Retrofitting Typestates into Rust
José Duarte, António Ravara · 2021
As software permeates our lives, bugs become increasingly expensive; the best way to reduce their cost is to reduce the number of bugs. Of course, this is easier said than done and, at best, we can go after their root causes to mitigate them. One of such causes is state, whether it is the state of a light bulb (i.e. on/off), or the state of a complex protocol, reasoning about state is a complex process which developers are required to do with subpar tools.