t0699.check

来自「JAVA 语言的函数式编程扩展」· CHECK 代码 · 共 11 行

B.scala:2: error: illegal inheritance from sealed trait T
  trait T1 extends A.T
                     ^
B.scala:3: error: illegal inheritance from sealed class C
  trait T2 extends A.C
                     ^
B.scala:4: error: illegal inheritance from sealed class C
  class C1 extends A.C
                     ^
three errors found