Language/Statements/Switch/labels_constants_t03.dart

// 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.

// @dart = 2.9

/// @assertion Given a switch statement of the form
/// switch (e) {
///   label11 … label1j1 case e1: s1
/// …
///   labeln1 ..labelnjn case en: sn
///   label(n+1)1 ..label(n+1)jn default: sn+1
/// }
/// or the form
/// switch (e) {
///   label11 … label1j1 case e1: s1
/// …
///   labeln1 ..labelnjn case en: sn
/// }
/// it is a compile-time error if the expressions ek are not compile-time
/// constants for all k = 1..n.
/// @description Checks that it is not a compile-time error if a case expression
/// is null.
/// @author msyabro
/// @reviewer rodionov


main() {
  try {
    switch (null) {
      case null:
    }
  } catch (e) {}
}