An object model refers to the semantics of key features of the objects in a language. These include, for example, the behavior of polymorphism, inheritance, and method dispatch.
Included in this package is a couple of very simple object models
implemented in C, for use in C. Though writing programs with these
would likely be tedious, they are typically intended to be the target
of a higher-level language. In this case, they are mainly
instructional. I omitted many features (see the challenges
throughout) in favor of simplicity.
The object models are:
-
oo.h: A simple, Java-like model including single inheritance, dispatching tosuper, and proper polymorphism. Though much of the code is there, safe casts are not yet supported. -
proto.h: prototype-based object model similar to the one in javascript. This is most common in dynamically typed language that employ "duck-typing". For simplicity, all fields are indexed by their name (i.e. a string), and expanding this to be more efficient is left as a simple to accomplish, but hard to figure out how to implement challenge.
Simple tests with comments comparing to comparable Java and Javascript programs are included.
The Makefile is pretty naive.