jhass changed the topic of #crystal-lang to: The Crystal programming language | http://crystal-lang.org | Crystal 0.7.5 | Fund Crystals development: http://to.ly/TtGw | Paste > 3 lines of text to https://gist.github.com | GH: https://github.com/manastech/crystal - Docs: http://crystal-lang.org/docs/ | API: http://crystal-lang.org/api/ | Logs: http://irclog.whitequark.org/crystal-lang
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<asterite> ozra: I changed it and there was no change :(
<ozra> asterite: Aha, too bad, I had hopes for that one. It did get used in practise (stupid question)?
<asterite> Now the difference between rust and cyrstal is the GC, and how rust allocates memory. I think they were using jemalloc, maybe it's better than boehm.
<strcmp1> there's not manual memory management in rust?
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<asterite> In any case, this program isn't very typical, it keeps allocating memory for ever, creating an array of 91_964_701 positions... I don't think many programs out there need to do that
<asterite> strcmp1: rust memory management is kind of manual
<asterite> well, you don't need to worry about it, rust takes care about that, but you have to deal with lifetimes, ownership and the borrow checker
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<jamie_ca> strcmp1: biggest choice I'm aware of in rust is that you can force allocations to be heap/stack, which might save a few copies depending on who grabs ownership of the data
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<ozra> No, ofc it's atypical, but it's at least indicative of number crunching allocation heavy sw. I'm frankly surprised it didn't speed up. But silly me didn't check bench source and made assumptions. Will have a peek.
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<dbackeus> what difference is there to build in "release" mode vs non release mode?
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<BlaXpirit> dbackeus, release has optimizations
<BlaXpirit> in some languages debug mode prevents some crashes and gives more info about them, more runtime checks, while release sacrifices safety for performance
<BlaXpirit> dbackeus, i dont know details about release mode in crystal, but the gist is it's supposed to be faster, but you're not supposed to use it during development
<dbackeus> right
<dbackeus> guess I'll have to try using it and see if the benchmarks show any difference
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<blassin> hey!
<blassin> is there any code coverage tool for Crystal?
<blassin> the only mention I see in the code is in the .gitignore :D
<BlaXpirit> hm i dont thnk so
<blassin> ok, thanks!
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<dbackeus> is there anything similar to .freeze in Crystal to make objects immutable?
<BlaXpirit> dbackeus, what is immutable?
<BlaXpirit> u can always just not define setters
<dbackeus> say you have an array and you want to make sure it doesn't get it's contents changed
<dbackeus> in ruby you would freeze it
<BlaXpirit> never heard of this
<BlaXpirit> u can make a wrapper that only defines []
<BlaXpirit> probably best make it a struct, not a class
<dbackeus> yeah that probably makes sense
<dbackeus> mama mia, I almost just ate a wasp sitting inside my can of Fanta
<dbackeus> luckily he appeared more dazed than pissed off after I spat him out ;)
<BlaXpirit> D:
<crystal-gh> [crystal] asterite closed pull request #927: Implement Enumerable#sort (master...feature/enumerable_sort) http://git.io/vqtMF
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<crystal-gh> [crystal] asterite closed pull request #1074: Adds a working version of the format (%) method on strings (master...string_format) http://git.io/vO3Dp
<travis-ci> manastech/crystal#7dc3f62 (master - Merge pull request #1074 from zamith/string_format): The build passed. https://travis-ci.org/manastech/crystal/builds/74571130
<travis-ci> manastech/crystal#898e84c (master - Some fixes to String#% with hash arguments. Related to #1074): The build passed. https://travis-ci.org/manastech/crystal/builds/74571899
<crystal-gh> [crystal] waj pushed 1 new commit to master: http://git.io/vOAob
<crystal-gh> crystal/master 74b031b Juan Wajnerman: Signal numbers are different in Darwin and Linux (fixes #1114)
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<travis-ci> manastech/crystal#74b031b (master - Signal numbers are different in Darwin and Linux (fixes #1114)): The build passed. https://travis-ci.org/manastech/crystal/builds/74576316
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<crystal-gh> [crystal] asterite pushed 2 new commits to master: http://git.io/vOxee
<crystal-gh> crystal/master ec34ac6 Ary Borenszweig: Fixed #1121: dont't skip assignment when used in combination with `is_a?`
<crystal-gh> crystal/master 7b0db03 Ary Borenszweig: Added `%<...>` to String#%, which allows to specify formatting options
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<crystal-gh> [crystal] asterite pushed 3 new commits to master: http://git.io/vOpCe
<crystal-gh> crystal/master 8ef990a Ary Borenszweig: Improved error message of `expect_raises`
<crystal-gh> crystal/master 8da376b Ary Borenszweig: Fixed #1120: check that Proc and Tuple arguments are types, give error when not
<crystal-gh> crystal/master 6e4b673 Ary Borenszweig: Added `Int#unsafe_shl` and `Int#unsafe_shr` so we can implement safe versions of `<<` and `>>` on top. Related to #305
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<travis-ci> manastech/crystal#6e4b673 (master - Added `Int#unsafe_shl` and `Int#unsafe_shr` so we can implement safe versions of `<<` and `>>` on top. Related to #305): The build was broken. https://travis-ci.org/manastech/crystal/builds/74611039
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<crystal-gh> [crystal] asterite pushed 1 new commit to master: http://git.io/vOplV
<crystal-gh> crystal/master 30e2748 Ary Borenszweig: Missing commented code from the previous commit
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<just_this_guy> hi, is there a Crystal equivalent to RUBY_PLATFORM?
