package org.apache.tomcat.util.bcel.classfile;
import java.io.DataInput;
import java.io.IOException;
public abstract class ElementValue
{
private final int type;
private final ConstantPool cpool;
ElementValue(final int type, final ConstantPool cpool) {
this.type = type;
this.cpool = cpool;
}
public abstract String stringifyValue();
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:
input.readUnsignedShort();
return new EnumElementValue(ENUM_CONSTANT, input.readUnsignedShort(), cpool);
case CLASS:
return new ClassElementValue(CLASS, input.readUnsignedShort(), cpool);
case ANNOTATION:
return new AnnotationElementValue(ANNOTATION, new AnnotationEntry(input, cpool), 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 IllegalArgumentException(
"Unexpected element value kind in annotation: " + type);
}
}
final ConstantPool getConstantPool() {
return cpool;
}
final int getType() {
return type;
}
}