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/*
 * This file is available under and governed by the GNU General Public
 * License version 2 only, as published by the Free Software Foundation.
 * However, the following notice accompanied the original version of this
 * file:
 *
 * 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 com.sun.xml.internal.ws.org.objectweb.asm;

A visitor to visit a Java class. The methods of this interface must be called
in the following order: visit [ visitSource ] [
visitOuterClass ] ( visitAnnotation |
visitAttribute )* (visitInnerClass |
visitField | visitMethod )* visitEnd.
Author:
Eric Bruneton/**
 * A visitor to visit a Java class. The methods of this interface must be called
 * in the following order: <tt>visit</tt> [ <tt>visitSource</tt> ] [
 * <tt>visitOuterClass</tt> ] ( <tt>visitAnnotation</tt> |
 * <tt>visitAttribute</tt> )* (<tt>visitInnerClass</tt> |
 * <tt>visitField</tt> | <tt>visitMethod</tt> )* <tt>visitEnd</tt>.
 *
 * @author Eric Bruneton
 */
public interface ClassVisitor {

    
Visits the header of the class.
Params:
version – the class version.
access – the class's access flags (see Opcodes). This parameter also indicates if the class is deprecated.
name – the internal name of the class (see getInternalName).
signature – the signature of this class. May be null if
       the class is not a generic one, and does not extend or implement
       generic classes or interfaces.
superName – the internal of name of the super class (see getInternalName). For interfaces, the super class is Object. May be null, but only for the Object class.
interfaces – the internal names of the class's interfaces (see getInternalName). May be null./**
     * Visits the header of the class.
     *
     * @param version the class version.
     * @param access the class's access flags (see {@link Opcodes}). This
     *        parameter also indicates if the class is deprecated.
     * @param name the internal name of the class (see
     *        {@link Type#getInternalName() getInternalName}).
     * @param signature the signature of this class. May be <tt>null</tt> if
     *        the class is not a generic one, and does not extend or implement
     *        generic classes or interfaces.
     * @param superName the internal of name of the super class (see
     *        {@link Type#getInternalName() getInternalName}). For interfaces,
     *        the super class is {@link Object}. May be <tt>null</tt>, but
     *        only for the {@link Object} class.
     * @param interfaces the internal names of the class's interfaces (see
     *        {@link Type#getInternalName() getInternalName}). May be
     *        <tt>null</tt>.
     */
    void visit(
        int version,
        int access,
        String name,
        String signature,
        String superName,
        String[] interfaces);

    
Visits the source of the class.
Params:
source – the name of the source file from which the class was
       compiled. May be null.
debug – additional debug information to compute the correspondance
       between source and compiled elements of the class. May be
       null./**
     * Visits the source of the class.
     *
     * @param source the name of the source file from which the class was
     *        compiled. May be <tt>null</tt>.
     * @param debug additional debug information to compute the correspondance
     *        between source and compiled elements of the class. May be
     *        <tt>null</tt>.
     */
    void visitSource(String source, String debug);

    
Visits the enclosing class of the class. This method must be called only
if the class has an enclosing class.
Params:
owner – internal name of the enclosing class of the class.
name – the name of the method that contains the class, or
       null if the class is not enclosed in a method of its
       enclosing class.
desc – the descriptor of the method that contains the class, or
       null if the class is not enclosed in a method of its
       enclosing class./**
     * Visits the enclosing class of the class. This method must be called only
     * if the class has an enclosing class.
     *
     * @param owner internal name of the enclosing class of the class.
     * @param name the name of the method that contains the class, or
     *        <tt>null</tt> if the class is not enclosed in a method of its
     *        enclosing class.
     * @param desc the descriptor of the method that contains the class, or
     *        <tt>null</tt> if the class is not enclosed in a method of its
     *        enclosing class.
     */
    void visitOuterClass(String owner, String name, String desc);

    
Visits an annotation of the class.
Params:
desc – the class descriptor of the annotation class.
visible – true if the annotation is visible at runtime.
Returns:
a visitor to visit the annotation values, or null if
        this visitor is not interested in visiting this annotation./**
     * Visits an annotation of the class.
     *
     * @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, or <tt>null</tt> if
     *         this visitor is not interested in visiting this annotation.
     */
    AnnotationVisitor visitAnnotation(String desc, boolean visible);

    
Visits a non standard attribute of the class.
Params:
attr – an attribute./**
     * Visits a non standard attribute of the class.
     *
     * @param attr an attribute.
     */
    void visitAttribute(Attribute attr);

