blob: 368e633a924a7352f08dfa445de20b66e9b70ef0 [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 {
static const b = const B();
}
class B implements A {
const B();
operator ==(o) => true;
}
main() {
// It is a compile-time error if the key type overrides operator ==.
dynamic m = const {A.b: 42};
// ^
// [cfe] Constant evaluation error:
// ^^^
// [analyzer] COMPILE_TIME_ERROR.CONST_MAP_KEY_EXPRESSION_TYPE_IMPLEMENTS_EQUALS
Expect.equals(42, m[const B()]);
m = const {"foo": 99, A.b: 499};
// ^
// [cfe] Constant evaluation error:
// ^^^
// [analyzer] COMPILE_TIME_ERROR.CONST_MAP_KEY_EXPRESSION_TYPE_IMPLEMENTS_EQUALS
Expect.equals(499, m[const B()]);
}