ReturnNode.java

package edu.udel.cis.vsl.tass.ast.impl.statement;

import java.io.PrintWriter;
import java.util.NoSuchElementException;

import edu.udel.cis.vsl.tass.ast.IF.ASTNodeIF;
import edu.udel.cis.vsl.tass.ast.IF.AbstractSyntaxTreeIF;
import edu.udel.cis.vsl.tass.ast.IF.LabelNodeIF;
import edu.udel.cis.vsl.tass.ast.IF.SequenceNodeIF;
import edu.udel.cis.vsl.tass.ast.IF.expression.ExpressionNodeIF;
import edu.udel.cis.vsl.tass.ast.IF.statement.ReturnNodeIF;
import edu.udel.cis.vsl.tass.ast.impl.ASTNode;

public class ReturnNode extends ASTNode implements ReturnNodeIF {

	ExpressionNodeIF expression;
	
	public ReturnNode(long id) {
		super(id);
	}
	
	public ReturnNode(long id, ExpressionNodeIF expression) {
		super(id);
		this.expression = expression;
	}

	@Override
	public SequenceNodeIF<LabelNodeIF> labels() {
		// TODO Auto-generated method stub
		return null;
	}

	@Override
	public void setLabels(SequenceNodeIF<LabelNodeIF> labels) {
		// TODO Auto-generated method stub

	}

	@Override
	public int numChildren() {
		return 1;
	}

	@Override
	public ASTNodeIF child(int index) throws NoSuchElementException {
		if (index == 0) {
			return expression;
		}
		throw new NoSuchElementException("Node " + id()
				+ " does not have a child with index " + index + ".");
	}

	@Override
	public void setChild(int i, ASTNodeIF child) throws NoSuchElementException {
		if (i == 0) {
			expression = (ExpressionNodeIF) child;
		}
		throw new NoSuchElementException("Node " + id()
				+ " does not have a child with index " + i + ".");
	}

	@Override
	public void print(String prefix, PrintWriter out) {
		// TODO Auto-generated method stub

	}

	@Override
	public void toXml(String prefix, PrintWriter out,AbstractSyntaxTreeIF ast) {
		// TODO Auto-generated method stub

	}

	@Override
	public ExpressionNodeIF expression() {
		return expression;
	}

	@Override
	public void setExpression(ExpressionNodeIF expression) {
		this.expression = expression;
	}

}