Hoogle Search

Within LTS Haskell 24.39 (ghc-9.10.3)

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

Exact lookup

1. tryBool :: Exception e => (e -> Bool) -> IO a -> IO (Either e a)

   extra	Control.Exception.Extra

   Like catchBool but for try.

2. catchBool :: Exception e => (e -> Bool) -> IO a -> (e -> IO a) -> IO a

   extra	Extra

   Catch an exception if the predicate passes, then call the handler with the original exception. As an example:

   readFileExists x == catchBool isDoesNotExistError (readFile "myfile") (const $ pure "")
   

3. handleBool :: Exception e => (e -> Bool) -> (e -> IO a) -> IO a -> IO a

   extra	Extra

   Like catchBool but for handle.

4. retryBool :: Exception e => (e -> Bool) -> Int -> IO a -> IO a

   extra	Extra

   Retry an operation at most n times (n must be positive), while the exception value and type match a predicate. If the operation fails the nth time it will throw that final exception.

5. tryBool :: Exception e => (e -> Bool) -> IO a -> IO (Either e a)

   extra	Extra

   Like catchBool but for try.

6. data SBool (b :: Bool)

   servant	Servant.API

   No documentation available.

7. class SBoolI (b :: Bool)

   servant	Servant.API

   No documentation available.

8. sbool :: SBoolI b => SBool b

   servant	Servant.API

   No documentation available.

9. withBool :: String -> (Bool -> Parser a) -> Value -> Parser a

   yaml	Data.Yaml

   withBool expected f value applies f to the Bool when value is a Boolean and fails otherwise.

   Error message example

   withBool "MyType" f (String "oops")
   -- Error: "parsing MyType failed, expected Boolean, but encountered String"
   

10. maybeNamedBool :: Maybe Text -> Bool -> YamlBuilder

    yaml	Data.Yaml.Builder

    No documentation available.

Page 75 of many | Previous | Next