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<div id="msg">
<dl class="meta">
<dt>Revision</dt> <dd><a href="http://trac.webkit.org/projects/webkit/changeset/170635">170635</a></dd>
<dt>Author</dt> <dd>zandobersek@gmail.com</dd>
<dt>Date</dt> <dd>2014-07-01 04:32:36 -0700 (Tue, 01 Jul 2014)</dd>
</dl>

<h3>Log Message</h3>
<pre>[WK2] IPC messages' arguments() method returns const std::tuple&lt;&gt; copies
https://bugs.webkit.org/show_bug.cgi?id=131975

Reviewed by Darin Adler.

The arguments() method of the different IPC message objects should return a const reference
to the std::tuple&lt;&gt; containing the arguments, instead of a const value. This avoids copying
the std::tuple&lt;&gt; every time the arguments are encoded, and works best with the
ArgumentEncoder::encode&lt;std::tuple&lt;...&gt;&gt;(const std::tuple&lt;...&gt;&amp;) template instantiation.

The unit test baselines are updated accordingly.

* Scripts/webkit2/LegacyMessages-expected.h:
(Messages::WebPage::LoadURL::arguments):
(Messages::WebPage::LoadSomething::arguments):
(Messages::WebPage::TouchEvent::arguments):
(Messages::WebPage::AddEvent::arguments):
(Messages::WebPage::LoadSomethingElse::arguments):
(Messages::WebPage::DidReceivePolicyDecision::arguments):
(Messages::WebPage::Close::arguments):
(Messages::WebPage::PreferencesDidChange::arguments):
(Messages::WebPage::SendDoubleAndFloat::arguments):
(Messages::WebPage::SendInts::arguments):
(Messages::WebPage::CreatePlugin::arguments):
(Messages::WebPage::RunJavaScriptAlert::arguments):
(Messages::WebPage::GetPlugins::arguments):
(Messages::WebPage::GetPluginProcessConnection::arguments):
(Messages::WebPage::TestMultipleAttributes::arguments):
(Messages::WebPage::TestParameterAttributes::arguments):
(Messages::WebPage::TemplateTest::arguments):
(Messages::WebPage::SetVideoLayerID::arguments):
(Messages::WebPage::DidCreateWebProcessConnection::arguments):
(Messages::WebPage::InterpretKeyEvent::arguments):
(Messages::WebPage::DeprecatedOperation::arguments):
(Messages::WebPage::ExperimentalOperation::arguments):
* Scripts/webkit2/Messages-expected.h:
(Messages::WebPage::LoadURL::arguments):
(Messages::WebPage::LoadSomething::arguments):
(Messages::WebPage::TouchEvent::arguments):
(Messages::WebPage::AddEvent::arguments):
(Messages::WebPage::LoadSomethingElse::arguments):
(Messages::WebPage::DidReceivePolicyDecision::arguments):
(Messages::WebPage::Close::arguments):
(Messages::WebPage::PreferencesDidChange::arguments):
(Messages::WebPage::SendDoubleAndFloat::arguments):
(Messages::WebPage::SendInts::arguments):
(Messages::WebPage::CreatePlugin::arguments):
(Messages::WebPage::RunJavaScriptAlert::arguments):
(Messages::WebPage::GetPlugins::arguments):
(Messages::WebPage::GetPluginProcessConnection::arguments):
(Messages::WebPage::TestMultipleAttributes::arguments):
(Messages::WebPage::TestParameterAttributes::arguments):
(Messages::WebPage::TemplateTest::arguments):
(Messages::WebPage::SetVideoLayerID::arguments):
(Messages::WebPage::DidCreateWebProcessConnection::arguments):
(Messages::WebPage::InterpretKeyEvent::arguments):
(Messages::WebPage::DeprecatedOperation::arguments):
(Messages::WebPage::ExperimentalOperation::arguments):
* Scripts/webkit2/MessagesSuperclass-expected.h:
(Messages::WebPage::LoadURL::arguments):
* Scripts/webkit2/messages.py:
(message_to_struct_declaration):</pre>

<h3>Modified Paths</h3>
<ul>
<li><a href="#trunkSourceWebKit2ChangeLog">trunk/Source/WebKit2/ChangeLog</a></li>
<li><a href="#trunkSourceWebKit2Scriptswebkit2LegacyMessagesexpectedh">trunk/Source/WebKit2/Scripts/webkit2/LegacyMessages-expected.h</a></li>
<li><a href="#trunkSourceWebKit2Scriptswebkit2Messagesexpectedh">trunk/Source/WebKit2/Scripts/webkit2/Messages-expected.h</a></li>
