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| 1 /* | 1 /* |
| 2 * Copyright (C) 2010 Google, Inc. All Rights Reserved. | 2 * Copyright (C) 2010 Google, Inc. All Rights Reserved. |
| 3 * | 3 * |
| 4 * Redistribution and use in source and binary forms, with or without | 4 * Redistribution and use in source and binary forms, with or without |
| 5 * modification, are permitted provided that the following conditions | 5 * modification, are permitted provided that the following conditions |
| 6 * are met: | 6 * are met: |
| 7 * 1. Redistributions of source code must retain the above copyright | 7 * 1. Redistributions of source code must retain the above copyright |
| 8 * notice, this list of conditions and the following disclaimer. | 8 * notice, this list of conditions and the following disclaimer. |
| 9 * 2. Redistributions in binary form must reproduce the above copyright | 9 * 2. Redistributions in binary form must reproduce the above copyright |
| 10 * notice, this list of conditions and the following disclaimer in the | 10 * notice, this list of conditions and the following disclaimer in the |
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| 67 class PumpSession; | 67 class PumpSession; |
| 68 | 68 |
| 69 class HTMLDocumentParser : public ScriptableDocumentParser, private HTMLScriptR
unnerHost { | 69 class HTMLDocumentParser : public ScriptableDocumentParser, private HTMLScriptR
unnerHost { |
| 70 WTF_MAKE_FAST_ALLOCATED_WILL_BE_REMOVED(HTMLDocumentParser); | 70 WTF_MAKE_FAST_ALLOCATED_WILL_BE_REMOVED(HTMLDocumentParser); |
| 71 WILL_BE_USING_GARBAGE_COLLECTED_MIXIN(HTMLDocumentParser); | 71 WILL_BE_USING_GARBAGE_COLLECTED_MIXIN(HTMLDocumentParser); |
| 72 public: | 72 public: |
| 73 static PassRefPtrWillBeRawPtr<HTMLDocumentParser> create(HTMLDocument& docum
ent, bool reportErrors, ParserSynchronizationPolicy backgroundParsingPolicy) | 73 static PassRefPtrWillBeRawPtr<HTMLDocumentParser> create(HTMLDocument& docum
ent, bool reportErrors, ParserSynchronizationPolicy backgroundParsingPolicy) |
| 74 { | 74 { |
| 75 return adoptRefWillBeNoop(new HTMLDocumentParser(document, reportErrors,
backgroundParsingPolicy)); | 75 return adoptRefWillBeNoop(new HTMLDocumentParser(document, reportErrors,
backgroundParsingPolicy)); |
| 76 } | 76 } |
| 77 virtual ~HTMLDocumentParser(); | 77 ~HTMLDocumentParser() override; |
| 78 DECLARE_VIRTUAL_TRACE(); | 78 DECLARE_VIRTUAL_TRACE(); |
| 79 | 79 |
| 80 // Exposed for HTMLParserScheduler | 80 // Exposed for HTMLParserScheduler |
| 81 void resumeParsingAfterYield(); | 81 void resumeParsingAfterYield(); |
| 82 | 82 |
| 83 static void parseDocumentFragment(const String&, DocumentFragment*, Element*
contextElement, ParserContentPolicy = AllowScriptingContent); | 83 static void parseDocumentFragment(const String&, DocumentFragment*, Element*
contextElement, ParserContentPolicy = AllowScriptingContent); |
| 84 | 84 |
| 85 HTMLTokenizer* tokenizer() const { return m_tokenizer.get(); } | 85 HTMLTokenizer* tokenizer() const { return m_tokenizer.get(); } |
| 86 | 86 |
| 87 virtual TextPosition textPosition() const override final; | 87 TextPosition textPosition() const final; |
| 88 virtual bool isParsingAtLineNumber() const override final; | 88 bool isParsingAtLineNumber() const final; |
