From 435d4d9f251013373c31261dca373c08b9ded94a Mon Sep 17 00:00:00 2001
From: Anthony Ramine <n.oxyde@gmail.com>
Date: Tue, 2 Oct 2018 11:30:06 +0200
Subject: [PATCH] Implement JSTraceable for (A, B, C, D) instead of (T, T, T,
 T)

---
 components/script/dom/bindings/trace.rs | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/components/script/dom/bindings/trace.rs b/components/script/dom/bindings/trace.rs
index 2c395094e7f..22637b920fb 100644
--- a/components/script/dom/bindings/trace.rs
+++ b/components/script/dom/bindings/trace.rs
@@ -261,7 +261,13 @@ unsafe impl<T: JSTraceable> JSTraceable for VecDeque<T> {
     }
 }
 
-unsafe impl<T: JSTraceable> JSTraceable for (T, T, T, T) {
+unsafe impl<A, B, C, D> JSTraceable for (A, B, C, D)
+where
+    A: JSTraceable,
+    B: JSTraceable,
+    C: JSTraceable,
+    D: JSTraceable,
+{
     unsafe fn trace(&self, trc: *mut JSTracer) {
         self.0.trace(trc);
         self.1.trace(trc);