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Tag Archive for continuation

How is one expected to use open sockets with [delimited] continuations?

I’m trying to figure out how an open socket or file handle should interact with continuations. Searching has revealed that dynamic-wind is probably part of the solution, but I’m more interested in the methodology rather than the implementation, and all I could find is how to implement it under various conditions.

What is an example of a continuation not implemented as a procedure?

An interesting discussion about the distinction between callbacks and continuations over on SO has prompted this question. By definition, a continuation is an abstract representation of the logic needed to complete a computation. In most languages this manifests as a one argument procedure to which you pass whatever value needs continued processing.

What is an example of a continuation not implemented as a procedure?

An interesting discussion about the distinction between callbacks and continuations over on SO has prompted this question. By definition, a continuation is an abstract representation of the logic needed to complete a computation. In most languages this manifests as a one argument procedure to which you pass whatever value needs continued processing.

What is an example of a continuation not implemented as a procedure?

An interesting discussion about the distinction between callbacks and continuations over on SO has prompted this question. By definition, a continuation is an abstract representation of the logic needed to complete a computation. In most languages this manifests as a one argument procedure to which you pass whatever value needs continued processing.

What is an example of a continuation not implemented as a procedure?

An interesting discussion about the distinction between callbacks and continuations over on SO has prompted this question. By definition, a continuation is an abstract representation of the logic needed to complete a computation. In most languages this manifests as a one argument procedure to which you pass whatever value needs continued processing.

What is an example of a continuation not implemented as a procedure?

An interesting discussion about the distinction between callbacks and continuations over on SO has prompted this question. By definition, a continuation is an abstract representation of the logic needed to complete a computation. In most languages this manifests as a one argument procedure to which you pass whatever value needs continued processing.

What is an example of a continuation not implemented as a procedure?

An interesting discussion about the distinction between callbacks and continuations over on SO has prompted this question. By definition, a continuation is an abstract representation of the logic needed to complete a computation. In most languages this manifests as a one argument procedure to which you pass whatever value needs continued processing.

Are first-class continuations useful in modern object-oriented programming languages?

Continuations are extremely useful in functional programming languages (e.g. the Cont monad in Haskell) because they allow a simple and regular notation for imperative-style code. They’re also useful in some older imperative languages because they can be used to implement missing language features (e.g. exceptions, coroutines, green threads). But for a modern object-oriented language with support built in for these features, what arguments would there be for also adding support for first-class continuations (whether the more modern delimited style reset and shift or scheme-like call-with-current-continuation)?

Are first-class continuations useful in modern object-oriented programming languages?

Continuations are extremely useful in functional programming languages (e.g. the Cont monad in Haskell) because they allow a simple and regular notation for imperative-style code. They’re also useful in some older imperative languages because they can be used to implement missing language features (e.g. exceptions, coroutines, green threads). But for a modern object-oriented language with support built in for these features, what arguments would there be for also adding support for first-class continuations (whether the more modern delimited style reset and shift or scheme-like call-with-current-continuation)?