| /* |

| * 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, we define inference on a setOrMapLiteral collection as |

| * follows: |

| * ... |

| * Otherwise, collection is still ambiguous, the downwards context for the |

| * elements of collection is ?, and the disambiguation is done using the |

| * immediate elements of collection as follows: |

| * ... |

| * If all elements can be a map, and at least one element must be a map, then e |

| * is a map literal with static type Map<K, V> where K is the least upper bound |

| * of the key types of the elements and V is the least upper bound of the value |

| * types. |

| * |

| * @description Checks that if all elements can be a map, and at least one |

| * element must be a map, then e is a map literal with static type Map<K, V> |

| * where K is the least upper bound of the key types of the elements and V is |

| * the least upper bound of the value types. |

| * @author sgrekhov@unipro.ru |

| */ |

| import "../../Utils/expect.dart"; |

| |

| main() { |

| dynamic d1 = 1; |

| dynamic d2 = 2; |

| var m = {d1: d2, 3: 4}; |

| Expect.isTrue(m is Map<dynamic, dynamic>); |

| Expect.isFalse(m is Map<int, int>); |

| } |