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Xliff I would actually write a sub that wraps ReqQueryValueExW which does all that for you so you can use it more or less like you'd expect. 00:01
ToddAndMargo would you give mr. confused here another vpaste?
Xliff LOL
Of the wrapper?
ToddAndMargo of what you sent me previously 00:05
Xliff vpaste.net/pKKuI 00:07
Ah, crap. That's wrong. 00:09
vpaste.net/At8QP <- This one isn't
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ToddAndMargo I has to go help my wife with something. I will have to change some stuff around 00:16
Thank you!
Xliff OK. Good luck!
yw
Kaeipi i'd appreciate any input you guys might have on www.reddit.com/r/rakulang/comments...ant_to_be/ 00:22
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Xliff .tell jnthn Is there a mechanism that allows a raku script to compile raku code and emit .moarvm bytecode? If so, is there another mechanism that will allow a raku script to then execute that bytecode? EVAL, maybe? 01:05
tellable6 Xliff, I'll pass your message to jnthn
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xinming_ How do we pass an array to multi MAIN? 07:57
For example, multi test ('x', @array) { ... }; I try something like `raku t.p6 x a b c`, It will only display the command line 07:58
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CIAvash xinming_: You probably want `*@array` 08:33
xinming_ CIAvash: I don't mean that. :-) 08:37
I do mean @array. As when we use :@array, We can do --array 1 --array 2 to pass array. So, I wonder how we do positional arg
CIAvash your example suggested that. so what happens to a value after the array? example: ('x', @array, 'y'). Maybe I'm wrong but I don't think MAIN has a case for that. 08:41
xinming_ CIAvash: If so, I think we should raise error in this case. 08:54
multi test ('xx', @array) { } raise error to mean @array is not supported
in raku multi, test('x', @array, 'y') etst('x', $other-object, 'y') will work as expected 08:55
SmokeMachine: termbin.com/qrey <--- I think you mis-understood me, What I mean multi-column constraint is something like this. 09:07
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xinming_ multi MAIN ('xx', @array) { } should inform user it's error to do so. 09:40
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Tirifto Hello! Is my understanding correct that prefixing a variable's name with a colon in subroutine invocation passes a pair to the subroutine, whose key is the variable's name and whose value is the variable's value? (Thus requiring a variable to exist in the current scope with a name identical to the key expected by the subroutine which takes named arguments?) 13:04
sena_kun Tirifto: yes, you are correct. 13:19
Tirifto sena_kun: Thanks! 13:23
xinming_ m: my %h = ("a" .. "z"); %h.perl.say; for %h<>:p.sort(*.key) -> ($k, $v) { [$k, $v].perl.say; } 13:33
camelia {:a("b"), :c("d"), :e("f"), :g("h"), :i("j"), :k("l"), :m("n"), :o("p"), :q("r"), :s("t"), :u("v"), :w("x"), :y("z")}
Too few positionals passed to '<anon>'; expected 2 arguments but got 0 in sub-signature
in block <unit> at <tmp> line 1
xinming_ In this case, How do we unpack the pair produced with .sort method?
as far as I tried, 13:37
m: my %h = ("a" .. "z"); for %h<>:p.sort(*.key) -> (:$key, :$value) { $key.perl.say; }
camelia "a"
"c"
"e"
"g"
"i"
"k"
"m"
"o"
"q"
"s"
"u"
"w"
"y"
xinming_ This worked, But I still wish to know wether it's possible to do something like -> ($key, $value) directly.
Fianlly got it. :-) 13:39
sena_kun m: my %h = ("a" .. "z"); for %h.sort(*.key) -> (:$key, :$value) { $key.perl.say; }
camelia "a"
"c"
"e"
"g"
"i"
"k"
"m"
"o"
"q"
"s"
"u"
"w"
"y"
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SmokeMachine xinming_: no, it's not working yet... 14:26
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Kaeipi are there better ways to check if code is being run at compile-time than checking for something like DYNAMIC::<$*W>:exists? 15:14
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AlexDaniel u: 𓅭 16:24
unicodable6 AlexDaniel, U+1316D EGYPTIAN HIEROGLYPH G039 [Lo] (𓅭)
AlexDaniel u: EGYPTIAN HIEROGLYPH
unicodable6 AlexDaniel, U+13000 EGYPTIAN HIEROGLYPH A001 [Lo] (𓀀)
AlexDaniel, U+13001 EGYPTIAN HIEROGLYPH A002 [Lo] (𓀁)
AlexDaniel, 1080 characters in total: gist.github.com/3b54ca491ec800cb1a...6328b965bc
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Poohman Hello all 17:50
m: class A { has Str $.b is rw;} A.^attributes; 17:51
camelia 5===SORRY!5=== Error while compiling <tmp>
Strange text after block (missing semicolon or comma?)
