From d7b441fe50d89d0701e6ee37268a1a3a67583dc7 Mon Sep 17 00:00:00 2001
From: dxx <1827939333@qq.com>
Date: Thu, 8 Apr 2021 14:28:46 +0800
Subject: [PATCH] Fix error caused by empty string

---
 codegen/src/util.rs | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/codegen/src/util.rs b/codegen/src/util.rs
index 0890b23..5fa187c 100644
--- a/codegen/src/util.rs
+++ b/codegen/src/util.rs
@@ -137,7 +137,9 @@ pub fn parse_args(sig: &mut syn::Signature) -> Result<Vec<ReqArg>, syn::Error> {
                             // A literal, like the `"name"` in `#[param("name")]`
                             syn::NestedMeta::Lit(lit) => {
                                 if let syn::Lit::Str(lit) = lit {
-                                    name = lit.value();
+                                    if !lit.value().is_empty() {
+                                        name = lit.value();
+                                    }
                                 }
                             },
                             _=> {