»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.
MasterDuke heh. i bet this is the culprit github.com/rakudo/rakudo/blob/mast...#L422-L424 00:02
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japhb RT#128655 00:28
synopsebot RT#128655 [open]: rt.perl.org/Ticket/Display.html?id=128655 [OPTIMIZER] Mixup in candidates through optimizer
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japhb Seems like that one's do for a re-look. 00:30
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japhb With jnthn++ working on optimization, I wonder if that's LHF for him now ... 00:30
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Geth doc/edits: 5758cc236a | (Antonio Quinonez)++ | doc/Language/operators.pod6
Adjust some grammar
 01:57
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travis-ci Doc build passed. Antonio Quinonez 'Adjust some grammar' 02:14
travis-ci.org/perl6/doc/builds/346107439 github.com/perl6/doc/commit/5758cc236a92
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shinobi-cl Hi all... 03:50
m: class C { has $!empty = "-"; multi sub trait_mod:<is>(Variable:D, :$default!) { $!empty = $default; } has @.data; method new(@data) { self.bless(data=>@data); } }; my $c is default ('N/A') = C.new([1,Nil,3,4]); say $c.perl; 03:51
camelia 5===SORRY!5=== Error while compiling <tmp>
Variable $!empty used where no 'self' is available
at <tmp>:1
------> 3d:<is>(Variable:D, :$default!) { $!empty7⏏5 = $default; } has @.data; method new(@d
shinobi-cl m: class C { has $empty = "-"; has @.data; method new(@data) { self.bless(data=>@data); } }; my $c is default ('N/A') = C.new([1,Nil,3,4]); say $c.perl;
camelia 5===SORRY!5=== Error while compiling <tmp>
Signatures as constraints on variables not yet implemented. Sorry.
at <tmp>:1
------> 3a=>@data); } }; my $c is default ('N/A')7⏏5 = C.new([1,Nil,3,4]); say $c.perl;
shinobi-cl i understand that the error says that is not implemented. i just wonder if that would be the right way to call is default when creating an object..... 03:52
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shinobi-cl the idea is to be able to pass a default value for empty elements to my class without using a parameter to the constructor but instead using the trait syntax... does that makes sense? 04:11
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Zoffix shinobi-cl: the error is just because you've used too many spaces 04:16
m: class C { has $empty = "-"; has @.data; method new(@data) { self.bless(data=>@data); } }; my $c is default('N/A') = C.new([1,Nil,3,4]); say $c.perl;
camelia C.new(data => [1, Any, 3, 4])
Zoffix m: class C { has $empty = "-"; has @.data; method new(@data) { self.bless(data=>@data); } }; my $c is default('N/A') = C.new([1,Nil,3,4]); say $c.perl; $c = Nil; say $c.perl
camelia C.new(data => [1, Any, 3, 4])
"N/A"
Zoffix shinobi-cl: you want the `is default` that's applied on $c to function as the default for empty cells? So it comes out as `[1, 'N/A', 3, 4]`? I don't think that'll work, as it's constructed before it ever gets to the variable. 04:17
shinobi-cl: and another mistake you're making is `[1,Nil,3,4]`. That never arrives as a `Nil` to your class, but as an `Any` 04:20
It's using the `is default` of the Array and the default default is Any 04:21
m: dd [1,Nil,3,4]
camelia [1, Any, 3, 4]
Zoffix m: dd (1,Nil,3,4)
camelia (1, Nil, 3, 4)
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Zoffix shinobi-cl: what I said on reddit is for you to return Lists with Nils in them so that the receiver of data would be able to use is default on their arrays 04:24
shinobi-cl basically. im tryin to use "is default" to populate a private variable that will be used to fill 'empty' cells. Those empty cells dont come from the original data, but instead from the construction process inside my class. 04:25
Yes, i changed all the Anys to Nils by your suggestion :) 04:26
crudely, the idea is something like this: m: class C { my $empty = "-"; multi sub trait_mod:<is>(:$default!) { $empty = $default; }; has @.data; method new(@d) { my @r; for @d {push @r, ($_ % 2 == 0)??$_!!$empty}; self.bless(data=>@r)} }; my $c = C.new([1,2 ,3,4]); say $c.perl; my $c2 is default('N/A') = C.new([1,2 ,3,4]); say $c2.perl; 04:28
