From 3fcd23dcdf0c8f8e32a1ae0b0eafd7640f63b10b Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Emilio=20Cobos=20=C3=81lvarez?= <emilio@crisal.io>
Date: Mon, 2 Sep 2019 11:55:28 +0200
Subject: [PATCH] style: Add a comment about a Send bound that may look
 confusing.

---
 components/style/scoped_tls.rs | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/components/style/scoped_tls.rs b/components/style/scoped_tls.rs
index b4eed7509c9..e1e5209a058 100644
--- a/components/style/scoped_tls.rs
+++ b/components/style/scoped_tls.rs
@@ -15,6 +15,9 @@ use std::ops::DerefMut;
 ///
 /// We use this on Servo to construct thread-local contexts, but clear them once
 /// we're done with restyling.
+///
+/// Note that the cleanup is done on the thread that owns the scoped TLS, thus
+/// the Send bound.
 pub struct ScopedTLS<'scope, T: Send> {
     pool: &'scope rayon::ThreadPool,
     slots: Box<[RefCell<Option<T>>]>,