IRC log for #perl6, 2012-07-07

Time	Nick	Message
00:01		lue joined #perl6
00:01	lue	hello world o/
00:04	sorear	lue!
00:04	lue	hi sorear o/
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00:57	dalek	nqp/toqast: 407a1cf \| pmichaud++ \| src/HLL/Compiler.pm:
00:57	dalek	nqp/toqast: Update stagestats to use a bitmask instead of levels.
00:57	dalek	nqp/toqast: 0x02 = display memory and pmc allocation
00:57	dalek	nqp/toqast: 0x04 = force gc sweep before displaying stats
00:57	dalek	nqp/toqast: 0x08 = pause between stages
00:57	dalek	nqp/toqast: review: https://github.com/perl6/nqp/commit/407a1cf7a9
01:14	pmichaud	arggh, pushed to the wrong branch.
01:14	pmichaud	I'll cherry-pick it into master.
01:16	dalek	nqp: a4165a9 \| pmichaud++ \| src/HLL/Compiler.pm:
01:16	dalek	nqp: Update stagestats to use a bitmask instead of levels.
01:16	dalek	nqp: 0x02 = display memory and pmc allocation
01:16	dalek	nqp: 0x04 = force gc sweep before displaying stats
01:16	dalek	nqp: 0x08 = pause between stages
01:16	dalek	nqp: review: https://github.com/perl6/nqp/commit/a4165a9eb6
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02:04		Lard joined #perl6
02:09	Lard	Hi guys, Is there something similar to moose type coercions in perl6?
02:10	Lard	I can't find any docs on it...
02:11	Lard	"is also" is mentioned here https://gist.github.com/247656 but I can't see that documented anywhere
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02:17	sorear	Lard: no.
02:18	sorear	the closest we have are coerced types, like has Int() $.foo
02:18	sorear	you can initialize $.foo with any value, and the .Int method will be called
02:18	sorear	but you can't do custom coercers like Moose :(
02:18	sorear	also I'm not sure that anyone implements coerced types yet.
02:19	sorear	what you can do today is write a custom BUILD method which initializes the attributes
02:19	Lard	sorear: ah ok thanks... I'll see if it that works now...
02:19	sorear	submethod BUILD(:$foo) { $!foo = $foo.Int }
02:19	Lard	really I couldn't get BUILD to work....
02:20	Lard	I do submethod BUILD ( :$foo ) {$!bar = $foo;}
02:21	Lard	having declared bar earlier and it wasn't working for me...
02:22	Lard	It's sad that something like type coercions isn't in perl6...I loved that part of moose
02:24	sorear	it's sad that perl 6 hasn't bothered to learn from the changes Moose made after being forked
02:24	sorear	perl 6 doesn't even have _required attributes_
02:25	Lard	yeah I saw the = die "blah" but I prefer the declarative moose style
02:25	sorear	eh. I shouldn't dump all my complaints on the new person.
02:26	Lard	haha
02:29	sorear	weclome!
02:29	Lard	thanks :)
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02:33	pmichaud	https://gist.github.com/3063969 # does this work as a Foo($value) coercer?
02:34	pmichaud	then we could have my Foo() $x; such that any value assigned to $x passes through Foo(...) first
02:35	pmichaud	although I guess the resulting value would need to be blessed into Foo to satisfy the type constraint.
02:36	sorear	let's add to Mu/Any multi postcircumfix:<( )>($x) { $x."{self.^name}"() }
02:36	sorear	now you can implement either Type() or .Type, with Type() multis taking precedence
02:37	sorear	although we don't currently have a good way to define a ."Foo::Bar" method in Perl 6
02:37	pmichaud	I'm guessing you really want multi postcircumfix:<( )>(Mu:U: $x) there, though.
02:38	pmichaud	otherwise we're defining postcircumfix on... well, everything :-)
02:43	sorear	hrm.
02:43	sorear	http://irclog.perlgeek.de/perl[…]0-07-16#i_2559776
02:44	sorear	I recollected this as being much more of unilateral shoot-down than it actually was
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03:40	quietfanatic	Hm, is there a way to do a (function-style) pattern match on an object with attributes?
03:40	quietfanatic	I know you can do it with an array.
03:41	quietfanatic	perl6: sub sayattrs ([*%attrs]) { say %attrs.perl }; class Vec { has $.x; has $.y; }; sayattrs(Vec.new(x => 1, y => 2))
03:41	p6eval	niecza v19-12-gf36d743: OUTPUT«Unhandled exception: Nominal type check failed in binding '' in 'sayattrs'; got Vec, needed Positional␤ at /tmp/L__dOahayc line 0 (sayattrs @ 1) ␤ at /tmp/L__dOahayc line 1 (mainline @ 7) ␤ at /home/p6eval/niecza/lib/CORE.setting line 3918 (ANON @ 3) ␤ …
03:41	p6eval	..rakudo 57eaaa: OUTPUT«Nominal type check failed for parameter ''; expected Positional but got Vec instead␤ in sub sayattrs at /tmp/MZ8UbWdvP6:1␤ in block <anon> at /tmp/MZ8UbWdvP6:1␤␤»
03:41	quietfanatic	perl6: sub sayattrs ({*%attrs}) { say %attrs.perl }; class Vec { has $.x; has $.y; }; sayattrs(Vec.new(x => 1, y => 2))
03:41	p6eval	niecza v19-12-gf36d743: OUTPUTÂ«===[0mSORRY!===[0mâ�¤â�¤Unable to parse signature at /tmp/HiNGWvDQHD line 1:â�¤------> sub sayattrs (â��{*%attrs}) { say %attrs.perl }; class Veâ�¤Couldn't find final ')'; gave up at /tmp/HiNGWvDQHD line 1:â�¤------> sub sayattrs (â€¦
03:41	p6eval	..rakudo 57eaaa: OUTPUT«===SORRY!===␤Missing block␤at /tmp/i4BtaLswMt:1␤»
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03:43	sorear	r: sub sayattrs($ (*%attrs)) { say %attrs.perl }; class Vec { has $.x; has $.y; }; sayattrs(Vec.new(x => 1, y => 2))
03:43	p6eval	rakudo 57eaaa: OUTPUT«("x" => 1, "y" => 2).hash␤»
03:43	sorear	quietfanatic.
03:44	quietfanatic	oh
03:44	quietfanatic	sweet
03:44	quietfanatic	though the syntax is a little odd methinks
03:50	quietfanatic	Oh, but I can't use that to do coercions, because methods on SomeType:U appear to be impossible
03:50	quietfanatic	rats
03:52	quietfanatic	Oh never mind, I was spelling postcircumfix 'infix'. Doh
03:53	quietfanatic	Except it still doesn't work.
03:53	quietfanatic	class A { method postcircumfix:<( )> (A:U:) { say 3 } }; A()
03:53	quietfanatic	rn: class A { method postcircumfix:<( )> (A:U:) { say 3 } }; A()
03:53	p6eval	rakudo 57eaaa: OUTPUT«Too many positional parameters passed; got 2 but expected 1␤ in method postcircumfix:<( )> at /tmp/bxmz9cNgsh:1␤ in <anon> at src/gen/BOOTSTRAP.pm:811␤ in any <anon> at src/gen/BOOTSTRAP.pm:807␤ in block <anon> at /tmp/bxmz9cNgsh:1␤␤»
03:53	p6eval	..niecza v19-12-gf36d743: OUTPUT«3␤»
03:54	quietfanatic	niecza++
03:54	pmichaud	r: class XYZ { method postcircumfix:<( )>(XYZ:U: $x) { say 3 } }; XYZ(0) # checking
03:54	p6eval	rakudo 57eaaa: OUTPUT«3␤»
03:54	pmichaud	r: class XYZ { method postcircumfix:<( )>(XYZ:U: $x) { say 3 } }; XYZ() # checking
03:54	p6eval	rakudo 57eaaa: OUTPUT«3␤»
03:54	pmichaud	hmmmm
03:55	pmichaud	r: class XYZ { method postcircumfix:<( )>(XYZ:U: $x) { say 3 } }; XYZ(3,4,5) # checking
03:55	p6eval	rakudo 57eaaa: OUTPUT«3␤»
03:55	pmichaud	I bet Rakudo is always expecting a Capture of the arguments there.
03:55	quietfanatic	huh
03:55	pmichaud	r: class XYZ { method postcircumfix:<( )>(XYZ:U: $x) { say $x.WHAT } }; XYZ(3,4,5) # checking
03:55	p6eval	rakudo 57eaaa: OUTPUT«Capture()␤»
03:55	pmichaud	ding
03:56	quietfanatic	Where does that capture come from?
03:56	pmichaud	it's the capture formed by the arglist to the .( ) call
03:57	quietfanatic	oh, so
03:57	quietfanatic	r: class XYZ { method postcircumfix:<( )>(XYZ:U: $x) { say $x[1] } }; XYZ(3,4,5) # checking
03:57	pmichaud	I'm not sure it's _correct_; that just appears to be what Rakudo is doing.
03:57	p6eval	rakudo 57eaaa: OUTPUT«4␤»
03:57	quietfanatic	er
03:58	quietfanatic	r: class XYZ { method postcircumfix:<( )>(XYZ:U: $x) { say $x } }; XYZ(3,4,5)
03:58	p6eval	rakudo 57eaaa: OUTPUT«3 4 5␤»
03:58	quietfanatic	yeah I'm pretty sure that's wrong.
