diff options
Diffstat (limited to 'deps/npm/node_modules/readable-stream/node_modules/inline-process-browser/node_modules/falafel/node_modules/acorn/dist/acorn_csp.js')
| -rw-r--r-- | deps/npm/node_modules/readable-stream/node_modules/inline-process-browser/node_modules/falafel/node_modules/acorn/dist/acorn_csp.js | 3985 |
1 files changed, 0 insertions, 3985 deletions
diff --git a/deps/npm/node_modules/readable-stream/node_modules/inline-process-browser/node_modules/falafel/node_modules/acorn/dist/acorn_csp.js b/deps/npm/node_modules/readable-stream/node_modules/inline-process-browser/node_modules/falafel/node_modules/acorn/dist/acorn_csp.js deleted file mode 100644 index 47ebea4e4f..0000000000 --- a/deps/npm/node_modules/readable-stream/node_modules/inline-process-browser/node_modules/falafel/node_modules/acorn/dist/acorn_csp.js +++ /dev/null @@ -1,3985 +0,0 @@ -(function(f){if(typeof exports==="object"&&typeof module!=="undefined"){module.exports=f()}else if(typeof define==="function"&&define.amd){define([],f)}else{var g;if(typeof window!=="undefined"){g=window}else if(typeof global!=="undefined"){g=global}else if(typeof self!=="undefined"){g=self}else{g=this}g.acorn = f()}})(function(){var define,module,exports;return (function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})({1:[function(_dereq_,module,exports){ - - -// The main exported interface (under `self.acorn` when in the -// browser) is a `parse` function that takes a code string and -// returns an abstract syntax tree as specified by [Mozilla parser -// API][api]. -// -// [api]: https://developer.mozilla.org/en-US/docs/SpiderMonkey/Parser_API - -"use strict"; - -exports.parse = parse; - -// This function tries to parse a single expression at a given -// offset in a string. Useful for parsing mixed-language formats -// that embed JavaScript expressions. - -exports.parseExpressionAt = parseExpressionAt; - -// Acorn is organized as a tokenizer and a recursive-descent parser. -// The `tokenize` export provides an interface to the tokenizer. - -exports.tokenizer = tokenizer; -exports.__esModule = true; -// Acorn is a tiny, fast JavaScript parser written in JavaScript. -// -// Acorn was written by Marijn Haverbeke, Ingvar Stepanyan, and -// various contributors and released under an MIT license. -// -// Git repositories for Acorn are available at -// -// http://marijnhaverbeke.nl/git/acorn -// https://github.com/marijnh/acorn.git -// -// Please use the [github bug tracker][ghbt] to report issues. -// -// [ghbt]: https://github.com/marijnh/acorn/issues -// -// This file defines the main parser interface. The library also comes -// with a [error-tolerant parser][dammit] and an -// [abstract syntax tree walker][walk], defined in other files. -// -// [dammit]: acorn_loose.js -// [walk]: util/walk.js - -var _state = _dereq_("./state"); - -var Parser = _state.Parser; - -var _options = _dereq_("./options"); - -var getOptions = _options.getOptions; - -_dereq_("./parseutil"); - -_dereq_("./statement"); - -_dereq_("./lval"); - -_dereq_("./expression"); - -exports.Parser = _state.Parser; -exports.plugins = _state.plugins; -exports.defaultOptions = _options.defaultOptions; - -var _location = _dereq_("./location"); - -exports.SourceLocation = _location.SourceLocation; -exports.getLineInfo = _location.getLineInfo; -exports.Node = _dereq_("./node").Node; - -var _tokentype = _dereq_("./tokentype"); - -exports.TokenType = _tokentype.TokenType; -exports.tokTypes = _tokentype.types; - -var _tokencontext = _dereq_("./tokencontext"); - -exports.TokContext = _tokencontext.TokContext; -exports.tokContexts = _tokencontext.types; - -var _identifier = _dereq_("./identifier"); - -exports.isIdentifierChar = _identifier.isIdentifierChar; -exports.isIdentifierStart = _identifier.isIdentifierStart; -exports.Token = _dereq_("./tokenize").Token; - -var _whitespace = _dereq_("./whitespace"); - -exports.isNewLine = _whitespace.isNewLine; -exports.lineBreak = _whitespace.lineBreak; -exports.lineBreakG = _whitespace.lineBreakG; -var version = "1.2.2";exports.version = version; - -function parse(input, options) { - var p = parser(options, input); - var startPos = p.pos, - startLoc = p.options.locations && p.curPosition(); - p.nextToken(); - return p.parseTopLevel(p.options.program || p.startNodeAt(startPos, startLoc)); -} - -function parseExpressionAt(input, pos, options) { - var p = parser(options, input, pos); - p.nextToken(); - return p.parseExpression(); -} - -function tokenizer(input, options) { - return parser(options, input); -} - -function parser(options, input) { - return new Parser(getOptions(options), String(input)); -} - -},{"./expression":6,"./identifier":7,"./location":8,"./lval":9,"./node":10,"./options":11,"./parseutil":12,"./state":13,"./statement":14,"./tokencontext":15,"./tokenize":16,"./tokentype":17,"./whitespace":19}],2:[function(_dereq_,module,exports){ -if (typeof Object.create === 'function') { - // implementation from standard node.js 'util' module - module.exports = function inherits(ctor, superCtor) { - ctor.super_ = superCtor - ctor.prototype = Object.create(superCtor.prototype, { - constructor: { - value: ctor, - enumerable: false, - writable: true, - configurable: true - } - }); - }; -} else { - // old school shim for old browsers - module.exports = function inherits(ctor, superCtor) { - ctor.super_ = superCtor - var TempCtor = function () {} - TempCtor.prototype = superCtor.prototype - ctor.prototype = new TempCtor() - ctor.prototype.constructor = ctor - } -} - -},{}],3:[function(_dereq_,module,exports){ -// shim for using process in browser - -var process = module.exports = {}; -var queue = []; -var draining = false; - -function drainQueue() { - if (draining) { - return; - } - draining = true; - var currentQueue; - var len = queue.length; - while(len) { - currentQueue = queue; - queue = []; - var i = -1; - while (++i < len) { - currentQueue[i](); - } - len = queue.length; - } - draining = false; -} -process.nextTick = function (fun) { - queue.push(fun); - if (!draining) { - setTimeout(drainQueue, 0); - } -}; - -process.title = 'browser'; -process.browser = true; -process.env = {}; -process.argv = []; -process.version = ''; // empty string to avoid regexp issues -process.versions = {}; - -function noop() {} - -process.on = noop; -process.addListener = noop; -process.once = noop; -process.off = noop; -process.removeListener = noop; -process.removeAllListeners = noop; -process.emit = noop; - -process.binding = function (name) { - throw new Error('process.binding is not supported'); -}; - -// TODO(shtylman) -process.cwd = function () { return '/' }; -process.chdir = function (dir) { - throw new Error('process.chdir is not supported'); -}; -process.umask = function() { return 0; }; - -},{}],4:[function(_dereq_,module,exports){ -module.exports = function isBuffer(arg) { - return arg && typeof arg === 'object' - && typeof arg.copy === 'function' - && typeof arg.fill === 'function' - && typeof arg.readUInt8 === 'function'; -} -},{}],5:[function(_dereq_,module,exports){ -(function (process,global){ -// Copyright Joyent, Inc. and other Node contributors. -// -// Permission is hereby granted, free of charge, to any person obtaining a -// copy of this software and associated documentation files (the -// "Software"), to deal in the Software without restriction, including -// without limitation the rights to use, copy, modify, merge, publish, -// distribute, sublicense, and/or sell copies of the Software, and to permit -// persons to whom the Software is furnished to do so, subject to the -// following conditions: -// -// The above copyright notice and this permission notice shall be included -// in all copies or substantial portions of the Software. -// -// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS -// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF -// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN -// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, -// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR -// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE -// USE OR OTHER DEALINGS IN THE SOFTWARE. - -var formatRegExp = /%[sdj%]/g; -exports.format = function(f) { - if (!isString(f)) { - var objects = []; - for (var i = 0; i < arguments.length; i++) { - objects.push(inspect(arguments[i])); - } - return objects.join(' '); - } - - var i = 1; - var args = arguments; - var len = args.length; - var str = String(f).replace(formatRegExp, function(x) { - if (x === '%%') return '%'; - if (i >= len) return x; - switch (x) { - case '%s': return String(args[i++]); - case '%d': return Number(args[i++]); - case '%j': - try { - return JSON.stringify(args[i++]); - } catch (_) { - return '[Circular]'; - } - default: - return x; - } - }); - for (var x = args[i]; i < len; x = args[++i]) { - if (isNull(x) || !isObject(x)) { - str += ' ' + x; - } else { - str += ' ' + inspect(x); - } - } - return str; -}; - - -// Mark that a method should not be used. -// Returns a modified function which warns once by default. -// If --no-deprecation is set, then it is a no-op. -exports.deprecate = function(fn, msg) { - // Allow for deprecating things in the process of starting up. - if (isUndefined(global.process)) { - return function() { - return exports.deprecate(fn, msg).apply(this, arguments); - }; - } - - if (process.noDeprecation === true) { - return fn; - } - - var warned = false; - function deprecated() { - if (!warned) { - if (process.throwDeprecation) { - throw new Error(msg); - } else if (process.traceDeprecation) { - console.trace(msg); - } else { - console.error(msg); - } - warned = true; - } - return fn.apply(this, arguments); - } - - return deprecated; -}; - - -var debugs = {}; -var debugEnviron; -exports.debuglog = function(set) { - if (isUndefined(debugEnviron)) - debugEnviron = process.env.NODE_DEBUG || ''; - set = set.toUpperCase(); - if (!debugs[set]) { - if (new RegExp('\\b' + set + '\\b', 'i').test(debugEnviron)) { - var pid = process.pid; - debugs[set] = function() { - var msg = exports.format.apply(exports, arguments); - console.error('%s %d: %s', set, pid, msg); - }; - } else { - debugs[set] = function() {}; - } - } - return debugs[set]; -}; - - -/** - * Echos the value of a value. Trys to print the value out - * in the best way possible given the different types. - * - * @param {Object} obj The object to print out. - * @param {Object} opts Optional options object that alters the output. - */ -/* legacy: obj, showHidden, depth, colors*/ -function inspect(obj, opts) { - // default options - var ctx = { - seen: [], - stylize: stylizeNoColor - }; - // legacy... - if (arguments.length >= 3) ctx.depth = arguments[2]; - if (arguments.length >= 4) ctx.colors = arguments[3]; - if (isBoolean(opts)) { - // legacy... - ctx.showHidden = opts; - } else if (opts) { - // got an "options" object - exports._extend(ctx, opts); - } - // set default options - if (isUndefined(ctx.showHidden)) ctx.showHidden = false; - if (isUndefined(ctx.depth)) ctx.depth = 2; - if (isUndefined(ctx.colors)) ctx.colors = false; - if (isUndefined(ctx.customInspect)) ctx.customInspect = true; - if (ctx.colors) ctx.stylize = stylizeWithColor; - return formatValue(ctx, obj, ctx.depth); -} -exports.inspect = inspect; - - -// http://en.wikipedia.org/wiki/ANSI_escape_code#graphics -inspect.colors = { - 'bold' : [1, 22], - 'italic' : [3, 23], - 'underline' : [4, 24], - 'inverse' : [7, 27], - 'white' : [37, 39], - 'grey' : [90, 39], - 'black' : [30, 39], - 'blue' : [34, 39], - 'cyan' : [36, 39], - 'green' : [32, 39], - 'magenta' : [35, 39], - 'red' : [31, 39], - 'yellow' : [33, 39] -}; - -// Don't use 'blue' not visible on cmd.exe -inspect.styles = { - 'special': 'cyan', - 'number': 'yellow', - 'boolean': 'yellow', - 'undefined': 'grey', - 'null': 'bold', - 'string': 'green', - 'date': 'magenta', - // "name": intentionally not styling - 'regexp': 'red' -}; - - -function stylizeWithColor(str, styleType) { - var style = inspect.styles[styleType]; - - if (style) { - return '\u001b[' + inspect.colors[style][0] + 'm' + str + - '\u001b[' + inspect.colors[style][1] + 'm'; - } else { - return str; - } -} - - -function stylizeNoColor(str, styleType) { - return str; -} - - -function arrayToHash(array) { - var hash = {}; - - array.forEach(function(val, idx) { - hash[val] = true; - }); - - return hash; -} - - -function formatValue(ctx, value, recurseTimes) { - // Provide a hook for user-specified inspect functions. - // Check that value is an object with an inspect function on it - if (ctx.customInspect && - value && - isFunction(value.inspect) && - // Filter out the util module, it's inspect function is special - value.inspect !== exports.inspect && - // Also filter out any prototype objects using the circular check. - !(value.constructor && value.constructor.prototype === value)) { - var ret = value.inspect(recurseTimes, ctx); - if (!isString(ret)) { - ret = formatValue(ctx, ret, recurseTimes); - } - return ret; - } - - // Primitive types cannot have properties - var primitive = formatPrimitive(ctx, value); - if (primitive) { - return primitive; - } - - // Look up the keys of the object. - var keys = Object.keys(value); - var visibleKeys = arrayToHash(keys); - - if (ctx.showHidden) { - keys = Object.getOwnPropertyNames(value); - } - - // IE doesn't make error fields non-enumerable - // http://msdn.microsoft.com/en-us/library/ie/dww52sbt(v=vs.94).aspx - if (isError(value) - && (keys.indexOf('message') >= 0 || keys.indexOf('description') >= 0)) { - return formatError(value); - } - - // Some type of object without properties can be shortcutted. - if (keys.length === 0) { - if (isFunction(value)) { - var name = value.name ? ': ' + value.name : ''; - return ctx.stylize('[Function' + name + ']', 'special'); - } - if (isRegExp(value)) { - return ctx.stylize(RegExp.prototype.toString.call(value), 'regexp'); - } - if (isDate(value)) { - return ctx.stylize(Date.prototype.toString.call(value), 'date'); - } - if (isError(value)) { - return formatError(value); - } - } - - var base = '', array = false, braces = ['{', '}']; - - // Make Array say that they are Array - if (isArray(value)) { - array = true; - braces = ['[', ']']; - } - - // Make functions say that they are functions - if (isFunction(value)) { - var n = value.name ? ': ' + value.name : ''; - base = ' [Function' + n + ']'; - } - - // Make RegExps say that they are RegExps - if (isRegExp(value)) { - base = ' ' + RegExp.prototype.toString.call(value); - } - - // Make dates with properties first say the date - if (isDate(value)) { - base = ' ' + Date.prototype.toUTCString.call(value); - } - - // Make error with message first say the error - if (isError(value)) { - base = ' ' + formatError(value); - } - - if (keys.length === 0 && (!array || value.length == 0)) { - return braces[0] + base + braces[1]; - } - - if (recurseTimes < 0) { - if (isRegExp(value)) { - return ctx.stylize(RegExp.prototype.toString.call(value), 'regexp'); - } else { - return ctx.stylize('[Object]', 'special'); - } - } - - ctx.seen.push(value); - - var output; - if (array) { - output = formatArray(ctx, value, recurseTimes, visibleKeys, keys); - } else { - output = keys.map(function(key) { - return formatProperty(ctx, value, recurseTimes, visibleKeys, key, array); - }); - } - - ctx.seen.pop(); - - return reduceToSingleString(output, base, braces); -} - - -function formatPrimitive(ctx, value) { - if (isUndefined(value)) - return ctx.stylize('undefined', 'undefined'); - if (isString(value)) { - var simple = '\'' + JSON.stringify(value).replace(/^"|"$/g, '') - .replace(/'/g, "\\'") - .replace(/\\"/g, '"') + '\''; - return ctx.stylize(simple, 'string'); - } - if (isNumber(value)) - return ctx.stylize('' + value, 'number'); - if (isBoolean(value)) - return ctx.stylize('' + value, 'boolean'); - // For some reason typeof null is "object", so special case here. - if (isNull(value)) - return ctx.stylize('null', 'null'); -} - - -function formatError(value) { - return '[' + Error.prototype.toString.call(value) + ']'; -} - - -function formatArray(ctx, value, recurseTimes, visibleKeys, keys) { - var output = []; - for (var i = 0, l = value.length; i < l; ++i) { - if (hasOwnProperty(value, String(i))) { - output.push(formatProperty(ctx, value, recurseTimes, visibleKeys, - String(i), true)); - } else { - output.push(''); - } - } - keys.forEach(function(key) { - if (!key.match(/^\d+$/)) { - output.push(formatProperty(ctx, value, recurseTimes, visibleKeys, - key, true)); - } - }); - return output; -} - - -function formatProperty(ctx, value, recurseTimes, visibleKeys, key, array) { - var name, str, desc; - desc = Object.getOwnPropertyDescriptor(value, key) || { value: value[key] }; - if (desc.get) { - if (desc.set) { - str = ctx.stylize('[Getter/Setter]', 'special'); - } else { - str = ctx.stylize('[Getter]', 'special'); - } - } else { - if (desc.set) { - str = ctx.stylize('[Setter]', 'special'); - } - } - if (!hasOwnProperty(visibleKeys, key)) { - name = '[' + key + ']'; - } - if (!str) { - if (ctx.seen.indexOf(desc.value) < 0) { - if (isNull(recurseTimes)) { - str = formatValue(ctx, desc.value, null); - } else { - str = formatValue(ctx, desc.value, recurseTimes - 1); - } - if (str.indexOf('\n') > -1) { - if (array) { - str = str.split('\n').map(function(line) { - return ' ' + line; - }).join('\n').substr(2); - } else { - str = '\n' + str.split('\n').map(function(line) { - return ' ' + line; - }).join('\n'); - } - } - } else { - str = ctx.stylize('[Circular]', 'special'); - } - } - if (isUndefined(name)) { - if (array && key.match(/^\d+$/)) { - return str; - } - name = JSON.stringify('' + key); - if (name.match(/^"([a-zA-Z_][a-zA-Z_0-9]*)"$/)) { - name = name.substr(1, name.length - 2); - name = ctx.stylize(name, 'name'); - } else { - name = name.replace(/'/g, "\\'") - .replace(/\\"/g, '"') - .replace(/(^"|"$)/g, "'"); - name = ctx.stylize(name, 'string'); - } - } - - return name + ': ' + str; -} - - -function reduceToSingleString(output, base, braces) { - var numLinesEst = 0; - var length = output.reduce(function(prev, cur) { - numLinesEst++; - if (cur.indexOf('\n') >= 0) numLinesEst++; - return prev + cur.replace(/\u001b\[\d\d?m/g, '').length + 1; - }, 0); - - if (length > 60) { - return braces[0] + - (base === '' ? '' : base + '\n ') + - ' ' + - output.join(',\n ') + - ' ' + - braces[1]; - } - - return braces[0] + base + ' ' + output.join(', ') + ' ' + braces[1]; -} - - -// NOTE: These type checking functions intentionally don't use `instanceof` -// because it is fragile and can be easily faked with `Object.create()`. -function isArray(ar) { - return Array.isArray(ar); -} -exports.isArray = isArray; - -function isBoolean(arg) { - return typeof arg === 'boolean'; -} -exports.isBoolean = isBoolean; - -function isNull(arg) { - return arg === null; -} -exports.isNull = isNull; - -function isNullOrUndefined(arg) { - return arg == null; -} -exports.isNullOrUndefined = isNullOrUndefined; - -function isNumber(arg) { - return typeof arg === 'number'; -} -exports.isNumber = isNumber; - -function isString(arg) { - return typeof arg === 'string'; -} -exports.isString = isString; - -function isSymbol(arg) { - return typeof arg === 'symbol'; -} -exports.isSymbol = isSymbol; - -function isUndefined(arg) { - return arg === void 0; -} -exports.isUndefined = isUndefined; - -function isRegExp(re) { - return isObject(re) && objectToString(re) === '[object RegExp]'; -} -exports.isRegExp = isRegExp; - -function isObject(arg) { - return typeof arg === 'object' && arg !== null; -} -exports.isObject = isObject; - -function isDate(d) { - return isObject(d) && objectToString(d) === '[object Date]'; -} -exports.isDate = isDate; - -function isError(e) { - return isObject(e) && - (objectToString(e) === '[object Error]' || e instanceof Error); -} -exports.isError = isError; - -function isFunction(arg) { - return typeof arg === 'function'; -} -exports.isFunction = isFunction; - -function isPrimitive(arg) { - return arg === null || - typeof arg === 'boolean' || - typeof arg === 'number' || - typeof arg === 'string' || - typeof arg === 'symbol' || // ES6 symbol - typeof arg === 'undefined'; -} -exports.isPrimitive = isPrimitive; - -exports.isBuffer = _dereq_('./support/isBuffer'); - -function objectToString(o) { - return Object.prototype.toString.call(o); -} - - -function pad(n) { - return n < 10 ? '0' + n.toString(10) : n.toString(10); -} - - -var months = ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', - 'Oct', 'Nov', 'Dec']; - -// 26 Feb 16:19:34 -function timestamp() { - var d = new Date(); - var time = [pad(d.getHours()), - pad(d.getMinutes()), - pad(d.getSeconds())].join(':'); - return [d.getDate(), months[d.getMonth()], time].join(' '); -} - - -// log is just a thin wrapper to console.log that prepends a timestamp -exports.log = function() { - console.log('%s - %s', timestamp(), exports.format.apply(exports, arguments)); -}; - - -/** - * Inherit the prototype methods from one constructor into another. - * - * The Function.prototype.inherits from lang.js rewritten as a standalone - * function (not on Function.prototype). NOTE: If this file is to be loaded - * during bootstrapping this function needs to be rewritten using some native - * functions as prototype setup using normal JavaScript does not work as - * expected during bootstrapping (see mirror.js in r114903). - * - * @param {function} ctor Constructor function which needs to inherit the - * prototype. - * @param {function} superCtor Constructor function to inherit prototype from. - */ -exports.inherits = _dereq_('inherits'); - -exports._extend = function(origin, add) { - // Don't do anything if add isn't an object - if (!add || !isObject(add)) return origin; - - var keys = Object.keys(add); - var i = keys.length; - while (i--) { - origin[keys[i]] = add[keys[i]]; - } - return origin; -}; - -function hasOwnProperty(obj, prop) { - return Object.prototype.hasOwnProperty.call(obj, prop); -} - -}).call(this,_dereq_('_process'),typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {}) -},{"./support/isBuffer":4,"_process":3,"inherits":2}],6:[function(_dereq_,module,exports){ -// A recursive descent parser operates by defining functions for all -// syntactic elements, and recursively calling those, each function -// advancing the input stream and returning an AST node. Precedence -// of constructs (for example, the fact that `!x[1]` means `!(x[1])` -// instead of `(!x)[1]` is handled by the fact that the parser -// function that parses unary prefix operators is called first, and -// in turn calls the function that parses `[]` subscripts — that -// way, it'll receive the node for `x[1]` already parsed, and wraps -// *that* in the unary operator node. -// -// Acorn uses an [operator precedence parser][opp] to handle binary -// operator precedence, because it is much more compact than using -// the technique outlined above, which uses different, nesting -// functions to specify precedence, for all of the ten binary -// precedence levels that JavaScript defines. -// -// [opp]: http://en.wikipedia.org/wiki/Operator-precedence_parser - -"use strict"; - -var tt = _dereq_("./tokentype").types; - -var Parser = _dereq_("./state").Parser; - -var reservedWords = _dereq_("./identifier").reservedWords; - -var has = _dereq_("./util").has; - -var pp = Parser.prototype; - -// Check if property name clashes with already added. -// Object/class getters and setters are not allowed to clash — -// either with each other or with an init property — and in -// strict mode, init properties are also not allowed to be repeated. - -pp.checkPropClash = function (prop, propHash) { - if (this.options.ecmaVersion >= 6) return; - var key = prop.key, - name = undefined; - switch (key.type) { - case "Identifier": - name = key.name;break; - case "Literal": - name = String(key.value);break; - default: - return; - } - var kind = prop.kind || "init", - other = undefined; - if (has(propHash, name)) { - other = propHash[name]; - var isGetSet = kind !== "init"; - if ((this.strict || isGetSet) && other[kind] || !(isGetSet ^ other.init)) this.raise(key.start, "Redefinition of property"); - } else { - other = propHash[name] = { - init: false, - get: false, - set: false - }; - } - other[kind] = true; -}; - -// ### Expression parsing - -// These nest, from the most general expression type at the top to -// 'atomic', nondivisible expression types at the bottom. Most of -// the functions will simply let the function(s) below them parse, -// and, *if* the syntactic construct they handle is present, wrap -// the AST node that the inner parser gave them in another node. - -// Parse a full expression. The optional arguments are used to -// forbid the `in` operator (in for loops initalization expressions) -// and provide reference for storing '=' operator inside shorthand -// property assignment in contexts where both object expression -// and object pattern might appear (so it's possible to raise -// delayed syntax error at correct position). - -pp.parseExpression = function (noIn, refShorthandDefaultPos) { - var startPos = this.start, - startLoc = this.startLoc; - var expr = this.parseMaybeAssign(noIn, refShorthandDefaultPos); - if (this.type === tt.comma) { - var node = this.startNodeAt(startPos, startLoc); - node.expressions = [expr]; - while (this.eat(tt.comma)) node.expressions.push(this.parseMaybeAssign(noIn, refShorthandDefaultPos)); - return this.finishNode(node, "SequenceExpression"); - } - return expr; -}; - -// Parse an assignment expression. This includes applications of -// operators like `+=`. - -pp.parseMaybeAssign = function (noIn, refShorthandDefaultPos, afterLeftParse) { - if (this.type == tt._yield && this.inGenerator) return this.parseYield(); - - var failOnShorthandAssign = undefined; - if (!refShorthandDefaultPos) { - refShorthandDefaultPos = { start: 0 }; - failOnShorthandAssign = true; - } else { - failOnShorthandAssign = false; - } - var startPos = this.start, - startLoc = this.startLoc; - if (this.type == tt.parenL || this.type == tt.name) this.potentialArrowAt = this.start; - var left = this.parseMaybeConditional(noIn, refShorthandDefaultPos); - if (afterLeftParse) left = afterLeftParse.call(this, left, startPos, startLoc); - if (this.type.isAssign) { - var node = this.startNodeAt(startPos, startLoc); - node.operator = this.value; - node.left = this.type === tt.eq ? this.toAssignable(left) : left; - refShorthandDefaultPos.start = 0; // reset because shorthand default was used correctly - this.checkLVal(left); - this.next(); - node.right = this.parseMaybeAssign(noIn); - return this.finishNode(node, "AssignmentExpression"); - } else if (failOnShorthandAssign && refShorthandDefaultPos.start) { - this.unexpected(refShorthandDefaultPos.start); - } - return left; -}; - -// Parse a ternary conditional (`?:`) operator. - -pp.parseMaybeConditional = function (noIn, refShorthandDefaultPos) { - var startPos = this.start, - startLoc = this.startLoc; - var expr = this.parseExprOps(noIn, refShorthandDefaultPos); - if (refShorthandDefaultPos && refShorthandDefaultPos.start) return expr; - if (this.eat(tt.question)) { - var node = this.startNodeAt(startPos, startLoc); - node.test = expr; - node.consequent = this.parseMaybeAssign(); - this.expect(tt.colon); - node.alternate = this.parseMaybeAssign(noIn); - return this.finishNode(node, "ConditionalExpression"); - } - return expr; -}; - -// Start the precedence parser. - -pp.parseExprOps = function (noIn, refShorthandDefaultPos) { - var startPos = this.start, - startLoc = this.startLoc; - var expr = this.parseMaybeUnary(refShorthandDefaultPos); - if (refShorthandDefaultPos && refShorthandDefaultPos.start) return expr; - return this.parseExprOp(expr, startPos, startLoc, -1, noIn); -}; - -// Parse binary operators with the operator precedence parsing -// algorithm. `left` is the left-hand side of the operator. -// `minPrec` provides context that allows the function to stop and -// defer further parser to one of its callers when it encounters an -// operator that has a lower precedence than the set it is parsing. - -pp.parseExprOp = function (left, leftStartPos, leftStartLoc, minPrec, noIn) { - var prec = this.type.binop; - if (Array.isArray(leftStartPos)) { - if (this.options.locations && noIn === undefined) { - // shift arguments to left by one - noIn = minPrec; - minPrec = leftStartLoc; - // flatten leftStartPos - leftStartLoc = leftStartPos[1]; - leftStartPos = leftStartPos[0]; - } - } - if (prec != null && (!noIn || this.type !== tt._in)) { - if (prec > minPrec) { - var node = this.startNodeAt(leftStartPos, leftStartLoc); - node.left = left; - node.operator = this.value; - var op = this.type; - this.next(); - var startPos = this.start, - startLoc = this.startLoc; - node.right = this.parseExprOp(this.parseMaybeUnary(), startPos, startLoc, prec, noIn); - this.finishNode(node, op === tt.logicalOR || op === tt.logicalAND ? "LogicalExpression" : "BinaryExpression"); - return this.parseExprOp(node, leftStartPos, leftStartLoc, minPrec, noIn); - } - } - return left; -}; - -// Parse unary operators, both prefix and postfix. - -pp.parseMaybeUnary = function (refShorthandDefaultPos) { - if (this.type.prefix) { - var node = this.startNode(), - update = this.type === tt.incDec; - node.operator = this.value; - node.prefix = true; - this.next(); - node.argument = this.parseMaybeUnary(); - if (refShorthandDefaultPos && refShorthandDefaultPos.start) this.unexpected(refShorthandDefaultPos.start); - if (update) this.checkLVal(node.argument);else if (this.strict && node.operator === "delete" && node.argument.type === "Identifier") this.raise(node.start, "Deleting local variable in strict mode"); - return this.finishNode(node, update ? "UpdateExpression" : "UnaryExpression"); - } - var startPos = this.start, - startLoc = this.startLoc; - var expr = this.parseExprSubscripts(refShorthandDefaultPos); - if (refShorthandDefaultPos && refShorthandDefaultPos.start) return expr; - while (this.type.postfix && !this.canInsertSemicolon()) { - var node = this.startNodeAt(startPos, startLoc); - node.operator = this.value; - node.prefix = false; - node.argument = expr; - this.checkLVal(expr); - this.next(); - expr = this.finishNode(node, "UpdateExpression"); - } - return expr; -}; - -// Parse call, dot, and `[]`-subscript expressions. - -pp.parseExprSubscripts = function (refShorthandDefaultPos) { - var startPos = this.start, - startLoc = this.startLoc; - var expr = this.parseExprAtom(refShorthandDefaultPos); - if (refShorthandDefaultPos && refShorthandDefaultPos.start) return expr; - return this.parseSubscripts(expr, startPos, startLoc); -}; - -pp.parseSubscripts = function (base, startPos, startLoc, noCalls) { - if (Array.isArray(startPos)) { - if (this.options.locations && noCalls === undefined) { - // shift arguments to left by one - noCalls = startLoc; - // flatten startPos - startLoc = startPos[1]; - startPos = startPos[0]; - } - } - for (;;) { - if (this.eat(tt.dot)) { - var node = this.startNodeAt(startPos, startLoc); - node.object = base; - node.property = this.parseIdent(true); - node.computed = false; - base = this.finishNode(node, "MemberExpression"); - } else if (this.eat(tt.bracketL)) { - var node = this.startNodeAt(startPos, startLoc); - node.object = base; - node.property = this.parseExpression(); - node.computed = true; - this.expect(tt.bracketR); - base = this.finishNode(node, "MemberExpression"); - } else if (!noCalls && this.eat(tt.parenL)) { - var node = this.startNodeAt(startPos, startLoc); - node.callee = base; - node.arguments = this.parseExprList(tt.parenR, false); - base = this.finishNode(node, "CallExpression"); - } else if (this.type === tt.backQuote) { - var node = this.startNodeAt(startPos, startLoc); - node.tag = base; - node.quasi = this.parseTemplate(); - base = this.finishNode(node, "TaggedTemplateExpression"); - } else { - return base; - } - } -}; - -// Parse an atomic expression — either a single token that is an -// expression, an expression started by a keyword like `function` or -// `new`, or an expression wrapped in punctuation like `()`, `[]`, -// or `{}`. - -pp.parseExprAtom = function (refShorthandDefaultPos) { - var node = undefined, - canBeArrow = this.potentialArrowAt == this.start; - switch (this.type) { - case tt._this: - case tt._super: - var type = this.type === tt._this ? "ThisExpression" : "Super"; - node = this.startNode(); - this.next(); - return this.finishNode(node, type); - - case tt._yield: - if (this.inGenerator) this.unexpected(); - - case tt.name: - var startPos = this.start, - startLoc = this.startLoc; - var id = this.parseIdent(this.type !