Rename rustc_middle path cleaning functions

The new names are consistent with the other rustc_middle cleaning functions.
Regarding the local variable `ty_args`, it's used throughout the function and
personally speaking its name isn't very legible, I trip up on it.

src/librustdoc/clean/mod.rs

@@ -207,8 +207,13 @@ pub(crate) fn clean_trait_ref_with_bindings<'tcx>(
         span_bug!(cx.tcx.def_span(trait_ref.def_id()), "`TraitRef` had unexpected kind {kind:?}");
     }
     inline::record_extern_fqn(cx, trait_ref.def_id(), kind);
-    let path =
-        external_path(cx, trait_ref.def_id(), true, bindings, trait_ref.map_bound(|tr| tr.args));
+    let path = clean_middle_path(
+        cx,
+        trait_ref.def_id(),
+        true,
+        bindings,
+        trait_ref.map_bound(|tr| tr.args),
+    );
 
     debug!(?trait_ref);
 
@@ -467,7 +472,7 @@ fn projection_to_path_segment<'tcx>(
     PathSegment {
         name: item.name,
         args: GenericArgs::AngleBracketed {
-            args: ty_args_to_args(
+            args: clean_middle_generic_args(
                 cx,
                 ty.map_bound(|ty| &ty.args[generics.parent_count..]),
                 false,
@@ -2096,12 +2101,12 @@ pub(crate) fn clean_middle_ty<'tcx>(
                 AdtKind::Enum => ItemType::Enum,
             };
             inline::record_extern_fqn(cx, did, kind);
-            let path = external_path(cx, did, false, ThinVec::new(), bound_ty.rebind(args));
+            let path = clean_middle_path(cx, did, false, ThinVec::new(), bound_ty.rebind(args));
             Type::Path { path }
         }
         ty::Foreign(did) => {
             inline::record_extern_fqn(cx, did, ItemType::ForeignType);
-            let path = external_path(
+            let path = clean_middle_path(
                 cx,
                 did,
                 false,
@@ -2132,7 +2137,7 @@ pub(crate) fn clean_middle_ty<'tcx>(
             let mut bounds = dids
                 .map(|did| {
                     let empty = ty::Binder::dummy(ty::GenericArgs::empty());
-                    let path = external_path(cx, did, false, ThinVec::new(), empty);
+                    let path = clean_middle_path(cx, did, false, ThinVec::new(), empty);
                     inline::record_extern_fqn(cx, did, ItemType::Trait);
                     PolyTrait { trait_: path, generic_params: Vec::new() }
                 })
@@ -2171,7 +2176,7 @@ pub(crate) fn clean_middle_ty<'tcx>(
                 .collect();
             let late_bound_regions = late_bound_regions.into_iter().collect();
 
-            let path = external_path(cx, did, false, bindings, args);
+            let path = clean_middle_path(cx, did, false, bindings, args);
             bounds.insert(0, PolyTrait { trait_: path, generic_params: late_bound_regions });
 
             DynTrait(bounds, lifetime)
@@ -2193,7 +2198,7 @@ pub(crate) fn clean_middle_ty<'tcx>(
                 assoc: PathSegment {
                     name: cx.tcx.associated_item(def_id).name,
                     args: GenericArgs::AngleBracketed {
-                        args: ty_args_to_args(
+                        args: clean_middle_generic_args(
                             cx,
                             alias_ty.map_bound(|ty| ty.args.as_slice()),
                             true,
@@ -2213,7 +2218,7 @@ pub(crate) fn clean_middle_ty<'tcx>(
             if cx.tcx.features().lazy_type_alias {
                 // Weak type alias `data` represents the `type X` in `type X = Y`. If we need `Y`,
                 // we need to use `type_of`.
-                let path = external_path(
+                let path = clean_middle_path(
                     cx,
                     data.def_id,
                     false,
@@ -2243,7 +2248,8 @@ pub(crate) fn clean_middle_ty<'tcx>(
         ty::Alias(ty::Opaque, ty::AliasTy { def_id, args, .. }) => {
             // If it's already in the same alias, don't get an infinite loop.
             if cx.current_type_aliases.contains_key(&def_id) {
-                let path = external_path(cx, def_id, false, ThinVec::new(), bound_ty.rebind(args));
+                let path =
+                    clean_middle_path(cx, def_id, false, ThinVec::new(), bound_ty.rebind(args));
                 Type::Path { path }
             } else {
                 *cx.current_type_aliases.entry(def_id).or_insert(0) += 1;

src/librustdoc/clean/types.rs

@@ -36,7 +36,7 @@ use rustc_target::abi::VariantIdx;
 use rustc_target::spec::abi::Abi;
 
 use crate::clean::cfg::Cfg;
-use crate::clean::external_path;
+use crate::clean::clean_middle_path;
 use crate::clean::inline::{self, print_inlined_const};
 use crate::clean::utils::{is_literal_expr, print_evaluated_const};
 use crate::core::DocContext;
@@ -1258,7 +1258,7 @@ impl GenericBound {
     fn sized_with(cx: &mut DocContext<'_>, modifier: hir::TraitBoundModifier) -> GenericBound {
         let did = cx.tcx.require_lang_item(LangItem::Sized, None);
         let empty = ty::Binder::dummy(ty::GenericArgs::empty());
-        let path = external_path(cx, did, false, ThinVec::new(), empty);
+        let path = clean_middle_path(cx, did, false, ThinVec::new(), empty);
         inline::record_extern_fqn(cx, did, ItemType::Trait);
         GenericBound::TraitBound(PolyTrait { trait_: path, generic_params: Vec::new() }, modifier)
     }

src/librustdoc/clean/utils.rs

@@ -75,13 +75,13 @@ pub(crate) fn krate(cx: &mut DocContext<'_>) -> Crate {
     Crate { module, external_traits: cx.external_traits.clone() }
 }
 
