»ö« Welcome to Perl 6! | perl6.org/ | evalbot usage: 'p6: say 3;' or rakudo:, or /msg camelia p6: ... | irclog: irc.perl6.org or colabti.org/irclogger/irclogger_logs/perl6 | UTF-8 is our friend!
Set by moritz on 22 December 2015.
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MasterDuke Zoffix: reading your post now, liking so far. however, i think there might be a typo in the filters example 00:53
the last line of output you have as '<MahBot> Zoffix, <intuit> fpaste.scsys.co.uk/528741'
should it be 'the last line of output you have as '<MahBot> Zoffix, fpaste.scsys.co.uk/528741'?
minus the '<intuit>' 00:54
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Zoffix Thanks. Fixed. 01:23
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TEttinger challenge! can #perl6 write code that will let camelia evaluate this as code, ¯\_(ツ)_/¯ , and get back some suitable response? 02:17
you have amazing grammar capabilities, can they shrug this one out? 02:18
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timotimo um, yeah? duh. 02:21
m: sub term:<¯\_(ツ)_/¯> { say "hah" }; ¯\_(ツ)_/¯
camelia rakudo-moar 22949d: OUTPUT«hah␤»
timotimo :)
geekosaur was going to paste zoffix's from some months back :)
timotimo yeah, zoffix has been doing that kind of thing for a long time 02:22
TEttinger very good
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timotimo "very good"? you've obviously seen nothing yet ;) 02:25
sammers ola 02:28
Zoffix That's my patented Shrug Operator 02:30
Oh, wait never mind. It's ¯\(°_o)/¯ tpm2016.zoffix.com/#/14 02:31
I was about to sue.
geekosaur 2016 May 05 00:37:02 <ZoffixWin>m: sub term:<¯\_(ツ)_/¯> { say 'hotel shrugs' }; ¯\_(ツ)_/¯ 02:32
:p
Zoffix heh 02:33
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Zoffix m: sub infix:<⁣> { $^a + $^b }; say 2⁣2 02:36
camelia rakudo-moar 22949d: OUTPUT«4␤»
Zoffix TEttinger, ^ try to figure that one out :P 02:37
TEttinger is that supposed to be an invisible charactr? it renders visibly in unifont 02:38
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TEttinger ah, 2063 invisible separator 02:38
I had to try to figure out what there was to figure out 02:39
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Zoffix :( 02:39
timotimo gnite!
TEttinger sub infix:<> { $^a + $^b }; say 22
Zoffix Yeah, it was supposed to be invisible: perl6.party/post/Anguish--Invisible...Data-Theft
TEttinger m: sub infix:<> { $^a + $^b }; say 22
camelia rakudo-moar 22949d: OUTPUT«4␤»
Zoffix night, timo
TEttinger that is invisible for me 02:40
\ufeff, the BOM
interesting, all of your 0-width chars render as red circles for me, was that intentional, Zoffix? 02:41
geekosaur that sounds like your client (or terminal) using a substitution char
Zoffix no it's not intentional 02:42
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TEttinger browser 02:42
geekosaur odd. still sounds like a substitution char
TEttinger i.imgur.com/Dbpqebc.png 02:43
invisible to the human eye eh?
invisible to a jellyfish eye, yes 02:44
they have very nice lenses
Zoffix Yeah, I see the same thing on my windows box 02:47
They were all invisible on the box where I actually wrote that article on :) (Ancient Ubuntu with sauce-built Englightenment desktop) 02:48
BenGoldberg Maybe a mantis shrimp could see the invisible character? They've got the most interesting eyes of any animal discovered, iirc.
TEttinger BenGoldberg: tis true! but the reason is surprising 02:50
they have amazing eyes, able to distinguish something like 12 individual components of a color (not sure the exact term, for humans it's 3, red green blue), but show them a green crab that's good for food and a greenish-yellow crab that's completely poisonous, makes them puke hard, and they will eat the poisonous one half the time, never "learning" 02:51
really they learned it!
but they can't distinguish nearby colors 02:52
they have amazing eyes because their brains can't process more than "more green than yellow"
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TEttinger there's the other weird feature that they only have that supervision in a single band of their compound eye, the rest sees black and white with low detail 02:55
(they can move the band in all directions, even rotating it, INSIDE THEIR EYE, which is freaky to look at)
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BenGoldberg Don't forget polarization :) 02:56
TEttinger it's a common feature in crustaceans though. lobsters have a similar thing, where the mechanics of the eye are extremely elegant and sophisticated to offload complexity from their miniscule brains
(human eyes receive a vertically inverted image, the brain needs to flip it. lobsters have a mirror in the rods and cones of their eyes) 02:57
it's absolutely amazing and it makes you think, "haha we vertebrates went the right way with big ol' brains! I'm gonna eat at red lobster tonight." then you look at octopus, squid, and cuttlefish, particularly the last ones, and they have no backbone but can still actually communicate really involved messages by changing color/patterning of thousands of individual blobs in their skin 02:59
mimic octopus can figure out that a particular predator won't go after a starfish, so it squishes some of its arms to mimic the shape of a starfish, and moves its skin to imitate its texture 03:00
it imitates the sillhouette of a big fish to scare away small fish when it's floating high in the water 03:01
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BenGoldberg One day in the distant future, scientists will create electronic tattoos based on cuttlefish skin, so you can have a biological computer screen on your wrist. 03:02
And we'll use perl6 to program it! :)
geekosaur nearer than you think, although they may not be basing it on cuttlefish skin 03:03
kurahaupo xkcd.com/928/
geekosaur they already have lab prototypes
BenGoldberg imagines a cross between a lyrebird and a mimic octopus. 03:08
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TEttinger woah haha 03:08
kurahaupo BenGoldberg: a flying octopus? 03:10
BenGoldberg A lyrebird can mimic just about any sound it hears. 03:11
TEttinger a mimic mimic 03:12
chainsaws even
now imagine it imitating the sound AND APPEARANCE of a chainsaw murderer 03:13
skids
.oO(what, no olfactory mimic?)
