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Qualifying arguments in SKILL++ methods, do not accept children.

LDIL

Hello all.

Let's say that I define a method.

The method does have the ability to qualify the arguments' class, when defining the argument.

However, any child of the class would pass too.

Is there a way, in the definition of the arguments, to qualify just the class, and not its' children?

Thanks.

  • My first question would be "why?". This completely breaks the basics of object oriented programming - the point is that a child of a class is still an object of its parent class, and if you really don't want the method for the parent class to be invoked, you define a more-specific method for the child class directly.

    There is a (rather complicated) way of achieving this, but it's probably clearer to just put a check in the method which does (equal (className (classOf obj)) 'MyClass). I don't think that's a good idea either, because it still breaks the point of inheritance in OOP.

    Andrew.

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