On Mar 2, 2010, at 8:47 PM, Henrik Sperre Johansen wrote: > On 02.03.2010 14:26, Stéphane Ducasse wrote: >> Hi guys >> >> We just released a new chapter for Pharo by Example Vol.2 on Exceptions >> http://pharobyexample.org/ >> >> Let us know what you think. >> >> Stef > On p4 there's an error, it says ensure: and ifCurtailed are implemented > as primitives, in fact they use the exact same implementation as > described of the exception handling in 15.1, the primitive is only used > as a marker, and the primitive is required to fail for them to work :)
Yes this is more precise > In addition, I'm not too sure what sense it makes to show how to > implement one with the other (nor that the implementations are actually > correct, f.ex. ifCurtailed: block does not trigger on non-local returns...) I would be curious to see if your code is working in GNU Smalltalk. > > Other than that, very nice chapter! > Especially liked 1.9 - 1.13, with the thorough explanation of the > different ways an exception can be returned from. > > Cheers, > Henry > > PS. For the not-so-faint-of-heart, open a Transcript and try evaluating: > |proc| > proc := [[Transcript show: 'Start!'. ] ensure: [Transcript show: > 'Finish!' Processor yield.]] newProcess. > proc resume. > Processor yield. > proc suspend. > proc terminate. > > _______________________________________________ > Pharo-project mailing list > Pharo-project@lists.gforge.inria.fr > http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project _______________________________________________ Pharo-project mailing list Pharo-project@lists.gforge.inria.fr http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project
