Rename ast_* local variables to hir_*

Author: fmease

compiler/rustc_hir_analysis/src/astconv/bounds.rs

@@ -22,7 +22,7 @@ impl<'tcx> dyn HirTyLowerer<'tcx> + '_ {
         &self,
         bounds: &mut Bounds<'tcx>,
         self_ty: Ty<'tcx>,
-        ast_bounds: &'tcx [hir::GenericBound<'tcx>],
+        hir_bounds: &'tcx [hir::GenericBound<'tcx>],
         self_ty_where_predicates: Option<(LocalDefId, &'tcx [hir::WherePredicate<'tcx>])>,
         span: Span,
     ) {
@@ -33,9 +33,9 @@ impl<'tcx> dyn HirTyLowerer<'tcx> + '_ {
 
         // Try to find an unbound in bounds.
         let mut unbounds: SmallVec<[_; 1]> = SmallVec::new();
-        let mut search_bounds = |ast_bounds: &'tcx [hir::GenericBound<'tcx>]| {
-            for ab in ast_bounds {
-                let hir::GenericBound::Trait(ptr, modifier) = ab else {
+        let mut search_bounds = |hir_bounds: &'tcx [hir::GenericBound<'tcx>]| {
+            for hir_bound in hir_bounds {
+                let hir::GenericBound::Trait(ptr, modifier) = hir_bound else {
                     continue;
                 };
                 match modifier {
@@ -58,7 +58,7 @@ impl<'tcx> dyn HirTyLowerer<'tcx> + '_ {
                 }
             }
         };
-        search_bounds(ast_bounds);
+        search_bounds(hir_bounds);
         if let Some((self_ty, where_clause)) = self_ty_where_predicates {
             for clause in where_clause {
                 if let hir::WherePredicate::BoundPredicate(pred) = clause
@@ -105,27 +105,27 @@ impl<'tcx> dyn HirTyLowerer<'tcx> + '_ {
     ///
     /// ```text
     /// fn foo<T: Debug>
-    ///        ^  ^^^^^ `ast_bounds` parameter, in HIR form
+    ///        ^  ^^^^^ `hir_bounds` parameter, in HIR form
     ///        |
     ///        `param_ty`, in ty form
     /// ```
     ///
     /// **A note on binders:** there is an implied binder around
-    /// `param_ty` and `ast_bounds`. See `instantiate_poly_trait_ref`
+    /// `param_ty` and `hir_bounds`. See `instantiate_poly_trait_ref`
     /// for more details.
-    #[instrument(level = "debug", skip(self, ast_bounds, bounds))]
+    #[instrument(level = "debug", skip(self, hir_bounds, bounds))]
     pub(crate) fn add_bounds<'hir, I: Iterator<Item = &'hir hir::GenericBound<'tcx>>>(
         &self,
         param_ty: Ty<'tcx>,
-        ast_bounds: I,
+        hir_bounds: I,
         bounds: &mut Bounds<'tcx>,
         bound_vars: &'tcx ty::List<ty::BoundVariableKind>,
         only_self_bounds: OnlySelfBounds,
     ) where
         'tcx: 'hir,
     {
-        for ast_bound in ast_bounds {
-            match ast_bound {
+        for hir_bound in hir_bounds {
+            match hir_bound {
                 hir::GenericBound::Trait(poly_trait_ref, modifier) => {
                     let (constness, polarity) = match modifier {
                         hir::TraitBoundModifier::Const => {
@@ -175,7 +175,7 @@ impl<'tcx> dyn HirTyLowerer<'tcx> + '_ {
     ///
     /// ```ignore (illustrative)
     /// fn foo<T: Bar + Baz>() { }
-    /// //     ^  ^^^^^^^^^ ast_bounds
+    /// //     ^  ^^^^^^^^^ hir_bounds
     /// //     param_ty
     /// ```
     ///
@@ -187,7 +187,7 @@ impl<'tcx> dyn HirTyLowerer<'tcx> + '_ {
     pub(crate) fn compute_bounds(
         &self,
         param_ty: Ty<'tcx>,
-        ast_bounds: &[hir::GenericBound<'tcx>],
+        hir_bounds: &[hir::GenericBound<'tcx>],
         filter: PredicateFilter,
     ) -> Bounds<'tcx> {
         let mut bounds = Bounds::default();
@@ -201,7 +201,7 @@ impl<'tcx> dyn HirTyLowerer<'tcx> + '_ {
 
