chore: fix strong concurrency warnings

PostHog.xcodeproj/project.pbxproj

@@ -1252,6 +1252,7 @@
 				SUPPORTS_MACCATALYST = NO;
 				SUPPORTS_MAC_DESIGNED_FOR_IPHONE_IPAD = NO;
 				SWIFT_EMIT_LOC_STRINGS = YES;
+				SWIFT_STRICT_CONCURRENCY = complete;
 				SWIFT_VERSION = 5.0;
 				TARGETED_DEVICE_FAMILY = "1,2";
 				TVOS_DEPLOYMENT_TARGET = 13.0;
@@ -1287,6 +1288,7 @@
 				SUPPORTS_MACCATALYST = NO;
 				SUPPORTS_MAC_DESIGNED_FOR_IPHONE_IPAD = NO;
 				SWIFT_EMIT_LOC_STRINGS = YES;
+				SWIFT_STRICT_CONCURRENCY = complete;
 				SWIFT_VERSION = 5.0;
 				TARGETED_DEVICE_FAMILY = "1,2";
 				TVOS_DEPLOYMENT_TARGET = 13.0;
@@ -1354,6 +1356,7 @@
 				SDKROOT = iphoneos;
 				SWIFT_ACTIVE_COMPILATION_CONDITIONS = DEBUG;
 				SWIFT_OPTIMIZATION_LEVEL = "-Onone";
+				SWIFT_VERSION = 5.0;
 				TVOS_DEPLOYMENT_TARGET = 13.0;
 				VERSIONING_SYSTEM = "apple-generic";
 				VERSION_INFO_PREFIX = "";
@@ -1415,6 +1418,7 @@
 				SDKROOT = iphoneos;
 				SWIFT_COMPILATION_MODE = wholemodule;
 				SWIFT_OPTIMIZATION_LEVEL = "-O";
+				SWIFT_VERSION = 5.0;
 				TVOS_DEPLOYMENT_TARGET = 13.0;
 				VALIDATE_PRODUCT = YES;
 				VERSIONING_SYSTEM = "apple-generic";
@@ -1458,6 +1462,7 @@
 				SWIFT_EMIT_LOC_STRINGS = YES;
 				SWIFT_OBJC_BRIDGING_HEADER = "";
 				SWIFT_OPTIMIZATION_LEVEL = "-Onone";
+				SWIFT_STRICT_CONCURRENCY = complete;
 				SWIFT_VERSION = 5.0;
 				TARGETED_DEVICE_FAMILY = "1,2,3,4";
 				TVOS_DEPLOYMENT_TARGET = 13.0;
@@ -1500,6 +1505,7 @@
 				SUPPORTS_MAC_DESIGNED_FOR_IPHONE_IPAD = YES;
 				SWIFT_EMIT_LOC_STRINGS = YES;
 				SWIFT_OBJC_BRIDGING_HEADER = "";
+				SWIFT_STRICT_CONCURRENCY = complete;
 				SWIFT_VERSION = 5.0;
 				TARGETED_DEVICE_FAMILY = "1,2,3,4";
 				TVOS_DEPLOYMENT_TARGET = 13.0;

PostHog/Models/PostHogEvent.swift

@@ -7,7 +7,7 @@
 
 import Foundation
 
-public class PostHogEvent {
+public class PostHogEvent: @unchecked Sendable {
     public var event: String
     public var distinctId: String
     public var properties: [String: Any]

PostHog/PostHogApi.swift

@@ -7,7 +7,7 @@
 
 import Foundation
 
-class PostHogApi {
+class PostHogApi: @unchecked Sendable {
     private let config: PostHogConfig
 
     // default is 60s but we do 10s
@@ -35,7 +35,7 @@ class PostHogApi {
         return request
     }
 
-    func batch(events: [PostHogEvent], completion: @escaping (PostHogBatchUploadInfo) -> Void) {
+    func batch(events: [PostHogEvent], completion: @escaping @Sendable (PostHogBatchUploadInfo) -> Void) {
         guard let url = URL(string: "batch", relativeTo: config.host) else {
             hedgeLog("Malformed batch URL error.")
             return completion(PostHogBatchUploadInfo(statusCode: nil, error: nil))
@@ -92,7 +92,7 @@ class PostHogApi {
         }.resume()
     }
 
-    func snapshot(events: [PostHogEvent], completion: @escaping (PostHogBatchUploadInfo) -> Void) {
+    func snapshot(events: [PostHogEvent], completion: @escaping @Sendable (PostHogBatchUploadInfo) -> Void) {
         guard let url = URL(string: config.snapshotEndpoint, relativeTo: config.host) else {
             hedgeLog("Malformed snapshot URL error.")
             return completion(PostHogBatchUploadInfo(statusCode: nil, error: nil))
@@ -153,7 +153,7 @@ class PostHogApi {
         distinctId: String,
         anonymousId: String,
         groups: [String: String],
-        completion: @escaping ([String: Any]?, _ error: Error?) -> Void
+        completion: @escaping @Sendable ([String: Any]?, _ error: Error?) -> Void
     ) {
         var urlComps = URLComponents()
         urlComps.path = "/decide"

