chore(concurrency): make CasbinError & nested enums Sendable; constrain InternalApi generic; wrap FileAdapter handlers; mark Config Sendable\n\n- Adds Sendable to error enums\n- Constrains afterOperatePolicy generic T: Sendable\n- Wraps Util.* handlers in explicit @sendable closures\n- Marks Config as Sendable\n\nThis consolidates sendability fixes into one PR to address Swift 6 warnings.

Author: zamderax

Sources/Casbin/APi/InternalApi.swift

@@ -74,7 +74,7 @@ extension CoreApi {
     }
 
 
-    private func afterOperatePolicy<T>(sec:String,oped:Bool,d:EventData,t:T) -> EventLoopFuture<T> {
+    private func afterOperatePolicy<T: Sendable>(sec:String,oped:Bool,d:EventData,t:T) -> EventLoopFuture<T> {
         if oped {
             emit(e: Event.PolicyChange, d: d)
             emit(e: Event.ClearCache, d: EventData.ClearCache)
@@ -88,4 +88,3 @@ extension CoreApi {
         return eventLoopGroup.next().makeSucceededFuture(t)
     }
 }
-

Sources/Casbin/CasbinError.swift

@@ -13,7 +13,7 @@
 // limitations under the License.
 
 import Foundation
-public enum CasbinError:Error,LocalizedError,CustomStringConvertible {
+public enum CasbinError: Error, LocalizedError, CustomStringConvertible, Sendable {
     public var description: String {
         switch self {
         case .RBAC_ERROR(let e):
@@ -36,7 +36,7 @@ public enum CasbinError:Error,LocalizedError,CustomStringConvertible {
     case OtherErrorMessage(String)
     case IoError(String)
 
-    public enum MatchError: CustomStringConvertible {
+    public enum MatchError: CustomStringConvertible, Sendable {
         public var description: String {
             switch self {
 
@@ -51,7 +51,7 @@ public enum CasbinError:Error,LocalizedError,CustomStringConvertible {
         case MatchFuntionArgsNotString
     }
 
-    public enum RbacError: CustomStringConvertible {
+    public enum RbacError: CustomStringConvertible, Sendable {
         public var description: String {
             switch self {
 
@@ -75,7 +75,7 @@ public enum CasbinError:Error,LocalizedError,CustomStringConvertible {
         case InvalidFieldVaulesParameter
     }
 
-    public enum ModelError:CustomStringConvertible {
+    public enum ModelError: CustomStringConvertible, Sendable {
         public var description: String {
             switch self {