Robert Nystrom
fc1b1ecc71
Change-Id: Idbcc965a27e9ffeedf5e0a1068b019de4193070f Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/127745 Commit-Queue: Bob Nystrom <rnystrom@google.com> Reviewed-by: Alexander Thomas <athom@google.com>
32 lines
746 B
Dart
32 lines
746 B
Dart
// Copyright (c) 2013, 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.
|
|
|
|
import "package:expect/expect.dart";
|
|
|
|
class A<T> {
|
|
T field;
|
|
}
|
|
|
|
class B<T> {
|
|
T field = 42 as dynamic;
|
|
}
|
|
|
|
main() {
|
|
var a = new A<String>();
|
|
dynamic s = "string";
|
|
|
|
// This assignment is OK.
|
|
a.field = s;
|
|
|
|
dynamic i = 42;
|
|
Expect.throwsTypeError(() => a.field = i);
|
|
|
|
// Throws because the field initializer fails the implicit cast.
|
|
Expect.throwsTypeError(() => new B<String>());
|
|
|
|
// Throws because the assigned value fails the implicit cast.
|
|
var b = new B<int>();
|
|
Expect.throwsTypeError(() => b.field = s);
|
|
}
|