Add stream::from_fn #1842
Closed
Add stream::from_fn #1842
Conversation
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
taiki-e
commented
Aug 30, 2019
| /// | ||
| /// // Check to see if we've finished counting or not. | ||
| /// if count < 6 { | ||
| /// future::ready(Some(count)) |
There was a problem hiding this comment.
Unfortunately, probably the equivalent of this cannot be written by async/await at this time (from_fn is not very compatible with async / await at this time.).
|
As I mentioned in #1609, I think that this actually just isn't very useful yet until we get proper support for async closures that can mutate their captures. Is there a place where you wanted to use this and found it better than the existing |
|
I agreed. As far as I know, there is nothing better than unfold at this time. We should focus on functionality, not appearance. |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
Closes #1609