On 12/1/25 2:50 PM, Miguel Ojeda wrote: > On Mon, Dec 1, 2025 at 11:18 PM John Hubbard <[email protected]> wrote: >> >> But for API developers, the problem with doctests is that no one has ever >> actually *run* the code. It's just a build test. And so critical bugs, such >> as the kernel crash/hang below, are missed. > > No, it is not just a build test. Doctests are actually transformed > into KUnit tests automatically, and `assert!`s inside them actually > report back to KUnit too.
I somehow failed to really internalize the connection to KUnit (or to even remember it). Joel pointed it out too. > > It was a major hack to implement, but I am proud of that one :) > > That also allows us to build them with Clippy, to e.g. get the safety > comments right, which is something normal Rust doesn't support yet. > > We are actually getting a feature from upstream Rust to support it all > in a stable and nice way! > thanks, -- John Hubbard
