547 lines
19 KiB
C++
547 lines
19 KiB
C++
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef nsHtml5TreeOperation_h
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#define nsHtml5TreeOperation_h
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#include "nsHtml5DocumentMode.h"
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#include "nsHtml5HtmlAttributes.h"
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#include "nsXPCOMStrings.h"
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#include "mozilla/dom/FromParser.h"
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class nsIContent;
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class nsHtml5TreeOpExecutor;
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class nsHtml5DocumentBuilder;
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enum eHtml5TreeOperation
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{
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eTreeOpUninitialized,
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// main HTML5 ops
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eTreeOpAppend,
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eTreeOpDetach,
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eTreeOpAppendChildrenToNewParent,
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eTreeOpFosterParent,
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eTreeOpAppendToDocument,
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eTreeOpAddAttributes,
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eTreeOpDocumentMode,
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eTreeOpCreateHTMLElementNetwork,
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eTreeOpCreateHTMLElementNotNetwork,
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eTreeOpCreateSVGElementNetwork,
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eTreeOpCreateSVGElementNotNetwork,
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eTreeOpCreateMathMLElement,
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eTreeOpSetFormElement,
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eTreeOpAppendText,
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eTreeOpAppendIsindexPrompt,
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eTreeOpFosterParentText,
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eTreeOpAppendComment,
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eTreeOpAppendCommentToDocument,
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eTreeOpAppendDoctypeToDocument,
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eTreeOpGetDocumentFragmentForTemplate,
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eTreeOpGetFosterParent,
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// Gecko-specific on-pop ops
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eTreeOpMarkAsBroken,
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eTreeOpRunScript,
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eTreeOpRunScriptAsyncDefer,
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eTreeOpPreventScriptExecution,
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eTreeOpDoneAddingChildren,
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eTreeOpDoneCreatingElement,
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eTreeOpSetDocumentCharset,
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eTreeOpNeedsCharsetSwitchTo,
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eTreeOpUpdateStyleSheet,
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eTreeOpProcessMeta,
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eTreeOpProcessOfflineManifest,
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eTreeOpMarkMalformedIfScript,
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eTreeOpStreamEnded,
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eTreeOpSetStyleLineNumber,
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eTreeOpSetScriptLineNumberAndFreeze,
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eTreeOpSvgLoad,
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eTreeOpMaybeComplainAboutCharset,
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eTreeOpAddClass,
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eTreeOpAddViewSourceHref,
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eTreeOpAddViewSourceBase,
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eTreeOpAddError,
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eTreeOpAddLineNumberId,
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eTreeOpStartLayout
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};
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class nsHtml5TreeOperationStringPair {
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private:
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nsString mPublicId;
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nsString mSystemId;
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public:
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nsHtml5TreeOperationStringPair(const nsAString& aPublicId,
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const nsAString& aSystemId)
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: mPublicId(aPublicId)
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, mSystemId(aSystemId)
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{
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MOZ_COUNT_CTOR(nsHtml5TreeOperationStringPair);
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}
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~nsHtml5TreeOperationStringPair()
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{
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MOZ_COUNT_DTOR(nsHtml5TreeOperationStringPair);
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}
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inline void Get(nsAString& aPublicId, nsAString& aSystemId)
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{
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aPublicId.Assign(mPublicId);
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aSystemId.Assign(mSystemId);
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}
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};
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class nsHtml5TreeOperation {
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public:
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/**
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* Atom is used inside the parser core are either static atoms that are
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* the same as Gecko-wide static atoms or they are dynamic atoms scoped by
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* both thread and parser to a particular nsHtml5AtomTable. In order to
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* such scoped atoms coming into contact with the rest of Gecko, atoms
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* that are about to exit the parser must go through this method which
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* reobtains dynamic atoms from the Gecko-global atom table.
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*
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* @param aAtom a potentially parser-scoped atom
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* @return an nsIAtom that's pointer comparable on the main thread with
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* other not-parser atoms.
