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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. |
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| lizmat | and yet another Rakudo Weekly News hits the Net: rakudoweekly.blog/2023/07/10/2023-...mposition/ | 11:07 | |
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| knorrfg | Hey, this example program raku enum AliasId <cha-prod cha-debug cha-bootl cha-prel ipg-debug ipg-release>; sub MAIN(AliasId $alias) { say $alias; } returns the usage string, when invoked with the single argument "cha-prod" I would like to automatically check that the string argument is a valid AliasId, and have it converted to that type, is that possible? | 13:42 | |
| nemokosch | hello, I think there are issues with loading the symbols right on time; your mileage might even vary depending on the names you pick | 13:45 | |
| knorrfg | ehm. Could you explain that in more detail? | 13:46 | |
| nemokosch | well... probably not. Sometimes it works, sometimes it doesn't. | ||
| knorrfg | Ok, so in general, what can I do to make this, or something similar work reliably | 13:47 | |
| ? | |||
| nemokosch | by the way, I just copied your code into a demo script and called it with cha-prod and that worked | ||
| in fact, all of this worked for me | 13:48 | ||
| knorrfg | well. My script is a little bigger, I just extracted this. Also a module is loaded, but that shouldn't really impact things | ||
| nemokosch | That might very well impact things | ||
| really, I don't know how it works and why but I have stumbled upon issues with it myself | 13:49 | ||
| for example, if there is a name collision with something coming from the core library (in my case that was the name Label) then it doesn't work | |||
| something that I did notice is that a module that I like to use for argument processing, Getopt::Long, fixes these issues for free | 13:50 | ||
| github.com/rakudo/rakudo/issues/5091 this might be your problem in some shape or form | 13:51 | ||
| knorrfg | Ok, I'll look into it. Thanks | 13:52 | |
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