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T22707.hs:6:59: error: [GHC-25897]
• Couldn't match expected type ‘i1’
with actual type ‘m0 GHC.Types.LiftedRep GHC.Types.LiftedRep b0’
‘i1’ is a rigid type variable bound by
the type signature for:
t1 :: forall i2 o i1 a. Cont (i2 -> o) i1 a -> Cont o i2 (a -> i1)
at T22707.hs:5:1-47
• In the expression: evalCont (t1 c) >>== \ ati1 -> return ati1 xa
In the second argument of ‘($)’, namely
‘\ xa -> evalCont (t1 c) >>== \ ati1 -> return ati1 xa’
In the second argument of ‘runCont’, namely
‘(ati1tti2
$ \ xa -> evalCont (t1 c) >>== \ ati1 -> return ati1 xa)’
• Relevant bindings include
ati1tti2 :: (a -> i1) -> i2 (bound at T22707.hs:6:16)
c :: Cont (i2 -> o) i1 a (bound at T22707.hs:6:4)
t1 :: Cont (i2 -> o) i1 a -> Cont o i2 (a -> i1)
(bound at T22707.hs:6:1)
T22707.hs:6:72: error: [GHC-25897]
• Couldn't match type ‘o’
with ‘m0
GHC.Types.LiftedRep
GHC.Types.LiftedRep
(m0 GHC.Types.LiftedRep GHC.Types.LiftedRep b0)’
Expected: Cont
((a -> i1)
-> m0
GHC.Types.LiftedRep
GHC.Types.LiftedRep
(m0 GHC.Types.LiftedRep GHC.Types.LiftedRep b0))
i1
a
Actual: Cont (i2 -> o) i1 a
‘o’ is a rigid type variable bound by
the type signature for:
t1 :: forall i2 o i1 a. Cont (i2 -> o) i1 a -> Cont o i2 (a -> i1)
at T22707.hs:5:1-47
• In the first argument of ‘t1’, namely ‘c’
In the first argument of ‘evalCont’, namely ‘(t1 c)’
In the first argument of ‘(>>==)’, namely ‘evalCont (t1 c)’
• Relevant bindings include
c :: Cont (i2 -> o) i1 a (bound at T22707.hs:6:4)
t1 :: Cont (i2 -> o) i1 a -> Cont o i2 (a -> i1)
(bound at T22707.hs:6:1)
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