public static MemberInfo[] ReadMembers(ClassReader reader, ConstantPool constantPool)
{
var count = reader.ReadU2();
var members = new MemberInfo[count];
for (var i = 0; i < members.Length; i++)
{
members[i] = ReadMemberInfo(reader, constantPool);
}
return(members);
}
public static MemberInfo ReadMemberInfo(ClassReader reader, ConstantPool pool)
{
var member = new MemberInfo()
{
AccessFlags = reader.ReadU2(),
NameIndex = reader.ReadU2(),
DescriptorIndex = reader.ReadU2(),
Attributes = reader.ReadAttributes(pool)
};
member.Name = pool.GetUtf8String(member.NameIndex);
member.Descriptor = pool.GetUtf8String(member.DescriptorIndex);
return(member);
}
public static ClassFile Parse(ClassReader reader)
{
var magic = reader.ReadU4();
if (magic != Constants.Magic)
{
throw new Exception("java.lang.ClassFormatError:magic");
}
ushort minorVersion = reader.ReadU2(), majorVersion = reader.ReadU2();
switch (majorVersion)
{
case Constants.JDK2_MajorVersion:
case Constants.JDK3_MajorVersion:
case Constants.JDK4_MajorVersion:
case Constants.JDK5_MajorVersion:
case Constants.JDK6_MajorVersion:
case Constants.JDK7_MajorVersion:
case Constants.JDK8_MajorVersion:
if (minorVersion != 0)
{
throw new Exception("java.lang.UnsupportedClassVersionError!");
}
break;
default:
throw new Exception("java.lang.UnsupportedClassVersionError!");
}
var pool = new ConstantPool(reader);
var classFile = new ClassFile
{
MinorVersion = minorVersion,
MajorVersion = majorVersion,
ConstantPool = pool,
AccessFlags = reader.ReadU2(),
ThisClass = reader.ReadU2(),
SuperClass = reader.ReadU2(),
Interfaces = reader.ReadU2S()
};
classFile.ClassName = pool.GetClassName(classFile.ThisClass);
classFile.SuperClassName = pool.GetClassName(classFile.SuperClass);
classFile.Fields = MemberInfo.ReadMembers(reader, classFile.ConstantPool);
classFile.Methods = MemberInfo.ReadMembers(reader, classFile.ConstantPool);
classFile.Attributes = reader.ReadAttributes(classFile.ConstantPool);
classFile.InterfaceNames = classFile.Interfaces.Select(index => classFile.ConstantPool.GetClassName(index)).ToArray();
return(classFile);
}