m: class C { my $empty = "-"; multi sub trait_mod:<is>(:$default!) { $empty = $default; }; has @.data; method new(@d) { my @r; for @d {push @r, ($_ % 2 == 0)??$_!!$empty}; self.bless(data=>@r)} }; my $c = C.new([1,2 ,3,4]); say $c.perl; my $c2 is default('N/A') = C.new([1,2 ,3,4]); say $c2.perl;
camelia Cannot allocate memory
shinobi-cl oops
Zoffix Right, the information from `is default` on $c is not available inside your constructor. It doesn't even know whether you're going to store it into a variable
(without hacks)
shinobi-cl oh, i see. well,, just wanted to see it that was possible :) I added more functinality based on your suggestions, btw. github.com/shinobi/Data-StaticTabl...method-new Thanks again for the feedback 04:30
Zoffix m: class C { has $.empty = "-"; has @.data; method new(@data, \SELF) { SELF = self.bless: :@data, :empty(SELF.VAR.default); } }; C.new: [1,Nil,3,4], my $c is default('N/A'); say $c.perl 04:35
camelia C.new(empty => "N/A", data => [1, Any, 3, 4])
Zoffix that works, but is a really weird interface :)
shinobi-cl so this would work for any trait then :) ? what's so special about "trait_mod" ? 04:41
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Zoffix trait_mod is just a category of subs that let you add new candidates to traits 04:43
shinobi-cl and then what's the use of them if you can't modify internal variables in your own class? how would i then implement my own traits? 04:44
Zoffix You can, you just never called your traits 04:45
m: class C { my $empty = "-"; multi sub trait_mod:<is>(Variable:D, :$default!) is export { $empty = $default; nextsame }; has @.data; method new(@d) { my @r; for @d {push @r, ($_ % 2 == 0)??$_!!$empty}; self.bless(data=>@r)} }; import C; my $c is default('N/A') = C.new([1,2 ,3,4]); say $c.perl 04:46
camelia C.new(data => ["-", 2, "-", 4])
Zoffix Don't use that though. It'd affect `$empty` for all instances of your class and it'd affect them any time someone uses `is default`, even for purposes other than instantiating your class 04:47
Just take a named param to the constructor. 04:48
shinobi-cl i see. thanks Zoffix++ 04:50
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Geth whateverable: 1c8633d6e7 | (Aleks-Daniel Jakimenko-Aleksejev)++ | 5 files
Added a sneak peek for quotable

It will now print something like:
  “12 messages (2010-01-27⌁2016-01-21): …”
Also removed hardcoded ‘Found nothing!’ message from perl6-grep (and added tests for both greppable and quotable that were using this sub).		 07:43
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Geth doc/master: 9 commits pushed by (Luca Ferrari)++ 08:15
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Geth doc: ae94bbea71 | (Luca Ferrari)++ | doc/Language/regexes.pod6
Better explaination of a \n meaning in regular expression.

Partially due to the issue #1790. I guess the original author's intent was to specify that \r\n can be either mangled thru a regex or an IO operation.		 08:38
synopsebot Link: doc.perl6.org/language/regexes
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timotimo MasterDuke: there's an int,int --> int and an Int:D,Int:D --> Int:D candidate for &infix:<%>, though 08:50
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Geth doc: 912e133a3e | (Luca Ferrari)++ | doc/Type/Mu.pod6
Split sub defined and method defined.

Fix issue #1800.		 10:58
synopsebot Link: doc.perl6.org/type/Mu
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tyil .tell zoffix Thanks for the headsup, I've pushed github.com/scriptkitties/perl6-app...ixt/pull/2 12:33
yoleaux 25 Feb 2018 07:18Z <Zoffix> tyil: you have several bugs in your Appsixt module. Variables inside «» gets split on spaces within their values so, say, spaces in paths will break the path into separate args (`my $source = 'bar ber'.IO; dd «foo {$source.IO.path}»;`): gist.github.com/Whateverable/576bc...e13e4a7f26
tyil: I'll pass your message to zoffix.
