Optimize PlainFile.equals

odersky · odersky · commit c03e31bcbc73 · 2019-01-15T14:01:06.000+01:00
diff --git a/compiler/src/dotty/tools/io/PlainFile.scala b/compiler/src/dotty/tools/io/PlainFile.scala
@@ -47,7 +47,7 @@ class PlainFile(val givenPath: Path) extends AbstractFile {
 
   override def hashCode(): Int = System.identityHashCode(absolutePath)
   override def equals(that: Any): Boolean = that match {
-    case x: PlainFile => absolutePath == x.absolutePath
+    case x: PlainFile => absolutePath `eq` x.absolutePath
     case _            => false
   }
 

Original file line number	Diff line number	Diff line change
`@@ -47,7 +47,7 @@ class PlainFile(val givenPath: Path) extends AbstractFile {`
`47`	`47`
`48`	`48`	`override def hashCode(): Int = System.identityHashCode(absolutePath)`
`49`	`49`	`override def equals(that: Any): Boolean = that match {`
`50`		`- case x: PlainFile => absolutePath == x.absolutePath`
	`50`	+ case x: PlainFile => absolutePath `eq` x.absolutePath
`51`	`51`	`case _ => false`
`52`	`52`	`}`
`53`	`53`