BenGoldberg A mimic octopus can change it's skin coloring and texture, and can contort itself in a variety of ways to scare off predators; it makes itself look like something poisonous when threatened. 03:14
Except "something poisonous" can be any of over a dozen different animals. 03:15
TEttinger it must be possible, but because olfaction is the detection of specific compounds (like vanillin smells like vanilla, and comes from the vanilla plant, but can also be extracted from beaver musk) and approximate "silhouettes" wouldn't trigger a match, it would need a lot more detail or a lot less acute of a sensor to fool
geekosaur there are olfactory mimics in nature, but yes, they rely on the thing they're trying to confuse not being too precise 03:17
kurahaupo several bird species are excellent auditory mimics
geekosaur luckily for them there's lots of things that key off a single specific scent
kurahaupo BenGoldberg: of course to be completely convincing they would have to mimic flavour too, so that they taste exactly like something else ... oh, wait ... 03:20
TEttinger if vision could be compared to an extremely poor hashing function (optical illusions are a great example of causing a "hash collision", the McCollough effect means it's like a hashing function with limited access to RAM that isn't its own), smell is like a lookup from an exact bit pattern to an exact smell, but the bit patterns are hard-coded at compile time
skids Nothing surprises me anymore since hearing about en.wikipedia.org/wiki/Greater_hone..._of_humans 03:22
TEttinger holy crap, skids, and the last thing too. they do the same thing cuckoos do. 03:25
The chick has a membranous hook on the bill that it uses, while still blind and featherless, to kill the host's young outright or by repeated wounds.
killer babies
skids I bet they learned it from watching us. 03:26
TEttinger heh
geekosaur cuckoos are badass. they have "mafia"s too: birds which get too adept at kicking cuckoo eggs out of their nest get mobbed
TEttinger brood parasitism I would not be surprised if dinosaurs did it 03:27
(non-avian dinosaurs)
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dalek sectbot: 83b6e73 | (Daniel Green)++ | bisectable.pl:
Add the good and bad commits used to the output
 03:40
sectbot: 4a6357a | (Daniel Green)++ | Perl6IRCBotable.pm:
Only respond if there's a ':' or ',' immediately after the bot name
 03:47
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Woodi heavy morning #perl6 :) 04:34
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Xliff Does anyone know what would happen if you try and use nqp::decont() on a type object? 05:37
moritz Xliff: iirc a decont on a non-container simply returns the non-container object 05:38
yoleaux 29 Jul 2016 23:24Z <Zoffix> moritz: I recall you being interested in a P6 IRC Client. IRC::Client should do the trick. It's poorly tested yet, but the API has been finalized: github.com/zoffixznet/perl6-IRC-Client#synopsis
Xliff moritz: Hmmm... OK.
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Xliff I'm trying to use nqp::bindattr to NULL out a repr('CPointer') value in a repr('CStruct'). 05:39
It doesn't seem to be working.
If I don't use nqp::decont() when setting to a type object I get "Can only store CPointer attribute in CPointer slot in CStruct" ... which I kinda expected. 05:41
But if I do, it looks like the nqp::bindattr turns into a no-op. The attribute value doesn't change. 05:42
dalek sectbot: b19c8e2 | (Daniel Green)++ | / (2 files):
Add a total run time limit in addition to the time limit for running each individual commit
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Xliff Eh. Time for bed. I will try and come up with a golf for this, tomorrow. 05:45
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AlexDaniel bisectable++ 06:05
yoleaux 29 Jul 2016 23:24Z <Zoffix> AlexDaniel: IRC::Client's rewrite is done. perl6.party/post/IRC-Client-Perl-6-...IRC-Module
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AlexDaniel ===SORRY!=== Missing serialize REPR function for REPR VMException 07:17
/o\
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AlexDaniel gist.github.com/AlexDaniel/6933fc3...819f0a4f85 – what am I doing wrong? 07:42
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FROGGS_ maybe the smartquotes in "use lib"? 08:00
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TEttinger smort quates 08:49
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moritz oh hai 08:56
unmatched}++
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konobi what does bindpos do? 08:56
moritz in perl6.party/post/IRC-Client-Perl-6-...IRC-Module the line start $cache.poll or do { self!fetch-quotes; $cache.poll }; trips me up 08:57
what's the relative precedence of prefix:<start> and infix:<or>?
konobi: @a[0] := $x
AlexDaniel FROGGS_: no 08:59
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AlexDaniel What can I try? 09:06
konobi moritz: i mean underneath... looking at a vm implementation detail 09:08
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smls m: say {a=>3, b=>2, c=>1}.max(*.value) 09:21
camelia rakudo-moar 32f341: OUTPUT«Index out of range. Is: 1, should be in 0..0␤ in block <unit> at <tmp> line 1␤␤Actually thrown at:␤ in any at gen/moar/m-Metamodel.nqp line 3055␤ in block <unit> at <tmp> line 1␤␤»
smls ^^ Why does .max on a Hash throw 'Index out of range'?
Shouldn't it work like .list.max ?
After all, .grep on a Hash works like .list.grep (and same with .map etc.) 09:23
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konobi .tell pmurias are all the functions/methods with '$$' internal to the js nqp-runtime? 09:32
yoleaux konobi: I'll pass your message to pmurias.
nine konobi: well, bindpos really is just a (pointer) assignment with a couple of checks added 09:37
konobi hhhmmm... 09:38
nine Oh, and of course it may have to resize the array 09:41
moritz konobi: github.com/MoarVM/MoarVM/blob/mast...#L343-L421 this is what happens, in case of a "normal" array 09:44
tadzik hmm, is there already a proxy that makes Bot::BasicBot::Pluggable modules work in IRC::Client? :) 09:46
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sammers Hi all 10:08
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moritz hi sammers 10:16
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Zoffix m: sub slow { sleep 2; say "Slow is run" }; start 0 or slow; say "non block"; sleep 3 10:16
camelia rakudo-moar 15ee3c: OUTPUT«non block␤Slow is run␤»
Zoffix moritz, ^ it seems to be the same as one() or two() for 1..10;
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moritz Zoffix: I just looked at --target=ast output and came to the same conclusion 10:18
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sammers hi mortiz 10:24
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masak greetings, #perl6 11:08
MasterDuke AlexDaniel: putting 'no precompilation' at the top of Foo2.pm6 fixed it for me 11:09
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nine MasterDuke: AlexDaniel has quit an hour ago 11:25
MasterDuke ahh, better .tell him, thanks 11:26
.tell AlexDaniel putting 'no precompilation' at the top of Foo2.pm6 fixed it for me
yoleaux MasterDuke: I'll pass your message to AlexDaniel.
nine MasterDuke: IRC::Client has a try require in its mainline. Reminds me of LWP::Simple which does the same and also seems to have precompilation issues. 11:27
masak 007 has a (warm) bootup of 0.7s 11:31
that's... quite cool, actually
it doesn't feel slow
CIAvash nine: I think HTTP::UserAgent had the same issue but RabidGravy fixed it 11:33
RabidGravy yes, a while back, though I thought I sent a patch to LWP::Simple too
clearly I didn't :-\ 11:34
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nine CIAvash: yes, HTTP::UserAgent does the try require at runtime in a method. 11:35
Oddly enough though, I fail to write a minimal testcase for this issue. But I should be lying down and get some rest anyway. 11:36
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kalkin- hi 11:45
brrt hi kalkin
MasterDuke nine: that does seem to be it. putting the 'try { require ... }' in a sub fixes it 11:46
brrt ohai masak
MasterDuke Zoffix: ^^^ re precomp and IRC::Client 11:47
kalkin- Just wanted to thank for extending the documentation page "Traps to avoid". It helped me
dalek k-simple: 100d514 | jgrabber++ | .travis.yml:
Trying to fix CI builds on mac
 11:50
k-simple: f2d2599 | lizmat++ | .travis.yml:
Merge pull request #57 from jobegrabber/fix-travis-ci-on-mac

Trying to fix CI builds on mac
kalkin- I currently use for an object new(*%params) { my $r = self.bless(|%params); do some stuff like tap events; return $r } 11:53
But docs on traps say something about using BUILDALL
why does there exists a new method, if actually everything is happening in BUILDALL? 11:54
When do i overwrite which method?
