PragmaNode.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.expression.StringLiteralNodeIF;
import edu.udel.cis.vsl.tass.ast.IF.statement.PragmaNodeIF;

public class PragmaNode extends StatementNode implements PragmaNodeIF {
    
    private StringLiteralNodeIF string;

	private ASTNodeIF nextNode;

	public PragmaNode(long id) {
		super(id);
	}
	
	public PragmaNode(long id, StringLiteralNodeIF string) {
		super(id);
		this.string = string;
	}

	@Override
	public ASTNodeIF nextNode() {
		return nextNode;
	}

	@Override
	public void setNextNode(ASTNodeIF nextNode)  {
		this.nextNode = nextNode;
	}

	@Override
	public StringLiteralNodeIF string() {
		return string;
	}

	@Override
	public void setString(StringLiteralNodeIF string) {
		this.string = string;
	}

	@Override
	public int numChildren() {
		return 2;
	}

	@Override
	public ASTNodeIF child(int index) throws NoSuchElementException {
		switch (index) {
		case 0:
			return super.child(index);
		case 1:
			return string;
		default:
			throw new NoSuchElementException("Node " + id()
			   + " does not have a child with index " + index + ".");
		}
	}

	@Override
	public void setChild(int i, ASTNodeIF child) throws NoSuchElementException {
		switch (i) {
		case 0:
			super.setChild(i,child);
			break;
		case 1:
			string = (StringLiteralNodeIF)child;
			break;
		default:
			throw new NoSuchElementException("Node " + id()
			   + " does not have a child with index " + i + ".");
		}
	}

	@Override
	protected String nodeType() {
		return "Pragma";
	}

	@Override
	public void toXml(String prefix, PrintWriter out,AbstractSyntaxTreeIF ast) {
		super.toXml(prefix,out,ast);

		out.println(prefix+"<pn:string>"+string()+"</pn:string>");
	}
}