make/data/charsetmapping/SingleByte-X.java.template - master - githubmirror/jdk11u-dev

make/data/charsetmapping/SingleByte-X.java.template

71 строка2 KB

Dmitry Chuyko

8231717: Improve performance of charset decoding when charset is always compactable

25 июн 2021, 00:55

25 июн 2021, 00:5534d1c92

/*
 * Copyright (c) 2008, 2019, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.  Oracle designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Oracle in the LICENSE file that accompanied this code.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 */

package $PACKAGE$;

import java.nio.charset.Charset;
import java.nio.charset.CharsetDecoder;
import java.nio.charset.CharsetEncoder;
import sun.nio.cs.StandardCharsets;
import sun.nio.cs.SingleByte;
import sun.nio.cs.HistoricallyNamedCharset;
import static sun.nio.cs.CharsetMapping.*;

public class $NAME_CLZ$ extends Charset implements HistoricallyNamedCharset
{
    public $NAME_CLZ$() {
        super("$NAME_CS$", $NAME_ALIASES$);
    }

    public String historicalName() {
        return "$NAME_HIS$";
    }

    public boolean contains(Charset cs) {
        $CONTAINS$;
    }

    public CharsetDecoder newDecoder() {
        return new SingleByte.Decoder(this, b2c, $ASCIICOMPATIBLE$, $LATIN1DECODABLE$);
    }

    public CharsetEncoder newEncoder() {
        return new SingleByte.Encoder(this, c2b, c2bIndex, $ASCIICOMPATIBLE$);
    }

    private final static String b2cTable = $B2CTABLE$

    private final static char[] b2c = b2cTable.toCharArray();
    private final static char[] c2b = new char[$C2BLENGTH$];
    private final static char[] c2bIndex = new char[0x100];

    static {
        char[] b2cMap = b2c;
        char[] c2bNR = null;
        $NONROUNDTRIP_B2C$
        $NONROUNDTRIP_C2B$
        SingleByte.initC2B(b2cMap, c2bNR, c2b, c2bIndex);
    }
}