== tt.name); - if (canBeArrow && !this.canInsertSemicolon() && this.eat(tt.arrow)) return this.parseArrowExpression(this.startNodeAt(startPos, startLoc), [id]); - return id; - - case tt.regexp: - var value = this.value; - node = this.parseLiteral(value.value); - node.regex = { pattern: value.pattern, flags: value.flags }; - return node; - - case tt.num:case tt.string: - return this.parseLiteral(this.value); - - case tt._null:case tt._true:case tt._false: - node = this.startNode(); - node.value = this.type === tt._null ? null : this.type === tt._true; - node.raw = this.type.keyword; - this.next(); - return this.finishNode(node, "Literal"); - - case tt.parenL: - return this.parseParenAndDistinguishExpression(canBeArrow); - - case tt.bracketL: - node = this.startNode(); - this.next(); - // check whether this is array comprehension or regular array - if (this.options.ecmaVersion >= 7 && this.type === tt._for) { - return this.parseComprehension(node, false); - } - node.elements = this.parseExprList(tt.bracketR, true, true, refShorthandDefaultPos); - return this.finishNode(node, "ArrayExpression"); - - case tt.braceL: - return this.parseObj(false, refShorthandDefaultPos); - - case tt._function: - node = this.startNode(); - this.next(); - return this.parseFunction(node, false); - - case tt._class: - return this.parseClass(this.startNode(), false); - - case tt._new: - return this.parseNew(); - - case tt.backQuote: - return this.parseTemplate(); - - default: - this.unexpected(); - } -}; - -pp.parseLiteral = function (value) { - var node = this.startNode(); - node.value = value; - node.raw = this.input.slice(this.start, this.end); - this.next(); - return this.finishNode(node, "Literal"); -}; - -pp.parseParenExpression = function () { - this.expect(tt.parenL); - var val = this.parseExpression(); - this.expect(tt.parenR); - return val; -}; - -pp.parseParenAndDistinguishExpression = function (canBeArrow) { - var startPos = this.start, - startLoc = this.startLoc, - val = undefined; - if (this.options.ecmaVersion >= 6) { - this.next(); - - if (this.options.ecmaVersion >= 7 && this.type === tt._for) { - return this.parseComprehension(this.startNodeAt(startPos, startLoc), true); - } - - var innerStartPos = this.start, - innerStartLoc = this.startLoc; - var exprList = [], - first = true; - var refShorthandDefaultPos = { start: 0 }, - spreadStart = undefined, - innerParenStart = undefined; - while (this.type !== tt.parenR) { - first ? first = false : this.expect(tt.comma); - if (this.type === tt.ellipsis) { - spreadStart = this.start; - exprList.push(this.parseParenItem(this.parseRest())); - break; - } else { - if (this.type === tt.parenL && !innerParenStart) { - innerParenStart = this.start; - } - exprList.push(this.parseMaybeAssign(false, refShorthandDefaultPos, this.parseParenItem)); - } - } - var innerEndPos = this.start, - innerEndLoc = this.startLoc; - this.expect(tt.parenR); - - if (canBeArrow && !this.canInsertSemicolon() && this.eat(tt.arrow)) { - if (innerParenStart) this.unexpected(innerParenStart); - return this.parseParenArrowList(startPos, startLoc, exprList); - } - - if (!exprList.length) this.unexpected(this.lastTokStart); - if (spreadStart) this.unexpected(spreadStart); - if (refShorthandDefaultPos.start) this.unexpected(refShorthandDefaultPos.start); - - if (exprList.length > 1) { - val = this.startNodeAt(innerStartPos, innerStartLoc); - val.expressions = exprList; - this.finishNodeAt(val, "SequenceExpression", innerEndPos, innerEndLoc); - } else { - val = exprList[0]; - } - } else { - val = this.parseParenExpression(); - } - - if (this.options.preserveParens) { - var par = this.startNodeAt(startPos, startLoc); - par.expression = val; - return this.finishNode(par, "ParenthesizedExpression"); - } else { - return val; - } -}; - -pp.parseParenItem = function (item) { - return item; -}; - -pp.parseParenArrowList = function (startPos, startLoc, exprList) { - return this.parseArrowExpression(this.startNodeAt(startPos, startLoc), exprList); -}; - -// New's precedence is slightly tricky. It must allow its argument -// to be a `[]` or dot subscript expression, but not a call — at -// least, not without wrapping it in parentheses. Thus, it uses the - -var empty = []; - -pp.parseNew = function () { - var node = this.startNode(); - var meta = this.parseIdent(true); - if (this.options.ecmaVersion >= 6 && this.eat(tt.dot)) { - node.meta = meta; - node.property = this.parseIdent(true); - if (node.property.name !== "target") this.raise(node.property.start, "The only valid meta property for new is new.target"); - return this.finishNode(node, "MetaProperty"); - } - var startPos = this.start, - startLoc = this.startLoc; - node.callee = this.parseSubscripts(this.parseExprAtom(), startPos, startLoc, true); - if (this.eat(tt.parenL)) node.arguments = this.parseExprList(tt.parenR, false);else node.arguments = empty; - return this.finishNode(node, "NewExpression"); -}; - -// Parse template expression. - -pp.parseTemplateElement = function () { - var elem = this.startNode(); - elem.value = { - raw: this.input.slice(this.start, this.end), - cooked: this.value - }; - this.next(); - elem.tail = this.type === tt.backQuote; - return this.finishNode(elem, "TemplateElement"); -}; - -pp.parseTemplate = function () { - var node = this.startNode(); - this.next(); - node.expressions = []; - var curElt = this.parseTemplateElement(); - node.quasis = [curElt]; - while (!curElt.tail) { - this.expect(tt.dollarBraceL); - node.expressions.push(this.parseExpression()); - this.expect(tt.braceR); - node.quasis.push(curElt = this.parseTemplateElement()); - } - this.next(); - return this.finishNode(node, "TemplateLiteral"); -}; - -// Parse an object literal or binding pattern. - -pp.parseObj = function (isPattern, refShorthandDefaultPos) { - var node = this.startNode(), - first = true, - propHash = {}; - node.properties = []; - this.next(); - while (!this.eat(tt.braceR)) { - if (!first) { - this.expect(tt.comma); - if (this.afterTrailingComma(tt.braceR)) break; - } else first = false; - - var prop = this.startNode(), - isGenerator = undefined, - startPos = undefined, - startLoc = undefined; - if (this.options.ecmaVersion >= 6) { - prop.method = false; - prop.shorthand = false; - if (isPattern || refShorthandDefaultPos) { - startPos = this.start; - startLoc = this.startLoc; - } - if (!isPattern) isGenerator = this.eat(tt.star); - } - this.parsePropertyName(prop); - this.parsePropertyValue(prop, isPattern, isGenerator, startPos, startLoc, refShorthandDefaultPos); - this.checkPropClash(prop, propHash); - node.properties.push(this.finishNode(prop, "Property")); - } - return this.finishNode(node, isPattern ? "ObjectPattern" : "ObjectExpression"); -}; - -pp.parsePropertyValue = function (prop, isPattern, isGenerator, startPos, startLoc, refShorthandDefaultPos) { - if (this.eat(tt.colon)) { - prop.value = isPattern ? this.parseMaybeDefault(this.start, this.startLoc) : this.parseMaybeAssign(false, refShorthandDefaultPos); - prop.kind = "init"; - } else if (this.options.ecmaVersion >= 6 && this.type === tt.parenL) { - if (isPattern) this.unexpected(); - prop.kind = "init"; - prop.method = true; - prop.value = this.parseMethod(isGenerator); - } else if (this.options.ecmaVersion >= 5 && !prop.computed && prop.key.type === "Identifier" && (prop.key.name === "get" || prop.key.name === "set") && (this.type != tt.comma && this.type != tt.braceR)) { - if (isGenerator || isPattern) this.unexpected(); - prop.kind = prop.key.name; - this.parsePropertyName(prop); - prop.value = this.parseMethod(false); - } else if (this.options.ecmaVersion >= 6 && !prop.computed && prop.key.type === "Identifier") { - prop.kind = "init"; - if (isPattern) { - if (this.isKeyword(prop.key.name) || this.strict && (reservedWords.strictBind(prop.key.name) || reservedWords.strict(prop.key.name)) || !this.options.allowReserved && this.isReservedWord(prop.key.name)) this.raise(prop.key.start, "Binding " + prop.key.name); - prop.value = this.parseMaybeDefault(startPos, startLoc, prop.key); - } else if (this.type === tt.eq && refShorthandDefaultPos) { - if (!refShorthandDefaultPos.start) refShorthandDefaultPos.start = this.start; - prop.value = this.parseMaybeDefault(startPos, startLoc, prop.key); - } else { - prop.value = prop.key; - } - prop.shorthand = true; - } else this.unexpected(); -}; - -pp.parsePropertyName = function (prop) { - if (this.options.ecmaVersion >= 6) { - if (this.eat(tt.bracketL)) { - prop.computed = true; - prop.key = this.parseMaybeAssign(); - this.expect(tt.bracketR); - return prop.key; - } else { - prop.computed = false; - } - } - return prop.key = this.type === tt.num || this.type === tt.string ? this.parseExprAtom() : this.parseIdent(true); -}; - -// Initialize empty function node. - -pp.initFunction = function (node) { - node.id = null; - if (this.options.ecmaVersion >= 6) { - node.generator = false; - node.expression = false; - } -}; - -// Parse object or class method. - -pp.parseMethod = function (isGenerator) { - var node = this.startNode(); - this.initFunction(node); - this.expect(tt.parenL); - node.params = this.parseBindingList(tt.parenR, false, false); - var allowExpressionBody = undefined; - if (this.options.ecmaVersion >= 6) { - node.generator = isGenerator; - allowExpressionBody = true; - } else { - allowExpressionBody = false; - } - this.parseFunctionBody(node, allowExpressionBody); - return this.finishNode(node, "FunctionExpression"); -}; - -// Parse arrow function expression with given parameters. - -pp.parseArrowExpression = function (node, params) { - this.initFunction(node); - node.params = this.toAssignableList(params, true); - this.parseFunctionBody(node, true); - return this.finishNode(node, "ArrowFunctionExpression"); -}; - -// Parse function body and check parameters. - -pp.parseFunctionBody = function (node, allowExpression) { - var isExpression = allowExpression && this.type !== tt.braceL; - - if (isExpression) { - node.body = this.parseMaybeAssign(); - node.expression = true; - } else { - // Start a new scope with regard to labels and the `inFunction` - // flag (restore them to their old value afterwards). - var oldInFunc = this.inFunction, - oldInGen = this.inGenerator, - oldLabels = this.labels; - this.inFunction = true;this.inGenerator = node.generator;this.labels = []; - node.body = this.parseBlock(true); - node.expression = false; - this.inFunction = oldInFunc;this.inGenerator = oldInGen;this.labels = oldLabels; - } - - // If this is a strict mode function, verify that argument names - // are not repeated, and it does not try to bind the words `eval` - // or `arguments`. - if (this.strict || !isExpression && node.body.body.length && this.isUseStrict(node.body.body[0])) { - var nameHash = {}, - oldStrict = this.strict; - this.strict = true; - if (node.id) this.checkLVal(node.id, true); - for (var i = 0; i < node.params.length; i++) { - this.checkLVal(node.params[i], true, nameHash); - }this.strict = oldStrict; - } -}; - -// Parses a comma-separated list of expressions, and returns them as -// an array. `close` is the token type that ends the list, and -// `allowEmpty` can be turned on to allow subsequent commas with -// nothing in between them to be parsed as `null` (which is needed -// for array literals). - -pp.parseExprList = function (close, allowTrailingComma, allowEmpty, refShorthandDefaultPos) { - var elts = [], - first = true; - while (!this.eat(close)) { - if (!first) { - this.expect(tt.comma); - if (allowTrailingComma && this.afterTrailingComma(close)) break; - } else first = false; - - if (allowEmpty && this.type === tt.comma) { - elts.push(null); - } else { - if (this.type === tt.ellipsis) elts.push(this.parseSpread(refShorthandDefaultPos));else elts.push(this.parseMaybeAssign(false, refShorthandDefaultPos)); - } - } - return elts; -}; - -// Parse the next token as an identifier. If `liberal` is true (used -// when parsing properties), it will also convert keywords into -// identifiers. - -pp.parseIdent = function (liberal) { - var node = this.startNode(); - if (liberal && this.options.allowReserved == "never") liberal = false; - if (this.type === tt.name) { - if (!liberal && (!this.options.allowReserved && this.isReservedWord(this.value) || this.strict && reservedWords.strict(this.value) && (this.options.ecmaVersion >= 6 || this.input.slice(this.start, this.end).indexOf("\\") == -1))) this.raise(this.start, "The keyword '" + this.value + "' is reserved"); - node.name = this.value; - } else if (liberal && this.type.keyword) { - node.name = this.type.keyword; - } else { - this.unexpected(); - } - this.next(); - return this.finishNode(node, "Identifier"); -}; - -// Parses yield expression inside generator. - -pp.parseYield = function () { - var node = this.startNode(); - this.next(); - if (this.type == tt.semi || this.canInsertSemicolon() || this.type != tt.star && !this.type.startsExpr) { - node.delegate = false; - node.argument = null; - } else { - node.delegate = this.eat(tt.star); - node.argument = this.parseMaybeAssign(); - } - return this.finishNode(node, "YieldExpression"); -}; - -// Parses array and generator comprehensions. - -pp.parseComprehension = function (node, isGenerator) { - node.blocks = []; - while (this.type === tt._for) { - var block = this.startNode(); - this.next(); - this.expect(tt.parenL); - block.left = this.parseBindingAtom(); - this.checkLVal(block.left, true); - this.expectContextual("of"); - block.right = this.parseExpression(); - this.expect(tt.parenR); - node.blocks.push(this.finishNode(block, "ComprehensionBlock")); - } - node.filter = this.eat(tt._if) ? this.parseParenExpression() : null; - node.body = this.parseExpression(); - this.expect(isGenerator ? tt.parenR : tt.bracketR); - node.generator = isGenerator; - return this.finishNode(node, "ComprehensionExpression"); -}; - -},{"./identifier":7,"./state":13,"./tokentype":17,"./util":18}],7:[function(_dereq_,module,exports){ - - -// Test whether a given character code starts an identifier. - -"use strict"; - -exports.isIdentifierStart = isIdentifierStart; - -// Test whether a given character is part of an identifier. - -exports.isIdentifierChar = isIdentifierChar; -exports.