scalaexpressions.scala

来自「JAVA 语言的函数式编程扩展」· SCALA 代码 · 共 12 行

package bug735;
trait ScalaExpressions {
  trait ExpressionFactory {   
    def foo = 10;
    def bar : Int;
  }
  val values : ValueFactory;
  trait ValueFactory extends ExpressionFactory {
    def bar = 42;
  }
}