03:58	quietfanatic	where's masakbot?
03:59	sorear	quietfanatic: 3,4,5 are being wrapped into a capture.
03:59	quietfanatic	Yes, but the signature should unwrap the capture.
04:00	pmichaud	there may be some circularity sawing taking place there... probably need to check with jnthn++, too.
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04:20	dalek	nqp: b9d44ce \| pmichaud++ \| src/QRegex/ (3 files):
04:20	dalek	nqp: [qregex] Initial implementation of <( and )> tokens.
04:20	dalek	nqp: review: https://github.com/perl6/nqp/commit/b9d44ce7b3
04:20	dalek	nqp: 66edbf6 \| pmichaud++ \| t/qregex/01-qregex.t:
04:20	dalek	nqp: Add some got/expected output to t/qregex/01-qregex.t .
04:20	dalek	nqp: review: https://github.com/perl6/nqp/commit/66edbf6a36
04:20	dalek	nqp: b07bc9e \| pmichaud++ \| t/qregex/rx_metachars:
04:20	dalek	nqp: [qregex]: Add some tests for <( and )> .
04:20	dalek	nqp: review: https://github.com/perl6/nqp/commit/b07bc9e530
04:31	moritz	\o
04:31	pmichaud	o/
04:31	sorear	\|o\|
04:31	pmichaud	eek! a TIE fighter!
04:34	dalek	rakudo/nom: a569e39 \| pmichaud++ \| / (4 files):
04:34	dalek	rakudo/nom: Update <( and )> in regexes to use code inherited from NQP.
04:34	dalek	rakudo/nom: review: https://github.com/rakudo/raku[…]commit/a569e39fa9
04:34	dalek	roast: baf17a4 \| pmichaud++ \| S05-metasyntax/angle-brackets.t:
04:34	dalek	roast: Add some more <( and )> tests.
04:34	dalek	roast: review: https://github.com/perl6/roast/commit/baf17a461a
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06:48	tadzik	hoelzro\|away: yeah, please don't worry about licesing when it comes to my modules :)
06:49	tadzik	I missed some action due to being suddenly asleep
06:53	sorear	o/ tadzik
06:56	tadzik	sorear: o/
07:02	moritz	\o
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07:47	sergot	hello o/
07:47	sergot	!
07:59	sorear	helo sergot
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08:28	szabgab	r: say "hi"
08:28	p6eval	rakudo a569e3: OUTPUT«hi␤»
08:28	szabgab	r: for 1 .. 3 { say $_ }
08:28	p6eval	rakudo a569e3: OUTPUT«1␤2␤3␤»
08:28	szabgab	r: for 1 .. 3 { say }
08:28	p6eval	rakudo a569e3: OUTPUT«␤␤␤»
08:28	szabgab	r: for 1 .. 3 { print }
08:28	p6eval	rakudo a569e3: ( no output )
08:29	szabgab	the last one prints me 3 times True in the REPL while the say version just 3 empty rows
08:29	szabgab	If anyone could explain that to me ...
08:30	pmichaud	the repl only does the 'p' if the executed code doesn't produce any output
08:30	pmichaud	so, since for 1..3 { say } generates output, the repl doesn't do any additional printing.
08:31	pmichaud	for 1..3 { print } doesn't print anything (it prints 3 null strings), so the repl prints the result of the for loop
08:31	pmichaud	which is (True, True, True)
08:31	pmichaud	r: say (for 1..3 { print }).perl
08:31	p6eval	rakudo a569e3: OUTPUT«(Bool::True, Bool::True, Bool::True).list␤»
08:32	pmichaud	you can also see the difference if you do say "" and print "" from the repl
08:32	pmichaud	the first will display a blank line; the second will display "True" (which is the result of the print)
08:32	szabgab	ok for that, and why neiher of them print the content of $_ ?
08:32	pmichaud	there are no more default arguments in Perl 6.
08:33	pmichaud	if you want to print $_, you have to do print $_ or $_.print or .print
08:33	szabgab	but there is for the for loop
08:33	szabgab	default iterator
08:33	szabgab	or what is the name of the variable there?
08:33	pmichaud	yes, $_ is set in the block, but a bare "say" doesn't default to displaying $_
08:33	pmichaud	std: for 1..3 { say } # I think STD flags it as an error
08:34	p6eval	std fd2647b: OUTPUTÂ«===[0mSORRY!===[0mâ�¤Unsupported use of bare 'say'; in Perl 6 please use .say if you meant $_, or use an explicit invocant or argument at /tmp/BRcBVzOyPz line 1:â�¤------> for 1..3 { sayâ�� } # I think STD flags it as an errorâ�¤Check failedâ€¦
08:34	pmichaud	we used to flag it as an error in Rakudo... apparently that got dropped somewhere.
08:34	szabgab	nice
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08:34	szabgab	probably it would be better to flag that too
08:34	pmichaud	agreed; it's not always super-easy to do that :)
08:34	szabgab	and what is the name of the variables in the for loop ?
08:35	pmichaud	the for loop just passes the iterated values to the block -- the block gets to decide what to call the variable.
08:35	pmichaud	r: for 1..3 { say $^x }
08:35	p6eval	rakudo a569e3: OUTPUT«1␤2␤3␤»
08:35	pmichaud	r: for 1..3 -> $n { say $n }
08:35	p6eval	rakudo a569e3: OUTPUT«1␤2␤3␤»
08:35	szabgab	I mean I used to call them "iterator"
08:35	szabgab	in perl 5
08:35	szabgab	to describe them
08:35	szabgab	in general
08:35	pmichaud	I don't think that works in p6, though.
08:36	pmichaud	because they belong to the block, not the for loop.
08:36	pmichaud	r: (1..3).map( -> $n { say $n }).eager
08:36	p6eval	rakudo a569e3: OUTPUT«1␤2␤3␤»
08:36	szabgab	so I was looking for a generic term for the variable that is on the right hand side of ->
08:37	pmichaud	it's a parameter
08:37	szabgab	ok, that will do :)
08:37	pmichaud	just like if we do sub anon ($x, $y) { ... }
08:37	szabgab	then another question , there used to be an idea to write for 1..10 by(2) { }
08:37	pmichaud	we can also do -> $x, $y { ... }
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08:38	szabgab	but I don't think it is there any more, not even in the spec
08:38		brrt joined #perl6
08:38	pmichaud	correct, it's gone. We now use the sequences operator.
08:38	szabgab	so can I loop every 2nd value?
08:38	pmichaud	say 1,3,5 ...^ *>= 10
08:38	szabgab	r: for 1,3...10 { say $_ }
08:38	pmichaud	r: say 1,3,5 ...^ *>= 10~
08:38	p6eval	rakudo a569e3: OUTPUT«(timeout)»
08:38	p6eval	rakudo a569e3: OUTPUT«===SORRY!===␤Confused␤at /tmp/8DXq5AQqdk:1␤»
08:38	pmichaud	r: say 1,3,5 ...^ *>= 10
08:38	p6eval	rakudo a569e3: OUTPUT«1 3 5 7 9␤»
08:38	szabgab	r: for 1,3,5 ...10 { say $_ }
08:39	pmichaud	the endpoint has to match exactly, or the sequence is infinite
08:39	p6eval	rakudo a569e3: OUTPUT«(timeout)»
08:39	szabgab	r: for 1,3,5 ...11 { say $_ }
08:39	p6eval	rakudo a569e3: OUTPUT«1␤3␤5␤7␤9␤11␤»
08:39	szabgab	r: for 1,3 ...11 { say $_ }
08:39	p6eval	rakudo a569e3: OUTPUT«1␤3␤5␤7␤9␤11␤»
08:39	szabgab	oh
08:39	pmichaud	it's a smart match at the end of the sequence, thus * >= 10 works
08:39	szabgab	I think that used to work without exact match
08:39	pmichaud	it did; that got changed
08:40	pmichaud	because we have lots of sequences that can't be easily deduced as "up to" or "down to"
08:40	szabgab	r: for 1,3 ...^ *>10
08:40	p6eval	rakudo a569e3: OUTPUT«===SORRY!===␤Missing block␤at /tmp/N0PJ14uCw4:1␤»
08:40	szabgab	r: for 1,3 ...^ *>10 { say $_ }
08:40	p6eval	rakudo a569e3: OUTPUT«1␤3␤5␤7␤9␤»
08:42	pmichaud	hmmm, I wonder
08:42	szabgab	r: for 1,2,0 ... 3 { say $_ }
08:42	p6eval	rakudo a569e3: OUTPUT«1␤2␤0␤Unable to deduce sequence␤ in method gist at src/gen/CORE.setting:9567␤ in sub say at src/gen/CORE.setting:7011␤ in block <anon> at /tmp/Dx2zwGalQA:1␤␤»
08:42	pmichaud	r: for 1,3 ...^ * !< 10 { .say }
08:42	p6eval	rakudo a569e3: OUTPUT«1␤3␤5␤7␤9␤»
08:42	pmichaud	heh, it works.
08:43	szabgab	could you give a sequence where you cannot deduct if it is upper or lower limit?
