dart-sdk/tests/language_strong/initializing_formal_promotion_test.dart
Bob Nystrom 6c757957db Move the dev_compiler strong mode tests into sdk/tests/.
DDC's codegen test copies those files to a local "gen" directory so
that it can do stuff like splitting out the multitests before it
compiles them to JS.

I left all of that alone, so the rest of DDC's test infrastructure is
unchanged. The very first step that builds the "gen" directory just
copies from sdk/tests/..._strong/... instead and the rest is good to go.

I did not move not_yet_strong_tests.dart somewhere more accessible yet
because I'm not sure if kernel needs it or where it should go.

I did not create any status files because DDC doesn't need them and
there are no test suites for the new directories for the other
platforms.
2016-12-09 11:09:55 -08:00

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648 B
Dart

// Copyright (c) 2016, 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.
//
// DartOptions=--initializing-formal-access
// VMOptions=--initializing-formal-access
import "package:expect/expect.dart";
class B {}
class A {
B x, y;
// Promotion occurs for the initializing formal because C <: B.
A(this.x) : y = (x is C) ? x.x : x;
}
class C extends A implements B {
C(B x) : super(x);
}
main() {
C c = new C(null);
C cc = new C(c);
Expect.equals(c.y, null);
Expect.equals(cc.y, null);
}