Re: [Haskell-cafe] how to catch keyboard interrupts?

Thanks, I'll try that. -- Uwe On 2/24/08, Ryan Ingram wrote:

This is pretty cool, but I have one warning:

On Sat, Feb 23, 2008 at 4:37 PM, Uwe Hollerbach wrote:

...

...

data MyInterrupt = MyInt Int instance Typeable MyInterrupt where typeOf x = typeOf (0 :: Int)

I am pretty sure that this makes Dynamic unsound; you could accidentally cast from an Int to a MyInterrupt or vice versa. Try this instead:

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data MyException = Interrupt deriving Typeable

then you can safely use throwDyn and catchDyn on this type.

-- ryan