__esModule = true; -// This is a trick taken from Esprima. It turns out that, on -// non-Chrome browsers, to check whether a string is in a set, a -// predicate containing a big ugly `switch` statement is faster than -// a regular expression, and on Chrome the two are about on par. -// This function uses `eval` (non-lexical) to produce such a -// predicate from a space-separated string of words. -// -// It starts by sorting the words by length. - -// Removed to create an eval-free library - -// Reserved word lists for various dialects of the language - -var reservedWords = { - 3: function anonymous(str) { -switch(str.length){case 6:switch(str){case "double":case "export":case "import":case "native":case "public":case "static":case "throws":return true}return false;case 4:switch(str){case "byte":case "char":case "enum":case "goto":case "long":return true}return false;case 5:switch(str){case "class":case "final":case "float":case "short":case "super":return true}return false;case 7:switch(str){case "boolean":case "extends":case "package":case "private":return true}return false;case 9:switch(str){case "interface":case "protected":case "transient":return true}return false;case 8:switch(str){case "abstract":case "volatile":return true}return false;case 10:return str === "implements";case 3:return str === "int";case 12:return str === "synchronized";} -}, - 5: function anonymous(str) { -switch(str.length){case 5:switch(str){case "class":case "super":case "const":return true}return false;case 6:switch(str){case "export":case "import":return true}return false;case 4:return str === "enum";case 7:return str === "extends";} -}, - 6: function anonymous(str) { -switch(str){case "enum":case "await":return true}return false; -}, - strict: function anonymous(str) { -switch(str.length){case 9:switch(str){case "interface":case "protected":return true}return false;case 7:switch(str){case "package":case "private":return true}return false;case 6:switch(str){case "public":case "static":return true}return false;case 10:return str === "implements";case 3:return str === "let";case 5:return str === "yield";} -}, - strictBind: function anonymous(str) { -switch(str){case "eval":case "arguments":return true}return false; -} -}; - -exports.reservedWords = reservedWords; -// And the keywords - -var ecma5AndLessKeywords = "break case catch continue debugger default do else finally for function if return switch throw try var while with null true false instanceof typeof void delete new in this"; - -var keywords = { - 5: function anonymous(str) { -switch(str.length){case 4:switch(str){case "case":case "else":case "with":case "null":case "true":case "void":case "this":return true}return false;case 5:switch(str){case "break":case "catch":case "throw":case "while":case "false":return true}return false;case 3:switch(str){case "for":case "try":case "var":case "new":return true}return false;case 6:switch(str){case "return":case "switch":case "typeof":case "delete":return true}return false;case 8:switch(str){case "continue":case "debugger":case "function":return true}return false;case 2:switch(str){case "do":case "if":case "in":return true}return false;case 7:switch(str){case "default":case "finally":return true}return false;case 10:return str === "instanceof";} -}, - 6: function anonymous(str) { -switch(str.length){case 5:switch(str){case "break":case "catch":case "throw":case "while":case "false":case "const":case "class":case "yield":case "super":return true}return false;case 4:switch(str){case "case":case "else":case "with":case "null":case "true":case "void":case "this":return true}return false;case 6:switch(str){case "return":case "switch":case "typeof":case "delete":case "export":case "import":return true}return false;case 3:switch(str){case "for":case "try":case "var":case "new":case "let":return true}return false;case 8:switch(str){case "continue":case "debugger":case "function":return true}return false;case 7:switch(str){case "default":case "finally":case "extends":return true}return false;case 2:switch(str){case "do":case "if":case "in":return true}return false;case 10:return str === "instanceof";} -} -}; - -exports.keywords = keywords; -// ## Character categories - -// Big ugly regular expressions that match characters in the -// whitespace, identifier, and identifier-start categories. These -// are only applied when a character is found to actually have a -// code point above 128. -// Generated by `tools/generate-identifier-regex.js`. - -var nonASCIIidentifierStartChars = "ªµºÀ-ÖØ-öø-ˁˆ-ˑˠ-ˤˬˮͰ-ʹͶͷͺ-ͽͿΆΈ-ΊΌΎ-ΡΣ-ϵϷ-ҁҊ-ԯԱ-Ֆՙա-ևא-תװ-ײؠ-يٮٯٱ-ۓەۥۦۮۯۺ-ۼۿܐܒ-ܯݍ-ޥޱߊ-ߪߴߵߺࠀ-ࠕࠚࠤࠨࡀ-ࡘࢠ-ࢲऄ-हऽॐक़-ॡॱ-ঀঅ-ঌএঐও-নপ-রলশ-হঽৎড়ঢ়য়-ৡৰৱਅ-ਊਏਐਓ-ਨਪ-ਰਲਲ਼ਵਸ਼ਸਹਖ਼-ੜਫ਼ੲ-ੴઅ-ઍએ-ઑઓ-નપ-રલળવ-હઽૐૠૡଅ-ଌଏଐଓ-ନପ-ରଲଳଵ-ହଽଡ଼ଢ଼ୟ-ୡୱஃஅ-ஊஎ-ஐஒ-கஙசஜஞடணதந-பம-ஹௐఅ-ఌఎ-ఐఒ-నప-హఽౘౙౠౡಅ-ಌಎ-ಐಒ-ನಪ-ಳವ-ಹಽೞೠೡೱೲഅ-ഌഎ-ഐഒ-ഺഽൎൠൡൺ-ൿඅ-ඖක-නඳ-රලව-ෆก-ะาำเ-ๆກຂຄງຈຊຍດ-ທນ-ຟມ-ຣລວສຫອ-ະາຳຽເ-ໄໆໜ-ໟༀཀ-ཇཉ-ཬྈ-ྌက-ဪဿၐ-ၕၚ-ၝၡၥၦၮ-ၰၵ-ႁႎႠ-ჅჇჍა-ჺჼ-ቈቊ-ቍቐ-ቖቘቚ-ቝበ-ኈኊ-ኍነ-ኰኲ-ኵኸ-ኾዀዂ-ዅወ-ዖዘ-ጐጒ-ጕጘ-ፚᎀ-ᎏᎠ-Ᏼᐁ-ᙬᙯ-ᙿᚁ-ᚚᚠ-ᛪᛮ-ᛸᜀ-ᜌᜎ-ᜑᜠ-ᜱᝀ-ᝑᝠ-ᝬᝮ-ᝰក-ឳៗៜᠠ-ᡷᢀ-ᢨᢪᢰ-ᣵᤀ-ᤞᥐ-ᥭᥰ-ᥴᦀ-ᦫᧁ-ᧇᨀ-ᨖᨠ-ᩔᪧᬅ-ᬳᭅ-ᭋᮃ-ᮠᮮᮯᮺ-ᯥᰀ-ᰣᱍ-ᱏᱚ-ᱽᳩ-ᳬᳮ-ᳱᳵᳶᴀ-ᶿḀ-ἕἘ-Ἕἠ-ὅὈ-Ὅὐ-ὗὙὛὝὟ-ώᾀ-ᾴᾶ-ᾼιῂ-ῄῆ-ῌῐ-ΐῖ-Ίῠ-Ῥῲ-ῴῶ-ῼⁱⁿₐ-ₜℂℇℊ-ℓℕ℘-ℝℤΩℨK-ℹℼ-ℿⅅ-ⅉⅎⅠ-ↈⰀ-Ⱞⰰ-ⱞⱠ-ⳤⳫ-ⳮⳲⳳⴀ-ⴥⴧⴭⴰ-ⵧⵯⶀ-ⶖⶠ-ⶦⶨ-ⶮⶰ-ⶶⶸ-ⶾⷀ-ⷆⷈ-ⷎⷐ-ⷖⷘ-ⷞ々-〇〡-〩〱-〵〸-〼ぁ-ゖ゛-ゟァ-ヺー-ヿㄅ-ㄭㄱ-ㆎㆠ-ㆺㇰ-ㇿ㐀-䶵一-鿌ꀀ-ꒌꓐ-ꓽꔀ-ꘌꘐ-ꘟꘪꘫꙀ-ꙮꙿ-ꚝꚠ-ꛯꜗ-ꜟꜢ-ꞈꞋ-ꞎꞐ-ꞭꞰꞱꟷ-ꠁꠃ-ꠅꠇ-ꠊꠌ-ꠢꡀ-ꡳꢂ-ꢳꣲ-ꣷꣻꤊ-ꤥꤰ-ꥆꥠ-ꥼꦄ-ꦲꧏꧠ-ꧤꧦ-ꧯꧺ-ꧾꨀ-ꨨꩀ-ꩂꩄ-ꩋꩠ-ꩶꩺꩾ-ꪯꪱꪵꪶꪹ-ꪽꫀꫂꫛ-ꫝꫠ-ꫪꫲ-ꫴꬁ-ꬆꬉ-ꬎꬑ-ꬖꬠ-ꬦꬨ-ꬮꬰ-ꭚꭜ-ꭟꭤꭥꯀ-ꯢ가-힣ힰ-ퟆퟋ-ퟻ豈-舘並-龎ff-stﬓ-ﬗיִײַ-ﬨשׁ-זּטּ-לּמּנּסּףּפּצּ-ﮱﯓ-ﴽﵐ-ﶏﶒ-ﷇﷰ-ﷻﹰ-ﹴﹶ-ﻼＡ-Ｚａ-ｚｦ-ﾾￂ-ￇￊ-ￏￒ-ￗￚ-ￜ"; -var nonASCIIidentifierChars = "·̀-ͯ·҃-֑҇-ׇֽֿׁׂׅׄؐ-ًؚ-٩ٰۖ-ۜ۟-۪ۤۧۨ-ۭ۰-۹ܑܰ-݊ަ-ް߀-߉߫-߳ࠖ-࠙ࠛ-ࠣࠥ-ࠧࠩ-࡙࠭-࡛ࣤ-ःऺ-़ा-ॏ॑-ॗॢॣ०-९ঁ-ঃ়া-ৄেৈো-্ৗৢৣ০-৯ਁ-ਃ਼ਾ-ੂੇੈੋ-੍ੑ੦-ੱੵઁ-ઃ઼ા-ૅે-ૉો-્ૢૣ૦-૯ଁ-ଃ଼ା-ୄେୈୋ-୍ୖୗୢୣ୦-୯ஂா-ூெ-ைொ-்ௗ௦-௯ఀ-ఃా-ౄె-ైొ-్ౕౖౢౣ౦-౯ಁ-ಃ಼ಾ-ೄೆ-ೈೊ-್ೕೖೢೣ೦-೯ഁ-ഃാ-ൄെ-ൈൊ-്ൗൢൣ൦-൯ංඃ්ා-ුූෘ-ෟ෦-෯ෲෳัิ-ฺ็-๎๐-๙ັິ-ູົຼ່-ໍ໐-໙༘༙༠-༩༹༵༷༾༿ཱ-྄྆྇ྍ-ྗྙ-ྼ࿆ါ-ှ၀-၉ၖ-ၙၞ-ၠၢ-ၤၧ-ၭၱ-ၴႂ-ႍႏ-ႝ፝-፟፩-፱ᜒ-᜔ᜲ-᜴ᝒᝓᝲᝳ឴-៓៝០-៩᠋-᠍᠐-᠙ᢩᤠ-ᤫᤰ-᤻᥆-᥏ᦰ-ᧀᧈᧉ᧐-᧚ᨗ-ᨛᩕ-ᩞ᩠-᩿᩼-᪉᪐-᪙᪰-᪽ᬀ-ᬄ᬴-᭄᭐-᭙᭫-᭳ᮀ-ᮂᮡ-ᮭ᮰-᮹᯦-᯳ᰤ-᰷᱀-᱉᱐-᱙᳐-᳔᳒-᳨᳭ᳲ-᳴᳸᳹᷀-᷵᷼-᷿‿⁀⁔⃐-⃥⃜⃡-⃰⳯-⵿⳱ⷠ-〪ⷿ-゙゚〯꘠-꘩꙯ꙴ-꙽ꚟ꛰꛱ꠂ꠆ꠋꠣ-ꠧꢀꢁꢴ-꣄꣐-꣙꣠-꣱꤀-꤉ꤦ-꤭ꥇ-꥓ꦀ-ꦃ꦳-꧀꧐-꧙ꧥ꧰-꧹ꨩ-ꨶꩃꩌꩍ꩐-꩙ꩻ-ꩽꪰꪲ-ꪴꪷꪸꪾ꪿꫁ꫫ-ꫯꫵ꫶ꯣ-ꯪ꯬꯭꯰-꯹ﬞ︀-️︠-︭︳︴﹍-﹏０-９＿"; - -var nonASCIIidentifierStart = new RegExp("[" + nonASCIIidentifierStartChars + "]"); -var nonASCIIidentifier = new RegExp("[" + nonASCIIidentifierStartChars + nonASCIIidentifierChars + "]"); - -nonASCIIidentifierStartChars = nonASCIIidentifierChars = null; - -// These are a run-length and offset encoded representation of the -// >0xffff code points that are a valid part of identifiers. The -// offset starts at 0x10000, and each pair of numbers represents an -// offset to the next range, and then a size of the range. They were -// generated by tools/generate-identifier-regex.js -var astralIdentifierStartCodes = [0, 11, 2, 25, 2, 18, 2, 1, 2, 14, 3, 13, 35, 122, 70, 52, 268, 28, 4, 48, 48, 31, 17, 26, 6, 37, 11, 29, 3, 35, 5, 7, 2, 4, 43, 157, 99, 39, 9, 51, 157, 310, 10, 21, 11, 7, 153, 5, 3, 0, 2, 43, 2, 1, 4, 0, 3, 22, 11, 22, 10, 30, 98, 21, 11, 25, 71, 55, 7, 1, 65, 0, 16, 3, 2, 2, 2, 26, 45, 28, 4, 28, 36, 7, 2, 27, 28, 53, 11, 21, 11, 18, 14, 17, 111, 72, 955, 52, 76, 44, 33, 24, 27, 35, 42, 34, 4, 0, 13, 47, 15, 3, 22, 0, 38, 17, 2, 24, 133, 46, 39, 7, 3, 1, 3, 21, 2, 6, 2, 1, 2, 4, 4, 0, 32, 4, 287, 47, 21, 1, 2, 0, 185, 46, 82, 47, 21, 0, 60, 42, 502, 63, 32, 0, 449, 56, 1288, 920, 104, 110, 2962, 1070, 13266, 568, 8, 30, 114, 29, 19, 47, 17, 3, 32, 20, 6, 18, 881, 68, 12, 0, 67, 12, 16481, 1, 3071, 106, 6, 12, 4, 8, 8, 9, 5991, 84, 2, 70, 2, 1, 3, 0, 3, 1, 3, 3, 2, 11, 2, 0, 2, 6, 2, 64, 2, 3, 3, 7, 2, 6, 2, 27, 2, 3, 2, 4, 2, 0, 4, 6, 2, 339, 3, 24, 2, 24, 2, 30, 2, 24, 2, 30, 2, 24, 2, 30, 2, 24, 2, 30, 2, 24, 2, 7, 4149, 196, 1340, 3, 2, 26, 2, 1, 2, 0, 3, 0, 2, 9, 2, 3, 2, 0, 2, 0, 7, 0, 5, 0, 2, 0, 2, 0, 2, 2, 2, 1, 2, 0, 3, 0, 2, 0, 2, 0, 2, 0, 2, 0, 2, 1, 2, 0, 3, 3, 2, 6, 2, 3, 2, 3, 2, 0, 2, 9, 2, 16, 6, 2, 2, 4, 2, 16, 4421, 42710, 42, 4148, 12, 221, 16355, 541]; -var astralIdentifierCodes = [509, 0, 227, 0, 150, 4, 294, 9, 1368, 2, 2, 1, 6, 3, 41, 2, 5, 0, 166, 1, 1306, 2, 54, 14, 32, 9, 16, 3, 46, 10, 54, 9, 7, 2, 37, 13, 2, 9, 52, 0, 13, 2, 49, 13, 16, 9, 83, 11, 168, 11, 6, 9, 8, 2, 57, 0, 2, 6, 3, 1, 3, 2, 10, 0, 11, 1, 3, 6, 4, 4, 316, 19, 13, 9, 214, 6, 3, 8, 112, 16, 16, 9, 82, 12, 9, 9, 535, 9, 20855, 9, 135, 4, 60, 6, 26, 9, 1016, 45, 17, 3, 19723, 1, 5319, 4, 4, 5, 9, 7, 3, 6, 31, 3, 149, 2, 1418, 49, 4305, 6, 792618, 239]; - -// This has a complexity linear to the value of the code. The -// assumption is that looking up astral identifier characters is -// rare. -function isInAstralSet(code, set) { - var pos = 65536; - for (var i = 0; i < set.length; i += 2) { - pos += set[i]; - if (pos > code) { - return false; - }pos += set[i + 1]; - if (pos >= code) { - return true; - } - } -} -function isIdentifierStart(code, astral) { - if (code < 65) { - return code === 36; - }if (code < 91) { - return true; - }if (code < 97) { - return code === 95; - }if (code < 123) { - return true; - }if (code <= 65535) { - return code >= 170 && nonASCIIidentifierStart.test(String.fromCharCode(code)); - }if (astral === false) { - return false; - }return isInAstralSet(code, astralIdentifierStartCodes); -} - -function isIdentifierChar(code, astral) { - if (code < 48) { - return code === 36; - }if (code < 58) { - return true; - }if (code < 65) { - return false; - }if (code < 91) { - return true; - }if (code < 97) { - return code === 95; - }if (code < 123) { - return true; - }if (code <= 65535) { - return code >= 170 && nonASCIIidentifier.test(String.fromCharCode(code)); - }if (astral === false) { - return false; - }return isInAstralSet(code, astralIdentifierStartCodes) || isInAstralSet(code, astralIdentifierCodes); -} - -},{}],8:[function(_dereq_,module,exports){ -"use strict"; - -var _classCallCheck = function (instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }; - -// The `getLineInfo` function is mostly useful when the -// `locations` option is off (for performance reasons) and you -// want to find the line/column position for a given character -// offset. `input` should be the code string that the offset refers -// into. - -exports.getLineInfo = getLineInfo; -exports.__esModule = true; - -var Parser = _dereq_("./state").Parser; - -var lineBreakG = _dereq_("./whitespace").lineBreakG; - -var deprecate = _dereq_("util").deprecate; - -// These are used when `options.locations` is on, for the -// `startLoc` and `endLoc` properties. - -var Position = exports.Position = (function () { - function Position(line, col) { - _classCallCheck(this, Position); - - this.line = line; - this.column = col; - } - - Position.prototype.offset = function offset(n) { - return new Position(this.line, this.column + n); - }; - - return Position; -})(); - -var SourceLocation = exports.SourceLocation = function SourceLocation(p, start, end) { - _classCallCheck(this, SourceLocation); - - this.start = start; - this.end = end; - if (p.sourceFile !== null) this.source = p.sourceFile; -}; - -function getLineInfo(input, offset) { - for (var line = 1, cur = 0;;) { - lineBreakG.lastIndex = cur; - var match = lineBreakG.exec(input); - if (match && match.index < offset) { - ++line; - cur = match.index + match[0].length; - } else { - return new Position(line, offset - cur); - } - } -} - -var pp = Parser.prototype; - -// This function is used to raise exceptions on parse errors. It -// takes an offset integer (into the current `input`) to indicate -// the location of the error, attaches the position to the end -// of the error message, and then raises a `SyntaxError` with that -// message. - -pp.raise = function (pos, message) { - var loc = getLineInfo(this.input, pos); - message += " (" + loc.line + ":" + loc.column + ")"; - var err = new SyntaxError(message); - err.pos = pos;err.loc = loc;err.raisedAt = this.pos; - throw err; -}; - -pp.curPosition = function () { - return new Position(this.curLine, this.pos - this.lineStart); -}; - -pp.markPosition = function () { - return this.options.locations ? [this.start, this.startLoc] : this.start; -}; - -},{"./state":13,"./whitespace":19,"util":5}],9:[function(_dereq_,module,exports){ -"use strict"; - -var tt = _dereq_("./tokentype").types; - -var Parser = _dereq_("./state").Parser; - -var reservedWords = _dereq_("./identifier").reservedWords; - -var has = _dereq_("./util").has; - -var pp = Parser.prototype; - -// Convert existing expression atom to assignable pattern -// if possible. - -pp.toAssignable = function (node, isBinding) { - if (this.options.ecmaVersion >= 6 && node) { - switch (node.type) { - case "Identifier": - case "ObjectPattern": - case "ArrayPattern": - case "AssignmentPattern": - break; - - case "ObjectExpression": - node.type = "ObjectPattern"; - for (var i = 0; i < node.properties.length; i++) { - var prop = node.properties[i]; - if (prop.kind !== "init") this.raise(prop.key.start, "Object pattern can't contain getter or setter"); - this.toAssignable(prop.value, isBinding); - } - break; - - case "ArrayExpression": - node.type = "ArrayPattern"; - this.toAssignableList(node.elements, isBinding); - break; - - case "AssignmentExpression": - if (node.operator === "=") { - node.type = "AssignmentPattern"; - } else { - this.raise(node.left.end, "Only '=' operator can be used for specifying default value."); - } - break; - - case "ParenthesizedExpression": - node.expression = this.toAssignable(node.expression, isBinding); - break; - - case "MemberExpression": - if (!isBinding) break; - - default: - this.raise(node.start, "Assigning to rvalue"); - } - } - return node; -}; - -// Convert list of expression atoms to binding list. - -pp.toAssignableList = function (exprList, isBinding) { - var end = exprList.length; - if (end) { - var last = exprList[end - 1]; - if (last && last.type == "RestElement") { - --end; - } else if (last && last.type == "SpreadElement") { - last.type = "RestElement"; - var arg = last.argument; - this.toAssignable(arg, isBinding); - if (arg.type !== "Identifier" && arg.type !== "MemberExpression" && arg.type !== "ArrayPattern") this.unexpected(arg.start); - --end; - } - } - for (var i = 0; i < end; i++) { - var elt = exprList[i]; - if (elt) this.toAssignable(elt, isBinding); - } - return exprList; -}; - -// Parses spread element. - -pp.parseSpread = function (refShorthandDefaultPos) { - var node = this.startNode(); - this.next(); - node.argument = this.parseMaybeAssign(refShorthandDefaultPos); - return this.finishNode(node, "SpreadElement"); -}; - -pp.parseRest = function () { - var node = this.startNode(); - this.next(); - node.argument = this.type === tt.name || this.type === tt.bracketL ? this.parseBindingAtom() : this.unexpected(); - return this.finishNode(node, "RestElement"); -}; - -// Parses lvalue (assignable) atom. - -pp.parseBindingAtom = function () { - if (this.options.ecmaVersion < 6) return this.parseIdent(); - switch (this.type) { - case tt.name: - return this.parseIdent(); - - case tt.bracketL: - var node = this.startNode(); - this.next(); - node.elements = this.parseBindingList(tt.bracketR, true, true); - return this.finishNode(node, "ArrayPattern"); - - case tt.braceL: - return this.parseObj(true); - - default: - this.unexpected(); - } -}; - -pp.parseBindingList = function (close, allowEmpty, allowTrailingComma) { - var elts = [], - first = true; - while (!this.eat(close)) { - if (first) first = false;else this.expect(tt.comma); - if (allowEmpty && this.type === tt.comma) { - elts.push(null); - } else if (allowTrailingComma && this.afterTrailingComma(close)) { - break; - } else if (this.type === tt.ellipsis) { - var rest = this.parseRest(); - this.parseBindingListItem(rest); - elts.push(rest); - this.expect(close); - break; - } else { - var elem = this.parseMaybeDefault(this.start, this.startLoc); - this.parseBindingListItem(elem); - elts.push(elem); - } - } - return elts; -}; - -pp.parseBindingListItem = function (param) { - return param; -}; - -// Parses assignment pattern around given atom if possible. - -pp.parseMaybeDefault = function (startPos, startLoc, left) { - if (Array.isArray(startPos)) { - if (this.options.locations && noCalls === undefined) { - // shift arguments to left by one - left = startLoc; - // flatten startPos - startLoc = startPos[1]; - startPos = startPos[0]; - } - } - left = left || this.parseBindingAtom(); - if (!this.eat(tt.eq)) return left; - var node = this.startNodeAt(startPos, startLoc); - node.operator = "="; - node.left = left; - node.right = this.parseMaybeAssign(); - return this.finishNode(node, "AssignmentPattern"); -}; - -// Verify that a node is an lval — something that can be assigned -// to. - -pp.checkLVal = function (expr, isBinding, checkClashes) { - switch (expr.type) { - case "Identifier": - if (this.strict && (reservedWords.strictBind(expr.name) || reservedWords.strict(expr.name))) this.raise(expr.start, (isBinding ? "Binding " : "Assigning to ") + expr.name + " in strict mode"); - if (checkClashes) { - if (has(checkClashes, expr.name)) this.raise(expr.start, "Argument name clash in strict mode"); - checkClashes[expr.name] = true; - } - break; - - case "MemberExpression": - if (isBinding) this.raise(expr.start, (isBinding ? "Binding" : "Assigning to") + " member expression"); - break; - - case "ObjectPattern": - for (var i = 0; i < expr.properties.length; i++) { - this.checkLVal(expr.properties[i].value, isBinding, checkClashes); - }break; - - case "ArrayPattern": - for (var i = 0; i < expr.elements.length; i++) { - var elem = expr.elements[i]; - if (elem) this.checkLVal(elem, isBinding, checkClashes); - } - break; - - case "AssignmentPattern": - this.checkLVal(expr.left, isBinding, checkClashes); - break; - - case "RestElement": - this.checkLVal(expr.argument, isBinding, checkClashes); - break; - - case "ParenthesizedExpression": - this.checkLVal(expr.expression, isBinding, checkClashes); - break; - - default: - this.raise(expr.start, (isBinding ? "Binding" : "Assigning to") + " rvalue"); - } -}; - -},{"./identifier":7,"./state":13,"./tokentype":17,"./util":18}],10:[function(_dereq_,module,exports){ -"use strict"; - -var _classCallCheck = function (instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }; - -exports.