001/*
002 * Licensed to the Apache Software Foundation (ASF) under one
003 * or more contributor license agreements.  See the NOTICE file
004 * distributed with this work for additional information
005 * regarding copyright ownership.  The ASF licenses this file
006 * to you under the Apache License, Version 2.0 (the
007 * "License"); you may not use this file except in compliance
008 * with the License.  You may obtain a copy of the License at
009 *
010 *   https://www.apache.org/licenses/LICENSE-2.0
011 *
012 * Unless required by applicable law or agreed to in writing,
013 * software distributed under the License is distributed on an
014 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
015 * KIND, either express or implied.  See the License for the
016 * specific language governing permissions and limitations
017 * under the License.
018 */
019package org.apache.commons.compress.harmony.unpack200.bytecode.forms;
020
021import org.apache.commons.compress.harmony.pack200.Pack200Exception;
022import org.apache.commons.compress.harmony.unpack200.bytecode.ByteCode;
023import org.apache.commons.compress.harmony.unpack200.bytecode.OperandManager;
024
025/**
026 * This class implements the byte code form for the multianewarray instruction. It has a class reference and a byte operand.
027 *
028 * MultiANewArrayForms (like other anewarray forms) do not track the last new().
029 */
030public class MultiANewArrayForm extends ClassRefForm {
031
032    /**
033     * Constructs a new instance with the specified opcode, name, operandType and rewrite.
034     *
035     * @param opcode  index corresponding to the opcode's value.
036     * @param name    String printable name of the opcode.
037     * @param rewrite Operand positions (which will later be rewritten in ByteCodes) are indicated by -1.
038     */
039    public MultiANewArrayForm(final int opcode, final String name, final int[] rewrite) {
040        super(opcode, name, rewrite);
041    }
042
043    /*
044     * (non-Javadoc)
045     *
046     * @see org.apache.commons.compress.harmony.unpack200.bytecode.forms.ByteCodeForm#setByteCodeOperands(org.apache.commons.
047     * compress.harmony.unpack200.bytecode.ByteCode, org.apache.commons.compress.harmony.unpack200.bytecode.OperandTable,
048     * org.apache.commons.compress.harmony.unpack200.SegmentConstantPool)
049     */
050    @Override
051    public void setByteCodeOperands(final ByteCode byteCode, final OperandManager operandManager, final int codeLength) throws Pack200Exception {
052        // multianewarray has a class ref and a dimension.
053        // The superclass handles the class ref.
054        super.setByteCodeOperands(byteCode, operandManager, codeLength);
055        // We have to handle the dimension.
056        final int dimension = operandManager.nextByte();
057        byteCode.setOperandByte(dimension, 2);
058    }
059}