The paper "Mixing Source and Bytecode. A Case for Compilation by Normalization" by Lennart Kats, Martin Bravenboer, and Eelco Visser has been accepted for presentation at the 23rd ACM SIGPLAN Conference on Object-Oriented Programing, Systems, Languages, and Applications (OOPSLA 2008) to be held in Nashville, Tenessee, USA in October 2008. (Preprint will be available soon.)
The paper is based on the master's thesis work of Lennart Kats.
Abstract: Language extensions increase programmer productivity by providing concise, often domain-specific syntax, and support for static verification of correctness, security, and style constraints. Language extensions can often be realized through translation to the base language, supported by preprocessors and extensible compilers. However, various kinds of extensions require further adaptation of a base compiler's internal stages and components, for example to support separate compilation or to make use of low-level primitives of the platform (e.g., jump instructions or unbalanced synchronization). To allow for a more loosely coupled approach, we propose an open compiler model based on normalization steps from a high-level language to a subset of it, the core language. We developed such a compiler for a mixed Java and (core) bytecode language, and evaluate its effectiveness for composition mechanisms such as traits, as well as statement-level and expression-level language extensions.