From b005fdf0290ebfaa12b636c37d627dd69d77b15f Mon Sep 17 00:00:00 2001 From: Yehonathan Sharvit Date: Thu, 8 Dec 2016 21:27:53 +0200 Subject: [PATCH] Create js_eval_sanitizer.js --- docs/repo/js/js_eval_sanitizer.js | 14347 ++++++++++++++++++++++++++++ 1 file changed, 14347 insertions(+) create mode 100644 docs/repo/js/js_eval_sanitizer.js diff --git a/docs/repo/js/js_eval_sanitizer.js b/docs/repo/js/js_eval_sanitizer.js new file mode 100644 index 00000000..cf3f1cf4 --- /dev/null +++ b/docs/repo/js/js_eval_sanitizer.js @@ -0,0 +1,14347 @@ +//https://github.com/cristianstaicu/eval-sanitizer + +(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.sanitiz = 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 0) { + ary.splice(i - 1, 2); + i -= 2; + } + } + } + } + + function normalize(name, baseName) { + var baseParts; + + //Adjust any relative paths. + if (name && name.charAt(0) === '.') { + //If have a base name, try to normalize against it, + //otherwise, assume it is a top-level require that will + //be relative to baseUrl in the end. + if (baseName) { + baseParts = baseName.split('/'); + baseParts = baseParts.slice(0, baseParts.length - 1); + baseParts = baseParts.concat(name.split('/')); + trimDots(baseParts); + name = baseParts.join('/'); + } + } + + return name; + } + + /** + * Create the normalize() function passed to a loader plugin's + * normalize method. + */ + function makeNormalize(relName) { + return function (name) { + return normalize(name, relName); + }; + } + + function makeLoad(id) { + function load(value) { + loaderCache[id] = value; + } + + load.fromText = function (id, text) { + //This one is difficult because the text can/probably uses + //define, and any relative paths and requires should be relative + //to that id was it would be found on disk. But this would require + //bootstrapping a module/require fairly deeply from node core. + //Not sure how best to go about that yet. + throw new Error('amdefine does not implement load.fromText'); + }; + + return load; + } + + makeRequire = function (systemRequire, exports, module, relId) { + function amdRequire(deps, callback) { + if (typeof deps === 'string') { + //Synchronous, single module require('') + return stringRequire(systemRequire, exports, module, deps, relId); + } else { + //Array of dependencies with a callback. + + //Convert the dependencies to modules. + deps = deps.map(function (depName) { + return stringRequire(systemRequire, exports, module, depName, relId); + }); + + //Wait for next tick to call back the require call. + if (callback) { + process.nextTick(function () { + callback.apply(null, deps); + }); + } + } + } + + amdRequire.toUrl = function (filePath) { + if (filePath.indexOf('.') === 0) { + return normalize(filePath, path.dirname(module.filename)); + } else { + return filePath; + } + }; + + return amdRequire; + }; + + //Favor explicit value, passed in if the module wants to support Node 0.4. + requireFn = requireFn || function req() { + return module.require.apply(module, arguments); + }; + + function runFactory(id, deps, factory) { + var r, e, m, result; + + if (id) { + e = loaderCache[id] = {}; + m = { + id: id, + uri: __filename, + exports: e + }; + r = makeRequire(requireFn, e, m, id); + } else { + //Only support one define call per file + if (alreadyCalled) { + throw new Error('amdefine with no module ID cannot be called more than once per file.'); + } + alreadyCalled = true; + + //Use the real variables from node + //Use module.exports for exports, since + //the exports in here is amdefine exports. + e = module.exports; + m = module; + r = makeRequire(requireFn, e, m, module.id); + } + + //If there are dependencies, they are strings, so need + //to convert them to dependency values. + if (deps) { + deps = deps.map(function (depName) { + return r(depName); + }); + } + + //Call the factory with the right dependencies. + if (typeof factory === 'function') { + result = factory.apply(m.exports, deps); + } else { + result = factory; + } + + if (result !== undefined) { + m.exports = result; + if (id) { + loaderCache[id] = m.exports; + } + } + } + + stringRequire = function (systemRequire, exports, module, id, relId) { + //Split the ID by a ! so that + var index = id.indexOf('!'), + originalId = id, + prefix, plugin; + + if (index === -1) { + id = normalize(id, relId); + + //Straight module lookup. If it is one of the special dependencies, + //deal with it, otherwise, delegate to node. + if (id === 'require') { + return makeRequire(systemRequire, exports, module, relId); + } else if (id === 'exports') { + return exports; + } else if (id === 'module') { + return module; + } else if (loaderCache.hasOwnProperty(id)) { + return loaderCache[id]; + } else if (defineCache[id]) { + runFactory.apply(null, defineCache[id]); + return loaderCache[id]; + } else { + if(systemRequire) { + return systemRequire(originalId); + } else { + throw new Error('No module with ID: ' + id); + } + } + } else { + //There is a plugin in play. + prefix = id.substring(0, index); + id = id.substring(index + 1, id.length); + + plugin = stringRequire(systemRequire, exports, module, prefix, relId); + + if (plugin.normalize) { + id = plugin.normalize(id, makeNormalize(relId)); + } else { + //Normalize the ID normally. + id = normalize(id, relId); + } + + if (loaderCache[id]) { + return loaderCache[id]; + } else { + plugin.load(id, makeRequire(systemRequire, exports, module, relId), makeLoad(id), {}); + + return loaderCache[id]; + } + } + }; + + //Create a define function specific to the module asking for amdefine. + function define(id, deps, factory) { + if (Array.isArray(id)) { + factory = deps; + deps = id; + id = undefined; + } else if (typeof id !== 'string') { + factory = id; + id = deps = undefined; + } + + if (deps && !Array.isArray(deps)) { + factory = deps; + deps = undefined; + } + + if (!deps) { + deps = ['require', 'exports', 'module']; + } + + //Set up properties for this module. If an ID, then use + //internal cache. If no ID, then use the external variables + //for this node module. + if (id) { + //Put the module in deep freeze until there is a + //require call for it. + defineCache[id] = [id, deps, factory]; + } else { + runFactory(id, deps, factory); + } + } + + //define.require, which has access to all the values in the + //cache. Useful for AMD modules that all have IDs in the file, + //but need to finally export a value to node based on one of those + //IDs. + define.require = function (id) { + if (loaderCache[id]) { + return loaderCache[id]; + } + + if (defineCache[id]) { + runFactory.apply(null, defineCache[id]); + return loaderCache[id]; + } + }; + + define.amd = {}; + + return define; +} + +module.exports = amdefine; + +}).call(this,require('_process'),"/../amdefine/amdefine.js") +},{"_process":64,"path":63}],2:[function(require,module,exports){ +function traverse(root, options) { + "use strict"; + + options = options || {}; + var pre = options.pre; + var post = options.post; + var skipProperty = options.skipProperty; + + function visit(node, parent, prop, idx) { + if (!node || typeof node.type !== "string") { + return; + } + + var res = undefined; + if (pre) { + res = pre(node, parent, prop, idx); + } + + if (res !== false) { + for (var prop in node) { + if (skipProperty ? skipProperty(prop, node) : prop[0] === "$") { + continue; + } + + var child = node[prop]; + + if (Array.isArray(child)) { + for (var i = 0; i < child.length; i++) { + visit(child[i], node, prop, i); + } + } else { + visit(child, node, prop); + } + } + } + + if (post) { + post(node, parent, prop, idx); + } + } + + visit(root, null); +}; + +if (typeof module !== "undefined" && typeof module.exports !== "undefined") { + module.exports = traverse; +} + +},{}],3:[function(require,module,exports){ +'use strict'; + +var assign = require('es5-ext/object/assign') + , normalizeOpts = require('es5-ext/object/normalize-options') + , isCallable = require('es5-ext/object/is-callable') + , contains = require('es5-ext/string/#/contains') + + , d; + +d = module.exports = function (dscr, value/*, options*/) { + var c, e, w, options, desc; + if ((arguments.length < 2) || (typeof dscr !== 'string')) { + options = value; + value = dscr; + dscr = null; + } else { + options = arguments[2]; + } + if (dscr == null) { + c = w = true; + e = false; + } else { + c = contains.call(dscr, 'c'); + e = contains.call(dscr, 'e'); + w = contains.call(dscr, 'w'); + } + + desc = { value: value, configurable: c, enumerable: e, writable: w }; + return !options ? desc : assign(normalizeOpts(options), desc); +}; + +d.gs = function (dscr, get, set/*, options*/) { + var c, e, options, desc; + if (typeof dscr !== 'string') { + options = set; + set = get; + get = dscr; + dscr = null; + } else { + options = arguments[3]; + } + if (get == null) { + get = undefined; + } else if (!isCallable(get)) { + options = get; + get = set = undefined; + } else if (set == null) { + set = undefined; + } else if (!isCallable(set)) { + options = set; + set = undefined; + } + if (dscr == null) { + c = true; + e = false; + } else { + c = contains.call(dscr, 'c'); + e = contains.call(dscr, 'e'); + } + + desc = { get: get, set: set, configurable: c, enumerable: e }; + return !options ? desc : assign(normalizeOpts(options), desc); +}; + +},{"es5-ext/object/assign":15,"es5-ext/object/is-callable":18,"es5-ext/object/normalize-options":22,"es5-ext/string/#/contains":26}],4:[function(require,module,exports){ +'use strict'; + +module.exports = require('./is-implemented')() + ? Array.from + : require('./shim'); + +},{"./is-implemented":5,"./shim":6}],5:[function(require,module,exports){ +'use strict'; + +module.exports = function () { + var from = Array.from, arr, result; + if (typeof from !== 'function') return false; + arr = ['raz', 'dwa']; + result = from(arr); + return Boolean(result && (result !== arr) && (result[1] === 'dwa')); +}; + +},{}],6:[function(require,module,exports){ +'use strict'; + +var iteratorSymbol = require('es6-symbol').iterator + , isArguments = require('../../function/is-arguments') + , isFunction = require('../../function/is-function') + , toPosInt = require('../../number/to-pos-integer') + , callable = require('../../object/valid-callable') + , validValue = require('../../object/valid-value') + , isString = require('../../string/is-string') + + , isArray = Array.isArray, call = Function.prototype.call + , desc = { configurable: true, enumerable: true, writable: true, value: null } + , defineProperty = Object.defineProperty; + +module.exports = function (arrayLike/*, mapFn, thisArg*/) { + var mapFn = arguments[1], thisArg = arguments[2], Constructor, i, j, arr, l, code, iterator + , result, getIterator, value; + + arrayLike = Object(validValue(arrayLike)); + + if (mapFn != null) callable(mapFn); + if (!this || (this === Array) || !isFunction(this)) { + // Result: Plain array + if (!mapFn) { + if (isArguments(arrayLike)) { + // Source: Arguments + l = arrayLike.length; + if (l !== 1) return Array.apply(null, arrayLike); + arr = new Array(1); + arr[0] = arrayLike[0]; + return arr; + } + if (isArray(arrayLike)) { + // Source: Array + arr = new Array(l = arrayLike.length); + for (i = 0; i < l; ++i) arr[i] = arrayLike[i]; + return arr; + } + } + arr = []; + } else { + // Result: Non plain array + Constructor = this; + } + + if (!isArray(arrayLike)) { + if ((getIterator = arrayLike[iteratorSymbol]) !== undefined) { + // Source: Iterator + iterator = callable(getIterator).call(arrayLike); + if (Constructor) arr = new Constructor(); + result = iterator.next(); + i = 0; + while (!result.done) { + value = mapFn ? call.call(mapFn, thisArg, result.value, i) : result.value; + if (!Constructor) { + arr[i] = value; + } else { + desc.value = value; + defineProperty(arr, i, desc); + } + result = iterator.next(); + ++i; + } + l = i; + } else if (isString(arrayLike)) { + // Source: String + l = arrayLike.length; + if (Constructor) arr = new Constructor(); + for (i = 0, j = 0; i < l; ++i) { + value = arrayLike[i]; + if ((i + 1) < l) { + code = value.charCodeAt(0); + if ((code >= 0xD800) && (code <= 0xDBFF)) value += arrayLike[++i]; + } + value = mapFn ? call.call(mapFn, thisArg, value, j) : value; + if (!Constructor) { + arr[j] = value; + } else { + desc.value = value; + defineProperty(arr, j, desc); + } + ++j; + } + l = j; + } + } + if (l === undefined) { + // Source: array or array-like + l = toPosInt(arrayLike.length); + if (Constructor) arr = new Constructor(l); + for (i = 0; i < l; ++i) { + value = mapFn ? call.call(mapFn, thisArg, arrayLike[i], i) : arrayLike[i]; + if (!Constructor) { + arr[i] = value; + } else { + desc.value = value; + defineProperty(arr, i, desc); + } + } + } + if (Constructor) { + desc.value = null; + arr.length = l; + } + return arr; +}; + +},{"../../function/is-arguments":7,"../../function/is-function":8,"../../number/to-pos-integer":14,"../../object/valid-callable":24,"../../object/valid-value":25,"../../string/is-string":29,"es6-symbol":30}],7:[function(require,module,exports){ +'use strict'; + +var toString = Object.prototype.toString + + , id = toString.call((function () { return arguments; }())); + +module.exports = function (x) { return (toString.call(x) === id); }; + +},{}],8:[function(require,module,exports){ +'use strict'; + +var toString = Object.prototype.toString + + , id = toString.call(require('./noop')); + +module.exports = function (f) { + return (typeof f === "function") && (toString.call(f) === id); +}; + +},{"./noop":9}],9:[function(require,module,exports){ +'use strict'; + +module.exports = function () {}; + +},{}],10:[function(require,module,exports){ +'use strict'; + +module.exports = require('./is-implemented')() + ? Math.sign + : require('./shim'); + +},{"./is-implemented":11,"./shim":12}],11:[function(require,module,exports){ +'use strict'; + +module.exports = function () { + var sign = Math.sign; + if (typeof sign !== 'function') return false; + return ((sign(10) === 1) && (sign(-20) === -1)); +}; + +},{}],12:[function(require,module,exports){ +'use strict'; + +module.exports = function (value) { + value = Number(value); + if (isNaN(value) || (value === 0)) return value; + return (value > 0) ? 1 : -1; +}; + +},{}],13:[function(require,module,exports){ +'use strict'; + +var sign = require('../math/sign') + + , abs = Math.abs, floor = Math.floor; + +module.exports = function (value) { + if (isNaN(value)) return 0; + value = Number(value); + if ((value === 0) || !isFinite(value)) return value; + return sign(value) * floor(abs(value)); +}; + +},{"../math/sign":10}],14:[function(require,module,exports){ +'use strict'; + +var toInteger = require('./to-integer') + + , max = Math.max; + +module.exports = function (value) { return max(0, toInteger(value)); }; + +},{"./to-integer":13}],15:[function(require,module,exports){ +'use strict'; + +module.exports = require('./is-implemented')() + ? Object.assign + : require('./shim'); + +},{"./is-implemented":16,"./shim":17}],16:[function(require,module,exports){ +'use strict'; + +module.exports = function () { + var assign = Object.assign, obj; + if (typeof assign !== 'function') return false; + obj = { foo: 'raz' }; + assign(obj, { bar: 'dwa' }, { trzy: 'trzy' }); + return (obj.foo + obj.bar + obj.trzy) === 'razdwatrzy'; +}; + +},{}],17:[function(require,module,exports){ +'use strict'; + +var keys = require('../keys') + , value = require('../valid-value') + + , max = Math.max; + +module.exports = function (dest, src/*, …srcn*/) { + var error, i, l = max(arguments.length, 2), assign; + dest = Object(value(dest)); + assign = function (key) { + try { dest[key] = src[key]; } catch (e) { + if (!error) error = e; + } + }; + for (i = 1; i < l; ++i) { + src = arguments[i]; + keys(src).forEach(assign); + } + if (error !== undefined) throw error; + return dest; +}; + +},{"../keys":19,"../valid-value":25}],18:[function(require,module,exports){ +// Deprecated + +'use strict'; + +module.exports = function (obj) { return typeof obj === 'function'; }; + +},{}],19:[function(require,module,exports){ +'use strict'; + +module.exports = require('./is-implemented')() + ? Object.keys + : require('./shim'); + +},{"./is-implemented":20,"./shim":21}],20:[function(require,module,exports){ +'use strict'; + +module.exports = function () { + try { + Object.keys('primitive'); + return true; + } catch (e) { return false; } +}; + +},{}],21:[function(require,module,exports){ +'use strict'; + +var keys = Object.keys; + +module.exports = function (object) { + return keys(object == null ? object : Object(object)); +}; + +},{}],22:[function(require,module,exports){ +'use strict'; + +var forEach = Array.prototype.forEach, create = Object.create; + +var process = function (src, obj) { + var key; + for (key in src) obj[key] = src[key]; +}; + +module.exports = function (options/*, …options*/) { + var result = create(null); + forEach.call(arguments, function (options) { + if (options == null) return; + process(Object(options), result); + }); + return result; +}; + +},{}],23:[function(require,module,exports){ +'use strict'; + +var forEach = Array.prototype.forEach, create = Object.create; + +module.exports = function (arg/*, …args*/) { + var set = create(null); + forEach.call(arguments, function (name) { set[name] = true; }); + return set; +}; + +},{}],24:[function(require,module,exports){ +'use strict'; + +module.exports = function (fn) { + if (typeof fn !== 'function') throw new TypeError(fn + " is not a function"); + return fn; +}; + +},{}],25:[function(require,module,exports){ +'use strict'; + +module.exports = function (value) { + if (value == null) throw new TypeError("Cannot use null or undefined"); + return value; +}; + +},{}],26:[function(require,module,exports){ +'use strict'; + +module.exports = require('./is-implemented')() + ? String.prototype.contains + : require('./shim'); + +},{"./is-implemented":27,"./shim":28}],27:[function(require,module,exports){ +'use strict'; + +var str = 'razdwatrzy'; + +module.exports = function () { + if (typeof str.contains !== 'function') return false; + return ((str.contains('dwa') === true) && (str.contains('foo') === false)); +}; + +},{}],28:[function(require,module,exports){ +'use strict'; + +var indexOf = String.prototype.indexOf; + +module.exports = function (searchString/*, position*/) { + return indexOf.call(this, searchString, arguments[1]) > -1; +}; + +},{}],29:[function(require,module,exports){ +'use strict'; + +var toString = Object.prototype.toString + + , id = toString.call(''); + +module.exports = function (x) { + return (typeof x === 'string') || (x && (typeof x === 'object') && + ((x instanceof String) || (toString.call(x) === id))) || false; +}; + +},{}],30:[function(require,module,exports){ +'use strict'; + +module.exports = require('./is-implemented')() ? Symbol : require('./polyfill'); + +},{"./is-implemented":31,"./polyfill":33}],31:[function(require,module,exports){ +'use strict'; + +var validTypes = { object: true, symbol: true }; + +module.exports = function () { + var symbol; + if (typeof Symbol !== 'function') return false; + symbol = Symbol('test symbol'); + try { String(symbol); } catch (e) { return false; } + + // Return 'true' also for polyfills + if (!validTypes[typeof Symbol.iterator]) return false; + if (!validTypes[typeof Symbol.toPrimitive]) return false; + if (!validTypes[typeof Symbol.toStringTag]) return false; + + return true; +}; + +},{}],32:[function(require,module,exports){ +'use strict'; + +module.exports = function (x) { + if (!x) return false; + if (typeof x === 'symbol') return true; + if (!x.constructor) return false; + if (x.constructor.name !== 'Symbol') return false; + return (x[x.constructor.toStringTag] === 'Symbol'); +}; + +},{}],33:[function(require,module,exports){ +// ES2015 Symbol polyfill for environments that do not support it (or partially support it) + +'use strict'; + +var d = require('d') + , validateSymbol = require('./validate-symbol') + + , create = Object.create, defineProperties = Object.defineProperties + , defineProperty = Object.defineProperty, objPrototype = Object.prototype + , NativeSymbol, SymbolPolyfill, HiddenSymbol, globalSymbols = create(null) + , isNativeSafe; + +if (typeof Symbol === 'function') { + NativeSymbol = Symbol; + try { + String(NativeSymbol()); + isNativeSafe = true; + } catch (ignore) {} +} + +var generateName = (function () { + var created = create(null); + return function (desc) { + var postfix = 0, name, ie11BugWorkaround; + while (created[desc + (postfix || '')]) ++postfix; + desc += (postfix || ''); + created[desc] = true; + name = '@@' + desc; + defineProperty(objPrototype, name, d.gs(null, function (value) { + // For IE11 issue see: + // https://connect.microsoft.com/IE/feedbackdetail/view/1928508/ + // ie11-broken-getters-on-dom-objects + // https://github.com/medikoo/es6-symbol/issues/12 + if (ie11BugWorkaround) return; + ie11BugWorkaround = true; + defineProperty(this, name, d(value)); + ie11BugWorkaround = false; + })); + return name; + }; +}()); + +// Internal constructor (not one exposed) for creating Symbol instances. +// This one is used to ensure that `someSymbol instanceof Symbol` always return false +HiddenSymbol = function Symbol(description) { + if (this instanceof HiddenSymbol) throw new TypeError('TypeError: Symbol is not a constructor'); + return SymbolPolyfill(description); +}; + +// Exposed `Symbol` constructor +// (returns instances of HiddenSymbol) +module.exports = SymbolPolyfill = function Symbol(description) { + var symbol; + if (this instanceof Symbol) throw new TypeError('TypeError: Symbol is not a constructor'); + if (isNativeSafe) return NativeSymbol(description); + symbol = create(HiddenSymbol.prototype); + description = (description === undefined ? '' : String(description)); + return defineProperties(symbol, { + __description__: d('', description), + __name__: d('', generateName(description)) + }); +}; +defineProperties(SymbolPolyfill, { + for: d(function (key) { + if (globalSymbols[key]) return globalSymbols[key]; + return (globalSymbols[key] = SymbolPolyfill(String(key))); + }), + keyFor: d(function (s) { + var key; + validateSymbol(s); + for (key in globalSymbols) if (globalSymbols[key] === s) return key; + }), + + // If there's native implementation of given symbol, let's fallback to it + // to ensure proper interoperability with other native functions e.g. Array.from + hasInstance: d('', (NativeSymbol && NativeSymbol.hasInstance) || SymbolPolyfill('hasInstance')), + isConcatSpreadable: d('', (NativeSymbol && NativeSymbol.isConcatSpreadable) || + SymbolPolyfill('isConcatSpreadable')), + iterator: d('', (NativeSymbol && NativeSymbol.iterator) || SymbolPolyfill('iterator')), + match: d('', (NativeSymbol && NativeSymbol.match) || SymbolPolyfill('match')), + replace: d('', (NativeSymbol && NativeSymbol.replace) || SymbolPolyfill('replace')), + search: d('', (NativeSymbol && NativeSymbol.search) || SymbolPolyfill('search')), + species: d('', (NativeSymbol && NativeSymbol.species) || SymbolPolyfill('species')), + split: d('', (NativeSymbol && NativeSymbol.split) || SymbolPolyfill('split')), + toPrimitive: d('', (NativeSymbol && NativeSymbol.toPrimitive) || SymbolPolyfill('toPrimitive')), + toStringTag: d('', (NativeSymbol && NativeSymbol.toStringTag) || SymbolPolyfill('toStringTag')), + unscopables: d('', (NativeSymbol && NativeSymbol.unscopables) || SymbolPolyfill('unscopables')) +}); + +// Internal tweaks for real symbol producer +defineProperties(HiddenSymbol.prototype, { + constructor: d(SymbolPolyfill), + toString: d('', function () { return this.__name__; }) +}); + +// Proper implementation of methods exposed on Symbol.prototype +// They won't be accessible on produced symbol instances as they derive from HiddenSymbol.prototype +defineProperties(SymbolPolyfill.prototype, { + toString: d(function () { return 'Symbol (' + validateSymbol(this).