08:44	pmichaud	r: my @a = 1, -2, 4 ... *; say @a[^15];
08:44	p6eval	rakudo a569e3: OUTPUT«1 -2 4 -8 16 -32 64 -128 256 -512 1024 -2048 4096 -8192 16384␤»
08:44	pmichaud	r: my @a = 1, -1, 1 ... *; say @a[^10]
08:44	p6eval	rakudo a569e3: OUTPUT«1 -1 1 -1 1 -1 1 -1 1 -1␤»
08:44	szabgab	r: for 1,2,0 ... 3 { say $_ }
08:44	p6eval	rakudo a569e3: OUTPUT«1␤2␤0␤Unable to deduce sequence␤ in method gist at src/gen/CORE.setting:9567␤ in sub say at src/gen/CORE.setting:7011␤ in block <anon> at /tmp/1Mj25vrSPb:1␤␤»
08:45	pmichaud	r: my @a = True, !* ... *; say @a[^10]
08:45	p6eval	rakudo a569e3: OUTPUT«True False True False True False True False True False␤»
08:45	szabgab	it does not lie my sequence :(
08:45	szabgab	like
08:45	pmichaud	it can't figure out the relationship between 1, 2, and 0
08:45	szabgab	r: for 1,2,0,3 ... -1 { say $_ }
08:45	p6eval	rakudo a569e3: OUTPUT«1␤2␤0␤3␤Unable to deduce sequence␤ in method gist at src/gen/CORE.setting:9567␤ in sub say at src/gen/CORE.setting:7011␤ in block <anon> at /tmp/8yQEiguzOR:1␤␤»
08:46	pmichaud	what sequence are you wanting there?
08:46	szabgab	+1, -2, +3, -4
08:46	pmichaud	yeah, that's neither arithmetic nor geometric
08:46	pmichaud	but you can do
08:47	pmichaud	(thinking)
08:47	diakopter	1234 times -1,1,-1,1
08:48	diakopter	the nth at the first times the nth at the second
08:48	szabgab	I was thinking that if it is restricted to arithmetic and geometric then from 3 items you can see if it has a direction
08:48	pmichaud	r: my @a = 1, { $^x.abs * -$^x.sign } ... *; say @a[^10]
08:48	p6eval	rakudo a569e3: OUTPUT«1 -1 1 -1 1 -1 1 -1 1 -1␤»
08:48	pmichaud	r: my @a = 1, { ($^x.abs+1) * -$^x.sign } ... *; say @a[^10]
08:48	p6eval	rakudo a569e3: OUTPUT«1 -2 3 -4 5 -6 7 -8 9 -10␤»
08:48	szabgab	and from there you can no if it is upper bound, lower bound or no bound
08:48	pmichaud	szabgab: yeah, I think we decided that's too much special casing
08:49	pmichaud	it's much easier to just say it's always a smartmatch at the end
08:50	pmichaud	and geometric doesn't always have a direction
08:50	szabgab	r: for 1,3 ...^ *<10 { say $_ }
08:50	p6eval	rakudo a569e3: ( no output )
08:50	szabgab	r: for 1,3 ...7 { say $_ }
08:50	p6eval	rakudo a569e3: OUTPUT«1␤3␤5␤7␤»
08:51	szabgab	r: for 1,3 ...^ *>10 { say $_ }
08:51	p6eval	rakudo a569e3: OUTPUT«1␤3␤5␤7␤9␤»
08:51	szabgab	it feels the oposite way :)
08:51	pmichaud	yeah, that's why I did !< earlier :-)
08:51	szabgab	r: for 1,3 ...^ !<10 { say $_ }
08:51	p6eval	rakudo a569e3: OUTPUT«===SORRY!===␤Preceding context expects a term, but found infix !< instead␤at /tmp/GihLfh61fo:1␤»
08:51	pmichaud	* !< 10
08:52	szabgab	r: for 1,3 ...^ * !<10 { say $_ }
08:52	p6eval	rakudo a569e3: OUTPUT«1␤3␤5␤7␤9␤»
08:52	szabgab	cryptic :(
08:52	pmichaud	not really.... !< is "not less than"
08:52	szabgab	r: for 1,3 ... ^*!< 10 { say $_ }
08:52	p6eval	rakudo a569e3: OUTPUT«Cannot call 'Numeric'; none of these signatures match:␤:(Mu:U \$v, Mu *%_)␤␤ in method Numeric at src/gen/CORE.setting:686␤ in sub prefix:<^> at src/gen/CORE.setting:4948␤ in block <anon> at /tmp/bagpRPf6fq:1␤␤»
08:52	szabgab	r: for 1,3 ...^*!< 10 { say $_ }
08:52	p6eval	rakudo a569e3: OUTPUT«1␤3␤5␤7␤9␤»
08:53	szabgab	4 non-alpha :)
08:53	szabgab	r: for 1,3 ...* < 10 { say $_ }
08:53	p6eval	rakudo a569e3: OUTPUT«1␤»
08:53	szabgab	r: for 1,3 ...* > 10 { say $_ }
08:53	p6eval	rakudo a569e3: OUTPUT«1␤3␤5␤7␤9␤11␤»
08:54	szabgab	the first one would look good :)
08:54	szabgab	oh this will never end if every person comes with new ideas :)
08:55	szabgab	or "different from current" even if not "new"
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09:39	pmichaud	r: say 'abcd'.match(/a/, :x(1..4)).WHAT
09:39	p6eval	rakudo a569e3: OUTPUT«List()␤»
09:39	pmichaud	r: say 'abcd'.match(/a/, :x(1..4))
09:39	p6eval	rakudo a569e3: OUTPUT«a␤»
09:39	pmichaud	r: say 'abcd'.match(/a/, :n(1,3))
09:39	p6eval	rakudo a569e3: OUTPUT«q[a]␤␤»
09:39	pmichaud	r: say 'abcd'.match(/a/, :n(1,3)).WHAT
09:39	p6eval	rakudo a569e3: OUTPUT«Match()␤»
09:40	pmichaud	r: say 'abcd'.match(/./, :n(1,3)).WHAT
09:40	p6eval	rakudo a569e3: OUTPUT«Match()␤»
09:40	pmichaud	r: say 'abcd'.match(/./, :nth(1,3))
09:40	p6eval	rakudo a569e3: OUTPUT«a c␤»
09:40	pmichaud	r: say 'abcd'.match(/./, :nth(1,3)).WHAT
09:40	p6eval	rakudo a569e3: OUTPUT«List()␤»
09:40	pmichaud	r: say 'abcd'.match(/a/, :nth(1,3)).WHAT
09:40	p6eval	rakudo a569e3: OUTPUT«Match()␤»
09:40	pmichaud	that seems wrongish.
09:43	pmichaud	time for sleep -- bbl
09:51		Su-Shee joined #perl6
09:51	Su-Shee	hi all :)
09:54	sergot	Su-Shee: hi
09:56		mucker joined #perl6
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10:25	masak	g'day, #perl6.
10:25		Psyche^ joined #perl6
10:25	colomon	\o
10:25	* colomon	is not quite awake yet
10:25	* masak	is on a bus!
10:25	masak	and I've been awake since 04:30, which... mhh.
10:27	* colomon	work up at exactly 06:01
10:29	colomon	tried to go back to sleep, but my nose was too stuffy to handle the CPAP.
10:29	diakopter	hm. I spupose I should sleep tonight
10:29		brrt joined #perl6
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10:42	jnthn	Good Saturday, #perl6
10:42	masak	jnthn! \o/
10:44	moritz	\o
10:44	moritz	jnthn++ # hague grant completed
10:46	colomon	\o/
10:46	jnthn	\o/
10:49		je joined #perl6
10:56	masak	jnthn++ \o/
10:58		tyatpi joined #perl6
11:06	masak	re http://irclog.perlgeek.de/perl[…]2-07-07#i_5793473 -- I agree with quietfanatic++, and I think sorear++ changed the spec and fixed Niecza to be more consistent and simpler in this regard. I don't believe there are circularity issues.
11:06	masak	if jnthn concurs (or doesn't fly into a tantrum about having to change this bit), I'll submit a rakudobug.
11:07	jnthn	It used to be spec'd that way.
11:07	jnthn	I agreed it could change already.
11:07	jnthn	Rakudo didn't get updated yet.
11:07	jnthn	It was mostly SMOP that wanted it to be the other way, fwiw.
11:08	* masak	submits rakudobug
11:08	jnthn	That particular circularity saw doesn't apply to anything 6model-y. 6model doesn't care for captures in any sense, and the invocation protocol is specified as VM specific.
11:08	masak	yes, I remember that bit of input coming from pmurias++ and ruoso++
11:08	jnthn	Rakudo's postcircumfix:<( )> isn't the invocation protocol in general.
11:08	jnthn	SMOP tried to make it that way, which was why it wanted said circularity saw, iirc.
11:09	jnthn	.oO( Can I just fix this, or do I have to think about deprecation policy... :-) )
11:10		araujo joined #perl6
11:10		araujo joined #perl6
11:14	masak	the invocation protocol is VM specific, but I do hope the expected parameter list for postcircumfix:<( )> isn't.
11:15	jnthn	masak: That was kinda my point. What postcircumfix:<( )> does isn't anything to do with the VM's view.
11:15	masak	ok ok good.
11:15	masak	that's probably wise.
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11:39	masak	Woodi! \o/
11:44		c1sung joined #perl6
11:51	pmichaud	jnthn: (postcircumfix:<( )>) afaic, you can "just fix it".
11:52	Woodi	hi today everyone :)
11:53	jnthn	as far as i...?
11:53	pmichaud	as far as I'm concerned
11:53	* jnthn	is used to that ending "ct" = can tell :)
11:53	jnthn	oh!