<jhass> no
<jhass> though you can do something like
<just_this_guy> or a list of all predefined CONSTANTS in Crystal?
<jhass> >> `uname -m`
<DeBot> jhass: # => "i686\n" - http://carc.in/#/r/aeh
<jhass> mmh, not that I'm aware of
<just_this_guy> ok, thanks!
<jhass> >> {{`uname -m`}}
<DeBot> jhass: Error in macro 'macro_181094512' eval:4, line 1: undefined local variable or method 'i686' - http://carc.in/#/r/aei
<jhass> >> {{`uname -m`.stringify}}
<DeBot> jhass: # => "i686\n" - http://carc.in/#/r/aej
<jhass> to get it at compile time
<BlaXpirit> hmm if i were trying this, it would definitely not occur to me to use .stringify
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<BlaXpirit> why not .to_s
<BlaXpirit> this leads me to a question
<BlaXpirit> how to list methods of an object?
<jhass> >> class Object; macro def methods : Array(String) {{@type.methods.map &.name.stringify}} of String; end; end; "".methods
<DeBot> jhass: Syntax error in expanded macro: macro_194140576:1: expecting token 'EOF', not '}' - http://carc.in/#/r/aem
<jhass> mmh
<jhass> >> class Object; macro def methods : Array(String); {{@type.methods.map &.name.stringify}} of String; end; end; "".methods
<DeBot> jhass: # => ["bytesize", "to_i", "to_i", "to_i?", "to_i8", "to_i8", "to_i8?", "to_u8", "to_u8", "to_u8?", "to_i16", "to_i16", "to_i16?", "to_u16", "to_u16", "to_u16?", "to_i32", "to_i32", "to_i32?", "to_u32", "to_u32", "to_u32?", "to_i64", "to_i64", "to_i64?", "to_u64", "to_u64", "to_u64?", "to_u64_info", "to_f", "to_f32", "to_f64", "[]", "[]", "[]", "[]" ... - http://carc.in/#/r/aen
<BlaXpirit> jhass, thanks, that makes sense, but shouldn't it be in standard library?
<jhass> I think ary doesn't want people to try to do runtime metaprogramming with it or somesuch
<jhass> and I mean we just should integrate crystal doc with what crystal deps will become and have a local doc browser for all your project
<BlaXpirit> jhass, there is also this thing, in macros i was getting some weird node type that isn't in the docs
<BlaXpirit> and i had no idea what to do with it
<BlaXpirit> so how to list all methods of a node in macros?
<jhass> I don't think there's a way to list macro methods
<BlaXpirit> peculiar code
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<jwaldrip> is there documentation on the Porjectfile?
<jwaldrip> Projectfile...
<jhass> it's going to be replaced, so no
<jhass> but it's just deps do github "foo/bar" end
<jhass> and then run crystal deps
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<jwaldrip> when is the replacement coming. What is the spec for it?
<crystal-gh> [crystal] technorama opened pull request #1123: Move LibC::TimeSpec and LibC::TimeVal to libc.cr. (master...f/libc) http://git.io/vOpAM
<nopc0de> Why does the HTTP server example in /docs/ crash when querying with curl?
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<jhass> it does?
<jhass> seems to work here
<dzv> is there a way to throw a fatal exception that is not normally caught by rescue?
<jhass> just exit?
