Mark Task.wait() noasync and provide Task.get()#668
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dnadoba
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Feb 13, 2023
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You need to generate linux tests, otherwise LGTM. |
ktoso
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Feb 13, 2023
| /// - throws: The error value of the `EventLoopFuture` if it errors. | ||
| /// - returns: The value of ``futureResult`` when it completes. | ||
| /// - throws: The error value of ``futureResult`` if it errors. | ||
| @available(*, noasync, message: "wait() can block indefinitely, prefer get()", renamed: "get()") |
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You should be able to just #if around the available attribute and avoid the duplicate impl, if you wanted to
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This is a Swift 5.8 feature: https://github.com/apple/swift-evolution/blob/main/proposals/0367-conditional-attributes.md
Motivation Task.wait() is a convenience method to avoid needing to wait for the response future. This has had the effect of "laundering" a noasync warning from EventLoopFuture.wait(), hiding it within a purely sync call that may itself be used in an async context. We should discourage using these and prefer using .get() instead. Modifications Mark Task.wait() noasync. Add Task.get() for backward compatibility. Result Safer migration to Swift concurrency
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Motivation
Task.wait() is a convenience method to avoid needing to wait for the response future. This has had the effect of "laundering" a noasync warning from EventLoopFuture.wait(), hiding it within a purely sync call that may itself be used in an async context.
We should discourage using these and prefer using .get() instead.
Modifications
Mark Task.wait() noasync.
Add Task.get() for backward compatibility.
Result
Safer migration to Swift concurrency