Hi everyone, I'm migrating Existential Any for my project to prepare for the Swift 6. I would like to ask you guys if there's any script or tool to automatically add any keyword. Thank you in advance!
1 Like
It’s possible SwiftLint or SwiftFormat have something for this.
1 Like
A script like this would require access to full type information (right?), which SwiftFormat and SwiftLint don't have unfortunately. If these tools had access to type information it would unlock a ton of new possibilities.
2 Likes
SwiftLint has a few so called Analyzer Rules which intercept the build process to extract type information. Implementing such a rule to add any to protocol types would be possible. It would have quite a long runtime. But that might be acceptable for an action applied only once.
What’s harder to figure out is where some would be equally appropriate.
1 Like
Actually, SwiftLint has integrated SwiftSyntax 3,5 years ago, so SwiftLint rules should now have access to the full syntax tree.
In my own code, I found that a lot of uses of any Foo could have actually been some Foo, so I don't think a bulk find-and-replace script or linter rule would be a good idea. You would be missing an opportunity to vet your code and remove existential containers from places where they were never really necessary.
Instead, I'd suggest using -enable-upcoming-feature ExistentialAny (see Using Upcoming Feature Flags for instructions) . This will make the compiler report any bare uses of a protocol without any, which you can then manually vet and update.
7 Likes
You could just do it in two phases: first to some Protocol, then manually fix (or apply compiler fixits) any cases where any is required.
2 Likes
The syntax tree, as its name implies, is only about syntax. Type information is a totally different topic.
3 Likes
My bad, for some reason I thought this might be part of the syntax tree as well, but you're absolutely right that it isn't.
2 Likes
This is a good question, quite a lot of code is going to need to be updated for this aspect of Swift 6 and it's not as simple as just adding any as you would be missing out on the subtle advantages of using some, opaque types.
There is, just enough information available using SourceKit to to identify where protocols are being referenced in source so I've written a small Swift "script" to attempt to help automate this conversion.
It follows the following:
There are a few extra edge cases handled using regular expressions and system protocol references are always elided to any to avoid breaking conformances. The script follows up by using the compiler with option -enable-upcoming-feature ExistentialAny to pick up any remaining missing anys and patches them in.
There will always be a few remaining errors to fix manually but it's working reasonably well. The results so far compiling the most popular Swift packages showing the deduplicated number of compilation errors compiling for option ExistentialAny before and after running the script are below.
repos/<rank>_<stars>_<name> ... #errors
repos/0001_37713_Alamofire/AFTER.txt 10
repos/0001_37713_Alamofire/BEFORE.txt 363
repos/0002_35061_fastlane/AFTER.txt 7
repos/0002_35061_fastlane/BEFORE.txt 7
repos/0003_25532_Charts/AFTER.txt 52
repos/0003_25532_Charts/BEFORE.txt 199
repos/0004_24159_SDWebImage/AFTER.txt 0
repos/0004_24159_SDWebImage/BEFORE.txt 0
repos/0005_22763_lottie-ios/BEFORE.txt 0
repos/0006_22232_RxSwift/AFTER.txt 26
repos/0006_22232_RxSwift/BEFORE.txt 761
repos/0007_21791_vapor/AFTER.txt 2
repos/0007_21791_vapor/BEFORE.txt 2
repos/0008_21366_SwiftyJSON/AFTER.txt 3
repos/0008_21366_SwiftyJSON/BEFORE.txt 8
repos/0009_20837_Hero/AFTER.txt 0
repos/0009_20837_Hero/BEFORE.txt 0
repos/0010_20172_Kingfisher/AFTER.txt 18
repos/0010_20172_Kingfisher/BEFORE.txt 109
repos/0011_18528_SnapKit/AFTER.txt 0
repos/0011_18528_SnapKit/BEFORE.txt 39
repos/0012_16168_SwiftLint/BEFORE.txt 0
repos/0013_15620_IQKeyboardManager/AFTER.txt 3
repos/0013_15620_IQKeyboardManager/BEFORE.txt 3
repos/0014_15353_realm-swift/AFTER.txt 17
repos/0014_15353_realm-swift/BEFORE.txt 235
repos/0015_14594_carthage/AFTER.txt 2
repos/0015_14594_carthage/BEFORE.txt 2
repos/0016_13989_Moya/AFTER.txt 62
repos/0016_13989_Moya/BEFORE.txt 62
repos/0017_13873_perfect/AFTER.txt 0
repos/0017_13873_perfect/BEFORE.txt 9
