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Remove implicit `Continue` type

This commit is contained in:
LeSeulArtichaut 2020-10-25 11:50:56 +01:00
parent 24e1a7e656
commit 9433eb83fe
30 changed files with 129 additions and 135 deletions
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2
compiler/rustc_infer/src/infer/error_reporting/mod.rs
View File

@ -1498,7 +1498,7 @@ impl<'a, 'tcx> InferCtxt<'a, 'tcx> {
}
impl<'tcx> ty::fold::TypeVisitor<'tcx> for OpaqueTypesVisitor<'tcx> {
fn visit_ty(&mut self, t: Ty<'tcx>) -> ControlFlow<(), ()> {
fn visit_ty(&mut self, t: Ty<'tcx>) -> ControlFlow<()> {
if let Some((kind, def_id)) = TyCategory::from_ty(t) {
let span = self.tcx.def_span(def_id);
// Avoid cluttering the output when the "found" and error span overlap:

2
compiler/rustc_infer/src/infer/error_reporting/nice_region_error/static_impl_trait.rs
View File

@ -474,7 +474,7 @@ impl<'a, 'tcx> NiceRegionError<'a, 'tcx> {
struct TraitObjectVisitor(Vec<DefId>);
impl TypeVisitor<'_> for TraitObjectVisitor {
fn visit_ty(&mut self, t: Ty<'_>) -> ControlFlow<(), ()> {
fn visit_ty(&mut self, t: Ty<'_>) -> ControlFlow<()> {
match t.kind() {
ty::Dynamic(preds, RegionKind::ReStatic) => {
if let Some(def_id) = preds.principal_def_id() {

4
compiler/rustc_infer/src/infer/nll_relate/mod.rs
View File

@ -741,7 +741,7 @@ struct ScopeInstantiator<'me, 'tcx> {
}
impl<'me, 'tcx> TypeVisitor<'tcx> for ScopeInstantiator<'me, 'tcx> {
fn visit_binder<T: TypeFoldable<'tcx>>(&mut self, t: &ty::Binder<T>) -> ControlFlow<(), ()> {
fn visit_binder<T: TypeFoldable<'tcx>>(&mut self, t: &ty::Binder<T>) -> ControlFlow<()> {
self.target_index.shift_in(1);
t.super_visit_with(self);
self.target_index.shift_out(1);
@ -749,7 +749,7 @@ impl<'me, 'tcx> TypeVisitor<'tcx> for ScopeInstantiator<'me, 'tcx> {
ControlFlow::CONTINUE
}
fn visit_region(&mut self, r: ty::Region<'tcx>) -> ControlFlow<(), ()> {
fn visit_region(&mut self, r: ty::Region<'tcx>) -> ControlFlow<()> {
let ScopeInstantiator { bound_region_scope, next_region, .. } = self;
match r {

2
compiler/rustc_infer/src/infer/resolve.rs
View File

@ -123,7 +123,7 @@ impl<'a, 'tcx> UnresolvedTypeFinder<'a, 'tcx> {
}
impl<'a, 'tcx> TypeVisitor<'tcx> for UnresolvedTypeFinder<'a, 'tcx> {
fn visit_ty(&mut self, t: Ty<'tcx>) -> ControlFlow<(), ()> {
fn visit_ty(&mut self, t: Ty<'tcx>) -> ControlFlow<()> {
let t = self.infcx.shallow_resolve(t);
if t.has_infer_types() {
if let ty::Infer(infer_ty) = *t.kind() {

2
compiler/rustc_infer/src/traits/structural_impls.rs
View File

@ -69,7 +69,7 @@ impl<'tcx, O: TypeFoldable<'tcx>> TypeFoldable<'tcx> for traits::Obligation<'tcx
}
}
fn super_visit_with<V: TypeVisitor<'tcx>>(&self, visitor: &mut V) -> ControlFlow<(), ()> {
fn super_visit_with<V: TypeVisitor<'tcx>>(&self, visitor: &mut V) -> ControlFlow<()> {
self.predicate.visit_with(visitor)
}
}

2
compiler/rustc_lint/src/types.rs
View File

@ -1136,7 +1136,7 @@ impl<'a, 'tcx> ImproperCTypesVisitor<'a, 'tcx> {
};
impl<'a, 'tcx> ty::fold::TypeVisitor<'tcx> for ProhibitOpaqueTypes<'a, 'tcx> {
fn visit_ty(&mut self, ty: Ty<'tcx>) -> ControlFlow<(), ()> {
fn visit_ty(&mut self, ty: Ty<'tcx>) -> ControlFlow<()> {
match ty.kind() {
ty::Opaque(..) => {
self.ty = Some(ty);

2
compiler/rustc_macros/src/type_foldable.rs
View File

@ -36,7 +36,7 @@ pub fn type_foldable_derive(mut s: synstructure::Structure<'_>) -> proc_macro2::
fn super_visit_with<__F: ::rustc_middle::ty::fold::TypeVisitor<'tcx>>(
&self,
__folder: &mut __F
) -> ::std::ops::ControlFlow<(), ()> {
) -> ::std::ops::ControlFlow<()> {
match *self { #body_visit }
::std::ops::ControlFlow::CONTINUE
}

4
compiler/rustc_middle/src/macros.rs
View File

@ -62,7 +62,7 @@ macro_rules! CloneTypeFoldableImpls {
fn super_visit_with<F: $crate::ty::fold::TypeVisitor<$tcx>>(
&self,
_: &mut F)
-> ::std::ops::ControlFlow<(), ()>
-> ::std::ops::ControlFlow<()>
{
::std::ops::ControlFlow::CONTINUE
}
@ -105,7 +105,7 @@ macro_rules! EnumTypeFoldableImpl {
fn super_visit_with<V: $crate::ty::fold::TypeVisitor<$tcx>>(
&self,
visitor: &mut V,
) -> ::std::ops::ControlFlow<(), ()> {
) -> ::std::ops::ControlFlow<()> {
EnumTypeFoldableImpl!(@VisitVariants(self, visitor) input($($variants)*) output())
}
}

2
compiler/rustc_middle/src/mir/mod.rs
View File

@ -2489,7 +2489,7 @@ impl<'tcx> TypeFoldable<'tcx> for UserTypeProjection {
UserTypeProjection { base, projs }
}
fn super_visit_with<Vs: TypeVisitor<'tcx>>(&self, visitor: &mut Vs) -> ControlFlow<(), ()> {
fn super_visit_with<Vs: TypeVisitor<'tcx>>(&self, visitor: &mut Vs) -> ControlFlow<()> {
self.base.visit_with(visitor)
// Note: there's nothing in `self.proj` to visit.
}

