»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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Xliff How do I access a hash, dynamically? Please not I am not talking dynamic variables in the * sense, but a variable name that is formed programatically. 00:48
::("%variable_name") maybe? 00:49
m: my %a = (a => 1); dd ::("%a");
camelia rakudo-moar 6a8278: OUTPUT«Hash %a = {:a(1)}␤»
geekosaur may need to use '' instead
Xliff Oooo!
rakudo++ # Able to work out stuff on your own.
Well... 00:50
m: my %a = (a => 1); my $var = "a"; dd ::("%$var");
camelia rakudo-moar 6a8278: OUTPUT«Hash %a = {:a(1)}␤»
Xliff Awesome.
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awwaiid m: my %a = (a => 1); my $var = '%a'; dd ::($var) 00:52
camelia rakudo-moar 6a8278: OUTPUT«Hash %a = {:a(1)}␤»
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awwaiid you should think of the % as part of the name of the var, such that separating it out is unnatural 00:53
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bioduds hey there 00:55
===SORRY!=== Error while compiling hello.pl Can't use unknown trait 'is required' in an attribute declaration.
this is weird 00:56
has $.name is required;
awwaiid hm
in a class? 00:57
bioduds yes
in a class
awwaiid link the whole example maybe
'cause seems like that should work
Xliff awwaiid: Given interpolation, does it really matter?
bioduds #!/usr/bin/env perl6 use v6; class Human { # CLASS ATTRIBUTE - like static my $.species = "Homo Sapiens"; # Attributes has $.name is required; has $.age is required is rw; # is rw so that it can be modified later has $.sex is required; method talk { return "Money Talks!"; } } my $human = Human.new( name=>'Eduardo', age=>36, sex=>'M' ); say $human.age ~ " start age"; $human.age = 37; say "One year later... "
tbrowder Xliff: that is why i asked the question earlier and mentioned docs on hash are sketchy. see gdflex's answer to me
awwaiid Xliff: doesn't matter in the technial sense at all, more a philosophical / strategic suggestion 00:58
Xliff m: $a = { hex => '#404040', red => 64, green => 64, blue => 64 }; my $arr = [ $a{keys $a}:p.flat ]; dd $arr;
camelia rakudo-moar 6a8278: OUTPUT«5===SORRY!5=== Error while compiling <tmp>␤Variable '$a' is not declared␤at <tmp>:1␤------> 3<BOL>7⏏5$a = { hex => '#404040', red => 64, gre␤»
Xliff m: my $a = { hex => '#404040', red => 64, green => 64, blue => 64 }; my $arr = [ $a{keys $a}:p.flat ]; dd $arr;
camelia rakudo-moar 6a8278: OUTPUT«Array $arr = $[:red(64), :green(64), :blue(64), :hex("#404040")]␤»
tbrowder Xliff: that should be gfldex 00:59
bioduds no errors there
Xliff awwaiid: Understood. That was more an optimization since I am only working with programmatical hashes (can't say "dynamic" anymore!)
bioduds ran in another machine
awwaiid m: class Human { has $.name is required; has $.age is required is rw } ; my $human = Human.new( name=>'justice', age=>79, sex=>'M') ; say $human
camelia rakudo-moar 6a8278: OUTPUT«Human.new(name => "justice", age => 79)␤»
awwaiid m: class Human { my $.species = 'homo sapiens'; has $.name is required; has $.age is required is rw } ; my $human = Human.new( name=>'justice', age=>79, sex=>'M') ; say $human 01:00
camelia rakudo-moar 6a8278: OUTPUT«Human.new(name => "justice", age => 79)␤»
bioduds ===SORRY!=== Error while compiling hello.pl Can't use unknown trait 'is required' in an attribute declaration. at hello.pl:9 ------> expect
geekosaur this would be easier if you'd use a pastebin of some kind instead of cramming it into an irc line 01:01
awwaiid I'm surprised my $.species works, bu tit doesn't have an is required so probably irrelevant
bioduds it is weird
awwaiid I guess that's a class-scoped var 01:02
bioduds cause in another machine runs fine
awwaiid oh that's very interesting
same rakudo?
bioduds i installed the same way on both
sudo apt install rakudo
awwaiid check it anyway :)
perl6 --version
bioduds how to check rakudo version?
oh
wait
awwaiid yep 01:03
bioduds so first is
This is Rakudo version 2016.08.1-3-g668dc5c built on MoarVM version 2016.08 implementing Perl 6.c.
awwaiid deliciously up to date
bioduds this above works
second one does not 01:04
This is perl6 version 2013.12 built on parrot 5.9.0 revision 0
awwaiid 2013.12 ya
bioduds very old
awwaiid anything older than about 2015.12 (christmas release) is going to not be worth using
bioduds i installed before sudo apt update I guess
awwaiid could be, or maybe different debians?
bioduds let me rebuild the machine 01:05
awwaiid sounds good
albeit drastic. but machines are just files these days I suppose
Xliff DAGNABBIT! 01:06
Is the use of "require" statements not allowed in pasers?
awwaiid well you don't have to be upset about it -- in unix EVERYTHING is a file anyway, might as well make the machine a file too
is 'pasers' -> 'phasers' or -> 'parsers' ? 01:07
Xliff I get this if I try to require() in BEGIN or INIT "Cannot invoke this object (REPR: Null; VMNull)"
Eer.
awwaiid, if its not obvious by now, s/pasers/phasers/
geekosaur sounds like That Bug yet again
awwaiid Xliff: :)
Xliff geekosaur: Is "That Bug" a recent occurence? I last rakudobrew'd two weeks ago. 01:08
geekosaur (there's a bug they've been playing whack-a-mole with where the compilation context isn't maintained properly in things like that)
it is not something recently introduced or recently fixed
Xliff kk
I will rakudobrew anyway
Just because I like the sound of my compilers, and the smell of burnt silicon in the morning. 01:09
geekosaur RT 129096 is the most recently reported instance of it (and has links to other instances)
Xliff should I RT this one?
geekosaur RT #129096 wakey wakey... 01:10
synopsebot6 Link: rt.perl.org/rt3//Public/Bug/Displa...?id=129096
jeek Does perl6 have decent bigint support, and if so, how's the performance?
awwaiid jeek: yes decent support. I don't know about performance.
Xliff jeek: BigInt is baked into Int
geekosaur probably, if there isn't one already that covers it which is why I dug out that bug
jeek I've been doing weird recreational math crap for this retired professor for funsies, wondering how well it'd run. Might have to give it a crack.
Rakudo still the VM of choice?
bioduds same thing
awwaiid jeek: it is. rakudobrew recommended way of getting it, or apt if you are on debian unstable 01:11
bioduds after rebuilding the slice and updating
awwaiid bioduds: same version of rakudo?
bioduds yes
i guess I should perhaps upgrade
awwaiid bioduds: what does `cat /etc/issue` say you are running? I suspect the other machine is debian unstable and this is not
bioduds let me see 01:12
awwaiid m: $n = 4567827273678726678376378263782263637383; $n++ ; say $n ; say $n.WHAT # <- jeek
camelia rakudo-moar 6a8278: OUTPUT«5===SORRY!5=== Error while compiling <tmp>␤Variable '$n' is not declared␤at <tmp>:1␤------> 3<BOL>7⏏5$n = 45678272736787266783763782637822636␤»
awwaiid m: my $n = 4567827273678726678376378263782263637383; $n++ ; say $n ; say $n.WHAT # <- jeek
camelia rakudo-moar 6a8278: OUTPUT«4567827273678726678376378263782263637384␤(Int)␤»
awwaiid hmm. maybe that wasn't big enough
bioduds it is ubuntu 14.04
LTS
awwaiid bioduds: and the one that works? 01:13
geekosaur that's testing, not unstable
bioduds should work by updating
skink jeek, We also have proper rationals :)
bioduds the one that works is ubuntu 16.04
geekosaur right, that would make sense
awwaiid bioduds: yep, there you go then. in fact, I'm not sure how ubuntu 16.04 has the version released this month
geekosaur you need to use rakudobrew with 14.04
and I don't know about 16.04 either 01:14
bioduds I believe 16.04 with simple apt install rakudo was enough
geekosaur you do *not* want to try to convert ubuntu or an ubuntu-derived system to debian sid
bioduds im upgrading 14.04 to try
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awwaiid is there like an update channel for rakudo in ubuntu that keeps it up to date? ubuntu 16.04 released in April shouldn't have August rakudo, right? 01:16
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geekosaur 16.04 is an LTS, I can't see it having a later rakudo 01:16
awwaiid in fact, looking at launchpad.net/ubuntu/+source/rakudo, I don't think you got your recent rakudo from apt, bioduds . what does `which rakudo` say?
geekosaur maybe the system has a PPA for someone's up to date rakudo build though
perlawhirl what's the best way to read a POD file... Specifically, how do I render the POD that comes with Text::CSV 01:17
bioduds which rakudo says nothing
geekosaur that was the wrong command
bioduds upgraded didnt work too
geekosaur which perl6 (or better, type perl6)
bioduds which perl6 /home/admin/.rakudobrew/bin/perl6 01:18
awwaiid ah
geekosaur there you go
skink Hm, interesting
awwaiid ok bioduds, on your machine running perl6 2016.08 you installed it using rakudobrew rather than apt
skink m: my Int $x = 10; for ^1000000 { $x / 2 }; say now - INIT now;
camelia rakudo-moar 6a8278: OUTPUT«WARNINGS for <tmp>:␤Useless use of "/" in expression "$x / 2" in sink context (line 1)␤2.5922761␤»
bioduds nope, just apt-get install rakudo 01:19
awwaiid geekosaur: I never used type to find something in the path. fancy
bioduds dont worry
geekosaur bioduds, apt-get does not install /home/admin/.rakudobrew/bin/perl6
that is rakudobrew
bioduds well
skink needs to upgrade
bioduds only thing I did was sudo apt-get install rakudo
but dont worry 01:20
i need to leave now
awwaiid bioduds: maybe someone else did it :)
bioduds thanks for assistance
:)
ill try late
later
awwaiid cool, have fun!
geekosaur awwaiid, the difference is in most shells (for bash, it depends on the version of bash) "which" shows what a *new* shell will see, whereas "type" always shows what the current shell thinks it knows 01:21
awwaiid ah
geekosaur (this may be incorrect if someone removed the thing after the shell last saw it)
awwaiid right. hence me randomly running 'rehash' when i stop trusting things.
