| // Copyright (c) 2022, 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 objectPattern ::= typeName typeArguments? '(' patternFields? ')' |
| /// ... |
| /// As with record patterns, the getter name can be omitted and inferred from |
| /// the variable pattern in the field subpattern which may be wrapped in a unary |
| /// pattern |
| /// |
| /// @description Checks that it is a compile-time error if an object pattern |
| /// with omitted getter name have subpatterns other than variable, cast or null |
| /// check/assert. Test a switch statement |
| /// @author sgrekhov22@gmail.com |
| |
| import "patterns_lib.dart"; |
| |
| String test(Shape shape) { |
| switch (shape) { |
| case Rectangle(:var areaAsInt || var areaAsInt): return "logical-or"; |
| // ^^^^^^^^^^^^^^^^ |
| // [analyzer] unspecified |
| // [cfe] unspecified |
| case Rectangle(:final areaAsInt && int sizeAsInt): return "logical-and"; |
| // ^^^^^^^^^^^^^^^^ |
| // [analyzer] unspecified |
| // [cfe] unspecified |
| case Rectangle(: > 5): return "relational"; |
| // ^ |
| // [analyzer] unspecified |
| // [cfe] unspecified |
| case Square(: 42): return "constant"; |
| // ^^ |
| // [analyzer] unspecified |
| // [cfe] unspecified |
| case Rectangle(: [var areaAsList]): return "list"; |
| // ^ |
| // [analyzer] unspecified |
| // [cfe] unspecified |
| case Rectangle(: {"area": var m1}): return "map"; |
| // ^ |
| // [analyzer] unspecified |
| // [cfe] unspecified |
| case Rectangle(: (area: var areaAsRecord)): return "record"; |
| // ^ |
| // [analyzer] unspecified |
| // [cfe] unspecified |
| case Square(: Unit(value: var area)): return "object"; |
| // ^ |
| // [analyzer] unspecified |
| // [cfe] unspecified |
| default: |
| return "default"; |
| } |
| } |
| |
| main() { |
| test(Rectangle(1, 4)); |
| } |
