From 30e8275059fc66ddc996513f60f536732378d6cf Mon Sep 17 00:00:00 2001
From: 魏曹先生 <1992414357@qq.com>
Date: Fri, 26 Jun 2026 07:22:38 +0800
Subject: feat(macros): Render ResultEmpty for non-structural types

---
 mingling_macros/src/lib.rs | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/mingling_macros/src/lib.rs b/mingling_macros/src/lib.rs
index c239a55..fdc2aaa 100644
--- a/mingling_macros/src/lib.rs
+++ b/mingling_macros/src/lib.rs
@@ -1838,7 +1838,13 @@ pub fn program_final_gen(_input: TokenStream) -> TokenStream {
         ) -> Result<::mingling::RenderResult, ::mingling::error::StructuralRendererSerializeError> {
             match any.member_id {
                 #(#structural_renderer_tokens)*
-                _ => Ok(::mingling::RenderResult::default()),
+                _ => {
+                    // Non-structural types: render ResultEmpty (which implements
+                    // StructuralData + Serialize) instead of producing nothing.
+                    let mut r = ::mingling::RenderResult::default();
+                    ::mingling::StructuralRenderer::render(&ResultEmpty, setting, &mut r)?;
+                    Ok(r)
+                }
             }
         }
     };
-- 
cgit