Improve type checking in ol.source.WMTS

2013-04-30 21:34:23 +02:00
parent 6e1f049456
commit 0e69af847e
1 changed files with 26 additions and 21 deletions
@@ -73,7 +73,12 @@ ol.source.WMTS = function(options) {
   * @return {ol.TileUrlFunctionType} Tile URL function.
   */
  function createFromWMTSTemplate(template) {
-    return function(tileCoord) {
+    return (
+        /**
+         * @param {ol.TileCoord} tileCoord Tile coordinate.
+         * @return {string|undefined} Tile URL.
+         */
+        function(tileCoord) {
          if (goog.isNull(tileCoord)) {
            return undefined;
          } else {
@@ -93,7 +98,7 @@ ol.source.WMTS = function(options) {
            }
            return url;
          }
-    };
+        });
  }

  var tileUrlFunction = ol.TileUrlFunction.nullTileUrlFunction;