»ö« Welcome to Perl 6! | perl6.org/ | evalbot usage: 'p6: say 3;' or rakudo:, std:, or /msg camelia p6: ... | irclog: irc.perl6.org | UTF-8 is our friend!
Set by masak on 12 May 2015.
japhb_ is back from an exhausting week abroad 00:06
00:06 japhb_ is now known as japhb
japhb How goes the Perl 6 world? 00:06
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timotimo PerlJam, panda doesn't require something to be in the ecosystem to install it; it just has to have a META.info and then you can just panda install . 00:42
(just something i picked up in backscroll) 00:43
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raiph FYI #perl6: Perl 6 (6.Advent) online at dev.perltuts.com/try 00:58
timotimo PerlJam: did you know you can write "\c[foobar, bazquux]" instead of "\c[foobar]\c[bazquux]"?
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BenGoldberg m: say "\c[PILE OF POO, SNOWMAN]" 01:03
camelia rakudo-moar 75ac71: OUTPUT«💩☃␤»
timotimo raiph: why only advent, not birthday? :) 01:04
oh, you're not the one responsible for this site 01:05
ShimmerFairy Is there (or should there) be a way to tell an enum declaration not to pollute the surrounding scope? I'd like to have enum declarations where you're required to use the qualified name regardless, and thus also avoid warnings where I specifically don't need them :)
m: enum Foo <quux>; enum Bar <quux>; 01:06
camelia rakudo-moar 75ac71: OUTPUT«Potential difficulties:␤ Redeclaration of symbol quux␤ at /tmp/FLCo0SjiK6:1␤ ------> 3enum Foo <quux>; enum Bar <quux>7⏏5;␤»
raiph timotimo: if it was .birthday someone would be asking why it isn't .christmas ;) Anyhoo, I only just noticed it and thought it was worth #perl6ers knowing about it... 01:07
timotimo: and presumably it would be best if it was *.birthday rather than just the compiler 01:08
timotimo ah
this thing doesn't have any security measures in place, does it? >_> 01:09
raiph shh
timotimo "hey, u want to run a bash on my server? go ahead, man!" 01:10
timotimo writes a bitcoin miner in perl6 :P
BenGoldberg m: say "\c[WHITE SUN WITH RAYS, PLUS SIGN, SNOWMAN, EQUALS SIGN, POTABLE WATER SYMBOL]" 01:11
camelia rakudo-moar 75ac71: OUTPUT«☼+☃=🚰␤»
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BenGoldberg camelia will timeout if the code takes too long to complete, so using it's cpu cycles to mine bitcoins might not be worthwhile. 01:13
m: sleep 10;
camelia ( no output ) 01:14
BenGoldberg m: say Promise.new
camelia rakudo-moar 75ac71: OUTPUT«Promise.new(scheduler => ThreadPoolScheduler.new(initial_threads => 0, max_threads => 16, uncaught_handler => Callable), status => PromiseStatus::Planned)␤»
BenGoldberg m: say Promise.new.await;
camelia rakudo-moar 75ac71: OUTPUT«Method 'await' not found for invocant of class 'Promise'␤ in block <unit> at /tmp/s7DaklpkEk:1␤␤»
BenGoldberg m: await Promise.new; 01:15
timotimo BenGoldberg: how about i run a double fork kind of deal and become unparented by the executing process?
camelia rakudo-moar 75ac71: OUTPUT«(timeout)»
timotimo unless that evaluation thingie is using cgroups or so, there's not a chance it'll catch that
BenGoldberg m: say Processes::fork(); 01:16
camelia rakudo-moar 75ac71: OUTPUT«Could not find symbol '&fork'␤ in block <unit> at /tmp/Q3Hohi4Cgq:1␤␤Actually thrown at:␤ in block <unit> at /tmp/Q3Hohi4Cgq:1␤␤»
BenGoldberg m: sub fork() returns Int is native(*) {}; say fork(); 01:18
camelia rakudo-moar 75ac71: OUTPUT«5===SORRY!5=== Error while compiling /tmp/tO_qQpqHat␤Can't use unknown trait 'is native' in a sub+{callable[int]} declaration.␤at /tmp/tO_qQpqHat:1␤ expecting any of:␤ rw raw hidden-from-backtrace hidden-from-USAGE␤ cached pu…»
BenGoldberg m: sub fork() returns Int is Native(*) {}; say fork();
camelia rakudo-moar 75ac71: OUTPUT«5===SORRY!5=== Error while compiling /tmp/6AzReSVvrY␤Can't use unknown trait 'is Native' in a sub+{callable[int]} declaration.␤at /tmp/6AzReSVvrY:1␤ expecting any of:␤ rw raw hidden-from-backtrace hidden-from-USAGE␤ cached pu…»
timotimo need to "use NativeCall"
BenGoldberg m: use NativeCall; sub fork() returns Int is native(*) {}; say fork(); 01:19
camelia rakudo-moar 75ac71: OUTPUT«5===SORRY!5=== Error while compiling /tmp/nuuZI4L_4t␤No appropriate parametric role variant available for 'Native'␤at /tmp/nuuZI4L_4t:1␤»
timotimo you want "is native(Str)" 01:20
BenGoldberg m: use NativeCall; sub fork() returns Int is native {*}; say fork();
camelia rakudo-moar 75ac71: OUTPUT«(timeout)» 01:21
timotimo an error of some kind i would understand, or even camelia crashing ... but a timeout?
BenGoldberg m: use NativeCall; sub kill(Int $proc, Int $sig) is native {*}; kill($*PID,SIGINT); sleep 1; 01:22
camelia rakudo-moar 75ac71: OUTPUT«(signal INT)»
AlexDaniel Hm, some people tend to dislike perl6 logo. I don't get it, it's the best logo I've ever seen… 01:24
timotimo drive.google.com/file/d/0B9i8WqXLW...view?pli=1 - oh wow 01:25
AlexDaniel: did you see that amusing poster for some death metal festival or something?
where one band had its name spelled in colorful, friendly letters
and all others looked like they used the exact same font; or were made by the exact same illustrator? :D 01:26
AlexDaniel nope :D
timotimo gimme a minute
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timotimo damn you, twitter >:( 01:28
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timotimo www.buzzfeed.com/patricksmith/party...kpQrnxplvO - a google search found a post about the picture i meant in just seconds 01:30
why did i even think i could find it faster via my "search twitter for anything perl6 related" thing or even "show me all my tweets please"
BenGoldberg This poster? 2.bp.blogspot.com/-QthKHzvz2A8/UexN.../flyer.jpg 01:33
timotimo that's not the one i first saw 01:35
the one i meant was the one i linked to above ^
the buzzfeed link
AlexDaniel awesome 01:36
timotimo though the landscape of programming language logos isn't as dire 01:39
AlexDaniel yeah, some mating snakes here, retarded creature there. Oh look, a butterfly! 01:41
timotimo goes to bed now
BenGoldberg Perl5's logo is an onion. A joke about pearl onions, iirc. 01:44
lucs Um, reading on regexes, I understand $/ , but what is the tilde in say ~$/ ? 01:50
ugexe return $/.Str instead of the match object 01:51
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TEttinger timotimo: haha, party cannon is legitimate metal despite the logo 01:52
lucs ugexe: Ah, I see. Thanks. (in retrospect, I guess looking up the ~ operator is what I should have done) 01:53
TEttinger (also, worst logo for a sports team is activerain.com/image_store/uploads/...855823.jpg ) 01:54
raiph apparently an online perl6 has been available at dev.perltuts.com/try since 2013 01:59
it looks like it's Star (`use MIME::Base64` worked) 02:00
retupmoca m: my @x = 1, 2, 3; my $foo = @x.flat; $foo.flat; 02:07
camelia ( no output )
retupmoca m: my @x = 1, 2, 3; my $foo = @x.flat; $foo.flat; $foo.flat 02:08
camelia rakudo-moar 75ac71: OUTPUT«This Seq has already been iterated, and its values consumed␤ in block <unit> at /tmp/cp4oTlD0rV:1␤␤»
retupmoca that seems...wrongish
m: my @x = 1, 2, 3; my $foo = @x.flat; $foo.flat; say $foo 02:09
camelia rakudo-moar 75ac71: OUTPUT«This Seq has already been iterated, and its values consumed␤ in block <unit> at /tmp/PLbJB_ZUI6:1␤␤»
retupmoca m: my @x = 1, 2, 3; my $foo = @x.flat; say $foo
camelia rakudo-moar 75ac71: OUTPUT«(1 2 3)␤»
gfldex m: my @x = 1, 2, 3; my @foo = @x.flat; @foo.flat; say @foo
camelia rakudo-moar 75ac71: OUTPUT«[1 2 3]␤»
gfldex if you want a list you have to ask for a list
retupmoca m: my @x = 1, 2, 3; say $foo; my $foo = @x.flat; say $foo 02:10
camelia rakudo-moar 75ac71: OUTPUT«5===SORRY!5=== Error while compiling /tmp/gT1Tvwt_zq␤Variable '$foo' is not declared␤at /tmp/gT1Tvwt_zq:1␤------> 3my @x = 1, 2, 3; say 7⏏5$foo; my $foo = @x.flat; say $foo␤»
retupmoca m: my @x = 1, 2, 3; my $foo = @x.flat; say $foo; $foo.flat; say $foo
camelia rakudo-moar 75ac71: OUTPUT«(1 2 3)␤This Seq has already been iterated, and its values consumed␤ in block <unit> at /tmp/rsYV9D8BhT:1␤␤»
retupmoca sure, but only being able to use $foo once?
or rather, once you call .flat, you can no longer use it 02:11
gfldex that's what a Seq does
retupmoca ...huh 02:12
retupmoca wanders off to read more about GLR changes
raiph .tell timotimo Looks like the architecture underlying the online perl 6 is alexm.github.io/writing-tutorials-...tuts/#/6/4 02:18
yoleaux raiph: I'll pass your message to timotimo.
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Hotkeys Is there a way to convert from a base in a variable 04:34
m: say :3<22>
camelia rakudo-moar 75ac71: OUTPUT«8␤»
Hotkeys vs
m: my $b = 3; say :$b<22>
camelia rakudo-moar 75ac71: OUTPUT«(Mu)␤»
Hotkeys is there another syntax for the second 04:35
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dalek osystem: 6a28722 | PerlJam++ | META.list:
Add Astro::Sunrise
 06:14
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xiaoyafeng I'm confused about Num and Rat etc. 06:28
I tried a example onen.wikibooks.org/wiki/Perl_6_Progr...s_and_Data
my Num $bar = 3.14;
but got an error:Type check failed in assignment to '$dd'; expected 'Num' but got 'Rat' 06:29
llfourn m: my Num $bar = 3.14
camelia rakudo-moar 75ac71: OUTPUT«Type check failed in assignment to $bar; expected Num but got Rat␤ in block <unit> at /tmp/gOC8ksRUqV:1␤␤»
masak xiaoyafeng: 3.14 is a Rat
m: say (3.14).^name
camelia rakudo-moar 75ac71: OUTPUT«Rat␤»
masak xiaoyafeng: and it does not fit in a Num variable.
m: say Rat ~~ Num 06:30
camelia rakudo-moar 75ac71: OUTPUT«False␤»
masak xiaoyafeng: this works, though
xiaoyafeng so what is Num?
masak m: my Num $bar = 3.14e0
camelia ( no output )
masak m: say 3.14e0.^name
camelia rakudo-moar 75ac71: OUTPUT«Num␤»
masak xiaoyafeng: think of Rat as "exact" and Num as "approximate"/float
both are real numbers
llfourn m: my Numeric $bar = 3.14; 06:31
camelia ( no output )
masak m: say Int ~~ Real; say Rat ~~ Real; say Num ~~ Real
camelia rakudo-moar 75ac71: OUTPUT«True␤True␤True␤»
masak m: my Real $bar = 3.14
camelia ( no output )
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llfourn m; say Num ~~ Numeric; say Numeric ~~ Num; 06:31
m: say Num ~~ Numeric; say Numeric ~~ Num;
camelia rakudo-moar 75ac71: OUTPUT«True␤False␤»
xiaoyafeng hmmm, If I wan't a parameter maybe 3, 3.0 or 3e0 what type should I say?
masak "Numeric" is the topmost type. it's anything that feels like a number somehow. including complex numbers. 06:32
m: say Complex ~~ Numeric
camelia rakudo-moar 75ac71: OUTPUT«True␤»
masak xiaoyafeng: I'd say Real
xiaoyafeng: unless you know you want complex numbers, too.
then I'd say Numeric
llfourn xiaoyafeng: check out: docs.perl6.org/type/Numeric (the type graph down the bottom). It just taught me a lot :) 06:33
masak I agree that people are frequently confused about 3.14 not being a Num. 06:34
not so sure what to do about that; we're kind of in a local optimum where we are.
xiaoyafeng Thanks!!! Please correct the wrong example on wikibooks. :) 06:35
masak url?
llfourn en.wikibooks.org/wiki/Perl_6_Progr...s_and_Data 06:36
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llfourn xiaoyafeng: I can't see an example with Num? 06:36
xiaoyafeng en.wikibooks.org/wiki/Perl_6_Progr...nd_Context
We can also use the type system to catch errors as we move data between variables: 06:37
my Int $foo = 5;
my Num $bar = 3.14;
the last few line
llfourn just changed it :)
(anyone can change it)
masak tha powar of wikih! 06:38
llfourn are we trying to maintain this wikibook?
it doesn't mention Rat there...
xiaoyafeng I notice the last update is on 2013 06:39
llfourn well we're lucky that's the only thing wrong then I guess 06:40
masak keeping tutorials up-to-date takes work :/
the wikibook one has never been all that "core", in the sense of "maintained by people on #perl6", AFAIK 06:41
Hotkeys the docs.perl6.org site is pretty good, not as tutorialy though
just docs 06:42
llfourn Hotkeys: yes -- that's probably something we need to do something about
xiaoyafeng wow the type graph is very useful!!!
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Hotkeys man 06:47
before messing with perl 6 i was messing with rust
and I can't get let <variable> out of my systemn 06:48
llfourn it is strange that 3.14 is not a Num ie "number" why wasn't Num called Float?
