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valueclasses.scala:3: error: only classes (not traits) are allowed to extend AnyVal
trait T extends AnyVal // fail
^
valueclasses.scala:6: error: value class may not be a member of another class
class Bar(x: Int) extends AnyVal // fail
^
valueclasses.scala:6: error: value class parameter must be a val and not be private[this]
class Bar(x: Int) extends AnyVal // fail
^
valueclasses.scala:8: error: value class may not be a local class
class Baz(x: Int) extends AnyVal // fail
^
valueclasses.scala:8: error: value class parameter must be a val and not be private[this]
class Baz(x: Int) extends AnyVal // fail
^
valueclasses.scala:12: error: value class needs to have exactly one val parameter
class V1 extends AnyVal // fail
^
valueclasses.scala:19: error: value class needs to have exactly one val parameter
class V6(val x: Int, val y: String) extends AnyVal // fail
^
valueclasses.scala:20: error: value class needs to have exactly one val parameter
class V7(val x: Int, private[this] val y: String) extends AnyVal // fail
^
valueclasses.scala:21: error: value class parameter must not be a var
class V8(var x: Int) extends AnyVal // fail
^
valueclasses.scala:24: error: field definition is not allowed in value class
val y = x // fail
^
valueclasses.scala:29: error: type parameter of value class may not be specialized
class V12[@specialized T, U](val x: (T, U)) extends AnyVal // fail
^
valueclasses.scala:31: error: value class parameter must be a val and not be private[this]
class V13(x: Int) extends AnyVal // fail
^
valueclasses.scala:33: error: value class parameter must be a val and not be private[this]
class V14(private[this] val x: Int) extends AnyVal // fail
^
valueclasses.scala:34: error: value class parameter must not be protected[this]
class V15(protected[this] val x: Int) extends AnyVal // fail
^
valueclasses.scala:36: error: value class needs to have exactly one val parameter
class V16()(val a: Any) extends AnyVal // fail, was allowed 2.10.x
^
15 errors found
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