From be13ca635ee2ac50b753175f1a3fcd88c3a77201 Mon Sep 17 00:00:00 2001
From: Jachym Cepicky <jachym@users.noreply.github.com>
Date: Tue, 4 Mar 2014 13:01:27 +0100
Subject: [PATCH] setState never occures

Two changes for better parsing of non-existing input sources:

1 - use goog.isDefAndNotNull(source) in the condition (null is also considered as valid source now)
2 - call setState before goog.asserts.fail
---
 src/ol/source/vectorfilesource.js | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/ol/source/vectorfilesource.js b/src/ol/source/vectorfilesource.js
index d0f972800b..d003037170 100644
--- a/src/ol/source/vectorfilesource.js
+++ b/src/ol/source/vectorfilesource.js
@@ -128,11 +128,11 @@ ol.source.VectorFile.prototype.handleXhrIo_ = function(event) {
       goog.asserts.fail();
     }
     goog.dispose(xhrIo);
-    if (goog.isDef(source)) {
+    if (goog.isDefAndNotNull(source)) {
       this.readFeatures_(source);
     } else {
-      goog.asserts.fail();
       this.setState(ol.source.State.ERROR);
+      goog.asserts.fail();
     }
   } else {
     this.setState(ol.source.State.ERROR);