mirror of
https://github.com/actions/setup-python.git
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214 lines
7.6 KiB
JavaScript
214 lines
7.6 KiB
JavaScript
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'use strict';
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var Mixin = require('../../utils/mixin'),
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Tokenizer = require('../../tokenizer'),
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LocationInfoTokenizerMixin = require('./tokenizer_mixin'),
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PositionTrackingPreprocessorMixin = require('../position_tracking/preprocessor_mixin'),
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LocationInfoOpenElementStackMixin = require('./open_element_stack_mixin'),
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HTML = require('../../common/html'),
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inherits = require('util').inherits;
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//Aliases
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var $ = HTML.TAG_NAMES;
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var LocationInfoParserMixin = module.exports = function (parser) {
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Mixin.call(this, parser);
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this.parser = parser;
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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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inherits(LocationInfoParserMixin, Mixin);
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LocationInfoParserMixin.prototype._setStartLocation = function (element) {
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if (this.lastStartTagToken) {
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element.__location = Object.create(this.lastStartTagToken.location);
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element.__location.startTag = this.lastStartTagToken.location;
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}
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else
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element.__location = null;
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};
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LocationInfoParserMixin.prototype._setEndLocation = function (element, closingToken) {
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var loc = element.__location;
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if (loc) {
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if (closingToken.location) {
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var ctLoc = closingToken.location,
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tn = this.parser.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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var isClosingEndTag = closingToken.type === Tokenizer.END_TAG_TOKEN && tn === closingToken.tagName;
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if (isClosingEndTag) {
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loc.endTag = Object.create(ctLoc);
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loc.endOffset = ctLoc.endOffset;
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}
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else
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loc.endOffset = ctLoc.startOffset;
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}
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else if (closingToken.type === Tokenizer.EOF_TOKEN)
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loc.endOffset = this.posTracker.offset;
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}
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};
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LocationInfoParserMixin.prototype._getOverriddenMethods = function (mxn, orig) {
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return {
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_bootstrap: function (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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mxn.posTracker = new PositionTrackingPreprocessorMixin(this.tokenizer.preprocessor);
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new LocationInfoTokenizerMixin(this.tokenizer);
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new LocationInfoOpenElementStackMixin(this.openElements, {
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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: function (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 (var 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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//Token processing
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_processTokenInForeignContent: function (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: function (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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var requireExplicitUpdate = token.type === Tokenizer.END_TAG_TOKEN &&
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(token.tagName === $.HTML ||
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token.tagName === $.BODY && this.openElements.hasInScope($.BODY));
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if (requireExplicitUpdate) {
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for (var i = this.openElements.stackTop; i >= 0; i--) {
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var 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: function (token) {
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orig._setDocumentType.call(this, token);
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var documentChildren = this.treeAdapter.getChildNodes(this.document),
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cnLength = documentChildren.length;
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for (var i = 0; i < cnLength; i++) {
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var node = documentChildren[i];
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if (this.treeAdapter.isDocumentTypeNode(node)) {
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node.__location = 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: function (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: function (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: function (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: function (token) {
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mxn.lastStartTagToken = token;
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orig._insertTemplate.call(this, token);
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var tmplContent = this.treeAdapter.getTemplateContent(this.openElements.current);
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tmplContent.__location = null;
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},
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_insertFakeRootElement: function () {
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orig._insertFakeRootElement.call(this);
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this.openElements.current.__location = null;
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},
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//Comments
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_appendCommentNode: function (token, parent) {
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orig._appendCommentNode.call(this, token, parent);
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var children = this.treeAdapter.getChildNodes(parent),
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commentNode = children[children.length - 1];
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commentNode.__location = token.location;
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},
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//Text
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_findFosterParentingLocation: function () {
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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: function (token) {
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orig._insertCharacters.call(this, token);
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var hasFosterParent = this._shouldFosterParentOnInsertion(),
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parent = hasFosterParent && mxn.lastFosterParentingLocation.parent ||
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this.openElements.currentTmplContent ||
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this.openElements.current,
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siblings = this.treeAdapter.getChildNodes(parent),
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textNodeIdx = 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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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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if (textNode.__location)
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textNode.__location.endOffset = token.location.endOffset;
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else
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textNode.__location = token.location;
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}
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};
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};
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