Celebes Kalossi 2.0

I've decided it's time to post about my object-oriented programming model, Celebes Kalossi, again. All previous statements are inoperative, so you don't have to look back at my earlier postings. This posting will be mostly about terminology.

In CK, there are classes. A class contains declarations of state variables (aka instance variables, fields, data members) and both declarations and definitions of methods. State variables are only accessible from within the class: they are all private in Java terminology.

A declaration of a method specifies the method's name and its signature; that is, the type of its return value and the names and types of its arguments. In the model, no two methods in a class can have the same name; an actual implementation might provide Java-style method overriding, since overriding is resolved at compile time and is basically convenient syntactic sugar.

A definition of a method specifies everything the corresponding declaration does, but also includes the code of the method. If a class contains a definition of a method, it has no need to contain its declaration too.

A method may be public, private, or neither; the third type will be called standard methods here. A public method can be called from anywhere, and can be invoked on any object. A private method cannot be invoked outside the class in which it is defined, so there is no point in declaring one. Basically, it's just a subroutine. The difference between standard and private methods will be explained in another posting.

Standard and private methods can only be invoked on the self (this in Java) object, implicitly or explicitly. The most important rule of CK is that you cannot invoke a method on self that is not declared (not necessarily defined) in the current class.

Finally, by "Java" I mean "Java or C#". More later.

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