Looking at the bytecode, the JIT handles it fine. atomo pattern matching is the equivalent of using a case;when in the body. And because it's scoped to a certai

Looking at the bytecode, the JIT handles it fine. atomo pattern matching is the equivalent of using a case;when in the body. And because it's scoped to a certain class and name, I doubt it would have the overflow problem that lisp multimethods have, where you only have the name to bind functionality to.