at <tmp>:1
------> 3class A { has Str $.b is rw;}7⏏5 A.^attributes;
expecting any of:
infix
infix stopper
…
Poohman m: class A { has Str $.b is rw;}; A.^attributes;
camelia ( no output )
Poohman m: class A { has Str $.b is rw;}; say A.^attributes;
camelia (Str $!b)
Poohman hello all 17:52
why is the ^attributes showing $!b instead of $.b??
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lizmat Poohman: because $!b is the real name of the attribute 18:27
"has $.b" signals that an accessor should be made for the attribute
using $.b in code, is just syntactic sugar for "self.b", with the advantage that it interpolates 18:28
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Poohman thanks lizmat - what do you mean by interpolates? 18:30
lizmat say "the value of b is $.b"
vs: 18:31
say "the value of b is {self.b}"
Poohman ok 18:33
sarna hey, I want to be able to take any digits from a number, what would be the optimal way of doing this? in a static language I'd turn that int into a string and then into a char array, and then index into it 18:37
but I think that approach would be suboptimal in raku
lizmat m: dd "foobar".chomp # sarna
camelia "foobar"
lizmat m: dd "foobar".comb # oops
camelia ("f", "o", "o", "b", "a", "r").Seq 18:38
sarna m: dd 1234.comb
camelia ("1", "2", "3", "4").Seq
lizmat m: for "foobar".comb -> $letter { say $letter }
camelia f
o
o
b
a
r
sarna ha, thanks lizmat :D
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chloekek You can also use $.b when b is a normal user-defined method. 18:48
p6: class C { method m { "m" }; method n { "l $.m n" } }; C.new.n.say
camelia l m n
lizmat personally, I dislike using that that way, but yeah, you can :-) 18:52
I doubt it will be in the RBP book :-) 18:53
sarna m: dd [1,2][*-2 .. *-1]; dd [1][*-2] or 0; dd ([1][*-2 .. *-1] or [1][*-1]) 18:55
camelia WARNINGS for <tmp>:
Useless use of constant integer 0 in sink context (line 1)
(1, 2)
Failure.new(exception => X::OutOfRange.new(what => "Effective index", got => -1, range => "0..^Inf", comment => Any), backtrace => Backtrace.new)
(Failure.ne…
sarna heck
m: say [1,2][*-2 .. *-1]; say [1][*-2] or 0; say ([1][*-2 .. *-1] or [1][*-1])
camelia WARNINGS for <tmp>:
(1 2)
Useless use of constant integer 0 in sink context (line 1)
Effective index out of range. Is: -1, should be in 0..^Inf
in block <unit> at <tmp> line 1
sarna m: say [1,2][*-2 .. *-1]; say ([1][*-2] or 0); say ([1][*-2 .. *-1] or [1][*-1]) 18:57
camelia (1 2)
Effective index out of range. Is: -1, should be in 0..^Inf
in block <unit> at <tmp> line 1

0
sarna groans
m: say [1,2][*-2 .. *-1]; say ([1][*-2] or 0);
camelia (1 2)
0
sarna m: say ([1][*-2 .. *-1] or [1][*-1])
camelia Effective index out of range. Is: -1, should be in 0..^Inf
in block <unit> at <tmp> line 1
sarna how to make this one work? the third one 18:58
lizmat m: [1][*-2]
camelia Effective index out of range. Is: -1, should be in 0..^Inf
in block <unit> at <tmp> line 1
lizmat m: dd [1,2][*-2]
camelia Int element = 1
