bjoernager/rust
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subtyping_projections

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This commit is contained in:
ouz-a 2023-08-16 08:43:30 +03:00
parent 177091258c
commit 3148e6a993
28 changed files with 431 additions and 5 deletions
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1
compiler/rustc_mir_dataflow/src/move_paths/abs_domain.rs
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@ -57,6 +57,7 @@ impl<'tcx> Lift for PlaceElem<'tcx> {
ProjectionElem::ConstantIndex { offset, min_length, from_end }
}
ProjectionElem::Downcast(a, u) => ProjectionElem::Downcast(a, u),
ProjectionElem::Subtype(ty) => ProjectionElem::Subtype(ty.lift()),
}
}
}

3
compiler/rustc_mir_dataflow/src/move_paths/builder.rs
View file

@ -112,6 +112,9 @@ impl<'b, 'a, 'tcx> Gatherer<'b, 'a, 'tcx> {
let mut union_path = None;
for (place_ref, elem) in data.rev_lookup.un_derefer.iter_projections(place.as_ref()) {
if elem.is_subtype() {
continue;
}
let body = self.builder.body;
let tcx = self.builder.tcx;
let place_ty = place_ref.ty(body, tcx).ty;