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f205141a42
Change-Id: Ib798b9573ee8ec924f87104684934785fadc8189 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/141702 Auto-Submit: Bob Nystrom <rnystrom@google.com> Reviewed-by: Leaf Petersen <leafp@google.com> Reviewed-by: Erik Ernst <eernst@google.com> Reviewed-by: Nicholas Shahan <nshahan@google.com> Commit-Queue: Bob Nystrom <rnystrom@google.com>
44 lines
997 B
Dart
44 lines
997 B
Dart
// Copyright (c) 2011, 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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// Based on dartbug.com/7681
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// Verify that context chains do not lead to unintended memory being held.
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library closure_cycles_test;
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import "dart:async";
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class X {
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late Function onX;
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X() {
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Timer.run(() => onX(new Y()));
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}
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}
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class Y {
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late Function onY;
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var heavyMemory;
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static var count = 0;
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Y() {
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// Consume large amounts of memory per iteration to fail/succeed quicker.
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heavyMemory = new List.filled(10 * 1024 * 1024, null);
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// Terminate the test if we allocated enough memory without running out.
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if (count++ > 100) return;
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Timer.run(() => onY());
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}
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}
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void doIt() {
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var x = new X();
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x.onX = (y) {
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y.onY = () {
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y; // Capturing y can lead to endless context chains!
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doIt();
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};
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};
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}
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void main() {
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doIt();
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}
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