From 77e148fcd410db6df6fed2078986a91fdb81c59c Mon Sep 17 00:00:00 2001
From: Sebastian Schmidt <isibboi@gmail.com>
Date: Fri, 28 May 2021 14:27:41 +0300
Subject: [PATCH] Ensure that Function implements Send and Sync.

Relates to #76
---
 src/function/mod.rs | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/function/mod.rs b/src/function/mod.rs
index 029b00e..21f27e5 100644
--- a/src/function/mod.rs
+++ b/src/function/mod.rs
@@ -41,3 +41,9 @@ impl fmt::Debug for Function {
         write!(f, "Function {{ [...] }}")
     }
 }
+
+/// A trait to ensure a type is `Send` and `Sync`.
+/// If implemented for a type, the crate will not compile if the type is not `Send` and `Sync`.
+trait IsSendAndSync: Send + Sync {}
+
+impl IsSendAndSync for Function {}