Xliff m: my %a = { a => 1}; dd ::("%a); 01:27
camelia rakudo-moar 6a8278: OUTPUT«5===SORRY!5===␤Unable to parse expression in double quotes; couldn't find final '"' ␤at <tmp>:1␤------> 3my %a = { a => 1}; dd ::("%a);7⏏5<EOL>␤ expecting any of:␤ postfix␤Other potential difficulties:␤ Useless use of h…»
geekosaur even more fun, if it's not a shell builtin then it may be looking at your dotfiles --- meaning it shows what you will see the next time you log in, if you edited your dotfiles and didn't make the same changes to your running shell
Xliff m: my %a = { a => 1}; dd ::("%a");
camelia rakudo-moar 6a8278: OUTPUT«Potential difficulties:␤ Useless use of hash composer on right side of hash assignment; did you mean := instead?␤ at <tmp>:1␤ ------> 3my %a = { a => 1}7⏏5; dd ::("%a");␤Hash %a = {:a(1)}␤»
geekosaur loads of fun :/
Xliff m: my %a = ( a => 1 ); dd ::("%a"); 01:28
camelia rakudo-moar 6a8278: OUTPUT«Hash %a = {:a(1)}␤»
Xliff m: my %a = ( a => 1 ); dd ::("%a")<a>;
camelia rakudo-moar 6a8278: OUTPUT«Int %a = 1␤»
Xliff o_O
geekosaur I think you have exceeded the scope of dd, there 01:29
(it's a bit of a hack)
Xliff Well. No. 01:31
camelia returns what I would expect.
However I appear to have oversimplified my use case.
Because what I am really trying to do is not working. 01:32
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Xliff I'm working on github.com/Xliff/p6-color-names 01:33
And when trying to do "perl6 -Ilib --stagestats -e 'use Color::Names; dd ::("\%Color::Names::Cloford::Colors")<grey42>;'"
timotimo you might have to put the actual :: operator between the pieces of name
Xliff I get "Any %Colors = Any"
timotimo: You mean something like --> ::("\%Color)::("Names")::("Cloford")::("Colors") 01:35
(aaieee!
geekosaur m: package Foo { our $bar = 5; }; dd ::('$Foo::bar') 01:36
camelia rakudo-moar 6a8278: OUTPUT«Int $bar = 5␤»
timotimo well, after the first part i think you can leave out the (" and ")
because then it's no longer dynamic
Xliff Even this doesn't work --> "perl6 -Ilib --stagestats -e 'use Color::Names; dd %Color::Names::Cloford::Colors<grey40>;'"
timotimo hm
oh
you do realize you have that as "my %Colors"? 01:37
and thus it'd only be available from inside the package?
Xliff Changed to "our" like 10 minutes ago
timotimo OK
what do things like Color::.keys and such give you?
Xliff What I would expect. 01:38
A long sequence of color names.
timotimo every step of the way?
Xliff Every step of the way? "Color::.keys" gives me an error 01:39
timotimo i thought it gives you a long sequence of color names?
Xliff perl6 -Ilib --stagestats -e 'use Color::Names; dd %Color::.keys' --> "Variable '%Color' is not declared. Did you mean '&color'?"
perl6 -Ilib --stagestats -e 'use Color::Names; dd %Color::Names::Cloford::Colors.keys' --> Long Seq of color names 01:40
timotimo oh
if you put %Color in the first bit, that'll give you trouble if you have a long sequence of individual parts
Xliff Ahh 01:41
perl6 -Ilib --stagestats -e 'use Color::Names; dd Color::.keys' --> '("Names").Seq'
perl6 -Ilib --stagestats -e 'use Color::Names; dd Color::Names.keys' --> '()' 01:42
timotimo ok, so the % in front must have been the problem
you need Color::Names::.keys
you're not refering to a package otherwise
Xliff ("Cloford", "EXPORT").Seq 01:43
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Xliff Color::Names::Cloford::.keys --> ("\%Colors",).Seq 01:43
So ::("%Color::Names::Cloford::Colors) and ::("Color::Names::Cloford::%Colors) gives me the same results 01:45
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Xliff I can dd the entire hash, but I can't pull out an element 01:45
::("%Color::Names::Cloford::Colors)<grey42> and ::("Color::Names::Cloford::%Colors)<grey42> both return an Any 01:46
Errr... Assume terseness on my part and that everything int the last bit was properly quoted.
timotimo which part gives youwhat exactly
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Xliff timotimo: ?? - I don't understand what you are asking in that last bit. 01:47
perl6 -Ilib --stagestats -e 'use Color::Names; dd ::("Color::Names::Cloford::%Colors"){"grey42"}' --> "Any %Colors = Any" 01:48
But...
perl6 -Ilib --stagestats -e 'use Color::Names; dd ::("Color::Names::Cloford::%Colors")' --> will return a dump of the entire hash
*sigh* it is now Saturday night, and my willingness to be sober has evaporated. 01:50
Actually evaporated 30 minutes ago, but I'm out of beer. 01:51
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timotimo very weird 01:54
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Xliff timotimo, I thought so to! 02:00
You think I should RT?
timotimo i'ven't had any concentration left in my brain an hour ago
and it's too warm in my apartment to get any sleep
Xliff OK. It can wait until later when both of us have braincells in operation. :)
timotimo suffice it to say, i'm pretty sure there's a simple solution to our problem, i'm just not coming up with it from a distance 02:01
Xliff LOL
timotimo i haven't cloned the repository, for example. that seems like an obvious first step
Xliff I actually feel the same way about THIS one. It's the other one that's bothering me.
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kenedensency 哈囉 02:44
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grondilu m: my Int sub () { 13 } # I had no idea this was correct syntax! 02:45
camelia ( no output )
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grondilu m: my Int sub () { "Foo" }() 02:45
camelia rakudo-moar 6a8278: OUTPUT«Type check failed for return value; expected Int but got Str ("Foo")␤ in sub at <tmp> line 1␤ in block <unit> at <tmp> line 1␤␤»
grondilu coo 02:46
cool
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Ben_Goldberg m: my sub (--> Int) { 13 }().say; 02:50
camelia rakudo-moar 6a8278: OUTPUT«13␤»
Ben_Goldberg m: my sub (--> Int) { "Foo" }().say;
camelia rakudo-moar 6a8278: OUTPUT«Type check failed for return value; expected Int but got Str ("Foo")␤ in sub at <tmp> line 1␤ in block <unit> at <tmp> line 1␤␤»
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BenGoldberg grondilu, As you can see, perl6 offers more than one way to do it :) 02:51
m: my sub (--> Int) { "Foo" };
camelia ( no output )
BenGoldberg It would be nice though, if rakudo attempted, at compile time, to do some type checking, even before the sub got called. 02:53
geekosaur that kind of stuff is WIP 02:54
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dalek ateverable: fbf968b | MasterDuke17++ | / (2 files):
Change %additional_files to the more idiomatic %additional-files
 03:01
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grondilu how do you deal with typedefs in NativeCall? I mean for instance with "typedef int32 myIntType;". Do you just replace all occurence of myIntType with int32? 03:07
subset myIntType of int32 would not work, would itN 03:08
it?
Xliff constant with bind operator, I think 03:11
constant myIntType := int32
grondilu m: constant foo := int; sub (foo) { say "ok" }(23); 03:12
camelia rakudo-moar 6a8278: OUTPUT«ok␤»
grondilu is impressed
so you can define types as constants. Nice.
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Xliff (types as objects)++ 03:14
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b2gills m: constant foo := int; say foo.^name; # it is an alias 03:17
camelia rakudo-moar 6a8278: OUTPUT«int␤»
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grondilu so I'm trying to see if I'm not too dumb to use NativeCall. 03:36
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grondilu so I put this line in a test.c file: 03:36
int add(int a, int b) { return a + b; } 03:37
I compile it as such:
$ gcc -shared -c test.c -o libtest.so
and then I try:
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grondilu $ perl6 -e 'use NativeCall; sub add(int64, int64 --> int64) is 03:38
native<./test> {...}; say add(1, 2);'
and it fails
with:
Cannot locate native library '/home/grondilu/libtest.so': /home/grondilu/libtest.so: only ET_DYN and ET_EXEC can be loaded 03:39
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grondilu and I feel like that: 03:39
i1.kym-cdn.com/photos/images/facebo...65/b7e.jpg
oh wait, probably wrong gcc arguments 03:40
geekosaur grondilu, I think you need a bit more than that to make a shared object
my guess is it's an ordinary object file (.o) 03:41
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grondilu oh yeah 03:43
first:
$ gcc -c test.c
then:
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grondilu $ gcc -shared -o libtest.so test.o 03:43
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geekosaur first gcc needs -fPIC 03:44
(you can get away without it on 32-bit x86 linux, but you should not rely on this. notably, you *must* use PIC on 64-bit)
you also need -Wl,-soname,libtest.so.1 on the second one
which is the secret sauce that makes ld generate a shared object 03:45
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geekosaur (an ET_DYN, as your error message put it) 03:46
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Xliff_ FEH! 03:52
perl6 -Ilib --stagestats -e 'use Color::Names; dd ::("Color::Names::Cloford::%Colors"){"gray42"}' --> works
Xliff_ headdesks
timotimo: ^^
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Xliff_ Can someone tell me why this doesn't work? 03:58
github.com/Xliff/p6-color-names/bl...mes.pm#L34
grondilu m: package Foo {}; require Foo; 03:59
camelia rakudo-moar 6a8278: OUTPUT«Could not find Foo at line 0 in:␤ /home/camelia/.perl6␤ /home/camelia/rakudo-m-inst-1/share/perl6/site␤ /home/camelia/rakudo-m-inst-1/share/perl6/vendor␤ /home/camelia/rakudo-m-inst-1/share/perl6␤ CompUnit::Repository::AbsolutePath…»
Xliff_ Attempting to use Color::Names with that uncommented yields "Cannot invoke this object (REPR: Null; VMNull)". I have not yet been able to golf a smaller use case.
geekosaur pretty much any time you get that error from something in a phaser, you're hitting a version of the bug I pointed to earlier 04:00
where it's trying to use a context that the compiler didn't save as part of the phaser
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Xliff_ geekosaur, should I RT and point to the repo since I can't golf it down further? 04:16
geekosaur probably, yes 04:17
Xliff_ kk
geekosaur I expect it'll just get added to that list of null-SC tickets
until someone can figure out a better way to handle it that doesn't need special handling every time someone trips over this 04:18
Xliff_ HAH! 04:21
Golfed.
