Rename object_safety to dyn_compatibility

Up to a trait implemented by another package, linking to
$CARGO_HOME/registry/cache/index.crates.io-6f17d22bba15001f/

12 files changed, 112 insertions, 106 deletions

diff --git a/src/tools/rust-analyzer/crates/hir-ty/src/chalk_db.rs b/src/tools/rust-analyzer/crates/hir-ty/src/chalk_db.rs
index e74e3d78988..f7bacbd49b3 100644
--- a/src/tools/rust-analyzer/crates/hir-ty/src/chalk_db.rs
+++ b/src/tools/rust-analyzer/crates/hir-ty/src/chalk_db.rs
@@ -382,8 +382,9 @@ impl chalk_solve::RustIrDatabase<Interner> for ChalkContext<'_> {
     }
 
     fn is_object_safe(&self, trait_id: chalk_ir::TraitId<Interner>) -> bool {
+        // FIXME: When cargo is updated, change to dyn_compatibility
         let trait_ = from_chalk_trait_id(trait_id);
-        crate::object_safety::object_safety(self.db, trait_).is_none()
+        crate::dyn_compatibility::dyn_compatibility(self.db, trait_).is_none()
     }
 
     fn closure_kind(
diff --git a/src/tools/rust-analyzer/crates/hir-ty/src/db.rs b/src/tools/rust-analyzer/crates/hir-ty/src/db.rs
index ce5a821ea2b..5620d80adb5 100644
--- a/src/tools/rust-analyzer/crates/hir-ty/src/db.rs
+++ b/src/tools/rust-analyzer/crates/hir-ty/src/db.rs
@@ -20,11 +20,11 @@ use triomphe::Arc;
 use crate::{
     chalk_db,
     consteval::ConstEvalError,
+    dyn_compatibility::DynCompatibilityViolation,
     layout::{Layout, LayoutError},
     lower::{GenericDefaults, GenericPredicates},
     method_resolution::{InherentImpls, TraitImpls, TyFingerprint},
     mir::{BorrowckResult, MirBody, MirLowerError},
-    object_safety::ObjectSafetyViolation,
     Binders, ClosureId, Const, FnDefId, ImplTraitId, ImplTraits, InferenceResult, Interner,
     PolyFnSig, Substitution, TraitEnvironment, TraitRef, Ty, TyDefId, ValueTyDefId,
 };
@@ -108,8 +108,8 @@ pub trait HirDatabase: DefDatabase + Upcast<dyn DefDatabase> {
     #[salsa::invoke(crate::layout::target_data_layout_query)]
     fn target_data_layout(&self, krate: CrateId) -> Result<Arc<TargetDataLayout>, Arc<str>>;
 
-    #[salsa::invoke(crate::object_safety::object_safety_of_trait_query)]
-    fn object_safety_of_trait(&self, trait_: TraitId) -> Option<ObjectSafetyViolation>;
+    #[salsa::invoke(crate::dyn_compatibility::dyn_compatibility_of_trait_query)]
+    fn dyn_compatibility_of_trait(&self, trait_: TraitId) -> Option<DynCompatibilityViolation>;
 
     #[salsa::invoke(crate::lower::ty_query)]
     #[salsa::cycle(crate::lower::ty_recover)]
@@ -280,8 +280,8 @@ pub trait HirDatabase: DefDatabase + Upcast<dyn DefDatabase> {
 }
 
 #[test]
-fn hir_database_is_object_safe() {
-    fn _assert_object_safe(_: &dyn HirDatabase) {}
+fn hir_database_is_dyn_compatible() {
+    fn _assert_dyn_compatible(_: &dyn HirDatabase) {}
 }
 
 #[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
diff --git a/src/tools/rust-analyzer/crates/hir-ty/src/object_safety.rs b/src/tools/rust-analyzer/crates/hir-ty/src/dyn_compatibility.rs
index a4c66268555..e0d1758210e 100644
--- a/src/tools/rust-analyzer/crates/hir-ty/src/object_safety.rs
+++ b/src/tools/rust-analyzer/crates/hir-ty/src/dyn_compatibility.rs
@@ -1,4 +1,4 @@
-//! Compute the object-safety of a trait
+//! Compute the dyn-compatibility of a trait
 
 use std::ops::ControlFlow;
 