-pub(crate) fn ty_args_to_args<'tcx>(
+pub(crate) fn clean_middle_generic_args<'tcx>(
     cx: &mut DocContext<'tcx>,
-    ty_args: ty::Binder<'tcx, &'tcx [ty::GenericArg<'tcx>]>,
+    args: ty::Binder<'tcx, &'tcx [ty::GenericArg<'tcx>]>,
     has_self: bool,
     owner: DefId,
 ) -> Vec<GenericArg> {
-    if ty_args.skip_binder().is_empty() {
+    if args.skip_binder().is_empty() {
         // Fast path which avoids executing the query `generics_of`.
         return Vec::new();
     }
@@ -90,9 +90,9 @@ pub(crate) fn ty_args_to_args<'tcx>(
     let mut elision_has_failed_once_before = false;
 
     let offset = if has_self { 1 } else { 0 };
-    let mut args = Vec::with_capacity(ty_args.skip_binder().len().saturating_sub(offset));
+    let mut clean_args = Vec::with_capacity(args.skip_binder().len().saturating_sub(offset));
 
-    let ty_arg_to_arg = |(index, arg): (usize, &ty::GenericArg<'tcx>)| match arg.unpack() {
+    let clean_arg = |(index, arg): (usize, &ty::GenericArg<'tcx>)| match arg.unpack() {
         GenericArgKind::Lifetime(lt) => {
             Some(GenericArg::Lifetime(clean_middle_region(lt).unwrap_or(Lifetime::elided())))
         }
@@ -101,26 +101,20 @@ pub(crate) fn ty_args_to_args<'tcx>(
             if !elision_has_failed_once_before
                 && let Some(default) = params[index].default_value(cx.tcx)
             {
-                let default =
-                    ty_args.map_bound(|args| default.instantiate(cx.tcx, args).expect_ty());
+                let default = args.map_bound(|args| default.instantiate(cx.tcx, args).expect_ty());
 
-                if can_elide_generic_arg(ty_args.rebind(ty), default) {
+                if can_elide_generic_arg(args.rebind(ty), default) {
                     return None;
                 }
 
                 elision_has_failed_once_before = true;
             }
 
             Some(GenericArg::Type(clean_middle_ty(
-                ty_args.rebind(ty),
+                args.rebind(ty),
                 cx,
                 None,
-                Some(crate::clean::ContainerTy::Regular {
-                    ty: owner,
-                    args: ty_args,
-                    has_self,
-                    arg: index,
-                }),
+                Some(crate::clean::ContainerTy::Regular { ty: owner, args, has_self, arg: index }),
             )))
         }
         GenericArgKind::Const(ct) => {
@@ -133,22 +127,22 @@ pub(crate) fn ty_args_to_args<'tcx>(
                 && let Some(default) = params[index].default_value(cx.tcx)
             {
                 let default =
-                    ty_args.map_bound(|args| default.instantiate(cx.tcx, args).expect_const());
+                    args.map_bound(|args| default.instantiate(cx.tcx, args).expect_const());
 
-                if can_elide_generic_arg(ty_args.rebind(ct), default) {
+                if can_elide_generic_arg(args.rebind(ct), default) {
                     return None;
                 }
 
                 elision_has_failed_once_before = true;
             }
 
-            Some(GenericArg::Const(Box::new(clean_middle_const(ty_args.rebind(ct), cx))))
+            Some(GenericArg::Const(Box::new(clean_middle_const(args.rebind(ct), cx))))
         }
     };
 
-    args.extend(ty_args.skip_binder().iter().enumerate().rev().filter_map(ty_arg_to_arg));
-    args.reverse();
-    args
+    clean_args.extend(args.skip_binder().iter().enumerate().rev().filter_map(clean_arg));
+    clean_args.reverse();
+    clean_args
 }
 
 /// Check if the generic argument `actual` coincides with the `default` and can therefore be elided.
@@ -192,14 +186,14 @@ where
     actual.skip_binder() == default.skip_binder()
 }
 
-fn external_generic_args<'tcx>(
+fn clean_middle_generic_args_with_bindings<'tcx>(
     cx: &mut DocContext<'tcx>,
     did: DefId,
     has_self: bool,
     bindings: ThinVec<TypeBinding>,
     ty_args: ty::Binder<'tcx, GenericArgsRef<'tcx>>,
 ) -> GenericArgs {
-    let args = ty_args_to_args(cx, ty_args.map_bound(|args| &args[..]), has_self, did);
+    let args = clean_middle_generic_args(cx, ty_args.map_bound(|args| &args[..]), has_self, did);
 
     if cx.tcx.fn_trait_kind_from_def_id(did).is_some() {
         let ty = ty_args
@@ -225,7 +219,7 @@ fn external_generic_args<'tcx>(
     }
 }
 
-pub(super) fn external_path<'tcx>(
+pub(super) fn clean_middle_path<'tcx>(
     cx: &mut DocContext<'tcx>,
     did: DefId,
     has_self: bool,
@@ -238,7 +232,7 @@ pub(super) fn external_path<'tcx>(
         res: Res::Def(def_kind, did),
         segments: thin_vec![PathSegment {
             name,
-            args: external_generic_args(cx, did, has_self, bindings, args),
+            args: clean_middle_generic_args_with_bindings(cx, did, has_self, bindings, args),
         }],
     }
 }