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*/
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static inline already_AddRefed<nsIAtom> Reget(nsIAtom* aAtom)
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{
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if (!aAtom || aAtom->IsStaticAtom()) {
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return dont_AddRef(aAtom);
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}
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nsAutoString str;
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aAtom->ToString(str);
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return NS_AtomizeMainThread(str);
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}
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static nsresult AppendTextToTextNode(const char16_t* aBuffer,
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uint32_t aLength,
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nsIContent* aTextNode,
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nsHtml5DocumentBuilder* aBuilder);
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static nsresult AppendText(const char16_t* aBuffer,
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uint32_t aLength,
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nsIContent* aParent,
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nsHtml5DocumentBuilder* aBuilder);
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static nsresult Append(nsIContent* aNode,
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nsIContent* aParent,
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nsHtml5DocumentBuilder* aBuilder);
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static nsresult AppendToDocument(nsIContent* aNode,
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nsHtml5DocumentBuilder* aBuilder);
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static void Detach(nsIContent* aNode, nsHtml5DocumentBuilder* aBuilder);
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static nsresult AppendChildrenToNewParent(nsIContent* aNode,
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nsIContent* aParent,
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nsHtml5DocumentBuilder* aBuilder);
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static nsresult FosterParent(nsIContent* aNode,
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nsIContent* aParent,
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nsIContent* aTable,
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nsHtml5DocumentBuilder* aBuilder);
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static void SetHTMLElementAttributes(mozilla::dom::Element* aElement,
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nsIAtom* aName,
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nsHtml5HtmlAttributes* aAttributes);
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static nsresult AddAttributes(nsIContent* aNode,
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nsHtml5HtmlAttributes* aAttributes,
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nsHtml5DocumentBuilder* aBuilder);
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static nsIContent* CreateHTMLElement(
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nsIAtom* aName,
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nsHtml5HtmlAttributes* aAttributes,
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mozilla::dom::FromParser aFromParser,
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nsNodeInfoManager* aNodeInfoManager,
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nsHtml5DocumentBuilder* aBuilder,
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mozilla::dom::HTMLContentCreatorFunction aCreator);
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static nsIContent* CreateSVGElement(
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nsIAtom* aName,
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nsHtml5HtmlAttributes* aAttributes,
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mozilla::dom::FromParser aFromParser,
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nsNodeInfoManager* aNodeInfoManager,
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nsHtml5DocumentBuilder* aBuilder,
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mozilla::dom::SVGContentCreatorFunction aCreator);
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static nsIContent* CreateMathMLElement(nsIAtom* aName,
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nsHtml5HtmlAttributes* aAttributes,
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nsNodeInfoManager* aNodeInfoManager,
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nsHtml5DocumentBuilder* aBuilder);
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static void SetFormElement(nsIContent* aNode, nsIContent* aParent);
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static nsresult AppendIsindexPrompt(nsIContent* parent,
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nsHtml5DocumentBuilder* aBuilder);
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static nsresult FosterParentText(nsIContent* aStackParent,
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char16_t* aBuffer,
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uint32_t aLength,
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nsIContent* aTable,
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nsHtml5DocumentBuilder* aBuilder);
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static nsresult AppendComment(nsIContent* aParent,
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char16_t* aBuffer,
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int32_t aLength,
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nsHtml5DocumentBuilder* aBuilder);
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static nsresult AppendCommentToDocument(char16_t* aBuffer,
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int32_t aLength,
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nsHtml5DocumentBuilder* aBuilder);
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static nsresult AppendDoctypeToDocument(nsIAtom* aName,
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const nsAString& aPublicId,
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const nsAString& aSystemId,
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nsHtml5DocumentBuilder* aBuilder);
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static nsIContent* GetDocumentFragmentForTemplate(nsIContent* aNode);
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static nsIContent* GetFosterParent(nsIContent* aTable, nsIContent* aStackParent);
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static void PreventScriptExecution(nsIContent* aNode);
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static void DoneAddingChildren(nsIContent* aNode);
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static void DoneCreatingElement(nsIContent* aNode);
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static void SvgLoad(nsIContent* aNode);
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static void MarkMalformedIfScript(nsIContent* aNode);
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nsHtml5TreeOperation();
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~nsHtml5TreeOperation();
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inline void Init(eHtml5TreeOperation aOpCode)
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{
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NS_PRECONDITION(mOpCode == eTreeOpUninitialized,