22
compiler/rustc_middle/src/mir/type_foldable.rs
View File

@ -87,7 +87,7 @@ impl<'tcx> TypeFoldable<'tcx> for Terminator<'tcx> {
Terminator { source_info: self.source_info, kind }
}
fn super_visit_with<V: TypeVisitor<'tcx>>(&self, visitor: &mut V) -> ControlFlow<(), ()> {
fn super_visit_with<V: TypeVisitor<'tcx>>(&self, visitor: &mut V) -> ControlFlow<()> {
use crate::mir::TerminatorKind::*;
match self.kind {
@ -147,7 +147,7 @@ impl<'tcx> TypeFoldable<'tcx> for GeneratorKind {
*self
}
fn super_visit_with<V: TypeVisitor<'tcx>>(&self, _: &mut V) -> ControlFlow<(), ()> {
fn super_visit_with<V: TypeVisitor<'tcx>>(&self, _: &mut V) -> ControlFlow<()> {
ControlFlow::CONTINUE
}
}
@ -157,7 +157,7 @@ impl<'tcx> TypeFoldable<'tcx> for Place<'tcx> {
Place { local: self.local.fold_with(folder), projection: self.projection.fold_with(folder) }
}
fn super_visit_with<V: TypeVisitor<'tcx>>(&self, visitor: &mut V) -> ControlFlow<(), ()> {
fn super_visit_with<V: TypeVisitor<'tcx>>(&self, visitor: &mut V) -> ControlFlow<()> {
self.local.visit_with(visitor)?;
self.projection.visit_with(visitor)
}
@ -169,7 +169,7 @@ impl<'tcx> TypeFoldable<'tcx> for &'tcx ty::List<PlaceElem<'tcx>> {
folder.tcx().intern_place_elems(&v)
}
fn super_visit_with<V: TypeVisitor<'tcx>>(&self, visitor: &mut V) -> ControlFlow<(), ()> {
fn super_visit_with<V: TypeVisitor<'tcx>>(&self, visitor: &mut V) -> ControlFlow<()> {
self.iter().try_for_each(|t| t.visit_with(visitor))
}
}
@ -219,7 +219,7 @@ impl<'tcx> TypeFoldable<'tcx> for Rvalue<'tcx> {
}
}
fn super_visit_with<V: TypeVisitor<'tcx>>(&self, visitor: &mut V) -> ControlFlow<(), ()> {
fn super_visit_with<V: TypeVisitor<'tcx>>(&self, visitor: &mut V) -> ControlFlow<()> {
use crate::mir::Rvalue::*;
match *self {
Use(ref op) => op.visit_with(visitor),
@ -274,7 +274,7 @@ impl<'tcx> TypeFoldable<'tcx> for Operand<'tcx> {
}
}
fn super_visit_with<V: TypeVisitor<'tcx>>(&self, visitor: &mut V) -> ControlFlow<(), ()> {
fn super_visit_with<V: TypeVisitor<'tcx>>(&self, visitor: &mut V) -> ControlFlow<()> {
match *self {
Operand::Copy(ref place) | Operand::Move(ref place) => place.visit_with(visitor),
Operand::Constant(ref c) => c.visit_with(visitor),
@ -298,7 +298,7 @@ impl<'tcx> TypeFoldable<'tcx> for PlaceElem<'tcx> {
}
}
fn super_visit_with<Vs: TypeVisitor<'tcx>>(&self, visitor: &mut Vs) -> ControlFlow<(), ()> {
fn super_visit_with<Vs: TypeVisitor<'tcx>>(&self, visitor: &mut Vs) -> ControlFlow<()> {
use crate::mir::ProjectionElem::*;
match self {
@ -313,7 +313,7 @@ impl<'tcx> TypeFoldable<'tcx> for Field {
fn super_fold_with<F: TypeFolder<'tcx>>(&self, _: &mut F) -> Self {
*self
}
fn super_visit_with<V: TypeVisitor<'tcx>>(&self, _: &mut V) -> ControlFlow<(), ()> {
fn super_visit_with<V: TypeVisitor<'tcx>>(&self, _: &mut V) -> ControlFlow<()> {
ControlFlow::CONTINUE
}
}
@ -322,7 +322,7 @@ impl<'tcx> TypeFoldable<'tcx> for GeneratorSavedLocal {
fn super_fold_with<F: TypeFolder<'tcx>>(&self, _: &mut F) -> Self {
*self
}
fn super_visit_with<V: TypeVisitor<'tcx>>(&self, _: &mut V) -> ControlFlow<(), ()> {
fn super_visit_with<V: TypeVisitor<'tcx>>(&self, _: &mut V) -> ControlFlow<()> {
ControlFlow::CONTINUE
}
}
@ -331,7 +331,7 @@ impl<'tcx, R: Idx, C: Idx> TypeFoldable<'tcx> for BitMatrix<R, C> {
fn super_fold_with<F: TypeFolder<'tcx>>(&self, _: &mut F) -> Self {
self.clone()
}
fn super_visit_with<V: TypeVisitor<'tcx>>(&self, _: &mut V) -> ControlFlow<(), ()> {
fn super_visit_with<V: TypeVisitor<'tcx>>(&self, _: &mut V) -> ControlFlow<()> {
ControlFlow::CONTINUE
}
}
@ -344,7 +344,7 @@ impl<'tcx> TypeFoldable<'tcx> for Constant<'tcx> {
literal: self.literal.fold_with(folder),
}
}
fn super_visit_with<V: TypeVisitor<'tcx>>(&self, visitor: &mut V) -> ControlFlow<(), ()> {
fn super_visit_with<V: TypeVisitor<'tcx>>(&self, visitor: &mut V) -> ControlFlow<()> {
self.literal.visit_with(visitor)
}
}

