emul/mini/src/main/java/org/apidesign/bck2brwsr/emul/lang/System.java
author Jaroslav Tulach <jaroslav.tulach@apidesign.org>
Wed, 06 Feb 2013 15:09:42 +0100
branchemul
changeset 683 327a6da275d6
parent 666 8338ab1991e6
parent 668 b4354a30d4dd
child 685 c668c83507ee
permissions -rw-r--r--
Merge from default branch
     1 /**
     2  * Back 2 Browser Bytecode Translator
     3  * Copyright (C) 2012 Jaroslav Tulach <jaroslav.tulach@apidesign.org>
     4  *
     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.
     8  *
     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.
    13  *
    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.
    17  */
    18 package org.apidesign.bck2brwsr.emul.lang;
    19 
    20 import org.apidesign.bck2brwsr.core.JavaScriptBody;
    21 
    22 /**
    23  *
    24  * @author Jaroslav Tulach <jtulach@netbeans.org>
    25  */
    26 public class System {
    27     private System() {
    28     }
    29 
    30     @JavaScriptBody(args = { "value", "srcBegin", "dst", "dstBegin", "count" }, body = 
    31         "if (srcBegin < dstBegin) {\n" +
    32         "    while (count-- > 0) {\n" +
    33         "        dst[dstBegin + count] = value[srcBegin + count];\n" +
    34         "    }\n" +
    35         "} else {\n" +
    36         "    while (count-- > 0) {\n" +
    37         "        dst[dstBegin++] = value[srcBegin++];\n" +
    38         "    }\n" +
    39         "}"
    40     )
    41     public static native void arraycopy(Object value, int srcBegin, Object dst, int dstBegin, int count);
    42 
    43     @JavaScriptBody(args = { "arr", "expectedSize" }, body = 
    44         "while (expectedSize-- > arr.length) { arr.push(0); }; return arr;"
    45     )
    46     public static native byte[] expandArray(byte[] arr, int expectedSize);
    47 
    48     @JavaScriptBody(args = {}, body = "new Date().getMilliseconds();")
    49     public static native long currentTimeMillis();
    50     
    51     public static long nanoTime() {
    52         return 1000000L * currentTimeMillis();
    53     }
    54     @JavaScriptBody(args = { "obj" }, body="return vm.java_lang_Object(false).hashCode__I.call(obj);")
    55     public static native int identityHashCode(Object obj);
    56     
    57     public static long nanoTime() {
    58         return 1000L * currentTimeMillis();
    59     }
    60 }