»ö« Welcome to Perl 6! | perl6.org/ | evalbot usage: 'p6: say 3;' or rakudo:, or /msg camelia p6: ... | irclog: irc.perl6.org or colabti.org/irclogger/irclogger_logs/perl6 | UTF-8 is our friend!
Set by moritz on 22 December 2015.
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tbrowder thnx 00:36
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tbrowder when’s the next release gonna happen? 00:37
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ilmari releasable6: status 00:43
releasable6 ilmari, Next release will happen when it's ready. No blockers. 213 out of 215 commits logged
ilmari, Details: gist.github.com/d19d6b333e02aa4099...7bfd7f6908
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AlexDaniel tbrowder, ilmari: everything looks good right now, so relatively soon! 01:04
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AlexDaniel like in 24 hours maybe 01:06
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tejr can i have a perl6 cloak? i wrote some perl6 once 02:57
it was all
"hello world" 02:58
but with ..uh ... meta-operators. yeah
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ZzZombo timotimo: does it mean if I use `open` directly, it should work with my encoding? 03:38
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ZzZombo In other news, Github search is bloody useless, just like Spies. 04:31
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ZzZombo timotimo: gist.github.com/ZzZombo/e78cad5672...0b33ad6bb5 was updated, I attempted to figure out the decoder functions to implement, can you spot any mistakes. Test run showed empty (or invisible) output, no errors or warnings. 05:22
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ZzZombo Nevermind, I figured this out I think. Works as far as I can see. 06:14
Although I am not certain in my implementation, you should take a look anyway. I might overlook and/or misunderstand some things. 06:21
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ufobat_ m: require IO::Foo::Bar 07:08
camelia IO::Foo::Bar is a builtin type, not an external module
in block <unit> at <tmp> line 1
ufobat_ i am wondering about the error message. It's not a builtin type. 07:09
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geekosaur seems like unfortunate conflation of namespacing 07:21
I can see the point, kind of, but also think it's a bit of bad idea to extend it beyond actual built-in types, because it means you can't expand their repertoire via the ecosystem
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ufobat_ geekosaur: what about using IO::Socket::Async::SSL while having it not installed :-( 07:44
geekosaur I ntoe that use doesn't have the same behavior. 07:46
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geekosaur require is a bit of a special case 07:46
and, well, the namespacing might actually be an issue because require is runtime, whereas use is compile time
ufobat_ m: use IO::Foo::Bar 07:47
camelia ===SORRY!===
Could not find IO::Foo::Bar at line 1 in:
/home/camelia/.perl6
/home/camelia/rakudo-m-inst-1/share/perl6/site
/home/camelia/rakudo-m-inst-1/share/perl6/vendor
/home/camelia/rakudo-m-inst-1/share/perl6
CompU…
ufobat_ I am using require because it depends on the user of the module wether he wants/has ssl installed or not 07:48
geekosaur (more precisely, because require is runtime, there is the potential for its parameter to be computed)
ufobat_ github.com/ufobat/HTTP-Server-Ogre/issues/2 - i was just confused by the error 07:49
i am going to create a perl6 ticket for this :-) 07:54
ZzZombo there should already be
I recall reporting this behavior a year or so ago, it was noted. 07:55
bartolin c 07:56
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ZzZombo How can I overwrite contents of a `rw` `IO::Handle`? 08:37
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ZzZombo `$*KERNEL` returns 'unknown' for anything but `name` on my Windows machine, is it normal? 08:41
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ZzZombo And it died for CPU info accessors. 08:43
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moritz ZzZombo: you can .print or .say or .write tot he IO handle 10:22
ZzZombo ah, so I shouldn't use `spurt` for this. 10:23
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tyil spurt is to write to an actual path on your filesystem 10:25
it basically opens the io handle and writes to it and closes it again for you
ZzZombo eh?
tyil if you have an open handle already, you can use the methods moritz gave you
ZzZombo m: say IO::Handle.^methods.grep: *.name eq 'spurt'; 10:26
camelia ()
ZzZombo m: say IO::Handle.^methods
camelia (gist new FALLBACK)
ZzZombo m: say IO::Handle.methods.grep: *.name eq 'spurt';
camelia IO::Handle is disallowed in restricted setting
in sub restricted at src/RESTRICTED.setting line 1
in method FALLBACK at src/RESTRICTED.setting line 31
in block <unit> at <tmp> line 1
ZzZombo well, the point is, IO::Handle also can spurt things 10:27
tyil heh, you're right, didn't know that 10:28
multi method spurt(IO::Handle:D: Cool $data, :$close = False)
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Geth doc: bfa2947a73 | (Jan-Olof Hendig)++ | 2 files
Remove a couple of non working C<> tags from a =SUBTITLE
 12:01
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Geth doc: 16dfa87caa | (Jan-Olof Hendig)++ | 2 files
Sundry formatting fixes
 12:16
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timotimo benchable6: releases my $n = 3_000; my $sum = 0; loop (my $i = 1; $i <= $n; $i++) { loop (my $j = 1; $j <= $i; $j++) { $sum += $i+$j; } } 12:54
benchable6 timotimo, starting to benchmark the 24 given commits
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timotimo mhh 12:59
benchable6: 2017.01,2017.03,2017.05,2017.07,2017.09,2017.11 my $n = 3_000; my $sum = 0; loop (my $i = 1; $i <= $n; $i++) { loop (my $j = 1; $j <= $i; $j++) { $sum += $i+$j; } } 13:00
benchable6 timotimo, starting to benchmark the 6 given commits
timotimo, benchmarked the given commits, now zooming in on performance differences 13:02
timotimo, gist.github.com/6a62b68db0dbfa26c0...f135fdface 13:03
timotimo benchable6: 2017.09,2017.10 my $n = 3_000; my $sum = 0; loop (my $i = 1; $i <= $n; $i++) { loop (my $j = 1; $j <= $i; $j++) { $sum += $i+$j; } } 13:04
benchable6 timotimo, starting to benchmark the 2 given commits
timotimo, benchmarked the given commits, now zooming in on performance differences
timotimo, ¦2017.09: «3.6152» ¦2017.10: «3.5363»
Geth doc: 0c2a5aea09 | (Jan-Olof Hendig)++ | doc/Type/Proc/Async.pod6
Fixed formatting of code example and a few broken method links
 13:10
synopsebot Link: doc.perl6.org/type/Proc/Async
ZzZombo how can I display an Instant with a precision down to milliseconds? 13:28
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moritz m: say now 13:37
camelia Instant:1511098685.135303
moritz looks like milliseconds to me already
even microseconds
m: say now.^name
camelia Instant
ZzZombo eh, down to, but not more. 13:38
too verbose for my purposes
moritz m: say now.tai.fmt("%.3f") 13:39
camelia 1511098816.429
ZzZombo `.tai`?