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geekosaur so, what's happening is, when the compiler generates bytecode, it does so in a thing called a serialization context. every module has its own SC, and phasers also get their own independent SCs because they run at different times than the module does. 04:24
Xliff_ Dammit. 04:25
geekosaur the SC for a phaser is thrown away after the code for the phaser is compiled. but if you do certain things in the phaser, the generated code wants to add things to the SC at runtime (imported symbols, in this case). but the compiler threw the SC away and its pointer is VMNull
Xliff_ Can someone reset this from perl5 to perl6?
rt.perl.org/Ticket/Display.html?id...1a40b383a8
geekosaur ...and I think you don't even want to add to that SC, you want to add to the module's SC, which is not something the compiler currently deals with very well if at all 04:26
so, this is a fairly hairy class of internal compiler bug
Xliff_ grrr... I can't change the details in my own ticket! :P 04:27
I can't even DELETE my ticket so I can re-create it properly. *sigh* 04:29
Ah well. I've commented. It's in there.
geekosaur: Ouch. I get it. Maybe selectively throw away the SC if certain op codes are present (ala "require" or "use") 04:31
But I guess that opens its own can of works.
s/works/worms/
geekosaur see the second part, it needs to serialize what it's compiling to the compile time SC but store the module's main SC as the runtime SC. and make sure the two are compatible.
jnthn could tell you more (and correct any errors in my understanding), but generally it's a tangled mess that conflates compile time and runtime in bad ways 04:32
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NeuralAnomaly New blog post: "Open Source Projects: When Ideas Meet Reality": perl6.party/post/Open-Source-Projec...et-Reality 04:57
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Xliff_ Hrm. 05:03
Koans?
05:04 mcmillhj left
Xliff_ The Java koans are weird. 05:06
I wonder if the extensive use of "__" is there to encourage people to figure out what is supposed to happen and replace it with the answer. 05:07
geekosaur: So, in the short term, you would recommend me trying to refactor this code without a phaser? 05:09
The only other way I think this would work is if I could add my behavior to the default EXPORT(). 05:10
geekosaur that's probably the easiest way that will get you something working
Xliff_ Otherwise I'd have to call an extra sub to init things, and that would be sub-optimal, but as you say, it would work. 05:11
geekosaur: Do you know anything about the EXPORT mechanics?
geekosaur not really, no 05:12
Xliff_ kk
Any suggestions as to who to ask?
jnthn perhaps (although he has enough on his plate!)
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timotimo i know a bit about the mechanics 05:15
what do you need to know?
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Xliff_ timotimo: I figured out my mistake earlier. As you suspected, it was something silly. 05:26
Re: EXPORT. Is there any way I can add custom behavior to the default? 05:27
Maybe redefine and use callsame()?
or would that be nextsame()
Please note that this would be a hack to work around the fact that I can't use INIT or BEGIN to do what I need. 05:28
timotimo i don't think there's a default EXPORT
just the difference between having no export and having any export?
Xliff_ Hrm.
OK. Lemme read up on it.
I will probably have to manually emulate. 05:29
timotimo the last time i looked a bit more into that whole thing was long before the whole CompUnit Repo stuff
Xliff_ Right.
timotimo i wonder if you find the EXPORT:: in the module even before "use"ing
Xliff_ perl6 -Ilib --stagestats -e 'use Color::Names; dd ::("Color::Names::Cloford::%Colors"){"gray42"}' --> works
^^ 05:30
/o\
timotimo did you use grey instead of gray the whole time? 05:32
Xliff_ Yes. 05:35
timotimo fantastic \o/
Xliff_ LOL
Well crap... require in EXPORT() gives the same error. 05:36
timotimo what error are you getting?
Xliff_ Cannot invoke this object (REPR: Null; VMNull)
timotimo what are you requiring in export for?
Xliff_ Well, I'm trying to abstract sub packages behind a main package. 05:37
I have Color::Names. I don't really want the user to have to worry about needing "Color::Names::Crayola" or "Color::Names::Cloford" 05:38
timotimo btw, since your packages all just include that single hash every time, i'm almost going to recommend loading the data from %*RESOURCES at EXPORT time
is it really important to you that you're not just loading all the other modules in your top-level module?
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Xliff_ *sigh* 05:38
I guess I could do that.
timotimo hehe
let me check out your code and have a look-see 05:39
Xliff_ Originally I wanted it to be selectable. So that the end user, if they looked at the nitty-gritty and didn't want collisions, could avoid it.
timotimo OK, so you were going for something like "use Color::Names 'crayons'"?
Xliff_ And also so people could submit PRs and have the new modules automatically picked up. 05:40
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Xliff_ timotimo: Yes. Exactly. 05:40
timotimo and it's not acceptable to use import tags?
Xliff_ or "use Color::Names" (semantically equivalent to "use Color::Names 'all')
timotimo oh wait what is this? 05:41
Xliff_ I'd rather not have all of that data cluttering up Color::Names.
timotimo what are you going through the repo chain like that for?
Xliff_ LOL
I could probably do that better with %*RESOURCES when I understand what it does.
That code finds the Color::Names directory and grabs all of the submodules. 05:42
Like I said. I didn't want the user to NEED to know all of the package names if they didn't want to worry about it.
I will admit this is probably overthinking.
timotimo i'm pretty sure that's not the way to do it :)
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Xliff_ Well I wouldn't have known it was not the way to do it until I tried doing it.... right?! =) 05:43
So I have avoided trying to grok %*RESOURCES because last time I looked, the docs were light on explanation. 05:44
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Xliff_ I could then move all that crap to EXPORT() or some such. 05:44
But hey... I now know how to find all of the include paths. 05:45
timotimo well, resources is just a section of the meta.json that you put files into that you later want to be able to grab out of the RESOURCES constant
Xliff_ OH!
Yeah. I haven't gotten to the META.json part, yet. 05:46
(maybe I should add that.
)
timotimo well, if you don't have a meta.json, things are going to be very difficult with regards to moduley stuff
Xliff_ I usually don't worry about that until I've finished coding.
timotimo if you don't have one, your files are probably going to be considered "just a bunch of random files"
Xliff_ OK. So "Start with META.json" -- got it. 05:47
timotimo hm, gtk-simple is not a good example for RESOURCES
Xliff_ LOL!~
I looked there!
timotimo where'd the "every perl6 module" thing go; i swear i had it cloned on my machine at one point 05:48
Xliff_ What? Ecosystem?
timotimo github.com/moritz/perl6-all-modules
no
every perl6 module we have in the ecosystem in one folder
Xliff_ Oh wow! 05:49
Good to know!
timotimo also, i should have said %?RESOURCES the whole time.
Xliff_ LOL! 05:51
Ooh... Zoffy has a Color class.
timotimo i was hoping i could find a cool example of export tags
Xliff_ I may want to add optional support for that.
So I guess I could try "require Color" CATCH if it doesn't exist? 05:52
timotimo m: try require Foo::Bar::Baz; say Foo::Bar::Baz::.defined
camelia rakudo-moar 6a8278: OUTPUT«Could not find symbol '&Baz'␤ in block <unit> at <tmp> line 1␤␤Actually thrown at:␤ in block <unit> at <tmp> line 1␤␤»
timotimo oh, right 05:53
m: try require Foo::Bar::Baz '&bazz'; say &bazz.defined
camelia rakudo-moar 6a8278: OUTPUT«False␤»
timotimo m: try require Test '&is'; say &is.defined
camelia rakudo-moar 6a8278: OUTPUT«False␤»
timotimo well, that's not how!
Xliff_ :(
timotimo m: try require Test '&is'; say is
camelia rakudo-moar 6a8278: OUTPUT«Cannot invoke this object (REPR: Uninstantiable; Callable)␤ in block <unit> at <tmp> line 1␤␤»
timotimo m: require Test '&is'; say is
camelia rakudo-moar 6a8278: OUTPUT«Cannot resolve caller is(...); none of these signatures match:␤ (Mu $got, Mu:U $expected, $desc = "")␤ (Mu $got, Mu:D $expected, $desc = "")␤ in block <unit> at <tmp> line 1␤␤»
timotimo m: try require Test '&is'; say is 1, 2, "whoa"; 05:54
camelia rakudo-moar 6a8278: OUTPUT«Cannot invoke this object (REPR: Uninstantiable; Callable)␤ in block <unit> at <tmp> line 1␤␤»
timotimo m: say (try require Test).perl;
camelia rakudo-moar 6a8278: OUTPUT«Test␤»
timotimo m: say (try require BazQuux).perl;
camelia rakudo-moar 6a8278: OUTPUT«Nil␤»
timotimo that's probably the easiest way to get at it
Xliff_ Cool!
