On Thu, Oct 1, 2009 at 3:54 PM, Stéphane Ducasse <[email protected]>wrote:
> > On Oct 1, 2009, at 8:02 PM, Mariano Martinez Peck wrote: > > > Hi folks: First of all I have to say I am pretty sad that error > > handling hasn't a special place in the PBE. In my opinion having a > > good error handling is a MUST in every piece of code. We need to use > > exceptions. I didn't collaborate at all with PBE so I cannot say > > anything to no one :) I will try to write something for the next > > version if you want. But first... > > > there is a chapter for the volume two. It is already written and was > rewritten we will release it in the future for making the unpatient > happy. > excellent > > > We need a better error handling. It is very common to have a > > hierarchy of exceptions or errors. You have subclasses of Error for > > example. And many times, you want to do or not to do or even do > > something different depending on the error you got. Now, the > > question is, how you do this in Squeak ??? > > > have a look at the Exceptions test because they encode the rich > exception mechanism of Smalltalk. > Ok, I will do that then. > I could send the exception chapter too :) > please do!!! > > > > > This is the only (ugly) way I find to do it: > > > > [ a block of code where you do something that can singal different > > exceptions ] > > on: XXXErrror do: [ : ex | ex class = XXXError if True: [ 'I > > do what I need to do when I get the error XXX' ]. > > ex class = YYYError if > > True: [ 'I do what I need to do when I get the error YYY' ]. > > 'here I do in the rest of > > the cases' > > ] > > > > > > But, I would like to have something like this: > > > > > > [ a block of code where you do something that can singal different > > exceptions ] > > on: XXXError > > do: [ : ex | 'I do what I need to do when I get the error > > XXX' ] > > on: YYYError > > do: [ : ex | 'I do what I need to do when I get the error > > YYY' ] > > on: Error > > do: [ : ex | 'here I do in the rest of the cases' ] > > ensure: [ 'Here I do what I always need to do, no matter if > > there is an error or not' ] > > > > > > What do you think about this? does someone ever did something like > > this ? perhaps we can put this as part of 1.1 > > > > I listen opinions. > > > > Best, > > > > Mariano > > _______________________________________________ > > Pharo-project mailing list > > [email protected] > > http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project > > > _______________________________________________ > Pharo-project mailing list > [email protected] > http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project >
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