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"Op code must be uninitialized when initializing.");
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mOpCode = aOpCode;
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}
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inline void Init(eHtml5TreeOperation aOpCode, nsIContentHandle* aNode)
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{
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NS_PRECONDITION(mOpCode == eTreeOpUninitialized,
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"Op code must be uninitialized when initializing.");
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NS_PRECONDITION(aNode, "Initialized tree op with null node.");
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mOpCode = aOpCode;
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mOne.node = static_cast<nsIContent**>(aNode);
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}
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inline void Init(eHtml5TreeOperation aOpCode,
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nsIContentHandle* aNode,
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nsIContentHandle* aParent)
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{
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NS_PRECONDITION(mOpCode == eTreeOpUninitialized,
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"Op code must be uninitialized when initializing.");
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NS_PRECONDITION(aNode, "Initialized tree op with null node.");
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NS_PRECONDITION(aParent, "Initialized tree op with null parent.");
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mOpCode = aOpCode;
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mOne.node = static_cast<nsIContent**>(aNode);
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mTwo.node = static_cast<nsIContent**>(aParent);
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}
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inline void Init(eHtml5TreeOperation aOpCode,
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const nsACString& aString,
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int32_t aInt32)
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{
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NS_PRECONDITION(mOpCode == eTreeOpUninitialized,
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"Op code must be uninitialized when initializing.");
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int32_t len = aString.Length();
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char* str = new char[len + 1];
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const char* start = aString.BeginReading();
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for (int32_t i = 0; i < len; ++i) {
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str[i] = start[i];
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}
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str[len] = '\0';
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mOpCode = aOpCode;
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mOne.charPtr = str;
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mFour.integer = aInt32;
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}
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inline void Init(eHtml5TreeOperation aOpCode,
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const nsACString& aString,
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int32_t aInt32,
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int32_t aLineNumber)
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{
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Init(aOpCode, aString, aInt32);
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mTwo.integer = aLineNumber;
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}
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inline void Init(eHtml5TreeOperation aOpCode,
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nsIContentHandle* aNode,
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nsIContentHandle* aParent,
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nsIContentHandle* aTable)
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{
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NS_PRECONDITION(mOpCode == eTreeOpUninitialized,
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"Op code must be uninitialized when initializing.");
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NS_PRECONDITION(aNode, "Initialized tree op with null node.");
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NS_PRECONDITION(aParent, "Initialized tree op with null parent.");
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NS_PRECONDITION(aTable, "Initialized tree op with null table.");
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mOpCode = aOpCode;
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mOne.node = static_cast<nsIContent**>(aNode);
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mTwo.node = static_cast<nsIContent**>(aParent);
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mThree.node = static_cast<nsIContent**>(aTable);
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}
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inline void Init(nsHtml5DocumentMode aMode)
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{
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NS_PRECONDITION(mOpCode == eTreeOpUninitialized,
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"Op code must be uninitialized when initializing.");
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mOpCode = eTreeOpDocumentMode;
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mOne.mode = aMode;
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}
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inline void InitScript(nsIContentHandle* aNode)
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{
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NS_PRECONDITION(mOpCode == eTreeOpUninitialized,
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"Op code must be uninitialized when initializing.");
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NS_PRECONDITION(aNode, "Initialized tree op with null node.");
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mOpCode = eTreeOpRunScript;
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mOne.node = static_cast<nsIContent**>(aNode);
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mTwo.state = nullptr;
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}
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inline void Init(int32_t aNamespace,
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nsIAtom* aName,
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nsHtml5HtmlAttributes* aAttributes,
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nsIContentHandle* aTarget,
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nsIContentHandle* aIntendedParent,
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bool aFromNetwork,
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nsHtml5ContentCreatorFunction aCreator)
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{
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NS_PRECONDITION(mOpCode == eTreeOpUninitialized,
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"Op code must be uninitialized when initializing.");