Hotkeys: is let the same as my? 06:49
Hotkeys nah
m: let @a = 1..10
camelia rakudo-moar 75ac71: OUTPUT«5===SORRY!5=== Error while compiling /tmp/4Jz1PF8Zhe␤Variable '@a' is not declared␤at /tmp/4Jz1PF8Zhe:1␤------> 3let 7⏏5@a = 1..10␤»
Hotkeys er
it is in rust
if that's what you're asking
llfourn Hotkeys: yeah
Hotkeys it declares a variable in scope
llfourn wait we have let in p6? 06:50
Hotkeys yeah
does something else though
similar to temp 06:51
llfourn m: my $x = 'foo'; let $x = 'bar'; $x.say;
camelia rakudo-moar 75ac71: OUTPUT«bar␤»
Hotkeys but only restores the value if the block fails
llfourn m: my $x = 'foo'; { let $x = 'bar'; fail } $x.say;
camelia rakudo-moar 75ac71: OUTPUT«5===SORRY!5=== Error while compiling /tmp/jAEP1tNPUC␤Strange text after block (missing semicolon or comma?)␤at /tmp/jAEP1tNPUC:1␤------> 3my $x = 'foo'; { let $x = 'bar'; fail }7⏏5 $x.say;␤ expecting any of:␤ infix␤ …»
llfourn m: my $x = 'foo'; { let $x = 'bar'; fail }; $x.say;
camelia ( no output )
llfourn m: my $x = 'foo'; { let $x = 'bar'; fail 'test'} $x.say; 06:52
camelia rakudo-moar 75ac71: OUTPUT«5===SORRY!5=== Error while compiling /tmp/SAsQmLRUW9␤Strange text after block (missing semicolon or comma?)␤at /tmp/SAsQmLRUW9:1␤------> 3 = 'foo'; { let $x = 'bar'; fail 'test'}7⏏5 $x.say;␤ expecting any of:␤ infix␤ …»
Hotkeys I don't have a good example
llfourn m: my $x = 'foo'; { let $x = 'bar'; fail 'test'}; $x.say;
camelia ( no output )
llfourn Hotkeys: well when you think of one, docs.perl6.org/routine/let is begging for it :)
Hotkeys yeah I know 06:53
llfourn m: my $x = 'foo'; try { let $x = 'bar'; die; }; $x.say; 06:54
camelia rakudo-moar 75ac71: OUTPUT«foo␤»
llfourn bows
Hotkeys nice
06:56 Ven left
Hotkeys my $x = 5; try { let $x = 7; $x += 35; }; $x.say; 06:56
er
no
m: my $x = 5; try { let $x = 7; $x += $n; }; $x.say;
camelia rakudo-moar 75ac71: OUTPUT«5===SORRY!5=== Error while compiling /tmp/mdTQJ0dG1Y␤Variable '$n' is not declared␤at /tmp/mdTQJ0dG1Y:1␤------> 3my $x = 5; try { let $x = 7; $x += 7⏏5$n; }; $x.say;␤»
Hotkeys rip
m: my $x = 5; my $n; try { let $x = 7; $x += $n; }; $x.say; 06:57
camelia rakudo-moar 75ac71: OUTPUT«Use of uninitialized value of type Any in numeric context in block at /tmp/YYcpZRmvmv:1␤7␤»
Hotkeys I'll just stick to the simple die
lol
ShimmerFairy m: my $a = 4; { temp $a = 5; say $a }; say $a 06:58
camelia rakudo-moar 75ac71: OUTPUT«5␤4␤»
ShimmerFairy 'temp' will do the "don't touch the outer scope" thing, but I forget how 'let' and 'temp' are spec'd to differ. 06:59
Hotkeys ya
let only reverts on an error according to docs
"Like the temp listop, but only restores the value if the block exits unsuccessfully." 07:00
ShimmerFairy I remember the design docs mentioning 'temp' having some temporal fiddling to it, I'll go refresh my memory :P 07:01
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ShimmerFairy yeah, that's more-or-less what S04 says :) . AIUI, 'temp' is, well, temporary, and 'let' sets up a hypothetical value where leaving a block unsuccessfully says "ok, nevermind what I said about $x, _clearly_ that's not how things are supposed to go" :) 07:06
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timotimo o/ 07:23
yoleaux 02:18Z <raiph> timotimo: Looks like the architecture underlying the online perl 6 is alexm.github.io/writing-tutorials-...tuts/#/6/4
timotimo i wonder if somebody wants to put a graph exploration UI widget thingie onto our doc.per6.org site
dalek ast: 4ec7087 | usev6++ | S09-typed-arrays/arrays.t:
Add tests for RT #120071 and RT #123037
 07:24
synbot6 Link: rt.perl.org/rt3/Public/Bug/Display...?id=120071
timotimo doc.perl6.org/type/Exception#Routin..._class_Any - scroll up a few screenfuls to see what i'm talking about ...
doc.perl6.org/images/type-graph-Exception.png - huh, this is even worse!?! 07:25
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xiaoyafeng p6:say 3; 07:39
Ven p6: say 3; 07:40
camelia rakudo-moar 75ac71: OUTPUT«3␤»
Ven the space matters :)
xiaoyafeng p6: say 3;
camelia rakudo-moar 75ac71: OUTPUT«3␤»
xiaoyafeng Thanks ;)
moritz \o 07:41
timotimo ohai moritz 07:42
m: sub do($p) { ::($p.value)($p.key) }; do :3say 07:43
camelia ( no output )
timotimo m: sub do($p) { ::('&' ~ $p.value)($p.key) }; do :3say
camelia ( no output )
timotimo m: sub doit($p) { ::('&' ~ $p.value)($p.key) }; doit :3say
camelia rakudo-moar 75ac71: OUTPUT«Too few positionals passed; expected 1 argument but got 0␤ in sub doit at /tmp/b3XBKZLJAj:1␤ in block <unit> at /tmp/b3XBKZLJAj:1␤␤»
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timotimo m: sub doit(*%kwargs) { for %kwargs.pairs -> $p { ::('&' ~ $p.value)($p.key) } }; doit :3say 07:44
camelia rakudo-moar 75ac71: OUTPUT«No such symbol '&3'␤ in sub doit at /tmp/JOSraffezM:1␤ in block <unit> at /tmp/JOSraffezM:1␤␤Actually thrown at:␤ in sub doit at /tmp/JOSraffezM:1␤ in block <unit> at /tmp/JOSraffezM:1␤␤»
timotimo m: sub doit(*%kwargs) { for %kwargs.pairs -> $p { ::('&' ~ $p.key)($p.value) } }; doit :3say
camelia rakudo-moar 75ac71: OUTPUT«3␤»
timotimo m: sub doit(*%kwargs) { for %kwargs.pairs -> $p { ::('&' ~ $p.key)($p.value) } }; doit :3say, :9say
camelia rakudo-moar 75ac71: OUTPUT«9␤»
timotimo ah, of course
Woodi hi today :) 07:52
m: say (1,1,1) Z+ (2,3,4); say (1,1,1) [Z+] (2,3,4); [Z+] (1,1,1), (2,3,4);
camelia rakudo-moar 75ac71: OUTPUT«(3 4 5)␤(3 4 5)␤»
Woodi looks [Z+] not doing anything here... 07:53
nine .tell tadzik The answer to your question is probably import signal; signal.signal(signal.SIGINT, signal.SIG_DFL) # because Python is so user friendly
yoleaux nine: I'll pass your message to tadzik.
Woodi nine: woo, so many signals ;) 07:54
timotimo SIG_DictatorForLife ?!? 07:55
Woodi: interestingly, having [Z+] in the middle will generate the exact same AST that having it at the very beginning would 07:56
and with only two arguments, there's no noticable difference between Z+ and [Z+]
[Tux] test 50000 37.695 37.576 07:58
test-t 50000 38.462 38.343
Woodi story is: I learned today a bit of Lisp and they bash C++ for duing Z+ in a loop. Lisp do this by constructing anonymous lambda ;) 07:59
so finally I learned what Z. do in Perl 6. and that [.+] is reduce op :) 08:00
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timotimo i was wrong about the AST 08:02
Woodi m: say (1,2,3) ^+ (4,5,6) 08:03
camelia rakudo-moar 75ac71: OUTPUT«one((1 2 3), 3)␤»
Woodi what this is doing ?
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timotimo the one with [Z+] in the middle generates METAOP_ZIP(&infix:<+>, &METAOP_REDUCE_LEFT), the other calls METAOP_REDUCE_LISTINFIX(METAOP_ZIP(&infix:<+>, &METAOP_REDUCE_LEFT)) 08:04
until now i didn't even know METAOP_ZIP takes two arguments
moritz Woodi: prefix:<+> on a list gives the number of elements
Woodi: and infix:<^> constructs a one() junction
timotimo that's right, ^+ isn't one operator; you probably mean +^ instead?
m: say 1023 +^ 33
camelia rakudo-moar 75ac71: OUTPUT«990␤»
timotimo m: say 0b110110110 +^ 0b1001001 08:05
camelia rakudo-moar 75ac71: OUTPUT«511␤»
timotimo m: say (0b110110110 +^ 0b1001001).base(2)
camelia rakudo-moar 75ac71: OUTPUT«111111111␤»
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Woodi but [Z+] (1,1,1), (2,3,4) should return 12 ? 08:07
moritz no 08:09
it reduces the two arguments with Z+
so it's the same as (1, 1, 1) Z+ (2, 3, 4) 08:10
which again is the same as (1+2), (1+3), (1+4)
Woodi [ ] do not "extends" what's inside ?
kmel m: class Human { 08:11
has $name;
has $age;
has $sex;
has $nationality;
camelia rakudo-moar 75ac71: OUTPUT«5===SORRY!5=== Error while compiling /tmp/sSfRwv5drB␤Missing block␤at /tmp/sSfRwv5drB:1␤------> 3class Human {7⏏5<EOL>␤»
kmel }
my $john = Human.new('john',23,'M','American');
m: class Human {has $name; has $age; has $sex;has $nationality;}; my $john = Human.new('john',23,'M','American'); 08:12
camelia rakudo-moar 75ac71: OUTPUT«Default constructor for 'Human' only takes named arguments␤ in block <unit> at /tmp/AiTo4R9w5M:1␤␤»
timotimo Woodi: it does, but you expect it to go one layer beyond what it's actually doing 08:13
look at it a bit more abstractly:
m: say [+] 1, 2, 3, 4 08:14
camelia rakudo-moar 75ac71: OUTPUT«10␤»
timotimo m: say 1 + 2 + 3 + 4
camelia rakudo-moar 75ac71: OUTPUT«10␤»
timotimo that's easy, right?
m: say (1, 2, 3) Z+ (9, 9, 9) Z+ (1, 1, 1)
camelia rakudo-moar 75ac71: OUTPUT«(11 12 13)␤»
timotimo that's easy, too, right? same thing as this:
m: say (1 + 9 + 1, 2 + 9 + 1, 3 + 9 + 1)
camelia rakudo-moar 75ac71: OUTPUT«(11 12 13)␤»
timotimo and that'sthe very samething asthis: 08:15
m:say [Z+] (1,2, 3),(9,9,9), (1, 1, 1)
m: say [Z+] (1,2, 3),(9,9,9), (1, 1, 1)
camelia rakudo-moar 75ac71: OUTPUT«(11 12 13)␤»
08:15 darutoko joined
timotimo .o( do i need to get a new keyboard or justhit the keys harder?) 08:15
kmel: did you have a question about that piece of code? 08:16
kmel timotimo: yes
timotimo m: class Human {has $name; has $age; has $sex;has $nationality;}; say Human.new(:name<John>, :23age, :sex<M>, :nationality<American>)
camelia rakudo-moar 75ac71: OUTPUT«Human.new␤»
timotimo m: class Human {has $name; has $age; has $sex;has $nationality;}; say Human.new(:name<John>, :23age, :sex<M>, :nationality<American>).perl 08:17
camelia rakudo-moar 75ac71: OUTPUT«Human.new␤»
kmel how do i write a new new method that accepts not named arguments?
timotimo m: class Human {has $.name; has $.age; has $.sex;has $.nationality;}; say Human.new(:name<John>, :23age, :sex<M>, :nationality<American>).perl
camelia rakudo-moar 75ac71: OUTPUT«Human.new(name => "John", age => 23, sex => "M", nationality => "American")␤»
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timotimo m: class Human {has $.name; has $.age; has $.sex;has $.nationality; multi method new ($name, $age, $sex, $nationality) { nextwith(:$name, :$sex,:$age, :$nationality) } }; say Human.new(:name<John>, :23age, :sex<M>, :nationality<American>).perl 08:18
camelia rakudo-moar 75ac71: OUTPUT«Human.new(name => "John", age => 23, sex => "M", nationality => "American")␤»
timotimo m: class Human {has $.name; has $.age; has $.sex;has $.nationality; multi method new ($name, $age, $sex, $nationality) { nextwith(:$name, :$sex,:$age, :$nationality) } }; say Human.new("John", 23, "M", "American").perl
camelia rakudo-moar 75ac71: OUTPUT«Too few positionals passed; expected at least 2 arguments but got only 1␤ in any call_with_args at gen/moar/m-Metamodel.nqp:3620␤ in method new at /tmp/Af0frmMmom:1␤ in block <unit> at /tmp/Af0frmMmom:1␤␤»
timotimo m: class Human {has $.name; has $.age; has $.sex;has $.nationality; multi method new ($name, $age, $sex, $nationality) { self.new(:$name, :$sex,:$age, :$nationality) } }; say Human.new("John", 23, "M", "American").perl
camelia rakudo-moar 75ac71: OUTPUT«Human.new(name => "John", age => 23, sex => "M", nationality => "American")␤»
timotimo there we go
kmel timotimo: many thanks 08:19
timotimo m: class Human {has $.name; has $.age; has $.sex;has $.nationality; multi method new ($name, $age, $sex, $nationality) { self.new(:$name, :$sex,:$age, :$nationality) } }; say Human.new(:name<John>, :23age, :sex<M>, :nationality<American>).perl
camelia rakudo-moar 75ac71: OUTPUT«Human.new(name => "John", age => 23, sex => "M", nationality => "American")␤»
timotimo ^- still compatible with named parameters
Woodi timotimo: thanx.
m: say [+] [Z+] (1,2,3), (4,5,6);
camelia rakudo-moar 75ac71: OUTPUT«21␤»
dalek ast: e8fd9d2 | usev6++ | S02-types/pair.t:
Unfudge passing test (for rakudo.jvm)
timotimo AFK for a little bit 08:20
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mrf m: grammar G { rule TOP { <[:;]> } }; my $match = G.parse(';'); $match.perl 08:48
camelia ( no output )
08:49 Ven left
mrf do you need to escape characters in character classes? 08:49
m: grammar G { rule TOP { <[':' ';']> } }; my $match = G.parse(';'); $match.perl
camelia rakudo-moar 75ac71: OUTPUT«Potential difficulties:␤ Quotes are not metacharacters in character classes␤ at /tmp/jkxc1RsIZf:1␤ ------> 3grammar G { rule TOP { <7⏏5[':' ';']> } }; my $match = G.parse(';')␤ Repeated character (') unexpectedly found in characte…»
08:49 Ven joined
mrf guess that answers that 08:49
timotimo yeah, we try pretty hard to make error messages helpful 08:50
08:50 Ven left 08:51 Ven joined
mrf OOI any idea why that first example didn't match? 08:52
timotimo i didn't even look yet! :)
m: say ";" ~~ / <[:;]> /
camelia rakudo-moar 75ac71: OUTPUT«｢;｣␤»
timotimo m: grammar G { rule TOP { <[:;]> } }; my $match = G.parse(';'); $match.perl.say
camelia rakudo-moar 75ac71: OUTPUT«Match.new(ast => Any, list => (), hash => Map.new(), orig => ";", to => 1, from => 0)␤»
08:53 Ven left
timotimo what makes you say that the first example didn't match? 08:53
mrf duh. Missed the .say
08:53 Ven joined
mrf Naturally you will have no output unless you ask for output....:( 08:53
08:54 Ven left 08:55 Ven joined
FROGGS mrf: aye, camelia is not a REPL :o) 08:56
yoleaux 23 Oct 2015 22:31Z <leont> FROGGS: it seems the syntax I was looking for was: try { EVAL q{ use Terminal::ANSIColor; &colored } } // sub ($text, $) { $text }
FROGGS .tell leont why EVAL 'use' instead of require? isnt it basically the same? 08:57
yoleaux FROGGS: I'll pass your message to leont.
nine FROGGS: won't require die if the module could not be found? 08:58
FROGGS .tell psch 'control exception without handler' is more about CX::WARN etc I think 08:59
yoleaux FROGGS: I'll pass your message to psch.