         self.add_bounds(
             param_ty,
-            ast_bounds.iter().filter(|bound| match filter {
+            hir_bounds.iter().filter(|bound| match filter {
                 PredicateFilter::All
                 | PredicateFilter::SelfOnly
                 | PredicateFilter::SelfAndAssociatedTypeBounds => true,
@@ -488,7 +488,7 @@ impl<'tcx> dyn HirTyLowerer<'tcx> + '_ {
                     binding.span,
                 );
             }
-            LoweredBindingKind::Constraint(ast_bounds) => {
+            LoweredBindingKind::Constraint(hir_bounds) => {
                 // "Desugar" a constraint like `T: Iterator<Item: Debug>` to
                 //
                 // `<T as Iterator>::Item: Debug`
@@ -503,7 +503,7 @@ impl<'tcx> dyn HirTyLowerer<'tcx> + '_ {
                     let param_ty = Ty::new_alias(tcx, ty::Projection, projection_ty.skip_binder());
                     self.add_bounds(
                         param_ty,
-                        ast_bounds.iter(),
+                        hir_bounds.iter(),
                         bounds,
                         projection_ty.bound_vars(),
                         only_self_bounds,

compiler/rustc_hir_analysis/src/astconv/mod.rs

@@ -2299,14 +2299,14 @@ impl<'o, 'tcx> dyn HirTyLowerer<'tcx> + 'o {
 
     /// Parses the programmer's textual representation of a type into our
     /// internal notion of a type.
-    pub fn lower_ty(&self, ast_ty: &hir::Ty<'tcx>) -> Ty<'tcx> {
-        self.lower_ty_inner(ast_ty, false, false)
+    pub fn lower_ty(&self, hir_ty: &hir::Ty<'tcx>) -> Ty<'tcx> {
+        self.lower_ty_inner(hir_ty, false, false)
     }
 
     /// Parses the programmer's textual representation of a type into our
     /// internal notion of a type. This is meant to be used within a path.
-    pub fn lower_ty_in_path(&self, ast_ty: &hir::Ty<'tcx>) -> Ty<'tcx> {
-        self.lower_ty_inner(ast_ty, false, true)
+    pub fn lower_ty_in_path(&self, hir_ty: &hir::Ty<'tcx>) -> Ty<'tcx> {
+        self.lower_ty_inner(hir_ty, false, true)
     }
 
     fn check_delegation_constraints(&self, sig_id: DefId, span: Span, emit: bool) -> bool {
@@ -2422,12 +2422,12 @@ impl<'o, 'tcx> dyn HirTyLowerer<'tcx> + 'o {
     /// For diagnostics' purposes we keep track of whether trait objects are
     /// borrowed like `&dyn Trait` to avoid emitting redundant errors.
     #[instrument(level = "debug", skip(self), ret)]
-    fn lower_ty_inner(&self, ast_ty: &hir::Ty<'tcx>, borrowed: bool, in_path: bool) -> Ty<'tcx> {
+    fn lower_ty_inner(&self, hir_ty: &hir::Ty<'tcx>, borrowed: bool, in_path: bool) -> Ty<'tcx> {
         let tcx = self.tcx();
 
-        let result_ty = match &ast_ty.kind {
+        let result_ty = match &hir_ty.kind {
             hir::TyKind::InferDelegation(sig_id, idx) => {
-                self.lower_delegation_ty(*sig_id, *idx, ast_ty.span)
+                self.lower_delegation_ty(*sig_id, *idx, hir_ty.span)
             }
             hir::TyKind::Slice(ty) => Ty::new_slice(tcx, self.lower_ty(ty)),
             hir::TyKind::Ptr(mt) => {
@@ -2444,30 +2444,30 @@ impl<'o, 'tcx> dyn HirTyLowerer<'tcx> + 'o {
                 Ty::new_tup_from_iter(tcx, fields.iter().map(|t| self.lower_ty(t)))
             }
             hir::TyKind::BareFn(bf) => {
-                require_c_abi_if_c_variadic(tcx, bf.decl, bf.abi, ast_ty.span);
+                require_c_abi_if_c_variadic(tcx, bf.decl, bf.abi, hir_ty.span);
 
