Language/Statements/For/syntax_t20.dart

// 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.

// @dart = 2.9

/// @assertion The for statement supports iteration.
/// forStatement:
///   await? for '(' forLoopParts ')' statement
/// ;
/// forLoopParts:
///   forInitializerStatement expression? ';' expressionList? |
///   declaredIdentifier in expression |
///   identifier in expression
/// ;
/// forInitializerStatement:
///   initializedVariableDeclaration |
///   expression? ';'
/// ;
/// @description Checks that it is a compile-time error if the loop variable
/// in an asynchronous form of 'id in expression' is not a simple variable.
/// @author a.semenov@unipro.ru

import 'dart:async';

class C {
  int i;
}

main() async {
  try {
    C c = new C();
    await for (c.i in new Stream.fromIterable([1,2])) break;
//                                               ^
// [analyzer] unspecified
// [cfe] unspecified
  } catch (x) {}
}