He discusses error handling options in the full proposal here: https://gist.github.com/lattner/429b9070918248274f25b714dcfc7619#make-async-be-a-subtype-of-throw

He discusses error handling options in the full proposal here: https://gist.github.com/lattner/429b9070918248274f25b714dcfc7619#make-async-be-a-subtype-of-throws-instead-of-orthogonal-to-it https://gist.github.com/lattner/429b9070918248274f25b714dcfc...