60
compiler/rustc_middle/src/ty/fold.rs
View File

@ -49,8 +49,8 @@ pub trait TypeFoldable<'tcx>: fmt::Debug + Clone {
self.super_fold_with(folder)
}
fn super_visit_with<V: TypeVisitor<'tcx>>(&self, visitor: &mut V) -> ControlFlow<(), ()>;
fn visit_with<V: TypeVisitor<'tcx>>(&self, visitor: &mut V) -> ControlFlow<(), ()> {
fn super_visit_with<V: TypeVisitor<'tcx>>(&self, visitor: &mut V) -> ControlFlow<()>;
fn visit_with<V: TypeVisitor<'tcx>>(&self, visitor: &mut V) -> ControlFlow<()> {
self.super_visit_with(visitor)
}
@ -144,14 +144,11 @@ pub trait TypeFoldable<'tcx>: fmt::Debug + Clone {
}
/// A visitor that does not recurse into types, works like `fn walk_shallow` in `Ty`.
fn visit_tys_shallow(
&self,
visit: impl FnMut(Ty<'tcx>) -> ControlFlow<(), ()>,
) -> ControlFlow<(), ()> {
fn visit_tys_shallow(&self, visit: impl FnMut(Ty<'tcx>) -> ControlFlow<()>) -> ControlFlow<()> {
pub struct Visitor<F>(F);
impl<'tcx, F: FnMut(Ty<'tcx>) -> ControlFlow<(), ()>> TypeVisitor<'tcx> for Visitor<F> {
fn visit_ty(&mut self, ty: Ty<'tcx>) -> ControlFlow<(), ()> {
impl<'tcx, F: FnMut(Ty<'tcx>) -> ControlFlow<()>> TypeVisitor<'tcx> for Visitor<F> {
fn visit_ty(&mut self, ty: Ty<'tcx>) -> ControlFlow<()> {
self.0(ty)
}
}
@ -164,7 +161,7 @@ impl TypeFoldable<'tcx> for hir::Constness {
fn super_fold_with<F: TypeFolder<'tcx>>(&self, _: &mut F) -> Self {
*self
}
fn super_visit_with<V: TypeVisitor<'tcx>>(&self, _: &mut V) -> ControlFlow<(), ()> {
fn super_visit_with<V: TypeVisitor<'tcx>>(&self, _: &mut V) -> ControlFlow<()> {
ControlFlow::CONTINUE
}
}
@ -198,23 +195,23 @@ pub trait TypeFolder<'tcx>: Sized {
}
pub trait TypeVisitor<'tcx>: Sized {
fn visit_binder<T: TypeFoldable<'tcx>>(&mut self, t: &Binder<T>) -> ControlFlow<(), ()> {
fn visit_binder<T: TypeFoldable<'tcx>>(&mut self, t: &Binder<T>) -> ControlFlow<()> {
t.super_visit_with(self)
}
fn visit_ty(&mut self, t: Ty<'tcx>) -> ControlFlow<(), ()> {
fn visit_ty(&mut self, t: Ty<'tcx>) -> ControlFlow<()> {
t.super_visit_with(self)
}
fn visit_region(&mut self, r: ty::Region<'tcx>) -> ControlFlow<(), ()> {
fn visit_region(&mut self, r: ty::Region<'tcx>) -> ControlFlow<()> {
r.super_visit_with(self)
}
fn visit_const(&mut self, c: &'tcx ty::Const<'tcx>) -> ControlFlow<(), ()> {
fn visit_const(&mut self, c: &'tcx ty::Const<'tcx>) -> ControlFlow<()> {
c.super_visit_with(self)
}
fn visit_predicate(&mut self, p: ty::Predicate<'tcx>) -> ControlFlow<(), ()> {
fn visit_predicate(&mut self, p: ty::Predicate<'tcx>) -> ControlFlow<()> {
p.super_visit_with(self)
}
}
@ -332,17 +329,14 @@ impl<'tcx> TyCtxt<'tcx> {
where
F: FnMut(ty::Region<'tcx>) -> bool,
{
fn visit_binder<T: TypeFoldable<'tcx>>(
&mut self,
t: &Binder<T>,
) -> ControlFlow<(), ()> {
fn visit_binder<T: TypeFoldable<'tcx>>(&mut self, t: &Binder<T>) -> ControlFlow<()> {
self.outer_index.shift_in(1);
let result = t.as_ref().skip_binder().visit_with(self);
self.outer_index.shift_out(1);
result
}
fn visit_region(&mut self, r: ty::Region<'tcx>) -> ControlFlow<(), ()> {
fn visit_region(&mut self, r: ty::Region<'tcx>) -> ControlFlow<()> {
match *r {
ty::ReLateBound(debruijn, _) if debruijn < self.outer_index => {
ControlFlow::CONTINUE
@ -357,7 +351,7 @@ impl<'tcx> TyCtxt<'tcx> {
}
}
fn visit_ty(&mut self, ty: Ty<'tcx>) -> ControlFlow<(), ()> {
fn visit_ty(&mut self, ty: Ty<'tcx>) -> ControlFlow<()> {
// We're only interested in types involving regions
if ty.flags().intersects(TypeFlags::HAS_FREE_REGIONS) {
ty.super_visit_with(self)
@ -849,14 +843,14 @@ struct HasEscapingVarsVisitor {
}
impl<'tcx> TypeVisitor<'tcx> for HasEscapingVarsVisitor {
fn visit_binder<T: TypeFoldable<'tcx>>(&mut self, t: &Binder<T>) -> ControlFlow<(), ()> {
fn visit_binder<T: TypeFoldable<'tcx>>(&mut self, t: &Binder<T>) -> ControlFlow<()> {
self.outer_index.shift_in(1);
let result = t.super_visit_with(self);
self.outer_index.shift_out(1);
result
}
fn visit_ty(&mut self, t: Ty<'tcx>) -> ControlFlow<(), ()> {
fn visit_ty(&mut self, t: Ty<'tcx>) -> ControlFlow<()> {
// If the outer-exclusive-binder is *strictly greater* than
// `outer_index`, that means that `t` contains some content
// bound at `outer_index` or above (because
@ -869,7 +863,7 @@ impl<'tcx> TypeVisitor<'tcx> for HasEscapingVarsVisitor {
}
}
fn visit_region(&mut self, r: ty::Region<'tcx>) -> ControlFlow<(), ()> {
fn visit_region(&mut self, r: ty::Region<'tcx>) -> ControlFlow<()> {
// If the region is bound by `outer_index` or anything outside
// of outer index, then it escapes the binders we have
// visited.
@ -880,7 +874,7 @@ impl<'tcx> TypeVisitor<'tcx> for HasEscapingVarsVisitor {
}
}
fn visit_const(&mut self, ct: &'tcx ty::Const<'tcx>) -> ControlFlow<(), ()> {
fn visit_const(&mut self, ct: &'tcx ty::Const<'tcx>) -> ControlFlow<()> {
// we don't have a `visit_infer_const` callback, so we have to
// hook in here to catch this case (annoying...), but
// otherwise we do want to remember to visit the rest of the
@ -892,7 +886,7 @@ impl<'tcx> TypeVisitor<'tcx> for HasEscapingVarsVisitor {
}
}
fn visit_predicate(&mut self, predicate: ty::Predicate<'tcx>) -> ControlFlow<(), ()> {
fn visit_predicate(&mut self, predicate: ty::Predicate<'tcx>) -> ControlFlow<()> {
if predicate.inner.outer_exclusive_binder > self.outer_index {
ControlFlow::BREAK
} else {
@ -907,7 +901,7 @@ struct HasTypeFlagsVisitor {
}
impl<'tcx> TypeVisitor<'tcx> for HasTypeFlagsVisitor {
fn visit_ty(&mut self, t: Ty<'_>) -> ControlFlow<(), ()> {
fn visit_ty(&mut self, t: Ty<'_>) -> ControlFlow<()> {
debug!(
"HasTypeFlagsVisitor: t={:?} t.flags={:?} self.flags={:?}",
t,
@ -917,19 +911,19 @@ impl<'tcx> TypeVisitor<'tcx> for HasTypeFlagsVisitor {
if t.flags().intersects(self.flags) { ControlFlow::BREAK } else { ControlFlow::CONTINUE }
}
fn visit_region(&mut self, r: ty::Region<'tcx>) -> ControlFlow<(), ()> {
fn visit_region(&mut self, r: ty::Region<'tcx>) -> ControlFlow<()> {
let flags = r.type_flags();
debug!("HasTypeFlagsVisitor: r={:?} r.flags={:?} self.flags={:?}", r, flags, self.flags);
if flags.intersects(self.flags) { ControlFlow::BREAK } else { ControlFlow::CONTINUE }
}
fn visit_const(&mut self, c: &'tcx ty::Const<'tcx>) -> ControlFlow<(), ()> {
fn visit_const(&mut self, c: &'tcx ty::Const<'tcx>) -> ControlFlow<()> {
let flags = FlagComputation::for_const(c);
debug!("HasTypeFlagsVisitor: c={:?} c.flags={:?} self.flags={:?}", c, flags, self.flags);
if flags.intersects(self.flags) { ControlFlow::BREAK } else { ControlFlow::CONTINUE }
}
fn visit_predicate(&mut self, predicate: ty::Predicate<'tcx>) -> ControlFlow<(), ()> {
fn visit_predicate(&mut self, predicate: ty::Predicate<'tcx>) -> ControlFlow<()> {
debug!(
"HasTypeFlagsVisitor: predicate={:?} predicate.flags={:?} self.flags={:?}",
predicate, predicate.inner.flags, self.flags
@ -969,14 +963,14 @@ impl LateBoundRegionsCollector {
}
impl<'tcx> TypeVisitor<'tcx> for LateBoundRegionsCollector {
fn visit_binder<T: TypeFoldable<'tcx>>(&mut self, t: &Binder<T>) -> ControlFlow<(), ()> {
fn visit_binder<T: TypeFoldable<'tcx>>(&mut self, t: &Binder<T>) -> ControlFlow<()> {
self.current_index.shift_in(1);
let result = t.super_visit_with(self);
self.current_index.shift_out(1);
result
}
fn visit_ty(&mut self, t: Ty<'tcx>) -> ControlFlow<(), ()> {
fn visit_ty(&mut self, t: Ty<'tcx>) -> ControlFlow<()> {
// if we are only looking for "constrained" region, we have to
// ignore the inputs to a projection, as they may not appear
// in the normalized form
@ -989,7 +983,7 @@ impl<'tcx> TypeVisitor<'tcx> for LateBoundRegionsCollector {
t.super_visit_with(self)
}
fn visit_const(&mut self, c: &'tcx ty::Const<'tcx>) -> ControlFlow<(), ()> {
fn visit_const(&mut self, c: &'tcx ty::Const<'tcx>) -> ControlFlow<()> {
// if we are only looking for "constrained" region, we have to
// ignore the inputs of an unevaluated const, as they may not appear
// in the normalized form
@ -1002,7 +996,7 @@ impl<'tcx> TypeVisitor<'tcx> for LateBoundRegionsCollector {
c.super_visit_with(self)
}
fn visit_region(&mut self, r: ty::Region<'tcx>) -> ControlFlow<(), ()> {
fn visit_region(&mut self, r: ty::Region<'tcx>) -> ControlFlow<()> {
if let ty::ReLateBound(debruijn, br) = *r {
if debruijn == self.current_index {
self.regions.insert(br);