moritz en.wikipedia.org/wiki/International_Atomic_Time 13:40
ZzZombo m: say ($_,.tai) with now 13:41
camelia (Instant:1511098902.795335 1511098902.795335)
ZzZombo m: say now.tai.WHAT
camelia (Rat)
ZzZombo `.push(my $=Grammar::VDF::Section.new(:name<x>))` # Pod variable $=Section not yet implemented. Sorry. 13:48
What??
moritz $=Grammar is a POD variable 13:49
syntax-wise
what did you mean to write?
my $ = Grammar::VDF::Section.new(:name<x>)
?
ZzZombo copy a new object to a anon var
moritz then you need whitespace around it
MasterDuke timotimo: those commits that benchable is pointing out don't seem right, either for your runs here or mine in #whateverable 13:51
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ZzZombo timotimo: please take a look at my gist when you have time. Thanks. 14:04
Also about this line `.push(my $ = Grammar::VDF::Section.new(:name<x>))`, why can it be so if I omit the assignment here, the object silently doesn't get pushed, and can't be later accessed, but first assigning it to a variable before pushing fixes it. 14:10
my `push` method is a simple `multi method push(::?CLASS:D: *@children --> ::?CLASS:D)` that greps valid elements and appends them to internal array. 14:11
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Geth doc: 446a58a949 | (Aleks-Daniel Jakimenko-Aleksejev)++ | doc/Type/Telemetry.pod6
Deconfuse “KBytes”

See these:
  * github.com/torvalds/linux/blob/c9b...ys.c#L1731
  * github.com/perl6/whateverable/issu...-345504033
  “KBytes” is amiguous and arguably wrong. “KiB” is spot on.		 14:22
synopsebot Link: doc.perl6.org/type/Telemetry
buggable New CPAN upload: App-Cpan6-0.8.3.tar.gz by TYIL cpan.metacpan.org/authors/id/T/TY/...8.3.tar.gz 14:23
Geth whateverable: 54cc4bb763 | (Aleks-Daniel Jakimenko-Aleksejev)++ | lib/Whateverable.pm6
Correct max-rss value

See github.com/perl6/doc/commit/446a58...fdd8cce872		 14:24
doc: 1d00cdd8ba | (Jan-Olof Hendig)++ | doc/Type/Supplier.pod6
Fix broken link
 14:25
synopsebot Link: doc.perl6.org/type/Supplier
doc: a8ab80ba48 | (Jan-Olof Hendig)++ | doc/Type/Scalar.pod6
Fix formatting
 14:27
synopsebot Link: doc.perl6.org/type/Scalar
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ZzZombo what does this do? 15:02
m: my @a=1,2,3;@a ,= 4; @a.say;
camelia (\Array_58169936 = [Array_58169936 4])
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timotimo it creates an array that has itself as its first entry and a 4 after itself 15:03
the 1, 2, 3 gets replaced by the second assignment
m: my @a = 1, 2, 3; @a [R,]= 4; @a.say
camelia Potential difficulties:
Useless use of [R,]= in sink context
at <tmp>:1
------> 3my @a = 1, 2, 3; @a 7⏏5[R,]= 4; @a.say
(\Array_71049168 = [4 Array_71049168])
buggable New CPAN upload: App-Cpan6-0.11.0.tar.gz by TYIL cpan.metacpan.org/authors/id/T/TY/...1.0.tar.gz
timotimo ah, that bug again 15:04
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moritz github.com/moritz/json/issues/33 zef seems to be try to parse a .gitignore file as JSON 15:23
is that a known bug in zef?
