{
  "$type": "site.standard.document",
  "bskyPostRef": {
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    "uri": "at://did:plc:ivbknywyskln22er3nkssdhl/app.bsky.feed.post/3mnqiitju3yi2"
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  "path": "/t/for-structs-that-have-fields-that-have-only-one-possible-representation-enums-should-use-that-field-as-the-discriminant/24382#post_3",
  "publishedAt": "2026-06-07T23:34:02.000Z",
  "site": "https://internals.rust-lang.org",
  "textContent": "Actually, now I see your case is even simpler: you don't have padding bytes, you want to use extra _bits_ and not bytes. This is impossible for a similar reasoning, though: some code may take `&mut FooDiscriminant` and write to it, or read from it and expect it to be one of the variants.",
  "title": "For structs that have fields that have only one possible representation, enums should use that field as the discriminant"
}