AlexDaniel tyil: this doesn't make much sense tbh: say "tar czf \"$output\" {@tar-flags} ."; 12:36
tyil why?
AlexDaniel because paths can contain double quotes :) I know it's just something to show to the user but… eh…
tyil paths can contain pretty much anything, so I have to pick something
AlexDaniel iirc you only have to “escape” single quotes when using single quotes 12:37
tyil I don't want to waste too much effort on something that's just logging output, since it already makes the intent clear
yes, but what if the path contains a single quote then ;) 12:38
jkramer AlexDaniel: If you escape single quotes you'll also need to escape the escape character ;) 12:39
AlexDaniel jkramer: it's not escaping, it's “escaping” :)
you can't escape *anything* in single quotes
jkramer Although it's trivial and I'm sure there's a good shell-quote module :)
AlexDaniel there's non IIRC 12:40
none*
tyil it's in a say, so it's not like the shell is being called there
it still shows the intent, which is what I intended it to do
jkramer Huh weird, I always you could escape single quotes with '\ in a '' in shells 12:42
*thought
ilmari you need to do '\'' 12:43
AlexDaniel tyil: that's k, but I think you can also call .perl on it
ilmari: or '"'"' if you want everyone to freak out
ilmari AlexDaniel: yeah, that's prettier, but more confusing 12:44
tyil hmm, doing a .perl could work
jkramer tyil: I usually use <...> when dumping values for logs, it's visually pleasing and </> are unlikely to show up in most kinds of values :)
tyil but < ... > doesn't show the value of vars in them, do they? 12:45
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tyil m: my $foo = "a"; dd < some $foo > 12:46
camelia ("some", "\$foo")
tyil m: my $foo = "a"; dd << some $foo >>
camelia ("some", "a")
jkramer tyil: No I mean in output, like say "foo=<this>, bar=<that>, ..."
masak m: my $file = "name-with-a-quo'te"; say $file.subst(:g, /"'"/, "'\\''") 12:47
camelia name-with-a-quo'\''te
tyil masak: .perl seems simpler then :p 12:48
masak doesn't target the shell-quoting problem though, does it?
mostly I meant to show that a shell quoting library could very well start as that one-liner there ;) 12:49
tyil ah
masak s/target/address/ -- my English is rusty :P
tyil I mean, it's still just output, not a shell command, so I don't really consider is a shell quoting problem
jkramer masak: Needs more quotes though :)
m: my $file = "name-with-a-quo'te"; say "'" ~ $file.subst(:g, /"'"/, "'\\''") ~ "'" 12:50
camelia 'name-with-a-quo'\''te'
masak aye, that's better :)
&safe-single-quote
masak .oO( ship it )
moritz dives into the wonderful world of Angular development 12:51
jkramer m: my $file = "name-with-a-quo'te"; say $file.subst(:g, /"'"/, "'\\''").subst(:g, /^|$/, "'")
camelia 'name-with-a-quo'\''te'
tyil having done angular for school, I must say I find it one of the least nice js frameworks in existence
jkramer m: use MONKEY-TYPING; augment class Str { method quote { .subst(:g, /"'"/, "'\\''").subst(:g, /^|$/, "'") } }; "quo'te".quote.say 12:56
camelia No such method 'subst' for invocant of type 'Any'
in method quote at <tmp> line 1
in block <unit> at <tmp> line 1
jkramer m: use MONKEY-TYPING; augment class Str { method quote { $.subst(:g, /"'"/, "'\\''").subst(:g, /^|$/, "'") } }; "quo'te".quote.say
camelia 'quo'\''te'
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moritz it's also quite the mindset shift. "ng new foo; du -sch foo" comes back with nearly 600MB 12:57
jkramer m: use MONKEY-TYPING; augment class Str { method quote { $.subst(:g, /"'"/, "'\\''").subst(:g, /^|$/, "'") } }; augment class Mu { method quote { $.Str.quote } }; IO::Path.new("foo/'bar").quote.say 12:58
camelia IO::Path is disallowed in restricted setting
in sub restricted at src/RESTRICTED.setting line 1
in method new at src/RESTRICTED.setting line 32
in block <unit> at <tmp> line 1
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jkramer m: use MONKEY-TYPING; augment class Str { method quote { $.subst(:g, /"'"/, "'\\''").subst(:g, /^|$/, "'") } }; augment class Mu { method quote { $.Str.quote } }; Hash.new(lol => 123, bar => 'baz').quote.say 12:59
camelia No such method 'quote' for invocant of type 'Hash'. Did you mean any of these?