                 Ty::new_fn_ptr(
                     tcx,
                     self.lower_fn_ty(
-                        ast_ty.hir_id,
+                        hir_ty.hir_id,
                         bf.unsafety,
                         bf.abi,
                         bf.decl,
                         None,
-                        Some(ast_ty),
+                        Some(hir_ty),
                     ),
                 )
             }
             hir::TyKind::TraitObject(bounds, lifetime, repr) => {
-                self.maybe_lint_bare_trait(ast_ty, in_path);
+                self.maybe_lint_bare_trait(hir_ty, in_path);
                 let repr = match repr {
                     TraitObjectSyntax::Dyn | TraitObjectSyntax::None => ty::Dyn,
                     TraitObjectSyntax::DynStar => ty::DynStar,
                 };
 
                 self.lower_object_ty_to_poly_trait_ref(
-                    ast_ty.span,
-                    ast_ty.hir_id,
+                    hir_ty.span,
+                    hir_ty.hir_id,
                     bounds,
                     lifetime,
                     borrowed,
@@ -2477,7 +2477,7 @@ impl<'o, 'tcx> dyn HirTyLowerer<'tcx> + 'o {
             hir::TyKind::Path(hir::QPath::Resolved(maybe_qself, path)) => {
                 debug!(?maybe_qself, ?path);
                 let opt_self_ty = maybe_qself.as_ref().map(|qself| self.lower_ty(qself));
-                self.lower_res_to_ty(opt_self_ty, path, ast_ty.hir_id, false)
+                self.lower_res_to_ty(opt_self_ty, path, hir_ty.hir_id, false)
             }
             &hir::TyKind::OpaqueDef(item_id, lifetimes, in_trait) => {
                 let opaque_ty = tcx.hir().item(item_id);
@@ -2501,7 +2501,7 @@ impl<'o, 'tcx> dyn HirTyLowerer<'tcx> + 'o {
             hir::TyKind::Path(hir::QPath::TypeRelative(qself, segment)) => {
                 debug!(?qself, ?segment);
                 let ty = self.lower_ty_inner(qself, false, true);
-                self.lower_assoc_path_to_ty(ast_ty.hir_id, ast_ty.span, ty, qself, segment, false)
+                self.lower_assoc_path_to_ty(hir_ty.hir_id, hir_ty.span, ty, qself, segment, false)
                     .map(|(ty, _, _)| ty)
                     .unwrap_or_else(|guar| Ty::new_error(tcx, guar))
             }
@@ -2535,12 +2535,12 @@ impl<'o, 'tcx> dyn HirTyLowerer<'tcx> + 'o {
                 // values in an ExprKind::Closure, or as
                 // the type of local variables. Both of these cases are
                 // handled specially and will not descend into this routine.
-                self.ty_infer(None, ast_ty.span)
+                self.ty_infer(None, hir_ty.span)
             }
             hir::TyKind::Err(guar) => Ty::new_error(tcx, *guar),
         };
 
-        self.record_ty(ast_ty.hir_id, result_ty, ast_ty.span);
+        self.record_ty(hir_ty.hir_id, result_ty, hir_ty.span);
         result_ty
     }
 

