swift-argument-parser/Tests/ArgumentParserUnitTests/SendableTests.swift

//===----------------------------------------------------------------------===//
//
// This source file is part of the Swift Argument Parser open source project
//
// Copyright (c) 2023 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
//
//===----------------------------------------------------------------------===//

import XCTest

@testable import ArgumentParser

final class SendableTests: XCTestCase {}

extension SendableTests {
  struct MyExpressibleType: ExpressibleByArgument {
    public init?(argument: String) {}
  }

  final class SendableClassType: Sendable {
    init(_: String) {}
  }

  final class NonSendableClassType {
    init() {}
  }

  static func transformFactory(
    _ value: @autoclosure () -> NonSendableClassType
  ) -> @Sendable (String) -> SendableClassType {
    { SendableClassType($0) }
  }

  struct Foo: ParsableArguments, Sendable {
    @Flag()
    var foo: Bool = false

    @Option()
    var custom: MyExpressibleType?

    @Option(transform: { SendableClassType($0) })
    var transformed1: SendableClassType

    @Option(transform: transformFactory(NonSendableClassType()))
    var transformed2: SendableClassType

    @Argument()
    var arg: [MyExpressibleType]
  }

  struct Bar: ParsableCommand, Sendable {
    @OptionGroup
    var foo: Foo
  }

  struct Baz: AsyncParsableCommand, Sendable {
    @OptionGroup
    var bar: Foo
  }
}