<li><a href="#trunkSourceWebKit2Scriptswebkit2MessagesSuperclassexpectedh">trunk/Source/WebKit2/Scripts/webkit2/MessagesSuperclass-expected.h</a></li>
<li><a href="#trunkSourceWebKit2Scriptswebkit2messagespy">trunk/Source/WebKit2/Scripts/webkit2/messages.py</a></li>
</ul>

</div>
<div id="patch">
<h3>Diff</h3>
<a id="trunkSourceWebKit2ChangeLog"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebKit2/ChangeLog (170634 => 170635)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebKit2/ChangeLog        2014-07-01 11:29:24 UTC (rev 170634)
+++ trunk/Source/WebKit2/ChangeLog        2014-07-01 11:32:36 UTC (rev 170635)
</span><span class="lines">@@ -1,3 +1,68 @@
</span><ins>+2014-07-01  Zan Dobersek  &lt;zdobersek@igalia.com&gt;
+
+        [WK2] IPC messages' arguments() method returns const std::tuple&lt;&gt; copies
+        https://bugs.webkit.org/show_bug.cgi?id=131975
+
+        Reviewed by Darin Adler.
+
+        The arguments() method of the different IPC message objects should return a const reference
+        to the std::tuple&lt;&gt; containing the arguments, instead of a const value. This avoids copying
+        the std::tuple&lt;&gt; every time the arguments are encoded, and works best with the
+        ArgumentEncoder::encode&lt;std::tuple&lt;...&gt;&gt;(const std::tuple&lt;...&gt;&amp;) template instantiation.
+
+        The unit test baselines are updated accordingly.
+
+        * Scripts/webkit2/LegacyMessages-expected.h:
+        (Messages::WebPage::LoadURL::arguments):
+        (Messages::WebPage::LoadSomething::arguments):
+        (Messages::WebPage::TouchEvent::arguments):
+        (Messages::WebPage::AddEvent::arguments):
+        (Messages::WebPage::LoadSomethingElse::arguments):
+        (Messages::WebPage::DidReceivePolicyDecision::arguments):
+        (Messages::WebPage::Close::arguments):
+        (Messages::WebPage::PreferencesDidChange::arguments):
+        (Messages::WebPage::SendDoubleAndFloat::arguments):
+        (Messages::WebPage::SendInts::arguments):
+        (Messages::WebPage::CreatePlugin::arguments):
+        (Messages::WebPage::RunJavaScriptAlert::arguments):
+        (Messages::WebPage::GetPlugins::arguments):
+        (Messages::WebPage::GetPluginProcessConnection::arguments):
+        (Messages::WebPage::TestMultipleAttributes::arguments):
+        (Messages::WebPage::TestParameterAttributes::arguments):
+        (Messages::WebPage::TemplateTest::arguments):
+        (Messages::WebPage::SetVideoLayerID::arguments):
+        (Messages::WebPage::DidCreateWebProcessConnection::arguments):
+        (Messages::WebPage::InterpretKeyEvent::arguments):
+        (Messages::WebPage::DeprecatedOperation::arguments):
+        (Messages::WebPage::ExperimentalOperation::arguments):
+        * Scripts/webkit2/Messages-expected.h:
+        (Messages::WebPage::LoadURL::arguments):
+        (Messages::WebPage::LoadSomething::arguments):
+        (Messages::WebPage::TouchEvent::arguments):
+        (Messages::WebPage::AddEvent::arguments):
+        (Messages::WebPage::LoadSomethingElse::arguments):
+        (Messages::WebPage::DidReceivePolicyDecision::arguments):
+        (Messages::WebPage::Close::arguments):
+        (Messages::WebPage::PreferencesDidChange::arguments):
+        (Messages::WebPage::SendDoubleAndFloat::arguments):
+        (Messages::WebPage::SendInts::arguments):
+        (Messages::WebPage::CreatePlugin::arguments):
+        (Messages::WebPage::RunJavaScriptAlert::arguments):
+        (Messages::WebPage::GetPlugins::arguments):
+        (Messages::WebPage::GetPluginProcessConnection::arguments):
+        (Messages::WebPage::TestMultipleAttributes::arguments):
+        (Messages::WebPage::TestParameterAttributes::arguments):
+        (Messages::WebPage::TemplateTest::arguments):