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NS_PRECONDITION(aName, "Initialized tree op with null name.");
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NS_PRECONDITION(aTarget, "Initialized tree op with null target node.");
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if (aNamespace == kNameSpaceID_XHTML) {
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mOpCode = aFromNetwork ? eTreeOpCreateHTMLElementNetwork
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: eTreeOpCreateHTMLElementNotNetwork;
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mFour.htmlCreator = aCreator.html;
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} else if (aNamespace == kNameSpaceID_SVG) {
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mOpCode = aFromNetwork ? eTreeOpCreateSVGElementNetwork
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: eTreeOpCreateSVGElementNotNetwork;
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mFour.svgCreator = aCreator.svg;
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} else {
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MOZ_ASSERT(aNamespace == kNameSpaceID_MathML);
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mOpCode = eTreeOpCreateMathMLElement;
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}
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mFive.node = static_cast<nsIContent**>(aIntendedParent);
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mOne.node = static_cast<nsIContent**>(aTarget);
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mTwo.atom = aName;
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if (aAttributes == nsHtml5HtmlAttributes::EMPTY_ATTRIBUTES) {
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mThree.attributes = nullptr;
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} else {
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mThree.attributes = aAttributes;
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}
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}
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inline void Init(eHtml5TreeOperation aOpCode,
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char16_t* aBuffer,
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int32_t aLength,
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nsIContentHandle* aStackParent,
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nsIContentHandle* aTable)
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{
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NS_PRECONDITION(mOpCode == eTreeOpUninitialized,
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"Op code must be uninitialized when initializing.");
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NS_PRECONDITION(aBuffer, "Initialized tree op with null buffer.");
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mOpCode = aOpCode;
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mOne.node = static_cast<nsIContent**>(aStackParent);
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mTwo.unicharPtr = aBuffer;
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mThree.node = static_cast<nsIContent**>(aTable);
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mFour.integer = aLength;
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}
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inline void Init(eHtml5TreeOperation aOpCode,
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char16_t* aBuffer,
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int32_t aLength,
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nsIContentHandle* aParent)
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{
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NS_PRECONDITION(mOpCode == eTreeOpUninitialized,
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"Op code must be uninitialized when initializing.");
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NS_PRECONDITION(aBuffer, "Initialized tree op with null buffer.");
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mOpCode = aOpCode;
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mOne.node = static_cast<nsIContent**>(aParent);
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mTwo.unicharPtr = aBuffer;
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mFour.integer = aLength;
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}
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inline void Init(eHtml5TreeOperation aOpCode,
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char16_t* aBuffer,
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int32_t aLength)
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{
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NS_PRECONDITION(mOpCode == eTreeOpUninitialized,
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"Op code must be uninitialized when initializing.");
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NS_PRECONDITION(aBuffer, "Initialized tree op with null buffer.");
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mOpCode = aOpCode;
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mTwo.unicharPtr = aBuffer;
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mFour.integer = aLength;
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}
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inline void Init(nsIContentHandle* aElement,
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nsHtml5HtmlAttributes* aAttributes)
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{
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NS_PRECONDITION(mOpCode == eTreeOpUninitialized,
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"Op code must be uninitialized when initializing.");
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NS_PRECONDITION(aElement, "Initialized tree op with null element.");
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mOpCode = eTreeOpAddAttributes;
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mOne.node = static_cast<nsIContent**>(aElement);
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mTwo.attributes = aAttributes;
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}
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inline void Init(nsIAtom* aName,
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const nsAString& aPublicId,
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const nsAString& aSystemId)
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{
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NS_PRECONDITION(mOpCode == eTreeOpUninitialized,
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"Op code must be uninitialized when initializing.");
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mOpCode = eTreeOpAppendDoctypeToDocument;
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mOne.atom = aName;
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mTwo.stringPair = new nsHtml5TreeOperationStringPair(aPublicId, aSystemId);
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}
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inline void Init(nsIContentHandle* aElement,
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const char* aMsgId,
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nsIAtom* aAtom,
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nsIAtom* aOtherAtom)
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{
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NS_PRECONDITION(mOpCode == eTreeOpUninitialized,
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"Op code must be uninitialized when initializing.");
