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class Foo {
class B(val a: Int) extends AnyVal // error: value class may not be a member of another class
}
class VCwithBadMembers(val a: Int) extends AnyVal {
def this() = this(1) // error: value class may not define secondary constructor
var x = 0 // error: value class may not define non-parameter field
val y = 2 // error: value class may not define non-parameter field
println("hi") // error: value class may not contain initialization statements
}
object Test {
class B(val a: Int) extends AnyVal // ok
def f = {
class C(val a: Int) extends AnyVal // error: value class may not be a local class
new C(1)
}
class B1(val b: Int) extends B(b) // error: cannot extend final class B
// class D extends B( { class E(val a: Int) extends AnyVal; new E(1) } )
}
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