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LocationInfoTokenizerMixin(this.tokenizer);\n\n new LocationInfoOpenElementStackMixin(this.openElements, {\n onItemPop: function (element) {\n mxn._setEndLocation(element, mxn.currentToken);\n }\n });\n },\n\n _runParsingLoop: function (scriptHandler) {\n orig._runParsingLoop.call(this, scriptHandler);\n\n // NOTE: generate location info for elements\n // that remains on open element stack\n for (var i = this.openElements.stackTop; i >= 0; i--)\n mxn._setEndLocation(this.openElements.items[i], mxn.currentToken);\n },\n\n\n //Token processing\n _processTokenInForeignContent: function (token) {\n mxn.currentToken = token;\n orig._processTokenInForeignContent.call(this, token);\n },\n\n _processToken: function (token) {\n mxn.currentToken = token;\n orig._processToken.call(this, token);\n\n //NOTE: <body> and <html> are never popped from the stack, so we need to updated\n //their end location explicitly.\n var requireExplicitUpdate = token.type === Tokenizer.END_TAG_TOKEN &&\n 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strict';\n\nvar Mixin = require('../../utils/mixin'),\n Tokenizer = require('../../tokenizer'),\n LocationInfoTokenizerMixin = require('./tokenizer_mixin'),\n PositionTrackingPreprocessorMixin = require('../position_tracking/preprocessor_mixin'),\n LocationInfoOpenElementStackMixin = require('./open_element_stack_mixin'),\n HTML = require('../../common/html'),\n inherits = require('util').inherits;\n\n\n//Aliases\nvar $ = HTML.TAG_NAMES;\n\nvar LocationInfoParserMixin = module.exports = function (parser) {\n Mixin.call(this, parser);\n\n this.parser = parser;\n this.posTracker = null;\n this.lastStartTagToken = null;\n this.lastFosterParentingLocation = null;\n this.currentToken = null;\n};\n\ninherits(LocationInfoParserMixin, Mixin);\n\n\nLocationInfoParserMixin.prototype._setStartLocation = function (element) {\n if (this.lastStartTagToken) {\n element.__location = Object.create(this.lastStartTagToken.location);\n element.__location.startTag = this.lastStartTagToken.location;\n }\n else\n element.__location = null;\n};\n\nLocationInfoParserMixin.prototype._setEndLocation = function (element, closingToken) {\n var loc = element.__location;\n\n if (loc) {\n if (closingToken.location) {\n var ctLoc = closingToken.location,\n tn = this.parser.treeAdapter.getTagName(element);\n\n // NOTE: For cases like <p> <p> </p> - First 'p' closes without a closing\n // tag and for cases like <td> <p> </td> - 'p' closes without a closing tag.\n var isClosingEndTag = closingToken.type === Tokenizer.END_TAG_TOKEN && tn === closingToken.tagName;\n\n if (isClosingEndTag) {\n loc.endTag = Object.create(ctLoc);\n loc.endOffset = ctLoc.endOffset;\n }\n\n else\n loc.endOffset = ctLoc.startOffset;\n }\n\n else if (closingToken.type === Tokenizer.EOF_TOKEN)\n loc.endOffset = this.posTracker.offset;\n }\n};\n\nLocationInfoParserMixin.prototype._getOverriddenMethods = function (mxn, orig) {\n return {\n _bootstrap: function (document, fragmentContext) {\n orig._bootstrap.call(this, document, fragmentContext);\n\n mxn.lastStartTagToken = null;\n mxn.lastFosterParentingLocation = null;\n mxn.currentToken = null;\n mxn.posTracker = new PositionTrackingPreprocessorMixin(this.tokenizer.preprocessor);\n\n new LocationInfoTokenizerMixin(this.tokenizer);\n\n new LocationInfoOpenElementStackMixin(this.openElements, {\n onItemPop: function (element) {\n mxn._setEndLocation(element, mxn.currentToken);\n }\n });\n },\n\n _runParsingLoop: function (scriptHandler) {\n orig._runParsingLoop.call(this, scriptHandler);\n\n // NOTE: generate location info for elements\n // that remains on open element stack\n for (var i = this.openElements.stackTop; i >= 0; i--)\n mxn._setEndLocation(this.openElements.items[i], mxn.currentToken);\n },\n\n\n //Token processing\n _processTokenInForeignContent: function (token) {\n mxn.currentToken = token;\n orig._processTokenInForeignContent.call(this, token);\n },\n\n _processToken: function (token) {\n mxn.currentToken = token;\n orig._processToken.call(this, token);\n\n //NOTE: <body> and <html> are never popped from the stack, so we need to updated\n //their end location explicitly.\n var requireExplicitUpdate = token.type === Tokenizer.END_TAG_TOKEN &&\n (token.tagName === $.HTML ||\n token.tagName === $.BODY && this.openElements.hasInScope($.BODY));\n\n if (requireExplicitUpdate) {\n for (var i = this.openElements.stackTop; i >= 0; i--) {\n var element = this.openElements.items[i];\n\n if (this.treeAdapter.getTagName(element) === token.tagName) {\n mxn._setEndLocation(element, token);\n break;\n }\n }\n }\n },\n\n\n //Doctype\n _setDocumentType: function (token) {\n orig._setDocumentType.call(this, token);\n\n var documentChildren = this.treeAdapter.getChildNodes(this.document),\n cnLength = documentChildren.length;\n\n for (var i = 0; i < cnLength; i++) {\n var node = documentChildren[i];\n\n if (this.treeAdapter.isDocumentTypeNode(node)) {\n node.__location = token.location;\n break;\n }\n }\n },\n\n\n //Elements\n _attachElementToTree: function (element) {\n //NOTE: _attachElementToTree is called from _appendElement, _insertElement and _insertTemplate methods.\n //So we will use token location stored in this methods for the element.\n mxn._setStartLocation(element);\n mxn.lastStartTagToken = null;\n orig._attachElementToTree.call(this, element);\n },\n\n _appendElement: function (token, namespaceURI) {\n mxn.lastStartTagToken = token;\n orig._appendElement.call(this, token, namespaceURI);\n },\n\n _insertElement: function (token, namespaceURI) {\n mxn.lastStartTagToken = token;\n orig._insertElement.call(this, token, namespaceURI);\n },\n\n _insertTemplate: function (token) {\n mxn.lastStartTagToken = token;\n orig._insertTemplate.call(this, token);\n\n var tmplContent = this.treeAdapter.getTemplateContent(this.openElements.current);\n\n tmplContent.__location = null;\n },\n\n _insertFakeRootElement: function () {\n orig._insertFakeRootElement.call(this);\n this.openElements.current.__location = null;\n },\n\n //Comments\n _appendCommentNode: function (token, parent) {\n orig._appendCommentNode.call(this, token, parent);\n\n var children = this.treeAdapter.getChildNodes(parent),\n commentNode = children[children.length - 1];\n\n commentNode.__location = token.location;\n },\n\n //Text\n _findFosterParentingLocation: function () {\n //NOTE: store last foster parenting location, so we will be able to find inserted text\n //in case of foster parenting\n mxn.lastFosterParentingLocation = orig._findFosterParentingLocation.call(this);\n\n return mxn.lastFosterParentingLocation;\n },\n\n _insertCharacters: function (token) {\n orig._insertCharacters.call(this, token);\n\n var hasFosterParent = this._shouldFosterParentOnInsertion(),\n parent = hasFosterParent && mxn.lastFosterParentingLocation.parent ||\n this.openElements.currentTmplContent ||\n this.openElements.current,\n siblings = this.treeAdapter.getChildNodes(parent),\n textNodeIdx = 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