org.teatrove.trove.classfile.InnerClassesAttr Maven / Gradle / Ivy

Go to download
Show more of this group Show more artifacts with this name
Show all versions of trove Show documentation
Utility methods in use through-out Tea development.
The newest version!
/*
 *  Copyright 1997-2011 teatrove.org
 *
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 */

package org.teatrove.trove.classfile;

import java.util.*;
import java.io.*;

/**
 * This class corresponds to the InnerClasses_attribute structure introduced in
 * JDK1.1. It is not defined in the first edition of 
 * The Java Virual Machine Specification.
 * 
 * @author Brian S O'Neill
 */
class InnerClassesAttr extends Attribute {
    private List mInnerClasses = new ArrayList();

    public InnerClassesAttr(ConstantPool cp) {
        super(cp, INNER_CLASSES);
    }

    /**
     * @param inner The full inner class name
     * @param outer The full outer class name
     * @param name The simple name of the inner class, or null if anonymous
     * @param modifiers Modifiers for the inner class
     */
    public void addInnerClass(String inner,
                              String outer,
                              String name,
                              Modifiers modifiers) {
        
        ConstantClassInfo innerInfo = ConstantClassInfo.make(mCp, inner);
        ConstantClassInfo outerInfo; 
        if (outer == null) {
            outerInfo = null;
        }
        else {
            outerInfo = ConstantClassInfo.make(mCp, outer);
        }

        ConstantUTFInfo nameInfo;
        if (name == null) {
            nameInfo = null;
        }
        else {
            nameInfo = ConstantUTFInfo.make(mCp, name);
        }

        mInnerClasses.add(new Info(innerInfo, outerInfo, nameInfo, 
                                   modifiers.getModifier()));
    }

    public Info[] getInnerClassesInfo() {
        Info[] infos = new Info[mInnerClasses.size()];
        return (Info[])mInnerClasses.toArray(infos);
    }

    public int getLength() {
        return 2 + 8 * mInnerClasses.size();
    }

    public void writeDataTo(DataOutput dout) throws IOException {
        int size = mInnerClasses.size();
        dout.writeShort(size);
        for (int i=0; i