lizmat the list is too small to handle * - 2 18:59
sarna yes, and if the list is too small, I want to give it a default value
m: say ([1][*-2] or 0);
camelia 0
sarna like here
but I want to do this with a range (a slice?) instead of just one element
lizmat m: dd [1][*-2 .. *-1] 19:00
camelia (Failure.new(exception => X::OutOfRange.new(what => "Effective index", got => -1, range => "0..^Inf", comment => Any), backtrace => Backtrace.new), 1)
lizmat hmmm
sarna I wonder if that's possible at all :D 19:01
lizmat m: dd [1][*-2 .. *-1] of [1][*-1]
camelia 5===SORRY!5=== Error while compiling <tmp>
Bogus statement
at <tmp>:1
------> 3dd [1][*-2 .. *-1] o7⏏5f [1][*-1]
expecting any of:
whitespace
lizmat m: dd [1][*-2 .. *-1] or [1][*-1]
camelia (Failure.new(exception => X::OutOfRange.new(what => "Effective index", got => -1, range => "0..^Inf", comment => Any), backtrace => Backtrace.new), 1)
lizmat m: dd [1][*-4 .. *-1] or [1][*-1]
camelia (Failure.new(exception => X::OutOfRange.new(what => "Effective index", got => -3, range => "0..^Inf", comment => Any), backtrace => Backtrace.new), Failure.new(exception => X::OutOfRange.new(what => "Effective index", got => -2, range => "0..^Inf", co…
sarna m: my @l = [1]; say ([ @l[*-2] or 0, @l[*-1] or 0]) 19:02
camelia [0 1]
sarna :D
lizmat :-) 19:03
sarna m: my @l = [1]; say [ @l[*-5] or 0 .. @l[*-1] or 0] # unfortunately I get two elements with this one as well
camelia [0 1]
sarna (thought I'd get five or something)
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Xliff . 19:11
Poohman chloekek: thanks 19:37
will self.new(|%args) work?? 19:42
I want to instantiate a class inside a member function
lizmat Poohman: that should generally work, yes 19:45
if your class.new accepts named arguments, is it would by default
Poohman I keep getting "cannot look up objects in a xxxx type object" 19:46
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lizmat objects? not attributes 19:54
?
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lizmat m: class A { has $!a; method a() { $!a } }; A.a 19:54
camelia Cannot look up attributes in a A type object
in method a at <tmp> line 1
in block <unit> at <tmp> line 1
lizmat Poohman: that's the one ? ^^^
Poohman lizmat : yes 19:55
Xliff m: my $sub = -> |c { c.gist.say }; $sub('a', 2, π)
camelia \("a", 2, 3.141592653589793e0)
lizmat then you probably forgot to instantiate an object somewhere
Xliff m: my $sub = -> |c { |c.gist.say }; $sub('a', 2, π) 19:56
camelia \("a", 2, 3.141592653589793e0)
Xliff m: my $sub = -> |c { |c.gist.say }; $sub('a', [1, 2, 3], π)
camelia \("a", [1, 2, 3], 3.141592653589793e0)
Poohman im trying to instantiate it inside method a
Xliff m: sub printargs( *@a ) { .gist.say for @a }; my $sub = -> |c { printargs(|c) }; $sub('a', [1, 2, 3], π) 19:57
camelia a
1
2
3
3.141592653589793
Xliff m: sub printargs( +@a ) { .gist.say for @a }; my $sub = -> |c { printargs(|c) }; $sub('a', [1, 2, 3], π)
camelia a
[1 2 3]
3.141592653589793
lizmat Poohman: maybe make a gist ?
