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github.com/moarvm/moarvm | IRC logs at colabti.org/irclogger/irclogger_logs/moarvm Set by AlexDaniel on 12 June 2018. |
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| kawaii | I don't know if here or #raku is the best place to ask for help about this, but I'm getting the following error today from one of my Perl 6 programs and I have no idea why or what it means :D | 10:43 | |
| `MoarVM panic: Internal error: Unwound entire stack and missed handler` | |||
| moritz | it means you've hit a bug in the rakudo + moarvm combo | ||
| kawaii | it happens as a result of `return $m;` here, if that helps :) www.irccloud.com/pastebin/U36KytR6/ | ||
| moritz | ... but I guess you knew that already :D | ||
| kawaii: that return returns out of the outer routine, not just the callback you passed to .then(). Intentional? | 10:44 | ||
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| kawaii | moritz: seems that we weren't aware of that behaviour, thanks for that information :) | 10:49 | |
| moritz | kawaii: if you replace the 'return $m' by just '$m', you might be fine | ||
| trying to return from a routine that might have already exited might cause weird behavior (though I'd actually hope rakudo would catch such cases) | 10:50 | ||
| kawaii | moritz: yep, seems like using just `$m;` fixed my issue there, thanks :) | ||
| moritz | you're welcome | 10:51 | |
| nwc10 | but even the wrong code still should not panic, surely? | 10:53 | |
| oh, hangon, you sort of said that with different words | 10:54 | ||
| moritz | I tried :D | 10:56 | |
| Altreus | I think I got confused between P5 and Raku behaviour | 11:09 | |
| I assumed that it was a real sub that gets passed to then, but I guess it's just a block | |||
| Is it always a block when you do -> { }? So return will never apply to that construct but the outer one? | 11:10 | ||
| moritz | correct | 11:20 | |
| bu fo course you write .then(sub ($p) { ... }) to ues a "full" subroutine | 11:21 | ||
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| Altreus | I see! I had misunderstood -> {} to be a shorthand to a sub | 14:24 | |
| cos of the params you see | 14:25 | ||
| lizmat | Altreus: you should consider the sub / method syntax as a special case of the generic block syntax, not the other way around | 14:26 | |
| Altreus | ah! OK :) | ||
| jnthn | The type system even agrees :) | 14:27 | |
| m: say Sub.^mro | |||
| camelia | ((Sub) (Routine) (Block) (Code) (Any) (Mu)) | ||
| Altai-man_ | Altreus, don't want to be a villain, but $channel... | ||
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| Altreus | for sure :) | 17:42 | |
| Didn't know whether to maintain context or maintain encapsulation | 17:43 | ||
| The eternal dilemma | |||
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