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-rw-r--r--compiler/rustc_trait_selection/src/solve/trait_goals.rs2
-rw-r--r--compiler/rustc_trait_selection/src/traits/coherence.rs2
-rw-r--r--compiler/rustc_trait_selection/src/traits/error_reporting/mod.rs2
-rw-r--r--compiler/rustc_trait_selection/src/traits/error_reporting/suggestions.rs4
-rw-r--r--compiler/rustc_trait_selection/src/traits/select/mod.rs4
5 files changed, 7 insertions, 7 deletions
diff --git a/compiler/rustc_trait_selection/src/solve/trait_goals.rs b/compiler/rustc_trait_selection/src/solve/trait_goals.rs
index 644bfd33970..f722f281314 100644
--- a/compiler/rustc_trait_selection/src/solve/trait_goals.rs
+++ b/compiler/rustc_trait_selection/src/solve/trait_goals.rs
@@ -358,7 +358,7 @@ impl<'tcx> assembly::GoalKind<'tcx> for TraitPredicate<'tcx> {
                     // Can only unsize to an object-safe type
                     if data
                         .principal_def_id()
-                        .map_or(false, |def_id| !tcx.check_is_object_safe(def_id))
+                        .is_some_and(|def_id| !tcx.check_is_object_safe(def_id))
                     {
                         return Err(NoSolution);
                     }
diff --git a/compiler/rustc_trait_selection/src/traits/coherence.rs b/compiler/rustc_trait_selection/src/traits/coherence.rs
index 969e5fa64b0..aacbfbd3c87 100644
--- a/compiler/rustc_trait_selection/src/traits/coherence.rs
+++ b/compiler/rustc_trait_selection/src/traits/coherence.rs
@@ -706,7 +706,7 @@ impl<'tcx> TypeVisitor<TyCtxt<'tcx>> for OrphanChecker<'tcx> {
             }
             ty::Dynamic(tt, ..) => {
                 let principal = tt.principal().map(|p| p.def_id());
-                if principal.map_or(false, |p| self.def_id_is_local(p)) {
+                if principal.is_some_and(|p| self.def_id_is_local(p)) {
                     ControlFlow::Break(OrphanCheckEarlyExit::LocalTy(ty))
                 } else {
                     self.found_non_local_ty(ty)
diff --git a/compiler/rustc_trait_selection/src/traits/error_reporting/mod.rs b/compiler/rustc_trait_selection/src/traits/error_reporting/mod.rs
index dc43a3d154a..a10ececbb1e 100644
--- a/compiler/rustc_trait_selection/src/traits/error_reporting/mod.rs
+++ b/compiler/rustc_trait_selection/src/traits/error_reporting/mod.rs
@@ -437,7 +437,7 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> {
                     // 1) strictly implied by another error.
                     // 2) implied by an error with a smaller index.
                     for error2 in error_set {
-                        if error2.index.map_or(false, |index2| is_suppressed[index2]) {
+                        if error2.index.is_some_and(|index2| is_suppressed[index2]) {
                             // Avoid errors being suppressed by already-suppressed
                             // errors, to prevent all errors from being suppressed
                             // at once.
diff --git a/compiler/rustc_trait_selection/src/traits/error_reporting/suggestions.rs b/compiler/rustc_trait_selection/src/traits/error_reporting/suggestions.rs
index 83511e898f7..82bad96ea42 100644
--- a/compiler/rustc_trait_selection/src/traits/error_reporting/suggestions.rs
+++ b/compiler/rustc_trait_selection/src/traits/error_reporting/suggestions.rs
@@ -420,7 +420,7 @@ fn suggest_restriction<'tcx>(
 ) {
     if hir_generics.where_clause_span.from_expansion()
         || hir_generics.where_clause_span.desugaring_kind().is_some()
-        || projection.map_or(false, |projection| tcx.opt_rpitit_info(projection.def_id).is_some())
+        || projection.is_some_and(|projection| tcx.opt_rpitit_info(projection.def_id).is_some())
     {
         return;
     }
@@ -2936,7 +2936,7 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> {
                                     "note_obligation_cause_code: check for async fn"
                                 );
                                 if is_future
-                                    && obligated_types.last().map_or(false, |ty| match ty.kind() {
+                                    && obligated_types.last().is_some_and(|ty| match ty.kind() {
                                         ty::Generator(last_def_id, ..) => {
                                             tcx.generator_is_async(*last_def_id)
                                         }
diff --git a/compiler/rustc_trait_selection/src/traits/select/mod.rs b/compiler/rustc_trait_selection/src/traits/select/mod.rs
index b366bbd531b..3baf1c97c9f 100644
--- a/compiler/rustc_trait_selection/src/traits/select/mod.rs
+++ b/compiler/rustc_trait_selection/src/traits/select/mod.rs
@@ -1793,12 +1793,12 @@ impl<'cx, 'tcx> SelectionContext<'cx, 'tcx> {
             .infcx
             .at(&obligation.cause, obligation.param_env)
             .sup(DefineOpaqueTypes::No, obligation.predicate, infer_projection)
-            .map_or(false, |InferOk { obligations, value: () }| {
+            .is_ok_and(|InferOk { obligations, value: () }| {
                 self.evaluate_predicates_recursively(
                     TraitObligationStackList::empty(&ProvisionalEvaluationCache::default()),
                     nested_obligations.into_iter().chain(obligations),
                 )
-                .map_or(false, |res| res.may_apply())
+                .is_ok_and(|res| res.may_apply())
             });
 
         if is_match {