+        (Messages::WebPage::SetVideoLayerID::arguments):
+        (Messages::WebPage::DidCreateWebProcessConnection::arguments):
+        (Messages::WebPage::InterpretKeyEvent::arguments):
+        (Messages::WebPage::DeprecatedOperation::arguments):
+        (Messages::WebPage::ExperimentalOperation::arguments):
+        * Scripts/webkit2/MessagesSuperclass-expected.h:
+        (Messages::WebPage::LoadURL::arguments):
+        * Scripts/webkit2/messages.py:
+        (message_to_struct_declaration):
+
</ins><span class="cx"> 2014-07-01  Evan Nemerson  &lt;evan@nemerson.com&gt;
</span><span class="cx"> 
</span><span class="cx">         [GTK] Annotations for WebResource.get_data produce wrong signature in Vala binding
</span></span></pre></div>
<a id="trunkSourceWebKit2Scriptswebkit2LegacyMessagesexpectedh"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebKit2/Scripts/webkit2/LegacyMessages-expected.h (170634 => 170635)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebKit2/Scripts/webkit2/LegacyMessages-expected.h        2014-07-01 11:29:24 UTC (rev 170634)
+++ trunk/Source/WebKit2/Scripts/webkit2/LegacyMessages-expected.h        2014-07-01 11:32:36 UTC (rev 170635)
</span><span class="lines">@@ -77,7 +77,7 @@
</span><span class="cx">     {
</span><span class="cx">     }
</span><span class="cx"> 
</span><del>-    const std::tuple&lt;const String&amp;&gt; arguments() const
</del><ins>+    const std::tuple&lt;const String&amp;&gt;&amp; arguments() const
</ins><span class="cx">     {
</span><span class="cx">         return m_arguments;
</span><span class="cx">     }
</span><span class="lines">@@ -100,7 +100,7 @@
</span><span class="cx">     {
</span><span class="cx">     }
</span><span class="cx"> 
</span><del>-    const std::tuple&lt;const String&amp;&gt; arguments() const
</del><ins>+    const std::tuple&lt;const String&amp;&gt;&amp; arguments() const
</ins><span class="cx">     {
</span><span class="cx">         return m_arguments;
</span><span class="cx">     }
</span><span class="lines">@@ -124,7 +124,7 @@
</span><span class="cx">     {
</span><span class="cx">     }
</span><span class="cx"> 
</span><del>-    const std::tuple&lt;const WebKit::WebTouchEvent&amp;&gt; arguments() const
</del><ins>+    const std::tuple&lt;const WebKit::WebTouchEvent&amp;&gt;&amp; arguments() const
</ins><span class="cx">     {
</span><span class="cx">         return m_arguments;
</span><span class="cx">     }
</span><span class="lines">@@ -148,7 +148,7 @@
</span><span class="cx">     {
</span><span class="cx">     }
</span><span class="cx"> 
</span><del>-    const std::tuple&lt;const WebKit::WebTouchEvent&amp;&gt; arguments() const
</del><ins>+    const std::tuple&lt;const WebKit::WebTouchEvent&amp;&gt;&amp; arguments() const
</ins><span class="cx">     {
</span><span class="cx">         return m_arguments;
</span><span class="cx">     }
</span><span class="lines">@@ -172,7 +172,7 @@
</span><span class="cx">     {
</span><span class="cx">     }
</span><span class="cx"> 
</span><del>-    const std::tuple&lt;const String&amp;&gt; arguments() const
</del><ins>+    const std::tuple&lt;const String&amp;&gt;&amp; arguments() const
</ins><span class="cx">     {
</span><span class="cx">         return m_arguments;
</span><span class="cx">     }
</span><span class="lines">@@ -195,7 +195,7 @@
</span><span class="cx">     {
</span><span class="cx">     }
</span><span class="cx"> 
</span><del>-    const std::tuple&lt;uint64_t, uint64_t, uint32_t&gt; arguments() const
</del><ins>+    const std::tuple&lt;uint64_t, uint64_t, uint32_t&gt;&amp; arguments() const
</ins><span class="cx">     {
</span><span class="cx">         return m_arguments;
</span><span class="cx">     }
</span><span class="lines">@@ -212,7 +212,7 @@
