{
  "$type": "site.standard.document",
  "bskyPostRef": {
    "cid": "bafyreib3tpzbal5gmdo5eiunuuwmh257fnzjbq7p4te3mlw6bsypodcw4a",
    "uri": "at://did:plc:ivbknywyskln22er3nkssdhl/app.bsky.feed.post/3mnjowo7535m2"
  },
  "path": "/t/make-derive-copy-enough-for-both-clone-and-copy/24371#post_7",
  "publishedAt": "2026-06-05T07:32:09.000Z",
  "site": "https://internals.rust-lang.org",
  "textContent": "If you scan the whole crate, no, but macros cannot do that currently (not even built-in macros), this will be a big change, hurt performance and incrementality, and something that rust-analyzer cannot implement (and as a member of T-rust-analyzer makes me feel deeply uneasy).",
  "title": "Make `#[derive(Copy)]` enough for both `Clone` and `Copy`"
}