public override void Write(Utf8JsonWriter writer, TMessage value, JsonSerializerOptions options)
{
int nanos;
long seconds;
if (value is Duration duration)
{
nanos = duration.Nanos;
seconds = duration.Seconds;
}
else
{
nanos = (int)value.Descriptor.Fields[Duration.NanosFieldNumber].Accessor.GetValue(value);
seconds = (long)value.Descriptor.Fields[Duration.SecondsFieldNumber].Accessor.GetValue(value);
}
var text = Legacy.GetDurationText(nanos, seconds);
writer.WriteStringValue(text);
}