blob: 5efcd423623caa7eadb4083cebdf578523794e94 [file] [log] [blame]
/*
* 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 for statement of the form for (finalConstVarOrType? id in e) s
* is equivalent to the following code:
* var n0 = e.iterator;
* while (n0.moveNext()) {
* finalConstVarOrType? id = n0.current;
* s
* }
* where n0 is an identifier that does not occur anywhere in the program, except
* that for purposes of static typechecking, it is checked under the assumption
* that n0 is declared to be of type T, where T is the static type of e.iterator.
* @description Checks that a [TypeError] is thrown if the type of e
* does not implement [Iterable].
* @author vasya
*/
import '../../../../Utils/expect.dart';
class A {}
void check(var e) {
Expect.throws(() { for (var id in e); }, (e) => e is TypeError);
Expect.throws(() { for (dynamic id in e); }, (e) => e is TypeError);
Expect.throws(() {
var id;
for (id in e);
}, (e) => e is TypeError);
}
main() {
check(1234567);
check("string");
check(true);
check(new A());
}