note
quote

in block <unit> at <tmp> line 1
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jkramer Are augmented methods not inherited? 13:01
lizmat jkramer: they are, sort of 13:05
you would need to actually also augment any child classes
m: use MONKEY; augment class Cool { method foo { "foo" } }; say 42.foo 13:06
camelia No such method 'foo' for invocant of type 'Int'. Did you mean 'foo'?
in block <unit> at <tmp> line 1
lizmat m: use MONKEY; augment class Cool { method foo { "foo" } }; augment class Int {}; say 42.foo 13:07
camelia foo
Geth doc: 15034eedf4 | (Will "Coke" Coleda)++ | doc/Type/IO/CatHandle.pod6
fix typo
synopsebot Link: doc.perl6.org/type/IO::CatHandle
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lizmat jkramer: this is basically a result of child classes knowing about their parents, but parent classes not knowing about their children 13:07
jkramer Ah 13:09
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jkramer Hmm, so I guess there's also not Mu.give-me-all-child-classes-so-i-can-augment-them-all 13:09
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[Coke] can probably get a list of all classess in the current scope and work up. 13:10
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jkramer Ah nevermind, I just wanted to play with the quote thing a bit :) 13:11
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Geth doc/master: 4 commits pushed by (Luca Ferrari)++ 13:20
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masak moritz: I see what they are aiming for with Angular. I think it's not a bad design per se, but I've yet to work on a big-enough project where investing in all that DI and infrastructure pays off. 13:29
meanwhile, React has kind of convinced me that a few well-chosen primitives and some FP-think can get you very far. 13:30
if I were to go for an opinionated framework, I'd probably try out Ember (which isn't a majority choice, but seems very well-thought-out)
(end of unsolicited opinion)
moritz: what are you building? :) 13:31
moritz masak: so far I'm just trying to learn it :) Then I'll be building a web frontend for our CMDB 13:33
which already exists as a hybrid between angularjs 1.* and angular 4
masak moritz: I've been doing some Angular consulting lately. but I find that to a large extent it consists of teaching JavaScript and TypeScript. ;) 13:35
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moritz masak: I hope I'll be learning that along the way too :-) 13:41
masak TypeScript is perhaps the nicest aspect of the new Angular ;) 13:43
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Geth doc: antquinonez++ created pull request #1801:
Adjust grammar.		 14:54
doc: 24a20d44f2 | (Antonio Quinonez)++ (committed by Moritz Lenz) | doc/Language/operators.pod6
Adjust grammar.
 14:55
synopsebot Link: doc.perl6.org/language/operators
AlexDaniel I think github.com/perl6/doc/pull/1801 needs a review from a native English sprecher :) 14:59
ah, it was merged already
okay
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moritz I checked a few samples, and found the changes to be improvements 15:00
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_fran_ I built rakudo-star-2018.01 with gcc on debian on termux on android 6.0.1. Invocation of perl6 or perl6-m in interactive repl-mode gives "Bus Error", but only after modules are built. Rakudo binary from debian is working. I suspect Linenoise to be responsible. Is it autoloaded and how to prevent that? 16:18
jkramer Bus error sounds familiar :) 16:25
github.com/rakudo/rakudo/issues/1554
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stmuk _fran_: bet.github.io/perl6-android-gnuroot.txt may help 16:41
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stmuk note I havn't yet tried it yet but I met someone in a restaurant who said his friend built ok on android :) 16:42
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Geth doc: d311d565ab | (Luca Ferrari)++ | doc/Type/Mu.pod6
Change 'defined' to 'declared' when documenting method signatures.