@@ -28,14 +28,14 @@ use crate::{
 };
 
 #[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub enum ObjectSafetyViolation {
+pub enum DynCompatibilityViolation {
     SizedSelf,
     SelfReferential,
     Method(FunctionId, MethodViolationCode),
     AssocConst(ConstId),
     GAT(TypeAliasId),
     // This doesn't exist in rustc, but added for better visualization
-    HasNonSafeSuperTrait(TraitId),
+    HasNonCompatibleSuperTrait(TraitId),
 }
 
 #[derive(Debug, Clone, PartialEq, Eq, Hash)]
@@ -50,70 +50,73 @@ pub enum MethodViolationCode {
     UndispatchableReceiver,
 }
 
-pub fn object_safety(db: &dyn HirDatabase, trait_: TraitId) -> Option<ObjectSafetyViolation> {
+pub fn dyn_compatibility(
+    db: &dyn HirDatabase,
+    trait_: TraitId,
+) -> Option<DynCompatibilityViolation> {
     for super_trait in all_super_traits(db.upcast(), trait_).into_iter().skip(1).rev() {
-        if db.object_safety_of_trait(super_trait).is_some() {
-            return Some(ObjectSafetyViolation::HasNonSafeSuperTrait(super_trait));
+        if db.dyn_compatibility_of_trait(super_trait).is_some() {
+            return Some(DynCompatibilityViolation::HasNonCompatibleSuperTrait(super_trait));
         }
     }
 
-    db.object_safety_of_trait(trait_)
+    db.dyn_compatibility_of_trait(trait_)
 }
 
-pub fn object_safety_with_callback<F>(
+pub fn dyn_compatibility_with_callback<F>(
     db: &dyn HirDatabase,
     trait_: TraitId,
     cb: &mut F,
 ) -> ControlFlow<()>
 where
-    F: FnMut(ObjectSafetyViolation) -> ControlFlow<()>,
+    F: FnMut(DynCompatibilityViolation) -> ControlFlow<()>,
 {
     for super_trait in all_super_traits(db.upcast(), trait_).into_iter().skip(1).rev() {
-        if db.object_safety_of_trait(super_trait).is_some() {
-            cb(ObjectSafetyViolation::HasNonSafeSuperTrait(trait_))?;
+        if db.dyn_compatibility_of_trait(super_trait).is_some() {
+            cb(DynCompatibilityViolation::HasNonCompatibleSuperTrait(trait_))?;
         }
     }
 
-    object_safety_of_trait_with_callback(db, trait_, cb)
+    dyn_compatibility_of_trait_with_callback(db, trait_, cb)
 }
 
-pub fn object_safety_of_trait_with_callback<F>(
+pub fn dyn_compatibility_of_trait_with_callback<F>(
     db: &dyn HirDatabase,
     trait_: TraitId,
     cb: &mut F,
 ) -> ControlFlow<()>
 where
-    F: FnMut(ObjectSafetyViolation) -> ControlFlow<()>,
+    F: FnMut(DynCompatibilityViolation) -> ControlFlow<()>,
 {
     // Check whether this has a `Sized` bound
     if generics_require_sized_self(db, trait_.into()) {
-        cb(ObjectSafetyViolation::SizedSelf)?;
+        cb(DynCompatibilityViolation::SizedSelf)?;
     }
 
     // Check if there exist bounds that referencing self
     if predicates_reference_self(db, trait_) {
-        cb(ObjectSafetyViolation::SelfReferential)?;
+        cb(DynCompatibilityViolation::SelfReferential)?;
     }
     if bounds_reference_self(db, trait_) {
-        cb(ObjectSafetyViolation::SelfReferential)?;
+        cb(DynCompatibilityViolation::SelfReferential)?;
     }
 
