| // Copyright (c) 2018, 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 token following a question mark dictates whether it's part of |
| /// a null-aware operation or the beginning of a new expression. |
| /// |
| /// @description Checks usage of a null-aware expression when a set literal is |
| /// declared. |
| /// @author sgrekhov@unipro.ru |
| /// @issue 48004 |
| |
| import "../../Utils/expect.dart"; |
| |
| class C { |
| var n1 = 1 as int?; |
| static var n2 = 2 as int?; |
| int? x = null; |
| } |
| |
| main() { |
| C? cn = null; |
| |
| var v1 = {cn?.x ?? 3, C?.n2, cn?.n1}; |
| // ^^ |
| // [analyzer] STATIC_WARNING.INVALID_NULL_AWARE_OPERATOR |
| // ^ |
| // [cfe] The class 'C' cannot be null. |
| Expect.isTrue(v1 is Set); |
| Expect.runtimeIsType<Set>(v1); |
| Expect.iterableEquals({3, 2, null}, v1); |
| |
| var c = C() as C?; |
| |
| var v2 = {c?.x ?? 3, C?.n2, c?.n1}; |
| // ^^ |
| // [analyzer] STATIC_WARNING.INVALID_NULL_AWARE_OPERATOR |
| // ^ |
| // [cfe] The class 'C' cannot be null. |
| Expect.isTrue(v2 is Set); |
| Expect.runtimeIsType<Set>(v2); |
| Expect.iterableEquals({3, 2, 1}, v2); |
| |
| var v3 = <int?>{c?.x ?? 3, C?.n2, c?.n1}; |
| // ^^ |
| // [analyzer] STATIC_WARNING.INVALID_NULL_AWARE_OPERATOR |
| // ^ |
| // [cfe] The class 'C' cannot be null. |
| Expect.isTrue(v3 is Set); |
| Expect.runtimeIsType<Set>(v3); |
| Expect.iterableEquals({3, 2, 1}, v3); |
| |
| var v4 = <int?>{c?.n1 ??= (c as C).x, c?.x ??= 4, C?.n2, c?.x ?? 3}; |
| // ^^ |
| // [analyzer] STATIC_WARNING.INVALID_NULL_AWARE_OPERATOR |
| // ^ |
| // [cfe] The class 'C' cannot be null. |
| Expect.isTrue(v4 is Set); |
| Expect.runtimeIsType<Set>(v4); |
| Expect.iterableEquals({1, 4, 2}, v4); |
| } |