CPMember.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.commons.compress.harmony.unpack200.bytecode;
- import java.io.DataOutputStream;
- import java.io.IOException;
- import java.util.Collections;
- import java.util.List;
- import java.util.Objects;
- /**
- * Superclass for member constant pool entries, such as fields or methods.
- */
- public class CPMember extends ClassFileEntry {
- List<Attribute> attributes;
- short flags;
- CPUTF8 name;
- transient int nameIndex;
- protected final CPUTF8 descriptor;
- transient int descriptorIndex;
- /**
- * Constructs a new CPMember.
- *
- * @param name TODO
- * @param descriptor TODO
- * @param flags TODO
- * @param attributes TODO
- * @throws NullPointerException if name or descriptor is null
- */
- public CPMember(final CPUTF8 name, final CPUTF8 descriptor, final long flags, final List<Attribute> attributes) {
- this.name = Objects.requireNonNull(name, "name");
- this.descriptor = Objects.requireNonNull(descriptor, "descriptor");
- this.flags = (short) flags;
- this.attributes = attributes == null ? Collections.EMPTY_LIST : attributes;
- }
- @Override
- protected void doWrite(final DataOutputStream dos) throws IOException {
- dos.writeShort(flags);
- dos.writeShort(nameIndex);
- dos.writeShort(descriptorIndex);
- final int attributeCount = attributes.size();
- dos.writeShort(attributeCount);
- for (int i = 0; i < attributeCount; i++) {
- final Attribute attribute = attributes.get(i);
- attribute.doWrite(dos);
- }
- }
- @Override
- public boolean equals(final Object obj) {
- if (this == obj) {
- return true;
- }
- if (obj == null) {
- return false;
- }
- if (getClass() != obj.getClass()) {
- return false;
- }
- final CPMember other = (CPMember) obj;
- return Objects.equals(attributes, other.attributes)
- && Objects.equals(descriptor, other.descriptor)
- && flags == other.flags
- && Objects.equals(name, other.name);
- }
- @Override
- protected ClassFileEntry[] getNestedClassFileEntries() {
- final int attributeCount = attributes.size();
- final ClassFileEntry[] entries = new ClassFileEntry[attributeCount + 2];
- entries[0] = name;
- entries[1] = descriptor;
- for (int i = 0; i < attributeCount; i++) {
- entries[i + 2] = attributes.get(i);
- }
- return entries;
- }
- @Override
- public int hashCode() {
- final int PRIME = 31;
- int result = 1;
- result = PRIME * result + attributes.hashCode();
- result = PRIME * result + descriptor.hashCode();
- result = PRIME * result + flags;
- result = PRIME * result + name.hashCode();
- return result;
- }
- @Override
- protected void resolve(final ClassConstantPool pool) {
- super.resolve(pool);
- nameIndex = pool.indexOf(name);
- descriptorIndex = pool.indexOf(descriptor);
- attributes.forEach(attribute -> attribute.resolve(pool));
- }
- @Override
- public String toString() {
- return "CPMember: " + name + "(" + descriptor + ")";
- }
- }