Ruby rescue all exceptions except MyException

Question

In Ruby, is it possible to rescue all exceptions except for a specified one?

Ken Bloom · Accepted Answer · 2011-01-25 22:23:12Z

55

begin rescue MyException raise #to reraise the same exception without changing it rescue Exception => e #do something with e end

answered Jan 25, 2011 at 17:11

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Comments

sepp2k · Accepted Answer · 2011-01-25 17:08:35Z

12

Not as such no. But you can rescue all exceptions and reraise the exception if it is a MyException.

answered Jan 25, 2011 at 17:08

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You're not supposed to rescue all exceptions: stackoverflow.com/questions/10048173/…

@WillSheppard I would argue that this depends entirely on what your code is doing.

Andrew Grimm · Accepted Answer · 2011-01-26 22:21:34Z

Without knowing more about your problem, I'd suggest Ken Bloom's answer.

However, I'd like to know more about why you're doing it.

Are you worried about a really severe exception, and not wanting to rescue that one, but allow less severe exceptions to be rescued?

In that case, I'd make my custom exception inherit from Exception rather than StandardError and then have

begin do_risky_stuff rescue # Not rescue Exception handle_less_serious_stuff end