Applies to Mu.defined.		 16:55
synopsebot Link: doc.perl6.org/type/Mu
Geth doc: 97e2a9fe92 | (Luca Ferrari)++ | doc/Type/Mu.pod6
Move routine 'defined' after documentation of method Mu.defined.

Could be a fix to issue #1800 ?
doc: 1bf8646a4d | (Luca Ferrari)++ | doc/Type/Mu.pod6
Reword 'Defined as' to 'Declared as' in Mu.Capture.
 16:57
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buggable New CPAN upload: App-Assixt-0.1.4.tar.gz by TYIL cpan.metacpan.org/authors/id/T/TY/...1.4.tar.gz 20:44
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hahainternet in a code golf stack overflow post from last week, there's a snippet of code: `.rotate(set(0,+?.[0],-?.[4]).pick)` what's going on with `+?.[0]` 21:01
lizmat m: say +"42" 21:02
camelia 42
lizmat m: say +?"42"
camelia 1
lizmat I think it's just that: making sure you get a 0 or 1 ?
hahainternet hmm, i'd like to find it in the docs if you know where lizmat 21:03
ah, symbolic unary precedence section 21:04
cheers :)
lizmat hahainternet++ 21:05
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lizmat And another Perl 6 Weekly hits the Net: p6weekly.wordpress.com/2018/02/26/...-cheese-d/ 21:50
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MasterDuke timotimo: not sure what you mean. i made all variables ints and the int,int candidate wasn't being called 22:06
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MasterDuke and the reason i believe is that +< and +&, which were used in all the expressions that also had a %, don't currently have a int,int candidates 22:07
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MasterDuke however, what's even odder, is that i uncommented the int,int candidates for +< and +& and the profile is still showing the Int,Int versions of everything 22:10
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thundergnat \o perl6 22:36
I have a perl 6 script for a Rosettacode task that reliably works under 2017.11 and earlier but reliably fails under 2017.12 and later. 22:38
I've spent the last few days feebly trying to figure out what has changed to cause the failure but am not having much luck.
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thundergnat The weird thing is it doesn't fail right away, it succeeds for about 200 iterations and _then_ fails. 22:39
(It is downloading revisions for the various rosettacode tasks to find the first revision.) 22:40
Anyway if anyone wants to take a look and see if they may have any suggestions, I would be grateful. 22:41
Gist of the failing script: (cut down a bit) gist.github.com/thundergnat/d70596...ffe0b24639
I'm not online very much but I read the logs pretty regularly. 22:42
El_Che thundergnat: there is a bot that to .tell $nick that can remember the answer until you come back 22:43
thundergnat El_Che Yeah, I know... but thanks.
El_Che thundergnat: I am pretty sure someone will know more, as there is only a difference of 2 releases 22:45
thundergnat: alternatively, you could raise an issue as it may be a regression
thundergnat The script doesn't seem to fail due to the version of HTTP::UserAgent or JSON::Fast loaded. (I tried rolling each back separately) Only the compiler version seems to affect it.
El_Che github.com/rakudo/rakudo/issues 22:46
thundergnat El_Che Yeah, it seems to be a regression, but there is a distinct possibility I am doing something stupid too.