11:53	jnthn	:)
12:18	dalek	doc: 2139f4f \| pmichaud++ \| lib/Positional.pod:
12:18	dalek	doc: [Positional]: EnumMap isn't Positional; other minor tweaks and fixes.
12:18	dalek	doc: review: https://github.com/perl6/doc/commit/2139f4f040
12:27		mucker joined #perl6
12:31	dalek	doc: 7b0caa5 \| pmichaud++ \| lib/ (7 files):
12:31	dalek	doc: Various grammatical and minor fixes.
12:31	dalek	doc: review: https://github.com/perl6/doc/commit/7b0caa595f
12:33	dalek	rakudo/toqast: f96df3b \| jnthn++ \| src/QPerl6/Actions.pm:
12:33	dalek	rakudo/toqast: Translate the rest of the 'obvious' remaining PAST:: usages in the Actions. Thsoe that remain are interesting in some way. :-)
12:33	dalek	rakudo/toqast: review: https://github.com/rakudo/raku[…]commit/f96df3b2ac
12:33	dalek	rakudo/toqast: 0c943c2 \| jnthn++ \| src/QPerl6/World.pm:
12:33	dalek	rakudo/toqast: Translate the easy remaining PAST usages in World.
12:33	dalek	rakudo/toqast: review: https://github.com/rakudo/raku[…]commit/0c943c2536
12:33		samlt joined #perl6
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13:05	dalek	nqp/toqast: fd47dae \| jnthn++ \| src/QAST/Operations.nqp:
13:05	dalek	nqp/toqast: Add what/how/who ops.
13:05	dalek	nqp/toqast: review: https://github.com/perl6/nqp/commit/fd47dae8a6
13:05	dalek	nqp/toqast: 58acfd1 \| jnthn++ \| src/QAST/ (2 files):
13:05	dalek	nqp/toqast: Add a way to mark a block as having a custom arguments processor, and compile it to a :call_sig usage on Parrot.
13:05	dalek	nqp/toqast: review: https://github.com/perl6/nqp/commit/58acfd16bf
13:07	dalek	rakudo/toqast: 9b02aca \| jnthn++ \| src/QPerl6/ (3 files):
13:07	dalek	rakudo/toqast: Add a few ops to the abstraction layer.
13:07	dalek	rakudo/toqast: review: https://github.com/rakudo/raku[…]commit/9b02aca31c
13:07	dalek	rakudo/toqast: c62d139 \| jnthn++ \| src/QPerl6/Actions.pm:
13:07	dalek	rakudo/toqast: Update arguments handling. Gets back one more sanity test, and changes the failure mode of many others.
13:07	dalek	rakudo/toqast: review: https://github.com/rakudo/raku[…]commit/c62d139c7c
13:07	dalek	rakudo/toqast: bf653dd \| jnthn++ \| src/QPerl6/Actions.pm:
13:07	dalek	rakudo/toqast: Update compilation of .WHAT/.HOW/.WHO.
13:07	dalek	rakudo/toqast: review: https://github.com/rakudo/raku[…]commit/bf653dd901
13:07		Su-Shee left #perl6
13:22	dalek	rakudo/toqast: 9114f92 \| jnthn++ \| src/QPerl6/ (2 files):
13:22	dalek	rakudo/toqast: Start to update return value handling.
13:22	dalek	rakudo/toqast: review: https://github.com/rakudo/raku[…]commit/9114f9234c
13:22	dalek	rakudo/toqast: a543d24 \| jnthn++ \| src/QPerl6/ (2 files):
13:22	dalek	rakudo/toqast: Update Perl 6 capture_lex handling, which wins back one more sanity test.
13:22	dalek	rakudo/toqast: review: https://github.com/rakudo/raku[…]commit/a543d246dd
13:22	dalek	rakudo/toqast: 3f5bb89 \| jnthn++ \| src/QPerl6/Actions.pm:
13:22	dalek	rakudo/toqast: Make returnless analysis not explode.
13:22	dalek	rakudo/toqast: review: https://github.com/rakudo/raku[…]commit/3f5bb8971f
13:25		sergot joined #perl6
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13:58	timotimo	are there already specs or ideas how the automatic commandline argument parser created with MAIN can be enhanced? descriptions for flags and values etc.?
14:02		flussence joined #perl6
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14:12	moritz	not really
14:12	moritz	you can always write your own command line parser
14:12	timotimo	it would be nice to have a nice default one in place that does more than just the simples stuff
14:13	moritz	then write one
14:13	moritz	and we'll ship it with R*
14:13	moritz	and with a bit of luck and work, it'll become the default
14:13	colomon	timotimo: do you know what the current one can do?
14:13	timotimo	i don't know all of it i'm sure
14:14	moritz	it's nice, but it does have its limitations
14:14	dalek	nqp/toqast: 9c4dfa5 \| jnthn++ \| / (4 files):
14:14	dalek	nqp/toqast: Implement and test resultchild, which allows something other than the final statement of a QAST::Stmt or QAST::Stmts to be used as the result of the overall operation.
14:14	dalek	nqp/toqast: review: https://github.com/perl6/nqp/commit/9c4dfa54ef
14:14	moritz	it doesn't support subcommands with options separate from the main options, for example
14:18		flussence joined #perl6
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14:21	colomon	What's qx// supposed to do if it can't execute? (Say you've used the wrong command name.)
14:21	moritz	fail() I hope
14:21	colomon	that seems reasonable
14:22	flussence	that's what S29 says for shell() and run() anyway
14:25	moritz	the first two tests in t/00-parrot/ now pass with qperl6
14:25	moritz	as does no. 4
14:26	jnthn	moritz: Currenlty there's 4 failures in t/00-parrot nad 5 in t/01-sanity
14:26	jnthn	(With latest toqast in nqp and rakudo repos)
14:26	jnthn	At least, that's how I have it :)
14:33		nodmonkey joined #perl6
14:33	colomon	arg. in niecza, sprintf works (on my current case) but printf doesn't. :(
14:35	colomon	niecza: printf("%s, %d\n", "test", 1)
14:35	p6eval	niecza v19-12-gf36d743: OUTPUT«Unhandled exception: index out of range␤ at /home/p6eval/niecza/lib/CORE.setting line 1277 (sprintf @ 4) ␤ at /home/p6eval/niecza/lib/CORE.setting line 1278 (printf @ 4) ␤ at /tmp/R2j1ncpN6z line 1 (mainline @ 3) ␤ at /home/p6eval/niecza/lib/CORE.setti…
14:35	* _sri	wonders if there's a perl6brew yet
14:41	_sri	tadzik: i've been looking at MuEvent, is $socket.poll the only way to do non-blocking I/O?
14:42	_sri	that approach doesn't scale at all
14:43	* colomon	is not sure what it says about him that fixing bugs in Niecza is easier than just remembering the syntax to get his 16-line $work script working in p5
14:46	* _sri	wanted to build a little event loop with rakudo to see where it stands performance wise for I/O heavy servers
14:49		whiteknight joined #perl6
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14:55	dalek	nqp/toqast: 2cf193e \| jnthn++ \| src/QAST/Operations.nqp:
14:55	dalek	nqp/toqast: Port lexotic to QAST.
14:55	dalek	nqp/toqast: review: https://github.com/perl6/nqp/commit/2cf193eabd
15:01		tyatpi joined #perl6
15:12	dalek	zavolaj: 8449183 \| (Arne Skjærholt)++ \| TODO:
15:12	dalek	zavolaj: Update TODO list.
15:12	dalek	zavolaj: review: https://github.com/jnthn/zavol[…]commit/844918322f
15:14		cognominal_ joined #perl6
15:15		harmil_home joined #perl6
15:20	dalek	niecza: 442e075 \| (Solomon Foster)++ \| lib/CORE.setting:
15:20	dalek	niecza: Make printf work. (How had we missed this one?!)
15:20	dalek	niecza: review: https://github.com/sorear/niec[…]commit/442e075bb0
15:44		brrt1 joined #perl6
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16:00	dalek	nqp/toqast: f80052a \| jnthn++ \| src/QAST/Compiler.nqp:
16:00	dalek	nqp/toqast: s/newclosure/capture_lex/ for consistency with PAST.
16:00	dalek	nqp/toqast: review: https://github.com/perl6/nqp/commit/f80052aa6c
16:00	dalek	nqp/toqast: 7de611e \| jnthn++ \| src/QAST/ (2 files):
16:00	dalek	nqp/toqast: Fix register allocation so that lexicals don't get stomped on.
16:00	dalek	nqp/toqast: review: https://github.com/perl6/nqp/commit/7de611ec9b
16:00	dalek	rakudo/toqast: 05a1e61 \| jnthn++ \| src/QPerl6/Actions.pm:
16:00	dalek	rakudo/toqast: Update return handling for QAST.
16:00	dalek	rakudo/toqast: review: https://github.com/rakudo/raku[…]commit/05a1e61938
16:00	dalek	rakudo/toqast: c6c6488 \| jnthn++ \| src/QPerl6/Actions.pm:
16:00	dalek	rakudo/toqast: Stop add_inlining_info blowing up, though really this whole thing goes away soon since we'll be able to serialize bits of QAST.
16:00	dalek	rakudo/toqast: review: https://github.com/rakudo/raku[…]commit/c6c648801d
16:16	dalek	nqp/toqast: 2cb23aa \| jnthn++ \| src/QAST/Compiler.nqp:
16:16	dalek	nqp/toqast: Ensure blocks always end up with a lexinfo.
