4 files changed, 8 insertions, 0 deletions

diff --git a/crates/ide/src/syntax_highlighting.rs b/crates/ide/src/syntax_highlighting.rs
index b35c03162..3982838d5 100644
--- a/crates/ide/src/syntax_highlighting.rs
+++ b/crates/ide/src/syntax_highlighting.rs
@@ -763,6 +763,9 @@ fn highlight_def(db: &RootDatabase, def: Definition) -> Highlight {
             if local.is_mut(db) || local.ty(db).is_mutable_reference() {
                 h |= HighlightModifier::Mutable;
             }
+            if local.ty(db).as_callable(db).is_some() {
+                h |= HighlightModifier::Callable;
+            }
             return h;
         }
     }
diff --git a/crates/ide/src/syntax_highlighting/tags.rs b/crates/ide/src/syntax_highlighting/tags.rs
index c1b817f06..e8f78ad52 100644
--- a/crates/ide/src/syntax_highlighting/tags.rs
+++ b/crates/ide/src/syntax_highlighting/tags.rs
@@ -64,6 +64,7 @@ pub enum HighlightModifier {
     Mutable,
     Consuming,
     Unsafe,
+    Callable,
 }
 
 impl HighlightTag {
@@ -122,6 +123,7 @@ impl HighlightModifier {
         HighlightModifier::Mutable,
         HighlightModifier::Consuming,
         HighlightModifier::Unsafe,
+        HighlightModifier::Callable,
     ];
 
     fn as_str(self) -> &'static str {
@@ -134,6 +136,7 @@ impl HighlightModifier {
             HighlightModifier::Mutable => "mutable",
             HighlightModifier::Consuming => "consuming",
             HighlightModifier::Unsafe => "unsafe",
+            HighlightModifier::Callable => "callable",
         }
     }
 
diff --git a/crates/rust-analyzer/src/semantic_tokens.rs b/crates/rust-analyzer/src/semantic_tokens.rs
index a6c4d6099..7df28c9dd 100644
--- a/crates/rust-analyzer/src/semantic_tokens.rs
+++ b/crates/rust-analyzer/src/semantic_tokens.rs
@@ -77,6 +77,7 @@ define_semantic_token_modifiers![
     (CONSUMING, "consuming"),
     (UNSAFE, "unsafe"),
     (ATTRIBUTE_MODIFIER, "attribute"),
+    (CALLABLE, "callable"),
 ];
 
 #[derive(Default)]
diff --git a/crates/rust-analyzer/src/to_proto.rs b/crates/rust-analyzer/src/to_proto.rs
index aeacde0f7..1a0b435bf 100644
--- a/crates/rust-analyzer/src/to_proto.rs
+++ b/crates/rust-analyzer/src/to_proto.rs
@@ -408,6 +408,7 @@ fn semantic_token_type_and_modifiers(
             HighlightModifier::Mutable => semantic_tokens::MUTABLE,
             HighlightModifier::Consuming => semantic_tokens::CONSUMING,
             HighlightModifier::Unsafe => semantic_tokens::UNSAFE,
+            HighlightModifier::Callable => semantic_tokens::CALLABLE,
         };
         mods |= modifier;
     }