</span><span class="cx">     static IPC::StringReference name() { return IPC::StringReference(&quot;Close&quot;); }
</span><span class="cx">     static const bool isSync = false;
</span><span class="cx"> 
</span><del>-    const std::tuple&lt;&gt; arguments() const
</del><ins>+    const std::tuple&lt;&gt;&amp; arguments() const
</ins><span class="cx">     {
</span><span class="cx">         return m_arguments;
</span><span class="cx">     }
</span><span class="lines">@@ -234,7 +234,7 @@
</span><span class="cx">     {
</span><span class="cx">     }
</span><span class="cx"> 
</span><del>-    const std::tuple&lt;const WebKit::WebPreferencesStore&amp;&gt; arguments() const
</del><ins>+    const std::tuple&lt;const WebKit::WebPreferencesStore&amp;&gt;&amp; arguments() const
</ins><span class="cx">     {
</span><span class="cx">         return m_arguments;
</span><span class="cx">     }
</span><span class="lines">@@ -256,7 +256,7 @@
</span><span class="cx">     {
</span><span class="cx">     }
</span><span class="cx"> 
</span><del>-    const std::tuple&lt;double, float&gt; arguments() const
</del><ins>+    const std::tuple&lt;double, float&gt;&amp; arguments() const
</ins><span class="cx">     {
</span><span class="cx">         return m_arguments;
</span><span class="cx">     }
</span><span class="lines">@@ -278,7 +278,7 @@
</span><span class="cx">     {
</span><span class="cx">     }
</span><span class="cx"> 
</span><del>-    const std::tuple&lt;const Vector&lt;uint64_t&gt;&amp;, const Vector&lt;Vector&lt;uint64_t&gt;&gt;&amp;&gt; arguments() const
</del><ins>+    const std::tuple&lt;const Vector&lt;uint64_t&gt;&amp;, const Vector&lt;Vector&lt;uint64_t&gt;&gt;&amp;&gt;&amp; arguments() const
</ins><span class="cx">     {
</span><span class="cx">         return m_arguments;
</span><span class="cx">     }
</span><span class="lines">@@ -301,7 +301,7 @@
</span><span class="cx">     {
</span><span class="cx">     }
</span><span class="cx"> 
</span><del>-    const std::tuple&lt;uint64_t, const WebKit::Plugin::Parameters&amp;&gt; arguments() const
</del><ins>+    const std::tuple&lt;uint64_t, const WebKit::Plugin::Parameters&amp;&gt;&amp; arguments() const
</ins><span class="cx">     {
</span><span class="cx">         return m_arguments;
</span><span class="cx">     }
</span><span class="lines">@@ -324,7 +324,7 @@
</span><span class="cx">     {
</span><span class="cx">     }
</span><span class="cx"> 
</span><del>-    const std::tuple&lt;uint64_t, const String&amp;&gt; arguments() const
</del><ins>+    const std::tuple&lt;uint64_t, const String&amp;&gt;&amp; arguments() const
</ins><span class="cx">     {
</span><span class="cx">         return m_arguments;
</span><span class="cx">     }
</span><span class="lines">@@ -347,7 +347,7 @@
</span><span class="cx">     {
</span><span class="cx">     }
</span><span class="cx"> 
</span><del>-    const std::tuple&lt;bool&gt; arguments() const
</del><ins>+    const std::tuple&lt;bool&gt;&amp; arguments() const
</ins><span class="cx">     {
</span><span class="cx">         return m_arguments;
</span><span class="cx">     }
</span><span class="lines">@@ -381,7 +381,7 @@
</span><span class="cx">     {
</span><span class="cx">     }
</span><span class="cx"> 
</span><del>-    const std::tuple&lt;const String&amp;&gt; arguments() const
</del><ins>+    const std::tuple&lt;const String&amp;&gt;&amp; arguments() const
</ins><span class="cx">     {
</span><span class="cx">         return m_arguments;
</span><span class="cx">     }
</span><span class="lines">@@ -410,7 +410,7 @@
</span><span class="cx">     };
</span><span class="cx"> 
</span><span class="cx">     typedef IPC::Arguments&lt;&gt; Reply;
</span><del>-    const std::tuple&lt;&gt; arguments() const
</del><ins>+    const std::tuple&lt;&gt;&amp; arguments() const
</ins><span class="cx">     {