repos/0018_13854_PromiseKit/AFTER.txt 0
repos/0018_13854_PromiseKit/BEFORE.txt 24
repos/0019_13694_fmdb/AFTER.txt 0
repos/0019_13694_fmdb/BEFORE.txt 0
repos/0020_12703_CocoaLumberjack/AFTER.txt 2
repos/0020_12703_CocoaLumberjack/BEFORE.txt 2
repos/0021_12409_IGListKit/AFTER.txt 4
repos/0021_12409_IGListKit/BEFORE.txt 3
repos/0022_12209_CocoaAsyncSocket/AFTER.txt 0
repos/0022_12209_CocoaAsyncSocket/BEFORE.txt 0
repos/0023_11443_Eureka/AFTER.txt 3
repos/0023_11443_Eureka/BEFORE.txt 3
repos/0024_11225_SkeletonView/AFTER.txt 3
repos/0024_11225_SkeletonView/BEFORE.txt 3
repos/0025_11197_SwifterSwift/AFTER.txt 3
repos/0025_11197_SwifterSwift/BEFORE.txt 10
repos/0026_10141_NVActivityIndicatorView/AFTER.txt 0
repos/0026_10141_NVActivityIndicatorView/BEFORE.txt 0
repos/0027_9447_Quick/AFTER.txt 0
repos/0027_9447_Quick/BEFORE.txt 5
repos/0028_9173_AudioKit/AFTER.txt 0
repos/0028_9173_AudioKit/BEFORE.txt 150
repos/0029_9100_CryptoSwift/AFTER.txt 16
repos/0029_9100_CryptoSwift/BEFORE.txt 65
repos/0030_8962_ObjectMapper/AFTER.txt 0
repos/0030_8962_ObjectMapper/BEFORE.txt 20
repos/0031_8800_swift-package-manager/AFTER.txt 1
repos/0031_8800_swift-package-manager/BEFORE.txt 1
repos/0032_8687_R.swift/AFTER.txt 2
repos/0032_8687_R.swift/BEFORE.txt 2
repos/0033_8620_IBAnimatable/AFTER.txt 3
repos/0033_8620_IBAnimatable/BEFORE.txt 3
repos/0034_8286_SQLite.swift/AFTER.txt 40
repos/0034_8286_SQLite.swift/BEFORE.txt 265
repos/0035_7972_swiftgen/AFTER.txt 10
repos/0035_7972_swiftgen/BEFORE.txt 10
repos/0036_7611_Reachability.swift/AFTER.txt 0
repos/0036_7611_Reachability.swift/BEFORE.txt 0
repos/0037_7572_PureLayout/AFTER.txt 0
repos/0037_7572_PureLayout/BEFORE.txt 0
repos/0038_7529_Kitura/AFTER.txt 2
repos/0038_7529_Kitura/BEFORE.txt 2
repos/0039_7332_Starscream/AFTER.txt 0
repos/0039_7332_Starscream/BEFORE.txt 69
repos/0040_7295_Cartography/AFTER.txt 19
repos/0040_7295_Cartography/BEFORE.txt 104
repos/0041_7206_ReSwift/AFTER.txt 7
repos/0041_7206_ReSwift/BEFORE.txt 14
repos/0042_7187_JTAppleCalendar/AFTER.txt 3
repos/0042_7187_JTAppleCalendar/BEFORE.txt 3
repos/0043_7150_JVFloatLabeledTextField/AFTER.txt 2
repos/0043_7150_JVFloatLabeledTextField/BEFORE.txt 2
repos/0044_7087_facebook-ios-sdk/BEFORE.txt 0
repos/0045_7001_swift-nio/AFTER.txt 2
repos/0045_7001_swift-nio/BEFORE.txt 2
repos/0046_6939_RIBs/AFTER.txt 14
repos/0046_6939_RIBs/BEFORE.txt 14
repos/0047_6932_SwiftDate/AFTER.txt 31
repos/0047_6932_SwiftDate/BEFORE.txt 96
repos/0048_6922_KeychainAccess/AFTER.txt 0
repos/0048_6922_KeychainAccess/BEFORE.txt 5
repos/0049_6745_ViewAnimator/AFTER.txt 3
repos/0049_6745_ViewAnimator/BEFORE.txt 3
repos/0050_6703_Nuke/AFTER.txt 40
repos/0050_6703_Nuke/BEFORE.txt 113
repos/0051_6624_sourcery/AFTER.txt 2
repos/0051_6624_sourcery/BEFORE.txt 2
repos/0052_6545_SwiftMessages/AFTER.txt 3
repos/0052_6545_SwiftMessages/BEFORE.txt 3
repos/0053_6505_FSPagerView/AFTER.txt 3
repos/0053_6505_FSPagerView/BEFORE.txt 3
repos/0054_6300_swift-composable-architecture/AFTER.txt 2
repos/0054_6300_swift-composable-architecture/BEFORE.txt 2
repos/0055_6209_DTCoreText/AFTER.txt 1
repos/0055_6209_DTCoreText/BEFORE.txt 1
repos/0056_6117_KIF/AFTER.txt 4
repos/0056_6117_KIF/BEFORE.txt 4
repos/0057_6075_AMScrollingNavbar/AFTER.txt 3
repos/0057_6075_AMScrollingNavbar/BEFORE.txt 3
repos/0058_5992_SwiftyStoreKit/AFTER.txt 6
repos/0058_5992_SwiftyStoreKit/BEFORE.txt 56
repos/0059_5915_Sparkle/BEFORE.txt 0
repos/0060_5877_SwiftEntryKit/AFTER.txt 3
repos/0060_5877_SwiftEntryKit/BEFORE.txt 3
repos/0061_5851_swipecellkit/AFTER.txt 3
repos/0061_5851_swipecellkit/BEFORE.txt 3
repos/0062_5839_macaw/AFTER.txt 2
repos/0062_5839_macaw/BEFORE.txt 2
repos/0063_5763_SwiftFormat/AFTER.txt 0
repos/0063_5763_SwiftFormat/BEFORE.txt 19
repos/0064_5506_SwiftyBeaver/AFTER.txt 0
repos/0064_5506_SwiftyBeaver/BEFORE.txt 30
repos/0065_5481_XcodeGen/AFTER.txt 10
repos/0065_5481_XcodeGen/BEFORE.txt 10
repos/0066_5354_SideMenu/AFTER.txt 3
repos/0066_5354_SideMenu/BEFORE.txt 3
repos/0067_5298_Swinject/AFTER.txt 5
repos/0067_5298_Swinject/BEFORE.txt 76
repos/0068_5191_MessageKit/BEFORE.txt 0
repos/0069_5150_GRDB.swift/AFTER.txt 15
repos/0069_5150_GRDB.swift/BEFORE.txt 112
repos/0070_4997_Surge/AFTER.txt 0
repos/0070_4997_Surge/BEFORE.txt 0
repos/0071_4949_FloatingPanel/AFTER.txt 3
repos/0071_4949_FloatingPanel/BEFORE.txt 3
repos/0072_4941_PermissionsKit/AFTER.txt 3