16:16	dalek	nqp/toqast: review: https://github.com/perl6/nqp/commit/2cb23aa30b
16:19	harmil_home	busy morning
16:21	harmil_home	ugh, I'm trying to refactor IO into a base IO::Parrot and the specced IO class, and I'm getting some very odd errros on compile that give me no leads on what to fix...
16:22	moritz	harmil_home: which specced IO class?
16:22	moritz	harmil_home: and what errors do you get?
16:22	harmil_home	moritz: I don't know. Whatever one was already in there. I'm basically trying to leave it alone, and just factor out $!PIO into a base class
16:23	harmil_home	Could not locate compile-time value for symbol Comp::AdHoc
16:23	harmil_home	current instr.: 'nqp;Perl6;World;_block2280' pc 32075 (src/gen/perl6-symboltable.pir:13915) (src/Perl6/World.pm:1709)
16:23	moritz	harmil_home: that IO class isn't specced :-)
16:23	harmil_home	moritz: fair enough, but it's loosely based on (and probably intended to migrate towards) the spec, right?
16:24	moritz	harmil_home: very loosely
16:24	harmil_home	My goal is to leave its interface as its interface, whatever that is and make Parrot::IO give us everything Parrot can do
16:24	harmil_home	er IO::Parrot
16:25	moritz	ah, I see how you might get that error
16:25	harmil_home	So, for example, my buffered IO stuff just moves down a level, as does anything that's basically just a wrapper around nqp::p6box_*($!PIO.somefunc())
16:25	harmil_home	oh?
16:26	moritz	harmil_home: it will be much easier for you do the whole thing outside of the setting
16:27	moritz	in fact, there isn't a good reason to do it inside the setting
16:27	moritz	unless you are fond of very long compile times
16:27	harmil_home	I'm not entirely clear what that menas.
16:27	moritz	just write the new IO::Parrot and IO class in a normal script
16:27	moritz	not in src/core/IO.pm
16:28	harmil_home	Ah, and override the core ones and all of the static functions that map into them?
16:28	moritz	(the error you are getting is an error during error reporting; I'll try to make it more robust)
16:28	moritz	harmil_home: right
16:28	moritz	whever "override" just means "declare a new one"
16:29	moritz	(lexical lookup)++
16:29	harmil_home	I suppose I could do that, but it seems like a lot of duplication. Won't that lead to IO in the core slowly diverging from "the real IO"?
16:29	harmil_home	Do we care?
16:29	moritz	harmil_home: well, we can always copy it back into src/core/IO.pm if it proves to be superior
16:30	harmil_home	Fair enough, I see what you're saying.
16:30	moritz	harmil_home: in fact I prototyped most of "my" setting code outside the setting first
16:32	arnsholt	One of the benefits of having most of the compiler written in Perl 6: Prototyping new bits of the compiler can often be done outside of the compiler first =)
16:33	pmichaud	Yes, I almost always prototype new features outside of the core setting first.
16:33	pmichaud	question: what should be the result of
16:33	harmil_home	Should I do this as a stand-alone perl6-io module or in my fork of rakudo/rakudo under lib?
16:34	pmichaud	"abcd".match( /./, :p(1), :global)
16:34	pmichaud	harmil_home: I suggest a standalone module.
16:34	harmil_home	pmichaud: thanks
16:35	pmichaud	I think (1) IO::Parrot is very useful, yet (2) it's unlikely to be part of the Rakudo core, unless we find it to be fundamental somehow.
16:35	pmichaud	(it is likely to be part of R*, however)
16:36	pmichaud	rn: say "abcd".match( /./, :p(1), :global)
16:36	harmil_home	pmichaud: urm... well, I can't do IO::Parrot in a vacuum. IO::Parrot is mostly a re-factor and re-write of the internals of IO
16:36	p6eval	niecza v19-13-g442e075: OUTPUT«Unhandled exception: Excess arguments to Cool.match, unused named global␤ at /home/p6eval/niecza/lib/CORE.setting line 0 (Cool.match @ 1) ␤ at /tmp/AYDLrnj5tV line 1 (mainline @ 3) ␤ at /home/p6eval/niecza/lib/CORE.setting line 3918 (ANON @ 3) ␤ at /ho…
16:36	p6eval	..rakudo a569e3: OUTPUT«b c d␤»
16:36	pmichaud	rn: say "abcd".match( /./, :p(1), :g)
16:36	p6eval	niecza v19-13-g442e075: OUTPUT«Unhandled exception: Excess arguments to Cool.match, unused named g␤ at /home/p6eval/niecza/lib/CORE.setting line 0 (Cool.match @ 1) ␤ at /tmp/ePKgPPnjAJ line 1 (mainline @ 3) ␤ at /home/p6eval/niecza/lib/CORE.setting line 3918 (ANON @ 3) ␤ at /home/p6…
16:36	p6eval	..rakudo a569e3: OUTPUT«b c d␤»
16:36		nodmonkey joined #perl6
16:36	moritz	well, :p only makese sense on the first match
16:37	pmichaud	yes, so I'm wondering if we should only get one match back.
16:37	moritz	I can see three possible interpretations
16:37	moritz	(1) only ever return one match
16:37	moritz	(2) only anchor the first match
16:37		phenny joined #perl6
16:38	moritz	(3) anchor the first match to 1, and each subsequent match to where the previous left off
16:38	pmichaud	yes, those are the three I was considering also. I guess this will have to be a TimToady++ question.
16:38	arnsholt	My initial reaction is 1, I think
16:39	moritz	nqp: my $x := 1; $x++; say($x)
16:39	p6eval	nqp: OUTPUT«2␤»
16:39	moritz	nqp: my $x := 1; ++$x; say($x)
16:39	p6eval	nqp: OUTPUT«2␤»
16:57	pmichaud	https://github.com/perl6/specs/issues/16
16:58	moritz	pmichaud++
16:59	moritz	sorear: can we get dalek to report spec issues?
16:59	pmichaud	I found that by just watching the perl6/specs repo, I get emails everytime a new issue or comment is posted.
17:00	pmichaud	email seems to be the only push notification for issues on github
17:00	moritz	well, dalek also supports pulling
17:00	colomon	ah, that's why I've been getting those emails...
17:00	moritz	having commit access should also be enough
17:01	pmichaud	I think one has to actually be watching the repo to get the emails.
17:01	pmichaud	but I could be wrong about that.
17:01	pmichaud	(You also get emails for any issues you create or comment upon, I think.)
17:02	moritz	maybe I'm watching it because I created it :-)
17:02	moritz	I don't remember ever pressing a "watch" button though
17:08	pmichaud	anyway, I looked into it a few days ago, and decided I wasn't up to tracking everything down to get issue updates into dalek
17:08		pmurias joined #perl6
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17:12	dalek	nqp/toqast: ad562d8 \| jnthn++ \| src/QAST/Operations.nqp:
17:12	dalek	nqp/toqast: Implement op xor (which has the semantics of xor_nqp).
17:12	dalek	nqp/toqast: review: https://github.com/perl6/nqp/commit/ad562d8a09
17:12	dalek	specs: aca4dff \| pmichaud++ \| questions.txt:
17:12	dalek	specs: Remove questions.txt in favor of Github's issue tracker.
17:12	dalek	specs: The one unanswered question from questions.txt is now at
17:12	dalek	specs: https://github.com/perl6/specs/issues/17 .
17:12	dalek	specs: review: https://github.com/perl6/specs/commit/aca4dff4da
17:13	dalek	rakudo/toqast: 2ce8e79 \| jnthn++ \| src/QPerl6/Grammar.pm:
17:13	dalek	rakudo/toqast: xor_nqp => xor; now down to 2 failing test files in 00-parrot and 3 in 01-sanity.
17:13	dalek	rakudo/toqast: review: https://github.com/rakudo/raku[…]commit/2ce8e795b3
17:17		szabgab joined #perl6
17:17	harmil_home	rn: class A {}; role B {}; class C is A does B {}
17:17	szabgab	r: say substr "abcd", 1, -1
17:17	p6eval	rakudo a569e3, niecza v19-13-g442e075: ( no output )
17:17	p6eval	rakudo a569e3: OUTPUT«Negative length argument (-1) to .substr␤ in method gist at src/gen/CORE.setting:9567␤ in sub say at src/gen/CORE.setting:7011␤ in block <anon> at /tmp/kvgD4R6vnP:1␤␤»
17:18	harmil_home	I think the no output is mine ;)
17:18	szabgab	is the fact that substr does not take negative length the design or lack of implementation?
17:18	pmichaud	I think it's *-1
17:18	harmil_home	rn: class A {}; role B {}; class IO is A does B
17:18	p6eval	niecza v19-13-g442e075: OUTPUTÂ«===[0mSORRY!===[0mâ�¤â�¤Unable to parse class definition at /tmp/OcrdwU6Zc9 line 1 (EOF):â�¤------> ss A {}; role B {}; class IO is A does Bâ��<EOL>â�¤â�¤Parse failedâ�¤â�¤Â»
17:18	p6eval	..rakudo a569e3: OUTPUT«===SORRY!===␤Unable to parse $*PKGDECL definition at line 2, near ""␤»
17:18	szabgab	harmil_home: yes
17:18	pmichaud	r: say substr "abcd", 1, *-1
17:18	p6eval	rakudo a569e3: OUTPUT«bc␤»
17:19	szabgab	pmichaud: aha
17:19	szabgab	thanks
17:19	pmichaud	the error message to .substr should perhaps indicate that.
