Extension Error Piping - Blink: WebKit Side

Source/core/page/PageConsole.cpp

 /*
  * Copyright (C) 2013 Apple Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
  * 2.  Redistributions in binary form must reproduce the above copyright
@@ skipping 20 matching lines @@
 
 #include "core/dom/Document.h"
 #include "core/dom/ScriptableDocumentParser.h"
 #include "core/inspector/ConsoleAPITypes.h"
 #include "core/inspector/InspectorConsoleInstrumentation.h"
 #include "core/inspector/ScriptCallStack.h"
 #include "core/page/Chrome.h"
 #include "core/page/ChromeClient.h"
 #include "core/page/ConsoleTypes.h"
 #include "core/page/Page.h"
+#include "wtf/text/StringBuilder.h"
 #include "wtf/text/WTFString.h"
 
 namespace WebCore {
 
 namespace {
 
 int muteCount = 0;
 
 }
 
@@ skipping 24 matching lines @@
         return;
 
     if (callStack)
         InspectorInstrumentation::addMessageToConsole(page, source, LogMessageType, level, message, callStack, requestIdentifier);
     else
         InspectorInstrumentation::addMessageToConsole(page, source, LogMessageType, level, message, url, lineNumber, columnNumber, state, requestIdentifier);
 
     if (source == CSSMessageSource)
         return;
 
-    page->chrome().client().addMessageToConsole(source, level, message, lineNumber, url);
+    String stackTrace;
+    if (page->chrome().client().shouldReportDetailedMessageForSource(url) && callStack)
+        stackTrace = formatStackTraceString(message, callStack);
+
+    page->chrome().client().addMessageToConsole(source, level, message, lineNumber, url, stackTrace);
 }
 
-// static
+String PageConsole::formatStackTraceString(const String& originalMessage, PassRefPtr<ScriptCallStack> callStack)
+{
+    StringBuilder stackTrace;
+    for (size_t i = 0; i < callStack->size(); ++i) {
+        const ScriptCallFrame& frame = callStack->at(i);
+        stackTrace.append("\n    at " + (frame.functionName().length() ? frame.functionName() : "(anonymous function)"));
+        stackTrace.append(" (");
+        stackTrace.append(frame.sourceURL());
+        stackTrace.append(':');
+        stackTrace.append(String::number(frame.lineNumber()));
+        stackTrace.append(':');
+        stackTrace.append(String::number(frame.columnNumber()));
+        stackTrace.append(')');
+    }
+
+    return stackTrace.toString();
+}
+
 void PageConsole::mute()
 {
     muteCount++;
 }
 
-// static
 void PageConsole::unmute()
 {
     ASSERT(muteCount > 0);
     muteCount--;
 }
 
 } // namespace WebCore