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189 lines (163 loc) · 4.94 KB
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/*
* DynamicJava - Copyright (C) 1999-2001
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files
* (the "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to permit
* persons to whom the Software is furnished to do so, subject to the
* following conditions:
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL DYADE BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*
* Except as contained in this notice, the name of Dyade shall not be
* used in advertising or otherwise to promote the sale, use or other
* dealings in this Software without prior written authorization from
* Dyade.
*
*/
package koala.dynamicjava.tree;
import java.util.*;
import koala.dynamicjava.tree.visitor.*;
/**
* This class represents the for statement nodes of the syntax tree
*
* @author Stephane Hillion
* @version 1.0 - 1999/05/23
*/
public class ForStatement extends ForSlashEachStatement implements ContinueTarget {
/**
* The initialization statements
*/
private List<Node> initialization;
/**
* The condition to evaluate at each loop
*/
private Expression condition;
/**
* The update statements
*/
private List<Node> update;
/**
* The body of this statement
*/
private Node body;
/**
* The labels
*/
private List<String> labels;
/**
* Creates a new for statement
* @param init the initialization statements
* @param cond the condition to evaluate at each loop
* @param updt the update statements
* @param body the body
* @exception IllegalArgumentException if body is null
*/
public ForStatement(List<Node> init, Expression cond, List<Node> updt, Node body) {
this(init, cond, updt, body, SourceInfo.NONE);
}
/**
* Creates a new for statement
* @param init the initialization statements (either Statements or declarations)
* @param cond the condition to evaluate at each loop
* @param updt the update statements (either Statements or declarations)
* @param body the body
* @exception IllegalArgumentException if body is null
*/
public ForStatement(List<Node> init, Expression cond, List<Node> updt, Node body,
SourceInfo si) {
super(si);
if (body == null) throw new IllegalArgumentException("body == null");
initialization = init;
condition = cond;
update = updt;
this.body = body;
labels = new LinkedList<String>();
}
/**
* Gets the initialization statements
*/
public List<Node> getInitialization() {
return initialization;
}
/**
* Sets the initialization statements
*/
public void setInitialization(List<Node> l) {
initialization = l;
}
/**
* Gets the condition to evaluate at each loop
*/
public Expression getCondition() {
return condition;
}
/**
* Sets the condition to evaluate
*/
public void setCondition(Expression e) {
condition = e;
}
/**
* Gets the update statements
*/
public List<Node> getUpdate() {
return update;
}
/**
* Sets the update statements
*/
public void setUpdate(List<Node> l) {
update = l;
}
/**
* Returns the body of this statement
*/
public Node getBody() {
return body;
}
/**
* Sets the body of this statement
* @exception IllegalArgumentException if node is null
*/
public void setBody(Node node) {
if (node == null) throw new IllegalArgumentException("node == null");
body = node;
}
/**
* Adds a label to this statement
* @param label the label to add
* @exception IllegalArgumentException if label is null
*/
public void addLabel(String label) {
if (label == null) throw new IllegalArgumentException("label == null");
labels.add(label);
}
/**
* Test whether this statement has the given label
* @return true if this statement has the given label
*/
public boolean hasLabel(String label) {
return labels.contains(label);
}
/**
* Allows a visitor to traverse the tree
* @param visitor the visitor to accept
*/
public <T> T acceptVisitor(Visitor<T> visitor) {
return visitor.visit(this);
}
public String toString(){
return "("+getClass().getName()+": "+getInitialization()+" "+getCondition()+" "+getUpdate()+" "+getBody()+")";
}
}