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<dl class="meta">
<dt>Revision</dt> <dd><a href="http://trac.webkit.org/projects/webkit/changeset/207267">207267</a></dd>
<dt>Author</dt> <dd>commit-queue@webkit.org</dd>
<dt>Date</dt> <dd>2016-10-12 19:05:44 -0700 (Wed, 12 Oct 2016)</dd>
</dl>

<h3>Log Message</h3>
<pre>Web Inspector: step-into `console.log(o)` should not step through inspector javascript
https://bugs.webkit.org/show_bug.cgi?id=161656
&lt;rdar://problem/28181123&gt;

Patch by Joseph Pecoraro &lt;pecoraro@apple.com&gt; on 2016-10-12
Reviewed by Timothy Hatcher.

Source/JavaScriptCore:

* debugger/Debugger.h:
* debugger/Debugger.cpp:
(JSC::Debugger::pauseIfNeeded):
If the Script is blacklisted skip checking if we need to pause.

(JSC::Debugger::isBlacklisted):
(JSC::Debugger::addToBlacklist):
(JSC::Debugger::clearBlacklist):
Add the ability to add a Script to a blacklist. Currently the blacklist
only prevents pausing in the Script.

* inspector/agents/InspectorDebuggerAgent.cpp:
(Inspector::isWebKitInjectedScript):
(Inspector::InspectorDebuggerAgent::didParseSource):
Always add Internal InjectedScripts to the Debugger's blacklist.

(Inspector::InspectorDebuggerAgent::clearDebuggerBreakpointState):
Clear blacklists when clearing debugger state.

LayoutTests:

* inspector/debugger/stepping/stepping-internal-scripts-expected.txt: Added.
* inspector/debugger/stepping/stepping-internal-scripts.html: Added.
Ensure step-into a console.log statement steps past it, and doesn't pause
inside the non-visible internal script.</pre>

<h3>Modified Paths</h3>
<ul>
<li><a href="#trunkLayoutTestsChangeLog">trunk/LayoutTests/ChangeLog</a></li>
<li><a href="#trunkLayoutTestsinspectordebuggerbreakpointsyntaxerrortoplevelhtml">trunk/LayoutTests/inspector/debugger/breakpoint-syntax-error-top-level.html</a></li>
<li><a href="#trunkSourceJavaScriptCoreChangeLog">trunk/Source/JavaScriptCore/ChangeLog</a></li>
<li><a href="#trunkSourceJavaScriptCoredebuggerDebuggercpp">trunk/Source/JavaScriptCore/debugger/Debugger.cpp</a></li>
<li><a href="#trunkSourceJavaScriptCoredebuggerDebuggerh">trunk/Source/JavaScriptCore/debugger/Debugger.h</a></li>
<li><a href="#trunkSourceJavaScriptCoreinspectoragentsInspectorDebuggerAgentcpp">trunk/Source/JavaScriptCore/inspector/agents/InspectorDebuggerAgent.cpp</a></li>
</ul>

<h3>Added Paths</h3>
<ul>
<li><a href="#trunkLayoutTestsinspectordebuggersteppingsteppinginternalscriptsexpectedtxt">trunk/LayoutTests/inspector/debugger/stepping/stepping-internal-scripts-expected.txt</a></li>
<li><a href="#trunkLayoutTestsinspectordebuggersteppingsteppinginternalscriptshtml">trunk/LayoutTests/inspector/debugger/stepping/stepping-internal-scripts.html</a></li>
</ul>