</span><span class="cx">         return m_arguments;
</span><span class="cx">     }
</span><span class="lines">@@ -432,7 +432,7 @@
</span><span class="cx">     {
</span><span class="cx">     }
</span><span class="cx"> 
</span><del>-    const std::tuple&lt;uint64_t, double, double&gt; arguments() const
</del><ins>+    const std::tuple&lt;uint64_t, double, double&gt;&amp; arguments() const
</ins><span class="cx">     {
</span><span class="cx">         return m_arguments;
</span><span class="cx">     }
</span><span class="lines">@@ -454,7 +454,7 @@
</span><span class="cx">     {
</span><span class="cx">     }
</span><span class="cx"> 
</span><del>-    const std::tuple&lt;const HashMap&lt;String, std::pair&lt;String, uint64_t&gt;&gt;&amp;&gt; arguments() const
</del><ins>+    const std::tuple&lt;const HashMap&lt;String, std::pair&lt;String, uint64_t&gt;&gt;&amp;&gt;&amp; arguments() const
</ins><span class="cx">     {
</span><span class="cx">         return m_arguments;
</span><span class="cx">     }
</span><span class="lines">@@ -476,7 +476,7 @@
</span><span class="cx">     {
</span><span class="cx">     }
</span><span class="cx"> 
</span><del>-    const std::tuple&lt;const WebCore::GraphicsLayer::PlatformLayerID&amp;&gt; arguments() const
</del><ins>+    const std::tuple&lt;const WebCore::GraphicsLayer::PlatformLayerID&amp;&gt;&amp; arguments() const
</ins><span class="cx">     {
</span><span class="cx">         return m_arguments;
</span><span class="cx">     }
</span><span class="lines">@@ -499,7 +499,7 @@
</span><span class="cx">     {
</span><span class="cx">     }
</span><span class="cx"> 
</span><del>-    const std::tuple&lt;const IPC::MachPort&amp;&gt; arguments() const
</del><ins>+    const std::tuple&lt;const IPC::MachPort&amp;&gt;&amp; arguments() const
</ins><span class="cx">     {
</span><span class="cx">         return m_arguments;
</span><span class="cx">     }
</span><span class="lines">@@ -524,7 +524,7 @@
</span><span class="cx">     {
</span><span class="cx">     }
</span><span class="cx"> 
</span><del>-    const std::tuple&lt;uint32_t&gt; arguments() const
</del><ins>+    const std::tuple&lt;uint32_t&gt;&amp; arguments() const
</ins><span class="cx">     {
</span><span class="cx">         return m_arguments;
</span><span class="cx">     }
</span><span class="lines">@@ -548,7 +548,7 @@
</span><span class="cx">     {
</span><span class="cx">     }
</span><span class="cx"> 
</span><del>-    const std::tuple&lt;const IPC::DummyType&amp;&gt; arguments() const
</del><ins>+    const std::tuple&lt;const IPC::DummyType&amp;&gt;&amp; arguments() const
</ins><span class="cx">     {
</span><span class="cx">         return m_arguments;
</span><span class="cx">     }
</span><span class="lines">@@ -572,7 +572,7 @@
</span><span class="cx">     {
</span><span class="cx">     }
</span><span class="cx"> 
</span><del>-    const std::tuple&lt;const IPC::DummyType&amp;&gt; arguments() const
</del><ins>+    const std::tuple&lt;const IPC::DummyType&amp;&gt;&amp; arguments() const
</ins><span class="cx">     {
</span><span class="cx">         return m_arguments;
</span><span class="cx">     }
</span></span></pre></div>
<a id="trunkSourceWebKit2Scriptswebkit2Messagesexpectedh"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebKit2/Scripts/webkit2/Messages-expected.h (170634 => 170635)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebKit2/Scripts/webkit2/Messages-expected.h        2014-07-01 11:29:24 UTC (rev 170634)
+++ trunk/Source/WebKit2/Scripts/webkit2/Messages-expected.h        2014-07-01 11:32:36 UTC (rev 170635)
</span><span class="lines">@@ -77,7 +77,7 @@
</span><span class="cx">     {
</span><span class="cx">     }
</span><span class="cx"> 
</span><del>-    const std::tuple&lt;const String&amp;&gt; arguments() const