     // rustc checks for non-lifetime binders here, but we don't support HRTB yet
 
     let trait_data = db.trait_data(trait_);
     for (_, assoc_item) in &trait_data.items {
-        object_safety_violation_for_assoc_item(db, trait_, *assoc_item, cb)?;
+        dyn_compatibility_violation_for_assoc_item(db, trait_, *assoc_item, cb)?;
     }
 
     ControlFlow::Continue(())
 }
 
-pub fn object_safety_of_trait_query(
+pub fn dyn_compatibility_of_trait_query(
     db: &dyn HirDatabase,
     trait_: TraitId,
-) -> Option<ObjectSafetyViolation> {
+) -> Option<DynCompatibilityViolation> {
     let mut res = None;
-    object_safety_of_trait_with_callback(db, trait_, &mut |osv| {
+    dyn_compatibility_of_trait_with_callback(db, trait_, &mut |osv| {
         res = Some(osv);
         ControlFlow::Break(())
     });
@@ -321,14 +324,14 @@ fn contains_illegal_self_type_reference<T: TypeVisitable<Interner>>(
     t.visit_with(visitor.as_dyn(), outer_binder).is_break()
 }
 
-fn object_safety_violation_for_assoc_item<F>(
+fn dyn_compatibility_violation_for_assoc_item<F>(
     db: &dyn HirDatabase,
     trait_: TraitId,
     item: AssocItemId,
     cb: &mut F,
 ) -> ControlFlow<()>
 where
-    F: FnMut(ObjectSafetyViolation) -> ControlFlow<()>,
+    F: FnMut(DynCompatibilityViolation) -> ControlFlow<()>,
 {
     // Any item that has a `Self : Sized` requisite is otherwise
     // exempt from the regulations.
@@ -337,10 +340,10 @@ where
     }
 
     match item {
-        AssocItemId::ConstId(it) => cb(ObjectSafetyViolation::AssocConst(it)),
+        AssocItemId::ConstId(it) => cb(DynCompatibilityViolation::AssocConst(it)),
         AssocItemId::FunctionId(it) => {
             virtual_call_violations_for_method(db, trait_, it, &mut |mvc| {
-                cb(ObjectSafetyViolation::Method(it, mvc))
+                cb(DynCompatibilityViolation::Method(it, mvc))
             })
         }
         AssocItemId::TypeAliasId(it) => {
@@ -350,7 +353,7 @@ where
             } else {
                 let generic_params = db.generic_params(item.into());
                 if !generic_params.is_empty() {
-                    cb(ObjectSafetyViolation::GAT(it))
+                    cb(DynCompatibilityViolation::GAT(it))
                 } else {
                     ControlFlow::Continue(())
                 }
@@ -469,7 +472,7 @@ fn receiver_is_dispatchable(
         return false;
     };
 
-    // `self: Self` can't be dispatched on, but this is already considered object safe.
+    // `self: Self` can't be dispatched on, but this is already considered dyn compatible
     // See rustc's comment on https://github.com/rust-lang/rust/blob/3f121b9461cce02a703a0e7e450568849dfaa074/compiler/rustc_trait_selection/src/traits/object_safety.rs#L433-L437
     if sig
         .skip_binders()
diff --git a/src/tools/rust-analyzer/crates/hir-ty/src/object_safety/tests.rs b/src/tools/rust-analyzer/crates/hir-ty/src/dyn_compatibility/tests.rs
index c2a9117c5be..3f3e68eeb1c 100644
--- a/src/tools/rust-analyzer/crates/hir-ty/src/object_safety/tests.rs
+++ b/src/tools/rust-analyzer/crates/hir-ty/src/dyn_compatibility/tests.rs
@@ -5,29 +5,29 @@ use rustc_hash::{FxHashMap, FxHashSet};
 use syntax::ToSmolStr;
 use test_fixture::WithFixture;
 
-use crate::{object_safety::object_safety_with_callback, test_db::TestDB};
+use crate::{dyn_compatibility::dyn_compatibility_with_callback, test_db::TestDB};
 
 use super::{
+    DynCompatibilityViolation,
     MethodViolationCode::{self, *},
-    ObjectSafetyViolation,
 };
 
