From 8c61dbef8ae65202020d0869f3bdb1ac1e2f16b5 Mon Sep 17 00:00:00 2001
From: Frederic Junod <frederic.junod@camptocamp.com>
Date: Wed, 8 Jan 2014 11:38:12 +0100
Subject: [PATCH 1/2] Use ol.TileCoord.createOrUpdate function

---
 src/ol/tilegrid/xyztilegrid.js     | 9 +--------
 src/ol/tilegrid/zoomifytilegrid.js | 9 +--------
 2 files changed, 2 insertions(+), 16 deletions(-)

diff --git a/src/ol/tilegrid/xyztilegrid.js b/src/ol/tilegrid/xyztilegrid.js
index 239e282bc8..53c8a23f22 100644
--- a/src/ol/tilegrid/xyztilegrid.js
+++ b/src/ol/tilegrid/xyztilegrid.js
@@ -89,14 +89,7 @@ ol.tilegrid.XYZ.prototype.createTileCoordTransform = function(opt_options) {
             return null;
           }
         }
-        if (goog.isDef(opt_tileCoord)) {
-          opt_tileCoord.z = z;
-          opt_tileCoord.x = x;
-          opt_tileCoord.y = -y - 1;
-          return opt_tileCoord;
-        } else {
-          return new ol.TileCoord(z, x, -y - 1);
-        }
+        return ol.TileCoord.createOrUpdate(z, x, -y - 1, opt_tileCoord);
       });
 };
 
diff --git a/src/ol/tilegrid/zoomifytilegrid.js b/src/ol/tilegrid/zoomifytilegrid.js
index 115f1734c8..6bf221c8fd 100644
--- a/src/ol/tilegrid/zoomifytilegrid.js
+++ b/src/ol/tilegrid/zoomifytilegrid.js
@@ -74,13 +74,6 @@ ol.tilegrid.Zoomify.prototype.createTileCoordTransform = function(opt_options) {
             return null;
           }
         }
-        if (goog.isDef(opt_tileCoord)) {
-          opt_tileCoord.z = z;
-          opt_tileCoord.x = x;
-          opt_tileCoord.y = -y - 1;
-          return opt_tileCoord;
-        } else {
-          return new ol.TileCoord(z, x, -y - 1);
-        }
+        return ol.TileCoord.createOrUpdate(z, x, -y - 1, opt_tileCoord);
       });
 };

From 34e75b3d9dc21a2b3ea944ba6a3de6d30a89a4ca Mon Sep 17 00:00:00 2001
From: Frederic Junod <frederic.junod@camptocamp.com>
Date: Wed, 8 Jan 2014 11:48:15 +0100
Subject: [PATCH 2/2] Add @struct annotation to ol.TileCoord class

---
 src/ol/tilecoord.js | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/ol/tilecoord.js b/src/ol/tilecoord.js
index 2cee206180..013cc5af2c 100644
--- a/src/ol/tilecoord.js
+++ b/src/ol/tilecoord.js
@@ -21,6 +21,7 @@ ol.QuadKeyCharCode = {
  * @param {number} z Zoom level.
  * @param {number} x X.
  * @param {number} y Y.
+ * @struct
  */
 ol.TileCoord = function(z, x, y) {