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‎.swiftpm/xcode/package.xcworkspace/contents.xcworkspacedata‎

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‎.swiftpm/xcode/package.xcworkspace/xcuserdata/leif.xcuserdatad/UserInterfaceState.xcuserstate‎

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‎.swiftpm/xcode/xcuserdata/leif.xcuserdatad/xcschemes/xcschememanagement.plist‎

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<?xml version="1.0" encoding="UTF-8"?>
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<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
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<plist version="1.0">
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<dict>
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<key>SchemeUserState</key>
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<dict>
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<key>ScreenDataNavigation.xcscheme_^#shared#^_</key>
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<dict>
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<key>orderHint</key>
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<integer>0</integer>
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</dict>
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</dict>
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<key>SuppressBuildableAutocreation</key>
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<dict>
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<key>ScreenDataNavigation</key>
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<dict>
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<key>primary</key>
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<true/>
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</dict>
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<key>ScreenDataNavigationTests</key>
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<dict>
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<key>primary</key>
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<true/>
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</dict>
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</dict>
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</dict>
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</plist>

‎Package.swift‎

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// swift-tools-version:5.3
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// The swift-tools-version declares the minimum version of Swift required to build this package.
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import PackageDescription
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let package = Package(
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name: "ScreenDataNavigation",
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platforms: [
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.iOS(.v13),
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.macOS(.v10_15)
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],
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products: [
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// Products define the executables and libraries a package produces, and make them visible to other packages.
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.library(
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name: "ScreenDataNavigation",
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targets: ["ScreenDataNavigation"]),
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],
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dependencies: [
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// Dependencies declare other packages that this package depends on.
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// .package(url: /* package url */, from: "1.0.0"),
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.package(name: "ScreenData", url: "https://github.com/ServerDriven/ScreenData-swift", .branch("main"))
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],
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targets: [
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// Targets are the basic building blocks of a package. A target can define a module or a test suite.
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// Targets can depend on other targets in this package, and on products in packages this package depends on.
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.target(
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name: "ScreenDataNavigation",
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dependencies: [
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"ScreenData"
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]),
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.testTarget(
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name: "ScreenDataNavigationTests",
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dependencies: [
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"ScreenDataNavigation",
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"ScreenData"
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]),
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]
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)

‎README.md‎

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# ScreenDataNavigation
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Handling ScreenData's Destinations

