Replace goog.isDefAndNotNull() with truthy checks

src/ol/format/gml/gml3format.js

@@ -643,7 +643,7 @@ ol.format.GML3.prototype.writePos_ = function(node, value, objectStack) {
   goog.asserts.assert(goog.isObject(context), 'context should be an Object');
   var srsName = context['srsName'];
   var axisOrientation = 'enu';
-  if (goog.isDefAndNotNull(srsName)) {
+  if (srsName) {
     axisOrientation = ol.proj.get(srsName).getAxisOrientation();
   }
   var point = value.getCoordinates();
@@ -666,7 +666,7 @@ ol.format.GML3.prototype.writePos_ = function(node, value, objectStack) {
  */
 ol.format.GML3.prototype.getCoords_ = function(point, opt_srsName) {
   var axisOrientation = 'enu';
-  if (goog.isDefAndNotNull(opt_srsName)) {
+  if (opt_srsName) {
     axisOrientation = ol.proj.get(opt_srsName).getAxisOrientation();
   }
   return ((axisOrientation.substr(0, 2) === 'en') ?
@@ -708,7 +708,7 @@ ol.format.GML3.prototype.writePoint_ = function(node, geometry, objectStack) {
   var context = objectStack[objectStack.length - 1];
   goog.asserts.assert(goog.isObject(context), 'context should be an Object');
   var srsName = context['srsName'];
-  if (goog.isDefAndNotNull(srsName)) {
+  if (srsName) {
     node.setAttribute('srsName', srsName);
   }
   var pos = ol.xml.createElementNS(node.namespaceURI, 'pos');
@@ -763,7 +763,7 @@ ol.format.GML3.prototype.writeLinearRing_ =
   var context = objectStack[objectStack.length - 1];
   goog.asserts.assert(goog.isObject(context), 'context should be an Object');
   var srsName = context['srsName'];
-  if (goog.isDefAndNotNull(srsName)) {
+  if (srsName) {
     node.setAttribute('srsName', srsName);
   }
   var posList = ol.xml.createElementNS(node.namespaceURI, 'posList');
@@ -864,7 +864,7 @@ ol.format.GML3.prototype.writeMultiSurfaceOrPolygon_ =
   goog.asserts.assert(goog.isObject(context), 'context should be an Object');
   var srsName = context['srsName'];
   var surface = context['surface'];
-  if (goog.isDefAndNotNull(srsName)) {
+  if (srsName) {
     node.setAttribute('srsName', srsName);
   }
   var polygons = geometry.getPolygons();
@@ -886,7 +886,7 @@ ol.format.GML3.prototype.writeMultiPoint_ = function(node, geometry,
   var context = objectStack[objectStack.length - 1];
   goog.asserts.assert(goog.isObject(context), 'context should be an Object');
   var srsName = context['srsName'];
-  if (goog.isDefAndNotNull(srsName)) {
+  if (srsName) {
     node.setAttribute('srsName', srsName);
   }
   var points = geometry.getPoints();
@@ -909,7 +909,7 @@ ol.format.GML3.prototype.writeMultiCurveOrLineString_ =
   goog.asserts.assert(goog.isObject(context), 'context should be an Object');
   var srsName = context['srsName'];
   var curve = context['curve'];
-  if (goog.isDefAndNotNull(srsName)) {
+  if (srsName) {
     node.setAttribute('srsName', srsName);
   }
   var lines = geometry.getLineStrings();

src/ol/format/gml/gmlbaseformat.js

@@ -180,7 +180,7 @@ ol.format.GMLBase.prototype.readGeometryElement = function(node, objectStack) {
   context['srsName'] = node.firstElementChild.getAttribute('srsName');
   var geometry = ol.xml.pushParseAndPop(/** @type {ol.geom.Geometry} */(null),
       this.GEOMETRY_PARSERS_, node, objectStack, this);
-  if (goog.isDefAndNotNull(geometry)) {
+  if (geometry) {
     return /** @type {ol.geom.Geometry} */ (
         ol.format.Feature.transformWithOptions(geometry, false, context));
   } else {
@@ -243,7 +243,7 @@ ol.format.GMLBase.prototype.readPoint = function(node, objectStack) {
   goog.asserts.assert(node.localName == 'Point', 'localName should be Point');
   var flatCoordinates =
       this.readFlatCoordinatesFromNode_(node, objectStack);
-  if (goog.isDefAndNotNull(flatCoordinates)) {
+  if (flatCoordinates) {
     var point = new ol.geom.Point(null);
     goog.asserts.assert(flatCoordinates.length == 3,
         'flatCoordinates should have a length of 3');
@@ -382,7 +382,7 @@ ol.format.GMLBase.prototype.readLineString = function(node, objectStack) {
       'localName should be LineString');
   var flatCoordinates =
       this.readFlatCoordinatesFromNode_(node, objectStack);
-  if (goog.isDefAndNotNull(flatCoordinates)) {
+  if (flatCoordinates) {
     var lineString = new ol.geom.LineString(null);
     lineString.setFlatCoordinates(ol.geom.GeometryLayout.XYZ, flatCoordinates);
     return lineString;
@@ -406,7 +406,7 @@ ol.format.GMLBase.prototype.readFlatLinearRing_ = function(node, objectStack) {
   var ring = ol.xml.pushParseAndPop(/** @type {Array.<number>} */(null),
       this.GEOMETRY_FLAT_COORDINATES_PARSERS_, node,
       objectStack, this);
-  if (goog.isDefAndNotNull(ring)) {
+  if (ring) {
     return ring;
   } else {
     return undefined;