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Re: What happens when no handler is found?
- To: email@example.com, firstname.lastname@example.org, email@example.com, firstname.lastname@example.org
- Subject: Re: What happens when no handler is found?
- From: email@example.com
- Date: 6 Jan 1986 21:55-CST
Okay, you've convinced me that programs might very often signal
conditions without handlers; often enough that it ought to be
simple to do. Nevertheless, I still think there is a class of
conditions (perhaps exemplified by EOF) where
1. It is a programmer error if there is no handler.
2. It's inelegant to consider the condition a subtype of ERROR.
3. A missing handler is better reported as MISSING-HANDLER
than ERROR: EOF.
Of course, it's simple enough to make a subtype of CONDITION
called MUST-BE-HANDLED-CONDITION and a global handler for it
that signals the programmer error. Should that condition and
its handler be part of the standard?