timotimo m: say (try require BazQuux)::.keys;
camelia rakudo-moar 6a8278: OUTPUT«5===SORRY!5=== Error while compiling <tmp>␤Confused␤at <tmp>:1␤------> 3say (try require BazQuux):7⏏5:.keys;␤ expecting any of:␤ colon pair␤»
timotimo m: say (try require BazQuux).keys;
camelia rakudo-moar 6a8278: OUTPUT«()␤»
timotimo m: say (try require Test).keys;
camelia rakudo-moar 6a8278: OUTPUT«()␤»
timotimo that's what i meant to copy-paste
hm, but that's not it 05:55
m: say (try require Test).WHAT.perl;
camelia rakudo-moar 6a8278: OUTPUT«Test␤»
timotimo ... right
i haven't done enough with modules and packages at all
Xliff_ m: say (try require BazQuux).WHAT.perl
camelia rakudo-moar 6a8278: OUTPUT«Nil␤»
timotimo m: say (try require Test); say Test::.keys;
camelia rakudo-moar 6a8278: OUTPUT«5===SORRY!5=== Error while compiling <tmp>␤Undeclared name:␤ Test used at line 1␤␤»
timotimo m: say (try require Test); say GLOBALish::Test::.keys;
camelia rakudo-moar 6a8278: OUTPUT«(Test)␤Could not find symbol '&Test'␤ in block <unit> at <tmp> line 1␤␤Actually thrown at:␤ in block <unit> at <tmp> line 1␤␤»
timotimo m: say (try require Test); say GLOBAL::Test::.keys;
camelia rakudo-moar 6a8278: OUTPUT«(Test)␤(&todo_output EXPORT &failure_output &output)␤»
timotimo that's closer to it
m: say (try require Test); say GLOBAL::Test::EXPORT::.keys;
camelia rakudo-moar 6a8278: OUTPUT«(Test)␤(DEFAULT ALL)␤»
timotimo m: say (try require Test); say GLOBAL::Test::EXPORT::DEFAULT::.keys; 05:56
camelia rakudo-moar 6a8278: OUTPUT«(Test)␤(&isnt &plan &pass &cmp-ok &flunk &does-ok &subtest &unlike &like &use-ok &todo &skip-rest &eval-dies-ok &is-deeply &throws-like &ok &is &diag &done-testing &bail-out &is-approx &skip &dies-ok &lives-ok &eval-lives-ok &MONKEY-SEE-NO-EVAL &nok &is_…»
timotimo but relying on require putting stuff into GLOBAL is not going to stay around, i believe
Xliff_ I like the .WHAT.perl version
timotimo pssh, i'm sleep-deprived
nine is working on making imports properly lexical
Xliff_ Simple and probably more correct than checking EXPORT.
But this has been helpful, timotimo++ 05:57
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timotimo if anything, you probably got a little laugh out of me 05:59
Xliff_ Nah.
Seriously... nothing could be worse than "grey" vs "gray"
:p
timotimo :) 06:00
Xliff_ m: say (try require BazQuux).defined
camelia rakudo-moar 6a8278: OUTPUT«False␤»
Xliff_ m: say (try require Test).defined
camelia rakudo-moar 6a8278: OUTPUT«False␤»
timotimo i have cravings for things but it's sunday so grocery shops won't open :(
Xliff_ Ouch.
Craving for what?
And damn... delivery here is done for the night. 2am
timotimo strawberry milkshake ... or something like that 06:01
all i ever drink at home is tap water ... i'm mostly completely fine with that, but sometimes it ain't enough
Xliff_ HO! No! Some places are open until 4am for Sat.
\o/
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Xliff_ But no milkshakes. :( 06:02
Dammit! Missing 4¢ from delivery minimum! 06:04
Xliff_ shakes fist.
timotimo milkshake fist?
Xliff_ Stop it! 06:05
Darn it... no milk.
timotimo i love it when i'm just randomly clicking through pages of a tumblr and suddenly the theme is completely differend and at the very beginning there's just some random code leaking out
Xliff_ I have everything else.
06:05 TEttinger left
Xliff_ avoids social media. 06:05
What random tumblr did you find with code? 06:06
timotimo oh, no, that's actual code that's supposed to be configuring the theme
it's just spilling out at the seams, because something somewhere in the pipeline sprung a leak
Xliff_ I don't know why, but I equate "social media" as the internet equivalent of "reality tv"
Oh, LOL!
OK. So I doubled my order of chips. Delivery inbound. Buffalo wings... MMMMMMMm 06:07
timotimo www.youtube.com/watch?v=p-R1O7FN3yI - it started out with this cute loopable video and it went on from there with pretty/stimulating/satisfying gifs and vines and such
Xliff_ timotimo, will %?RESOURCES work from module source tree (ie not installed) 06:08
timotimo rakudo will pick up META.json in not installed modules, i believe
i don't remember the exact way it works
Xliff_ Cool.
rakudo++
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Xliff_ m: say (try require Test).WHAT.perl 06:09
camelia rakudo-moar 6a8278: OUTPUT«Test␤»
timotimo i hope it actually does and i'm not just imagining things again :D
Xliff_ m: say (try require Test).WHAT
camelia rakudo-moar 6a8278: OUTPUT«(Test)␤»
Xliff_ m: say (try require Test)
camelia rakudo-moar 6a8278: OUTPUT«(Test)␤»
Xliff_ m: say (try require Test).defined
camelia rakudo-moar 6a8278: OUTPUT«False␤»
Xliff_ Oh. Type object.
timotimo needs sleep... BADLY!
=) 06:10
Or is that "food".... or is that both "sleep" and "food"?
Or should we just settle with "milkshake"??
timotimo i need sloop
Xliff_ Because I wouldn't mind all three right now.
sloop.defined --> False 06:11
timotimo at this point, the plural of sloop would just be pure luxury
sloop is the singular of sleep
just like shoop is the singular of sheep
and foot is the singular of feet
Xliff_ I disbeliefe.
s/fe/ve/
It sounds need, though.
timotimo doesn't make it any less truo!
... true!
Xliff_ ROFL
If it's dark will you be eaten by a gruo? 06:12
timotimo it's not dark. it's 8am. sun's already up.
Xliff_ Do you postdate that reference?
en.wikipedia.org/wiki/Grue_(monster) 06:13
timotimo hm?
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timotimo oh. no, i've seen grues referenced often enough 06:13
Xliff_ Ah.
timotimo i haven't played the original that had it. some text adventure i believe?
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Xliff_ Zork 06:13
And I have.
timotimo ah. *the* text adventure
Xliff_ When it was released!
And now I have dated myself. :P 06:14
timotimo Zork McCorken and Allen the MorndBornder, right?
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Xliff_ en.wikipedia.org/wiki/Zork 06:14
timotimo i know, i know :)
Xliff_ I don't know where you got "McCorken" and "MorndBornder" though. 06:15
timotimo Zak McKraken and the Alien Mindbenders
Xliff_ Ah!
Yeah. I knew that!
Now I need to think of something new for SVG::Plot. 06:16
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timotimo ah, the color names thing was for svg::plot because svg supports these color names natively? 06:21
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Xliff_ No 06:30
timotimo no? 06:31
Xliff_ Came from working on SVG::Plot examples and me having to look up color charts on the web to get the hex codes.
timotimo oh, ok!
are the plots benchable outputs still unreadable on gist because of the transparent background?
oh, wait ... that's probably only on my laptop because i have the "dark github" style on there!
Xliff_ LOL
I use that too. 06:32
I didn't know there were benchable outputs.
06:32 skids left
timotimo oh? 06:33
.seen benchable
yoleaux I saw benchable 11 Aug 2016 12:25Z in #perl6: <benchable> unmatched}: ¦«sleep»:Cannot find this revision
timotimo gist.github.com/Whateverable/ee017...332eaefd62
i'm not sure why it says "is invalid so it cannot be displayed" 06:34
gist.github.com/Whateverable/5df6e...2e37cc5df6
there we go, we have an example
Xliff_ That worked.
Hum.... how was that graph generated? 06:35
Is that something benchable does?
timotimo yeah, i believe it uses SVG::Plot 06:36
Xliff_ Ah.... plots the results of "releases my @a = (^15).combinations(3); my $a = @a.elems"
timotimo no, it plots the timings of that code
Xliff_ Oh.. for each release.
timotimo the results from that code would ideally be the same no matter what release you use
Xliff_ Well... if rakudo was stable and not in the middle of optimizations. 06:37
timotimo optimizations should not change the amount of combinations of 3 numbers between 0 and 14 you can get 06:38
Xliff_ Well.. optional support for Color object added. I think it will break the other methods, though.
Actually no... it's fine.
Now I just need to get all of this EXPORT stuff sorted. 06:39
I really want selective loading.... but ...
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Xliff_ Next stop... META.json 06:40
...After reading more Stross... and eating more Buffalo wings.... and sleep... and....
timotimo if you read the color data in your EXPORT from %?RESOURCES, you wouldn't even need submodules any more
and it'll be pre-compiled for you, too
Xliff_ Eh... how would I do that? 06:41
Put the color data in META.json?!?
timotimo no, of course not
Xliff_ <- conf00sled
timotimo the meta.json just lists the files that contain your easy-to-parse format for these color names to color values
then EXPORT will check what colors the user wanted, open these resources files and parse, then give back enums or hashes or what-have-you 06:42
Xliff_ Ah! But the parsing!
One of the design goals was to avoid parsing.
Hence the submodules.
timotimo if it's just 4 space-separated strings per line, is that really "parsing"? :)
Xliff_ I may not be grokking what you are trying to say though.
4? 06:43
color hex r g b
timotimo ok, 5. whatever :)
Xliff_ throw X::OffByOne 06:44
It's a common coder ailment. ;)
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timotimo i didn't realize you had a hex representation in there 06:44
i would've just generated it from the color values, but *shrug*
Xliff_ Pre optimization.
timotimo also, as long as our color stuff doesn't actually support better color spaces and profiles, we won't be taken seriously.
Xliff_ I actually take the hex and generate the r g b when I create the submodules. 06:45
Look in gen/
timotimo not everything is sRGB, you know
Xliff_ Yes. Which is why I quickly added support for Color object.
timotimo :)
timotimo ran out of serious
Xliff_ ran out of serious hours ago. 06:46
About the time when I ran out of beer.
Then I bought more beer.
timotimo we have a serious shortage. of serious. for serious.
Xliff_ (why is my glass empty?!)
SRSLY!!!
timotimo i don't like beer. but i would have liked to share a few bottles of pear cider with my friend tonight
Xliff_ I also-s got rum to go with my coke... 06:47
Or is that coke to go with my rum.
(why is my glass empty again!??)
timotimo i'll awayfrom my keyboard for a little bit 06:49
06:50 ufobat left
Xliff_ ok 06:50
I think I will too.
Wings... Stross... RUM!
