fix: the fields or variants of ADT was not restricted by limitations when hovering on Self type

src/tools/rust-analyzer/crates/ide/src/hover/render.rs

@@ -413,6 +413,15 @@ pub(super) fn definition(
         Definition::Adt(adt) => {
             adt.display_limited(db, config.max_adt_fields_or_variants_count).to_string()
         }
+        Definition::SelfType(impl_def) => {
+            let self_ty = &impl_def.self_ty(db);
+            match self_ty.as_adt() {
+                Some(adt) => {
+                    adt.display_limited(db, config.max_adt_fields_or_variants_count).to_string()
+                }
+                None => self_ty.display(db).to_string(),
+            }
+        }
         _ => def.label(db),
     };
     let docs = def.docs(db, famous_defs);

src/tools/rust-analyzer/crates/ide/src/hover/tests.rs

@@ -1623,6 +1623,28 @@ impl Thing {
                 test
                 ```
 
+                ```rust
+                struct Thing {
+                    x: u32,
+                }
+                ```
+            "#]],
+    );
+    check_hover_adt_fields_or_variants_limit(
+        None,
+        r#"
+struct Thing { x: u32 }
+impl Thing {
+    fn new() -> Self { Self$0 { x: 0 } }
+}
+"#,
+        expect![[r#"
+                *Self*
+
+                ```rust
+                test
+                ```
+
                 ```rust
                 struct Thing
                 ```
@@ -1643,7 +1665,9 @@ impl Thing {
                 ```
 
                 ```rust
-                struct Thing
+                struct Thing {
+                    x: u32,
+                }
                 ```
             "#]],
     );
@@ -1662,7 +1686,9 @@ impl Thing {
             ```
 
             ```rust
-            enum Thing
+            enum Thing {
+                A,
+            }
             ```
         "#]],
     );
@@ -1681,7 +1707,9 @@ impl Thing {
             ```
 
             ```rust
-            enum Thing
+            enum Thing {
+                A,
+            }
             ```
         "#]],
     );