</div>
<div id="patch">
<h3>Diff</h3>
<a id="trunkLayoutTestsChangeLog"></a>
<div class="modfile"><h4>Modified: trunk/LayoutTests/ChangeLog (207266 => 207267)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/LayoutTests/ChangeLog        2016-10-13 01:42:53 UTC (rev 207266)
+++ trunk/LayoutTests/ChangeLog        2016-10-13 02:05:44 UTC (rev 207267)
</span><span class="lines">@@ -1,3 +1,16 @@
</span><ins>+2016-10-12  Joseph Pecoraro  &lt;pecoraro@apple.com&gt;
+
+        Web Inspector: step-into `console.log(o)` should not step through inspector javascript
+        https://bugs.webkit.org/show_bug.cgi?id=161656
+        &lt;rdar://problem/28181123&gt;
+
+        Reviewed by Timothy Hatcher.
+
+        * inspector/debugger/stepping/stepping-internal-scripts-expected.txt: Added.
+        * inspector/debugger/stepping/stepping-internal-scripts.html: Added.
+        Ensure step-into a console.log statement steps past it, and doesn't pause
+        inside the non-visible internal script.
+
</ins><span class="cx"> 2016-10-12  Yusuke Suzuki  &lt;utatane.tea@gmail.com&gt;
</span><span class="cx"> 
</span><span class="cx">         Unreviewed, add expected file for new test after r207239
</span></span></pre></div>
<a id="trunkLayoutTestsinspectordebuggerbreakpointsyntaxerrortoplevelhtml"></a>
<div class="modfile"><h4>Modified: trunk/LayoutTests/inspector/debugger/breakpoint-syntax-error-top-level.html (207266 => 207267)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/LayoutTests/inspector/debugger/breakpoint-syntax-error-top-level.html        2016-10-13 01:42:53 UTC (rev 207266)
+++ trunk/LayoutTests/inspector/debugger/breakpoint-syntax-error-top-level.html        2016-10-13 02:05:44 UTC (rev 207267)
</span><span class="lines">@@ -21,7 +21,7 @@
</span><span class="cx">         name: &quot;TopLevelSyntaxErrorDontCrash&quot;,
</span><span class="cx">         description: &quot;Make sure exceptions from top-level syntax errors don't cause us to crash.&quot;,
</span><span class="cx">         test: (resolve, reject) =&gt; {
</span><del>-            InspectorProtocol.eventHandler[&quot;Debugger.paused&quot;] = function(messageObject) { 
</del><ins>+            InspectorProtocol.eventHandler[&quot;Debugger.paused&quot;] = function(messageObject) {
</ins><span class="cx">                 InspectorProtocol.sendCommand(&quot;Debugger.resume&quot;);
</span><span class="cx"> 
</span><span class="cx">                 ProtocolTest.pass(&quot;Paused on the breakpoint after syntax error at top level without crashing.&quot;);
</span><span class="lines">@@ -37,6 +37,6 @@
</span><span class="cx"> &lt;/script&gt;
</span><span class="cx"> &lt;/head&gt;
</span><span class="cx"> &lt;body onload=&quot;runTest()&quot;&gt;
</span><del>-&lt;p&gt; Making sure we don't crash when having a top-level syntax error. &lt;/p&gt;
</del><ins>+&lt;p&gt;Making sure we don't crash when having a top-level syntax error.&lt;/p&gt;
</ins><span class="cx"> &lt;/body&gt;
</span><span class="cx"> &lt;/html&gt;
</span></span></pre></div>
<a id="trunkLayoutTestsinspectordebuggersteppingsteppinginternalscriptsexpectedtxt"></a>
<div class="addfile"><h4>Added: trunk/LayoutTests/inspector/debugger/stepping/stepping-internal-scripts-expected.txt (0 => 207267)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/LayoutTests/inspector/debugger/stepping/stepping-internal-scripts-expected.txt                                (rev 0)
