Asynchronous Global Types in Co-logic Programming

Global types are at the core of communication based programming. They allow a high level specification of protocols involving many participants and enforce good safety and liveness properties, such as absence of deadlock, locked participants and orphan messages. In this paper, we describe an implementation of a novel formalism of global types for sessions with asynchronous communications in co-logic programming, where we use coinduction to properly handle the coinductive syntax of global types and processes. We also define a simple query language to write sessions and global types, providing primitives for type checking.