Check 'pure' method of 'Applicative (WrappedMonad m)'
Should
instance Monad m => Applicative (WrappedMonad m) where
pure = WrapMonad . pure
WrapMonad f <*> WrapMonad v = WrapMonad (f `ap` v)not use return?
instance Monad m => Applicative (WrappedMonad m) where
pure = WrapMonad . return
WrapMonad f <*> WrapMonad v = WrapMonad (f `ap` v)Trac metadata
| Trac field | Value |
|---|---|
| Version | 8.0.1 |
| Type | Bug |
| TypeOfFailure | OtherFailure |
| Priority | normal |
| Resolution | Unresolved |
| Component | Compiler |
| Test case | |
| Differential revisions | |
| BlockedBy | |
| Related | |
| Blocking | |
| CC | |
| Operating system | |
| Architecture |