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 025 * class ref has two bytes. 026 */ 027public class NarrowClassRefForm extends ClassRefForm { 028 029 public NarrowClassRefForm(final int opcode, final String name, final int[] rewrite) { 030 super(opcode, name, rewrite); 031 } 032 033 public NarrowClassRefForm(final int opcode, final String name, final int[] rewrite, final boolean widened) { 034 super(opcode, name, rewrite, widened); 035 } 036 037 @Override 038 protected void setNestedEntries(final ByteCode byteCode, final OperandManager operandManager, final int offset) 039 throws Pack200Exception { 040 super.setNestedEntries(byteCode, operandManager, offset); 041 if (!widened) { 042 byteCode.setNestedPositions(new int[][] {{0, 1}}); 043 } 044 } 045 046 @Override 047 public boolean nestedMustStartClassPool() { 048 return !widened; 049 } 050}