| definition: |
catchE :: (Monad m) => ExceptT e m a -> (e -> ExceptT e' m a) -> ExceptT e' m a
m `catchE` h = ExceptT $ do
a <- runExceptT m
case a of
Left l -> runExceptT (h l)
Right r -> return (Right r)
|
| demand: |
no demanded arguments |
| deterministic: |
deterministic operation |
| failfree: |
(_, _, _) |
| indeterministic: |
referentially transparent operation |
| infix: |
no fixity defined |
| iotype: |
{(_,_,_) |-> _}
|
| name: |
catchE |
| precedence: |
no precedence defined |
| result-values: |
_ |
| signature: |
Prelude.Monad b => ExceptT a b c -> (a -> ExceptT d b c) -> ExceptT d b c |
| solution-complete: |
operation might suspend on free variables |
| terminating: |
yes |
| totally-defined: |
reducible on all ground data terms |