Remove null check

schuetzcarl · schuetzcarl · commit 9e510829bfcd · 2023-03-28T14:56:51.000+02:00
diff --git a/compiler/src/dotty/tools/dotc/transform/CheckUnused.scala b/compiler/src/dotty/tools/dotc/transform/CheckUnused.scala
@@ -142,7 +142,7 @@ class CheckUnused extends MiniPhase:
   override def prepareForAssign(tree: tpd.Assign)(using Context): Context =
     unusedDataApply{ ud =>
       val sym = tree.lhs.symbol
-      if sym != null && sym.exists then
+      if sym.exists then
         ud.registerSetVar(sym)
     }
 

Original file line number	Diff line number	Diff line change
`@@ -142,7 +142,7 @@ class CheckUnused extends MiniPhase:`
`142`	`142`	`override def prepareForAssign(tree: tpd.Assign)(using Context): Context =`
`143`	`143`	`unusedDataApply{ ud =>`
`144`	`144`	`val sym = tree.lhs.symbol`
`145`		`- if sym != null && sym.exists then`
	`145`	`+ if sym.exists then`
`146`	`146`	`ud.registerSetVar(sym)`
`147`	`147`	`}`
`148`	`148`