From b9d9bea28a86ff8097bb52f0398143692aedb5b9 Mon Sep 17 00:00:00 2001
From: kyren <kerriganw@gmail.com>
Date: Wed, 7 Feb 2018 16:51:24 -0500
Subject: [PATCH] slightly faster, less obnoxious scope drop

---
 src/lua.rs | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/src/lua.rs b/src/lua.rs
index 588a0b2..a0320e6 100644
--- a/src/lua.rs
+++ b/src/lua.rs
@@ -1101,10 +1101,12 @@ impl<'lua> Drop for Scope<'lua> {
         // can be sure that all of the userdata in Lua is actually invalidated.
 
         let state = self.lua.state;
-        let mut drops = Vec::new();
-        for mut destructor in self.destructors.get_mut().drain(..) {
-            drops.push(destructor(state));
-        }
+        let to_drop = self.destructors
+            .get_mut()
+            .drain(..)
+            .map(|mut destructor| destructor(state))
+            .collect::<Vec<_>>();
+        drop(to_drop);
     }
 }