| 89 virtual OrdinalNumber lineNumber() const override final; | 89 OrdinalNumber lineNumber() const final; |
| 90 | 90 |
| 91 virtual void suspendScheduledTasks() override final; | 91 void suspendScheduledTasks() final; |
| 92 virtual void resumeScheduledTasks() override final; | 92 void resumeScheduledTasks() final; |
| 93 | 93 |
| 94 struct ParsedChunk { | 94 struct ParsedChunk { |
| 95 OwnPtr<CompactHTMLTokenStream> tokens; | 95 OwnPtr<CompactHTMLTokenStream> tokens; |
| 96 PreloadRequestStream preloads; | 96 PreloadRequestStream preloads; |
| 97 XSSInfoStream xssInfos; | 97 XSSInfoStream xssInfos; |
| 98 HTMLTokenizer::State tokenizerState; | 98 HTMLTokenizer::State tokenizerState; |
| 99 HTMLTreeBuilderSimulator::State treeBuilderState; | 99 HTMLTreeBuilderSimulator::State treeBuilderState; |
| 100 HTMLInputCheckpoint inputCheckpoint; | 100 HTMLInputCheckpoint inputCheckpoint; |
| 101 TokenPreloadScannerCheckpoint preloadScannerCheckpoint; | 101 TokenPreloadScannerCheckpoint preloadScannerCheckpoint; |
| 102 bool startingScript; | 102 bool startingScript; |
| 103 }; | 103 }; |
| 104 void didReceiveParsedChunkFromBackgroundParser(PassOwnPtr<ParsedChunk>); | 104 void didReceiveParsedChunkFromBackgroundParser(PassOwnPtr<ParsedChunk>); |
| 105 void didReceiveEncodingDataFromBackgroundParser(const DocumentEncodingData&)
; | 105 void didReceiveEncodingDataFromBackgroundParser(const DocumentEncodingData&)
; |
| 106 | 106 |
| 107 virtual void appendBytes(const char* bytes, size_t length) override; | 107 void appendBytes(const char* bytes, size_t length) override; |
| 108 virtual void flush() override final; | 108 void flush() final; |
| 109 virtual void setDecoder(PassOwnPtr<TextResourceDecoder>) override final; | 109 void setDecoder(PassOwnPtr<TextResourceDecoder>) final; |
| 110 | 110 |
| 111 UseCounter* useCounter() { return UseCounter::getFrom(contextForParsingSessi
on()); } | 111 UseCounter* useCounter() { return UseCounter::getFrom(contextForParsingSessi
on()); } |
| 112 | 112 |
| 113 protected: | 113 protected: |
| 114 virtual void insert(const SegmentedString&) override final; | 114 void insert(const SegmentedString&) final; |
| 115 virtual void append(const String&) override; | 115 void append(const String&) override; |
| 116 virtual void finish() override final; | 116 void finish() final; |
| 117 | 117 |
| 118 HTMLDocumentParser(HTMLDocument&, bool reportErrors, ParserSynchronizationPo
licy); | 118 HTMLDocumentParser(HTMLDocument&, bool reportErrors, ParserSynchronizationPo
licy); |
| 119 HTMLDocumentParser(DocumentFragment*, Element* contextElement, ParserContent
Policy); | 119 HTMLDocumentParser(DocumentFragment*, Element* contextElement, ParserContent
Policy); |
| 120 | 120 |
| 121 HTMLTreeBuilder* treeBuilder() const { return m_treeBuilder.get(); } | 121 HTMLTreeBuilder* treeBuilder() const { return m_treeBuilder.get(); } |
| 122 | 122 |
| 123 void forcePlaintextForTextDocument(); | 123 void forcePlaintextForTextDocument(); |
| 124 | 124 |
| 125 private: | 125 private: |
| 126 static PassRefPtrWillBeRawPtr<HTMLDocumentParser> create(DocumentFragment* f
ragment, Element* contextElement, ParserContentPolicy parserContentPolicy) | 126 static PassRefPtrWillBeRawPtr<HTMLDocumentParser> create(DocumentFragment* f
ragment, Element* contextElement, ParserContentPolicy parserContentPolicy) |
| 127 { | 127 { |
