Index: frontend/node_modules/espree/espree.js =================================================================== --- frontend/node_modules/espree/espree.js (revision 9af201e94b5a79beb92a30858fc54de4bc3b9449) +++ frontend/node_modules/espree/espree.js (revision 9af201e94b5a79beb92a30858fc54de4bc3b9449) @@ -0,0 +1,177 @@ +/* eslint-disable jsdoc/no-multi-asterisks -- needed to preserve original formatting of licences */ + +/** + * @fileoverview Main Espree file that converts Acorn into Esprima output. + * + * This file contains code from the following MIT-licensed projects: + * 1. Acorn + * 2. Babylon + * 3. Babel-ESLint + * + * This file also contains code from Esprima, which is BSD licensed. + * + * Acorn is Copyright 2012-2015 Acorn Contributors (https://github.com/marijnh/acorn/blob/master/AUTHORS) + * Babylon is Copyright 2014-2015 various contributors (https://github.com/babel/babel/blob/master/packages/babylon/AUTHORS) + * Babel-ESLint is Copyright 2014-2015 Sebastian McKenzie + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL BE LIABLE FOR ANY + * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + * Esprima is Copyright (c) jQuery Foundation, Inc. and Contributors, All Rights Reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL BE LIABLE FOR ANY + * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +/* eslint-enable jsdoc/no-multi-asterisks -- needed to preserve original formatting of licences */ + +import * as acorn from "acorn"; +import jsx from "acorn-jsx"; +import espree from "./lib/espree.js"; +import espreeVersion from "./lib/version.js"; +import * as visitorKeys from "eslint-visitor-keys"; +import { getLatestEcmaVersion, getSupportedEcmaVersions } from "./lib/options.js"; + + +// To initialize lazily. +const parsers = { + _regular: null, + _jsx: null, + + get regular() { + if (this._regular === null) { + this._regular = acorn.Parser.extend(espree()); + } + return this._regular; + }, + + get jsx() { + if (this._jsx === null) { + this._jsx = acorn.Parser.extend(jsx(), espree()); + } + return this._jsx; + }, + + get(options) { + const useJsx = Boolean( + options && + options.ecmaFeatures && + options.ecmaFeatures.jsx + ); + + return useJsx ? this.jsx : this.regular; + } +}; + +//------------------------------------------------------------------------------ +// Tokenizer +//------------------------------------------------------------------------------ + +/** + * Tokenizes the given code. + * @param {string} code The code to tokenize. + * @param {Object} options Options defining how to tokenize. + * @returns {Token[]} An array of tokens. + * @throws {SyntaxError} If the input code is invalid. + * @private + */ +export function tokenize(code, options) { + const Parser = parsers.get(options); + + // Ensure to collect tokens. + if (!options || options.tokens !== true) { + options = Object.assign({}, options, { tokens: true }); // eslint-disable-line no-param-reassign -- stylistic choice + } + + return new Parser(options, code).tokenize(); +} + +//------------------------------------------------------------------------------ +// Parser +//------------------------------------------------------------------------------ + +/** + * Parses the given code. + * @param {string} code The code to tokenize. + * @param {Object} options Options defining how to tokenize. + * @returns {ASTNode} The "Program" AST node. + * @throws {SyntaxError} If the input code is invalid. + */ +export function parse(code, options) { + const Parser = parsers.get(options); + + return new Parser(options, code).parse(); +} + +//------------------------------------------------------------------------------ +// Public +//------------------------------------------------------------------------------ + +export const version = espreeVersion; +export const name = "espree"; + +/* istanbul ignore next */ +export const VisitorKeys = (function() { + return visitorKeys.KEYS; +}()); + +// Derive node types from VisitorKeys +/* istanbul ignore next */ +export const Syntax = (function() { + let key, + types = {}; + + if (typeof Object.create === "function") { + types = Object.create(null); + } + + for (key in VisitorKeys) { + if (Object.hasOwnProperty.call(VisitorKeys, key)) { + types[key] = key; + } + } + + if (typeof Object.freeze === "function") { + Object.freeze(types); + } + + return types; +}()); + +export const latestEcmaVersion = getLatestEcmaVersion(); + +export const supportedEcmaVersions = getSupportedEcmaVersions();