2
compiler/rustc_middle/src/ty/mod.rs
View File

@ -1776,7 +1776,7 @@ impl<'tcx> TypeFoldable<'tcx> for ParamEnv<'tcx> {
ParamEnv::new(self.caller_bounds().fold_with(folder), self.reveal().fold_with(folder))
}
fn super_visit_with<V: TypeVisitor<'tcx>>(&self, visitor: &mut V) -> ControlFlow<(), ()> {
fn super_visit_with<V: TypeVisitor<'tcx>>(&self, visitor: &mut V) -> ControlFlow<()> {
self.caller_bounds().visit_with(visitor)?;
self.reveal().visit_with(visitor)
}

2
compiler/rustc_middle/src/ty/print/pretty.rs
View File

@ -1803,7 +1803,7 @@ impl<F: fmt::Write> FmtPrinter<'_, 'tcx, F> {
{
struct LateBoundRegionNameCollector<'a>(&'a mut FxHashSet<Symbol>);
impl<'tcx> ty::fold::TypeVisitor<'tcx> for LateBoundRegionNameCollector<'_> {
fn visit_region(&mut self, r: ty::Region<'tcx>) -> ControlFlow<(), ()> {
fn visit_region(&mut self, r: ty::Region<'tcx>) -> ControlFlow<()> {
if let ty::ReLateBound(_, ty::BrNamed(_, name)) = *r {
self.0.insert(name);
}

