修改路由错误信息

macro/src/route.rs

@@ -18,7 +18,7 @@ struct Args {
 impl Parse for Args {
     fn parse(input: ParseStream) -> syn::parse::Result<Self> {
         let vars = Punctuated::<syn::Expr, syn::Token![,]>::parse_terminated(input)?;
-        
+
         Ok(Args {
             vars: vars.into_iter().collect(),
         })
@@ -31,7 +31,7 @@ impl Args {
             Some(var) => Ok(var.clone()),
             None => return Err(syn::Error::new(
                 Span::call_site().into(),
-                "No Route was provided"
+                "route must have one argument"
             ))
         }
     }
@@ -41,26 +41,26 @@ impl Args {
 pub fn gen_route(attr: TokenStream, item: TokenStream) -> TokenStream {
     let args = parse_macro_input!(attr as Args);
     let func = parse_macro_input!(item as ItemFn);
-    
+
     let vis = func.vis.clone();
     let ident = func.sig.ident.clone();
-    
+
     let method = args.get_arg(0).unwrap();
     let route = args.get_arg(1).unwrap();
 
     let expanded = quote! {
         #[allow(non_camel_case_types)]
         #vis struct #ident;
-        
+
         impl #ident {
             #vis fn route() -> axum::Router {
                 #func
-                
+
                 axum::Router::new().route(#route, #method (#ident))
             }
         }
     };
-    
+
     expanded.into()
 }