FROGGS star-m: try require Flubber
camelia ( no output )
FROGGS nine: dont think so
leont FROGGS: no idea. I came across is and it worked
yoleaux 08:57Z <FROGGS> leont: why EVAL 'use' instead of require? isnt it basically the same?
timotimo the thing about EVAL is that it fires up a whole compiler :P 09:00
FROGGS leont: yes, though when you think about it, require kinde is a EVAL 'use'
leont Unlike the other one, that failed as soon as you tried it inside a module { }
FROGGS kinda*
eww
star-m: module Foo { my $x = try { require Terminal::WTF8Color <&colored> } // sub { } } 09:01
camelia ( no output )
FROGGS star-m: module Foo { my $x = try { require Terminal::WTF8Color <&colored> } // sub { }; say $x } 09:02
camelia star-m 2015.09: OUTPUT«sub () { #`(Sub|82437368) ... }␤»
FROGGS star-m: module Foo { my $x = try { require Terminal::WTF8Color <&colored> } // sub { 42 }; say $x() }
camelia star-m 2015.09: OUTPUT«42␤»
FROGGS leont: can you give us an example that misbehaves and potentially ticket it?
lizmat m: say Mu === Any 09:04
camelia rakudo-moar 75ac71: OUTPUT«Cannot call infix:<===>(Mu, Any); none of these signatures match:␤ ($?)␤ ($a, $b)␤ (Int:D \a, Int:D \b)␤ (int $a, int $b)␤ (Num:D \a, Num:D \b)␤ (Num $ where { ... }, Num $ where { ... })␤ (num $a, num $b --> Bool:D)␤ …»
leont m: my &colored = try { require Terminal::ANSIColor <&colored>; &colored } // sub ($, $) { "fail" }; say colored("Success", "green") 09:05
camelia rakudo-moar 75ac71: OUTPUT«fail␤»
leont star-m: my &colored = try { require Terminal::ANSIColor <&colored>; &colored } // sub ($, $) { "fail" }; say colored("Success", "green")
camelia star-m 2015.09: OUTPUT«3Success␤»
leont star-m: module{ my &colored = try { require Terminal::ANSIColor <&colored>; &colored } // sub ($, $) { "fail" }; say colored("Success", "green") }
camelia star-m 2015.09: OUTPUT«5===SORRY!5=== Error while compiling /tmp/cfnszx5Oxw␤Whitespace required after keyword 'module'␤at /tmp/cfnszx5Oxw:1␤------> 3module7⏏5{ my &colored = try { require Terminal::␤»
leont star-m: module Foo { my &colored = try { require Terminal::ANSIColor <&colored>; &colored } // sub ($, $) { "fail" }; say colored("Success", "green") }
camelia star-m 2015.09: OUTPUT«fail␤»
leont star-m: module Foo { my &colored2 = try { require Terminal::ANSIColor <&colored>; &colored } // sub ($, $) { "fail" }; say colored2("Success", "green") } 09:06
camelia star-m 2015.09: OUTPUT«fail␤»
leont star-m: my &colored2 = try { require Terminal::ANSIColor <&colored>; &colored } // sub ($, $) { "fail" }; say colored2("Success", "green")
camelia star-m 2015.09: OUTPUT«3Success␤»
leont Hmm, I though that failed too, but first fail/success was my main point
timotimo that's interesting indeed
why would a module { } around it even make a difference, since the require is inside its own { } anyway? 09:07
dalek kudo/curli: b3918c4 | (Stefan Seifert)++ | / (5 files):
Some bits of CompUnit::PrecompilationStore
 09:08
FROGGS star-m: module Foo { my &colored = try { require Terminal::ANSIColor <&colored>; &colored } }; say &colored }
camelia star-m 2015.09: OUTPUT«5===SORRY!5=== Error while compiling /tmp/45GQ5QXCcB␤Unexpected closing bracket␤at /tmp/45GQ5QXCcB:1␤------> 3 <&colored>; &colored } }; say &colored 7⏏5}␤»
FROGGS star-m: module Foo { my &colored = try { require Terminal::ANSIColor <&colored>; &colored }; say &colored }
camelia star-m 2015.09: OUTPUT«(Callable)␤»
FROGGS star-m: module Foo { my &colored = try { require Terminal::ANSIColor <&colored>; &colored } // 42; say &colored } 09:09
camelia star-m 2015.09: OUTPUT«Type check failed in assignment to '&colored'; expected 'Callable' but got 'Int'␤ in block <unit> at /tmp/KHYkjz6qUF:1␤␤»
FROGGS star-m: module Foo { my &colored = try { require Terminal::ANSIColor <&colored>; &colored }; say colored("Success", "green") }
camelia star-m 2015.09: OUTPUT«Cannot invoke this object␤ in block <unit> at /tmp/tTpd3bbieg:1␤␤»
FROGGS star-m: module Foo { my &colored = try { say 1; require Terminal::ANSIColor <&colored>; say 1; &colored }; say &colored } 09:10
camelia star-m 2015.09: OUTPUT«1␤(Callable)␤»
dalek Heuristic branch merge: pushed 40 commits to rakudo/curli by niner
FROGGS star-m: module Foo { my &colored = try { say 1; require Terminal::ANSIColor <&colored>; say 1; &colored; CATCH { default { .say } } }; say &colored }
camelia star-m 2015.09: OUTPUT«1␤Trying to import symbols &colored from 'Terminal::ANSIColor', but it does not export anything␤ in block at /tmp/wDtw_BLd82:1␤ in block <unit> at /tmp/wDtw_BLd82:1␤␤(Callable)␤»
timotimo hum
perhaps it really tries to grab Foo::Terminal::ANSIColor? 09:11
FROGGS leont: so we are unable to import from it for some weird reason
timotimo star-m: module Terminal { my &clored = try { say 1; require ANSIColor <&colored>; say 2; &colored }; say &clored
camelia star-m 2015.09: OUTPUT«5===SORRY!5=== Error while compiling /tmp/g6Qw2N7TeG␤Missing block␤at /tmp/g6Qw2N7TeG:1␤------> 3colored>; say 2; &colored }; say &clored7⏏5<EOL>␤ expecting any of:␤ postfix␤ statement end␤ statement modifier␤ …»
timotimo star-m: module Terminal { my &clored = try { say 1; require ANSIColor <&colored>; say 2; &colored }; }; say &clored
camelia star-m 2015.09: OUTPUT«5===SORRY!5=== Error while compiling /tmp/IpWH6hcFES␤Undeclared routine:␤ &clored used at line 1. Did you mean '&close'?␤␤»
timotimo star-m: module Terminal { my &clored = try { say 1; require ANSIColor <&colored>; say 2; &colored }; say &clored; }
camelia star-m 2015.09: OUTPUT«1␤(Callable)␤»
timotimo star-m: module Terminal { my &clored = try { say 1; require ANSIColor <&colored>; say 2; &colored; CATCH { .say } }; say &clored; } 09:12
camelia star-m 2015.09: OUTPUT«1␤Could not find ANSIColor in any of:␤ file#/home/camelia/.perl6/2015.09/lib␤ inst#/home/camelia/.perl6/2015.09␤ file#/home/camelia/star-2015.09/share/perl6/lib␤ file#/home/camelia/star-2015.09/share/perl6/vendor/lib␤ file#/home/camelia/star-2…»
timotimo star-m: module Terminal { my &clored = try { say 1; require Term::ANSIColor <&colored>; say 2; &colored; CATCH { .say } }; say &clored; }
camelia star-m 2015.09: OUTPUT«1␤Could not find Term::ANSIColor in any of:␤ file#/home/camelia/.perl6/2015.09/lib␤ inst#/home/camelia/.perl6/2015.09␤ file#/home/camelia/star-2015.09/share/perl6/lib␤ file#/home/camelia/star-2015.09/share/perl6/vendor/lib␤ file#/home/camelia/…»
timotimo oh derp
star-m: module Terminal { my &clored = try { say 1; require Terminal::ANSIColor <&colored>; say 2; &colored; CATCH { .say } }; say &clored; }
camelia star-m 2015.09: OUTPUT«1␤Trying to import symbols &colored from 'Terminal::ANSIColor', but it does not export anything␤ in block at /tmp/9u_ufe8fhs:1␤ in block <unit> at /tmp/9u_ufe8fhs:1␤␤Trying to import symbols &colored from 'Terminal::ANSIColor', but it does not exp…»
timotimo star-m: module Terminal { my &clored = try { say 1; require Terminal::ANSIColor; say 2; &colored; CATCH { .say } }; say &clored; }
camelia star-m 2015.09: OUTPUT«5===SORRY!5=== Error while compiling /tmp/YFOJbab8ST␤Undeclared routine:␤ &colored used at line 1␤␤»
timotimo star-m: module Terminal { my &clored = try { say 1; require Terminal::ANSIColor; say 2; say ::.keys; CATCH { .say } }; say &clored; }
camelia star-m 2015.09: OUTPUT«1␤2␤($_ __HANDLER__1)␤(Callable)␤»
FROGGS bbl & 09:13
timotimo star-m: module Terminal { my &clored = try { say 1; require Terminal::ANSIColor; say 2; say GLOBAL::.keys; CATCH { .say } }; say &clored; }
camelia star-m 2015.09: OUTPUT«1␤2␤(Terminal)␤(Callable)␤»
timotimo star-m: module Terminal { my &clored = try { say 1; require Terminal::ANSIColor; say 2; say GLOBAL::Terminal:.keys }; say &clored; }
camelia star-m 2015.09: OUTPUT«5===SORRY!5=== Error while compiling /tmp/g7m_EcGMq5␤Confused␤at /tmp/g7m_EcGMq5:1␤------> 3:ANSIColor; say 2; say GLOBAL::Terminal:7⏏5.keys }; say &clored; }␤ expecting any of:␤ colon pair␤»
timotimo star-m: module Terminal { my &clored = try { say 1; require Terminal::ANSIColor; say 2; say GLOBAL::Terminal::.keys }; say &clored; }
camelia star-m 2015.09: OUTPUT«1␤2␤(ANSIColor)␤Type check failed in assignment to '&clored'; expected 'Callable' but got 'Bool'␤ in block <unit> at /tmp/6mKCxHnDpp:1␤␤»
timotimo star-m: module Terminal { my &clored = try { say 1; require Terminal::ANSIColor; say 2; say GLOBAL::Terminal::ANSIColor::.keys }; say &clored; }
camelia star-m 2015.09: OUTPUT«1␤2␤(EXPORT)␤Type check failed in assignment to '&clored'; expected 'Callable' but got 'Bool'␤ in block <unit> at /tmp/exetbPKBd0:1␤␤»
timotimo star-m: module Terminal { my &clored = try { say 1; require Terminal::ANSIColor; say 2; say GLOBAL::Terminal::ANSIColor::EXPORT::.keys }; say &clored; }
camelia star-m 2015.09: OUTPUT«1␤2␤(DEFAULT ALL)␤Type check failed in assignment to '&clored'; expected 'Callable' but got 'Bool'␤ in block <unit> at /tmp/NciOd4sWsU:1␤␤»
timotimo star-m: module Terminal { my &clored = try { say 1; require Terminal::ANSIColor; say 2; say GLOBAL::Terminal::ANSIColor::EXPORT::ALL::.keys }; say &clored; }
camelia star-m 2015.09: OUTPUT«1␤2␤(&RESET &BOLD_OFF &UNDERLINE_OFF &UNDERLINE &uncolor &color &colored &colorstrip &BOLD &INVERSE &INVERSE_OFF &colorvalid)␤Type check failed in assignment to '&clored'; expected 'Callable' but got 'Bool'␤ in block <unit> at /tmp/nHBxFpLQP7:1␤␤»
timotimo star-m: module Terminal { my &clored = try { say 1; require Terminal::ANSIColor; say 2; GLOBAL::Terminal::ANSIColor::EXPORT::ALL::colored }; say &clored; }
camelia star-m 2015.09: OUTPUT«1␤2␤(Callable)␤»
timotimo star-m: module Terminal { my &clored = try { say 1; require Terminal::ANSIColor; say 2; GLOBAL::Terminal::ANSIColor::EXPORT::ALL::colored }; clored("fo", "bar") } 09:14
camelia star-m 2015.09: OUTPUT«1␤2␤Cannot invoke this object␤ in block <unit> at /tmp/ZNMNtHxZkP:1␤␤»
timotimo interesting
09:14 iH2O joined
timotimo star-m: module Terminal { my &clored = try { say 1; require Terminal::ANSIColor; say 2; GLOBAL::Terminal::ANSIColor::EXPORT::ALL::colored("foo", "bar") };} 09:14
camelia star-m 2015.09: OUTPUT«1␤2␤»
timotimo star-m: module Terminal { my &clored = try { say 1; require Terminal::ANSIColor; say 2; GLOBAL::Terminal::ANSIColor::EXPORT::ALL::colored("foo", "bar").say };}
camelia star-m 2015.09: OUTPUT«1␤2␤»
timotimo star-m: module Terminal { my &clored = try { say 1; require Terminal::ANSIColor; say 2; &GLOBAL::Terminal::ANSIColor::EXPORT::ALL::colored }; say clored("foo", "bar")}
camelia star-m 2015.09: OUTPUT«1␤2␤Invalid attribute name 'bar'␤ in sub color at /home/camelia/star-2015.09/share/perl6/lib/Terminal/ANSIColor.pm:45␤ in sub colored at /home/camelia/star-2015.09/share/perl6/lib/Terminal/ANSIColor.pm:51␤ in block <unit> at /tmp/WppoXrATXs:1␤␤»
timotimo star-m: module Test { my &clored = try { say 1; require Terminal::ANSIColor; say 2; &GLOBAL::Terminal::ANSIColor::EXPORT::ALL::colored }; say clored("foo", "bar")} 09:15
camelia star-m 2015.09: OUTPUT«1␤2␤Invalid attribute name 'bar'␤ in sub color at /home/camelia/star-2015.09/share/perl6/lib/Terminal/ANSIColor.pm:45␤ in sub colored at /home/camelia/star-2015.09/share/perl6/lib/Terminal/ANSIColor.pm:51␤ in block <unit> at /tmp/CVisnqB2ik:1␤␤»
timotimo star-m: module Test { my &clored = try { say 1; require Terminal::ANSIColor <&colored>; say 2; &GLOBAL::Terminal::ANSIColor::EXPORT::ALL::colored eqv &colored }; say clored("foo", "bar")}
camelia star-m 2015.09: OUTPUT«1␤Cannot invoke this object␤ in block <unit> at /tmp/T3OZncUEii:1␤␤»
09:16 iH2O left
timotimo okay, so here's a little look at what this code does internally 09:17
also, a few short lines to give a visual differentiation between all the spam above there and what's coming up 09:18
short
short 2
short 3
===========================
what require does under the hood:
m: sub testsub() { say CALLER::OUR::.keys }; testsub()
camelia rakudo-moar 75ac71: OUTPUT«()␤»
timotimo m: sub testsub() { say CALLER::OUR::.keys }; module Foo { testsub() }
camelia rakudo-moar 75ac71: OUTPUT«()␤»
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timotimo seems like the load_module method of CUR (the first thing a require statement translates to) puts things into GLOBALish (getcurhllsym("GLOBAL")) 09:20
and then REQUIRE_IMPORT looks in CALLER::OUR::.WHO 09:21
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timotimo so perhaps that's where the mismatch happens? 09:22
09:22 Ven left
timotimo is really not deep in the whole package/namespace/importation/... business 09:25
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Ven what a busy morning :) 09:39
timotimo sorry about that 09:41
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dalek kudo/curli: cf4233a | (Stefan Seifert)++ | src/core/ (5 files):
Set up the whole chain of CompUnit::Repositorys

  $*REPO is now the HEAD of the whole list of repositories.		 09:44
09:47 iH2O left
FROGGS nine++ 09:49
timotimo more jokes about "ten"! 09:50
lizmat if we're going to look at io, I think $!ins is a fossil 09:52
timotimo is "ins" supposed to just be the plural of "in"? 09:53
lizmat now that we have fast .kv methods, I don't think we need the overhead of updating $!ins all of the time
no, it's the number of lines read on a handle
timotimo sorry, i was refering to the name only
whether it's just "the number of in'd things" or "Input Number of Separators" or something 09:54
lizmat I have no idea, I didn't come up with the name 09:55
timotimo we have an "outs" variant of that, too, don't we?
