/*
 * Copyright (c) 2017, Oracle and/or its affiliates. All rights reserved.
 */
/*
 * 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 com.sun.org.apache.bcel.internal.generic;

import java.io.DataOutputStream;
import java.io.IOException;

import com.sun.org.apache.bcel.internal.Const;
import com.sun.org.apache.bcel.internal.ExceptionConst;
import com.sun.org.apache.bcel.internal.classfile.ConstantInvokeDynamic;
import com.sun.org.apache.bcel.internal.classfile.ConstantNameAndType;
import com.sun.org.apache.bcel.internal.classfile.ConstantPool;
import com.sun.org.apache.bcel.internal.util.ByteSequence;

Class for INVOKEDYNAMIC. Not an instance of InvokeInstruction, since that class expects to be able to get the class of the method. Ignores the bootstrap mechanism entirely.
See Also:
Version:$Id: InvokeInstruction.java 1152072 2011-07-29 01:54:05Z dbrosius $
Since:6.0
@LastModified: Nov 2017
/** * Class for INVOKEDYNAMIC. Not an instance of InvokeInstruction, since that class * expects to be able to get the class of the method. Ignores the bootstrap * mechanism entirely. * * @version $Id: InvokeInstruction.java 1152072 2011-07-29 01:54:05Z dbrosius $ * @see * <a href="http://docs.oracle.com/javase/specs/jvms/se8/html/jvms-6.html#jvms-6.5.invokedynamic"> * The invokedynamic instruction in The Java Virtual Machine Specification</a> * @since 6.0 * @LastModified: Nov 2017 */
public class INVOKEDYNAMIC extends InvokeInstruction {
Empty constructor needed for the Class.newInstance() statement in Instruction.readInstruction(). Not to be used otherwise.
/** * Empty constructor needed for the Class.newInstance() statement in * Instruction.readInstruction(). Not to be used otherwise. */
INVOKEDYNAMIC() { } public INVOKEDYNAMIC(final int index) { super(Const.INVOKEDYNAMIC, index); }
Dump instruction as byte code to stream out.
Params:
  • out – Output stream
/** * Dump instruction as byte code to stream out. * @param out Output stream */
@Override public void dump( final DataOutputStream out ) throws IOException { out.writeByte(super.getOpcode()); out.writeShort(super.getIndex()); out.writeByte(0); out.writeByte(0); }
Read needed data (i.e., index) from file.
/** * Read needed data (i.e., index) from file. */
@Override protected void initFromFile( final ByteSequence bytes, final boolean wide ) throws IOException { super.initFromFile(bytes, wide); super.setLength(5); bytes.readByte(); // Skip 0 byte bytes.readByte(); // Skip 0 byte }
Returns:mnemonic for instruction with symbolic references resolved
/** * @return mnemonic for instruction with symbolic references resolved */
@Override public String toString( final ConstantPool cp ) { return super.toString(cp); } @Override public Class<?>[] getExceptions() { return ExceptionConst.createExceptions(ExceptionConst.EXCS.EXCS_INTERFACE_METHOD_RESOLUTION, ExceptionConst.UNSATISFIED_LINK_ERROR, ExceptionConst.ABSTRACT_METHOD_ERROR, ExceptionConst.ILLEGAL_ACCESS_ERROR, ExceptionConst.INCOMPATIBLE_CLASS_CHANGE_ERROR); }
Call corresponding visitor method(s). The order is: Call visitor methods of implemented interfaces first, then call methods according to the class hierarchy in descending order, i.e., the most specific visitXXX() call comes last.
Params:
  • v – Visitor object
/** * Call corresponding visitor method(s). The order is: * Call visitor methods of implemented interfaces first, then * call methods according to the class hierarchy in descending order, * i.e., the most specific visitXXX() call comes last. * * @param v Visitor object */
@Override public void accept( final Visitor v ) { v.visitExceptionThrower(this); v.visitTypedInstruction(this); v.visitStackConsumer(this); v.visitStackProducer(this); v.visitLoadClass(this); v.visitCPInstruction(this); v.visitFieldOrMethod(this); v.visitInvokeInstruction(this); v.visitINVOKEDYNAMIC(this); }
Override the parent method because our classname is held elsewhere.
Params:
  • cpg – the ConstantPool generator
Deprecated:in FieldOrMethod
Returns:name of the referenced class/interface
/** * Override the parent method because our classname is held elsewhere. * * @param cpg the ConstantPool generator * @deprecated in FieldOrMethod * * @return name of the referenced class/interface */
@Override @Deprecated public String getClassName( final ConstantPoolGen cpg ) { final ConstantPool cp = cpg.getConstantPool(); final ConstantInvokeDynamic cid = (ConstantInvokeDynamic) cp.getConstant(super.getIndex(), Const.CONSTANT_InvokeDynamic); return ((ConstantNameAndType) cp.getConstant(cid.getNameAndTypeIndex())).getName(cp); } }