54
compiler/rustc_middle/src/ty/structural_impls.rs
View File

@ -728,7 +728,7 @@ impl<'tcx> TypeFoldable<'tcx> for &'tcx ty::AdtDef {
*self
}
fn super_visit_with<V: TypeVisitor<'tcx>>(&self, _visitor: &mut V) -> ControlFlow<(), ()> {
fn super_visit_with<V: TypeVisitor<'tcx>>(&self, _visitor: &mut V) -> ControlFlow<()> {
ControlFlow::CONTINUE
}
}
@ -738,7 +738,7 @@ impl<'tcx, T: TypeFoldable<'tcx>, U: TypeFoldable<'tcx>> TypeFoldable<'tcx> for
(self.0.fold_with(folder), self.1.fold_with(folder))
}
fn super_visit_with<V: TypeVisitor<'tcx>>(&self, visitor: &mut V) -> ControlFlow<(), ()> {
fn super_visit_with<V: TypeVisitor<'tcx>>(&self, visitor: &mut V) -> ControlFlow<()> {
self.0.visit_with(visitor)?;
self.1.visit_with(visitor)
}
@ -751,7 +751,7 @@ impl<'tcx, A: TypeFoldable<'tcx>, B: TypeFoldable<'tcx>, C: TypeFoldable<'tcx>>
(self.0.fold_with(folder), self.1.fold_with(folder), self.2.fold_with(folder))
}
fn super_visit_with<V: TypeVisitor<'tcx>>(&self, visitor: &mut V) -> ControlFlow<(), ()> {
fn super_visit_with<V: TypeVisitor<'tcx>>(&self, visitor: &mut V) -> ControlFlow<()> {
self.0.visit_with(visitor)?;
self.1.visit_with(visitor)?;
self.2.visit_with(visitor)
@ -777,7 +777,7 @@ impl<'tcx, T: TypeFoldable<'tcx>> TypeFoldable<'tcx> for Rc<T> {
Rc::new((**self).fold_with(folder))
}
fn super_visit_with<V: TypeVisitor<'tcx>>(&self, visitor: &mut V) -> ControlFlow<(), ()> {
fn super_visit_with<V: TypeVisitor<'tcx>>(&self, visitor: &mut V) -> ControlFlow<()> {
(**self).visit_with(visitor)
}
}
@ -787,7 +787,7 @@ impl<'tcx, T: TypeFoldable<'tcx>> TypeFoldable<'tcx> for Arc<T> {
Arc::new((**self).fold_with(folder))
}
fn super_visit_with<V: TypeVisitor<'tcx>>(&self, visitor: &mut V) -> ControlFlow<(), ()> {
fn super_visit_with<V: TypeVisitor<'tcx>>(&self, visitor: &mut V) -> ControlFlow<()> {
(**self).visit_with(visitor)
}
}
@ -798,7 +798,7 @@ impl<'tcx, T: TypeFoldable<'tcx>> TypeFoldable<'tcx> for Box<T> {
box content
}
fn super_visit_with<V: TypeVisitor<'tcx>>(&self, visitor: &mut V) -> ControlFlow<(), ()> {
fn super_visit_with<V: TypeVisitor<'tcx>>(&self, visitor: &mut V) -> ControlFlow<()> {
(**self).visit_with(visitor)
}
}
@ -808,7 +808,7 @@ impl<'tcx, T: TypeFoldable<'tcx>> TypeFoldable<'tcx> for Vec<T> {
self.iter().map(|t| t.fold_with(folder)).collect()
}
fn super_visit_with<V: TypeVisitor<'tcx>>(&self, visitor: &mut V) -> ControlFlow<(), ()> {
fn super_visit_with<V: TypeVisitor<'tcx>>(&self, visitor: &mut V) -> ControlFlow<()> {
self.iter().try_for_each(|t| t.visit_with(visitor))
}
}
@ -818,7 +818,7 @@ impl<'tcx, T: TypeFoldable<'tcx>> TypeFoldable<'tcx> for Box<[T]> {
self.iter().map(|t| t.fold_with(folder)).collect::<Vec<_>>().into_boxed_slice()
}
fn super_visit_with<V: TypeVisitor<'tcx>>(&self, visitor: &mut V) -> ControlFlow<(), ()> {
fn super_visit_with<V: TypeVisitor<'tcx>>(&self, visitor: &mut V) -> ControlFlow<()> {
self.iter().try_for_each(|t| t.visit_with(visitor))
}
}
@ -832,11 +832,11 @@ impl<'tcx, T: TypeFoldable<'tcx>> TypeFoldable<'tcx> for ty::Binder<T> {
folder.fold_binder(self)
}
fn super_visit_with<V: TypeVisitor<'tcx>>(&self, visitor: &mut V) -> ControlFlow<(), ()> {
fn super_visit_with<V: TypeVisitor<'tcx>>(&self, visitor: &mut V) -> ControlFlow<()> {
self.as_ref().skip_binder().visit_with(visitor)
}
fn visit_with<V: TypeVisitor<'tcx>>(&self, visitor: &mut V) -> ControlFlow<(), ()> {
fn visit_with<V: TypeVisitor<'tcx>>(&self, visitor: &mut V) -> ControlFlow<()> {
visitor.visit_binder(self)
}
}
@ -846,7 +846,7 @@ impl<'tcx> TypeFoldable<'tcx> for &'tcx ty::List<ty::ExistentialPredicate<'tcx>>
fold_list(*self, folder, |tcx, v| tcx.intern_existential_predicates(v))
}
fn super_visit_with<V: TypeVisitor<'tcx>>(&self, visitor: &mut V) -> ControlFlow<(), ()> {
fn super_visit_with<V: TypeVisitor<'tcx>>(&self, visitor: &mut V) -> ControlFlow<()> {
self.iter().try_for_each(|p| p.visit_with(visitor))
}
}
@ -856,7 +856,7 @@ impl<'tcx> TypeFoldable<'tcx> for &'tcx ty::List<Ty<'tcx>> {
fold_list(*self, folder, |tcx, v| tcx.intern_type_list(v))
}
fn super_visit_with<V: TypeVisitor<'tcx>>(&self, visitor: &mut V) -> ControlFlow<(), ()> {
fn super_visit_with<V: TypeVisitor<'tcx>>(&self, visitor: &mut V) -> ControlFlow<()> {
self.iter().try_for_each(|t| t.visit_with(visitor))
}
}
@ -866,7 +866,7 @@ impl<'tcx> TypeFoldable<'tcx> for &'tcx ty::List<ProjectionKind> {
fold_list(*self, folder, |tcx, v| tcx.intern_projs(v))
}
fn super_visit_with<V: TypeVisitor<'tcx>>(&self, visitor: &mut V) -> ControlFlow<(), ()> {
fn super_visit_with<V: TypeVisitor<'tcx>>(&self, visitor: &mut V) -> ControlFlow<()> {
self.iter().try_for_each(|t| t.visit_with(visitor))
}
}
@ -892,7 +892,7 @@ impl<'tcx> TypeFoldable<'tcx> for ty::instance::Instance<'tcx> {
}
}
fn super_visit_with<V: TypeVisitor<'tcx>>(&self, visitor: &mut V) -> ControlFlow<(), ()> {
fn super_visit_with<V: TypeVisitor<'tcx>>(&self, visitor: &mut V) -> ControlFlow<()> {
use crate::ty::InstanceDef::*;
self.substs.visit_with(visitor)?;
match self.def {
@ -918,7 +918,7 @@ impl<'tcx> TypeFoldable<'tcx> for interpret::GlobalId<'tcx> {
Self { instance: self.instance.fold_with(folder), promoted: self.promoted }
}
fn super_visit_with<V: TypeVisitor<'tcx>>(&self, visitor: &mut V) -> ControlFlow<(), ()> {
fn super_visit_with<V: TypeVisitor<'tcx>>(&self, visitor: &mut V) -> ControlFlow<()> {
self.instance.visit_with(visitor)
}
}
@ -967,7 +967,7 @@ impl<'tcx> TypeFoldable<'tcx> for Ty<'tcx> {
folder.fold_ty(*self)
}
fn super_visit_with<V: TypeVisitor<'tcx>>(&self, visitor: &mut V) -> ControlFlow<(), ()> {
fn super_visit_with<V: TypeVisitor<'tcx>>(&self, visitor: &mut V) -> ControlFlow<()> {
match self.kind() {
ty::RawPtr(ref tm) => tm.visit_with(visitor),
ty::Array(typ, sz) => {
@ -1009,7 +1009,7 @@ impl<'tcx> TypeFoldable<'tcx> for Ty<'tcx> {
}
}
fn visit_with<V: TypeVisitor<'tcx>>(&self, visitor: &mut V) -> ControlFlow<(), ()> {
fn visit_with<V: TypeVisitor<'tcx>>(&self, visitor: &mut V) -> ControlFlow<()> {
visitor.visit_ty(self)
}
}
@ -1023,11 +1023,11 @@ impl<'tcx> TypeFoldable<'tcx> for ty::Region<'tcx> {
folder.fold_region(*self)
}
fn super_visit_with<V: TypeVisitor<'tcx>>(&self, _visitor: &mut V) -> ControlFlow<(), ()> {
fn super_visit_with<V: TypeVisitor<'tcx>>(&self, _visitor: &mut V) -> ControlFlow<()> {
ControlFlow::CONTINUE
}
fn visit_with<V: TypeVisitor<'tcx>>(&self, visitor: &mut V) -> ControlFlow<(), ()> {
fn visit_with<V: TypeVisitor<'tcx>>(&self, visitor: &mut V) -> ControlFlow<()> {
visitor.visit_region(*self)
}
}
@ -1038,11 +1038,11 @@ impl<'tcx> TypeFoldable<'tcx> for ty::Predicate<'tcx> {
folder.tcx().reuse_or_mk_predicate(*self, new)
}
fn super_visit_with<V: TypeVisitor<'tcx>>(&self, visitor: &mut V) -> ControlFlow<(), ()> {
fn super_visit_with<V: TypeVisitor<'tcx>>(&self, visitor: &mut V) -> ControlFlow<()> {
ty::PredicateKind::super_visit_with(&self.inner.kind, visitor)
}
fn visit_with<V: TypeVisitor<'tcx>>(&self, visitor: &mut V) -> ControlFlow<(), ()> {
fn visit_with<V: TypeVisitor<'tcx>>(&self, visitor: &mut V) -> ControlFlow<()> {
visitor.visit_predicate(*self)
}
@ -1060,7 +1060,7 @@ impl<'tcx> TypeFoldable<'tcx> for &'tcx ty::List<ty::Predicate<'tcx>> {
fold_list(*self, folder, |tcx, v| tcx.intern_predicates(v))
}
fn super_visit_with<V: TypeVisitor<'tcx>>(&self, visitor: &mut V) -> ControlFlow<(), ()> {
fn super_visit_with<V: TypeVisitor<'tcx>>(&self, visitor: &mut V) -> ControlFlow<()> {
self.iter().try_for_each(|p| p.visit_with(visitor))
}
}
@ -1070,7 +1070,7 @@ impl<'tcx, T: TypeFoldable<'tcx>, I: Idx> TypeFoldable<'tcx> for IndexVec<I, T>
self.iter().map(|x| x.fold_with(folder)).collect()
}
fn super_visit_with<V: TypeVisitor<'tcx>>(&self, visitor: &mut V) -> ControlFlow<(), ()> {
fn super_visit_with<V: TypeVisitor<'tcx>>(&self, visitor: &mut V) -> ControlFlow<()> {
self.iter().try_for_each(|t| t.visit_with(visitor))
}
}
@ -1090,12 +1090,12 @@ impl<'tcx> TypeFoldable<'tcx> for &'tcx ty::Const<'tcx> {
folder.fold_const(*self)
}
fn super_visit_with<V: TypeVisitor<'tcx>>(&self, visitor: &mut V) -> ControlFlow<(), ()> {
fn super_visit_with<V: TypeVisitor<'tcx>>(&self, visitor: &mut V) -> ControlFlow<()> {
self.ty.visit_with(visitor)?;
self.val.visit_with(visitor)
}
fn visit_with<V: TypeVisitor<'tcx>>(&self, visitor: &mut V) -> ControlFlow<(), ()> {
fn visit_with<V: TypeVisitor<'tcx>>(&self, visitor: &mut V) -> ControlFlow<()> {
visitor.visit_const(self)
}
}
@ -1115,7 +1115,7 @@ impl<'tcx> TypeFoldable<'tcx> for ty::ConstKind<'tcx> {
}
}
fn super_visit_with<V: TypeVisitor<'tcx>>(&self, visitor: &mut V) -> ControlFlow<(), ()> {
fn super_visit_with<V: TypeVisitor<'tcx>>(&self, visitor: &mut V) -> ControlFlow<()> {
match *self {
ty::ConstKind::Infer(ic) => ic.visit_with(visitor),
ty::ConstKind::Param(p) => p.visit_with(visitor),
@ -1133,7 +1133,7 @@ impl<'tcx> TypeFoldable<'tcx> for InferConst<'tcx> {
*self
}
fn super_visit_with<V: TypeVisitor<'tcx>>(&self, _visitor: &mut V) -> ControlFlow<(), ()> {
fn super_visit_with<V: TypeVisitor<'tcx>>(&self, _visitor: &mut V) -> ControlFlow<()> {
ControlFlow::CONTINUE
}
}

4
compiler/rustc_middle/src/ty/subst.rs
View File

@ -160,7 +160,7 @@ impl<'tcx> TypeFoldable<'tcx> for GenericArg<'tcx> {
}
}
fn super_visit_with<V: TypeVisitor<'tcx>>(&self, visitor: &mut V) -> ControlFlow<(), ()> {
fn super_visit_with<V: TypeVisitor<'tcx>>(&self, visitor: &mut V) -> ControlFlow<()> {
match self.unpack() {
GenericArgKind::Lifetime(lt) => lt.visit_with(visitor),
GenericArgKind::Type(ty) => ty.visit_with(visitor),
@ -392,7 +392,7 @@ impl<'tcx> TypeFoldable<'tcx> for SubstsRef<'tcx> {
}
}
fn super_visit_with<V: TypeVisitor<'tcx>>(&self, visitor: &mut V) -> ControlFlow<(), ()> {
fn super_visit_with<V: TypeVisitor<'tcx>>(&self, visitor: &mut V) -> ControlFlow<()> {
self.iter().try_for_each(|t| t.visit_with(visitor))
}
}

