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Java > Open Source Codes > org > javacc > parser > TreeWalkerOp


1 /*
2  * Copyright © 2002 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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22
23 package org.javacc.parser;
24
25 /**
26  * Objects of this type are passed to the tree walker
27  * routines in ExpansionTreeWalker.
28  */
29 public interface TreeWalkerOp {
30
31   /**
32    * When called at a particular node, this specifies to the
33    * tree walker if it should visit more nodes under this node.
34    */
35   boolean goDeeper(Expansion e);
36
37   /**
38    * When a node is visited, this method is invoked with the
39    * node as parameter.
40    */
41   void action(Expansion e);
42
43 }
44
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