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15: Classes and Metaclasses

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    As we saw in preceding chapters, in Pharo, everything is an object, and every object is an instance of a class. Classes are no exception: classes are objects, and class objects are instances of other classes. This object model captures the essence of object-oriented programming, and is lean, simple, elegant and uniform. However, the implications of this uniformity may confuse newcomers.

    Note that you do not need to fully understand the implications of this uniformity to program fluently in Pharo. Nevertheless, the goal of this chapter is twofold: (1) go as deep as possible and (2) show that there is nothing complex, magic or special here: just simple rules applied uniformly. By following these rules you can always understand why the situation is the way that it is.

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