</del><ins>+    const std::tuple&lt;const String&amp;&gt;&amp; arguments() const
</ins><span class="cx">     {
</span><span class="cx">         return m_arguments;
</span><span class="cx">     }
</span><span class="lines">@@ -100,7 +100,7 @@
</span><span class="cx">     {
</span><span class="cx">     }
</span><span class="cx"> 
</span><del>-    const std::tuple&lt;const String&amp;&gt; arguments() const
</del><ins>+    const std::tuple&lt;const String&amp;&gt;&amp; arguments() const
</ins><span class="cx">     {
</span><span class="cx">         return m_arguments;
</span><span class="cx">     }
</span><span class="lines">@@ -124,7 +124,7 @@
</span><span class="cx">     {
</span><span class="cx">     }
</span><span class="cx"> 
</span><del>-    const std::tuple&lt;const WebKit::WebTouchEvent&amp;&gt; arguments() const
</del><ins>+    const std::tuple&lt;const WebKit::WebTouchEvent&amp;&gt;&amp; arguments() const
</ins><span class="cx">     {
</span><span class="cx">         return m_arguments;
</span><span class="cx">     }
</span><span class="lines">@@ -148,7 +148,7 @@
</span><span class="cx">     {
</span><span class="cx">     }
</span><span class="cx"> 
</span><del>-    const std::tuple&lt;const WebKit::WebTouchEvent&amp;&gt; arguments() const
</del><ins>+    const std::tuple&lt;const WebKit::WebTouchEvent&amp;&gt;&amp; arguments() const
</ins><span class="cx">     {
</span><span class="cx">         return m_arguments;
</span><span class="cx">     }
</span><span class="lines">@@ -172,7 +172,7 @@
</span><span class="cx">     {
</span><span class="cx">     }
</span><span class="cx"> 
</span><del>-    const std::tuple&lt;const String&amp;&gt; arguments() const
</del><ins>+    const std::tuple&lt;const String&amp;&gt;&amp; arguments() const
</ins><span class="cx">     {
</span><span class="cx">         return m_arguments;
</span><span class="cx">     }
</span><span class="lines">@@ -195,7 +195,7 @@
</span><span class="cx">     {
</span><span class="cx">     }
</span><span class="cx"> 
</span><del>-    const std::tuple&lt;uint64_t, uint64_t, uint32_t&gt; arguments() const
</del><ins>+    const std::tuple&lt;uint64_t, uint64_t, uint32_t&gt;&amp; arguments() const
</ins><span class="cx">     {
</span><span class="cx">         return m_arguments;
</span><span class="cx">     }
</span><span class="lines">@@ -212,7 +212,7 @@
</span><span class="cx">     static IPC::StringReference name() { return IPC::StringReference(&quot;Close&quot;); }
</span><span class="cx">     static const bool isSync = false;
</span><span class="cx"> 
</span><del>-    const std::tuple&lt;&gt; arguments() const
</del><ins>+    const std::tuple&lt;&gt;&amp; arguments() const
</ins><span class="cx">     {
</span><span class="cx">         return m_arguments;
</span><span class="cx">     }
</span><span class="lines">@@ -234,7 +234,7 @@
</span><span class="cx">     {
</span><span class="cx">     }
</span><span class="cx"> 
</span><del>-    const std::tuple&lt;const WebKit::WebPreferencesStore&amp;&gt; arguments() const
</del><ins>+    const std::tuple&lt;const WebKit::WebPreferencesStore&amp;&gt;&amp; arguments() const
</ins><span class="cx">     {
</span><span class="cx">         return m_arguments;
</span><span class="cx">     }
</span><span class="lines">@@ -256,7 +256,7 @@
</span><span class="cx">     {
</span><span class="cx">     }
</span><span class="cx"> 
</span><del>-    const std::tuple&lt;double, float&gt; arguments() const
</del><ins>+    const std::tuple&lt;double, float&gt;&amp; arguments() const
</ins><span class="cx">     {
</span><span class="cx">         return m_arguments;
</span><span class="cx">     }
</span><span class="lines">@@ -278,7 +278,7 @@
</span><span class="cx">     {
</span><span class="cx">     }
</span><span class="cx"> 
