private static List <T> GetList <T>(PacketReader reader, IPacketConverter converter)
{
var itm = reader.GetList();
var len = itm.Count;
if (len < 1)
{
return(new List <T>());
}
var lst = new List <T>(len);
var gen = converter as IPacketConverter <T>;
try
{
if (gen != null)
{
for (int i = 0; i < len; i++)
{
lst.Add(gen.GetValue(itm[i].element));
}
}
else
{
for (int i = 0; i < len; i++)
{
lst.Add((T)converter.GetValue(itm[i].element));
}
}
}
catch (Exception ex) when(PacketException.WrapFilter(ex))
{
throw PacketException.ConvertError(ex);
}
return(lst);
}
private static T[] GetArray <T>(PacketReader reader, IPacketConverter converter)
{
var itm = reader.GetList();
var len = itm.Count;
if (len < 1)
{
return(new T[0]);
}
var arr = new T[len];
var gen = converter as IPacketConverter <T>;
try
{
if (gen != null)
{
for (int i = 0; i < len; i++)
{
arr[i] = gen.GetValue(itm[i].element);
}
}
else
{
for (int i = 0; i < len; i++)
{
arr[i] = (T)converter.GetValue(itm[i].element);
}
}
}
catch (Exception ex) when(PacketException.WrapFilter(ex))
{
throw PacketException.ConvertError(ex);
}
return(arr);
}
internal static T GetValueWrap <T>(this IPacketConverter <T> converter, Element element)
{
try
{
return(converter.GetValue(element.buffer, element.offset, element.length));
}
catch (Exception ex) when(PacketException.WrapFilter(ex))
{
throw PacketException.ConvertError(ex);
}
}
internal static T GetValueWrap <T>(this IPacketConverter <T> converter, byte[] buffer, int offset, int length)
{
try
{
return(converter.GetValue(buffer, offset, length));
}
catch (Exception ex) when(PacketException.WrapFilter(ex))
{
throw PacketException.ConvertError(ex);
}
}
internal static object GetValueWrap(this IPacketConverter converter, byte[] buffer, int offset, int length, bool check = false)
{
try
{
if (check && converter.Length > length)
{
throw PacketException.Overflow();
}
return(converter.GetValue(buffer, offset, length));
}
catch (Exception ex) when(PacketException.WrapFilter(ex))
{
throw PacketException.ConvertError(ex);
}
}
internal List <T> ToList <T>(IPacketConverter converter)
{
if (length < 1)
{
return(new List <T>());
}
if (typeof(T) == typeof(byte))
{
return(new List <T>((T[])GetByteArray()));
}
else if (typeof(T) == typeof(sbyte))
{
return(new List <T>((T[])GetSByteArray()));
}
var def = converter.Length;
var sum = Math.DivRem(length, def, out var rem);
if (rem != 0)
{
throw PacketException.Overflow();
}
var lst = new List <T>(sum);
var gen = converter as IPacketConverter <T>;
try
{
if (gen != null)
{
for (int idx = 0; idx < sum; idx++)
{
lst.Add(gen.GetValue(buffer, offset + idx * def, def));
}
}
else
{
for (int idx = 0; idx < sum; idx++)
{
lst.Add((T)converter.GetValue(buffer, offset + idx * def, def));
}
}
}
catch (Exception ex) when(PacketException.WrapFilter(ex))
{
throw PacketException.ConvertError(ex);
}
return(lst);
}
internal static byte[] GetBytesWrap <T>(this IPacketConverter <T> converter, T value)
{
try
{
var buf = converter.GetBytes(value);
if (buf == null)
{
buf = s_empty_bytes;
}
var len = converter.Length;
if (len > 0 && len != buf.Length)
{
throw PacketException.ConvertMismatch(len);
}
return(buf);
}
catch (Exception ex) when(PacketException.WrapFilter(ex))
{
throw PacketException.ConvertError(ex);
}
}
internal void ToDictionary <TK, TV>(IPacketConverter indexConverter, IPacketConverter elementConverter, DictionaryAbstract <TK, TV> dictionary)
{
if (length == 0)
{
return;
}
var keygen = indexConverter as IPacketConverter <TK>;
var valgen = elementConverter as IPacketConverter <TV>;
var keylen = indexConverter.Length;
var vallen = elementConverter.Length;
var max = Max;
var idx = offset;
var len = 0;
try
{
while (true)
{
var sub = max - idx;
if (sub == 0)
{
break;
}
if (keylen > 0)
{
if (sub < keylen)
{
goto fail;
}
else
{
len = keylen;
}
}
else if (buffer.MoveNext(max, ref idx, out len) == false)
{
goto fail;
}
var key = (keygen != null ? keygen.GetValue(buffer, idx, len) : (TK)indexConverter.GetValue(buffer, idx, len));
idx += len;
sub = max - idx;
if (vallen > 0)
{
if (sub < vallen)
{
goto fail;
}
else
{
len = vallen;
}
}
else if (buffer.MoveNext(max, ref idx, out len) == false)
{
goto fail;
}
var val = (valgen != null ? valgen.GetValue(buffer, idx, len) : (TV)elementConverter.GetValue(buffer, idx, len));
idx += len;
dictionary.Add(key, val);
}
}
catch (Exception ex) when(PacketException.WrapFilter(ex))
{
throw PacketException.ConvertError(ex);
}
return;
fail:
throw PacketException.Overflow();
}
