BellFrame

BellFrame is a library of human friendly data types for concepts which are ubiquitous in change ringing (e.g. Bell, Row, Stage, Method, etc.). The aim is to provide a simple library for with fast and correct implementations of common operations, rather than providing utilities for every use case.

All data types are written so that undefined behaviour is impossible without using unsafe. However, unsafe versions of most functions are provided for cases where the required invariants are upheld but can't be verified by the compiler.

I am currently using this in several Rust projects, and the API is very nascent and may change radically between minor version numbers until 1.0 (e.g. 0.1.0 to 0.2.0 will likely be a breaking change).