Remove implicit Continue type

rust-lang · Oct 30, 2020 · 9433eb8 · 9433eb8
1 parent 24e1a7e
commit 9433eb8
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Showing 30 changed files with 129 additions and 135 deletions.
diff --git a/compiler/rustc_infer/src/infer/error_reporting/mod.rs b/compiler/rustc_infer/src/infer/error_reporting/mod.rs
@@ -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:

diff --git a/compiler/rustc_infer/src/infer/error_reporting/nice_region_error/static_impl_trait.rs b/compiler/rustc_infer/src/infer/error_reporting/nice_region_error/static_impl_trait.rs
@@ -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() {

diff --git a/compiler/rustc_infer/src/infer/nll_relate/mod.rs b/compiler/rustc_infer/src/infer/nll_relate/mod.rs
@@ -741,15 +741,15 @@ 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);
 
         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 {

diff --git a/compiler/rustc_infer/src/infer/resolve.rs b/compiler/rustc_infer/src/infer/resolve.rs
@@ -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() {

diff --git a/compiler/rustc_infer/src/traits/structural_impls.rs b/compiler/rustc_infer/src/traits/structural_impls.rs
@@ -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)
     }
 }
diff --git a/compiler/rustc_lint/src/types.rs b/compiler/rustc_lint/src/types.rs
@@ -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);

diff --git a/compiler/rustc_macros/src/type_foldable.rs b/compiler/rustc_macros/src/type_foldable.rs
@@ -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
             }

diff --git a/compiler/rustc_middle/src/macros.rs b/compiler/rustc_middle/src/macros.rs
@@ -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())
             }
         }

diff --git a/compiler/rustc_middle/src/mir/mod.rs b/compiler/rustc_middle/src/mir/mod.rs
@@ -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.
     }

diff --git a/compiler/rustc_middle/src/mir/type_foldable.rs b/compiler/rustc_middle/src/mir/type_foldable.rs
@@ -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)
     }
 }