fix generic class completion

Author: CppCXY

crates/emmylua_code_analysis/src/db_index/type/humanize_type.rs

@@ -415,9 +415,6 @@ fn humanize_generic_type(db: &DbIndex, generic: &LuaGenericType, level: RenderLe
                 }
             }
         }
-        RenderLevel::Minimal => {
-            return format!("{}<...>", simple_name);
-        }
         _ => {}
     }
 

crates/emmylua_code_analysis/src/semantic/member/infer_member_map.rs

@@ -16,6 +16,25 @@ pub fn infer_member_map(
     let mut member_map = HashMap::new();
     for member in members {
         let key = member.key.clone();
+        let typ = &member.typ;
+        if let LuaType::Union(u) = typ {
+            if u.get_types().iter().all(|f| f.is_function()) {
+                for f in u.get_types() {
+                    let new_member = LuaMemberInfo {
+                        key: key.clone(),
+                        typ: f.clone(),
+                        property_owner_id: member.property_owner_id.clone(),
+                        feature: member.feature.clone(),
+                    };
+
+                    member_map
+                        .entry(key.clone())
+                        .or_insert_with(Vec::new)
+                        .push(new_member);
+                }
+                continue;
+            }
+        }
         member_map.entry(key).or_insert_with(Vec::new).push(member);
     }
 

crates/emmylua_ls/src/handlers/rename/mod.rs

@@ -71,10 +71,8 @@ pub async fn on_prepare_rename_handler(
     let position = params.position;
     let semantic_model = analysis.compilation.get_semantic_model(file_id)?;
     let root = semantic_model.get_root();
-    let position_offset = {
-        let document = semantic_model.get_document();
-        document.get_offset(position.line as usize, position.character as usize)?
-    };
+    let document = semantic_model.get_document();
+    let position_offset = document.get_offset(position.line as usize, position.character as usize)?;
 
     if position_offset > root.syntax().text_range().end() {
         return None;
@@ -98,9 +96,9 @@ pub async fn on_prepare_rename_handler(
         token.kind().into(),
         LuaTokenKind::TkName | LuaTokenKind::TkInt | LuaTokenKind::TkString
     ) {
-        Some(PrepareRenameResponse::DefaultBehavior {
-            default_behavior: true,
-        })
+        let range = document.to_lsp_range(token.text_range())?;
+        let placeholder = token.text().to_string();
+        Some(PrepareRenameResponse::RangeWithPlaceholder { range, placeholder })
     } else {
         None
     }