internal static int GetArraySize(object o, Type objecttype, ArraySizeAttribute arr)
{
int size = arr.size;
if (!string.IsNullOrEmpty(arr.getSize))
{
if (arr.getSize.Contains("()"))
{
// its a method
var meth = objecttype.GetMethod(arr.getSize.Replace("()", ""));
size = int.Parse(meth.Invoke(o, null).ToString());
}
else
{
// its a field or property
var fld = objecttype.GetField(arr.getSize);
var prop = objecttype.GetProperty(arr.getSize);
if (fld != null)
{
size = int.Parse(fld.GetValue(o).ToString());
}
else if (prop != null)
{
size = int.Parse(prop.GetValue(o, null).ToString());
}
else
{
throw new Exception("Field or property called " + arr.getSize + " not found!");
}
}
}
return(size);
}
private void ReadIntoField(object o, FieldInfo fi)
{
object[] lil = fi.GetCustomAttributes(typeof(LittleEndianAttribute), false);
object[] big = fi.GetCustomAttributes(typeof(BigEndianAttribute), false);
object[] array = fi.GetCustomAttributes(typeof(ArraySizeAttribute), false);
bool littleendian = big.Length == 0;
Type objecttype = o.GetType();
object field = fi.GetValue(o);
if (fi.FieldType.IsArray)
{
ArraySizeAttribute arr = (ArraySizeAttribute)array[0];
int size = GetArraySize(o, objecttype, arr);
field = Array.CreateInstance(fi.FieldType.GetElementType(), size);
Read(ref field, littleendian);
}
else
{
if (fi.FieldType == typeof(string))
{
field = "";
}
else if (field == null)
{
field = Activator.CreateInstance(fi.FieldType);
}
Read(ref field, littleendian);
}
fi.SetValue(o, field);
}
void Write(object o, bool isLittleEndian, int arraysize)
{
BinaryWriter m_stream = (BinaryWriter)this.m_stream;
StructLayoutAttribute structlayout = o.GetType().StructLayoutAttribute;
EndianBitConverter b;
if (!isLittleEndian)
{
b = new BigEndianBitConverter();
}
else
{
b = new LittleEndianBitConverter();
}
if (o.GetType() == typeof(int))
{
m_stream.Write(b.GetBytes((int)o));
}
else if (o.GetType() == typeof(uint))
{
m_stream.Write(b.GetBytes((uint)o));
}
else if (o.GetType() == typeof(short))
{
m_stream.Write(b.GetBytes((short)o));
}
else if (o.GetType() == typeof(ushort))
{
m_stream.Write(b.GetBytes((ushort)o));
}
else if (o.GetType() == typeof(long))
{
m_stream.Write(b.GetBytes((long)o));
}
else if (o.GetType() == typeof(ulong))
{
m_stream.Write(b.GetBytes((ulong)o));
}
else if (o.GetType() == typeof(float))
{
m_stream.Write(b.GetBytes((float)o));
}
else if (o.GetType() == typeof(double))
{
m_stream.Write(b.GetBytes((double)o));
}
else if (o.GetType().IsEnum)
{
m_stream.Write(b.GetBytes((int)o));
}
else if (o.GetType() == typeof(byte))
{
m_stream.Write((byte)o);
}
else if (o.GetType().IsArray)
{
Array arr = (Array)o;
for (int i = 0; i < arraysize; i++)
{
Write(arr.GetValue(i), isLittleEndian, 0);
}
}
else if (structlayout != null)
{
Type objecttype = o.GetType();
FieldInfo[] fis = objecttype.GetFields();
// Sort the fields into the order they were specified
Dictionary <string, IntPtr> fieldorder = new Dictionary <string, IntPtr>();
foreach (FieldInfo fi in fis)
{
fieldorder[fi.Name] = Marshal.OffsetOf(objecttype, fi.Name);
}
Array.Sort(fis, (x, y) => fieldorder[x.Name].ToInt32() - fieldorder[y.Name].ToInt32());
List <object> towrite = new List <object>();
foreach (FieldInfo fi in fis)
{
object[] lil = fi.GetCustomAttributes(typeof(LittleEndianAttribute), false);
object[] big = fi.GetCustomAttributes(typeof(BigEndianAttribute), false);
object[] array = fi.GetCustomAttributes(typeof(ArraySizeAttribute), false);
InternalUseAttribute[] internalUse = (InternalUseAttribute[])fi.GetCustomAttributes(typeof(InternalUseAttribute), false);
if (internalUse.Length > 0)
{
continue;
}
bool littleendian = big.Length == 0;
object field = fi.GetValue(o);
if (array.Length > 0 && fi.FieldType.IsArray)
{
ArraySizeAttribute arr = (ArraySizeAttribute)array[0];
int size = FormattedReader.GetArraySize(o, objecttype, arr);
if (field == null)
{
field = Array.CreateInstance(fi.FieldType.GetElementType(), size);
}
Write(field, littleendian, size);
}
else if (fi.FieldType.IsEnum)
{
Write((int)field, littleendian, 0);
}
else
{
Write(field, littleendian, 0);
}
}
}
else
{
throw new Exception("I don't know how to write this object:" + o.GetType().Name + " Please include the [StructLayout] attribute");
}
}
