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.ByteArrayInputStream;
21 import java.io.DataInputStream;
22 import java.io.IOException;
23 import org.apidesign.bck2brwsr.core.JavaScriptBody;
27 * @author Jaroslav Tulach <jtulach@netbeans.org>
29 public class Numbers {
30 private static Double autoboxDbl() {
33 public static String autoboxDblToString() {
34 return autoboxDbl().toString().toString();
36 public static int rem(int a, int b) {
40 static float deserFloat() throws IOException {
41 byte[] arr = {(byte) 71, (byte) 84, (byte) 52, (byte) 83};
42 ByteArrayInputStream is = new ByteArrayInputStream(arr);
43 DataInputStream dis = new DataInputStream(is);
44 float r = dis.readFloat();
47 static double deserDouble() throws IOException {
48 byte[] arr = {(byte)64, (byte)8, (byte)0, (byte)0, (byte)0, (byte)0, (byte)0, (byte)0};
49 ByteArrayInputStream is = new ByteArrayInputStream(arr);
50 DataInputStream dis = new DataInputStream(is);
51 return dis.readDouble();
53 static long deserLong(byte[] arr) throws IOException {
54 ByteArrayInputStream is = new ByteArrayInputStream(arr);
55 DataInputStream dis = new DataInputStream(is);
56 return dis.readLong();
58 static long deserLong(byte[] arr, int shift) throws IOException {
59 return deserLong(arr) >> shift;
61 static int deserInt() throws IOException {
62 byte[] arr = {(byte) 71, (byte) 84, (byte) 52, (byte) 83};
63 ByteArrayInputStream is = new ByteArrayInputStream(arr);
64 DataInputStream dis = new DataInputStream(is);
68 static String intToString() {
69 return new Integer(5).toString().toString();
71 static String floatToString() {
72 return new Float(7.0).toString().toString();
75 static double seven(int todo) {
77 case 0: return sevenNew().doubleValue();
78 case 1: return sevenNew().intValue();
79 case 2: return sevenNew().longValue();
80 case 3: return sevenNew().shortValue();
81 case 4: return sevenNew().byteValue();
82 case 8: return valueOf(Double.valueOf(7.0));
83 case 9: return valueOf(Long.valueOf(Long.MAX_VALUE / 5));
84 case 30: return valueOf(Boolean.FALSE);
85 case 31: return valueOf(Boolean.TRUE);
86 case 65: return valueOf(Character.valueOf('A'));
87 default: throw new IllegalStateException();
90 static boolean bseven(int todo) {
92 case 30: return bvalueOf(Boolean.FALSE);
93 case 31: return bvalueOf(Boolean.TRUE);
94 default: throw new IllegalStateException();
98 @JavaScriptBody(args = {}, body = "return 7;")
99 private static native Number sevenNew();
101 @JavaScriptBody(args = { "o" }, body = "return o.valueOf();")
102 private static native double valueOf(Object o);
104 @JavaScriptBody(args = { "o" }, body = "return o.valueOf();")
105 private static native boolean bvalueOf(Object o);