ZzZombo can I `.append` a hash with overwriting existing values, instead of promoting them into arrays in appending them? 15:24
moritz if you want that, you can just assign them 15:26
m: my %h = a => 1, b => 2; my %x = b => 3, c => 4; %h ,= %x; say %h.perl
camelia {:a(1), :b(3), :c(4)}
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Geth doc: 9906829d4f | (Will "Coke" Coleda)++ | xt/words.pws
learn new word
 16:08
doc: 6ac188200d | (Will "Coke" Coleda)++ | xt/words.pws
learn new word
s0me0ne-unkn0wn p6: my $s = supply { emit "hi!" }; $s.tap( -> $v {}); say $s.wait; 16:20
camelia hi!
s0me0ne-unkn0wn Some inconsistency here
According to docs, "method wait(Supply:D:) Waits until the supply is done (in which case it returns True) or quit (in which case it will throw the exception that was passed to quit)." 16:21
Looks like it returns the whole payload tapped from supply instead of just True
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s0me0ne-unkn0wn Indeed event the tapping itself is not required 16:24
p6: my $s = supply { emit "hi!" }; say $s.wait;
camelia hi!
s0me0ne-unkn0wn The only question if I can rely on this behavior 16:25
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comborico1611 Good morning, Vietnam! 16:26
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timotimo s0me0ne-unkn0wn: easiest way to find out is to see how it's tested in roast 16:29
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timotimo in none of the tests in S17-supply/wait.t the wait method is called in a context that'd give a value at all 16:38
my $s = supply { emit "hi!"; emit "goobdye!" }; say $s.wait;
m: my $s = supply { emit "hi!"; emit "goobdye!" }; say $s.wait;
camelia goobdye!
timotimo at least it only gives the very last value rather than saving up values 16:39
ah, yes, method wait is just "await self.Promise"
s0me0ne-unkn0wn Yes, looking at source too
timotimo and the .Promise behaviour is tested to give the last emitted value 16:40
maybe all that wants changing is to have method wait(--> True) { await self.Promise }
s0me0ne-unkn0wn I see, thank you. Going to use `wait` in boolean context then :) 16:44
timotimo i'd wait in sink context 16:45
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___luke___ Hello, while golfing a perl 6 program, I ended up with $_??A!!B (where A and B are statements). $_ can be 0..5. Is there a shorter way to achieve the same functionality? 17:24
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___luke___ As $_ is the default argument to a lot of funtions, I think there's something shorter, but I'm not sure as to what exactly. 17:25
moritz well, you can call methods on $_ with a shortcut
m: $_ = 42; .say
camelia 42
moritz but I know nothing shorter than ?? !! for an if/else or ternary operator
___luke___ Yeah, but A and B are strings. My code basically looks like say $_??"stringA"x$_!!"StringB"for ^6 17:26
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___luke___ Also, how come I can't do "="x10, but instead have to insert a space between the x and the 1? 17:28
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AlexDaniel ___luke___: use ⑩ instead of 10 17:29
___luke___: as for ?? !!, I don't know any shorter way to do it, unfortunately
___luke___ Is ⑩ 1 byte or 2? 17:30
AlexDaniel well… it's one character :)
the number of bytes will depend on the encoding… 17:31
___luke___ Sadly, codegolf.stackexchange uses bytes ;-)
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AlexDaniel in what encoding? 17:31
well, let's assume utf8
___luke___ You can pick that yourself
AlexDaniel m: say ‘⑩’.encode
camelia utf8:0x<e2 91 a9>
AlexDaniel that's three
___luke___ So it doesn't save anything...
AlexDaniel ___luke___: fwiw, for unicode-aware golfing there's code-golf.io/ 17:33
___luke___ Yeah, but the high scores of others slightly demotivate me ;)
I'll first practise some more
Thanks for the tip though
AlexDaniel: I wonder, does your solution still count if it's exactly the same as the solution of someone else? 17:36
AlexDaniel ___luke___: yes 17:37
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AlexDaniel but solutions are not shown, so copy-pasting is unlikely 17:37
___luke___ Hmm, that explains all the 19-byte quines
AlexDaniel well, yeah, unless we're talking about the quine task… it's rather obvious (or takes 1 minute of googling) 17:38
fwiw here's my perl 6 solution, but it's not competitive
huggable: quine
huggable AlexDaniel, BEGIN {use nqp;put nqp::getlexdyn(‘$/’)}
AlexDaniel m: BEGIN {use nqp;put nqp::getlexdyn(‘$/’)}
camelia BEGIN {use nqp;put nqp::getlexdyn(‘$/’)}
___luke___ O.o
How does that even work? 17:39
AlexDaniel in fact, even rosettacode quine is shorter: rosettacode.org/wiki/Quine#Perl_6
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AlexDaniel ___luke___: perl 6 is parsed with perl 6, sort of. So you can actually manage to get the source code that is being parsed 17:40
___luke___ That feels like cheating ;)
ugexe m: say (“foo” x 0).Bool
camelia False
AlexDaniel just printing $/ will not give the whole source file I think 17:41
m: say 42; BEGIN {use nqp;put nqp::getlexdyn(‘$/’)}
camelia BEGIN {use nqp;put nqp::getlexdyn(‘$/’)}
42
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ugexe No ??!! needed, just || 17:41
AlexDaniel m: say 42; BEGIN {use nqp;put nqp::getlexdyn(‘$/’).orig}
camelia say 42; BEGIN {use nqp;put nqp::getlexdyn(‘$/’).orig}
42
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AlexDaniel but .orig will :) 17:41
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AlexDaniel ___luke___: isn't cheating the whole point of code golf? :) 17:42
___luke___ ugexe: fair enough. However, A is not the empty string when $_ is 0. I slightly simplified my code.
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___luke___ Since I've started golfing, I golf by SE's rules. One of their quine rules is that you can't read your own source file 17:43
So I guess that has also become my "moral standpoint" 17:44
However, I think your solution looks really nice.
