| // Copyright (c) 2011, 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 It is a compile-time error if there is more than one entity
|
| * with the same name declared in the same scope.
|
| * Dart is lexically scoped. Scopes may nest. A name or declaration d is
|
| * available in scope S if d is in the namespace induced by S or if d is
|
| * available in the lexically enclosing scope of S. We say that a name or
|
| * declaration d is in scope if d is available in the current scope.
|
| * @description Checks that it is a compile-time error if a typedef declaration
|
| * declares two identically named optional parameters.
|
| * @compile-error
|
| * @author iefremov
|
| */
|
|
|
| typedef f([x, x]);
|
|
|
| main() {
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| (([x, xx]) {}) is f;
|
| }
|
