Some fixes to diagnostics and lints#18417
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I think this would be better expressed as a match:
let is_sized = match fcx.ccx.tcx.lang_item.sized_trait() {
Some(sized_id) => sized_id == trait_ref.def_id,
None => false
};Or if you feel more adventurous:
let is_sized = fcx.ccx.tcx.lang_items.sized_trait()
.map_or(false, |sized_id| sized_id == trait_ref.def_id);…nt group These lints are allow by default because they are sometimes too sensitive.
The error messages still aren’t as good as they were before DST, but they better describe the actual problem, not mentioning `Sized` at all (because that bound is normally implied, not explicitly stated). Closes rust-lang#17567. Closes rust-lang#18040. Closes rust-lang#18159.
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fix: Correctly handle `#""` in edition <2024
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I’m not so sure about the way I’ve handled #17567, but at least the error message is an improvement over what it was before (albeit still not quite as good as it was before DST).