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//
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// RouteComposer
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// NilFactory.swift
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// https://github.com/ekazaev/route-composer
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//
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// Created by Eugene Kazaev in 2018-2022.
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// Distributed under the MIT license.
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//
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// Become a sponsor:
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// https://github.com/sponsors/ekazaev
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//
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import Foundation
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import UIKit
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/// The dummy struct used to represent the `Factory` that does not build anything.
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/// Its only purpose is to provide the type safety checks for the `StepAssembly`.
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///
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/// For example, the `UIViewController` of the step was already loaded and integrated into a stack by a
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/// storyboard in a previous step.
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public struct NilFactory<VC: UIViewController, C>: Factory, NilEntity {
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// MARK: Associated types
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public typealias ViewController = VC
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public typealias Context = C
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// MARK: Methods
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/// Constructor
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public init() {}
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public func prepare(with context: C) throws {
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throw RoutingError.compositionFailed(.init("This factory can not build any UIViewController."))
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}
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public func build(with context: C) throws -> VC {
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throw RoutingError.compositionFailed(.init("This factory can not build any UIViewController."))
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}
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}
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