{
  "$type": "site.standard.document",
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    "uri": "at://did:plc:ivbknywyskln22er3nkssdhl/app.bsky.feed.post/3mj5ed7abq4i2"
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  "path": "/t/change-error-message-of-a-failing-assert-eq/24118?page=2#post_32",
  "publishedAt": "2026-04-10T06:42:03.000Z",
  "site": "https://internals.rust-lang.org",
  "tags": [
    "already get printed today"
  ],
  "textContent": "CodesInChaos:\n\n> It's not clear if `XXX`/`YYY` in your post is supposed to be the value of the argument or its name. But since you invoked it without specifying a name, I assumed that it's supposed to be the debug representation of the value.\n>\n> What are `XXX` supposed to be?\n\nThey are indeed the debug representation of the arguments. Those already get printed today. The macro _already_ requires the types of the arguments to implement `Debug`. The only thing that's new in their proposal is the part before, the \"assert some_object.array[i] == Some(\"foo\") failed\" part.\n\nPlease check your assumptions before making claims.",
  "title": "Change error message of a failing `assert_eq!`"
}