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2020-11-10 01:31:57 × jedws quits (~jedws@101.184.150.81) (Quit: My MacBook has gone to sleep. ZZZzzz…)
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2020-11-10 01:42:30 hackage predicate-typed 0.7.4.3 - Predicates, Refinement types and Dsl https://hackage.haskell.org/package/predicate-typed-0.7.4.3 (gbwey)
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2020-11-10 01:53:16 erisco joins (~erisco@d24-57-249-233.home.cgocable.net)
2020-11-10 01:53:30 hackage hsaml2 0.1.1 - OASIS Security Assertion Markup Language (SAML) V2.0 https://hackage.haskell.org/package/hsaml2-0.1.1 (DylanSimon)
2020-11-10 01:53:51 <GreeboSnabble> Is there a way to put a constraint on a type parameter without using it up?
2020-11-10 01:54:20 <GreeboSnabble> Like (Ord k) => M.Map k
2020-11-10 01:54:26 × da39a3ee5e6b4b0d quits (~textual@cm-171-98-91-242.revip7.asianet.co.th) (Ping timeout: 256 seconds)
2020-11-10 01:55:00 <GreeboSnabble> Except I want it to be of kind * -> * -> *
2020-11-10 01:55:17 × jmcarthur quits (~jmcarthur@2601:86:500:2a40:db56:5d66:5919:c95d) (Ping timeout: 272 seconds)
2020-11-10 01:55:24 × Igloo quits (~igloo@81.2.99.210) (Ping timeout: 272 seconds)
2020-11-10 01:55:37 <erisco> no, constraints cannot be lifted
2020-11-10 01:56:04 <GreeboSnabble> Thanks :\
2020-11-10 01:58:03 thir joins (~thir@p200300f27f0b7e00f4e9381c2bf90854.dip0.t-ipconnect.de)
2020-11-10 01:59:26 × justanotheruser quits (~justanoth@unaffiliated/justanotheruser) (Ping timeout: 264 seconds)
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2020-11-10 02:11:34 × SupaYoshi quits (~supayoshi@213-10-140-13.fixed.kpn.net) (Quit: Goodbye!)
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2020-11-10 02:39:05 hololeap joins (~hololeap@unaffiliated/hololeap)
2020-11-10 02:39:26 <hololeap> % :t handle
2020-11-10 02:39:26 <yahb> hololeap: forall {e} {a}. Exception e => (e -> IO a) -> IO a -> IO a
2020-11-10 02:39:32 <hololeap> % :t handle print
2020-11-10 02:39:32 <yahb> hololeap: ; <interactive>:1:1: error:; * Ambiguous type variable `a0' arising from a use of `handle'; prevents the constraint `(Exception a0)' from being solved.; Probable fix: use a type annotation to specify what `a0' should be.; These potential instances exist:; instance Exception NestedAtomically -- Defined in `Control.Exception.Base'; instance Exception NoMethodError -- D
2020-11-10 02:39:42 <hololeap> i don't understand this
2020-11-10 02:39:58 <hololeap> any Exception is also an instance of Show
2020-11-10 02:40:50 × da39a3ee5e6b4b0d quits (~textual@cm-171-98-91-242.revip7.asianet.co.th) (Ping timeout: 256 seconds)
2020-11-10 02:42:45 × raehik quits (~raehik@cpc95906-rdng25-2-0-cust156.15-3.cable.virginm.net) (Ping timeout: 258 seconds)
2020-11-10 02:43:42 <glguy> hololeap: you have to pick one exception type in particular
2020-11-10 02:44:05 <glguy> and you've lost the ability to specify which one you're picking
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2020-11-10 02:45:15 × jakob_ quits (~textual@p200300f49f162200d485fdd402f900db.dip0.t-ipconnect.de) (Quit: My Laptop has gone to sleep. ZZZzzz…)
2020-11-10 02:47:08 <glguy> % :set -XAllowAmbiguousTypes
2020-11-10 02:47:08 <yahb> glguy:
2020-11-10 02:47:24 <glguy> % let f :: forall e. Exception e => IO () -> IO (); f = handle @e print
2020-11-10 02:47:24 <yahb> glguy:
2020-11-10 02:48:06 <glguy> % f @SomeException (fail "glguy")
2020-11-10 02:48:07 <yahb> glguy: user error (glguy)
2020-11-10 02:48:16 × leungbk quits (~user@cpe-104-33-52-83.socal.res.rr.com) (Ping timeout: 256 seconds)
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2020-11-10 02:49:16 × cantstanya quits (~chatting@gateway/tor-sasl/cantstanya) (Remote host closed the connection)
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