by Lorenzo Schiavina EDOR Metodi Quantitativi When I was a professor of Operation Research at the Faculty of Mathematics at the Catholic University of Brescia, I was lucky enough to contact Lofti Zadeh who was going to develop fuzzy logic and I was impressed by his work. Subsequently I deepened the topic by reading the…

by Leandro Caniglia President of FAST (Fundación Argentina de Smalltalk) Story 4: Hybrid Compilation Have you ever heard of the idea the creators of Smalltalk had for allowing any class to choose its compiler? To provide support for this classes respond to the #compiler message before the actual compilation is attempted. Why then, this capability hasn’t been…

by Leandro Caniglia President of FAST (Fundación Argentina de Smalltalk) Story 3: Tagged Nodes What do you do when you have to include JSON in a Smalltalk method? Something like this? In other words, do you represent JSON data with plain strings? Wouldn’t it be nice to improve this? What if the compiler knew that this String…

by Leandro Caniglia President of FAST (Fundación Argentina de Smalltalk) Story 2: Supporting Pragmas All Smalltalk dialects support pragmas. Here is one: However, not all of them support other types of pragmas, as Pharo does. So, let’s see what it would take to add support for them to our dialect. Where to start? Here is the roadmap:…

by Leandro Caniglia President of FAST (Fundación Argentina de Smalltalk) Story 1: Adding Squeak Braces Does your dialect support Squeak Braces? To answer this question, try to evaluate the following expression: If you get an Array with the above two elements, today’s date and 7, it does. Otherwise, you would get a compilation error. In the…