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Set by lizmat on 14 August 2022.
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habere-et-disper Can one use with with a hash? 09:54
Something like:
m:  my %bar = <a 1>; say {a} with %bar
camelia ===SORRY!=== Error while compiling <tmp>
Undeclared routine:
a used at line 1
habere-et-disper Okay I think I got it... 09:57
m: my %bar = <a 1>; say .<a> with %bar
camelia 1
Nemokosch .<a> and it should be fine
or .{'a'}
habere-et-disper Thanks discord-raku-bot !
Nemokosch 😁 09:59
habere-et-disper I am enjoying the extra allowance of whitespace in raku, but I can't get it here: 10:10
and have to use
or am I missing some more magic?
Whoops:
`/ < :Separator > /` versus `/ <:Separator> /`
Nemokosch what is the goal? 10:17
leont Having a very weird dispatch related issue. But I guess you could say I'm stress testing it given it involves multi methods, conversion types and capture arguments. 10:20
Nemokosch well, consider opening a rakudo issue if it's suspicious enough 10:21
I remember samewith didn't work with caching, for example 10:22
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lizmat tonyo: rak 0.0.14 fell into a black hole it seems, 0.0.15 (only doc changes) uploaded and now visible 10:25
tonyo: still wondering what happened to 0.0.14
Nemokosch did you not get a mail? 10:30
it may even end up in spam
lizmat no mail, checked my spam 10:36
in any case, the upload was successful and it said that it would get indexed: if there was something wrong with it, it would have said it at upload, no ? 10:37
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Nemokosch iirc I did get mails after supposedly succesful uploads 10:50
and I only noticed it later that it didn't just fail randomly
tbrowder howdy! 10:53
i'm trying to load a module with 'require' and test for sucess per the docs but not having any luck. i'm using the syntax shown in the docs: 10:55
my $m = 'Foo'; require ::($m); if $m ~~ Failure { die "$m not loaded" } 10:57
i don't bail there, but the module isn't loaded and my prog fails later when attempting to access it. hm, i'll try to test that at the require point. docs may need a little tweak... 10:59
habere-et-disper @discord-raku-bot: Experimenting with readability. Not sure if it helps here. 11:03
Nahita tbrowder: hi, if `require` fails to find the module, it will `fail` and since it's in sink context, the program will die at that point, no? Also `$m` is a defined String so it's not a Failure? Documentation shows `try` require'ing with lookup and then checking ::($m) ~~ Failure 11:09
leont Nemokosch: I will open a ticket as soon as I narrowed it down. It's tricker than I thought 11:12
tellable6 leont, I'll pass your message to Nemokosch 11:13
habere-et-disper Is there a recommended way to iterate within a method chain? 11:20
Voldenet m: my $m = "Foo"; if (try require ::($m)) === Nil { die "$m not loaded" } 11:22
camelia Foo not loaded
in block <unit> at <tmp> line 1
Voldenet habere-et-disper: *iterate* meaning what, something like .map? 11:30
(^10).map({ $_ * 3 }).say 11:33
evalable6 (0 3 6 9 12 15 18 21 24 27)
Voldenet alternatively 11:34
m: (^10).&{ gather { for $_ { take $_ * 3 } } }.say
camelia (0 3 6 9 12 15 18 21 24 27)
Voldenet there's even more ways to do that 11:40
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leont I really need to write a solution for the enum issue I mention, because I just hit it for the third time this week 11:58
*mentioned at the conference
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habere-et-disper @Voldenet++ Map does a single pass. I'm looking to do multiple passes... 12:35
m: my %VOWELS = < A 1 E 2 I 3 O 4 U 5 >.pairup; say <AEIOU>.comb.map( *.subst( .key, .value ) with %VOWELS )
camelia ===SORRY!=== Error while compiling <tmp>
Unable to parse expression in argument list; couldn't find final ')' (corresponding starter was at line 1)
at <tmp>:1
------> .comb.map( *.subst( .key, .value ) with ⏏%VOWELS )
tbrowder nahita: thanks. the syntax (....) and " 12:36
die does what i need
(try require ::($m)) === Nil and die "FATAL: msg"; 12:38
i don't grok it but it works. to me the whole try/CATCH blurb in the docs needs a rework. not many practical examples for my use. 12:39
i 12:49
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Voldenet >(try require ::($m)) === Nil and die "FATAL: msg"; 13:17
this syntax is fancy and confusing way to write `if (try require ::($m)) === Nil { die "$m not loaded" }`
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lizmat just realized that the next App::Rak version will have 90+ options 13:44
CIAvash `try require ::('Test'); die "FATAL: $_" with $!`? 13:45
s/'Test'/$m/
leont Oh FFS. Apparently I can't pre-declare an enum, and taking it out of the class it's currently in means it will leak over the main namespace instead of just that class.
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leont «Circularity detected in multi sub types», that is a new error! 14:19
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tbrowder Voldenet: thanks, yes, and that’s golfing code to me, but writing it that does look more natural. 14:56
but that’s part of the charm of Raku! 14:57
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Voldenet uhm, in many langs you can use && for ifs, but in all of them it's an ugly hack 15:50
Nemokosch Shell vibe 15:56
`or die`
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ugexe leont: could you do `{ my enum ...; class Foo { ... } } }`? 16:51
leont My problem with the current behavior is that the values leak out. I do need the type to be out there. 16:52
I can't get one behavior without the other
ugexe it shouldnt leak out of that outer lexical scope in my example though 16:54
m: { my enum XX <a b c>; class Foo { method bar { say a } } }; say a; 16:55
camelia ===SORRY!=== Error while compiling <tmp>
Undeclared routine:
a used at line 1
ugexe m: { my enum XX <a b c>; class Foo { method bar { say a } } }; Foo.new.bar;
camelia a
ugexe although yeah even if that does what you want its still a workaround 16:56
leont I'm probably going to try to write a trait to make it not do that 16:57
It's easy enough to sabotage the exporting of values, but in the original scope it's rather hardcoded at the moment 16:58
ugexe yeah, and i guess my example doesn't get you the e.g. XX
CIAvash leont: yeah I have problem with enums exporting values by default as well. Maybe I should open an issue for it. This is what I did in my module: codeberg.org/CIAvash/APISports-Foo...od#L70-L78 17:00
leont CIAvash: this seems to work for exports pastebin.com/JU1LyC4r 17:03
CIAvash interesting 17:08
leont Should maybe release that as a module, but was distracted by other projects 17:10
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habere-et-disper I was expecting the following two to be equivalent: 19:07
m: say 1..10 X**2
camelia (1 4 9 16 25 36 49 64 81 100)
habere-et-disper m: say 1..10 X²
camelia ((1 2) (2 2) (3 2) (4 2) (5 2) (6 2) (7 2) (8 2) (9 2) (10 2))
habere-et-disper I am thinking wrong?
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japhb habere-et-disper: The first one is X'ing the infix **, the second is trying to X a postfix, with no second array. So instead it sees the superscript 2 as the only element of the second array, not as the postfix operator. 19:55
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habere-et-disper @japhb++ I think clarity lies in seeing ** as infix and superscript 2 as postfix when cross requires(?) infix 20:00
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Nemokosch so why did the second succeed exactly? 20:24
habere-et-disper @discord-raku-bot: This one has caught me out before. I think implicitly there is a default list constructor (comma) implied. So... 20:33
m: say ( (1..10) X² ) eqv ( (1..10) X,² )
camelia True
leont «Impossible coercion from 'Composer' into 'Composer': method COERCE returned an instance of Composer» that is not a very helpful error (but the problem was PEBCAK of course) 20:41
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