Joshua Litt
20faaa5d94
Change-Id: Ib18f554c1076f27a3f7c0df5a36410da41a1f467 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/148784 Reviewed-by: Paul Berry <paulberry@google.com> Reviewed-by: Sigmund Cherem <sigmund@google.com>
37 lines
946 B
Dart
37 lines
946 B
Dart
// Copyright (c) 2014, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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// @dart = 2.7
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// Test constant folding on numbers.
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import 'package:async_helper/async_helper.dart';
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import '../helpers/compiler_helper.dart';
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const String CODE = """
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class A {
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var _link;
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get link => _link;
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}
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foo(x) {
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if (new DateTime.now().millisecondsSinceEpoch == 42) return null;
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var a = new A();
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if (new DateTime.now().millisecondsSinceEpoch == 42) return a;
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a._link = a;
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return a;
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}
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main() {
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A x = foo(0);
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return x == x.link;
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}
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""";
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main() {
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asyncTest(() async {
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// The `==` is strengthened to a HIdentity instruction. The HIdentity
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// follows `x.link`, so x cannot be `null`.
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var compare = new RegExp(r'x === x\.get\$link\(\)');
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await compileAndMatch(CODE, 'main', compare);
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});
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}
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