__description__ + ')'; }), + valueOf: d(function () { return validateSymbol(this); }) +}); +defineProperty(SymbolPolyfill.prototype, SymbolPolyfill.toPrimitive, d('', function () { + var symbol = validateSymbol(this); + if (typeof symbol === 'symbol') return symbol; + return symbol.toString(); +})); +defineProperty(SymbolPolyfill.prototype, SymbolPolyfill.toStringTag, d('c', 'Symbol')); + +// Proper implementaton of toPrimitive and toStringTag for returned symbol instances +defineProperty(HiddenSymbol.prototype, SymbolPolyfill.toStringTag, + d('c', SymbolPolyfill.prototype[SymbolPolyfill.toStringTag])); + +// Note: It's important to define `toPrimitive` as last one, as some implementations +// implement `toPrimitive` natively without implementing `toStringTag` (or other specified symbols) +// And that may invoke error in definition flow: +// See: https://github.com/medikoo/es6-symbol/issues/13#issuecomment-164146149 +defineProperty(HiddenSymbol.prototype, SymbolPolyfill.toPrimitive, + d('c', SymbolPolyfill.prototype[SymbolPolyfill.toPrimitive])); + +},{"./validate-symbol":34,"d":3}],34:[function(require,module,exports){ +'use strict'; + +var isSymbol = require('./is-symbol'); + +module.exports = function (value) { + if (!isSymbol(value)) throw new TypeError(value + " is not a symbol"); + return value; +}; + +},{"./is-symbol":32}],35:[function(require,module,exports){ +'use strict'; + +var esniff = require('esniff') + + , i, current, literals, substitutions, sOut, sEscape, sAhead, sIn, sInEscape, template; + +sOut = function (char) { + if (char === '\\') return sEscape; + if (char === '$') return sAhead; + current += char; + return sOut; +}; +sEscape = function (char) { + if ((char !== '\\') && (char !== '$')) current += '\\'; + current += char; + return sOut; +}; +sAhead = function (char) { + if (char === '{') { + literals.push(current); + current = ''; + return sIn; + } + if (char === '$') { + current += '$'; + return sAhead; + } + current += '$' + char; + return sOut; +}; +sIn = function (char) { + var code = template.slice(i), end; + esniff(code, '}', function (j) { + if (esniff.nest >= 0) return esniff.next(); + end = j; + }); + if (end != null) { + substitutions.push(template.slice(i, i + end)); + i += end; + current = ''; + return sOut; + } + end = code.length; + i += end; + current += code; + return sIn; +}; +sInEscape = function (char) { + if ((char !== '\\') && (char !== '}')) current += '\\'; + current += char; + return sIn; +}; + +module.exports = function (str) { + var length, state, result; + current = ''; + literals = []; + substitutions = []; + + template = String(str); + length = template.length; + + state = sOut; + for (i = 0; i < length; ++i) state = state(template[i]); + if (state === sOut) { + literals.push(current); + } else if (state === sEscape) { + literals.push(current + '\\'); + } else if (state === sAhead) { + literals.push(current + '$'); + } else if (state === sIn) { + literals[literals.length - 1] += '${' + current; + } else if (state === sInEscape) { + literals[literals.length - 1] += '${' + current + '\\'; + } + result = { literals: literals, substitutions: substitutions }; + literals = substitutions = null; + return result; +}; + +},{"esniff":39}],36:[function(require,module,exports){ +'use strict'; + +var value = require('es5-ext/object/valid-value') + , normalize = require('es5-ext/object/normalize-options') + + , map = Array.prototype.map, keys = Object.keys + , stringify = JSON.stringify; + +module.exports = function (data, context/*, options*/) { + var names, argNames, argValues, options = Object(arguments[2]); + + (value(data) && value(data.literals) && value(data.substitutions)); + context = normalize(context); + names = keys(context); + argNames = names.join(', '); + argValues = names.map(function (name) { return context[name]; }); + return [data.literals].concat(map.call(data.substitutions, function (expr) { + var resolver; + if (!expr) return undefined; + try { + resolver = new Function(argNames, 'return (' + expr + ')'); + } catch (e) { + throw new TypeError("Unable to compile expression:\n\targs: " + stringify(argNames) + + "\n\tbody: " + stringify(expr) + "\n\terror: " + e.stack); + } + try { + return resolver.apply(null, argValues); + } catch (e) { + if (options.partial) return '${' + expr + '}'; + throw new TypeError("Unable to resolve expression:\n\targs: " + stringify(argNames) + + "\n\tbody: " + stringify(expr) + "\n\terror: " + e.stack); + } + })); +}; + +},{"es5-ext/object/normalize-options":22,"es5-ext/object/valid-value":25}],37:[function(require,module,exports){ +(function (global){ +/* + Copyright (C) 2012-2014 Yusuke Suzuki + Copyright (C) 2015 Ingvar Stepanyan + Copyright (C) 2014 Ivan Nikulin + Copyright (C) 2012-2013 Michael Ficarra + Copyright (C) 2012-2013 Mathias Bynens + Copyright (C) 2013 Irakli Gozalishvili + Copyright (C) 2012 Robert Gust-Bardon + Copyright (C) 2012 John Freeman + Copyright (C) 2011-2012 Ariya Hidayat + Copyright (C) 2012 Joost-Wim Boekesteijn + Copyright (C) 2012 Kris Kowal + Copyright (C) 2012 Arpad Borsos + + Redistribution and use in source and binary forms, with or without + modification, are permitted provided that the following conditions are met: + + * Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. + * Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in the + documentation and/or other materials provided with the distribution. + + THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + ARE DISCLAIMED. IN NO EVENT SHALL BE LIABLE FOR ANY + DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +*/ + +/*global exports:true, require:true, global:true*/ +(function () { + 'use strict'; + + var Syntax, + Precedence, + BinaryPrecedence, + SourceNode, + estraverse, + esutils, + isArray, + base, + indent, + json, + renumber, + hexadecimal, + quotes, + escapeless, + newline, + space, + parentheses, + semicolons, + safeConcatenation, + directive, + extra, + parse, + sourceMap, + sourceCode, + preserveBlankLines, + FORMAT_MINIFY, + FORMAT_DEFAULTS; + + estraverse = require('estraverse'); + esutils = require('esutils'); + + Syntax = estraverse.Syntax; + + // Generation is done by generateExpression. + function isExpression(node) { + return CodeGenerator.Expression.hasOwnProperty(node.type); + } + + // Generation is done by generateStatement. + function isStatement(node) { + return CodeGenerator.Statement.hasOwnProperty(node.type); + } + + Precedence = { + Sequence: 0, + Yield: 1, + Await: 1, + Assignment: 1, + Conditional: 2, + ArrowFunction: 2, + LogicalOR: 3, + LogicalAND: 4, + BitwiseOR: 5, + BitwiseXOR: 6, + BitwiseAND: 7, + Equality: 8, + Relational: 9, + BitwiseSHIFT: 10, + Additive: 11, + Multiplicative: 12, + Unary: 13, + Postfix: 14, + Call: 15, + New: 16, + TaggedTemplate: 17, + Member: 18, + Primary: 19 + }; + + BinaryPrecedence = { + '||': Precedence.LogicalOR, + '&&': Precedence.LogicalAND, + '|': Precedence.BitwiseOR, + '^': Precedence.BitwiseXOR, + '&': Precedence.BitwiseAND, + '==': Precedence.Equality, + '!=': Precedence.Equality, + '===': Precedence.Equality, + '!==': Precedence.Equality, + 'is': Precedence.Equality, + 'isnt': Precedence.Equality, + '<': Precedence.Relational, + '>': Precedence.Relational, + '<=': Precedence.Relational, + '>=': Precedence.Relational, + 'in': Precedence.Relational, + 'instanceof': Precedence.Relational, + '<<': Precedence.BitwiseSHIFT, + '>>': Precedence.BitwiseSHIFT, + '>>>': Precedence.BitwiseSHIFT, + '+': Precedence.Additive, + '-': Precedence.Additive, + '*': Precedence.Multiplicative, + '%': Precedence.Multiplicative, + '/': Precedence.Multiplicative + }; + + //Flags + var F_ALLOW_IN = 1, + F_ALLOW_CALL = 1 << 1, + F_ALLOW_UNPARATH_NEW = 1 << 2, + F_FUNC_BODY = 1 << 3, + F_DIRECTIVE_CTX = 1 << 4, + F_SEMICOLON_OPT = 1 << 5; + + //Expression flag sets + //NOTE: Flag order: + // F_ALLOW_IN + // F_ALLOW_CALL + // F_ALLOW_UNPARATH_NEW + var E_FTT = F_ALLOW_CALL | F_ALLOW_UNPARATH_NEW, + E_TTF = F_ALLOW_IN | F_ALLOW_CALL, + E_TTT = F_ALLOW_IN | F_ALLOW_CALL | F_ALLOW_UNPARATH_NEW, + E_TFF = F_ALLOW_IN, + E_FFT = F_ALLOW_UNPARATH_NEW, + E_TFT = F_ALLOW_IN | F_ALLOW_UNPARATH_NEW; + + //Statement flag sets + //NOTE: Flag order: + // F_ALLOW_IN + // F_FUNC_BODY + // F_DIRECTIVE_CTX + // F_SEMICOLON_OPT + var S_TFFF = F_ALLOW_IN, + S_TFFT = F_ALLOW_IN | F_SEMICOLON_OPT, + S_FFFF = 0x00, + S_TFTF = F_ALLOW_IN | F_DIRECTIVE_CTX, + S_TTFF = F_ALLOW_IN | F_FUNC_BODY; + + function getDefaultOptions() { + // default options + return { + indent: null, + base: null, + parse: null, + comment: false, + format: { + indent: { + style: ' ', + base: 0, + adjustMultilineComment: false + }, + newline: '\n', + space: ' ', + json: false, + renumber: false, + hexadecimal: false, + quotes: 'single', + escapeless: false, + compact: false, + parentheses: true, + semicolons: true, + safeConcatenation: false, + preserveBlankLines: false + }, + moz: { + comprehensionExpressionStartsWithAssignment: false, + starlessGenerator: false + }, + sourceMap: null, + sourceMapRoot: null, + sourceMapWithCode: false, + directive: false, + raw: true, + verbatim: null, + sourceCode: null + }; + } + + function stringRepeat(str, num) { + var result = ''; + + for (num |= 0; num > 0; num >>>= 1, str += str) { + if (num & 1) { + result += str; + } + } + + return result; + } + + isArray = Array.isArray; + if (!isArray) { + isArray = function isArray(array) { + return Object.prototype.toString.call(array) === '[object Array]'; + }; + } + + function hasLineTerminator(str) { + return (/[\r\n]/g).test(str); + } + + function endsWithLineTerminator(str) { + var len = str.length; + return len && esutils.code.isLineTerminator(str.charCodeAt(len - 1)); + } + + function merge(target, override) { + var key; + for (key in override) { + if (override.hasOwnProperty(key)) { + target[key] = override[key]; + } + } + return target; + } + + function updateDeeply(target, override) { + var key, val; + + function isHashObject(target) { + return typeof target === 'object' && target instanceof Object && !(target instanceof RegExp); + } + + for (key in override) { + if (override.hasOwnProperty(key)) { + val = override[key]; + if (isHashObject(val)) { + if (isHashObject(target[key])) { + updateDeeply(target[key], val); + } else { + target[key] = updateDeeply({}, val); + } + } else { + target[key] = val; + } + } + } + return target; + } + + function generateNumber(value) { + var result, point, temp, exponent, pos; + + if (value !== value) { + throw new Error('Numeric literal whose value is NaN'); + } + if (value < 0 || (value === 0 && 1 / value < 0)) { + throw new Error('Numeric literal whose value is negative'); + } + + if (value === 1 / 0) { + return json ? 'null' : renumber ? '1e400' : '1e+400'; + } + + result = '' + value; + if (!renumber || result.length < 3) { + return result; + } + + point = result.indexOf('.'); + if (!json && result.charCodeAt(0) === 0x30 /* 0 */ && point === 1) { + point = 0; + result = result.slice(1); + } + temp = result; + result = result.replace('e+', 'e'); + exponent = 0; + if ((pos = temp.indexOf('e')) > 0) { + exponent = +temp.slice(pos + 1); + temp = temp.slice(0, pos); + } + if (point >= 0) { + exponent -= temp.length - point - 1; + temp = +(temp.slice(0, point) + temp.slice(point + 1)) + ''; + } + pos = 0; + while (temp.charCodeAt(temp.length + pos - 1) === 0x30 /* 0 */) { + --pos; + } + if (pos !== 0) { + exponent -= pos; + temp = temp.slice(0, pos); + } + if (exponent !== 0) { + temp += 'e' + exponent; + } + if ((temp.length < result.length || + (hexadecimal && value > 1e12 && Math.floor(value) === value && (temp = '0x' + value.toString(16)).length < result.length)) && + +temp === value) { + result = temp; + } + + return result; + } + + // Generate valid RegExp expression. + // This function is based on https://github.com/Constellation/iv Engine + + function escapeRegExpCharacter(ch, previousIsBackslash) { + // not handling '\' and handling \u2028 or \u2029 to unicode escape sequence + if ((ch & ~1) === 0x2028) { + return (previousIsBackslash ? 'u' : '\\u') + ((ch === 0x2028) ? '2028' : '2029'); + } else if (ch === 10 || ch === 13) { // \n, \r + return (previousIsBackslash ? '' : '\\') + ((ch === 10) ? 'n' : 'r'); + } + return String.fromCharCode(ch); + } + + function generateRegExp(reg) { + var match, result, flags, i, iz, ch, characterInBrack, previousIsBackslash; + + result = reg.toString(); + + if (reg.source) { + // extract flag from toString result + match = result.match(/\/([^/]*)$/); + if (!match) { + return result; + } + + flags = match[1]; + result = ''; + + characterInBrack = false; + previousIsBackslash = false; + for (i = 0, iz = reg.source.length; i < iz; ++i) { + ch = reg.source.charCodeAt(i); + + if (!previousIsBackslash) { + if (characterInBrack) { + if (ch === 93) { // ] + characterInBrack = false; + } + } else { + if (ch === 47) { // / + result += '\\'; + } else if (ch === 91) { // [ + characterInBrack = true; + } + } + result += escapeRegExpCharacter(ch, previousIsBackslash); + previousIsBackslash = ch === 92; // \ + } else { + // if new RegExp("\\\n') is provided, create /\n/ + result += escapeRegExpCharacter(ch, previousIsBackslash); + // prevent like /\\[/]/ + previousIsBackslash = false; + } + } + + return '/' + result + '/' + flags; + } + + return result; + } + + function escapeAllowedCharacter(code, next) { + var hex; + + if (code === 0x08 /* \b */) { + return '\\b'; + } + + if (code === 0x0C /* \f */) { + return '\\f'; + } + + if (code === 0x09 /* \t */) { + return '\\t'; + } + + hex = code.toString(16).toUpperCase(); + if (json || code > 0xFF) { + return '\\u' + '0000'.slice(hex.length) + hex; + } else if (code === 0x0000 && !esutils.code.isDecimalDigit(next)) { + return '\\0'; + } else if (code === 0x000B /* \v */) { // '\v' + return '\\x0B'; + } else { + return '\\x' + '00'.slice(hex.length) + hex; + } + } + + function escapeDisallowedCharacter(code) { + if (code === 0x5C /* \ */) { + return '\\\\'; + } + + if (code === 0x0A /* \n */) { + return '\\n'; + } + + if (code === 0x0D /* \r */) { + return '\\r'; + } + + if (code === 0x2028) { + return '\\u2028'; + } + + if (code === 0x2029) { + return '\\u2029'; + } + + throw new Error('Incorrectly classified character'); + } + + function escapeDirective(str) { + var i, iz, code, quote; + + quote = quotes === 'double' ? '"' : '\''; + for (i = 0, iz = str.length; i < iz; ++i) { + code = str.charCodeAt(i); + if (code === 0x27 /* ' */) { + quote = '"'; + break; + } else if (code === 0x22 /* " */) { + quote = '\''; + break; + } else if (code === 0x5C /* \ */) { + ++i; + } + } + + return quote + str + quote; + } + + function escapeString(str) { + var result = '', i, len, code, singleQuotes = 0, doubleQuotes = 0, single, quote; + + for (i = 0, len = str.length; i < len; ++i) { + code = str.charCodeAt(i); + if (code === 0x27 /* ' */) { + ++singleQuotes; + } else if (code === 0x22 /* " */) { + ++doubleQuotes; + } else if (code === 0x2F /* / */ && json) { + result += '\\'; + } else if (esutils.code.isLineTerminator(code) || code === 0x5C /* \ */) { + result += escapeDisallowedCharacter(code); + continue; + } else if (!esutils.code.isIdentifierPartES5(code) && (json && code < 0x20 /* SP */ || !json && !escapeless && (code < 0x20 /* SP */ || code > 0x7E /* ~ */))) { + result += escapeAllowedCharacter(code, str.charCodeAt(i + 1)); + continue; + } + result += String.fromCharCode(code); + } + + single = !(quotes === 'double' || (quotes === 'auto' && doubleQuotes < singleQuotes)); + quote = single ? '\'' : '"'; + + if (!(single ? singleQuotes : doubleQuotes)) { + return quote + result + quote; + } + + str = result; + result = quote; + + for (i = 0, len = str.length; i < len; ++i) { + code = str.charCodeAt(i); + if ((code === 0x27 /* ' */ && single) || (code === 0x22 /* " */ && !single)) { + result += '\\'; + } + result += String.fromCharCode(code); + } + + return result + quote; + } + + /** + * flatten an array to a string, where the array can contain + * either strings or nested arrays + */ + function flattenToString(arr) { + var i, iz, elem, result = ''; + for (i = 0, iz = arr.length; i < iz; ++i) { + elem = arr[i]; + result += isArray(elem) ? flattenToString(elem) : elem; + } + return result; + } + + /** + * convert generated to a SourceNode when source maps are enabled. + */ + function toSourceNodeWhenNeeded(generated, node) { + if (!sourceMap) { + // with no source maps, generated is either an + // array or a string. if an array, flatten it. + // if a string, just return it + if (isArray(generated)) { + return flattenToString(generated); + } else { + return generated; + } + } + if (node == null) { + if (generated instanceof SourceNode) { + return generated; + } else { + node = {}; + } + } + if (node.loc == null) { + return new SourceNode(null, null, sourceMap, generated, node.name || null); + } + return new SourceNode(node.loc.start.line, node.loc.start.column, (sourceMap === true ? node.loc.source || null : sourceMap), generated, node.name || null); + } + + function noEmptySpace() { + return (space) ? space : ' '; + } + + function join(left, right) { + var leftSource, + rightSource, + leftCharCode, + rightCharCode; + + leftSource = toSourceNodeWhenNeeded(left).toString(); + if (leftSource.length === 0) { + return [right]; + } + + rightSource = toSourceNodeWhenNeeded(right).toString(); + if (rightSource.length === 0) { + return [left]; + } + + leftCharCode = leftSource.charCodeAt(leftSource.length - 1); + rightCharCode = rightSource.charCodeAt(0); + + if ((leftCharCode === 0x2B /* + */ || leftCharCode === 0x2D /* - */) && leftCharCode === rightCharCode || + esutils.code.isIdentifierPartES5(leftCharCode) && esutils.code.isIdentifierPartES5(rightCharCode) || + leftCharCode === 0x2F /* / */ && rightCharCode === 0x69 /* i */) { // infix word operators all start with `i` + return [left, noEmptySpace(), right]; + } else if (esutils.code.isWhiteSpace(leftCharCode) || esutils.code.isLineTerminator(leftCharCode) || + esutils.code.isWhiteSpace(rightCharCode) || esutils.code.isLineTerminator(rightCharCode)) { + return [left, right]; + } + return [left, space, right]; + } + + function addIndent(stmt) { + return [base, stmt]; + } + + function withIndent(fn) { + var previousBase; + previousBase = base; + base += indent; + fn(base); + base = previousBase; + } + + function calculateSpaces(str) { + var i; + for (i = str.length - 1; i >= 0; --i) { + if (esutils.code.isLineTerminator(str.charCodeAt(i))) { + break; + } + } + return (str.length - 1) - i; + } + + function adjustMultilineComment(value, specialBase) { + var array, i, len, line, j, spaces, previousBase, sn; + + array = value.split(/\r\n|[\r\n]/); + spaces = Number.MAX_VALUE; + + // first line doesn't have indentation + for (i = 1, len = array.length; i < len; ++i) { + line = array[i]; + j = 0; + while (j < line.length && esutils.code.isWhiteSpace(line.charCodeAt(j))) { + ++j; + } + if (spaces > j) { + spaces = j; + } + } + + if (typeof specialBase !== 'undefined') { + // pattern like + // { + // var t = 20; /* + // * this is comment + // */ + // } + previousBase = base; + if (array[1][spaces] === '*') { + specialBase += ' '; + } + base = specialBase; + } else { + if (spaces & 1) { + // /* + // * + // */ + // If spaces are odd number, above pattern is considered. + // We waste 1 space. + --spaces; + } + previousBase = base; + } + + for (i = 1, len = array.length; i < len; ++i) { + sn = toSourceNodeWhenNeeded(addIndent(array[i].slice(spaces))); + array[i] = sourceMap ? sn.join('') : sn; + } + + base = previousBase; + + return array.join('\n'); + } + + function generateComment(comment, specialBase) { + if (comment.type === 'Line') { + if (endsWithLineTerminator(comment.value)) { + return '//' + comment.value; + } else { + // Always use LineTerminator + var result = '//' + comment.value; + if (!preserveBlankLines) { + result += '\n'; + } + return result; + } + } + if (extra.format.indent.adjustMultilineComment && /[\n\r]/.test(comment.value)) { + return adjustMultilineComment('/*' + comment.value + '*/', specialBase); + } + return '/*' + comment.value + '*/'; + } + + function addComments(stmt, result) { + var i, len, comment, save, tailingToStatement, specialBase, fragment, + extRange, range, prevRange, prefix, infix, suffix, count; + + if (stmt.leadingComments && stmt.leadingComments.length > 0) { + save = result; + + if (preserveBlankLines) { + comment = stmt.leadingComments[0]; + result = []; + + extRange = comment.extendedRange; + range = comment.range; + + prefix = sourceCode.substring(extRange[0], range[0]); + count = (prefix.match(/\n/g) || []).length; + if (count > 0) { + result.push(stringRepeat('\n', count)); + result.push(addIndent(generateComment(comment))); + } else { + result.push(prefix); + result.push(generateComment(comment)); + } + + prevRange = range; + + for (i = 1, len = stmt.leadingComments.length; i < len; i++) { + comment = stmt.leadingComments[i]; + range = comment.range; + + infix = sourceCode.substring(prevRange[1], range[0]); + count = (infix.match(/\n/g) || []).length; + result.push(stringRepeat('\n', count)); + result.push(addIndent(generateComment(comment))); + + prevRange = range; + } + + suffix = sourceCode.substring(range[1], extRange[1]); + count = (suffix.match(/\n/g) || []).length; + result.push(stringRepeat('\n', count)); + } else { + comment = stmt.leadingComments[0]; + result = []; + if (safeConcatenation && stmt.type === Syntax.Program && stmt.body.length === 0) { + result.push('\n'); + } + result.push(generateComment(comment)); + if (!endsWithLineTerminator(toSourceNodeWhenNeeded(result).toString())) { + result.push('\n'); + } + + for (i = 1, len = stmt.leadingComments.length; i < len; ++i) { + comment = stmt.leadingComments[i]; + fragment = [generateComment(comment)]; + if (!endsWithLineTerminator(toSourceNodeWhenNeeded(fragment).toString())) { + fragment.push('\n'); + } + result.push(addIndent(fragment)); + } + } + + result.push(addIndent(save)); + } + + if (stmt.trailingComments) { + + if (preserveBlankLines) { + comment = stmt.trailingComments[0]; + extRange = comment.extendedRange; + range = comment.range; + + prefix = sourceCode.substring(extRange[0], range[0]); + count = (prefix.match(/\n/g) || []).length; + + if (count > 0) { + result.push(stringRepeat('\n', count)); + result.push(addIndent(generateComment(comment))); + } else { + result.push(prefix); + result.push(generateComment(comment)); + } + } else { + tailingToStatement = !endsWithLineTerminator(toSourceNodeWhenNeeded(result).toString()); + specialBase = stringRepeat(' ', calculateSpaces(toSourceNodeWhenNeeded([base, result, indent]).toString())); + for (i = 0, len = stmt.trailingComments.length; i < len; ++i) { + comment = stmt.trailingComments[i]; + if (tailingToStatement) { + // We assume target like following script + // + // var t = 20; /** + // * This is comment of t + // */ + if (i === 0) { + // first case + result = [result, indent]; + } else { + result = [result, specialBase]; + } + result.push(generateComment(comment, specialBase)); + } else { + result = [result, addIndent(generateComment(comment))]; + } + if (i !