| // Copyright (c) 2023, 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 rule for <extensionTypeDeclaration> is added to the grammar, |
| /// along with some rules for elements used in extension type declarations: |
| /// |
| /// <extensionTypeDeclaration> ::= |
| /// 'extension' 'type' 'const'? <typeIdentifier> <typeParameters>? |
| /// <representationDeclaration> <interfaces>? |
| /// '{' |
| /// (<metadata> <extensionTypeMemberDeclaration>)* |
| /// '}' |
| /// |
| /// <representationDeclaration> ::= |
| /// ('.' <identifierOrNew>)? '(' <metadata> <type> <identifier> ')' |
| /// |
| /// <identifierOrNew> ::= <identifier> | 'new' |
| /// |
| /// <extensionTypeMemberDeclaration> ::= <classMemberDefinition> |
| /// |
| /// The token `type` is not made a built-in identifier: the built-in identifier |
| /// extension that occurs right before type serves to disambiguate the extension |
| /// type declaration with a fixed lookahead. |
| /// |
| /// @description Checks that it is not an error to import a library with |
| /// import prefix `type` |
| /// @author sgrekhov22@gmail.com |
| |
| import "extension_type_lib.dart" as type; |
| |
| main() { |
| print(type.x); |
| } |
