Yes I know this article. For the book I was trying to get an example that I can just add as an extension of a previous exercise. And I like it.
On Tue, Aug 29, 2017 at 9:33 PM, Yves Lenfant <lenfan...@wanadoo.fr> wrote: > I start understanding better, I found this topic in the SmalltalkWithStyle > book p. 107 > This technic was explained by Dan Ingalls in > [Ingalls 86] Ingalls, D. A Simple Technique for Handling Multiple > Polymorphism. > 347-349, Proceedings of OOPSLA '86, Portland, Or., ACM SIGPLAN 21(11). > 1986 > That you can find here: > https://pdfs.semanticscholar.org/4924/ecc75d2a30120a088740c53594065cae67ee.pdf > > But about the Number class I need to understand the context deeper before > understanding completely! > > Yves > > > > -- > View this message in context: > http://forum.world.st/new-chapter-on-double-dispatch-for-new-book-tp4963645p4965510.html > Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com. >