ConstantCP.java
- /*
- * 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 org.apache.bcel.classfile;
- import java.io.DataInput;
- import java.io.DataOutputStream;
- import java.io.IOException;
- import org.apache.bcel.Const;
- /**
- * Abstract super class for Fieldref, Methodref, InterfaceMethodref and InvokeDynamic constants.
- *
- * @see ConstantFieldref
- * @see ConstantMethodref
- * @see ConstantInterfaceMethodref
- * @see ConstantInvokeDynamic
- */
- public abstract class ConstantCP extends Constant {
- /**
- * References to the constants containing the class and the field signature
- */
- // Note that this field is used to store the
- // bootstrap_method_attr_index of a ConstantInvokeDynamic.
- /**
- * @deprecated (since 6.0) will be made private; do not access directly, use getter/setter
- */
- @java.lang.Deprecated
- protected int class_index; // TODO make private (has getter & setter)
- // This field has the same meaning for all subclasses.
- /**
- * @deprecated (since 6.0) will be made private; do not access directly, use getter/setter
- */
- @java.lang.Deprecated
- protected int name_and_type_index; // TODO make private (has getter & setter)
- /**
- * Initialize instance from file data.
- *
- * @param tag Constant type tag
- * @param file Input stream
- * @throws IOException if an I/O error occurs.
- */
- ConstantCP(final byte tag, final DataInput file) throws IOException {
- this(tag, file.readUnsignedShort(), file.readUnsignedShort());
- }
- /**
- * @param classIndex Reference to the class containing the field
- * @param nameAndTypeIndex and the field signature
- */
- protected ConstantCP(final byte tag, final int classIndex, final int nameAndTypeIndex) {
- super(tag);
- this.class_index = classIndex;
- this.name_and_type_index = nameAndTypeIndex;
- }
- /**
- * Initialize from another object.
- *
- * @param c Source to copy.
- */
- public ConstantCP(final ConstantCP c) {
- this(c.getTag(), c.getClassIndex(), c.getNameAndTypeIndex());
- }
- /**
- * Dump constant field reference to file stream in binary format.
- *
- * @param file Output file stream
- * @throws IOException if an I/O error occurs.
- */
- @Override
- public final void dump(final DataOutputStream file) throws IOException {
- file.writeByte(super.getTag());
- file.writeShort(class_index);
- file.writeShort(name_and_type_index);
- }
- /**
- * @return Class this field belongs to.
- */
- public String getClass(final ConstantPool cp) {
- return cp.constantToString(class_index, Const.CONSTANT_Class);
- }
- /**
- * @return Reference (index) to class this constant refers 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 classIndex points to Constant_class
- */
- public final void setClassIndex(final int classIndex) {
- this.class_index = classIndex;
- }
- /**
- * @param nameAndTypeIndex points to Constant_NameAndType
- */
- public final void setNameAndTypeIndex(final int nameAndTypeIndex) {
- this.name_and_type_index = nameAndTypeIndex;
- }
- /**
- * @return String representation.
- *
- * not final as ConstantInvokeDynamic needs to modify
- */
- @Override
- public String toString() {
- return super.toString() + "(class_index = " + class_index + ", name_and_type_index = " + name_and_type_index + ")";
- }
- }