<jhass> >> STDERR.puts "fatal!"; exit(1)
<DeBot> jhass: fatal! - http://carc.in/#/r/aeq
<jhass> could be nice to add Ruby's Kernel#abort
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<asterite> >> abort "oh no!"
<DeBot> asterite: Failed to run your code, sorry! - http://carc.in/#/r/aet
<asterite> http://crystal-lang.org/api/index.html#http%3A//crystal-lang.org/api/toplevel.html%23abort%2528message%252C%2520status%2520%253D%25201%2529-class-method
<jhass> mmh
<jhass> didn't see warn so I didn't think :D
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<asterite> Oh, I didn't know about warn
<jhass> also abort should print to stderr
<crystal-gh> [crystal] asterite pushed 2 new commits to master: http://git.io/vOhJg
<crystal-gh> crystal/master bb3ad68 Technorama Ltd: Move LibC::TimeSpec and LibC::TimeVal to libc.cr.
<crystal-gh> crystal/master d0ea348 Ary Borenszweig: Merge pull request #1123 from technorama/f/libc...
<asterite> Didn't know that either
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<crystal-gh> [crystal] will opened pull request #1125: print abort message to stderr (master...stderrabort) http://git.io/vOhLd
<jhass> willl: ty :D
<travis-ci> manastech/crystal#d0ea348 (master - Merge pull request #1123 from technorama/f/libc): The build passed. https://travis-ci.org/manastech/crystal/builds/74625692
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<nopc0de> It's probably my own stupidity
<jhass> you're on crystal 0.7.5?
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<just_this_guy> @nopc0de it worked for me
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<just_this_guy> I posted curl’s response on your gist
<nopc0de> Yes
<jhass> yeah, try HEAD
<jhass> though I'm curios, what curl version?
<jhass> since it does seem to work for some
<just_this_guy> asterite: is there a way to get the PID of the current Crystal process? Or the parent PID? Or both?
<nopc0de> curl 7.37.1
<jhass> >> Process.pid
<DeBot> jhass: # => 71 - http://carc.in/#/r/af2
<jhass> >> Process.ppid
<DeBot> jhass: # => 1 - http://carc.in/#/r/af3
<BlaXpirit> :o
<just_this_guy> jhass: thanks!
<nopc0de> Should I use/build crystal from master branch on github?
<just_this_guy> asterite: thanks!
<jhass> nopc0de: yeah
<crystal-gh> [crystal] asterite pushed 2 new commits to master: http://git.io/vOh3x
<crystal-gh> crystal/master cafe10f Will Leinweber: print abort message to stderr
<crystal-gh> crystal/master a919228 Ary Borenszweig: Merge pull request #1125 from will/stderrabort...
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<just_this_guy> re: curl, I’m on a lower version than nopc0de, with no problem (7.30.0)
<jhass> I'm on 7.43 with no problem
<just_this_guy> maybe it’s not just the curl version, but features or protocols
<nopc0de> Okai trying that now
<nopc0de> i think im using osx default
<just_this_guy> nopc0de: /usr/bin/curl?
<just_this_guy> nopc0de: I listed my `curl —version` with protocols and features on your gist
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<travis-ci> manastech/crystal#a919228 (master - Merge pull request #1125 from will/stderrabort): The build passed. https://travis-ci.org/manastech/crystal/builds/74629582
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<nopc0de> Does anyone have instructions to get crystal head on osx?
<nopc0de> It's probably the llvm then
<nopc0de> I didn't do it because of the "all kinds of problems" in brew
<crystal-gh> [crystal] asterite pushed 1 new commit to master: http://git.io/vOhDD
<crystal-gh> crystal/master 4288b21 Ary Borenszweig: Removed support for trailing `while`/`until`. Use `loop { ... break if <cond> }` instead. Fixes #549. Fixes #1118.
<BlaXpirit> woo
<jhass> :/
<BlaXpirit> what, jhass
<BlaXpirit> dont like removing expr while expr ?
<jhass> yeah
<BlaXpirit> well, the points against removing it were also expressed
<jhass> happy that ... end while ... is gone but I like ... while ...
<BlaXpirit> i remember one, anyway
<BlaXpirit> i mean, loop is too big of a control flow change to express it in one line
<BlaXpirit> i would never use expr while expr
<travis-ci> manastech/crystal#4288b21 (master - Removed support for trailing `while`/`until`. Use `loop { ... break if <cond> }` instead. Fixes #549. Fixes #1118.): The build passed. https://travis-ci.org/manastech/crystal/builds/74638389
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