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lizmat kalkin-: BUILDALL is actually the workhorse for bless() 11:56
the default .new calls bless
you can create your own .new in a class, set up a hash, then call bless(|%hash)
if you don't want to use the standard build methods, you can do all the work in .new if you want 11:57
kalkin- lizmat: yes i know about bless -> BUILDALL. But what is the purpose of using new instead of using BUILD/BUILDALL
brrt wonders how that ties into the representations issue
jnthn When you want to change the interface to construction, generally 11:58
lizmat because it gives you an opportunity to preprocess / test / change the parameters before blessing ?
jnthn Like if you wanted to expose a positional interface rather than a named args one.
kalkin- Can't i do the same with BUILDALL?
brrt eh...
lizmat you could, but the default BUILDALL is highly optimized... 11:59
jnthn I'm not sure you should do anything much with BUILDALL
lizmat TIMTOWTDI :-)
brrt bless /creates/ the object in perl6, right?
jnthn Because my expectation is we'll start to code-gen specialized BUILDALLs at some point, but having your own custom one will force the slow path :)
brrt: Strictly, .CREATE does, but bless uses that 12:00
brrt aha
kalkin- jnthn: But traps to avoid doc page shows how to implement BUILDALL instead of using new
jnthn kalkin-: I didn't write that. :)
kalkin- In the BUILD preverents automatic attribute initialization from constructor arguments. Before reading that i achieved the same results with implementing an own new 12:01
brrt well you can do both...
i guess thay BUILDALL is just downstream from new 12:02
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jnthn Yes, the presumption is that if you write a BUILD, you'll be taking care of initialization. I don't personally find that much of a pain, but apparently some people do and so go looking to patch up BUILDALL instead :) 12:03
brrt typically in OO we try to add/change functionality in just the right method
kalkin- brrt: yes but what is the supposed perl6 way? I think especially now at the beginning of learning perl6 I need (and may be whole perl6 community) to establish good praxises. And currently if I think about new/BUILD/BUILDALL I'm not sure what good practise is.
brrt good practices are for mature languages 12:04
imho at least
mst jnthn: is there an example comparing this to Moose somewhere for those of us coming from perl5? 12:05
brrt i'd argue for using BUILDALL because it leaves more of the regular initialization chain intact
mst every time I look at new/BUILD/BUILDALL in perl6 I end up at "I'm not sure what good practice is, because everything seems less DWIM than perl5, and are we sure this isn't misdesigned?"
kalkin- ok I will try to ask the other way round: which one is my __init__() [python] or my public MyObject() {} [java] 12:06
brrt it may be overdesigned/overdecomposed
mst why do you need either?
kalkin- in perl6
mst in python and java having to write my own constructor is why I hate their OO 12:07
and go back to perl5, which is superior
kalkin-: seriously, __init__ in python to me is "that thing I get forced to write because I'm not using perl5/perl6" :) 12:08
brrt actually __init__ is BUILDALL
kalkin- yes
jnthn mst: No idea; if there is I haven't seen it.
brrt new is __new__
jnthn lunch; bbl
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kalkin- ok i just need to tap some signals and events, I currently do it in new(). Is it okay? or may be i could even get rid of new and do it differently? 12:09
ohh and one of events is only provided after executing bless()
mst isn't there a one-line you can put in BUILD's signature that gets the default slot population
and then you do it in BUILD
overriding new() is I think basically always an error, and insane :)
kalkin- One of event sources i need to tape is only created after calling bless 12:10
masak mst: I disagree, though not strongly :)
kalkin- s/tape/tap
mst masak: 'basically always' in the same sense as implementing AUTOLOAD in perl5
masak m: say Complex.new(3, 4).abs 12:11
camelia rakudo-moar 15ee3c: OUTPUT«5␤»
masak mst: ^
mst masak: surely that's just a custom BUILDARGS
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mst or did perl6 desugar that as well? 12:12
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pmurias konobi: the $$foo style methods are the ones used by nqp-js internall (not called directly from Perl 6/NQP) code 12:12
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yoleaux 09:32Z <konobi> pmurias: are all the functions/methods with '$$' internal to the js nqp-runtime? 12:12
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brrt there is evidently much documentation yet to be written :-) 12:13
mst the 5to6 doc is, compared to my ideal world, missing a section :) 12:15
brrt well volunteered? :-p 12:16
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mst I doubt that'd be a good idea, given if I wrote it right now, it'd say "BUILD and BUILDALL are backwards, use perl5 and Moo(se) if you need to write a BUILD and hope 6.d makes perl6 OO usable" 12:17
lizmat: I don't understand how perl6 has ended up more typing than 5 :(
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El_Che I try to avoid init() in go when possible. It seems to be adviced for things like logging initiation and db and the like 12:18
mst tapping supplies seems like a sensible thing to do in BUILD 12:19
if it didn't completely break object initialisation at the same time
kalkin- mst: but in in BUILD is the supplier not instantiated yet
(at least in my case)
mst kalkin-: oh? why not? how are you instantiating it?
lizmat mst: personally, I'm in favour of "method new($foo) { self.CREATE!SET-SELF($foo) }; method SET-SELF($!foo) { self } 12:20
mst lizmat: hm?
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kalkin- unit class Term; has $.events-supplier = Supplier.new; has $.events = self.events-supplier.Supply; method new(*%params) { my $r = self.bless(|%params) $r.events.tap{}; return $r} 12:21
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mst right, but surely the .bless() fills out those values 12:21
and then calls BUILD with an object with $self.events already filled
kalkin- yes, but i can't move the tapping into BUILD, can I? 12:22
lizmat mst: aka bypass the entire BUILD/BUILDALL/named interface machinery
mst why not?
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mst lizmat: oh, and do java style constructors manually? ew :) 12:22
lizmat mst: but then again, I am old-school without any Moose exposure
kalkin- mst: docs When you define your own BUILD submethod, you must take care of initializing all attributes yourself
I don't want to do that 12:23
lizmat mst: well, or you just *don't* define anything: class A { has $.foo }; A.new(:foo<bar>) # done
mst hang on, BUILD kills the 'self.events-supplier.Supply' from firing as well?
lizmat: ok, so, kalkin-'s problem in perl5 is
package Term { use Moo; has supplier => (is => 'ro', required => 1), has events => (is => 'lazy', builder => sub { shift->supplier->Supply }); sub BUILD { my ($self) = @_; $self->events->tap(...) } } 12:24
new/BUILDALL are responsible for populating the attributes' values, and BUILD is your own initialisation logiuc, run after the standard stuff
lizmat mst: I don't know enough of Moose to grasp that :-( 12:25
mst lizmat: what it mostly boils down to is that perl6 OO appears to've made decisions that make it more typing and less DWIM than perl5 :(
lizmat mst: well, that could be.... but that's what 6.c is :-) 12:26
mst yep. we can always fix it for 6.d, and in the meantime, there's Inline::Perl5 to get at Moose for when perl6 doesn't work right yet 12:27
kalkin- I'm not sure if it's really a problem.
