/*******************************************************************************
* Copyright (c) 2009 Luaj.org. All rights reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
******************************************************************************/
package org.luaj.luajc;
import java.io.ByteArrayInputStream;
import java.io.FileOutputStream;
import java.io.InputStream;
import java.util.Enumeration;
import java.util.Hashtable;
import org.luaj.vm2.LuaTable;
import org.luaj.vm2.LuaValue;
import org.luaj.vm2.Varargs;
import org.luaj.vm2.lib.jse.JsePlatform;
import org.luaj.vm2.luajc.LuaJC;
public class TestLuaJC {
// create the script
public static String name = "script";
public static String script =
"local t = a or nil\n"+
"local t\n" +
"b = function()\n"+
" return t\n"+
"end\n"+
"return t\n"+
"";
public static void main(String[] args) throws Exception {
System.out.println(script);
try {
// create an environment to run in
LuaTable _G = JsePlatform.standardGlobals();
// compile into a chunk, or load as a class
LuaValue chunk;
if ( ! (args.length>0 && args[0].equals("nocompile")) ) {
InputStream is = new ByteArrayInputStream( script.getBytes() );
chunk = LuaJC.getInstance().load(is, "script", _G);
} else {
chunk = (LuaValue) Class.forName("script").newInstance();
}
chunk.setfenv(_G);
// call with arguments
LuaValue[] vargs = new LuaValue[args.length];
for ( int i=0; i<args.length; i++ )
vargs[i] = LuaValue.valueOf(args[i]);
Varargs cargs = LuaValue.varargsOf(vargs);
Varargs v = chunk.invoke(cargs);
// print the result
for ( int i=1; i<=v.narg(); i++ )
System.out.println("result["+i+"]: "+v.arg(i));
} catch ( Throwable e ) {
e.printStackTrace();
saveClasses();
}
}
private static void saveClasses() throws Exception {
// create the chunk
String chunkname = "script";
String filename = "script";
String destdir = ".";
InputStream is = new ByteArrayInputStream( script.getBytes() );
Hashtable t = LuaJC.getInstance().compileAll(is, chunkname, filename);
// write out the chunk
for ( Enumeration e = t.keys(); e.hasMoreElements(); ) {
String key = (String) e.nextElement();
byte[] bytes = (byte[]) t.get(key);
String destpath = (destdir!=null? destdir+"/": "") + key + ".class";
System.out.println(
"chunk "+chunkname+
" from "+filename+
" written to "+destpath
+" length="+bytes.length+" bytes");
FileOutputStream fos = new FileOutputStream( destpath );
fos.write( bytes );
fos.close();
}
}
}