+++ trunk/LayoutTests/inspector/debugger/stepping/stepping-internal-scripts-expected.txt        2016-10-13 02:05:44 UTC (rev 207267)
</span><span class="lines">@@ -0,0 +1,124 @@
</span><ins>+CONSOLE MESSAGE: line 9: [object Window]
+CONSOLE MESSAGE: line 10: [object Console]
+CONSOLE MESSAGE: line 11: string
+CONSOLE MESSAGE: line 9: [object Window]
+CONSOLE MESSAGE: line 10: [object Console]
+CONSOLE MESSAGE: line 11: string
+Checking pause locations when stepping in and over statements that make use of Internal scripts.
+
+
+== Running test suite: Debugger.stepping.internal
+-- Running test case: Debugger.stepping.internal.ConsoleLog.StepOver
+EXPRESSION: setTimeout(entryConsoleLog)
+STEPS: over, over, over, over, resume
+PAUSED (debugger-statement)
+PAUSE AT entryConsoleLog:8:5
+      4    &lt;script src=&quot;../resources/log-pause-location.js&quot;&gt;&lt;/script&gt;
+      5    &lt;script&gt;
+      6    function entryConsoleLog() {
+ -&gt;   7        |debugger;
+      8        console.log(window);
+      9        console.log(console);
+     10        console.log(&quot;string&quot;);
+
+ACTION: step-over
+PAUSE AT entryConsoleLog:9:5
+      5    &lt;script&gt;
+      6    function entryConsoleLog() {
+      7        debugger;
+ -&gt;   8        |console.log(window);
+      9        console.log(console);
+     10        console.log(&quot;string&quot;);
+     11    }
+
+ACTION: step-over
+PAUSE AT entryConsoleLog:10:5
+      6    function entryConsoleLog() {
+      7        debugger;
+      8        console.log(window);
+ -&gt;   9        |console.log(console);
+     10        console.log(&quot;string&quot;);
+     11    }
+     12    
+
+ACTION: step-over
+PAUSE AT entryConsoleLog:11:5
+      7        debugger;
+      8        console.log(window);
+      9        console.log(console);
+ -&gt;  10        |console.log(&quot;string&quot;);
+     11    }
+     12    
+     13    // ---------
+
+ACTION: step-over
+PAUSE AT entryConsoleLog:12:2
+      8        console.log(window);
+      9        console.log(console);
+     10        console.log(&quot;string&quot;);
+ -&gt;  11    }|
+     12    
+     13    // ---------
+     14    
+
+ACTION: resume
+RESUMED
+PASS: Should have used all steps.
+
+-- Running test case: Debugger.stepping.internal.ConsoleLog.StepIn
+EXPRESSION: setTimeout(entryConsoleLog)
+STEPS: over, in, in, in, resume
+PAUSED (debugger-statement)
+PAUSE AT entryConsoleLog:8:5
+      4    &lt;script src=&quot;../resources/log-pause-location.js&quot;&gt;&lt;/script&gt;
+      5    &lt;script&gt;
+      6    function entryConsoleLog() {
+ -&gt;   7        |debugger;
+      8        console.log(window);
+      9        console.log(console);
+     10        console.log(&quot;string&quot;);
+
+ACTION: step-over
+PAUSE AT entryConsoleLog:9:5
+      5    &lt;script&gt;
+      6    function entryConsoleLog() {
+      7        debugger;
+ -&gt;   8        |console.log(window);
+      9        console.log(console);
+     10        console.log(&quot;string&quot;);
+     11    }
+
+ACTION: step-in
+PAUSE AT entryConsoleLog:10:5
+      6    function entryConsoleLog() {
+      7        debugger;
+      8        console.log(window);
+ -&gt;   9        |console.log(console);
+     10        console.log(&quot;string&quot;);
+     11    }
+     12    
+
+ACTION: step-in
+PAUSE AT entryConsoleLog:11:5
+      7        debugger;
+      8        console.log(window);
+      9        console.log(console);
+ -&gt;  10        |console.log(&quot;string&quot;);
+     11    }
