| // 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 A null-shorting cascade expression e?..s translates as follows, |
| /// where x and y are fresh object level variables. |
| /// fn[k : Exp -> Exp] : Exp => |
| /// let x = EXP(e) in x == null ? null : let y = EXP(x.s) in k(x) |
| /// |
| /// @description Check that a null-shorting cascade expression e?..s translates |
| /// as follows, where x and y are fresh object level variables. |
| /// fn[k : Exp -> Exp] : Exp => |
| /// let x = EXP(e) in x == null ? null : let y = EXP(x.s) in k(x) |
| /// Test legacy pre-NNBD types |
| /// @author sgrekhov@unipro.ru |
| /// @issue 40959 |
| |
| // Requirements=nnbd-weak |
| import "../../../Utils/expect.dart"; |
| import "legacy_lib.dart"; |
| |
| main() { |
| A a1 = new A(); |
| |
| var actual1 = a1 ?.. test(); |
| // ^^^ |
| // [analyzer] STATIC_WARNING.INVALID_NULL_AWARE_OPERATOR |
| // ^ |
| // [cfe] Operand of null-aware operation '?..' has type 'A' which excludes null. |
| var expected = a1; |
| Expect.equals(expected, actual1); |
| Expect.equals("test() called 1 times, text2 called 0 times", a1.log); |
| |
| var actual2 = a1 ?.. text2; |
| // ^^^ |
| // [analyzer] STATIC_WARNING.INVALID_NULL_AWARE_OPERATOR |
| // ^ |
| // [cfe] Operand of null-aware operation '?..' has type 'A' which excludes null. |
| Expect.equals(expected, actual2); |
| Expect.equals("test() called 1 times, text2 called 1 times", a1.log); |
| |
| var actual3 = a1 |
| // ^ |
| // [cfe] Operand of null-aware operation '?..' has type 'A' which excludes null. |
| ?.. test() |
| // ^^^ |
| // [analyzer] STATIC_WARNING.INVALID_NULL_AWARE_OPERATOR |
| .. text2; |
| Expect.equals(expected, actual3); |
| Expect.equals("test() called 2 times, text2 called 2 times", a1.log); |
| |
| A? a2 = null; |
| var actual4 = a2 ?.. test(); |
| Expect.isNull(actual4); |
| |
| var actual5 = a2 ?.. text2; |
| Expect.isNull(actual5); |
| |
| var actual6 = a2 |
| ?.. test() |
| .. text2; |
| Expect.isNull(actual6); |
| |
| a2 = new A(); |
| var actual7 = a2 ?.. test(); |
| // ^^^ |
| // [analyzer] STATIC_WARNING.INVALID_NULL_AWARE_OPERATOR |
| // ^ |
| // [cfe] Operand of null-aware operation '?..' has type 'A' which excludes null. |
| var expected2 = a2; |
| Expect.equals(expected2, actual7); |
| Expect.equals("test() called 1 times, text2 called 0 times", a2?.log); |
| // ^^ |
| // [analyzer] STATIC_WARNING.INVALID_NULL_AWARE_OPERATOR |
| // ^ |
| // [cfe] Operand of null-aware operation '?.' has type 'A' which excludes null. |
| |
| var actual8 = a2 ?.. text2; |
| // ^^^ |
| // [analyzer] STATIC_WARNING.INVALID_NULL_AWARE_OPERATOR |
| // ^ |
| // [cfe] Operand of null-aware operation '?..' has type 'A' which excludes null. |
| Expect.equals(expected2, actual8); |
| Expect.equals("test() called 1 times, text2 called 1 times", a2?.log); |
| // ^^ |
| // [analyzer] STATIC_WARNING.INVALID_NULL_AWARE_OPERATOR |
| // ^ |
| // [cfe] Operand of null-aware operation '?.' has type 'A' which excludes null. |
| |
| var actual9 = a2 |
| // ^ |
| // [cfe] Operand of null-aware operation '?..' has type 'A' which excludes null. |
| ?.. test() |
| // ^^^ |
| // [analyzer] STATIC_WARNING.INVALID_NULL_AWARE_OPERATOR |
| .. text2; |
| Expect.equals(expected2, actual9); |
| Expect.equals("test() called 2 times, text2 called 2 times", a2?.log); |
| // ^^ |
| // [analyzer] STATIC_WARNING.INVALID_NULL_AWARE_OPERATOR |
| // ^ |
| // [cfe] Operand of null-aware operation '?.' has type 'A' which excludes null. |
| |
| } |