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sdk/tests/language_2/abstract/exact_selector_runtime_test.dart
T
Robert Nystrom fc1b1ecc71 Move files under language_2 into subdirectories.
Change-Id: Idbcc965a27e9ffeedf5e0a1068b019de4193070f
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/127745
Commit-Queue: Bob Nystrom <rnystrom@google.com>
Reviewed-by: Alexander Thomas <athom@google.com>
2019-12-11 19:18:00 +00:00

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1.1 KiB
Dart

// TODO(multitest): This was automatically migrated from a multitest and may
// contain strange or dead code.
// Copyright (c) 2013, 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.
// Regression test for dart2js that used to duplicate some `Object`
// methods to handle `noSuchMethod`.
import "package:expect/expect.dart";
import "../compiler_annotations.dart";
class Foo {
noSuchMethod(im) => 42;
}
@DontInline()
returnFoo() {
(() => 42)();
return new Foo();
}
class Bar {
operator ==(other) => false;
}
var a = [false, true, new Object(), new Bar()];
main() {
if (a[0]) {
// This `==` call will make the compiler create a selector with an
// exact `TypeMask` of `Foo`. Since `Foo` is abstract, such a call
// cannot happen, but we still used to generate a `==` method on
// the `Object` class to handle `noSuchMethod`.
print(returnFoo() == 42);
} else {
Expect.isFalse(a[2] == 42);
}
}