// Copyright (c) 2019, 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 The [&&] operator is now short-circuit in constant and potentially
/// constant expressions. It only attempts to evaluate the second operand if the
/// first operand evaluates to [true]. This makes [false && (null as
/// String).length] a valid constant expression. The second operand expression
/// still needs to be a potentially constant expression, which is a new use of
/// potentially constant expressions outside of [const] constructor initializer
/// lists.
/// @description Checks that compile error is thrown if the first [&&] operand is
/// [false] and the second one is not [bool] in the constant expression.
/// @author iarkh@unipro.ru


const String? nil = null;
const bool? b = null;

main() {
  const bool a1 = false && nil;
//                         ^
// [analyzer] unspecified
// [cfe] unspecified

  const bool a2 = false && 111;
//                         ^
// [analyzer] unspecified
// [cfe] unspecified

  const bool a3 = false && b;
//                         ^
// [analyzer] unspecified
// [cfe] unspecified
}