Inline simple goog.isDef() calls

src/ol/source/imagevectorsource.js

@@ -166,7 +166,7 @@ ol.source.ImageVector.prototype.forEachFeatureAtCoordinate = function(
          * @return {?} Callback result.
          */
         function(feature) {
-          goog.asserts.assert(goog.isDef(feature), 'passed a feature');
+          goog.asserts.assert(feature !== undefined, 'passed a feature');
           var key = goog.getUid(feature).toString();
           if (!(key in features)) {
             features[key] = true;
@@ -290,7 +290,7 @@ ol.source.ImageVector.prototype.renderFeature_ =
  * @api stable
  */
 ol.source.ImageVector.prototype.setStyle = function(style) {
-  this.style_ = goog.isDef(style) ? style : ol.style.defaultStyleFunction;
+  this.style_ = style !== undefined ? style : ol.style.defaultStyleFunction;
   this.styleFunction_ = goog.isNull(style) ?
       undefined : ol.style.createStyleFunction(this.style_);
   this.changed();

src/ol/source/tilearcgisrestsource.js

@@ -173,7 +173,7 @@ ol.source.TileArcGISRest.prototype.getUrls = function() {
  * @api stable
  */
 ol.source.TileArcGISRest.prototype.setUrl = function(url) {
-  var urls = goog.isDef(url) ? ol.TileUrlFunction.expandUrl(url) : null;
+  var urls = url !== undefined ? ol.TileUrlFunction.expandUrl(url) : null;
   this.setUrls(urls);
 };
 

src/ol/source/tiledebugsource.js

@@ -48,7 +48,7 @@ goog.inherits(ol.DebugTile_, ol.Tile);
  * @inheritDoc
  */
 ol.DebugTile_.prototype.getImage = function(opt_context) {
-  var key = goog.isDef(opt_context) ? goog.getUid(opt_context) : -1;
+  var key = opt_context !== undefined ? goog.getUid(opt_context) : -1;
   if (key in this.canvasByContext_) {
     return this.canvasByContext_[key];
   } else {

src/ol/source/tileimagesource.js

@@ -99,8 +99,8 @@ ol.source.TileImage.prototype.getTile =
         this.tileUrlFunction(urlTileCoord, pixelRatio, projection);
     var tile = new this.tileClass(
         tileCoord,
-        goog.isDef(tileUrl) ? ol.TileState.IDLE : ol.TileState.EMPTY,
-        goog.isDef(tileUrl) ? tileUrl : '',
+        tileUrl !== undefined ? ol.TileState.IDLE : ol.TileState.EMPTY,
+        tileUrl !== undefined ? tileUrl : '',
         this.crossOrigin,
         this.tileLoadFunction);
     goog.events.listen(tile, goog.events.EventType.CHANGE,

src/ol/source/tilejsonsource.js

@@ -79,7 +79,7 @@ ol.source.TileJSON.prototype.handleTileJSONResponse = function(tileJSON) {
 
   if (goog.isDef(tileJSON.attribution) &&
       goog.isNull(this.getAttributions())) {
-    var attributionExtent = goog.isDef(extent) ?
+    var attributionExtent = extent !== undefined ?
         extent : epsg4326Projection.getExtent();
     /** @type {Object.<string, Array.<ol.TileRange>>} */
     var tileRanges = {};

src/ol/source/tilesource.js

@@ -227,7 +227,7 @@ ol.source.Tile.prototype.getTilePixelSize =
  */
 ol.source.Tile.prototype.getTileCoordForTileUrlFunction =
     function(tileCoord, opt_projection) {
-  var projection = goog.isDef(opt_projection) ?
+  var projection = opt_projection !== undefined ?
       opt_projection : this.getProjection();
   var tileGrid = this.getTileGridForProjection(projection);
   goog.asserts.assert(!goog.isNull(tileGrid), 'tile grid needed');

src/ol/source/tileutfgridsource.js

@@ -139,7 +139,7 @@ ol.source.TileUTFGrid.prototype.handleTileJSONResponse = function(tileJSON) {
   this.tileUrlFunction_ = ol.TileUrlFunction.createFromTemplates(grids);
 
