File: XcodeRequirement.swift

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/*
 This source file is part of the Swift.org open source project

 Copyright (c) 2021-2024 Apple Inc. and the Swift project authors
 Licensed under Apache License v2.0 with Runtime Library Exception

 See https://swift.org/LICENSE.txt for license information
 See https://swift.org/CONTRIBUTORS.txt for Swift project authors
*/

import Foundation
import Markdown

/**
 An informal Xcode requirement for completing an instructional ``Tutorial``.
 */
public final class XcodeRequirement: Semantic, AutomaticDirectiveConvertible {
    public static let introducedVersion = "5.5"
    public let originalMarkup: BlockDirective
    
    /// Human readable title.
    @DirectiveArgumentWrapped
    public private(set) var title: String
    
    /// Domain where requirement applies.
    @DirectiveArgumentWrapped
    public private(set) var destination: URL
    
    static var keyPaths: [String : AnyKeyPath] = [
        "title"         : \XcodeRequirement._title,
        "destination"   : \XcodeRequirement._destination,
    ]
    
    @available(*, deprecated, message: "Do not call directly. Required for 'AutomaticDirectiveConvertible'.")
    init(originalMarkup: BlockDirective) {
        self.originalMarkup = originalMarkup
    }
    
    public override func accept<V: SemanticVisitor>(_ visitor: inout V) -> V.Result {
        return visitor.visitXcodeRequirement(self)
    }
}