LanguageFeatures/Constant-update-2018/ShortCircuitOperators_A04_t05.dart

/*
 * 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 Finally, the conditional [?]/[:] operator only evaluates one of
 * its branches, depending on whether the condition expression evaluates to
 * [true] or [false]. The other branch must also be a potentially constant
 * expression.
 * @description Checks that conditional operator [?]/[:] rejects the first
 * operand if condition is [false] for constant expressions.
 * @author iarkh@unipro.ru
 */
// SharedOptions=--enable-experiment=constant-update-2018
import "../../Utils/expect.dart";

class MyClass {
  final int res;
  const MyClass() : res = (false ? (null as String).length > 0 : 125);
}

main() {
  const MyClass c1 = MyClass();
  Expect.equals(125, c1.res);

  const String str = false ? (null as String).length < 14 : "OK";
  Expect.equals("OK", str);

  const String str1 = false ? "wrong" : "OK";
  Expect.equals("OK", str1);
}