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stmuk_ www.youtube.com/watch?v=LfrlqxzeSSE 07:46
that seems to have all 10 hrs of the main room 07:47
of YAPC
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Xliff_ GAH! 08:35
"You cannot create an instance of this type (Color)"
resulted from
::("Color").new(:hex($c<hex>))
But this works
timotimo is it just a package? 08:36
Xliff_ perl6 -e 'require Color; dd ::("Color").new(:hex("#ffffff"))'
No. Color is an object.
Hm....ah crap. Scope.
timotimo well, would you look at that
masak m: class Color { has $.hex }; say Color.new(:hex<#ffffff>) 08:37
camelia rakudo-moar 6a8278: OUTPUT«Color.new(hex => "#ffffff")␤»
masak works here.
m: class Color { has $.hex }; say ::("Color").new(:hex<#ffffff>)
camelia rakudo-moar 6a8278: OUTPUT«Color.new(hex => "#ffffff")␤»
Xliff_ I think this is messing things:
if $obj.defined && !(try require ::("Color")).WHAT.perl.defined {
die "Color module cannot be found.";
} else {
require ::("Color");
}
masak try without the `else`, perhaps? 08:38
also, I don't know offhand if `require` does any importing by default
Xliff_ The else is new.
I would think the try would do it.
But it does not.'
timotimo require will put your stuff into the lexical scope it's in
that's also why you have to "try require" and not "try { require }"
unless you use the return value of the try 08:39
rather than relying on the thing being available in your scopes
masak oh, right. you're doing `require` twice
Xliff_ Right, but I get that error with and without the else.
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timotimo if you're gonna die anyway, why not put require ::("Color") further on the outside and check if the requirement was met, and die otherwise? 08:40
masak (and, in general, be very suspicious of `try`)
timotimo do, with, or for. there is no try. 08:41
masak `try` is the "oh look, I can put my hand on this stovetop -- it makes smoke but it doesn't hurt!" of error handling
Xliff_ Are you effing kidding me!??!?
masak no.
Xliff_ require Color if $colorSupport; 08:42
==> Cannot invoke this object (REPR: Null; VMNull)
Xliff_ pulls hair.
masak Xliff_: if you can golf that, we might have something to rakudobug.
Xliff_ masak: Already done.
rt.perl.org/Ticket/Display.html?id=129109 08:43
masak reproduced locally.
$ perl6 -Ilib -e'my $colorSupport = True; require Color if $colorSupport; say "hi"'
===SORRY!===
Cannot invoke this object (REPR: Null; VMNull)
Xliff_ I'm now thinking it has nothing to do with phasers and everything to do with programatic require.
masak adds the case with the `if` statements to that ticket 08:44
Xliff_ masak++
That thing has been biting me all day.
(and my day should have long been over, by now) 08:45
masak seems eminently workaroundable, luckily.
Xliff_ However wings, Stross, and perl6 have been keeping me awake.
Despite beer, rum and coke!
masak: Workaround, you say? Do tell! ;) 08:46
masak just a feeling.
Xliff_ is now playing: Eschaton - Imaginary Skies (Nemanoe Remix)
Xliff_ bops
masak or put it like this:
Woodi hi today :) 08:47
Xliff_ \o Woodi
masak the fact that `require Color` works but `require Color if $something` doesn't means that you can use the former and not hit the error.
hi Woodi
Woodi: you're mistaken, though: it's already tomorrow.
today was yesterday :P
Woodi I'm trying zef and it wants put things into /usr/share... --to opotions don't want to put things into /usr/me/perl6... how to use zef ? 08:48
Xliff_ masak: "require Color; ::("Color").new(:hex("#ffffff"))" --> You cannot create an instance of this type (Color) 08:49
Woodi masak: I can agree with that cruel statement - today WAS yesterday :)
Xliff_ Woodi: But does that mean that today is really tomorrow?
Woodi Xliff_: not sure about tomorow :)
Xliff_ =) 08:50
Woodi *tomorrow even
masak .oO( jam to-morrow and jam yesterday -- but never jam today ) 08:51
timotimo Xliff_: do you remember the ::EXPORT::DEFAULT dance?
how about you try to require Color and then ::Color::EXPORT::DEFAULT::Color.new?
masak maybe combined with setting `constant C = ::Color::EXPORT::DEFAULT::Color;`. 08:52
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Xliff_ ::Color doesn't work. 08:57
GLOBAL::Color::EXPORT::DEFAULT doesn't work because Color is a class. 09:00
09:02 mcmillhj left
Xliff_ s$ perl6 -Ilib -e 'require Color; dd GLOBAL::Color::.keys' 09:02
("ValidRGB",).Seq
There should be something that can reference all Class objects.
09:02 TEttinger left
Xliff_ s$ perl6 -Ilib -e 'require Color; dd GLOBAL::.keys' 09:02
Oops 09:03
m: dd GLOBAL::.keys'
camelia rakudo-moar 6a8278: OUTPUT«5===SORRY!5=== Error while compiling <tmp>␤Two terms in a row␤at <tmp>:1␤------> 3dd GLOBAL::.keys7⏏5'␤ expecting any of:␤ infix␤ infix stopper␤ postfix␤ statement end␤ statement modifier␤…»
Xliff_ m: dd GLOBAL::.keys;'
camelia rakudo-moar 6a8278: OUTPUT«5===SORRY!5=== Error while compiling <tmp>␤Unable to parse expression in single quotes; couldn't find final "'" ␤at <tmp>:1␤------> 3dd GLOBAL::.keys;'7⏏5<EOL>␤ expecting any of:␤ single quotes␤ term␤»
Xliff_ m: dd GLOBAL::.keys;
camelia rakudo-moar 6a8278: OUTPUT«().Seq␤»
Xliff_ Wheee!
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masak so it doesn't do any import 09:06
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Xliff_ Not for classes. 09:09
I thought Classes didn't need import.
masak you're saying that it imports some things, but not classes?
Xliff_ That's what it looks like. 09:10
masak Xliff_: if you do `use`, then classes are definitely imported by default.
Xliff_: I don't think I would expect the same with a bare `require`.
Xliff_ Now if I "use" it works. However "use" in a conditional sense is lexical.
masak yes, because `use` is BEGIN-time.
Xliff_ Right. We are saying the same thing.
So how can I import a class given an already executed require()? 09:11
Or access said class globally?
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masak reading S11, it seems `require Color <Color>;` might do the trick. 09:21
Xliff_ Testing 09:23
"Trying to import from 'Color', but the following symbols are missing: Color" 09:25
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nine Wow...just woke up after ~ 12 hours of sleep 09:35
masak nine: is this in any way connected to YAPC::Europe? :) 09:38
(which I hear was especially good this year, by the way)
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nine masak: it does seem likely ;) 09:40
Nevertheless I'm looking forward to the Alpine Perl Workshop :) 09:42
timotimo xl, i got a milkshake 10:00
smls We've exceeded 1400 open RT tickets... :S 10:01
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timotimo goo.gl/photos/FPqcTz5ceFjMi6Lg7 10:04
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timotimo imagine we didnt have enough users so our bug tracker was empty all the time 10:10
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lambd0x Hi everyone! 10:21
> my @a = <1 2 3 4>; sub test($num, *@tmp) { $num.say; }; say test(@a); 10:25
m: my @a = <1 2 3 4>; sub test($num, *@tmp) { $num.say; }; say test(@a);
camelia rakudo-moar 6a8278: OUTPUT«[1 2 3 4]␤True␤»
lambd0x I wanted to know whether its possible to take a num from an array in test using random order. Is it? 10:27
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titsuki m: my @a = <1 2 3 4>; sub test($num, *@tmp) { $num.say; @tmp.say; }; test(|@a.pick: *); 10:36
camelia rakudo-moar 6a8278: OUTPUT«3␤[4 2 1]␤»
titsuki m: my @a = <1 2 3 4>; sub test($num, *@tmp) { $num.say; @tmp.say; }; test(|@a.pick: *); 10:37
camelia rakudo-moar 6a8278: OUTPUT«2␤[1 3 4]␤»
titsuki ambd0x: Is my answer sufficient for you ? 10:39
lambd0x titsuki: It's perfect, I just am trying to undestand the meaning of '|' in front of @a.pick and ': *' 10:41
*understand.
titsuki: could you explain it to me, please?
titsuki | means flatten
m: sub test($num, *@temp){ say $num; }; test(1,2,3); 10:42
camelia rakudo-moar 6a8278: OUTPUT«1␤»
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titsuki m: sub test($num, *@temp){ say $num; }; test([1,2,3]); 10:43
camelia rakudo-moar 6a8278: OUTPUT«[1 2 3]␤»
lambd0x titsuki: Ok, and the second means: pick every el. of the array?
titsuki yes 10:44
lambd0x titsuki: awesome. Thank you :)
titsuki :)
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smls Is `sub EXPORT` implemented in Rakudo? 10:59
I can't seem to get it to work... 11:00
It says "no EXPORT sub, but you provided positional argument in the 'use' statement" even though I did declare an EXPORT sub in the `use`d module. 11:02
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cygx o/ 11:08
smls: you have to declare EXPORT in the mainline, ie outside any package/module/class declaration 11:09
smls cygx: Thanks! 11:12
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MasterDuke Xliff_: there are a couple things that i can think of to add to SVG::Plot (if you're looking for ideas) 11:29
yoleaux 27 Aug 2016 13:55Z <tbrowder> MasterDuke: thanks!
MasterDuke setting a background color, having the line plot also show ticks at the data points, option to put text at the data points, ability to modify the rotation of x/y labels (and customize them more in general), option to hover over the points and see the x/y coordinates 11:30
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Xliff_ \o/ 11:40
MasterDuke++
MasterDuke: Good ideas. Can you open an issue on the github page so I don't forget? 11:41
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MasterDuke sure 11:41
Xliff_ Thanks.
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Xliff_ timotimo++ # Milkshake 11:42
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Xliff_ Can I just say that Python SUCKS! 11:42
Really. I am trying to get something working that used to work and I am running into so many silly issues.
Of course, I am a Python n00b, so that probably has something to do with it.
mst everything is terrible 11:46
MasterDuke Xliff_: i just created a bunch of issues in SVG::Plot 11:49
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Xliff_ Thanks, MD 11:51
mst: You have no idea.
