/**
 * @flow
 */

var z: number = 123;

class A {}
class B extends A {}
class C extends A {}

type T = {
  get goodGetterWithAnnotation(): number,
  set goodSetterWithAnnotation(x: number): void,

  get propWithMatchingGetterAndSetter(): number,
  set propWithMatchingGetterAndSetter(x: number): void,

  // The getter and setter need not have the same type
  get propWithSubtypingGetterAndSetter(): ?number, // OK
  set propWithSubtypingGetterAndSetter(x: number): void,

  set propWithSubtypingGetterAndSetterReordered(x: number): void, // OK
  get propWithSubtypingGetterAndSetterReordered(): ?number,

  get exampleOfOrderOfGetterAndSetter(): A,
  set exampleOfOrderOfGetterAndSetter(x: B): void,

  set exampleOfOrderOfGetterAndSetterReordered(x: B): void,
  get exampleOfOrderOfGetterAndSetterReordered(): A,
};

function test(obj: T) {
  // Test getting properties with getters
  var testGetterNoError2: number = obj.goodGetterWithAnnotation;

  var testGetterWithError2: string = obj.goodGetterWithAnnotation; // Error number ~> string

  // Test setting properties with getters
  obj.goodSetterWithAnnotation = 123;

  obj.goodSetterWithAnnotation = "hello"; // Error string ~> number

  var testSubtypingGetterAndSetter: number = obj.propWithSubtypingGetterAndSetter; // Error ?number ~> number

  // When building this feature, it was tempting to flow the setter into the
  // getter and then use either the getter or setter as the type of the
  // property. This example shows the danger of using the getter's type
  obj.exampleOfOrderOfGetterAndSetter = new C(); // Error C ~> B

  // And this example shows the danger of using the setter's type.
  var testExampleOrOrderOfGetterAndSetterReordered: number =
    obj.exampleOfOrderOfGetterAndSetterReordered; // Error A ~> B
}