Creating Bck2Brwsr entrypoint to for those who wish to generate their JavaScript based Java VM
2 * Back 2 Browser Bytecode Translator
3 * Copyright (C) 2012 Jaroslav Tulach <jaroslav.tulach@apidesign.org>
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.
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.
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.
18 package org.apidesign.vm4brwsr;
20 import java.io.IOException;
21 import java.lang.annotation.Annotation;
22 import java.lang.reflect.Method;
23 import java.net.MalformedURLException;
24 import org.apidesign.bck2brwsr.core.JavaScriptBody;
28 * @author Jaroslav Tulach <jtulach@netbeans.org>
30 @ClassesMarker(number = 10)
31 @ClassesNamer(name = "my text")
32 public class Classes {
33 public static boolean equalsClassesOfExceptions() {
34 return MalformedURLException.class.getSuperclass() == IOException.class;
36 public static boolean differenceInClasses() {
37 Class<?> c1 = MalformedURLException.class;
38 Class<?> c2 = IOException.class;
42 public static String classForInstance() {
43 return new IOException().getClass().getName().toString();
46 @ClassesMarker(number = 1)
47 public static String name() {
48 return IOException.class.getName().toString();
50 public static String simpleName() {
51 return IOException.class.getSimpleName();
53 public static String canonicalName() {
54 return IOException.class.getCanonicalName();
56 public static boolean newInstance() throws Exception {
57 IOException ioe = IOException.class.newInstance();
58 if (ioe instanceof IOException) {
59 return ioe.getClass() == IOException.class;
61 throw new IllegalStateException("Not a subtype: " + ioe);
63 public static int getMarker() {
64 if (!Classes.class.isAnnotationPresent(ClassesMarker.class)) {
67 ClassesMarker cm = Classes.class.getAnnotation(ClassesMarker.class);
68 return cm == null ? -1 : cm.number();
70 public static String getNamer(boolean direct) {
72 ClassesNamer cm = Classes.class.getAnnotation(ClassesNamer.class);
73 return cm == null ? null : cm.name();
75 for (Annotation a : Classes.class.getAnnotations()) {
76 if (a instanceof ClassesNamer) {
77 return ((ClassesNamer)a).name();
83 @JavaScriptBody(args = "msg", body = "throw msg;")
84 private static native void thrw(String msg);
86 public static Object reflectiveMethodCall(boolean direct, String mn) throws Exception {
88 StringBuilder sb = new StringBuilder();
90 final Class<? extends Annotation> v = ClassesMarker.class;
91 for (Method m : Classes.class.getMethods()) {
92 sb.append("\n").append(m.getName());
94 if (m.getName().equals(mn)) {
99 if (m.getAnnotation(v) != null) {
106 find = Classes.class.getMethod(mn);
110 throw new NullPointerException(sb.toString());
112 return find.invoke(null);