The long function name is a pity though
AlexDaniel yeah, and you also need BEGIN so that it is compile-time, otherwise it doesn't work 17:45
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___luke___ If you're interested, here's my current solution: codegolf.stackexchange.com/a/148419/63774. Maybe you see some golfing opportunities... 17:47
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AlexDaniel lol what a wonderful task 17:48
___luke___: doesn't look like you're saving anything by using ?? !! 17:52
___luke___: you can just use two “say“ statements with the same result
___luke___ But then I need to add 2 bytes to my range to specify that I want to start at 1 17:53
AlexDaniel ooh didn't see that 17:54
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AlexDaniel ___luke___: well, I'd write it like this: gist.github.com/AlexDaniel/aa9e295...cfedbb3ae1 17:57
___luke___ That's... different 17:58
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___luke___ That saves 1 byte 17:59
Nice use of the unnamed variable thing
Still trying to get used to that, since it's not in any previous language I've learned 18:00
AlexDaniel ___luke___: the really nice thing about it is xx
because in some cases you can use that instead of a for loop
and it makes a difference sometimes 18:01
___luke___ Yeah, though I don't really understand how that causes "say" to be executed 5 times...
AlexDaniel exactly!
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___luke___ I'll just accept that as a quirk of perl 6 18:09
AlexDaniel ___luke___: there's a way to save one more byte 18:10
___luke___ Is there a way to tell without testing when it will work and when it won't work?
AlexDaniel ___luke___: gist.github.com/AlexDaniel/aa9e295...cfedbb3ae1 18:11
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AlexDaniel ___luke___: but if I'm not mistaken, the saving comes from x$--+5 18:11
so you can do that in the previous solution as well
___luke___: as for your question, I don't really understand it
___luke___ Thanks a lot for that as well! 18:12
AlexDaniel though the last solution probably has some trailing whitespace, maybe
___luke___ Trailing whitespace doesn't matter 18:13
timotimo u: exclamation
unicodable6 timotimo, U+0021 EXCLAMATION MARK [Po] (!)
timotimo, U+00A1 INVERTED EXCLAMATION MARK [Po] (¡)
timotimo, 24 characters in total: gist.github.com/f691763288348d90bb...88ee836583
___luke___ But I just merged both your solutions
timotimo u: question 18:14
unicodable6 timotimo, U+003F QUESTION MARK [Po] (?)
timotimo, U+00BF INVERTED QUESTION MARK [Po] (¿)
timotimo, 28 characters in total: gist.github.com/c119dcc9fe2bc724f5...e06d44ec6d
timotimo m: say Bool.pick ⁇ 1 ‼ 2
camelia 5===SORRY!5=== Error while compiling <tmp>
Confused
at <tmp>:1
------> 3say Bool.pick7⏏5 ⁇ 1 ‼ 2
expecting any of:
infix
infix stopper
postfix
statement end
statement modifier…
timotimo bleh :)
___luke___ AlexDaniel: Is it okay if I post it on codegolf.stackexchange (giving proper credit of course)? 18:15
AlexDaniel no problem, that's exactly why I share this kind of stuff
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AlexDaniel (with credit or not, I don't care) 18:16
c: ed971df say Bool.pick ⁇ 1 ‼ 2 18:17
committable6 AlexDaniel, ¦ed971df: «2»
AlexDaniel timotimo: ↑
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timotimo there was a version that allowed that? 18:18
AlexDaniel yeah 18:19
timotimo it regressed?
AlexDaniel no, removed deliberately rt.perl.org/Ticket/Display.html?id...xn-1453776 18:20
___luke___ Another golfing idea: maybe I can change the "(==========)" and "(----------)" by using the .gist of some lists...
timotimo m: say <=====>
camelia =====
timotimo m: say <=====>.gist
camelia =====
timotimo m: say <=====>.perl
camelia "====="
timotimo not a list, i see 18:21
18:21 astronavt joined
Geth doc: jstuder-gh++ created pull request #1681:
Rewrite, remove inaccurate Range truncation info		 18:21
timotimo m: say <===== =>[0]
camelia =====
timotimo m: say <===== =>[0].gist
camelia =====
timotimo er, yeah
m: say <=====>.List.gist
camelia (=====)
timotimo loooooooooong
___luke___ m: say ("="x 10,) 18:22
camelia (==========)
___luke___ That seems more golfy
timotimo m: say "="x10xx1 18:25
camelia 5===SORRY!5=== Error while compiling <tmp>
Two terms in a row
at <tmp>:1
------> 3say "="7⏏5x10xx1
expecting any of:
infix
infix stopper
postfix
statement end
statement modifier…
timotimo m: say "="x\10xx\1
camelia 5===SORRY!5===
Confused
at <tmp>:1
------> 3say "="x\107⏏5xx\1
Other potential difficulties:
To refer to a positional match capture, just use $0 (numbering starts at 0).
Parenthesize as \(...) if you intended a capture of…
timotimo m: say "="x 10 xx 1
camelia (==========)
timotimo m: say 1Rxx "="x 10
camelia 5===SORRY!5=== Error while compiling <tmp>
Confused
at <tmp>:1
------> 3say 17⏏5Rxx "="x 10
timotimo m: say 1 Rxx "="x 10
camelia ==========
___luke___ m: say((<- = _>[$++]x(6,10,10)[$++],))xx 3
camelia (------)
(==========)
(__________)
timotimo wrong order, huh
that looks like you want the Z metaop 18:26
m: say((<- = _>Zx(6,10,10),))xx 3
camelia (---)
(---)
(---)
timotimo oops
m: say(<- = _> Zx (6,10,10))xx 3 18:27
camelia (------ ========== __________)
(------ ========== __________)
(------ ========== __________)
timotimo even worse!
oh, no, even better!
