org.apache.tools.ant.taskdefs.optional.depend.constantpool.InvokeDynamicCPInfo Maven / Gradle / Ivy
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* 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
*
* https://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.tools.ant.taskdefs.optional.depend.constantpool;
import java.io.DataInputStream;
import java.io.IOException;
/**
* An InvokeDynamic CP Info
*
*/
public class InvokeDynamicCPInfo extends ConstantCPInfo {
/** Index into the bootstrap methods for the class */
private int bootstrapMethodAttrIndex;
/** the value of the method descriptor pointed to */
private int nameAndTypeIndex;
/** the name and type CP info pointed to */
private NameAndTypeCPInfo nameAndTypeCPInfo;
/** Constructor. */
public InvokeDynamicCPInfo() {
super(CONSTANT_INVOKEDYNAMIC, 1);
}
/**
* read a constant pool entry from a class stream.
*
* @param cpStream the DataInputStream which contains the constant pool
* entry to be read.
* @exception IOException if there is a problem reading the entry from
* the stream.
*/
@Override
public void read(DataInputStream cpStream) throws IOException {
bootstrapMethodAttrIndex = cpStream.readUnsignedShort();
nameAndTypeIndex = cpStream.readUnsignedShort();
}
/**
* Print a readable version of the constant pool entry.
*
* @return the string representation of this constant pool entry.
*/
@Override
public String toString() {
if (isResolved()) {
return "Name = " + nameAndTypeCPInfo.getName() + ", type = "
+ nameAndTypeCPInfo.getType();
}
return "BootstrapMethodAttrIndex inx = " + bootstrapMethodAttrIndex
+ "NameAndType index = " + nameAndTypeIndex;
}
/**
* Resolve this constant pool entry with respect to its dependents in
* the constant pool.
*
* @param constantPool the constant pool of which this entry is a member
* and against which this entry is to be resolved.
*/
@Override
public void resolve(ConstantPool constantPool) {
nameAndTypeCPInfo
= (NameAndTypeCPInfo) constantPool.getEntry(nameAndTypeIndex);
nameAndTypeCPInfo.resolve(constantPool);
super.resolve(constantPool);
}
}