17:19	harmil_home	anyone have a sense of why I'm getting errors parsing a class definition if I call it IO?
17:19	szabgab	r: my $x=-1; say substr "abcd", 1, $x
17:19	p6eval	rakudo a569e3: OUTPUT«Negative length argument (-1) to .substr␤ in method gist at src/gen/CORE.setting:9567␤ in sub say at src/gen/CORE.setting:7011␤ in block <anon> at /tmp/DgW1qkrzzW:1␤␤»
17:19	moritz	r: class IO { }
17:19	p6eval	rakudo a569e3: ( no output )
17:20	szabgab	r: my $x=-1; say substr "abcd", 1, *$x
17:20	p6eval	rakudo a569e3: OUTPUT«===SORRY!===␤Confused␤at /tmp/oj8gSkFa0S:1␤»
17:20	moritz	harmil_home: no. works here
17:20	szabgab	r: my $x=-1; say substr "abcd", 1, * $x
17:20	p6eval	rakudo a569e3: OUTPUT«===SORRY!===␤Confused␤at /tmp/Y2_1LUWr3z:1␤»
17:20	szabgab	r: my $x=1; say substr "abcd", 1, * -$x
17:20	p6eval	rakudo a569e3: OUTPUT«bc␤»
17:20	harmil_home	moritiz, see my rn: above
17:20	harmil_home	moritz, even
17:20	szabgab	so both rakudo and I am confused :)
17:23	pmichaud	rn: class A {}; role B {}; my class IO is A does B { ... }
17:23	p6eval	rakudo a569e3: OUTPUT«===SORRY!===␤The following packages were stubbed but not defined:␤ IO␤at /tmp/7bbkQWsjSF:1␤»
17:23	p6eval	..niecza v19-13-g442e075: OUTPUTÂ«===[0mSORRY!===[0mâ�¤â�¤Package was stubbed but not defined at /tmp/4sq6dqLtRv line 1:â�¤------> class A {}; role B {}; my classâ�� IO is A does B { ... }â�¤â�¤Unhandled exception: Check failedâ�¤â�¤ at /home/p6eval/niecza/boot/lib/CORE.seâ€¦
17:23	pmichaud	rn: class A {}; role B {}; my class IO is A does B { }
17:23	p6eval	rakudo a569e3, niecza v19-13-g442e075: ( no output )
17:23	pmichaud	rn: class A {}; role B {}; class IO is A does B { }
17:23	p6eval	rakudo a569e3, niecza v19-13-g442e075: ( no output )
17:23	pmichaud	seems to work.
17:24	harmil_home	I'm trying to figure out what you did differently...
17:25	moritz	harmil_home: you were missing the { } of the class
17:25	harmil_home	ah... hmm...
17:25	harmil_home	so then it was a red herring. That's unpleasant
17:26	harmil_home	My real error is Unable to parse $*PKGDECL definition at line 226, near "does IO::F"
17:26	harmil_home	which I get on class IO is IO::Parrot does IO::FileTestable {
17:26	pmichaud	could be an error inside the braces (that isn't being reported well)
17:27	moritz	r: class IO::Parrot { }; class IO is IO::Parrot does IO::FileTestable { }
17:27	p6eval	rakudo a569e3: OUTPUT«===SORRY!===␤Unable to parse $*PKGDECL definition at line 2, near "does IO::F"␤»
17:27	harmil_home	OK, I'll start doing the binary search...
17:27	pmichaud	if you can nopaste it, we might be able to spot it quickly
17:27	harmil_home	interesting.
17:27	moritz	seems I've just reproduced it above
17:27	moritz	r: class IO::Parrot { }; class MyIO is IO::Parrot does IO::FileTestable { }
17:27	p6eval	rakudo a569e3: OUTPUT«===SORRY!===␤Unable to parse $*PKGDECL definition at line 2, near "does IO::F"␤»
17:27	moritz	so, not related to the IO name
17:28	harmil_home	related to undefined IO::FileTestable?
17:28	moritz	r: class IO::Parrot { }; class IO does IO::FileTestable { }
17:28	p6eval	rakudo a569e3: OUTPUT«===SORRY!===␤Unable to parse $*PKGDECL definition at line 2, near "does IO::F"␤»
17:28	harmil_home	Oh heck
17:28	harmil_home	I didn't export IO::Parrot after I moved it out into a file
17:28	moritz	r: say IO::FileTestable
17:28	p6eval	rakudo a569e3: OUTPUT«Could not find symbol 'IO::&FileTestable'␤ in block <anon> at /tmp/ojDGWQZdeJ:1␤␤»
17:28	moritz	oh, that explains a lot
17:29	harmil_home	hmmm that didn't help any
17:29	pmichaud	might be worthy of a LTA rakudobug
17:29	moritz	r: say IO::FileTestable
17:29	p6eval	rakudo a569e3: OUTPUT«Could not find symbol 'IO::&FileTestable'␤ in block <anon> at /tmp/k8rQXz5Tio:1␤␤»
17:29	harmil_home	LTA?
17:29	moritz	less than awesome
17:29	harmil_home	ah
17:29	moritz	oh
17:29	moritz	that's becase p6eval hides IO
17:29	moritz	it works locally
17:30	moritz	but yes, a missing IO::Parrot would do the same
17:30	pmichaud	also, if you do class IO does IO::FileTestable you're hiding the old IO namespace
17:30	harmil_home	pmichaud, which I wish to do
17:30	harmil_home	I'm wholly replacing it
17:31	pmichaud	which means that IO::FileTestable isn't visible :)
17:31	pmichaud	unless you're replacing that too :)
17:31	harmil_home	yep
17:31	pmichaud	okay then.
17:31	moritz	though, consider not to inherit from IO::Parrot
17:31	harmil_home	my IO.pm is the core IO.pm with all parrot IO calls ripped out
17:32	moritz	it feels wrong to have VM-specific behavior as the superclass of the general IO class
17:32	harmil_home	how would you define IO.read if not in terms of a lower-level interface?
17:33	pmichaud	it can be a role
17:33	jnthn	It's fine to define it in terms of a lower level interface, but it should be done through delegation.
17:33	moritz	harmil_home: you can ouse a lower-level interface without inheritance
17:34	jnthn	Please think a bit about what this will look like off Parrot too. :)
17:34	moritz	harmil_home: it can be an attribute (has $.parrot-io), or simply function calls or something else
17:34	moritz	right, delegation, not inheritance
17:34	pmichaud	we definitely don't want to be interposing a vm-specific class between IO and Any
17:34	harmil_home	Ugh, I was trying to extract the parrot-speciifc attribute out, not change it's type ;)
17:34	harmil_home	pmichaud, why not?
17:35	pmichaud	it is likely to confuse the type system across implementations
17:35	moritz	because superclasses are part of the public API
17:35	pmichaud	moritz++ said it better :)
17:35	moritz	and our public API shouldn't expose VM-specific stuff
17:35	moritz	inheritance is just wrong Wrong WRONG here
17:35	harmil_home	pmichaud, how would it confuse the type systems across implementations? There won't be an IO::Parrot in a non-Parrot implementation will there?
17:36	pmichaud	harmil_home: correct. Which means that IO on a different implementation would have a different superclass than Rakudo on Parrot
17:36	harmil_home	sigh, OK, I'm going to go get some lunch and try to pretend that getting buffered IO into the core isn't running into road-blocks at every step
17:38	moritz	be glad that we caught that mistake before you implemented it all
17:40	pmichaud	> say substr 'abcd', 1, -1
17:40	pmichaud	Negative length argument (-1) to .substr, use '*-1' if you want offset from the end
17:40	jnthn	pmichaud++
17:40	dalek	rakudo/toqast: 3dd5f6f \| jnthn++ \| src/QPerl6/Actions.pm:
17:40	dalek	rakudo/toqast: Eliminate a usage of viviself.
17:40	dalek	rakudo/toqast: review: https://github.com/rakudo/raku[…]commit/3dd5f6f91c
17:40	dalek	rakudo/toqast: a466813 \| jnthn++ \| src/QPerl6/ (2 files):
17:40	dalek	rakudo/toqast: Start fixing package lookups a bit. Gets us one more test passing again.
17:40	dalek	rakudo/toqast: review: https://github.com/rakudo/raku[…]commit/a4668139cd
17:40	jnthn	splice still needs this kinda update too
17:46	sorear	good * #perl6
17:47	sorear	moritz: dalek reports anything that you can append to the queue file.
17:47	sorear	moritz: it also has an rss puller
17:47	sorear	rss pull will be slower ofc
17:48	moritz	sorear: where is parrot's issue watching configured?
17:49	pmichaud	...parrot has an issue watcher?
17:49	pmurias	sorear: hi
17:50	pmurias	sorear: is there anything with niecza that you need help with?
17:53	sorear	pmichaud: yes! and it even used to work!
17:53	sorear	trac only
17:53		vmspb joined #perl6
17:54		PerlJam joined #perl6
17:56	sorear	colomon: why doesn't sprintf take a slurpy?
18:00		tyatpi joined #perl6
18:01	dalek	rakudo/nom: c24da0b \| pmichaud++ \| src/core/Str.pm:
18:01	dalek	rakudo/nom: Improve the negative start/length failure messages for substr.
