1 /* 2 * Licensed to the Apache Software Foundation (ASF) under one or more 3 * contributor license agreements. See the NOTICE file distributed with 4 * this work for additional information regarding copyright ownership. 5 * The ASF licenses this file to You under the Apache License, Version 2.0 6 * (the "License"); you may not use this file except in compliance with 7 * the License. You may obtain a copy of the License at 8 * 9 * http://www.apache.org/licenses/LICENSE-2.0 10 * 11 * Unless required by applicable law or agreed to in writing, software 12 * distributed under the License is distributed on an "AS IS" BASIS, 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 * See the License for the specific language governing permissions and 15 * limitations under the License. 16 * 17 */ 18 package org.apache.bcel.classfile; 19 20 import java.io.DataOutputStream; 21 import java.io.IOException; 22 23 import org.apache.bcel.Const; 24 25 /** 26 * @since 6.0 27 */ 28 public class EnumElementValue extends ElementValue 29 { 30 // For enum types, these two indices point to the type and value 31 private final int typeIdx; 32 33 private final int valueIdx; 34 EnumElementValue(final int type, final int typeIdx, final int valueIdx, final ConstantPool cpool)35 public EnumElementValue(final int type, final int typeIdx, final int valueIdx, 36 final ConstantPool cpool) 37 { 38 super(type, cpool); 39 if (type != ENUM_CONSTANT) { 40 throw new RuntimeException( 41 "Only element values of type enum can be built with this ctor - type specified: " + type); 42 } 43 this.typeIdx = typeIdx; 44 this.valueIdx = valueIdx; 45 } 46 47 @Override dump(final DataOutputStream dos)48 public void dump(final DataOutputStream dos) throws IOException 49 { 50 dos.writeByte(super.getType()); // u1 type of value (ENUM_CONSTANT == 'e') 51 dos.writeShort(typeIdx); // u2 52 dos.writeShort(valueIdx); // u2 53 } 54 55 @Override stringifyValue()56 public String stringifyValue() 57 { 58 final ConstantUtf8 cu8 = (ConstantUtf8) super.getConstantPool().getConstant(valueIdx, 59 Const.CONSTANT_Utf8); 60 return cu8.getBytes(); 61 } 62 getEnumTypeString()63 public String getEnumTypeString() 64 { 65 final ConstantUtf8 cu8 = (ConstantUtf8) super.getConstantPool().getConstant(typeIdx, 66 Const.CONSTANT_Utf8); 67 return cu8.getBytes();// Utility.signatureToString(cu8.getBytes()); 68 } 69 getEnumValueString()70 public String getEnumValueString() 71 { 72 final ConstantUtf8 cu8 = (ConstantUtf8) super.getConstantPool().getConstant(valueIdx, 73 Const.CONSTANT_Utf8); 74 return cu8.getBytes(); 75 } 76 getValueIndex()77 public int getValueIndex() 78 { 79 return valueIdx; 80 } 81 getTypeIndex()82 public int getTypeIndex() 83 { 84 return typeIdx; 85 } 86 } 87