-use ObjectSafetyViolationKind::*;
+use DynCompatibilityViolationKind::*;
 
 #[allow(clippy::upper_case_acronyms)]
 #[derive(Debug, Clone, PartialEq, Eq, Hash)]
-enum ObjectSafetyViolationKind {
+enum DynCompatibilityViolationKind {
     SizedSelf,
     SelfReferential,
     Method(MethodViolationCode),
     AssocConst,
     GAT,
-    HasNonSafeSuperTrait,
+    HasNonCompatibleSuperTrait,
 }
 
-fn check_object_safety<'a>(
+fn check_dyn_compatibility<'a>(
     ra_fixture: &str,
-    expected: impl IntoIterator<Item = (&'a str, Vec<ObjectSafetyViolationKind>)>,
+    expected: impl IntoIterator<Item = (&'a str, Vec<DynCompatibilityViolationKind>)>,
 ) {
     let mut expected: FxHashMap<_, _> =
         expected.into_iter().map(|(id, osvs)| (id, FxHashSet::from_iter(osvs))).collect();
@@ -53,18 +53,20 @@ fn check_object_safety<'a>(
             continue;
         };
         let mut osvs = FxHashSet::default();
-        object_safety_with_callback(&db, trait_id, &mut |osv| {
+        dyn_compatibility_with_callback(&db, trait_id, &mut |osv| {
             osvs.insert(match osv {
-                ObjectSafetyViolation::SizedSelf => SizedSelf,
-                ObjectSafetyViolation::SelfReferential => SelfReferential,
-                ObjectSafetyViolation::Method(_, mvc) => Method(mvc),
-                ObjectSafetyViolation::AssocConst(_) => AssocConst,
-                ObjectSafetyViolation::GAT(_) => GAT,
-                ObjectSafetyViolation::HasNonSafeSuperTrait(_) => HasNonSafeSuperTrait,
+                DynCompatibilityViolation::SizedSelf => SizedSelf,
+                DynCompatibilityViolation::SelfReferential => SelfReferential,
+                DynCompatibilityViolation::Method(_, mvc) => Method(mvc),
+                DynCompatibilityViolation::AssocConst(_) => AssocConst,
+                DynCompatibilityViolation::GAT(_) => GAT,
+                DynCompatibilityViolation::HasNonCompatibleSuperTrait(_) => {
+                    HasNonCompatibleSuperTrait
+                }
             });
             ControlFlow::Continue(())
         });
-        assert_eq!(osvs, expected, "Object safety violations for `{name}` do not match;");
+        assert_eq!(osvs, expected, "Dyn Compatibility violations for `{name}` do not match;");
     }
 
     let remains: Vec<_> = expected.keys().collect();
@@ -73,7 +75,7 @@ fn check_object_safety<'a>(
 
 #[test]
 fn item_bounds_can_reference_self() {
-    check_object_safety(
+    check_dyn_compatibility(
         r#"
 //- minicore: eq
 pub trait Foo {
@@ -88,7 +90,7 @@ pub trait Foo {
 
 #[test]
 fn associated_consts() {
-    check_object_safety(
+    check_dyn_compatibility(
         r#"
 trait Bar {
     const X: usize;
@@ -100,7 +102,7 @@ trait Bar {
 
 #[test]
 fn bounds_reference_self() {
-    check_object_safety(
+    check_dyn_compatibility(
         r#"
 //- minicore: eq
 trait X {
@@ -113,7 +115,7 @@ trait X {
 
 #[test]
 fn by_value_self() {
-    check_object_safety(
+    check_dyn_compatibility(
         r#"
 //- minicore: dispatch_from_dyn
 trait Bar {
@@ -135,7 +137,7 @@ trait Quux {
 
 #[test]
 fn generic_methods() {
-    check_object_safety(
+    check_dyn_compatibility(
         r#"
 //- minicore: dispatch_from_dyn
 trait Bar {
@@ -157,7 +159,7 @@ trait Qax {
 