</span><del>-    const std::tuple&lt;const Vector&lt;uint64_t&gt;&amp;, const Vector&lt;Vector&lt;uint64_t&gt;&gt;&amp;&gt; arguments() const
</del><ins>+    const std::tuple&lt;const Vector&lt;uint64_t&gt;&amp;, const Vector&lt;Vector&lt;uint64_t&gt;&gt;&amp;&gt;&amp; arguments() const
</ins><span class="cx">     {
</span><span class="cx">         return m_arguments;
</span><span class="cx">     }
</span><span class="lines">@@ -301,7 +301,7 @@
</span><span class="cx">     {
</span><span class="cx">     }
</span><span class="cx"> 
</span><del>-    const std::tuple&lt;uint64_t, const WebKit::Plugin::Parameters&amp;&gt; arguments() const
</del><ins>+    const std::tuple&lt;uint64_t, const WebKit::Plugin::Parameters&amp;&gt;&amp; arguments() const
</ins><span class="cx">     {
</span><span class="cx">         return m_arguments;
</span><span class="cx">     }
</span><span class="lines">@@ -324,7 +324,7 @@
</span><span class="cx">     {
</span><span class="cx">     }
</span><span class="cx"> 
</span><del>-    const std::tuple&lt;uint64_t, const String&amp;&gt; arguments() const
</del><ins>+    const std::tuple&lt;uint64_t, const String&amp;&gt;&amp; arguments() const
</ins><span class="cx">     {
</span><span class="cx">         return m_arguments;
</span><span class="cx">     }
</span><span class="lines">@@ -347,7 +347,7 @@
</span><span class="cx">     {
</span><span class="cx">     }
</span><span class="cx"> 
</span><del>-    const std::tuple&lt;bool&gt; arguments() const
</del><ins>+    const std::tuple&lt;bool&gt;&amp; arguments() const
</ins><span class="cx">     {
</span><span class="cx">         return m_arguments;
</span><span class="cx">     }
</span><span class="lines">@@ -381,7 +381,7 @@
</span><span class="cx">     {
</span><span class="cx">     }
</span><span class="cx"> 
</span><del>-    const std::tuple&lt;const String&amp;&gt; arguments() const
</del><ins>+    const std::tuple&lt;const String&amp;&gt;&amp; arguments() const
</ins><span class="cx">     {
</span><span class="cx">         return m_arguments;
</span><span class="cx">     }
</span><span class="lines">@@ -410,7 +410,7 @@
</span><span class="cx">     };
</span><span class="cx"> 
</span><span class="cx">     typedef IPC::Arguments&lt;&gt; Reply;
</span><del>-    const std::tuple&lt;&gt; arguments() const
</del><ins>+    const std::tuple&lt;&gt;&amp; arguments() const
</ins><span class="cx">     {
</span><span class="cx">         return m_arguments;
</span><span class="cx">     }
</span><span class="lines">@@ -432,7 +432,7 @@
</span><span class="cx">     {
</span><span class="cx">     }
</span><span class="cx"> 
</span><del>-    const std::tuple&lt;uint64_t, double, double&gt; arguments() const
</del><ins>+    const std::tuple&lt;uint64_t, double, double&gt;&amp; arguments() const
</ins><span class="cx">     {
</span><span class="cx">         return m_arguments;
</span><span class="cx">     }
</span><span class="lines">@@ -454,7 +454,7 @@
</span><span class="cx">     {
</span><span class="cx">     }
</span><span class="cx"> 
</span><del>-    const std::tuple&lt;const HashMap&lt;String, std::pair&lt;String, uint64_t&gt;&gt;&amp;&gt; arguments() const
</del><ins>+    const std::tuple&lt;const HashMap&lt;String, std::pair&lt;String, uint64_t&gt;&gt;&amp;&gt;&amp; arguments() const
</ins><span class="cx">     {
</span><span class="cx">         return m_arguments;
</span><span class="cx">     }
</span><span class="lines">@@ -476,7 +476,7 @@
</span><span class="cx">     {
</span><span class="cx">     }
</span><span class="cx"> 
</span><del>-    const std::tuple&lt;const WebCore::GraphicsLayer::PlatformLayerID&amp;&gt; arguments() const
</del><ins>+    const std::tuple&lt;const WebCore::GraphicsLayer::PlatformLayerID&amp;&gt;&amp; arguments() const
</ins><span class="cx">     {
