🦋 Welcome to the MAIN() IRC channel of the Raku Programming Language (raku.org). Log available at irclogs.raku.org/raku/live.html . If you're a beginner, you can also check out the #raku-beginner channel!
Set by lizmat on 6 September 2022.
00:00 reportable6 left 00:01 reportable6 joined 00:26 thaewrapt left 00:36 thaewrapt joined 00:39 jpn joined 00:44 jpn left 01:09 kylese left 01:10 kylese joined 01:25 itaipu left 01:30 nine left, nine joined 01:40 jpn joined 01:45 jpn left 02:15 kylese left, kylese joined
roguerakudev are there any plans to make arrays whose elements are all known to be of a given type compatible with typed array parameters? 02:19
e.g. sub foo(Int @ints) { ... } currently doesn't accept [1, 2, 3] as an argument 02:20
because [1, 2, 3] is technically untyped 02:21
[Coke] I haven't heard of it - I imagine it would be potentially costly.
roguerakudev I kinda get why it is the way it is, but it's rather annoying when you want to ensure things are of a certain type but don't want to impose an undue burden on callers
so you end up doing something like @param where @param.all ~~ Type or similar, and it feels a bit dirty 02:22
[Coke] sub foo(Int @ints) { dd @ints}; foo(Array[Int].new(1,2,3)) 02:23
evalable6 Array[Int].new(1, 2, 3)
evalable6_ Array[Int].new(1, 2, 3)
[Coke] can I recommend a multi with a strict type, and one with the manual type check? 02:24
roguerakudev yeah, Array[Foo].new(...) just seems needlessly verbose when it's clear that all elements are of type Foo (even at compile time)
Coke - in the end I will probably just remove the constraint and trust the caller 02:25
I like the idea that the programmer can start prototyping without type constraints and then add them as the design cements, but right now this behavior discourages me from adding in typing in many cases 02:27
ugexe the pattern i ended up following was using a separate assignment altogether, i.e. `my Candidate @results = @candidates; return @results;` 02:28
either way, it is a bit unfortunate it requires copying 02:30
roguerakudev more generally, parameterized types don't currently DWIM imo, but there's probably some edge case that prevents Foo[Bar] from being a subtype of Foo[Baz] in every case even if Bar is a subtype of Baz
maybe in an ideal world we'd have some way to mark such edge cases while the default is that Foo[Bar] ~~ Foo[Baz] (e.g. Array[SomeType] ~~ Array[Any]) 02:32
or maybe the default is the other way, and things like Array are marked as having that property, whatever that property would be called 02:33
oh wait, that already is the case 02:38
[1, 2] isn't even Array[Any], it's just Array - but somehow I expect the absence of that type parameter to make it default to Any, so maybe that's the crux of the issue 02:39
bah, I'm on too little sleep for all this reasoning 02:41
02:41 jpn joined
for reference, Positional's type defaults to Mu, but Any vs. Mu doesn't really matter in this context github.com/rakudo/rakudo/blob/881c...rakumod#L1 02:42
so maybe it's sufficient for list/array/hash literals to take on the most specific common type of the elements as their associated role/class's type parameter? 02:44
if [1, 2] were always Array[Int], that shouldn't (?) break anything given that Positional[Int] is compatible with Positional[Mu] 02:45
02:47 jpn left 03:42 jpn joined 03:47 jpn left 04:03 Guest89 joined 04:13 Guest89 left 04:33 Xliff joined
Xliff m: say 1, 1, 2, 3...*+* 04:33
camelia (1 1)
Xliff Why isn't that sequence evaluating?
m: say 1, 1, 2, 3..*+*
camelia 112WhateverCode.new
04:43 jpn joined 04:49 jpn left 04:57 merp left 05:03 merp joined 05:44 jpn joined 05:46 Sgeo left 05:50 jpn left 06:00 reportable6 left 06:01 reportable6 joined 06:36 stoned75 joined 06:37 stoned75 left 06:45 jpn joined 06:50 jpn left 07:00 lucerne left 07:31 jpn joined 07:36 lucerne joined 08:03 jpn left 08:55 jpn joined 09:24 sena_kun joined 09:34 Guest1580 joined
nahita3882 > If the endpoint is not , it's smartmatched against each generated element and the sequence is terminated when the smartmatch succeeded. in your case the endpoint is a WhateverCode with arity 2, so it takes the first 2 elements of the sequence which are 1 and 1, subjects it to ` + *` which gives 1 + 1 = 2, which is truthful so the sequence is terminated and yields 1, 1 09:39
did you mean 1, 1, * + * ... *?
(your second message was evaluating to a List with 4 elements: 1, 1, 2 and a WhateverCode with the body 3 .. * + *, i.e., a Range maker from 2 arguments) 09:41
09:48 vms14 left 09:52 vms14 joined, Guest1580 left 10:21 eseyman left 10:45 manu_ joined 10:47 vms14 left, vms14_ joined 10:49 manu_ is now known as eseyman 11:05 vms14_ is now known as vms14 11:49 jpn left 12:00 reportable6 left 12:03 reportable6 joined 12:16 jpn joined 12:36 zara joined 12:40 jpn left 12:52 zara left 14:16 jpn joined 14:25 jpn left 14:41 jpn joined 15:08 jpn left 15:49 bdju left 16:18 xinming left 16:23 xinming joined 16:31 bdju joined 16:38 avuserow left, avuserow joined 16:55 jpn joined
dr.shuppet Oh so that's what it says, I didn't see the italics and didn't realize there are *s in there 17:05
m: say (1, 1, 2, 3, * + * ... *)[0..10] 17:07
evalable6 (1 1 2 3 5 8 13 21 34 55 89)
Raku eval (1 1 2 3 5 8 13 21 34 55 89)
17:07 thaewrapt left 17:10 thaewrapt joined 17:13 thaewrapt left 17:21 teatime joined 17:25 thaewrapt joined
Geth docker: m-dango++ created pull request #65:
Bump to 2024.04		 17:33
18:00 reportable6 left 18:01 reportable6 joined 19:17 linkable6_ left, evalable6_ left 19:18 linkable6_ joined 19:19 evalable6_ joined 19:24 jpn left 19:33 jpn joined 19:43 jpn left 19:47 vms14 left, vms14 joined 20:50 jpn joined 21:14 itaipu joined 21:17 jpn left 21:33 jpn joined 21:38 jpn left 22:09 jpn joined 22:14 jpn left, leah2 left 22:22 leah2 joined 22:43 sena_kun left 23:12 jpn joined 23:17 jpn left 23:39 Sgeo joined

Powered by Cro and the Raku® Programming Language.

Please report any issues / comments / feature requests as an issue on App::Raku::Log.

Thank you!