+     12    
+     13    // ---------
+
+ACTION: step-in
+PAUSE AT entryConsoleLog:12:2
+      8        console.log(window);
+      9        console.log(console);
+     10        console.log(&quot;string&quot;);
+ -&gt;  11    }|
+     12    
+     13    // ---------
+     14    
+
+ACTION: resume
+RESUMED
+PASS: Should have used all steps.
+
</ins></span></pre></div>
<a id="trunkLayoutTestsinspectordebuggersteppingsteppinginternalscriptshtml"></a>
<div class="addfile"><h4>Added: trunk/LayoutTests/inspector/debugger/stepping/stepping-internal-scripts.html (0 => 207267)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/LayoutTests/inspector/debugger/stepping/stepping-internal-scripts.html                                (rev 0)
+++ trunk/LayoutTests/inspector/debugger/stepping/stepping-internal-scripts.html        2016-10-13 02:05:44 UTC (rev 207267)
</span><span class="lines">@@ -0,0 +1,57 @@
</span><ins>+&lt;!DOCTYPE html&gt;
+&lt;html&gt;
+&lt;head&gt;
+&lt;script src=&quot;../../../http/tests/inspector/resources/inspector-test.js&quot;&gt;&lt;/script&gt;
+&lt;script src=&quot;../resources/log-pause-location.js&quot;&gt;&lt;/script&gt;
+&lt;script&gt;
+function entryConsoleLog() {
+    debugger;
+    console.log(window);
+    console.log(console);
+    console.log(&quot;string&quot;);
+}
+
+// ---------
+
+function test()
+{
+    let suite = InspectorTest.createAsyncSuite(&quot;Debugger.stepping.internal&quot;);
+
+    window.initializeSteppingTestSuite(suite);
+
+    addSteppingTestCase({
+        name: &quot;Debugger.stepping.internal.ConsoleLog.StepOver&quot;,
+        description: &quot;Should be able to step over console.log statements which use the Internal InjectedScript.&quot;,
+        expression: &quot;setTimeout(entryConsoleLog)&quot;,
+        steps: [
+            &quot;over&quot;,
+                &quot;over&quot;, // console.log(window)
+                &quot;over&quot;, // console.log(console)
+                &quot;over&quot;, // console.log(&quot;string&quot;)
+            &quot;resume&quot;,
+        ]
+    });
+
+    addSteppingTestCase({
+        name: &quot;Debugger.stepping.internal.ConsoleLog.StepIn&quot;,
+        description: &quot;Should not be able to step into console.log statements which use the Internal InjectedScript.&quot;,
+        expression: &quot;setTimeout(entryConsoleLog)&quot;,
+        steps: [
+            &quot;over&quot;,
+                &quot;in&quot;, // console.log(window)
+                &quot;in&quot;, // console.log(console)
+                &quot;in&quot;, // console.log(&quot;string&quot;)
+            &quot;resume&quot;,
+        ]
+    });
+
+    loadMainPageContent().then(() =&gt; {
+        suite.runTestCasesAndFinish();
+    });
+}
+&lt;/script&gt;
+&lt;/head&gt;
+&lt;body onload=&quot;runTest()&quot;&gt;
+&lt;p&gt;Checking pause locations when stepping in and over statements that make use of Internal scripts.&lt;/p&gt;
+&lt;/body&gt;
+&lt;/html&gt;
</ins></span></pre></div>
<a id="trunkSourceJavaScriptCoreChangeLog"></a>
<div class="modfile"><h4>Modified: trunk/Source/JavaScriptCore/ChangeLog (207266 => 207267)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/JavaScriptCore/ChangeLog        2016-10-13 01:42:53 UTC (rev 207266)
+++ trunk/Source/JavaScriptCore/ChangeLog        2016-10-13 02:05:44 UTC (rev 207267)
</span><span class="lines">@@ -1,3 +1,30 @@
</span><ins>+2016-10-12  Joseph Pecoraro  &lt;pecoraro@apple.com&gt;
+
