diff --git a/frb_codegen/src/library/codegen/parser/function_parser/argument.rs b/frb_codegen/src/library/codegen/parser/function_parser/argument.rs
index a4563f3160..8b27352fa5 100644
--- a/frb_codegen/src/library/codegen/parser/function_parser/argument.rs
+++ b/frb_codegen/src/library/codegen/parser/function_parser/argument.rs
@@ -2,6 +2,7 @@ use crate::codegen::ir::field::{IrField, IrFieldSettings};
 use crate::codegen::ir::func::{IrFuncMode, IrFuncOwnerInfo};
 use crate::codegen::ir::ident::IrIdent;
 use crate::codegen::ir::ty::boxed::IrTypeBoxed;
+use crate::codegen::ir::ty::rust_auto_opaque::OwnershipMode;
 use crate::codegen::ir::ty::IrType;
 use crate::codegen::ir::ty::IrType::Boxed;
 use crate::codegen::parser::attribute_parser::FrbAttributes;
@@ -186,13 +187,21 @@ fn parse_name_from_pat_type(pat_type: &PatType) -> anyhow::Result<String> {
 }
 
 fn generate_ref_type_considering_reference(raw: &str, receiver: &Receiver) -> String {
+    match parse_receiver_ownership_mode(receiver) {
+        OwnershipMode::Owned => raw.to_owned(),
+        OwnershipMode::RefMut => format!("&mut {raw}"),
+        OwnershipMode::Ref => format!("&{raw}"),
+    }
+}
+
+fn parse_receiver_ownership_mode(receiver: &Receiver) -> OwnershipMode {
     if receiver.reference.is_some() {
         if receiver.mutability.is_some() {
-            format!("&mut {raw}")
+            OwnershipMode::RefMut
         } else {
-            format!("&{raw}")
+            OwnershipMode::Ref
         }
     } else {
-        raw.to_owned()
+        OwnershipMode::Owned
     }
 }