I mean what's bad about overwriting new for this purpose?
are there any drawbacks?
mst BUILDs are submethods so stack 12:28
sometimes I've needed that
brrt kalkin-: code is cheap, try it out, we won't judge
kalkin- Actually it looks to me like neatly wrapping the boring initialization stuff (like Pythons self.foo = foo :-O ) and just writing code that matters
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mst yes. which is what BUILD was supposed to be, and is in perl5 12:29
kalkin- brrt: well i have it running, it's okay
mst but oh well
kalkin-: yes, it doesn't seem like a problem to me
baaasically the confusion here is that your
brrt can't you just call nextsame in BUILDALL 12:30
mst new(*%params) { my $r = self.bless(|%params); <stuff>; return $r }
in perl5, is
sub BUILD { <stuff> }
I'm trying to translate the perl5 ways to perl6 and then getting stuck because perl6 is uglier and more typing, and that isn't what's happened when I translate other perl5 to perl6 ;) 12:31
kalkin- i see
:) 12:32
mst I guess in perl6 what I want really is 'after BUILDALL'
kalkin- mst: is there something like this? 12:33
brrt maybe BUILDFINISH
mst kalkin-: I dunno, I'm now lost 12:34
kalkin- well the good thing about the whole discussion is, that i don't need to change the code, I seem to be doing it the way it supposed to be
thanks to all :)
pmurias mst: your problem is that you want to have custom initialization in BUILD + have the default behavior of setting attributes? 12:35
mst pmurias: yeah, cos that's how M* OO works and is something that, for pretty much kalkin-'s exact case, I do all the time in reactive code
pmurias would having something like "submethod BUILD(%params) {something-with-a-good-short-name-to-to-build-attributes-in-the-default-way; <stuff>}" work? 12:37
mst: assuming we can come up with a good short name
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mst pmurias: probably. it just ... seems odd to me. 12:38
I don't think I can really have a proper opinion without managing to draw up a comparison table or something 12:39
.. also, I forgot to take my anti-allergy meds when I woke up and I think my sinuses hate me
so I'm not 100% sure I'm actually making sense yet
ufobat what is the difference between await $p and $p.result()?
pmurias mst: it would work sort of like {*} in protos does 12:41
mst pmurias: metacpan.org/source/MSTROUT/App-Pr.../Client.pm is the pattern 12:42
if that helps make sense of my waffling
pmurias mst: so it would end up something like: submethod BUILD(%params) { {*}; $!stream.configure(on_read => -> *@args {self.handle_read(|@args)}, on_closed => -> *$args {self.handle_closed(|@args)})} 12:47
mst yeah
I think basically the difference stems from the fact that perl6 sees it as 'each BUILD is responsible for that class/role's attributes'
whereas in M* the default new() stuff handles all the attribute init, and BUILD is just for additional custom construction
and if you want to handle initialisation of an attribute yourself you set 'init_arg => undef' 12:48
which seems like better huffmaning to me, but it's totally possible that's just because it's what I'm used to
brrt you want an AFTERBUILD, is how i see it 12:51
mst yes, pretty much spot on
psch am i misunderstanding that this is mostly about "listing all the Attributes in the BUILD signature is too much to type"? 12:52
mst also that, unless I'm completely confused, 'has $.foo = <default>' doesn't fire the <default> this way?
psch ah, i must've missed that
yeah, it doesn't afaik
mst right, so adding a BUILD means I (a) have to repeat my attribute names (b) have to move my default code 12:53
brrt okay.. i d
mst which, when you're used to M*, is ... weird
psch yeah, i can see that being annoying
mst and, yeah, basically an AFTERBUILD would do what I'm used to M* BUILD doing and make it all go away 12:54
brrt i see your point and i think you are correct
i have no idea how much wiggleroom we now have in implementing it 12:55
mst I would, naively, have expected BUILD to do the simple thing by default
and to need to explicitly ask for 'having to write my own slot population code'
since that seems like the less common requirement
I guess if I mentally think of BUILD as POPULATE
then AFTERBUILD being AFTERPOPULATE is completely sane 12:56
and possibly a better name for the thing I want than BUILD would've been anyway
brrt part of the issue may be that BUILD is a submethod, hence overriding it is destructive
mst if we had before/after/around, I'd be completely happy with 'after submethod BUILD' 12:57
brrt hmmmm 12:58
interesting idea 12:59
mst I mean, it's notable that, in M* *roles*, idiomatic is to write 13:00
sub BUILD {}; after BUILD => sub { ... };
so 'after BUILD' is already an idiom M* people should be familiar with 13:01
brrt i'm inclined to think that 'after' could be implemented with some metahackery or as a trait
mst I really don't mind it being different, I'm just coming from the principle of "a common case in perl5 OO should not be harder or more typing in perl6, because wtf" 13:02
psch the problem with an 'after' trait as i see it is that you don't really want to declare BUILD, because you want the default behavior
so there's not really a spot to trait it 13:03
brrt that seems a binding issue to me? 13:04
psch i'm not sure what that means
maybe i'm also wrongly assuming BUILD itself is what should be traited, and a trait on the class is the better idea 13:05
brrt what i mean is that if you'd have: class Foo { method foo() is after BUILD {...} } 13:06
and that BUILD should conceptually exist 13:07
mst I think my problem is that ... ok, let's avoid the word BUILD for a second 13:08
there's two things here, POPULATE, i.e. 'set the attributes up', and POSTPOPULATE, i.e. 'do other tweakage'
brrt okay :-)
aye
TWEAK :-P 13:09
mst in perl5/M*, POPULATE is inlined into new(), effectively
except you can opt-out on a per-attribute basis with 'init_arg => "undef"'
brrt submethod? method?
aye... perl6 hav
mst we don't have submethods, except we sort of emulate them, let's handwave that bit for the moment please
and so M* BUILD is POSTPOPULATE, but can be used for population of an init_arg undef attribute in the (rare IME) case you want that 13:10
whereas in perl6, BUILD is POPULATE, and so if you only want it for POSTPOPULATE, you need to duplicate the population logic
so that, to me, makes a lot more sense of the differences 13:11
brrt or override new
brrt nods
mst yeah
brrt so i think that postpopulate is a valid hook 13:12
mst note that overriding new() is basically nonviable in M*, but we have BUILDARGS that handles 'convert the arguments to new() into a hash of values for attributes'
so that turns out to to be a problem for us in practice
*to not be 13:13
brrt: right, and overriding new by calling bless() like kalkin- did complicates life if you try and do it more than once
I think *something* submethod like for this (i.e. that composes like BUILD submethods do) would be well worthwhile 13:14
brrt i'm not sure if we have something like BUILDARGS and I'm not sure we should either
agreed and i see why kalkin- asked 13:15
mst BUILDARGS is really just a signature mangler
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mst so ... presumably you can do something like 13:15
method new ($foo) { call-original-new(:foo($foo)) }
(not sure what call-original-new is called here) 13:16
and that's equivalent to perl5
brrt not sure either...
