Add Optional.unwrap

1 files changed, 23 insertions, 0 deletions

diff --git a/ios/MullvadVPN/Optional+Unwrap.swift b/ios/MullvadVPN/Optional+Unwrap.swift
new file mode 100644
index 0000000000..80698c5e94
--- /dev/null
+++ b/ios/MullvadVPN/Optional+Unwrap.swift
@@ -0,0 +1,23 @@
+
+//
+//  Optional+Unwrap.swift
+//  MullvadVPN
+//
+//  Created by pronebird on 02/05/2019.
+//  Copyright © 2019 Amagicom AB. All rights reserved.
+//
+
+import Foundation
+
+class NilUnwrapError: Error {}
+
+extension Optional {
+    func unwrap() throws -> Wrapped {
+        switch self {
+        case .some(let value):
+            return value
+        case .none:
+            throw NilUnwrapError()
+        }
+    }
+}