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sdk/tests/language_2/implicit_downcast_during_variable_declaration_test.dart
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Paul Berry 5f633852af Add a language_2 test for implicit downcasts in variable declarations.
Change-Id: I8ca6b3446895537c1fde33ae7152c9f29038f05f
Reviewed-on: https://dart-review.googlesource.com/22205
Reviewed-by: Konstantin Shcheglov <scheglov@google.com>
Commit-Queue: Paul Berry <paulberry@google.com>
2017-11-20 22:59:27 +00:00

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Dart

// Copyright (c) 2017, 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 {}
class B extends A {}
void main() {
A a1 = new B();
A a2 = new A();
B b1 = a1; // No error
Expect.throwsTypeError(() {
B b2 = a2;
});
}