18:01	dalek	rakudo/nom: review: https://github.com/rakudo/raku[…]commit/c24da0b30e
18:05	pmurias	sorear: my summer break has started so I should have lots of free time soon
18:06	pmurias	sorear: should I work on the stuff from the TODO or does the no-bootstrap branch need to be finished first?
18:09	sorear	I haven't gone over TODO recently, probably it has a lot of stale items
18:09	sorear	I personally am blocking everything else on no-bootstrap
18:13	pmurias	anything there I should work on
18:14	pmurias	?
18:14	pmurias	preferably something isolated as lightning destroyed my dsl modem, so I have to walk to the uni to use the wifi :(
18:21		fgomez joined #perl6
18:21	* sorear	shrugs
18:54	pmurias	sorear: how should I build the non-bs branch?
18:58	sorear	pmurias: make, then mono obj/Run.Kernel.dll -test-nobs --help
18:58	sorear	hmmm
18:59	sorear	no, that was right
18:59	sorear	it wasn't working because I tried it in the wrong checkout
19:00	flussence	random question: is there a more idiomatic way to have a repeating list of items than @f[$_ % @f]?
19:00	sorear	@f xx *
19:01	pmurias	sorear: thanks
19:01	pmurias	sorear: I mistook the lack of some debian package for typing the wrong invocation
19:01	flussence	oh, that looks nicer. thanks
19:01		MayDaniel joined #perl6
19:02	sorear	pmurias: actually just make obj/Run.Kernel.dll
19:02	sorear	the branch is nowhere near usable
19:07	pmurias	sorear: does the non-bs branch run anything right now?
19:07	pmurias	sorear: does the non-bs branch run anything right now?
19:08	pmurias	sorry for repetition
19:08	sorear	no
19:10	pmurias	so you are just translating code for now?
19:11	sorear	yes
19:16	masak	evening, #perl6
19:16	sorear	o/ masak
19:20		birdwindupbird joined #perl6
19:25	moritz	\o *
19:30		preflex_ joined #perl6
19:35	masak	r: class A { method foo() {} }; say +grep { .positional && !.invocant }, A.^methods[0].signature.params; class B { has A $.a handles <foo> }; say +grep { .positional && !.invocant }, B.^methods[0].signature.params
19:35	p6eval	rakudo c24da0: OUTPUT«0␤0␤»
19:35	masak	r: class A { method foo() {} }; say +grep { .positional && !.invocant }, A.^methods[0].signature.params; class B { has A $!a handles <foo> }; say +grep { .positional && !.invocant }, B.^methods[0].signature.params
19:35	p6eval	rakudo c24da0: OUTPUT«0␤1␤»
19:35	masak	jnthn: why the 1?
19:36	masak	this surprised me greatly.
19:36	masak	r: class A { method foo() {} }; class B { has A $!a handles <foo> }; say (grep { .positional && !.invocant }, B.^methods[0].signature.params).name
19:36	p6eval	rakudo c24da0: OUTPUT«No such method 'name' for invocant of type 'List'␤ in block <anon> at /tmp/fUdadEjW3e:1␤␤»
19:36	jnthn	masak: Maybe handles installs a closure rather than an anonymous method or something.
19:36	masak	r: class A { method foo() {} }; class B { has A $!a handles <foo> }; say (grep { .positional && !.invocant }, B.^methods[0].signature.params)[0].name
19:36	p6eval	rakudo c24da0: OUTPUT«$c␤»
19:36	masak	what's $c?
19:37		christian_ joined #perl6
19:37	masak	jnthn: yeah, but it only does this when the attribute is private.
19:37	masak	suddenly my nice introspection breaks :)
19:37	jnthn	...what?
19:37	jnthn	It's about handles. It's nothing to do with privacy.
19:38	masak	well, it shouldn't have anything to do with privacy.
19:38	masak	but note that the output is different if it's $.a or $!a above.
19:38	masak	that's what's surprising, more than anything else, really.
19:39	* masak	submits rakudobug
19:39	jnthn	ah, maybe it goes thorugh a differnet codepath or something becuase you want it to call the accessor in the first case
19:39	jnthn	I dunno
19:40	masak	the B.foo method comes back saying it has one positional non-invocant parameter.
19:40	jnthn	Well, did you check what kind of object it is?
19:40	jnthn	It's probably a Block rather than a Method.
19:40	masak	r: class A { method foo() { say "OH HAI" } }; class B { has A $!a handles <foo> }; B.new.foo
19:40	p6eval	rakudo c24da0: OUTPUT«OH HAI␤»
19:41	masak	r: class A { method foo() {} }; class B { has A $!a handles <foo> }; say (grep { .positional && !.invocant }, B.^methods[0].signature.params)[0].^name
19:41	p6eval	rakudo c24da0: OUTPUT«Parameter␤»
19:41	masak	er.
19:41	masak	r: class A { method foo() {} }; class B { has A $!a handles <foo> }; say B.^methods[0].^name
19:42	p6eval	rakudo c24da0: OUTPUT«Method␤»
19:42	masak	it's a Method.
19:42	masak	with a $c parameter.
19:42	jnthn	Oh.
19:42	jnthn	oh, of course.
19:42	jnthn	it's \|$c
19:42	jnthn	As in, the capture
19:43	jnthn	I'm surprised that is counted as positional.
19:43	jnthn	I suspect that's the real bug.
19:43	jnthn	r: sub foo(\|$c) { }; say &foo.params[0].positional
19:43	p6eval	rakudo c24da0: OUTPUT«No such method 'params' for invocant of type 'Sub'␤ in block <anon> at /tmp/GsWgBwfdNM:1␤␤»
19:43	jnthn	r: sub foo(\|$c) { }; say &foo.signature.params[0].positional
19:43	p6eval	rakudo c24da0: OUTPUT«True␤»
19:44	pmichaud	r: sub foo(\|$c) { }; say &foo.count;
19:44	jnthn	Yeah, that probably should not be True
19:44	p6eval	rakudo c24da0: OUTPUT«Inf␤»
19:44	pmichaud	r: sub foo(\|$c) { }; say &foo.arity;
19:44	p6eval	rakudo c24da0: OUTPUT«0␤»
19:44	pmichaud	at least those are correct. :-)
19:44	masak	I think the real bug is that the actual parameters in the handled method get hidden in a capture parameter -- and that this only happens for private attributes :/
19:44	jnthn	What "actual parameters"?
19:44	masak	jnthn: in this case, an empty list of them.
19:45	jnthn	masak: Your expectations are weird.
19:45	jnthn	masak: How is it meant to know that the object that you call .foo on will take no parameters?
19:46	pmichaud	in some sense, wrappers that pass-through their arguments to the thing they wrap perhaps ought to expose the underlying signature, too.
19:46	jnthn	IT'S A METHOD DISPATCH. WE DO NOT KNOW.
19:46	masak	jnthn: what pmichaud said.
19:46	masak	jnthn: why does it work for the public case but not for the private case?
19:46	pmichaud	although yes, I see what jnthn++ is saying also, here.
19:47	masak	well, me too.
19:47	jnthn	masak: Because you're looking at the wrong method, perhaps?
19:47	jnthn	.methods[0]
19:47	jnthn	You're probably looking at the generated accessor method there.
19:48	pmichaud	there have been a few times I've wished for .methods.<xyz> :-)
19:49	jnthn	Sadly, it's a list, not a hash.
19:49	jnthn	Wait...what? :)
19:49	jnthn	.find_method('xyz') # :)
19:49	pmichaud	...where .postcircumfix:<{ }> greps through that list for method names
19:49	pmichaud	I can live with find_method
19:50	pmichaud	r: say 3.find_method('Str')
19:50	p6eval	rakudo c24da0: OUTPUT«No such method 'find_method' for invocant of type 'Int'␤ in block <anon> at /tmp/kwRwcKAoyO:1␤␤»
19:50	jnthn	.^
19:50	pmichaud	r: say 3.^find_method('Str')
19:50	jnthn	It's a meta-method
19:50	p6eval	rakudo c24da0: OUTPUT«Str␤»
19:50	pmichaud	r: say 3.^find_method('Str').signature
19:50	p6eval	rakudo c24da0: OUTPUT«:(Mu , , Mu *%_)␤»
19:51	jnthn	Um.
19:51	pmichaud	okay, that works well enough for me I guess. :)
19:51	moritz	you can also do .can('Str')[0]
19:51	jnthn	Aside from Signature.perl needs some love.
19:51	pmichaud	r: class A { method foo() { say "OH HAI" } }; class B { has A $!a handles <foo>; B.new.^find_method('foo').say
19:51	p6eval	rakudo c24da0: OUTPUT«===SORRY!===␤Unable to parse blockoid, couldn't find final '}' at line 2, near ""␤»
19:52	pmichaud	r: class A { method foo() { say "OH HAI" } }; class B { has A $!a handles <foo>; }; B.new.^find_method('foo').say
19:52	p6eval	rakudo c24da0: OUTPUT«foo␤»
19:52	pmichaud	r: class A { method foo() { say "OH HAI" } }; class B { has A $!a handles <foo>; }; B.new.^find_method('foo').signature.say
19:52	p6eval	rakudo c24da0: OUTPUT«:(Mu , \|$c, Mu *%_)␤»
19:52	pmichaud	there ya go. :-)
19:52	jnthn	Yeah, it knows its a capture.
19:52	jnthn	I bet that way, changing it to $.a doesn't change things.
19:53	pmichaud	and we can't know anything about the underlying A.foo because it's a dispatcher, not a wrapper?
