这是预期的行为还是错误?考虑以下特征(无论是类,都无所谓):
trait P[T] {
class Inner(val f: T => Unit = _ => println("nope"))
}
这是我所期望的:
scala> val p = new P[Int] {
| val inner = new Inner
| }
p: java.lang.Object with P[Int]{def inner: this.Inner} = $anon$1@12192a9
scala> p.inner.f(5)
nope
但是这个?
scala> val p = new P[Int] {
| val inner = new Inner() {
| println("some primary constructor code in here")
| }
| }
<console>:6: error: type mismatch;
found : (T) => Unit
required: (Int) => Unit
val inner = new Inner() {
^