 #[test]
 fn mentions_self() {
-    check_object_safety(
+    check_dyn_compatibility(
         r#"
 //- minicore: dispatch_from_dyn
 trait Bar {
@@ -182,7 +184,7 @@ trait Quux {
 
 #[test]
 fn no_static() {
-    check_object_safety(
+    check_dyn_compatibility(
         r#"
 //- minicore: dispatch_from_dyn
 trait Foo {
@@ -195,7 +197,7 @@ trait Foo {
 
 #[test]
 fn sized_self() {
-    check_object_safety(
+    check_dyn_compatibility(
         r#"
 //- minicore: dispatch_from_dyn
 trait Bar: Sized {
@@ -205,7 +207,7 @@ trait Bar: Sized {
         [("Bar", vec![SizedSelf])],
     );
 
-    check_object_safety(
+    check_dyn_compatibility(
         r#"
 //- minicore: dispatch_from_dyn
 trait Bar
@@ -220,7 +222,7 @@ trait Bar
 
 #[test]
 fn supertrait_gat() {
-    check_object_safety(
+    check_dyn_compatibility(
         r#"
 //- minicore: dispatch_from_dyn
 trait GatTrait {
@@ -229,13 +231,13 @@ trait GatTrait {
 
 trait SuperTrait<T>: GatTrait {}
 "#,
-        [("GatTrait", vec![GAT]), ("SuperTrait", vec![HasNonSafeSuperTrait])],
+        [("GatTrait", vec![GAT]), ("SuperTrait", vec![HasNonCompatibleSuperTrait])],
     );
 }
 
 #[test]
 fn supertrait_mentions_self() {
-    check_object_safety(
+    check_dyn_compatibility(
         r#"
 //- minicore: dispatch_from_dyn
 trait Bar<T> {
@@ -251,7 +253,7 @@ trait Baz : Bar<Self> {
 
 #[test]
 fn rustc_issue_19538() {
-    check_object_safety(
+    check_dyn_compatibility(
         r#"
 //- minicore: dispatch_from_dyn
 trait Foo {
@@ -260,13 +262,13 @@ trait Foo {
 
 trait Bar: Foo {}
 "#,
-        [("Foo", vec![Method(Generic)]), ("Bar", vec![HasNonSafeSuperTrait])],
+        [("Foo", vec![Method(Generic)]), ("Bar", vec![HasNonCompatibleSuperTrait])],
     );
 }
 
 #[test]
 fn rustc_issue_22040() {
-    check_object_safety(
+    check_dyn_compatibility(
         r#"
 //- minicore: fmt, eq, dispatch_from_dyn
 use core::fmt::Debug;
@@ -281,7 +283,7 @@ trait Expr: Debug + PartialEq {
 
 #[test]
 fn rustc_issue_102762() {
-    check_object_safety(
+    check_dyn_compatibility(
         r#"
 //- minicore: future, send, sync, dispatch_from_dyn, deref
 use core::pin::Pin;
@@ -313,7 +315,7 @@ pub trait Fetcher: Send + Sync {
 
 #[test]
 fn rustc_issue_102933() {
-    check_object_safety(
+    check_dyn_compatibility(
         r#"
 //- minicore: future, dispatch_from_dyn, deref
 use core::future::Future;
@@ -351,7 +353,7 @@ pub trait B2: Service<Response = i32> + B1 {
 
 #[test]
 fn rustc_issue_106247() {
-    check_object_safety(
+    check_dyn_compatibility(
         r#"
 //- minicore: sync, dispatch_from_dyn
 pub trait Trait {
@@ -363,8 +365,8 @@ pub trait Trait {
 }
 
 #[test]
-fn std_error_is_object_safe() {
-    check_object_safety(
+fn std_error_is_dyn_compatible() {
+    check_dyn_compatibility(
         r#"
 //- minicore: fmt, dispatch_from_dyn
 trait Erased<'a>: 'a {}
@@ -380,14 +382,14 @@ pub trait Error: core::fmt::Debug + core::fmt::Display {
 }
 
