From 34373349420a7b8cf0db530a46048049295b588d Mon Sep 17 00:00:00 2001
From: Peter Burns <rictic@google.com>
Date: Mon, 22 Apr 2019 16:13:25 -0700
Subject: [PATCH] Cast GestureEventListeners.

This improves the closure compiler type checking of GestureEventListeners. Upstreaming of cl/239878806
---
 lib/mixins/gesture-event-listeners.js | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/lib/mixins/gesture-event-listeners.js b/lib/mixins/gesture-event-listeners.js
index 04ad6efed8..b509e8db87 100644
--- a/lib/mixins/gesture-event-listeners.js
+++ b/lib/mixins/gesture-event-listeners.js
@@ -27,7 +27,7 @@ import { addListener, removeListener } from '../utils/gestures.js';
  *   cross-platform
  * gesture events to nodes
  */
-export const GestureEventListeners = dedupingMixin(
+const _GestureEventListeners = dedupingMixin(
     /**
      * @template T
      * @param {function(new:T)} superClass Class to apply mixin to.
@@ -73,3 +73,14 @@ export const GestureEventListeners = dedupingMixin(
 
       return GestureEventListeners;
     });
+
+// Somehow _GestureEventListeners is incorrectly typed as *. For now add this
+// cast.
+/**
+ * @template T
+ * @param {function(new:T)} superClass Class to apply mixin to.
+ * @return {function(new:T)} superClass with mixin applied.
+ */
+export const GestureEventListeners = function(superClass) {
+  return _GestureEventListeners(superClass);
+};