Rici Lake wrote: [...] > This is also considered a strength of Smalltalk / Squeak and > Objective-C, as I understand it. Yes, this dates back from Smalltalk-80 and before. Reasoning: - make a subclass on Number called Distance. You can now make a Distance object representing five metres with 'Distance new: 5'. - add a method to Number, 'metres', that calls 'Distance new: n'. - add a method to Number, 'feet', that calls 'Distance new: (n * 0.304.8)'. You may now say '5 metres' or '18 feet' to construct Distance objects. Natural and intuitive. (There's a namespace mechanism in place to prevent namespace pollution.) I find it rather amusing that practically every shiny new language feature that are in fashion today were, in fact, done 27 years ago by Smalltalk-80. People don't learn from history... -- ┌── ｄｇ＠ｃｏｗｌａｒｋ．ｃｏｍ ─── http://www.cowlark.com ───────────────────── │ "Is Eris true?" "Everthing is true." "Even false things?" "Even false │ things are true." "How can that be?" "I don't know, man. I didn't do it!" │ --- _Prinicipa Discordia_
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