+        Web Inspector: step-into `console.log(o)` should not step through inspector javascript
+        https://bugs.webkit.org/show_bug.cgi?id=161656
+        &lt;rdar://problem/28181123&gt;
+
+        Reviewed by Timothy Hatcher.
+
+        * debugger/Debugger.h:
+        * debugger/Debugger.cpp:
+        (JSC::Debugger::pauseIfNeeded):
+        If the Script is blacklisted skip checking if we need to pause.
+
+        (JSC::Debugger::isBlacklisted):
+        (JSC::Debugger::addToBlacklist):
+        (JSC::Debugger::clearBlacklist):
+        Add the ability to add a Script to a blacklist. Currently the blacklist
+        only prevents pausing in the Script.
+
+        * inspector/agents/InspectorDebuggerAgent.cpp:
+        (Inspector::isWebKitInjectedScript):
+        (Inspector::InspectorDebuggerAgent::didParseSource):
+        Always add Internal InjectedScripts to the Debugger's blacklist.
+
+        (Inspector::InspectorDebuggerAgent::clearDebuggerBreakpointState):
+        Clear blacklists when clearing debugger state.
+
</ins><span class="cx"> 2016-10-12  Keith Miller  &lt;keith_miller@apple.com&gt;
</span><span class="cx"> 
</span><span class="cx">         B3 needs a special WasmBoundsCheck Opcode
</span></span></pre></div>
<a id="trunkSourceJavaScriptCoredebuggerDebuggercpp"></a>
<div class="modfile"><h4>Modified: trunk/Source/JavaScriptCore/debugger/Debugger.cpp (207266 => 207267)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/JavaScriptCore/debugger/Debugger.cpp        2016-10-13 01:42:53 UTC (rev 207266)
+++ trunk/Source/JavaScriptCore/debugger/Debugger.cpp        2016-10-13 02:05:44 UTC (rev 207267)
</span><span class="lines">@@ -691,6 +691,10 @@
</span><span class="cx">     if (m_suppressAllPauses)
</span><span class="cx">         return;
</span><span class="cx"> 
</span><ins>+    intptr_t sourceID = DebuggerCallFrame::sourceIDForCallFrame(m_currentCallFrame);
+    if (isBlacklisted(sourceID))
+        return;
+
</ins><span class="cx">     DebuggerPausedScope debuggerPausedScope(*this);
</span><span class="cx"> 
</span><span class="cx">     bool pauseNow = m_pauseAtNextOpportunity;
</span><span class="lines">@@ -700,7 +704,6 @@
</span><span class="cx">     bool didHitBreakpoint = false;
</span><span class="cx"> 
</span><span class="cx">     Breakpoint breakpoint;
</span><del>-    intptr_t sourceID = DebuggerCallFrame::sourceIDForCallFrame(m_currentCallFrame);
</del><span class="cx">     TextPosition position = DebuggerCallFrame::positionForCallFrame(m_currentCallFrame);
</span><span class="cx">     pauseNow |= didHitBreakpoint = hasBreakpoint(sourceID, position, &amp;breakpoint);
</span><span class="cx">     m_lastExecutedLine = position.m_line.zeroBasedInt();
</span><span class="lines">@@ -912,4 +915,19 @@
</span><span class="cx">     return m_currentDebuggerCallFrame.get();
</span><span class="cx"> }
</span><span class="cx"> 
</span><ins>+bool Debugger::isBlacklisted(SourceID sourceID) const
+{
+    return m_blacklistedScripts.contains(sourceID);
+}
+
+void Debugger::addToBlacklist(SourceID sourceID)
+{
+    m_blacklistedScripts.add(sourceID);
+}
+
+void Debugger::clearBlacklist()
+{
+    m_blacklistedScripts.clear();
+}
+
</ins><span class="cx"> } // namespace JSC
</span></span></pre></div>
<a id="trunkSourceJavaScriptCoredebuggerDebuggerh"></a>
<div class="modfile"><h4>Modified: trunk/Source/JavaScriptCore/debugger/Debugger.h (207266 => 207267)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/JavaScriptCore/debugger/Debugger.h        2016-10-13 01:42:53 UTC (rev 207266)
