Add assertion to verify layerRenderer is an instanceof ol.renderer.dom.Layer

2014-01-28 08:41:19 -05:00
parent b4d2ab5c13
commit dfe3927a12
1 changed files with 1 additions and 0 deletions
--- a/src/ol/renderer/dom/dommaprenderer.js
+++ b/src/ol/renderer/dom/dommaprenderer.js
@@ -95,6 +95,7 @@ ol.renderer.dom.Map.prototype.renderFrame = function(frameState) {
    layer = layersArray[i];
    layerRenderer = /** @type {ol.renderer.dom.Layer} */ (
        this.getLayerRenderer(layer));
+    goog.asserts.assertInstanceof(layerRenderer, ol.renderer.dom.Layer);
    goog.dom.insertChildAt(this.layersPane_, layerRenderer.getTarget(), i);
    layerState = frameState.layerStates[goog.getUid(layer)];
    if (layerState.sourceState == ol.source.State.READY) {