GOOL: a generic object-oriented language

Abstract

We present GOOL, a Generic Object-Oriented Language. It demonstrates that a language, with the right abstractions, can capture the essence of object-oriented programs. We show how GOOL programs can be used to generate humanreadable, documented and idiomatic source code in multiple languages. Moreover, in GOOL, it is possible to express common programming idioms and patterns, from simple library-level functions, to simple tasks (command-line arguments, list processing, printing), to more complex patterns, such as methods with a mixture of input, output and in-out parameters, and finally Design Patterns (such as Observer, State and Strategy). GOOL is an embedded DSL in Haskell that can generate code in Python, Java, C#, and C++.