WIP: Middleware

The Valence Middleware is a set of components that provide a unified interface for the Valence Type system.

At its core, middleware is made up from the following components.

Design goals

TODO: describe modifiable middleware, design goals and philosophy behind it

These means are achieved with three key components:

• brokers
• type registries
• Valence types

Middleware Brokers

Middleware brokers are responsible for managing the lifecycle of middleware instances and their associated types.

Middleware Type Registries

Middleware Type Registries are responsible for unifying a set of foreign types to be used in Valence Programs.

Valence Types

Valence Types are the canonical representations of various external domain implementations of some types.

Valence Asserter

Valence Asserter enables Valence Programs to assert specific predicates during runtime. This is useful for programs that wish to enable conditional execution of a given function as long as some predicate evaluates to true.