public int ReadInt32()
{
if (CurrentType != AmqpToken.Array || _itemType != AmqpType.Int)
{
throw new InvalidOperationException();
}
if (_currentLength < sizeof(int))
{
throw new InvalidOperationException();
}
int value = BinaryPrimitives.ReadInt32BigEndian(_buffer.Slice(_current));
_current += sizeof(int);
_currentLength -= sizeof(int);
if (_currentLength == 0)
{
CurrentType = AmqpToken.ArrayEnd;
}
return(value);
}
public AmqpToken MoveNext()
{
_buffer = _buffer.Slice(_next);
_next = 0;
if (_buffer.Length == 0)
{
return(AmqpToken.EndOfData);
}
var constructor = (AmqpType)_buffer[0];
switch (constructor)
{
case AmqpType.Descriptor:
_next++;
CurrentType = AmqpToken.Descriptor;
break;
case AmqpType.Binary8:
if (_buffer.Length == 1)
{
return(AmqpToken.EndOfData);
}
_currentLength = _buffer[1];
_current = 2;
_next += _currentLength + _current;
CurrentType = AmqpToken.Binary;
break;
case AmqpType.Binary32:
_currentLength = BinaryPrimitives.ReadInt32BigEndian(_buffer.Slice(1));
_current = 5;
_next += _currentLength + _current;
CurrentType = AmqpToken.Binary;
break;
case AmqpType.String8:
_current = 2;
_currentLength = _buffer[1];
_next += _currentLength + _current;
CurrentType = AmqpToken.String;
break;
case AmqpType.String32:
_current = 5;
_currentLength = BinaryPrimitives.ReadInt32BigEndian(_buffer.Slice(1));
_next += _currentLength + _current;
CurrentType = AmqpToken.String;
break;
case AmqpType.Array8:
{
if (_buffer.Length < 4)
{
return(AmqpToken.EndOfData);
}
var itemSize = _buffer[1];
_currentLength = _buffer[2];
_itemType = (AmqpType)_buffer[3];
_current = 4;
_next = _current + (_currentLength * itemSize);
CurrentType = AmqpToken.Array;
break;
}
case AmqpType.Array32:
{
if (_buffer.Length < 10)
{
return(AmqpToken.EndOfData);
}
var dataSize = BinaryPrimitives.ReadInt32BigEndian(_buffer.Slice(1)) - 5;
_currentLength = BinaryPrimitives.ReadInt32BigEndian(_buffer.Slice(5)) * sizeof(int);
_itemType = (AmqpType)_buffer[9];
_current = 10;
_next = _current + dataSize;
CurrentType = AmqpToken.Array;
break;
}
default:
throw new NotImplementedException();
}
return(CurrentType);
}