Validate arguments

SonalBagdiya · Feb 6, 2013 · 22a009e · 22a009e
1 parent 26cc9a2
commit 22a009e
Showing 1 changed file with 9 additions and 0 deletions.
diff --git a/Diff/ViewModel/DiffMarginViewModel.cs b/Diff/ViewModel/DiffMarginViewModel.cs
@@ -21,6 +21,15 @@ public class DiffMarginViewModel : ViewModelBase
 
         public DiffMarginViewModel(DiffMargin margin, IWpfTextView textView, ITextDocumentFactoryService textDocumentFactoryService, IGitCommands gitCommands)
         {
+            if (margin == null)
+                throw new ArgumentNullException("margin");
+            if (textView == null)
+                throw new ArgumentNullException("textView");
+            if (textDocumentFactoryService == null)
+                throw new ArgumentNullException("textDocumentFactoryService");
+            if (gitCommands == null)
+                throw new ArgumentNullException("gitCommands");
+
             _margin = margin;
             _textView = textView;
             _gitCommands = gitCommands;