Leaf Petersen
b101a7d002
Change-Id: Ib33169c3e0ffc870915c189404074a1dea472546 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/196548 Reviewed-by: Bob Nystrom <rnystrom@google.com> Commit-Queue: Leaf Petersen <leafp@google.com>
32 lines
789 B
Dart
32 lines
789 B
Dart
// Copyright (c) 2011, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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// Check that const objects (including literals) are immutable.
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// @dart = 2.9
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import "package:expect/expect.dart";
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class A {
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const A(this.x, this.y);
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final num x, y;
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}
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main() {
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dynamic list = const [1, 2];
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Expect.throws(() => list[0] = 3);
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Expect.equals(1, list[0]);
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dynamic m = const {'foo': 499};
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Expect.throws(() => m['foo'] = 42);
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Expect.equals(499, m['foo']);
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dynamic a1 = const A(1, 2);
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Expect.throws(() => a1.x = 499);
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Expect.equals(1, a1.x);
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dynamic a2 = const A(1, 2);
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Expect.throws(() => a2.x = 499);
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Expect.equals(1, a2.x);
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}
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