m: say(<- = _> Zx (6,10,10))
camelia (------ ========== __________)
timotimo m: .say for <- = _> Zx (6,10,10)
camelia ------
==========
__________
timotimo m: gist.say for <- = _> Zx (6,10,10)
camelia ()
()
()
timotimo m: .gist.say for <- = _> Zx (6,10,10)
camelia ------
==========
__________
timotimo ah, not lists any more
m: .say for <- = _> Zx (6,10,10) Zxx 1 18:28
camelia 5===SORRY!5=== Error while compiling <tmp>
Only identical operators may be list associative; since 'Zx' and 'Zxx' differ, they are non-associative and you need to clarify with parentheses
at <tmp>:1
------> 3.say for <- = _> Zx (6,10,10) Z…
timotimo m: .say for (<- = _> Zx (6,10,10)) Zxx 1
camelia (------)
timotimo m: .say for (<- = _> Zx (6,10,10)) Xxx 1
camelia (------)
(==========)
(__________)
timotimo it's *barely* shorter
m: .say for (<- = _>Zx(6,10,10))Xxx1
camelia 5===SORRY!5=== Error while compiling <tmp>
Missing expression for 'for' statement modifier
at <tmp>:1
------> 3.say for 7⏏5(<- = _>Zx(6,10,10))Xxx1
___luke___ Yeah, but then I need to fit it into the rest of the thing
timotimo m: .say for (<- = _>Zx(6,10,10)) Xxx 1
camelia (------)
(==========)
(__________)
timotimo yeah
___luke___ m: .say for (<- = _>Zx(6,10,10).List) 18:29
camelia ------
==========
__________
___luke___ m: .say for ((<- = _>Zx(6,10,10)).List)
camelia ------
==========
__________
timotimo it has to .List each in turn 18:30
so .List.say for example would do ti
___luke___ Yeah
timotimo btw, do you know the reverse join trick?
___luke___ Don't think so
timotimo m: say <( )>.join("hello, how are you")
camelia (hello, how are you)
timotimo it joins the "(" and ")" by putting the string in between
___luke___ I briefly tried that in one of my previous attempts, but it didn't work 18:31
timotimo don't think it helps here, but it's probably a neat trick in general
AlexDaniel it is, and that's the first time I hear about it XD
maybe because in most cases you'd probably do this anyway: 18:33
m: put ‘(’,"hello, how are you",‘)’
camelia (hello, how are you)
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___luke___ m: say <( )>.join("="x 10) 18:33
camelia (==========)
18:33 isBEKaml left
___luke___ m: say "(","="x 10,")" 18:34
camelia (==========)
timotimo it's true
but i love how it puts the parens right next to each other
then again, there's
m: say (1234).fmt: "(%s)"
camelia (1234)
timotimo m: say (1234).fmt: "<%s>" 18:35
camelia <1234>
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___luke___ m: say .fmt:"(%s)"for ("-"x 8,"="x 10, "_"x 10) 18:40
camelia 5===SORRY!5=== Error while compiling <tmp>
Confused
at <tmp>:1
------> 3say .fmt:7⏏5"(%s)"for ("-"x 8,"="x 10, "_"x 10)
expecting any of:
colon pair
___luke___ m: say .fmt: "(%s)"for ("-"x 8,"="x 10, "_"x 10)
camelia (--------)
(==========)
(__________)
timotimo i'm surprised you can put a postfix for after a method with colon form
___luke___ Yeah
Won't complain though ;P 18:41
timotimo positively surprised 18:42
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___luke___ say .fmt: "(%s)"for <- = _>Zx(6,10,10) 19:23
evalable6 (------)
(==========)
(__________)
Geth ecosystem: drforr++ created pull request #380:
Adding META entry for Format::Lisp		 19:24
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DrForr Travis run on the repo remotely as well, neato. 19:27
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Geth ecosystem: 83f3a359dd | (Jeff Goff)++ | META.list
Adding META entry for Format::Lisp
 19:36
ecosystem: 4e63a2b5dc | (Jeff Goff)++ (committed using GitHub Web editor) | META.list
Merge pull request #380 from drforr/drforr-Format-Lisp

Adding META entry for Format::Lisp
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Geth book: 9481b4d518 | (Moritz Lenz)++ | 2 files
Convert README to markdown
 19:50
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Geth book: 7e76ade5b2 | (Moritz Lenz)++ | README.md
README: add link to perl6book.com
 19:53
moritz I'm not reviving this zombie, just updating the README with pointers to modern resources 19:54
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s0me0ne-unkn0wn Okay, I'm probably too narrow-minded to realize that supply/wait concept. 20:27
p6: my $s = supply { emit "1"; emit "2"; say "tapped"; }; $s.tap( -> $v { say $v }); $s.wait;
camelia 1
2
tapped
tapped
s0me0ne-unkn0wn That is, when we're wait()ing for our supply, we're tapping the supply once again, re-running all the code inside supply{} and re-emitting everyting. 20:28
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s0me0ne-unkn0wn But in the real world supply{} code is not just "emit 1", it can include sql queries to remote servers and even side-effects like emitting an output of /dev/random 20:28
Do we really want to redo all the job just to make sure supply is done emitting?!
moritz m: my $s = supply { emit "1"; emit "2"; say "tapped"; }; $s.tap( -> $v { say $v }); 20:30
camelia 1
2
tapped
moritz m: my $s = supply { emit "1"; emit "2"; say "tapped"; done; }; $s.tap( -> $v { say $v }); $s.wait
camelia 1
2
tapped
tapped
moritz kinda surprised 20:31
s0me0ne-unkn0wn too 20:32
method wait(Supply:D:) { await self.Promise } 20:33
method Promise(Supply:D:) {
my $p = Promise.new;
my $v = $p.vow;
my $final := Nil;
my $t = self.tap:
-> \val { $final := val },
done => { $v.keep($final) },
quit => -> \ex { $v.break(ex) };
$p
}
The exact wait() code from 2017.10
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s0me0ne-unkn0wn ufobat: pls pay attention to that wait() behavior 20:43
ufobat ?
