[gambit-list] finally blocks

Guillaume Cartier gcartier at jazzscheme.org
Sun Jan 28 12:34:26 EST 2007


What you're looking for is called dynamic-wind. It is even more generic 
than Java's try/catch/finally idiom and surprisingly it is not even a 
special form but a simple plain function.

Phil Dawes wrote:
> Hi Gambit List,
>
> I'd like to have some functionality in gambit similar to 'finally' 
> blocks in java/python where a block of code is always executed 
> regardless of any exceptions thrown.
>
> I'm currently using an exception handler that catches the exception and 
> re-raises it after doing the cleanup stuff, but this loses the original 
> 'where the exception was raised from' metadata. Is there a better way?
> (or a better idiom for resource cleanup that I should be using?)
>
> Thanks,
>
> Phil
>
>
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