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baest How do you async reads from $*IN? If I put it in a thread I get "Unhandled exception: Tried to read() on a socket from outside its originating thread" 10:09
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timotimo aye, that's currently problematic; you can work around it by starting the digestion thread and sending lines from $*IN through a Channel to it 10:10
baest timotimo: ah yeah, I was thinking that it was NYI. Thanks 10:11
timotimo: How would I do the channel thing?
timotimo on the other hand .. why is it giving that error for $*IN? 10:13
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timotimo i know we've run into some limitations with libuv when it comes to sockets, but i think the std handles are sufficiently un-socket-like for this purpose 10:13
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timotimo hoelzro: care to comment on this? why did you put the same check you've put into syncsocket.c into syncstream.c as well? 10:14
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dalek ast: 25daf16 | usev6++ | S12-attributes/clone.t:
Add tests for RT #125109
 10:29
synbot6 Link: rt.perl.org/rt3/Public/Bug/Display...?id=125109
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lizmat timotimo: no "outs" variant that I know of 10:35
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dalek kudo/nom: 6b8da28 | lizmat++ | src/core/IO/Handle.pm:
Remove fossil
 10:36
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dalek kudo/nom: 77eb4c2 | lizmat++ | src/core/IO/Handle.pm:
Prevent warnings
 10:44
timotimo OK 10:48
dalek kudo/nom: cd77669 | lizmat++ | src/core/ (2 files):
Move method comb prototype
 10:54
ast: 837d940 | lizmat++ | S16-io/words.t:
Remove paranoid test
 10:55
timotimo yay, booting into a new kernel 10:56
wow, what an upgrade 10:58
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RabidGravy Off out for a bit, that's enough travis-ci for the time being 11:04
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timotimo it seems like i can't build nqp-j on my laptop at the mment 11:14
m: my int @foo; @foo.push: 1; say @foo 11:15
camelia rakudo-moar 6b8da2: OUTPUT«1␤»
timotimo m: my int @foo; @foo.unshift: 1; say @foo
camelia rakudo-moar 6b8da2: OUTPUT«1␤»
timotimo m: my CArray[int] $foo; $foo.push: 1; say $foo
camelia rakudo-moar 6b8da2: OUTPUT«5===SORRY!5===␤Type 'CArray' is not declared. Did you mean any of these?␤ Array␤ array␤␤at /tmp/ba26jWiJdE:1␤------> 3my CArray7⏏5[int] $foo; $foo.push: 1; say $foo␤Malformed my␤at /tmp/ba26jWiJdE:1␤------> 3my7⏏5 CAr…»
timotimo m: use NativeCall; my CArray[int] $foo; $foo.push: 1; say $foo
camelia rakudo-moar 6b8da2: OUTPUT«Cannot call push(IntTypedCArray[int]: Int); none of these signatures match:␤ (Any:U \SELF: |values is raw)␤ in block <unit> at /tmp/dn8BSM0AwI:1␤␤»
11:16 TEttinger left
timotimo hm, at some point i was working on CArray and push and elems and such ... problem is it can potentially be refering to an array we don't know the size of 11:16
or something like that?
11:16 firstdayonthejob left
lizmat tries to build on JVM 11:18
hoelzro timotimo: regarding sockets, you can't read from a socket on thread B if thread A created that socket and A !=:= B
timotimo getting an assortment of different problems
hoelzro: i know about that part
hoelzro: how come that error also appears for $*IN? 11:19
hoelzro iirc, it suffers from the same problem
timotimo god fucking damnit
lizmat bless you! 11:20
hoelzro yeah, it's annoying
hang on, lemme dig up the libuv thread
groups.google.com/forum/#!topic/li...OOTAS2zV_U 11:21
the idea behind the error was that it's better for a user to see "you can't do this right now", rather than always silently get 0 size reads
timotimo wellllll, we want to replace libuv stuff with direct stdIO stuff for synchronous stuff anyway 11:22
this just fuels the fire a bit more 11:24
just like tadzik's decision to remove precompilation from panda ;)
hoelzro see also github.com/MoarVM/MoarVM/issues/165
dalek kudo/curli: 9e8ffaa | (Stefan Seifert)++ | src/core/CompUnitRepo/Local/Installation.pm:
Fix next-repo initialization in CompUnitRepo::Local::Installation
kudo/curli: 278913e | (Stefan Seifert)++ | src/core/CompUnit (2 files):
Delegate to next-repo if we find no candiate for a module
nine And with that I'm off to give some flight lessons :) 11:25
timotimo \o/
thank you for your work on this, nine
hoelzro timotimo: oh, really? this is the first I'm hearing of that, but I'd be lying if I said I'd miss libuv
lizmat nine++
hoelzro nine: enjoy!
timotimo we'll keep libuv for asynchronous I/O of course
hoelzro yeah 11:26
timotimo we always explicitly do our async I/O on that one single "for async I/O" thread anyway
hoelzro true, so there's no need to worry about this bug there
timotimo in that case, that thread can (probably already does) own all the things
hoelzro (since it's the uv_loop_t that's really the problem, not threads) 11:27
yes
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timotimo does htmlify use Inline::Python for pygments at the moment? 11:29
tadzik nine: yay, that worked! 11:30
yoleaux 07:53Z <nine> tadzik: The answer to your question is probably import signal; signal.signal(signal.SIGINT, signal.SIG_DFL) # because Python is so user friendly
hoelzro I thought it did, but I haven't checked in a while 11:31
11:31 BenGoldberg left
ShimmerFairy tadzik: by chance were you trying to use any signals? :) 11:31
tadzik ShimmerFairy: yes indeed :) 11:32
timotimo oh hey tadzik
tadzik I mean, I was not
11:32 tokuhiro_ joined
tadzik but I have a Perl code that uses Inline::Python 11:32
lizmat just control-C perhaps ?
tadzik and when it does, Python captures SIGINT
timotimo you're missing from a certain perl6 off-topic channel :)
11:32 tokuhirom left
tadzik and I can't ^C out of it 11:32
timotimo: oh, correct!
timotimo tadzik: do you know what the current state of the qt profiler viewer is? 11:36
tadzik timotimo: I haven't touched it since the QA hackathon
11:36 tokuhiro_ left
timotimo OK 11:36
tadzik I think sergot_ might have though
11:36 Ven joined
tadzik I was thinking to try moritz's profile file on it 11:36
11:37 lucs left
timotimo yeah, i'm on the way to do that right now 11:38
11:39 lucs joined
timotimo ah, yeah, "malformed input file" 11:40
maybe we ought to move from QJSON to a different thing
QJsonDocument – "document too large" (looks like the max size is artificially capped at 1 << 27 bytes)
Boost.PropertyTree – takes up 30 GB RAM and then segfaults
libjson – takes up a few gigs of RAM and then segfaults
that looks so promising!
maybe i should just throw the json file into an ad-hoc postgres database and use its json operators on it for some analysis %) 11:42
maybe a good first step would be to figure out which parts of that document are how big and such 11:43
timotimo tries to use json_pp on it to be able to see its structure 11:48
hmm. json_pp is chewing CPU time, but apparently not memory ... and the result file is still empty 11:52
hoelzro timotimo: how big is this JSON file? 11:54
timotimo just a hundred megs 11:55
hoelzro ok, so not huge, really 11:56
interesting
12:00 Ven left 12:05 Ven joined
timotimo ah, json_pp is very, very, very slowly using more ram 12:05
dalek kudo/nom: e8d7577 | lizmat++ | src/core/ (4 files):
Introduce IO::Path/Handle.comb

You can comb for:
  - all characters (.comb or .comb(""))
  - strings (.comb("foo"))
  - blocks of characters (.comb(1024))
  - regexes (.comb(/.e./)		 12:21
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moritz lizmat: same feedback as with .split; I don't like it on IO::Path, because that's a rather stringy type for me 12:23
lizmat same question as before: how would you call it then ? 12:24
moritz .IO.comb
lizmat FWIW, I tried several hours to rename it yesterday
then .IO should not give an IO::Path 12:25
it's on IO::Path *because* I want .IO.comb to work!
m: dd "foo".IO
camelia rakudo-moar cd7766: OUTPUT«IO::Path $var = q|foo|.IO(:SPEC(IO::Spec::Unix),:CWD</home/camelia>)␤»
moritz lizmat: I think I lost the handle on the distinction between IO::Path and IO::Handle
lizmat well, it's a mess 12:26
and what I tried to fix with newio
:-(
atm, .IO gives an IO::Path, and that has an .open method
which returns an IO::Handle 12:27
however, you can also do IO::Handle.new
which gives you an unopened IO::Handle
very useful and consistent :-(
pink_mist $*IN and $*OUT, they're IO::Handles right? not IO::Paths?
lizmat IO::Handle's yes
m: dd $*IN 12:28
camelia rakudo-moar cd7766: OUTPUT«IO::Handle $var = IO::Handle.new(path => IO::Special.new(what => "<STDIN>"), ins => 0, chomp => Bool::True)␤»
pink_mist ah, nice
lizmat so yes, you can .split and .comb on $*IN
12:28 pmurias left, tokuhirom joined, Ven left, pefpefpef joined
lizmat m: dd $*IN.split("") 12:29
camelia rakudo-moar cd7766: OUTPUT«Seq $var = ("", "C", "é", "a", "d", " ", "s", "l", "á", "n", " ", "a", "g", " ", "s", "l", "é", "i", "b", "h", "t", "e", " ", "m", "a", "o", "r", "g", "a", " ", "C", "h", "o", "n", "t", "a", "e", " ", "D", "h", "ú", "n", " ", "n", "a", " ", "n", "G", "…»
pink_mist wut
lizmat m: dd $*IN.say
camelia rakudo-moar cd7766: OUTPUT«Failed to write bytes to filehandle: bad file descriptor␤ in block <unit> at /tmp/oOquwjUHoJ:1␤␤»
pink_mist that looked like irish
lizmat m: dd $*IN.lines[0].say
camelia rakudo-moar cd7766: OUTPUT«Céad slán ag sléibhte maorga Chontae Dhún na nGall␤Bool $var = Bool::True␤»
pink_mist or possibly welsh
12:30 pefpefpef left
lizmat moritz knows 12:30
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lizmat perhaps .IO should just return an IO object 12:32
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lizmat it would at least make sense from coercer consistency point of view 12:32
brb
12:32 telex joined, tokuhirom left 12:34 Ven joined
ilmari Irish, according to google translate 12:35
"Farewell to the noble mountains of Donegal" 12:36
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flussence wait, is .IO.comb(1024) a lazy-list version of the perl5 «stuff while $fh->read(my $buf, 1024)»? ’cause that'd be awesome. 12:43
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flussence m: $*IN.comb(8)[^5].perl.say 12:46
camelia rakudo-moar cd7766: OUTPUT«Use of uninitialized value of type Any in string context␤Any of .^name, .perl, .gist, or .say can stringify undefined things, if needed. in block <unit> at /tmp/ySA8WoKQX5:1␤Cannot call comb(IO::Handle, Int); none of these signatures match:␤ in blo…»
lizmat flussence: yeah, that would be it 12:49
flussence lizmat++ # those mandatory tempvars always bothered me :)
lizmat also need to wait for camelia to catch up
hmmm.. I suddenly realize .comb(size) can be made simpler 12:51
duh
flussence aww, it doesn't work on binary files :( 12:54
pink_mist will always think of the ^5 notation as 'high-five' 12:56
(it falls apart a bit when the number isn't 5, but that's irrelevant :P)
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psch .botsnack 13:07
yoleaux :D
synbot6 om nom nom
yoleaux 08:59Z <FROGGS> psch: 'control exception without handler' is more about CX::WARN etc I think
psch .tell FROGGS yeah, they are. 'control exception without handler' is the new "Unknown control exception type %d" 13:08
yoleaux psch: I'll pass your message to FROGGS.
psch .tell FROGGS apparently Exception.print_control doesn't deal correctly with compound control exception, e.g. 4104 is redo_label, but print_control only does == nqp::const::CONTROL_*, nothing bitwise 13:10
yoleaux psch: I'll pass your message to FROGGS.
13:10 telex joined
dalek kudo/nom: 2f4bfd8 | lizmat++ | src/core/IO/Handle.pm:
Implement .comb(size) lazier

  flussence++ for inspiration		 13:10
psch .tell FROGGS of course, those probably still shouldn't arrive there in the first place but properly control...
yoleaux psch: I'll pass your message to FROGGS.
lizmat cycling&
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FROGGS psch: I will look into this this evening 13:29
yoleaux 13:08Z <psch> FROGGS: yeah, they are. 'control exception without handler' is the new "Unknown control exception type %d"
13:10Z <psch> FROGGS: apparently Exception.print_control doesn't deal correctly with compound control exception, e.g. 4104 is redo_label, but print_control only does == nqp::const::CONTROL_*, nothing bitwise
13:10Z <psch> FROGGS: of course, those probably still shouldn't arrive there in the first place but properly control...
