Romeo: A system for more flexible binding-safe programming

Abstract

Abstract Current systems for safely manipulating values containing names only support simple binding structures for those names. As a result, few tools exist to safely manipulate code in those languages for which name problems are the most challenging. We address this problem with Romeo, a language that respects α-equivalence on its values, and which has access to a rich specification language for binding, inspired by attribute grammars. Our work has the complex-binding support of David Herman's λ m , but is a full-fledged binding-safe language like Pure FreshML.