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2020-10-19 09:51:22 <dminuoso> What warning are you referring to?
2020-10-19 09:51:48 <merijn> dminuoso: If you have "IO (IO ())"
2020-10-19 09:51:56 <dminuoso> There's a warning for that?
2020-10-19 09:51:58 × GyroW quits (~GyroW@unaffiliated/gyrow) (Quit: Someone ate my pie)
2020-10-19 09:52:07 × heatsink quits (~heatsink@107-136-5-69.lightspeed.sntcca.sbcglobal.net) (Ping timeout: 246 seconds)
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2020-10-19 09:52:08 × GyroW quits (~GyroW@d54C03E98.access.telenet.be) (Changing host)
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2020-10-19 09:52:12 <dminuoso> % pure getLine
2020-10-19 09:52:13 <yahb> dminuoso:
2020-10-19 09:52:49 <merijn> -Wwrong-do-bind
2020-10-19 09:52:59 <merijn> dminuoso: Only in do notation
2020-10-19 09:53:35 <dminuoso> Ah.
2020-10-19 09:53:40 <dminuoso> % :set -Wall
2020-10-19 09:53:40 <yahb> dminuoso:
2020-10-19 09:53:48 <dminuoso> % do { pure getLine; pure 1 }
2020-10-19 09:53:48 <yahb> dminuoso: ; <interactive>:67:6: warning: [-Wunused-do-bind]; A do-notation statement discarded a result of type `IO String'; Suppress this warning by saying `_ <- pure getLine'; <interactive>:67:25: warning: [-Wtype-defaults]; * Defaulting the following constraints to type `Integer'; (Num a0) arising from the literal `1' at <interactive>:67:25; (Show a0) arising from a use of `print' a
2020-10-19 09:54:08 → thir joins (~thir@p200300f27f2f0100d058ed1e9e148e98.dip0.t-ipconnect.de)
2020-10-19 09:54:13 <merijn> % :set -Wall -Wno-unused-do-bind
2020-10-19 09:54:13 <yahb> merijn:
2020-10-19 09:54:18 <merijn> % do { pure getLine; pure 1 }
2020-10-19 09:54:19 <yahb> merijn: ; <interactive>:69:25: warning: [-Wtype-defaults]; * Defaulting the following constraints to type `Integer'; (Num a0) arising from the literal `1' at <interactive>:69:25; (Show a0) arising from a use of `print' at <interactive>:69:1-27; * In the first argument of `pure', namely `1'; In a stmt of a 'do' block: pure 1; In the first argument of `GHC.GHCi.ghciStepIO :: for
2020-10-19 09:54:23 <merijn> ugh
2020-10-19 09:54:31 <merijn> % do { pure getLine; pure 'c' }
2020-10-19 09:54:31 <dminuoso> % do { pure getLine; pure "foo" }
2020-10-19 09:54:31 <yahb> merijn: 'c'
2020-10-19 09:54:31 <yahb> dminuoso: "foo"
2020-10-19 09:54:34 → manishearth1 joins (~manishear@195.206.169.184)
2020-10-19 09:54:36 <merijn> hmm
2020-10-19 09:54:41 <dminuoso> Maybe its not included in Wall?
2020-10-19 09:54:42 <merijn> Maybe someone broke the warning :p
2020-10-19 09:54:46 <merijn> It used to work
2020-10-19 09:54:49 <dminuoso> % :set -Wall -Wno-unused-do-bind -Wwrong-do-bind
2020-10-19 09:54:49 <yahb> dminuoso:
2020-10-19 09:54:51 <dminuoso> % do { pure getLine; pure "foo" }
2020-10-19 09:54:51 <yahb> dminuoso: "foo"
2020-10-19 09:54:58 <dminuoso> Never seen it fire..
2020-10-19 09:55:05 <merijn> % do { return getLine; pure 'c' }
2020-10-19 09:55:05 <yahb> merijn: 'c'
2020-10-19 09:55:10 <merijn> I have :p
2020-10-19 09:55:18 <merijn> But that was long ago in 7.x
2020-10-19 09:55:31 <dminuoso> fair enough, either way, this diagnostic doesnt seem useful ot me
2020-10-19 09:55:46 <dminuoso> but, if I had it for free why not
2020-10-19 09:56:01 × MindlessDrone quits (~MindlessD@unaffiliated/mindlessdrone) (Ping timeout: 264 seconds)
2020-10-19 09:56:02 <merijn> It's helpful to not lose "free" actions after something like allocate
2020-10-19 09:56:15 <dminuoso> but -Wno-unused-do-bind should become my default
2020-10-19 09:56:36 <merijn> It already is for me :p
2020-10-19 09:56:48 <merijn> dminuoso: Don't forget to enable -Wcompat, I always forget >.>
2020-10-19 09:57:08 <dminuoso> I avoid the need by never updating GHC.
2020-10-19 09:57:13 <dminuoso> :p
2020-10-19 09:57:18 <merijn> ;)
2020-10-19 09:57:38 <dminuoso> jokes aside, we're still using 8.6.5 for one project.
2020-10-19 09:57:58 <merijn> I just moved my phd codebase from 8.6.5 to 8.10.2 :)
2020-10-19 09:58:13 <dminuoso> Willing to bet facebook is still running on 7.*
2020-10-19 09:58:31 → grimgnr joins (~user@94.19.246.43)
2020-10-19 09:58:56 <merijn> Probably not, ApplicativeDo is 8.x, no? :p
2020-10-19 09:58:57 <dminuoso> 2 years ago they still were, and Simon kept humming and hawing when asked when they wanted to switch to 8.0..
2020-10-19 09:59:10 × darjeeli1 quits (~darjeelin@122.245.211.155) (Ping timeout: 258 seconds)
2020-10-19 09:59:11 <dminuoso> Mmm
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2020-10-19 09:59:22 <dminuoso> Then they must be stuck on 8.0 or 8.2 then
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2020-10-19 10:16:42 <kuribas> dminuoso: what's wrong with 6.8.5?
2020-10-19 10:16:52 <kuribas> erm 8.6.5
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2020-10-19 10:25:30 <maerwald> yeah, you can't switch GHC just like that, especially if you rely on certain performance characteristics of your code
2020-10-19 10:25:50 <maerwald> new version might be slower or faster or behave different for whatever reason
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2020-10-19 10:29:53 <dminuoso> kuribas: I like staying up to date on GHC for bug fixes and new features.
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2020-10-19 10:30:20 <kuribas> dminuoso: are no bug fixes done for 8.6.5?
2020-10-19 10:30:23 <dminuoso> I dont want my compiler/base be the reason why I cant get package `xyz` at a desired version.
2020-10-19 10:30:51 <dminuoso> kuribas: The GHC team doesn't have the capacity to backport all fixes promptly.
2020-10-19 10:31:16 <kuribas> I prefer a stable compiler over a cutting edge one with the latest features.
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