blob: 216886cbeca9628fad56770c30f742899ff9dce4 [file] [log] [blame]
// 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.
// @dart = 2.9
import "package:expect/expect.dart";
class A {
const factory A() = B;
}
class B implements A {
const B();
operator ==(o) => true;
}
confuse(x) {
if (DateTime.now().millisecondsSinceEpoch == 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};
// ^
// [cfe] Constant evaluation error:
// ^^^^^^^^^
// [analyzer] COMPILE_TIME_ERROR.CONST_MAP_KEY_EXPRESSION_TYPE_IMPLEMENTS_EQUALS
Expect.equals(42, m[confuse(const B())]);
m = const {"foo": 99, const A(): 499};
// ^
// [cfe] Constant evaluation error:
// ^^^^^^^^^
// [analyzer] COMPILE_TIME_ERROR.CONST_MAP_KEY_EXPRESSION_TYPE_IMPLEMENTS_EQUALS
Expect.equals(499, m[confuse(const B())]);
}