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An unofficial backport of the JDK Classfile API to Java 17

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/*
 * Copyright (c) 2022, 2024, 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 io.github.dmlloyd.classfile.attribute;

import io.github.dmlloyd.classfile.Attribute;
import io.github.dmlloyd.classfile.CodeElement;
import java.util.List;

import io.github.dmlloyd.classfile.impl.BoundAttribute;
import io.github.dmlloyd.classfile.impl.UnboundAttribute;

/**
 * Models the {@code StackMapTable} attribute (JVMS {@jvms 4.7.4}), which can appear
 * on a {@code Code} attribute.
 * 
 * The attribute does not permit multiple instances in a given location.
 * Subsequent occurrence of the attribute takes precedence during the attributed
 * element build or transformation.
 * 
 * The attribute was introduced in the Java SE Platform version 6.
 *
 * @since 24
 */
public sealed interface StackMapTableAttribute
        extends Attribute, CodeElement
        permits BoundAttribute.BoundStackMapTableAttribute, UnboundAttribute.UnboundStackMapTableAttribute {

    /**
     * {@return the stack map frames}
     */
    List entries();

    /**
     * {@return a stack map table attribute}
     * @param entries the stack map frames
     */
    public static StackMapTableAttribute of(List entries) {
        return new UnboundAttribute.UnboundStackMapTableAttribute(entries);
    }
}