oracle.toplink.libraries.asm.tree.TreeClassAdapter Maven / Gradle / Ivy
/***
* ASM: a very small and fast Java bytecode manipulation framework
* Copyright (c) 2000,2002,2003 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 oracle.toplink.libraries.asm.tree;
import oracle.toplink.libraries.asm.ClassAdapter;
import oracle.toplink.libraries.asm.CodeVisitor;
import oracle.toplink.libraries.asm.ClassVisitor;
import oracle.toplink.libraries.asm.Attribute;
/**
* A {@link ClassAdapter ClassAdapter} that constructs a tree representation of
* the classes it vists. Each visitXXX method of this class
* constructs an XXXNode and adds it to the {@link #classNode
* classNode} node (except the {@link #visitEnd visitEnd} method, which just
* makes the {@link #cv cv} class visitor visit the tree that has just been
* constructed).
*
* In order to implement a usefull class adapter based on a tree representation
* of classes, one just need to override the {@link #visitEnd visitEnd} method
* with a method of the following form:
*
* public void visitEnd () {
* // ...
* // code to modify the classNode tree, can be arbitrary complex
* // ...
* // makes the cv visitor visit this modified class:
* classNode.accept(cv);
* }
*
*
* @author Eric Bruneton
*/
public class TreeClassAdapter extends ClassAdapter {
/**
* A tree representation of the class that is being visited by this visitor.
*/
public ClassNode classNode;
/**
* Constructs a new {@link TreeClassAdapter TreeClassAdapter} object.
*
* @param cv the class visitor to which this adapter must delegate calls.
*/
public TreeClassAdapter (final ClassVisitor cv) {
super(cv);
}
public void visit (
final int version,
final int access,
final String name,
final String superName,
final String[] interfaces,
final String sourceFile)
{
classNode = new ClassNode(version, access, name, superName, interfaces, sourceFile);
}
public void visitInnerClass (
final String name,
final String outerName,
final String innerName,
final int access)
{
InnerClassNode icn = new InnerClassNode(name, outerName, innerName, access);
classNode.innerClasses.add(icn);
}
public void visitField (
final int access,
final String name,
final String desc,
final Object value,
final Attribute attrs)
{
FieldNode fn = new FieldNode(access, name, desc, value, attrs);
classNode.fields.add(fn);
}
public CodeVisitor visitMethod (
final int access,
final String name,
final String desc,
final String[] exceptions,
final Attribute attrs)
{
MethodNode mn = new MethodNode(access, name, desc, exceptions, attrs);
classNode.methods.add(mn);
return new TreeCodeAdapter(mn);
}
public void visitAttribute (final Attribute attr) {
attr.next = classNode.attrs;
classNode.attrs = attr;
}
public void visitEnd () {
if( cv!=null) {
classNode.accept(cv);
}
}
}