接口 TreeVisitorAction


  • public interface TreeVisitorAction
    How to execute code for node t when a visitor visits node t. Execute pre() before visiting children and execute post() after visiting children.
    • 方法概要

      所有方法 实例方法 抽象方法 
      修饰符和类型 方法 说明
      java.lang.Object post​(java.lang.Object t)
      Execute an action after visiting children of t.
      java.lang.Object pre​(java.lang.Object t)
      Execute an action before visiting children of t.
    • 方法详细资料

      • pre

        java.lang.Object pre​(java.lang.Object t)
        Execute an action before visiting children of t. Return t or a rewritten t. It is up to the visitor to decide what to do with the return value. Children of returned value will be visited if using TreeVisitor.visit().
      • post

        java.lang.Object post​(java.lang.Object t)
        Execute an action after visiting children of t. Return t or a rewritten t. It is up to the visitor to decide what to do with the return value.