Switch to (temporarily) use main branch of ably-cocoa

This allows us to make use of the Swift concurrency enhancements that
have been added on `main`, and to identify any further concurrency
enhancements that still need to be made (in response to any new
concurrency errors that we get as we continue to develop the Chat SDK).

AblyChat.xcworkspace/xcshareddata/swiftpm/Package.resolved

@@ -1,13 +1,13 @@
 {
-  "originHash" : "fcc346d6fe86e610ac200cdbbf91c56204df67286546d5079bd9c610ee65953b",
+  "originHash" : "6a8d15fb1d326ac6e8a40c286c152332146d6f58c73123cb8083f68d483dd728",
   "pins" : [
     {
       "identity" : "ably-cocoa",
       "kind" : "remoteSourceControl",
       "location" : "https://github.com/ably/ably-cocoa",
       "state" : {
-        "revision" : "7f639c609e50053abd4590f34333f9472645558a",
-        "version" : "1.2.33"
+        "branch" : "main",
+        "revision" : "ccca241a8a7f08b22a93802161460c843d9b5bf3"
       }
     },
     {

Example/AblyChatExample/Mocks/MockRealtime.swift

@@ -44,6 +44,10 @@ final class MockRealtime: NSObject, RealtimeClientProtocol, Sendable {
             fatalError("Not implemented")
         }
 
+        var properties: ARTChannelProperties {
+            fatalError("Not implemented")
+        }
+
         func attach() {
             fatalError("Not implemented")
         }
@@ -211,4 +215,8 @@ final class MockRealtime: NSObject, RealtimeClientProtocol, Sendable {
     func close() {
         fatalError("Not implemented")
     }
+
+    func request(_: String, path _: String, params _: [String: String]?, body _: Any?, headers _: [String: String]?, callback _: @escaping ARTHTTPPaginatedCallback) throws {
+        fatalError("Not implemented")
+    }
 }

Package.resolved

@@ -1,13 +1,13 @@
 {
-  "originHash" : "fcc346d6fe86e610ac200cdbbf91c56204df67286546d5079bd9c610ee65953b",
+  "originHash" : "db24f2979451a46f504f45d35893eb8501f27488ae70e1412340139a0e7551e2",
   "pins" : [
     {
       "identity" : "ably-cocoa",
       "kind" : "remoteSourceControl",
       "location" : "https://github.com/ably/ably-cocoa",
       "state" : {
-        "revision" : "7f639c609e50053abd4590f34333f9472645558a",
-        "version" : "1.2.33"
+        "branch" : "main",
+        "revision" : "ccca241a8a7f08b22a93802161460c843d9b5bf3"
       }
     },
     {

Package.swift

@@ -20,7 +20,8 @@ let package = Package(
     dependencies: [
         .package(
             url: "https://github.com/ably/ably-cocoa",
-            from: "1.2.0"
+            // TODO: Switch back to using a tag (https://github.com/ably-labs/ably-chat-swift/issues/80)
+            branch: "main"
         ),
         .package(
             url: "https://github.com/apple/swift-argument-parser",

Sources/AblyChat/AblyCocoaExtensions/Ably+Dependencies.swift

@@ -1,10 +1,7 @@
 import Ably
 
-// TODO: remove "@unchecked Sendable" once https://github.com/ably/ably-cocoa/issues/1962 done
+extension ARTRealtime: RealtimeClientProtocol {}
 
-// This @retroactive is needed to silence the Swift 6 compiler error "extension declares a conformance of imported type 'ARTRealtimeChannels' to imported protocol 'Sendable'; this will not behave correctly if the owners of 'Ably' introduce this conformance in the future (…) add '@retroactive' to silence this warning". I don’t fully understand the implications of this but don’t really mind since both libraries are in our control.
-extension ARTRealtime: RealtimeClientProtocol, @retroactive @unchecked Sendable {}
+extension ARTRealtimeChannels: RealtimeChannelsProtocol {}
 
-extension ARTRealtimeChannels: RealtimeChannelsProtocol, @retroactive @unchecked Sendable {}
-
-extension ARTRealtimeChannel: RealtimeChannelProtocol, @retroactive @unchecked Sendable {}
+extension ARTRealtimeChannel: RealtimeChannelProtocol {}

Sources/BuildTool/BuildTool.swift

@@ -154,7 +154,7 @@ struct Lint: AsyncParsableCommand {
 
     /// Checks that the SPM-managed Package.resolved matches the Xcode-managed one. (I still don’t fully understand _why_ there are two files).
     ///
-    /// Ignores the `originHash` property of the Packaged.resolved file, because this property seems to frequently be different between the SPM version and the Xcode version, and I don’t know enough about SPM to know what this property means or whether there’s a reproducible way to get them to match.
+    /// Ignores the `originHash` property of the Package.resolved file, because this property seems to frequently be different between the SPM version and the Xcode version, and I don’t know enough about SPM to know what this property means or whether there’s a reproducible way to get them to match.
     func comparePackageLockfiles() async throws {
         let lockfilePaths = ["Package.resolved", "AblyChat.xcworkspace/xcshareddata/swiftpm/Package.resolved"]
         let lockfileContents = try await withThrowingTaskGroup(of: Data.self) { group in

Tests/AblyChatTests/Mocks/MockRealtime.swift

@@ -62,4 +62,8 @@ final class MockRealtime: NSObject, RealtimeClientProtocol, Sendable {
     func close() {
         fatalError("Not implemented")
     }
+
+    func request(_: String, path _: String, params _: [String: String]?, body _: Any?, headers _: [String: String]?, callback _: @escaping ARTHTTPPaginatedCallback) throws {
+        fatalError("Not implemented")
+    }
 }

Tests/AblyChatTests/Mocks/MockRealtimeChannel.swift

@@ -54,6 +54,10 @@ final class MockRealtimeChannel: NSObject, RealtimeChannelProtocol {
         fatalError("Not implemented")
     }
 
+    var properties: ARTChannelProperties {
+        fatalError("Not implemented")
+    }
+
     func attach() {
         fatalError("Not implemented")
     }