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Welcome to the main channel on the development of MoarVM, a virtual machine for NQP and Rakudo (moarvm.org). This channel is being logged for historical purposes. Set by lizmat on 24 May 2021. |
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| Nicholas | good *, * | 07:12 | |
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| timo | good -> $a, $b { $a, $b } | 09:53 | |
| moon-child | good { $^a, $^b } | 09:55 | |
| lizmat | good *,* ? | 10:26 | |
| meh | |||
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| japhb | lizmat: Kinda looks like an owl face | 15:28 | |
| lizmat | :-) | ||
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| lizmat | and yet another Rakudo Weekly News hits the Net: rakudoweekly.blog/2021/11/29/2021-...sdem-2022/ | 18:33 | |
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| lizmat | m: my str $a; BEGIN { $a = "foo" } # is this a known issue ? | 19:14 | |
| camelia | 5===SORRY!5=== Error while compiling <tmp> An exception occurred while evaluating a BEGIN at <tmp>:1 Exception details: 5===SORRY!5=== Error while compiling Lexical with name '$a' has wrong type. real type 8 wanted type 7 at… |
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| lizmat | m: BEGIN my str $a = "foo" # golf | 19:15 | |
| camelia | 5===SORRY!5=== Error while compiling <tmp> An exception occurred while evaluating a BEGIN at <tmp>:1 Exception details: 5===SORRY!5=== Error while compiling Lexical with name '$a' has wrong type. real type 8 wanted type 7 at… |
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| lizmat | m: my str constant $a = "foo"; dd $a # this appears ok | ||
| camelia | "foo" | ||
| lizmat | also strange: | 19:34 | |
| m: my %h := BEGIN { my %m is Map = a => 42, b => 666 }; BEGIN { dd %h.keys }; dd %h | |||
| camelia | ().Seq Map.new((:a(42),:b(666))) |
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| lizmat | so one BEGIN time is not another ? | ||
| ugexe | i was thinking it would have to be `BEGIN my %h := ...` but that doesn't do what i expect either | 19:50 | |
| m: BEGIN my %h = my %m is Map = a => 42, b => 666; BEGIN { dd %h.keys }; dd %h.keys | 19:55 | ||
| camelia | ("a", "b").Seq ("a", "b").Seq |
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| ugexe | assignment worked though | 19:56 | |
| lizmat | yeah, but that just makes %h a Hash | ||
| mutable and all | |||
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| jnthnwrthngtn | lizmat: BEGIN-time bindings aren't preserved, only assignments (and native assignment is effectively binding, or more to the point, there's no container) | 22:09 | |
| japhb | jnthnwrthngtn: Why aren't BEGIN-time bindings preserved? | 22:11 | |
| jnthnwrthngtn | The lexical scope surrounding the BEGIN isn't compiled at the time the BEGIN block is, so we have to fake it up, and we don't cheat hard enough to preserve bindings, just hard enough that the "prototype" container is preserved | 22:28 | |
| japhb | Ah interesting | 22:30 | |
| jnthnwrthngtn | I suspect RakuAST will take a different approach to all of this | ||
| japhb | Is PEA or RakuAST first on your agenda for the new year? | 22:31 | |
| jnthnwrthngtn | I don't think it's impossible to make it work (and don't doubt it ideally would work), just wouldn't fancy doing it on the current compiler architecture :) | ||
| japhb | Gotcah | ||
| *Gotcha | |||
| (Gattica?) | |||
| jnthnwrthngtn | Probably a bit of both, though I suspect PEA will be the one that finishes first :) | ||
| Plan to do the re-work of LEAVE-time ahead of either of those (though hoping to do that in December) | 22:32 | ||
| japhb | What will that rework gain us? | 22:34 | |
| jnthnwrthngtn | Much cheaper LEAVE handling, removal of some icky scope hackery, and hopefully a fix for a long-standing bug where return values get messed up sometimes when using LEAVE blocks | 22:44 | |
| While one may not directly use LEAVE very much, it is used in Lock and Lock::Async, for example | 22:45 | ||
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| japhb | Oh, and that's definitely going to end up used a lot in concurrent code (often implicitly, I suspect). | 23:18 | |
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