constantnode.java

来自「This is a resource based on j2me embedde」· Java 代码 · 共 73 行

/*
 * @(#)ConstantNode.java	1.16 06/10/25
 *
 * Copyright  1990-2008 Sun Microsystems, Inc. All Rights Reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER
 * 
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License version
 * 2 only, as published by the Free Software Foundation. 
 * 
 * This program 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
 * General Public License version 2 for more details (a copy is
 * included at /legal/license.txt). 
 * 
 * You should have received a copy of the GNU General Public License
 * version 2 along with this work; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA 
 * 
 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
 * Clara, CA 95054 or visit www.sun.com if you need additional
 * information or have any questions. 
 */

package com.sun.tools.jdwpgen;

import java.util.*;
import java.io.*;

class ConstantNode extends AbstractCommandNode {
    
    ConstantNode() {
        this(new ArrayList());
    }

    ConstantNode(List components) {
        this.kind = "Constant";
        this.components = components;
        this.lineno = 0;
    }

    void constrain(Context ctx) {
        if (components.size() != 0) {
            error("Constants have no internal structure");
        }
        super.constrain(ctx);
    }

    void genJava(PrintWriter writer, int depth) {
        indent(writer, depth);
        writer.println("static final int " + name + " = " +
                       nameNode.value() + ";");
    }

    void document(PrintWriter writer) {
        
        //Add anchor to each constant with format <constant table name>_<constant name>
        writer.println("<tr><td>" + name + "<td>" + nameNode.value() +
                       "<td>" + comment() + " &nbsp;");
    }
    
    public String getName(){
        
        if (name == null || name.length() == 0) {
            prune();
        }
        return name;
    }
}