dart-sdk/tests/language_2/const_map2_test.dart
Bob Nystrom e2cc730067 Migrate blocks 51 and 52.
It looks like some of the tests in this block were already migrated,
but I re-migrated them and made a few tweaks that I think make them
better 2.0 tests.

Change-Id: I6d9058a53408f046d7db34f2244eeeb2c5eda625
Reviewed-on: https://dart-review.googlesource.com/13620
Reviewed-by: Ben Konyi <bkonyi@google.com>
2017-10-13 22:46:23 +00:00

30 lines
715 B
Dart

// Copyright (c) 2014, 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 {
const factory A() = B;
}
class B implements A {
const B();
operator ==(o) => true; //# 00: compile-time error
}
confuse(x) {
if (new DateTime.now() == 42) return confuse(2);
return x;
}
main() {
// It is a compile-time error if the key type overrides operator ==.
dynamic m = const {const A(): 42};
Expect.equals(42, m[confuse(const B())]);
m = const {"foo": 99, const A(): 499};
Expect.equals(499, m[confuse(const B())]);
}