mst sub BUILDARGS ($class, $foo) { return +{ foo => $foo } }
assuming that's there, I don't think perl6 needs BUILDARGS
brrt i think calk-original-new is self.bless... 13:18
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Zoffix m: class Foo { has $.foo; method new ($foo) { nextwith :$foo } }.new(42).foo.say 13:19
camelia rakudo-moar 15ee3c: OUTPUT«42␤»
mst there we go
brrt Zoffix++
mst brrt: except that wouldn't then honour similar stuff in the next new() along
brrt true... ehm... hmmm
mst but, basically, it seems strange to me that just defining a submethod BUILD suddenly opts -all- my attributes out of auto-construction 13:20
I definitely, in terms of how often I need that, like the M* approach of being able to opt -one- of them out but not others
(which, I guess in perl6 you'd have to do that by reimplemting the standard BUILD logic for everything but that one, which ... ew?)
brrt yeah i see 13:21
psch i suppose we could check the custom BUILD's signature and only opt out for params given there
that looks like the easiest solution from here
although it clearly still has drawbacks
mst I feel like what I 'really' want is some sort of magic slurpy
submethod BUILD (*%magic) { 13:22
and that causes everything to get populated normally
brrt hmmm. i think the problem with that is that it completely changes the meaning of BUILD
mst and then I opt out by having
submethod BUILD ($:optout, *%magic) {
well, I don't think it does, you're effectively saying 'assinging to $magic{foo} attempts to assign $.foo' ?
ufobat i dont understand the error here, could anyone give me some kind of advice gist.github.com/ufobat/5883b338aec...bb759d6671 13:23
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brrt m: class A { has $.foo = 3; has $.bar; submethod BUILD(*%args) { nextwith 13:25
camelia rakudo-moar 15ee3c: OUTPUT«5===SORRY!5=== Error while compiling <tmp>␤Missing block␤at <tmp>:1␤------> 3.bar; submethod BUILD(*%args) { nextwith7⏏5<EOL>␤ expecting any of:␤ statement end␤ statement modifier␤ statement modifier loop␤»
brrt damnit samsung keyboard 13:26
moritz ufobat: are any of those lines in the backtrace part of snipped you pasted? 13:27
ufobat: also, calling Supply.tap without an argument looks suspicious to me
ufobat moritz, line 223 of HTTP::Server::Smack is the $promise.result 13:29
moritz ufobat: huh, that line appears twice in the stacktrace... is there any recursion going on, possibly through the coercions from that line? 13:31
ufobat moritz, no, one is from the $promise.cause.say the other is from the $promise.cause.backtrace.full.Str 13:33
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ufobat or that is what i was thinking 13:33
moritz ufobat: ah, right. So the error isn't from the piece of code you've shown us, that's just where the error is printed out 13:34
ufobat yeah it is
right, i have no idea what is going wrong :(
moritz you call .say($str) on a Supplier
the $obj.say($thing) form only works for file handles or similar IO objects 13:35
ufobat and where am i doing that? how do i find out? 13:36
moritz git grep -F '.say' 13:37
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moritz I fear rakudo still swallows backtraces when catching exceptions inside start { } blocks :( 13:38
ufobat *ggg*
thanks :-)
moritz or if you know where the promise comes from, add a try { ... } and a backtrace printing yourself inside that start block 13:39
you're welcome :-)
ufobat i think i am able of finding the problem now :-)
but first.. bbq :D
moritz that's later today for me :-) 13:41
brrt it still rains here... 13:42
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moritz I'm starting to hate likes/hearts on twitter 13:50
I keep thinking "you liked it, but not enough to retweet? thank you!" with no small amount of sarcasm in my mental voice 13:51
mst my client doesn't show me likes 13:52
I continue to appreciate this fact
cognominal 'with' statement and 'with' statement modifier have an altogether different meaning. This is weird. Also 'with' statement modifier is absent from docs.perl6.org. Not sure if it fits in an existing category 13:53
moritz: often I use like for things that contain a link to somthing I want to read more fully 13:54
CIAvash cognominal: docs.perl6.org/syntax/with%20orwith%20without 13:57
cognominal CIAvash, this is not the 'with' statemenr modifier 13:59
on the other hand I missed the fact, the the "with" statemenr setted $_
CIAvash cognominal: It is mentioned at the end
cognominal CIAvash, oops my bad. But is does not fit the stated "control flow" category 14:01
moritz m: .say given Any 14:03
camelia rakudo-moar 15ee3c: OUTPUT«(Any)␤»
moritz m: .say when Any 14:04
camelia rakudo-moar 15ee3c: OUTPUT«(Any)␤»
moritz when Any { .say }
m: when Any { .say }
camelia rakudo-moar 15ee3c: OUTPUT«(Any)␤»
moritz m: given 42 { .say when Str }
camelia ( no output )
moritz it does look like control flow to me 14:05
cognominal moritz, yes, I was thouroughly confused 14:07
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brrt i continue to be blissfully offline for social media 14:14
kurahaupo brrt: does irc count as "social"? 14:16
brrt well its social
but not social media expert social 14:17
not twitter or facebook, i guess :-)
cognominal When I say so much insanity, it means I badly need to get out for a walk
brrt that is a good idea :-) 14:19
brrt afk too
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dalek c/non-breaking-space: 6a97e5a | Altai-man++ | doc/ (79 files):
Now all entries of `Perl 6|5` are written with non-breaking space
 14:56
TimToady now if we could just teach our editors to autocorrect that... 14:58
mst or we could just use Perl6 and Perl5 like the perl5 community mostly does :)
sena_kun Oops. 15:00
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dalek c/non-breaking-space: a8747c5 | Altai-man++ | doc/ (7 files):
Links with `Perl6`, not `Perl 6`, obviously, were fixed
 15:09
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travis-ci Doc build passed. Altai-man 'Now all entries of `Perl 6|5` are written with non-breaking space' 15:17
travis-ci.org/perl6/doc/builds/148541397 github.com/perl6/doc/commit/6a97e5ae2ddf
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sena_kun About the editor thing... For example, emacs has predictive mode and clones, I think, vim has such tools too. And on linux, checking/fixing it automatically with grep/sed is very simple. 15:20
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nine mst: but then you wouldn't see the difference between the Perl 6 and Perl5 communities! Oh...wait a second... 15:38
mst nine: NEIN NEIN (pun urgency)
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AlexDaniel thanks ↓ 17:08
yoleaux 11:26Z <MasterDuke> AlexDaniel: putting 'no precompilation' at the top of Foo2.pm6 fixed it for me
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AlexDaniel MasterDuke: and thank you for actually fixing it :) 17:09
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sena_kun Can PR for non-breakable 'Perl 6' be merged? cast AlexDaniel, github.com/perl6/doc/pull/780 17:46
AlexDaniel ± 1018 :D 17:48
sena_kun It seems I make only good for nothing contributions these days. 17:50
AlexDaniel sena_kun: “This project is a suite of Perl cross-compilers, including Perl 5-to-6 translation“
not sure if it should have a non-breaking space there, hm… 17:51
sena_kun Oh no, somebody actually tried to read the result. Time to run!
