e3e81892a4
Apple currently objects to cleanupSome but agrees to shipping the rest of WeakRefs. Separate out cleanupSome to its own flag so the rest of WeakRefs may ship. Bug: v8:8179 Change-Id: I6159fc743c9cb658860d4260b0dcb95e54630fdc Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2141011 Commit-Queue: Shu-yu Guo <syg@chromium.org> Reviewed-by: Sathya Gunasekaran <gsathya@chromium.org> Cr-Commit-Position: refs/heads/master@{#67070}
30 lines
793 B
JavaScript
30 lines
793 B
JavaScript
// Copyright 2018 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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// Flags: --harmony-weak-refs-with-cleanup-some --expose-gc --noincremental-marking --allow-natives-syntax
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let cleanup_count = 0;
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let cleanup_holdings = [];
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let cleanup = function(holdings) {
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cleanup_holdings.push(holdings);
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++cleanup_count;
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}
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let fg = new FinalizationRegistry(cleanup);
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(function() {
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let o = {};
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fg.register(o, "holdings");
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assertEquals(0, cleanup_count);
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})();
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// GC will detect o as dead.
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gc();
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// passing no callback, should trigger cleanup function
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fg.cleanupSome();
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assertEquals(1, cleanup_count);
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assertEquals(1, cleanup_holdings.length);
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assertEquals("holdings", cleanup_holdings[0]);
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