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/*
* 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.classfile;
import java.io.DataInput;
import java.io.DataOutputStream;
import java.io.IOException;
/**
* @version $Id: ElementValue
* @since 6.0
*/
public abstract class ElementValue
{
/**
* @deprecated (since 6.0) will be made private and final; do not access directly, use getter
*/
@java.lang.Deprecated
protected int type; // TODO should be final
/**
* @deprecated (since 6.0) will be made private and final; do not access directly, use getter
*/
@java.lang.Deprecated
protected ConstantPool cpool; // TODO should be final
@Override
public String toString()
{
return stringifyValue();
}
protected ElementValue(final int type, final ConstantPool cpool)
{
this.type = type;
this.cpool = cpool;
}
public int getElementValueType()
{
return type;
}
public abstract String stringifyValue();
public abstract void dump(DataOutputStream dos) throws IOException;
public static final byte STRING = 's';
public static final byte ENUM_CONSTANT = 'e';
public static final byte CLASS = 'c';
public static final byte ANNOTATION = '@';
public static final byte ARRAY = '[';
public static final byte PRIMITIVE_INT = 'I';
public static final byte PRIMITIVE_BYTE = 'B';
public static final byte PRIMITIVE_CHAR = 'C';
public static final byte PRIMITIVE_DOUBLE = 'D';
public static final byte PRIMITIVE_FLOAT = 'F';
public static final byte PRIMITIVE_LONG = 'J';
public static final byte PRIMITIVE_SHORT = 'S';
public static final byte PRIMITIVE_BOOLEAN = 'Z';
public static ElementValue readElementValue(final DataInput input, final ConstantPool cpool) throws IOException
{
final byte type = input.readByte();
switch (type)
{
case PRIMITIVE_BYTE:
case PRIMITIVE_CHAR:
case PRIMITIVE_DOUBLE:
case PRIMITIVE_FLOAT:
case PRIMITIVE_INT:
case PRIMITIVE_LONG:
case PRIMITIVE_SHORT:
case PRIMITIVE_BOOLEAN:
case STRING:
return new SimpleElementValue(type, input.readUnsignedShort(), cpool);
case ENUM_CONSTANT:
return new EnumElementValue(ENUM_CONSTANT, input.readUnsignedShort(), input.readUnsignedShort(), cpool);
case CLASS:
return new ClassElementValue(CLASS, input.readUnsignedShort(), cpool);
case ANNOTATION:
// TODO isRuntimeVisible
return new AnnotationElementValue(ANNOTATION, AnnotationEntry.read(input, cpool, false), cpool);
case ARRAY:
final int numArrayVals = input.readUnsignedShort();
final ElementValue[] evalues = new ElementValue[numArrayVals];
for (int j = 0; j < numArrayVals; j++)
{
evalues[j] = ElementValue.readElementValue(input, cpool);
}
return new ArrayElementValue(ARRAY, evalues, cpool);
default:
throw new RuntimeException("Unexpected element value kind in annotation: " + type);
}
}
/** @since 6.0 */
final ConstantPool getConstantPool() {
return cpool;
}
/** @since 6.0 */
final int getType() {
return type;
}
public String toShortString()
{
return stringifyValue();
}
}
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