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//
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// RouteComposer
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// NilFinder.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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/// Dummy struct used to represent that nothing should be found in a view controller stack
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/// and a `UIViewController` should always be created from scratch.
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/// Its only purpose is to provide type safety checks for `StepAssembly`.
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///
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/// For example, `UIViewController` of this step was already loaded and integrated into a stack by a storyboard.
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public struct NilFinder<VC: UIViewController, C>: Finder, 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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/// `Finder` method empty implementation.
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///
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/// - Parameter context: A context instance provided.
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/// - Returns: always `nil`.
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public func findViewController(with context: C) throws -> VC? {
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nil
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}
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}
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