Use safe cast for fsReadDirSync impl to try to fix #664

Again, without a repo, I can't be 100% sure this is the root cause, but using a safe cast may very well fix the problem. It shouldn't make anything more broken at least.
microsoft · Mar 16, 2016 · df2e33a · df2e33a
1 parent e5e2e1f
commit df2e33a
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/Nodejs/Product/Analysis/Analysis/NodejsModuleBuilder.Specializations.cs b/Nodejs/Product/Analysis/Analysis/NodejsModuleBuilder.Specializations.cs
@@ -341,8 +341,8 @@ private static IAnalysisSet FsBasename(FunctionValue func, Node node, AnalysisUn
         }
 
         private static IAnalysisSet FsReadDirSync(FunctionValue func, Node node, AnalysisUnit unit, IAnalysisSet @this, IAnalysisSet[] args) {
-            CallNode call = (CallNode)node;
-            if (call.Arguments.Length == 1) {
+            var call = node as CallNode;
+            if (call != null && call.Arguments.Length == 1) {
                 var ee = new ExpressionEvaluator(unit);
                 IAnalysisSet arraySet;
                 ReadDirSyncArrayValue array;