PyQt5.... srsly?!?
Pain. In. The. Ass. 11:52
mst for i in "foo", "bar":
remove "bar" from the list and try not to break your code
Xliff_ mst: indenting....
mst Xliff_: nope 11:53
for i in "foo",:
Xliff_ ┌∩┐(ಠ_ಠ)┌∩┐
mst will go once round the loop with i set to "foo"
for i in "foo":
will iterate three times with i as "f", "o", "o"
MANDATORY TRAILING COMMAS
Xliff_ ｢(ﾟﾍﾟ) 11:54
Dude... when I pull out the emoticons...
RUN!
(why is my glass empty again... and is that daylight?!?)
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Xliff_ is a vampire. The sun is out. Color him with "Why am I on fire White" 11:55
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timotimo i liked pyqt, but that was when 4 was ... not out yet? 12:01
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Xliff_ Thing takes longer to compile than the Linux kernel! 12:13
MasterDuke i liked PerlQT, but i think that was back in the QT3 days
mst likes p3rl.org/Tkx.pm 12:14
er
mst likes p3rl.org/Tkx
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Xliff_ Then again... I think this is a uniproc Make 12:15
s/Make/Makefile/ 12:16
It's been a long time since I've run into one of those.
Xliff_ breaks and runs "make -j8" instead. 12:17
Ahh... much better.
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Xliff_ And after all that, I still get a type error. *sigh* 12:21
So much for continuing my work on calibre.
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Xliff_ Well... committed my changes. I will have to circle back another time. 12:26
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dogbert17 experimentally drops pin ... 12:56
looks as if the second code example is missing a few @'s docs.perl6.org/language/control#gather/take 12:59
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dalek c: 288dcdb | (Jan-Olof Hendig)++ | doc/Language/control.pod6:
Fixed broken code example
 13:04
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Xliff_ MasterDuke: SVG::Plots now support background color. See examples/bubbles.pl in the latest commit. 13:06
s/Plots/Plot/
timotimo my fan is now unbearably meepy 13:07
but at least i have a laptop again
13:07 MasterDuke left
timotimo however 13:08
now both pads rather than just the one are connected to the heatsink apparatus with thermal paste
nine I wonder if the best way to have a Perl program with a Qt UI would actually be to build the Qt UI in Qt Designer (or maybe KDE Develop) and have it access the Perl functionality via a network socket and a lot of JSON 13:09
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timotimo holy fuck, i can watch a stream on twitch and instead of 79 degC on both measurement points i get just 55 degC 13:22
tbrowder ref modules: Can anyone point to a complete description of the META json format for a module source dir? I particularly need to see how to handle binary dependencies that require downloading, building, and installing. I see how it's done in the travis file, but I assume neither zef nor panda use that. 13:25
timotimo tbrowder: GTK::Simple has something. you'd find it in the Build.pm 13:27
Build.pm is where you put code that you want to run at module installation time
mst surely external non-perl6 deps are out of scope for that 13:28
I mean for META
timotimo at the moment, yes
we might want to at some point be able to declare we want something
though it'll not be possible to have it actually be picked up by any package managers
that way lies cthulhu's resurrection
mst perl5 has barely started experimenting with that via CPAN::Plugin::Sysdeps 13:29
timotimo resurrection may be the wrong word. i don't think cthulhu is actually dead?
mst only sleeping
I would say "yes, in theory, it would be nice to do that, but I would be extremely suspicious of anybody who claims they have a solution to the problem"
timotimo yeah
sounds about right
mst (actually, I think I *do* have a solution to the problem, but I'm very suspicious of myself there ;) 13:30
timotimo we could build our own package manager and repositories for libraries!
fork portage and just re-write it in perl6
a line-by-line port from python
from python and bash*
lambd0x guys a quite doubt: junctions evals. expressions eagerly while the 'and, &&' operators do it in a lazy way?
timotimo and, &&, ... are what you call "short-circuiting" 13:31
they'll actually have a control-flow implication to them
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timotimo the junction operators aren't special in any way, so they don't get to do short-circuiting 13:32
lambd0x ok.
timotimo but when collapsing a junction to a single bool value (via "so"/"not" or "if"/"unless" and friends) it won't go through more values than it needs to
lambd0x I'm asking because I have two exprs to be avaluated as true and one of them is an array index that if goes to -1 shall return false. It works with '&&, and' but fail with 'all' so that's the reason? 13:34
tbrowder timotimo: thanks!
timotimo that's the reason, yes
lambd0x timotimo: Would there be another way to perform this comparison in a shorter way? 13:35
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timotimo m: my @a; say @a[-1] // False 13:39
camelia rakudo-moar d43ea0: OUTPUT«5===SORRY!5=== Error while compiling <tmp>␤Unsupported use of a negative -1 subscript to index from the end; in Perl 6 please use a function such as *-1␤at <tmp>:1␤------> 3my @a; say @a[-1]7⏏5 // False␤»
timotimo m: my @a; (try say @a[-1]) // False
camelia rakudo-moar d43ea0: OUTPUT«5===SORRY!5=== Error while compiling <tmp>␤Unsupported use of a negative -1 subscript to index from the end; in Perl 6 please use a function such as *-1␤at <tmp>:1␤------> 3my @a; (try say @a[-1]7⏏5) // False␤»
timotimo ah, compile-time error, of course 13:40
m: my $index = -1; my @a; (try say @a[$index]) // False
camelia ( no output )
timotimo m: my $index = -1; my @a; say @a[$index] // False
camelia rakudo-moar d43ea0: OUTPUT«False␤»
timotimo m: my $index = -1; my @a; say (@a[$index] // False)
camelia rakudo-moar d43ea0: OUTPUT«False␤»
timotimo that's how i'd do it
Xliff_ "//" ?? 13:43
dalek c: b72a2b3 | (Jan-Olof Hendig)++ | doc/Language/control.pod6:
day-of-week returns values in the range 1..7, not 0..6
 13:44
lambd0x timotimo: thanks you
Xliff_ Is that something similar to perl5 "a || b"?
tadzik it's similar to perl5's "a // b" :)
Xliff_ OK. So what is "//"/
Er.... s/\/$/?/ 13:45
tadzik if a is defined, it evals to a, otherwise to b
Xliff_ Ah. I always thought "||" did that.
tadzik it's close but not the same
Xliff_ "||" is boolean and "//" is defined?
tadzik correct
Xliff_ kk 13:46
tadzik kinda :)
Xliff_ (dammit)
tadzik evalbot where art thou
Xliff_ Ok. So "correct enough for government work?"
tadzik haha
Xliff_ :)
tadzik well, it doesn't mean "defined" :) 13:47
Xliff_ (my glass is empty again...)
tadzik ||: $a ? $a : $b
//: defined $a ? $a : $b
my $a = 0; my $b = 5; say $a || $b => 5
Xliff_ Wouldn't that be "//: $a.defined ?? $a !! $b" 8-)
tadzik in perl6, yes 13:48
:)
Xliff_ hehe
tadzik consider default parameters to subs
if you did $arg ||= 5, you'd overwrite the passed argument if it's 0
Xliff_ Seriously, I may never go back to the default trinary again.
tadzik so //= 5 is a better fit
Xliff_ It took me so long to switch, though.
I dread going back to Java or... (shudder) ... C++ 13:49
tadzik hehe
I like going back to C
Xliff_ Feh.
tadzik it feels like taking your shirt of and chopping wood with your bare hands
masak Xliff_: in my experience, going back is rough the first few times
tadzik C++ is similar, except you mutilate yourself first and then cover your face with the blood of infants
Xliff_ It's not that I can't do it. It's that I'd rather not!
masak Xliff_: going back and *forth* is even rougher
Xliff_ masak++ 13:50
masak Xliff_: I can't tell you how many times I've written things like `a ? b ! c` or `a ?? b :: c`
Xliff_ Your head becomes a racketball court.
LOL!
masak Xliff_: ...but the good news is, it passes. at least it did for me.
brain learns to compartmentalize, and choose the right one in the right environment.
Xliff_ Yeah. That's assuming you play enough games of racketball. The "walls" get callouses. 13:51
OK. You said it better than I did.
masak gosh darnit, now I'm *staring* at `a ? b ! c` and my brain is going "but that's correct... isn't it?"
tadzik :D
Xliff_ Hahaha!
Sheesh. On a related topic, you know how long it took me to grok the difference between "x" and "xx"? 13:52
masak Xliff_: even more important is to grok why it has to be two ops in Perl 6.
Xliff_ That's what I mean.
Was about a week and it was like a switch flipping. 13:53
tadzik I never remember which one's which, x and xx, always have to try :P
Xliff_ O I C goes brain
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tadzik does anyone have a good mnemonic? 13:53
Xliff_ x == Str, xx == Array
masak tadzik: oh? I have no problem at all distinguishing them. I wonder why.
Xliff_ Or if you really wanna be pedantic...
x ~~ Str, xx ~~ Array 13:54
cygx
.oO( number of 'x' == number of 'r' in typename)
masak cygx++
tadzik: there's your mnemonic
tailgate I guess I remember that xx looks more like an array than x
tadzik masak : well, I know what they mean, I just don't remember which one's for what
masak .oO( Listrr )
tadzik oh
dalek c: 8f50e70 | (Armand Halbert)++ | doc/Type/Range.pod6:
Added method sum() to Range pod
c: 5270805 | RabidGravy++ | doc/Type/Range.pod6:
Merge pull request #863 from ahalbert/861

Added method sum() to Range pod
Xliff_ cygx++ # Wow! That really works. Took me a bit.
tadzik if there's more than one x, then it's a collection
ahahah 13:55
Xliff_ I like mine better though.
tadzik it took me even longer
tailgate then again, nobody's ever accused perl of having too few operators
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Xliff_ Oh yeah!! 13:56
Someone mentioned something about QT
masak tadzik: though logically, `xx` ought to be a Bool-based operator, considering all the prior art with && || ^^ ?? !! 13:57
Xliff_ <nine> I wonder if the best way to have a Perl program with a Qt UI would actually be to build the Qt UI in Qt Designer (or maybe KDE Develop) and have it access the Perl functionality via a network socket and a lot of JSON
masak :P
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Xliff_ nine: How would that even work? 13:57
cygx masak: but then, x should return a junction
Xliff_ Wouldn't it be better to write NativeCall bindings and write a pyuic equivalent in P6? 13:58
mst doubtful 13:59
neither rakudo nor qt have pluggable event loops AFAIK
Xliff_ nine: I admit that there is a possibility that your idea would be workable in an order of magnitude faster than what I am suggesting.
mst so separate processes strikes me as likely to be less annoying
otherwise they'll fight over e.g. signal handling
Xliff_ eep!