19:53	jnthn	What is I wrote a class C is A { method foo($x) { } }
19:53	jnthn	*if
19:53	jnthn	It's a dynamic (at runtime) dispatch.
19:54	pmichaud	exactly. the handles<foo> doesn't wrap the A::foo method.
19:54	pmichaud	It simply takes anything coming in at B.foo and sends it to $!a
19:54	jnthn	Exactly. It installs a new method in B.
19:54	pmichaud	wfm
19:55	masak	ok, so "it's like this".
19:55	moritz	... "and that's the way it is"
19:55	masak	r: class A { method foo() { say "OH HAI" } }; class B { has A $.a handles <foo>; }; say B.new.^find_method('foo').signature
19:55	jnthn	So, the only bug I see in all of this is that a \|$c gives .positional as True under introspection.
19:55	p6eval	rakudo c24da0: OUTPUT«:(Mu , \|$c, Mu *%_)␤»
19:55	pmichaud	to fix the .positional problem, I propose adding $SIG_ELEMENT_IS_CAPTURE to
19:55	pmichaud	($!flags +& ($SIG_ELEM_SLURPY_POS +\| $SIG_ELEM_SLURPY_NAMED)) == 0 &&
19:56	jnthn	pmichaud: Yes, that should do it.
19:56	masak	jnthn: it also counts \|$c differently for the public/private attr cases.
19:56	masak	even though it's there in both cases.
19:56	jnthn	masak: You haven't shown that.
19:57	jnthn	masak: [0] in the list of methods is probably not the generated 'foo', but instead the generated accessor method.
19:58	masak	oh.
19:58		whiteknight joined #perl6
19:58	jnthn	Relying on ordering of generated stuff in the method list is not wise.
19:58	pmichaud	...which is why I'd like a .^methods{'foo'} :-)
19:58	pmichaud	I agree that find_method works... but it has that "find_" part in it.
19:59	masak	r: class A { method foo() {} }; class B { has A $.a handles <foo> }; say (grep { .positional && !.invocant }, B.^methods[0].signature.params)[0].name
19:59	p6eval	rakudo c24da0: OUTPUT«No such method 'name' for invocant of type 'Nil'␤ in block <anon> at /tmp/tqiggdrcJ4:1␤␤»
19:59	masak	r: class A { method foo() {} }; class B { has A $.a handles <foo> }; say B.^methods[0].name
19:59	p6eval	rakudo c24da0: OUTPUT«a␤»
19:59	pmichaud	ding!
19:59	masak	jnthn++ masak--
19:59	masak	shoulda checked ;)
20:01	jnthn	pmichaud: .^method_table{'foo'} may well work.
20:01	jnthn	pmichaud: But it's...ugly again probably ;)
20:01	pmichaud	jnthn: no, I like that one.
20:01	jnthn	pmichaud: Be aware that method_table is only the methods directly in the class.
20:01	pmichaud	find_method is too.... active for me
20:01	pmichaud	oh, that's a very good point.
20:01	jnthn	pmichaud: Well, find_method can be very active :)
20:01	pmichaud	Okay, I accept find_method.
20:02	jnthn	pmichaud: If there's any fallback stuff or wildcard delegation going on, find_method is gonna also get you that too.
20:02	pmichaud	...we have no tests for .positional ?
20:02	jnthn	.^methods is purely asking the class about what was added to it, and returns everything up to Cool or Any.
20:02	masak	pmichaud: find_method is definitely active in the case of, say, Grammar::Debugger ;)
20:02	jnthn	Right, that's an excellent example.
20:04	jnthn	pmichaud: S06-signature/introspection.t will contain them if they're anywhere
20:04	pmichaud	jnthn: it does not. I'll add a couple :)
20:04	jnthn	:)
20:05	pmichaud	r: sub xyz(\|$c) { }; say &xyz.signature.params[0].name
20:05	p6eval	rakudo c24da0: OUTPUT«$c␤»
20:06	pmichaud	r: sub xyz(\|$c) { }; say &xyz.signature.params[0].positional
20:06	p6eval	rakudo c24da0: OUTPUT«True␤»
20:06	jnthn	That's the one that I think should be False.
20:06	jnthn	ooc
20:06	jnthn	r: sub xyz(*@a) { }; say &xyz.signature.params[0].positional
20:06	p6eval	rakudo c24da0: OUTPUT«False␤»
20:06	pmichaud	that's explicitly checked for by SIG_ELEM_SLURPY_POS
20:07	jnthn	ah, yes
20:07	pmichaud	19:55 <pmichaud> ($!flags +& ($SIG_ELEM_SLURPY_POS +\| $SIG_ELEM_SLURPY_NAMED)) == 0 &&
20:08	pmichaud	r: sub xyz(\|$c) { }; say &xyz.signature.params[0].slurpy
20:08	p6eval	rakudo c24da0: OUTPUT«False␤»
20:09	pmichaud	...wonder if that should be true :-)
20:09	jnthn	Arguably
20:10	pmichaud	> sub xyz(\|$c) { }; say &xyz.signature.params[0].positional
20:10	pmichaud	False
20:10	jnthn	(The reason there's something to argue mostly being because of its snapshotting semantics.)
20:11	pmichaud	spectesting
20:13	moritz	pmichaud: is &xyz.count still Inf?
20:17	pmichaud	> say &xyz.count
20:17	pmichaud	Inf
20:18	dalek	rakudo/nom: 3e00089 \| pmichaud++ \| src/core/Parameter.pm:
20:18	dalek	rakudo/nom: Fix .positional for capture parameters in signatures. masak++
20:18	dalek	rakudo/nom: review: https://github.com/rakudo/raku[…]commit/3e00089519
20:18	dalek	roast: 7a77ff8 \| pmichaud++ \| S06-signature/introspection.t:
20:18	dalek	roast: [S06]: Add tests for capture parameter introspection of .positional, .named, etc.
20:18	dalek	roast: review: https://github.com/perl6/roast/commit/7a77ff860b
20:27	masak	lol I bloggied! http://strangelyconsistent.org[…]ing-and-restoring
20:27	masak	I again invite people to break the game in ways I didn't predict.
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20:38	tadzik	_sri: yeah, this sucks a bit but it's the only way I know of
20:38	tadzik	there's also Select PMC in Parrot, and IO::Select is a wrapper around that, but it behaved a bit weird to me last time I tried it
20:38	_sri	tadzik: a bit is quite an understatement ;p
20:42	tadzik	:)
20:42	tadzik	I was secretly hoping that it'd work fine for you
20:42	tadzik	I wrote tests for it, but it was a bit like "hmm, what makes sense _and_ works..."
20:44	tadzik	not sure if I ever succeeded on the first part
20:44	tadzik	I have some free time in the upcoming days, maybe I could write some poll/epoll on parrot/nqp level which isn't completely stupid
20:51	dalek	nqp: 8062b32 \| pmichaud++ \| src/QRegex/Cursor.nqp:
20:51	dalek	nqp: [qregex] Add !cursor_more, a preliminary method for handling :g, :ov, :ex.
20:51	dalek	nqp: review: https://github.com/perl6/nqp/commit/8062b3239a
20:51	dalek	nqp: 052b7a1 \| pmichaud++ \| src/pmc/qrpa.pmc:
20:51	dalek	nqp: [qrpa] Fix exception message for shift from empty array (jnthn++).
20:51	dalek	nqp: review: https://github.com/perl6/nqp/commit/052b7a17c9
21:22	masak	good night, #perl6
21:23		ponbiki joined #perl6
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22:03	sorear	how much interest is there in getting github issues on dalek?
22:04	diakopter	the command to close an issue could be 'exterminate'
22:11	sergot	good night o/
22:13	pmichaud	github issues on dalek +1
22:17	jnthn	'night, #perl6
22:21	seldon	Are the d, e, f, l, r, s, t, w, x, and z methods of class IO part of the public API?
22:25	sorear	Yes
22:28	seldon	What do they do?
22:29	pmichaud	they're filetest operators
22:29	pmichaud	.d == is this file a directory
22:29	pmichaud	.e == does this file exist
22:29	seldon	Oh, I see.
22:30	pmichaud	it's what enables things like "foo.txt".io ~~ :f # true if foo.txt exists and is readable
22:30	pmichaud	see "Other things" in http://perlcabal.org/syn/S32/IO.html
22:31	dalek	nqp: 7995664 \| pmichaud++ \| src/ops/nqp.ops:
22:31	dalek	nqp: Clean up some gcc compiler warnings.
22:31	dalek	nqp: review: https://github.com/perl6/nqp/commit/7995664736
22:31	dalek	nqp: eb7f09e \| pmichaud++ \| src/6model/ (4 files):
22:31	dalek	nqp: More compiler warning cleanups.
22:31	dalek	nqp: review: https://github.com/perl6/nqp/commit/eb7f09e0fb
22:31	dalek	nqp: 28f89ef \| pmichaud++ \| src/6model/base64.c:
22:31	dalek	nqp: More casting and code cleanup.
22:31	dalek	nqp: review: https://github.com/perl6/nqp/commit/28f89ef3ff
22:35	seldon	There they are. I didn't make the connection to member functions :o
22:37	seldon	I'm shamelessly lifting method signatures from IO.pm, btw. I hope that's okay.
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23:24	diakopter	pmichaud: does nqp's --target=past still work? It tells me Could not find sub _dumper
23:35		seldon joined #perl6

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