QuB: A Resource Aware Functional Programming Language

Managing resourcesfile handles, database connections, etc.is a hard problem. Debugging resource leaks and runtime errors due to resource mismanagement are difficult in evolving production code. Programming languages with static type systems are great tools to ensure erroneous code is detected at compile time. However, modern static type systems do little in the aspect of resource management as resources are treated as normal values. We propose a type system, Qub, based on the logic of bunched implications (BI) which models resources as first class citizens. We distinguish two kinds of program objectsrestricted and unrestrictedand two kinds of functionssharing and separating. Our approach guarantees resource correctness without compromising existing functional abstractions.