AlexDaniel, the problem is: test fails if you replace it with normal space. 17:52
AlexDaniel :D
sena_kun Tests exactly checks the word 'Perl', space and any digit after it. It will fail in this place with normal space character. 17:53
s/Tests/Test 17:54
AlexDaniel “Where is a list of differences between Perl 5 and 6?” 17:56
again, not sure if we should have a nbsp here 17:57
sena_kun: what's going to happen with this link? github.com/perl6/doc/pull/780/file...23b354fL24 17:58
sena_kun: and is everything alright here? github.com/perl6/doc/pull/780/file...0f40520L11
sena_kun AlexDaniel, maybe we should correct the test itself a bit? For example, not 'Perl $digit', but only 'Perl 6' occurences? But `Perl 5` seems needed too. 17:59
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AlexDaniel sena_kun: Perl \d is OK, no problem with that 17:59
sena_kun Okay then. 18:00
AlexDaniel sena_kun: another link: github.com/perl6/doc/pull/780/file...b58ff9L399
sena_kun AlexDaniel, 1.The link is changed only in name part, so I think, it's okay, if Pod parser is okay with that. I'll build docs now and check it. 18:01
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sena_kun About '??' symbol... Hmm, it's strange, since in the emacs I see a non-breaking space. 18:02
And `git diff` sees a non-breaking space also. 18:03
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sena_kun I'll check ipc.pod6 better now. 18:04
AlexDaniel sena_kun: another file with ?? is doc/Language/tables.pod6 18:05
sena_kun: and doc/Programs/00-running.pod6 18:06
may be some encoding issue
sena_kun Yes, I see 20 occurences using search.
AlexDaniel yeah
sena_kun: OK, here is a broken example: github.com/perl6/doc/pull/780/file...a490fL1169 18:07
sena_kun: and one more example right below it
sena_kun m: say "Perl 6".ords; # 80 101 114 108 32 54 18:08
camelia rakudo-moar 15ee3c: OUTPUT«(80 101 114 108 32 54)␤»
sena_kun Ah, my bad.
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AlexDaniel m: say "Perl 6".ords; # 80 101 114 108 32 54 18:09
camelia rakudo-moar 15ee3c: OUTPUT«(80 101 114 108 32 54)␤»
AlexDaniel m: say "Perl 6".ords; # 80 101 114 108 32 54
camelia rakudo-moar 15ee3c: OUTPUT«(80 101 114 108 160 54)␤»
sena_kun Yes, it needs reverting.
But I'm not sure I can fix '??' issue, since `grep -r "Perl??" doc` gives me nothing. 18:10
AlexDaniel sena_kun: well, just change the comment?
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sena_kun And next example. 18:11
AlexDaniel yes
sena_kun Just started local build: all '??' characters seem as normal non-breaking space. But it gives us nothing, since it can be only my result, not the others. 18:12
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AlexDaniel sena_kun: yea I'm find the difference 18:14
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sena_kun Links work as usual locally. 18:16
AlexDaniel okay 18:17
dalek c/non-breaking-space: ac13c67 | Altai-man++ | doc/Type/Cool.pod6:
Examples were fixed
 18:22
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AlexDaniel sena_kun: I think that we can ignore ?? thing 18:27
sena_kun: it seems like github thinks that the files are not in UTF8 or something
maybe it recognizes them as pod5 files or something, I don't know 18:28
sena_kun AlexDaniel, can you test it locally?
AlexDaniel sena_kun: I opened it with an editor and see no differences between files 18:29
I mean, these are just regular files with regular non-breaking spaces in them, no problems whatsoever 18:30
sena_kun `file -i doc/Language/ipc.pod6` gives me `doc/Language/ipc.pod6: text/plain; charset=utf-8`. 18:31
gfldex we could add use v6.c; in all *.pod6 to make clear what we mean 18:33
sena_kun AlexDaniel, see raw.githubusercontent.com/perl6/do...e/ipc.pod6
It seems the only place where you can see 'Perl??' thing is github diff.
AlexDaniel sena_kun: I am pretty sure that it is just github trying to be smart 18:34
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timotimo thankfully 18:35
AlexDaniel gfldex: but we already use .pod6 extension!
dalek c: 6a97e5a | Altai-man++ | doc/ (79 files):
Now all entries of `Perl 6|5` are written with non-breaking space
 18:36
c: a8747c5 | Altai-man++ | doc/ (7 files):
Links with `Perl6`, not `Perl 6`, obviously, were fixed
c: ac13c67 | Altai-man++ | doc/Type/Cool.pod6:
Examples were fixed
c: d82e667 | (Aleks-Daniel Jakimenko-Aleksejev)++ | doc/ (78 files):
Merge pull request #780 from perl6/non-breaking-space

Now all entries of `Perl 6|5` are written with non-breaking space
AlexDaniel sena_kun: ;)
timotimo yay
sena_kun AlexDaniel, thanks a lot for the review!
AlexDaniel I am sure that everything is alright, but if I missed anything we can fix it later. No reason to merge I think :) 18:37
gfldex AlexDaniel: file names and extensions don't survive pipes. There is good reasion why *nix got the magic file and what happens in its absense can be observed on windows.
