Benjamin Goldberg: # Concievably, we could then examine the exception, and maybe decide that # it was nonfatal, and resume execution from just after the place it was # thrown from.
The problem with that is that some exceptions are unresumable. For example, exceptions thrown in C code are difficult to resume from, especially if they represent e.g. a segfault. Exceptions that represent things like a file failing to open can be difficult to handle if they're thrown from an inner routine--you'd need to know where to put the replacement filehandle.
Exactly. Resumable exceptions should be under the control of the code throwing the exception, in which case it can stick a resume continuation object into the exception it throws.
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Dan
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Dan Sugalski even samurai
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