Writing a Lisp: Continuations

Re:Writing a Lisp: Continuations by bbcbasic on Thursday May 18, 2017 @10:09PM (#14372557)

If anyone can feedback on why my comment is wrong I'd appreciate it.

I know we're not meant to comment on downvoting but I want to uncover the error in my understanding of this subject because at least 3 people downvoted but there is no reply yet??

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Re:Writing a Lisp: Continuations by AstralStorm on Thursday May 18, 2017 @10:35PM (#14372658)

Async/await does not allow you to suspend a computation and then resume it, and it is not easy to chain.

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Re:Writing a Lisp: Continuations by somethingsimple on Thursday May 18, 2017 @10:45PM (#14372690)

If you implement your own awaiter with INotifyCompletion [1], you get the continuation as an Action that you can invoke as you will. TBH I haven't done it, but I believe you could use that to implement something akin to call/cc.

[1] https://msdn.microsoft.com/en-us/library/system.runtime.comp...

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Re:Writing a Lisp: Continuations by bbcbasic on Thursday May 18, 2017 @10:40PM (#14372672)

Thanks.

I took continuation to include cases where you respond to asynchronous call backs while the program is still executing, in which case suspension isn't needed.

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