| 128 return adoptRefWillBeNoop(new HTMLDocumentParser(fragment, contextElemen
t, parserContentPolicy)); | 128 return adoptRefWillBeNoop(new HTMLDocumentParser(fragment, contextElemen
t, parserContentPolicy)); |
| 129 } | 129 } |
| 130 | 130 |
| 131 // DocumentParser | 131 // DocumentParser |
| 132 virtual void detach() override final; | 132 void detach() final; |
| 133 virtual bool hasInsertionPoint() override final; | 133 bool hasInsertionPoint() final; |
| 134 virtual bool processingData() const override final; | 134 bool processingData() const final; |
| 135 virtual void prepareToStopParsing() override final; | 135 void prepareToStopParsing() final; |
| 136 virtual void stopParsing() override final; | 136 void stopParsing() final; |
| 137 virtual bool isWaitingForScripts() const override final; | 137 bool isWaitingForScripts() const final; |
| 138 virtual bool isExecutingScript() const override final; | 138 bool isExecutingScript() const final; |
| 139 virtual void executeScriptsWaitingForResources() override final; | 139 void executeScriptsWaitingForResources() final; |
| 140 | 140 |
| 141 // HTMLScriptRunnerHost | 141 // HTMLScriptRunnerHost |
| 142 virtual void notifyScriptLoaded(Resource*) override final; | 142 void notifyScriptLoaded(Resource*) final; |
| 143 virtual HTMLInputStream& inputStream() override final { return m_input; } | 143 HTMLInputStream& inputStream() final { return m_input; } |
| 144 virtual bool hasPreloadScanner() const override final { return m_preloadScan
ner.get() && !shouldUseThreading(); } | 144 bool hasPreloadScanner() const final { return m_preloadScanner.get() && !sho
uldUseThreading(); } |
| 145 virtual void appendCurrentInputStreamToPreloadScannerAndScan() override fina
l; | 145 void appendCurrentInputStreamToPreloadScannerAndScan() final; |
| 146 | 146 |
| 147 void startBackgroundParser(); | 147 void startBackgroundParser(); |
| 148 void stopBackgroundParser(); | 148 void stopBackgroundParser(); |
| 149 void validateSpeculations(PassOwnPtr<ParsedChunk> lastChunk); | 149 void validateSpeculations(PassOwnPtr<ParsedChunk> lastChunk); |
| 150 void discardSpeculationsAndResumeFrom(PassOwnPtr<ParsedChunk> lastChunk, Pas
sOwnPtr<HTMLToken>, PassOwnPtr<HTMLTokenizer>); | 150 void discardSpeculationsAndResumeFrom(PassOwnPtr<ParsedChunk> lastChunk, Pas
sOwnPtr<HTMLToken>, PassOwnPtr<HTMLTokenizer>); |
| 151 size_t processParsedChunkFromBackgroundParser(PassOwnPtr<ParsedChunk>); | 151 size_t processParsedChunkFromBackgroundParser(PassOwnPtr<ParsedChunk>); |
| 152 void pumpPendingSpeculations(); | 152 void pumpPendingSpeculations(); |
| 153 | 153 |
| 154 Document* contextForParsingSession(); | 154 Document* contextForParsingSession(); |
| 155 | 155 |
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| 205 bool m_haveBackgroundParser; | 205 bool m_haveBackgroundParser; |
| 206 bool m_tasksWereSuspended; | 206 bool m_tasksWereSuspended; |
| 207 unsigned m_pumpSessionNestingLevel; | 207 unsigned m_pumpSessionNestingLevel; |
| 208 unsigned m_pumpSpeculationsSessionNestingLevel; | 208 unsigned m_pumpSpeculationsSessionNestingLevel; |
| 209 bool m_isParsingAtLineNumber; | 209 bool m_isParsingAtLineNumber; |
| 210 }; | 210 }; |
| 211 | 211 |
| 212 } | 212 } |
| 213 | 213 |
| 214 #endif | 214 #endif |
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