mirror of
https://github.com/crazy-max/ghaction-upx.git
synced 2024-11-26 20:26:09 -07:00
223 lines
8.3 KiB
JavaScript
223 lines
8.3 KiB
JavaScript
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'use strict';
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const Mixin = require('../../utils/mixin');
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const Tokenizer = require('../../tokenizer');
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const LocationInfoTokenizerMixin = require('./tokenizer-mixin');
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const LocationInfoOpenElementStackMixin = require('./open-element-stack-mixin');
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const HTML = require('../../common/html');
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//Aliases
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const $ = HTML.TAG_NAMES;
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class LocationInfoParserMixin extends Mixin {
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constructor(parser) {
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super(parser);
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this.parser = parser;
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this.treeAdapter = this.parser.treeAdapter;
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this.posTracker = null;
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this.lastStartTagToken = null;
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this.lastFosterParentingLocation = null;
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this.currentToken = null;
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}
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_setStartLocation(element) {
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let loc = null;
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if (this.lastStartTagToken) {
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loc = Object.assign({}, this.lastStartTagToken.location);
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loc.startTag = this.lastStartTagToken.location;
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}
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this.treeAdapter.setNodeSourceCodeLocation(element, loc);
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}
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_setEndLocation(element, closingToken) {
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const loc = this.treeAdapter.getNodeSourceCodeLocation(element);
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if (loc) {
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if (closingToken.location) {
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const ctLoc = closingToken.location;
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const tn = this.treeAdapter.getTagName(element);
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// NOTE: For cases like <p> <p> </p> - First 'p' closes without a closing
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// tag and for cases like <td> <p> </td> - 'p' closes without a closing tag.
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const isClosingEndTag = closingToken.type === Tokenizer.END_TAG_TOKEN && tn === closingToken.tagName;
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if (isClosingEndTag) {
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loc.endTag = Object.assign({}, ctLoc);
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loc.endLine = ctLoc.endLine;
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loc.endCol = ctLoc.endCol;
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loc.endOffset = ctLoc.endOffset;
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} else {
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loc.endLine = ctLoc.startLine;
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loc.endCol = ctLoc.startCol;
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loc.endOffset = ctLoc.startOffset;
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}
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}
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}
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}
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_getOverriddenMethods(mxn, orig) {
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return {
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_bootstrap(document, fragmentContext) {
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orig._bootstrap.call(this, document, fragmentContext);
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mxn.lastStartTagToken = null;
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mxn.lastFosterParentingLocation = null;
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mxn.currentToken = null;
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const tokenizerMixin = Mixin.install(this.tokenizer, LocationInfoTokenizerMixin);
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mxn.posTracker = tokenizerMixin.posTracker;
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Mixin.install(this.openElements, LocationInfoOpenElementStackMixin, {
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onItemPop: function(element) {
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mxn._setEndLocation(element, mxn.currentToken);
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}
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});
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},
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_runParsingLoop(scriptHandler) {
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orig._runParsingLoop.call(this, scriptHandler);
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// NOTE: generate location info for elements
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// that remains on open element stack
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for (let i = this.openElements.stackTop; i >= 0; i--) {
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mxn._setEndLocation(this.openElements.items[i], mxn.currentToken);
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}
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},
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//Token processing
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_processTokenInForeignContent(token) {
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mxn.currentToken = token;
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orig._processTokenInForeignContent.call(this, token);
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},
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_processToken(token) {
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mxn.currentToken = token;
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orig._processToken.call(this, token);
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//NOTE: <body> and <html> are never popped from the stack, so we need to updated
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//their end location explicitly.
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const requireExplicitUpdate =
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token.type === Tokenizer.END_TAG_TOKEN &&
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(token.tagName === $.HTML || (token.tagName === $.BODY && this.openElements.hasInScope($.BODY)));
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if (requireExplicitUpdate) {
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for (let i = this.openElements.stackTop; i >= 0; i--) {
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const element = this.openElements.items[i];
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if (this.treeAdapter.getTagName(element) === token.tagName) {
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mxn._setEndLocation(element, token);
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break;
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}
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}
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}
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},
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//Doctype
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_setDocumentType(token) {
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orig._setDocumentType.call(this, token);
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const documentChildren = this.treeAdapter.getChildNodes(this.document);
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const cnLength = documentChildren.length;
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for (let i = 0; i < cnLength; i++) {
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const node = documentChildren[i];
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if (this.treeAdapter.isDocumentTypeNode(node)) {
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this.treeAdapter.setNodeSourceCodeLocation(node, token.location);
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break;
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}
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}
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},
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//Elements
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_attachElementToTree(element) {
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//NOTE: _attachElementToTree is called from _appendElement, _insertElement and _insertTemplate methods.
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//So we will use token location stored in this methods for the element.
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mxn._setStartLocation(element);
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mxn.lastStartTagToken = null;
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orig._attachElementToTree.call(this, element);
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},
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_appendElement(token, namespaceURI) {
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mxn.lastStartTagToken = token;
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orig._appendElement.call(this, token, namespaceURI);
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},
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_insertElement(token, namespaceURI) {
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mxn.lastStartTagToken = token;
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orig._insertElement.call(this, token, namespaceURI);
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},
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_insertTemplate(token) {
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mxn.lastStartTagToken = token;
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orig._insertTemplate.call(this, token);
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const tmplContent = this.treeAdapter.getTemplateContent(this.openElements.current);
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this.treeAdapter.setNodeSourceCodeLocation(tmplContent, null);
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},
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_insertFakeRootElement() {
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orig._insertFakeRootElement.call(this);
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this.treeAdapter.setNodeSourceCodeLocation(this.openElements.current, null);
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},
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//Comments
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_appendCommentNode(token, parent) {
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orig._appendCommentNode.call(this, token, parent);
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const children = this.treeAdapter.getChildNodes(parent);
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const commentNode = children[children.length - 1];
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this.treeAdapter.setNodeSourceCodeLocation(commentNode, token.location);
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},
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//Text
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_findFosterParentingLocation() {
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//NOTE: store last foster parenting location, so we will be able to find inserted text
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//in case of foster parenting
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mxn.lastFosterParentingLocation = orig._findFosterParentingLocation.call(this);
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return mxn.lastFosterParentingLocation;
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},
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_insertCharacters(token) {
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orig._insertCharacters.call(this, token);
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const hasFosterParent = this._shouldFosterParentOnInsertion();
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const parent =
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(hasFosterParent && mxn.lastFosterParentingLocation.parent) ||
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this.openElements.currentTmplContent ||
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this.openElements.current;
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const siblings = this.treeAdapter.getChildNodes(parent);
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const textNodeIdx =
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hasFosterParent && mxn.lastFosterParentingLocation.beforeElement
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? siblings.indexOf(mxn.lastFosterParentingLocation.beforeElement) - 1
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: siblings.length - 1;
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const textNode = siblings[textNodeIdx];
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//NOTE: if we have location assigned by another token, then just update end position
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const tnLoc = this.treeAdapter.getNodeSourceCodeLocation(textNode);
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if (tnLoc) {
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tnLoc.endLine = token.location.endLine;
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tnLoc.endCol = token.location.endCol;
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tnLoc.endOffset = token.location.endOffset;
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} else {
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this.treeAdapter.setNodeSourceCodeLocation(textNode, token.location);
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}
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}
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};
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}
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}
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module.exports = LocationInfoParserMixin;
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