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2020-09-24 14:41:18 × Guest74273 quits (~z0@bl17-248-65.dsl.telepac.pt) (Ping timeout: 256 seconds)
2020-09-24 14:41:53 <maerwald> sm[m]: we tend to add esoteric stuff, but not care too much about technical deb
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2020-09-24 14:41:55 <maerwald> t
2020-09-24 14:42:16 <dminuoso> sm[m]: I dont think it's the right characterization. I find it unlikely that the main thing that people drives away from Haskell is "String is inefficient".
2020-09-24 14:42:38 <int-e> but why does it have to be in base... base is too big already
2020-09-24 14:43:09 → jedws joins (~jedws@2001:8003:337f:1b00:4ccc:a9c7:5cc7:b953)
2020-09-24 14:43:13 <Cale> The thing that prevents Haskell from being popular is that it is very much unlike most other programming languages
2020-09-24 14:43:22 → schiava_trav joins (~luca@2001:b07:6463:cabb:a808:a7b7:a175:cb05)
2020-09-24 14:43:23 <geekosaur> I thought @free didn't support typeclasses or something like that
2020-09-24 14:43:26 <sm[m]> here's the full comment for context: https://news.ycombinator.com/item?id=24570095
2020-09-24 14:43:38 <Cale> geekosaur: ah, perhaps!
2020-09-24 14:43:39 <dolio> It supports some now.
2020-09-24 14:43:41 <Cale> @free map
2020-09-24 14:43:43 <lambdabot> g . h = k . f => $map g . map h = map k . $map f
2020-09-24 14:43:48 ← schiava_trav parts (~luca@2001:b07:6463:cabb:a808:a7b7:a175:cb05) ()
2020-09-24 14:43:50 <Cale> Yeah, there we go
2020-09-24 14:43:59 <dolio> But it wouldn't support functor, I think.
2020-09-24 14:44:00 × henninb quits (~henninb@63-226-191-96.mpls.qwest.net) (Client Quit)
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2020-09-24 14:44:12 <dolio> Oh wait, I think I'm thinking of djinn.
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2020-09-24 14:46:13 <AWizzArd> How efficiently can ghc compile this? setA a <> setB b <> ... <> setZ z $ defaultConfig
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2020-09-24 14:46:38 <AWizzArd> The end result will be setA a defaultConfig <> setB b defaultConfig <> ... <> setZ z defaultConfig
2020-09-24 14:46:50 <dminuoso> AWizzArd: Hard to say in general.
2020-09-24 14:47:08 <AWizzArd> ok
2020-09-24 14:47:20 <dolio> It might figure it all out, but it seems like it's just asking for trouble.
2020-09-24 14:47:22 <dmwit> How inefficient is it possible to get with something so simple?
2020-09-24 14:47:43 <int-e> ghc inlines heavily so this can easily reduce to a single constructor application.
2020-09-24 14:48:28 × adamwespiser quits (~adam_wesp@209.6.42.110) (Ping timeout: 260 seconds)
2020-09-24 14:48:44 <dminuoso> AWizzArd: Also, for that concrete part, compile with -O2 and look at the core?
2020-09-24 14:48:55 <dminuoso> Then you know exactly how GHC will compile it. ;)
2020-09-24 14:49:04 <dmwit> The worst thing I can imagine the compiler doing has the same asymptotics as the best thing I can imagine it doing.
2020-09-24 14:49:23 × snakemasterflex quits (~snakemast@213.100.206.23) (Ping timeout: 256 seconds)
2020-09-24 14:50:18 × wroathe quits (~wroathe@c-68-54-25-135.hsd1.mn.comcast.net) (Ping timeout: 256 seconds)
2020-09-24 14:50:19 <int-e> Constructing a configuration... seems unlikely to be a hotspot in the code.
2020-09-24 14:50:59 <int-e> If it were a hotspot... constant factors matter.
2020-09-24 14:51:20 × heatsink quits (~heatsink@107-136-5-69.lightspeed.sntcca.sbcglobal.net) (Ping timeout: 272 seconds)
2020-09-24 14:51:38 <int-e> (And we care. List fusion mostly does not affect asymptotics, but it makes a huge difference for constant factors.)
2020-09-24 14:51:38 → snakemasterflex joins (~snakemast@213.100.206.23)
2020-09-24 14:52:42 <int-e> (List fusion, ironically, also means that our inefficient String type can carry a lot of stuff efficiently enough... as long as strings are generated and consumed on the fly, not stored.)
2020-09-24 14:52:54 × sQVe quits (~sQVe@unaffiliated/sqve) (Quit: Bye!)
2020-09-24 14:53:49 <dolio> Does text do fusion?
2020-09-24 14:54:05 <Taneb> Yes, sometimes
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2020-09-24 15:25:04 <AWizzArd> Is there a way to register some kind of onSuccessfulServerStart hook that will allow me to print "Service started!" somewhere?
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2020-09-24 15:31:31 <phadej> using what? warp?
2020-09-24 15:32:03 <phadej> there is e.g. https://hackage.haskell.org/package/warp-3.3.13/docs/Network-Wai-Handler-Warp.html#v:setBeforeMainLoop
2020-09-24 15:33:07 <AWizzArd> phadej: looks good
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