Copy the array before passing it to JavaScript when using net.java.html.js.JavaScriptBody
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.bck2brwsr.emul.lang;
20 import java.lang.reflect.Method;
21 import org.apidesign.bck2brwsr.core.JavaScriptBody;
22 import org.apidesign.bck2brwsr.core.JavaScriptOnly;
26 * @author Jaroslav Tulach <jtulach@netbeans.org>
32 @JavaScriptBody(args = { "value", "srcBegin", "dst", "dstBegin", "count" }, body =
33 "if (srcBegin < dstBegin) {\n" +
34 " while (count-- > 0) {\n" +
35 " dst[dstBegin + count] = value[srcBegin + count];\n" +
38 " while (count-- > 0) {\n" +
39 " dst[dstBegin++] = value[srcBegin++];\n" +
43 public static void arraycopy(Object src, int srcBegin, Object dst, int dstBegin, int count) {
45 Class<?> system = Class.forName("java.lang.System");
46 Method m = system.getMethod("arraycopy", Object.class, int.class, Object.class, int.class, int.class);
47 m.invoke(null, src, srcBegin, dst, dstBegin, count);
48 } catch (Exception ex) {
49 throw new IllegalStateException(ex);
53 @JavaScriptBody(args = { "arr", "expectedSize" }, body =
54 "while (expectedSize-- > arr.length) { arr.push(0); }; return arr;"
56 public static native byte[] expandArray(byte[] arr, int expectedSize);
58 @JavaScriptBody(args = { "arr", "expectedSize" }, body =
59 "while (expectedSize-- > arr.length) { arr.push(0); }; return arr;"
61 public static native char[] expandArray(char[] arr, int expectedSize);
63 @JavaScriptBody(args = {}, body = "return new Date().getTime();")
64 private static native double currentTimeMillisDouble();
66 public static long currentTimeMillis() {
67 return (long) currentTimeMillisDouble();
70 public static long nanoTime() {
71 return 1000000L * currentTimeMillis();
73 @JavaScriptBody(args = { "obj" }, body="return vm.java_lang_Object(false).hashCode__I.call(obj);")
74 public static native int identityHashCode(Object obj);
76 @JavaScriptOnly(name = "toJS", value = "function(v) {\n" +
77 " if (v === null) return null;\n" +
78 " if (Object.prototype.toString.call(v) === '[object Array]') {\n" +
79 " return vm.org_apidesign_bck2brwsr_emul_lang_System(false).convArray__Ljava_lang_Object_2Ljava_lang_Object_2(v);\n" +
81 " return v.valueOf();\n" +
84 public static native int toJS();
86 private static Object convArray(Object o) {
87 if (o instanceof Object[]) {
88 Object[] arr = (Object[]) o;
89 final int l = arr.length;
90 Object[] ret = new Object[l];
91 for (int i = 0; i < l; i++) {
92 ret[i] = convArray(arr[i]);