13:29 telex left
psch FROGGS: i'm already looking... :s 13:29
FROGGS okay :o)
I'll pick something else then 13:30
psch UnwindExceptions would be my suggestion :) 13:31
it's something regex-y i think
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psch r: my $data = "f fo foo fooo foooo fooooo foooooo"; for 1..7 { say $data.match( /fo+/, :nth($_)) } # curiously works on camelia, but bails locally 13:33
camelia rakudo-{moar,jvm} cd7766: OUTPUT«｢fo｣␤｢foo｣␤｢fooo｣␤｢foooo｣␤｢fooooo｣␤｢foooooo｣␤Nil␤»
psch might be because of the three tests before that are supposed to throw.. vOv 13:34
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psch r: my $data = "f fo foo fooo foooo fooooo foooooo"; try $data.match(/fo; for 1..7 { say $data.match( /fo+/, :nth($_)) } # curiously works on camelia, but bails locally 13:36
argh
camelia rakudo-{moar,jvm} cd7766: OUTPUT«5===SORRY!5===␤Unrecognized regex metacharacter ; (must be quoted to match literally)␤at /tmp/tmpfile:1␤------> 3ooo fooooo foooooo"; try $data.match(/fo7⏏5; for 1..7 { say $data.match( /fo+/, :nt␤Unable to parse regex; couldn't fin…» 13:37
psch r: use Test; my $data = "f fo foo fooo foooo fooooo foooooo"; try $data.match(/fo+/, :nth(-1)); try $data.match(/fo+/, :nth(-2)); for 1..7 { say $data.match( /fo+/, :nth($_)) } # there is some weird
13:37 tokuhiro_ left
camelia rakudo-{moar,jvm} cd7766: OUTPUT«｢fo｣␤｢foo｣␤｢fooo｣␤｢foooo｣␤｢fooooo｣␤｢foooooo｣␤Nil␤» 13:37
psch ah, nevermind, just jvm being bogged down then 13:38
anyway, i'll leave that lying around now :P
FROGGS :P 13:39
timotimo json_pp is at 413 megabytes now 13:41
13:41 telex left
psch r: use Test; my $str = "abbb"; my regex rx { ab+ }; ok( $str ~~ m:ex:x(2)/<rx>/, ":x and :ex" ) # this is definitely suspect :P 13:42
camelia ( no output )
..rakudo-moar cd7766: OUTPUT«ok 1 - :x and :ex␤»
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psch hm, actually UnwindException and the control exception stuff might both come down to the nqp::handle implementation... 13:51
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dalek ast: 0e4520a | usev6++ | S03-metaops/hyper.t:
Add tests for RT #125265
 14:08
synbot6 Link: rt.perl.org/rt3/Public/Bug/Display...?id=125265
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suman anyone working on matplotlib API for perl 6 14:19
masak don't think so -- go for it :)
suman I mean matplotlib(python)
moritz currently available via Inlne::Python 14:21
masak suman: are you familar with Inline::...what moritz said.
14:21 softmoth joined, Ven left
timotimo 2h, 40m almost 14:26
14:26 softmoth left
timotimo will the document ever be pretty-printed? 14:26
14:29 tokuhirom joined 14:32 WizJin left 14:34 tokuhirom left
suman masak no idea how to use Inine::Python Any tutorial? 14:35
14:36 Ven joined
suman Perl 6 and even perl 5 documentation is not elegant as python. Any plan to change? Let's change it for good. 14:36
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moritz suman: that is very much a matter of type 14:38
*taste
suman: I, for one, don't find string literals in void context very elegant 14:39
suman: much less the lack of an agreed-upon syntax inside these string literals
suman Perl 6 language, its concepts are yes powerful and new syntax is great. But we need better docummentation and good tutorials. 14:43
Ven that we do need, but we also need to give it a little time :-). 14:44
suman There are MOOC platforms like coursera, edx, udacity. Anyone having plans to deliver one course through those platforms on PErl 6. I would love to see one.
Ven suman: if you have feedback, it's greatly appreciated (you can ping me for the learnxiny)
suman Ven Yeah I went through learnxiny, Learned a lot on perl 6 on the site. Thanks!! :-) 14:46
Ven .ask zoffix tell me when I can start treating github.com/adambard/learnxinyminut...ssues/1390
yoleaux Ven: I'll pass your message to zoffix.
Ven er, is it zoffixnet?
psch .seen Zoffix 14:47
yoleaux I saw Zoffix 22 Oct 2015 13:21Z in #perl6: <Zoffix> Ah :)
suman Indeed I very much like the new perl 6 page. Its much elegant.
psch .seen ZoffixWork
yoleaux I saw ZoffixWork 9 Oct 2015 19:49Z in #perl6: <ZoffixWork> Hey. What's a usecase for ENTER phaser? Wound't code still run "every time you enter the block"?
psch Ven: those two most often i think
ugexe whats a better way to split an array of strings into kv of a hash? 14:48
my @a = "aaa=bbb","ccc=ddd"; my %h = @a.map.split("=", 2); $x => $y });
moritz suman: well, I do agree that we need better docs. Contributions are very welcome.
ugexe er
dalek osystem: c47df97 | retupmoca++ | META.list:
Add Find::Bundled

A temporary replacement for %?RESOURCE
  github.com/retupmoca/P6-Find-Bundled
ugexe my @a = "aaa=bbb","ccc=ddd"; my %h = @a.map({ .split("=", 2); $x => $y });
moritz m: my @a = "aaa=bbb","ccc=ddd"; my %h = @a.map({ [Z=>] .split('=', 2)})
camelia ( no output )
moritz m: my @a = "aaa=bbb","ccc=ddd"; my %h = @a.map({ [Z=>] .split('=', 2)}); say %h.perl
camelia rakudo-moar cd7766: OUTPUT«{"aaa\tbbb" => (:ccc("ddd"),).Seq}␤»
moritz not quite :( 14:50
ugexe darn
moritz m: my @a = "aaa=bbb","ccc=ddd"; my %h = flat @a.map({.split('=', 2)}); say %h.perl
camelia rakudo-moar cd7766: OUTPUT«{:aaa("bbb"), :ccc("ddd")}␤»
mantovani guys
moritz m: my @a = "aaa=bbb","ccc=ddd"; my %h = @a.map({[=>] .split('=', 2)}); say %h.perl
camelia rakudo-moar cd7766: OUTPUT«{:aaa("bbb"), :ccc("ddd")}␤»
ugexe nice
14:51 cognominal left
psch m: my @a = "aaa=bbb", "ccc=ddd"; my %h = @a.map({ |(.split("=", 2)) }); say %h.perl 14:51
camelia rakudo-moar cd7766: OUTPUT«{:aaa("bbb"), :ccc("ddd")}␤»
psch one char longer, though that's whitespace 14:52
and explicit pairing is probably cleaner
moritz oh, are you golfing? :-)
mantovani how is this "perl -nE 's/bytes/MB/g;s#(\d+)(\s+MB)#&{sub{(shift)/1024/1024}}($1) . $2#ge;print'" in Perl 6 ?
ugexe thanks moritz, didnt know about [=>]
psch moritz: nah, i just wanted to check if %h = |$list actually DWIMs :s
moritz m: my @a = "aaa=bbb","ccc=ddd"; my %h = | @a.map(*.split('=', 2)); say %h.perl
camelia rakudo-moar cd7766: OUTPUT«{"aaa bbb" => ("ccc", "ddd").Seq}␤»
psch m: my @a = "aaa=bbb", "ccc=ddd"; my %h = @a.map(|*.split("=", 2)); say %h.perl 14:53
camelia rakudo-moar cd7766: OUTPUT«{:aaa("bbb"), :ccc("ddd")}␤»
ugexe m: my @a = "aaa=bbb","ccc=ddd"; my %h = @a>>.split("=", 2)>>.hash; say %h.perl 14:54
camelia rakudo-moar cd7766: OUTPUT«{:aaa("bbb"), :ccc("ddd")}␤»
psch vOv 14:55
i have bytecode to inspect...
suman where can I find resources for regular expression and grammar with perl 6? Easy to follow. 14:58
Hey anyone knows good perl 6 IDE?
masak Emacs with cperl-mode is pretty nice. 14:59
ugexe ive been using your huffman tree blog post btw working on an hpack implementation moritz. it is appreciated
masak vim with perl6.vim is not bad either.
15:03 zakharyas left
flussence m: say $_ => S[(\d+) \s+ bytes] = "{$0 / (1+<20)} MiB" given (^10_000_000 .pick)~' bytes'; 15:05
camelia rakudo-moar cd7766: OUTPUT«2811001 bytes => 2.68077946 MiB␤»
mantovani flussence: thank you!
flussence well that's one way...
15:11 ben left
raiph suman: www.reddit.com/r/perl6/comments/39...of_perl_6/ 15:13
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kmel m: say 'hola!' 15:13
camelia rakudo-moar cd7766: OUTPUT«hola!␤»
jdv79 how can Failures be unhandled when i Booled them? 15:17
moritz jdv79: example? 15:18
jdv79 i'd have to try to golf it
moritz m: sub f() { fail "foo }; unless my $x = f() { say $x }
camelia rakudo-moar cd7766: OUTPUT«5===SORRY!5=== Error while compiling /tmp/u8mxCDekTU␤Variable '$x' is not declared␤at /tmp/u8mxCDekTU:1␤------> 3sub f() { fail "foo }; unless my 7⏏5$x = f() { say $x }␤»
moritz m: sub f() { fail "foo" }; unless my $x = f() { say $x }
camelia rakudo-moar cd7766: OUTPUT«foo␤ in sub f at /tmp/yf5XaVK7qm:1␤ in block <unit> at /tmp/yf5XaVK7qm:1␤␤»
moritz m: sub f() { fail "foo" }; unless my $x = f() { say $x; say "alive" }
camelia rakudo-moar cd7766: OUTPUT«foo␤ in sub f at /tmp/CvyaVpvWOe:1␤ in block <unit> at /tmp/CvyaVpvWOe:1␤␤alive␤»
flussence notices «say (1,1,*+*...*)[100000]» runs about 250x faster than a recursive equivalent with «is cached» 15:20
jdv79 its a warning from DESTROY. can that be forced? 15:21
flussence (I get the feeling cached functions don't perform very well, since they .gist their entire arglist on each invocation)
zostay m: class { has IO::Spec:D $.spec = $*SPEC }.new 15:26
yoleaux 22 Oct 2015 22:11Z <psch> zostay: some research suggests C# has a ?. operator, which means "if the LHS is not null, call the RHS as method on it"
camelia rakudo-moar cd7766: OUTPUT«Type check failed in assignment to $!spec; expected IO::Spec:D but got IO::Spec::Unix␤ in block <unit> at /tmp/0fVqCGWoIb:1␤␤»
yoleaux 22 Oct 2015 22:13Z <psch> zostay: the semantic difference, as i see it, is that we can have methods that work as class methods or instance methods but don't (neccessarily) know before we try to dispatch
22 Oct 2015 22:14Z <psch> zostay: whereas C# can say "ok this is{,n't} always an instance method" during compile time
zostay m: $*SPEC.perl.say 15:28
camelia rakudo-moar cd7766: OUTPUT«IO::Spec::Unix␤»
zostay oh... i see
bartolin m: my @result = gather { take "foo=bar".split("=") }; say @result.perl # RT #125401 15:29
synbot6 Link: rt.perl.org/rt3/Public/Bug/Display...?id=125401
camelia rakudo-moar cd7766: OUTPUT«This Seq has already been iterated, and its values consumed␤ in block <unit> at /tmp/B6_YVZjFwB:1␤␤»
bartolin m: my @result = flat gather { take "foo=bar".split("=") }; say @result.perl
camelia rakudo-moar cd7766: OUTPUT«["foo", "bar"]␤»
jdv79 ithink it might be something about multiple failures in a row 15:30
bartolin ^^ is there a better way to get that result from gather/take?
jdv79 :(
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jdv79 i think i'll ignore that one - somehting about calling .new on a failure 15:33
coded around it
is it possible to alias pkgs? let's say i have Foo and Foo2 and i want to try swapping Foo2 in for Foo. 15:36
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flussence star: use MIME::Base64:name<b64>; # specced in S11 15:39
camelia ( no output )
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dalek ast: de87d79 | usev6++ | S04-statements/gather.t:
Add test for RT #125401
 15:54
synbot6 Link: rt.perl.org/rt3/Public/Bug/Display...?id=125401
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timotimo o/ 16:40
json_pp has been running for 3:16h now and is at 526 megs of ram 16:41
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timotimo still nothing printed to the output file at all ... 16:42
FROGGS_ timotimo: what are you doing?
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timotimo i'm trying to pretty-print the result of the htmlify --sparse=200 16:43
the --profile result, that is
moritz timotimo: try json_xs instead 16:44
timotimo oh?
FROGGS_ _pp is Pure Perl™ 16:45
timotimo i thought it was "PrettyPrint"
until now i didn't even know it's a perl thing
yeah, that's already finished now
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FROGGS_ ohh, maybe it is pretty print? 16:47
where do you got it from?
timotimo wellllllll
given the _xs thing finished in about 1.5s and the other one has been running for hours ..
it's probably PurePerl vs XS
moritz it is
json_{pp,xs} are command line tools whose default action is to pretty-print, but iirc other actions are available 16:48
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moritz it can convert to Data::Dumper format, for example 16:48
timotimo a potentially noticable amount of data could probably be saved by only outputting things with non-default values
"allocations": [] - for example
and all the : 0 ones, too 16:49
RabidGravy yeah "use JSON::PP ();"
timotimo those are much less dangerous to remove than the allocations array
psch r: A: for 1 { for 1 { last A } } 16:54
camelia ( no output )
..rakudo-jvm cd7766: OUTPUT«===SORRY!===␤control exception without handler␤»
psch j: A: for 1 { for 1 { last A }; CONTROL { default { } } } # but also this
camelia ( no output )
psch so far i'm thinking the outer block just doesn't get the catch(ControlException) stuff codegen'd...
the bytecode is really not transparent at all, unfortunately 16:55
thowe So, I saw that a new version of rakudo came out within the last couple of days... How do I tell Rakudobrew to upgrade to that?
timotimo you can just "rakudobrew build moar" again to get a bleeding-edge-fresh version 16:56
alternatively i believe you can "rakudobrew build moar 2015.10" to get the exact release version
psch timotimo: from the source it looks like the second argument to build is understood as a branch 16:58
timotimo: origin/2015.10 doesn't work here, at least
oh, but there's an eval around and a rev-parse
psch looks what git rev-parse means... 16:59
timotimo that'll resolve branch names, tag names, special things like master@{last week} or master^5
IIUC
psch hmm 17:00
well, git rev-parse -q --verify origin/2015.10 returns with exitcode 1
so i think that means the run call fails and it doesn't get set to origin/2015.10
so it should just work..?
