A JastAdd implementation of Oberon-0

• We implemented an Oberon-0 compiler using reference attribute grammars in JastAdd.
• The work is part of a tool challenge aiming at comparing compiler construction tools.
• Oberon-0 is a small procedural language illustrating typical compilation problems.
• We could modularize the compiler according to the artifacts defined in the challenge.
• We demonstrate best practices for compiler development using JastAdd.

As a part of the LDTA 2011 Tool Challenge, we implemented a compiler for the language Oberon-0 using the metacompilation tool JastAdd. In this paper, we report on this implementation, and reflect on aspects of it such as ease of use, modularity, and safety.