== len - 1 && !endsWithLineTerminator(toSourceNodeWhenNeeded(result).toString())) { + result = [result, '\n']; + } + } + } + } + + return result; + } + + function generateBlankLines(start, end, result) { + var j, newlineCount = 0; + + for (j = start; j < end; j++) { + if (sourceCode[j] === '\n') { + newlineCount++; + } + } + + for (j = 1; j < newlineCount; j++) { + result.push(newline); + } + } + + function parenthesize(text, current, should) { + if (current < should) { + return ['(', text, ')']; + } + return text; + } + + function generateVerbatimString(string) { + var i, iz, result; + result = string.split(/\r\n|\n/); + for (i = 1, iz = result.length; i < iz; i++) { + result[i] = newline + base + result[i]; + } + return result; + } + + function generateVerbatim(expr, precedence) { + var verbatim, result, prec; + verbatim = expr[extra.verbatim]; + + if (typeof verbatim === 'string') { + result = parenthesize(generateVerbatimString(verbatim), Precedence.Sequence, precedence); + } else { + // verbatim is object + result = generateVerbatimString(verbatim.content); + prec = (verbatim.precedence != null) ? verbatim.precedence : Precedence.Sequence; + result = parenthesize(result, prec, precedence); + } + + return toSourceNodeWhenNeeded(result, expr); + } + + function CodeGenerator() { + } + + // Helpers. + + CodeGenerator.prototype.maybeBlock = function(stmt, flags) { + var result, noLeadingComment, that = this; + + noLeadingComment = !extra.comment || !stmt.leadingComments; + + if (stmt.type === Syntax.BlockStatement && noLeadingComment) { + return [space, this.generateStatement(stmt, flags)]; + } + + if (stmt.type === Syntax.EmptyStatement && noLeadingComment) { + return ';'; + } + + withIndent(function () { + result = [ + newline, + addIndent(that.generateStatement(stmt, flags)) + ]; + }); + + return result; + }; + + CodeGenerator.prototype.maybeBlockSuffix = function (stmt, result) { + var ends = endsWithLineTerminator(toSourceNodeWhenNeeded(result).toString()); + if (stmt.type === Syntax.BlockStatement && (!extra.comment || !stmt.leadingComments) && !ends) { + return [result, space]; + } + if (ends) { + return [result, base]; + } + return [result, newline, base]; + }; + + function generateIdentifier(node) { + return toSourceNodeWhenNeeded(node.name, node); + } + + function generateAsyncPrefix(node, spaceRequired) { + return node.async ? 'async' + (spaceRequired ? noEmptySpace() : space) : ''; + } + + function generateStarSuffix(node) { + var isGenerator = node.generator && !extra.moz.starlessGenerator; + return isGenerator ? '*' + space : ''; + } + + function generateMethodPrefix(prop) { + var func = prop.value; + if (func.async) { + return generateAsyncPrefix(func, !prop.computed); + } else { + // avoid space before method name + return generateStarSuffix(func) ? '*' : ''; + } + } + + CodeGenerator.prototype.generatePattern = function (node, precedence, flags) { + if (node.type === Syntax.Identifier) { + return generateIdentifier(node); + } + return this.generateExpression(node, precedence, flags); + }; + + CodeGenerator.prototype.generateFunctionParams = function (node) { + var i, iz, result, hasDefault; + + hasDefault = false; + + if (node.type === Syntax.ArrowFunctionExpression && + !node.rest && (!node.defaults || node.defaults.length === 0) && + node.params.length === 1 && node.params[0].type === Syntax.Identifier) { + // arg => { } case + result = [generateAsyncPrefix(node, true), generateIdentifier(node.params[0])]; + } else { + result = node.type === Syntax.ArrowFunctionExpression ? [generateAsyncPrefix(node, false)] : []; + result.push('('); + if (node.defaults) { + hasDefault = true; + } + for (i = 0, iz = node.params.length; i < iz; ++i) { + if (hasDefault && node.defaults[i]) { + // Handle default values. + result.push(this.generateAssignment(node.params[i], node.defaults[i], '=', Precedence.Assignment, E_TTT)); + } else { + result.push(this.generatePattern(node.params[i], Precedence.Assignment, E_TTT)); + } + if (i + 1 < iz) { + result.push(',' + space); + } + } + + if (node.rest) { + if (node.params.length) { + result.push(',' + space); + } + result.push('...'); + result.push(generateIdentifier(node.rest)); + } + + result.push(')'); + } + + return result; + }; + + CodeGenerator.prototype.generateFunctionBody = function (node) { + var result, expr; + + result = this.generateFunctionParams(node); + + if (node.type === Syntax.ArrowFunctionExpression) { + result.push(space); + result.push('=>'); + } + + if (node.expression) { + result.push(space); + expr = this.generateExpression(node.body, Precedence.Assignment, E_TTT); + if (expr.toString().charAt(0) === '{') { + expr = ['(', expr, ')']; + } + result.push(expr); + } else { + result.push(this.maybeBlock(node.body, S_TTFF)); + } + + return result; + }; + + CodeGenerator.prototype.generateIterationForStatement = function (operator, stmt, flags) { + var result = ['for' + space + '('], that = this; + withIndent(function () { + if (stmt.left.type === Syntax.VariableDeclaration) { + withIndent(function () { + result.push(stmt.left.kind + noEmptySpace()); + result.push(that.generateStatement(stmt.left.declarations[0], S_FFFF)); + }); + } else { + result.push(that.generateExpression(stmt.left, Precedence.Call, E_TTT)); + } + + result = join(result, operator); + result = [join( + result, + that.generateExpression(stmt.right, Precedence.Sequence, E_TTT) + ), ')']; + }); + result.push(this.maybeBlock(stmt.body, flags)); + return result; + }; + + CodeGenerator.prototype.generatePropertyKey = function (expr, computed) { + var result = []; + + if (computed) { + result.push('['); + } + + result.push(this.generateExpression(expr, Precedence.Sequence, E_TTT)); + if (computed) { + result.push(']'); + } + + return result; + }; + + CodeGenerator.prototype.generateAssignment = function (left, right, operator, precedence, flags) { + if (Precedence.Assignment < precedence) { + flags |= F_ALLOW_IN; + } + + return parenthesize( + [ + this.generateExpression(left, Precedence.Call, flags), + space + operator + space, + this.generateExpression(right, Precedence.Assignment, flags) + ], + Precedence.Assignment, + precedence + ); + }; + + CodeGenerator.prototype.semicolon = function (flags) { + if (!semicolons && flags & F_SEMICOLON_OPT) { + return ''; + } + return ';'; + }; + + // Statements. + + CodeGenerator.Statement = { + + BlockStatement: function (stmt, flags) { + var range, content, result = ['{', newline], that = this; + + withIndent(function () { + // handle functions without any code + if (stmt.body.length === 0 && preserveBlankLines) { + range = stmt.range; + if (range[1] - range[0] > 2) { + content = sourceCode.substring(range[0] + 1, range[1] - 1); + if (content[0] === '\n') { + result = ['{']; + } + result.push(content); + } + } + + var i, iz, fragment, bodyFlags; + bodyFlags = S_TFFF; + if (flags & F_FUNC_BODY) { + bodyFlags |= F_DIRECTIVE_CTX; + } + + for (i = 0, iz = stmt.body.length; i < iz; ++i) { + if (preserveBlankLines) { + // handle spaces before the first line + if (i === 0) { + if (stmt.body[0].leadingComments) { + range = stmt.body[0].leadingComments[0].extendedRange; + content = sourceCode.substring(range[0], range[1]); + if (content[0] === '\n') { + result = ['{']; + } + } + if (!stmt.body[0].leadingComments) { + generateBlankLines(stmt.range[0], stmt.body[0].range[0], result); + } + } + + // handle spaces between lines + if (i > 0) { + if (!stmt.body[i - 1].trailingComments && !stmt.body[i].leadingComments) { + generateBlankLines(stmt.body[i - 1].range[1], stmt.body[i].range[0], result); + } + } + } + + if (i === iz - 1) { + bodyFlags |= F_SEMICOLON_OPT; + } + + if (stmt.body[i].leadingComments && preserveBlankLines) { + fragment = that.generateStatement(stmt.body[i], bodyFlags); + } else { + fragment = addIndent(that.generateStatement(stmt.body[i], bodyFlags)); + } + + result.push(fragment); + if (!endsWithLineTerminator(toSourceNodeWhenNeeded(fragment).toString())) { + if (preserveBlankLines && i < iz - 1) { + // don't add a new line if there are leading coments + // in the next statement + if (!stmt.body[i + 1].leadingComments) { + result.push(newline); + } + } else { + result.push(newline); + } + } + + if (preserveBlankLines) { + // handle spaces after the last line + if (i === iz - 1) { + if (!stmt.body[i].trailingComments) { + generateBlankLines(stmt.body[i].range[1], stmt.range[1], result); + } + } + } + } + }); + + result.push(addIndent('}')); + return result; + }, + + BreakStatement: function (stmt, flags) { + if (stmt.label) { + return 'break ' + stmt.label.name + this.semicolon(flags); + } + return 'break' + this.semicolon(flags); + }, + + ContinueStatement: function (stmt, flags) { + if (stmt.label) { + return 'continue ' + stmt.label.name + this.semicolon(flags); + } + return 'continue' + this.semicolon(flags); + }, + + ClassBody: function (stmt, flags) { + var result = [ '{', newline], that = this; + + withIndent(function (indent) { + var i, iz; + + for (i = 0, iz = stmt.body.length; i < iz; ++i) { + result.push(indent); + result.push(that.generateExpression(stmt.body[i], Precedence.Sequence, E_TTT)); + if (i + 1 < iz) { + result.push(newline); + } + } + }); + + if (!endsWithLineTerminator(toSourceNodeWhenNeeded(result).toString())) { + result.push(newline); + } + result.push(base); + result.push('}'); + return result; + }, + + ClassDeclaration: function (stmt, flags) { + var result, fragment; + result = ['class ' + stmt.id.name]; + if (stmt.superClass) { + fragment = join('extends', this.generateExpression(stmt.superClass, Precedence.Assignment, E_TTT)); + result = join(result, fragment); + } + result.push(space); + result.push(this.generateStatement(stmt.body, S_TFFT)); + return result; + }, + + DirectiveStatement: function (stmt, flags) { + if (extra.raw && stmt.raw) { + return stmt.raw + this.semicolon(flags); + } + return escapeDirective(stmt.directive) + this.semicolon(flags); + }, + + DoWhileStatement: function (stmt, flags) { + // Because `do 42 while (cond)` is Syntax Error. We need semicolon. + var result = join('do', this.maybeBlock(stmt.body, S_TFFF)); + result = this.maybeBlockSuffix(stmt.body, result); + return join(result, [ + 'while' + space + '(', + this.generateExpression(stmt.test, Precedence.Sequence, E_TTT), + ')' + this.semicolon(flags) + ]); + }, + + CatchClause: function (stmt, flags) { + var result, that = this; + withIndent(function () { + var guard; + + result = [ + 'catch' + space + '(', + that.generateExpression(stmt.param, Precedence.Sequence, E_TTT), + ')' + ]; + + if (stmt.guard) { + guard = that.generateExpression(stmt.guard, Precedence.Sequence, E_TTT); + result.splice(2, 0, ' if ', guard); + } + }); + result.push(this.maybeBlock(stmt.body, S_TFFF)); + return result; + }, + + DebuggerStatement: function (stmt, flags) { + return 'debugger' + this.semicolon(flags); + }, + + EmptyStatement: function (stmt, flags) { + return ';'; + }, + + ExportDefaultDeclaration: function (stmt, flags) { + var result = [ 'export' ], bodyFlags; + + bodyFlags = (flags & F_SEMICOLON_OPT) ? S_TFFT : S_TFFF; + + // export default HoistableDeclaration[Default] + // export default AssignmentExpression[In] ; + result = join(result, 'default'); + if (isStatement(stmt.declaration)) { + result = join(result, this.generateStatement(stmt.declaration, bodyFlags)); + } else { + result = join(result, this.generateExpression(stmt.declaration, Precedence.Assignment, E_TTT) + this.semicolon(flags)); + } + return result; + }, + + ExportNamedDeclaration: function (stmt, flags) { + var result = [ 'export' ], bodyFlags, that = this; + + bodyFlags = (flags & F_SEMICOLON_OPT) ? S_TFFT : S_TFFF; + + // export VariableStatement + // export Declaration[Default] + if (stmt.declaration) { + return join(result, this.generateStatement(stmt.declaration, bodyFlags)); + } + + // export ExportClause[NoReference] FromClause ; + // export ExportClause ; + if (stmt.specifiers) { + if (stmt.specifiers.length === 0) { + result = join(result, '{' + space + '}'); + } else if (stmt.specifiers[0].type === Syntax.ExportBatchSpecifier) { + result = join(result, this.generateExpression(stmt.specifiers[0], Precedence.Sequence, E_TTT)); + } else { + result = join(result, '{'); + withIndent(function (indent) { + var i, iz; + result.push(newline); + for (i = 0, iz = stmt.specifiers.length; i < iz; ++i) { + result.push(indent); + result.push(that.generateExpression(stmt.specifiers[i], Precedence.Sequence, E_TTT)); + if (i + 1 < iz) { + result.push(',' + newline); + } + } + }); + if (!endsWithLineTerminator(toSourceNodeWhenNeeded(result).toString())) { + result.push(newline); + } + result.push(base + '}'); + } + + if (stmt.source) { + result = join(result, [ + 'from' + space, + // ModuleSpecifier + this.generateExpression(stmt.source, Precedence.Sequence, E_TTT), + this.semicolon(flags) + ]); + } else { + result.push(this.semicolon(flags)); + } + } + return result; + }, + + ExportAllDeclaration: function (stmt, flags) { + // export * FromClause ; + return [ + 'export' + space, + '*' + space, + 'from' + space, + // ModuleSpecifier + this.generateExpression(stmt.source, Precedence.Sequence, E_TTT), + this.semicolon(flags) + ]; + }, + + ExpressionStatement: function (stmt, flags) { + var result, fragment; + + function isClassPrefixed(fragment) { + var code; + if (fragment.slice(0, 5) !== 'class') { + return false; + } + code = fragment.charCodeAt(5); + return code === 0x7B /* '{' */ || esutils.code.isWhiteSpace(code) || esutils.code.isLineTerminator(code); + } + + function isFunctionPrefixed(fragment) { + var code; + if (fragment.slice(0, 8) !== 'function') { + return false; + } + code = fragment.charCodeAt(8); + return code === 0x28 /* '(' */ || esutils.code.isWhiteSpace(code) || code === 0x2A /* '*' */ || esutils.code.isLineTerminator(code); + } + + function isAsyncPrefixed(fragment) { + var code, i, iz; + if (fragment.slice(0, 5) !== 'async') { + return false; + } + if (!esutils.code.isWhiteSpace(fragment.charCodeAt(5))) { + return false; + } + for (i = 6, iz = fragment.length; i < iz; ++i) { + if (!esutils.code.isWhiteSpace(fragment.charCodeAt(i))) { + break; + } + } + if (i === iz) { + return false; + } + if (fragment.slice(i, i + 8) !== 'function') { + return false; + } + code = fragment.charCodeAt(i + 8); + return code === 0x28 /* '(' */ || esutils.code.isWhiteSpace(code) || code === 0x2A /* '*' */ || esutils.code.isLineTerminator(code); + } + + result = [this.generateExpression(stmt.expression, Precedence.Sequence, E_TTT)]; + // 12.4 '{', 'function', 'class' is not allowed in this position. + // wrap expression with parentheses + fragment = toSourceNodeWhenNeeded(result).toString(); + if (fragment.charCodeAt(0) === 0x7B /* '{' */ || // ObjectExpression + isClassPrefixed(fragment) || + isFunctionPrefixed(fragment) || + isAsyncPrefixed(fragment) || + (directive && (flags & F_DIRECTIVE_CTX) && stmt.expression.type === Syntax.Literal && typeof stmt.expression.value === 'string')) { + result = ['(', result, ')' + this.semicolon(flags)]; + } else { + result.push(this.semicolon(flags)); + } + return result; + }, + + ImportDeclaration: function (stmt, flags) { + // ES6: 15.2.1 valid import declarations: + // - import ImportClause FromClause ; + // - import ModuleSpecifier ; + var result, cursor, that = this; + + // If no ImportClause is present, + // this should be `import ModuleSpecifier` so skip `from` + // ModuleSpecifier is StringLiteral. + if (stmt.specifiers.length === 0) { + // import ModuleSpecifier ; + return [ + 'import', + space, + // ModuleSpecifier + this.generateExpression(stmt.source, Precedence.Sequence, E_TTT), + this.semicolon(flags) + ]; + } + + // import ImportClause FromClause ; + result = [ + 'import' + ]; + cursor = 0; + + // ImportedBinding + if (stmt.specifiers[cursor].type === Syntax.ImportDefaultSpecifier) { + result = join(result, [ + this.generateExpression(stmt.specifiers[cursor], Precedence.Sequence, E_TTT) + ]); + ++cursor; + } + + if (stmt.specifiers[cursor]) { + if (cursor !== 0) { + result.push(','); + } + + if (stmt.specifiers[cursor].type === Syntax.ImportNamespaceSpecifier) { + // NameSpaceImport + result = join(result, [ + space, + this.generateExpression(stmt.specifiers[cursor], Precedence.Sequence, E_TTT) + ]); + } else { + // NamedImports + result.push(space + '{'); + + if ((stmt.specifiers.length - cursor) === 1) { + // import { ... } from "..."; + result.push(space); + result.push(this.generateExpression(stmt.specifiers[cursor], Precedence.Sequence, E_TTT)); + result.push(space + '}' + space); + } else { + // import { + // ..., + // ..., + // } from "..."; + withIndent(function (indent) { + var i, iz; + result.push(newline); + for (i = cursor, iz = stmt.specifiers.length; i < iz; ++i) { + result.push(indent); + result.push(that.generateExpression(stmt.specifiers[i], Precedence.Sequence, E_TTT)); + if (i + 1 < iz) { + result.push(',' + newline); + } + } + }); + if (!endsWithLineTerminator(toSourceNodeWhenNeeded(result).toString())) { + result.push(newline); + } + result.push(base + '}' + space); + } + } + } + + result = join(result, [ + 'from' + space, + // ModuleSpecifier + this.generateExpression(stmt.source, Precedence.Sequence, E_TTT), + this.semicolon(flags) + ]); + return result; + }, + + VariableDeclarator: function (stmt, flags) { + var itemFlags = (flags & F_ALLOW_IN) ? E_TTT : E_FTT; + if (stmt.init) { + return [ + this.generateExpression(stmt.id, Precedence.Assignment, itemFlags), + space, + '=', + space, + this.generateExpression(stmt.init, Precedence.Assignment, itemFlags) + ]; + } + return this.generatePattern(stmt.id, Precedence.Assignment, itemFlags); + }, + + VariableDeclaration: function (stmt, flags) { + // VariableDeclarator is typed as Statement, + // but joined with comma (not LineTerminator). + // So if comment is attached to target node, we should specialize. + var result, i, iz, node, bodyFlags, that = this; + + result = [ stmt.kind ]; + + bodyFlags = (flags & F_ALLOW_IN) ? S_TFFF : S_FFFF; + + function block() { + node = stmt.declarations[0]; + if (extra.comment && node.leadingComments) { + result.push('\n'); + result.push(addIndent(that.generateStatement(node, bodyFlags))); + } else { + result.push(noEmptySpace()); + result.push(that.generateStatement(node, bodyFlags)); + } + + for (i = 1, iz = stmt.declarations.length; i < iz; ++i) { + node = stmt.declarations[i]; + if (extra.comment && node.leadingComments) { + result.push(',' + newline); + result.push(addIndent(that.generateStatement(node, bodyFlags))); + } else { + result.push(',' + space); + result.push(that.generateStatement(node, bodyFlags)); + } + } + } + + if (stmt.declarations.length > 1) { + withIndent(block); + } else { + block(); + } + + result.push(this.semicolon(flags)); + + return result; + }, + + ThrowStatement: function (stmt, flags) { + return [join( + 'throw', + this.generateExpression(stmt.argument, Precedence.Sequence, E_TTT) + ), this.semicolon(flags)]; + }, + + TryStatement: function (stmt, flags) { + var result, i, iz, guardedHandlers; + + result = ['try', this.maybeBlock(stmt.block, S_TFFF)]; + result = this.maybeBlockSuffix(stmt.block, result); + + if (stmt.handlers) { + // old interface + for (i = 0, iz = stmt.handlers.length; i < iz; ++i) { + result = join(result, this.generateStatement(stmt.handlers[i], S_TFFF)); + if (stmt.finalizer || i + 1 !== iz) { + result = this.maybeBlockSuffix(stmt.handlers[i].body, result); + } + } + } else { + guardedHandlers = stmt.guardedHandlers || []; + + for (i = 0, iz = guardedHandlers.length; i < iz; ++i) { + result = join(result, this.generateStatement(guardedHandlers[i], S_TFFF)); + if (stmt.finalizer || i + 1 !== iz) { + result = this.maybeBlockSuffix(guardedHandlers[i].body, result); + } + } + + // new interface + if (stmt.handler) { + if (isArray(stmt.handler)) { + for (i = 0, iz = stmt.handler.length; i < iz; ++i) { + result = join(result, this.generateStatement(stmt.handler[i], S_TFFF)); + if (stmt.finalizer || i + 1 !== iz) { + result = this.maybeBlockSuffix(stmt.handler[i].body, result); + } + } + } else { + result = join(result, this.generateStatement(stmt.handler, S_TFFF)); + if (stmt.finalizer) { + result = this.maybeBlockSuffix(stmt.handler.body, result); + } + } + } + } + if (stmt.finalizer) { + result = join(result, ['finally', this.maybeBlock(stmt.finalizer, S_TFFF)]); + } + return result; + }, + + SwitchStatement: function (stmt, flags) { + var result, fragment, i, iz, bodyFlags, that = this; + withIndent(function () { + result = [ + 'switch' + space + '(', + that.generateExpression(stmt.discriminant, Precedence.Sequence, E_TTT), + ')' + space + '{' + newline + ]; + }); + if (stmt.cases) { + bodyFlags = S_TFFF; + for (i = 0, iz = stmt.cases.length; i < iz; ++i) { + if (i === iz - 1) { + bodyFlags |= F_SEMICOLON_OPT; + } + fragment = addIndent(this.generateStatement(stmt.cases[i], bodyFlags)); + result.push(fragment); + if (!endsWithLineTerminator(toSourceNodeWhenNeeded(fragment).toString())) { + result.push(newline); + } + } + } + result.push(addIndent('}')); + return result; + }, + + SwitchCase: function (stmt, flags) { + var result, fragment, i, iz, bodyFlags, that = this; + withIndent(function () { + if (stmt.test) { + result = [ + join('case', that.generateExpression(stmt.test, Precedence.Sequence, E_TTT)), + ':' + ]; + } else { + result = ['default:']; + } + + i = 0; + iz = stmt.consequent.length; + if (iz && stmt.consequent[0].type === Syntax.BlockStatement) { + fragment = that.maybeBlock(stmt.consequent[0], S_TFFF); + result.push(fragment); + i = 1; + } + + if (i !== iz && !endsWithLineTerminator(toSourceNodeWhenNeeded(result).toString())) { + result.push(newline); + } + + bodyFlags = S_TFFF; + for (; i < iz; ++i) { + if (i === iz - 1 && flags & F_SEMICOLON_OPT) { + bodyFlags |= F_SEMICOLON_OPT; + } + fragment = addIndent(that.generateStatement(stmt.consequent[i], bodyFlags)); + result.push(fragment); + if (i + 1 !