class AnnotationVisitor {

  /**
   * The ASM API version implemented by this visitor. The value of this field must be one of
   * {@link Opcodes#ASM4}.
   */
  protected final int api;

  /**
   * The annotation visitor to which this visitor must delegate method calls. May be null.
   */
  protected AnnotationVisitor av;

  /**
   * Constructs a new {@link AnnotationVisitor}.
   *
   * @param api the ASM API version implemented by this visitor. Must be one of
   *        {@link Opcodes#ASM4}.
   */
  public AnnotationVisitor(final int api) {
    this(api, null);
  }

  /**
   * Constructs a new {@link AnnotationVisitor}.
   *
   * @param api the ASM API version implemented by this visitor. Must be one of
   *        {@link Opcodes#ASM4}.
   * @param av the annotation visitor to which this visitor must delegate method calls. May be null.
   */
  public AnnotationVisitor(final int api, final AnnotationVisitor av) {
    if (api != Opcodes.ASM4) {
      throw new IllegalArgumentException();
    }
    this.api = api;
    this.av = av;
  }

  /**
   * Visits a primitive value of the annotation.
   *
   * @param name the value name.
   * @param value the actual value, whose type must be {@link Byte}, {@link Boolean},
   *        {@link Character}, {@link Short}, {@link Integer} , {@link Long}, {@link Float},
   *        {@link Double}, {@link String} or {@link Type} or OBJECT or ARRAY sort. This value can
   *        also be an array of byte, boolean, short, char, int, long, float or double values (this
   *        is equivalent to using {@link #visitArray visitArray} and visiting each array element in
   *        turn, but is more convenient).
   */
  public void visit(String name, Object value) {
    if (av != null) {
      av.visit(name, value);
    }
  }

  /**
   * Visits an enumeration value of the annotation.
   *
   * @param name the value name.
   * @param desc the class descriptor of the enumeration class.
   * @param value the actual enumeration value.
   */
  public void visitEnum(String name, String desc, String value) {<FILL_FUNCTION_BODY>}

  /**
   * Visits a nested annotation value of the annotation.
   *
   * @param name the value name.
   * @param desc the class descriptor of the nested annotation class.
   * @return a visitor to visit the actual nested annotation value, or <tt>null</tt> if this visitor
   *         is not interested in visiting this nested annotation. <i>The nested annotation value
   *         must be fully visited before calling other methods on this annotation visitor</i>.
   */
  public AnnotationVisitor visitAnnotation(String name, String desc) {
    if (av != null) {
      return av.visitAnnotation(name, desc);
    }
    return null;
  }

  /**
   * Visits an array value of the annotation. Note that arrays of primitive types (such as byte,
   * boolean, short, char, int, long, float or double) can be passed as value to {@link #visit
   * visit}. This is what {@link ClassReader} does.
   *
   * @param name the value name.
   * @return a visitor to visit the actual array value elements, or <tt>null</tt> if this visitor is
   *         not interested in visiting these values. The 'name' parameters passed to the methods of
   *         this visitor are ignored. <i>All the array values must be visited before calling other
   *         methods on this annotation visitor</i>.
   */
  public AnnotationVisitor visitArray(String name) {
    if (av != null) {
      return av.visitArray(name);
    }
    return null;
  }

  /**
   * Visits the end of the annotation.
   */
  public void visitEnd() {
    if (av != null) {
      av.visitEnd();
    }
  }
}

    if (av != null) {
      av.visitEnum(name, desc, value);
    }
  
<no_super_class>