repos/0072_4941_PermissionsKit/BEFORE.txt 3
repos/0073_4891_OHHTTPStubs/AFTER.txt 0
repos/0073_4891_OHHTTPStubs/BEFORE.txt 3
repos/0074_4862_Instructions/AFTER.txt 3
repos/0074_4862_Instructions/BEFORE.txt 3
repos/0075_4802_socket.io-client-swift/AFTER.txt 3
repos/0075_4802_socket.io-client-swift/BEFORE.txt 3
repos/0076_4744_gpuimage2/AFTER.txt 0
repos/0076_4744_gpuimage2/BEFORE.txt 29
repos/0077_4742_ESTabBarController/AFTER.txt 3
repos/0077_4742_ESTabBarController/BEFORE.txt 3
repos/0078_4726_SwiftUIX/AFTER.txt 101
repos/0078_4726_SwiftUIX/BEFORE.txt 101
repos/0079_4648_SwiftyUserDefaults/AFTER.txt 0
repos/0079_4648_SwiftyUserDefaults/BEFORE.txt 7
repos/0080_4617_async/AFTER.txt 0
repos/0080_4617_async/BEFORE.txt 0
repos/0081_4542_PhoneNumberKit/AFTER.txt 0
repos/0081_4542_PhoneNumberKit/BEFORE.txt 7
repos/0082_4462_Advance/AFTER.txt 0
repos/0082_4462_Advance/BEFORE.txt 0
repos/0083_4451_Nimble/AFTER.txt 21
repos/0083_4451_Nimble/BEFORE.txt 84
repos/0084_4405_AnimatedCollectionViewLayout/AFTER.txt 3
repos/0084_4405_AnimatedCollectionViewLayout/BEFORE.txt 3
repos/0085_4382_chartview/AFTER.txt 3
repos/0085_4382_chartview/BEFORE.txt 3
repos/0086_4381_swift-algorithms/AFTER.txt 0
repos/0086_4381_swift-algorithms/BEFORE.txt 0
repos/0087_4215_EFQRCode/AFTER.txt 0
repos/0087_4215_EFQRCode/BEFORE.txt 7
repos/0088_4212_bond/AFTER.txt 2
repos/0088_4212_bond/BEFORE.txt 2
repos/0089_4188_SVGKit/AFTER.txt 8
repos/0089_4188_SVGKit/BEFORE.txt 8
repos/0090_4101_Bagel/AFTER.txt 1
repos/0090_4101_Bagel/BEFORE.txt 1
repos/0091_4089_ActiveLabel.swift/AFTER.txt 3
repos/0091_4089_ActiveLabel.swift/BEFORE.txt 3
repos/0092_4019_Publish/AFTER.txt 2
repos/0092_4019_Publish/BEFORE.txt 2
repos/0093_3984_Siren/AFTER.txt 3
repos/0093_3984_Siren/BEFORE.txt 3
repos/0094_3959_SkyFloatingLabelTextField/AFTER.txt 3
repos/0094_3959_SkyFloatingLabelTextField/BEFORE.txt 3
repos/0095_3880_swift-protobuf/AFTER.txt 11
repos/0095_3880_swift-protobuf/BEFORE.txt 167
repos/0096_3840_Then/AFTER.txt 0
repos/0096_3840_Then/BEFORE.txt 0
repos/0097_3827_KSCrash/AFTER.txt 3
repos/0097_3827_KSCrash/BEFORE.txt 3
repos/0098_3827_MarqueeLabel/AFTER.txt 3
repos/0098_3827_MarqueeLabel/BEFORE.txt 3
repos/0099_3818_AlamofireImage/AFTER.txt 48
repos/0099_3818_AlamofireImage/BEFORE.txt 48
5 Likes
I've taken this idea a bit further, testing a broader range of code and added an app target that you can use to open a Package.swift and try the conversion out. Results continue to be good, sometimes dramatically so (the numbers suggest I may be able to save the maintainer of RxSwift towards 2000 edits) and the approach of patching the code to review and test before committing seems sound.
If you don't find the idea of automated migration attractive it is a very conservative implementation, deliding (the opposite of eliding?) to some only for procedure arguments. Initialised storage tends to be a non-issue as type inference will look after the type anyway and uninitialised variables and properties particularly if they are var I'd argue you generally wouldn't want to be using an opaque some type.
Results of last nights run (before/after are the number of errors compiling in mode ExistentialAny), and edits is the number of individual changes that needed to be made to the project sources.
#errors elided
#rank name (stars) before after edits any some (approx)
#---- ------------------------------------- ------ ----- ----- ---- ----
#0000 NetNewsWire (7265*) 17 1 429 280 149
#0001 Alamofire (37713*) 2009 0 392 344 50
#0002 fastlane (35061*) 63 0 7 4 3
#0003 Charts (25532*) 3698 0 196 172 24
#0004 SDWebImage (24159*) 0 0 0 0 0
#0005 lottie-ios (22763*) 9228 0 379 338 41
#0006 RxSwift (22232*) 16182 4 1904 1479 523
#0007 vapor (21791*) 40 8 434 313 124
#0008 SwiftyJSON (21366*) 16 0 10 9 1
#0009 Hero (20837*) 0 0 13 11 2
#0010 Kingfisher (20172*) 964 2 105 92 15
#0011 SnapKit (18528*) 221 0 39 12 27
#0012 SwiftLint (16168*) 1013 44 216 182 34
#0013 IQKeyboardManager (15620*) 26 26 2 2 0
#0014 realm-swift (15353*) 1723 18 274 253 21
#0015 carthage (14594*) 47 14 15 12 3
#0016 Moya (13989*) 13565 126 86 58 30
#0017 perfect (13873*) 14 0 7 7 0
#0018 PromiseKit (13854*) 73 0 45 45 0
#0019 fmdb (13694*) 0 0 0 0 0
#0020 CocoaLumberjack (12703*) 52 4 3 2 1
#0021 IGListKit (12409*) 4 1 6 5 1
#0022 CocoaAsyncSocket (12209*) 0 0 2 2 0
