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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - There is no good reason for WeakBlock to care about newly allocated objects"
href="https://bugs.webkit.org/show_bug.cgi?id=162006">162006</a>
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<th>Summary</th>
<td>There is no good reason for WeakBlock to care about newly allocated objects
</td>
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<th>Classification</th>
<td>Unclassified
</td>
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<th>Product</th>
<td>WebKit
</td>
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<th>Version</th>
<td>WebKit Nightly Build
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<th>Hardware</th>
<td>All
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<th>OS</th>
<td>All
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<th>Status</th>
<td>NEW
</td>
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<th>Severity</th>
<td>Normal
</td>
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<th>Priority</th>
<td>P2
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<th>Component</th>
<td>JavaScriptCore
</td>
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<th>Assignee</th>
<td>webkit-unassigned@lists.webkit.org
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<th>Reporter</th>
<td>fpizlo@apple.com
</td>
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<p>
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<pre>WeakBlock scans itself in two modes:
visit: if a Weak in the block belongs to an unmarked object, ask the Weak to consider whether it should do things.
reap: if a Weak in a block belongs to an unmarked object, delete the Weak.
Except that "unmarked" has a peculiar meaning: WeakBlock defines it as !markedOrNewlyAllocated. So, a newly allocated object will never be consulted about anything. That sounds scary until you realize that newlyAllocated must have been cleared before we even got here.
So, we were paying the price of checking newlyAllocated for no reason.</pre>
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