| /* | |
| * 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 Every function includes a formal parameter list, which consists | |
| * of a list of required parameters, followed by any optional parameters. | |
| * The optional parameters may be specified either as a set of named parameters | |
| * or as a list of positional parameters, but not both. | |
| * formalParameterList: | |
| * '(' ')' | | |
| * '('normalFormalParameters(',' optionalFormalParameters)?')' | | |
| * '('optionalFormalParameters')' | |
| * ; | |
| * normalFormalParameters: | |
| * normalFormalParameter(',' normalFormalParameter)* | |
| * ; | |
| * optionalFormalParameters: | |
| * optionalPositionalFormalParameters | | |
| * namedFormalParameters | |
| * ; | |
| * optionalPositionalFormalParameters: | |
| * `['defaultFormalParameter(`,' defaultFormalParameter)*`]' | |
| * ; | |
| * namedFormalParameters: | |
| * `{'defaultNamedParameter(`,' defaultNamedParameter)*`}' | |
| * ; | |
| * @description Checks that it is a compile-time error when both named and | |
| * optional positional parameters are present in one function declaration. | |
| * @compile-error | |
| * @author rodionov | |
| */ | |
| void f(var a, {var b}, [var c]) {} | |
| main () { | |
| f(1); | |
| } |