dart-sdk/tests/language/canonicalize/const_test.dart
Robert Nystrom 7cf6e52cd1 Migrate language_2/canonicalize to NNBD.
Change-Id: I603740794fc286527f7f37c0d57feb9b57157784
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/141661
Auto-Submit: Bob Nystrom <rnystrom@google.com>
Reviewed-by: Erik Ernst <eernst@google.com>
Commit-Queue: Bob Nystrom <rnystrom@google.com>
2020-03-31 00:42:49 +00:00

45 lines
1.4 KiB
Dart

// Copyright (c) 2011, 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.
// Check that initializers of static const fields are compile time constants.
import "package:expect/expect.dart";
class CanonicalConstTest {
static const A = const C1();
static const B = const C2();
static testMain() {
Expect.identical(null, null);
Expect.isFalse(identical(null, 0));
Expect.identical(1, 1);
Expect.isFalse(identical(1, 2));
Expect.identical(true, true);
Expect.identical("so", "so");
Expect.identical(const Object(), const Object());
Expect.isFalse(identical(const Object(), const C1()));
Expect.identical(const C1(), const C1());
Expect.identical(A, const C1());
Expect.isFalse(identical(const C1(), const C2()));
Expect.identical(B, const C2());
Expect.isFalse(identical(const [2, 1], const [1, 2]));
Expect.identical(const <int>[1, 2], const <int>[1, 2]);
Expect.identical(const <Object>[1, 2], const <Object>[1, 2]);
Expect.isFalse(identical(const <int>[1, 2], const <double>[1.0, 2.0]));
Expect.identical(const {"a": 1, "b": 2}, const {"a": 1, "b": 2});
Expect.isFalse(identical(const {"a": 1, "b": 2}, const {"a": 2, "b": 2}));
}
}
class C1 {
const C1();
}
class C2 extends C1 {
const C2() : super();
}
main() {
CanonicalConstTest.testMain();
}