169e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal/*
269e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal * Javassist, a Java-bytecode translator toolkit.
369e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal * Copyright (C) 1999-2007 Shigeru Chiba. All Rights Reserved.
469e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal *
569e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal * The contents of this file are subject to the Mozilla Public License Version
669e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal * 1.1 (the "License"); you may not use this file except in compliance with
769e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal * the License.  Alternatively, the contents of this file may be used under
869e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal * the terms of the GNU Lesser General Public License Version 2.1 or later.
969e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal *
1069e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal * Software distributed under the License is distributed on an "AS IS" basis,
1169e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
1269e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal * for the specific language governing rights and limitations under the
1369e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal * License.
1469e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal */
1569e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal
1669e17611504376e4d4603925f8528dfc890fd2c6Luis Sigalpackage javassist.bytecode;
1769e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal
1869e17611504376e4d4603925f8528dfc890fd2c6Luis Sigalimport java.io.DataInputStream;
1969e17611504376e4d4603925f8528dfc890fd2c6Luis Sigalimport java.io.DataOutputStream;
2069e17611504376e4d4603925f8528dfc890fd2c6Luis Sigalimport java.io.IOException;
2169e17611504376e4d4603925f8528dfc890fd2c6Luis Sigalimport java.util.Map;
2269e17611504376e4d4603925f8528dfc890fd2c6Luis Sigalimport java.util.ArrayList;
2369e17611504376e4d4603925f8528dfc890fd2c6Luis Sigalimport java.util.ListIterator;
2469e17611504376e4d4603925f8528dfc890fd2c6Luis Sigalimport java.util.List;
2569e17611504376e4d4603925f8528dfc890fd2c6Luis Sigalimport java.util.Iterator;
2669e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal
2769e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal// Note: if you define a new subclass of AttributeInfo, then
2869e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal//       update AttributeInfo.read(), .copy(), and (maybe) write().
2969e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal
3069e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal/**
3169e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal * <code>attribute_info</code> structure.
3269e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal */
3369e17611504376e4d4603925f8528dfc890fd2c6Luis Sigalpublic class AttributeInfo {
3469e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal    protected ConstPool constPool;
3569e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal    int name;
3669e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal    byte[] info;
3769e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal
3869e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal    protected AttributeInfo(ConstPool cp, int attrname, byte[] attrinfo) {
3969e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal        constPool = cp;
4069e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal        name = attrname;
4169e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal        info = attrinfo;
4269e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal    }
4369e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal
4469e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal    protected AttributeInfo(ConstPool cp, String attrname) {
4569e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal        this(cp, attrname, (byte[])null);
4669e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal    }
4769e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal
4869e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal    /**
4969e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal     * Constructs an <code>attribute_info</code> structure.
5069e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal     *
5169e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal     * @param cp                constant pool table
5269e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal     * @param attrname          attribute name
5369e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal     * @param attrinfo          <code>info</code> field
5469e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal     *                          of <code>attribute_info</code> structure.
5569e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal     */
5669e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal    public AttributeInfo(ConstPool cp, String attrname, byte[] attrinfo) {
5769e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal        this(cp, cp.addUtf8Info(attrname), attrinfo);
5869e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal    }
5969e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal
6069e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal    protected AttributeInfo(ConstPool cp, int n, DataInputStream in)
6169e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal        throws IOException
6269e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal    {
6369e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal        constPool = cp;
6469e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal        name = n;
6569e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal        int len = in.readInt();
6669e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal        info = new byte[len];
6769e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal        if (len > 0)
6869e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal            in.readFully(info);
6969e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal    }
7069e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal
7169e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal    static AttributeInfo read(ConstPool cp, DataInputStream in)
7269e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal        throws IOException
7369e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal    {
7469e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal        int name = in.readUnsignedShort();
7569e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal        String nameStr = cp.getUtf8Info(name);
7669e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal        if (nameStr.charAt(0) < 'L') {
7769e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal            if (nameStr.equals(AnnotationDefaultAttribute.tag))
7869e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal                return new AnnotationDefaultAttribute(cp, name, in);
7969e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal            else if (nameStr.equals(CodeAttribute.tag))
8069e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal                return new CodeAttribute(cp, name, in);
8169e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal            else if (nameStr.equals(ConstantAttribute.tag))
8269e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal                return new ConstantAttribute(cp, name, in);
8369e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal            else if (nameStr.equals(DeprecatedAttribute.tag))
8469e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal                return new DeprecatedAttribute(cp, name, in);
8569e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal            else if (nameStr.equals(EnclosingMethodAttribute.tag))
8669e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal                return new EnclosingMethodAttribute(cp, name, in);
8769e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal            else if (nameStr.equals(ExceptionsAttribute.tag))
8869e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal                return new ExceptionsAttribute(cp, name, in);
8969e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal            else if (nameStr.equals(InnerClassesAttribute.tag))
9069e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal                return new InnerClassesAttribute(cp, name, in);
9169e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal        }
9269e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal        else {
9369e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal            /* Note that the names of Annotations attributes begin with 'R'.