s/get// 17:01
kmel how do you remove an element from an array? 17:03
and return the new array 17:04
some like push() but in reverse
timotimo it should probably not be "origin/2015.10", though? 17:05
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timotimo pop is the opposite of push 17:05
and shift is the opposite of unshift 17:06
psch timotimo: that's what i'm saying. github.com/tadzik/rakudobrew/blob/...obrew#L363
timotimo m: my @arr = 1,2, 3, 4; @arr.push("pushed"); @arr.unshift("unshifted"); say @arr
camelia rakudo-moar cd7766: OUTPUT«[unshifted 1 2 3 4 pushed]␤»
psch timotimo: the run call gets a 1, which i suspect means git says "that's not valid"
timotimo ah
kmel timotimo: pop Removes and returns the last item from the array. Fails for an empty array.
timotimo m: say (my @).pop 17:07
camelia rakudo-moar cd7766: OUTPUT«Cannot pop from an empty Array␤ in block <unit> at /tmp/Vc4gSnRZD0:1␤␤Actually thrown at:␤ in block <unit> at /tmp/Vc4gSnRZD0:1␤␤»
kmel i want to remove the last item but return the modified array.
is there a sub for it?
psch kmel: .slice
or slice notation itself, of course 17:08
both work with elements somewhere in the middle, too, in contrast to pop and unshift
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kmel psch: can you give me an example? 17:09
i can't find anything on slice in the docs 17:10
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timotimo 5638277 2.1G -rw-r--r--. 1 timo timo 2.0G Oct 24 18:45 pretty_printed_htmlify_profile_xs.json 17:11
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RabidGravy kmel, doc.perl6.org/routine/splice#class_List splice 17:12
psch oh
RabidGravy m: Array.slice
camelia rakudo-moar cd7766: OUTPUT«Method 'slice' not found for invocant of class 'Array'␤ in block <unit> at /tmp/Kv3AdnURNc:1␤␤»
RabidGravy m: Array.splice 17:13
camelia rakudo-moar cd7766: OUTPUT«Cannot call splice(Array: ); none of these signatures match:␤ (Array:D \SELF: :$SINK, *%_)␤ (Array:D $: $offset = { ... }, $size = { ... }, @values?, :$SINK, *%_)␤ (Array:D $: $offset = { ... }, $size = { ... }, **@values, :$SINK, *%_)␤ i…»
psch right, slice is the subscript notation
RabidGravy just checking ;-)
psch m: my @a = ^10; @a[0..4, 6..9].flat.perl.say
camelia rakudo-moar cd7766: OUTPUT«(0, 1, 2, 3, 4, 6, 7, 8, 9).Seq␤»
timotimo the slimmed down json is only 72 megabytes rather than 97 megabytes
psch m: my @a = ^10; say |@a[^* (-) 5] # was my original example
camelia rakudo-moar cd7766: OUTPUT«9␤»
psch but something is weird there :P
m: say ^10 (-) 5 17:14
camelia rakudo-moar cd7766: OUTPUT«set(9, 7, 8, 4, 3, 6, 1, 0, 2)␤»
psch m: say (^10 (-) 5).perl
camelia rakudo-moar cd7766: OUTPUT«set(9,7,8,4,3,6,1,0,2)␤»
psch m: say (^10 (-) 5).keys
camelia rakudo-moar cd7766: OUTPUT«(9 7 8 4 3 6 1 0 2)␤»
psch m: say (^10 (-) 5).keys.sort
camelia rakudo-moar cd7766: OUTPUT«(0 1 2 3 4 6 7 8 9)␤»
psch m: my @a = ^10; say |@a[(^* (-) 5).keys.sort] # was my original example
camelia rakudo-moar cd7766: OUTPUT«012346789␤»
psch oh, it works too
must've done something weird :)
unfortunate that we need the .keys.sort, would be a cute linenoise idiom otherwise :P 17:15
timotimo but i think there's still a tiny bit of junk left that i can throw out
psch m: say Set ~~ Iterable 17:16
camelia rakudo-moar cd7766: OUTPUT«False␤»
psch ah, that's why it doesn't work without .keys.sort
i guess that makes sense, Sets aren't order and thus can't really be iterated 17:17
otoh, hashes aren't ordered either...
m: say Hash ~~ Iterable
camelia rakudo-moar cd7766: OUTPUT«True␤»
kmel so pop and shift remove the first and last elements of an array. 17:19
what if i want to remove a element in the middle?
psch *last and first
unless you're chiasmusing
kmel: .splice or subscript
kmel sorry *last and first
psch kmel: it depends what exactly you want, actually 17:23
kmel: splice modifies in-place, a subscript returns the elements fitting the subscript
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psch m: my @a = ^10; say @a.splice(^5); say @a 17:29
camelia rakudo-moar cd7766: OUTPUT«[5 6 7 8 9]␤[0 1 2 3 4]␤»
kmel psch: Thanks i got splice to work
psch eh, that's a misleading example
m: my @a = ^10; say @a.splice(5); say @a
camelia rakudo-moar cd7766: OUTPUT«[5 6 7 8 9]␤[0 1 2 3 4]␤»
psch m: my @a = ^10; say @a[0..4]; say @a
camelia rakudo-moar cd7766: OUTPUT«(0 1 2 3 4)␤[0 1 2 3 4 5 6 7 8 9]␤»
kmel m: my @array = ['a','b','c','d']; @array.splice(1,2); say @array; 17:30
camelia rakudo-moar cd7766: OUTPUT«[a d]␤»
psch kmel: "returns the modified array" is what kind of tripped me up, tbh 17:31
kmel: afaik, we don't have anything that modifes in-place and returns the invocant
kmel: note that splice returns the elements you remove
kmel psch: true but i can splice it and say it afterwards no biggie
psch: .splice; then .say; 17:32
timotimo also, hard drive is full now 17:33
kmel another question, can i delete an element by specifying its name? 17:34
instead of index like splice()
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timotimo down to 69meg 17:42
moritz kmel: only in a hash 17:45
psch m: my @a = "foo", "bar", "baz"; @a.splice(@a.index("bar")); say @a 17:46
camelia rakudo-moar cd7766: OUTPUT«Offset argument to splice out of range. Is: 4, should be in 0..3␤ in block <unit> at /tmp/Q5ldDniOWW:1␤␤Actually thrown at:␤ in block <unit> at /tmp/Q5ldDniOWW:1␤␤»
psch oh, that would've been grep-index but that's gone, right?
thowe is it wrong that I mostly use perl6 at work as an accurate desktop calculator? 17:47
moritz m: my @a = "foo", "bar", "baz"; @a.splice(@a.first(:k, "bar")); say @a
camelia rakudo-moar cd7766: OUTPUT«[foo]␤»
moritz m: my @a = "foo", "bar", "baz"; @a.splice(@a.first(:k, "bar"), 1); say @a
camelia rakudo-moar cd7766: OUTPUT«[foo baz]␤»
psch moritz++ # completing my half-solution
kmel ok thanks :) 17:49
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timotimo test test 17:51
'k 17:52
kmel m: my @array = ['d','c','b','a']; @array.sort; say @array; 17:54
camelia rakudo-moar cd7766: OUTPUT«[d c b a]␤»
kmel is this ^ normal? 17:55
thowe I just wish hitting the up arrow scrolled back in my REPL history
TimToady m: my @array = ['d','c','b','a']; @array.=sort; say @array 17:56
camelia rakudo-moar cd7766: OUTPUT«[a b c d]␤»
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TimToady this isn't python 17:57
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kmel thanks TimToady 17:58
i am still reading the docs
thowe how do I change the displayed significant digits of a Rat? 17:59
kmel so what's the difference between = and .= ?
not in the sort example but in general
timotimo it's syntactic sugar similar to += and such 18:00
gfldex .= modifies the container on the left, while = doesnt
timotimo $foo .= uc ->> $foo = $foo.uc
kmel aha thanks 18:01
is there a doc for it? I'd like to read more if possible. 18:02
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TimToady thowe: printf or .fmt or .base(10,$digits) 18:02
m: say <1/3>.base(10,30) 18:03
camelia rakudo-moar cd7766: OUTPUT«0.333333333333333333333333333333␤»
TimToady m: say <1/3>.base-repeating
camelia rakudo-moar cd7766: OUTPUT«(0. 3)␤»
TimToady m: say <22/7>.base-repeating 18:04
camelia rakudo-moar cd7766: OUTPUT«(3. 142857)␤»
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pmurias hi 18:05
timotimo ohai pmurias
down to 66 megabytes 18:08
now it'll be interesting to see if the html profiler barfs at the missing keys
kmel m: @array = [4,3,2,1]; @array.push(99); say @array;
camelia rakudo-moar cd7766: OUTPUT«5===SORRY!5=== Error while compiling /tmp/6HPgufan_i␤Variable '@array' is not declared. Did you mean any of these?␤ array␤ Array␤␤at /tmp/6HPgufan_i:1␤------> 3<BOL>7⏏5@array = [4,3,2,1]; @array.push(99); say␤»
kmel m: my @array = [4,3,2,1]; @array.push(99); say @array;
camelia rakudo-moar cd7766: OUTPUT«[4 3 2 1 99]␤»
kmel m: my @array = [4,3,2,1]; @array.=sort; say @array; 18:09
camelia rakudo-moar cd7766: OUTPUT«[1 2 3 4]␤»
kmel why does sort require .= and push doesn't
?
TimToady push is naturally a mutator
and we don't require all mutators to be written with .= 18:10
timotimo the non-mutator version of .push is ,
(coupled with a flat at the beginning)
TimToady .= is just a convenient way to turn a function into a mutator 18:11
kmel TimToady & timotimo Many thanks 18:12
psch (nearly) everything can be a metaop for infix:<=>
pmurias m: my @array = [4,3,2,1]; say @array.sort.perl; say @array.sort;
camelia rakudo-moar cd7766: OUTPUT«(1, 2, 3, 4).Seq␤(1 2 3 4)␤»
timotimo i've got the profile output down to 66 megabytes, but the html thingie still times out :(
pmurias m: my @array = [4,3,2,1]; say @array.sort; say @array;
camelia rakudo-moar cd7766: OUTPUT«(1 2 3 4)␤[4 3 2 1]␤»
psch where "nearly" probably means "infixes"
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timotimo you can't nest metaop_assign, can you? 18:13
gfldex m: my method twice(Int:D $self:){$self++}; my @many-ints = 1..5; @many-ints>>.=&twice;
camelia rakudo-moar cd7766: OUTPUT«Parameter '$a' expected a writable container, but got Int value␤ in method twice at /tmp/BWufRzQ3mo:1␤ in block <unit> at /tmp/BWufRzQ3mo:1␤␤»
psch makes me wonder if there could be a use for "declare this categorical similar to infix:<=> regarding meta-ability"
m: my $x [=]= 5
gfldex where is '$a' coming from?
camelia rakudo-moar cd7766: OUTPUT«5===SORRY!5=== Error while compiling /tmp/23lOl1YoGz␤Cannot make assignment out of = because list assignment operators are too fiddly␤at /tmp/23lOl1YoGz:1␤------> 3my $x [=]=7⏏5 5␤»
psch timotimo: assignment is too fiddly to be made into an assignment, clearly :) 18:14
timotimo :)
psch gfldex: probably out of whatever postfix:['>>'] translates into
(or "call under the hood")
+s
timotimo yeah, there's not really a postfix >> because it has to parse a method call afterwards 18:15
18:15 FROGGS_ is now known as FROGGS
FROGGS pulls and builds perl6-j 18:15
timotimo xxitpxinput 18:21
...
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xinming termbin.com/w6lk 18:30
termbin.com/w6lk <-- Is this a bug, When I try to run this test script, I got value method is found found.
the error I got is something like Method 'value' not found for invocant of class 'T'
This test code worked before.
psch m: class A { has Int $value }; A.new.value.say 18:31
camelia rakudo-moar cd7766: OUTPUT«Method 'value' not found for invocant of class 'A'␤ in block <unit> at /tmp/T08ClB3Dws:1␤␤»
xinming Maybe the grammer changed.
psch m: class A { has Int $.value }; A.new.value.say
camelia rakudo-moar cd7766: OUTPUT«(Int)␤»
xinming ah
psch xinming: no idea if anything changed there, but attributes generally want a dot twigil
xinming bbl
AlexDaniel xinming: why not ｢for ^$t｣ instead of ｢loop (my $cnt = 0; $cnt < $t; $cnt++)｣ 18:32
timotimo the "." is there to signal "please create an accessor method"
pmurias when a closure is created in nqp is the code object cloned? 18:33
timotimo apparently without a . it will just give you a private attribute without the !
xinming AlexDaniel I'm not still fully get the all features for perl6 yet.
psch mm: class A { has $x }; say A.^attributes.perl
m: class A { has $x }; say A.^attributes.perl
camelia rakudo-moar cd7766: OUTPUT«(Attribute.new,)␤»
psch m: class A { has $x }; say A.^attributes[0].name
camelia rakudo-moar cd7766: OUTPUT«$!x␤»
psch huh, that is interesting
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psch pmurias: org.perl6.nqp.runtime.CodeRef:43 seems to suggest so 18:35
paraphrased "the name of the coderef is not in the staticinfo because clones might want to change it"
hm, actually i suppose that means the CodeRef is cloned, but the staticInfo isn't 18:36
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psch yeah, that interpretation is support by CodeRef.clone() 18:37
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psch unless i'm confusing java assignment semantics again, which i hope i don't... 18:38
pmurias CodeRef clone doesn't seem to clone the codeObj
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FROGGS psch: ewww, I get: Stage classfile : java.lang.RuntimeException: java.lang.RuntimeException: Class file too large! 18:40
psch pmurias: Ops.takeclosure calls the (runtime gen'd) .clone method and casts the result to CodeRef 18:43
gfldex m: say int.max; # i do agree that 64bit makes for large numbers but seams a bit off
camelia rakudo-moar cd7766: OUTPUT«-Inf␤»
psch FROGGS: i haven't seen that yet, ever..? 18:44
FROGGS hmmmm 18:45
psch pmurias: actually, it's not runtime gen'd, sorry
pmurias: it should be the clone found in CodeRef.java 18:46
well, except if it's something generated that subclasses CodeRef and overwrites .clone...
xinming termbin.com/m7kk
How about this example then?
When I try to extract the last array element which is array too? 18:47
psch m: gist.github.com/peschwa/4a55a318af570988e67d
camelia rakudo-moar cd7766: OUTPUT«Method 'value' not found for invocant of class 'Array[T]'␤ in block at /tmp/CrfyUOnI8u:22␤ in submethod BUILD at /tmp/CrfyUOnI8u:20␤ in block <unit> at /tmp/CrfyUOnI8u:28␤␤»
xinming I believe this is where it changed.
