The HTML parser synchronously creates custom elements

third_party/WebKit/Source/core/html/parser/HTMLTreeBuilder.cpp

 /*
  * Copyright (C) 2010 Google, Inc. All Rights Reserved.
  * Copyright (C) 2011, 2014 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 249 matching lines @@
     RefPtr<StringImpl> m_characters;
     unsigned m_current;
     unsigned m_end;
 };
 
 HTMLTreeBuilder::HTMLTreeBuilder(HTMLDocumentParser* parser, Document& document, ParserContentPolicy parserContentPolicy, const HTMLParserOptions& options)
     : m_framesetOk(true)
 #if ENABLE(ASSERT)
     , m_isAttached(true)
 #endif
-    , m_tree(document, parserContentPolicy)
+    , m_tree(parser->reentryPermit(), document, parserContentPolicy)
     , m_insertionMode(InitialMode)
     , m_originalInsertionMode(InitialMode)
     , m_shouldSkipLeadingNewline(false)
     , m_parser(parser)
     , m_scriptToProcessStartPosition(uninitializedPositionValue1())
     , m_options(options)
 {
 }
 
 HTMLTreeBuilder::HTMLTreeBuilder(HTMLDocumentParser* parser, DocumentFragment* fragment, Element* contextElement, ParserContentPolicy parserContentPolicy, const HTMLParserOptions& options)
@@ skipping 38 matching lines @@
 {
     visitor->trace(m_fragmentContext);
     visitor->trace(m_tree);
     visitor->trace(m_parser);
     visitor->trace(m_scriptToProcess);
 }
 
 void HTMLTreeBuilder::detach()
 {
 #if ENABLE(ASSERT)
-    // This call makes little sense in fragment mode, but for consistency
-    // DocumentParser expects detach() to always be called before it's destroyed.
+    // This call makes little sense in fragment mode, but for
+    // consistency DocumentParser expects detach() to always be called
+    // before it's destroyed.
     m_isAttached = false;
 #endif
     // HTMLConstructionSite might be on the callstack when detach() is called
     // otherwise we'd just call m_tree.clear() here instead.
     m_tree.detach();
 }
 
 Element* HTMLTreeBuilder::takeScriptToProcess(TextPosition& scriptStartPosition)
 {
     ASSERT(m_scriptToProcess);
@@ skipping 2488 matching lines @@
         DEFINE_STRINGIFY(AfterFramesetMode)
         DEFINE_STRINGIFY(AfterAfterBodyMode)
         DEFINE_STRINGIFY(AfterAfterFramesetMode)
 #undef DEFINE_STRINGIFY
     }
     return "<unknown>";
 }
 #endif
 
 } // namespace blink