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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - Scopes that are not under TDZ should still push their variables onto the TDZ stack so that lifting TDZ doesn't bypass that scope"
href="https://bugs.webkit.org/show_bug.cgi?id=159332">159332</a>
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<th>Summary</th>
<td>Scopes that are not under TDZ should still push their variables onto the TDZ stack so that lifting TDZ doesn't bypass that scope
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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
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<th>Severity</th>
<td>Normal
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<th>Priority</th>
<td>P2
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<th>Component</th>
<td>JavaScriptCore
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<th>Assignee</th>
<td>webkit-unassigned@lists.webkit.org
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<th>Reporter</th>
<td>fpizlo@apple.com
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<pre>This fixes an instacrash in this code:
function foo () {
try{}catch(e){}print(e);let e;
}
foo();
We lift TDZ for "e" in "catch (e){}", but since that scope doesn't push anything onto the TDZ stack, we lift TDZ from "let e".</pre>
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