#0023 Eureka (11443*) 70 70 28 25 3
#0024 SkeletonView (11225*) 64 64 11 11 0
#0025 SwifterSwift (11197*) 119 0 10 9 1
#0026 NVActivityIndicatorView (10141*) 0 0 6 6 0
#0027 Quick (9447*) 26 0 2 2 0
#0028 AudioKit (9173*) 2660 0 152 94 58
#0029 CryptoSwift (9100*) 934 0 57 41 16
#0030 ObjectMapper (8962*) 70 0 22 22 0
#0031 swift-package-manager (8800*) 1 1 871 603 270
#0032 R.swift (8687*) 138 70 19 16 3
#0033 IBAnimatable (8620*) 174 174 7 6 1
#0034 SQLite.swift (8286*) 1344 45 243 193 59
#0035 swiftgen (7972*) 1007 84 139 118 21
#0036 Reachability.swift (7611*) 0 0 0 0 0
#0037 PureLayout (7572*) 0 0 0 0 0
#0038 Kitura (7529*) 14 135 181 162 21
#0039 Starscream (7332*) 238 0 77 58 20
#0040 Cartography (7295*) 468 34 71 46 36
#0041 ReSwift (7206*) 37 7 27 12 15
#0042 JTAppleCalendar (7187*) 26 26 18 15 3
#0043 JVFloatLabeledTextField (7150*) 2 2 0 0 0
#0044 facebook-ios-sdk (7087*) 0 0 428 345 86
#0045 swift-nio (7001*) 10 24 1186 937 262
#0046 RIBs (6939*) 16182 4 592 349 248
#0047 SwiftDate (6932*) 464 34 79 44 41
#0048 KeychainAccess (6922*) 8 0 31 30 1
#0049 ViewAnimator (6745*) 10 10 6 6 0
#0050 Nuke (6703*) 905 0 120 93 28
#0051 sourcery (6624*) 223 1149 124 94 31
#0052 SwiftMessages (6545*) 35 35 38 26 12
#0053 FSPagerView (6505*) 10 10 2 2 0
#0054 swift-composable-architecture (6300*) 32 71 136 124 13
#0055 DTCoreText (6209*) 1 1 0 0 0
#0056 KIF (6117*) 2 4 0 0 0
#0057 AMScrollingNavbar (6075*) 6 6 2 2 0
#0058 SwiftyStoreKit (5992*) 158 7 48 33 18
#0059 Sparkle (5915*) 1 1 6 6 0
#0060 SwiftEntryKit (5877*) 71 71 6 3 3
#0061 swipecellkit (5851*) 25 25 19 15 4
#0062 macaw (5839*) 7 22 9 8 1
#0063 SwiftFormat (5763*) 61 0 123 102 21
#0064 SwiftyBeaver (5506*) 63 0 26 22 4
#0065 XcodeGen (5481*) 281 23 26 21 5
#0066 SideMenu (5354*) 17 17 9 8 1
#0067 Swinject (5298*) 271 5 114 90 24
#0068 MessageKit (5191*) 37 3 262 48 214
#0069 GRDB.swift (5150*) 2106 28 203 203 0
#0070 Surge (4997*) 0 0 0 0 0
#0071 FloatingPanel (4949*) 18 18 82 77 5
#0072 PermissionsKit (4941*) 6 6 3 3 0
#0073 OHHTTPStubs (4891*) 4 0 1 1 0
#0074 Instructions (4862*) 52 52 32 31 1
#0075 socket.io-client-swift (4802*) 235 0 44 39 5
#0076 gpuimage2 (4744*) 549 0 41 18 23
#0077 ESTabBarController (4742*) 10 10 1 1 0
#0078 SwiftUIX (4726*) 2519 15 130 124 7
#0079 SwiftyUserDefaults (4648*) 15 0 6 6 0
#0080 async (4617*) 0 0 0 0 0
#0081 PhoneNumberKit (4542*) 20 0 6 6 0
#0082 Advance (4462*) 0 0 2 2 0
#0083 Nimble (4451*) 656 2 84 77 7
#0084 AnimatedCollectionViewLayout (4405*) 13 13 3 3 0
#0085 chartview (4382*) 5 3 0 0 0
#0086 swift-algorithms (4381*) 0 0 0 0 0
#0087 EFQRCode (4215*) 22 0 6 5 1
#0088 bond (4212*) 571 157 60 60 0
#0089 SVGKit (4188*) 15 15 0 0 0
#0090 Bagel (4101*) 1 3 2 2 0
#0091 ActiveLabel.swift (4089*) 8 8 1 1 0
#0092 Publish (4019*) 357 5 55 51 4
#0093 Siren (3984*) 24 24 2 2 0
#0094 SkyFloatingLabelTextField (3959*) 6 6 26 1 25
#0095 swift-protobuf (3880*) 1943 2 3062 2981 82
#0096 Then (3840*) 0 0 0 0 0
#0097 KSCrash (3827*) 3 0 0 0 0
#0098 MarqueeLabel (3827*) 4 4 7 6 1
#0099 AlamofireImage (3818*) 1756 0 65 57 8
#0100 TinyConstraints (3790*) 48 0 24 2 22
#0101 XCGLogger (3754*) 80 0 20 15 5
#0102 Valet (3751*) 0 0 0 0 0
#0103 SwiftWebUI (3751*) 10 24 245 155 90
#0104 DeviceKit (3693*) 4 4 0 0 0
#0105 firebase-ios-sdk (3653*) 310 160 459 425 36
#0106 promises (3640*) 81 0 45 45 0
#0107 swifter (3536*) 18 0 6 6 0
#0108 Argo (3497*) 3 3 0 0 0
#0109 CoreStore (3431*) 7085 649 443 417 27
#0110 periphery (3412*) 137 13 77 64 13
#0111 apollo-ios (3365*) 32 259 814 709 108
#0112 SwiftSoup (3363*) 42 0 5 2 3
#0113 Swiftz (3319*) 0 0 0 0 0
#0114 RNCryptor (3305*) 7 0 3 3 0
#0115 BubbleTransition (3290*) 4 4 0 0 0
#0116 PanModal (3281*) 16 16 19 15 4
#0117 BonMot (3269*) 172 2 46 43 3
#0118 Stevia (3250*) 0 0 2 2 0
#0119 SwiftUI-Introspect (3193*) 0 0 0 0 0
#0120 Toast-Swift (3147*) 4 4 0 0 0
#0121 DifferenceKit (3130*) 11 0 3 1 2
#0122 UIImageColors (3094*) 0 0 0 0 0
#0123 InAppSettingsKit (3094*) 1 5 0 0 0
#0124 SwiftLocation (3082*) 336 0 61 50 11
#0125 MagazineLayout (3076*) 29 29 6 3 3
#0126 OAuthSwift (3008*) 376 0 54 48 18
#0127 fengniao (2958*) 20 0 4 4 0
#0128 nanopb (2948*) 0 0 0 0 0
#0129 AMPopTip (2915*) 6 6 59 50 9
#0130 RxDataSources (2879*) 5069 4 2 2 0
#0131 LNPopupController (2857*) 7 4 0 0 0
#0132 URLNavigator (2853*) 10 0 42 20 29
