DCHECK: load event is dispatched after executeScript() iff m_isExternalScript

third_party/WebKit/Source/core/xml/parser/XMLDocumentParser.cpp

 /*
  * Copyright (C) 2000 Peter Kelly (pmk@post.com)
  * Copyright (C) 2005, 2006, 2008, 2014 Apple Inc. All rights reserved.
  * Copyright (C) 2006 Alexey Proskuryakov (ap@webkit.org)
  * Copyright (C) 2007 Samuel Weinig (sam@webkit.org)
  * Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies)
  * Copyright (C) 2008 Holger Hans Peter Freyther
  * Copyright (C) 2008 Torch Mobile Inc. All rights reserved.
  * (http://www.torchmobile.com/)
  *
@@ skipping 443 matching lines @@
   if (errorOccurred) {
     scriptLoader->dispatchErrorEvent();
   } else if (!wasCanceled) {
     if (scriptParserBlockingTime > 0.0) {
       DocumentParserTiming::from(*document())
           .recordParserBlockedOnScriptLoadDuration(
               monotonicallyIncreasingTime() - scriptParserBlockingTime,
               scriptLoader->wasCreatedDuringDocumentWrite());
     }
 
+#if DCHECK_IS_ON()
+    DCHECK(scriptLoader->isExternalScript());
+#endif
     if (!scriptLoader->executeScript(sourceCode))
       scriptLoader->dispatchErrorEvent();
     else
       scriptLoader->dispatchLoadEvent();
   }
 
   m_scriptElement = nullptr;
 
   if (!isDetached() && !m_requestingScript)
     resumeParsing();
@@ skipping 632 matching lines @@
   DCHECK(!m_pendingScript);
   m_requestingScript = true;
 
   if (scriptLoader->prepareScript(
           m_scriptStartPosition,
           ScriptLoader::AllowLegacyTypeInTypeAttribute)) {
     // FIXME: Script execution should be shared between
     // the libxml2 and Qt XMLDocumentParser implementations.
 
     if (scriptLoader->readyToBeParserExecuted()) {
+#if DCHECK_IS_ON()
+      DCHECK(!scriptLoader->isExternalScript());
+#endif
       if (!scriptLoader->executeScript(
               ScriptSourceCode(scriptLoader->scriptContent(), document()->url(),
                                m_scriptStartPosition))) {
         scriptLoader->dispatchErrorEvent();
         return;
       }
     } else if (scriptLoader->willBeParserExecuted()) {
       m_pendingScript = scriptLoader->resource();
       DCHECK_EQ(m_parserBlockingPendingScriptLoadStartTime, 0.0);
       m_parserBlockingPendingScriptLoadStartTime =
@@ skipping 583 matching lines @@
   RefPtr<XMLParserContext> parser =
       XMLParserContext::createStringParser(&sax, &state);
   String parseString = "<?xml version=\"1.0\"?><attrs " + string + " />";
   parseChunk(parser->context(), parseString);
   finishParsing(parser->context());
   attrsOK = state.gotAttributes;
   return state.attributes;
 }
 
 }  // namespace blink