From aaa9001d99b7846da0cd40afca06e7c457e711d6 Mon Sep 17 00:00:00 2001
From: 魏曹先生 <1992414357@qq.com>
Date: Sun, 29 Mar 2026 14:50:59 +0800
Subject: Add README and license files to project structure

---
 mingling_macros/src/chain.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'mingling_macros/src/chain.rs')

diff --git a/mingling_macros/src/chain.rs b/mingling_macros/src/chain.rs
index 9ef4ae0..ad74c5c 100644
--- a/mingling_macros/src/chain.rs
+++ b/mingling_macros/src/chain.rs
@@ -64,7 +64,7 @@ pub fn chain_attr(item: TokenStream) -> TokenStream {
     let input_fn = parse_macro_input!(item as ItemFn);
 
     // Validate the function
-    if !input_fn.sig.asyncness.is_some() {
+    if input_fn.sig.asyncness.is_none() {
         return syn::Error::new(input_fn.sig.span(), "Chain function must be async")
             .to_compile_error()
             .into();
-- 
cgit