 #[test]
-fn lifetime_gat_is_object_unsafe() {
-    check_object_safety(
+fn lifetime_gat_is_dyn_incompatible() {
+    check_dyn_compatibility(
         r#"
 //- minicore: dispatch_from_dyn
 trait Foo {
     type Bar<'a>;
 }
 "#,
-        [("Foo", vec![ObjectSafetyViolationKind::GAT])],
+        [("Foo", vec![DynCompatibilityViolationKind::GAT])],
     );
 }
diff --git a/src/tools/rust-analyzer/crates/hir-ty/src/lib.rs b/src/tools/rust-analyzer/crates/hir-ty/src/lib.rs
index 5ed41b99ba3..ef570a20556 100644
--- a/src/tools/rust-analyzer/crates/hir-ty/src/lib.rs
+++ b/src/tools/rust-analyzer/crates/hir-ty/src/lib.rs
@@ -38,11 +38,11 @@ pub mod consteval;
 pub mod db;
 pub mod diagnostics;
 pub mod display;
+pub mod dyn_compatibility;
 pub mod lang_items;
 pub mod layout;
 pub mod method_resolution;
 pub mod mir;
-pub mod object_safety;
 pub mod primitive;
 pub mod traits;
 
diff --git a/src/tools/rust-analyzer/crates/hir/src/lib.rs b/src/tools/rust-analyzer/crates/hir/src/lib.rs
index 8f5db32f957..e2cf5b07897 100644
--- a/src/tools/rust-analyzer/crates/hir/src/lib.rs
+++ b/src/tools/rust-analyzer/crates/hir/src/lib.rs
@@ -144,9 +144,9 @@ pub use {
     hir_ty::{
         consteval::ConstEvalError,
         display::{ClosureStyle, HirDisplay, HirDisplayError, HirWrite},
+        dyn_compatibility::{DynCompatibilityViolation, MethodViolationCode},
         layout::LayoutError,
         mir::{MirEvalError, MirLowerError},
-        object_safety::{MethodViolationCode, ObjectSafetyViolation},
         CastError, FnAbi, PointerCast, Safety,
     },
     // FIXME: Properly encapsulate mir
@@ -2690,8 +2690,8 @@ impl Trait {
             .count()
     }
 
-    pub fn object_safety(&self, db: &dyn HirDatabase) -> Option<ObjectSafetyViolation> {
-        hir_ty::object_safety::object_safety(db, self.id)
+    pub fn dyn_compatibility(&self, db: &dyn HirDatabase) -> Option<DynCompatibilityViolation> {
+        hir_ty::dyn_compatibility::dyn_compatibility(db, self.id)
     }
 
     fn all_macro_calls(&self, db: &dyn HirDatabase) -> Box<[(AstId<ast::Item>, MacroCallId)]> {
diff --git a/src/tools/rust-analyzer/crates/ide-db/src/generated/lints.rs b/src/tools/rust-analyzer/crates/ide-db/src/generated/lints.rs
index abf4438a71f..266109765ab 100644
--- a/src/tools/rust-analyzer/crates/ide-db/src/generated/lints.rs
+++ b/src/tools/rust-analyzer/crates/ide-db/src/generated/lints.rs
@@ -7081,8 +7081,8 @@ This feature has no tracking issue, and is therefore likely internal to the comp
 "##,
     },
     Lint {
-        label: "object_safe_for_dispatch",
-        description: r##"# `object_safe_for_dispatch`
+        label: "dyn_compatible_for_dispatch",
+        description: r##"# `dyn_compatible_for_dispatch`
 
