| // 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 The new rules are incorporated into the existing productions for |
| /// declaring variables like so: |
| /// |
| /// localVariableDeclaration ::= |
| /// | metadata initializedVariableDeclaration ';' // Existing. |
| /// | metadata patternVariableDeclaration ';' // New. |
| /// |
| /// forLoopParts ::= |
| /// | // Existing productions... |
| /// | metadata ( 'final' | 'var' ) outerPattern 'in' expression // New. |
| /// As with regular for-in loops, it is a compile-time error if the type of |
| /// expression in a pattern-for-in loop is not assignable to Iterable<dynamic>. |
| /// |
| /// @description Check that it is a compile-time error if the type of expression |
| /// in a pattern-for-in loop is not assignable to Iterable<dynamic>. |
| /// @author sgrekhov22@gmail.com |
| |
| import "patterns_lib.dart"; |
| |
| class Meta { |
| const Meta(); |
| } |
| |
| main() { |
| for (@Meta() final ((a1, b1) && r1) in (1, 2)) { |
| // ^^^^^^ |
| // [analyzer] unspecified |
| // [cfe] unspecified |
| } |
| for (@Meta() final {"key1": a3, "key2": b3} in {"key1": 1, "key2": 2}) { |
| // ^^^^^^^^^^^^^^^^^^^^^^ |
| // [analyzer] unspecified |
| // [cfe] unspecified |
| } |
| for (@Meta() var (a4, b4) in (1, 2)) { |
| // ^^^^^^ |
| // [analyzer] unspecified |
| // [cfe] unspecified |
| } |
| for (final (:num n1, :n2) in (n1: 3.14, n2: "pi")) { |
| // ^^^^^^^^^^^^^^^^^^^^ |
| // [analyzer] unspecified |
| // [cfe] unspecified |
| } |
| for (@Meta() var Square(areaAsInt: int a5, sizeAsInt: b5) in Square(1)) { |
| // ^^^^^^^^^ |
| // [analyzer] unspecified |
| // [cfe] unspecified |
| } |
| for (final Square(:int areaAsInt, :sizeAsInt) in Square(1)) { |
| // ^^^^^^^^^ |
| // [analyzer] unspecified |
| // [cfe] unspecified |
| } |
| } |
