On Mon, Aug 19, 2013 at 2:59 PM, <jabolo...@google.com> wrote: > I'd say that if you were in the context of the IO monad, maybe you'd > prefer to use exceptions instead of 'Either' or 'Maybe'. >
Even in IO, exceptions should be reserved for truly exceptional conditions (of the "program cannot safely continue" variety), not merely for error checking when this can be described as a normal flow of evaluation. Exceptions are not simply alternative flow of control, even in procedural languages; they are *disruptions* of flow of control. -- brandon s allbery kf8nh sine nomine associates allber...@gmail.com ballb...@sinenomine.net unix, openafs, kerberos, infrastructure, xmonad http://sinenomine.net
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