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70 lines
2.1 KiB
70 lines
2.1 KiB
/*
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* This file is part of a Java port of the program ltl2dstar
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* (http://www.ltl2dstar.de/) for PRISM (http://www.prismmodelchecker.org/)
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* Copyright (C) 2005-2007 Joachim Klein <j.klein@ltl2dstar.de>
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* Copyright (c) 2007 Carlos Bederian
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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package jltl2dstar;
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/** @file
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* Provides class SafraTreeWalker */
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/**
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* Walk a SafraTree and invoke the function
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* <code>void visit(SafraTree& tree, SafraTreeNode *node)</code>
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* of the SafraTreeVisitor on each node of the tree.
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*/
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public class SafraTreeWalker<Visitor extends SafrasAlgorithm.SafraTreeVisitor> {
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/** The Visitor */
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private Visitor _visitor;
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/** Constructor.
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* @param visitor the visitor functor
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*/
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public SafraTreeWalker(Visitor visitor) {
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_visitor = visitor;
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}
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/**
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* Walk the tree post-order and call visit() on each node.
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* @param tree the SafraTree
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*/
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public void walkTreePostOrder(SafraTree tree) {
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if (tree.getRootNode() == null) {return;}
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walkSubTreePostOrder(tree, tree.getRootNode(), true);
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}
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/**
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* Walk the subtree rooted at *top post-order and call visit() on each node.
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* @param tree the SafraTree
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* @param top the current subroot
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* @param visit_top if true, *top is visited too (former default: true)
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*/
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public void walkSubTreePostOrder(SafraTree tree,
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SafraTreeNode top,
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boolean visit_top) {
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if (top.getChildCount() > 0) {
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for (SafraTreeNode cur_child : top)
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walkSubTreePostOrder(tree, cur_child, true);
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}
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if (visit_top) {
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_visitor.visit(tree, top);
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}
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}
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}
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