On Sun, Mar 07, 2021 at 03:25:16AM +0000, Alexandre Esteves wrote:
replay :: MonadCont m => m (m a) replay = callCC $ pure . fix
Using this in a do-notation block allows one to bind a name to the sub-block that starts immediately after. I reached for continuations to try to get this behavior for use with recursive flows without disrupting the reading of the main forward flow and found how to do it in https://jsdw.me/posts/haskell-cont-monad/ under the name "goto".
While "goto" is as familiar as a name can be, I feel "replay" more accurately conveys, that you can only 'go back', by stating what actually is happening - that a sub-block we're currently evaluating is replayed from its beginning.
Looks like a "label" more than a "goto" to me. Would "label" be a good name?