Cecil Object-Oriented Language
Cecil is an object-oriented language intended for both exploratory and production programming. Cecil is based on a pure object model. All data are objects, and objects are manipulated soley by passing messages. Cecil uses a classless (prototype-based) object model, in which (conceptually) self-sufficient objects implement data abstractions, and objects inherit directly from other objects (delegation) to share code. Cecil also supports a general form of dynamic binding based on multiple dispatching.