== iz && !endsWithLineTerminator(toSourceNodeWhenNeeded(fragment).toString())) { + result.push(newline); + } + } + }); + return result; + }, + + IfStatement: function (stmt, flags) { + var result, bodyFlags, semicolonOptional, that = this; + withIndent(function () { + result = [ + 'if' + space + '(', + that.generateExpression(stmt.test, Precedence.Sequence, E_TTT), + ')' + ]; + }); + semicolonOptional = flags & F_SEMICOLON_OPT; + bodyFlags = S_TFFF; + if (semicolonOptional) { + bodyFlags |= F_SEMICOLON_OPT; + } + if (stmt.alternate) { + result.push(this.maybeBlock(stmt.consequent, S_TFFF)); + result = this.maybeBlockSuffix(stmt.consequent, result); + if (stmt.alternate.type === Syntax.IfStatement) { + result = join(result, ['else ', this.generateStatement(stmt.alternate, bodyFlags)]); + } else { + result = join(result, join('else', this.maybeBlock(stmt.alternate, bodyFlags))); + } + } else { + result.push(this.maybeBlock(stmt.consequent, bodyFlags)); + } + return result; + }, + + ForStatement: function (stmt, flags) { + var result, that = this; + withIndent(function () { + result = ['for' + space + '(']; + if (stmt.init) { + if (stmt.init.type === Syntax.VariableDeclaration) { + result.push(that.generateStatement(stmt.init, S_FFFF)); + } else { + // F_ALLOW_IN becomes false. + result.push(that.generateExpression(stmt.init, Precedence.Sequence, E_FTT)); + result.push(';'); + } + } else { + result.push(';'); + } + + if (stmt.test) { + result.push(space); + result.push(that.generateExpression(stmt.test, Precedence.Sequence, E_TTT)); + result.push(';'); + } else { + result.push(';'); + } + + if (stmt.update) { + result.push(space); + result.push(that.generateExpression(stmt.update, Precedence.Sequence, E_TTT)); + result.push(')'); + } else { + result.push(')'); + } + }); + + result.push(this.maybeBlock(stmt.body, flags & F_SEMICOLON_OPT ? S_TFFT : S_TFFF)); + return result; + }, + + ForInStatement: function (stmt, flags) { + return this.generateIterationForStatement('in', stmt, flags & F_SEMICOLON_OPT ? S_TFFT : S_TFFF); + }, + + ForOfStatement: function (stmt, flags) { + return this.generateIterationForStatement('of', stmt, flags & F_SEMICOLON_OPT ? S_TFFT : S_TFFF); + }, + + LabeledStatement: function (stmt, flags) { + return [stmt.label.name + ':', this.maybeBlock(stmt.body, flags & F_SEMICOLON_OPT ? S_TFFT : S_TFFF)]; + }, + + Program: function (stmt, flags) { + var result, fragment, i, iz, bodyFlags; + iz = stmt.body.length; + result = [safeConcatenation && iz > 0 ? '\n' : '']; + bodyFlags = S_TFTF; + for (i = 0; i < iz; ++i) { + if (!safeConcatenation && i === iz - 1) { + bodyFlags |= F_SEMICOLON_OPT; + } + + if (preserveBlankLines) { + // handle spaces before the first line + if (i === 0) { + if (!stmt.body[0].leadingComments) { + generateBlankLines(stmt.range[0], stmt.body[i].range[0], result); + } + } + + // handle spaces between lines + if (i > 0) { + if (!stmt.body[i - 1].trailingComments && !stmt.body[i].leadingComments) { + generateBlankLines(stmt.body[i - 1].range[1], stmt.body[i].range[0], result); + } + } + } + + fragment = addIndent(this.generateStatement(stmt.body[i], bodyFlags)); + result.push(fragment); + if (i + 1 < iz && !endsWithLineTerminator(toSourceNodeWhenNeeded(fragment).toString())) { + if (preserveBlankLines) { + if (!stmt.body[i + 1].leadingComments) { + result.push(newline); + } + } else { + result.push(newline); + } + } + + if (preserveBlankLines) { + // handle spaces after the last line + if (i === iz - 1) { + if (!stmt.body[i].trailingComments) { + generateBlankLines(stmt.body[i].range[1], stmt.range[1], result); + } + } + } + } + return result; + }, + + FunctionDeclaration: function (stmt, flags) { + return [ + generateAsyncPrefix(stmt, true), + 'function', + generateStarSuffix(stmt) || noEmptySpace(), + stmt.id ? generateIdentifier(stmt.id) : '', + this.generateFunctionBody(stmt) + ]; + }, + + ReturnStatement: function (stmt, flags) { + if (stmt.argument) { + return [join( + 'return', + this.generateExpression(stmt.argument, Precedence.Sequence, E_TTT) + ), this.semicolon(flags)]; + } + return ['return' + this.semicolon(flags)]; + }, + + WhileStatement: function (stmt, flags) { + var result, that = this; + withIndent(function () { + result = [ + 'while' + space + '(', + that.generateExpression(stmt.test, Precedence.Sequence, E_TTT), + ')' + ]; + }); + result.push(this.maybeBlock(stmt.body, flags & F_SEMICOLON_OPT ? S_TFFT : S_TFFF)); + return result; + }, + + WithStatement: function (stmt, flags) { + var result, that = this; + withIndent(function () { + result = [ + 'with' + space + '(', + that.generateExpression(stmt.object, Precedence.Sequence, E_TTT), + ')' + ]; + }); + result.push(this.maybeBlock(stmt.body, flags & F_SEMICOLON_OPT ? S_TFFT : S_TFFF)); + return result; + } + + }; + + merge(CodeGenerator.prototype, CodeGenerator.Statement); + + // Expressions. + + CodeGenerator.Expression = { + + SequenceExpression: function (expr, precedence, flags) { + var result, i, iz; + if (Precedence.Sequence < precedence) { + flags |= F_ALLOW_IN; + } + result = []; + for (i = 0, iz = expr.expressions.length; i < iz; ++i) { + result.push(this.generateExpression(expr.expressions[i], Precedence.Assignment, flags)); + if (i + 1 < iz) { + result.push(',' + space); + } + } + return parenthesize(result, Precedence.Sequence, precedence); + }, + + AssignmentExpression: function (expr, precedence, flags) { + return this.generateAssignment(expr.left, expr.right, expr.operator, precedence, flags); + }, + + ArrowFunctionExpression: function (expr, precedence, flags) { + return parenthesize(this.generateFunctionBody(expr), Precedence.ArrowFunction, precedence); + }, + + ConditionalExpression: function (expr, precedence, flags) { + if (Precedence.Conditional < precedence) { + flags |= F_ALLOW_IN; + } + return parenthesize( + [ + this.generateExpression(expr.test, Precedence.LogicalOR, flags), + space + '?' + space, + this.generateExpression(expr.consequent, Precedence.Assignment, flags), + space + ':' + space, + this.generateExpression(expr.alternate, Precedence.Assignment, flags) + ], + Precedence.Conditional, + precedence + ); + }, + + LogicalExpression: function (expr, precedence, flags) { + return this.BinaryExpression(expr, precedence, flags); + }, + + BinaryExpression: function (expr, precedence, flags) { + var result, currentPrecedence, fragment, leftSource; + currentPrecedence = BinaryPrecedence[expr.operator]; + + if (currentPrecedence < precedence) { + flags |= F_ALLOW_IN; + } + + fragment = this.generateExpression(expr.left, currentPrecedence, flags); + + leftSource = fragment.toString(); + + if (leftSource.charCodeAt(leftSource.length - 1) === 0x2F /* / */ && esutils.code.isIdentifierPartES5(expr.operator.charCodeAt(0))) { + result = [fragment, noEmptySpace(), expr.operator]; + } else { + result = join(fragment, expr.operator); + } + + fragment = this.generateExpression(expr.right, currentPrecedence + 1, flags); + + if (expr.operator === '/' && fragment.toString().charAt(0) === '/' || + expr.operator.slice(-1) === '<' && fragment.toString().slice(0, 3) === '!--') { + // If '/' concats with '/' or `<` concats with `!--`, it is interpreted as comment start + result.push(noEmptySpace()); + result.push(fragment); + } else { + result = join(result, fragment); + } + + if (expr.operator === 'in' && !(flags & F_ALLOW_IN)) { + return ['(', result, ')']; + } + return parenthesize(result, currentPrecedence, precedence); + }, + + CallExpression: function (expr, precedence, flags) { + var result, i, iz; + // F_ALLOW_UNPARATH_NEW becomes false. + result = [this.generateExpression(expr.callee, Precedence.Call, E_TTF)]; + result.push('('); + for (i = 0, iz = expr['arguments'].length; i < iz; ++i) { + result.push(this.generateExpression(expr['arguments'][i], Precedence.Assignment, E_TTT)); + if (i + 1 < iz) { + result.push(',' + space); + } + } + result.push(')'); + + if (!(flags & F_ALLOW_CALL)) { + return ['(', result, ')']; + } + return parenthesize(result, Precedence.Call, precedence); + }, + + NewExpression: function (expr, precedence, flags) { + var result, length, i, iz, itemFlags; + length = expr['arguments'].length; + + // F_ALLOW_CALL becomes false. + // F_ALLOW_UNPARATH_NEW may become false. + itemFlags = (flags & F_ALLOW_UNPARATH_NEW && !parentheses && length === 0) ? E_TFT : E_TFF; + + result = join( + 'new', + this.generateExpression(expr.callee, Precedence.New, itemFlags) + ); + + if (!(flags & F_ALLOW_UNPARATH_NEW) || parentheses || length > 0) { + result.push('('); + for (i = 0, iz = length; i < iz; ++i) { + result.push(this.generateExpression(expr['arguments'][i], Precedence.Assignment, E_TTT)); + if (i + 1 < iz) { + result.push(',' + space); + } + } + result.push(')'); + } + + return parenthesize(result, Precedence.New, precedence); + }, + + MemberExpression: function (expr, precedence, flags) { + var result, fragment; + + // F_ALLOW_UNPARATH_NEW becomes false. + result = [this.generateExpression(expr.object, Precedence.Call, (flags & F_ALLOW_CALL) ? E_TTF : E_TFF)]; + + if (expr.computed) { + result.push('['); + result.push(this.generateExpression(expr.property, Precedence.Sequence, flags & F_ALLOW_CALL ? E_TTT : E_TFT)); + result.push(']'); + } else { + if (expr.object.type === Syntax.Literal && typeof expr.object.value === 'number') { + fragment = toSourceNodeWhenNeeded(result).toString(); + // When the following conditions are all true, + // 1. No floating point + // 2. Don't have exponents + // 3. The last character is a decimal digit + // 4. Not hexadecimal OR octal number literal + // we should add a floating point. + if ( + fragment.indexOf('.') < 0 && + !/[eExX]/.test(fragment) && + esutils.code.isDecimalDigit(fragment.charCodeAt(fragment.length - 1)) && + !(fragment.length >= 2 && fragment.charCodeAt(0) === 48) // '0' + ) { + result.push('.'); + } + } + result.push('.'); + result.push(generateIdentifier(expr.property)); + } + + return parenthesize(result, Precedence.Member, precedence); + }, + + MetaProperty: function (expr, precedence, flags) { + var result; + result = []; + result.push(expr.meta); + result.push('.'); + result.push(expr.property); + return parenthesize(result, Precedence.Member, precedence); + }, + + UnaryExpression: function (expr, precedence, flags) { + var result, fragment, rightCharCode, leftSource, leftCharCode; + fragment = this.generateExpression(expr.argument, Precedence.Unary, E_TTT); + + if (space === '') { + result = join(expr.operator, fragment); + } else { + result = [expr.operator]; + if (expr.operator.length > 2) { + // delete, void, typeof + // get `typeof []`, not `typeof[]` + result = join(result, fragment); + } else { + // Prevent inserting spaces between operator and argument if it is unnecessary + // like, `!cond` + leftSource = toSourceNodeWhenNeeded(result).toString(); + leftCharCode = leftSource.charCodeAt(leftSource.length - 1); + rightCharCode = fragment.toString().charCodeAt(0); + + if (((leftCharCode === 0x2B /* + */ || leftCharCode === 0x2D /* - */) && leftCharCode === rightCharCode) || + (esutils.code.isIdentifierPartES5(leftCharCode) && esutils.code.isIdentifierPartES5(rightCharCode))) { + result.push(noEmptySpace()); + result.push(fragment); + } else { + result.push(fragment); + } + } + } + return parenthesize(result, Precedence.Unary, precedence); + }, + + YieldExpression: function (expr, precedence, flags) { + var result; + if (expr.delegate) { + result = 'yield*'; + } else { + result = 'yield'; + } + if (expr.argument) { + result = join( + result, + this.generateExpression(expr.argument, Precedence.Yield, E_TTT) + ); + } + return parenthesize(result, Precedence.Yield, precedence); + }, + + AwaitExpression: function (expr, precedence, flags) { + var result = join( + expr.all ? 'await*' : 'await', + this.generateExpression(expr.argument, Precedence.Await, E_TTT) + ); + return parenthesize(result, Precedence.Await, precedence); + }, + + UpdateExpression: function (expr, precedence, flags) { + if (expr.prefix) { + return parenthesize( + [ + expr.operator, + this.generateExpression(expr.argument, Precedence.Unary, E_TTT) + ], + Precedence.Unary, + precedence + ); + } + return parenthesize( + [ + this.generateExpression(expr.argument, Precedence.Postfix, E_TTT), + expr.operator + ], + Precedence.Postfix, + precedence + ); + }, + + FunctionExpression: function (expr, precedence, flags) { + var result = [ + generateAsyncPrefix(expr, true), + 'function' + ]; + if (expr.id) { + result.push(generateStarSuffix(expr) || noEmptySpace()); + result.push(generateIdentifier(expr.id)); + } else { + result.push(generateStarSuffix(expr) || space); + } + result.push(this.generateFunctionBody(expr)); + return result; + }, + + ArrayPattern: function (expr, precedence, flags) { + return this.ArrayExpression(expr, precedence, flags, true); + }, + + ArrayExpression: function (expr, precedence, flags, isPattern) { + var result, multiline, that = this; + if (!expr.elements.length) { + return '[]'; + } + multiline = isPattern ? false : expr.elements.length > 1; + result = ['[', multiline ? newline : '']; + withIndent(function (indent) { + var i, iz; + for (i = 0, iz = expr.elements.length; i < iz; ++i) { + if (!expr.elements[i]) { + if (multiline) { + result.push(indent); + } + if (i + 1 === iz) { + result.push(','); + } + } else { + result.push(multiline ? indent : ''); + result.push(that.generateExpression(expr.elements[i], Precedence.Assignment, E_TTT)); + } + if (i + 1 < iz) { + result.push(',' + (multiline ? newline : space)); + } + } + }); + if (multiline && !endsWithLineTerminator(toSourceNodeWhenNeeded(result).toString())) { + result.push(newline); + } + result.push(multiline ? base : ''); + result.push(']'); + return result; + }, + + RestElement: function(expr, precedence, flags) { + return '...' + this.generatePattern(expr.argument); + }, + + ClassExpression: function (expr, precedence, flags) { + var result, fragment; + result = ['class']; + if (expr.id) { + result = join(result, this.generateExpression(expr.id, Precedence.Sequence, E_TTT)); + } + if (expr.superClass) { + fragment = join('extends', this.generateExpression(expr.superClass, Precedence.Assignment, E_TTT)); + result = join(result, fragment); + } + result.push(space); + result.push(this.generateStatement(expr.body, S_TFFT)); + return result; + }, + + MethodDefinition: function (expr, precedence, flags) { + var result, fragment; + if (expr['static']) { + result = ['static' + space]; + } else { + result = []; + } + if (expr.kind === 'get' || expr.kind === 'set') { + fragment = [ + join(expr.kind, this.generatePropertyKey(expr.key, expr.computed)), + this.generateFunctionBody(expr.value) + ]; + } else { + fragment = [ + generateMethodPrefix(expr), + this.generatePropertyKey(expr.key, expr.computed), + this.generateFunctionBody(expr.value) + ]; + } + return join(result, fragment); + }, + + Property: function (expr, precedence, flags) { + if (expr.kind === 'get' || expr.kind === 'set') { + return [ + expr.kind, noEmptySpace(), + this.generatePropertyKey(expr.key, expr.computed), + this.generateFunctionBody(expr.value) + ]; + } + + if (expr.shorthand) { + return this.generatePropertyKey(expr.key, expr.computed); + } + + if (expr.method) { + return [ + generateMethodPrefix(expr), + this.generatePropertyKey(expr.key, expr.computed), + this.generateFunctionBody(expr.value) + ]; + } + + return [ + this.generatePropertyKey(expr.key, expr.computed), + ':' + space, + this.generateExpression(expr.value, Precedence.Assignment, E_TTT) + ]; + }, + + ObjectExpression: function (expr, precedence, flags) { + var multiline, result, fragment, that = this; + + if (!expr.properties.length) { + return '{}'; + } + multiline = expr.properties.length > 1; + + withIndent(function () { + fragment = that.generateExpression(expr.properties[0], Precedence.Sequence, E_TTT); + }); + + if (!multiline) { + // issues 4 + // Do not transform from + // dejavu.Class.declare({ + // method2: function () {} + // }); + // to + // dejavu.Class.declare({method2: function () { + // }}); + if (!hasLineTerminator(toSourceNodeWhenNeeded(fragment).toString())) { + return [ '{', space, fragment, space, '}' ]; + } + } + + withIndent(function (indent) { + var i, iz; + result = [ '{', newline, indent, fragment ]; + + if (multiline) { + result.push(',' + newline); + for (i = 1, iz = expr.properties.length; i < iz; ++i) { + result.push(indent); + result.push(that.generateExpression(expr.properties[i], Precedence.Sequence, E_TTT)); + if (i + 1 < iz) { + result.push(',' + newline); + } + } + } + }); + + if (!endsWithLineTerminator(toSourceNodeWhenNeeded(result).toString())) { + result.push(newline); + } + result.push(base); + result.push('}'); + return result; + }, + + AssignmentPattern: function(expr, precedence, flags) { + return this.generateAssignment(expr.left, expr.right, expr.operator, precedence, flags); + }, + + ObjectPattern: function (expr, precedence, flags) { + var result, i, iz, multiline, property, that = this; + if (!expr.properties.length) { + return '{}'; + } + + multiline = false; + if (expr.properties.length === 1) { + property = expr.properties[0]; + if (property.value.type !== Syntax.Identifier) { + multiline = true; + } + } else { + for (i = 0, iz = expr.properties.length; i < iz; ++i) { + property = expr.properties[i]; + if (!property.shorthand) { + multiline = true; + break; + } + } + } + result = ['{', multiline ? newline : '' ]; + + withIndent(function (indent) { + var i, iz; + for (i = 0, iz = expr.properties.length; i < iz; ++i) { + result.push(multiline ? indent : ''); + result.push(that.generateExpression(expr.properties[i], Precedence.Sequence, E_TTT)); + if (i + 1 < iz) { + result.push(',' + (multiline ? newline : space)); + } + } + }); + + if (multiline && !endsWithLineTerminator(toSourceNodeWhenNeeded(result).toString())) { + result.push(newline); + } + result.push(multiline ? base : ''); + result.push('}'); + return result; + }, + + ThisExpression: function (expr, precedence, flags) { + return 'this'; + }, + + Super: function (expr, precedence, flags) { + return 'super'; + }, + + Identifier: function (expr, precedence, flags) { + return generateIdentifier(expr); + }, + + ImportDefaultSpecifier: function (expr, precedence, flags) { + return generateIdentifier(expr.id || expr.local); + }, + + ImportNamespaceSpecifier: function (expr, precedence, flags) { + var result = ['*']; + var id = expr.id || expr.local; + if (id) { + result.push(space + 'as' + noEmptySpace() + generateIdentifier(id)); + } + return result; + }, + + ImportSpecifier: function (expr, precedence, flags) { + var imported = expr.imported; + var result = [ imported.name ]; + var local = expr.local; + if (local && local.name !== imported.name) { + result.push(noEmptySpace() + 'as' + noEmptySpace() + generateIdentifier(local)); + } + return result; + }, + + ExportSpecifier: function (expr, precedence, flags) { + var local = expr.local; + var result = [ local.name ]; + var exported = expr.exported; + if (exported && exported.name !== local.name) { + result.push(noEmptySpace() + 'as' + noEmptySpace() + generateIdentifier(exported)); + } + return result; + }, + + Literal: function (expr, precedence, flags) { + var raw; + if (expr.hasOwnProperty('raw') && parse && extra.raw) { + try { + raw = parse(expr.raw).body[0].expression; + if (raw.type === Syntax.Literal) { + if (raw.value === expr.value) { + return expr.raw; + } + } + } catch (e) { + // not use raw property + } + } + + if (expr.value === null) { + return 'null'; + } + + if (typeof expr.value === 'string') { + return escapeString(expr.value); + } + + if (typeof expr.value === 'number') { + return generateNumber(expr.value); + } + + if (typeof expr.value === 'boolean') { + return expr.value ? 'true' : 'false'; + } + + return generateRegExp(expr.value); + }, + + GeneratorExpression: function (expr, precedence, flags) { + return this.ComprehensionExpression(expr, precedence, flags); + }, + + ComprehensionExpression: function (expr, precedence, flags) { + // GeneratorExpression should be parenthesized with (...), ComprehensionExpression with [...] + // Due to https://bugzilla.mozilla.org/show_bug.cgi?id=883468 position of expr.body can differ in Spidermonkey and ES6 + + var result, i, iz, fragment, that = this; + result = (expr.type === Syntax.GeneratorExpression) ? ['('] : ['[']; + + if (extra.moz.comprehensionExpressionStartsWithAssignment) { + fragment = this.generateExpression(expr.body, Precedence.Assignment, E_TTT); + result.push(fragment); + } + + if (expr.blocks) { + withIndent(function () { + for (i = 0, iz = expr.blocks.length; i < iz; ++i) { + fragment = that.generateExpression(expr.blocks[i], Precedence.Sequence, E_TTT); + if (i > 0 || extra.moz.comprehensionExpressionStartsWithAssignment) { + result = join(result, fragment); + } else { + result.push(fragment); + } + } + }); + } + + if (expr.filter) { + result = join(result, 'if' + space); + fragment = this.generateExpression(expr.filter, Precedence.Sequence, E_TTT); + result = join(result, [ '(', fragment, ')' ]); + } + + if (!extra.moz.comprehensionExpressionStartsWithAssignment) { + fragment = this.generateExpression(expr.body, Precedence.Assignment, E_TTT); + + result = join(result, fragment); + } + + result.push((expr.type === Syntax.GeneratorExpression) ? ')' : ']'); + return result; + }, + + ComprehensionBlock: function (expr, precedence, flags) { + var fragment; + if (expr.left.type === Syntax.VariableDeclaration) { + fragment = [ + expr.left.kind, noEmptySpace(), + this.generateStatement(expr.left.declarations[0], S_FFFF) + ]; + } else { + fragment = this.generateExpression(expr.left, Precedence.Call, E_TTT); + } + + fragment = join(fragment, expr.of ? 'of' : 'in'); + fragment = join(fragment, this.generateExpression(expr.right, Precedence.Sequence, E_TTT)); + + return [ 'for' + space + '(', fragment, ')' ]; + }, + + SpreadElement: function (expr, precedence, flags) { + return [ + '...', + this.generateExpression(expr.argument, Precedence.Assignment, E_TTT) + ]; + }, + + TaggedTemplateExpression: function (expr, precedence, flags) { + var itemFlags = E_TTF; + if (!(flags & F_ALLOW_CALL)) { + itemFlags = E_TFF; + } + var result = [ + this.generateExpression(expr.tag, Precedence.Call, itemFlags), + this.generateExpression(expr.quasi, Precedence.Primary, E_FFT) + ]; + return parenthesize(result, Precedence.TaggedTemplate, precedence); + }, + + TemplateElement: function (expr, precedence, flags) { + // Don't use "cooked". Since tagged template can use raw template + // representation. So if we do so, it breaks the script semantics. + return expr.value.raw; + }, + + TemplateLiteral: function (expr, precedence, flags) { + var result, i, iz; + result = [ '`' ]; + for (i = 0, iz = expr.quasis.length; i < iz; ++i) { + result.push(this.generateExpression(expr.quasis[i], Precedence.Primary, E_TTT)); + if (i + 1 < iz) { + result.push('${' + space); + result.push(this.generateExpression(expr.expressions[i], Precedence.Sequence, E_TTT)); + result.push(space + '}'); + } + } + result.push('`'); + return result; + }, + + ModuleSpecifier: function (expr, precedence, flags) { + return this.Literal(expr, precedence, flags); + } + + }; + + merge(CodeGenerator.prototype, CodeGenerator.Expression); + + CodeGenerator.prototype.generateExpression = function (expr, precedence, flags) { + var result, type; + + type = expr.type || Syntax.Property; + + if (extra.verbatim && expr.hasOwnProperty(extra.verbatim)) { + return generateVerbatim(expr, precedence); + } + + result = this[type](expr, precedence, flags); + + + if (extra.comment) { + result = addComments(expr, result); + } + return toSourceNodeWhenNeeded(result, expr); + }; + + CodeGenerator.prototype.generateStatement = function (stmt, flags) { + var result, + fragment; + + result = this[stmt.type](stmt, flags); + + // Attach comments + + if (extra.comment) { + result = addComments(stmt, result); + } + + fragment = toSourceNodeWhenNeeded(result).toString(); + if (stmt.type === Syntax.Program && !safeConcatenation && newline === '' && fragment.charAt(fragment.length - 1) === '\n') { + result = sourceMap ? toSourceNodeWhenNeeded(result).replaceRight(/\s+$/, '') : fragment.replace(/\s+$/, ''); + } + + return toSourceNodeWhenNeeded(result, stmt); + }; + + function generateInternal(node) { + var codegen; + + codegen = new CodeGenerator(); + if (isStatement(node)) { + return codegen.generateStatement(node, S_TFFF); + } + + if (isExpression(node)) { + return codegen.generateExpression(node, Precedence.Sequence, E_TTT); + } + + throw new Error('Unknown node type: ' + node.type); + } + + function generate(node, options) { + var defaultOptions = getDefaultOptions(), result, pair; + + if (options != null) { + // Obsolete options + // + // `options.indent` + // `options.base` + // + // Instead of them, we can use `option.format.indent`. + if (typeof options.indent === 'string') { + defaultOptions.format.indent.style = options.indent; + } + if (typeof options.base === 'number') { + defaultOptions.format.indent.base = options.base; + } + options = updateDeeply(defaultOptions, options); + indent = options.format.indent.style; + if (typeof options.base === 'string') { + base = options.base; + } else { + base = stringRepeat(indent, options.format.indent.base); + } + } else { + options = defaultOptions; + indent = options.format.indent.style; + base = stringRepeat(indent, options.format.indent.base); + } + json = options.format.json; + renumber = options.format.renumber; + hexadecimal = json ? false : options.format.hexadecimal; + quotes = json ? 'double' : options.format.quotes; + escapeless = options.format.escapeless; + newline = options.format.newline; + space = options.format.space; + if (options.format.compact) { + newline = space = indent = base = ''; + } + parentheses = options.format.parentheses; + semicolons = options.format.semicolons; + safeConcatenation = options.format.safeConcatenation; + directive = options.directive; + parse = json ? null : options.parse; + sourceMap = options.sourceMap; + sourceCode = options.sourceCode; + preserveBlankLines = options.format.preserveBlankLines && sourceCode !