 The tracking issue for this feature is: [#43561]
 
diff --git a/src/tools/rust-analyzer/crates/ide/src/hover/render.rs b/src/tools/rust-analyzer/crates/ide/src/hover/render.rs
index 83adf6548a8..5a8c9a9f11f 100644
--- a/src/tools/rust-analyzer/crates/ide/src/hover/render.rs
+++ b/src/tools/rust-analyzer/crates/ide/src/hover/render.rs
@@ -3,9 +3,9 @@ use std::{mem, ops::Not};
 
 use either::Either;
 use hir::{
-    db::ExpandDatabase, Adt, AsAssocItem, AsExternAssocItem, CaptureKind, HasCrate, HasSource,
-    HirDisplay, Layout, LayoutError, MethodViolationCode, Name, ObjectSafetyViolation, Semantics,
-    Trait, Type, TypeInfo,
+    db::ExpandDatabase, Adt, AsAssocItem, AsExternAssocItem, CaptureKind,
+    DynCompatibilityViolation, HasCrate, HasSource, HirDisplay, Layout, LayoutError,
+    MethodViolationCode, Name, Semantics, Trait, Type, TypeInfo,
 };
 use ide_db::{
     base_db::SourceDatabase,
@@ -529,10 +529,10 @@ pub(super) fn definition(
         _ => None,
     };
 
-    let object_safety_info = if let Definition::Trait(it) = def {
-        let mut object_safety_info = String::new();
-        render_object_safety(db, &mut object_safety_info, it.object_safety(db));
-        Some(object_safety_info)
+    let dyn_compatibility_info = if let Definition::Trait(it) = def {
+        let mut dyn_compatibility_info = String::new();
+        render_dyn_compatibility(db, &mut dyn_compatibility_info, it.dyn_compatibility(db));
+        Some(dyn_compatibility_info)
     } else {
         None
     };
@@ -546,8 +546,8 @@ pub(super) fn definition(
         desc.push_str(&layout_info);
         desc.push('\n');
     }
-    if let Some(object_safety_info) = object_safety_info {
-        desc.push_str(&object_safety_info);
+    if let Some(dyn_compatibility_info) = dyn_compatibility_info {
+        desc.push_str(&dyn_compatibility_info);
         desc.push('\n');
     }
     desc.push_str(&label);
@@ -980,24 +980,24 @@ fn keyword_hints(
     }
 }
 
-fn render_object_safety(
+fn render_dyn_compatibility(
     db: &RootDatabase,
     buf: &mut String,
-    safety: Option<ObjectSafetyViolation>,
+    safety: Option<DynCompatibilityViolation>,
 ) {
     let Some(osv) = safety else {
-        buf.push_str("// Object Safety: Yes");
+        buf.push_str("// Dyn Compatible: Yes");
         return;
     };
-    buf.push_str("// Object Safety: No\n// - Reason: ");
+    buf.push_str("// Dyn Compatible: No\n// - Reason: ");
     match osv {
-        ObjectSafetyViolation::SizedSelf => {
+        DynCompatibilityViolation::SizedSelf => {
             buf.push_str("has a `Self: Sized` bound");
         }
-        ObjectSafetyViolation::SelfReferential => {
+        DynCompatibilityViolation::SelfReferential => {
             buf.push_str("has a bound that references `Self`");
         }
-        ObjectSafetyViolation::Method(func, mvc) => {
+        DynCompatibilityViolation::Method(func, mvc) => {
             let name = hir::Function::from(func).name(db);
             format_to!(
                 buf,
@@ -1020,7 +1020,7 @@ fn render_object_safety(
             };
             buf.push_str(desc);
         }
-        ObjectSafetyViolation::AssocConst(const_) => {
+        DynCompatibilityViolation::AssocConst(const_) => {
             let name = hir::Const::from(const_).name(db);
             if let Some(name) = name {
                 format_to!(buf, "has an associated constant `{}`", name.as_str());
@@ -1028,11 +1028,11 @@ fn render_object_safety(
                 buf.push_str("has an associated constant");
             }
         }
-        ObjectSafetyViolation::GAT(alias) => {
+        DynCompatibilityViolation::GAT(alias) => {
             let name = hir::TypeAlias::from(alias).name(db);
             format_to!(buf, "has a generic associated type `{}`", name.as_str());
         }
-        ObjectSafetyViolation::HasNonSafeSuperTrait(super_trait) => {
+        DynCompatibilityViolation::HasNonCompatibleSuperTrait(super_trait) => {
             let name = hir::Trait::from(super_trait).name(db);
             format_to!(buf, "has a object unsafe supertrait `{}`", name.as_str());
         }
diff --git a/src/tools/rust-analyzer/crates/ide/src/hover/tests.rs b/src/tools/rust-analyzer/crates/ide/src/hover/tests.rs
index cca62d2181f..db2b98090cf 100644
--- a/src/tools/rust-analyzer/crates/ide/src/hover/tests.rs
+++ b/src/tools/rust-analyzer/crates/ide/src/hover/tests.rs
@@ -7175,7 +7175,7 @@ impl T$0 for () {}
             ```
 
