Use an optional isolated parameter to this new `next(_:)` overload to
keep it on the same actor as the caller, and pass `#isolation` when
desugaring the async for..in loop. This keeps async iteration loops on
the same actor, allowing non-Sendable values to be used with many
async sequences.
- Revise '// Prints' comments style like the other stdlib files
- Remove verbose string interpolations and extra spaces
- Remove some unneeded parentheses
- Replace the majority of ' : ' with ': '
- Fix wrong indentation
- Keep files with a single empty line at the end
* Audit and correct AsyncSequence Sendability
* Annotate availability on Sendable conformances for AsyncSequences
* Fix typo of Sendable.Iterator
* Correct tests to use sendable builders
* Add @preconcurrency annotations and fixup one remaining missing @Sendable case
* Move preconcurrency to correct syntactical position
* Use unchecked Sendable conditional conformance instead of marking all internals as preconcurrency and sendable
* Use unchecked Sendable conditional conformance instead of marking all internals as preconcurrency and sendable for dropWhile
* claim ABI changes for marking of @preconcurrency as expected
The concurrency runtime now deploys back to macOS 10.15, iOS 13.0, watchOS 6.0, tvOS 13.0, which corresponds to the 5.1 release of the stdlib.
Adjust macro usages accordingly.
* First draft docs for iterator, sequence type.
Also drop(while:), to get a feel for the AsyncSequence->AsyncSequence cases.
* Source docs for contains and reduce.
* Docs for methods in AsyncSequence.
This covers all the methods that return a single value. Still working on the extension methods that return new sequences.
* Early source docs for dropFirst(_:) and its type
* Correct doc format for dropFirst(_:).
* Prefix, plus some fixes.
* Docs for prefix(while:).
* Apply Philippe's snippet fixes.
* First draft docs on the map sequences.
Plus miscellaneous fixes throughout.
* Show result of flatMap example.
* More explicit cancellation guidance.
* Convert snippets to trailing closures.
* Correct misplaced doc comments.
* Apply suggestions from code review
Co-authored-by: Philippe Hausler <phausler@apple.com>
* Apply editorial feedback.
* Apply additional editorial feedback.
* Apply suggestions from code review
Co-authored-by: bjlanier <blanier@apple.com>
* Apply further editorial feedback.
Co-authored-by: Chris Adamson <cadamson@apple.com>
Co-authored-by: Philippe Hausler <phausler@apple.com>
Co-authored-by: bjlanier <blanier@apple.com>
This allows programs to target older OSes while using Concurrency behind an availability check. When targeting older OSes, the symbols are weak-linked and the compiler will require the use of Concurrency features to be guarded by an availability check.
rdar://75850003
* Implementations for operators and async functions on AsyncSequence per SE-0298
* Add trailing new lines to AsyncSequence adopter files
* Remove extra // from preambles
* Transition sequence properties and sequence initializers to internal
* Rename Upstream to Base
* Rename "Failable" asynchronous sequences to "Throwing"
* Make iteration consistent with closure lifetimes and track failure via state
* Use for await syntax for async function extensions on AsyncSequence
* Work-around rethrows calculations being incorrect for conformance + closure rethrowing
* Update testing names to reflect Throwing versus Failable
* Incorperate runAsyncAndBlock into the test function for suite calls
* Remove @frozen from AsyncSequence operators
* Back out reduce family functions for now due to IRGen bug
* Additional corrections for throwing cases and fix up potential linux crasher
* Add a upstream and throwing tests and correct flatMap's throwing behavior
* Unify parameter names to count
* Add a more helpful precondition on prefix
* Add tests for throwing cases of non closure async functions on AsyncSequence
* Correct missing count transition in dropFirst
* Correct missing , in assertion
* [NFC] add commentary on optimization in dropFirst on dropFirst
* Disable collect tests for non macOS platforms for now
* Disable all async sequence tests for non macOS platforms for now
