JDK14/Java14源码在线阅读

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 * Licensed to the Apache Software Foundation (ASF) under one or more
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 * this work for additional information regarding copyright ownership.
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 * (the "License"); you may not use this file except in compliance with
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 *      http://www.apache.org/licenses/LICENSE-2.0
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package com.sun.org.apache.bcel.internal.classfile;

import java.io.DataInput;
import java.io.IOException;

import com.sun.org.apache.bcel.internal.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
     */

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