__esModule = true; - -var Parser = _dereq_("./state").Parser; - -var SourceLocation = _dereq_("./location").SourceLocation; - -// Start an AST node, attaching a start offset. - -var pp = Parser.prototype; - -var Node = exports.Node = function Node() { - _classCallCheck(this, Node); -}; - -pp.startNode = function () { - var node = new Node(); - node.start = this.start; - if (this.options.locations) node.loc = new SourceLocation(this, this.startLoc); - if (this.options.directSourceFile) node.sourceFile = this.options.directSourceFile; - if (this.options.ranges) node.range = [this.start, 0]; - return node; -}; - -pp.startNodeAt = function (pos, loc) { - var node = new Node(); - if (Array.isArray(pos)) { - if (this.options.locations && loc === undefined) { - // flatten pos - loc = pos[1]; - pos = pos[0]; - } - } - node.start = pos; - if (this.options.locations) node.loc = new SourceLocation(this, loc); - if (this.options.directSourceFile) node.sourceFile = this.options.directSourceFile; - if (this.options.ranges) node.range = [pos, 0]; - return node; -}; - -// Finish an AST node, adding `type` and `end` properties. - -pp.finishNode = function (node, type) { - node.type = type; - node.end = this.lastTokEnd; - if (this.options.locations) node.loc.end = this.lastTokEndLoc; - if (this.options.ranges) node.range[1] = this.lastTokEnd; - return node; -}; - -// Finish node at given position - -pp.finishNodeAt = function (node, type, pos, loc) { - node.type = type; - if (Array.isArray(pos)) { - if (this.options.locations && loc === undefined) { - // flatten pos - loc = pos[1]; - pos = pos[0]; - } - } - node.end = pos; - if (this.options.locations) node.loc.end = loc; - if (this.options.ranges) node.range[1] = pos; - return node; -}; - -},{"./location":8,"./state":13}],11:[function(_dereq_,module,exports){ - - -// Interpret and default an options object - -"use strict"; - -exports.getOptions = getOptions; -exports.__esModule = true; - -var _util = _dereq_("./util"); - -var has = _util.has; -var isArray = _util.isArray; - -var SourceLocation = _dereq_("./location").SourceLocation; - -// A second optional argument can be given to further configure -// the parser process. These options are recognized: - -var defaultOptions = { - // `ecmaVersion` indicates the ECMAScript version to parse. Must - // be either 3, or 5, or 6. This influences support for strict - // mode, the set of reserved words, support for getters and - // setters and other features. - ecmaVersion: 5, - // Source type ("script" or "module") for different semantics - sourceType: "script", - // `onInsertedSemicolon` can be a callback that will be called - // when a semicolon is automatically inserted. It will be passed - // th position of the comma as an offset, and if `locations` is - // enabled, it is given the location as a `{line, column}` object - // as second argument. - onInsertedSemicolon: null, - // `onTrailingComma` is similar to `onInsertedSemicolon`, but for - // trailing commas. - onTrailingComma: null, - // By default, reserved words are not enforced. Disable - // `allowReserved` to enforce them. When this option has the - // value "never", reserved words and keywords can also not be - // used as property names. - allowReserved: true, - // When enabled, a return at the top level is not considered an - // error. - allowReturnOutsideFunction: false, - // When enabled, import/export statements are not constrained to - // appearing at the top of the program. - allowImportExportEverywhere: false, - // When enabled, hashbang directive in the beginning of file - // is allowed and treated as a line comment. - allowHashBang: false, - // When `locations` is on, `loc` properties holding objects with - // `start` and `end` properties in `{line, column}` form (with - // line being 1-based and column 0-based) will be attached to the - // nodes. - locations: false, - // A function can be passed as `onToken` option, which will - // cause Acorn to call that function with object in the same - // format as tokenize() returns. Note that you are not - // allowed to call the parser from the callback—that will - // corrupt its internal state. - onToken: null, - // A function can be passed as `onComment` option, which will - // cause Acorn to call that function with `(block, text, start, - // end)` parameters whenever a comment is skipped. `block` is a - // boolean indicating whether this is a block (`/* */`) comment, - // `text` is the content of the comment, and `start` and `end` are - // character offsets that denote the start and end of the comment. - // When the `locations` option is on, two more parameters are - // passed, the full `{line, column}` locations of the start and - // end of the comments. Note that you are not allowed to call the - // parser from the callback—that will corrupt its internal state. - onComment: null, - // Nodes have their start and end characters offsets recorded in - // `start` and `end` properties (directly on the node, rather than - // the `loc` object, which holds line/column data. To also add a - // [semi-standardized][range] `range` property holding a `[start, - // end]` array with the same numbers, set the `ranges` option to - // `true`. - // - // [range]: https://bugzilla.mozilla.org/show_bug.cgi?id=745678 - ranges: false, - // It is possible to parse multiple files into a single AST by - // passing the tree produced by parsing the first file as - // `program` option in subsequent parses. This will add the - // toplevel forms of the parsed file to the `Program` (top) node - // of an existing parse tree. - program: null, - // When `locations` is on, you can pass this to record the source - // file in every node's `loc` object. - sourceFile: null, - // This value, if given, is stored in every node, whether - // `locations` is on or off. - directSourceFile: null, - // When enabled, parenthesized expressions are represented by - // (non-standard) ParenthesizedExpression nodes - preserveParens: false, - plugins: {} -};exports.defaultOptions = defaultOptions; - -function getOptions(opts) { - var options = {}; - for (var opt in defaultOptions) { - options[opt] = opts && has(opts, opt) ? opts[opt] : defaultOptions[opt]; - }if (isArray(options.onToken)) { - (function () { - var tokens = options.onToken; - options.onToken = function (token) { - return tokens.push(token); - }; - })(); - } - if (isArray(options.onComment)) options.onComment = pushComment(options, options.onComment); - - return options; -} - -function pushComment(options, array) { - return function (block, text, start, end, startLoc, endLoc) { - var comment = { - type: block ? "Block" : "Line", - value: text, - start: start, - end: end - }; - if (options.locations) comment.loc = new SourceLocation(this, startLoc, endLoc); - if (options.ranges) comment.range = [start, end]; - array.push(comment); - }; -} - -},{"./location":8,"./util":18}],12:[function(_dereq_,module,exports){ -"use strict"; - -var tt = _dereq_("./tokentype").types; - -var Parser = _dereq_("./state").Parser; - -var lineBreak = _dereq_("./whitespace").lineBreak; - -var pp = Parser.prototype; - -// ## Parser utilities - -// Test whether a statement node is the string literal `"use strict"`. - -pp.isUseStrict = function (stmt) { - return this.options.ecmaVersion >= 5 && stmt.type === "ExpressionStatement" && stmt.expression.type === "Literal" && stmt.expression.value === "use strict"; -}; - -// Predicate that tests whether the next token is of the given -// type, and if yes, consumes it as a side effect. - -pp.eat = function (type) { - if (this.type === type) { - this.next(); - return true; - } else { - return false; - } -}; - -// Tests whether parsed token is a contextual keyword. - -pp.isContextual = function (name) { - return this.type === tt.name && this.value === name; -}; - -// Consumes contextual keyword if possible. - -pp.eatContextual = function (name) { - return this.value === name && this.eat(tt.name); -}; - -// Asserts that following token is given contextual keyword. - -pp.expectContextual = function (name) { - if (!this.eatContextual(name)) this.unexpected(); -}; - -// Test whether a semicolon can be inserted at the current position. - -pp.canInsertSemicolon = function () { - return this.type === tt.eof || this.type === tt.braceR || lineBreak.test(this.input.slice(this.lastTokEnd, this.start)); -}; - -pp.insertSemicolon = function () { - if (this.canInsertSemicolon()) { - if (this.options.onInsertedSemicolon) this.options.onInsertedSemicolon(this.lastTokEnd, this.lastTokEndLoc); - return true; - } -}; - -// Consume a semicolon, or, failing that, see if we are allowed to -// pretend that there is a semicolon at this position. - -pp.semicolon = function () { - if (!this.eat(tt.semi) && !this.insertSemicolon()) this.unexpected(); -}; - -pp.afterTrailingComma = function (tokType) { - if (this.type == tokType) { - if (this.options.onTrailingComma) this.options.onTrailingComma(this.lastTokStart, this.lastTokStartLoc); - this.next(); - return true; - } -}; - -// Expect a token of a given type. If found, consume it, otherwise, -// raise an unexpected token error. - -pp.expect = function (type) { - this.eat(type) || this.unexpected(); -}; - -// Raise an unexpected token error. - -pp.unexpected = function (pos) { - this.raise(pos != null ? pos : this.start, "Unexpected token"); -}; - -},{"./state":13,"./tokentype":17,"./whitespace":19}],13:[function(_dereq_,module,exports){ -"use strict"; - -exports.Parser = Parser; -exports.__esModule = true; - -var _identifier = _dereq_("./identifier"); - -var reservedWords = _identifier.reservedWords; -var keywords = _identifier.keywords; - -var tt = _dereq_("./tokentype").types; - -var lineBreak = _dereq_("./whitespace").lineBreak; - -function Parser(options, input, startPos) { - this.options = options; - this.sourceFile = this.options.sourceFile || null; - this.isKeyword = keywords[this.options.ecmaVersion >= 6 ? 6 : 5]; - this.isReservedWord = reservedWords[this.options.ecmaVersion]; - this.input = input; - - // Load plugins - this.loadPlugins(this.options.plugins); - - // Set up token state - - // The current position of the tokenizer in the input. - if (startPos) { - this.pos = startPos; - this.lineStart = Math.max(0, this.input.lastIndexOf("\n", startPos)); - this.curLine = this.input.slice(0, this.lineStart).split(lineBreak).length; - } else { - this.pos = this.lineStart = 0; - this.curLine = 1; - } - - // Properties of the current token: - // Its type - this.type = tt.eof; - // For tokens that include more information than their type, the value - this.value = null; - // Its start and end offset - this.start = this.end = this.pos; - // And, if locations are used, the {line, column} object - // corresponding to those offsets - this.startLoc = this.endLoc = null; - - // Position information for the previous token - this.lastTokEndLoc = this.lastTokStartLoc = null; - this.lastTokStart = this.lastTokEnd = this.pos; - - // The context stack is used to superficially track syntactic - // context to predict whether a regular expression is allowed in a - // given position. - this.context = this.initialContext(); - this.exprAllowed = true; - - // Figure out if it's a module code. - this.strict = this.inModule = this.options.sourceType === "module"; - - // Used to signify the start of a potential arrow function - this.potentialArrowAt = -1; - - // Flags to track whether we are in a function, a generator. - this.inFunction = this.inGenerator = false; - // Labels in scope. - this.labels = []; - - // If enabled, skip leading hashbang line. - if (this.pos === 0 && this.options.allowHashBang && this.input.slice(0, 2) === "#!") this.skipLineComment(2); -} - -Parser.prototype.extend = function (name, f) { - this[name] = f(this[name]); -}; - -// Registered plugins - -var plugins = {}; - -exports.plugins = plugins; -Parser.prototype.loadPlugins = function (plugins) { - for (var _name in plugins) { - var plugin = exports.plugins[_name]; - if (!plugin) throw new Error("Plugin '" + _name + "' not found"); - plugin(this, plugins[_name]); - } -}; - -},{"./identifier":7,"./tokentype":17,"./whitespace":19}],14:[function(_dereq_,module,exports){ -"use strict"; - -var tt = _dereq_("./tokentype").types; - -var Parser = _dereq_("./state").Parser; - -var lineBreak = _dereq_("./whitespace").lineBreak; - -var pp = Parser.prototype; - -// ### Statement parsing - -// Parse a program. Initializes the parser, reads any number of -// statements, and wraps them in a Program node. Optionally takes a -// `program` argument. If present, the statements will be appended -// to its body instead of creating a new node. - -pp.parseTopLevel = function (node) { - var first = true; - if (!node.body) node.body = []; - while (this.type !== tt.eof) { - var stmt = this.parseStatement(true, true); - node.body.push(stmt); - if (first && this.isUseStrict(stmt)) this.setStrict(true); - first = false; - } - this.next(); - if (this.options.ecmaVersion >= 6) { - node.sourceType = this.options.sourceType; - } - return this.finishNode(node, "Program"); -}; - -var loopLabel = { kind: "loop" }, - switchLabel = { kind: "switch" }; - -// Parse a single statement. -// -// If expecting a statement and finding a slash operator, parse a -// regular expression literal. This is to handle cases like -// `if (foo) /blah/.exec(foo)`, where looking at the previous token -// does not help. - -pp.parseStatement = function (declaration, topLevel) { - var starttype = this.type, - node = this.startNode(); - - // Most types of statements are recognized by the keyword they - // start with. Many are trivial to parse, some require a bit of - // complexity. - - switch (starttype) { - case tt._break:case tt._continue: - return this.parseBreakContinueStatement(node, starttype.keyword); - case tt._debugger: - return this.parseDebuggerStatement(node); - case tt._do: - return this.parseDoStatement(node); - case tt._for: - return this.parseForStatement(node); - case tt._function: - if (!declaration && this.options.ecmaVersion >= 6) this.unexpected(); - return this.parseFunctionStatement(node); - case tt._class: - if (!declaration) this.unexpected(); - return this.parseClass(node, true); - case tt._if: - return this.parseIfStatement(node); - case tt._return: - return this.parseReturnStatement(node); - case tt._switch: - return this.parseSwitchStatement(node); - case tt._throw: - return this.parseThrowStatement(node); - case tt._try: - return this.parseTryStatement(node); - case tt._let:case tt._const: - if (!declaration) this.unexpected(); // NOTE: falls through to _var - case tt._var: - return this.parseVarStatement(node, starttype); - case tt._while: - return this.parseWhileStatement(node); - case tt._with: - return this.parseWithStatement(node); - case tt.braceL: - return this.parseBlock(); - case tt.semi: - return this.parseEmptyStatement(node); - case tt._export: - case tt._import: - if (!this.options.allowImportExportEverywhere) { - if (!topLevel) this.raise(this.start, "'import' and 'export' may only appear at the top level"); - if (!this.inModule) this.raise(this.start, "'import' and 'export' may appear only with 'sourceType: module'"); - } - return starttype === tt._import ? this.parseImport(node) : this.parseExport(node); - - // If the statement does not start with a statement keyword or a - // brace, it's an ExpressionStatement or LabeledStatement. We - // simply start parsing an expression, and afterwards, if the - // next token is a colon and the expression was a simple - // Identifier node, we switch to interpreting it as a label. - default: - var maybeName = this.value, - expr = this.parseExpression(); - if (starttype === tt.name && expr.type === "Identifier" && this.eat(tt.colon)) return this.parseLabeledStatement(node, maybeName, expr);else return this.parseExpressionStatement(node, expr); - } -}; - -pp.parseBreakContinueStatement = function (node, keyword) { - var isBreak = keyword == "break"; - this.next(); - if (this.eat(tt.semi) || this.insertSemicolon()) node.label = null;else if (this.type !