#0133 AloeStackView (2849*) 10 10 0 0 0
#0134 ReactiveSwift (2841*) 1105 54 162 123 39
#0135 Reusable (2822*) 0 0 0 0 0
#0136 Localize-Swift (2819*) 8 8 10 10 0
#0137 SwiftRichString (2809*) 205 0 55 49 6
#0138 Gifu (2777*) 0 0 2 1 1
#0139 tuist (2756*) 52 4 1450 1077 373
#0140 DynamicColor (2746*) 0 0 0 0 0
#0141 TwitterTextEditor (2722*) 21 21 50 44 8
#0142 swift-log (2721*) 52 4 30 29 1
#0143 LifetimeTracker (2675*) 20 20 3 2 1
#0144 swift-argument-parser (2668*) 985 0 274 273 5
#0145 Brightroom (2665*) 2 2 7 6 1
#0146 Timepiece (2653*) 0 0 0 0 0
#0147 swift-snapshot-testing (2647*) 220 6 36 36 0
#0148 Cache (2597*) 88 0 15 15 0
#0149 WhatsNewKit (2542*) 101 0 11 10 1
#0150 reel-search (2539*) 12 12 7 5 2
#0151 Result (2524*) 27 0 11 11 0
#0152 plcrashreporter (2446*) 0 0 0 0 0
#0153 Swifter (2396*) 50 0 8 7 1
#0154 SwiftCharts (2396*) 119 119 96 83 16
#0155 Tabman (2373*) 28 28 75 35 40
#0156 ReactorKit (2367*) 15962 4 13 11 2
#0157 Segmentio (2365*) 16 16 0 0 0
#0158 HaishinKit.swift (2310*) 28 74 39 39 0
#0159 swift-collections (2310*) 164 0 90 90 0
#0160 files (2284*) 18 0 8 8 0
#0161 SimulatorStatusMagic (2274*) 8 8 0 0 0
#0162 Kanna (2263*) 107 0 54 46 8
#0163 FileKit (2218*) 162 0 17 17 0
#0164 carekit (2215*) 36 137 481 360 152
#0165 keychain-swift (2211*) 0 0 0 0 0
#0166 Zip (2196*) 0 0 0 0 0
#0167 OpenCombine (2190*) 3127 26 425 294 131
#0168 Render (2161*) 7 3 6 6 0
#0169 siesta (2159*) 1 1 137 102 36
#0170 CalendarKit (2142*) 39 39 46 28 18
#0171 Stencil (2132*) 8 9 126 114 15
#0172 HorizonCalendar (2125*) 48 48 35 28 7
#0173 Ink (2112*) 122 0 6 6 0
#0174 CollectionViewSlantedLayout (2101*) 12 12 0 0 0
#0175 Wormholy (2070*) 1 1 7 7 0
#0176 ocmock (2067*) 0 0 1 1 0
#0177 SourceKitten (2063*) 965 324 95 89 6
#0178 APNGKit (2033*) 45 0 15 12 3
#0179 time (2013*) 256 2 33 25 8
#0180 NextLevel (1991*) 16 16 26 25 1
#0181 PinLayout (1979*) 462 0 118 90 28
#0182 Hydra (1972*) 88 0 18 18 0
#0183 Down (1957*) 249 3 34 26 8
#0184 Player (1927*) 4 4 6 6 0
#0185 EasyPeasy (1909*) 18 4 4 3 1
#0186 APIKit (1909*) 125 0 39 35 4
#0187 BrightFutures (1900*) 6 9 9 9 0
#0188 XCoordinator (1869*) 2346 48 92 67 28
#0189 Mint (1861*) 410 19 5 5 0
#0190 zewo (1860*) 14 14 127 96 31
#0191 CollectionViewPagingLayout (1851*) 37 37 19 17 2
#0192 ZIPFoundation (1839*) 8 0 3 3 0
#0193 Dwifft (1838*) 0 0 0 0 0
#0194 swift-syntax (1831*) 2112 360 238 187 85
#0195 Watchdog (1820*) 0 0 0 0 0
#0196 swift-markdown (1798*) 1769 5 119 86 34
#0197 xcodes (1786*) 81 0 26 22 4
#0198 Plot (1779*) 1107 5 117 80 38
#0199 Resolver (1770*) 2 0 48 46 2
#0200 SwiftSVG (1764*) 317 0 46 46 0
#0201 Schedule (1755*) 4 0 1 1 0
#0202 Pageboy (1730*) 28 28 6 5 1
#0203 WaterfallGrid (1716*) 0 0 1 1 1
#0204 Tokamak (1707*) 1 1 200 176 28
#0205 Cleanse (1697*) 1158 0 394 374 24
#0206 swift-doc (1687*) 6 12 22 20 3
#0207 RxFlow (1680*) 15962 4 111 51 63
#0208 Rainbow (1668*) 4 0 1 1 0
#0209 ImageSlideshow (1647*) 1 1 12 12 1
#0210 Gloss (1643*) 34 0 14 14 0
#0211 stripe-ios (1640*) 1 3 993 736 259
#0212 swift-sh (1634*) 122 0 4 4 0
#0213 SwiftMoment (1634*) 0 0 0 0 0
#0214 pull-to-refresh (1621*) 11 11 7 4 3
#0215 Fakery (1606*) 0 12 3 1 2
#0216 xcodeproj (1606*) 13 0 35 35 0
#0217 SPAlert (1600*) 16 16 0 0 0
#0218 ios-snapshot-test-case (1598*) 6 4 0 0 0
#0219 SwiftyGif (1587*) 17 0 10 10 0
#0220 Runestone (1569*) 1 1 62 49 13
#0221 Splash (1558*) 34 0 8 6 2
#0222 swift-format (1553*) 1 1 17 9 8
#0223 grpc-swift (1537*) 10 47 1166 911 256
#0224 RxAlamofire (1537*) 15048 4 134 76 58
#0225 themis (1533*) 1 1 0 0 0
#0226 FontAwesome.swift (1531*) 20 15 2 2 0
#0227 pocketsvg (1521*) 0 0 0 0 0
#0228 Connectivity (1514*) 34 0 10 9 1
#0229 Venice (1499*) 14 14 3 3 0
#0230 Commander (1494*) 406 127 141 135 6
#0231 swift-async-algorithms (1489*) 41 2 165 159 6
#0232 SwiftKeychainWrapper (1476*) 7 0 3 3 0
#0233 Panels (1474*) 10 10 5 4 1
#0234 appicon (1464*) 729 0 1 1 0
#0235 qgrid (1451*) 0 0 0 0 0
#0236 XCLogParser (1450*) 1121 5 21 11 10
#0237 Repeat (1437*) 6 0 2 2 0
#0238 Validator (1436*) 26 26 24 13 11
#0239 Sheeeeeeeeet (1422*) 87 87 13 10 3
#0240 Codextended (1422*) 6 0 2 2 0
#0241 Floaty (1418*) 10 10 1 1 0
#0242 SwiftyMarkdown (1410*) 45 4 48 44 4
#0243 swift-numerics (1397*) 8 0 2 2 0
#0244 RxKeyboard (1396*) 15424 4 0 0 0
#0245 Magnetic (1394*) 101 99 1 1 0
