/***
 * ASM: a very small and fast Java bytecode manipulation framework
 * Copyright (c) 2000-2007 INRIA, France Telecom
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. Neither the name of the copyright holders nor the names of its
 *    contributors may be used to endorse or promote products derived from
 *    this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
 * THE POSSIBILITY OF SUCH DAMAGE.
 */
package alterrs.asm.tree;

import java.util.ArrayList;
import java.util.List;

import alterrs.asm.AnnotationVisitor;
import alterrs.asm.Attribute;

/**
 * An abstract class, field or method node.
 * 
 * @author Eric Bruneton
 */
public abstract class MemberNode {

	/**
	 * The runtime visible annotations of this class, field or method. This list
	 * is a list of {@link AnnotationNode} objects. May be <tt>null</tt>.
	 * 
	 * @associates org.objectweb.asm.tree.AnnotationNode
	 * @label visible
	 */
	public List visibleAnnotations;

	/**
	 * The runtime invisible annotations of this class, field or method. This
	 * list is a list of {@link AnnotationNode} objects. May be <tt>null</tt>.
	 * 
	 * @associates org.objectweb.asm.tree.AnnotationNode
	 * @label invisible
	 */
	public List invisibleAnnotations;

	/**
	 * The non standard attributes of this class, field or method. This list is
	 * a list of {@link alterrs.asm.Attribute} objects. May be <tt>null</tt>.
	 * 
	 * @associates org.objectweb.asm.Attribute
	 */
	public List attrs;

	/**
	 * Constructs a new {@link MemberNode}.
	 */
	protected MemberNode() {
	}

	/**
	 * Visits an annotation of this class, field or method.
	 * 
	 * @param desc
	 *            the class descriptor of the annotation class.
	 * @param visible
	 *            <tt>true</tt> if the annotation is visible at runtime.
	 * @return a visitor to visit the annotation values.
	 */
	public AnnotationVisitor visitAnnotation(final String desc,
			final boolean visible) {
		AnnotationNode an = new AnnotationNode(desc);
		if (visible) {
			if (visibleAnnotations == null) {
				visibleAnnotations = new ArrayList(1);
			}
			visibleAnnotations.add(an);
		} else {
			if (invisibleAnnotations == null) {
				invisibleAnnotations = new ArrayList(1);
			}
			invisibleAnnotations.add(an);
		}
		return an;
	}

	/**
	 * Visits a non standard attribute of this class, field or method.
	 * 
	 * @param attr
	 *            an attribute.
	 */
	public void visitAttribute(final Attribute attr) {
		if (attrs == null) {
			attrs = new ArrayList(1);
		}
		attrs.add(attr);
	}

	/**
	 * Visits the end of this class, field or method.
	 */
	public void visitEnd() {
	}
}
