Improved comment explaining logic

milessabin · milessabin · commit 6f8ed88f8704 · 2019-05-30T11:38:00.000+01:00
diff --git a/compiler/src/dotty/tools/dotc/ast/Desugar.scala b/compiler/src/dotty/tools/dotc/ast/Desugar.scala
@@ -1448,7 +1448,7 @@ object desugar {
               ))
         }
       case _ =>
-        EmptyTree //may happen for erroneous input
+        EmptyTree // may happen for erroneous input. An error will already have been reported.
     }
 
     // begin desugar

Original file line number	Diff line number	Diff line change
`@@ -1448,7 +1448,7 @@ object desugar {`
`1448`	`1448`	`))`
`1449`	`1449`	`}`
`1450`	`1450`	`case _ =>`
`1451`		`- EmptyTree //may happen for erroneous input`
	`1451`	`+ EmptyTree // may happen for erroneous input. An error will already have been reported.`
`1452`	`1452`	`}`
`1453`	`1453`
`1454`	`1454`	`// begin desugar`