From 1fbefcab643555d6c3f2d1d0e02c019b7d9f1348 Mon Sep 17 00:00:00 2001
From: William Wall <wwall@caci.com>
Date: Tue, 18 Sep 2018 10:38:23 -0600
Subject: [PATCH] Explicitly define type of 'this'

I'm not entirely sure that I like this pattern, but there does not
appear to be a better option since TypeScript would recommend:

  function(this: SomeClass, ...)

tsdoc does not appear to support an associated annotation for the
function a la @this {SomeClass}.
---
 src/ol/Tile.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/ol/Tile.js b/src/ol/Tile.js
index 9bae2a8914..1aa36a01ca 100644
--- a/src/ol/Tile.js
+++ b/src/ol/Tile.js
@@ -180,7 +180,7 @@ class Tile extends EventTarget {
     }
 
     let tile = this.interimTile;
-    let prev = this;
+    let prev = /** @type {Tile} */ (this);
 
     do {
       if (tile.getState() == TileState.LOADED) {