/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
package org.apache.bcel.generic;
import java.io.DataOutputStream;
import java.io.IOException;
import org.apache.bcel.classfile.ConstantUtf8;
import org.apache.bcel.classfile.ElementValue;
import org.apache.bcel.classfile.EnumElementValue;
public class EnumElementValueGen extends ElementValueGen
{
// For enum types, these two indices point to the type and value
private int typeIdx;
private int valueIdx;
/**
* This ctor assumes the constant pool already contains the right type and
* value - as indicated by typeIdx and valueIdx. This ctor is used for
* deserialization
*/
protected EnumElementValueGen(int typeIdx, int valueIdx,
ConstantPoolGen cpool)
{
super(ElementValueGen.ENUM_CONSTANT, cpool);
if (type != ENUM_CONSTANT)
throw new RuntimeException(
"Only element values of type enum can be built with this ctor - type specified: " + type);
this.typeIdx = typeIdx;
this.valueIdx = valueIdx;
}
/**
* Return immutable variant of this EnumElementValue
*/
@Override
public ElementValue getElementValue()
{
System.err.println("Duplicating value: " + getEnumTypeString() + ":"
+ getEnumValueString());
return new EnumElementValue(type, typeIdx, valueIdx, cpGen
.getConstantPool());
}
public EnumElementValueGen(ObjectType t, String value, ConstantPoolGen cpool)
{
super(ElementValueGen.ENUM_CONSTANT, cpool);
typeIdx = cpool.addUtf8(t.getSignature());// was addClass(t);
valueIdx = cpool.addUtf8(value);// was addString(value);
}
public EnumElementValueGen(EnumElementValue value, ConstantPoolGen cpool,
boolean copyPoolEntries)
{
super(ENUM_CONSTANT, cpool);
if (copyPoolEntries)
{
typeIdx = cpool.addUtf8(value.getEnumTypeString());// was
// addClass(value.getEnumTypeString());
valueIdx = cpool.addUtf8(value.getEnumValueString()); // was
// addString(value.getEnumValueString());
}
else
{
typeIdx = value.getTypeIndex();
valueIdx = value.getValueIndex();
}
}
@Override
public void dump(DataOutputStream dos) throws IOException
{
dos.writeByte(type); // u1 type of value (ENUM_CONSTANT == 'e')
dos.writeShort(typeIdx); // u2
dos.writeShort(valueIdx); // u2
}
@Override
public String stringifyValue()
{
ConstantUtf8 cu8 = (ConstantUtf8) getConstantPool().getConstant(
valueIdx);
return cu8.getBytes();
// ConstantString cu8 =
// (ConstantString)getConstantPool().getConstant(valueIdx);
// return
// ((ConstantUtf8)getConstantPool().getConstant(cu8.getStringIndex())).getBytes();
}
// BCELBUG: Should we need to call utility.signatureToString() on the output
// here?
public String getEnumTypeString()
{
// Constant cc = getConstantPool().getConstant(typeIdx);
// ConstantClass cu8 =
// (ConstantClass)getConstantPool().getConstant(typeIdx);
// return
// ((ConstantUtf8)getConstantPool().getConstant(cu8.getNameIndex())).getBytes();
return ((ConstantUtf8) getConstantPool().getConstant(typeIdx))
.getBytes();
// return Utility.signatureToString(cu8.getBytes());
}
public String getEnumValueString()
{
return ((ConstantUtf8) getConstantPool().getConstant(valueIdx))
.getBytes();
// ConstantString cu8 =
// (ConstantString)getConstantPool().getConstant(valueIdx);
// return
// ((ConstantUtf8)getConstantPool().getConstant(cu8.getStringIndex())).getBytes();
}
public int getValueIndex()
{
return valueIdx;
}
public int getTypeIndex()
{
return typeIdx;
}
}