== null; + extra = options; + + if (sourceMap) { + if (!exports.browser) { + // We assume environment is node.js + // And prevent from including source-map by browserify + SourceNode = require('source-map').SourceNode; + } else { + SourceNode = global.sourceMap.SourceNode; + } + } + + result = generateInternal(node); + + if (!sourceMap) { + pair = {code: result.toString(), map: null}; + return options.sourceMapWithCode ? pair : pair.code; + } + + + pair = result.toStringWithSourceMap({ + file: options.file, + sourceRoot: options.sourceMapRoot + }); + + if (options.sourceContent) { + pair.map.setSourceContent(options.sourceMap, + options.sourceContent); + } + + if (options.sourceMapWithCode) { + return pair; + } + + return pair.map.toString(); + } + + FORMAT_MINIFY = { + indent: { + style: '', + base: 0 + }, + renumber: true, + hexadecimal: true, + quotes: 'auto', + escapeless: true, + compact: true, + parentheses: false, + semicolons: false + }; + + FORMAT_DEFAULTS = getDefaultOptions().format; + + exports.version = require('./package.json').version; + exports.generate = generate; + exports.attachComments = estraverse.attachComments; + exports.Precedence = updateDeeply({}, Precedence); + exports.browser = false; + exports.FORMAT_MINIFY = FORMAT_MINIFY; + exports.FORMAT_DEFAULTS = FORMAT_DEFAULTS; +}()); +/* vim: set sw=4 ts=4 et tw=80 : */ + +}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {}) +},{"./package.json":38,"estraverse":45,"esutils":49,"source-map":51}],38:[function(require,module,exports){ +module.exports={ + "_args": [ + [ + { + "raw": "escodegen@1.8.0", + "scope": null, + "escapedName": "escodegen", + "name": "escodegen", + "rawSpec": "1.8.0", + "spec": "1.8.0", + "type": "version" + }, + "/private/tmp/node_modules/eval-sanitizer" + ] + ], + "_from": "escodegen@1.8.0", + "_id": "escodegen@1.8.0", + "_inCache": true, + "_location": "/escodegen", + "_nodeVersion": "4.1.1", + "_npmUser": { + "name": "constellation", + "email": "utatane.tea@gmail.com" + }, + "_npmVersion": "2.14.4", + "_phantomChildren": {}, + "_requested": { + "raw": "escodegen@1.8.0", + "scope": null, + "escapedName": "escodegen", + "name": "escodegen", + "rawSpec": "1.8.0", + "spec": "1.8.0", + "type": "version" + }, + "_requiredBy": [ + "/eval-sanitizer" + ], + "_resolved": "https://registry.npmjs.org/escodegen/-/escodegen-1.8.0.tgz", + "_shasum": "b246aae829ce73d59e2c55727359edd1c130a81b", + "_shrinkwrap": null, + "_spec": "escodegen@1.8.0", + "_where": "/private/tmp/node_modules/eval-sanitizer", + "bin": { + "esgenerate": "./bin/esgenerate.js", + "escodegen": "./bin/escodegen.js" + }, + "bugs": { + "url": "https://github.com/estools/escodegen/issues" + }, + "dependencies": { + "esprima": "^2.7.1", + "estraverse": "^1.9.1", + "esutils": "^2.0.2", + "optionator": "^0.8.1", + "source-map": "~0.2.0" + }, + "description": "ECMAScript code generator", + "devDependencies": { + "acorn-6to5": "^0.11.1-25", + "bluebird": "^2.3.11", + "bower-registry-client": "^0.2.1", + "chai": "^1.10.0", + "commonjs-everywhere": "^0.9.7", + "gulp": "^3.8.10", + "gulp-eslint": "^0.2.0", + "gulp-mocha": "^2.0.0", + "semver": "^5.1.0" + }, + "directories": {}, + "dist": { + "shasum": "b246aae829ce73d59e2c55727359edd1c130a81b", + "tarball": "https://registry.npmjs.org/escodegen/-/escodegen-1.8.0.tgz" + }, + "engines": { + "node": ">=0.12.0" + }, + "files": [ + "LICENSE.BSD", + "LICENSE.source-map", + "README.md", + "bin", + "escodegen.js", + "package.json" + ], + "gitHead": "0e8280aa061a0dbefb32d277a05015baa7f3e7f2", + "homepage": "http://github.com/estools/escodegen", + "license": "BSD-2-Clause", + "main": "escodegen.js", + "maintainers": [ + { + "name": "constellation", + "email": "utatane.tea@gmail.com" + }, + { + "name": "michaelficarra", + "email": "npm@michael.ficarra.me" + } + ], + "name": "escodegen", + "optionalDependencies": { + "source-map": "~0.2.0" + }, + "readme": "ERROR: No README data found!", + "repository": { + "type": "git", + "url": "git+ssh://git@github.com/estools/escodegen.git" + }, + "scripts": { + "build": "cjsify -a path: tools/entry-point.js > escodegen.browser.js", + "build-min": "cjsify -ma path: tools/entry-point.js > escodegen.browser.min.js", + "lint": "gulp lint", + "release": "node tools/release.js", + "test": "gulp travis", + "unit-test": "gulp test" + }, + "version": "1.8.0" +} + +},{}],39:[function(require,module,exports){ +'use strict'; + +var from = require('es5-ext/array/from') + , primitiveSet = require('es5-ext/object/primitive-set') + , value = require('es5-ext/object/valid-value') + , callable = require('es5-ext/object/valid-callable') + , d = require('d') + , eolSet = require('./lib/ws-eol') + , wsSet = require('./lib/ws') + + , hasOwnProperty = Object.prototype.hasOwnProperty + , preRegExpSet = primitiveSet.apply(null, from(';{=([,<>+-*/%&|^!~?:}')) + , nonNameSet = primitiveSet.apply(null, from(';{=([,<>+-*/%&|^!~?:})].')) + + , move, startCollect, endCollect, collectNest + , $ws, $common, $string, $comment, $multiComment, $regExp + + , i, char, line, columnIndex, afterWs, previousChar + , nest, nestedTokens, results + , userCode, userTriggerChar, isUserTriggerOperatorChar, userCallback + + , quote + , collectIndex, data, nestRelease; + +move = function (j) { + if (!char) return; + if (i >= j) return; + while (i !== j) { + if (!char) return; + if (hasOwnProperty.call(wsSet, char)) { + if (hasOwnProperty.call(eolSet, char)) { + columnIndex = i; + ++line; + } + } else { + previousChar = char; + } + char = userCode[++i]; + } +}; + +startCollect = function (oldNestRelease) { + if (collectIndex != null) nestedTokens.push([data, collectIndex, oldNestRelease]); + data = { point: i + 1, line: line, column: i + 1 - columnIndex }; + collectIndex = i; +}; + +endCollect = function () { + var previous; + data.raw = userCode.slice(collectIndex, i); + results.push(data); + if (nestedTokens.length) { + previous = nestedTokens.pop(); + data = previous[0]; + collectIndex = previous[1]; + nestRelease = previous[2]; + return; + } + data = null; + collectIndex = null; + nestRelease = null; +}; + +collectNest = function () { + var old = nestRelease; + nestRelease = nest; + ++nest; + move(i + 1); + startCollect(old); + return $ws; +}; + +$common = function () { + if ((char === '\'') || (char === '"')) { + quote = char; + char = userCode[++i]; + return $string; + } + if ((char === '(') || (char === '{') || (char === '[')) { + ++nest; + } else if ((char === ')') || (char === '}') || (char === ']')) { + if (nestRelease === --nest) endCollect(); + } else if (char === '/') { + if (hasOwnProperty.call(preRegExpSet, previousChar)) { + char = userCode[++i]; + return $regExp; + } + } + if ((char !== userTriggerChar) || (!isUserTriggerOperatorChar && previousChar && !afterWs && + !hasOwnProperty.call(nonNameSet, previousChar))) { + previousChar = char; + char = userCode[++i]; + return $ws; + } + + return userCallback(i, previousChar, nest); +}; + +$comment = function () { + while (true) { + if (!char) return; + if (hasOwnProperty.call(eolSet, char)) { + columnIndex = i + 1; + ++line; + return; + } + char = userCode[++i]; + } +}; + +$multiComment = function () { + while (true) { + if (!char) return; + if (char === '*') { + char = userCode[++i]; + if (char === '/') return; + continue; + } + if (hasOwnProperty.call(eolSet, char)) { + columnIndex = i + 1; + ++line; + } + char = userCode[++i]; + } +}; + +$ws = function () { + var next; + afterWs = false; + while (true) { + if (!char) return; + if (hasOwnProperty.call(wsSet, char)) { + afterWs = true; + if (hasOwnProperty.call(eolSet, char)) { + columnIndex = i + 1; + ++line; + } + } else if (char === '/') { + next = userCode[i + 1]; + if (next === '/') { + char = userCode[i += 2]; + afterWs = true; + $comment(); + } else if (next === '*') { + char = userCode[i += 2]; + afterWs = true; + $multiComment(); + } else { + break; + } + } else { + break; + } + char = userCode[++i]; + } + return $common; +}; + +$string = function () { + while (true) { + if (!char) return; + if (char === quote) { + char = userCode[++i]; + previousChar = quote; + return $ws; + } + if (char === '\\') { + if (hasOwnProperty.call(eolSet, userCode[++i])) { + columnIndex = i + 1; + ++line; + } + } + char = userCode[++i]; + } +}; + +$regExp = function () { + while (true) { + if (!char) return; + if (char === '/') { + previousChar = '/'; + char = userCode[++i]; + return $ws; + } + if (char === '\\') ++i; + char = userCode[++i]; + } +}; + +module.exports = exports = function (code, triggerChar, callback) { + var state; + + userCode = String(value(code)); + userTriggerChar = String(value(triggerChar)); + if (userTriggerChar.length !== 1) { + throw new TypeError(userTriggerChar + " should be one character long string"); + } + userCallback = callable(callback); + isUserTriggerOperatorChar = hasOwnProperty.call(nonNameSet, userTriggerChar); + i = 0; + char = userCode[i]; + line = 1; + columnIndex = 0; + afterWs = false; + previousChar = null; + nest = 0; + nestedTokens = []; + results = []; + exports.forceStop = false; + state = $ws; + while (state) state = state(); + return results; +}; + +Object.defineProperties(exports, { + $ws: d($ws), + $common: d($common), + collectNest: d(collectNest), + move: d(move), + index: d.gs(function () { return i; }), + line: d.gs(function () { return line; }), + nest: d.gs(function () { return nest; }), + columnIndex: d.gs(function () { return columnIndex; }), + next: d(function (step) { + if (!char) return; + move(i + (step || 1)); + return $ws(); + }), + resume: d(function () { return $common; }) +}); + +},{"./lib/ws":42,"./lib/ws-eol":40,"d":43,"es5-ext/array/from":4,"es5-ext/object/primitive-set":23,"es5-ext/object/valid-callable":24,"es5-ext/object/valid-value":25}],40:[function(require,module,exports){ +'use strict'; + +var from = require('es5-ext/array/from') + , primitiveSet = require('es5-ext/object/primitive-set'); + +module.exports = primitiveSet.apply(null, from('\n\r\u2028\u2029')); + +},{"es5-ext/array/from":4,"es5-ext/object/primitive-set":23}],41:[function(require,module,exports){ +'use strict'; + +var from = require('es5-ext/array/from') + , primitiveSet = require('es5-ext/object/primitive-set'); + +module.exports = primitiveSet.apply(null, from(' \f\t\v​\u00a0\u1680​\u180e' + + '\u2000​\u2001\u2002​\u2003\u2004​\u2005\u2006​\u2007\u2008​\u2009\u200a' + + '​​​\u202f\u205f​\u3000')); + +},{"es5-ext/array/from":4,"es5-ext/object/primitive-set":23}],42:[function(require,module,exports){ +'use strict'; + +var primitiveSet = require('es5-ext/object/primitive-set') + , eol = require('./ws-eol') + , inline = require('./ws-inline'); + +module.exports = primitiveSet.apply(null, + Object.keys(eol).concat(Object.keys(inline))); + +},{"./ws-eol":40,"./ws-inline":41,"es5-ext/object/primitive-set":23}],43:[function(require,module,exports){ +arguments[4][3][0].apply(exports,arguments) +},{"dup":3,"es5-ext/object/assign":15,"es5-ext/object/is-callable":18,"es5-ext/object/normalize-options":22,"es5-ext/string/#/contains":26}],44:[function(require,module,exports){ +/* + Copyright (c) jQuery Foundation, Inc. and Contributors, All Rights Reserved. + + Redistribution and use in source and binary forms, with or without + modification, are permitted provided that the following conditions are met: + + * Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. + * Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in the + documentation and/or other materials provided with the distribution. + + THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + ARE DISCLAIMED. IN NO EVENT SHALL BE LIABLE FOR ANY + DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +*/ + +(function (root, factory) { + 'use strict'; + + // Universal Module Definition (UMD) to support AMD, CommonJS/Node.js, + // Rhino, and plain browser loading. + + /* istanbul ignore next */ + if (typeof define === 'function' && define.amd) { + define(['exports'], factory); + } else if (typeof exports !== 'undefined') { + factory(exports); + } else { + factory((root.esprima = {})); + } +}(this, function (exports) { + 'use strict'; + + var Token, + TokenName, + FnExprTokens, + Syntax, + PlaceHolders, + Messages, + Regex, + source, + strict, + index, + lineNumber, + lineStart, + hasLineTerminator, + lastIndex, + lastLineNumber, + lastLineStart, + startIndex, + startLineNumber, + startLineStart, + scanning, + length, + lookahead, + state, + extra, + isBindingElement, + isAssignmentTarget, + firstCoverInitializedNameError; + + Token = { + BooleanLiteral: 1, + EOF: 2, + Identifier: 3, + Keyword: 4, + NullLiteral: 5, + NumericLiteral: 6, + Punctuator: 7, + StringLiteral: 8, + RegularExpression: 9, + Template: 10 + }; + + TokenName = {}; + TokenName[Token.BooleanLiteral] = 'Boolean'; + TokenName[Token.EOF] = ''; + TokenName[Token.Identifier] = 'Identifier'; + TokenName[Token.Keyword] = 'Keyword'; + TokenName[Token.NullLiteral] = 'Null'; + TokenName[Token.NumericLiteral] = 'Numeric'; + TokenName[Token.Punctuator] = 'Punctuator'; + TokenName[Token.StringLiteral] = 'String'; + TokenName[Token.RegularExpression] = 'RegularExpression'; + TokenName[Token.Template] = 'Template'; + + // A function following one of those tokens is an expression. + FnExprTokens = ['(', '{', '[', 'in', 'typeof', 'instanceof', 'new', + 'return', 'case', 'delete', 'throw', 'void', + // assignment operators + '=', '+=', '-=', '*=', '/=', '%=', '<<=', '>>=', '>>>=', + '&=', '|=', '^=', ',', + // binary/unary operators + '+', '-', '*', '/', '%', '++', '--', '<<', '>>', '>>>', '&', + '|', '^', '!', '~', '&&', '||', '?', ':', '===', '==', '>=', + '<=', '<', '>', '!=', '!==']; + + Syntax = { + AssignmentExpression: 'AssignmentExpression', + AssignmentPattern: 'AssignmentPattern', + ArrayExpression: 'ArrayExpression', + ArrayPattern: 'ArrayPattern', + ArrowFunctionExpression: 'ArrowFunctionExpression', + BlockStatement: 'BlockStatement', + BinaryExpression: 'BinaryExpression', + BreakStatement: 'BreakStatement', + CallExpression: 'CallExpression', + CatchClause: 'CatchClause', + ClassBody: 'ClassBody', + ClassDeclaration: 'ClassDeclaration', + ClassExpression: 'ClassExpression', + ConditionalExpression: 'ConditionalExpression', + ContinueStatement: 'ContinueStatement', + DoWhileStatement: 'DoWhileStatement', + DebuggerStatement: 'DebuggerStatement', + EmptyStatement: 'EmptyStatement', + ExportAllDeclaration: 'ExportAllDeclaration', + ExportDefaultDeclaration: 'ExportDefaultDeclaration', + ExportNamedDeclaration: 'ExportNamedDeclaration', + ExportSpecifier: 'ExportSpecifier', + ExpressionStatement: 'ExpressionStatement', + ForStatement: 'ForStatement', + ForOfStatement: 'ForOfStatement', + ForInStatement: 'ForInStatement', + FunctionDeclaration: 'FunctionDeclaration', + FunctionExpression: 'FunctionExpression', + Identifier: 'Identifier', + IfStatement: 'IfStatement', + ImportDeclaration: 'ImportDeclaration', + ImportDefaultSpecifier: 'ImportDefaultSpecifier', + ImportNamespaceSpecifier: 'ImportNamespaceSpecifier', + ImportSpecifier: 'ImportSpecifier', + Literal: 'Literal', + LabeledStatement: 'LabeledStatement', + LogicalExpression: 'LogicalExpression', + MemberExpression: 'MemberExpression', + MetaProperty: 'MetaProperty', + MethodDefinition: 'MethodDefinition', + NewExpression: 'NewExpression', + ObjectExpression: 'ObjectExpression', + ObjectPattern: 'ObjectPattern', + Program: 'Program', + Property: 'Property', + RestElement: 'RestElement', + ReturnStatement: 'ReturnStatement', + SequenceExpression: 'SequenceExpression', + SpreadElement: 'SpreadElement', + Super: 'Super', + SwitchCase: 'SwitchCase', + SwitchStatement: 'SwitchStatement', + TaggedTemplateExpression: 'TaggedTemplateExpression', + TemplateElement: 'TemplateElement', + TemplateLiteral: 'TemplateLiteral', + ThisExpression: 'ThisExpression', + ThrowStatement: 'ThrowStatement', + TryStatement: 'TryStatement', + UnaryExpression: 'UnaryExpression', + UpdateExpression: 'UpdateExpression', + VariableDeclaration: 'VariableDeclaration', + VariableDeclarator: 'VariableDeclarator', + WhileStatement: 'WhileStatement', + WithStatement: 'WithStatement', + YieldExpression: 'YieldExpression' + }; + + PlaceHolders = { + ArrowParameterPlaceHolder: 'ArrowParameterPlaceHolder' + }; + + // Error messages should be identical to V8. + Messages = { + UnexpectedToken: 'Unexpected token %0', + UnexpectedNumber: 'Unexpected number', + UnexpectedString: 'Unexpected string', + UnexpectedIdentifier: 'Unexpected identifier', + UnexpectedReserved: 'Unexpected reserved word', + UnexpectedTemplate: 'Unexpected quasi %0', + UnexpectedEOS: 'Unexpected end of input', + NewlineAfterThrow: 'Illegal newline after throw', + InvalidRegExp: 'Invalid regular expression', + UnterminatedRegExp: 'Invalid regular expression: missing /', + InvalidLHSInAssignment: 'Invalid left-hand side in assignment', + InvalidLHSInForIn: 'Invalid left-hand side in for-in', + InvalidLHSInForLoop: 'Invalid left-hand side in for-loop', + MultipleDefaultsInSwitch: 'More than one default clause in switch statement', + NoCatchOrFinally: 'Missing catch or finally after try', + UnknownLabel: 'Undefined label \'%0\'', + Redeclaration: '%0 \'%1\' has already been declared', + IllegalContinue: 'Illegal continue statement', + IllegalBreak: 'Illegal break statement', + IllegalReturn: 'Illegal return statement', + StrictModeWith: 'Strict mode code may not include a with statement', + StrictCatchVariable: 'Catch variable may not be eval or arguments in strict mode', + StrictVarName: 'Variable name may not be eval or arguments in strict mode', + StrictParamName: 'Parameter name eval or arguments is not allowed in strict mode', + StrictParamDupe: 'Strict mode function may not have duplicate parameter names', + StrictFunctionName: 'Function name may not be eval or arguments in strict mode', + StrictOctalLiteral: 'Octal literals are not allowed in strict mode.', + StrictDelete: 'Delete of an unqualified identifier in strict mode.', + StrictLHSAssignment: 'Assignment to eval or arguments is not allowed in strict mode', + StrictLHSPostfix: 'Postfix increment/decrement may not have eval or arguments operand in strict mode', + StrictLHSPrefix: 'Prefix increment/decrement may not have eval or arguments operand in strict mode', + StrictReservedWord: 'Use of future reserved word in strict mode', + TemplateOctalLiteral: 'Octal literals are not allowed in template strings.', + ParameterAfterRestParameter: 'Rest parameter must be last formal parameter', + DefaultRestParameter: 'Unexpected token =', + ObjectPatternAsRestParameter: 'Unexpected token {', + DuplicateProtoProperty: 'Duplicate __proto__ fields are not allowed in object literals', + ConstructorSpecialMethod: 'Class constructor may not be an accessor', + DuplicateConstructor: 'A class may only have one constructor', + StaticPrototype: 'Classes may not have static property named prototype', + MissingFromClause: 'Unexpected token', + NoAsAfterImportNamespace: 'Unexpected token', + InvalidModuleSpecifier: 'Unexpected token', + IllegalImportDeclaration: 'Unexpected token', + IllegalExportDeclaration: 'Unexpected token', + DuplicateBinding: 'Duplicate binding %0' + }; + + // See also tools/generate-unicode-regex.js. + Regex = { + // ECMAScript 6/Unicode v7.0.0 NonAsciiIdentifierStart: + NonAsciiIdentifierStart: /[\xAA\xB5\xBA\xC0-\xD6\xD8-\xF6\xF8-\u02C1\u02C6-\u02D1\u02E0-\u02E4\u02EC\u02EE\u0370-\u0374\u0376\u0377\u037A-\u037D\u037F\u0386\u0388-\u038A\u038C\u038E-\u03A1\u03A3-\u03F5\u03F7-\u0481\u048A-\u052F\u0531-\u0556\u0559\u0561-\u0587\u05D0-\u05EA\u05F0-\u05F2\u0620-\u064A\u066E\u066F\u0671-\u06D3\u06D5\u06E5\u06E6\u06EE\u06EF\u06FA-\u06FC\u06FF\u0710\u0712-\u072F\u074D-\u07A5\u07B1\u07CA-\u07EA\u07F4\u07F5\u07FA\u0800-\u0815\u081A\u0824\u0828\u0840-\u0858\u08A0-\u08B2\u0904-\u0939\u093D\u0950\u0958-\u0961\u0971-\u0980\u0985-\u098C\u098F\u0990\u0993-\u09A8\u09AA-\u09B0\u09B2\u09B6-\u09B9\u09BD\u09CE\u09DC\u09DD\u09DF-\u09E1\u09F0\u09F1\u0A05-\u0A0A\u0A0F\u0A10\u0A13-\u0A28\u0A2A-\u0A30\u0A32\u0A33\u0A35\u0A36\u0A38\u0A39\u0A59-\u0A5C\u0A5E\u0A72-\u0A74\u0A85-\u0A8D\u0A8F-\u0A91\u0A93-\u0AA8\u0AAA-\u0AB0\u0AB2\u0AB3\u0AB5-\u0AB9\u0ABD\u0AD0\u0AE0\u0AE1\u0B05-\u0B0C\u0B0F\u0B10\u0B13-\u0B28\u0B2A-\u0B30\u0B32\u0B33\u0B35-\u0B39\u0B3D\u0B5C\u0B5D\u0B5F-\u0B61\u0B71\u0B83\u0B85-\u0B8A\u0B8E-\u0B90\u0B92-\u0B95\u0B99\u0B9A\u0B9C\u0B9E\u0B9F\u0BA3\u0BA4\u0BA8-\u0BAA\u0BAE-\u0BB9\u0BD0\u0C05-\u0C0C\u0C0E-\u0C10\u0C12-\u0C28\u0C2A-\u0C39\u0C3D\u0C58\u0C59\u0C60\u0C61\u0C85-\u0C8C\u0C8E-\u0C90\u0C92-\u0CA8\u0CAA-\u0CB3\u0CB5-\u0CB9\u0CBD\u0CDE\u0CE0\u0CE1\u0CF1\u0CF2\u0D05-\u0D0C\u0D0E-\u0D10\u0D12-\u0D3A\u0D3D\u0D4E\u0D60\u0D61\u0D7A-\u0D7F\u0D85-\u0D96\u0D9A-\u0DB1\u0DB3-\u0DBB\u0DBD\u0DC0-\u0DC6\u0E01-\u0E30\u0E32\u0E33\u0E40-\u0E46\u0E81\u0E82\u0E84\u0E87\u0E88\u0E8A\u0E8D\u0E94-\u0E97\u0E99-\u0E9F\u0EA1-\u0EA3\u0EA5\u0EA7\u0EAA\u0EAB\u0EAD-\u0EB0\u0EB2\u0EB3\u0EBD\u0EC0-\u0EC4\u0EC6\u0EDC-\u0EDF\u0F00\u0F40-\u0F47\u0F49-\u0F6C\u0F88-\u0F8C\u1000-\u102A\u103F\u1050-\u1055\u105A-\u105D\u1061\u1065\u1066\u106E-\u1070\u1075-\u1081\u108E\u10A0-\u10C5\u10C7\u10CD\u10D0-\u10FA\u10FC-\u1248\u124A-\u124D\u1250-\u1256\u1258\u125A-\u125D\u1260-\u1288\u128A-\u128D\u1290-\u12B0\u12B2-\u12B5\u12B8-\u12BE\u12C0\u12C2-\u12C5\u12C8-\u12D6\u12D8-\u1310\u1312-\u1315\u1318-\u135A\u1380-\u138F\u13A0-\u13F4\u1401-\u166C\u166F-\u167F\u1681-\u169A\u16A0-\u16EA\u16EE-\u16F8\u1700-\u170C\u170E-\u1711\u1720-\u1731\u1740-\u1751\u1760-\u176C\u176E-\u1770\u1780-\u17B3\u17D7\u17DC\u1820-\u1877\u1880-\u18A8\u18AA\u18B0-\u18F5\u1900-\u191E\u1950-\u196D\u1970-\u1974\u1980-\u19AB\u19C1-\u19C7\u1A00-\u1A16\u1A20-\u1A54\u1AA7\u1B05-\u1B33\u1B45-\u1B4B\u1B83-\u1BA0\u1BAE\u1BAF\u1BBA-\u1BE5\u1C00-\u1C23\u1C4D-\u1C4F\u1C5A-\u1C7D\u1CE9-\u1CEC\u1CEE-\u1CF1\u1CF5\u1CF6\u1D00-\u1DBF\u1E00-\u1F15\u1F18-\u1F1D\u1F20-\u1F45\u1F48-\u1F4D\u1F50-\u1F57\u1F59\u1F5B\u1F5D\u1F5F-\u1F7D\u1F80-\u1FB4\u1FB6-\u1FBC\u1FBE\u1FC2-\u1FC4\u1FC6-\u1FCC\u1FD0-\u1FD3\u1FD6-\u1FDB\u1FE0-\u1FEC\u1FF2-\u1FF4\u1FF6-\u1FFC\u2071\u207F\u2090-\u209C\u2102\u2107\u210A-\u2113\u2115\u2118-\u211D\u2124\u2126\u2128\u212A-\u2139\u213C-\u213F\u2145-\u2149\u214E\u2160-\u2188\u2C00-\u2C2E\u2C30-\u2C5E\u2C60-\u2CE4\u2CEB-\u2CEE\u2CF2\u2CF3\u2D00-\u2D25\u2D27\u2D2D\u2D30-\u2D67\u2D6F\u2D80-\u2D96\u2DA0-\u2DA6\u2DA8-\u2DAE\u2DB0-\u2DB6\u2DB8-\u2DBE\u2DC0-\u2DC6\u2DC8-\u2DCE\u2DD0-\u2DD6\u2DD8-\u2DDE\u3005-\u3007\u3021-\u3029\u3031-\u3035\u3038-\u303C\u3041-\u3096\u309B-\u309F\u30A1-\u30FA\u30FC-\u30FF\u3105-\u312D\u3131-\u318E\u31A0-\u31BA\u31F0-\u31FF\u3400-\u4DB5\u4E00-\u9FCC\uA000-\uA48C\uA4D0-\uA4FD\uA500-\uA60C\uA610-\uA61F\uA62A\uA62B\uA640-\uA66E\uA67F-\uA69D\uA6A0-\uA6EF\uA717-\uA71F\uA722-\uA788\uA78B-\uA78E\uA790-\uA7AD\uA7B0\uA7B1\uA7F7-\uA801\uA803-\uA805\uA807-\uA80A\uA80C-\uA822\uA840-\uA873\uA882-\uA8B3\uA8F2-\uA8F7\uA8FB\uA90A-\uA925\uA930-\uA946\uA960-\uA97C\uA984-\uA9B2\uA9CF\uA9E0-\uA9E4\uA9E6-\uA9EF\uA9FA-\uA9FE\uAA00-\uAA28\uAA40-\uAA42\uAA44-\uAA4B\uAA60-\uAA76\uAA7A\uAA7E-\uAAAF\uAAB1\uAAB5\uAAB6\uAAB9-\uAABD\uAAC0\uAAC2\uAADB-\uAADD\uAAE0-\uAAEA\uAAF2-\uAAF4\uAB01-\uAB06\uAB09-\uAB0E\uAB11-\uAB16\uAB20-\uAB26\uAB28-\uAB2E\uAB30-\uAB5A\uAB5C-\uAB5F\uAB64\uAB65\uABC0-\uABE2\uAC00-\uD7A3\uD7B0-\uD7C6\uD7CB-\uD7FB\uF900-\uFA6D\uFA70-\uFAD9\uFB00-\uFB06\uFB13-\uFB17\uFB1D\uFB1F-\uFB28\uFB2A-\uFB36\uFB38-\uFB3C\uFB3E\uFB40\uFB41\uFB43\uFB44\uFB46-\uFBB1\uFBD3-\uFD3D\uFD50-\uFD8F\uFD92-\uFDC7\uFDF0-\uFDFB\uFE70-\uFE74\uFE76-\uFEFC\uFF21-\uFF3A\uFF41-\uFF5A\uFF66-\uFFBE\uFFC2-\uFFC7\uFFCA-\uFFCF\uFFD2-\uFFD7\uFFDA-\uFFDC]|\uD800[\uDC00-\uDC0B\uDC0D-\uDC26\uDC28-\uDC3A\uDC3C\uDC3D\uDC3F-\uDC4D\uDC50-\uDC5D\uDC80-\uDCFA\uDD40-\uDD74\uDE80-\uDE9C\uDEA0-\uDED0\uDF00-\uDF1F\uDF30-\uDF4A\uDF50-\uDF75\uDF80-\uDF9D\uDFA0-\uDFC3\uDFC8-\uDFCF\uDFD1-\uDFD5]|\uD801[\uDC00-\uDC9D\uDD00-\uDD27\uDD30-\uDD63\uDE00-\uDF36\uDF40-\uDF55\uDF60-\uDF67]|\uD802[\uDC00-\uDC05\uDC08\uDC0A-\uDC35\uDC37\uDC38\uDC3C\uDC3F-\uDC55\uDC60-\uDC76\uDC80-\uDC9E\uDD00-\uDD15\uDD20-\uDD39\uDD80-\uDDB7\uDDBE\uDDBF\uDE00\uDE10-\uDE13\uDE15-\uDE17\uDE19-\uDE33\uDE60-\uDE7C\uDE80-\uDE9C\uDEC0-\uDEC7\uDEC9-\uDEE4\uDF00-\uDF35\uDF40-\uDF55\uDF60-\uDF72\uDF80-\uDF91]|\uD803[\uDC00-\uDC48]|\uD804[\uDC03-\uDC37\uDC83-\uDCAF\uDCD0-\uDCE8\uDD03-\uDD26\uDD50-\uDD72\uDD76\uDD83-\uDDB2\uDDC1-\uDDC4\uDDDA\uDE00-\uDE11\uDE13-\uDE2B\uDEB0-\uDEDE\uDF05-\uDF0C\uDF0F\uDF10\uDF13-\uDF28\uDF2A-\uDF30\uDF32\uDF33\uDF35-\uDF39\uDF3D\uDF5D-\uDF61]|\uD805[\uDC80-\uDCAF\uDCC4\uDCC5\uDCC7\uDD80-\uDDAE\uDE00-\uDE2F\uDE44\uDE80-\uDEAA]|\uD806[\uDCA0-\uDCDF\uDCFF\uDEC0-\uDEF8]|\uD808[\uDC00-\uDF98]|\uD809[\uDC00-\uDC6E]|[\uD80C\uD840-\uD868\uD86A-\uD86C][\uDC00-\uDFFF]|\uD80D[\uDC00-\uDC2E]|\uD81A[\uDC00-\uDE38\uDE40-\uDE5E\uDED0-\uDEED\uDF00-\uDF2F\uDF40-\uDF43\uDF63-\uDF77\uDF7D-\uDF8F]|\uD81B[\uDF00-\uDF44\uDF50\uDF93-\uDF9F]|\uD82C[\uDC00\uDC01]|\uD82F[\uDC00-\uDC6A\uDC70-\uDC7C\uDC80-\uDC88\uDC90-\uDC99]|\uD835[\uDC00-\uDC54\uDC56-\uDC9C\uDC9E\uDC9F\uDCA2\uDCA5\uDCA6\uDCA9-\uDCAC\uDCAE-\uDCB9\uDCBB\uDCBD-\uDCC3\uDCC5-\uDD05\uDD07-\uDD0A\uDD0D-\uDD14\uDD16-\uDD1C\uDD1E-\uDD39\uDD3B-\uDD3E\uDD40-\uDD44\uDD46\uDD4A-\uDD50\uDD52-\uDEA5\uDEA8-\uDEC0\uDEC2-\uDEDA\uDEDC-\uDEFA\uDEFC-\uDF14\uDF16-\uDF34\uDF36-\uDF4E\uDF50-\uDF6E\uDF70-\uDF88\uDF8A-\uDFA8\uDFAA-\uDFC2\uDFC4-\uDFCB]|\uD83A[\uDC00-\uDCC4]|\uD83B[\uDE00-\uDE03\uDE05-\uDE1F\uDE21\uDE22\uDE24\uDE27\uDE29-\uDE32\uDE34-\uDE37\uDE39\uDE3B\uDE42\uDE47\uDE49\uDE4B\uDE4D-\uDE4F\uDE51\uDE52\uDE54\uDE57\uDE59\uDE5B\uDE5D\uDE5F\uDE61\uDE62\uDE64\uDE67-\uDE6A\uDE6C-\uDE72\uDE74-\uDE77\uDE79-\uDE7C\uDE7E\uDE80-\uDE89\uDE8B-\uDE9B\uDEA1-\uDEA3\uDEA5-\uDEA9\uDEAB-\uDEBB]|\uD869[\uDC00-\uDED6\uDF00-\uDFFF]|\uD86D[\uDC00-\uDF34\uDF40-\uDFFF]|\uD86E[\uDC00-\uDC1D]|\uD87E[\uDC00-\uDE1D]/, + + // ECMAScript 