Use 'is' operator per IDE code analysis

Chris Martinez · commonsensesoftware · commit 04a5485f37cf · 2018-05-18T07:48:35.000-07:00
diff --git a/src/Microsoft.AspNetCore.Mvc.Versioning/Versioning/ActionDescriptorMatch.cs b/src/Microsoft.AspNetCore.Mvc.Versioning/Versioning/ActionDescriptorMatch.cs
@@ -64,11 +64,11 @@ public ActionDescriptorMatch( ActionDescriptor action, RouteData routeData )
         /// <returns>True if the objects are equal; otherwise, false.</returns>
         public static bool operator ==( ActionDescriptorMatch match1, ActionDescriptorMatch match2 )
         {
-            if ( ReferenceEquals( match1, null ) )
+            if ( match1 is null )
             {
-                return ReferenceEquals( match2, null );
+                return match2 is null;
             }
-            else if ( ReferenceEquals( match2, null ) )
+            else if ( match2 is null )
             {
                 return false;
             }
@@ -84,11 +84,11 @@ public ActionDescriptorMatch( ActionDescriptor action, RouteData routeData )
         /// <returns>True if the objects are not equal; otherwise, false.</returns>
         public static bool operator !=( ActionDescriptorMatch match1, ActionDescriptorMatch match2 )
         {
-            if ( ReferenceEquals( match1, null ) )
+            if ( match1 is null )
             {
-                return !ReferenceEquals( match2, null );
+                return !( match2 is null );
             }
-            else if ( ReferenceEquals( match2, null ) )
+            else if ( match2 is null )
             {
                 return true;
             }

Original file line number	Diff line number	Diff line change
`@@ -64,11 +64,11 @@ public ActionDescriptorMatch( ActionDescriptor action, RouteData routeData )`
`64`	`64`	`/// <returns>True if the objects are equal; otherwise, false.</returns>`
`65`	`65`	`public static bool operator ==( ActionDescriptorMatch match1, ActionDescriptorMatch match2 )`
`66`	`66`	`{`
`67`		`- if ( ReferenceEquals( match1, null ) )`
	`67`	`+ if ( match1 is null )`
`68`	`68`	`{`
`69`		`- return ReferenceEquals( match2, null );`
	`69`	`+ return match2 is null;`
`70`	`70`	`}`
`71`		`- else if ( ReferenceEquals( match2, null ) )`
	`71`	`+ else if ( match2 is null )`
`72`	`72`	`{`
`73`	`73`	`return false;`
`74`	`74`	`}`
`@@ -84,11 +84,11 @@ public ActionDescriptorMatch( ActionDescriptor action, RouteData routeData )`
`84`	`84`	`/// <returns>True if the objects are not equal; otherwise, false.</returns>`
`85`	`85`	`public static bool operator !=( ActionDescriptorMatch match1, ActionDescriptorMatch match2 )`
`86`	`86`	`{`
`87`		`- if ( ReferenceEquals( match1, null ) )`
	`87`	`+ if ( match1 is null )`
`88`	`88`	`{`
`89`		`- return !ReferenceEquals( match2, null );`
	`89`	`+ return !( match2 is null );`
`90`	`90`	`}`
`91`		`- else if ( ReferenceEquals( match2, null ) )`
	`91`	`+ else if ( match2 is null )`
`92`	`92`	`{`
`93`	`93`	`return true;`
`94`	`94`	`}`