{
  "$type": "site.standard.document",
  "bskyPostRef": {
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  "path": "/t/could-you-borrow-a-bit/24300#post_1",
  "publishedAt": "2026-05-15T00:24:23.000Z",
  "site": "https://internals.rust-lang.org",
  "textContent": "Could there be a `&mut self` method on e.g. core `u*` integers that lets you borrow a bit as `&mut bool`, or does the layout of `&bool` prevent that, and if so could there be some other way to achieve a similar effect? (possibly introducing a new type like `bit` and returning `&mut bit`)\n\nIf you're curious about my use case, I'm trying to implement the `IndexMut` trait on a bitstring reference type.",
  "title": "Could you borrow a bit?"
}