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-rw-r--r--compiler/rustc_trait_selection/src/infer.rs2
-rw-r--r--compiler/rustc_trait_selection/src/solve/canonicalize.rs2
-rw-r--r--compiler/rustc_trait_selection/src/traits/coherence.rs2
-rw-r--r--compiler/rustc_trait_selection/src/traits/outlives_bounds.rs2
-rw-r--r--compiler/rustc_trait_selection/src/traits/select/mod.rs23
-rw-r--r--compiler/rustc_trait_selection/src/traits/vtable.rs4
6 files changed, 18 insertions, 17 deletions
diff --git a/compiler/rustc_trait_selection/src/infer.rs b/compiler/rustc_trait_selection/src/infer.rs
index 911cc0b88c4..fcf86da08f4 100644
--- a/compiler/rustc_trait_selection/src/infer.rs
+++ b/compiler/rustc_trait_selection/src/infer.rs
@@ -41,7 +41,7 @@ impl<'tcx> InferCtxtExt<'tcx> for InferCtxt<'tcx> {
     fn type_is_copy_modulo_regions(&self, param_env: ty::ParamEnv<'tcx>, ty: Ty<'tcx>) -> bool {
         let ty = self.resolve_vars_if_possible(ty);
 
-        if !(param_env, ty).needs_infer() {
+        if !(param_env, ty).has_infer() {
             return ty.is_copy_modulo_regions(self.tcx, param_env);
         }
 
diff --git a/compiler/rustc_trait_selection/src/solve/canonicalize.rs b/compiler/rustc_trait_selection/src/solve/canonicalize.rs
index 976849696e3..ff4bff10cc8 100644
--- a/compiler/rustc_trait_selection/src/solve/canonicalize.rs
+++ b/compiler/rustc_trait_selection/src/solve/canonicalize.rs
@@ -69,7 +69,7 @@ impl<'a, 'tcx> Canonicalizer<'a, 'tcx> {
         };
 
         let value = value.fold_with(&mut canonicalizer);
-        assert!(!value.needs_infer());
+        assert!(!value.has_infer());
         assert!(!value.has_placeholders());
 
         let (max_universe, variables) = canonicalizer.finalize();
diff --git a/compiler/rustc_trait_selection/src/traits/coherence.rs b/compiler/rustc_trait_selection/src/traits/coherence.rs
index 20c2605f219..b9310d3f839 100644
--- a/compiler/rustc_trait_selection/src/traits/coherence.rs
+++ b/compiler/rustc_trait_selection/src/traits/coherence.rs
@@ -582,7 +582,7 @@ fn orphan_check_trait_ref<'tcx>(
     trait_ref: ty::TraitRef<'tcx>,
     in_crate: InCrate,
 ) -> Result<(), OrphanCheckErr<'tcx>> {
-    if trait_ref.needs_infer() && trait_ref.needs_subst() {
+    if trait_ref.has_infer() && trait_ref.needs_subst() {
         bug!(
             "can't orphan check a trait ref with both params and inference variables {:?}",
             trait_ref
diff --git a/compiler/rustc_trait_selection/src/traits/outlives_bounds.rs b/compiler/rustc_trait_selection/src/traits/outlives_bounds.rs
index e01a57ea4fe..0db80232891 100644
--- a/compiler/rustc_trait_selection/src/traits/outlives_bounds.rs
+++ b/compiler/rustc_trait_selection/src/traits/outlives_bounds.rs
@@ -60,7 +60,7 @@ impl<'a, 'tcx: 'a> InferCtxtExt<'a, 'tcx> for InferCtxt<'tcx> {
         // We may however encounter unconstrained lifetime variables in invalid
         // code. See #110161 for context.
         assert!(!ty.has_non_region_infer());
-        if ty.needs_infer() {
+        if ty.has_infer() {
             self.tcx.sess.delay_span_bug(
                 self.tcx.def_span(body_id),
                 "skipped implied_outlives_bounds due to unconstrained lifetimes",
diff --git a/compiler/rustc_trait_selection/src/traits/select/mod.rs b/compiler/rustc_trait_selection/src/traits/select/mod.rs
index af61ca0c29f..a67fc8b592d 100644
--- a/compiler/rustc_trait_selection/src/traits/select/mod.rs
+++ b/compiler/rustc_trait_selection/src/traits/select/mod.rs
@@ -449,7 +449,7 @@ impl<'cx, 'tcx> SelectionContext<'cx, 'tcx> {
 
         debug!(?stack, ?candidates, "winnowed to {} candidates", candidates.len());
 
-        let needs_infer = stack.obligation.predicate.has_non_region_infer();
+        let has_non_region_infer = stack.obligation.predicate.has_non_region_infer();
 
