Add Generator-based coroutine() function
#12
Merged
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
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Outdated suggestions cannot be applied.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.
This changeset adds a Generator-based
coroutine()function for the upcoming v3 release.The API integrates nicely with existing Promise-based APIs and can be used to execute a Generator-based coroutine to "await" promises. Using Generator-based coroutines is an alternative to directly using the underlying promise APIs. For many use cases, this makes using promise-based APIs much simpler, as it resembles a synchronous code flow more closely.
A somewhat similar solution has been provided by @recoilphp for years already (big shout out!). After discussing this both internally and with Recoil (hey @jmalloc 👋), I think we all agree that having this as a first-class citizen in the ReactPHP ecosystem would be a fantastic opportunity!
I hear there are more news to follow soon with the imminent PHP 8.1 release, but in either case I still think this function provides a very nice integration point and also migration path towards the future of using promises! (More on that in a follow-up PR 🤫)
Builds on top of #11