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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - Modify bytecode generation for finally blocks so that we don't have to duplicate them."
href="https://bugs.webkit.org/show_bug.cgi?id=159470">159470</a>
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<th>Summary</th>
<td>Modify bytecode generation for finally blocks so that we don't have to duplicate them.
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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 Local Build
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<th>Hardware</th>
<td>Unspecified
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<th>OS</th>
<td>Unspecified
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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>mark.lam@apple.com
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<p>
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<pre>Instead, we can simply pass to Register values to finally block:
1. a JSValue to throw or to return.
2. an int enum value indicating an action to take at the end of the finally block:
a. FallThru: fall thru to next block.
b. Return: return the stashed returned value if this finally block does not have an outer finally block; else jump to outer finally block.
c. Throw; throw the stashed thrown value. It will automatically be caught by outer catch and finally blocks if present.</pre>
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