#0246 SDWebImageSwiftUI (1392*) 45 21 18 18 4
#0247 SwiftTweaks (1377*) 49 49 35 25 13
#0248 Just (1374*) 36 0 14 3 11
#0249 SwiftCheck (1368*) 152 0 52 21 31
#0250 MKRingProgressView (1352*) 6 6 1 1 0
#0251 PathKit (1347*) 8 0 3 1 2
#0252 AppAuth-iOS (1344*) 0 0 1 1 0
#0253 IBPCollectionViewCompositionalLayout (1344*) 6 4 6 2 4
#0254 GEOSwift (1344*) 328 0 63 25 38
#0255 purchases-ios (1335*) 3 3 409 317 92
#0256 cleanroomlogger (1320*) 392 0 53 51 2
#0257 BetterCodable (1316*) 125 0 26 26 0
#0258 Willow (1311*) 46 0 46 38 8
#0259 UIFontComplete (1309*) 7 7 0 0 0
#0260 RxBluetoothKit (1308*) 14603 846 147 121 26
#0261 Networking (1306*) 0 0 0 0 0
#0262 Highlightr (1304*) 4 0 1 1 0
#0263 BlueSocket (1303*) 4 0 9 9 0
#0264 SwiftUICharts (1301*) 11 0 3 2 1
#0265 smoke-framework (1299*) 40 13 65 53 17
#0266 CocoaMQTT (1288*) 490 3 95 54 48
#0267 SWXMLHash (1281*) 13 0 3 3 0
#0268 Burritos (1273*) 4 4 0 0 0
#0269 QRCodeReader.swift (1265*) 13 13 5 5 0
#0270 Attabench (1257*) 15 174 21 19 2
#0271 BTree (1249*) 0 0 0 0 0
#0272 Ease (1245*) 17 11 1 1 0
#0273 RxGesture (1243*) 15962 4 0 0 0
#0274 CameraManager (1240*) 4 4 2 2 0
#0275 ViewInspector (1230*) 2289 494 134 112 41
#0276 SubtleVolume (1211*) 4 4 1 1 0
#0277 CenteredCollectionView (1211*) 4 4 1 1 0
#0278 swift-crypto (1207*) 9 0 23 23 0
#0279 RxSwiftExt (1205*) 15962 4 13 13 0
#0280 ASCollectionView (1203*) 11 46 14 14 0
#0281 ReactiveKit (1202*) 576 167 83 60 23
#0282 BartyCrouch (1196*) 7287 34 8 5 3
#0283 CombineCocoa (1192*) 28 28 0 0 0
#0284 Cluster (1191*) 77 17 36 24 12
#0285 CombineExt (1181*) 74 3 18 18 0
#0286 WSTagsField (1172*) 8 8 0 0 0
#0287 mapper (1171*) 0 0 0 0 0
#0288 DynamicButton (1166*) 36 36 5 4 1
#0289 SFSafeSymbols (1165*) 0 0 0 0 0
#0290 fluent (1151*) 36 8 30 24 6
#0291 euler (1150*) 0 0 0 0 0
#0292 Guaka (1145*) 14 0 20 19 1
#0293 Sitrep (1140*) 8324 2822 5 4 1
#0294 Aperture (1134*) 14 11 4 4 0
#0295 Preferences (1129*) 52 2 19 19 0
#0296 FDWaveformView (1115*) 6 6 1 1 0
#0297 Motion (1104*) 19 0 7 6 1
#0298 RxRealm (1091*) 15962 4 16 16 0
#0299 Atributika (1087*) 94 0 51 33 18
If one was to draw a side conclusion this rather validates the idea that "smart" eliding to mostly any but some for plain procedure arguments seems to offer very good source compatibility if it were to be pitched and implemented in the compiler. The majority of declarations are procedure arguments which will generally be best as some opaque types. It's difficult to justify such an approach I guess being neither here nor there but it's currently my preference to lessen the impact of the currently envisioned Swift 6. If nobody takes this path at least people will have this script to help the migration. Converting an app such as NetNewsWire rather than packages is still a work in progress due to complications with xcodebuild.
A couple of observations I made along the way if anybody from Apple has read this far:
- The new ExistentialAny mode fix-its seem to always suggest inserting
any. Could they be a bit smarter; like suggesting some for procedure arguments or a choice perhaps? - The fix-it for inserting
anyinto optional types works very well inserting the required brackets but handling implicitly unwrapped optionals correctly seems to have been overlooked.
The link again for a rainy day:
6 Likes
It's been announced that the source incompatible parts of SE0335 will no longer be a part of Swift 6 (Phew) so the heat is off this migration problem. I've modified my script to only elide to some which realises a part of the performance motivation behind this proposal by moving to opaque types for procedure arguments and return values. It may still be worth running the script over your project or package. Source compatibility remains good. Let me know in an issue if you encounter problems.
#errors elided
#rank name (stars) before after edits any some Error
#---- ------------------------------------- ------ ----- ----- ----- ---- -----
#0001 Alamofire (37713*) 0 0 50 0 50 0
#0002 fastlane (35061*) 0 0 3 0 3 0
#0003 Charts (25532*) 0 0 40 14 26 0
#0004 SDWebImage (24159*) 0 0 0 0 0 0
#0005 lottie-ios (22763*) 0 0 33 0 33 0
#0006 RxSwift (22232*) 0 2 662 110 557 921
#0007 vapor (21791*) 0 6 125 0 125 0
#0008 SwiftyJSON (21366*) 0 0 1 0 1 0
#0009 Hero (20837*) 0 0 8 0 8 0
#0010 Kingfisher (20172*) 0 2 15 0 15 0