Poohman m: class B {has $.a is rw; method b() {self.new(a => "test")}}; my B $temp; $temp.b();say $temp.a; 20:10
camelia Cannot look up attributes in a B type object
in method a at <tmp> line 1
in block <unit> at <tmp> line 1
lizmat Poohman: you probably want 'my B $temp .= new' rather than 'my B $temp' 20:11
the latter just sets a type constraint on the $temp, it does *not* create an object 20:12
m: my Int $a; say $a
camelia (Int)
Poohman m: class B {has $.a is rw; method b() {self.new(a => "test")}}; my B $temp .= new; $temp.b();say $temp.a; 20:13
camelia (Any)
Poohman but in that case new will be used twice
is that ok? 20:14
lizmat hmmm.... good point... lemme look closer :-)
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lizmat I guess I'm not sure what you want to achieve 20:15
do you want to achieve an alternate object instantiation method ? 20:16
m: class A { has $.a; method b() { self.new( a => "test" ) } }; dd A.b
camelia A.new(a => "test")
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Poohman Lizmat: Im trying to introspect the data member attributes and generate the user input and then instantiate the object 20:23
lizmat but how can you inspect data members if you haven't instantiated yet ? 20:24
Poohman im just checking the datatypes etc and then im trying to get the corresponding user input - for example if the data member is of type Date, I make sure the user input is of the correct type 20:25
then using the generated hash im trying to instantiate 20:26
m: class A { has $.a; method b() { self.new( a => "test" ) }; say self }; my A $temp; $temp.b(); 20:28
camelia 5===SORRY!5=== Error while compiling <tmp>
'self' used where no object is available
at <tmp>:1
------> 3od b() { self.new( a => "test" ) }; say 7⏏5self }; my A $temp; $temp.b();
expecting any of:
argument list
…
Poohman m: class A { has $.a; method b() { self.new( a => "test" ); say self }}; my A $temp; $temp.b(); 20:29
camelia (A)
Poohman m: class A { has $.a; method b() { self.new( a => "test" ); say self.a; }}; my A $temp; $temp.b();
camelia Cannot look up attributes in a A type object
in method a at <tmp> line 1
in method b at <tmp> line 1
in block <unit> at <tmp> line 1
lizmat self inside method "b" is a type object. 20:30
it's *not* an instantiated object
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Poohman ok 20:30
lizmat and a type object does not have any attributes
which is what the error message is trying to tell you :-)
my A $temp; $temp.b will *not* automagically make $temp an instantiated object 20:31
you *can* do that, if that's what you want
m: class A { has $.a; method b(\SELF:U:) { SELF = self.new(a => "test") } }; my A $foo; $foo.b; dd $foo 20:32
camelia 5===SORRY!5=== Error while compiling <tmp>
Preceding context expects a term, but found infix = instead.
Did you make a mistake in Pod syntax?
at <tmp>:1
------> 3A { has $.a; method b(\SELF:U:) { SELF =7⏏5 self.new(a => "test") } }; m…
lizmat m: class A { has $.a; method b(\SELF:) { SELF = self.new(a => "test") } }; my A $foo; $foo.b; dd $foo 20:33
camelia A $foo = A.new(a => "test")
lizmat \SELF: means assigning the name SELF to the un-decontainerized invocant, which you can assign to 20:34
perhaps better readable: 20:35
m: class A { has $.a; method b($invocant is rw:) { $invocant = self.new(a => "test") } }; my A $foo; $foo.b; dd $foo
camelia A $foo = A.new(a => "test")
Poohman m: class A { has $.a; method b($invocant is rw:) { $invocant = self.new(a => "test") } }; my A $foo; $foo.b; dd $foo; say $foo.a; 20:37
camelia A $foo = A.new(a => "test")
test
20:41 RobRaku left
Poohman was reading up on $invocant 20:42
cool
lizmat: thanks
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lizmat m: dd ∞i # expressiveness :-) 22:07
camelia <0+Inf\i>
chloekek p6: dd 0+Inf\i 22:09
camelia <0+Inf\i>
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chloekek bisectable6: class A { }; class B { }; multi sub infix:<cmp>(A $a, B $b) { Order::More }; multi sub infix:<cmp>(B $b, A $a) { Order::Less }; [A.new, B.new].sort.say 22:36
bisectable6 chloekek, On both starting points (old=2015.12 new=5c65a12) the exit code is 0 and the output is identical as well
chloekek, Output on both points: «(A.new B.new)␤»
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chloekek bisectable6: class A { }; class B { }; multi sub infix:<cmp>(A $a, B $b) { Order::More }; multi sub infix:<cmp>(B $b, A $a) { Order::Less }; [B.new, A.new].sort.say 22:39
bisectable6 chloekek, On both starting points (old=2015.12 new=5c65a12) the exit code is 0 and the output is identical as well
chloekek, Output on both points: «(A.new B.new)␤»
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chloekek p6: multi f(Int $x) { say 'Int' }; sub g($x) { f($x) }; sub h { multi f(Str $x) { say 'Str' }; g('a') }; h 22:51
camelia Cannot resolve caller f(Str:D); none of these signatures match:
(Int $x)
in sub g at <tmp> line 1
in sub h at <tmp> line 1
in block <unit> at <tmp> line 1
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SmokeMachine xinming_: github.com/FCO/Red/blob/master/t/3...-columns.t 23:14
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SmokeMachine xinming_: now it's implemented... :) 23:20
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