|
This channel is intended for people just starting with the Raku Programming Language (raku.org). Logs are available at irclogs.raku.org/raku-beginner/live.html Set by lizmat on 8 June 2022. |
|||
|
01:35
jgaz left
04:13
MasterDuke left
|
|||
| a12l | Thanks! I thought more of how uc("asdf") === "asdf".uc | 07:29 | |
| In the former case it acts as a subroutine, in the later as a method in the Str class. | 07:30 | ||
| nahita3882 | yeah the former is the "free function form" defined here: multi sub uc($s) { $s.uc } all it does is call .uc on the argument The method form is actually defined in 4 places: - in Nil.rakumod to specifically warn about it - in Cool.rakumod because Methods in Cool coerce the invocant to a more specific type, and then call the same method on that type, which in fact does nothing but self.Str.uc - in | 07:53 | |
| Str.rakumod where it really calls the low-level nqp::uc which performs the upcasing - in allomorphs.rakumod because Allomorphs are a hybrid of a Numeric and a Stringy component, so it gets the Stringy component and then calls .uc on it This co-existence of a functionality in both free-function form and as a method applies for many routines and it is very convenient I think; you can choose to call however you wish. As | |||
| an aside, if you have a sub form but not a method, let's say sub f(Str $s) you can still call it as if it's a method via prefixing it with "&", e.g., raku >>> sub fun(Str $s) { $s.lc ~ $s.uc } &fun >>> "Yes".&fun yesYES Here, "Yes".fun won't work because fun is not attached as a method of the Str class but Raku lets you call as if it's one, provided you do it as .&fun instead of .fun | |||
| (the signature need not be Str $s to work on strings; it can be bare $s without a type constraint, that was only an example) | 07:55 | ||
| a12l | @nahita3882: Thanks for the explanation! | 09:07 | |
|
11:48
lizmat_ joined
11:52
lizmat left
12:02
lizmat_ left,
lizmat joined
14:48
jgaz joined
17:27
gfldex left
17:33
gfldex joined
21:15
jgaz left
|
|||