Vec

Blog post applies 'Parse, don't validate' idiom to Rust code patterns

A developer's blog post examines the 'Parse, don't validate' programming pattern, originally described by Alexis King for Haskell, and translates it into Rust examples. The post uses a case study involving a configuration-directory reader that validates a vector is non-empty, then shows how callers must still handle an 'unreachable' None case despite the invariant already being checked.