Rusty thoughts on 'Parse, don't validate'

Rusty thoughts on "Parse, don't validate"

Eli Bendersky revisits the 'Parse, don't validate' pattern in Rust. The key idea: use types like NonEmpty to enforce invariants at compile time, so you never need to re-check emptiness at runtime. Examples from POSIX utilities and rust-analyzer's AbsPathBuf show how to turn validation into parsing. The post doesn't discuss performance numbers or community debates.