1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/rt/emul/mini/src/main/java/org/apidesign/bck2brwsr/emul/lang/System.java Tue Feb 26 16:54:16 2013 +0100
1.3 @@ -0,0 +1,69 @@
1.4 +/**
1.5 + * Back 2 Browser Bytecode Translator
1.6 + * Copyright (C) 2012 Jaroslav Tulach <jaroslav.tulach@apidesign.org>
1.7 + *
1.8 + * This program is free software: you can redistribute it and/or modify
1.9 + * it under the terms of the GNU General Public License as published by
1.10 + * the Free Software Foundation, version 2 of the License.
1.11 + *
1.12 + * This program is distributed in the hope that it will be useful,
1.13 + * but WITHOUT ANY WARRANTY; without even the implied warranty of
1.14 + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
1.15 + * GNU General Public License for more details.
1.16 + *
1.17 + * You should have received a copy of the GNU General Public License
1.18 + * along with this program. Look for COPYING file in the top folder.
1.19 + * If not, see http://opensource.org/licenses/GPL-2.0.
1.20 + */
1.21 +package org.apidesign.bck2brwsr.emul.lang;
1.22 +
1.23 +import java.lang.reflect.Method;
1.24 +import org.apidesign.bck2brwsr.core.JavaScriptBody;
1.25 +
1.26 +/**
1.27 + *
1.28 + * @author Jaroslav Tulach <jtulach@netbeans.org>
1.29 + */
1.30 +public class System {
1.31 + private System() {
1.32 + }
1.33 +
1.34 + @JavaScriptBody(args = { "value", "srcBegin", "dst", "dstBegin", "count" }, body =
1.35 + "if (srcBegin < dstBegin) {\n" +
1.36 + " while (count-- > 0) {\n" +
1.37 + " dst[dstBegin + count] = value[srcBegin + count];\n" +
1.38 + " }\n" +
1.39 + "} else {\n" +
1.40 + " while (count-- > 0) {\n" +
1.41 + " dst[dstBegin++] = value[srcBegin++];\n" +
1.42 + " }\n" +
1.43 + "}"
1.44 + )
1.45 + public static void arraycopy(Object src, int srcBegin, Object dst, int dstBegin, int count) {
1.46 + try {
1.47 + Class<?> system = Class.forName("java.lang.System");
1.48 + Method m = system.getMethod("arraycopy", Object.class, int.class, Object.class, int.class, int.class);
1.49 + m.invoke(null, src, srcBegin, dst, dstBegin, count);
1.50 + } catch (Exception ex) {
1.51 + throw new IllegalStateException(ex);
1.52 + }
1.53 + }
1.54 +
1.55 + @JavaScriptBody(args = { "arr", "expectedSize" }, body =
1.56 + "while (expectedSize-- > arr.length) { arr.push(0); }; return arr;"
1.57 + )
1.58 + public static native byte[] expandArray(byte[] arr, int expectedSize);
1.59 +
1.60 + @JavaScriptBody(args = {}, body = "return new Date().getTime();")
1.61 + private static native double currentTimeMillisDouble();
1.62 +
1.63 + public static long currentTimeMillis() {
1.64 + return (long) currentTimeMillisDouble();
1.65 + }
1.66 +
1.67 + public static long nanoTime() {
1.68 + return 1000000L * currentTimeMillis();
1.69 + }
1.70 + @JavaScriptBody(args = { "obj" }, body="return vm.java_lang_Object(false).hashCode__I.call(obj);")
1.71 + public static native int identityHashCode(Object obj);
1.72 +}