14:00 nadim left
mst it's not hard to imagine how much fun that wouldn't be :) 14:00
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Xliff_ I was hoping libqt would handle that and all we'd need is binding. 14:00
So much for that hope.
mst eh?
tadzik masak: that'd fit, yeah
mst point is, rakduo has a (UV) event loop, qt has its own event loop
everything gets complicated at that point 14:01
Xliff_ mst: and QT's event loop isn't exposed by the QT API?
tadzik masak: also, two-letter operators are for Strings: eq, ne, lt, gt... xx?
Xliff_ tadzik: stop trying to confuse the issue!!!
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tadzik xxxD 14:01
Xliff_ ROFLMAO
tadzik did you notice the joke, I put xxx there to get more confusion on board 14:02
Xliff_ That's what the added "MAO" was for.
tadzik much appreciated 14:03
Xliff_ ====)
tadzik xxD is when you need to get more than one person laughing, while xD is just one person laughing longer
Xliff_ And this is a fist bump.... (๑˃̵ᴗ˂̵)و 14:04
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mst Xliff_: that's not my point 14:04
tadzik ooh, that's going into ~/fatfaces, I didn't have that 14:05
mst Xliff_: my point is that a two-process model would allow you to use all of rakudo's native event stuff for the perl6 code
Xliff_ (tadzik++)++
mst: Oooooo... and hence the not fun
mst: You must pardon me. The emoticons have come out, my glass is empty, I've been up all night, and I've had to deal with fecking Python. 14:06
tadzik ooh, sweet karma for memeing
Xliff_ mst: So "I'm punchy" is putting it mildly. Also slow on the uptake.
Did I mention slow?
masak on the uptake, yes. 14:08
Xliff_ o(^▽^)o
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Xliff_ mcmillhj is having a rough time of it. 14:09
titsuki m: loop (my $foo;0;){}; loop (my $foo;0;){} # is this a bug ? 14:11
camelia rakudo-moar d43ea0: OUTPUT«Potential difficulties:␤ Redeclaration of symbol $foo␤ at <tmp>:1␤ ------> 3loop (my $foo;0;){}; loop (my $foo7⏏5;0;){} # is this a bug ?␤»
nine Xliff_: the trouble with Qt bindings has historically been that maintaining them actually seems to be quite a lot of work and onebody seemed to stick to it. 14:14
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Xliff_ nine: onebody? 14:19
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lambd0x bpaste.net/show/6096c9c29b15 Is there a way to optimize this code, removing those two basic opers. atributed to two vars and directly doing it? I made some attempts but found no way so far... 14:31
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timotimo mixed tabs and spaces? :( 14:35
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lambd0x timotimo: Sorry the my code lost identation when pasting: bpaste.net/show/27109db27469 14:39
*sorry ... 14:40
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nine Xliff_: also, since nowadays Qt UIs are usually written with Qt Quick (and it's Javascript language), there's already good infrastructure for separating front- and backend. 14:48
Xliff_: err...nobody of course :)
timotimo huh?
are you sure anybody except mobile devs use qt quick for uis? 14:49
nine All of KDE? 14:50
timotimo what?
seriously?
that's certainly news to me
nine That was one of the huge changes with KDE SC 5. The move to Qt 5 and reimplementation of a lot of UIs in Qt Quick. Qt Quick 2 to be precise AFAIK 14:51
Xliff_ boggles.
Well... Javascript. And rakudo is getting a javascript VM, right?
14:51 mcmillhj left
Xliff_ Not that will have much to do with it. 14:52
I think.
nine en.wikipedia.org/wiki/KDE_Plasma_5 "The graphical interface was fully migrated to QML, which uses OpenGL for hardware acceleration resulting in better performance and reduced power consumption."
14:56 espadrine left
leont QML for GUI seems to make sense, we do it at work (though I'm not near that part of the code) 14:57
timotimo wow
i didn't know you can make anything more complex than a big box of text and one or two buttons with QML 14:58
my brain just doesn't seem to work that way
i tried to build an app with qml once. it failed horribly
leont IME QML apps have a nasty habit of compiling fine when missing essential dependencies, and then giving cryptic error messages, but it's great for speed of development 14:59
nine QML is Qt catching up with the flexibility of XAML. Except that it's a lot less XML and more usable. Both are just a big step away from having a fixed list of widgets.
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Xliff_ finally passes out.... 15:15
15:15 Xliff_ is now known as Xliff_zzzzz
moritz \o 15:25
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harmil Sometimes I just look up at the stars... 15:56
m: say (1, 2, 3, * * * ** * ... *)[^5]
camelia rakudo-moar d43ea0: OUTPUT«(1 2 3 8 13122)␤»
pmurias timotimo: re extra deps being cthulu insane, why is just installing system packages (with confirmation from the user) so crazy?
s/extra/external/ 15:57
leont It's hard to support in any portable manner 15:58
And it's not something and ordinary user can do, usually
timotimo pmurias, what is the package called? 16:00
BenGoldberg m: (1*2**3, 2*3**8, 3*8**13122).say; 16:02
camelia rakudo-moar d43ea0: OUTPUT«(8 13122 6667001656068882507949166491097252226058888627222166005887173256462278906983053370146466725548450482632931634331353515641968601006235950862408107856368826639386598694870796685532822659501609002312671269415569151459443538320419362567186388828519037…»
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timotimo that eacalated quickly 16:05
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pmurias timotimo: the module authors can just provide the package name for the popular distros (like debian) 16:24
timotimo: often when installing stuff (and modules from cpan) I just look in the docs and install the debian packages they mention 16:25
harmil BenGoldberg: Yeah, there's a reason I only output the 4th element of that list :)
er fifth
Also note that the 7th element blows up Perl :) 16:26
m: say (1, 2, 3, * * * ** * ... *)[^7]
camelia rakudo-moar d43ea0: OUTPUT«Numeric overflow␤ in whatevercode at <tmp> line 1␤ in block <unit> at <tmp> line 1␤␤Actually thrown at:␤ in block <unit> at <tmp> line 1␤␤»
pmurias timotimo: or I'm installing a package with a somewhat related name and a -dev prefix without a particularly deep understanding about it 16:27
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pmurias timotimo: specifiying once for all platforms doesn't seems doable in a sane manner 16:37
timotimo quite. 16:41
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dalek c: e7c5a4a | (Jan-Olof Hendig)++ | doc/Language/control.pod6:
Fixed typos
 16:50
pmurias CPAN::Plugin::Sysdeps++ seems just have a mapping between modules and the required package in different system managers 16:51
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ugexe i dont think a meta field for distro packages really fits the scope of rakudo though; rather some 3rd party module would just define their own format and you'd build-depends *that* 17:11
stmuk_ wonders if zef could support prove6 17:14
M-Illandan where is zef from? It's the new panda?
ugexe stmuk_: it does github.com/ugexe/zef/blob/master/l...ce/TAP.pm6 (havent tested in a few months though) 17:15
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ugexe to enable you either edit the resources/config.json or do `--/prove --/default-tester` to disable the 2 testers that are tried first 17:17
stmuk_ ah!
Woodi ugexe: can I install modules via zef into eg. ~/perl6 dir ? 17:18
ugexe i've kept regular prove as the default for now because it was significantly faster. maybe not anymore
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ugexe Woodi: github.com/ugexe/zef#custom-instal...-locations 17:18
Woodi ugexe: thanx :) 17:20
ugexe Could use a config option to set the default still though
Woodi how I miss that ? I checked readme first... 17:21
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grondilu is reading about Vulkan and considers adding its API to the most wanted modules list. 17:44
it seems to have a clean C API (and in surprisingly few different header files)
BenGoldberg m: sub hailstone-length(Int $n) is cached { $n == 1 ?? 1 !! $n +& 1 ?? 1+hailstone-length($n * 3 + 1) !! 1+hailstone-length($n div 2) }; say hailstone-length(27); 17:46
camelia rakudo-moar d43ea0: OUTPUT«5===SORRY!5=== Error while compiling <tmp>␤Use of the 'is cached' trait is experimental; please 'use experimental :cached'␤at <tmp>:1␤»
BenGoldberg m: use experimental :cached; sub hailstone-length(Int $n) is cached { $n == 1 ?? 1 !! $n +& 1 ?? 1+hailstone-length($n * 3 + 1) !! 1+hailstone-length($n div 2) }; say hailstone-length(27); 17:47
camelia rakudo-moar d43ea0: OUTPUT«112␤»
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zacts hi #perl6 17:49
dalek rl6-most-wanted: 48c04d0 | grondilu++ | most-wanted/bindings.md:
update bindings.md

add [Vulkan](en.wikipedia.org/wiki/Vulkan_%20API%21)
Not sure it's really "most wanted", but it seems cool and from what I read OpenGL is doomed to disappear anyway, so we'll need something else for 3D graphics.		 17:50
El_Che zacts: hi
zacts does perl6 let you redefine the language kind of like lisp does?
leont Yes, except it has syntax
grondilu it's not quite completely operational now though. 17:51
but it's a major goal of the language.
zacts ah ok cool 17:52
so what is making this difficult currently?
leont Having syntax :-p 17:53
geekosaur mostly that what's currently there needs to be rethought because it's not flexible enough as yet, I think
nine pmurias: rather than package names, I'd try depending on libraries, as package managers often have options to search for packages by library name.
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grondilu btw will eventually be able to define and use slangs without having to use NQP code? 17:55
s/will /& we/
because the examples I've seen so far are quite cumbersome.