9469e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal             */
9569e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal            if (nameStr.equals(LineNumberAttribute.tag))
9669e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal                return new LineNumberAttribute(cp, name, in);
9769e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal            else if (nameStr.equals(LocalVariableAttribute.tag))
9869e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal                return new LocalVariableAttribute(cp, name, in);
9969e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal            else if (nameStr.equals(LocalVariableTypeAttribute.tag))
10069e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal                return new LocalVariableTypeAttribute(cp, name, in);
10169e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal            else if (nameStr.equals(AnnotationsAttribute.visibleTag)
10269e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal                     || nameStr.equals(AnnotationsAttribute.invisibleTag)) {
10369e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal                // RuntimeVisibleAnnotations or RuntimeInvisibleAnnotations
10469e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal                return new AnnotationsAttribute(cp, name, in);
10569e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal            }
10669e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal            else if (nameStr.equals(ParameterAnnotationsAttribute.visibleTag)
10769e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal                || nameStr.equals(ParameterAnnotationsAttribute.invisibleTag))
10869e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal                return new ParameterAnnotationsAttribute(cp, name, in);
10969e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal            else if (nameStr.equals(SignatureAttribute.tag))
11069e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal                return new SignatureAttribute(cp, name, in);
11169e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal            else if (nameStr.equals(SourceFileAttribute.tag))
11269e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal                return new SourceFileAttribute(cp, name, in);
11369e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal            else if (nameStr.equals(SyntheticAttribute.tag))
11469e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal                return new SyntheticAttribute(cp, name, in);
11569e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal            else if (nameStr.equals(StackMap.tag))
11669e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal                return new StackMap(cp, name, in);
11769e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal            else if (nameStr.equals(StackMapTable.tag))
11869e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal                return new StackMapTable(cp, name, in);
11969e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal        }
12069e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal
12169e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal        return new AttributeInfo(cp, name, in);
12269e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal    }
12369e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal
12469e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal    /**
12569e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal     * Returns an attribute name.
12669e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal     */
12769e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal    public String getName() {
12869e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal        return constPool.getUtf8Info(name);
12969e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal    }
13069e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal
13169e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal    /**
13269e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal     * Returns a constant pool table.
13369e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal     */
13469e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal    public ConstPool getConstPool() { return constPool; }
13569e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal
13669e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal    /**
13769e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal     * Returns the length of this <code>attribute_info</code>
13869e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal     * structure.
13969e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal     * The returned value is <code>attribute_length + 6</code>.
14069e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal     */
14169e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal    public int length() {
14269e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal        return info.length + 6;
14369e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal    }
14469e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal
14569e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal    /**
14669e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal     * Returns the <code>info</code> field
14769e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal     * of this <code>attribute_info</code> structure.
14869e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal     *
14969e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal     * <p>This method is not available if the object is an instance
15069e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal     * of <code>CodeAttribute</code>.
15169e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal     */
15269e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal    public byte[] get() { return info; }
15369e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal
15469e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal    /**
15569e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal     * Sets the <code>info</code> field
15669e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal     * of this <code>attribute_info</code> structure.
15769e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal     *
15869e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal     * <p>This method is not available if the object is an instance
15969e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal     * of <code>CodeAttribute</code>.
16069e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal     */
16169e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal    public void set(byte[] newinfo) { info = newinfo; }
16269e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal
16369e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal    /**
16469e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal     * Makes a copy.  Class names are replaced according to the
16569e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal     * given <code>Map</code> object.
16669e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal     *
16769e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal     * @param newCp     the constant pool table used by the new copy.
16869e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal     * @param classnames        pairs of replaced and substituted
16969e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal     *                          class names.
