/*
 * Bytecode Analysis Framework
 * Copyright (C) 2003,2004 University of Maryland
 * 
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 * 
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 * 
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

package edu.umd.cs.findbugs.ba.bcp;

/**
 * A Binding binds a name to a Variable.
 *
 * @author David Hovemeyer
 * @see Variable
 */
public class Binding {
	private final String varName;
	private final Variable variable;

	/**
	 * Constructor.
	 *
	 * @param varName  the name of the variable
	 * @param variable the variable
	 */
	public Binding(String varName, Variable variable) {
		if (variable == null) throw new IllegalArgumentException("No variable!");
		this.varName = varName;
		this.variable = variable;
	}

	/**
	 * Get the variable name.
	 */
	public String getVarName() {
		return varName;
	}

	/**
	 * Get the variable of the variable.
	 */
	public Variable getVariable() {
		return variable;
	}

	@Override
	public String toString() {
		StringBuilder buf = new StringBuilder();
		buf.append(varName);
		buf.append('=');
		buf.append(variable.toString());
		return buf.toString();
	}
}

// vim:ts=4
