term.java

来自「java设计模式源码」· Java 代码 · 共 24 行

package com.oozinoz.robotInterpreter2;

/*
 * Copyright (c) 2001, 2005. Steven J. Metsker.
 * 
 * Steve Metsker makes no representations or warranties about
 * the fitness of this software for any particular purpose, 
 * including the implied warranty of merchantability.
 *
 * Please use this software as you wish with the sole
 * restriction that you may not claim that you wrote it.
 */

import com.oozinoz.machine.Machine;

/**
 * A term is usually either a machine, or a variable that refers to a machine.
 */
public abstract class Term {
    /**
     * @return The result of evaluating this term
     */
    public abstract Machine eval();
}