+++ /dev/null
-/**
- * @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 <sebmck@gmail.com>
- *
- * 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 <COPYRIGHT HOLDER> 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 <COPYRIGHT HOLDER> 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 no-undefined:0, no-use-before-define: 0 */
-
-"use strict";
-
-const acorn = require("acorn");
-const jsx = require("acorn-jsx");
-const astNodeTypes = require("./lib/ast-node-types");
-const espree = require("./lib/espree");
-const { getLatestEcmaVersion, getSupportedEcmaVersions } = require("./lib/options");
-
-// 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
- */
-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
- }
-
- 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.
- */
-function parse(code, options) {
- const Parser = parsers.get(options);
-
- return new Parser(options, code).parse();
-}
-
-//------------------------------------------------------------------------------
-// Public
-//------------------------------------------------------------------------------
-
-exports.version = require("./package.json").version;
-
-exports.tokenize = tokenize;
-
-exports.parse = parse;
-
-// Deep copy.
-/* istanbul ignore next */
-exports.Syntax = (function() {
- let name,
- types = {};
-
- if (typeof Object.create === "function") {
- types = Object.create(null);
- }
-
- for (name in astNodeTypes) {
- if (Object.hasOwnProperty.call(astNodeTypes, name)) {
- types[name] = astNodeTypes[name];
- }
- }
-
- if (typeof Object.freeze === "function") {
- Object.freeze(types);
- }
-
- return types;
-}());
-
-/* istanbul ignore next */
-exports.VisitorKeys = (function() {
- return require("eslint-visitor-keys").KEYS;
-}());
-
-exports.latestEcmaVersion = getLatestEcmaVersion();
-
-exports.supportedEcmaVersions = getSupportedEcmaVersions();
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