vm/src/main/java/org/apidesign/vm4brwsr/Main.java
author Jaroslav Tulach <jaroslav.tulach@apidesign.org>
Tue, 11 Dec 2012 09:36:44 +0100
branchlazyvm
changeset 298 885acca2fa0b
parent 162 70e7710a65dc
child 317 15cbc8cb2163
permissions -rw-r--r--
Creating Bck2Brwsr entrypoint to for those who wish to generate their JavaScript based Java VM
     1 /**
     2  * Back 2 Browser Bytecode Translator
     3  * Copyright (C) 2012 Jaroslav Tulach <jaroslav.tulach@apidesign.org>
     4  *
     5  * This program is free software: you can redistribute it and/or modify
     6  * it under the terms of the GNU General Public License as published by
     7  * the Free Software Foundation, version 2 of the License.
     8  *
     9  * This program is distributed in the hope that it will be useful,
    10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
    11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    12  * GNU General Public License for more details.
    13  *
    14  * You should have received a copy of the GNU General Public License
    15  * along with this program. Look for COPYING file in the top folder.
    16  * If not, see http://opensource.org/licenses/GPL-2.0.
    17  */
    18 package org.apidesign.vm4brwsr;
    19 
    20 import java.io.BufferedWriter;
    21 import java.io.FileWriter;
    22 import java.io.IOException;
    23 import java.io.Writer;
    24 
    25 /** Generator of JavaScript from bytecode of classes on classpath of the VM
    26  * with a Main method.
    27  *
    28  * @author Jaroslav Tulach <jtulach@netbeans.org>
    29  */
    30 final class Main {
    31     private Main() {}
    32     
    33     public static void main(String... args) throws IOException {
    34         if (args.length < 2) {
    35             System.err.println("Bck2Brwsr Translator from Java(tm) to JavaScript, (c) Jaroslav Tulach 2012");
    36             System.err.println("Usage: java -cp ... -jar ... <file_to_generate_js_code_to> java/lang/Class org/your/App ...");
    37             return;
    38         }
    39         
    40         Writer w = new BufferedWriter(new FileWriter(args[0]));
    41         StringArray classes = StringArray.asList(args);
    42         classes.delete(0);
    43         Bck2Brwsr.generate(w, Main.class.getClassLoader(), classes.toArray());
    44         w.close();
    45     }
    46 }