[Debugger] Make sure Node isn't null in OnValueButtonActivated()

jstedfast · jstedfast · commit f365eb2ee2ae · 2019-11-05T15:46:16.000-05:00
Fixes https://devdiv.visualstudio.com/DevDiv/_workitems/edit/1011400/
diff --git a/main/src/addins/MonoDevelop.Debugger/MonoDevelop.Debugger/ObjectValue/Mac/MacDebuggerObjectValueView.cs b/main/src/addins/MonoDevelop.Debugger/MonoDevelop.Debugger/ObjectValue/Mac/MacDebuggerObjectValueView.cs
@@ -313,6 +313,9 @@ protected override void UpdateContents ()
 
 		void OnValueButtonActivated (object sender, EventArgs e)
 		{
+			if (Node == null)
+				return;
+
 			if (Node.IsEnumerable) {
 				if (Node is ShowMoreValuesObjectValueNode moreNode) {
 					TreeView.LoadMoreChildren (moreNode.EnumerableNode);

Original file line number	Diff line number	Diff line change
`@@ -313,6 +313,9 @@ protected override void UpdateContents ()`
`313`	`313`
`314`	`314`	`void OnValueButtonActivated (object sender, EventArgs e)`
`315`	`315`	`{`
	`316`	`+ if (Node == null)`
	`317`	`+ return;`
	`318`	`+`
`316`	`319`	`if (Node.IsEnumerable) {`
`317`	`320`	`if (Node is ShowMoreValuesObjectValueNode moreNode) {`
`318`	`321`	`TreeView.LoadMoreChildren (moreNode.EnumerableNode);`