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POCan Scala be seen as an 'Abstraction Inversion'?
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  1. POCan Scala be seen as an 'Abstraction Inversion'?
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    copied!<p>Greetings,</p> <p>It's a provocative question, aiming to open debate about how abstraction inversion are seen among developer community. I'm really curious to know what you think.</p> <p>First, here is a quote from the abstraction inversion exemples given by Wikipedia: <a href="http://en.wikipedia.org/wiki/Abstraction_inversion" rel="nofollow">http://en.wikipedia.org/wiki/Abstraction_inversion</a></p> <blockquote> <p>Creating an object to represent a function is cumbersome in object-oriented languages such as Java and C++, in which functions are not first-class objects. In C++ it is possible to make an object 'callable' by overloading the () operator, but it is still often necessary to implement a new class, such as the Functors in the STL.</p> </blockquote> <p>For me functions are first-class citizen in Scala, but when we use Scala to generate Java bytecode, Scala create specific class 'on top' of Java to make functional programming possible... <strong>can we see this as an abstraction inversion ?</strong></p> <p>Same can apply to Clojure or any functionnal language for the JVM... or even Apache Collections, for exemple this:</p> <p><a href="http://commons.apache.org/collections/apidocs/org/apache/commons/collections/Closure.html" rel="nofollow">http://commons.apache.org/collections/apidocs/org/apache/commons/collections/Closure.html</a></p> <hr> <p>BTW, I'm not convinced about the wikipedia article objectivity. For example when speaking about possible abstraction inversion in micro-kernel the article say <em>'A body of opinion holds the microkernel design to be an abstraction inversion'</em> but no such statement for functional type in OOP</p>
 

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