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mOpCode = eTreeOpAddError;
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mOne.node = static_cast<nsIContent**>(aElement);
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mTwo.charPtr = (char*)aMsgId;
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mThree.atom = aAtom;
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mFour.atom = aOtherAtom;
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}
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inline void Init(nsIContentHandle* aElement,
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const char* aMsgId,
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nsIAtom* aAtom)
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{
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Init(aElement, aMsgId, aAtom, nullptr);
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}
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inline void Init(nsIContentHandle* aElement,
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const char* aMsgId)
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{
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Init(aElement, aMsgId, nullptr, nullptr);
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}
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inline void Init(const char* aMsgId,
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bool aError,
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int32_t aLineNumber)
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{
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NS_PRECONDITION(mOpCode == eTreeOpUninitialized,
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"Op code must be uninitialized when initializing.");
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mOpCode = eTreeOpMaybeComplainAboutCharset;
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mOne.charPtr = const_cast<char*>(aMsgId);
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mTwo.integer = aError;
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mThree.integer = aLineNumber;
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}
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inline void Init(eHtml5TreeOperation aOpCode, const nsAString& aString)
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{
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NS_PRECONDITION(mOpCode == eTreeOpUninitialized,
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"Op code must be uninitialized when initializing.");
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char16_t* str = NS_StringCloneData(aString);
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mOpCode = aOpCode;
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mOne.unicharPtr = str;
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}
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inline void Init(eHtml5TreeOperation aOpCode,
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nsIContentHandle* aNode,
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int32_t aInt)
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{
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NS_PRECONDITION(mOpCode == eTreeOpUninitialized,
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"Op code must be uninitialized when initializing.");
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NS_PRECONDITION(aNode, "Initialized tree op with null node.");
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mOpCode = aOpCode;
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mOne.node = static_cast<nsIContent**>(aNode);
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mFour.integer = aInt;
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}
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inline void Init(nsresult aRv)
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{
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NS_PRECONDITION(mOpCode == eTreeOpUninitialized,
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"Op code must be uninitialized when initializing.");
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NS_PRECONDITION(NS_FAILED(aRv), "Initialized tree op with non-failure.");
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mOpCode = eTreeOpMarkAsBroken;
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mOne.result = aRv;
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}
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inline void InitAddClass(nsIContentHandle* aNode, const char16_t* aClass)
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{
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NS_PRECONDITION(mOpCode == eTreeOpUninitialized,
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"Op code must be uninitialized when initializing.");
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NS_PRECONDITION(aNode, "Initialized tree op with null node.");
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NS_PRECONDITION(aClass, "Initialized tree op with null string.");
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// aClass must be a literal string that does not need freeing
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mOpCode = eTreeOpAddClass;
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mOne.node = static_cast<nsIContent**>(aNode);
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mTwo.unicharPtr = (char16_t*)aClass;
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}
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inline void InitAddLineNumberId(nsIContentHandle* aNode,
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const int32_t aLineNumber)
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{
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NS_PRECONDITION(mOpCode == eTreeOpUninitialized,
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"Op code must be uninitialized when initializing.");
|
|
NS_PRECONDITION(aNode, "Initialized tree op with null node.");
|
|
NS_PRECONDITION(aLineNumber > 0, "Initialized tree op with line number.");
|
|
// aClass must be a literal string that does not need freeing
|
|
mOpCode = eTreeOpAddLineNumberId;
|
|
mOne.node = static_cast<nsIContent**>(aNode);
|
|
mFour.integer = aLineNumber;
|
|
}
|
|
|
|
inline bool IsRunScript()
|
|
{
|
|
return mOpCode == eTreeOpRunScript;
|
|
}
|
|
|
|
inline bool IsMarkAsBroken()
|
|
{
|
|
return mOpCode == eTreeOpMarkAsBroken;
|
|
}
|
|
|
|
inline void SetSnapshot(nsAHtml5TreeBuilderState* aSnapshot, int32_t aLine)
|
|
{
|
|
NS_ASSERTION(IsRunScript(),
|
|
"Setting a snapshot for a tree operation other than eTreeOpRunScript!");
|
|
NS_PRECONDITION(aSnapshot, "Initialized tree op with null snapshot.");
|
|
mTwo.state = aSnapshot;
|
|
mFour.integer = aLine;
|
|
}
|
|
|
|
nsresult Perform(nsHtml5TreeOpExecutor* aBuilder,
|
|
nsIContent** aScriptElement);
|
|
|
|
private:
|
|
// possible optimization:
|
|
// Make the queue take items the size of pointer and make the op code
|
|
// decide how many operands it dequeues after it.
|
|
eHtml5TreeOperation mOpCode;
|
|
union {
|
|
nsIContent** node;
|
|
nsIAtom* atom;
|
|
nsHtml5HtmlAttributes* attributes;
|
|
nsHtml5DocumentMode mode;
|
|
char16_t* unicharPtr;
|
|
char* charPtr;
|
|
nsHtml5TreeOperationStringPair* stringPair;
|
|
nsAHtml5TreeBuilderState* state;
|
|
int32_t integer;
|
|
nsresult result;
|
|
mozilla::dom::HTMLContentCreatorFunction htmlCreator;
|
|
mozilla::dom::SVGContentCreatorFunction svgCreator;
|
|
} mOne, mTwo, mThree, mFour, mFive;
|
|
};
|
|
|
|
#endif // nsHtml5TreeOperation_h
|