From b70295c813e7d90aacf81363973195960b457b3d Mon Sep 17 00:00:00 2001
From: Kamen Mladenov <kamen@syndamia.com>
Date: Fri, 28 Feb 2025 11:57:50 +0200
Subject: fix(guests_macro/parse_fn): Return unit ret type when main doesn't
 return anything

---
 guests_macro/src/parse_fn.rs | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'guests_macro/src/parse_fn.rs')

diff --git a/guests_macro/src/parse_fn.rs b/guests_macro/src/parse_fn.rs
index 2db81fa..3db397c 100644
--- a/guests_macro/src/parse_fn.rs
+++ b/guests_macro/src/parse_fn.rs
@@ -50,6 +50,9 @@ pub fn split_fn(item: &TokenStream) -> (TokenStream, TokenStream, TokenStream) {
         out.extend([tt].into_iter());
     }
 
+    if ret.is_empty() {
+        ret.extend([TokenTree::Group(Group::new(Delimiter::Parenthesis, TokenStream::new()))].into_iter());
+    }
     (name, args, ret)
 }
 
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