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https://github.com/JohnEstropia/CoreStore.git
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goodbye ObjectiveC
This commit is contained in:
John Estropia
@@ -29,281 +29,75 @@ import CoreData
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// MARK: - CSError
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/**
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All errors thrown from CoreStore are expressed in `CSError`s.
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- SeeAlso: `CoreStoreError`
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*/
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@available(*, unavailable, message: "CoreStore Objective-C is now obsoleted in preparation for Swift concurrency.")
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@objc
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public final class CSError: NSError {
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/**
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The `NSError` error domain for `CSError`.
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- SeeAlso: `CoreStoreErrorErrorDomain`
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*/
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// MARK: Public
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@objc
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public static let errorDomain = CoreStoreErrorDomain
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public var bridgeToSwift: CoreStoreError {
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if let swift = self.swiftError {
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return swift
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}
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let swift = CoreStoreError(_bridgedNSError: self) ?? .unknown
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self.swiftError = swift
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return swift
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fatalError()
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}
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// MARK: NSObject
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public override var hash: Int {
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return self.bridgeToSwift.hashValue
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fatalError()
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}
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public override func isEqual(_ object: Any?) -> Bool {
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guard let object = object as? CSError else {
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return false
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}
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return self.bridgeToSwift == object.bridgeToSwift
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fatalError()
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}
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public override var description: String {
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return "(\(String(reflecting: Self.self))) \(self.bridgeToSwift.coreStoreDumpString)"
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fatalError()
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}
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/**
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Do not call directly!
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*/
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public init(_ swiftValue: CoreStoreError) {
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self.swiftError = swiftValue
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super.init(domain: CoreStoreError.errorDomain, code: swiftValue.errorCode, userInfo: swiftValue.errorUserInfo)
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fatalError()
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}
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public required init?(coder aDecoder: NSCoder) {
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super.init(coder: aDecoder)
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}
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// MARK: Private
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private var swiftError: CoreStoreError?
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}
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@available(*, deprecated, message: "CoreStore Objective-C API will be removed soon.")
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extension CSError: CoreStoreObjectiveCType {}
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fatalError()
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}
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}
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// MARK: - CSErrorCode
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/**
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The `NSError` error codes for `CSError.Domain`.
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- SeeAlso: `CSError`
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- SeeAlso: `CoreStoreError`
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*/
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@available(*, deprecated, message: "CoreStore Objective-C API will be removed soon.")
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@available(*, unavailable, message: "CoreStore Objective-C is now obsoleted in preparation for Swift concurrency.")
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@objc
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public enum CSErrorCode: Int {
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/**
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A failure occured because of an unknown error.
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*/
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case unknownError
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/**
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The `NSPersistentStore` could note be initialized because another store existed at the specified `NSURL`.
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*/
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case differentStorageExistsAtURL
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/**
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An `NSMappingModel` could not be found for a specific source and destination model versions.
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*/
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case mappingModelNotFound
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/**
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Progressive migrations are disabled for a store, but an `NSMappingModel` could not be found for a specific source and destination model versions.
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*/
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case progressiveMigrationRequired
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/**
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An internal SDK call failed with the specified "NSError" userInfo key.
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*/
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case internalError
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/**
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The transaction was terminated by a user-thrown error with the specified "Error" userInfo key.
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*/
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case userError
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/**
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The transaction was cancelled by the user.
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*/
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case userCancelled
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}
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// MARK: - CoreStoreError
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extension CoreStoreError: _ObjectiveCBridgeableError {
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// MARK: _ObjectiveCBridgeableError
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public init?(_bridgedNSError error: NSError) {
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guard error.domain == CoreStoreErrorDomain else {
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if error is CSError {
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self = .internalError(NSError: error)
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return
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}
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return nil
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}
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guard let code = CoreStoreErrorCode(rawValue: error.code) else {
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if error is CSError {
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self = .unknown
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return
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}
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return nil
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}
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let info = error.userInfo
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switch code {
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case .unknownError:
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self = .unknown
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case .differentStorageExistsAtURL:
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guard case let existingPersistentStoreURL as URL = info["existingPersistentStoreURL"] else {
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self = .unknown
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return
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}
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self = .differentStorageExistsAtURL(existingPersistentStoreURL: existingPersistentStoreURL)
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case .mappingModelNotFound:
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guard let localStoreURL = info["localStoreURL"] as? URL,
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let targetModel = info["targetModel"] as? NSManagedObjectModel,
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let targetModelVersion = info["targetModelVersion"] as? String else {
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self = .unknown
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return
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}
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self = .mappingModelNotFound(localStoreURL: localStoreURL, targetModel: targetModel, targetModelVersion: targetModelVersion)
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case .progressiveMigrationRequired:
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guard let localStoreURL = info["localStoreURL"] as? URL else {
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self = .unknown
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return
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}
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self = .progressiveMigrationRequired(localStoreURL: localStoreURL)
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case .asynchronousMigrationRequired:
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guard
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let localStoreURL = info["localStoreURL"] as? URL,
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case let nsError as NSError = info["NSError"]
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else {
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self = .unknown
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return
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}
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self = .asynchronousMigrationRequired(localStoreURL: localStoreURL, NSError: nsError)
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case .internalError:
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guard case let nsError as NSError = info["NSError"] else {
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self = .unknown
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return
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}
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self = .internalError(NSError: nsError)
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case .userError:
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guard case let error as Error = info["Error"] else {
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self = .unknown
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return
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}
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self = .userError(error: error)
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case .userCancelled:
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self = .userCancelled
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case .persistentStoreNotFound:
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guard let entity = info["entity"] as? DynamicObject.Type else {
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self = .unknown
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return
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}
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self = .persistentStoreNotFound(entity: entity)
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}
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}
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}
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// MARK: - Error
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extension Error {
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// MARK: Internal
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internal var bridgeToSwift: CoreStoreError {
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switch self {
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case let error as CoreStoreError:
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return error
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case let error as CSError:
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return error.bridgeToSwift
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case let error as NSError where Self.self is NSError.Type:
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return .internalError(NSError: error)
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default:
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return .unknown
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}
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}
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@available(*, deprecated, message: "CoreStore Objective-C API will be removed soon.")
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internal var bridgeToObjectiveC: NSError {
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switch self {
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case let error as CoreStoreError:
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return error.bridgeToObjectiveC
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case let error as CSError:
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return error
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default:
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return self as NSError
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}
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}
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}
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// MARK: - CoreStoreError
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@available(*, deprecated, message: "CoreStore Objective-C API will be removed soon.")
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@available(*, unavailable, message: "CoreStore Objective-C is now obsoleted in preparation for Swift concurrency.")
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extension CoreStoreError: CoreStoreSwiftType {
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// MARK: CoreStoreSwiftType
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public var bridgeToObjectiveC: CSError {
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return CSError(self)
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fatalError()
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}
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}
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