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 * 017 */ 018package org.apache.bcel.classfile; 019 020import java.io.DataOutputStream; 021import java.io.IOException; 022 023import org.apache.bcel.Const; 024 025/** 026 * @since 6.0 027 */ 028public class EnumElementValue extends ElementValue 029{ 030 // For enum types, these two indices point to the type and value 031 private final int typeIdx; 032 033 private final int valueIdx; 034 035 public EnumElementValue(final int type, final int typeIdx, final int valueIdx, 036 final ConstantPool cpool) 037 { 038 super(type, cpool); 039 if (type != ENUM_CONSTANT) { 040 throw new RuntimeException( 041 "Only element values of type enum can be built with this ctor - type specified: " + type); 042 } 043 this.typeIdx = typeIdx; 044 this.valueIdx = valueIdx; 045 } 046 047 @Override 048 public void dump(final DataOutputStream dos) throws IOException 049 { 050 dos.writeByte(super.getType()); // u1 type of value (ENUM_CONSTANT == 'e') 051 dos.writeShort(typeIdx); // u2 052 dos.writeShort(valueIdx); // u2 053 } 054 055 @Override 056 public String stringifyValue() 057 { 058 final ConstantUtf8 cu8 = (ConstantUtf8) super.getConstantPool().getConstant(valueIdx, 059 Const.CONSTANT_Utf8); 060 return cu8.getBytes(); 061 } 062 063 public String getEnumTypeString() 064 { 065 final ConstantUtf8 cu8 = (ConstantUtf8) super.getConstantPool().getConstant(typeIdx, 066 Const.CONSTANT_Utf8); 067 return cu8.getBytes();// Utility.signatureToString(cu8.getBytes()); 068 } 069 070 public String getEnumValueString() 071 { 072 final ConstantUtf8 cu8 = (ConstantUtf8) super.getConstantPool().getConstant(valueIdx, 073 Const.CONSTANT_Utf8); 074 return cu8.getBytes(); 075 } 076 077 public int getValueIndex() 078 { 079 return valueIdx; 080 } 081 082 public int getTypeIndex() 083 { 084 return typeIdx; 085 } 086}