| /* |
| * reserved comment block |
| * DO NOT REMOVE OR ALTER! |
| */ |
| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You 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 com.sun.org.apache.bcel.internal.classfile; |
| |
| import java.io.DataInput; |
| import java.io.DataOutputStream; |
| import java.io.IOException; |
| |
| import com.sun.org.apache.bcel.internal.Const; |
| |
| /** |
| * This class is derived from <em>Attribute</em> and denotes that this class |
| * is an Inner class of another. |
| * to the source file of this class. |
| * It is instantiated from the <em>Attribute.readAttribute()</em> method. |
| * |
| * @see Attribute |
| */ |
| public final class InnerClasses extends Attribute { |
| |
| private InnerClass[] inner_classes; |
| |
| |
| /** |
| * Initialize from another object. Note that both objects use the same |
| * references (shallow copy). Use clone() for a physical copy. |
| */ |
| public InnerClasses(final InnerClasses c) { |
| this(c.getNameIndex(), c.getLength(), c.getInnerClasses(), c.getConstantPool()); |
| } |
| |
| |
| /** |
| * @param name_index Index in constant pool to CONSTANT_Utf8 |
| * @param length Content length in bytes |
| * @param inner_classes array of inner classes attributes |
| * @param constant_pool Array of constants |
| */ |
| public InnerClasses(final int name_index, final int length, final InnerClass[] inner_classes, |
| final ConstantPool constant_pool) { |
| super(Const.ATTR_INNER_CLASSES, name_index, length, constant_pool); |
| this.inner_classes = inner_classes != null ? inner_classes : new InnerClass[0]; |
| } |
| |
| |
| /** |
| * Construct object from input stream. |
| * |
| * @param name_index Index in constant pool to CONSTANT_Utf8 |
| * @param length Content length in bytes |
| * @param input Input stream |
| * @param constant_pool Array of constants |
| * @throws IOException |
| */ |
| InnerClasses(final int name_index, final int length, final DataInput input, final ConstantPool constant_pool) |
| throws IOException { |
| this(name_index, length, (InnerClass[]) null, constant_pool); |
| final int number_of_classes = input.readUnsignedShort(); |
| inner_classes = new InnerClass[number_of_classes]; |
| for (int i = 0; i < number_of_classes; i++) { |
| inner_classes[i] = new InnerClass(input); |
| } |
| } |
| |
| |
| /** |
| * Called by objects that are traversing the nodes of the tree implicitely |
| * defined by the contents of a Java class. I.e., the hierarchy of methods, |
| * fields, attributes, etc. spawns a tree of objects. |
| * |
| * @param v Visitor object |
| */ |
| @Override |
| public void accept( final Visitor v ) { |
| v.visitInnerClasses(this); |
| } |
| |
| |
| /** |
| * Dump source file attribute to file stream in binary format. |
| * |
| * @param file Output file stream |
| * @throws IOException |
| */ |
| @Override |
| public void dump( final DataOutputStream file ) throws IOException { |
| super.dump(file); |
| file.writeShort(inner_classes.length); |
| for (final InnerClass inner_class : inner_classes) { |
| inner_class.dump(file); |
| } |
| } |
| |
| |
| /** |
| * @return array of inner class "records" |
| */ |
| public InnerClass[] getInnerClasses() { |
| return inner_classes; |
| } |
| |
| |
| /** |
| * @param inner_classes the array of inner classes |
| */ |
| public void setInnerClasses( final InnerClass[] inner_classes ) { |
| this.inner_classes = inner_classes != null ? inner_classes : new InnerClass[0]; |
| } |
| |
| |
| /** |
| * @return String representation. |
| */ |
| @Override |
| public String toString() { |
| final StringBuilder buf = new StringBuilder(); |
| buf.append("InnerClasses("); |
| buf.append(inner_classes.length); |
| buf.append("):\n"); |
| for (final InnerClass inner_class : inner_classes) { |
| buf.append(inner_class.toString(super.getConstantPool())).append("\n"); |
| } |
| return buf.substring(0, buf.length()-1); // remove the last newline |
| } |
| |
| |
| /** |
| * @return deep copy of this attribute |
| */ |
| @Override |
| public Attribute copy( final ConstantPool _constant_pool ) { |
| // TODO this could be recoded to use a lower level constructor after creating a copy of the inner classes |
| final InnerClasses c = (InnerClasses) clone(); |
| c.inner_classes = new InnerClass[inner_classes.length]; |
| for (int i = 0; i < inner_classes.length; i++) { |
| c.inner_classes[i] = inner_classes[i].copy(); |
| } |
| c.setConstantPool(_constant_pool); |
| return c; |
| } |
| } |