   if (tileJSON.attribution !== undefined) {
-    var attributionExtent = goog.isDef(extent) ?
+    var attributionExtent = extent !== undefined ?
         extent : epsg4326Projection.getExtent();
     /** @type {Object.<string, Array.<ol.TileRange>>} */
     var tileRanges = {};
@@ -178,8 +178,8 @@ ol.source.TileUTFGrid.prototype.getTile =
     var tileUrl = this.tileUrlFunction_(urlTileCoord, pixelRatio, projection);
     var tile = new ol.source.TileUTFGridTile_(
         tileCoord,
-        goog.isDef(tileUrl) ? ol.TileState.IDLE : ol.TileState.EMPTY,
-        goog.isDef(tileUrl) ? tileUrl : '',
+        tileUrl !== undefined ? ol.TileState.IDLE : ol.TileState.EMPTY,
+        tileUrl !== undefined ? tileUrl : '',
         this.tileGrid.getTileCoordExtent(tileCoord),
         this.preemptive_);
     this.tileCache.set(tileCoordKey, tile);

src/ol/source/tilewmssource.js

@@ -337,7 +337,7 @@ ol.source.TileWMS.prototype.resetCoordKeyPrefix_ = function() {
  * @api stable
  */
 ol.source.TileWMS.prototype.setUrl = function(url) {
-  var urls = goog.isDef(url) ? ol.TileUrlFunction.expandUrl(url) : null;
+  var urls = url !== undefined ? ol.TileUrlFunction.expandUrl(url) : null;
   this.setUrls(urls);
 };
 

src/ol/source/vectorsource.js

@@ -572,7 +572,7 @@ ol.source.Vector.prototype.getFeatures = function() {
           features, goog.object.getValues(this.nullGeometryFeatures_));
     }
   }
-  goog.asserts.assert(goog.isDef(features),
+  goog.asserts.assert(features !== undefined,
       'Neither featuresRtree_ nor featuresCollection_ are available');
   return features;
 };
@@ -692,7 +692,7 @@ ol.source.Vector.prototype.getExtent = function() {
  */
 ol.source.Vector.prototype.getFeatureById = function(id) {
   var feature = this.idIndex_[id.toString()];
-  return goog.isDef(feature) ? feature : null;
+  return feature !== undefined ? feature : null;
 };
 
 

src/ol/source/wmtssource.js

@@ -410,7 +410,7 @@ ol.source.WMTS.optionsFromCapabilities = function(wmtsCap, config) {
       } else {
         value = elt['values'][0];
       }
-      goog.asserts.assert(goog.isDef(value), 'value could be found');
+      goog.asserts.assert(value !== undefined, 'value could be found');
       dimensions[key] = value;
     });
   }
@@ -454,7 +454,7 @@ ol.source.WMTS.optionsFromCapabilities = function(wmtsCap, config) {
   /** @type {!Array.<string>} */
   var urls = [];
   var requestEncoding = config['requestEncoding'];
-  requestEncoding = goog.isDef(requestEncoding) ? requestEncoding : '';
+  requestEncoding = requestEncoding !== undefined ? requestEncoding : '';
 
   goog.asserts.assert(
       goog.array.contains(['REST', 'RESTful', 'KVP', ''], requestEncoding),

src/ol/source/zoomifysource.js

@@ -165,7 +165,8 @@ goog.inherits(ol.source.ZoomifyTile_, ol.ImageTile);
  */
 ol.source.ZoomifyTile_.prototype.getImage = function(opt_context) {
   var tileSize = ol.DEFAULT_TILE_SIZE;
-  var key = goog.isDef(opt_context) ? goog.getUid(opt_context).toString() : '';
+  var key = opt_context !== undefined ?
+      goog.getUid(opt_context).toString() : '';
   if (key in this.zoomifyImageByContext_) {
     return this.zoomifyImageByContext_[key];
   } else {