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seraphr/A.scala

Created June 26, 2012 17:02
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A.scala
// 間違ってたので書換
// 自己参照する型引数を持つtraitを定義
trait A[_E, _A <: A[_A]]{
def m: _A = this.asInstanceOf[_A]
}
// mixin
class B[_E] extends A[_E, B[_E]]
Raw
use.java
// Java側から、Bのmメソッドを呼び出すと、実行時にjava.lang.NoSuchMethodError
new B<String>().m();
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