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Auto merge of #112693 - ericmarkmartin:use-more-placeref, r=spastorino

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Use PlaceRef abstractions more often

Associated issue: https://github.com/rust-lang/rust/issues/80647

r? `@spastorino`
This commit is contained in:
bors 2023-06-27 00:34:49 +00:00
commit b9ad9b78a2
10 changed files with 40 additions and 93 deletions
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16
compiler/rustc_const_eval/src/transform/check_consts/check.rs
View file

@ -612,30 +612,28 @@ impl<'tcx> Visitor<'tcx> for Checker<'_, 'tcx> {
}
fn visit_projection_elem(
&mut self,
place_local: Local,
proj_base: &[PlaceElem<'tcx>],
place_ref: PlaceRef<'tcx>,
elem: PlaceElem<'tcx>,
context: PlaceContext,
location: Location,
) {
trace!(
"visit_projection_elem: place_local={:?} proj_base={:?} elem={:?} \
"visit_projection_elem: place_ref={:?} elem={:?} \
context={:?} location={:?}",
place_local,
proj_base,
place_ref,
elem,
context,
location,
);
self.super_projection_elem(place_local, proj_base, elem, context, location);
self.super_projection_elem(place_ref, elem, context, location);
match elem {
ProjectionElem::Deref => {
let base_ty = Place::ty_from(place_local, proj_base, self.body, self.tcx).ty;
let base_ty = place_ref.ty(self.body, self.tcx).ty;
if base_ty.is_unsafe_ptr() {
if proj_base.is_empty() {
let decl = &self.body.local_decls[place_local];
if place_ref.projection.is_empty() {
let decl = &self.body.local_decls[place_ref.local];
if let LocalInfo::StaticRef { def_id, .. } = *decl.local_info() {
let span = decl.source_info.span;
self.check_static(def_id, span);

12
compiler/rustc_const_eval/src/transform/validate.rs
View file

@ -318,8 +318,7 @@ impl<'a, 'tcx> Visitor<'tcx> for TypeChecker<'a, 'tcx> {
fn visit_projection_elem(
&mut self,
local: Local,
proj_base: &[PlaceElem<'tcx>],
place_ref: PlaceRef<'tcx>,
elem: PlaceElem<'tcx>,
context: PlaceContext,
location: Location,
@ -334,7 +333,7 @@ impl<'a, 'tcx> Visitor<'tcx> for TypeChecker<'a, 'tcx> {
ProjectionElem::Deref
if self.mir_phase >= MirPhase::Runtime(RuntimePhase::PostCleanup) =>
{
let base_ty = Place::ty_from(local, proj_base, &self.body.local_decls, self.tcx).ty;
let base_ty = place_ref.ty(&self.body.local_decls, self.tcx).ty;
if base_ty.is_box() {
self.fail(
@ -344,8 +343,7 @@ impl<'a, 'tcx> Visitor<'tcx> for TypeChecker<'a, 'tcx> {
}
}
ProjectionElem::Field(f, ty) => {
let parent = Place { local, projection: self.tcx.mk_place_elems(proj_base) };
let parent_ty = parent.ty(&self.body.local_decls, self.tcx);
let parent_ty = place_ref.ty(&self.body.local_decls, self.tcx);
let fail_out_of_bounds = |this: &Self, location| {
this.fail(location, format!("Out of bounds field {:?} for {:?}", f, parent_ty));
};
@ -355,7 +353,7 @@ impl<'a, 'tcx> Visitor<'tcx> for TypeChecker<'a, 'tcx> {
location,
format!(
"Field projection `{:?}.{:?}` specified type `{:?}`, but actual type is `{:?}`",
parent, f, ty, f_ty
place_ref, f, ty, f_ty
)
)
}
@ -434,7 +432,7 @@ impl<'a, 'tcx> Visitor<'tcx> for TypeChecker<'a, 'tcx> {
}
_ => {}
}
self.super_projection_elem(local, proj_base, elem, context, location);
self.super_projection_elem(place_ref, elem, context, location);
}
fn visit_var_debug_info(&mut self, debuginfo: &VarDebugInfo<'tcx>) {