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Pods/PromisesSwift/Sources/Promises/Promise+Timeout.swift

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+// Copyright 2018 Google Inc. All rights reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at:
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+import Foundation
+
+public extension Promise {
+
+  /// Waits on a promise for a given interval or rejects the promise if it exceeds the time limit.
+  /// - parameters:
+  ///   - queue: A queue to dispatch on.
+  ///   - interval: Time to wait in seconds.
+  /// - returns: A new pending promise that gets either resolved with same resolution as `self` or
+  ///            rejected with `PromiseError.timedOut` error.
+  @discardableResult
+  func timeout(on queue: DispatchQueue = .promises, _ interval: TimeInterval) -> Promise {
+    let promise = Promise(objCPromise.__onQueue(queue, timeout: interval))
+    // Keep Swift wrapper alive for chained promise until `ObjCPromise` counterpart is resolved.
+    objCPromise.__addPendingObject(promise)
+    return promise
+  }
+}