compiler/rustc_hir_analysis/src/check/wfcheck.rs

@@ -295,31 +295,31 @@ fn check_item<'tcx>(tcx: TyCtxt<'tcx>, item: &'tcx hir::Item<'tcx>) -> Result<()
         hir::ItemKind::Const(ty, ..) => {
             check_item_type(tcx, def_id, ty.span, UnsizedHandling::Forbid)
         }
-        hir::ItemKind::Struct(_, ast_generics) => {
+        hir::ItemKind::Struct(_, hir_generics) => {
             let res = check_type_defn(tcx, item, false);
-            check_variances_for_type_defn(tcx, item, ast_generics);
+            check_variances_for_type_defn(tcx, item, hir_generics);
             res
         }
-        hir::ItemKind::Union(_, ast_generics) => {
+        hir::ItemKind::Union(_, hir_generics) => {
             let res = check_type_defn(tcx, item, true);
-            check_variances_for_type_defn(tcx, item, ast_generics);
+            check_variances_for_type_defn(tcx, item, hir_generics);
             res
         }
-        hir::ItemKind::Enum(_, ast_generics) => {
+        hir::ItemKind::Enum(_, hir_generics) => {
             let res = check_type_defn(tcx, item, true);
-            check_variances_for_type_defn(tcx, item, ast_generics);
+            check_variances_for_type_defn(tcx, item, hir_generics);
             res
         }
         hir::ItemKind::Trait(..) => check_trait(tcx, item),
         hir::ItemKind::TraitAlias(..) => check_trait(tcx, item),
         // `ForeignItem`s are handled separately.
         hir::ItemKind::ForeignMod { .. } => Ok(()),
-        hir::ItemKind::TyAlias(hir_ty, ast_generics) => {
+        hir::ItemKind::TyAlias(hir_ty, hir_generics) => {
             if tcx.type_alias_is_lazy(item.owner_id) {
                 // Bounds of lazy type aliases and of eager ones that contain opaque types are respected.
                 // E.g: `type X = impl Trait;`, `type X = (impl Trait, Y);`.
                 let res = check_item_type(tcx, def_id, hir_ty.span, UnsizedHandling::Allow);
-                check_variances_for_type_defn(tcx, item, ast_generics);
+                check_variances_for_type_defn(tcx, item, hir_generics);
                 res
             } else {
                 Ok(())
@@ -1282,16 +1282,16 @@ fn check_item_type(
     })
 }
 
-#[instrument(level = "debug", skip(tcx, ast_self_ty, ast_trait_ref))]
+#[instrument(level = "debug", skip(tcx, hir_self_ty, hir_trait_ref))]
 fn check_impl<'tcx>(
     tcx: TyCtxt<'tcx>,
     item: &'tcx hir::Item<'tcx>,
-    ast_self_ty: &hir::Ty<'_>,
-    ast_trait_ref: &Option<hir::TraitRef<'_>>,
+    hir_self_ty: &hir::Ty<'_>,
+    hir_trait_ref: &Option<hir::TraitRef<'_>>,
 ) -> Result<(), ErrorGuaranteed> {
     enter_wf_checking_ctxt(tcx, item.span, item.owner_id.def_id, |wfcx| {
-        match ast_trait_ref {
-            Some(ast_trait_ref) => {
+        match hir_trait_ref {
+            Some(hir_trait_ref) => {
                 // `#[rustc_reservation_impl]` impls are not real impls and
                 // therefore don't need to be WF (the trait's `Self: Trait` predicate
                 // won't hold).
@@ -1300,7 +1300,7 @@ fn check_impl<'tcx>(
                 // other `Foo` impls are incoherent.
                 tcx.ensure().coherent_trait(trait_ref.def_id)?;
                 let trait_ref = wfcx.normalize(
-                    ast_trait_ref.path.span,
+                    hir_trait_ref.path.span,
                     Some(WellFormedLoc::Ty(item.hir_id().expect_owner().def_id)),
                     trait_ref,
                 );
@@ -1311,14 +1311,14 @@ fn check_impl<'tcx>(
                     wfcx.param_env,
                     wfcx.body_def_id,
                     trait_pred,
-                    ast_trait_ref.path.span,
+                    hir_trait_ref.path.span,
                     item,
                 );
                 for obligation in &mut obligations {
                     if let Some(pred) = obligation.predicate.to_opt_poly_trait_pred()
                         && pred.self_ty().skip_binder() == trait_ref.self_ty()
                     {
-                        obligation.cause.span = ast_self_ty.span;
+                        obligation.cause.span = hir_self_ty.span;
                     }
                 }
                 debug!(?obligations);
@@ -1332,7 +1332,7 @@ fn check_impl<'tcx>(
                     self_ty,
                 );
                 wfcx.register_wf_obligation(
-                    ast_self_ty.span,
+                    hir_self_ty.span,
                     Some(WellFormedLoc::Ty(item.hir_id().expect_owner().def_id)),
                     self_ty.into(),
                 );