Re: [Haskell-cafe] Where is the documentation on exception types kept?
On 12-11-07 03:36 PM, timothyho...@seznam.cz wrote: I am trying to catch an thread blocked on MVar indefinitely exception. Of course I can use ::SomeException as explained in http://hackage.haskell.org/packages/archive/base/latest/doc/html/Control-Exception.html#g:3 but there is no explanation as to how to find the more case specific exceptions. In general, because Exception instances are Typeable instances, you can get a name, and then you can use that for searches. import Control.Exception import Data.Typeable main = do aida - try (readFile no) case aida of Left (SomeException e) - print (typeOf e) ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
Re: [Haskell-cafe] Where is the documentation on exception types kept?
Thanks! That is a neat way. At least for exceptions which I know to exists and know how to trigger ;) Tim -- Původní zpráva -- Od: Albert Y. C. Lai tre...@vex.net Datum: 7. 11. 2012 Předmět: Re: [Haskell-cafe] Where is the documentation on exception types kept? On 12-11-07 03:36 PM, timothyho...@seznam.cz wrote: I am trying to catch an thread blocked on MVar indefinitely exception. Of course I can use ::SomeException as explained in http://hackage.haskell.org/packages/archive/base/latest/doc/html/Control- Exception.html#g:3 (http://hackage.haskell.org/packages/archive/base/latest/doc/html/Control-Exception.html#g:3) but there is no explanation as to how to find the more case specific exceptions. In general, because Exception instances are Typeable instances, you can get a name, and then you can use that for searches. import Control.Exception import Data.Typeable main = do aida - try (readFile no) case aida of Left (SomeException e) - print (typeOf e) ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe (http://www.haskell.org/mailman/listinfo/haskell-cafe)___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