         // If there are STILL multiple candidates, we can further
         // reduce the list by dropping duplicates -- including
@@ -461,7 +461,7 @@ impl<'cx, 'tcx> SelectionContext<'cx, 'tcx> {
                     self.candidate_should_be_dropped_in_favor_of(
                         &candidates[i],
                         &candidates[j],
-                        needs_infer,
+                        has_non_region_infer,
                     ) == DropVictim::Yes
                 });
                 if should_drop_i {
@@ -1330,7 +1330,7 @@ impl<'cx, 'tcx> SelectionContext<'cx, 'tcx> {
         }
 
         if self.can_use_global_caches(param_env) {
-            if !trait_pred.needs_infer() {
+            if !trait_pred.has_infer() {
                 debug!(?trait_pred, ?result, "insert_evaluation_cache global");
                 // This may overwrite the cache with the same value
                 // FIXME: Due to #50507 this overwrites the different values
@@ -1516,7 +1516,7 @@ impl<'cx, 'tcx> SelectionContext<'cx, 'tcx> {
         // If there are any inference variables in the `ParamEnv`, then we
         // always use a cache local to this particular scope. Otherwise, we
         // switch to a global cache.
-        if param_env.needs_infer() {
+        if param_env.has_infer() {
             return false;
         }
 
@@ -1587,7 +1587,7 @@ impl<'cx, 'tcx> SelectionContext<'cx, 'tcx> {
             return false;
         }
         match result {
-            Ok(Some(SelectionCandidate::ParamCandidate(trait_ref))) => !trait_ref.needs_infer(),
+            Ok(Some(SelectionCandidate::ParamCandidate(trait_ref))) => !trait_ref.has_infer(),
             _ => true,
         }
     }
@@ -1613,8 +1613,8 @@ impl<'cx, 'tcx> SelectionContext<'cx, 'tcx> {
         if self.can_use_global_caches(param_env) {
             if let Err(Overflow(OverflowError::Canonical)) = candidate {
                 // Don't cache overflow globally; we only produce this in certain modes.
-            } else if !pred.needs_infer() {
-                if !candidate.needs_infer() {
+            } else if !pred.has_infer() {
+                if !candidate.has_infer() {
                     debug!(?pred, ?candidate, "insert_candidate_cache global");
                     // This may overwrite the cache with the same value.
                     tcx.selection_cache.insert((param_env, pred), dep_node, candidate);
@@ -1724,7 +1724,7 @@ impl<'cx, 'tcx> SelectionContext<'cx, 'tcx> {
             .map(|InferOk { obligations: _, value: () }| {
                 // This method is called within a probe, so we can't have
                 // inference variables and placeholders escape.
-                if !trait_bound.needs_infer() && !trait_bound.has_placeholders() {
+                if !trait_bound.has_infer() && !trait_bound.has_placeholders() {
                     Some(trait_bound)
                 } else {
                     None
@@ -1840,7 +1840,7 @@ impl<'tcx> SelectionContext<'_, 'tcx> {
         &mut self,
         victim: &EvaluatedCandidate<'tcx>,
         other: &EvaluatedCandidate<'tcx>,
-        needs_infer: bool,
+        has_non_region_infer: bool,
     ) -> DropVictim {
         if victim.candidate == other.candidate {
             return DropVictim::Yes;
@@ -1956,7 +1956,7 @@ impl<'tcx> SelectionContext<'_, 'tcx> {
             | (ObjectCandidate(i), ObjectCandidate(j)) => {
                 // Arbitrarily pick the lower numbered candidate for backwards
                 // compatibility reasons. Don't let this affect inference.
-                DropVictim::drop_if(i < j && !needs_infer)
+                DropVictim::drop_if(i < j && !has_non_region_infer)
             }
             (ObjectCandidate(_), ProjectionCandidate(..))
             | (ProjectionCandidate(..), ObjectCandidate(_)) => {
@@ -2062,7 +2062,8 @@ impl<'tcx> SelectionContext<'_, 'tcx> {
                         // existence of multiple marker trait impls tells us nothing
                         // about which one should actually apply.
                         DropVictim::drop_if(
-                            !needs_infer && other.evaluation.must_apply_considering_regions(),
+                            !has_non_region_infer
+                                && other.evaluation.must_apply_considering_regions(),
                         )
                     }
                     None => DropVictim::No,
diff --git a/compiler/rustc_trait_selection/src/traits/vtable.rs b/compiler/rustc_trait_selection/src/traits/vtable.rs
index a4e9928f8b2..c56e7c7cadd 100644
--- a/compiler/rustc_trait_selection/src/traits/vtable.rs
+++ b/compiler/rustc_trait_selection/src/traits/vtable.rs
@@ -353,8 +353,8 @@ pub(crate) fn vtable_trait_upcasting_coercion_new_vptr_slot<'tcx>(
     ),
 ) -> Option<usize> {
     let (source, target) = key;
-    assert!(matches!(&source.kind(), &ty::Dynamic(..)) && !source.needs_infer());
-    assert!(matches!(&target.kind(), &ty::Dynamic(..)) && !target.needs_infer());
+    assert!(matches!(&source.kind(), &ty::Dynamic(..)) && !source.has_infer());
+    assert!(matches!(&target.kind(), &ty::Dynamic(..)) && !target.has_infer());
 
     // this has been typecked-before, so diagnostics is not really needed.
     let unsize_trait_did = tcx.require_lang_item(LangItem::Unsize, None);