s0me0ne-unkn0wn ufobat: HTTP::Server::Ogre::HTTP1Protocol is affected 20:44
^^^
ufobat: supply{} returned to app() is tapped twice 20:45
ufobat the $body-supply.wait() thingy? 20:48
s0me0ne-unkn0wn Exactly
Not sure how to work around it 20:49
Probably Supply.grab()
ufobat why not done => { $conn.close() } in the call to .tap?
s0me0ne-unkn0wn Agree, much better 20:53
ufobat and quit => ... with the same code, just in case we're exiting somehow 20:54
does this double tap has any negative impact
i think the wait blocks somehow, right?
s0me0ne-unkn0wn Yes, look at a chatlog 20 messages up 20:55
moritz wait returns a promise
and a promise in sink context blocks
s0me0ne-unkn0wn A promise result indeed, which is the last value emitted by supply() 20:56
A promise result indeed, which is the last value emitted by supply{}
ufobat that's not so cool :-(
i am going to fix it now :)
s0me0ne-unkn0wn Thanks! Would be great. Very strange wait() behavior indeed. 20:58
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ufobat I am wondering where I did copy this code before.. 21:02
s0me0ne-unkn0wn, pushed, but didn't increase the version, fyi
s0me0ne-unkn0wn Thank you! 21:06
ufobat welcome 21:08
tyil when trying to install App::Cpan6 with zef, it says its missing Template::Mustache, but that's in the "depends" block in the META6.json, is there any reason zef is not installing Template::Mustache? 21:09
21:10 Guest57431 left
s0me0ne-unkn0wn tyil: Mine installed Template::Mustache but tells me Terminal::Readsecret is missing 21:13
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tyil hmm 21:13
21:13 Ven is now known as Guest38788
tyil that one seems to be truly missing from the depends list, that's my mistake 21:14
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tyil lets fix that first :> 21:16
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___luke___ m: print " .-@@-.\n (======)\n ";say ($_,)for <- = _>Zx(8,10,10);say(' 'x++$,'\/'x$--+5)xx 5 21:18
camelia .-@@-.
(======)
(--------)
(==========)
(__________)
\/\/\/\/\/
\/\/\/\/
\/\/\/
\/\/
\/
___luke___ Oh well, that looks like a nice ice cream with actual newlines 21:19
Anyways, that's 90 bytes, which ties it with the other approach
If anyone sees an opportunity for golfing, please let me know 21:21
tyil you can use say instead of print 21:22
oh nvm, you want some spaces after the last newline
buggable New CPAN upload: App-Cpan6-0.11.1.tar.gz by TYIL cpan.metacpan.org/authors/id/T/TY/...1.1.tar.gz 21:23
___luke___ Yep 21:24
Is there a function that mirrors a string?
moritz m: say 'abc'.flip 21:25
camelia cba
tyil mirror as in make the same, or reverse it?
___luke___ Reverse it
.flip is what I need
moritz flip
flip the dice!
or... something like that :-)
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___luke___ m: say for map:{$_~.flip}(" .-@"," (==="," (----","(=====","(_____");say(' 'x++$,'\/'x$--+5)xx 5 21:29
camelia 5===SORRY!5=== Error while compiling <tmp>
Unsupported use of bare "say"; in Perl 6 please use .say if you meant to call it as a method on $_, or use an explicit invocant or argument, or use &say to refer to the function as a noun
at <tmp>:1…
___luke___ m: .say for map:{$_~.flip}(" .-@"," (==="," (----","(=====","(_____");say(' 'x++$,'\/'x$--+5)xx 5
camelia ===SORRY!===
Cannot find method 'has_compile_time_value' on object of type NQPMu
___luke___ ?
m: .say for map:{$_~.flip},(" .-@"," (==="," (----","(=====","(_____");say(' 'x++$,'\/'x$--+5)xx 5 21:31
camelia ===SORRY!===
Cannot find method 'has_compile_time_value' on object of type NQPMu
___luke___ m: .say for (map:{$_~.flip},(" .-@"," (==="," (----","(=====","(_____"));say(' 'x++$,'\/'x$--+5)xx 5
camelia ===SORRY!===
Cannot find method 'has_compile_time_value' on object of type NQPMu
___luke___ I have no idea what this error means...
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___luke___ Either way, it's not going to work because this is already a few bytes too long, and .flip also doesn't reverse parentheses 21:35
s0me0ne-unkn0wn m: .say for (map {$_~.flip},(" .-@"," (==="," (----","(=====","(_____"));say(" "x++$,"\/"x$--+5)xx 5 21:36
camelia .-@@-.
(======(
(--------(
(==========(
(__________(
/////
////
///
//
/
Brumbazz Hi guys. I'm using AnyEvent-XMPP(perl5) in my perl6 project. So far I don't get any errors during compilation when I run my script, however after it print's some text is crashed with a "[2] 708 segmentation fault perl6 xmpp_who_am_i.pl"
21:36 ryn1x_ left
Brumbazz So my question is, how the hell do I debug that ? :/ Thanks in advance :> 21:36
It seems like the crash happens when I try to register a callback using AnyEvent's reg_cb() but I don't know how to do deeper debugging :/ 21:37
21:38 ___luke___ left 21:39 mattp__ left
tyil ===> Testing: LibraryMake:ver<1.0.0>:auth<github:retupmoca> 21:39
./test: error while loading shared libraries: libtommath.so.1: cannot open shared object file: No such file or directory
# Failed test 'Binary runs!' 21:40
this is bad, right?
