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2020-10-19 08:45:01 → ephemera_ joins (~E@122.34.1.187)
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2020-10-19 08:49:26 → delYsid joins (~user@zidpc777.tugraz.at)
2020-10-19 08:51:39 <delYsid> -Wname-shadowing drives me crazy. I guess I have been spoiled by Rust. I find myself often rebinding the same name, and finding new names is a waste of time. Adding the umteenth tick doesnt help with readability. Am I alone, or is -Wname-shadowing a pretty pedantic default?
2020-10-19 08:53:04 × heatsink quits (~heatsink@107-136-5-69.lightspeed.sntcca.sbcglobal.net) (Ping timeout: 256 seconds)
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2020-10-19 08:55:58 hackage focus 1.0.1.4 - A general abstraction for manipulating elements of container data structures https://hackage.haskell.org/package/focus-1.0.1.4 (NikitaVolkov)
2020-10-19 08:56:13 <lortabac> delYsid: I tend to use long names for toplevel definitions and abbreviations for the local ones, so I rarely get that warning
2020-10-19 08:56:32 <dminuoso> delYsid: It's a very pedantic default indeed.
2020-10-19 08:57:03 × Psycomic quits (~Phi@2a01:e0a:18:d0a0:a923:9b97:77a2:ce49) (Quit: Leaving)
2020-10-19 08:57:45 <dminuoso> delYsid: One of the main annoyances is that you can't selectively turn it off for a binding via some pragma.
2020-10-19 08:58:31 → Whez joins (~textual@2a01:e0a:21f:1060:45e3:a6ce:25be:e68)
2020-10-19 08:58:51 <dminuoso> Strangely, there's 2 parts where this would be useful. One is orphan instances, the other is shadowing names, but the GHC maintainers shot down attempts to cook something up for some "overarching universal tool to disable diagnostics selectively" idea, that nobody has followed for many years.
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2020-10-19 09:00:02 × elsimio quits (~elsimio@185.204.1.185) ()
2020-10-19 09:01:01 × infinity0 quits (~infinity0@freenet/developer/infinity0) (Ping timeout: 246 seconds)
2020-10-19 09:01:13 <kuribas> +1 for a pragma to disable it.
2020-10-19 09:01:25 × phr0m3indh0v3n quits (~Android@84.241.205.21) (Ping timeout: 240 seconds)
2020-10-19 09:01:47 <kuribas> it's occasionally useful
2020-10-19 09:01:47 × knupfer quits (~Thunderbi@dynamic-046-114-151-029.46.114.pool.telefonica.de) (Read error: Connection reset by peer)
2020-10-19 09:02:05 <Uniaika> sometimes I use expressions to avoid having to produce new variables to store intermediate values
2020-10-19 09:02:13 <dminuoso> This diagnostic really is a double-edged sword. It tends to discover infinite recursion errors rather well, at the cost of having to rename your binders all the time.
2020-10-19 09:02:14 <Uniaika> that doesn't apply everywhere of course
2020-10-19 09:02:27 <Uniaika> but you can replace some do-notation with an applicative
2020-10-19 09:02:41 <dminuoso> (though the cases of infinite recursion Im talking about are rather rare)
2020-10-19 09:02:48 <dminuoso> Perhaps just disabling the diagnostic is better
2020-10-19 09:05:57 hackage stm-containers 1.2 - Containers for STM https://hackage.haskell.org/package/stm-containers-1.2 (NikitaVolkov)
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2020-10-19 09:08:51 <merijn> I think it's a sane enough default, if it really bothers you you can just turn it off >.>
2020-10-19 09:08:57 hackage stm-containers 1.1.0.5 - Containers for STM https://hackage.haskell.org/package/stm-containers-1.1.0.5 (NikitaVolkov)
2020-10-19 09:09:08 <merijn> I find -Wunused-do-bind much less useful, tbh
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2020-10-19 09:10:56 × whald quits (~trem@2a02:810a:8100:11a6:6d28:5eff:640c:9eda) (Quit: Leaving)
2020-10-19 09:11:25 → phr0m3indh0v3n joins (~Android@84.241.205.74)
2020-10-19 09:12:01 <kuribas> infinite recursion errors are really hard to debug
2020-10-19 09:12:08 × babygnu quits (~robert@111.169.23.93.rev.sfr.net) (Quit: Leaving)
2020-10-19 09:13:14 × Whez quits (~textual@2a01:e0a:21f:1060:45e3:a6ce:25be:e68) (Quit: My MacBook Air has gone to sleep. ZZZzzz…)
2020-10-19 09:13:32 × heatsink quits (~heatsink@107-136-5-69.lightspeed.sntcca.sbcglobal.net) (Ping timeout: 260 seconds)
2020-10-19 09:13:46 <dminuoso> Are they, really?
2020-10-19 09:14:00 × MindlessDrone quits (~MindlessD@unaffiliated/mindlessdrone) (Ping timeout: 260 seconds)
2020-10-19 09:14:01 <kuribas> yes
2020-10-19 09:14:20 <dminuoso> `+RTS xs -RTS` + sigint works rather well for me
2020-10-19 09:15:13 <kuribas> what's xs?
2020-10-19 09:15:18 <dminuoso> Err sorry xc
2020-10-19 09:15:28 <dminuoso> The muscle memory defeated me. :)
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2020-10-19 09:16:34 <kuribas> good to know
2020-10-19 09:17:17 → MindlessDrone joins (~MindlessD@unaffiliated/mindlessdrone)
2020-10-19 09:17:26 <dminuoso> You can also use GHCi with `:set -fbreak-on-error`
2020-10-19 09:17:39 <dminuoso> And then run the offending expression with `:trace expr`
2020-10-19 09:17:53 <dminuoso> Send sigint via Ctrl+C, then you have :history and :back
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2020-10-19 09:21:09 <maerwald> how do you figure out what error codes a servant handler might return?
2020-10-19 09:21:54 <Taneb> maerwald: there's not currently a way but there's active work ongoing to change this
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2020-10-19 09:28:12 <maerwald> Taneb: since 2017 https://github.com/haskell-servant/servant/issues/841
2020-10-19 09:28:20 <maerwald> :D
2020-10-19 09:28:41 <maerwald> I'm late to the party
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2020-10-19 09:34:28 hackage chessIO 0.4.0.0 - Basic chess library https://hackage.haskell.org/package/chessIO-0.4.0.0 (mlang)
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2020-10-19 09:44:59 <dminuoso> A do-notation statement discarded a result of type ‘Void’
2020-10-19 09:45:05 <dminuoso> merijn: You know what, you're right.
2020-10-19 09:46:52 × fendor quits (~fendor@77.119.130.12.wireless.dyn.drei.com) (Remote host closed the connection)
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2020-10-19 09:50:24 <merijn> There's two warnings for do, one for "you used something with a non-() return in a do block" and one for "you returned an unused 'IO a' in a do block"
2020-10-19 09:50:37 <merijn> The latter is somehwat useful, but the first one is just bollocks
2020-10-19 09:50:54 <merijn> You end up wrapping everything in your parser with void ot "_ <-"
2020-10-19 09:51:08 <dminuoso> unused `IO a`?
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