow> also up side i can read this parser and understand the logic that I am reading

20:50 <sp4rrow> I dont understand ruby's parser

20:50 <sp4rrow> just curious

20:50 <sp4rrow> and not trying to put down anyones decision

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21:09 <RX14> it's a pretty traditional parsing architecture

21:09 <RX14> tokenise the source, then recursive descent I think

21:09 <RX14> such parsers are easy to write, easy to understand and powerful

21:10 <RX14> from my limited experience with them

21:11 <crystal-gh> [crystal] asterite pushed 1 new commit to master: https://git.io/vw6hZ

21:11 <crystal-gh> crystal/master 29a3e3a Ary Borenszweig: Compiler: fixed small codegen issue with class vars initializers

21:13 <crystal-gh> [crystal] asterite pushed 1 new commit to master: https://git.io/vw6ho

21:13 <crystal-gh> crystal/master dee459d Gerry: Add missing `nil`s to documentation (#2530)...

21:21 <travis-ci> crystal-lang/crystal#29a3e3a (master - Compiler: fixed small codegen issue with class vars initializers): The build passed. https://travis-ci.org/crystal-lang/crystal/builds/126498888

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21:29 <travis-ci> crystal-lang/crystal#dee459d (master - Add missing `nil`s to documentation (#2530)): The build passed. https://travis-ci.org/crystal-lang/crystal/builds/126499258

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