+++ trunk/Source/JavaScriptCore/debugger/Debugger.h        2016-10-13 02:05:44 UTC (rev 207267)
</span><span class="lines">@@ -110,6 +110,10 @@
</span><span class="cx">     void stepOverStatement();
</span><span class="cx">     void stepOutOfFunction();
</span><span class="cx"> 
</span><ins>+    bool isBlacklisted(SourceID) const;
+    void addToBlacklist(SourceID);
+    void clearBlacklist();
+
</ins><span class="cx">     bool isPaused() const { return m_isPaused; }
</span><span class="cx">     bool isStepping() const { return m_steppingMode == SteppingModeEnabled; }
</span><span class="cx"> 
</span><span class="lines">@@ -216,7 +220,8 @@
</span><span class="cx"> 
</span><span class="cx">     VM&amp; m_vm;
</span><span class="cx">     HashSet&lt;JSGlobalObject*&gt; m_globalObjects;
</span><del>-    HashMap&lt;SourceID, DebuggerParseData&gt; m_parseDataMap;
</del><ins>+    HashMap&lt;SourceID, DebuggerParseData, WTF::IntHash&lt;SourceID&gt;, WTF::UnsignedWithZeroKeyHashTraits&lt;SourceID&gt;&gt; m_parseDataMap;
+    HashSet&lt;SourceID, WTF::IntHash&lt;SourceID&gt;, WTF::UnsignedWithZeroKeyHashTraits&lt;SourceID&gt;&gt; m_blacklistedScripts;
</ins><span class="cx"> 
</span><span class="cx">     PauseOnExceptionsState m_pauseOnExceptionsState;
</span><span class="cx">     bool m_pauseAtNextOpportunity : 1;
</span></span></pre></div>
<a id="trunkSourceJavaScriptCoreinspectoragentsInspectorDebuggerAgentcpp"></a>
<div class="modfile"><h4>Modified: trunk/Source/JavaScriptCore/inspector/agents/InspectorDebuggerAgent.cpp (207266 => 207267)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/JavaScriptCore/inspector/agents/InspectorDebuggerAgent.cpp        2016-10-13 01:42:53 UTC (rev 207266)
+++ trunk/Source/JavaScriptCore/inspector/agents/InspectorDebuggerAgent.cpp        2016-10-13 02:05:44 UTC (rev 207267)
</span><span class="lines">@@ -681,6 +681,11 @@
</span><span class="cx">     return script.sourceMappingURL;
</span><span class="cx"> }
</span><span class="cx"> 
</span><ins>+static bool isWebKitInjectedScript(const String&amp; sourceURL)
+{
+    return sourceURL.startsWith(&quot;__InjectedScript_&quot;) &amp;&amp; sourceURL.endsWith(&quot;.js&quot;);
+}
+
</ins><span class="cx"> void InspectorDebuggerAgent::didParseSource(JSC::SourceID sourceID, const Script&amp; script)
</span><span class="cx"> {
</span><span class="cx">     String scriptIDStr = String::number(sourceID);
</span><span class="lines">@@ -696,6 +701,9 @@
</span><span class="cx"> 
</span><span class="cx">     m_scripts.set(sourceID, script);
</span><span class="cx"> 
</span><ins>+    if (hasSourceURL &amp;&amp; isWebKitInjectedScript(sourceURL))
+        m_scriptDebugServer.addToBlacklist(sourceID);
+
</ins><span class="cx">     String scriptURLForBreakpoints = hasSourceURL ? script.sourceURL : script.url;
</span><span class="cx">     if (scriptURLForBreakpoints.isEmpty())
</span><span class="cx">         return;
</span><span class="lines">@@ -868,6 +876,7 @@
</span><span class="cx"> {
</span><span class="cx">     m_scriptDebugServer.clearBreakpointActions();
</span><span class="cx">     m_scriptDebugServer.clearBreakpoints();
</span><ins>+    m_scriptDebugServer.clearBlacklist();
</ins><span class="cx"> 
</span><span class="cx">     m_pausedScriptState = nullptr;
</span><span class="cx">     m_currentCallStack = { };
</span></span></pre>
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