Missing APIs in CoreLibs Foundation

[0xTim]

This is a top level issue to collect all the issues relating to missing APIs and behaviour differences in Foundation on non-Apple platforms

• ListFormatStyle missing #4596
• [SR-15187] URLSession missing async APIs in Swift 5.5 #3205
• ISO8601Format(_:) not available #4618
• [SR-14247] ListFormatter missing #4223
• [SR-14248] RelativeDateTimeFormatter missing #4222
• [SR-14908] Implement func copy() in subclasses of Formatter. #3215
• [SR-14909] Implement ByteCountFormatter.copy() #3214
• [SR-14910] Implement DateComponentsFormatter.copy #3213
• [SR-14911] Implement DateIntervalFormatter.copy #3212
• [SR-14912] Implement MeasurementFormatter.copy #3211
• [SR-14914] Implement PersonNameComponentsFormatter.copy #3209
• Missing URL APIs #4623
• DateFormatter is not thread safe #3166
• Date.FormatStyle and DateStyle and TimeStyle not implemented #4646
• DateComponentsFormatter unavailable swift-foundation#716

[mickeyl]

Great. This list is bound to grow… here's some more to add:

• https://bugs.swift.org/browse/SR-14920 for which a great pull request exists that is blocked by someone reviewing.
• [SR-15282] Using an actor with NSObject conformance on Linux #3200
• [SR-14815] Regression (Linux): NotificationCenter silently failing since 5.4.1 #3218
• [SR-15059] JSON5 support missing from open-source Swift #3951

Thanks!

[tomerd]

cc @parkera @iCharlesHu

[0xTim]

It also looks like none of the Sendable annotations have been ported over

[mickeyl]

And a fresh one: Linux: Foundation.Thread subclass comparison compilation error

[fumoboy007]

• JSONEncoder.OutputFormatting.sortedKeys behavior differs between Darwin and non-Darwin implementation #4702
• ISO8601DateFormatter.Options should have immutable static properties #4703
• JSONEncoder floating point behavior differs between Darwin and non-Darwin implementation #4704

[mickeyl]

swiftlang/swift-corelibs-libdispatch#834

[fumoboy007]

• NSLocking missing withLock(_:) method #4735

[fumoboy007]

• ParseStrategy and associated initializers are missing #4819

[mickeyl]

#4837

[parkera]

It also looks like none of the Sendable annotations have been ported over

See #5000