Package org.eclipse.persistence.internal.libraries.antlr.runtime.tree

Interface 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.

    • Method Summary

      All Methods Instance Methods Abstract Methods 
      Modifier and Type Method Description
      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.

    • Method Detail

      • 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.