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🦋 Welcome to the MAIN() IRC channel of the Raku Programming Language (raku.org). This channel is logged for the purpose of keeping a history about its development | evalbot usage: 'm: say 3;' or /msg camelia m: ... | Logs can be inspected at colabti.org/irclogger/irclogger_log/raku Set by lizmat on 1 May 2021. |
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| canbenshanlo | Playing around with game of life in raku atm. How do i swap shaped arrays? This doesn't work: | 00:06 | |
| m: my @a[3;3]; my @b[3;3]; (@a, @b) = (@b, @a) | |||
| camelia | Index 3 for dimension 2 out of range (must be 0..2) in block <unit> at <tmp> line 1 |
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| codesections | Does [@a, @b] = [@b, @a] do what you want? | 00:17 | |
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| canbenshanlo | doesn't seem to be swapping. is it only returning a newly allocated junk of mem? | 00:26 | |
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| canbenshanlo | for ^steps { `my Bool @next[$dim; $dim];` ... @curr = @next; } works for now i guess | 00:28 | |
| interesting that shaped arrays are so much slower than the manual indexing via $row * $dim + $col. Or maybe my fedora raku package is missing some of the shaped array optimization goodies i've been reading about in the weekly | 00:31 | ||
| newly allocated chunk* | 00:34 | ||
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| raydiak | bisectable6: my @a[1]; my @b[1]; @a = @b; dd @a | 04:13 | |
| bisectable6 | raydiak, Will bisect the whole range automagically because no endpoints were provided, hang tight | ||
| raydiak, Output on all releases: gist.github.com/992d291eff8557cba2...474c0e1edd | |||
| raydiak, Bisecting by output (old=2019.11 new=2020.01) because on both starting points the exit code is 1 | |||
| raydiak, bisect log: gist.github.com/888e5e275505a170e1...4faf2943d6 | 04:14 | ||
| raydiak, (2020-01-02) github.com/rakudo/rakudo/commit/62...ecef98b6dc | |||
| raydiak, Bisecting by exit code (old=2016.10 new=2016.11). Old exit code: 0 | |||
| raydiak, bisect log: gist.github.com/e739b66f87cfe86a6d...083dc8ccc3 | |||
| raydiak, (2016-11-09) github.com/rakudo/rakudo/commit/a1...69246719c6 | |||
| raydiak, ⚠ New output detected, please review the results manually | |||
| raydiak, Output on all releases and bisected commits: gist.github.com/092a9a8aa6ab9d4985...625c0e33f8 | |||
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| cog_ | #vscode | 11:15 | |
| arf | |||
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| stoned75 | m: releases Int.^mro(:roles) | 13:04 | |
| camelia | 5===SORRY!5=== Error while compiling <tmp> Undeclared routine: releases used at line 1. Did you mean 'reverse', 'repeated'? |
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| stoned75 | m: release Int.^mro() | 13:05 | |
| camelia | 5===SORRY!5=== Error while compiling <tmp> Undeclared routine: release used at line 1. Did you mean 'reverse'? |
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| stoned75 | m: release say "hi" | ||
| camelia | 5===SORRY!5=== Error while compiling <tmp> Undeclared routine: release used at line 1. Did you mean 'reverse'? |
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| stoned75 | arf | 13:06 | |
| commit: releases Int.^mro(:roles) | |||
| committable6 | stoned75, gist.github.com/e49bd3f34fe24bef5d...a5ed0ac0bf | ||
| stoned75 | commit: releases Int.^roles(:mro) | 13:09 | |
| committable6 | stoned75, gist.github.com/f45e5350faa893c4af...29f8aac9dd | 13:10 | |
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| tbrowder | hi, i’m looking for a practical use for an enum in a signature to express a user’s desire for a particular option. the option should have a default. | 15:56 | |
| i have written a sub with that use that works, but i see no real advantage over strings and regexes. | 15:58 | ||
