From 196e145c960611737e6d229199255d65ebc712d5 Mon Sep 17 00:00:00 2001
From: Stephen Chung <Stephen.Chung@intexact.com>
Date: Sun, 23 Aug 2020 16:29:32 +0800
Subject: [PATCH] Derive standard traits for Limits.

---
 src/engine.rs | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/engine.rs b/src/engine.rs
index 5c4fdaee..70e93568 100644
--- a/src/engine.rs
+++ b/src/engine.rs
@@ -340,6 +340,7 @@ pub fn get_script_function_by_signature<'a>(
 ///
 /// This type is volatile and may change.
 #[cfg(not(feature = "unchecked"))]
+#[derive(Debug, Clone, Eq, PartialEq, Hash)]
 pub struct Limits {
     /// Maximum levels of call-stack to prevent infinite recursion.
     ///
@@ -377,6 +378,7 @@ pub struct Limits {
 /// ```
 ///
 /// Currently, `Engine` is neither `Send` nor `Sync`. Use the `sync` feature to make it `Send + Sync`.
+#[derive(Clone)]
 pub struct Engine {
     /// A unique ID identifying this scripting `Engine`.
     pub id: Option<String>,