             ```rust
-            // Object Safety: Yes
+            // Dyn Compatible: Yes
             trait T {}
             ```
         "#]],
@@ -7195,7 +7195,7 @@ impl T$0 for () {}
             ```
 
             ```rust
-            // Object Safety: Yes
+            // Dyn Compatible: Yes
             trait T {}
             ```
         "#]],
@@ -7219,7 +7219,7 @@ impl T$0 for () {}
             ```
 
             ```rust
-            // Object Safety: No
+            // Dyn Compatible: No
             // - Reason: has a method `func` that is non dispatchable because of:
             //   - missing a receiver
             trait T { /* … */ }
@@ -7245,7 +7245,7 @@ impl T$0 for () {}
             ```
 
             ```rust
-            // Object Safety: No
+            // Dyn Compatible: No
             // - Reason: has a method `func` that is non dispatchable because of:
             //   - missing a receiver
             trait T {
@@ -7275,7 +7275,7 @@ impl T$0 for () {}
             ```
 
             ```rust
-            // Object Safety: No
+            // Dyn Compatible: No
             // - Reason: has a method `func` that is non dispatchable because of:
             //   - missing a receiver
             trait T {
@@ -7305,7 +7305,7 @@ impl T$0 for () {}
             ```
 
             ```rust
-            // Object Safety: No
+            // Dyn Compatible: No
             // - Reason: has a method `func` that is non dispatchable because of:
             //   - missing a receiver
             trait T {
diff --git a/src/tools/rust-analyzer/crates/syntax/src/ast.rs b/src/tools/rust-analyzer/crates/syntax/src/ast.rs
index 3ce9afa1dec..32b1f5f7544 100644
--- a/src/tools/rust-analyzer/crates/syntax/src/ast.rs
+++ b/src/tools/rust-analyzer/crates/syntax/src/ast.rs
@@ -167,7 +167,7 @@ mod support {
 }
 
 #[test]
-fn assert_ast_is_object_safe() {
+fn assert_ast_is_dyn_compatible() {
     fn _f(_: &dyn AstNode, _: &dyn HasName) {}
 }
 
diff --git a/src/tools/rust-analyzer/crates/vfs/src/loader.rs b/src/tools/rust-analyzer/crates/vfs/src/loader.rs
index f24354cb493..c49e4c4322d 100644
--- a/src/tools/rust-analyzer/crates/vfs/src/loader.rs
+++ b/src/tools/rust-analyzer/crates/vfs/src/loader.rs
@@ -1,4 +1,4 @@
-//! Object safe interface for file watching and reading.
+//! Dynamically compatible interface for file watching and reading.
 use std::fmt;
 
 use paths::{AbsPath, AbsPathBuf};
@@ -232,6 +232,6 @@ impl fmt::Debug for Message {
 }
 
 #[test]
-fn handle_is_object_safe() {
+fn handle_is_dyn_compatible() {
     fn _assert(_: &dyn Handle) {}
 }
diff --git a/src/tools/rust-analyzer/docs/dev/syntax.md b/src/tools/rust-analyzer/docs/dev/syntax.md
index 6c4daecc58f..3dcd430cea5 100644
--- a/src/tools/rust-analyzer/docs/dev/syntax.md
+++ b/src/tools/rust-analyzer/docs/dev/syntax.md
@@ -378,7 +378,7 @@ impl AstNode for AssocItem {
 }
 ```
 
-Shared AST substructures are modeled via (object safe) traits:
+Shared AST substructures are modeled via (dynamically compatible) traits:
 
 ```rust
 trait HasVisibility: AstNode {