/*

 * Copyright (c) 2007, 2008, 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.tools.classfile;

import java.io.IOException;

/**

 *  <p><b>This is NOT part of any supported API.

 *  If you write code that depends on this, you do so at your own risk.

 *  This code and its internal interfaces are subject to change or

 *  deletion without notice.</b>

 */

public class StackMap_attribute extends Attribute {

    StackMap_attribute(ClassReader cr, int name_index, int length)

            throws IOException, StackMapTable_attribute.InvalidStackMap {

        super(name_index, length);

        number_of_entries = cr.readUnsignedShort();

        entries = new stack_map_frame[number_of_entries];

        for (int i = 0; i < number_of_entries; i++)

            entries[i] = new stack_map_frame(cr);

    }

    public StackMap_attribute(ConstantPool constant_pool, stack_map_frame[] entries)

            throws ConstantPoolException {

        this(constant_pool.getUTF8Index(Attribute.StackMap), entries);

    }

    public StackMap_attribute(int name_index, stack_map_frame[] entries) {

        super(name_index, StackMapTable_attribute.length(entries));

        this.number_of_entries = entries.length;

        this.entries = entries;

    }

    public <R, D> R accept(Visitor<R, D> visitor, D data) {

        return visitor.visitStackMap(this, data);

    }

    public final int number_of_entries;

    public final stack_map_frame entries[];

    public static class stack_map_frame extends StackMapTable_attribute.full_frame {

        stack_map_frame(ClassReader cr)

                throws IOException, StackMapTable_attribute.InvalidStackMap {

            super(255, cr);

        }

    }

}