bjoernager/rust
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use PlaceRef abstractions more consistently

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This commit is contained in:
Eric Mark Martin 2023-06-25 20:38:01 -04:00
parent 0c2c243342
commit c07c10d1e4
10 changed files with 40 additions and 93 deletions
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19
compiler/rustc_mir_dataflow/src/move_paths/builder.rs
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@ -113,22 +113,16 @@ impl<'b, 'a, 'tcx> Gatherer<'b, 'a, 'tcx> {
// from `*(u.f: &_)` isn't allowed.
let mut union_path = None;
for (i, elem) in place.projection.iter().enumerate() {
let proj_base = &place.projection[..i];
for (place_ref, elem) in place.as_ref().iter_projections() {
let body = self.builder.body;
let tcx = self.builder.tcx;
let place_ty = Place::ty_from(place.local, proj_base, body, tcx).ty;
let place_ty = place_ref.ty(body, tcx).ty;
match place_ty.kind() {
ty::Ref(..) | ty::RawPtr(..) => {
let proj = &place.projection[..i + 1];
return Err(MoveError::cannot_move_out_of(
self.loc,
BorrowedContent {
target_place: Place {
local: place.local,
projection: tcx.mk_place_elems(proj),
},
},
BorrowedContent { target_place: place_ref.project_deeper(&[elem], tcx) },
));
}
ty::Adt(adt, _) if adt.has_dtor(tcx) && !adt.is_box() => {
@ -163,10 +157,7 @@ impl<'b, 'a, 'tcx> Gatherer<'b, 'a, 'tcx> {
};
if union_path.is_none() {
base = self.add_move_path(base, elem, |tcx| Place {
local: place.local,
projection: tcx.mk_place_elems(&place.projection[..i + 1]),
});
base = self.add_move_path(base, elem, |tcx| place_ref.project_deeper(&[elem], tcx));
}
}