dart-sdk/tests/language_2/inference/accessor_ref_runtime_4_test.dart
Leaf Petersen b101a7d002 Add language versions to _2 test libraries
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>
2021-04-26 17:58:57 +00:00

48 lines
748 B
Dart

// TODO(multitest): This was automatically migrated from a multitest and may
// contain strange or dead code.
// @dart = 2.9
// Copyright (c) 2018, 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.
/*@testedFeatures=inference*/
library test;
class A {
B b;
}
class B {
C get c => null;
void set c(C value) {}
}
class C {}
class D extends C {}
class E extends C {}
// Inferred type: A
var a = new A();
// Inferred type: C
var x = a.b.c;
// Inferred type: C
var y = a.b.c ??= new D();
test() {
// Verify the types of x and y by trying to assign to them.
y = new E();
}
main() {}