Show type info on hover of enum variant fields

crates/ide/src/hover/render.rs

@@ -395,17 +395,17 @@ pub(super) fn definition(
             let id = it.index();
             let layout = it.layout(db).ok()?;
             let offset = match var_def {
-                hir::VariantDef::Struct(s) => {
-                    let layout = Adt::from(s).layout(db).ok()?;
-                    layout.fields.offset(id)
-                }
-                _ => return None,
+                hir::VariantDef::Struct(s) => Adt::from(s)
+                    .layout(db)
+                    .ok()
+                    .map(|layout| format!(", offset = {}", layout.fields.offset(id).bytes())),
+                _ => None,
             };
             Some(format!(
-                "size = {}, align = {}, offset = {}",
+                "size = {}, align = {}{}",
                 layout.size.bytes(),
                 layout.align.abi.bytes(),
-                offset.bytes()
+                offset.as_deref().unwrap_or_default()
             ))
         }),
         Definition::Module(it) => label_and_docs(db, it),

crates/ide/src/hover/tests.rs

@@ -5176,6 +5176,28 @@ enum Enum {
     );
 }
 
+#[test]
+fn hover_record_variant_field() {
+    check(
+        r#"
+enum Enum {
+    RecordV { field$0: u32 }
+}
+"#,
+        expect![[r#"
+            *field*
+
+            ```rust
+            test::RecordV
+            ```
+
+            ```rust
+            field: u32 // size = 4, align = 4
+            ```
+        "#]],
+    );
+}
+
 #[test]
 fn hover_trait_impl_assoc_item_def_doc_forwarding() {
     check(