134 lines
4.3 KiB
Java
134 lines
4.3 KiB
Java
/***
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* ASM: a very small and fast Java bytecode manipulation framework
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* Copyright (c) 2000,2002,2003 INRIA, France Telecom
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the copyright holders nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
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* THE POSSIBILITY OF SUCH DAMAGE.
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*
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* Contact: Eric.Bruneton@rd.francetelecom.com
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*
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* Author: Eric Bruneton
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*/
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package org.objectweb.asm.tree;
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import org.objectweb.asm.ClassAdapter;
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import org.objectweb.asm.CodeVisitor;
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import org.objectweb.asm.ClassVisitor;
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import org.objectweb.asm.Attribute;
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/**
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* A {@link ClassAdapter ClassAdapter} that constructs a tree representation of
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* the classes it vists. Each <tt>visit</tt><i>XXX</i> method of this class
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* constructs an <i>XXX</i><tt>Node</tt> and adds it to the {@link #classNode
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* classNode} node (except the {@link #visitEnd visitEnd} method, which just
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* makes the {@link #cv cv} class visitor visit the tree that has just been
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* constructed).
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* <p>
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* In order to implement a usefull class adapter based on a tree representation
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* of classes, one just need to override the {@link #visitEnd visitEnd} method
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* with a method of the following form:
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* <pre>
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* public void visitEnd () {
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* // ...
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* // code to modify the classNode tree, can be arbitrary complex
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* // ...
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* // makes the cv visitor visit this modified class:
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* classNode.accept(cv);
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* }
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* </pre>
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*/
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public class TreeClassAdapter extends ClassAdapter {
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/**
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* A tree representation of the class that is being visited by this visitor.
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*/
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public ClassNode classNode;
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/**
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* Constructs a new {@link TreeClassAdapter TreeClassAdapter} object.
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*
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* @param cv the class visitor to which this adapter must delegate calls.
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*/
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public TreeClassAdapter (final ClassVisitor cv) {
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super(cv);
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}
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public void visit (
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final int access,
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final String name,
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final String superName,
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final String[] interfaces,
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final String sourceFile)
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{
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classNode = new ClassNode(access, name, superName, interfaces, sourceFile);
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}
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public void visitInnerClass (
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final String name,
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final String outerName,
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final String innerName,
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final int access)
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{
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InnerClassNode icn = new InnerClassNode(name, outerName, innerName, access);
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classNode.innerClasses.add(icn);
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}
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public void visitField (
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final int access,
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final String name,
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final String desc,
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final Object value,
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final Attribute attrs)
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{
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FieldNode fn = new FieldNode(access, name, desc, value, attrs);
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classNode.fields.add(fn);
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}
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public CodeVisitor visitMethod (
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final int access,
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final String name,
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final String desc,
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final String[] exceptions,
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final Attribute attrs)
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{
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MethodNode mn = new MethodNode(access, name, desc, exceptions, attrs);
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classNode.methods.add(mn);
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return new TreeCodeAdapter(mn);
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}
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public void visitAttribute (final Attribute attr) {
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attr.next = classNode.attrs;
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classNode.attrs = attr;
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}
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public void visitEnd () {
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classNode.accept(cv);
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}
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}
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