‎Sources/ScreenDataNavigation/ScreenDataNavigation.swift‎

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import ScreenData
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import Combine
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import Foundation
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// MARK: ScreenProviding
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public protocol ScreenProviding {
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func screen(forID id: String) -> Future<SomeScreen, Error>
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}
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// MARK: ScreenProviding Basic Implementation
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public struct MockScreenProvider: ScreenProviding {
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public var mockScreen: SomeScreen
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public init(mockScreen: SomeScreen) {
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self.mockScreen = mockScreen
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}
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public func screen(forID id: String) -> Future<SomeScreen, Error> {
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Future { promise in
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var screen = mockScreen
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screen.id = id
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promise(.success(screen))
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}
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}
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}
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public struct URLScreenProvider: ScreenProviding {
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public enum URLScreenProviderError: Error {
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case noResponse
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case noData
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}
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public var baseURL: URL
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public init(baseURL: URL) {
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self.baseURL = baseURL
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}
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public func screen(forID id: String) -> Future<SomeScreen, Error> {
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Future { promise in
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URLSession.shared.dataTask(with: baseURL.appendingPathComponent(id)) { (data, response, error) in
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if let error = error {
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promise(.failure(error))
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}
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guard let _ = response else {
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promise(.failure(URLScreenProviderError.noResponse))
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return
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}
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guard let data = data else {
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promise(.failure(URLScreenProviderError.noData))
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return
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}
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do {
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promise(.success(try JSONDecoder().decode(SomeScreen.self, from: data)))
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} catch {
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promise(.failure(error))
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}
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}
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}
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}
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}
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public struct UserDefaultScreenProvider: ScreenProviding {
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public enum UserDefaultScreenProviderError: Error {
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case noData
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}
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public var baseKey: String
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public init(baseKey: String) {
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self.baseKey = baseKey
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}
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public func screen(forID id: String) -> Future<SomeScreen, Error> {
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Future { promise in
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guard let data = UserDefaults.standard.data(forKey: baseKey + id) else {
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promise(.failure(UserDefaultScreenProviderError.noData))
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return
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}
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do {
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promise(.success(try JSONDecoder().decode(SomeScreen.self, from: data)))
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} catch {
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promise(.failure(error))
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}
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}
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}
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}
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// MARK: ScreenStoring
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public protocol ScreenStoring {
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func store(screens: [SomeScreen]) -> Future<Void, Error>
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}
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// MARK: ScreenStoring Basic Implementation
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public struct UserDefaultScreenStorer: ScreenStoring {
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public var baseKey: String
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public init(baseKey: String) {
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self.baseKey = baseKey
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}
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public func store(screens: [SomeScreen]) -> Future<Void, Error> {
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Future { promise in
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do {
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try screens.forEach { screen in
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let data = try JSONEncoder().encode(screen)
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let key = baseKey + (screen.id ?? "")
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UserDefaults.standard.set(data,
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forKey: key)
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}
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promise(.success(()))
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} catch {
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promise(.failure(error))
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}
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}
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}
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}
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// MARK: ScreenLoading
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public protocol ScreenLoading {
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func load(withProvider provider: ScreenProviding) -> Future<[SomeScreen], Error>
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}
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// MARK: ScreenLoading Basic Implementation [WIP]
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//
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//extension SomeScreen: ScreenLoading {
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//
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// func load(withProvider provider: ScreenProviding) -> Future<[SomeScreen], Error> {
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// Future { promise in
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// let headerViewDestinations = headerView?.destinations ?? []
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// let footerViewDestinations = footerView?.destinations ?? []
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// let destinations = headerViewDestinations +
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// someView.destinations +
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// footerViewDestinations
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//
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// let task = Publishers.MergeMany(
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// destinations.filter { destination in
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// destination.type == .screen
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// }
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// .map { destination in
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// provider.screen(forID: destination.toID).eraseToAnyPublisher()
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// }
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// .publisher
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// .collect()
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// )
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//
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//
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//
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//
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// }
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// }
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//}
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public extension SomeView {
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var destinations: [Destination] {
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guard let container = container else {
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if let someLabel = someLabel,
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let destination = someLabel.destination {
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return [destination]
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} else if let someImage = someImage,
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let destination = someImage.destination {
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return [destination]
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} else if let someLabeledImage = someLabeledImage {
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return [someLabeledImage.destination,
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someLabeledImage.someImage.destination]
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.compactMap { $0 }
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} else if let someCustomView = someCustomView {
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let destinations = [someCustomView.destination,
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someCustomView.someImage?.destination]
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.compactMap { $0 }
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let subViewDestinations = someCustomView.views
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.map(\.destinations)
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.reduce([], +)
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return destinations + subViewDestinations
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}
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return []
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}
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return container.views
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.map(\.destinations)
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.reduce([], +)
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}
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}
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public extension SomeScreen {
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var destinations: [Destination] {
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let headerViewDestinations = headerView?.destinations ?? []
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let footerViewDestinations = footerView?.destinations ?? []
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return headerViewDestinations +
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someView.destinations +
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footerViewDestinations
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}
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}

‎Tests/LinuxMain.swift‎

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import XCTest
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import ScreenDataNavigationTests
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var tests = [XCTestCaseEntry]()
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tests += ScreenDataNavigationTests.allTests()
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XCTMain(tests)

‎Tests/ScreenDataNavigationTests/ScreenDataNavigationTests.swift‎

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import XCTest
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import ScreenData
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@testable import ScreenDataNavigation
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final class ScreenDataNavigationTests: XCTestCase {
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func testExample() {
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let destinations = [
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Destination(type: .url, toID: "https://github.com/ServerDriven/ScreenData"),
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Destination(type: .screen, toID: "/some/data/5")
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]
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let screen = SomeScreen(title: "Title",
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subtitle: nil,
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backgroundColor: SomeColor(red: 0, green: 0, blue: 0),
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headerView: SomeView(type: .container, container: SomeContainerView(axis: .vertical, views: [
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SomeView(type: .label, someLabel: SomeLabel(title: "Hello World", subtitle: nil, style: nil, destination: Destination(type: .url, toID: "https://github.com/ServerDriven/ScreenData")))
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], style: nil)),
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someView: SomeView(type: .label, someLabel: SomeLabel(title: "Hello World", subtitle: nil, style: nil, destination: Destination(type: .screen, toID: "/some/data/5"))))
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XCTAssertEqual(destinations.map { $0.toID },
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screen.destinations.map { $0.toID })
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}
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static var allTests = [
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("testExample", testExample),
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]
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}

‎Tests/ScreenDataNavigationTests/XCTestManifests.swift‎

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import XCTest
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#if !canImport(ObjectiveC)
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public func allTests() -> [XCTestCaseEntry] {
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return [
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testCase(ScreenDataNavigationTests.allTests),
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]
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}
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#endif

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