== tt.name) this.unexpected();else { - node.label = this.parseIdent(); - this.semicolon(); - } - - // Verify that there is an actual destination to break or - // continue to. - for (var i = 0; i < this.labels.length; ++i) { - var lab = this.labels[i]; - if (node.label == null || lab.name === node.label.name) { - if (lab.kind != null && (isBreak || lab.kind === "loop")) break; - if (node.label && isBreak) break; - } - } - if (i === this.labels.length) this.raise(node.start, "Unsyntactic " + keyword); - return this.finishNode(node, isBreak ? "BreakStatement" : "ContinueStatement"); -}; - -pp.parseDebuggerStatement = function (node) { - this.next(); - this.semicolon(); - return this.finishNode(node, "DebuggerStatement"); -}; - -pp.parseDoStatement = function (node) { - this.next(); - this.labels.push(loopLabel); - node.body = this.parseStatement(false); - this.labels.pop(); - this.expect(tt._while); - node.test = this.parseParenExpression(); - if (this.options.ecmaVersion >= 6) this.eat(tt.semi);else this.semicolon(); - return this.finishNode(node, "DoWhileStatement"); -}; - -// Disambiguating between a `for` and a `for`/`in` or `for`/`of` -// loop is non-trivial. Basically, we have to parse the init `var` -// statement or expression, disallowing the `in` operator (see -// the second parameter to `parseExpression`), and then check -// whether the next token is `in` or `of`. When there is no init -// part (semicolon immediately after the opening parenthesis), it -// is a regular `for` loop. - -pp.parseForStatement = function (node) { - this.next(); - this.labels.push(loopLabel); - this.expect(tt.parenL); - if (this.type === tt.semi) return this.parseFor(node, null); - if (this.type === tt._var || this.type === tt._let || this.type === tt._const) { - var _init = this.startNode(), - varKind = this.type; - this.next(); - this.parseVar(_init, true, varKind); - this.finishNode(_init, "VariableDeclaration"); - if ((this.type === tt._in || this.options.ecmaVersion >= 6 && this.isContextual("of")) && _init.declarations.length === 1 && !(varKind !== tt._var && _init.declarations[0].init)) return this.parseForIn(node, _init); - return this.parseFor(node, _init); - } - var refShorthandDefaultPos = { start: 0 }; - var init = this.parseExpression(true, refShorthandDefaultPos); - if (this.type === tt._in || this.options.ecmaVersion >= 6 && this.isContextual("of")) { - this.toAssignable(init); - this.checkLVal(init); - return this.parseForIn(node, init); - } else if (refShorthandDefaultPos.start) { - this.unexpected(refShorthandDefaultPos.start); - } - return this.parseFor(node, init); -}; - -pp.parseFunctionStatement = function (node) { - this.next(); - return this.parseFunction(node, true); -}; - -pp.parseIfStatement = function (node) { - this.next(); - node.test = this.parseParenExpression(); - node.consequent = this.parseStatement(false); - node.alternate = this.eat(tt._else) ? this.parseStatement(false) : null; - return this.finishNode(node, "IfStatement"); -}; - -pp.parseReturnStatement = function (node) { - if (!this.inFunction && !this.options.allowReturnOutsideFunction) this.raise(this.start, "'return' outside of function"); - this.next(); - - // In `return` (and `break`/`continue`), the keywords with - // optional arguments, we eagerly look for a semicolon or the - // possibility to insert one. - - if (this.eat(tt.semi) || this.insertSemicolon()) node.argument = null;else { - node.argument = this.parseExpression();this.semicolon(); - } - return this.finishNode(node, "ReturnStatement"); -}; - -pp.parseSwitchStatement = function (node) { - this.next(); - node.discriminant = this.parseParenExpression(); - node.cases = []; - this.expect(tt.braceL); - this.labels.push(switchLabel); - - // Statements under must be grouped (by label) in SwitchCase - // nodes. `cur` is used to keep the node that we are currently - // adding statements to. - - for (var cur, sawDefault; this.type != tt.braceR;) { - if (this.type === tt._case || this.type === tt._default) { - var isCase = this.type === tt._case; - if (cur) this.finishNode(cur, "SwitchCase"); - node.cases.push(cur = this.startNode()); - cur.consequent = []; - this.next(); - if (isCase) { - cur.test = this.parseExpression(); - } else { - if (sawDefault) this.raise(this.lastTokStart, "Multiple default clauses"); - sawDefault = true; - cur.test = null; - } - this.expect(tt.colon); - } else { - if (!cur) this.unexpected(); - cur.consequent.push(this.parseStatement(true)); - } - } - if (cur) this.finishNode(cur, "SwitchCase"); - this.next(); // Closing brace - this.labels.pop(); - return this.finishNode(node, "SwitchStatement"); -}; - -pp.parseThrowStatement = function (node) { - this.next(); - if (lineBreak.test(this.input.slice(this.lastTokEnd, this.start))) this.raise(this.lastTokEnd, "Illegal newline after throw"); - node.argument = this.parseExpression(); - this.semicolon(); - return this.finishNode(node, "ThrowStatement"); -}; - -// Reused empty array added for node fields that are always empty. - -var empty = []; - -pp.parseTryStatement = function (node) { - this.next(); - node.block = this.parseBlock(); - node.handler = null; - if (this.type === tt._catch) { - var clause = this.startNode(); - this.next(); - this.expect(tt.parenL); - clause.param = this.parseBindingAtom(); - this.checkLVal(clause.param, true); - this.expect(tt.parenR); - clause.guard = null; - clause.body = this.parseBlock(); - node.handler = this.finishNode(clause, "CatchClause"); - } - node.guardedHandlers = empty; - node.finalizer = this.eat(tt._finally) ? this.parseBlock() : null; - if (!node.handler && !node.finalizer) this.raise(node.start, "Missing catch or finally clause"); - return this.finishNode(node, "TryStatement"); -}; - -pp.parseVarStatement = function (node, kind) { - this.next(); - this.parseVar(node, false, kind); - this.semicolon(); - return this.finishNode(node, "VariableDeclaration"); -}; - -pp.parseWhileStatement = function (node) { - this.next(); - node.test = this.parseParenExpression(); - this.labels.push(loopLabel); - node.body = this.parseStatement(false); - this.labels.pop(); - return this.finishNode(node, "WhileStatement"); -}; - -pp.parseWithStatement = function (node) { - if (this.strict) this.raise(this.start, "'with' in strict mode"); - this.next(); - node.object = this.parseParenExpression(); - node.body = this.parseStatement(false); - return this.finishNode(node, "WithStatement"); -}; - -pp.parseEmptyStatement = function (node) { - this.next(); - return this.finishNode(node, "EmptyStatement"); -}; - -pp.parseLabeledStatement = function (node, maybeName, expr) { - for (var i = 0; i < this.labels.length; ++i) { - if (this.labels[i].name === maybeName) this.raise(expr.start, "Label '" + maybeName + "' is already declared"); - }var kind = this.type.isLoop ? "loop" : this.type === tt._switch ? "switch" : null; - this.labels.push({ name: maybeName, kind: kind }); - node.body = this.parseStatement(true); - this.labels.pop(); - node.label = expr; - return this.finishNode(node, "LabeledStatement"); -}; - -pp.parseExpressionStatement = function (node, expr) { - node.expression = expr; - this.semicolon(); - return this.finishNode(node, "ExpressionStatement"); -}; - -// Parse a semicolon-enclosed block of statements, handling `"use -// strict"` declarations when `allowStrict` is true (used for -// function bodies). - -pp.parseBlock = function (allowStrict) { - var node = this.startNode(), - first = true, - oldStrict = undefined; - node.body = []; - this.expect(tt.braceL); - while (!this.eat(tt.braceR)) { - var stmt = this.parseStatement(true); - node.body.push(stmt); - if (first && allowStrict && this.isUseStrict(stmt)) { - oldStrict = this.strict; - this.setStrict(this.strict = true); - } - first = false; - } - if (oldStrict === false) this.setStrict(false); - return this.finishNode(node, "BlockStatement"); -}; - -// Parse a regular `for` loop. The disambiguation code in -// `parseStatement` will already have parsed the init statement or -// expression. - -pp.parseFor = function (node, init) { - node.init = init; - this.expect(tt.semi); - node.test = this.type === tt.semi ? null : this.parseExpression(); - this.expect(tt.semi); - node.update = this.type === tt.parenR ? null : this.parseExpression(); - this.expect(tt.parenR); - node.body = this.parseStatement(false); - this.labels.pop(); - return this.finishNode(node, "ForStatement"); -}; - -// Parse a `for`/`in` and `for`/`of` loop, which are almost -// same from parser's perspective. - -pp.parseForIn = function (node, init) { - var type = this.type === tt._in ? "ForInStatement" : "ForOfStatement"; - this.next(); - node.left = init; - node.right = this.parseExpression(); - this.expect(tt.parenR); - node.body = this.parseStatement(false); - this.labels.pop(); - return this.finishNode(node, type); -}; - -// Parse a list of variable declarations. - -pp.parseVar = function (node, isFor, kind) { - node.declarations = []; - node.kind = kind.keyword; - for (;;) { - var decl = this.startNode(); - this.parseVarId(decl); - if (this.eat(tt.eq)) { - decl.init = this.parseMaybeAssign(isFor); - } else if (kind === tt._const && !(this.type === tt._in || this.options.ecmaVersion >= 6 && this.isContextual("of"))) { - this.unexpected(); - } else if (decl.id.type != "Identifier" && !(isFor && (this.type === tt._in || this.isContextual("of")))) { - this.raise(this.lastTokEnd, "Complex binding patterns require an initialization value"); - } else { - decl.init = null; - } - node.declarations.push(this.finishNode(decl, "VariableDeclarator")); - if (!this.eat(tt.comma)) break; - } - return node; -}; - -pp.parseVarId = function (decl) { - decl.id = this.parseBindingAtom(); - this.checkLVal(decl.id, true); -}; - -// Parse a function declaration or literal (depending on the -// `isStatement` parameter). - -pp.parseFunction = function (node, isStatement, allowExpressionBody) { - this.initFunction(node); - if (this.options.ecmaVersion >= 6) node.generator = this.eat(tt.star); - if (isStatement || this.type === tt.name) node.id = this.parseIdent(); - this.parseFunctionParams(node); - this.parseFunctionBody(node, allowExpressionBody); - return this.finishNode(node, isStatement ? "FunctionDeclaration" : "FunctionExpression"); -}; - -pp.parseFunctionParams = function (node) { - this.expect(tt.parenL); - node.params = this.parseBindingList(tt.parenR, false, false); -}; - -// Parse a class declaration or literal (depending on the -// `isStatement` parameter). - -pp.parseClass = function (node, isStatement) { - this.next(); - this.parseClassId(node, isStatement); - this.parseClassSuper(node); - var classBody = this.startNode(); - var hadConstructor = false; - classBody.body = []; - this.expect(tt.braceL); - while (!this.eat(tt.braceR)) { - if (this.eat(tt.semi)) continue; - var method = this.startNode(); - var isGenerator = this.eat(tt.star); - var isMaybeStatic = this.type === tt.name && this.value === "static"; - this.parsePropertyName(method); - method["static"] = isMaybeStatic && this.type !== tt.parenL; - if (method["static"]) { - if (isGenerator) this.unexpected(); - isGenerator = this.eat(tt.star); - this.parsePropertyName(method); - } - method.kind = "method"; - if (!method.computed) { - var key = method.key; - - var isGetSet = false; - if (!isGenerator && key.type === "Identifier" && this.type !== tt.parenL && (key.name === "get" || key.name === "set")) { - isGetSet = true; - method.kind = key.name; - key = this.parsePropertyName(method); - } - if (!method["static"] && (key.type === "Identifier" && key.name === "constructor" || key.type === "Literal" && key.value === "constructor")) { - if (hadConstructor) this.raise(key.start, "Duplicate constructor in the same class"); - if (isGetSet) this.raise(key.start, "Constructor can't have get/set modifier"); - if (isGenerator) this.raise(key.start, "Constructor can't be a generator"); - method.kind = "constructor"; - hadConstructor = true; - } - } - this.parseClassMethod(classBody, method, isGenerator); - } - node.body = this.finishNode(classBody, "ClassBody"); - return this.finishNode(node, isStatement ? "ClassDeclaration" : "ClassExpression"); -}; - -pp.parseClassMethod = function (classBody, method, isGenerator) { - method.value = this.parseMethod(isGenerator); - classBody.body.push(this.finishNode(method, "MethodDefinition")); -}; - -pp.parseClassId = function (node, isStatement) { - node.id = this.type === tt.name ? this.parseIdent() : isStatement ? this.unexpected() : null; -}; - -pp.parseClassSuper = function (node) { - node.superClass = this.eat(tt._extends) ? this.parseExprSubscripts() : null; -}; - -// Parses module export declaration. - -pp.parseExport = function (node) { - this.next(); - // export * from '...' - if (this.eat(tt.star)) { - this.expectContextual("from"); - node.source = this.type === tt.string ? this.parseExprAtom() : this.unexpected(); - this.semicolon(); - return this.finishNode(node, "ExportAllDeclaration"); - } - if (this.eat(tt._default)) { - // export default ... - var expr = this.parseMaybeAssign(); - var needsSemi = true; - if (expr.type == "FunctionExpression" || expr.type == "ClassExpression") { - needsSemi = false; - if (expr.id) { - expr.type = expr.type == "FunctionExpression" ? "FunctionDeclaration" : "ClassDeclaration"; - } - } - node.declaration = expr; - if (needsSemi) this.semicolon(); - return this.finishNode(node, "ExportDefaultDeclaration"); - } - // export var|const|let|function|class ... - if (this.shouldParseExportStatement()) { - node.declaration = this.parseStatement(true); - node.specifiers = []; - node.source = null; - } else { - // export { x, y as z } [from '...'] - node.declaration = null; - node.specifiers = this.parseExportSpecifiers(); - if (this.eatContextual("from")) { - node.source = this.type === tt.string ? this.parseExprAtom() : this.unexpected(); - } else { - node.source = null; - } - this.semicolon(); - } - return this.finishNode(node, "ExportNamedDeclaration"); -}; - -pp.shouldParseExportStatement = function () { - return this.type.keyword; -}; - -// Parses a comma-separated list of module exports. - -pp.parseExportSpecifiers = function () { - var nodes = [], - first = true; - // export { x, y as z } [from '...'] - this.expect(tt.braceL); - while (!this.eat(tt.braceR)) { - if (!first) { - this.expect(tt.comma); - if (this.afterTrailingComma(tt.braceR)) break; - } else first = false; - - var node = this.startNode(); - node.local = this.parseIdent(this.type === tt._default); - node.exported = this.eatContextual("as") ? this.parseIdent(true) : node.local; - nodes.push(this.finishNode(node, "ExportSpecifier")); - } - return nodes; -}; - -// Parses import declaration. - -pp.parseImport = function (node) { - this.next(); - // import '...' - if (this.type === tt.string) { - node.specifiers = empty; - node.source = this.parseExprAtom(); - node.kind = ""; - } else { - node.specifiers = this.parseImportSpecifiers(); - this.expectContextual("from"); - node.source = this.type === tt.string ? this.parseExprAtom() : this.unexpected(); - } - this.semicolon(); - return this.finishNode(node, "ImportDeclaration"); -}; - -// Parses a comma-separated list of module imports. - -pp.parseImportSpecifiers = function () { - var nodes = [], - first = true; - if (this.type === tt.name) { - // import defaultObj, { x, y as z } from '...' - var node = this.startNode(); - node.local = this.parseIdent(); - this.checkLVal(node.local, true); - nodes.push(this.finishNode(node, "ImportDefaultSpecifier")); - if (!this.eat(tt.comma)) return nodes; - } - if (this.type === tt.star) { - var node = this.startNode(); - this.next(); - this.expectContextual("as"); - node.local = this.parseIdent(); - this.checkLVal(node.local, true); - nodes.push(this.finishNode(node, "ImportNamespaceSpecifier")); - return nodes; - } - this.expect(tt.braceL); - while (!this.eat(tt.braceR)) { - if (!first) { - this.expect(tt.comma); - if (this.afterTrailingComma(tt.braceR)) break; - } else first = false; - - var node = this.startNode(); - node.imported = this.parseIdent(true); - node.local = this.eatContextual("as") ? this.parseIdent() : node.imported; - this.checkLVal(node.local, true); - nodes.push(this.finishNode(node, "ImportSpecifier")); - } - return nodes; -}; - -},{"./state":13,"./tokentype":17,"./whitespace":19}],15:[function(_dereq_,module,exports){ -"use strict"; - -var _classCallCheck = function (instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }; - -exports.