4
compiler/rustc_mir/src/interpret/util.rs
View File

@ -18,7 +18,7 @@ where
};
impl<'tcx> TypeVisitor<'tcx> for UsedParamsNeedSubstVisitor<'tcx> {
fn visit_const(&mut self, c: &'tcx ty::Const<'tcx>) -> ControlFlow<(), ()> {
fn visit_const(&mut self, c: &'tcx ty::Const<'tcx>) -> ControlFlow<()> {
if !c.needs_subst() {
return ControlFlow::CONTINUE;
}
@ -29,7 +29,7 @@ where
}
}
fn visit_ty(&mut self, ty: Ty<'tcx>) -> ControlFlow<(), ()> {
fn visit_ty(&mut self, ty: Ty<'tcx>) -> ControlFlow<()> {
if !ty.needs_subst() {
return ControlFlow::CONTINUE;
}

8
compiler/rustc_mir/src/monomorphize/polymorphize.rs
View File

@ -250,7 +250,7 @@ impl<'a, 'tcx> Visitor<'tcx> for MarkUsedGenericParams<'a, 'tcx> {
}
impl<'a, 'tcx> TypeVisitor<'tcx> for MarkUsedGenericParams<'a, 'tcx> {
fn visit_const(&mut self, c: &'tcx Const<'tcx>) -> ControlFlow<(), ()> {
fn visit_const(&mut self, c: &'tcx Const<'tcx>) -> ControlFlow<()> {
debug!("visit_const: c={:?}", c);
if !c.has_param_types_or_consts() {
return ControlFlow::CONTINUE;
@ -283,7 +283,7 @@ impl<'a, 'tcx> TypeVisitor<'tcx> for MarkUsedGenericParams<'a, 'tcx> {
}
}
fn visit_ty(&mut self, ty: Ty<'tcx>) -> ControlFlow<(), ()> {
fn visit_ty(&mut self, ty: Ty<'tcx>) -> ControlFlow<()> {
debug!("visit_ty: ty={:?}", ty);
if !ty.has_param_types_or_consts() {
return ControlFlow::CONTINUE;
@ -318,7 +318,7 @@ struct HasUsedGenericParams<'a> {
}
impl<'a, 'tcx> TypeVisitor<'tcx> for HasUsedGenericParams<'a> {
fn visit_const(&mut self, c: &'tcx Const<'tcx>) -> ControlFlow<(), ()> {
fn visit_const(&mut self, c: &'tcx Const<'tcx>) -> ControlFlow<()> {
debug!("visit_const: c={:?}", c);
if !c.has_param_types_or_consts() {
return ControlFlow::CONTINUE;
@ -336,7 +336,7 @@ impl<'a, 'tcx> TypeVisitor<'tcx> for HasUsedGenericParams<'a> {
}
}
fn visit_ty(&mut self, ty: Ty<'tcx>) -> ControlFlow<(), ()> {
fn visit_ty(&mut self, ty: Ty<'tcx>) -> ControlFlow<()> {
debug!("visit_ty: ty={:?}", ty);
if !ty.has_param_types_or_consts() {
return ControlFlow::CONTINUE;

2
compiler/rustc_mir/src/util/pretty.rs
View File

@ -640,7 +640,7 @@ pub fn write_allocations<'tcx>(
}
struct CollectAllocIds(BTreeSet<AllocId>);
impl<'tcx> TypeVisitor<'tcx> for CollectAllocIds {
fn visit_const(&mut self, c: &'tcx ty::Const<'tcx>) -> ControlFlow<(), ()> {
fn visit_const(&mut self, c: &'tcx ty::Const<'tcx>) -> ControlFlow<()> {
if let ty::ConstKind::Value(val) = c.val {
self.0.extend(alloc_ids_from_const(val));
}

26
compiler/rustc_privacy/src/lib.rs
View File

@ -56,7 +56,7 @@ trait DefIdVisitor<'tcx> {
def_id: DefId,
kind: &str,
descr: &dyn fmt::Display,
) -> ControlFlow<(), ()>;
) -> ControlFlow<()>;
/// Not overridden, but used to actually visit types and traits.
fn skeleton(&mut self) -> DefIdVisitorSkeleton<'_, 'tcx, Self> {
@ -66,13 +66,13 @@ trait DefIdVisitor<'tcx> {
dummy: Default::default(),
}
}
fn visit(&mut self, ty_fragment: impl TypeFoldable<'tcx>) -> ControlFlow<(), ()> {
fn visit(&mut self, ty_fragment: impl TypeFoldable<'tcx>) -> ControlFlow<()> {
ty_fragment.visit_with(&mut self.skeleton())
}
fn visit_trait(&mut self, trait_ref: TraitRef<'tcx>) -> ControlFlow<(), ()> {
fn visit_trait(&mut self, trait_ref: TraitRef<'tcx>) -> ControlFlow<()> {
self.skeleton().visit_trait(trait_ref)
}
fn visit_predicates(&mut self, predicates: ty::GenericPredicates<'tcx>) -> ControlFlow<(), ()> {
fn visit_predicates(&mut self, predicates: ty::GenericPredicates<'tcx>) -> ControlFlow<()> {
self.skeleton().visit_predicates(predicates)
}
}
@ -87,13 +87,13 @@ impl<'tcx, V> DefIdVisitorSkeleton<'_, 'tcx, V>
where
V: DefIdVisitor<'tcx> + ?Sized,
{
fn visit_trait(&mut self, trait_ref: TraitRef<'tcx>) -> ControlFlow<(), ()> {
fn visit_trait(&mut self, trait_ref: TraitRef<'tcx>) -> ControlFlow<()> {
let TraitRef { def_id, substs } = trait_ref;
self.def_id_visitor.visit_def_id(def_id, "trait", &trait_ref.print_only_trait_path())?;
if self.def_id_visitor.shallow() { ControlFlow::CONTINUE } else { substs.visit_with(self) }
}
fn visit_predicate(&mut self, predicate: ty::Predicate<'tcx>) -> ControlFlow<(), ()> {
fn visit_predicate(&mut self, predicate: ty::Predicate<'tcx>) -> ControlFlow<()> {
match predicate.skip_binders() {
ty::PredicateAtom::Trait(ty::TraitPredicate { trait_ref }, _) => {
self.visit_trait(trait_ref)
@ -119,7 +119,7 @@ where
}
}
fn visit_predicates(&mut self, predicates: ty::GenericPredicates<'tcx>) -> ControlFlow<(), ()> {
fn visit_predicates(&mut self, predicates: ty::GenericPredicates<'tcx>) -> ControlFlow<()> {
let ty::GenericPredicates { parent: _, predicates } = predicates;
predicates.iter().try_for_each(|&(predicate, _span)| self.visit_predicate(predicate))
}
@ -129,7 +129,7 @@ impl<'tcx, V> TypeVisitor<'tcx> for DefIdVisitorSkeleton<'_, 'tcx, V>
where
V: DefIdVisitor<'tcx> + ?Sized,
{
fn visit_ty(&mut self, ty: Ty<'tcx>) -> ControlFlow<(), ()> {
fn visit_ty(&mut self, ty: Ty<'tcx>) -> ControlFlow<()> {
let tcx = self.def_id_visitor.tcx();
// InternalSubsts are not visited here because they are visited below in `super_visit_with`.
match *ty.kind() {
@ -283,7 +283,7 @@ impl<'a, 'tcx, VL: VisibilityLike> DefIdVisitor<'tcx> for FindMin<'a, 'tcx, VL>
def_id: DefId,
_kind: &str,
_descr: &dyn fmt::Display,
) -> ControlFlow<(), ()> {
) -> ControlFlow<()> {
self.min = VL::new_min(self, def_id);
ControlFlow::CONTINUE
}
@ -902,7 +902,7 @@ impl DefIdVisitor<'tcx> for ReachEverythingInTheInterfaceVisitor<'_, 'tcx> {
def_id: DefId,
_kind: &str,
_descr: &dyn fmt::Display,
) -> ControlFlow<(), ()> {
) -> ControlFlow<()> {
if let Some(def_id) = def_id.as_local() {
if let (ty::Visibility::Public, _) | (_, Some(AccessLevel::ReachableFromImplTrait)) =
(self.tcx().visibility(def_id.to_def_id()), self.access_level)
@ -1079,7 +1079,7 @@ impl<'tcx> TypePrivacyVisitor<'tcx> {
fn check_expr_pat_type(&mut self, id: hir::HirId, span: Span) -> bool {
self.span = span;
let typeck_results = self.typeck_results();
let result: ControlFlow<(), ()> = try {
let result: ControlFlow<()> = try {
self.visit(typeck_results.node_type(id))?;
self.visit(typeck_results.node_substs(id))?;
if let Some(adjustments) = typeck_results.adjustments().get(id) {
@ -1297,7 +1297,7 @@ impl DefIdVisitor<'tcx> for TypePrivacyVisitor<'tcx> {
def_id: DefId,
kind: &str,
descr: &dyn fmt::Display,
) -> ControlFlow<(), ()> {
) -> ControlFlow<()> {
if self.check_def_id(def_id, kind, descr) {
ControlFlow::BREAK
} else {
@ -1797,7 +1797,7 @@ impl DefIdVisitor<'tcx> for SearchInterfaceForPrivateItemsVisitor<'tcx> {
def_id: DefId,
kind: &str,
descr: &dyn fmt::Display,
) -> ControlFlow<(), ()> {
) -> ControlFlow<()> {
if self.check_def_id(def_id, kind, descr) {
ControlFlow::BREAK
} else {