#0011 SnapKit (18528*) 0 0 27 0 27 0
#0012 SwiftLint (16168*) 3 99 34 0 34 0
#0013 IQKeyboardManager (15620*) 3 3 2 0 2 0
#0014 realm-swift (15353*) 0 0 6 0 6 3
#0015 carthage (14594*) 0 0 3 0 3 3
#0016 Moya (13989*) 0 2 30 0 30 10
#0017 perfect (13873*) 0 0 0 0 0 0
#0018 PromiseKit (13854*) 0 0 0 0 0 0
#0019 fmdb (13694*) 0 0 0 0 0 0
#0020 CocoaLumberjack (12703*) 0 0 0 0 0 0
#0021 IGListKit (12409*) 3 4 1 0 1 0
#0022 CocoaAsyncSocket (12209*) 0 0 0 0 0 0
#0023 Eureka (11443*) 3 3 13 0 13 0
#0024 SkeletonView (11225*) 3 3 0 0 0 0
#0025 SwifterSwift (11197*) 0 0 0 0 0 0
#0026 NVActivityIndicatorView (10141*) 0 0 0 0 0 0
#0027 Quick (9447*) 0 0 0 0 0 0
#0028 AudioKit (9173*) 0 0 58 0 58 0
#0029 CryptoSwift (9100*) 0 0 16 0 16 0
#0030 ObjectMapper (8962*) 0 0 0 0 0 0
#0031 swift-package-manager (8800*) 1 1 287 0 287 2
#0032 R.swift (8687*) 0 0 1 0 1 0
#0033 IBAnimatable (8620*) 3 3 30 0 30 0
#0034 SQLite.swift (8286*) 0 40 61 0 61 0
#0035 swiftgen (7972*) 0 9 22 0 22 0
#0036 Reachability.swift (7611*) 0 0 0 0 0 0
#0037 PureLayout (7572*) 0 0 0 0 0 0
#0038 Kitura (7529*) 0 6 21 0 21 0
#0039 Starscream (7332*) 0 0 20 0 20 1
#0040 Cartography (7295*) 0 19 37 0 37 0
#0041 ReSwift (7206*) 0 2 11 0 11 0
#0042 JTAppleCalendar (7187*) 3 3 6 0 6 0
#0043 JVFloatLabeledTextField (7150*) 2 2 0 0 0 0
#0044 facebook-ios-sdk (7087*) 0 0 86 0 86 3
#0045 swift-nio (7001*) 0 6 258 0 258 14
#0046 RIBs (6939*) 3 2 248 0 248 0
#0047 SwiftDate (6932*) 0 25 41 0 41 0
#0048 KeychainAccess (6922*) 0 0 7 6 1 75
#0049 ViewAnimator (6745*) 3 3 0 0 0 0
#0050 Nuke (6703*) 0 0 29 0 29 3
#0051 sourcery (6624*) 2 9 25 0 25 0
#0052 SwiftMessages (6545*) 3 3 14 0 14 0
#0053 FSPagerView (6505*) 3 3 0 0 0 0
#0054 swift-composable-architecture (6300*) 0 4 0 0 0 0
#0055 DTCoreText (6209*) 1 1 0 0 0 0
#0056 KIF (6117*) 3 2 0 0 0 0
#0057 AMScrollingNavbar (6075*) 3 3 2 0 2 0
#0058 SwiftyStoreKit (5992*) 0 4 14 0 14 0
#0059 Sparkle (5915*) 1 1 0 0 0 0
#0060 SwiftEntryKit (5877*) 3 3 3 0 3 0
#0061 swipecellkit (5851*) 3 3 4 0 4 0
#0062 macaw (5839*) 8 8 1 0 1 0
#0063 SwiftFormat (5763*) 0 0 23 0 23 0
#0064 SwiftyBeaver (5506*) 0 0 4 0 4 0
#0065 XcodeGen (5481*) 0 19 8 0 8 0
#0066 SideMenu (5354*) 3 3 7 0 7 0
#0067 Swinject (5298*) 0 5 19 0 19 0
#0068 MessageKit (5191*) 3 3 222 0 222 0
#0069 GRDB.swift (5150*) 0 12 13 1 13 2
#0070 Surge (4997*) 0 0 0 0 0 0
#0071 FloatingPanel (4949*) 3 3 14 0 14 0
#0072 PermissionsKit (4941*) 3 3 0 0 0 0
#0073 OHHTTPStubs (4891*) 0 0 0 0 0 0
#0074 Instructions (4862*) 3 3 2 0 2 0
#0075 socket.io-client-swift (4802*) 0 0 5 0 5 0
#0076 gpuimage2 (4744*) 0 0 23 0 23 0
#0077 ESTabBarController (4742*) 3 3 0 0 0 0
#0078 SwiftUIX (4726*) 0 2 32 0 32 0
#0079 SwiftyUserDefaults (4648*) 0 0 0 0 0 0
#0080 async (4617*) 0 0 0 0 0 0
#0081 PhoneNumberKit (4542*) 0 0 0 0 0 0
#0082 Advance (4462*) 0 0 0 0 0 0
#0083 Nimble (4451*) 0 2 9 2 7 0
#0084 AnimatedCollectionViewLayout (4405*) 3 3 0 0 0 0
#0085 chartview (4382*) 3 3 0 0 0 0
#0086 swift-algorithms (4381*) 0 0 0 0 0 0
#0087 EFQRCode (4215*) 0 0 1 0 1 0
#0088 bond (4212*) 0 12 0 0 0 0
#0089 SVGKit (4188*) 9 9 0 0 0 0
#0090 Bagel (4101*) 2 2 0 0 0 0
#0091 ActiveLabel.swift (4089*) 3 3 0 0 0 0
#0092 Publish (4019*) 0 4 4 0 4 0
#0093 Siren (3984*) 3 3 0 0 0 0
#0094 SkyFloatingLabelTextField (3959*) 3 3 25 0 25 0
#0095 swift-protobuf (3880*) 0 2 41 0 41 0
#0096 Then (3840*) 0 0 0 0 0 0
#0097 KSCrash (3827*) 3 0 0 0 0 0
#0098 MarqueeLabel (3827*) 3 3 1 0 1 0
#0099 AlamofireImage (3818*) 0 0 8 0 8 0
#0100 TinyConstraints (3790*) 25 0 24 1 23 0
#0101 XCGLogger (3754*) 22 0 20 15 5 0
#0102 Valet (3751*) 0 0 0 0 0 0
#0103 SwiftWebUI (3751*) 4 8 245 108 137 2
#0104 DeviceKit (3693*) 3 3 0 0 0 0
#0105 firebase-ios-sdk (3653*) 116 4 524 482 44 243
#0106 promises (3640*) 26 0 45 45 0 45
#0107 swifter (3536*) 6 0 6 6 0 2
#0108 Argo (3497*) 2 2 0 0 0 0
#0109 CoreStore (3431*) 312 28 2603 441 2195 49
#0110 periphery (3412*) 56 14 75 57 18 6
#0111 apollo-ios (3365*) 6 4 878 766 116 146
#0112 SwiftSoup (3363*) 7 0 5 2 3 0
#0113 Swiftz (3319*) 3 0 0 0 0 0
#0114 RNCryptor (3305*) 5 0 3 3 0 0
#0115 BubbleTransition (3290*) 3 3 5 3 2 0
#0116 PanModal (3281*) 3 3 26 17 9 0
#0117 BonMot (3269*) 37 2 46 43 3 1
#0118 Stevia (3250*) 0 0 2 2 0 0
#0119 SwiftUI-Introspect (3193*) 0 0 0 0 0 0
#0120 Toast-Swift (3147*) 3 3 0 0 0 0
#0121 DifferenceKit (3130*) 5 0 3 3 0 0
