public static void SkipLastField(ref ReadOnlySpan <byte> buffer, ref ParserInternalState state)
{
if (state.lastTag == 0)
{
throw new InvalidOperationException("SkipLastField cannot be called at the end of a stream");
}
switch (WireFormat.GetTagWireType(state.lastTag))
{
case WireFormat.WireType.StartGroup:
SkipGroup(ref buffer, ref state, state.lastTag);
break;
case WireFormat.WireType.EndGroup:
throw new InvalidProtocolBufferException(
"SkipLastField called on an end-group tag, indicating that the corresponding start-group was missing");
case WireFormat.WireType.Fixed32:
ParsingPrimitives.ParseRawLittleEndian32(ref buffer, ref state);
break;
case WireFormat.WireType.Fixed64:
ParsingPrimitives.ParseRawLittleEndian64(ref buffer, ref state);
break;
case WireFormat.WireType.LengthDelimited:
var length = ParsingPrimitives.ParseLength(ref buffer, ref state);
ParsingPrimitives.SkipRawBytes(ref buffer, ref state, length);
break;
case WireFormat.WireType.Varint:
ParsingPrimitives.ParseRawVarint32(ref buffer, ref state);
break;
}
}
/// <summary>
/// Reads a 32-bit little-endian integer from the stream.
/// </summary>
internal uint ReadRawLittleEndian32()
{
var span = new ReadOnlySpan <byte>(buffer);
return(ParsingPrimitives.ParseRawLittleEndian32(ref span, ref state));
}
public int ReadSFixed32()
{
return((int)ParsingPrimitives.ParseRawLittleEndian32(ref buffer, ref state));
}