Hoogle Search

Within LTS Haskell 24.37 (ghc-9.10.3)

Note that Stackage only displays results for the latest LTS and Nightly snapshot. Learn more.

Exact lookup

1. catchJust :: Exception e => (e -> Maybe b) -> IO a -> (b -> IO a) -> IO a

   base	Control.Exception

   The function catchJust is like catch, but it takes an extra argument which is an exception predicate, a function which selects which type of exceptions we're interested in.

   catchJust (\e -> if isDoesNotExistErrorType (ioeGetErrorType e) then Just () else Nothing)
   (readFile f)
   (\_ -> do hPutStrLn stderr ("No such file: " ++ show f)
   return "")
   

   Any other exceptions which are not matched by the predicate are re-raised, and may be caught by an enclosing catch, catchJust, etc.

2. handleJust :: Exception e => (e -> Maybe b) -> (b -> IO a) -> IO a -> IO a

   base	Control.Exception

   A version of catchJust with the arguments swapped around (see handle).

3. tryJust :: Exception e => (e -> Maybe b) -> IO a -> IO (Either b a)

   base	Control.Exception

   A variant of try that takes an exception predicate to select which exceptions are caught (c.f. catchJust). If the exception does not match the predicate, it is re-thrown.

4. catchJust :: Exception e => (e -> Maybe b) -> IO a -> (b -> IO a) -> IO a

   base	Control.Exception.Base

   The function catchJust is like catch, but it takes an extra argument which is an exception predicate, a function which selects which type of exceptions we're interested in.

   catchJust (\e -> if isDoesNotExistErrorType (ioeGetErrorType e) then Just () else Nothing)
   (readFile f)
   (\_ -> do hPutStrLn stderr ("No such file: " ++ show f)
   return "")
   

   Any other exceptions which are not matched by the predicate are re-raised, and may be caught by an enclosing catch, catchJust, etc.

5. handleJust :: Exception e => (e -> Maybe b) -> (b -> IO a) -> IO a -> IO a

   base	Control.Exception.Base

   A version of catchJust with the arguments swapped around (see handle).

6. tryJust :: Exception e => (e -> Maybe b) -> IO a -> IO (Either b a)

   base	Control.Exception.Base

   A variant of try that takes an exception predicate to select which exceptions are caught (c.f. catchJust). If the exception does not match the predicate, it is re-thrown.

7. data FormatAdjustment

   base	Text.Printf

   Whether to left-adjust or zero-pad a field. These are mutually exclusive, with LeftAdjust taking precedence.

8. LeftAdjust :: FormatAdjustment

   base	Text.Printf

   No documentation available.

9. fmtAdjust :: FieldFormat -> Maybe FormatAdjustment

   base	Text.Printf

   Kind of filling or padding to be done.

10. adjust :: (e -> a -> e) -> MutableArray# s e -> (Int, a) -> STRep s b -> STRep s b

    base	GHC.Arr

    No documentation available.

Page 25 of many | Previous | Next