ABSTRACT

The TILT compiler for Standard ML is type-directed and type-preserving, that is, it makes use of and translates type information during the phases of compilation. Unfortunately, such use of type data incurs a significant overhead. This paper explores methods for abstractly, conveniently, and efficiently storing and manipulating type information in TILT. In the end, we discover that doing /more/ work to reduce overhead is a bad strategy for this situation.