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[10:44] <Voldenet> it might not be intended, but since it's a regular sub, there's no reason why it shouldn't work

[10:44] <Voldenet> m: sub prefix:<§>($a, $b) { say $a, $b }; 5 ==> prefix:<§>(2) # it's as good as this

[10:44] <camelia> rakudo-moar e17a1d43b: OUTPUT: «25␤»

[11:00] <Voldenet> I can kinda imagine it not working in rakuast, like it doesn't work in rakupp for instance

[11:00] <lizmat> m: Q|sub prefix:<§>($a, $b) { say $a, $b }; 5 ==> prefix:<§>(2)|.AST.EVAL

[11:00] <camelia> rakudo-moar e17a1d43b: OUTPUT: «25␤»

[11:01] <lizmat> not sure why that wouldn't work in RakuAST ?

[11:02] <lizmat> does rakupp allow creation of custom prefixes?

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[14:41] <Voldenet> yes it does, but it's not supported everywhere

[14:41] <Voldenet> rakupp is cutting many corners in order to be fast itseems

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[14:46] <disbot> <antononcube> I don't think Rakupp is cutting corners intentionally, it is more of "side effect" or "byproduct" of its development process.

[14:48] <Voldenet> also true, doubt introducing this syntax would make it significantly slower anyway

[14:48] <disbot> <antononcube> For example, I submitted issues for certain missing functionalities and they appeared after a week or so.

[14:49] <disbot> <antononcube> Rakupp is still slower on algorithms / packages I am mostly interested in.

[14:54] <Voldenet> Well, for a lot of my use cases runtime actually is slower most often

[14:55] <Voldenet> but for a lot of scripts that are short anyway, it's just quicker to complete

[14:55] <Voldenet> because of 150ms startup time…

[14:59] <disbot> <antononcube> This is one of the reasons I used Python in certain "production level" recommender systems few years ago. Python the did not have the fastest sparse matrix algebra (still, very fast, though) but since it can start and re-hydrate objects so quickly (say, 70 times faster that Wolfram Language and 20 times faster than R) it was simply a superior solution.

[15:03] <disbot> <antononcube> Here is a screenshot of a Rakudo-vs-Rakupp comparison "presentation slide" from the Raku study group meeting last week:

[15:03] <disbot> <antononcube> https://cdn.discordapp.com/attachments/633753286209699870/1550885116862271558/Rakudo-and-Rakupp-in-Wolfram-notebook.png?ex=6aaff5d1&is=6aaea451&hm=3b06de312ce2ee669c442f625b03f7cebcf49db363a4e24e04693c3484798aa6&

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[16:40] <Voldenet> because of that tradeoff people don't like rust so much

[16:40] <Voldenet> compilation times can be severe

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[23:38] <DemandDystopia> Hm, I checked some more feedop stuff and it predictably works for type and position (incl terms). It working for infixes would probably be interesting if there wasn't list associativity to do the same thing but more flexible

[23:38] <DemandDystopia> m: sub infix:<§> { "⟦$^a $^b $^c⟧"}; say (1 § 2 <== 3 § 4 <== 5);

[23:38] <camelia> rakudo-moar e17a1d43b: OUTPUT: «⟦1 2 ⟦3 4 5⟧⟧␤»

[23:39] <DemandDystopia> though for postcircumfix it seems like it takes raku quite a lot longer than the other things? At least for the online compilers like glot & stuff even a normal one seems slower & this like it makes it worse, is that a known thing?

[23:39] <DemandDystopia> m: sub postcircumfix:<⟪ ⟫>  {"⟪$^a $^b⟫"}; say (6⟪7⟫)

[23:39] <camelia> rakudo-moar e17a1d43b: OUTPUT: «⟪6 7⟫␤»

[23:40] <DemandDystopia> oh, wrong paste

[23:40] <DemandDystopia> m: sub postcircumfix:<⟪ ⟫>  {"⟪$^a $^b $^c⟫"}; say (6⟪7⟫ <== 8)

[23:40] <camelia> rakudo-moar e17a1d43b: OUTPUT: «⟪6 7 8⟫␤»

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