</span><span class="cx">         return m_arguments;
</span><span class="cx">     }
</span><span class="lines">@@ -499,7 +499,7 @@
</span><span class="cx">     {
</span><span class="cx">     }
</span><span class="cx"> 
</span><del>-    const std::tuple&lt;const IPC::MachPort&amp;&gt; arguments() const
</del><ins>+    const std::tuple&lt;const IPC::MachPort&amp;&gt;&amp; arguments() const
</ins><span class="cx">     {
</span><span class="cx">         return m_arguments;
</span><span class="cx">     }
</span><span class="lines">@@ -524,7 +524,7 @@
</span><span class="cx">     {
</span><span class="cx">     }
</span><span class="cx"> 
</span><del>-    const std::tuple&lt;uint32_t&gt; arguments() const
</del><ins>+    const std::tuple&lt;uint32_t&gt;&amp; arguments() const
</ins><span class="cx">     {
</span><span class="cx">         return m_arguments;
</span><span class="cx">     }
</span><span class="lines">@@ -548,7 +548,7 @@
</span><span class="cx">     {
</span><span class="cx">     }
</span><span class="cx"> 
</span><del>-    const std::tuple&lt;const IPC::DummyType&amp;&gt; arguments() const
</del><ins>+    const std::tuple&lt;const IPC::DummyType&amp;&gt;&amp; arguments() const
</ins><span class="cx">     {
</span><span class="cx">         return m_arguments;
</span><span class="cx">     }
</span><span class="lines">@@ -572,7 +572,7 @@
</span><span class="cx">     {
</span><span class="cx">     }
</span><span class="cx"> 
</span><del>-    const std::tuple&lt;const IPC::DummyType&amp;&gt; arguments() const
</del><ins>+    const std::tuple&lt;const IPC::DummyType&amp;&gt;&amp; arguments() const
</ins><span class="cx">     {
</span><span class="cx">         return m_arguments;
</span><span class="cx">     }
</span></span></pre></div>
<a id="trunkSourceWebKit2Scriptswebkit2MessagesSuperclassexpectedh"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebKit2/Scripts/webkit2/MessagesSuperclass-expected.h (170634 => 170635)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebKit2/Scripts/webkit2/MessagesSuperclass-expected.h        2014-07-01 11:29:24 UTC (rev 170634)
+++ trunk/Source/WebKit2/Scripts/webkit2/MessagesSuperclass-expected.h        2014-07-01 11:32:36 UTC (rev 170635)
</span><span class="lines">@@ -54,7 +54,7 @@
</span><span class="cx">     {
</span><span class="cx">     }
</span><span class="cx"> 
</span><del>-    const std::tuple&lt;const String&amp;&gt; arguments() const
</del><ins>+    const std::tuple&lt;const String&amp;&gt;&amp; arguments() const
</ins><span class="cx">     {
</span><span class="cx">         return m_arguments;
</span><span class="cx">     }
</span></span></pre></div>
<a id="trunkSourceWebKit2Scriptswebkit2messagespy"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebKit2/Scripts/webkit2/messages.py (170634 => 170635)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebKit2/Scripts/webkit2/messages.py        2014-07-01 11:29:24 UTC (rev 170634)
+++ trunk/Source/WebKit2/Scripts/webkit2/messages.py        2014-07-01 11:32:36 UTC (rev 170635)
</span><span class="lines">@@ -142,7 +142,7 @@
</span><span class="cx">         result.append('\n        : m_arguments(%s)\n' % ', '.join([x[1] for x in function_parameters]))
</span><span class="cx">         result.append('    {\n')
</span><span class="cx">         result.append('    }\n\n')
</span><del>-    result.append('    const %s arguments() const\n' % arguments_type(message))
</del><ins>+    result.append('    const %s&amp; arguments() const\n' % arguments_type(message))
</ins><span class="cx">     result.append('    {\n')
</span><span class="cx">     result.append('        return m_arguments;\n')
</span><span class="cx">     result.append('    }\n')
</span></span></pre>
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