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Allow const patterns of matches to contain pattern types

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This commit is contained in:
Oli Scherer 2025-01-24 15:57:13 +00:00
parent b9856b6e40
commit 7ad16974b9
9 changed files with 233 additions and 9 deletions
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14
compiler/rustc_borrowck/src/type_check/mod.rs
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@ -1568,11 +1568,15 @@ impl<'a, 'tcx> Visitor<'tcx> for TypeChecker<'a, 'tcx> {
}
}
CastKind::Transmute => {
span_mirbug!(
self,
rvalue,
"Unexpected CastKind::Transmute, which is not permitted in Analysis MIR",
);
let ty_from = op.ty(self.body, tcx);
match ty_from.kind() {
ty::Pat(base, _) if base == ty => {}
_ => span_mirbug!(
self,
rvalue,
"Unexpected CastKind::Transmute {ty_from:?} -> {ty:?}, which is not permitted in Analysis MIR",
),
}
}
}
}