001/* 002 * Licensed to the Apache Software Foundation (ASF) under one or more 003 * contributor license agreements. See the NOTICE file distributed with 004 * this work for additional information regarding copyright ownership. 005 * The ASF licenses this file to You under the Apache License, Version 2.0 006 * (the "License"); you may not use this file except in compliance with 007 * the License. You may obtain a copy of the License at 008 * 009 * http://www.apache.org/licenses/LICENSE-2.0 010 * 011 * Unless required by applicable law or agreed to in writing, software 012 * distributed under the License is distributed on an "AS IS" BASIS, 013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 014 * See the License for the specific language governing permissions and 015 * limitations under the License. 016 */ 017package org.apache.commons.compress.harmony.unpack200.bytecode.forms; 018 019import org.apache.commons.compress.harmony.pack200.Pack200Exception; 020import org.apache.commons.compress.harmony.unpack200.bytecode.ByteCode; 021import org.apache.commons.compress.harmony.unpack200.bytecode.OperandManager; 022 023/** 024 * This class is used for representations of cldc and cldc_w. In these cases, a narrow class ref has one byte and a wide class ref has two bytes. 025 */ 026public class NarrowClassRefForm extends ClassRefForm { 027 028 public NarrowClassRefForm(final int opcode, final String name, final int[] rewrite) { 029 super(opcode, name, rewrite); 030 } 031 032 public NarrowClassRefForm(final int opcode, final String name, final int[] rewrite, final boolean widened) { 033 super(opcode, name, rewrite, widened); 034 } 035 036 @Override 037 public boolean nestedMustStartClassPool() { 038 return !widened; 039 } 040 041 @Override 042 protected void setNestedEntries(final ByteCode byteCode, final OperandManager operandManager, final int offset) throws Pack200Exception { 043 super.setNestedEntries(byteCode, operandManager, offset); 044 if (!widened) { 045 byteCode.setNestedPositions(new int[][] { { 0, 1 } }); 046 } 047 } 048}