Sorbet: Stripe’s type checker for Ruby

By 2017, Stripe had grown to the point where hundreds of engineers had written millions of lines of code. Most of that code was—and still is—written in Ruby, which is famous for helping engineers iterate quickly (if somewhat notorious for encouraging inscrutable code). Unfortunately we were starting to see Ruby come apart at the seams: new engineers found it hard to learn the codebase, and existin

[ohbarye]

Sorbetの現状 in Stripe。85%のsigilはstrict、95%はtrue。生産性向上だけでなく「public interfaceには最新のdocumentationを持たせるべき」といったエンジニアの文化規範の形成にも意図せず寄与した、というのは面白い