// Copyright (c) 2011, 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 A constant expression is an expression whose value can never
 * change, and that can be evaluated entirely at compile time.
 * A constant expression is one of the following:
 * . . .
 * • An expression of the form e1?e2:e3 where where e1, e2 and e3 are constant
 *   expressions and e1 evaluates to a boolean value.
 * @description Checks that if e1 does not evaluate to boolean then conditional
 * expression is not a constant expression.
 * @compile-error
 * @author ilya
 */

const x = true;
const y = null ? true : 1;

main() {
  y;
}