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<title>[168384] trunk/Source/JavaScriptCore</title>
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<dt>Revision</dt> <dd><a href="http://trac.webkit.org/projects/webkit/changeset/168384">168384</a></dd>
<dt>Author</dt> <dd>akling@apple.com</dd>
<dt>Date</dt> <dd>2014-05-06 15:16:22 -0700 (Tue, 06 May 2014)</dd>
</dl>
<h3>Log Message</h3>
<pre>JSString::toAtomicString() should return AtomicString.
<https://webkit.org/b/132627>
Remove premature optimization where I was trying to avoid refcount
churn when returning an already atomicized String.
Instead of using reinterpret_cast to mangle the String member into
a const AtomicString& return value, just return AtomicString.
Reviewed by Geoff Garen.
* runtime/JSString.h:
(JSC::JSString::toAtomicString):</pre>
<h3>Modified Paths</h3>
<ul>
<li><a href="#trunkSourceJavaScriptCoreChangeLog">trunk/Source/JavaScriptCore/ChangeLog</a></li>
<li><a href="#trunkSourceJavaScriptCoreruntimeJSStringh">trunk/Source/JavaScriptCore/runtime/JSString.h</a></li>
</ul>
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<h3>Diff</h3>
<a id="trunkSourceJavaScriptCoreChangeLog"></a>
<div class="modfile"><h4>Modified: trunk/Source/JavaScriptCore/ChangeLog (168383 => 168384)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/JavaScriptCore/ChangeLog 2014-05-06 22:13:45 UTC (rev 168383)
+++ trunk/Source/JavaScriptCore/ChangeLog 2014-05-06 22:16:22 UTC (rev 168384)
</span><span class="lines">@@ -1,3 +1,19 @@
</span><ins>+2014-05-06 Andreas Kling <akling@apple.com>
+
+ JSString::toAtomicString() should return AtomicString.
+ <https://webkit.org/b/132627>
+
+ Remove premature optimization where I was trying to avoid refcount
+ churn when returning an already atomicized String.
+
+ Instead of using reinterpret_cast to mangle the String member into
+ a const AtomicString& return value, just return AtomicString.
+
+ Reviewed by Geoff Garen.
+
+ * runtime/JSString.h:
+ (JSC::JSString::toAtomicString):
+
</ins><span class="cx"> 2014-05-06 Mark Hahnenberg <mhahnenberg@apple.com>
</span><span class="cx">
</span><span class="cx"> Roll out r167889
</span></span></pre></div>
<a id="trunkSourceJavaScriptCoreruntimeJSStringh"></a>
<div class="modfile"><h4>Modified: trunk/Source/JavaScriptCore/runtime/JSString.h (168383 => 168384)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/JavaScriptCore/runtime/JSString.h 2014-05-06 22:13:45 UTC (rev 168383)
+++ trunk/Source/JavaScriptCore/runtime/JSString.h 2014-05-06 22:16:22 UTC (rev 168384)
</span><span class="lines">@@ -140,7 +140,7 @@
</span><span class="cx"> }
</span><span class="cx">
</span><span class="cx"> Identifier toIdentifier(ExecState*) const;
</span><del>- const AtomicString& toAtomicString(ExecState*) const;
</del><ins>+ AtomicString toAtomicString(ExecState*) const;
</ins><span class="cx"> AtomicStringImpl* toExistingAtomicString(ExecState*) const;
</span><span class="cx"> const String& value(ExecState*) const;
</span><span class="cx"> const String& tryGetValue() const;
</span><span class="lines">@@ -393,13 +393,11 @@
</span><span class="cx"> return Identifier(exec, toAtomicString(exec));
</span><span class="cx"> }
</span><span class="cx">
</span><del>- ALWAYS_INLINE const AtomicString& JSString::toAtomicString(ExecState* exec) const
</del><ins>+ ALWAYS_INLINE AtomicString JSString::toAtomicString(ExecState* exec) const
</ins><span class="cx"> {
</span><span class="cx"> if (isRope())
</span><span class="cx"> static_cast<const JSRopeString*>(this)->resolveRopeToAtomicString(exec);
</span><del>- else if (!m_value.impl()->isAtomic())
- m_value = AtomicString(m_value);
- return *reinterpret_cast<const AtomicString*>(&m_value);
</del><ins>+ return AtomicString(m_value);
</ins><span class="cx"> }
</span><span class="cx">
</span><span class="cx"> ALWAYS_INLINE AtomicStringImpl* JSString::toExistingAtomicString(ExecState* exec) const
</span></span></pre>
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