{
  "$type": "site.standard.document",
  "bskyPostRef": {
    "cid": "bafyreibvyiychlmjgdoq7ix4qtbpqgykgdzpvaswka2idklzen5f2zkcgu",
    "uri": "at://did:plc:ivbknywyskln22er3nkssdhl/app.bsky.feed.post/3mo5776ebuf42"
  },
  "path": "/t/why-cant-pat-param-be-followed-by-a-colon-in-macro-rules/24394#post_2",
  "publishedAt": "2026-06-13T00:58:44.000Z",
  "site": "https://internals.rust-lang.org",
  "textContent": "Given that `pat_param` is in parameters (duh) which are followed by `:` always, this seems at least plausible? I don't think we'd want to do it for `pat` in general, but for `pat_param` maybe?",
  "title": "Why can't pat_param be followed by a colon in macro_rules?"
}