| /* |
| * 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.*; |
| import com.sun.org.apache.bcel.internal.Constants; |
| |
| /** |
| * Abstract super class for Fieldref and Methodref constants. |
| * |
| * @author <A HREF="mailto:markus.dahm@berlin.de">M. Dahm</A> |
| * @see ConstantFieldref |
| * @see ConstantMethodref |
| * @see ConstantInterfaceMethodref |
| */ |
| public abstract class ConstantCP extends Constant { |
| /** References to the constants containing the class and the field signature |
| */ |
| protected int class_index, name_and_type_index; |
| |
| /** |
| * Initialize from another object. |
| */ |
| public ConstantCP(ConstantCP c) { |
| this(c.getTag(), c.getClassIndex(), c.getNameAndTypeIndex()); |
| } |
| |
| /** |
| * Initialize instance from file data. |
| * |
| * @param tag Constant type tag |
| * @param file Input stream |
| * @throws IOException |
| */ |
| ConstantCP(byte tag, DataInputStream file) throws IOException |
| { |
| this(tag, file.readUnsignedShort(), file.readUnsignedShort()); |
| } |
| |
| /** |
| * @param class_index Reference to the class containing the field |
| * @param name_and_type_index and the field signature |
| */ |
| protected ConstantCP(byte tag, int class_index, |
| int name_and_type_index) { |
| super(tag); |
| this.class_index = class_index; |
| this.name_and_type_index = name_and_type_index; |
| } |
| |
| /** |
| * Dump constant field reference to file stream in binary format. |
| * |
| * @param file Output file stream |
| * @throws IOException |
| */ |
| public final void dump(DataOutputStream file) throws IOException |
| { |
| file.writeByte(tag); |
| file.writeShort(class_index); |
| file.writeShort(name_and_type_index); |
| } |
| |
| /** |
| * @return Reference (index) to class this field or method belongs to. |
| */ |
| public final int getClassIndex() { return class_index; } |
| |
| /** |
| * @return Reference (index) to signature of the field. |
| */ |
| public final int getNameAndTypeIndex() { return name_and_type_index; } |
| |
| /** |
| * @param class_index points to Constant_class |
| */ |
| public final void setClassIndex(int class_index) { |
| this.class_index = class_index; |
| } |
| |
| /** |
| * @return Class this field belongs to. |
| */ |
| public String getClass(ConstantPool cp) { |
| return cp.constantToString(class_index, Constants.CONSTANT_Class); |
| } |
| |
| /** |
| * @param name_and_type_index points to Constant_NameAndType |
| */ |
| public final void setNameAndTypeIndex(int name_and_type_index) { |
| this.name_and_type_index = name_and_type_index; |
| } |
| |
| /** |
| * @return String representation. |
| */ |
| public final String toString() { |
| return super.toString() + "(class_index = " + class_index + |
| ", name_and_type_index = " + name_and_type_index + ")"; |
| } |
| } |