Please notice the @!last in the last example.
psch xinming: i copied your latest link to a gist because camelia understands those
xinming yes, if you have safe env, just do curl url | perl6 :-) 18:48
But I personally don't do this. Maybe you have better idea. 18:49
ah, xx.gist.say
psch m: my Array of T @x; say @x.perl
camelia rakudo-moar cd7766: OUTPUT«5===SORRY!5===␤Type 'Array' is not declared. Did you mean 'array'?␤at /tmp/BQZpsX94ou:1␤------> 3my Array of 7⏏5T @x; say @x.perl␤Malformed my␤at /tmp/BQZpsX94ou:1␤------> 3my Array of 7⏏5T @x; say @x.perl␤␤»
psch m: class A { has Array of T @x.; }; A.new.x.perl.say 18:50
camelia rakudo-moar cd7766: OUTPUT«5===SORRY!5===␤Type 'Array' is not declared. Did you mean 'array'?␤at /tmp/vOj7c8E4qs:1␤------> 3class A { has Array of 7⏏5T @x.; }; A.new.x.perl.say␤Malformed has␤at /tmp/vOj7c8E4qs:1␤------> 3class A { has Array of 7⏏5T @x.; };…»
FROGGS m: my T @x; say @x.perl
camelia rakudo-moar cd7766: OUTPUT«5===SORRY!5===␤Type 'T' is not declared␤at /tmp/r1Lpjzt7St:1␤------> 3my T7⏏5 @x; say @x.perl␤Malformed my␤at /tmp/r1Lpjzt7St:1␤------> 3my7⏏5 T @x; say @x.perl␤␤»
psch m: class A { has Array of Int @x.; }; A.new.x.perl.say
camelia rakudo-moar cd7766: OUTPUT«5===SORRY!5=== Error while compiling /tmp/pUIh1LoT9_␤Unsupported use of . to concatenate strings; in Perl 6 please use ~␤at /tmp/pUIh1LoT9_:1␤------> 3class A { has Array of Int @x.;7⏏5 }; A.new.x.perl.say␤»
psch m: class A { has Array of Int @.x; }; A.new.x.perl.say
camelia rakudo-moar cd7766: OUTPUT«Array[Array[Int]].new()␤»
psch that's probably as intended
so last is Array[T] 18:51
ph
oh
xinming Yes, But I just don't know how to unify the array and iterate them.
psch m: my @a = ^10; my @b = 10..19; for @a, @b { .perl.say }
camelia rakudo-moar cd7766: OUTPUT«[0, 1, 2, 3, 4, 5, 6, 7, 8, 9]␤[10, 11, 12, 13, 14, 15, 16, 17, 18, 19]␤»
psch xinming: ^^^ that's your hang-up, flattening rules changed
m: my @a = ^10; my @b = 10..19; for |@a, |@b { .perl.say }
camelia rakudo-moar cd7766: OUTPUT«0␤1␤2␤3␤4␤5␤6␤7␤8␤9␤10␤11␤12␤13␤14␤15␤16␤17␤18␤19␤»
xinming Ok, Thanks.
FROGGS m: my @a = ^10; my @b = 10..19; for flat @a, @b { .perl.say }
camelia rakudo-moar cd7766: OUTPUT«0␤1␤2␤3␤4␤5␤6␤7␤8␤9␤10␤11␤12␤13␤14␤15␤16␤17␤18␤19␤»
xinming That's where I got confused. :-)
the flatten rule. 18:52
so the $@array syntax is no longer needed.
psch m: my @a = ^10; my @b = 10..19; @a.push(@b); @a.perl.say 18:53
camelia rakudo-moar cd7766: OUTPUT«[0, 1, 2, 3, 4, 5, 6, 7, 8, 9, [10, 11, 12, 13, 14, 15, 16, 17, 18, 19]]␤»
psch m: my @a = ^10; my @b = 10..19; @a.push($@b); @a.perl.say
camelia rakudo-moar cd7766: OUTPUT«[0, 1, 2, 3, 4, 5, 6, 7, 8, 9, [10, 11, 12, 13, 14, 15, 16, 17, 18, 19]]␤»
psch FROGGS: i've just git clean'd and started building. curious if i get that error too...
gfldex m: my @l = [[1], 2, [[3,4], 5], [[[]]], [[[6]]], 7, 8, []]; .perl.say given gather @l.deepmap(*.take); # xinming: lazy recursive version
camelia rakudo-moar cd7766: OUTPUT«(1, 2, 3, 4, 5, 6, 7, 8).Seq␤»
FROGGS psch: are you on latest commit? 18:54
psch FROGGS: of rakudo, yes
FROGGS hmmm
psch FROGGS: did you build nqp head?
FROGGS weird
I did
This is nqp version 2015.10-9-gb46902b built on JVM
psch k, i'll build that instead then 18:55
xinming m: my @a = ^5; my @b = 5..10; @a.push(@b); @a.perl.say;
camelia rakudo-moar cd7766: OUTPUT«[0, 1, 2, 3, 4, [5, 6, 7, 8, 9, 10]]␤»
xinming So, for now, @a.push(@b) is the same as @a.push($@b); will $ is still necessary? 18:56
b2gills m: say int.Range.max; # gfldex
camelia rakudo-moar cd7766: OUTPUT«9223372036854775807␤»
timotimo not necessary
gfldex m: my @a = ^5; my $b = (5..10).Slip; @a.push($b); dd @a; 18:58
camelia rakudo-moar cd7766: OUTPUT«Array $var = $[0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10]␤»
gfldex m: my @a = ^5; my @b = 5..10; @a.push(|@b); dd @a;
camelia rakudo-moar cd7766: OUTPUT«Array $var = $[0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10]␤»
xinming too many new things for perl6. 18:59
RabidGravy or 19:00
m: @a = ^5; @b = 5..10; @a.append(@b); say @a.perl 19:01
camelia rakudo-moar cd7766: OUTPUT«5===SORRY!5=== Error while compiling /tmp/xfqPhGp5IN␤Variable '@a' is not declared␤at /tmp/xfqPhGp5IN:1␤------> 3<BOL>7⏏5@a = ^5; @b = 5..10; @a.append(@b); say ␤»
RabidGravy m: my @a = ^5; my @b = 5..10; @a.append(@b); say @a.perl
camelia rakudo-moar cd7766: OUTPUT«[0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10]␤»
Skarsnik Hello, I am trying to bind the gumbo lib (a html parser lib). But I have weird memory corruption with handling the attribute part pastebin.com/TPWA6dy4 19:02
psch FROGGS: nqp builds fine on HEAD here..?
FROGGS psch: nqp builds, but rakudo doesnt
psch ah, okay. i misunderstood then 19:03
started Configure for rakudo now
FROGGS but I use HEAD, instead of NQP_REVISION
psch FROGGS: right, i built nqp HEAD and now Configure without --gen-nqp 19:04
RabidGravy Skarsnik, there is a const char * in one of those structs, you may want to use "explicitly-manage" on it 19:05
timotimo moritz: i.imgur.com/Ln46hPq.png - how do you like this?
moritz timotimo: thank you. Doesn't look like there are LHF for optimizing stuff :/ 19:06
looks like most of the time is spent iterating lists and constructing match objects 19:07
xinming In this example, termbin.com/yoe2 <--- I got error 19:08
Cannot look up attributes in a type object <--- This is the rror
error
Skarsnik RabidGravy, hm explicitly-manage is not only when you pass something to the C lib?
xinming But the plain hash worked fine. 19:09
Do I miss something?
19:09 kmel left
moritz xinming: $hello is a type object of type Hello 19:10
xinming: since it's a private attribute (no . sigil), the default constructor doesn't let you initialize it from the outside
psch FROGGS: right, got the error too
xinming moritz: If I add the . 19:11
I get another error which is something like I forget multi.
Invocant requires a type object of type List, but an object instance was passed. Did you forget a 'multi'? <--
FROGGS psch: so, since you were on rakudo HEAD but not nqp HEAD it means it must be an nqp change? 19:12
psch FROGGS: i'm not sure. i think i built rakudo the last time at around 1pm, i.e. 8 hours ago 19:14
FROGGS: and e8d7577b662a1ab85d9ed080d3a8eff56036b016 adds quite a lot of code 19:15
timotimo moritz: i.imgur.com/BJdcSzv.png - this si with --sparse=75 instead
xinming Actually, What I'm curious is, wether there is some behavior which hash doesn't work the same as normal in class.
FROGGS psch: that was my first thought
timotimo moritz: 20% time spent garbage collectin'
FROGGS psch: I try to build cd77669d09d38e5ddb89ee8f6c8392bacebdf829 now
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xinming and anonymous sub doesn't support multi keyword 19:18
FROGGS psch: yeah, that works 19:20
psch docs.oracle.com/javase/specs/jvms/...jvms-4.9.1 19:21
"The value of the code_length item must be less than 65536. "
RabidGravy xinming, multi wouldn't make sense on an anonymous sub
psch FROGGS: welp, time to split CORE into multiple .class files...
FROGGS :S 19:22
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psch FROGGS: we're catching this already for "Method too large" 19:24
FROGGS: i guess adapting that to also check for "Classfile too large" could be enough...
xinming RabidGravy: But my example gave the error about maybe I forgot multi, So, I try to fix it with testing the fixes.
psch nqp.jast2bc.JASTCompiler.java:38, for reference
gfldex xinming: s/has Hello $hello/has Hello $.hello/ 19:25
psch FROGGS: although maybe we need the same in Ops.java:6272
xinming gfldex: I do
BBL
termbin.com/wluq <--- This version with $.hello will report Invocant requires a type object of type List, but an object instance was passed. Did you forget a 'multi'? 19:26
gfldex m: gist.github.com/anonymous/bcd7448642f4d93df39e 19:27
camelia rakudo-moar cd7766: OUTPUT«Hash $var = {:add(sub (Real $x, Real $y) { #`(Sub|60993376) ... }), :mul(sub (Real $x, Real $y) { #`(Sub|60993680) ... })}␤8␤»
gfldex xinming: i replaced some <> with '' and <<>> with {} 19:28
xinming: and what does your perl6 --version say? Mine is 'This is perl6 version 2015.10-11-g75ac71b built on MoarVM version 2015.10'. 19:29
moritz m: my %h = a => 1; say %h<<a>>.^name
camelia rakudo-moar cd7766: OUTPUT«Int␤»
xinming with rplace of <> to ''
It worked fine
This is perl6 version 2015.10-11-g75ac71b built on MoarVM version 2015.10 <--- mine 19:30
I just compiled my new perl?
Do I find the bug?
because as far as I understand, the <blabal> is the same as qw(blabla) which is the same as 'blabla' in that case too.
moritz xinming: func_map<<$t>> returns a List of one element
xinming: I'm not sure it's so simple; if $t contains a space, it'll be a List 19:32
xinming: maybe that's why the List candidate is picked
xinming Here, It makes me confused 19:33
something like this
gfldex m: my %h = '1','a','2 3','b c'; %h<<2 3>>.WHAT.say;
camelia rakudo-moar cd7766: OUTPUT«(List)␤»
xinming the my %test_map = (....); %test_map<<add>>(x,y) <-- THis worked. 19:34
moritz xinming: the solution is not to use <<>> indexing, unless you really need that
xinming but the thing with something like my Str $tname = 'add'; %test_map<<$tname>>(x, y) doesn't.
Which feels a bit confusing.
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xinming Ok, Got it. But I understand the confustion now. 19:35
moritz I can't judge if this is a rakudobug or not
psch FROGGS: well, just catching "Classfile to large" there isn't enough
FROGGS: we don't have a AutosplitClassfileWriter...
+n 19:36
FROGGS damn
xinming moritz: I'll ask this tomorrow. too late here. I'll go to bed. But thanks for the clarifaction.
psch 6.christmas-j is looking a tad grim right now :P 19:37
gfldex m: my %h = '1','a','2 3','b c'; my $a = 1; %h<<$a>>.WHAT.say; $a = '2 3'; %h<<$a>>.WHAT.say;
camelia rakudo-moar cd7766: OUTPUT«(List)␤(List)␤»
psch fwiu we need to implement an AutosplitClassfileWriter and probably touch classloading to be aware of that
oh, and {,de}serialization probably also needs to know about it 19:38
FROGGS ewww
xinming m: my %h = '1', 'a', '2 3', 'b c'; %h<<1>>.WHAT.say;
camelia rakudo-moar cd7766: OUTPUT«(Str)␤»
xinming This is the tricky bit. they both strings, but behave differently. 19:39
they are both strings *
psch the alternative might be somehow shrinking or splitting the setting on a p6-level, but i'm pretty confident that's 1) a bad idea and 2) contradicts seperation of concerns 19:40
FROGGS m: my %h = '1','a','2 3','b c'; my $a = 1; %h<<a>>.WHAT.say; %h<<$a>>.WHAT.say;
camelia rakudo-moar cd7766: OUTPUT«(Any)␤(List)␤»
psch (it's a bad idea not only because of 2, but 2 seems a significant enough reason on its own...)
FROGGS m: my %h = '1','a','2 3','b c'; my $a = 1; %h<a>.WHAT.say; %h<<$a>>.WHAT.say;
camelia rakudo-moar cd7766: OUTPUT«(Any)␤(List)␤»
FROGGS m: my %h = '1','a','2 3','b c'; my $a = 1; %h<1>.WHAT.say; %h<<$a>>.WHAT.say; 19:41
camelia rakudo-moar cd7766: OUTPUT«(Str)␤(List)␤»
FROGGS psch: aye
psch: sorry that there is not much input from my side, but I'm tired
psch FROGGS: tbh, having this happen also suddenly made me quite tired :P 19:43
FROGGS hehe
gfldex m: my %h = <1 a 2 b>; %h<<1>>.WHAT.say; %h<<1 2>>.WHAT.say; my $a = 1; my @some-list = %h<<$a>>.WHAT.say; 19:48
camelia rakudo-moar cd7766: OUTPUT«(Str)␤(List)␤(List)␤»
gfldex m: my @l; my %h = <1 a 2 b>; @l = %h<<1>>; dd @l; @l = %h<<1 2>>; dd @l; my $a = 1; @l = %h<<$a>>; dd @l; 19:50
camelia rakudo-moar cd7766: OUTPUT«Array $var = $["a"]␤Array $var = $["a", "b"]␤Array $var = $["a"]␤»
gfldex i think the problem is that %h<<...>>.WHAT.say is missleading because how often would you use a free floating hash? 19:51
timotimo i don't really get what problem we're handling at the moment
i'm distracted
but why would you us e<<$foo>> instead of {$foo} 19:52
RabidGravy dunno
gfldex I wouldn't unless I really want some hash slice. xinming did and got some rather strange error.
the error message wasn't really LTA tho. 19:53
m: my @l; my %h = <1 a 2 b>; %h<<1>>>>.uc.say; %h<<1 2>>>>.uc.say; 19:54
camelia rakudo-moar cd7766: OUTPUT«(A)␤(A B)␤»
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timotimo m: 1>>.uc.say 19:55
camelia rakudo-moar cd7766: OUTPUT«(1)␤»
gfldex he combined an unintended hash slice with type magic and that blew up
timotimo this may be the reason it's unexpectedly listy?
oh, also, .WHAT doesn't play very nice with many higher-order things 19:57
moritz generally prefers .^name for debugging 19:58
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timotimo i'm missing some kind of skill or insight that makes looking at these routine timing numbers super helpful 20:22
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dalek kudo/nom: 3c00699 | usev6++ | lib/Test.pm:
Avoid warnings about uninitialized values (RT #124445)

There were 5 such warnings when running 'perl6 --doc lib/Test.pm'		 20:27
synbot6 Link: rt.perl.org/rt3/Public/Bug/Display...?id=124445
dalek kudo/nom: 68dc9ed | lizmat++ | lib/Test.pm:
Merge pull request #560 from usev6/rt124445

Avoid warnings about uninitialized values (RT #124445)
synbot6 Link: rt.perl.org/rt3/Public/Bug/Display...?id=124445
moritz timotimo: well, sometimes (quite often, actually) you get lucky, and one routine takes a significant amount of time (like, 30% to 95%); then it's often quite possible to optimize that one routine, or make sure it gets called fewer times
20:27 tokuhirom left
timotimo right. one thing that bothers me Right Now is that the numbers it shows are very hard to compare by eye because they are shown with proportional font and left-aligned 20:28
the entry numbers, i mean
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lizmat .botsnack 20:29
yoleaux :D
synbot6 om nom nom
timotimo with a constant sized font (or maybe even an antiproportional font?) maybe it'll be better!
dalek p: 5bdb23d | (Pawel Murias)++ | src/vm/js/ (2 files):
[js] Refactor block handling in preparation for removal of some hacks.