AlexDaniel gfldex: right
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gfldex AlexDaniel: it's not just pipes ofc. If you look on he we deal with it when we use modules, you will see that the compunit that hold MAIN will pretty much all the time slurps before stuff is handed over to a module. 18:39
jgrabber Hello! When trying to load a library (.dll) for NativeCall directly from a module's resource folder I get the error 'Cannot locate native library '..rakudo\share\perl6\site\resources\...dll': error 0x7e' . Copying the dll to a temporary folder enables me to load the copy. Is this behaviour expected? 18:40
AlexDaniel no reason not to merge*, hehe 18:41
gfldex m: my role MIME::Perl6 {}; my IO::File $f does MIME::Perl6; say "pleased" if $f ~~ MIME::Perl6;
camelia rakudo-moar 15ee3c: OUTPUT«pleased␤»
Xliff FROGGS_, you around? 18:45
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dalek c: fff3317 | (Aleks-Daniel Jakimenko-Aleksejev)++ | doc/Language/faq.pod6:
“Perl 5 and 6” → “Perl 5 and Perl 6”

I think that it is technically more correct, and it also does not look so strange with non-breaking space.		 18:54
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AlexDaniel sena_kun: I think we'll just leave “Perl 5-to-6 translation” as is with nbsp… It doesn't really matter I think 18:57
in fact, maybe it is right 18:58
sena_kun AlexDaniel, if we want our tests to pass, then sure. And I don't think it matters *too much*, yes. 19:00
AlexDaniel sena_kun: we can always modify our test to check if it is not “Perl 5-to-6”, heh… 19:01
sena_kun AlexDaniel, ...and a bunch of other similar phrases, yes. (: Anyway, issue is closed. 19:02
kalkin- How can i check if a given method implements some specific trait? 19:14
Especially I want to get a list of all mandatory fields from the META6.new() object
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lizmat kalkin-: there's no mechanism that keeps track of which traits a method has 19:16
a trait is nothing other than a sub that gets called at compile time on the method object
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lizmat it is free to do whatever it wants 19:16
kalkin- That's a pitty
lizmat for example: the implementation of is-hidden-from-backtrace: 19:17
multi sub trait_mod:<is>(Routine:D $r, :$hidden-from-backtrace!) {
$r.^mixin( role { method is-hidden-from-backtrace { True } } );
}
so, if you want to check if a method has this trait, you'd do:
$method.?is-hidden-from-backtrace 19:18
m: sub a() is hidden-from-backtrace { }; say &a.?is-hidden-from-backtrace # example 19:20
camelia rakudo-moar 15ee3c: OUTPUT«True␤»
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kalkin- lizmat: Aehm i still kind of confused how i would apply what you explained to github.com/jonathanstowe/META6/blo...b/META6.pm How do I adress a trait which is inside a class 19:24
from the outside of the class
FROGGS_ Xliff: I am 19:25
lizmat kalkin-: from what I can see, the class doesn't allow that 19:26
unless the MetaAttribute::Specification role would be exported 19:27
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lizmat or you would use the MOP to get at it, and then smartmatch on that 19:27
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lizmat perhaps RabidGravy can tell you more about it :-) 19:27
kalkin- lizmat: thank you i will experiment some more with that 19:28
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Xliff FROGGS_, I am running into serious issues with 07dtd. Do you mind me submitting the PR as is and you taking a look at it to help me figure out what is wrong? 19:34
Some seriously weird issues, too. I have checked in my copy of it. Would you mind checkout my fork, 07dtd branch, and taking a look at the later tests?
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FROGGS_ sure 19:35
Xliff In addition, I know there is a style you have adopted for classes and such. Would really appreciate your criticism on the later changes I have made to get 07dtd to the point where it fails the last 11 out of 52 tesyts.
s/tesyts/tests/ 19:36
OK. I will submit the PR, then and we can whack this thing back into shape!! =D
FROGGS_ :o) 19:38
Xliff github.com/FROGGS/p6-XML-LibXML/pull/5 19:40
I will be in and out during the day. I think the best bet would be to comment on the PR. Feel free to ping me here, as well. 19:41
Thanks, FROGGS_!
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FROGGS_ k 19:41
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s34n_ I'm reading a snippet from blogs.perl.org/users/zoffix_znet/20...erl-6.html that I don't understand.. 19:58
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s34n_ Under the heading "But... But... But..." there is a snippet that does: my $copy = $original but Better; 19:59
lizmat that mixes in the role or an Enum 20:00
by the name of "Better"
s34n_ oops. I just read the next line, which I missed before. nm
lizmat :-)
s34n_ how about my $original = (Foo but Better).new: :attr<original>; ? 20:02
so I don't have to create an object and a copy...
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masak Xliff: one general comment: some `while` loops and `if` statements have parentheses that aren't needed 20:03
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s34n_ my $original = Foo.new: :attr<original> but Better; <--? 20:04
masak Xliff: and some of the conditions are tortuous
like `! +$frag.getNodePtr == +$ref.getNodePtr` -- could be written simply as `$frag.getNodePtr != $ref.getNodePtr` 20:05
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s34n_ what's the perl6 equivalent of AUTOLOAD? 20:14
FROGGS_ method FALLBACK
Xliff masak: LOL! You are absolutely correct. That was me being flustered. 20:16
And you have to remember, I learned C first before even Perl5.
C-isms are buried in my DNA and are hard to unlearn.
Although I don't know what I was drinking when I wrote `! +$frag.getNodePtr == +$ref.getNodePtr` 20:17
Probably Gin.
FROGGS_ *g*
Xliff Also, Sublime Text Edit likes "helping" me. Most times I hit tab after a "while" it inserts the parens automatically. 20:19
I would try and fix that, but I haven't had the time to learn how to adjust Sublime's plugin structure. 20:20
FROGGS_ I guess that's why I love SciTe
s34n_ why is it so hard to google documentation on FALLBACK?
Xliff (suuure.... blame your tools, EEDIOT!)
FROGGS_ hehe
Xliff fits himself for the special dunce cap. 20:21
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kalkin- if i have an class field name as string $f how do i set $my-inst."$f" = "foo";? 20:21
i know that i can call the the getter with $my-inst."$f"(), but how to call the setter?
FROGGS_ s34n_: github.com/perl6/roast/blob/ab7476...fallback.t
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timotimo kalkin-: the getter is the setter 20:22
Zoffix kaare__, same way. It returns a writable thing
FROGGS_ aye, try: $my-inst."$f"() = "foo"
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Zoffix *kalkin- 20:22
kalkin- ohh, that's not obvious.
Zoffix s34n_, I don't see it at all. Keep in mind the docs are still work in progress. Perl 6 is pretty new
dj_goku Zoffix: great article at your updates to irc::client.
Zoffix Thanks. 20:23
s34n_, that's all I see: design.perl6.org/S12.html#FALLBACK_methods
kalkin- thanks friends it works!
Zoffix m: class Foo { method FALLBACK ($name, |args) { say "You called $name with {args.perl}" } }.new.blah: 'blah', :blah 20:24
camelia rakudo-moar 15ee3c: OUTPUT«You called blah with \("blah", :blah)␤»
konobi .tell pmurias getting a bunch of woes with CodeRef and $call vs $apply... =0/ 20:26
yoleaux konobi: I'll pass your message to pmurias.
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pmurias_ konobi: woes? 20:49
20:50 pmurias_ is now known as pmurias
pmurias konobi: is that causing problems or just confussion? 20:52
yoleaux 20:26Z <konobi> pmurias: getting a bunch of woes with CodeRef and $call vs $apply... =0/
pmurias konobi: codeRef.$$apply(args) should do the same as codeRef.$$call.apply(codeRef, args) 20:53
tbrowder possible pop use of p6: programming interface for the Lego Ev3 robot. current pop prog interface is python. see www.ev3.org for more info 20:54
folks here with children in school may be already aware of the Lego robot influence in academia 20:56
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dalek c: 7b9e2ea | (Wenzel P. P. Peppmeyer)++ | doc/Language/typesystem.pod6:
add FALLBACK to index
 20:58
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pmurias as kid (who had a LEGO robot) always felt they were an excuse for old engineers to play with LEGOs 20:58
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tbrowder pmurias: you may be on to something! 21:01
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kalkin- how can i get all the subroutines existing in the current script? 21:03
moritz kalkin-: you can't. Subroutines can exists in inner scopes, and you can't get those 21:04
being lexical and all that
pmurias kalkin-: why would you want to do that?