6
compiler/rustc_trait_selection/src/opaque_types.rs
View File

@ -693,12 +693,12 @@ impl<'tcx, OP> TypeVisitor<'tcx> for ConstrainOpaqueTypeRegionVisitor<OP>
where
OP: FnMut(ty::Region<'tcx>),
{
fn visit_binder<T: TypeFoldable<'tcx>>(&mut self, t: &ty::Binder<T>) -> ControlFlow<(), ()> {
fn visit_binder<T: TypeFoldable<'tcx>>(&mut self, t: &ty::Binder<T>) -> ControlFlow<()> {
t.as_ref().skip_binder().visit_with(self);
ControlFlow::CONTINUE
}
fn visit_region(&mut self, r: ty::Region<'tcx>) -> ControlFlow<(), ()> {
fn visit_region(&mut self, r: ty::Region<'tcx>) -> ControlFlow<()> {
match *r {
// ignore bound regions, keep visiting
ty::ReLateBound(_, _) => ControlFlow::CONTINUE,
@ -709,7 +709,7 @@ where
}
}
fn visit_ty(&mut self, ty: Ty<'tcx>) -> ControlFlow<(), ()> {
fn visit_ty(&mut self, ty: Ty<'tcx>) -> ControlFlow<()> {
// We're only interested in types involving regions
if !ty.flags().intersects(ty::TypeFlags::HAS_FREE_REGIONS) {
return ControlFlow::CONTINUE;

8
compiler/rustc_trait_selection/src/traits/const_evaluatable.rs
View File

@ -571,15 +571,15 @@ pub fn walk_abstract_const<'tcx, F>(
tcx: TyCtxt<'tcx>,
ct: AbstractConst<'tcx>,
mut f: F,
) -> ControlFlow<(), ()>
) -> ControlFlow<()>
where
F: FnMut(Node<'tcx>) -> ControlFlow<(), ()>,
F: FnMut(Node<'tcx>) -> ControlFlow<()>,
{
fn recurse<'tcx>(
tcx: TyCtxt<'tcx>,
ct: AbstractConst<'tcx>,
f: &mut dyn FnMut(Node<'tcx>) -> ControlFlow<(), ()>,
) -> ControlFlow<(), ()> {
f: &mut dyn FnMut(Node<'tcx>) -> ControlFlow<()>,
) -> ControlFlow<()> {
let root = ct.root();
f(root)?;
match root {

6
compiler/rustc_trait_selection/src/traits/object_safety.rs
View File

@ -771,7 +771,7 @@ fn contains_illegal_self_type_reference<'tcx, T: TypeFoldable<'tcx>>(
}
impl<'tcx> TypeVisitor<'tcx> for IllegalSelfTypeVisitor<'tcx> {
fn visit_ty(&mut self, t: Ty<'tcx>) -> ControlFlow<(), ()> {
fn visit_ty(&mut self, t: Ty<'tcx>) -> ControlFlow<()> {
match t.kind() {
ty::Param(_) => {
if t == self.tcx.types.self_param {
@ -812,7 +812,7 @@ fn contains_illegal_self_type_reference<'tcx, T: TypeFoldable<'tcx>>(
}
}
fn visit_const(&mut self, ct: &ty::Const<'tcx>) -> ControlFlow<(), ()> {
fn visit_const(&mut self, ct: &ty::Const<'tcx>) -> ControlFlow<()> {
// First check if the type of this constant references `Self`.
self.visit_ty(ct.ty)?;
@ -844,7 +844,7 @@ fn contains_illegal_self_type_reference<'tcx, T: TypeFoldable<'tcx>>(
}
}
fn visit_predicate(&mut self, pred: ty::Predicate<'tcx>) -> ControlFlow<(), ()> {
fn visit_predicate(&mut self, pred: ty::Predicate<'tcx>) -> ControlFlow<()> {
if let ty::PredicateAtom::ConstEvaluatable(def, substs) = pred.skip_binders() {
// FIXME(const_evaluatable_checked): We should probably deduplicate the logic for
// `AbstractConst`s here, it might make sense to change `ConstEvaluatable` to

2
compiler/rustc_trait_selection/src/traits/structural_match.rs
View File

@ -135,7 +135,7 @@ impl Search<'a, 'tcx> {
}
impl<'a, 'tcx> TypeVisitor<'tcx> for Search<'a, 'tcx> {
fn visit_ty(&mut self, ty: Ty<'tcx>) -> ControlFlow<(), ()> {
fn visit_ty(&mut self, ty: Ty<'tcx>) -> ControlFlow<()> {
debug!("Search visiting ty: {:?}", ty);
let (adt_def, substs) = match *ty.kind() {

10
compiler/rustc_traits/src/chalk/lowering.rs
View File

@ -898,14 +898,14 @@ impl<'tcx> BoundVarsCollector<'tcx> {
}
impl<'tcx> TypeVisitor<'tcx> for BoundVarsCollector<'tcx> {
fn visit_binder<T: TypeFoldable<'tcx>>(&mut self, t: &Binder<T>) -> ControlFlow<(), ()> {
fn visit_binder<T: TypeFoldable<'tcx>>(&mut self, t: &Binder<T>) -> ControlFlow<()> {
self.binder_index.shift_in(1);
let result = t.super_visit_with(self);
self.binder_index.shift_out(1);
result
}
fn visit_ty(&mut self, t: Ty<'tcx>) -> ControlFlow<(), ()> {
fn visit_ty(&mut self, t: Ty<'tcx>) -> ControlFlow<()> {
match *t.kind() {
ty::Bound(debruijn, bound_ty) if debruijn == self.binder_index => {
match self.parameters.entry(bound_ty.var.as_u32()) {
@ -925,7 +925,7 @@ impl<'tcx> TypeVisitor<'tcx> for BoundVarsCollector<'tcx> {
t.super_visit_with(self)
}
fn visit_region(&mut self, r: Region<'tcx>) -> ControlFlow<(), ()> {
fn visit_region(&mut self, r: Region<'tcx>) -> ControlFlow<()> {
match r {
ty::ReLateBound(index, br) if *index == self.binder_index => match br {
ty::BoundRegion::BrNamed(def_id, _name) => {
@ -1115,7 +1115,7 @@ impl PlaceholdersCollector {
}
impl<'tcx> TypeVisitor<'tcx> for PlaceholdersCollector {
fn visit_ty(&mut self, t: Ty<'tcx>) -> ControlFlow<(), ()> {
fn visit_ty(&mut self, t: Ty<'tcx>) -> ControlFlow<()> {
match t.kind() {
ty::Placeholder(p) if p.universe == self.universe_index => {
self.next_ty_placeholder = self.next_ty_placeholder.max(p.name.as_usize() + 1);
@ -1127,7 +1127,7 @@ impl<'tcx> TypeVisitor<'tcx> for PlaceholdersCollector {
t.super_visit_with(self)
}
fn visit_region(&mut self, r: Region<'tcx>) -> ControlFlow<(), ()> {
fn visit_region(&mut self, r: Region<'tcx>) -> ControlFlow<()> {
match r {
ty::RePlaceholder(p) if p.universe == self.universe_index => {
if let ty::BoundRegion::BrAnon(anon) = p.name {