El_Che it would be strange that the stupid part wasn't that stupid 2 releases ago :) 22:48
AlexDaniel hello 22:51
thundergnat \o
AlexDaniel let's bisect it maybe
it depends on HTTP::UserAgent which is not cool, but still can be done :) 22:52
let's see…
thundergnat I tried various versions of HTTP::UserAgent and JSON::Fast and they don't seem to affect it. Only the compiler makes a difference. 22:53
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thundergnat Though I should have mentioned... the failure shows up as a fault in HTTP::UserAgent - Too few positionals passed; expected 2 arguments but got 1 in method get-proxy (HTTP::UserAgent) line 384 22:57
Thats with H::U ver 1.1.38. It gets the same fault (though with different line numbers ) with different versions of HTTP:UserAgent. 22:58
Changing the compiler to 2017.11, it works with both UA 1.1.38 and 1.1.37. (That's all I tested.) 22:59
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timotimo thundergnat: if it only breaks after a certain number of iterations, try setting the MVM_SPESH_DISABLE in the environment and see if it keeps working 23:08
thundergnat set MVM_SPESH_DIABLE=TRUE or some such? 23:09
^S
AlexDaniel c: 2017.11 gist.githubusercontent.com/AlexDan...authors.p6
committable6 AlexDaniel, Successfully fetched the code from the provided URL.
AlexDaniel, ¦2017.11: «TERM environment variable not set.␤The spawned command 'clear' exited unsuccessfully (exit code: 1)␤ in block <unit> at /tmp/hfOZ70j3LF line 32␤␤ «exit code = 1»»
AlexDaniel errr?
thundergnat You may need to remove / comment out line 20 23:10
AlexDaniel c: HEAD gist.githubusercontent.com/AlexDan...authors.p6
committable6 AlexDaniel, Successfully fetched the code from the provided URL.
AlexDaniel, ¦HEAD(838782b): «TERM environment variable not set.␤The spawned command 'clear' exited unsuccessfully (exit code: 1)␤ in block <unit> at /tmp/TAi1LurDZN line 32␤␤ «exit code = 1»»
timotimo thundergnat: can be anything, except the empty string
i usually set it to "yes"
AlexDaniel c: 2017.11 gist.githubusercontent.com/AlexDan...authors.p6
committable6 AlexDaniel, Successfully fetched the code from the provided URL.
AlexDaniel, ¦2017.11: «Retreiving task information...␤1 Task: File input/output␤«timed out after 10 seconds» «exit signal = SIGHUP (1)»» 23:11
AlexDaniel gah!
thundergnat Unfortunately, it takes about 30 seconds to fault
_fran_ RAKUDO_LINE_EDITOR=none perl6 will start without Linenoise or Readline. Without that I get "Bus Error". 23:12
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MasterDuke timotimo: catch my comments earlier? 23:14
timotimo yeah. don't know what's up with that :( 23:15
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MasterDuke i even added prints in the native versions, they're definitely not getting hit 23:16
which seems crazy
AlexDaniel thundergnat: sorry, what's the output when it fails? 23:17
thundergnat AlexDaniel: Setting MVM_SPESH_DISABLE true doesn't seem to change anything.
AlexDaniel gist.github.com/Whateverable/f0acc...d524806477 this? 23:18
thundergnat AlexDaniel: yes
AlexDaniel: It varies failing on task 202 to 209, so it isn't a specific request that does it. 23:20
timotimo that is a big relief 23:21
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AlexDaniel Geth: ver github.com/rakudo/rakudo/commit/f78fd7c17 23:53
Geth AlexDaniel, version bump brought in these changes: github.com/perl6/nqp/compare/2017....7-gf1b2692
AlexDaniel Geth: ver github.com/perl6/nqp/commit/f1b269...11012303cb
Geth AlexDaniel, version bump brought in these changes: github.com/MoarVM/MoarVM/compare/2...7-gfac2999
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AlexDaniel thundergnat: what about MVM_SPESH_INLINE_DISABLE=1 23:56
thundergnat AlexDaniel: Let me give it a try.
AlexDaniel oh, you already tried with MVM_SPESH_DIABLE … then it should be same
thundergnat: see, I bisected it: gist.github.com/Whateverable/5fb5b...05e797f959 23:57
that took a bit of human labour :)
thundergnat: so it's bad on f78fd7c17 but good on its parent 23:58
thundergnat: can you file a ticket please?
thundergnat MVM_SPESH_INLINE_DISABLE=1 results in the same failure mode. (slower, but same failure)
AlexDaniel weird 23:59
but okay
thundergnat AlexDaniel: Sure. Thanks for looking into this for me.

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