17069e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal     */
17169e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal    public AttributeInfo copy(ConstPool newCp, Map classnames) {
17269e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal        int s = info.length;
17369e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal        byte[] srcInfo = info;
17469e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal        byte[] newInfo = new byte[s];
17569e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal        for (int i = 0; i < s; ++i)
17669e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal            newInfo[i] = srcInfo[i];
17769e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal
17869e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal        return new AttributeInfo(newCp, getName(), newInfo);
17969e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal    }
18069e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal
18169e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal    void write(DataOutputStream out) throws IOException {
18269e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal        out.writeShort(name);
18369e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal        out.writeInt(info.length);
18469e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal        if (info.length > 0)
18569e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal            out.write(info);
18669e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal    }
18769e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal
18869e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal    static int getLength(ArrayList list) {
18969e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal        int size = 0;
19069e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal        int n = list.size();
19169e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal        for (int i = 0; i < n; ++i) {
19269e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal            AttributeInfo attr = (AttributeInfo)list.get(i);
19369e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal            size += attr.length();
19469e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal        }
19569e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal
19669e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal        return size;
19769e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal    }
19869e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal
19969e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal    static AttributeInfo lookup(ArrayList list, String name) {
20069e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal        if (list == null)
20169e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal            return null;
20269e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal
20369e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal        ListIterator iterator = list.listIterator();
20469e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal        while (iterator.hasNext()) {
20569e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal            AttributeInfo ai = (AttributeInfo)iterator.next();
20669e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal            if (ai.getName().equals(name))
20769e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal                return ai;
20869e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal        }
20969e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal
21069e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal        return null;            // no such attribute
21169e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal    }
21269e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal
21369e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal    static synchronized void remove(ArrayList list, String name) {
21469e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal        if (list == null)
21569e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal            return;
21669e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal
21769e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal        ListIterator iterator = list.listIterator();
21869e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal        while (iterator.hasNext()) {
21969e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal            AttributeInfo ai = (AttributeInfo)iterator.next();
22069e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal            if (ai.getName().equals(name))
22169e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal                iterator.remove();
22269e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal        }
22369e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal    }
22469e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal
22569e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal    static void writeAll(ArrayList list, DataOutputStream out)
22669e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal        throws IOException
22769e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal    {
22869e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal        if (list == null)
22969e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal            return;
23069e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal
23169e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal        int n = list.size();
23269e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal        for (int i = 0; i < n; ++i) {
23369e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal            AttributeInfo attr = (AttributeInfo)list.get(i);
23469e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal            attr.write(out);
23569e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal        }
23669e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal    }
23769e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal
23869e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal    static ArrayList copyAll(ArrayList list, ConstPool cp) {
23969e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal        if (list == null)
24069e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal            return null;
24169e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal
24269e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal        ArrayList newList = new ArrayList();
24369e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal        int n = list.size();
24469e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal        for (int i = 0; i < n; ++i) {
24569e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal            AttributeInfo attr = (AttributeInfo)list.get(i);
24669e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal            newList.add(attr.copy(cp, null));
24769e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal        }
24869e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal
24969e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal        return newList;
25069e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal    }
25169e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal
25269e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal    /* The following two methods are used to implement
25369e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal     * ClassFile.renameClass().
25469e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal     * Only CodeAttribute, LocalVariableAttribute,
25569e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal     * AnnotationsAttribute, and SignatureAttribute
25669e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal     * override these methods.
25769e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal     */
25869e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal    void renameClass(String oldname, String newname) {}
25969e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal    void renameClass(Map classnames) {}
26069e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal
26169e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal    static void renameClass(List attributes, String oldname, String newname) {
26269e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal        Iterator iterator = attributes.iterator();
26369e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal        while (iterator.hasNext()) {
26469e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal            AttributeInfo ai = (AttributeInfo)iterator.next();
26569e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal            ai.renameClass(oldname, newname);
26669e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal        }
26769e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal    }
26869e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal
26969e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal    static void renameClass(List attributes, Map classnames) {
27069e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal        Iterator iterator = attributes.iterator();
27169e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal        while (iterator.hasNext()) {
27269e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal            AttributeInfo ai = (AttributeInfo)iterator.next();
27369e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal            ai.renameClass(classnames);
27469e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal        }
27569e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal    }
27669e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal
27769e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal    void getRefClasses(Map classnames) {}
27869e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal
27969e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal    static void getRefClasses(List attributes, Map classnames) {
28069e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal        Iterator iterator = attributes.iterator();
28169e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal        while (iterator.hasNext()) {
28269e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal            AttributeInfo ai = (AttributeInfo)iterator.next();
28369e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal            ai.getRefClasses(classnames);
28469e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal        }
28569e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal    }
28669e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal}
287