Add message to assertions.

2015-03-30 22:50:15 +02:00
parent 2c40d74a15
commit fb9ba22c30
45 changed files with 394 additions and 221 deletions
--- a/src/ol/source/imagevectorsource.js
+++ b/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));
+          goog.asserts.assert(goog.isDef(feature), 'passed a feature');
          var key = goog.getUid(feature).toString();
          if (!(key in features)) {
            features[key] = true;