moritz you can however inspect &MY:: for routines declared in the current scope
kalkin- I want to call it from inside the USAGE() to manipulate the output
moritz and &OUT::MY
m: sub f() { }; say &MY::.keys
camelia rakudo-moar 1035ed: OUTPUT«5===SORRY!5=== Error while compiling <tmp>␤Undeclared name:␤ MY used at line 1␤␤»
moritz m: sub f() { }; say MY::.keys 21:05
camelia rakudo-moar 1035ed: OUTPUT«($=pod !UNIT_MARKER EXPORT $_ $! ::?PACKAGE GLOBALish $¢ $=finish &f $/ $?PACKAGE)␤»
moritz m: sub f() { }; say MY::.keys.grep(Callable)
camelia rakudo-moar 1035ed: OUTPUT«()␤»
moritz m: sub f() { }; say MY::.grep({.value ~~ Callable})>>.key
camelia rakudo-moar 1035ed: OUTPUT«(&f)␤»
kalkin- Thanks! 21:07
dalek c: 2b7bed6 | (Wenzel P. P. Peppmeyer)++ | doc/Language/typesystem.pod6:
doc FALLBACK
 21:16
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dalek c: 0eb5e69 | (Wenzel P. P. Peppmeyer)++ | doc/Type/Signature.pod6:
doc subsignatures
 21:23
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dalek c: 9f1fe4f | (Wenzel P. P. Peppmeyer)++ | doc/Language/typesystem.pod6:
link to subsignatures
 21:40
gfldex Sisyphus told me how to finish the docs. :-> 21:41
m: say ⸨1,(2,)⸩; 21:46
camelia rakudo-moar 1035ed: OUTPUT«5===SORRY!5===␤Argument to "say" seems to be malformed␤at <tmp>:1␤------> 3say7⏏5 ⸨1,(2,)⸩;␤Bogus postfix␤at <tmp>:1␤------> 3say 7⏏5⸨1,(2,)⸩;␤ expecting any of:␤ infix␤ infix stopper␤ pos…»
konobi pmurias: yeah, i seems like it might be caught in some sort of bootstrap loop 21:48
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konobi pmurias: github.com/konobi/nqp/tree/konobi-tidy 21:54
dalek c: 8edb16d | (Wenzel P. P. Peppmeyer)++ | doc/Language/packages.pod6:
add pseudo packages to index
 22:06
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masak m: class A::B {}; class C { has A::B $.ab .= new } 22:08
camelia rakudo-moar dd0fe7: OUTPUT«===SORRY!===␤Could not locate compile-time value for symbol A::B␤»
masak rt.perl.org/Ticket/Display.html?id=126975
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socomm Is Larry Wall here? 22:51
masak he's been known to appear in various guises, yes 22:52
would you like to relay a message?
socomm Live long and prosper. \/
masak consider it relayed 22:53
22:54 socomm left
masak ...and come back soon 22:54
gfldex i just found use for: sub infix:<|,>(@l, @r){ |@l, |@r} 22:55
in: my @exclude = <. ..>|, $exclude.split(',');
(i don't like flat) 22:56
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konobi .tell pmurias yeah, there seems to be some mismatch between the code-ref.js and the Operations.nqp 23:09
yoleaux konobi: I'll pass your message to pmurias.
masak gfldex: that looks to me like it should be a chaining operator 23:11
BenGoldberg thinks it looks like linenoise. 23:18
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BenGoldberg What happens if you wrote: my @excluse = <. ..>, slip($excluse.split(',')); ? 23:18
masak BenGoldberg: did you mean `;` ? 23:19
oh, wait. you didn't.
BenGoldberg m: my $ex = 'a,b,c'; my @e = <. ..>, $ex.split(',').slip; @e.say;
camelia rakudo-moar 373634: OUTPUT«Method 'slip' not found for invocant of class 'List'␤ in block <unit> at <tmp> line 1␤␤»
BenGoldberg m: my $ex = 'a,b,c'; my @e = <. ..>, slip($ex.split(',')); @e.say;
camelia rakudo-moar 373634: OUTPUT«[(. ..) a b c]␤»
BenGoldberg m: my $ex = 'a,b,c'; my @e = <. ..>.Slip, $ex.split(',').Slip; @e.say; 23:20
camelia rakudo-moar 373634: OUTPUT«[. .. a b c]␤»
masak seems to work OK.
BenGoldberg m: sub infix:<slippy> { map { .Slip } @_ }; my $ex = 'a,b,c'; my @e = <. ..> slippy $ex.split: ','; @e.say; 23:22
camelia rakudo-moar 373634: OUTPUT«5===SORRY!5=== Error while compiling <tmp>␤Missing comma after block argument to map␤at <tmp>:1␤------> 3sub infix:<slippy> { map { .Slip }7⏏5 @_ }; my $ex = 'a,b,c'; my @e = <. ..> ␤ expecting any of:␤ infix␤ infix s…»
BenGoldberg m: sub infix:<slippy> { map *.Slip, @_ }; my $ex = 'a,b,c'; my @e = <. ..> slippy $ex.split: ','; @e.say;
camelia rakudo-moar 373634: OUTPUT«[. .. a b c]␤»
BenGoldberg On the one hand, I'm aware that | is the same as slip, on the other hand, I think that spelling things out can result in more comprehensible code. 23:25
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gfldex m: dd [<a b c>, (1,2,3).Slip, <d e f>] 23:40
camelia rakudo-moar 373634: OUTPUT«[("a", "b", "c"), 1, 2, 3, ("d", "e", "f")]␤»
gfldex m: sub infix:<|,>(@l, @r){ |@l, |@r}; dd [<a b c> |, (1,2,3) |, <d e f>]
camelia rakudo-moar 373634: OUTPUT«["a", "b", "c", 1, 2, 3, "d", "e", "f"]␤»
gfldex BenGoldberg: compare the the two ^^^ 23:41
m: dd [|<a b c>, |(1,2,3), |<d e f>]
camelia rakudo-moar 373634: OUTPUT«["a", "b", "c", 1, 2, 3, "d", "e", "f"]␤»
23:43 girafe joined
gfldex ,| is more like a list constructor that creates a flat list. Calling .Slip on each element looks a bit like an afterthought. 23:44
dalek c: be93ca1 | (Wenzel P. P. Peppmeyer)++ | / (2 files):
add util/extract-examples.p6 and make target extract-examples
 23:46
s34n_ class A { has $.b; method c(){...} method d(){ return ->{return $.c); } <-- do all the $. point to A? 23:49
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timotimo $.foo is just sugar for self.foo 23:50
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s34n_ rather, class A { has $.b; method c(){...} method d(){ return ->{return $.c}; }} 23:50
timotimo: yes. so is self an instance on A? 23:51
timotimo the little block you return from d closes over the self that was used for calling method d
not necessarily
could be an instance of a class that derives from A
s34n_ perfect
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s34n_ it's the invocant of d, right? 23:51
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timotimo that's right 23:52
exact same as if you had something like "my $theself = self;" before the ->{...} and then using $theself inside the block
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