| /* |
| * 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 A required formal parameter may be specied in one of three ways: |
| * |
| * By means of a function signature that names the parameter and describes |
| * its type as a function type. It is a compile-time error if any default |
| * values are specied in the signature of such a function type. |
| * As an initializing formal, which is only valid as a parameter to a |
| * generative constructor. |
| * Via an ordinary variable declaration |
| * |
| * normalFormalParameter: |
| * functionSignature | |
| * fieldFormalParameter | |
| * simpleFormalParameter |
| * ; |
| * simpleFormalParameter: |
| * declaredIdentifier | |
| * metadata identifier |
| * ; |
| * fieldFormalParameter: |
| * metadata finalConstVarOrType? this '.' identifier formalParameterList? |
| * ; |
| * @description Checks that it is a compile-error if required parameter is |
| * declared as const |
| * @compile-error |
| * @author msyabro |
| * @reviewer iefremov |
| * @reviewer rodionov |
| */ |
| |
| func(const x) { |
| x = 1; |
| } |
| |
| main() { |
| try { |
| func(1); |
| } catch(e) {} |
| } |