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geekosaur eventually, yes. as I said, design still needs to be worked out; the current one never got finished (hence nqp goop) because it was realized it couldn't do everything they wanted 18:00
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dalek rl6-most-wanted: 7f475c7 | grondilu++ | most-wanted/bindings.md:
Update bindings.md

fix URI encoding		 18:01
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El_Che Interesting read with Perl 6 content: salva.github.io/YAPC-Europe-2016/ 18:18
mst and lizmat are the heros again :)
"Perl 6 is mostly Lisp with a (funny) syntax!!!" 18:19
grondilu I've read the same thing about javascript, IIRC 18:20
leont made that point years ago: blogs.perl.org/users/leon_timmerman...erent.html 18:28
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RabidGravy who do some paths in the docs have the literal '$COLON' in them for ':' ? 18:30
is that intentional or just something having the wrong sort of quotes somewhere?
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RabidGravy e.g. "docs.perl6.org/type/X$COLON$COLONS...ONNumeric" 18:31
stmuk_ It's intentional .. although I don't really understand why the usual url encoding isn't used 18:32
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RabidGravy very odd 18:33
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AlexDaniel “someone has to start …” haha 18:34
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RabidGravy is there a better way of constraining the length of the elements of an array than something like: 18:42
m: my @foo where { !$_.grep({ $_.chars > 3}).elems }; @foo = <aaaa b c>;
camelia rakudo-moar d43ea0: OUTPUT«Type check failed in assignment to @foo; expected <anon> but got Str ("aaaa")␤ in block <unit> at <tmp> line 1␤␤»
ugexe m: my @foo[3]; @foo = <1 2 3 4> 18:43
camelia rakudo-moar d43ea0: OUTPUT«Index 3 for dimension 1 out of range (must be 0..2)␤ in block <unit> at <tmp> line 1␤␤»
ugexe m: my @foo[3]; @foo = <1 2 3> 18:44
camelia ( no output )
ugexe oh of the elements, doh
RabidGravy yeah :)
smls m: my @foo where .all.chars > 3; @foo = <aaaa b c>;
camelia rakudo-moar d43ea0: OUTPUT«Type check failed in assignment to @foo; expected <anon> but got Str ("b")␤ in block <unit> at <tmp> line 1␤␤»
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RabidGravy ah yes, that is at least nicer looking cheers 18:48
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smls m: subset ShortStr of Str where .chars <= 3; my ShortStr @foo; @foo = <aaa bbbb>; 18:52
camelia rakudo-moar d43ea0: OUTPUT«Type check failed in assignment to @foo; expected ShortStr but got Str ("bbbb")␤ in block <unit> at <tmp> line 1␤␤»
smls RabidGravy: This one ^^ even produces a nicer error message 18:53
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atweiden i made a concise DSL grammar example, one that involves `include` directives such as those found in Haml templates 19:00
i'm trying to understand why the include directive AST isn't bubbling up in Actions
in this file: bitbucket.org/atweiden/recursive-i...ew-default
i am passing the AST up from `method include`, to `include-line`, to `segment:include-line`
but it stops bubbling up for some reason
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stmuk_ blogs.perl.org/users/steve_mynott/2...apceu.html 19:03
smls atweiden: I think `Inclusive.parsefile` is setting $/ in the current scope to its own Match object, and then `make` operates on that. 19:04
atweiden: Instead of using `method include($/ is copy)`, try e.g. `method include($m)` and then do `$m.make:` instaed of `make`. 19:05
arnsholt Yeah, that's a classic action class surprise
atweiden smls: ty, wow i was spending so much time on this yesterday 19:07
didn't know you could do $m.make: 19:08
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RabidGravy smls, it's on my todo to find a way to let subsets to define the error messages 19:26
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moritz m: subset Foo of Int where { fail "not quite" }; my Foo $x = 42; 20:46
camelia rakudo-moar d43ea0: OUTPUT«not quite␤ in any at /home/camelia/rakudo-m-inst-1/share/perl6/runtime/CORE.setting.moarvm line 1␤ in block <unit> at <tmp> line 1␤␤»
moritz RabidGravy: ^^ see above
dalek ateverable: f649e15 | MasterDuke17++ | / (3 files):
Move commit shortening into a shared function (only implemented in Benchable and Committable for now)
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tbrowder I need help with the Build.pm. I think I need my own script unless there's a way not to use the Build classes make. 21:02
dalek ateverable: c401d58 | MasterDuke17++ | Benchable.p6:
Set the background of the graph to white to make it more legible, Xliff++
 21:03
ugexe so write a build class that runs your own script 21:15
class Build { method build($dir) { run '...', :cwd($dir); } }; 21:16
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ugexe m: my $module-support = BEGIN (try require ::("Test")) !~~ Nil; INIT { if $module-support { require ::("Test"); }; }; say ?$module-support ?? ::("Test").perl !! "Failed to load"; # Programmatic requires not only works, but it works in phasers 22:06
camelia rakudo-moar d43ea0: OUTPUT«Test␤»
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dalek ateverable: 1919837 | MasterDuke17++ | Benchable.p6:
Don't know how this happened, but revert breaking change
 22:15
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Xliff_zzzzz ugexe++ # Mod support in phasers 22:36
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grondilu can I not declare a stub sub in a role and define it in a class implementing that role? 22:54
m: role Talker { sub talk {...} }; class :: does Talker { sub talk { say "hi" } }.talk
camelia rakudo-moar d43ea0: OUTPUT«Method 'talk' not found for invocant of class '<anon|57780256>'␤ in block <unit> at <tmp> line 1␤␤»
grondilu m: role Talker { sub talk {...}; method talk { talk } }; class :: does Talker { sub talk { say "hi" } }.talk 22:55
camelia rakudo-moar d43ea0: OUTPUT«Stub code executed␤ in sub talk at <tmp> line 1␤ in method talk at <tmp> line 1␤ in block <unit> at <tmp> line 1␤␤Actually thrown at:␤ in block <unit> at <tmp> line 1␤␤»
grondilu ^like that?
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grondilu m: use NativeCall; sub fork is native {*}; fork; say "hi" 22:58
camelia rakudo-moar d43ea0: OUTPUT«hi␤hi␤»
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jnthn grondilu: No, since subs are orthogonal to OO; the MOP doesn't have any idea about them. 22:59
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jnthn So they're not really part of the role 23:00
They just happen to be in the lexical scope that is the role's body
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grondilu the thing is, I was reading docs.perl6.org/language/nativecall...f_Pointers (the part about objects and handles) and I was wondering how to factorize it for various classes using different native functions. 23:09
so now I'm considering something like role Foo[Sub &native_func] is native('CPointer') {...} 23:10
and then something like class Bar does Foo(sub () is native(&lib) is symbol('make_a_bar') {*}) {...} 23:11
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grondilu m: use NativeCall; say .WHAT given sub () is native() is symbol('fork') {*} 23:19
camelia rakudo-moar d43ea0: OUTPUT«(Sub+{}+{})␤»
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grondilu so it seems I can use a sub declaration as an object, even if it's a native binding 23:19
so maybe I can get away with using a parametric role indeed. 23:20
'fork' is a neat example of a function to use here for showcasing NativeCall here with camelia. Anyone knows others? 23:29
b2gills m: #`(I finally have a use for the ring operator) say {([Ro] %(<+ - * />Z=>*+1,*-1,* *2,*div 2){.comb})(0)}('++**--/') # codegolf.stackexchange.com/a/91483/1147
camelia rakudo-moar d43ea0: OUTPUT«3␤»
grondilu nice. If we had an obfuscation context, you might win :) 23:30
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grondilu though to be fair it's actually fairly readable. 23:31
it is a nice golf anyway
m: say {([Ro] 23:32
camelia rakudo-moar d43ea0: OUTPUT«5===SORRY!5=== Error while compiling <tmp>␤Unable to parse expression in parenthesized expression; couldn't find final ')' ␤at <tmp>:1␤------> 3say {([Ro]7⏏5<EOL>␤ expecting any of:␤ statement end␤ statement modifier…»
grondilu m: say ([Ro] %(<+ - * />Z=>*+1,*-1,* *2,*div 2)<+ + * * - - />)(0) 23:34
camelia rakudo-moar d43ea0: OUTPUT«3␤»
jnthn It may be possible to save a char by using the Unicode multiplication operator instead of * *2 23:36
(thus removing the space) 23:37
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jnthn sleep & 23:40
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b2gills On that site it is usually scored by bytes not chars, × is two bytes in utf8 so it would be the same number of bytes. Though it would make it clearer 23:48
grondilu if I have a repr('CPointer') can I still mix it with a role? 23:51
m: use NativeCall; role Foo {}; class Bar is repr('CPointer') does Foo {}
camelia ( no output )
grondilu m: use NativeCall; role Foo { method foo { say "foo!" } }; class Bar is repr('CPointer') does Foo {}; Bar.foo 23:54
camelia rakudo-moar d43ea0: OUTPUT«foo!␤»
grondilu seems to work. 23:55
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grondilu It surprises me, considering I can't mix roles to Blobs. Why Blobs would be harder to mixin than CPointers is beyond me. 23:55
m: use NativeCall; role Foo[Sub &native] { has &.native }; role Bar is repr('CPointer') {}; class :: does Bar does Foo(sub fork is native {*}) {} 23:58
camelia rakudo-moar d43ea0: OUTPUT«5===SORRY!5=== Error while compiling <tmp>␤Unable to parse expression in typename; couldn't find final ')' ␤at <tmp>:1␤------> 3ointer') {}; class :: does Bar does Foo(7⏏5sub fork is native {*}) {}␤»
grondilu m: use NativeCall; role Foo[Sub &native] { has &.native }; role Bar is repr('CPointer') {}; class :: does Bar does Foo(sub fork() is native {*}) {} 23:59
camelia rakudo-moar d43ea0: OUTPUT«5===SORRY!5=== Error while compiling <tmp>␤Unable to parse expression in typename; couldn't find final ')' ␤at <tmp>:1␤------> 3ointer') {}; class :: does Bar does Foo(7⏏5sub fork() is native {*}) {}␤»

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