LanguageFeatures/Abstract-external-fields/static_analysis_external_A03_t03.dart

/*
 * Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
 * for details. All rights reserved. Use of this source code is governed by a
 * BSD-style license that can be found in the LICENSE file.
 */
/**
 * @assertion An external variable declaration D is treated as an external
 * getter declaration and possibly an external setter declaration. The setter is
 * included if and only if D is non-final. The return type of the getter and the
 * parameter type of the setter, if present, is the type of D (which may be
 * declared explicitly, obtained by override inference, or defaulted to dynamic).
 * The parameter of the setter, if present, has the modifier covariant if and
 * only if D has the modifier covariant (the grammar only allows this modifier
 * on external instance variables).
 *
 * @description Checks that declaration
 *  class A {
 *    external var i1;
 * desugared as
 *  class A {
 *    external dynamic get i1;
 *    external void set i1(dynamic _);
 * @author sgrekhov@unipro.ru
 * @issue 44148
 */
import "../../Utils/expect.dart";

class A {
  external int i1;
  external var i2;

  test() {
    Expect.throws(() { i1;}, (e) => e is NoSuchMethodError);
    Expect.throws(() { i2;}, (e) => e is NoSuchMethodError);
    Expect.throws(() { i1 = 42;}, (e) => e is NoSuchMethodError);
    Expect.throws(() { i2 = 42;}, (e) => e is NoSuchMethodError);
  }
}

main() {
  new A().test();
}