It looks quite nice. An alternative solution, which requires a modified compiler but avoids the need for a context and errors channel, are the channels used by

It looks quite nice. An alternative solution, which requires a modified compiler but avoids the need for a context and errors channel, are the channels used by Clive: https://lsub.org/export/golsub.html https://lsub.org/export/golsub.html I'd really like these channels (or some modified version of them) made it into Go2.