// RUN: %target-swift-frontend(mock-sdk: %clang-importer-sdk) -typecheck -I %S/Inputs/custom-modules %s -verify -strict-concurrency=complete -parse-as-library

// REQUIRES: objc_interop
// REQUIRES: concurrency
// REQUIRES: asserts

import Foundation
import ObjCConcurrency

// expected-note@+1 2{{add '@MainActor' to make global function 'unsatisfiedPreconcurrencyIsolation(view:)' part of global actor 'MainActor'}}
func unsatisfiedPreconcurrencyIsolation(view: MyView) {
  // expected-warning@+1 {{call to main actor-isolated instance method 'display()' in a synchronous nonisolated context}}
  view.display()

  // expected-warning@+1 {{main actor-isolated property 'isVisible' can not be referenced from a nonisolated context}}
  _ = view.isVisible
}

@preconcurrency @MainActor
class IsolatedSub: NXSender {
  var mainActorState = 0 // expected-note {{property declared here}}
  override func sendAny(_: any Sendable) -> any Sendable {
    return mainActorState
    // expected-warning@-1 {{main actor-isolated property 'mainActorState' can not be referenced from a nonisolated context}}
  }

  @MainActor
  override func sendOptionalAny(_: (any Sendable)?) -> (any Sendable)? {
    // expected-warning@-1 {{main actor-isolated instance method 'sendOptionalAny' has different actor isolation from nonisolated overridden declaration; this is an error in the Swift 6 language mode}}

    return mainActorState
  }
}

class NotSendable {}

@MainActor
class NSObjectInitOverride: NSObject {
  var ns: NotSendable

  override init() {
    self.ns = NotSendable()
    super.init()
  }
}


@objc
@MainActor
class Test : NSObject {
  static var shared: Test?

  override init() {
    super.init()

    Self.shared = self
  }
}