public static ConstantPool ReadConstantPool(BytecodeReader reader, ushort constantPoolCount)
{
// TODO: check if long and double constants reading right
ConstantPool constantPool = new ConstantPool();
int a = 0;
var tagDictionary = new Dictionary <int, Action>();
tagDictionary.Add(1, () =>
{
ushort length = reader.ReadUShort();
String value = reader.ReadString(length);
constantPool.AddConstantUtf8(new ConstantUtf8(length, value));
});
tagDictionary.Add(3, () => constantPool.AddConstantInteger(reader.ReadInt()));
tagDictionary.Add(4, () => constantPool.AddConstantFloat(reader.ReadFloat()));
tagDictionary.Add(5, () => constantPool.AddConstantLong(reader.ReadLong()));
tagDictionary.Add(6, () => constantPool.AddConstantDouble(reader.ReadDouble()));
tagDictionary.Add(7, () => constantPool.AddConstantClass(new ConstantClass(reader.ReadUShort())));
tagDictionary.Add(8, () => constantPool.AddConstantString(new ConstantString(reader.ReadUShort())));
tagDictionary.Add(9, () => constantPool.AddConstantFieldRef(new ConstantFieldRef(reader.ReadUShort(), reader.ReadUShort())));
tagDictionary.Add(10, () => constantPool.AddConstantMethodRef(new ConstantMethodRef(reader.ReadUShort(), reader.ReadUShort())));
tagDictionary.Add(11, () => constantPool.AddConstantInterfaceMethodRef(new ConstantInterfaceMethodRef(reader.ReadUShort(), reader.ReadUShort())));
tagDictionary.Add(12, () => constantPool.AddConstantNameAndType(new ConstantNameAndType(reader.ReadUShort(), reader.ReadUShort())));
tagDictionary.Add(15, () => constantPool.AddConstantMethodHandle(new ConstantMethodHandle(reader.ReadByte(), reader.ReadUShort())));
tagDictionary.Add(16, () => constantPool.AddConstantMethodType(new ConstantMethodType(reader.ReadUShort())));
tagDictionary.Add(18, () => constantPool.AddConstantInvokeDynamic(new ConstantInvokeDynamic(reader.ReadUShort(), reader.ReadUShort())));
tagDictionary.Add(19, () => constantPool.AddConstantModule(new ConstantModule(reader.ReadUShort())));
tagDictionary.Add(20, () => constantPool.AddConstantPackage(new ConstantPackage(reader.ReadUShort())));
Action createConstant;
for (int i = 0; i < constantPoolCount; i++)
{
if (tagDictionary.TryGetValue(reader.ReadByte(), out createConstant))
{
createConstant.Invoke();
}
else
{
throw new KeyNotFoundException("Constant type not recognized");
}
}
return(constantPool);
}
public static Attributes ReadAttributes(BytecodeReader reader, ushort attributesCount)
{
Attributes attributes = new Attributes();
Dictionary <String, Action> attributeNameDictionary = new Dictionary <string, Action>();
attributeNameDictionary.Add("Code", () =>
{
ushort attributeNameIndex = reader.ReadUShort();
uint attributeLength = reader.ReadUInt();
ushort maxStack = reader.ReadUShort();
ushort maxLocals = reader.ReadUShort();
uint codeLength = reader.ReadUInt();
byte[] code = reader.ReadBytes(codeLength);
ushort exceptionTableLength = reader.ReadUShort();
byte[] exceptionTable = reader.ReadBytes((uint)exceptionTableLength * 8);
ushort codeAttributesCount = reader.ReadUShort();
Attributes codeAttributes = ReadAttributes(reader, codeAttributesCount);
attributes.AddAttributeCode(attributeNameIndex, attributeLength,
maxStack, maxLocals, codeLength, code, exceptionTableLength,
exceptionTable, attributesCount, attributes);
});
short attributeIndex = 0;
var attributesTable = new List <AttributeSuper>();
int curAttributeNameIndex;
while (attributesCount > attributeIndex)
{
curAttributeNameIndex = bytecode[index] * 0x100 + bytecode[index + 1];
switch (cp.getConstantUtf8(curAttributeNameIndex).Value)
{
case "Code":
attributesTable.Add(AttributeCode.Create(bytecode, cp));
attributeIndex++;
break;
case "ConstantValue":
// TODO: not skipping bytes
Console.WriteLine("ConstantValue attribute was created");
attributesTable.Add(AttributeSuper.Create(bytecode));
index += (int)attributesTable.Last().AttributeLength;
attributeIndex++;
break;
case "StackMapTable":
// TODO: not skipping bytes
Console.WriteLine("StackMapTable attribute was created");
attributesTable.Add(AttributeSuper.Create(bytecode));
index += (int)attributesTable.Last().AttributeLength;
attributeIndex++;
break;
case "BootstrapMethods":
// TODO: not skipping bytes
Console.WriteLine("BootstrapMethods attribute was created");
attributesTable.Add(AttributeSuper.Create(bytecode));
index += (int)attributesTable.Last().AttributeLength;
attributeIndex++;
break;
case "LineNumberTable":
attributesTable.Add(AttributeLineNumberTable.Create(bytecode, cp));
attributeIndex++;
break;
case "SourceFile":
attributesTable.Add(AttributeSourceFile.Create(bytecode, cp));
attributeIndex++;
break;
default:
attributeIndex++;
Console.WriteLine("no attribute found");
break;
}
}
return(new Attributes(attributesTable));
}