PostHog/PostHogConsumerPayload.swift

@@ -9,5 +9,5 @@ import Foundation
 
 struct PostHogConsumerPayload {
     let events: [PostHogEvent]
-    let completion: (Bool) -> Void
+    let completion: @Sendable (Bool) -> Void
 }

PostHog/PostHogContext.swift

@@ -13,12 +13,21 @@ import Foundation
     import AppKit
 #endif
 
-class PostHogContext {
+class PostHogContext: @unchecked Sendable {
     #if !os(watchOS)
         private let reachability: Reachability?
     #endif
 
-    private lazy var theStaticContext: [String: Any] = {
+    #if !os(watchOS)
+        init(_ reachability: Reachability?) {
+            self.reachability = reachability
+        }
+    #else
+        init() {}
+    #endif
+
+    // UIDevice is marked as @MainActor
+    @MainActor func staticContext() -> [String: Any] {
         // Properties that do not change over the lifecycle of an application
         var properties: [String: Any] = [:]
 
@@ -80,18 +89,6 @@ class PostHogContext {
         #endif
 
         return properties
-    }()
-
-    #if !os(watchOS)
-        init(_ reachability: Reachability?) {
-            self.reachability = reachability
-        }
-    #else
-        init() {}
-    #endif
-
-    func staticContext() -> [String: Any] {
-        theStaticContext
     }
 
     private func platform() -> String {
@@ -102,7 +99,8 @@ class PostHogContext {
         return String(cString: machine)
     }
 
-    func dynamicContext() -> [String: Any] {
+    // UIScreen is marked as @MainActor
+    @MainActor func dynamicContext() -> [String: Any] {
         var properties: [String: Any] = [:]
 
         #if os(iOS) || os(tvOS)

PostHog/PostHogFeatureFlags.swift

@@ -7,7 +7,7 @@
 
 import Foundation
 
-class PostHogFeatureFlags {
+class PostHogFeatureFlags: @unchecked Sendable {
     private let config: PostHogConfig
     private let storage: PostHogStorage
     private let api: PostHogApi
@@ -38,7 +38,7 @@ class PostHogFeatureFlags {
         distinctId: String,
         anonymousId: String,
         groups: [String: String],
-        callback: @escaping () -> Void
+        callback: @escaping @Sendable () -> Void
     ) {
         isLoadingLock.withLock {
             if self.isLoadingFeatureFlags {
@@ -52,21 +52,22 @@ class PostHogFeatureFlags {
                    groups: groups)
         { data, _ in
             self.dispatchQueue.async {
-                guard let featureFlags = data?["featureFlags"] as? [String: Any],
-                      let featureFlagPayloads = data?["featureFlagPayloads"] as? [String: Any]
+                guard let data = data,
+                      let featureFlags = data["featureFlags"] as? [String: Any],
+                      let featureFlagPayloads = data["featureFlagPayloads"] as? [String: Any]
                 else {
                     hedgeLog("Error: Decide response missing correct featureFlags format")
 
                     self.notifyAndRelease()
 
                     return callback()
                 }
-                let errorsWhileComputingFlags = data?["errorsWhileComputingFlags"] as? Bool ?? false
+                let errorsWhileComputingFlags = data["errorsWhileComputingFlags"] as? Bool ?? false
 
                 #if os(iOS)
-                    if let sessionRecording = data?["sessionRecording"] as? Bool {
+                    if let sessionRecording = data["sessionRecording"] as? Bool {
                         self.config.sessionReplay = self.config.sessionReplay && sessionRecording
-                    } else if let sessionRecording = data?["sessionRecording"] as? [String: Any] {
+                    } else if let sessionRecording = data["sessionRecording"] as? [String: Any] {
                         // keeps the value from config.sessionReplay since having sessionRecording
                         // means its enabled on the project settings, but its only enabled
                         // when local config.sessionReplay is also enabled

PostHog/PostHogQueue.swift

@@ -17,7 +17,7 @@ import Foundation
 
  */
 
-class PostHogQueue {
+class PostHogQueue: @unchecked Sendable {
     enum PostHogApiEndpoint: Int {
         case batch
         case snapshot
@@ -221,7 +221,7 @@ class PostHogQueue {
         flushIfOverThreshold()
     }
 
-    private func take(_ count: Int, completion: @escaping (PostHogConsumerPayload) -> Void) {
+    private func take(_ count: Int, completion: @escaping @Sendable (PostHogConsumerPayload) -> Void) {
         dispatchQueue.async {
             self.isFlushingLock.withLock {
                 if self.isFlushing {