21:43 cdg joined 21:46 MasterDuke left
tyil heh, I seem to have libtommath .42 21:48
rakudobrew build moar 2017.10 didn't complain about it, tho
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Brumbazz gdb says: #0 0x00007ffff4916793 in p5_is_wrapped_p6_object (my_perl=0x34dc9d0, obj=0x38c8488) at p5helper.c:849 22:06
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geekosaur ugh. I think you need to talk with nine 22:09
22:09 Guest38788 left
geekosaur (author of inline-p5 stuff) 22:10
Brumbazz geekosaur: ahh nice, thanks :>
geekosaur it does still occasionally throw these kinds of problems down in the guts of converting objects between p5 and p6, it's kinda nasty in there 22:11
Brumbazz I see :/
Does he usually come by IRC ?:>
22:11 MasterDuke joined
timotimo tyil: it should probably use the libtommath that moarvm was compiled with. that may be your system libtommath if you configured moarvm with --has-libtommath 22:12
geekosaur they are idling in here now, but apparently not around right now
Brumbazz geekosaur: Alright, thanks :> 22:13
geekosaur there's lways leaving messages with the bot, if you're on opposite sides of the world timezone-wise or etc.
tyil timotimo: I updated libtommath to use 1.0 and rebuild moar, seems to work again :>
geekosaur .tell nine [19 21:36:17] <Brumbazz> Hi guys. I'm using AnyEvent-XMPP(perl5) in my perl6 project. So far I don't get any errors during compilation when I run my script, however after it print's some text is crashed with a "[2] 708 segmentation fault perl6 xmpp_who_am_i.pl"
yoleaux geekosaur: I'll pass your message to nine.
Brumbazz geekosaur: ahh smort, thanks :>
thanks yoleaux :> 22:14
timotimo tyil: cool, but wouldn't moar install its libtommath to the system?
tyil I dont know, it seems something went wrong with it
I'm not too sure on the details going on with rakudobrew build, sorry 22:15
timotimo might need a specific library path
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ugexe m: say $*VM.config<tomlib> 22:34
camelia 3rdparty/libtommath/libtommath.a
s0me0ne-unkn0wn m: my $s = supply { emit False }; say $s.wait; 22:36
camelia False
s0me0ne-unkn0wn That Supply.wait() thing is COMPLETELY BROKEN
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timotimo jnthn: what is sigilles? :) :) 22:42
22:42 setty1 left, wamba left 22:43 Cabanossi joined
jnthn A typo? :) 22:44
MasterDuke jnthn: this was caught from a segv in bisectables tests. see anything helpful? gist.github.com/MasterDuke17/65904...20385edb6f 22:45
jnthn s0me0ne-unkn0wn: The example you just rn did exactly what is expected. 22:46
*an
*ran, even
MasterDuke: Not really, without any futher debug symbols 22:47
22:47 itaipu joined
MasterDuke will try to get them 22:48
22:48 benchable6 left, unicodable6 left, releasable6 left, quotable6 left, greppable6 left, evalable6 left, nativecallable6 left, bloatable6 left, statisfiable6 left, bisectable6 left, tangible6 left, committable6 left, coverable6 left, squashable6 left 22:50 mson left, sena_kun left 22:52 markmont left 22:55 ryn1x_ left
Geth doc: 4757c99431 | (Jonathan Worthington)++ (committed using GitHub Web editor) | doc/Type/Supply.pod6
Make Supply.wait and related docs more precise

Make it very clear that these methods all perform a `.tap` and start a flow of values. For those who understand the `Supply` model well already, it will be clear that this is the only way it could work, but there is a tendency to assume that the C<wait>, in particular, somehow could relate to an earlier tapping. Also correct the `wait` return value documentation, and describe the error semantics of other methods.		 23:02
synopsebot Link: doc.perl6.org/type/Supply
jnthn Hopefully that helps
Bah, thanks for not wrapping that to 72 columns, github. :/ 23:03
Geth doc: f323788c26 | (Tom Browder)++ (committed using GitHub Web editor) | doc/Language/glossary.pod6
add two more irc abbreviations
synopsebot Link: doc.perl6.org/language/glossary
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timotimo ouch 23:15
s0me0ne-unkn0wn jnthn: Thanks a lot, it would make it much more clear. The behavior shown may be expected by core developer but not by someone who's just reading docs and sees different result :) 23:17
jnthn s0me0ne-unkn0wn: Yeah, once I looked at the docs I much better understood the confusion.
