#ruby-core on 2013-05-03 — irc logs at freenode.irclog.whitequark.org

2013-03-25 00:43 hsbt_away changed the topic of #ruby-core to: check the latest release candidate for 1.9.1 release ftp.ruby-lang.org:/home/yugui/ruby-1.9.1-r26021+1.tar.bz2

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04:22 <znz_jp> biff: [ruby-changes:28513] nobu:r40565 (trunk): win32.c: optimization - http://mla.n-z.jp/?ruby-changes=28513

04:22 <znz_jp> biff: [ruby-changes:28514] nobu:r40566 (trunk): win32.c: fix build error - http://mla.n-z.jp/?ruby-changes=28514

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04:29 <znz_jp> biff: [ruby-changes:28515] nobu:r40567 (trunk): win32.h: INTPTR_MAX, INTPTR_MIN, UINTPTR_MAX - http://mla.n-z.jp/?ruby-changes=28515

04:35 <znz_jp> biff: [ruby-changes:28516] nobu:r40568 (trunk): {getaddrinfo,getnameinfo}.c: fix for old platforms - http://mla.n-z.jp/?ruby-changes=28516

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04:50 <znz_jp> biff: [ruby-changes:28517] nobu:r40569 (trunk): * common.mk (yes-test-all): needs sudo-precheck for dtrace. - http://mla.n-z.jp/?ruby-changes=28517

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05:11 <znz_jp> biff: [ruby-changes:28518] akr:r40570 (trunk): * ext/socket/extconf.rb: Make default_ipv6 true for Cygwin. - http://mla.n-z.jp/?ruby-changes=28518

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11:23 <znz_jp> biff: [ruby-changes:28519] xibbar:r40571 (trunk): * lib/cgi/util.rb: class methods modulize for using like a function. - http://mla.n-z.jp/?ruby-changes=28519

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16:56 <peta_> hello everybody

17:00 <peta_> I have a question about Ruby internals: when I include a module into my current scope, then (beside others) the instance methods of this module are "imported" into my current scope. Are these imported methods copies of the original ones, or are they internally the same/identical ones?

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17:05 <peta_> When I include a module into my current scope (say inside another module or in the root namespace), the methods contained by this module will be somehow "imported" into my current scope. How exactly is this done? Are the methods copied/duplicated or does Ruby just create a local identifier that "references" the original method? (so regardless of how many times a given module is included, there will only be a single copy/instance of th

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17:08 <zzak> peta_: try looking for rb_module_include() and rb_mod_include()

17:09 <zzak> ie Module#include

17:14 <peta_> zzak: okay, thx for the hint

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17:25 <peta_> zzak: okay, I tracked down things to rb_include_class_new (https://github.com/ruby/ruby/blob/trunk/class.c#L661)

17:26 <peta_> but there I give up.

17:26 <peta_> would you mind telling me the answer to my question? :) will the methods in the included class be duplicated or just linked through kind of local identifier?

17:34 <zzak> peta_: i honestly dont know

17:35 <peta_> zzak: okay, thx anyway. but say, is this the channel for ruby interpreter developers?

17:36 <zzak> yes, but its fairly quiet usually

17:44 <tmahoney> peta_: You're right, that method is a little weird looking.

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17:46 <peta_> tmahoney: at least for a novice ruby end user like me that has no clue about the ruby interpreter internals

17:49 <tmahoney> peta_: It looks like the methods aren't copied, but are referenced instead.

17:49 <tmahoney> I'm not all that familiar with how things work in there, but I think so.

17:50 <tmahoney> rb_include_class_new seems to create a new class klass

17:50 <tmahoney> Then set the method table of that class to be that of the module you're including.

17:51 <tmahoney> It sets the instance variable and constant tables of the new class to that module as well.

17:51 <tmahoney> Then it sets the super class of the newly created class to the class you're including the module in.

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17:52 <tmahoney> But, I'm not sure how that makes anything work at all haha.

17:52 <peta_> tmahoney: thanks a lot for this clarification. this already helped me a lot

17:54 <drbrain> peta_: they're the same methods

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17:54 <drbrain> peta_: there's a T_ICLASS that is created (I think it stands for "included class") and is stuck in the ancestors list

17:55 <tmahoney> Ah, included class makes sense.

17:56 <peta_> okay, so put simple, eveyrtime i include a module (and thus the methods it contains) anywhere, just links/aliases/callitwhatever are created that in the end point to the same function object

17:57 <peta_> because i had a discussion with a (more experienced end user) guy in #ruby that tried to tell me that methods are copied/duplicated each time I include the containing module anywhere

17:57 <peta_> and that sounded weird to me. so I wanted to clarify this

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18:06 <drbrain> module M; def a() end end; class C; include M; end; C.instance_methods - Object.methods; module M; def b() end end; C.instance_methods - Object.methods

18:07 <drbrain> when M#b is added it appears in C, so I don't think the method table is copied

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21:04 <znz_jp> biff: [ruby-changes:28520] kosaki:r40572 (trunk): * include/ruby/defines.h (RUBY_ATTR_ALLOC_SIZE): New for - http://mla.n-z.jp/?ruby-changes=28520

21:04 <znz_jp> biff: [ruby-changes:28521] svn:r40573 (trunk): * 2013-05-04 - http://mla.n-z.jp/?ruby-changes=28521

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21:21 <travis-ci> [travis-ci] The build has errored. by @svn: See http://travis-ci.org/ruby/ruby/builds/6866125

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22:28 <zzak> drbrain: i wonder if anyone wants to translate the guides to ja, and if ri would be ok with that

22:29 <zzak> like doc/security.ja.rdoc would probably be ok

22:29 <drbrain> zzak: I would ask the rurema folks

22:29 <zzak> hsbt is in rurema right?

22:31 <drbrain> there's a couple people

22:33 <zzak> do you know if sho hashimoto is on twitter?

22:33 <zzak> they seem to be very active rurema contributor

22:34 <drbrain> I don't

22:34 <zzak> have sentquite a few patches for trunk too

22:34 <drbrain> zzak: I use this in vim:

22:34 <drbrain> let date = system("TZ=Japan date +'%a %b %e %T %Y'")

22:34 <drbrain> return substitute(date, "\\\n", "", "")

22:34 <drbrain> since the TZ offsets don't change on the same day, it seems to be the only safe way

22:36 <zzak> return not in function?

22:36 <drbrain> it's in a function

22:37 <drbrain> hold on...

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22:38 <travis-ci> [travis-ci] The build passed. by @zzak: See http://travis-ci.org/ruby/ruby/builds/6868203

22:38 <drbrain> https://gist.github.com/drbrain/5514816

22:41 <drbrain> I don't think I've modified changelog.vim, but I can't remember

22:41 <drbrain> the goal of ↑ is to override just the changelog_dateformat_func to do what I want for the ruby repository

22:41 <drbrain> … anything with a ruby.c and README.EXT

22:47 <zzak> hm

22:47 <zzak> my viml sucks

22:48 <zzak> i just have a function Jstdate()

22:48 <zzak> and want to simply bind it to an imap key

22:48 <zzak> imap <C-J> <C-R>:call Jstdate()<CR>

22:48 <zzak> doesnt really work

22:51 <drbrain> with changelog.vim you can be anywhere and type <leader>o to create a new ChangeLog entry

22:54 <zzak> got it!

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22:55 <zzak> https://gist.github.com/zzak/5514903

22:55 <zzak> now i can ctrl+j in insert mode

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