Fix null reference exception error on startup

SajjadAlipour · soheilpro · commit da4529abe771 · 2021-11-13T09:42:02.000+08:00
diff --git a/Projects/Package/Sources/Xinq/XinqEditorPane.cs b/Projects/Package/Sources/Xinq/XinqEditorPane.cs
@@ -142,14 +142,14 @@ public int GetGuidEditorType(out Guid pClassID)
 
         public int IsDocDataDirty(out int pfDirty)
         {
-            pfDirty = _document.IsDirty ? 1 : 0;
+            pfDirty = _document?.IsDirty == true ? 1 : 0;
 
             return VSConstants.S_OK;
         }
 
         public int IsDocDataReadOnly(out int pfReadOnly)
         {
-            pfReadOnly = _document.IsReadOnly ? 1 : 0;
+            pfReadOnly = _document?.IsReadOnly == true ? 1 : 0;
 
             return VSConstants.S_OK;
         }

Original file line number	Diff line number	Diff line change
`@@ -142,14 +142,14 @@ public int GetGuidEditorType(out Guid pClassID)`
`142`	`142`
`143`	`143`	`public int IsDocDataDirty(out int pfDirty)`
`144`	`144`	`{`
`145`		`- pfDirty = _document.IsDirty ? 1 : 0;`
	`145`	`+ pfDirty = _document?.IsDirty == true ? 1 : 0;`
`146`	`146`
`147`	`147`	`return VSConstants.S_OK;`
`148`	`148`	`}`
`149`	`149`
`150`	`150`	`public int IsDocDataReadOnly(out int pfReadOnly)`
`151`	`151`	`{`
`152`		`- pfReadOnly = _document.IsReadOnly ? 1 : 0;`
	`152`	`+ pfReadOnly = _document?.IsReadOnly == true ? 1 : 0;`
`153`	`153`
`154`	`154`	`return VSConstants.S_OK;`
`155`	`155`	`}`