They were just plain wrong for .wait, unfortunately
s0me0ne-unkn0wn The question remains, why the heck Supply.wait() is needed at all if we cannot event collect values emitted by tapped supply{}. Is't list() and grab() enough? 23:18
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jnthn Primarily, when all that's wanted is the side-effects, or when it's known that it's a one-value Supply 23:19
s0me0ne-unkn0wn Got it, thank you! 23:20
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jnthn s0me0ne-unkn0wn: Thanks for the IO::Socket::Async::SSL patch, btw ;) 23:23
*:) even
s0me0ne-unkn0wn Welcome! Much more have to be done there and I don't really know if the original behavior of importing PKCS12 whould be re-implemented. Never seen it ever been used by anyone :) 23:25
timotimo :my $*GOAL := $<sym> eq '??' ?? '!!' !! '‼'; 23:27
this amuses me
jnthn Help is very much welcome on that module; I'm far from the ideal person to be maintaining it in that I'm not particularly well versed in the area. 23:30
I just happened to have the nativecall and async background to make the thing work. :) 23:31
MasterDuke jnthn: is this any better: gist.github.com/MasterDuke17/0312d...facc45343c ?
jnthn Oh, that's...interesting 23:32
Though unfortunately it could still be a fairly generic case of memory corruption 23:33
Do you have chance to run it in a MoarVM with #define MVM_GC_DEBUG 1
(Just tweaking the flag in src/gc/debug.h and make install should do it) 23:34
MasterDuke i'll try, but my previous attempt at rebuilding MoarVM inside rakudobrew didn't work very well
jnthn Make sure not to re-run the configure script :)
timotimo jnthn: is there any benefit to keeping a third worklist that just gives us the root object for every address we put into the regular worklist?
jnthn timotimo: For what purpose? 23:35
s0me0ne-unkn0wn I'm very new to Perl 6 so I need to master nativecalls better before proceeding with it... For example, I have no idea how to declare nativecall which returns openssl's STACK_OF(X509) by reference. Going to dig some docs :)
timotimo so, like, we could look up what was responsible for putting the link in?
in case of a crash; this would be compile-time-optional, of course
jnthn Oh
Well, in theory perhaps yes, but we already have a debug version of add_to_worklist
Which MVM_GC_DEBUG turns on
timotimo ok, but what i'm worrying about is the distance between adding something to the worklist and when it asplodes 23:36
jnthn And we can detect plenty of issues at that point
timotimo that's fair
tyil "..." yields no results on docs.perl6.org, what would be the recommended page to use instead for its use in methods ( `{ ... }` )
jnthn Like in this case, we could look at the sc index of the object being added in the debug version of add to worklist, for example
MasterDuke jnthn: i don't remember, does that create any extra output? 23:37
jnthn Though if it's a totally busted object header, then there's a good chance the existing checks (like for bogus thread ID) will catch it
MasterDuke: It panics
So in gdb you'd b MVM_panic
MasterDuke k
jnthn And then run it
Or in perl6-gdb-m, Ctrl+C, b MVM_panic, and continue :)
MasterDuke heh. i'm a couple layers deep in processes, but i'll see what i can do 23:38
timotimo i wonder about putting in redzones between header and body of objects and maybe in front of the header, too
either to mark them in valgrind or to check their contents every now and then for out-of-bounds writes
AlexDaniel jnthn: should I create a ticket for that? There's no useful way to reproduce it…
I mean, we're seeing it fail every time here in whateverable tests, but that includes so much stuff… 23:39
jnthn AlexDaniel: On the one hand, a ticket to track a bug is good. On the other hand, a ticket that can't provide a way to reproduce the issue isn't liable to go far. :S 23:42
AlexDaniel: How hard is it to run the test suite?
Does it actually need to connect to IRC?
AlexDaniel jnthn: yes, it needs a local irc server + a few hundred rakudo builds… 23:43
jnthn Goodness
I think, given how stuck I am generally for time, there's very little chance of me reproducing that setup
AlexDaniel jnthn: oh, and then tens of modules…
MasterDuke hm. is there a way to set a breakpoint via a config file?
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AlexDaniel it is kind of tracked here: github.com/perl6/whateverable/issu...-345493646 23:44
jnthn Given an SSH account on a machine where that's set up, I might well be able to make progress
Well, of course provided there's debug tools on that machine
timotimo MasterDuke: the exprjit has something, but it's not necessarily what you're looking for
AlexDaniel that's easy to do
jnthn OK, then file the ticket and say who to contact for it :)
AlexDaniel jnthn: which key? github.com/jnthn.keys
jnthn ah, or that 23:45
lemme look
MasterDuke it happens in a spawned process and for some reason won't restart after it first segvs and then i `b MVM_panic`
jnthn lol, it doesn't tell me the names of those keys
Ulti mst: is this video under your control?
www.youtube.com/watch?v=ENvmfoIclU8
jnthn AlexDaniel: So, "whichever one has fingerprint b2:63:d0:dd:99:b2:28:34:3d:0a:ae:69:14:c7:3d:3f" :P 23:46
Otherwise, I can tell you tomorrow when I'm at the machine I spent most of my time working at :) 23:47
MasterDuke jnthn: fyi, /home/bisectable/git/whateverable/t/lib/Testable.pm6 line 45 was edited to execute perl6-gdb-m 23:48
AlexDaniel jnthn: I'll just add all of them. Big deal.
jnthn AlexDaniel: I was wondering whether to cull any, and then realized that they're all places I hack :) 23:49
And so I'm using the bunch :)
AlexDaniel jnthn: what about ssh [email@hidden.address] 23:50
success or not? Or you can't try now?
jnthn MasterDuke: If you can specify gdb args then you can pass -x foo where foo contains commands, iirc
AlexDaniel: Yes, that works 23:51
AlexDaniel jnthn: so you can run the tests with: perl6 t/bisectable.t 23:52
and it takes time… but once it reaches “Did you mean …” tests it will crash 23:53
the actual process that crashes is started from the file mentioned by MasterDuke
jnthn is impressed that these bots have an apparently good size test suite, even if it needs quite a lot to run 23:54
p sc_idx 23:55
$1 = <optimized out>
well darn :)
23:56 kitsunenokenja left
jnthn sc = {sc_idx = 1484589880 23:56
...well, yeah, that's on the large size... 23:57
m: say 148.base(2) 23:59
camelia 10010100

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