__esModule = true; -// The algorithm used to determine whether a regexp can appear at a -// given point in the program is loosely based on sweet.js' approach. -// See https://github.com/mozilla/sweet.js/wiki/design - -var Parser = _dereq_("./state").Parser; - -var tt = _dereq_("./tokentype").types; - -var lineBreak = _dereq_("./whitespace").lineBreak; - -var TokContext = exports.TokContext = function TokContext(token, isExpr, preserveSpace, override) { - _classCallCheck(this, TokContext); - - this.token = token; - this.isExpr = isExpr; - this.preserveSpace = preserveSpace; - this.override = override; -}; - -var types = { - b_stat: new TokContext("{", false), - b_expr: new TokContext("{", true), - b_tmpl: new TokContext("${", true), - p_stat: new TokContext("(", false), - p_expr: new TokContext("(", true), - q_tmpl: new TokContext("`", true, true, function (p) { - return p.readTmplToken(); - }), - f_expr: new TokContext("function", true) -}; - -exports.types = types; -var pp = Parser.prototype; - -pp.initialContext = function () { - return [types.b_stat]; -}; - -pp.braceIsBlock = function (prevType) { - var parent = undefined; - if (prevType === tt.colon && (parent = this.curContext()).token == "{") return !parent.isExpr; - if (prevType === tt._return) return lineBreak.test(this.input.slice(this.lastTokEnd, this.start)); - if (prevType === tt._else || prevType === tt.semi || prevType === tt.eof) return true; - if (prevType == tt.braceL) return this.curContext() === types.b_stat; - return !this.exprAllowed; -}; - -pp.updateContext = function (prevType) { - var update = undefined, - type = this.type; - if (type.keyword && prevType == tt.dot) this.exprAllowed = false;else if (update = type.updateContext) update.call(this, prevType);else this.exprAllowed = type.beforeExpr; -}; - -// Token-specific context update code - -tt.parenR.updateContext = tt.braceR.updateContext = function () { - if (this.context.length == 1) { - this.exprAllowed = true; - return; - } - var out = this.context.pop(); - if (out === types.b_stat && this.curContext() === types.f_expr) { - this.context.pop(); - this.exprAllowed = false; - } else if (out === types.b_tmpl) { - this.exprAllowed = true; - } else { - this.exprAllowed = !out.isExpr; - } -}; - -tt.braceL.updateContext = function (prevType) { - this.context.push(this.braceIsBlock(prevType) ? types.b_stat : types.b_expr); - this.exprAllowed = true; -}; - -tt.dollarBraceL.updateContext = function () { - this.context.push(types.b_tmpl); - this.exprAllowed = true; -}; - -tt.parenL.updateContext = function (prevType) { - var statementParens = prevType === tt._if || prevType === tt._for || prevType === tt._with || prevType === tt._while; - this.context.push(statementParens ? types.p_stat : types.p_expr); - this.exprAllowed = true; -}; - -tt.incDec.updateContext = function () {}; - -tt._function.updateContext = function () { - if (this.curContext() !== types.b_stat) this.context.push(types.f_expr); - this.exprAllowed = false; -}; - -tt.backQuote.updateContext = function () { - if (this.curContext() === types.q_tmpl) this.context.pop();else this.context.push(types.q_tmpl); - this.exprAllowed = false; -}; - -// tokExprAllowed stays unchanged - -},{"./state":13,"./tokentype":17,"./whitespace":19}],16:[function(_dereq_,module,exports){ -"use strict"; - -var _classCallCheck = function (instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }; - -exports.__esModule = true; - -var _identifier = _dereq_("./identifier"); - -var isIdentifierStart = _identifier.isIdentifierStart; -var isIdentifierChar = _identifier.isIdentifierChar; - -var _tokentype = _dereq_("./tokentype"); - -var tt = _tokentype.types; -var keywordTypes = _tokentype.keywords; - -var Parser = _dereq_("./state").Parser; - -var SourceLocation = _dereq_("./location").SourceLocation; - -var _whitespace = _dereq_("./whitespace"); - -var lineBreak = _whitespace.lineBreak; -var lineBreakG = _whitespace.lineBreakG; -var isNewLine = _whitespace.isNewLine; -var nonASCIIwhitespace = _whitespace.nonASCIIwhitespace; - -// Object type used to represent tokens. Note that normally, tokens -// simply exist as properties on the parser object. This is only -// used for the onToken callback and the external tokenizer. - -var Token = exports.Token = function Token(p) { - _classCallCheck(this, Token); - - this.type = p.type; - this.value = p.value; - this.start = p.start; - this.end = p.end; - if (p.options.locations) this.loc = new SourceLocation(p, p.startLoc, p.endLoc); - if (p.options.ranges) this.range = [p.start, p.end]; -}; - -// ## Tokenizer - -var pp = Parser.prototype; - -// Are we running under Rhino? -var isRhino = typeof Packages !== "undefined"; - -// Move to the next token - -pp.next = function () { - if (this.options.onToken) this.options.onToken(new Token(this)); - - this.lastTokEnd = this.end; - this.lastTokStart = this.start; - this.lastTokEndLoc = this.endLoc; - this.lastTokStartLoc = this.startLoc; - this.nextToken(); -}; - -pp.getToken = function () { - this.next(); - return new Token(this); -}; - -// If we're in an ES6 environment, make parsers iterable -if (typeof Symbol !== "undefined") pp[Symbol.iterator] = function () { - var self = this; - return { next: function next() { - var token = self.getToken(); - return { - done: token.type === tt.eof, - value: token - }; - } }; -}; - -// Toggle strict mode. Re-reads the next number or string to please -// pedantic tests (`"use strict"; 010;` should fail). - -pp.setStrict = function (strict) { - this.strict = strict; - if (this.type !== tt.num && this.type !== tt.string) return; - this.pos = this.start; - if (this.options.locations) { - while (this.pos < this.lineStart) { - this.lineStart = this.input.lastIndexOf("\n", this.lineStart - 2) + 1; - --this.curLine; - } - } - this.nextToken(); -}; - -pp.curContext = function () { - return this.context[this.context.length - 1]; -}; - -// Read a single token, updating the parser object's token-related -// properties. - -pp.nextToken = function () { - var curContext = this.curContext(); - if (!curContext || !curContext.preserveSpace) this.skipSpace(); - - this.start = this.pos; - if (this.options.locations) this.startLoc = this.curPosition(); - if (this.pos >= this.input.length) return this.finishToken(tt.eof); - - if (curContext.override) return curContext.override(this);else this.readToken(this.fullCharCodeAtPos()); -}; - -pp.readToken = function (code) { - // Identifier or keyword. '\uXXXX' sequences are allowed in - // identifiers, so '\' also dispatches to that. - if (isIdentifierStart(code, this.options.ecmaVersion >= 6) || code === 92 /* '\' */) return this.readWord(); - - return this.getTokenFromCode(code); -}; - -pp.fullCharCodeAtPos = function () { - var code = this.input.charCodeAt(this.pos); - if (code <= 55295 || code >= 57344) return code; - var next = this.input.charCodeAt(this.pos + 1); - return (code << 10) + next - 56613888; -}; - -pp.skipBlockComment = function () { - var startLoc = this.options.onComment && this.options.locations && this.curPosition(); - var start = this.pos, - end = this.input.indexOf("*/", this.pos += 2); - if (end === -1) this.raise(this.pos - 2, "Unterminated comment"); - this.pos = end + 2; - if (this.options.locations) { - lineBreakG.lastIndex = start; - var match = undefined; - while ((match = lineBreakG.exec(this.input)) && match.index < this.pos) { - ++this.curLine; - this.lineStart = match.index + match[0].length; - } - } - if (this.options.onComment) this.options.onComment(true, this.input.slice(start + 2, end), start, this.pos, startLoc, this.options.locations && this.curPosition()); -}; - -pp.skipLineComment = function (startSkip) { - var start = this.pos; - var startLoc = this.options.onComment && this.options.locations && this.curPosition(); - var ch = this.input.charCodeAt(this.pos += startSkip); - while (this.pos < this.input.length && ch !== 10 && ch !== 13 && ch !== 8232 && ch !== 8233) { - ++this.pos; - ch = this.input.charCodeAt(this.pos); - } - if (this.options.onComment) this.options.onComment(false, this.input.slice(start + startSkip, this.pos), start, this.pos, startLoc, this.options.locations && this.curPosition()); -}; - -// Called at the start of the parse and after every token. Skips -// whitespace and comments, and. - -pp.skipSpace = function () { - while (this.pos < this.input.length) { - var ch = this.input.charCodeAt(this.pos); - if (ch === 32) { - // ' ' - ++this.pos; - } else if (ch === 13) { - ++this.pos; - var next = this.input.charCodeAt(this.pos); - if (next === 10) { - ++this.pos; - } - if (this.options.locations) { - ++this.curLine; - this.lineStart = this.pos; - } - } else if (ch === 10 || ch === 8232 || ch === 8233) { - ++this.pos; - if (this.options.locations) { - ++this.curLine; - this.lineStart = this.pos; - } - } else if (ch > 8 && ch < 14) { - ++this.pos; - } else if (ch === 47) { - // '/' - var next = this.input.charCodeAt(this.pos + 1); - if (next === 42) { - // '*' - this.skipBlockComment(); - } else if (next === 47) { - // '/' - this.skipLineComment(2); - } else break; - } else if (ch === 160) { - // '\xa0' - ++this.pos; - } else if (ch >= 5760 && nonASCIIwhitespace.test(String.fromCharCode(ch))) { - ++this.pos; - } else { - break; - } - } -}; - -// Called at the end of every token. Sets `end`, `val`, and -// maintains `context` and `exprAllowed`, and skips the space after -// the token, so that the next one's `start` will point at the -// right position. - -pp.finishToken = function (type, val) { - this.end = this.pos; - if (this.options.locations) this.endLoc = this.curPosition(); - var prevType = this.type; - this.type = type; - this.value = val; - - this.updateContext(prevType); -}; - -// ### Token reading - -// This is the function that is called to fetch the next token. It -// is somewhat obscure, because it works in character codes rather -// than characters, and because operator parsing has been inlined -// into it. -// -// All in the name of speed. -// -pp.readToken_dot = function () { - var next = this.input.charCodeAt(this.pos + 1); - if (next >= 48 && next <= 57) return this.readNumber(true); - var next2 = this.input.charCodeAt(this.pos + 2); - if (this.options.ecmaVersion >= 6 && next === 46 && next2 === 46) { - // 46 = dot '.' - this.pos += 3; - return this.finishToken(tt.ellipsis); - } else { - ++this.pos; - return this.finishToken(tt.dot); - } -}; - -pp.readToken_slash = function () { - // '/' - var next = this.input.charCodeAt(this.pos + 1); - if (this.exprAllowed) { - ++this.pos;return this.readRegexp(); - } - if (next === 61) return this.finishOp(tt.assign, 2); - return this.finishOp(tt.slash, 1); -}; - -pp.readToken_mult_modulo = function (code) { - // '%*' - var next = this.input.charCodeAt(this.pos + 1); - if (next === 61) return this.finishOp(tt.assign, 2); - return this.finishOp(code === 42 ? tt.star : tt.modulo, 1); -}; - -pp.readToken_pipe_amp = function (code) { - // '|&' - var next = this.input.charCodeAt(this.pos + 1); - if (next === code) return this.finishOp(code === 124 ? tt.logicalOR : tt.logicalAND, 2); - if (next === 61) return this.finishOp(tt.assign, 2); - return this.finishOp(code === 124 ? tt.bitwiseOR : tt.bitwiseAND, 1); -}; - -pp.readToken_caret = function () { - // '^' - var next = this.input.charCodeAt(this.pos + 1); - if (next === 61) return this.finishOp(tt.assign, 2); - return this.finishOp(tt.bitwiseXOR, 1); -}; - -pp.readToken_plus_min = function (code) { - // '+-' - var next = this.input.charCodeAt(this.pos + 1); - if (next === code) { - if (next == 45 && this.input.charCodeAt(this.pos + 2) == 62 && lineBreak.test(this.input.slice(this.lastTokEnd, this.pos))) { - // A `-->` line comment - this.skipLineComment(3); - this.skipSpace(); - return this.nextToken(); - } - return this.finishOp(tt.incDec, 2); - } - if (next === 61) return this.finishOp(tt.assign, 2); - return this.finishOp(tt.plusMin, 1); -}; - -pp.readToken_lt_gt = function (code) { - // '<>' - var next = this.input.charCodeAt(this.pos + 1); - var size = 1; - if (next === code) { - size = code === 62 && this.input.charCodeAt(this.pos + 2) === 62 ? 3 : 2; - if (this.input.charCodeAt(this.pos + size) === 61) return this.finishOp(tt.assign, size + 1); - return this.finishOp(tt.bitShift, size); - } - if (next == 33 && code == 60 && this.input.charCodeAt(this.pos + 2) == 45 && this.input.charCodeAt(this.pos + 3) == 45) { - if (this.inModule) this.unexpected(); - // `<!--`, an XML-style comment that should be interpreted as a line comment - this.skipLineComment(4); - this.skipSpace(); - return this.nextToken(); - } - if (next === 61) size = this.input.charCodeAt(this.pos + 2) === 61 ? 3 : 2; - return this.finishOp(tt.relational, size); -}; - -pp.readToken_eq_excl = function (code) { - // '=!' - var next = this.input.charCodeAt(this.pos + 1); - if (next === 61) return this.finishOp(tt.equality, this.input.charCodeAt(this.pos + 2) === 61 ? 3 : 2); - if (code === 61 && next === 62 && this.options.ecmaVersion >= 6) { - // '=>' - this.pos += 2; - return this.finishToken(tt.arrow); - } - return this.finishOp(code === 61 ? tt.eq : tt.prefix, 1); -}; - -pp.getTokenFromCode = function (code) { - switch (code) { - // The interpretation of a dot depends on whether it is followed - // by a digit or another two dots. - case 46: - // '.' - return this.readToken_dot(); - - // Punctuation tokens. - case 40: - ++this.pos;return this.finishToken(tt.parenL); - case 41: - ++this.pos;return this.finishToken(tt.parenR); - case 59: - ++this.pos;return this.finishToken(tt.semi); - case 44: - ++this.pos;return this.finishToken(tt.comma); - case 91: - ++this.pos;return this.finishToken(tt.bracketL); - case 93: - ++this.pos;return this.finishToken(tt.bracketR); - case 123: - ++this.pos;return this.finishToken(tt.braceL); - case 125: - ++this.pos;return this.finishToken(tt.braceR); - case 58: - ++this.pos;return this.finishToken(tt.colon); - case 63: - ++this.pos;return this.finishToken(tt.question); - - case 96: - // '`' - if (this.options.ecmaVersion < 6) break; - ++this.pos; - return this.finishToken(tt.backQuote); - - case 48: - // '0' - var next = this.input.charCodeAt(this.pos + 1); - if (next === 120 || next === 88) return this.readRadixNumber(16); // '0x', '0X' - hex number - if (this.options.ecmaVersion >= 6) { - if (next === 111 || next === 79) return this.readRadixNumber(8); // '0o', '0O' - octal number - if (next === 98 || next === 66) return this.readRadixNumber(2); // '0b', '0B' - binary number - } - // Anything else beginning with a digit is an integer, octal - // number, or float. - case 49:case 50:case 51:case 52:case 53:case 54:case 55:case 56:case 57: - // 1-9 - return this.readNumber(false); - - // Quotes produce strings. - case 34:case 39: - // '"', "'" - return this.readString(code); - - // Operators are parsed inline in tiny state machines. '=' (61) is - // often referred to. `finishOp` simply skips the amount of - // characters it is given as second argument, and returns a token - // of the type given by its first argument. - - case 47: - // '/' - return this.readToken_slash(); - - case 37:case 42: - // '%*' - return this.readToken_mult_modulo(code); - - case 124:case 38: - // '|&' - return this.readToken_pipe_amp(code); - - case 94: - // '^' - return this.readToken_caret(); - - case 43:case 45: - // '+-' - return this.readToken_plus_min(code); - - case 60:case 62: - // '<>' - return this.readToken_lt_gt(code); - - case 61:case 33: - // '=!' - return this.readToken_eq_excl(code); - - case 126: - // '~' - return this.finishOp(tt.prefix, 1); - } - - this.raise(this.pos, "Unexpected character '" + codePointToString(code) + "'"); -}; - -pp.finishOp = function (type, size) { - var str = this.input.slice(this.pos, this.pos + size); - this.pos += size; - return this.finishToken(type, str); -}; - -var regexpUnicodeSupport = false; -try { - new RegExp("", "u");regexpUnicodeSupport = true; -} catch (e) {} - -// Parse a regular expression. Some context-awareness is necessary, -// since a '/' inside a '[]' set does not end the expression. - -pp.readRegexp = function () { - var escaped = undefined, - inClass = undefined, - start = this.pos; - for (;;) { - if (this.pos >= this.input.length) this.raise(start, "Unterminated regular expression"); - var ch = this.input.charAt(this.pos); - if (lineBreak.test(ch)) this.raise(start, "Unterminated regular expression"); - if (!escaped) { - if (ch === "[") inClass = true;else if (ch === "]" && inClass) inClass = false;else if (ch === "/" && !inClass) break; - escaped = ch === "\\"; - } else escaped = false; - ++this.pos; - } - var content = this.input.slice(start, this.pos); - ++this.pos; - // Need to use `readWord1` because '\uXXXX' sequences are allowed - // here (don't ask). - var mods = this.readWord1(); - var tmp = content; - if (mods) { - var validFlags = /^[gmsiy]*$/; - if (this.options.ecmaVersion >= 6) validFlags = /^[gmsiyu]*$/; - if (!validFlags.test(mods)) this.raise(start, "Invalid regular expression flag"); - if (mods.indexOf("u") >= 0 && !regexpUnicodeSupport) { - // Replace each astral symbol and every Unicode escape sequence that - // possibly represents an astral symbol or a paired surrogate with a - // single ASCII symbol to avoid throwing on regular expressions that - // are only valid in combination with the `/u` flag. - // Note: replacing with the ASCII symbol `x` might cause false - // negatives in unlikely scenarios. For example, `[\u{61}-b]` is a - // perfectly valid pattern that is equivalent to `[a-b]`, but it would - // be replaced by `[x-b]` which throws an error. - tmp = tmp.replace(/\\u([a-fA-F0-9]{4})|\\u\{([0-9a-fA-F]+)\}|[\uD800-\uDBFF][\uDC00-\uDFFF]/g, "x"); - } - } - // Detect invalid regular expressions. - var value = null; - // Rhino's regular expression parser is flaky and throws uncatchable exceptions, - // so don't do detection if we are running under Rhino - if (!isRhino) { - try { - new RegExp(tmp); - } catch (e) { - if (e instanceof SyntaxError) this.raise(start, "Error parsing regular expression: " + e.message); - this.raise(e); - } - // Get a regular expression object for this pattern-flag pair, or `null` in - // case the current environment doesn't support the flags it uses. - try { - value = new RegExp(content, mods); - } catch (err) {} - } - return this.finishToken(tt.regexp, { pattern: content, flags: mods, value: value }); -}; - -// Read an integer in the given radix. Return null if zero digits -// were read, the integer value otherwise. When `len` is given, this -// will return `null` unless the integer has exactly `len` digits. - -pp.readInt = function (radix, len) { - var start = this.pos, - total = 0; - for (var i = 0, e = len == null ? Infinity : len; i < e; ++i) { - var code = this.input.charCodeAt(this.pos), - val = undefined; - if (code >= 97) val = code - 97 + 10; // a - else if (code >= 65) val = code - 65 + 10; // A - else if (code >= 48 && code <= 57) val = code - 48; // 0-9 - else val = Infinity; - if (val >= radix) break; - ++this.pos; - total = total * radix + val; - } - if (this.pos === start || len != null && this.pos - start !== len) return null; - - return total; -}; - -pp.readRadixNumber = function (radix) { - this.pos += 2; // 0x - var val = this.readInt(radix); - if (val == null) this.raise(this.start + 2, "Expected number in radix " + radix); - if (isIdentifierStart(this.fullCharCodeAtPos())) this.raise(this.pos, "Identifier directly after number"); - return this.finishToken(tt.num, val); -}; - -// Read an integer, octal integer, or floating-point number. - -pp.readNumber = function (startsWithDot) { - var start = this.pos, - isFloat = false, - octal = this.input.charCodeAt(this.pos) === 48; - if (!startsWithDot && this.readInt(10) === null) this.raise(start, "Invalid number"); - if (this.input.charCodeAt(this.pos) === 46) { - ++this.pos; - this.readInt(10); - isFloat = true; - } - var next = this.input.charCodeAt(this.pos); - if (next === 69 || next === 101) { - // 'eE' - next = this.input.charCodeAt(++this.pos); - if (next === 43 || next === 45) ++this.pos; // '+-' - if (this.readInt(10) === null) this.raise(start, "Invalid number"); - isFloat = true; - } - if (isIdentifierStart(this.fullCharCodeAtPos())) this.raise(this.pos, "Identifier directly after number"); - - var str = this.input.slice(start, this.pos), - val = undefined; - if (isFloat) val = parseFloat(str);else if (!octal || str.length === 1) val = parseInt(str, 10);else if (/[89]/.test(str) || this.strict) this.raise(start, "Invalid number");else val = parseInt(str, 8); - return this.finishToken(tt.num, val); -}; - -// Read a string value, interpreting backslash-escapes. - -pp.readCodePoint = function () { - var ch = this.input.charCodeAt(this.pos), - code = undefined; - - if (ch === 123) { - if (this.options.ecmaVersion < 6) this.unexpected(); - ++this.pos; - code = this.readHexChar(this.input.indexOf("}", this.pos) - this.pos); - ++this.pos; - if (code > 1114111) this.unexpected(); - } else { - code = this.readHexChar(4); - } - return code; -}; - -function codePointToString(code) { - // UTF-16 Decoding - if (code <= 65535) { - return String.fromCharCode(code); - }return String.fromCharCode((code - 65536 >> 10) + 55296, (code - 65536 & 1023) + 56320); -} - -pp.readString = function (quote) { - var out = "", - chunkStart = ++this.pos; - for (;;) { - if (this.pos >= this.input.length) this.raise(this.start, "Unterminated string constant"); - var ch = this.input.charCodeAt(this.pos); - if (ch === quote) break; - if (ch === 92) { - // '\' - out += this.input.slice(chunkStart, this.pos); - out += this.readEscapedChar(); - chunkStart = this.pos; - } else { - if (isNewLine(ch)) this.raise(this.start, "Unterminated string constant"); - ++this.pos; - } - } - out += this.input.slice(chunkStart, this.pos++); - return this.finishToken(tt.string, out); -}; - -// Reads template string tokens. - -pp.readTmplToken = function () { - var out = "", - chunkStart = this.pos; - for (;;) { - if (this.pos >= this.input.length) this.raise(this.start, "Unterminated template"); - var ch = this.input.charCodeAt(this.pos); - if (ch === 96 || ch === 36 && this.input.charCodeAt(this.pos + 1) === 123) { - // '`', '${' - if (this.pos === this.start && this.type === tt.template) { - if (ch === 36) { - this.pos += 2; - return this.finishToken(tt.dollarBraceL); - } else { - ++this.pos; - return this.finishToken(tt.backQuote); - } - } - out += this.input.slice(chunkStart, this.pos); - return this.finishToken(tt.template, out); - } - if (ch === 92) { - // '\' - out += this.input.slice(chunkStart, this.pos); - out += this.readEscapedChar(); - chunkStart = this.pos; - } else if (isNewLine(ch)) { - out += this.input.slice(chunkStart, this.pos); - ++this.pos; - if (ch === 13 && this.input.charCodeAt(this.pos) === 10) { - ++this.pos; - out += "\n"; - } else { - out += String.fromCharCode(ch); - } - if (this.options.locations) { - ++this.curLine; - this.lineStart = this.pos; - } - chunkStart = this.pos; - } else { - ++this.pos; - } - } -}; - -// Used to read escaped characters - -pp.readEscapedChar = function () { - var ch = this.input.charCodeAt(++this.pos); - var octal = /^[0-7]+/.exec(this.input.slice(this.pos, this.pos + 3)); - if (octal) octal = octal[0]; - while (octal && parseInt(octal, 8) > 255) octal = octal.slice(0, -1); - if (octal === "0") octal = null; - ++this.pos; - if (octal) { - if (this.strict) this.raise(this.pos - 2, "Octal literal in strict mode"); - this.pos += octal.length - 1; - return String.fromCharCode(parseInt(octal, 8)); - } else { - switch (ch) { - case 110: - return "\n"; // 'n' -> '\n' - case 114: - return "\r"; // 'r' -> '\r' - case 120: - return String.fromCharCode(this.readHexChar(2)); // 'x' - case 117: - return codePointToString(this.readCodePoint()); // 'u' - case 116: - return "\t"; // 't' -> '\t' - case 98: - return "\b"; // 'b' -> '\b' - case 118: - return "\u000b"; // 'v' -> '\u000b' - case 102: - return "\f"; // 'f' -> '\f' - case 48: - return "\u0000"; // 0 -> '\0' - case 13: - if (this.input.charCodeAt(this.pos) === 10) ++this.pos; // '\r\n' - case 10: - // ' \n' - if (this.options.locations) { - this.lineStart = this.pos;++this.curLine; - } - return ""; - default: - return String.fromCharCode(ch); - } - } -}; - -// Used to read character escape sequences ('\x', '\u', '\U'). - -pp.readHexChar = function (len) { - var n = this.readInt(16, len); - if (n === null) this.raise(this.start, "Bad character escape sequence"); - return n; -}; - -// Used to signal to callers of `readWord1` whether the word -// contained any escape sequences. This is needed because words with -// escape sequences must not be interpreted as keywords. - -var containsEsc; - -// Read an identifier, and return it as a string. Sets `containsEsc` -// to whether the word contained a '\u' escape. -// -// Incrementally adds only escaped chars, adding other chunks as-is -// as a micro-optimization. - -pp.readWord1 = function () { - containsEsc = false; - var word = "", - first = true, - chunkStart = this.pos; - var astral = this.options.ecmaVersion >= 6; - while (this.pos < this.input.length) { - var ch = this.fullCharCodeAtPos(); - if (isIdentifierChar(ch, astral)) { - this.pos += ch <= 65535 ? 1 : 2; - } else if (ch === 92) { - // "\" - containsEsc = true; - word += this.input.slice(chunkStart, this.pos); - var escStart = this.pos; - if (this.input.charCodeAt(++this.pos) != 117) // "u" - this.raise(this.pos, "Expecting Unicode escape sequence \\uXXXX"); - ++this.pos; - var esc = this.readCodePoint(); - if (!(first ? isIdentifierStart : isIdentifierChar)(esc, astral)) this.raise(escStart, "Invalid Unicode escape"); - word += codePointToString(esc); - chunkStart = this.pos; - } else { - break; - } - first = false; - } - return word + this.input.slice(chunkStart, this.pos); -}; - -// Read an identifier or keyword token. Will check for reserved -// words when necessary. - -pp.readWord = function () { - var word = this.readWord1(); - var type = tt.name; - if ((this.options.ecmaVersion >= 6 || !containsEsc) && this.isKeyword(word)) type = keywordTypes[word]; - return this.finishToken(type, word); -}; - -},{"./identifier":7,"./location":8,"./state":13,"./tokentype":17,"./whitespace":19}],17:[function(_dereq_,module,exports){ -"use strict"; - -var _classCallCheck = function (instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }; - -exports.__esModule = true; -// ## Token types - -// The assignment of fine-grained, information-carrying type objects -// allows the tokenizer to store the information it has about a -// token in a way that is very cheap for the parser to look up. - -// All token type variables start with an underscore, to make them -// easy to recognize. - -// The `beforeExpr` property is used to disambiguate between regular -// expressions and divisions. It is set on all token types that can -// be followed by an expression (thus, a slash after them would be a -// regular expression). -// -// `isLoop` marks a keyword as starting a loop, which is important -// to know when parsing a label, in order to allow or disallow -// continue jumps to that label. - -var TokenType = exports.TokenType = function TokenType(label) { - var conf = arguments[1] === undefined ? {} : arguments[1]; - - _classCallCheck(this, TokenType); - - this.label = label; - this.keyword = conf.keyword; - this.beforeExpr = !!conf.beforeExpr; - this.startsExpr = !!conf.startsExpr; - this.isLoop = !!conf.isLoop; - this.isAssign = !!conf.isAssign; - this.prefix = !!conf.prefix; - this.postfix = !!conf.postfix; - this.binop = conf.binop || null; - this.updateContext = null; -}; - -function binop(name, prec) { - return new TokenType(name, { beforeExpr: true, binop: prec }); -} -var beforeExpr = { beforeExpr: true }, - startsExpr = { startsExpr: true }; - -var types = { - num: new TokenType("num", startsExpr), - regexp: new TokenType("regexp", startsExpr), - string: new TokenType("string", startsExpr), - name: new TokenType("name", startsExpr), - eof: new TokenType("eof"), - - // Punctuation token types. - bracketL: new TokenType("[", { beforeExpr: true, startsExpr: true }), - bracketR: new TokenType("]"), - braceL: new TokenType("{", { beforeExpr: true, startsExpr: true }), - braceR: new TokenType("}"), - parenL: new TokenType("(", { beforeExpr: true, startsExpr: true }), - parenR: new TokenType(")"), - comma: new TokenType(",", beforeExpr), - semi: new TokenType(";", beforeExpr), - colon: new TokenType(":", beforeExpr), - dot: new TokenType("."), - question: new TokenType("?", beforeExpr), - arrow: new TokenType("=>", beforeExpr), - template: new TokenType("template"), - ellipsis: new TokenType("...", beforeExpr), - backQuote: new TokenType("`", startsExpr), - dollarBraceL: new TokenType("${", { beforeExpr: true, startsExpr: true }), - - // Operators. These carry several kinds of properties to help the - // parser use them properly (the presence of these properties is - // what categorizes them as operators). - // - // `binop`, when present, specifies that this operator is a binary - // operator, and will refer to its precedence. - // - // `prefix` and `postfix` mark the operator as a prefix or postfix - // unary operator. - // - // `isAssign` marks all of `=`, `+=`, `-=` etcetera, which act as - // binary operators with a very low precedence, that should result - // in AssignmentExpression nodes. - - eq: new TokenType("=", { beforeExpr: true, isAssign: true }), - assign: new TokenType("_=", { beforeExpr: true, isAssign: true }), - incDec: new TokenType("++/--", { prefix: true, postfix: true, startsExpr: true }), - prefix: new TokenType("prefix", { beforeExpr: true, prefix: true, startsExpr: true }), - logicalOR: binop("||", 1), - logicalAND: binop("&&", 2), - bitwiseOR: binop("|", 3), - bitwiseXOR: binop("^", 4), - bitwiseAND: binop("&", 5), - equality: binop("==/!=", 6), - relational: binop("</>", 7), - bitShift: binop("<</>>", 8), - plusMin: new TokenType("+/-", { beforeExpr: true, binop: 9, prefix: true, startsExpr: true }), - modulo: binop("%", 10), - star: binop("*", 10), - slash: binop("/", 10) -}; - -exports.types = types; -// Map keyword names to token types. - -var keywords = {}; - -exports.keywords = keywords; -// Succinct definitions of keyword token types -function kw(name) { - var options = arguments[1] === undefined ? {} : arguments[1]; - - options.keyword = name; - keywords[name] = types["_" + name] = new TokenType(name, options); -} - -kw("break"); -kw("case", beforeExpr); -kw("catch"); -kw("continue"); -kw("debugger"); -kw("default"); -kw("do", { isLoop: true }); -kw("else", beforeExpr); -kw("finally"); -kw("for", { isLoop: true }); -kw("function", startsExpr); -kw("if"); -kw("return", beforeExpr); -kw("switch"); -kw("throw", beforeExpr); -kw("try"); -kw("var"); -kw("let"); -kw("const"); -kw("while", { isLoop: true }); -kw("with"); -kw("new", { beforeExpr: true, startsExpr: true }); -kw("this", startsExpr); -kw("super", startsExpr); -kw("class"); -kw("extends", beforeExpr); -kw("export"); -kw("import"); -kw("yield", { beforeExpr: true, startsExpr: true }); -kw("null", startsExpr); -kw("true", startsExpr); -kw("false", startsExpr); -kw("in", { beforeExpr: true, binop: 7 }); -kw("instanceof", { beforeExpr: true, binop: 7 }); -kw("typeof", { beforeExpr: true, prefix: true, startsExpr: true }); -kw("void", { beforeExpr: true, prefix: true, startsExpr: true }); -kw("delete", { beforeExpr: true, prefix: true, startsExpr: true }); - -},{}],18:[function(_dereq_,module,exports){ -"use strict"; - -exports.isArray = isArray; - -// Checks if an object has a property. - -exports.has = has; -exports.__esModule = true; - -function isArray(obj) { - return Object.prototype.toString.call(obj) === "[object Array]"; -} - -function has(obj, propName) { - return Object.prototype.hasOwnProperty.call(obj, propName); -} - -},{}],19:[function(_dereq_,module,exports){ -"use strict"; - -exports.isNewLine = isNewLine; -exports.__esModule = true; -// Matches a whole line break (where CRLF is considered a single -// line break). Used to count lines. - -var lineBreak = /\r\n?|\n|\u2028|\u2029/; -exports.lineBreak = lineBreak; -var lineBreakG = new RegExp(lineBreak.source, "g"); - -exports.lineBreakG = lineBreakG; - -function isNewLine(code) { - return code === 10 || code === 13 || code === 8232 || code == 8233; -} - -var nonASCIIwhitespace = /[\u1680\u180e\u2000-\u200a\u202f\u205f\u3000\ufeff]/; -exports.nonASCIIwhitespace = nonASCIIwhitespace; - -},{}]},{},[1])(1) -});
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