6/Unicode v7.0.0 NonAsciiIdentifierPart: + NonAsciiIdentifierPart: /[\xAA\xB5\xB7\xBA\xC0-\xD6\xD8-\xF6\xF8-\u02C1\u02C6-\u02D1\u02E0-\u02E4\u02EC\u02EE\u0300-\u0374\u0376\u0377\u037A-\u037D\u037F\u0386-\u038A\u038C\u038E-\u03A1\u03A3-\u03F5\u03F7-\u0481\u0483-\u0487\u048A-\u052F\u0531-\u0556\u0559\u0561-\u0587\u0591-\u05BD\u05BF\u05C1\u05C2\u05C4\u05C5\u05C7\u05D0-\u05EA\u05F0-\u05F2\u0610-\u061A\u0620-\u0669\u066E-\u06D3\u06D5-\u06DC\u06DF-\u06E8\u06EA-\u06FC\u06FF\u0710-\u074A\u074D-\u07B1\u07C0-\u07F5\u07FA\u0800-\u082D\u0840-\u085B\u08A0-\u08B2\u08E4-\u0963\u0966-\u096F\u0971-\u0983\u0985-\u098C\u098F\u0990\u0993-\u09A8\u09AA-\u09B0\u09B2\u09B6-\u09B9\u09BC-\u09C4\u09C7\u09C8\u09CB-\u09CE\u09D7\u09DC\u09DD\u09DF-\u09E3\u09E6-\u09F1\u0A01-\u0A03\u0A05-\u0A0A\u0A0F\u0A10\u0A13-\u0A28\u0A2A-\u0A30\u0A32\u0A33\u0A35\u0A36\u0A38\u0A39\u0A3C\u0A3E-\u0A42\u0A47\u0A48\u0A4B-\u0A4D\u0A51\u0A59-\u0A5C\u0A5E\u0A66-\u0A75\u0A81-\u0A83\u0A85-\u0A8D\u0A8F-\u0A91\u0A93-\u0AA8\u0AAA-\u0AB0\u0AB2\u0AB3\u0AB5-\u0AB9\u0ABC-\u0AC5\u0AC7-\u0AC9\u0ACB-\u0ACD\u0AD0\u0AE0-\u0AE3\u0AE6-\u0AEF\u0B01-\u0B03\u0B05-\u0B0C\u0B0F\u0B10\u0B13-\u0B28\u0B2A-\u0B30\u0B32\u0B33\u0B35-\u0B39\u0B3C-\u0B44\u0B47\u0B48\u0B4B-\u0B4D\u0B56\u0B57\u0B5C\u0B5D\u0B5F-\u0B63\u0B66-\u0B6F\u0B71\u0B82\u0B83\u0B85-\u0B8A\u0B8E-\u0B90\u0B92-\u0B95\u0B99\u0B9A\u0B9C\u0B9E\u0B9F\u0BA3\u0BA4\u0BA8-\u0BAA\u0BAE-\u0BB9\u0BBE-\u0BC2\u0BC6-\u0BC8\u0BCA-\u0BCD\u0BD0\u0BD7\u0BE6-\u0BEF\u0C00-\u0C03\u0C05-\u0C0C\u0C0E-\u0C10\u0C12-\u0C28\u0C2A-\u0C39\u0C3D-\u0C44\u0C46-\u0C48\u0C4A-\u0C4D\u0C55\u0C56\u0C58\u0C59\u0C60-\u0C63\u0C66-\u0C6F\u0C81-\u0C83\u0C85-\u0C8C\u0C8E-\u0C90\u0C92-\u0CA8\u0CAA-\u0CB3\u0CB5-\u0CB9\u0CBC-\u0CC4\u0CC6-\u0CC8\u0CCA-\u0CCD\u0CD5\u0CD6\u0CDE\u0CE0-\u0CE3\u0CE6-\u0CEF\u0CF1\u0CF2\u0D01-\u0D03\u0D05-\u0D0C\u0D0E-\u0D10\u0D12-\u0D3A\u0D3D-\u0D44\u0D46-\u0D48\u0D4A-\u0D4E\u0D57\u0D60-\u0D63\u0D66-\u0D6F\u0D7A-\u0D7F\u0D82\u0D83\u0D85-\u0D96\u0D9A-\u0DB1\u0DB3-\u0DBB\u0DBD\u0DC0-\u0DC6\u0DCA\u0DCF-\u0DD4\u0DD6\u0DD8-\u0DDF\u0DE6-\u0DEF\u0DF2\u0DF3\u0E01-\u0E3A\u0E40-\u0E4E\u0E50-\u0E59\u0E81\u0E82\u0E84\u0E87\u0E88\u0E8A\u0E8D\u0E94-\u0E97\u0E99-\u0E9F\u0EA1-\u0EA3\u0EA5\u0EA7\u0EAA\u0EAB\u0EAD-\u0EB9\u0EBB-\u0EBD\u0EC0-\u0EC4\u0EC6\u0EC8-\u0ECD\u0ED0-\u0ED9\u0EDC-\u0EDF\u0F00\u0F18\u0F19\u0F20-\u0F29\u0F35\u0F37\u0F39\u0F3E-\u0F47\u0F49-\u0F6C\u0F71-\u0F84\u0F86-\u0F97\u0F99-\u0FBC\u0FC6\u1000-\u1049\u1050-\u109D\u10A0-\u10C5\u10C7\u10CD\u10D0-\u10FA\u10FC-\u1248\u124A-\u124D\u1250-\u1256\u1258\u125A-\u125D\u1260-\u1288\u128A-\u128D\u1290-\u12B0\u12B2-\u12B5\u12B8-\u12BE\u12C0\u12C2-\u12C5\u12C8-\u12D6\u12D8-\u1310\u1312-\u1315\u1318-\u135A\u135D-\u135F\u1369-\u1371\u1380-\u138F\u13A0-\u13F4\u1401-\u166C\u166F-\u167F\u1681-\u169A\u16A0-\u16EA\u16EE-\u16F8\u1700-\u170C\u170E-\u1714\u1720-\u1734\u1740-\u1753\u1760-\u176C\u176E-\u1770\u1772\u1773\u1780-\u17D3\u17D7\u17DC\u17DD\u17E0-\u17E9\u180B-\u180D\u1810-\u1819\u1820-\u1877\u1880-\u18AA\u18B0-\u18F5\u1900-\u191E\u1920-\u192B\u1930-\u193B\u1946-\u196D\u1970-\u1974\u1980-\u19AB\u19B0-\u19C9\u19D0-\u19DA\u1A00-\u1A1B\u1A20-\u1A5E\u1A60-\u1A7C\u1A7F-\u1A89\u1A90-\u1A99\u1AA7\u1AB0-\u1ABD\u1B00-\u1B4B\u1B50-\u1B59\u1B6B-\u1B73\u1B80-\u1BF3\u1C00-\u1C37\u1C40-\u1C49\u1C4D-\u1C7D\u1CD0-\u1CD2\u1CD4-\u1CF6\u1CF8\u1CF9\u1D00-\u1DF5\u1DFC-\u1F15\u1F18-\u1F1D\u1F20-\u1F45\u1F48-\u1F4D\u1F50-\u1F57\u1F59\u1F5B\u1F5D\u1F5F-\u1F7D\u1F80-\u1FB4\u1FB6-\u1FBC\u1FBE\u1FC2-\u1FC4\u1FC6-\u1FCC\u1FD0-\u1FD3\u1FD6-\u1FDB\u1FE0-\u1FEC\u1FF2-\u1FF4\u1FF6-\u1FFC\u200C\u200D\u203F\u2040\u2054\u2071\u207F\u2090-\u209C\u20D0-\u20DC\u20E1\u20E5-\u20F0\u2102\u2107\u210A-\u2113\u2115\u2118-\u211D\u2124\u2126\u2128\u212A-\u2139\u213C-\u213F\u2145-\u2149\u214E\u2160-\u2188\u2C00-\u2C2E\u2C30-\u2C5E\u2C60-\u2CE4\u2CEB-\u2CF3\u2D00-\u2D25\u2D27\u2D2D\u2D30-\u2D67\u2D6F\u2D7F-\u2D96\u2DA0-\u2DA6\u2DA8-\u2DAE\u2DB0-\u2DB6\u2DB8-\u2DBE\u2DC0-\u2DC6\u2DC8-\u2DCE\u2DD0-\u2DD6\u2DD8-\u2DDE\u2DE0-\u2DFF\u3005-\u3007\u3021-\u302F\u3031-\u3035\u3038-\u303C\u3041-\u3096\u3099-\u309F\u30A1-\u30FA\u30FC-\u30FF\u3105-\u312D\u3131-\u318E\u31A0-\u31BA\u31F0-\u31FF\u3400-\u4DB5\u4E00-\u9FCC\uA000-\uA48C\uA4D0-\uA4FD\uA500-\uA60C\uA610-\uA62B\uA640-\uA66F\uA674-\uA67D\uA67F-\uA69D\uA69F-\uA6F1\uA717-\uA71F\uA722-\uA788\uA78B-\uA78E\uA790-\uA7AD\uA7B0\uA7B1\uA7F7-\uA827\uA840-\uA873\uA880-\uA8C4\uA8D0-\uA8D9\uA8E0-\uA8F7\uA8FB\uA900-\uA92D\uA930-\uA953\uA960-\uA97C\uA980-\uA9C0\uA9CF-\uA9D9\uA9E0-\uA9FE\uAA00-\uAA36\uAA40-\uAA4D\uAA50-\uAA59\uAA60-\uAA76\uAA7A-\uAAC2\uAADB-\uAADD\uAAE0-\uAAEF\uAAF2-\uAAF6\uAB01-\uAB06\uAB09-\uAB0E\uAB11-\uAB16\uAB20-\uAB26\uAB28-\uAB2E\uAB30-\uAB5A\uAB5C-\uAB5F\uAB64\uAB65\uABC0-\uABEA\uABEC\uABED\uABF0-\uABF9\uAC00-\uD7A3\uD7B0-\uD7C6\uD7CB-\uD7FB\uF900-\uFA6D\uFA70-\uFAD9\uFB00-\uFB06\uFB13-\uFB17\uFB1D-\uFB28\uFB2A-\uFB36\uFB38-\uFB3C\uFB3E\uFB40\uFB41\uFB43\uFB44\uFB46-\uFBB1\uFBD3-\uFD3D\uFD50-\uFD8F\uFD92-\uFDC7\uFDF0-\uFDFB\uFE00-\uFE0F\uFE20-\uFE2D\uFE33\uFE34\uFE4D-\uFE4F\uFE70-\uFE74\uFE76-\uFEFC\uFF10-\uFF19\uFF21-\uFF3A\uFF3F\uFF41-\uFF5A\uFF66-\uFFBE\uFFC2-\uFFC7\uFFCA-\uFFCF\uFFD2-\uFFD7\uFFDA-\uFFDC]|\uD800[\uDC00-\uDC0B\uDC0D-\uDC26\uDC28-\uDC3A\uDC3C\uDC3D\uDC3F-\uDC4D\uDC50-\uDC5D\uDC80-\uDCFA\uDD40-\uDD74\uDDFD\uDE80-\uDE9C\uDEA0-\uDED0\uDEE0\uDF00-\uDF1F\uDF30-\uDF4A\uDF50-\uDF7A\uDF80-\uDF9D\uDFA0-\uDFC3\uDFC8-\uDFCF\uDFD1-\uDFD5]|\uD801[\uDC00-\uDC9D\uDCA0-\uDCA9\uDD00-\uDD27\uDD30-\uDD63\uDE00-\uDF36\uDF40-\uDF55\uDF60-\uDF67]|\uD802[\uDC00-\uDC05\uDC08\uDC0A-\uDC35\uDC37\uDC38\uDC3C\uDC3F-\uDC55\uDC60-\uDC76\uDC80-\uDC9E\uDD00-\uDD15\uDD20-\uDD39\uDD80-\uDDB7\uDDBE\uDDBF\uDE00-\uDE03\uDE05\uDE06\uDE0C-\uDE13\uDE15-\uDE17\uDE19-\uDE33\uDE38-\uDE3A\uDE3F\uDE60-\uDE7C\uDE80-\uDE9C\uDEC0-\uDEC7\uDEC9-\uDEE6\uDF00-\uDF35\uDF40-\uDF55\uDF60-\uDF72\uDF80-\uDF91]|\uD803[\uDC00-\uDC48]|\uD804[\uDC00-\uDC46\uDC66-\uDC6F\uDC7F-\uDCBA\uDCD0-\uDCE8\uDCF0-\uDCF9\uDD00-\uDD34\uDD36-\uDD3F\uDD50-\uDD73\uDD76\uDD80-\uDDC4\uDDD0-\uDDDA\uDE00-\uDE11\uDE13-\uDE37\uDEB0-\uDEEA\uDEF0-\uDEF9\uDF01-\uDF03\uDF05-\uDF0C\uDF0F\uDF10\uDF13-\uDF28\uDF2A-\uDF30\uDF32\uDF33\uDF35-\uDF39\uDF3C-\uDF44\uDF47\uDF48\uDF4B-\uDF4D\uDF57\uDF5D-\uDF63\uDF66-\uDF6C\uDF70-\uDF74]|\uD805[\uDC80-\uDCC5\uDCC7\uDCD0-\uDCD9\uDD80-\uDDB5\uDDB8-\uDDC0\uDE00-\uDE40\uDE44\uDE50-\uDE59\uDE80-\uDEB7\uDEC0-\uDEC9]|\uD806[\uDCA0-\uDCE9\uDCFF\uDEC0-\uDEF8]|\uD808[\uDC00-\uDF98]|\uD809[\uDC00-\uDC6E]|[\uD80C\uD840-\uD868\uD86A-\uD86C][\uDC00-\uDFFF]|\uD80D[\uDC00-\uDC2E]|\uD81A[\uDC00-\uDE38\uDE40-\uDE5E\uDE60-\uDE69\uDED0-\uDEED\uDEF0-\uDEF4\uDF00-\uDF36\uDF40-\uDF43\uDF50-\uDF59\uDF63-\uDF77\uDF7D-\uDF8F]|\uD81B[\uDF00-\uDF44\uDF50-\uDF7E\uDF8F-\uDF9F]|\uD82C[\uDC00\uDC01]|\uD82F[\uDC00-\uDC6A\uDC70-\uDC7C\uDC80-\uDC88\uDC90-\uDC99\uDC9D\uDC9E]|\uD834[\uDD65-\uDD69\uDD6D-\uDD72\uDD7B-\uDD82\uDD85-\uDD8B\uDDAA-\uDDAD\uDE42-\uDE44]|\uD835[\uDC00-\uDC54\uDC56-\uDC9C\uDC9E\uDC9F\uDCA2\uDCA5\uDCA6\uDCA9-\uDCAC\uDCAE-\uDCB9\uDCBB\uDCBD-\uDCC3\uDCC5-\uDD05\uDD07-\uDD0A\uDD0D-\uDD14\uDD16-\uDD1C\uDD1E-\uDD39\uDD3B-\uDD3E\uDD40-\uDD44\uDD46\uDD4A-\uDD50\uDD52-\uDEA5\uDEA8-\uDEC0\uDEC2-\uDEDA\uDEDC-\uDEFA\uDEFC-\uDF14\uDF16-\uDF34\uDF36-\uDF4E\uDF50-\uDF6E\uDF70-\uDF88\uDF8A-\uDFA8\uDFAA-\uDFC2\uDFC4-\uDFCB\uDFCE-\uDFFF]|\uD83A[\uDC00-\uDCC4\uDCD0-\uDCD6]|\uD83B[\uDE00-\uDE03\uDE05-\uDE1F\uDE21\uDE22\uDE24\uDE27\uDE29-\uDE32\uDE34-\uDE37\uDE39\uDE3B\uDE42\uDE47\uDE49\uDE4B\uDE4D-\uDE4F\uDE51\uDE52\uDE54\uDE57\uDE59\uDE5B\uDE5D\uDE5F\uDE61\uDE62\uDE64\uDE67-\uDE6A\uDE6C-\uDE72\uDE74-\uDE77\uDE79-\uDE7C\uDE7E\uDE80-\uDE89\uDE8B-\uDE9B\uDEA1-\uDEA3\uDEA5-\uDEA9\uDEAB-\uDEBB]|\uD869[\uDC00-\uDED6\uDF00-\uDFFF]|\uD86D[\uDC00-\uDF34\uDF40-\uDFFF]|\uD86E[\uDC00-\uDC1D]|\uD87E[\uDC00-\uDE1D]|\uDB40[\uDD00-\uDDEF]/ + }; + + // Ensure the condition is true, otherwise throw an error. + // This is only to have a better contract semantic, i.e. another safety net + // to catch a logic error. The condition shall be fulfilled in normal case. + // Do NOT use this to enforce a certain condition on any user input. + + function assert(condition, message) { + /* istanbul ignore if */ + if (!condition) { + throw new Error('ASSERT: ' + message); + } + } + + function isDecimalDigit(ch) { + return (ch >= 0x30 && ch <= 0x39); // 0..9 + } + + function isHexDigit(ch) { + return '0123456789abcdefABCDEF'.indexOf(ch) >= 0; + } + + function isOctalDigit(ch) { + return '01234567'.indexOf(ch) >= 0; + } + + function octalToDecimal(ch) { + // \0 is not octal escape sequence + var octal = (ch !== '0'), code = '01234567'.indexOf(ch); + + if (index < length && isOctalDigit(source[index])) { + octal = true; + code = code * 8 + '01234567'.indexOf(source[index++]); + + // 3 digits are only allowed when string starts + // with 0, 1, 2, 3 + if ('0123'.indexOf(ch) >= 0 && + index < length && + isOctalDigit(source[index])) { + code = code * 8 + '01234567'.indexOf(source[index++]); + } + } + + return { + code: code, + octal: octal + }; + } + + // ECMA-262 11.2 White Space + + function isWhiteSpace(ch) { + return (ch === 0x20) || (ch === 0x09) || (ch === 0x0B) || (ch === 0x0C) || (ch === 0xA0) || + (ch >= 0x1680 && [0x1680, 0x180E, 0x2000, 0x2001, 0x2002, 0x2003, 0x2004, 0x2005, 0x2006, 0x2007, 0x2008, 0x2009, 0x200A, 0x202F, 0x205F, 0x3000, 0xFEFF].indexOf(ch) >= 0); + } + + // ECMA-262 11.3 Line Terminators + + function isLineTerminator(ch) { + return (ch === 0x0A) || (ch === 0x0D) || (ch === 0x2028) || (ch === 0x2029); + } + + // ECMA-262 11.6 Identifier Names and Identifiers + + function fromCodePoint(cp) { + return (cp < 0x10000) ? String.fromCharCode(cp) : + String.fromCharCode(0xD800 + ((cp - 0x10000) >> 10)) + + String.fromCharCode(0xDC00 + ((cp - 0x10000) & 1023)); + } + + function isIdentifierStart(ch) { + return (ch === 0x24) || (ch === 0x5F) || // $ (dollar) and _ (underscore) + (ch >= 0x41 && ch <= 0x5A) || // A..Z + (ch >= 0x61 && ch <= 0x7A) || // a..z + (ch === 0x5C) || // \ (backslash) + ((ch >= 0x80) && Regex.NonAsciiIdentifierStart.test(fromCodePoint(ch))); + } + + function isIdentifierPart(ch) { + return (ch === 0x24) || (ch === 0x5F) || // $ (dollar) and _ (underscore) + (ch >= 0x41 && ch <= 0x5A) || // A..Z + (ch >= 0x61 && ch <= 0x7A) || // a..z + (ch >= 0x30 && ch <= 0x39) || // 0..9 + (ch === 0x5C) || // \ (backslash) + ((ch >= 0x80) && Regex.NonAsciiIdentifierPart.test(fromCodePoint(ch))); + } + + // ECMA-262 11.6.2.2 Future Reserved Words + + function isFutureReservedWord(id) { + switch (id) { + case 'enum': + case 'export': + case 'import': + case 'super': + return true; + default: + return false; + } + } + + function isStrictModeReservedWord(id) { + switch (id) { + case 'implements': + case 'interface': + case 'package': + case 'private': + case 'protected': + case 'public': + case 'static': + case 'yield': + case 'let': + return true; + default: + return false; + } + } + + function isRestrictedWord(id) { + return id === 'eval' || id === 'arguments'; + } + + // ECMA-262 11.6.2.1 Keywords + + function isKeyword(id) { + switch (id.length) { + case 2: + return (id === 'if') || (id === 'in') || (id === 'do'); + case 3: + return (id === 'var') || (id === 'for') || (id === 'new') || + (id === 'try') || (id === 'let'); + case 4: + return (id === 'this') || (id === 'else') || (id === 'case') || + (id === 'void') || (id === 'with') || (id === 'enum'); + case 5: + return (id === 'while') || (id === 'break') || (id === 'catch') || + (id === 'throw') || (id === 'const') || (id === 'yield') || + (id === 'class') || (id === 'super'); + case 6: + return (id === 'return') || (id === 'typeof') || (id === 'delete') || + (id === 'switch') || (id === 'export') || (id === 'import'); + case 7: + return (id === 'default') || (id === 'finally') || (id === 'extends'); + case 8: + return (id === 'function') || (id === 'continue') || (id === 'debugger'); + case 10: + return (id === 'instanceof'); + default: + return false; + } + } + + // ECMA-262 11.4 Comments + + function addComment(type, value, start, end, loc) { + var comment; + + assert(typeof start === 'number', 'Comment must have valid position'); + + state.lastCommentStart = start; + + comment = { + type: type, + value: value + }; + if (extra.range) { + comment.range = [start, end]; + } + if (extra.loc) { + comment.loc = loc; + } + extra.comments.push(comment); + if (extra.attachComment) { + extra.leadingComments.push(comment); + extra.trailingComments.push(comment); + } + if (extra.tokenize) { + comment.type = comment.type + 'Comment'; + if (extra.delegate) { + comment = extra.delegate(comment); + } + extra.tokens.push(comment); + } + } + + function skipSingleLineComment(offset) { + var start, loc, ch, comment; + + start = index - offset; + loc = { + start: { + line: lineNumber, + column: index - lineStart - offset + } + }; + + while (index < length) { + ch = source.charCodeAt(index); + ++index; + if (isLineTerminator(ch)) { + hasLineTerminator = true; + if (extra.comments) { + comment = source.slice(start + offset, index - 1); + loc.end = { + line: lineNumber, + column: index - lineStart - 1 + }; + addComment('Line', comment, start, index - 1, loc); + } + if (ch === 13 && source.charCodeAt(index) === 10) { + ++index; + } + ++lineNumber; + lineStart = index; + return; + } + } + + if (extra.comments) { + comment = source.slice(start + offset, index); + loc.end = { + line: lineNumber, + column: index - lineStart + }; + addComment('Line', comment, start, index, loc); + } + } + + function skipMultiLineComment() { + var start, loc, ch, comment; + + if (extra.comments) { + start = index - 2; + loc = { + start: { + line: lineNumber, + column: index - lineStart - 2 + } + }; + } + + while (index < length) { + ch = source.charCodeAt(index); + if (isLineTerminator(ch)) { + if (ch === 0x0D && source.charCodeAt(index + 1) === 0x0A) { + ++index; + } + hasLineTerminator = true; + ++lineNumber; + ++index; + lineStart = index; + } else if (ch === 0x2A) { + // Block comment ends with '*/'. + if (source.charCodeAt(index + 1) === 0x2F) { + ++index; + ++index; + if (extra.comments) { + comment = source.slice(start + 2, index - 2); + loc.end = { + line: lineNumber, + column: index - lineStart + }; + addComment('Block', comment, start, index, loc); + } + return; + } + ++index; + } else { + ++index; + } + } + + // Ran off the end of the file - the whole thing is a comment + if (extra.comments) { + loc.end = { + line: lineNumber, + column: index - lineStart + }; + comment = source.slice(start + 2, index); + addComment('Block', comment, start, index, loc); + } + tolerateUnexpectedToken(); + } + + function skipComment() { + var ch, start; + hasLineTerminator = false; + + start = (index === 0); + while (index < length) { + ch = source.charCodeAt(index); + + if (isWhiteSpace(ch)) { + ++index; + } else if (isLineTerminator(ch)) { + hasLineTerminator = true; + ++index; + if (ch === 0x0D && source.charCodeAt(index) === 0x0A) { + ++index; + } + ++lineNumber; + lineStart = index; + start = true; + } else if (ch === 0x2F) { // U+002F is '/' + ch = source.charCodeAt(index + 1); + if (ch === 0x2F) { + ++index; + ++index; + skipSingleLineComment(2); + start = true; + } else if (ch === 0x2A) { // U+002A is '*' + ++index; + ++index; + skipMultiLineComment(); + } else { + break; + } + } else if (start && ch === 0x2D) { // U+002D is '-' + // U+003E is '>' + if ((source.charCodeAt(index + 1) === 0x2D) && (source.charCodeAt(index + 2) === 0x3E)) { + // '-->' is a single-line comment + index += 3; + skipSingleLineComment(3); + } else { + break; + } + } else if (ch === 0x3C) { // U+003C is '<' + if (source.slice(index + 1, index + 4) === '!--') { + ++index; // `<` + ++index; // `!` + ++index; // `-` + ++index; // `-` + skipSingleLineComment(4); + } else { + break; + } + } else { + break; + } + } + } + + function scanHexEscape(prefix) { + var i, len, ch, code = 0; + + len = (prefix === 'u') ? 4 : 2; + for (i = 0; i < len; ++i) { + if (index < length && isHexDigit(source[index])) { + ch = source[index++]; + code = code * 16 + '0123456789abcdef'.indexOf(ch.toLowerCase()); + } else { + return ''; + } + } + return String.fromCharCode(code); + } + + function scanUnicodeCodePointEscape() { + var ch, code; + + ch = source[index]; + code = 0; + + // At least, one hex digit is required. + if (ch === '}') { + throwUnexpectedToken(); + } + + while (index < length) { + ch = source[index++]; + if (!isHexDigit(ch)) { + break; + } + code = code * 16 + '0123456789abcdef'.indexOf(ch.toLowerCase()); + } + + if (code > 0x10FFFF || ch !== '}') { + throwUnexpectedToken(); + } + + return fromCodePoint(code); + } + + function codePointAt(i) { + var cp, first, second; + + cp = source.charCodeAt(i); + if (cp >= 0xD800 && cp <= 0xDBFF) { + second = source.charCodeAt(i + 1); + if (second >= 0xDC00 && second <= 0xDFFF) { + first = cp; + cp = (first - 0xD800) * 0x400 + second - 0xDC00 + 0x10000; + } + } + + return cp; + } + + function getComplexIdentifier() { + var cp, ch, id; + + cp = codePointAt(index); + id = fromCodePoint(cp); + index += id.length; + + // '\u' (U+005C, U+0075) denotes an escaped character. + if (cp === 0x5C) { + if (source.charCodeAt(index) !== 0x75) { + throwUnexpectedToken(); + } + ++index; + if (source[index] === '{') { + ++index; + ch = scanUnicodeCodePointEscape(); + } else { + ch = scanHexEscape('u'); + cp = ch.charCodeAt(0); + if (!ch || ch === '\\' || !isIdentifierStart(cp)) { + throwUnexpectedToken(); + } + } + id = ch; + } + + while (index < length) { + cp = codePointAt(index); + if (!isIdentifierPart(cp)) { + break; + } + ch = fromCodePoint(cp); + id += ch; + index += ch.length; + + // '\u' (U+005C, U+0075) denotes an escaped character. + if (cp === 0x5C) { + id = id.substr(0, id.length - 1); + if (source.charCodeAt(index) !== 0x75) { + throwUnexpectedToken(); + } + ++index; + if (source[index] === '{') { + ++index; + ch = scanUnicodeCodePointEscape(); + } else { + ch = scanHexEscape('u'); + cp = ch.charCodeAt(0); + if (!ch || ch === '\\' || !isIdentifierPart(cp)) { + throwUnexpectedToken(); + } + } + id += ch; + } + } + + return id; + } + + function getIdentifier() { + var start, ch; + + start = index++; + while (index < length) { + ch = source.charCodeAt(index); + if (ch === 0x5C) { + // Blackslash (U+005C) marks Unicode escape sequence. + index = start; + return getComplexIdentifier(); + } else if (ch >= 0xD800 && ch < 0xDFFF) { + // Need to handle surrogate pairs. + index = start; + return getComplexIdentifier(); + } + if (isIdentifierPart(ch)) { + ++index; + } else { + break; + } + } + + return source.slice(start, index); + } + + function scanIdentifier() { + var start, id, type; + + start = index; + + // Backslash (U+005C) starts an escaped character. + id = (source.charCodeAt(index) === 0x5C) ? getComplexIdentifier() : getIdentifier(); + + // There is no keyword or literal with only one character. + // Thus, it must be an identifier. + if (id.length === 1) { + type = Token.Identifier; + } else if (isKeyword(id)) { + type = Token.Keyword; + } else if (id === 'null') { + type = Token.NullLiteral; + } else if (id === 'true' || id === 'false') { + type = Token.BooleanLiteral; + } else { + type = Token.Identifier; + } + + return { + type: type, + value: id, + lineNumber: lineNumber, + lineStart: lineStart, + start: start, + end: index + }; + } + + + // ECMA-262 11.7 Punctuators + + function scanPunctuator() { + var token, str; + + token = { + type: Token.Punctuator, + value: '', + lineNumber: lineNumber, + lineStart: lineStart, + start: index, + end: index + }; + + // Check for most common single-character punctuators. + str = source[index]; + switch (str) { + + case '(': + if (extra.tokenize) { + extra.openParenToken = extra.tokenValues.length; + } + ++index; + break; + + case '{': + if (extra.tokenize) { + extra.openCurlyToken = extra.tokenValues.length; + } + state.curlyStack.push('{'); + ++index; + break; + + case '.': + ++index; + if (source[index] === '.' && source[index + 1] === '.') { + // Spread operator: ... + index += 2; + str = '...'; + } + break; + + case '}': + ++index; + state.curlyStack.pop(); + break; + case ')': + case ';': + case ',': + case '[': + case ']': + case ':': + case '?': + case '~': + ++index; + break; + + default: + // 4-character punctuator. + str = source.substr(index, 4); + if (str === '>>>=') { + index += 4; + } else { + + // 3-character punctuators. + str = str.substr(0, 3); + if (str === '===' || str === '!==' || str === '>>>' || + str === '<<=' || str === '>>=') { + index += 3; + } else { + + // 2-character punctuators. + str = str.substr(0, 2); + if (str === '&&' || str === '||' || str === '==' || str === '!=' || + str === '+=' || str === '-=' || str === '*=' || str === '/=' || + str === '++' || str === '--' || str === '<<' || str === '>>' || + str === '&=' || str === '|=' || str === '^=' || str === '%=' || + str === '<=' || str === '>=' || str === '=>') { + index += 2; + } else { + + // 1-character punctuators. + str = source[index]; + if ('<>=!+-*%&|^/'.indexOf(str) >= 0) { + ++index; + } + } + } + } + } + + if (index === token.start) { + throwUnexpectedToken(); + } + + token.end = index; + token.value = str; + return token; + } + + // ECMA-262 11.8.3 Numeric Literals + + function scanHexLiteral(start) { + var number = ''; + + while (index < length) { + if (!isHexDigit(source[index])) { + break; + } + number += source[index++]; + } + + if (number.length === 0) { + throwUnexpectedToken(); + } + + if (isIdentifierStart(source.charCodeAt(index))) { + throwUnexpectedToken(); + } + + return { + type: Token.NumericLiteral, + value: parseInt('0x' + number, 16), + lineNumber: lineNumber, + lineStart: lineStart, + start: start, + end: index + }; + } + + function scanBinaryLiteral(start) { + var ch, number; + + number = ''; + + while (index < length) { + ch = source[index]; + if (ch !== '0' && ch !