Add experimental.packageObjectValues language setting (#23001)

odersky · web-flow · commit 51adb13533b7 · 2025-04-23T15:48:12.000+02:00
By an ovsersight this was available only as a language import. Fixes #22830
diff --git a/compiler/src/dotty/tools/dotc/config/Feature.scala b/compiler/src/dotty/tools/dotc/config/Feature.scala
@@ -61,7 +61,8 @@ object Feature:
     (pureFunctions, "Enable pure functions for capture checking"),
     (captureChecking, "Enable experimental capture checking"),
     (into, "Allow into modifier on parameter types"),
-    (modularity, "Enable experimental modularity features")
+    (modularity, "Enable experimental modularity features"),
+    (packageObjectValues, "Enable experimental package objects as values"),
   )
 
   // legacy language features from Scala 2 that are no longer supported.
diff --git a/tests/pos/packageObjectValues.scala b/tests/pos/packageObjectValues.scala
@@ -0,0 +1,7 @@
+//> using options -language:experimental.packageObjectValues
+
+package object p { }
+
+object Test:
+  val x = p
+

Original file line number	Diff line number	Diff line change
`@@ -61,7 +61,8 @@ object Feature:`
`61`	`61`	`(pureFunctions, "Enable pure functions for capture checking"),`
`62`	`62`	`(captureChecking, "Enable experimental capture checking"),`
`63`	`63`	`(into, "Allow into modifier on parameter types"),`
`64`		`- (modularity, "Enable experimental modularity features")`
	`64`	`+ (modularity, "Enable experimental modularity features"),`
	`65`	`+ (packageObjectValues, "Enable experimental package objects as values"),`
`65`	`66`	`)`
`66`	`67`
`67`	`68`	`// legacy language features from Scala 2 that are no longer supported.`