Initial sources for planned 2.0 luaj vm release. Most interpreter features and library functions working.

examples/jme/SampleMIDlet.java

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+
+
+import javax.microedition.midlet.MIDlet;
+import javax.microedition.midlet.MIDletStateChangeException;
+
+import org.luaj.vm2.*;
+import org.luaj.vm2.lib.*;
+import org.luaj.vm2.compiler.LuaC;
+
+
+public class SampleMIDlet extends MIDlet {
+
+	// the script will be loaded as a resource 
+	private static final String DEFAULT_SCRIPT = "hello.lua";
+	
+	protected void startApp() throws MIDletStateChangeException {
+		// get the script as an app property
+		String script = this.getAppProperty("script");
+		if ( script == null )
+			script = DEFAULT_SCRIPT;
+		
+		// create an environment to run in
+ 		LuaC.install();
+		LuaValue _G = JmePlatform.standardGlobals();
+		_G.get("dofile").call( LuaValue.valueOf(script) );
+	}
+
+	protected void destroyApp(boolean arg0) throws MIDletStateChangeException {
+	}
+
+	protected void pauseApp() {
+	}
+
+}

examples/jse/SampleJseMain.java

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+
+
+import org.luaj.vm2.*;
+import org.luaj.vm2.lib.*;
+import org.luaj.vm2.compiler.LuaC;
+
+public class SampleJseMain {
+	
+	
+	public static void main(String[] args) throws Exception {
+		String script = "examples/lua/hello.lua";
+		
+		// create an environment to run in
+ 		LuaC.install();
+		LuaValue _G = JsePlatform.standardGlobals();
+		_G.get("dofile").call( LuaValue.valueOf(script) );
+	}
+
+
+}

examples/jse/ScriptEngineSample.java

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+
+
+import javax.script.Bindings;
+import javax.script.Compilable;
+import javax.script.CompiledScript;
+import javax.script.ScriptEngine;
+import javax.script.ScriptEngineFactory;
+import javax.script.ScriptEngineManager;
+import javax.script.ScriptException;
+
+public class ScriptEngineSample {
+    
+    public static void main(String [] args) {
+        ScriptEngineManager sem = new ScriptEngineManager();
+        ScriptEngine e = sem.getEngineByExtension(".lua");
+        ScriptEngineFactory f = e.getFactory();
+        System.out.println( "Engine name: " +f.getEngineName() );
+        System.out.println( "Engine Version: " +f.getEngineVersion() );
+        System.out.println( "LanguageName: " +f.getLanguageName() );
+        System.out.println( "Language Version: " +f.getLanguageVersion() );
+        String statement = f.getOutputStatement("\"hello, world\"");
+        System.out.println(statement);
+        try {
+            e.eval(statement);
+            
+            e.put("x", 25);
+            e.eval("y = math.sqrt(x)");
+            System.out.println( "y="+e.get("y") );
+
+            e.put("x", 2);
+            e.eval("y = math.sqrt(x)");
+            System.out.println( "y="+e.get("y") );
+            
+            CompiledScript cs = ((Compilable)e).compile("y = math.sqrt(x); return y");
+            Bindings b = e.createBindings();
+            b.put("x", 3);
+            System.out.println( "eval: "+cs.eval(b) );
+            System.out.println( "y="+b.get("y") );
+            
+            try {
+            	e.eval("\n\nbogus example\n\n");
+            } catch ( ScriptException se ) {
+            	System.out.println("script threw ScriptException as expected, message is '"+se.getMessage()+"'");
+            }
+        } catch (ScriptException ex) {
+            ex.printStackTrace();
+        }
+    }
+
+}

examples/lua/hello.lua

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+print( 'hello, world' )

examples/lua/swingapp.lua

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+	
+frame = luajava.newInstance( "javax.swing.JFrame", "Texts" );
+pane = luajava.newInstance( "javax.swing.JPanel" );
+borderFactory = luajava.bindClass( "javax.swing.BorderFactory" )
+border = borderFactory:createEmptyBorder( 30, 30, 10, 30 )
+pane:setBorder( border )
+label = luajava.newInstance( "javax.swing.JLabel", "This is a Label" );
+
+
+layout = luajava.newInstance( "java.awt.GridLayout", 2, 2 );
+pane:setLayout( layout )
+pane:add( label )
+pane:setBounds( 20, 30, 10, 30 )
+
+borderLayout = luajava.bindClass( "java.awt.BorderLayout" )
+frame:getContentPane():add(pane, borderLayout.CENTER )
+jframe = luajava.bindClass( "javax.swing.JFrame" )
+frame:setDefaultCloseOperation(jframe.EXIT_ON_CLOSE)
+frame:pack()
+frame:setVisible(true)
+
+local listener = luajava.createProxy("java.awt.event.MouseListener",
+					{
+						mouseClicked = function(me)
+							print("clicked!", me)
+						end
+					})
+
+frame:addMouseListener(listener)