#0122 UIImageColors (3094*) 0 0 0 0 0 0
#0123 InAppSettingsKit (3094*) 1 1 0 0 0 0
#0124 SwiftLocation (3082*) 50 0 56 48 8 12
#0125 MagazineLayout (3076*) 3 3 6 3 3 0
#0126 OAuthSwift (3008*) 77 0 54 46 21 9
#0127 fengniao (2958*) 10 0 4 4 0 2
#0128 nanopb (2948*) 0 0 0 0 0 0
#0129 AMPopTip (2915*) 3 3 62 52 10 16
#0130 RxDataSources (2879*) 750 2 2 2 0 2
#0131 LNPopupController (2857*) 4 4 1 0 1 0
#0132 URLNavigator (2853*) 6 0 42 20 29 1
#0133 AloeStackView (2849*) 3 3 0 0 0 0
#0134 ReactiveSwift (2841*) 154 25 171 133 38 102
#0135 Reusable (2822*) 0 0 0 0 0 0
#0136 Localize-Swift (2819*) 3 3 0 0 0 0
#0137 SwiftRichString (2809*) 50 0 435 53 382 1
#0138 Gifu (2777*) 0 0 2 1 1 0
#0139 tuist (2756*) 25 49 1480 1069 411 103
#0140 DynamicColor (2746*) 0 0 0 0 0 0
#0141 TwitterTextEditor (2722*) 3 3 57 33 24 4
#0142 swift-log (2721*) 24 5 30 23 7 2
#0143 LifetimeTracker (2675*) 3 3 3 2 1 0
#0144 swift-argument-parser (2668*) 163 3 271 263 8 38
#0145 Brightroom (2665*) 2 2 15 12 3 5
#0146 Timepiece (2653*) 0 0 0 0 0 0
#0147 swift-snapshot-testing (2647*) 40 6 36 36 0 6
#0148 Cache (2597*) 18 0 18 18 0 12
#0149 WhatsNewKit (2542*) 13 0 11 10 1 0
#0150 reel-search (2539*) 3 3 8 6 2 0
#0151 Result (2524*) 17 0 13 13 0 14
#0152 plcrashreporter (2446*) 0 0 0 0 0 0
#0153 Swifter (2396*) 10 0 7 7 0 4
#0154 SwiftCharts (2396*) 3 3 96 80 19 0
#0155 Tabman (2373*) 3 3 74 33 41 0
#0156 ReactorKit (2367*) 761 2 13 10 3 0
#0157 Segmentio (2365*) 3 3 0 0 0 0
#0158 HaishinKit.swift (2310*) 15 26 39 39 0 39
#0159 swift-collections (2310*) 23 0 89 89 0 1
#0160 files (2284*) 10 0 8 8 0 8
#0161 SimulatorStatusMagic (2274*) 8 8 0 0 0 0
#0162 Kanna (2263*) 55 2 54 38 16 0
#0163 FileKit (2218*) 29 0 17 17 0 11
#0164 carekit (2215*) 8 3 471 338 164 69
#0165 keychain-swift (2211*) 0 0 0 0 0 0
#0166 Zip (2196*) 0 0 0 0 0 0
#0167 OpenCombine (2190*) 227 22 442 305 137 67
#0168 Render (2161*) 7 8 3 3 0 0
#0169 siesta (2159*) 1 1 137 100 38 15
#0170 CalendarKit (2142*) 3 3 47 27 20 0
#0171 Stencil (2132*) 5 7 126 90 39 5
#0172 HorizonCalendar (2125*) 3 3 9 6 3 0
#0173 Ink (2112*) 7 0 6 6 0 1
#0174 CollectionViewSlantedLayout (2101*) 3 3 0 0 0 0
#0175 Wormholy (2070*) 1 1 8 7 1 7
#0176 ocmock (2067*) 0 0 1 1 0 0
#0177 SourceKitten (2063*) 195 4 63 58 5 2
#0178 APNGKit (2033*) 17 0 15 12 3 5
#0179 time (2013*) 35 5 33 16 17 0
#0180 NextLevel (1991*) 3 3 28 27 1 13
#0181 PinLayout (1979*) 119 0 121 92 29 2
#0182 Hydra (1972*) 24 0 360 22 338 17
#0183 Down (1957*) 29 3 34 26 8 7
#0184 Player (1927*) 3 3 6 6 0 4
#0185 EasyPeasy (1909*) 6 0 5 2 3 0
#0186 APIKit (1909*) 33 0 39 35 4 22
#0187 BrightFutures (1900*) 3 20 27 27 0 28
#0188 XCoordinator (1869*) 742 5 121 82 42 0
#0189 Mint (1861*) 151 19 5 5 0 2
#0190 zewo (1860*) 4 4 135 73 62 15
#0191 CollectionViewPagingLayout (1851*) 3 3 19 17 2 0
#0192 ZIPFoundation (1839*) 4 0 3 2 1 1
#0193 Dwifft (1838*) 0 0 0 0 0 0
#0194 swift-syntax (1831*) 333 5 218 188 42 2
#0195 Watchdog (1820*) 0 0 0 0 0 0
#0196 swift-markdown (1798*) 245 8 119 84 36 1
#0197 xcodes (1786*) 34 2 24 20 4 16
#0198 Plot (1779*) 117 13 117 67 51 0
#0199 Resolver (1770*) 2 0 48 46 2 0
# ====== ====== ====
# 13290 6085 7325
4 Likes
Hello @johnno1962 , I truly appreciate the script you've written to expedite the existential any migration. However, I'm unsure about how to use this script in my app. I have an app with various modules that require migration. Could you please provide more detailed instructions on utilizing this script, preferably with a Git description you've written? I would be very grateful. Thank you a lot.
Hi, this script is no longer necessary as "ExistentialAny" has effectively been withdrawn from Swift 6 but if you want to increase your usage of opaque types you can still run it over your project. The easiest way to do this is clone the repo mentioned above and run the "Unbreak" target which is a small Mac .app that runs the script for you. Use the menu item File/Open Project to select your project/package's project file then press the "Prepare for Swift 6" button in the document window and see what happens. Support is pretty limited for this project now as it has been made redundant.
3 Likes
Hello @nomadcoder I've worked on something that helps me migrate 3 projects between 100k and 1M loc. Far from perfect but could definitely help.
2 Likes