| comments? (i’m away from home so i can’t yet show a gist of it). | 15:59 | ||
| lizmat | m: $ r 'enum U <FOO BAR BAZ>; sub a(U $a = FOO) { dd $a }; a; a BAR; a 42 | ||
| camelia | 5===SORRY!5=== Error while compiling <tmp> Two terms in a row at <tmp>:1 ------> 3$7⏏5 r 'enum U <FOO BAR BAZ>; sub a(U $a = F expecting any of: infix infix stopper statement end statement … |
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| lizmat | m: enum U <FOO BAR BAZ>; sub a(U $a = FOO) { dd $a }; a; a BAR; a 42 | ||
| camelia | U::FOO U::BAR Type check failed in binding to parameter '$a'; expected U but got Int (42) in sub a at <tmp> line 1 in block <unit> at <tmp> line 1 |
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| lizmat | it would give you a runtime error if you specify something wrong ? | 16:00 | |
| Altreus | That seems like the sort of error that needs repackaging for user display | 16:06 | |
| Although all errors need repackaging for user display | |||
| Lest the user be not speaking of the English | |||
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| tbrowder | lizmat: thanks! | 16:43 | |
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| canbenshanlo | is there something like .flat(1) in raku? what i'm currently doing: | 17:24 | |
| m: say (((1,2,3), (4,5,6), (7,8,9))).flat.rotor(3) | 17:25 | ||
| camelia | ((1 2 3) (4 5 6) (7 8 9)) | ||
| tonyo | m: say (((1,2,3), (4,5,6), (7,8,9))) | 17:27 | |
| camelia | ((1 2 3) (4 5 6) (7 8 9)) | ||
| tonyo | if you're just want it to flatten use a pipe | 17:28 | |
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| moon-child | probably want (((1,2,3), (4,5,6), (7,8,9)),) | 17:28 | |
| tonyo | m: say (((1,2,3), (4,5,6), (7,8,9),),) | ||
| camelia | (((1 2 3) (4 5 6) (7 8 9))) | ||
| tonyo | m: say |(((1,2,3), (4,5,6), (7,8,9),),) | ||
| camelia | ((1 2 3) (4 5 6) (7 8 9)) | ||
| moon-child | m: my @x = (((1,2,3), (4,5,6), (7,8,9)),); say @x; say @x.map(&slip) | 17:29 | |
| camelia | [((1 2 3) (4 5 6) (7 8 9))] ((1 2 3) (4 5 6) (7 8 9)) |
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| canbenshanlo | seems to work. thanks a lot | 17:31 | |
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| moon-child | it would be nice if deepmap took a max depth | 17:50 | |
| codesections | I haven't used it much, but would &tree be able to do that with the right arguments? | 17:51 | |
| moon-child | e.g. deepmapping over [[1], [[2, 3], [4, 5]], [[1], 1]] with depth 1 would apply separately to: [1], [2, 3], [4, 5], [[1], 1] | ||
| codesections: hmmm | 17:53 | ||
| I'm not sure how you would get 'back' out of the tree representation | |||
| tbrowder | ref enums and signatures, besides the advantage of type-checking per lizmat above, i refound the cool way to use them is you can smart match without the // on the enum key as well as // on the key OR value. | 17:56 | |
| let me try to demo.l.. | 17:57 | ||
| i'll post a gist, too much for m | 18:00 | ||
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| gfldex | tbrowder: multi sub MAIN(*@input, VideoType :t(:$videotype) = movie, Bool :$verbose) { | 21:21 | |
| tbrowder: whereby enum VideoType <movie screencast>; | 21:22 | ||
| tbrowder | gfldx: roger, thnx | 21:23 | |
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| gfldex | tbrowder: in case you need more ideas, here is the whole script gist.github.com/gfldex/0497452da51...272e88be98 | 21:25 | |
| tbrowder | ah, the given $videotype block shows exactly a cool way to use the enum, thanks | 21:29 | |
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| canbenshanlo | is there a take-while-like method in raku? [3,5,1,2,3].take_while(&:odd?) => [3,5,1] | 23:52 | |
| ugexe | grep + unique | 23:57 | |
| m: sub odd ($i) { $i !%% 2 }; say [3,5,1,2,3].grep(&odd).unique; | |||
| camelia | (3 5 1) | ||
| canbenshanlo | but this still evalutes the whole list, right? | 23:59 | |