/*
 * Copyright (c) 2014, 2022 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 com.sun.tdk.jcov.instrument.asm;

import java.io.IOException;
import java.io.InputStream;
import org.objectweb.asm.ClassReader;
import org.objectweb.asm.Label;

/**
 * OffsetLabelingClassReader
 *
 *
 * @author Robert Field
 */
class OffsetLabelingClassReader extends ClassReader {

    public OffsetLabelingClassReader(byte[] b) {
        super(b);
    }

    public OffsetLabelingClassReader(InputStream in) throws IOException {
        super(in);
    }

    /**
     * @Override public void accept(ClassVisitor cv, Attribute[] attrs, int
     * flags) { super.accept(new MyClassAdapter(cv), attrs, flags); }
     ***
     */
    @Override
    protected Label readLabel(int offset, Label[] labels) {
        OffsetLabel label = (OffsetLabel) labels[offset];
        if (label == null) {
            for (int i = 0; i < labels.length; ++i) {
                labels[i] = new OffsetLabel(i);
            }
            label = (OffsetLabel) labels[offset];
        }
        label.realLabel = true;
        return label;
    }
}
