#crystal-lang on 2016-07-02 — irc logs at freenode.irclog.whitequark.org

2016-06-28 17:08 jhass changed the topic of #crystal-lang to: The Crystal programming language | http://crystal-lang.org | Crystal 0.18.6 | 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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00:32 <crystal-gh> [crystal] asterite pushed 1 new commit to master: https://git.io/vKvmX

00:32 <crystal-gh> crystal/master 8a10530 Ary Borenszweig: Merge branch 'release/0.18'

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00:53 <travis-ci> crystal-lang/crystal#8a10530 (master - Merge branch 'release/0.18'): The build passed. https://travis-ci.org/crystal-lang/crystal/builds/141773773

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01:07 <travis-ci> crystal-lang/crystal#752bb8d (release/0.18 - Codege: use `null` instead of `undef` as initial value of class vars and constants): The build passed. https://travis-ci.org/crystal-lang/crystal/builds/141773784

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11:06 <FromGitter> <jmoriau> Hi can anyone explain to me what this error means and why ? https://play.crystal-lang.org/#/r/12yz

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11:18 <BlaXpirit> jmoriau, https://crystal-lang.org/api/0.18.6/toplevel.html#raise%28ex%3AException%29%3ANoReturn-class-method

11:19 <BlaXpirit> jmoriau, https://play.crystal-lang.org/#/r/12z5

11:19 <FromGitter> <jmoriau> aaaahhhh

11:19 <FromGitter> <jmoriau> Makes sense tnaks

11:20 <FromGitter> <jmoriau> thanks

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14:51 <FromGitter> <sdogruyol> isn't it better to have HTTP::Headers use a NamedTuple instead of a Hash?

14:52 <FromGitter> <sdogruyol> https://github.com/crystal-lang/crystal/blob/master/src/http/headers.cr#L52

14:53 <jhass> it's not possible

14:53 <jhass> the set of valid HTTP headers is indefinite

14:53 <FromGitter> <sdogruyol> hmm

14:54 <FromGitter> <sdogruyol> can you give me an explicit example where NamedTuple is insufficient with that

14:55 <jhass> X-Foo-Bar-Yolo is a valid header

14:56 <FromGitter> <sdogruyol> {"X-Foo-Bar-Yolo": "Something"} isn't this is a valid NamedTuple

14:56 <jhass> it is

14:57 <jhass> but how do you construct it from a HTTP response?

14:58 <jhass> https://github.com/crystal-lang/crystal/blob/master/src/http/common.cr#L55-L56

14:59 <FromGitter> <sdogruyol> i'm sorry if i am missing something but isn't it the same as Hash?

15:00 <jhass> >> nt = {foo: "bar"}; nt[:bar] = "baz"

15:00 <DeBot> jhass: undefined method '[]=' for NamedTuple(foo: String) - https://carc.in/#/r/12zb

15:00 <jhass> >> x = "foo"; {x => 1}

15:00 <DeBot> jhass: # => {"foo" => 1} - https://carc.in/#/r/12zc

15:00 <jhass> >> x = "foo"; {x: 1}

15:00 <DeBot> jhass: # => {x: 1} - https://carc.in/#/r/12zd

15:00 <FromGitter> <sdogruyol> ahh

15:01 <jhass> it's a tuple

15:01 <jhass> the indicies just have names

15:01 <FromGitter> <sdogruyol> but you cant access it

15:01 <jhass> sure you can

15:01 <FromGitter> <sdogruyol> like you'd in a Hash

15:01 <FromGitter> <sdogruyol> *

15:01 <jhass> you can't modify it

15:01 <jhass> or construct key names unknown at compile time

15:02 <FromGitter> <sdogruyol> okay, now i get it that why can't we do that :)

15:02 <FromGitter> <sdogruyol> thank you

15:02 <jhass> yw

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22:01 <crystal-gh> [crystal] Nephos opened pull request #2946: WIP: Add new HTTP::Headers constructors (master...http-headers-new-with-params) https://git.io/vKvhU

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