private static bool TryReadDurationFast(ref ProtoReader.State state, ref Duration value)
{
int offset = state.OffsetInCurrent;
var span = state.Span;
int prefixLength = state.ParseVarintUInt32(span, offset, out var len);
offset += prefixLength;
if (len == 0)
{
return(true);
}
if ((prefixLength + len) > state.RemainingInCurrent)
{
return(false); // don't have entire submessage
}
if (span[offset] != (1 << 3))
{
return(false); // expected field 1
}
var msgOffset = 1 + ProtoReader.State.TryParseUInt64Varint(span, 1 + offset, out var seconds);
var nanos = value.Nanoseconds;
if (msgOffset < len)
{
if (span[msgOffset++ + offset] != (2 << 3))
{
return(false); // expected field 2
}
msgOffset += ProtoReader.State.TryParseUInt64Varint(span, msgOffset + offset, out var tmp);
nanos = (int)(long)tmp;
}
if (msgOffset != len)
{
return(false); // expected no more fields
}
state.Skip(prefixLength + (int)len);
state.Advance(prefixLength + len);
value = new Duration((long)seconds, nanos);
return(true);
}