8
compiler/rustc_typeck/src/check/check.rs
View File

@ -450,7 +450,7 @@ pub(super) fn check_opaque_for_inheriting_lifetimes(
};
impl<'tcx> ty::fold::TypeVisitor<'tcx> for ProhibitOpaqueVisitor<'tcx> {
fn visit_ty(&mut self, t: Ty<'tcx>) -> ControlFlow<(), ()> {
fn visit_ty(&mut self, t: Ty<'tcx>) -> ControlFlow<()> {
debug!("check_opaque_for_inheriting_lifetimes: (visit_ty) t={:?}", t);
if t != self.opaque_identity_ty && t.super_visit_with(self).is_break() {
self.ty = Some(t);
@ -459,7 +459,7 @@ pub(super) fn check_opaque_for_inheriting_lifetimes(
ControlFlow::CONTINUE
}
fn visit_region(&mut self, r: ty::Region<'tcx>) -> ControlFlow<(), ()> {
fn visit_region(&mut self, r: ty::Region<'tcx>) -> ControlFlow<()> {
debug!("check_opaque_for_inheriting_lifetimes: (visit_region) r={:?}", r);
if let RegionKind::ReEarlyBound(ty::EarlyBoundRegion { index, .. }) = r {
if *index < self.generics.parent_count as u32 {
@ -472,7 +472,7 @@ pub(super) fn check_opaque_for_inheriting_lifetimes(
r.super_visit_with(self)
}
fn visit_const(&mut self, c: &'tcx ty::Const<'tcx>) -> ControlFlow<(), ()> {
fn visit_const(&mut self, c: &'tcx ty::Const<'tcx>) -> ControlFlow<()> {
if let ty::ConstKind::Unevaluated(..) = c.val {
// FIXME(#72219) We currenctly don't detect lifetimes within substs
// which would violate this check. Even though the particular substitution is not used
@ -1455,7 +1455,7 @@ fn opaque_type_cycle_error(tcx: TyCtxt<'tcx>, def_id: LocalDefId, span: Span) {
{
struct VisitTypes(Vec<DefId>);
impl<'tcx> ty::fold::TypeVisitor<'tcx> for VisitTypes {
fn visit_ty(&mut self, t: Ty<'tcx>) -> ControlFlow<(), ()> {
fn visit_ty(&mut self, t: Ty<'tcx>) -> ControlFlow<()> {
match *t.kind() {
ty::Opaque(def, _) => {
self.0.push(def);

2
compiler/rustc_typeck/src/check/op.rs
View File

@ -983,7 +983,7 @@ fn suggest_constraining_param(
struct TypeParamVisitor<'tcx>(Vec<Ty<'tcx>>);
impl<'tcx> TypeVisitor<'tcx> for TypeParamVisitor<'tcx> {
fn visit_ty(&mut self, ty: Ty<'tcx>) -> ControlFlow<(), ()> {
fn visit_ty(&mut self, ty: Ty<'tcx>) -> ControlFlow<()> {
if let ty::Param(_) = ty.kind() {
self.0.push(ty);
}

6
compiler/rustc_typeck/src/check/wfcheck.rs
View File

@ -800,18 +800,18 @@ fn check_where_clauses<'tcx, 'fcx>(
params: FxHashSet<u32>,
}
impl<'tcx> ty::fold::TypeVisitor<'tcx> for CountParams {
fn visit_ty(&mut self, t: Ty<'tcx>) -> ControlFlow<(), ()> {
fn visit_ty(&mut self, t: Ty<'tcx>) -> ControlFlow<()> {
if let ty::Param(param) = t.kind() {
self.params.insert(param.index);
}
t.super_visit_with(self)
}
fn visit_region(&mut self, _: ty::Region<'tcx>) -> ControlFlow<(), ()> {
fn visit_region(&mut self, _: ty::Region<'tcx>) -> ControlFlow<()> {
ControlFlow::BREAK
}
fn visit_const(&mut self, c: &'tcx ty::Const<'tcx>) -> ControlFlow<(), ()> {
fn visit_const(&mut self, c: &'tcx ty::Const<'tcx>) -> ControlFlow<()> {
if let ty::ConstKind::Param(param) = c.val {
self.params.insert(param.index);
}

2
compiler/rustc_typeck/src/collect.rs
View File

@ -2062,7 +2062,7 @@ fn const_evaluatable_predicates_of<'tcx>(
}
impl<'a, 'tcx> TypeVisitor<'tcx> for TyAliasVisitor<'a, 'tcx> {
fn visit_const(&mut self, ct: &'tcx Const<'tcx>) -> ControlFlow<(), ()> {
fn visit_const(&mut self, ct: &'tcx Const<'tcx>) -> ControlFlow<()> {
if let ty::ConstKind::Unevaluated(def, substs, None) = ct.val {
self.preds.insert((
ty::PredicateAtom::ConstEvaluatable(def, substs).to_predicate(self.tcx),

6
compiler/rustc_typeck/src/constrained_generic_params.rs
View File

@ -57,7 +57,7 @@ struct ParameterCollector {
}
impl<'tcx> TypeVisitor<'tcx> for ParameterCollector {
fn visit_ty(&mut self, t: Ty<'tcx>) -> ControlFlow<(), ()> {
fn visit_ty(&mut self, t: Ty<'tcx>) -> ControlFlow<()> {
match *t.kind() {
ty::Projection(..) | ty::Opaque(..) if !self.include_nonconstraining => {
// projections are not injective
@ -72,14 +72,14 @@ impl<'tcx> TypeVisitor<'tcx> for ParameterCollector {
t.super_visit_with(self)
}
fn visit_region(&mut self, r: ty::Region<'tcx>) -> ControlFlow<(), ()> {
fn visit_region(&mut self, r: ty::Region<'tcx>) -> ControlFlow<()> {
if let ty::ReEarlyBound(data) = *r {
self.parameters.push(Parameter::from(data));
}
ControlFlow::CONTINUE
}
fn visit_const(&mut self, c: &'tcx ty::Const<'tcx>) -> ControlFlow<(), ()> {
fn visit_const(&mut self, c: &'tcx ty::Const<'tcx>) -> ControlFlow<()> {
match c.val {
ty::ConstKind::Unevaluated(..) if !self.include_nonconstraining => {
// Constant expressions are not injective

2
src/tools/clippy/clippy_lints/src/redundant_clone.rs
View File

@ -559,7 +559,7 @@ impl<'a, 'tcx> mir::visit::Visitor<'tcx> for PossibleBorrowerVisitor<'a, 'tcx> {
struct ContainsRegion;
impl TypeVisitor<'_> for ContainsRegion {
fn visit_region(&mut self, _: ty::Region<'_>) -> ControlFlow<(), ()> {
fn visit_region(&mut self, _: ty::Region<'_>) -> ControlFlow<()> {
ControlFlow::BREAK
}
}