Handle declaration_static and declaration separately. Needs some debugging to figure out why some hacks are still necessary.		 20:32
AlexDaniel So what is required for my pull request to be merged? (this one: github.com/perl6/specs/pull/102) pmichaud mentioned “agreement” but for that some comments are required, I guess…
pmurias a random error in MoarVM sometimes makes nqp-js emit incorrect code :( 20:33
moritz pmurias: time to bootstrap, eh? :-) 20:36
lizmat pmurias: if you can make it repeatable, that would be brilliant!
moritz AlexDaniel: I won't merge that unless TimToady++ gives the green light (or at least doesn't disapprove) 20:37
lizmat because it is probably doing the same thing when emitting moarvm bytecode, but that is probably much harder to debug!
AlexDaniel moritz: yeah, that's fine. I did not see any reply from him yet 20:38
pmurias lizmat: I'll try to find a way to reproduce that reliably, it seems to be something with strings getting concatenated incorrectly (it causes fragments of generated javascript to go missing) so it might not occur when emitting moarvm 20:39
OTOH it's likely some other error manifesting (like the last one jnthn++ fixed) 20:40
moritz: working on the bootstrap, currently fixing bugs that make (nqp-js)-compiled-to-js fail tests 20:41
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bartolin pmurias: as you wrote 'strings getting concatenated incorrectly' I was reminded of RT #123602 20:44
synbot6 Link: rt.perl.org/rt3/Public/Bug/Display...?id=123602
bartolin pmurias: maybe it's related somehow?!
pmurias bartolin: not sure, mine is random 20:46
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bartolin pmurias: ok, just wanted to note that there is at least one known problem in this area 20:47
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lizmat FWIW, I seem to recall jnthn telling me that nqp::concat is not actually concatting strings, but creating a linked list internnally 20:50
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pink_mist AlexDaniel: my suggestion would be to rename :x to :shell or :shellout instead, so it's clear both what it does, and it has a worse huffman coding ... and possibly add a :r or :run for runout 20:55
bartolin lizmat: since you worked on the code for squish lately: does the following problem on jvm ring a bell for you?
j: say squish("a", "b", "b", "a")
camelia ( no output )
bartolin hmm :/
lizmat m: say squish("a", "b", "b", "a") # sanity check
camelia rakudo-moar cd7766: OUTPUT«(a b a)␤»
bartolin locally I get '(a b a Mu.new Mu.new Mu.new Mu.new ...)'
lizmat ah? 20:56
no, doesn't ring a bell, but I'll look at it in a mo
pink_mist AlexDaniel: the :r/:run would be on an array or list then =)
AlexDaniel pink_mist: well, run takes a list of arguments, so it is pretty hard to get it into a quoting construct (although still possible).
dalek p: 4fd2e45 | (Pawel Murias)++ | src/vm/js/QAST/Compiler.nqp:
[js] Implement nqp::callstatic as nqp::call.
pink_mist AlexDaniel: but I'm not really married to the idea ... could easily do without that 20:57
bartolin lizmat: somehow IterationEnd =:= $pulled does not match within 'push-exactly' from src/core/Iterator.pm
AlexDaniel pink_mist: having :shell instead of :x is actually not too bad, yet I still don't really see many reasons for :x adverb to exist at all… 20:58
lizmat bartolin: well, that *could* be some JVM garbage collect issue maybe ? 20:59
AlexDaniel pink_mist: like, if we had no :x today, what would be the reason to implement it? :)
flussence would like q:x to mean system() instead of shell(), at the very least. For performance reasons if nothing else.
bartolin lizmat: well, it's not a pressing problem, anyway. just wanted to hear if you have an idea at hand :-)
lizmat no, that looks like a JVM issue to me.. :-( and I'm a complete JVM noob 21:00
pink_mist AlexDaniel: I actually didn't even know about it until just now ... and I'm not l
err
bartolin lizmat: as am I *g* 21:01
pink_mist AlexDaniel: and I'm not liking that it exists either, but now that I do know about it, I would probably miss it if it was completely removed
bartolin was looking for some spectest failures and started with squish.t
AlexDaniel pink_mist: ok, but is “shellout” sub somehow worse than :x? 21:02
dalek p: f3aed7a | (Pawel Murias)++ | src/vm/js/QAST/Compiler.nqp:
[js] add coercion from $T_BOOL to $T_INT.
pink_mist AlexDaniel: it probably isn't, but it's a nice demo of adverbs 21:03
*but :x is a ..
AlexDaniel: regarding the names of 'shellout' and 'runout', I do like the 'shellout' name, but 'runout' is really not to my liking 21:04
AlexDaniel flussence: yeah, but I don't think that we can change it right now, since it will break existing code. If :x later comes back in another form, then it is fine, but it seems to be a right thing to deprecate it now.
pink_mist: I find it weird too, yet I like the consistency. shell() -> shellout(), run() -> runout() 21:05
pink_mist what precisely does shell() do?
AlexDaniel pink_mist: returns a Proc object, as far as I can see 21:06
pink_mist: so that you can run any shell command, and then observe its return code or pass some stdin
pink_mist gotcha
AlexDaniel it is very flexible, I love it
pink_mist: shell('rm all my files', :out).out.slurp-rest; # that's what shellout does 21:07
pink_mist right
I still don't like runout() as a name :/ 21:08
AlexDaniel and there's run(), which works very similarly, but completely without the shell
flussence also I feel like the current q:x should really have been qw:x, given the way it works.
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AlexDaniel flussence: how would that help? 21:08
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AlexDaniel pink_mist: actually, it could be shortened to out()… 21:10
pink_mist ohh, yes!
I like that!
AlexDaniel hmm
pink_mist (let's just h 21:11
ope everyone else does too)
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pink_mist (damn, my enter button gets pressed randomly when I rest my hands on the front of the laptop :/) 21:11
flussence as long as we end up with something shorter to type than "use IPC::System::Simple qw(systemx); systemx(@foo)", I don't care much how this ends :)
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vendethiel waves 21:16
pink_mist AlexDaniel: I'll comment on the pull request with what I got out of our discussion here =) 21:17
AlexDaniel pink_mist: yes please
lizmat waves back
flussence it does feel a bit unfortunate that the most user-friendly way of running external processes is a footcannon... 21:20
gfldex m: sub function { 2 * $^x + 3 }; say [1,2,3]>>.&({ $^x + 1 })
camelia rakudo-moar cd7766: OUTPUT«[2 3 4]␤»
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lizmat in the category weird errors, possibly DIHWIDT: gist.github.com/lizmat/e6924fd8f39500552286 21:31
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vendethiel lizmat: does --ll-exception give a bit more of a clue? 21:36
lizmat it does, but does not make much sense (updated gist with long stack trace) 21:39
it seems to go bad in if not %*perlseen<TOP> { my %*perlseen = :TOP ; return self.perl(:$arglist) }
I'm not spending any more time on this, I just thought jnthn might be interested and I didn't want to forget it 21:48
because at one point we probably *do* want to make sure that you cannot instantiate Rakudo::Internals
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timotimo Program terminated with signal SIGKILL, Killed. 22:03
The program no longer exists.
isn't gdb supposed to ... you know ... keep the program around so i can debug it? 22:04
seems like it got killed via OOM 22:08
geekosaur nothing can intercept SIGKILL 22:15
including debuggers
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lizmat timotimo: any suggestions on how to check performance of foo xx * ? 22:16
timotimo hm, nothing comes to mind 22:17
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lizmat m: my @a = Slip(1,2,3,4,5) xx 3; dd @a # is this correct? I sorta expected @a to only have 3 elements after this 22:22
camelia rakudo-moar cd7766: OUTPUT«Array $var = $[1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5]␤»
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lizmat this feels wrong to me... 22:23
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japhb lizmat: Why does that seem strange to you? I would expect Slip to be exactly the way to not have 3 elements, actually ... 22:28
lizmat but with xx you specify the number of elements that you want, I would think 22:29
the fact that it is a Slip that happens to be xx'd, shouldn't matter
because it could be hidden in an expression
japhb Sure, but even hidden in an expression, the whole point of a Slip is to disappear into larger lists, right? 22:31
Or am I out of date with the current design?
lizmat sure... that is correct
so I would expect the above to set @a to 1,2,3
and leave the rest of the Slip to not be consumed 22:32
gfldex m: constant list = Slip(1,2,3) xx 3; constant seq = slip(1,2,3),slip(1,2,3),slip(1,2,3); dd list; dd seq; 22:39
camelia rakudo-moar cd7766: OUTPUT«Seq $var = (1, 2, 3, 1, 2, 3, 1, 2, 3).Seq␤List $var = $(1, 2, 3, 1, 2, 3, 1, 2, 3)␤»
gfldex i would expect the slips to be preserved in both cases
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timotimo lizmat: i really wouldn't expect xx to give a shorter list than any data you may have on the LHS 22:41
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timotimo as in, i expect Slip(1, 2, 3, 4) xx 3 to have 4 * 3 elements 22:41
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japhb Because Slip(...) is the expression that gets thunked and evaluated 3 times 22:42
(Since the LHS of xx is a thunk)
timotimo that'? how i understand it, aye
lizmat how many elements do you expect {1,2,3,4] xx 3 to have ? 22:43
timotimo i always hold capslock too long when i want to "'s"
japhb lizmat: 3
lizmat how many do you expect $foo xx 3 to have ?
japhb lizmat: 3 -- $foo being in a scalar container
lizmat m: my $foo = Slip(1,2,3); dd $foo xx 3 22:44
camelia rakudo-moar cd7766: OUTPUT«Seq $var = (1, 2, 3, 1, 2, 3, 1, 2, 3).Seq␤»
japhb If it was foo xx 3, I would expect that to depend on whether foo was a Slip (or returned one)
lizmat this is the same issue as with push/pop
japhb That surprises me.
A side effect of single-arg?
lizmat and why push/pop do not flatten in any way anymore 22:45
and not making a Slip flatten because it happens to be in a scalar, is really adding magic 22:46
japhb gives that a little time to simmer
timotimo i kind of expect xx ro behave more like "execute thing on lhs X times" 22:47
rather than "give me a list with X elements"
japhb timotimo: Yes, correct.
timotimo but i do see the reason to have it the other way
like in array slice assignment
except then it would be xx * 22:48
japhb No, otherwise you couldn't say: sub foo() { Slip(1,2,3) }; my @bar = foo() xx 3.
And get 9 elements in @bar
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lizmat so looking at "xx N" does not guarantee you get N elements ?? 22:49
japhb I'm still not sure I agree that Slip-inside-Scalar should still flatten.
lizmat I find that suprising and action at a distance
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japhb lizmat: But Slip is the only exception -- and it's the *point* of Slip to be that exception 22:50
lizmat I agree it is the exception, but I think we disagree on how :-)
japhb Fair enough.
lizmat I mean, if you *know* that "foo" returns a Slip with 3 elements, and you want 9, what's the problem in saying foo xx 9 ? 22:51
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lizmat you *want* 9 elements there or not ? 22:51
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japhb Because 'xx N' really means "Execute the thing on the left N times" not "Make an N element list" 22:53
*not "Make an N element list from the thing on the left"
ugexe m: my @a = 1,2,3,4,5; say @a[*-10] # reports that -5 was used as the index
camelia rakudo-moar cd7766: OUTPUT«Index out of range. Is: -5, should be in 0..Inf␤ in block <unit> at /tmp/2aQcdiklWg:1␤␤Actually thrown at:␤ in block <unit> at /tmp/2aQcdiklWg:1␤␤»
timotimo ugexe: that's because it is, though 22:54
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lizmat japhb: I disagree: in the case of Slip(1,2,3) xx *, you do not specify the number of LHS executions either 22:55
m: dd Slip(1,2,3) xx *
camelia rakudo-moar cd7766: OUTPUT«Seq $var = (1, 2, 3, 1, 2, 3, 1, 2, 3, 1...Inf)␤»
timotimo that looks funny
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ugexe m: my @a = 1,2,3,4,5; say @a[*-5..1]; say @a[*-10..1] 22:56
camelia rakudo-moar cd7766: OUTPUT«(1 2)␤()␤»
lizmat well, FWIW, I am working in GLRifying xx again, and that was the one test that failed originally
m: dd Slip(1,2,3) xx * # expected result in spectest
camelia rakudo-moar cd7766: OUTPUT«Seq $var = (1, 2, 3, 1, 2, 3, 1, 2, 3, 1...Inf)␤»
japhb lizmat: I don't understand 'in the case of Slip(1,2,3) xx *, you do not specify the number of LHS executions either' -- What are you contending that the * is indicating? 23:00
lizmat you're asking for an Inf number of elements, not Inf * 3
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japhb lizmat: No, you're asking for an Inf number of executions. Besides which, Inf * 3 == Inf anyway. :-) 23:02
lizmat well, I guess we agree to disagree then :-) 23:03
anyways, *I* think this is the same kind of issue that caused TimToady to create append/prepend
japhb I guess I see it as parallel to 'foobarbaz' x N, where the character count depends on the length of the thing on the left. 23:04
lizmat x and xx are different beasts, I think, that's why they're different in Perl 6 in the first place :-) 23:05
different operators I mean
japhb Sure. But my point is that the concept that the (abstract) length of either x or xx should depend on the corresponding length measure. xx just has the difference that you care about flattening when determining that length. 23:06
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japhb They are different operators because the produce different things, but clearly they are intended to fit into nearby slots in the brain, or they would look even more different. 23:07
*they produce
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japhb There were some missing words from my comment at :06, but hopefully you can pull sense out of it. :-/ 23:08
lizmat yeah, I think it's clear we disagree on how we care about the flattening of Slips :-) 23:10
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japhb Heh 23:11
lizmat running spectest with my pov now... :) seems to cause some breakage
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japhb Is TimToady around this weekend to rule? 23:12
timotimo this weekend to rule them all
lizmat switching from one pov to the other, is fortunately trivial
code wise :-) 23:13
hmmm.. most of the breakage seems to be cause by This Seq has already been iterated, and its values consumed 23:17
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lizmat ok, many spectests disagree with my view... :-( 23:31
so I'll just implement it the "right" way :-)
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