void Write <T>([CanBeNull] T value, NpgsqlParameter param)
{
CheckReady();
if (_column == -1)
{
throw new InvalidOperationException("A row hasn't been started");
}
if (value == null || value is DBNull)
{
WriteNull();
return;
}
if (typeof(T) == typeof(object))
{
param.Value = value;
}
else
{
if (!(param is NpgsqlParameter <T> typedParam))
{
_params[_column] = typedParam = new NpgsqlParameter <T>();
typedParam.NpgsqlDbType = param.NpgsqlDbType;
}
typedParam.TypedValue = value;
}
param.ResolveHandler(_connector.TypeMapper);
param.ValidateAndGetLength();
param.LengthCache?.Rewind();
param.WriteWithLength(_buf, false);
param.LengthCache?.Clear();
_column++;
}
async Task Write <T>([AllowNull] T value, NpgsqlParameter param, bool async, CancellationToken cancellationToken = default)
{
CheckReady();
if (_column == -1)
{
throw new InvalidOperationException("A row hasn't been started");
}
if (value == null || value is DBNull)
{
await WriteNull(async, cancellationToken);
return;
}
try
{
if (typeof(T) == typeof(object))
{
param.Value = value;
}
else
{
if (param is not NpgsqlParameter <T> typedParam)
{
_params[_column] = typedParam = new NpgsqlParameter <T>();
typedParam.NpgsqlDbType = param.NpgsqlDbType;
param = typedParam;
}
typedParam.TypedValue = value;
}
param.ResolveHandler(_connector.TypeMapper);
param.ValidateAndGetLength();
param.LengthCache?.Rewind();
await param.WriteWithLength(_buf, async, cancellationToken);
param.LengthCache?.Clear();
_column++;
}
catch
{
// An exception here will have already broken the connection etc.
Cleanup();
throw;
}
}