LanguageFeatures/nnbd/weak/boolean_conditional_evaluation_A02_t01.dart

/*
 * Copyright (c) 2021, 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 requirement that the condition in a boolean conditional
 * control expression (e.g. the a conditional statement, conditional element,
 * while loop, etc) be assignable to bool is unchanged from pre null-safe Dart.
 * The change in assignability means that the static type of the condition may
 * only be dynamic, Never, or bool
 *
 * @description Checks that the static type of the condition (in assignability)
 * may be dynamic, Never, or bool
 *
 * @author sgrekhov@unipro.ru
 */
// Requirements=nnbd-weak
import "../../../Utils/expect.dart";

Never foo() {
  throw "Never";
}

dynamic bar(x) => x;

main() {
  bool b = true;
  bool x = false;
  x = b;
  x = bar(true);
  Expect.throws(() {
    x = bar("Lily was here");
  });
  Expect.throws(() {
    x = foo();
  });
}