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// 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.
// Test efficient and correct implementation of !identical(a, b).
// VMOptions=--optimization-counter-threshold=10 --no-background-compilation
// @dart = 2.9
import 'package:expect/expect.dart';
notIdenticalTest1(a) {
if (!identical("ho", a)) {
return 2;
} else {
return 1;
}
}
notIdenticalTest2(a) {
var x = identical("ho", a);
if (!x) {
Expect.equals(false, x);
return x;
} else {
Expect.equals(true, x);
return 1;
}
}
notIdenticalTest3(a) {
var x = identical("ho", a);
return !x;
}
main() {
for (int i = 0; i < 20; i++) {
Expect.equals(1, notIdenticalTest1("ho"));
Expect.equals(1, notIdenticalTest2("ho"));
Expect.equals(false, notIdenticalTest3("ho"));
}
}