mirror of
https://github.com/google/promises
synced 2026-11-09 22:26:00 +05:45
75 lines
2.1 KiB
Swift
75 lines
2.1 KiB
Swift
// Copyright 2018 Google Inc. All rights reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at:
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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import Foundation
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/// Namespace for test helpers.
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public struct Test {
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/// Executes `work` after a time `interval` on the main queue.
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public static func delay(_ interval: TimeInterval, work: @escaping () -> Void) {
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DispatchQueue.main.asyncAfter(deadline: .now() + interval) {
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work()
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}
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}
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// Phony errors.
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public enum Error: Int, CustomNSError {
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case code13 = 13
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case code42 = 42
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public static var errorDomain: String {
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return "com.google.Promises.Test.Error"
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}
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public var errorCode: Int { return rawValue }
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public var errorUserInfo: [String: Any] { return [:] }
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}
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}
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/// Convenience `NSError` accessors for `Error` protocol.
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public extension Error {
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var domain: String { return (self as NSError).domain }
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var code: Int { return (self as NSError).code }
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var userInfo: [AnyHashable: Any] { return (self as NSError).userInfo }
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}
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/// Compare two `Error?`.
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public func == (lhs: Error?, rhs: Error?) -> Bool {
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switch (lhs, rhs) {
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case (nil, nil):
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return true
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case (nil, _?), (_?, nil):
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return false
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case let (lhs?, rhs?):
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return (lhs as NSError).isEqual(rhs as NSError)
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}
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}
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public func != (lhs: Error?, rhs: Error?) -> Bool {
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return !(lhs == rhs)
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}
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/// Compare two arrays of the same generic type conforming to `Equatable` protocol.
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public func == <T: Equatable>(lhs: [T?], rhs: [T?]) -> Bool {
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if lhs.count != rhs.count { return false }
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for (l, r) in zip(lhs, rhs) where l != r { return false }
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return true
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}
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public func != <T: Equatable>(lhs: [T?], rhs: [T?]) -> Bool {
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return !(lhs == rhs)
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}
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