{
  "$type": "site.standard.document",
  "bskyPostRef": {
    "cid": "bafyreih7iegp6y73cwp2wwk5wtejpoj7yq7kvmjh57b76mnzimljl3axgm",
    "uri": "at://did:plc:ivbknywyskln22er3nkssdhl/app.bsky.feed.post/3mkra5pf5x4o2"
  },
  "path": "/t/mutation-creation-of-hir/24214#post_2",
  "publishedAt": "2026-05-01T01:57:37.000Z",
  "site": "https://internals.rust-lang.org",
  "textContent": "The HIR is arena-allocated and immutable, with interior shared references. Mutating one thing requires cloning everything.",
  "title": "Mutation/Creation of HIR"
}