== '1') { + break; + } + number += source[index++]; + } + + if (number.length === 0) { + // only 0b or 0B + throwUnexpectedToken(); + } + + if (index < length) { + ch = source.charCodeAt(index); + /* istanbul ignore else */ + if (isIdentifierStart(ch) || isDecimalDigit(ch)) { + throwUnexpectedToken(); + } + } + + return { + type: Token.NumericLiteral, + value: parseInt(number, 2), + lineNumber: lineNumber, + lineStart: lineStart, + start: start, + end: index + }; + } + + function scanOctalLiteral(prefix, start) { + var number, octal; + + if (isOctalDigit(prefix)) { + octal = true; + number = '0' + source[index++]; + } else { + octal = false; + ++index; + number = ''; + } + + while (index < length) { + if (!isOctalDigit(source[index])) { + break; + } + number += source[index++]; + } + + if (!octal && number.length === 0) { + // only 0o or 0O + throwUnexpectedToken(); + } + + if (isIdentifierStart(source.charCodeAt(index)) || isDecimalDigit(source.charCodeAt(index))) { + throwUnexpectedToken(); + } + + return { + type: Token.NumericLiteral, + value: parseInt(number, 8), + octal: octal, + lineNumber: lineNumber, + lineStart: lineStart, + start: start, + end: index + }; + } + + function isImplicitOctalLiteral() { + var i, ch; + + // Implicit octal, unless there is a non-octal digit. + // (Annex B.1.1 on Numeric Literals) + for (i = index + 1; i < length; ++i) { + ch = source[i]; + if (ch === '8' || ch === '9') { + return false; + } + if (!isOctalDigit(ch)) { + return true; + } + } + + return true; + } + + function scanNumericLiteral() { + var number, start, ch; + + ch = source[index]; + assert(isDecimalDigit(ch.charCodeAt(0)) || (ch === '.'), + 'Numeric literal must start with a decimal digit or a decimal point'); + + start = index; + number = ''; + if (ch !== '.') { + number = source[index++]; + ch = source[index]; + + // Hex number starts with '0x'. + // Octal number starts with '0'. + // Octal number in ES6 starts with '0o'. + // Binary number in ES6 starts with '0b'. + if (number === '0') { + if (ch === 'x' || ch === 'X') { + ++index; + return scanHexLiteral(start); + } + if (ch === 'b' || ch === 'B') { + ++index; + return scanBinaryLiteral(start); + } + if (ch === 'o' || ch === 'O') { + return scanOctalLiteral(ch, start); + } + + if (isOctalDigit(ch)) { + if (isImplicitOctalLiteral()) { + return scanOctalLiteral(ch, start); + } + } + } + + while (isDecimalDigit(source.charCodeAt(index))) { + number += source[index++]; + } + ch = source[index]; + } + + if (ch === '.') { + number += source[index++]; + while (isDecimalDigit(source.charCodeAt(index))) { + number += source[index++]; + } + ch = source[index]; + } + + if (ch === 'e' || ch === 'E') { + number += source[index++]; + + ch = source[index]; + if (ch === '+' || ch === '-') { + number += source[index++]; + } + if (isDecimalDigit(source.charCodeAt(index))) { + while (isDecimalDigit(source.charCodeAt(index))) { + number += source[index++]; + } + } else { + throwUnexpectedToken(); + } + } + + if (isIdentifierStart(source.charCodeAt(index))) { + throwUnexpectedToken(); + } + + return { + type: Token.NumericLiteral, + value: parseFloat(number), + lineNumber: lineNumber, + lineStart: lineStart, + start: start, + end: index + }; + } + + // ECMA-262 11.8.4 String Literals + + function scanStringLiteral() { + var str = '', quote, start, ch, unescaped, octToDec, octal = false; + + quote = source[index]; + assert((quote === '\'' || quote === '"'), + 'String literal must starts with a quote'); + + start = index; + ++index; + + while (index < length) { + ch = source[index++]; + + if (ch === quote) { + quote = ''; + break; + } else if (ch === '\\') { + ch = source[index++]; + if (!ch || !isLineTerminator(ch.charCodeAt(0))) { + switch (ch) { + case 'u': + case 'x': + if (source[index] === '{') { + ++index; + str += scanUnicodeCodePointEscape(); + } else { + unescaped = scanHexEscape(ch); + if (!unescaped) { + throw throwUnexpectedToken(); + } + str += unescaped; + } + break; + case 'n': + str += '\n'; + break; + case 'r': + str += '\r'; + break; + case 't': + str += '\t'; + break; + case 'b': + str += '\b'; + break; + case 'f': + str += '\f'; + break; + case 'v': + str += '\x0B'; + break; + case '8': + case '9': + str += ch; + tolerateUnexpectedToken(); + break; + + default: + if (isOctalDigit(ch)) { + octToDec = octalToDecimal(ch); + + octal = octToDec.octal || octal; + str += String.fromCharCode(octToDec.code); + } else { + str += ch; + } + break; + } + } else { + ++lineNumber; + if (ch === '\r' && source[index] === '\n') { + ++index; + } + lineStart = index; + } + } else if (isLineTerminator(ch.charCodeAt(0))) { + break; + } else { + str += ch; + } + } + + if (quote !== '') { + index = start; + throwUnexpectedToken(); + } + + return { + type: Token.StringLiteral, + value: str, + octal: octal, + lineNumber: startLineNumber, + lineStart: startLineStart, + start: start, + end: index + }; + } + + // ECMA-262 11.8.6 Template Literal Lexical Components + + function scanTemplate() { + var cooked = '', ch, start, rawOffset, terminated, head, tail, restore, unescaped; + + terminated = false; + tail = false; + start = index; + head = (source[index] === '`'); + rawOffset = 2; + + ++index; + + while (index < length) { + ch = source[index++]; + if (ch === '`') { + rawOffset = 1; + tail = true; + terminated = true; + break; + } else if (ch === '$') { + if (source[index] === '{') { + state.curlyStack.push('${'); + ++index; + terminated = true; + break; + } + cooked += ch; + } else if (ch === '\\') { + ch = source[index++]; + if (!isLineTerminator(ch.charCodeAt(0))) { + switch (ch) { + case 'n': + cooked += '\n'; + break; + case 'r': + cooked += '\r'; + break; + case 't': + cooked += '\t'; + break; + case 'u': + case 'x': + if (source[index] === '{') { + ++index; + cooked += scanUnicodeCodePointEscape(); + } else { + restore = index; + unescaped = scanHexEscape(ch); + if (unescaped) { + cooked += unescaped; + } else { + index = restore; + cooked += ch; + } + } + break; + case 'b': + cooked += '\b'; + break; + case 'f': + cooked += '\f'; + break; + case 'v': + cooked += '\v'; + break; + + default: + if (ch === '0') { + if (isDecimalDigit(source.charCodeAt(index))) { + // Illegal: \01 \02 and so on + throwError(Messages.TemplateOctalLiteral); + } + cooked += '\0'; + } else if (isOctalDigit(ch)) { + // Illegal: \1 \2 + throwError(Messages.TemplateOctalLiteral); + } else { + cooked += ch; + } + break; + } + } else { + ++lineNumber; + if (ch === '\r' && source[index] === '\n') { + ++index; + } + lineStart = index; + } + } else if (isLineTerminator(ch.charCodeAt(0))) { + ++lineNumber; + if (ch === '\r' && source[index] === '\n') { + ++index; + } + lineStart = index; + cooked += '\n'; + } else { + cooked += ch; + } + } + + if (!terminated) { + throwUnexpectedToken(); + } + + if (!head) { + state.curlyStack.pop(); + } + + return { + type: Token.Template, + value: { + cooked: cooked, + raw: source.slice(start + 1, index - rawOffset) + }, + head: head, + tail: tail, + lineNumber: lineNumber, + lineStart: lineStart, + start: start, + end: index + }; + } + + // ECMA-262 11.8.5 Regular Expression Literals + + function testRegExp(pattern, flags) { + // The BMP character to use as a replacement for astral symbols when + // translating an ES6 "u"-flagged pattern to an ES5-compatible + // approximation. + // Note: replacing with '\uFFFF' enables false positives in unlikely + // scenarios. For example, `[\u{1044f}-\u{10440}]` is an invalid + // pattern that would not be detected by this substitution. + var astralSubstitute = '\uFFFF', + tmp = pattern; + + if (flags.indexOf('u') >= 0) { + tmp = tmp + // Replace every Unicode escape sequence with the equivalent + // BMP character or a constant ASCII code point in the case of + // astral symbols. (See the above note on `astralSubstitute` + // for more information.) + .replace(/\\u\{([0-9a-fA-F]+)\}|\\u([a-fA-F0-9]{4})/g, function ($0, $1, $2) { + var codePoint = parseInt($1 || $2, 16); + if (codePoint > 0x10FFFF) { + throwUnexpectedToken(null, Messages.InvalidRegExp); + } + if (codePoint <= 0xFFFF) { + return String.fromCharCode(codePoint); + } + return astralSubstitute; + }) + // Replace each paired surrogate with a single ASCII symbol to + // avoid throwing on regular expressions that are only valid in + // combination with the "u" flag. + .replace( + /[\uD800-\uDBFF][\uDC00-\uDFFF]/g, + astralSubstitute + ); + } + + // First, detect invalid regular expressions. + try { + RegExp(tmp); + } catch (e) { + throwUnexpectedToken(null, Messages.InvalidRegExp); + } + + // Return a regular expression object for this pattern-flag pair, or + // `null` in case the current environment doesn't support the flags it + // uses. + try { + return new RegExp(pattern, flags); + } catch (exception) { + return null; + } + } + + function scanRegExpBody() { + var ch, str, classMarker, terminated, body; + + ch = source[index]; + assert(ch === '/', 'Regular expression literal must start with a slash'); + str = source[index++]; + + classMarker = false; + terminated = false; + while (index < length) { + ch = source[index++]; + str += ch; + if (ch === '\\') { + ch = source[index++]; + // ECMA-262 7.8.5 + if (isLineTerminator(ch.charCodeAt(0))) { + throwUnexpectedToken(null, Messages.UnterminatedRegExp); + } + str += ch; + } else if (isLineTerminator(ch.charCodeAt(0))) { + throwUnexpectedToken(null, Messages.UnterminatedRegExp); + } else if (classMarker) { + if (ch === ']') { + classMarker = false; + } + } else { + if (ch === '/') { + terminated = true; + break; + } else if (ch === '[') { + classMarker = true; + } + } + } + + if (!terminated) { + throwUnexpectedToken(null, Messages.UnterminatedRegExp); + } + + // Exclude leading and trailing slash. + body = str.substr(1, str.length - 2); + return { + value: body, + literal: str + }; + } + + function scanRegExpFlags() { + var ch, str, flags, restore; + + str = ''; + flags = ''; + while (index < length) { + ch = source[index]; + if (!isIdentifierPart(ch.charCodeAt(0))) { + break; + } + + ++index; + if (ch === '\\' && index < length) { + ch = source[index]; + if (ch === 'u') { + ++index; + restore = index; + ch = scanHexEscape('u'); + if (ch) { + flags += ch; + for (str += '\\u'; restore < index; ++restore) { + str += source[restore]; + } + } else { + index = restore; + flags += 'u'; + str += '\\u'; + } + tolerateUnexpectedToken(); + } else { + str += '\\'; + tolerateUnexpectedToken(); + } + } else { + flags += ch; + str += ch; + } + } + + return { + value: flags, + literal: str + }; + } + + function scanRegExp() { + var start, body, flags, value; + scanning = true; + + lookahead = null; + skipComment(); + start = index; + + body = scanRegExpBody(); + flags = scanRegExpFlags(); + value = testRegExp(body.value, flags.value); + scanning = false; + if (extra.tokenize) { + return { + type: Token.RegularExpression, + value: value, + regex: { + pattern: body.value, + flags: flags.value + }, + lineNumber: lineNumber, + lineStart: lineStart, + start: start, + end: index + }; + } + + return { + literal: body.literal + flags.literal, + value: value, + regex: { + pattern: body.value, + flags: flags.value + }, + start: start, + end: index + }; + } + + function collectRegex() { + var pos, loc, regex, token; + + skipComment(); + + pos = index; + loc = { + start: { + line: lineNumber, + column: index - lineStart + } + }; + + regex = scanRegExp(); + + loc.end = { + line: lineNumber, + column: index - lineStart + }; + + /* istanbul ignore next */ + if (!extra.tokenize) { + // Pop the previous token, which is likely '/' or '/=' + if (extra.tokens.length > 0) { + token = extra.tokens[extra.tokens.length - 1]; + if (token.range[0] === pos && token.type === 'Punctuator') { + if (token.value === '/' || token.value === '/=') { + extra.tokens.pop(); + } + } + } + + extra.tokens.push({ + type: 'RegularExpression', + value: regex.literal, + regex: regex.regex, + range: [pos, index], + loc: loc + }); + } + + return regex; + } + + function isIdentifierName(token) { + return token.type === Token.Identifier || + token.type === Token.Keyword || + token.type === Token.BooleanLiteral || + token.type === Token.NullLiteral; + } + + // Using the following algorithm: + // https://github.com/mozilla/sweet.js/wiki/design + + function advanceSlash() { + var regex, previous, check; + + function testKeyword(value) { + return value && (value.length > 1) && (value[0] >= 'a') && (value[0] <= 'z'); + } + + previous = extra.tokenValues[extra.tokens.length - 1]; + regex = (previous !== null); + + switch (previous) { + case 'this': + case ']': + regex = false; + break; + + case ')': + check = extra.tokenValues[extra.openParenToken - 1]; + regex = (check === 'if' || check === 'while' || check === 'for' || check === 'with'); + break; + + case '}': + // Dividing a function by anything makes little sense, + // but we have to check for that. + regex = false; + if (testKeyword(extra.tokenValues[extra.openCurlyToken - 3])) { + // Anonymous function, e.g. function(){} /42 + check = extra.tokenValues[extra.openCurlyToken - 4]; + regex = check ? (FnExprTokens.indexOf(check) < 0) : false; + } else if (testKeyword(extra.tokenValues[extra.openCurlyToken - 4])) { + // Named function, e.g. function f(){} /42/ + check = extra.tokenValues[extra.openCurlyToken - 5]; + regex = check ? (FnExprTokens.indexOf(check) < 0) : true; + } + } + + return regex ? collectRegex() : scanPunctuator(); + } + + function advance() { + var cp, token; + + if (index >= length) { + return { + type: Token.EOF, + lineNumber: lineNumber, + lineStart: lineStart, + start: index, + end: index + }; + } + + cp = source.charCodeAt(index); + + if (isIdentifierStart(cp)) { + token = scanIdentifier(); + if (strict && isStrictModeReservedWord(token.value)) { + token.type = Token.Keyword; + } + return token; + } + + // Very common: ( and ) and ; + if (cp === 0x28 || cp === 0x29 || cp === 0x3B) { + return scanPunctuator(); + } + + // String literal starts with single quote (U+0027) or double quote (U+0022). + if (cp === 0x27 || cp === 0x22) { + return scanStringLiteral(); + } + + // Dot (.) U+002E can also start a floating-point number, hence the need + // to check the next character. + if (cp === 0x2E) { + if (isDecimalDigit(source.charCodeAt(index + 1))) { + return scanNumericLiteral(); + } + return scanPunctuator(); + } + + if (isDecimalDigit(cp)) { + return scanNumericLiteral(); + } + + // Slash (/) U+002F can also start a regex. + if (extra.tokenize && cp === 0x2F) { + return advanceSlash(); + } + + // Template literals start with ` (U+0060) for template head + // or } (U+007D) for template middle or template tail. + if (cp === 0x60 || (cp === 0x7D && state.curlyStack[state.curlyStack.length - 1] === '${')) { + return scanTemplate(); + } + + // Possible identifier start in a surrogate pair. + if (cp >= 0xD800 && cp < 0xDFFF) { + cp = codePointAt(index); + if (isIdentifierStart(cp)) { + return scanIdentifier(); + } + } + + return scanPunctuator(); + } + + function collectToken() { + var loc, token, value, entry; + + loc = { + start: { + line: lineNumber, + column: index - lineStart + } + }; + + token = advance(); + loc.end = { + line: lineNumber, + column: index - lineStart + }; + + if (token.type !== Token.EOF) { + value = source.slice(token.start, token.end); + entry = { + type: TokenName[token.type], + value: value, + range: [token.start, token.end], + loc: loc + }; + if (token.regex) { + entry.regex = { + pattern: token.regex.pattern, + flags: token.regex.flags + }; + } + if (extra.tokenValues) { + extra.tokenValues.push((entry.type === 'Punctuator' || entry.type === 'Keyword') ? entry.value : null); + } + if (extra.tokenize) { + if (!extra.range) { + delete entry.range; + } + if (!extra.loc) { + delete entry.loc; + } + if (extra.delegate) { + entry = extra.delegate(entry); + } + } + extra.tokens.push(entry); + } + + return token; + } + + function lex() { + var token; + scanning = true; + + lastIndex = index; + lastLineNumber = lineNumber; + lastLineStart = lineStart; + + skipComment(); + + token = lookahead; + + startIndex = index; + startLineNumber = lineNumber; + startLineStart = lineStart; + + lookahead = (typeof extra.tokens !== 'undefined') ? collectToken() : advance(); + scanning = false; + return token; + } + + function peek() { + scanning = true; + + skipComment(); + + lastIndex = index; + lastLineNumber = lineNumber; + lastLineStart = lineStart; + + startIndex = index; + startLineNumber = lineNumber; + startLineStart = lineStart; + + lookahead = (typeof extra.tokens !== 'undefined') ? collectToken() : advance(); + scanning = false; + } + + function Position() { + this.line = startLineNumber; + this.column = startIndex - startLineStart; + } + + function SourceLocation() { + this.start = new Position(); + this.end = null; + } + + function WrappingSourceLocation(startToken) { + this.start = { + line: startToken.lineNumber, + column: startToken.start - startToken.lineStart + }; + this.end = null; + } + + function Node() { + if (extra.range) { + this.range = [startIndex, 0]; + } + if (extra.loc) { + this.loc = new SourceLocation(); + } + } + + function WrappingNode(startToken) { + if (extra.range) { + this.range = [startToken.start, 0]; + } + if (extra.loc) { + this.loc = new WrappingSourceLocation(startToken); + } + } + + WrappingNode.prototype = Node.prototype = { + + processComment: function () { + var lastChild, + innerComments, + leadingComments, + trailingComments, + bottomRight = extra.bottomRightStack, + i, + comment, + last = bottomRight[bottomRight.length - 1]; + + if (this.type === Syntax.Program) { + if (this.body.length > 0) { + return; + } + } + /** + * patch innnerComments for properties empty block + * `function a() {/** comments **\/}` + */ + + if (this.type === Syntax.BlockStatement && this.body.length === 0) { + innerComments = []; + for (i = extra.leadingComments.length - 1; i >= 0; --i) { + comment = extra.leadingComments[i]; + if (this.range[1] >= comment.range[1]) { + innerComments.unshift(comment); + extra.leadingComments.splice(i, 1); + extra.trailingComments.splice(i, 1); + } + } + if (innerComments.length) { + this.innerComments = innerComments; + //bottomRight.push(this); + return; + } + } + + if (extra.trailingComments.length > 0) { + trailingComments = []; + for (i = extra.trailingComments.length - 1; i >= 0; --i) { + comment = extra.trailingComments[i]; + if (comment.range[0] >= this.range[1]) { + trailingComments.unshift(comment); + extra.trailingComments.splice(i, 1); + } + } + extra.trailingComments = []; + } else { + if (last && last.trailingComments && last.trailingComments[0].range[0] >= this.range[1]) { + trailingComments = last.trailingComments; + delete last.trailingComments; + } + } + + // Eating the stack. + while (last && last.range[0] >= this.range[0]) { + lastChild = bottomRight.pop(); + last = bottomRight[bottomRight.length - 1]; + } + + if (lastChild) { + if (lastChild.leadingComments) { + leadingComments = []; + for (i = lastChild.leadingComments.length - 1; i >= 0; --i) { + comment = lastChild.leadingComments[i]; + if (comment.range[1] <= this.range[0]) { + leadingComments.unshift(comment); + lastChild.leadingComments.splice(i, 1); + } + } + + if (!lastChild.leadingComments.length) { + lastChild.leadingComments = undefined; + } + } + } else if (extra.leadingComments.length > 0) { + leadingComments = []; + for (i = extra.leadingComments.length - 1; i >= 0; --i) { + comment = extra.leadingComments[i]; + if (comment.range[1] <= this.range[0]) { + leadingComments.unshift(comment); + extra.leadingComments.splice(i, 1); + } + } + } + + + if (leadingComments && leadingComments.length > 0) { + this.leadingComments = leadingComments; + } + if (trailingComments && trailingComments.length > 0) { + this.trailingComments = trailingComments; + } + + bottomRight.push(this); + }, + + finish: function () { + if (extra.range) { + this.range[1] = lastIndex; + } + if (extra.loc) { + this.loc.end = { + line: lastLineNumber, + column: lastIndex - lastLineStart + }; + if (extra.source) { + this.loc.source = extra.source; + } + } + + if (extra.attachComment) { + this.processComment(); + } + }, + + finishArrayExpression: function (elements) { + this.type = Syntax.ArrayExpression; + this.elements = elements; + this.finish(); + return this; + }, + + finishArrayPattern: function (elements) { + this.type = Syntax.ArrayPattern; + this.elements = elements; + this.finish(); + return this; + }, + + finishArrowFunctionExpression: function (params, defaults, body, expression) { + this.type = Syntax.ArrowFunctionExpression; + this.id = null; + this.params = params; + this.defaults = defaults; + this.body = body; + this.generator = false; + this.expression = expression; + this.finish(); + return this; + }, + + finishAssignmentExpression: function (operator, left, right) { + this.type = Syntax.AssignmentExpression; + this.operator = operator; + this.left = left; + this.right = right; + this.finish(); + return this; + }, + + finishAssignmentPattern: function (left, right) { + this.type = Syntax.AssignmentPattern; + this.left = left; + this.right = right; + this.finish(); + return this; + }, + + finishBinaryExpression: function (operator, left, right) { + this.type = (operator === '||' || operator === '&&') ? Syntax.LogicalExpression : Syntax.BinaryExpression; + this.operator = operator; + this.left = left; + this.right = right; + this.finish(); + return this; + }, + + finishBlockStatement: function (body) { + this.type = Syntax.BlockStatement; + this.body = body; + this.finish(); + return this; + }, + + finishBreakStatement: function (label) { + this.type = Syntax.BreakStatement; + this.label = label; + this.finish(); + return this; + }, + + finishCallExpression: function (callee, args) { + this.type = Syntax.CallExpression; + this.callee = callee; + this.arguments = args; + this.finish(); + return this; + }, + + finishCatchClause: function (param, body) { + this.type = Syntax.CatchClause; + this.param = param; + this.body = body; + this.finish(); + return this; + }, + + finishClassBody: function (body) { + this.type = Syntax.ClassBody; + this.body = body; + this.finish(); + return this; + }, + + finishClassDeclaration: function (id, superClass, body) { + this.type = Syntax.ClassDeclaration; + this.id = id; + this.superClass = superClass; + this.body = body; + this.finish(); + return this; + }, + + finishClassExpression: function (id, superClass, body) { + this.type = Syntax.ClassExpression; + this.id = id; + this.superClass = superClass; + this.body = body; + this.finish(); + return this; + }, + + finishConditionalExpression: function (test, consequent, alternate) { + this.type = Syntax.ConditionalExpression; + this.test = test; + this.consequent = consequent; + this.alternate = alternate; + this.finish(); + return this; + }, + + finishContinueStatement: function (label) { + this.type = Syntax.ContinueStatement; + this.label = label; + this.finish(); + return this; + }, + + finishDebuggerStatement: function () { + this.type = Syntax.DebuggerStatement; + this.finish(); + return this; + }, + + finishDoWhileStatement: function (body, test) { + this.type = Syntax.DoWhileStatement; + this.body = body; + this.test = test; + this.finish(); + return this; + }, + + finishEmptyStatement: function () { + this.type = Syntax.EmptyStatement; + this.finish(); + return this; + }, + + finishExpressionStatement: function (expression) { + this.type = Syntax.ExpressionStatement; + this.expression = expression; + this.finish(); + return this; + }, + + finishForStatement: function (init, test, update, body) { + this.type = Syntax.ForStatement; + this.init = init; + this.test = test; + this.update = update; + this.body = body; + this.finish(); + return this; + }, + + finishForOfStatement: function (left, right, body) { + this.type = Syntax.ForOfStatement; + this.left = left; + this.right = right; + this.body = body; + this.finish(); + return this; + }, + + finishForInStatement: function (left, right, body) { + this.type = Syntax.ForInStatement; + this.left = left; + this.right = right; + this.body = body; + this.each = false; + this.finish(); + return this; + }, + + finishFunctionDeclaration: function (id, params, defaults, body, generator) { + this.type = Syntax.FunctionDeclaration; + this.id = id; + this.params = params; + this.defaults = defaults; + this.body = body; + this.generator = generator; + this.expression = false; + this.finish(); + return this; + }, + + finishFunctionExpression: function (id, params, defaults, body, generator) { + this.type = Syntax.FunctionExpression; + this.id = id; + this.params = params; + this.defaults = defaults; + this.body = body; + this.generator = generator; + this.expression = false; + this.finish(); + return