1 /*
2 * Licensed to the Apache Software Foundation (ASF) under one
3 * or more contributor license agreements. See the NOTICE file
4 * distributed with this work for additional information
5 * regarding copyright ownership. The ASF licenses this file
6 * to you under the Apache License, Version 2.0 (the
7 * "License"); you may not use this file except in compliance
8 * with the License. You may obtain a copy of the License at
9 *
10 * https://www.apache.org/licenses/LICENSE-2.0
11 *
12 * Unless required by applicable law or agreed to in writing,
13 * software distributed under the License is distributed on an
14 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15 * KIND, either express or implied. See the License for the
16 * specific language governing permissions and limitations
17 * under the License.
18 */
19 package org.apache.commons.compress.harmony.unpack200.bytecode.forms;
20
21 import org.apache.commons.compress.harmony.unpack200.SegmentConstantPool;
22 import org.apache.commons.compress.harmony.unpack200.bytecode.OperandManager;
23
24 /**
25 * This class implements the byte code form for those bytecodes which have double references (and only double references).
26 */
27 public class DoubleForm extends ReferenceForm {
28
29 /**
30 * Constructs a new instance with the specified opcode, name, operandType and rewrite.
31 *
32 * @param opcode index corresponding to the opcode's value.
33 * @param name String printable name of the opcode.
34 * @param rewrite Operand positions (which will later be rewritten in ByteCodes) are indicated by -1.
35 */
36 public DoubleForm(final int opcode, final String name, final int[] rewrite) {
37 super(opcode, name, rewrite);
38 }
39
40 @Override
41 protected int getOffset(final OperandManager operandManager) {
42 return operandManager.nextDoubleRef();
43 }
44
45 @Override
46 protected int getPoolID() {
47 return SegmentConstantPool.CP_DOUBLE;
48 }
49 }