sdk/tests/language/checked_setter_test.dart

// Copyright (c) 2013, 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.

// Test that implicit setters in checked mode do a type check.

import "package:expect/expect.dart";

class A {
  C c;
}

class B extends A {
}

class C {
}

var array = [new B()];

main() {
  array[0].c = new C();
  bool inCheckedMode = false;
  try {
    String a = 42;
  } catch (e) {
    inCheckedMode = true;
  }
  if (inCheckedMode) {
    Expect.throws(() => array[0].c = new B(), (e) => e is TypeError);
  }
}