Leaf Petersen
b101a7d002
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>
39 lines
1.1 KiB
Dart
39 lines
1.1 KiB
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 = 2.9
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import "package:expect/expect.dart";
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// Regression test for issue 17483.
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class A {
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var x, y;
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A(x, this.y) {
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this.x = x;
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}
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toString() => "a";
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}
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foo(trace) => trace.add("foo");
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bar(trace) => trace.add("bar");
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main() {
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var trace = [];
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// Dart2js must keep the order of t1 and t2.
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var t1 = foo(trace);
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var t2 = bar(trace);
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// Dart2js inlines the constructor, yielding something like:
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// t3 = jsNew A(null, t2); // Note that jsNew is pure.
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// t3.x = t1;
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// t3 is used twice and cannot be generated at use site.
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// Dart2js must not allow t1 to cross the t3-line.
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var a = new A(t1, t2);
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// Use a. It is already implicitly used by the this.x = x line in its
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// constructor. With the following use we use it twice and make sure that
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// the allocation can not be generated at use-site.
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trace.add(a.toString());
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Expect.listEquals(["foo", "bar", "a"], trace);
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}
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