explicit-exception-0.1.9.2: Exceptions which are explicit in the type signature.
Synchronous and Asynchronous exceptions which are explicit in the type signature.
The first ones are very similar to Either
and ErrorT
.
The second ones are used for readFile
and hGetContents
.
This package is a proposal for improved exception handling in Haskell.
It strictly separates between handling of
exceptional situations (file not found, invalid user input,
see http://www.haskell.org/haskellwiki/Exception) and
(programming) errors (division by zero, index out of range,
see http://www.haskell.org/haskellwiki/Error).
Handling of the first one is called "exception handling",
whereas handling of errors is better known as "debugging".
For applications see the packages midi
, spreadsheet
, http-monad
.
Although I'm not happy with the identifier style of the Monad Transformer Library (partially intended for unqualified use) I have tried to adopt it for this library, in order to let Haskell programmers get accustomed easily to it.
See also: unexceptionalio
Signatures