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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
*
* 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.IOException;
import org.apache.bcel.Const;
/**
* This class is derived from the abstract {@link Constant}
* and represents a reference to a invoke dynamic.
*
* @see Constant
* @see <a href="http://docs.oracle.com/javase/specs/jvms/se8/html/jvms-4.html#jvms-4.4.10">
* The CONSTANT_InvokeDynamic_info Structure in The Java Virtual Machine Specification</a>
* @since 6.0
*/
public final class ConstantInvokeDynamic extends ConstantCP {
/**
* Initialize from another object.
*/
public ConstantInvokeDynamic(final ConstantInvokeDynamic c) {
this(c.getBootstrapMethodAttrIndex(), c.getNameAndTypeIndex());
}
/**
* Initialize instance from file data.
*
* @param file Input stream
* @throws IOException
*/
ConstantInvokeDynamic(final DataInput file) throws IOException {
this(file.readShort(), file.readShort());
}
public ConstantInvokeDynamic(final int bootstrap_method_attr_index, final int name_and_type_index) {
super(Const.CONSTANT_InvokeDynamic, bootstrap_method_attr_index, name_and_type_index);
}
/**
* Called by objects that are traversing the nodes of the tree implicitly
* 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.visitConstantInvokeDynamic(this);
}
/**
* @return Reference (index) to bootstrap method this constant refers to.
*
* Note that this method is a functional duplicate of getClassIndex
* for use by ConstantInvokeDynamic.
* @since 6.0
*/
public final int getBootstrapMethodAttrIndex() {
return super.getClassIndex(); // AKA bootstrap_method_attr_index
}
/**
* @return String representation
*/
@Override
public final String toString() {
return super.toString().replace("class_index", "bootstrap_method_attr_index");
}
}
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