    
Visits information about an inner class. This inner class is not
necessarily a member of the class being visited.
Params:
name – the internal name of an inner class (see getInternalName).
outerName – the internal name of the class to which the inner class belongs (see getInternalName). May be null for not member classes.
innerName – the (simple) name of the inner class inside its
       enclosing class. May be null for anonymous inner
       classes.
access – the access flags of the inner class as originally declared
       in the enclosing class./**
     * Visits information about an inner class. This inner class is not
     * necessarily a member of the class being visited.
     *
     * @param name the internal name of an inner class (see
     *        {@link Type#getInternalName() getInternalName}).
     * @param outerName the internal name of the class to which the inner class
     *        belongs (see {@link Type#getInternalName() getInternalName}). May
     *        be <tt>null</tt> for not member classes.
     * @param innerName the (simple) name of the inner class inside its
     *        enclosing class. May be <tt>null</tt> for anonymous inner
     *        classes.
     * @param access the access flags of the inner class as originally declared
     *        in the enclosing class.
     */
    void visitInnerClass(
        String name,
        String outerName,
        String innerName,
        int access);

    
Visits a field of the class.
Params:
access – the field's access flags (see Opcodes). This parameter also indicates if the field is synthetic and/or deprecated.
name – the field's name.
desc – the field's descriptor (see Type).
signature – the field's signature. May be null if the
       field's type does not use generic types.
value – the field's initial value. This parameter, which may be
       null if the field does not have an initial value, must be an Integer, a Float, a Long, a Double or a String (for int,
       float, long or String fields
       respectively). This parameter is only used for static fields.
       Its value is ignored for non static fields, which must be
       initialized through bytecode instructions in constructors or
       methods.
Returns:
a visitor to visit field annotations and attributes, or
        null if this class visitor is not interested in
        visiting these annotations and attributes./**
     * Visits a field of the class.
     *
     * @param access the field's access flags (see {@link Opcodes}). This
     *        parameter also indicates if the field is synthetic and/or
     *        deprecated.
     * @param name the field's name.
     * @param desc the field's descriptor (see {@link Type Type}).
     * @param signature the field's signature. May be <tt>null</tt> if the
     *        field's type does not use generic types.
     * @param value the field's initial value. This parameter, which may be
     *        <tt>null</tt> if the field does not have an initial value, must
     *        be an {@link Integer}, a {@link Float}, a {@link Long}, a
     *        {@link Double} or a {@link String} (for <tt>int</tt>,
     *        <tt>float</tt>, <tt>long</tt> or <tt>String</tt> fields
     *        respectively). <i>This parameter is only used for static fields</i>.
     *        Its value is ignored for non static fields, which must be
     *        initialized through bytecode instructions in constructors or
     *        methods.
     * @return a visitor to visit field annotations and attributes, or
     *         <tt>null</tt> if this class visitor is not interested in
     *         visiting these annotations and attributes.
     */
    FieldVisitor visitField(
        int access,
        String name,
        String desc,
        String signature,
        Object value);

    
Visits a method of the class. This method must return a new MethodVisitor instance (or null) each time it is
called, i.e., it should not return a previously returned visitor.
Params:
access – the method's access flags (see Opcodes). This parameter also indicates if the method is synthetic and/or deprecated.
name – the method's name.
desc – the method's descriptor (see Type).
signature – the method's signature. May be null if the
       method parameters, return type and exceptions do not use generic
       types.
exceptions – the internal names of the method's exception classes (see getInternalName). May be null.
Returns:
an object to visit the byte code of the method, or null
        if this class visitor is not interested in visiting the code of
        this method./**
     * Visits a method of the class. This method <i>must</i> return a new
     * {@link MethodVisitor} instance (or <tt>null</tt>) each time it is
     * called, i.e., it should not return a previously returned visitor.
     *
     * @param access the method's access flags (see {@link Opcodes}). This
     *        parameter also indicates if the method is synthetic and/or
     *        deprecated.
     * @param name the method's name.
     * @param desc the method's descriptor (see {@link Type Type}).
     * @param signature the method's signature. May be <tt>null</tt> if the
     *        method parameters, return type and exceptions do not use generic
     *        types.
     * @param exceptions the internal names of the method's exception classes
     *        (see {@link Type#getInternalName() getInternalName}). May be
     *        <tt>null</tt>.
     * @return an object to visit the byte code of the method, or <tt>null</tt>
     *         if this class visitor is not interested in visiting the code of
     *         this method.
     */
    MethodVisitor visitMethod(
        int access,
        String name,
        String desc,
        String signature,
        String[] exceptions);

    
Visits the end of the class. This method, which is the last one to be
called, is used to inform the visitor that all the fields and methods of
the class have been visited.
/**
     * Visits the end of the class. This method, which is the last one to be
     * called, is used to inform the visitor that all the fields and methods of
     * the class have been visited.
     */
    void visitEnd();
}