this; + }, + + finishIdentifier: function (name) { + this.type = Syntax.Identifier; + this.name = name; + this.finish(); + return this; + }, + + finishIfStatement: function (test, consequent, alternate) { + this.type = Syntax.IfStatement; + this.test = test; + this.consequent = consequent; + this.alternate = alternate; + this.finish(); + return this; + }, + + finishLabeledStatement: function (label, body) { + this.type = Syntax.LabeledStatement; + this.label = label; + this.body = body; + this.finish(); + return this; + }, + + finishLiteral: function (token) { + this.type = Syntax.Literal; + this.value = token.value; + this.raw = source.slice(token.start, token.end); + if (token.regex) { + this.regex = token.regex; + } + this.finish(); + return this; + }, + + finishMemberExpression: function (accessor, object, property) { + this.type = Syntax.MemberExpression; + this.computed = accessor === '['; + this.object = object; + this.property = property; + this.finish(); + return this; + }, + + finishMetaProperty: function (meta, property) { + this.type = Syntax.MetaProperty; + this.meta = meta; + this.property = property; + this.finish(); + return this; + }, + + finishNewExpression: function (callee, args) { + this.type = Syntax.NewExpression; + this.callee = callee; + this.arguments = args; + this.finish(); + return this; + }, + + finishObjectExpression: function (properties) { + this.type = Syntax.ObjectExpression; + this.properties = properties; + this.finish(); + return this; + }, + + finishObjectPattern: function (properties) { + this.type = Syntax.ObjectPattern; + this.properties = properties; + this.finish(); + return this; + }, + + finishPostfixExpression: function (operator, argument) { + this.type = Syntax.UpdateExpression; + this.operator = operator; + this.argument = argument; + this.prefix = false; + this.finish(); + return this; + }, + + finishProgram: function (body, sourceType) { + this.type = Syntax.Program; + this.body = body; + this.sourceType = sourceType; + this.finish(); + return this; + }, + + finishProperty: function (kind, key, computed, value, method, shorthand) { + this.type = Syntax.Property; + this.key = key; + this.computed = computed; + this.value = value; + this.kind = kind; + this.method = method; + this.shorthand = shorthand; + this.finish(); + return this; + }, + + finishRestElement: function (argument) { + this.type = Syntax.RestElement; + this.argument = argument; + this.finish(); + return this; + }, + + finishReturnStatement: function (argument) { + this.type = Syntax.ReturnStatement; + this.argument = argument; + this.finish(); + return this; + }, + + finishSequenceExpression: function (expressions) { + this.type = Syntax.SequenceExpression; + this.expressions = expressions; + this.finish(); + return this; + }, + + finishSpreadElement: function (argument) { + this.type = Syntax.SpreadElement; + this.argument = argument; + this.finish(); + return this; + }, + + finishSwitchCase: function (test, consequent) { + this.type = Syntax.SwitchCase; + this.test = test; + this.consequent = consequent; + this.finish(); + return this; + }, + + finishSuper: function () { + this.type = Syntax.Super; + this.finish(); + return this; + }, + + finishSwitchStatement: function (discriminant, cases) { + this.type = Syntax.SwitchStatement; + this.discriminant = discriminant; + this.cases = cases; + this.finish(); + return this; + }, + + finishTaggedTemplateExpression: function (tag, quasi) { + this.type = Syntax.TaggedTemplateExpression; + this.tag = tag; + this.quasi = quasi; + this.finish(); + return this; + }, + + finishTemplateElement: function (value, tail) { + this.type = Syntax.TemplateElement; + this.value = value; + this.tail = tail; + this.finish(); + return this; + }, + + finishTemplateLiteral: function (quasis, expressions) { + this.type = Syntax.TemplateLiteral; + this.quasis = quasis; + this.expressions = expressions; + this.finish(); + return this; + }, + + finishThisExpression: function () { + this.type = Syntax.ThisExpression; + this.finish(); + return this; + }, + + finishThrowStatement: function (argument) { + this.type = Syntax.ThrowStatement; + this.argument = argument; + this.finish(); + return this; + }, + + finishTryStatement: function (block, handler, finalizer) { + this.type = Syntax.TryStatement; + this.block = block; + this.guardedHandlers = []; + this.handlers = handler ? [handler] : []; + this.handler = handler; + this.finalizer = finalizer; + this.finish(); + return this; + }, + + finishUnaryExpression: function (operator, argument) { + this.type = (operator === '++' || operator === '--') ? Syntax.UpdateExpression : Syntax.UnaryExpression; + this.operator = operator; + this.argument = argument; + this.prefix = true; + this.finish(); + return this; + }, + + finishVariableDeclaration: function (declarations) { + this.type = Syntax.VariableDeclaration; + this.declarations = declarations; + this.kind = 'var'; + this.finish(); + return this; + }, + + finishLexicalDeclaration: function (declarations, kind) { + this.type = Syntax.VariableDeclaration; + this.declarations = declarations; + this.kind = kind; + this.finish(); + return this; + }, + + finishVariableDeclarator: function (id, init) { + this.type = Syntax.VariableDeclarator; + this.id = id; + this.init = init; + this.finish(); + return this; + }, + + finishWhileStatement: function (test, body) { + this.type = Syntax.WhileStatement; + this.test = test; + this.body = body; + this.finish(); + return this; + }, + + finishWithStatement: function (object, body) { + this.type = Syntax.WithStatement; + this.object = object; + this.body = body; + this.finish(); + return this; + }, + + finishExportSpecifier: function (local, exported) { + this.type = Syntax.ExportSpecifier; + this.exported = exported || local; + this.local = local; + this.finish(); + return this; + }, + + finishImportDefaultSpecifier: function (local) { + this.type = Syntax.ImportDefaultSpecifier; + this.local = local; + this.finish(); + return this; + }, + + finishImportNamespaceSpecifier: function (local) { + this.type = Syntax.ImportNamespaceSpecifier; + this.local = local; + this.finish(); + return this; + }, + + finishExportNamedDeclaration: function (declaration, specifiers, src) { + this.type = Syntax.ExportNamedDeclaration; + this.declaration = declaration; + this.specifiers = specifiers; + this.source = src; + this.finish(); + return this; + }, + + finishExportDefaultDeclaration: function (declaration) { + this.type = Syntax.ExportDefaultDeclaration; + this.declaration = declaration; + this.finish(); + return this; + }, + + finishExportAllDeclaration: function (src) { + this.type = Syntax.ExportAllDeclaration; + this.source = src; + this.finish(); + return this; + }, + + finishImportSpecifier: function (local, imported) { + this.type = Syntax.ImportSpecifier; + this.local = local || imported; + this.imported = imported; + this.finish(); + return this; + }, + + finishImportDeclaration: function (specifiers, src) { + this.type = Syntax.ImportDeclaration; + this.specifiers = specifiers; + this.source = src; + this.finish(); + return this; + }, + + finishYieldExpression: function (argument, delegate) { + this.type = Syntax.YieldExpression; + this.argument = argument; + this.delegate = delegate; + this.finish(); + return this; + } + }; + + + function recordError(error) { + var e, existing; + + for (e = 0; e < extra.errors.length; e++) { + existing = extra.errors[e]; + // Prevent duplicated error. + /* istanbul ignore next */ + if (existing.index === error.index && existing.message === error.message) { + return; + } + } + + extra.errors.push(error); + } + + function constructError(msg, column) { + var error = new Error(msg); + try { + throw error; + } catch (base) { + /* istanbul ignore else */ + if (Object.create && Object.defineProperty) { + error = Object.create(base); + Object.defineProperty(error, 'column', { value: column }); + } + } finally { + return error; + } + } + + function createError(line, pos, description) { + var msg, column, error; + + msg = 'Line ' + line + ': ' + description; + column = pos - (scanning ? lineStart : lastLineStart) + 1; + error = constructError(msg, column); + error.lineNumber = line; + error.description = description; + error.index = pos; + return error; + } + + // Throw an exception + + function throwError(messageFormat) { + var args, msg; + + args = Array.prototype.slice.call(arguments, 1); + msg = messageFormat.replace(/%(\d)/g, + function (whole, idx) { + assert(idx < args.length, 'Message reference must be in range'); + return args[idx]; + } + ); + + throw createError(lastLineNumber, lastIndex, msg); + } + + function tolerateError(messageFormat) { + var args, msg, error; + + args = Array.prototype.slice.call(arguments, 1); + /* istanbul ignore next */ + msg = messageFormat.replace(/%(\d)/g, + function (whole, idx) { + assert(idx < args.length, 'Message reference must be in range'); + return args[idx]; + } + ); + + error = createError(lineNumber, lastIndex, msg); + if (extra.errors) { + recordError(error); + } else { + throw error; + } + } + + // Throw an exception because of the token. + + function unexpectedTokenError(token, message) { + var value, msg = message || Messages.UnexpectedToken; + + if (token) { + if (!message) { + msg = (token.type === Token.EOF) ? Messages.UnexpectedEOS : + (token.type === Token.Identifier) ? Messages.UnexpectedIdentifier : + (token.type === Token.NumericLiteral) ? Messages.UnexpectedNumber : + (token.type === Token.StringLiteral) ? Messages.UnexpectedString : + (token.type === Token.Template) ? Messages.UnexpectedTemplate : + Messages.UnexpectedToken; + + if (token.type === Token.Keyword) { + if (isFutureReservedWord(token.value)) { + msg = Messages.UnexpectedReserved; + } else if (strict && isStrictModeReservedWord(token.value)) { + msg = Messages.StrictReservedWord; + } + } + } + + value = (token.type === Token.Template) ? token.value.raw : token.value; + } else { + value = 'ILLEGAL'; + } + + msg = msg.replace('%0', value); + + return (token && typeof token.lineNumber === 'number') ? + createError(token.lineNumber, token.start, msg) : + createError(scanning ? lineNumber : lastLineNumber, scanning ? index : lastIndex, msg); + } + + function throwUnexpectedToken(token, message) { + throw unexpectedTokenError(token, message); + } + + function tolerateUnexpectedToken(token, message) { + var error = unexpectedTokenError(token, message); + if (extra.errors) { + recordError(error); + } else { + throw error; + } + } + + // Expect the next token to match the specified punctuator. + // If not, an exception will be thrown. + + function expect(value) { + var token = lex(); + if (token.type !== Token.Punctuator || token.value !== value) { + throwUnexpectedToken(token); + } + } + + /** + * @name expectCommaSeparator + * @description Quietly expect a comma when in tolerant mode, otherwise delegates + * to expect(value) + * @since 2.0 + */ + function expectCommaSeparator() { + var token; + + if (extra.errors) { + token = lookahead; + if (token.type === Token.Punctuator && token.value === ',') { + lex(); + } else if (token.type === Token.Punctuator && token.value === ';') { + lex(); + tolerateUnexpectedToken(token); + } else { + tolerateUnexpectedToken(token, Messages.UnexpectedToken); + } + } else { + expect(','); + } + } + + // Expect the next token to match the specified keyword. + // If not, an exception will be thrown. + + function expectKeyword(keyword) { + var token = lex(); + if (token.type !== Token.Keyword || token.value !== keyword) { + throwUnexpectedToken(token); + } + } + + // Return true if the next token matches the specified punctuator. + + function match(value) { + return lookahead.type === Token.Punctuator && lookahead.value === value; + } + + // Return true if the next token matches the specified keyword + + function matchKeyword(keyword) { + return lookahead.type === Token.Keyword && lookahead.value === keyword; + } + + // Return true if the next token matches the specified contextual keyword + // (where an identifier is sometimes a keyword depending on the context) + + function matchContextualKeyword(keyword) { + return lookahead.type === Token.Identifier && lookahead.value === keyword; + } + + // Return true if the next token is an assignment operator + + function matchAssign() { + var op; + + if (lookahead.type !== Token.Punctuator) { + return false; + } + op = lookahead.value; + return op === '=' || + op === '*=' || + op === '/=' || + op === '%=' || + op === '+=' || + op === '-=' || + op === '<<=' || + op === '>>=' || + op === '>>>=' || + op === '&=' || + op === '^=' || + op === '|='; + } + + function consumeSemicolon() { + // Catch the very common case first: immediately a semicolon (U+003B). + if (source.charCodeAt(startIndex) === 0x3B || match(';')) { + lex(); + return; + } + + if (hasLineTerminator) { + return; + } + + // FIXME(ikarienator): this is seemingly an issue in the previous location info convention. + lastIndex = startIndex; + lastLineNumber = startLineNumber; + lastLineStart = startLineStart; + + if (lookahead.type !== Token.EOF && !match('}')) { + throwUnexpectedToken(lookahead); + } + } + + // Cover grammar support. + // + // When an assignment expression position starts with an left parenthesis, the determination of the type + // of the syntax is to be deferred arbitrarily long until the end of the parentheses pair (plus a lookahead) + // or the first comma. This situation also defers the determination of all the expressions nested in the pair. + // + // There are three productions that can be parsed in a parentheses pair that needs to be determined + // after the outermost pair is closed. They are: + // + // 1. AssignmentExpression + // 2. BindingElements + // 3. AssignmentTargets + // + // In order to avoid exponential backtracking, we use two flags to denote if the production can be + // binding element or assignment target. + // + // The three productions have the relationship: + // + // BindingElements ⊆ AssignmentTargets ⊆ AssignmentExpression + // + // with a single exception that CoverInitializedName when used directly in an Expression, generates + // an early error. Therefore, we need the third state, firstCoverInitializedNameError, to track the + // first usage of CoverInitializedName and report it when we reached the end of the parentheses pair. + // + // isolateCoverGrammar function runs the given parser function with a new cover grammar context, and it does not + // effect the current flags. This means the production the parser parses is only used as an expression. Therefore + // the CoverInitializedName check is conducted. + // + // inheritCoverGrammar function runs the given parse function with a new cover grammar context, and it propagates + // the flags outside of the parser. This means the production the parser parses is used as a part of a potential + // pattern. The CoverInitializedName check is deferred. + function isolateCoverGrammar(parser) { + var oldIsBindingElement = isBindingElement, + oldIsAssignmentTarget = isAssignmentTarget, + oldFirstCoverInitializedNameError = firstCoverInitializedNameError, + result; + isBindingElement = true; + isAssignmentTarget = true; + firstCoverInitializedNameError = null; + result = parser(); + if (firstCoverInitializedNameError !== null) { + throwUnexpectedToken(firstCoverInitializedNameError); + } + isBindingElement = oldIsBindingElement; + isAssignmentTarget = oldIsAssignmentTarget; + firstCoverInitializedNameError = oldFirstCoverInitializedNameError; + return result; + } + + function inheritCoverGrammar(parser) { + var oldIsBindingElement = isBindingElement, + oldIsAssignmentTarget = isAssignmentTarget, + oldFirstCoverInitializedNameError = firstCoverInitializedNameError, + result; + isBindingElement = true; + isAssignmentTarget = true; + firstCoverInitializedNameError = null; + result = parser(); + isBindingElement = isBindingElement && oldIsBindingElement; + isAssignmentTarget = isAssignmentTarget && oldIsAssignmentTarget; + firstCoverInitializedNameError = oldFirstCoverInitializedNameError || firstCoverInitializedNameError; + return result; + } + + // ECMA-262 13.3.3 Destructuring Binding Patterns + + function parseArrayPattern(params, kind) { + var node = new Node(), elements = [], rest, restNode; + expect('['); + + while (!match(']')) { + if (match(',')) { + lex(); + elements.push(null); + } else { + if (match('...')) { + restNode = new Node(); + lex(); + params.push(lookahead); + rest = parseVariableIdentifier(kind); + elements.push(restNode.finishRestElement(rest)); + break; + } else { + elements.push(parsePatternWithDefault(params, kind)); + } + if (!match(']')) { + expect(','); + } + } + + } + + expect(']'); + + return node.finishArrayPattern(elements); + } + + function parsePropertyPattern(params, kind) { + var node = new Node(), key, keyToken, computed = match('['), init; + if (lookahead.type === Token.Identifier) { + keyToken = lookahead; + key = parseVariableIdentifier(); + if (match('=')) { + params.push(keyToken); + lex(); + init = parseAssignmentExpression(); + + return node.finishProperty( + 'init', key, false, + new WrappingNode(keyToken).finishAssignmentPattern(key, init), false, true); + } else if (!match(':')) { + params.push(keyToken); + return node.finishProperty('init', key, false, key, false, true); + } + } else { + key = parseObjectPropertyKey(); + } + expect(':'); + init = parsePatternWithDefault(params, kind); + return node.finishProperty('init', key, computed, init, false, false); + } + + function parseObjectPattern(params, kind) { + var node = new Node(), properties = []; + + expect('{'); + + while (!match('}')) { + properties.push(parsePropertyPattern(params, kind)); + if (!match('}')) { + expect(','); + } + } + + lex(); + + return node.finishObjectPattern(properties); + } + + function parsePattern(params, kind) { + if (match('[')) { + return parseArrayPattern(params, kind); + } else if (match('{')) { + return parseObjectPattern(params, kind); + } else if (matchKeyword('let')) { + if (kind === 'const' || kind === 'let') { + tolerateUnexpectedToken(lookahead, Messages.UnexpectedToken); + } + } + + params.push(lookahead); + return parseVariableIdentifier(kind); + } + + function parsePatternWithDefault(params, kind) { + var startToken = lookahead, pattern, previousAllowYield, right; + pattern = parsePattern(params, kind); + if (match('=')) { + lex(); + previousAllowYield = state.allowYield; + state.allowYield = true; + right = isolateCoverGrammar(parseAssignmentExpression); + state.allowYield = previousAllowYield; + pattern = new WrappingNode(startToken).finishAssignmentPattern(pattern, right); + } + return pattern; + } + + // ECMA-262 12.2.5 Array Initializer + + function parseArrayInitializer() { + var elements = [], node = new Node(), restSpread; + + expect('['); + + while (!match(']')) { + if (match(',')) { + lex(); + elements.push(null); + } else if (match('...')) { + restSpread = new Node(); + lex(); + restSpread.finishSpreadElement(inheritCoverGrammar(parseAssignmentExpression)); + + if (!match(']')) { + isAssignmentTarget = isBindingElement = false; + expect(','); + } + elements.push(restSpread); + } else { + elements.push(inheritCoverGrammar(parseAssignmentExpression)); + + if (!match(']')) { + expect(','); + } + } + } + + lex(); + + return node.finishArrayExpression(elements); + } + + // ECMA-262 12.2.6 Object Initializer + + function parsePropertyFunction(node, paramInfo, isGenerator) { + var previousStrict, body; + + isAssignmentTarget = isBindingElement = false; + + previousStrict = strict; + body = isolateCoverGrammar(parseFunctionSourceElements); + + if (strict && paramInfo.firstRestricted) { + tolerateUnexpectedToken(paramInfo.firstRestricted, paramInfo.message); + } + if (strict && paramInfo.stricted) { + tolerateUnexpectedToken(paramInfo.stricted, paramInfo.message); + } + + strict = previousStrict; + return node.finishFunctionExpression(null, paramInfo.params, paramInfo.defaults, body, isGenerator); + } + + function parsePropertyMethodFunction() { + var params, method, node = new Node(), + previousAllowYield = state.allowYield; + + state.allowYield = false; + params = parseParams(); + state.allowYield = previousAllowYield; + + state.allowYield = false; + method = parsePropertyFunction(node, params, false); + state.allowYield = previousAllowYield; + + return method; + } + + function parseObjectPropertyKey() { + var token, node = new Node(), expr; + + token = lex(); + + // Note: This function is called only from parseObjectProperty(), where + // EOF and Punctuator tokens are already filtered out. + + switch (token.type) { + case Token.StringLiteral: + case Token.NumericLiteral: + if (strict && token.octal) { + tolerateUnexpectedToken(token, Messages.StrictOctalLiteral); + } + return node.finishLiteral(token); + case Token.Identifier: + case Token.BooleanLiteral: + case Token.NullLiteral: + case Token.Keyword: + return node.finishIdentifier(token.value); + case Token.Punctuator: + if (token.value === '[') { + expr = isolateCoverGrammar(parseAssignmentExpression); + expect(']'); + return expr; + } + break; + } + throwUnexpectedToken(token); + } + + function lookaheadPropertyName() { + switch (lookahead.type) { + case Token.Identifier: + case Token.StringLiteral: + case Token.BooleanLiteral: + case Token.NullLiteral: + case Token.NumericLiteral: + case Token.Keyword: + return true; + case Token.Punctuator: + return lookahead.value === '['; + } + return false; + } + + // This function is to try to parse a MethodDefinition as defined in 14.3. But in the case of object literals, + // it might be called at a position where there is in fact a short hand identifier pattern or a data property. + // This can only be determined after we consumed up to the left parentheses. + // + // In order to avoid back tracking, it returns `null` if the position is not a MethodDefinition and the caller + // is responsible to visit other options. + function tryParseMethodDefinition(token, key, computed, node) { + var value, options, methodNode, params, + previousAllowYield = state.allowYield; + + if (token.type === Token.Identifier) { + // check for `get` and `set`; + + if (token.value === 'get' && lookaheadPropertyName()) { + computed = match('['); + key = parseObjectPropertyKey(); + methodNode = new Node(); + expect('('); + expect(')'); + + state.allowYield = false; + value = parsePropertyFunction(methodNode, { + params: [], + defaults: [], + stricted: null, + firstRestricted: null, + message: null + }, false); + state.allowYield = previousAllowYield; + + return node.finishProperty('get', key, computed, value, false, false); + } else if (token.value === 'set' && lookaheadPropertyName()) { + computed = match('['); + key = parseObjectPropertyKey(); + methodNode = new Node(); + expect('('); + + options = { + params: [], + defaultCount: 0, + defaults: [], + firstRestricted: null, + paramSet: {} + }; + if (match(')')) { + tolerateUnexpectedToken(lookahead); + } else { + state.allowYield = false; + parseParam(options); + state.allowYield = previousAllowYield; + if (options.defaultCount === 0) { + options.defaults = []; + } + } + expect(')'); + + state.allowYield = false; + value = parsePropertyFunction(methodNode, options, false); + state.allowYield = previousAllowYield; + + return node.finishProperty('set', key, computed, value, false, false); + } + } else if (token.type === Token.Punctuator && token.value === '*' && lookaheadPropertyName()) { + computed = match('['); + key = parseObjectPropertyKey(); + methodNode = new Node(); + + state.allowYield = true; + params = parseParams(); + state.allowYield = previousAllowYield; + + state.allowYield = false; + value = parsePropertyFunction(methodNode, params, true); + state.allowYield = previousAllowYield; + + return node.finishProperty('init', key, computed, value, true, false); + } + + if (key && match('(')) { + value = parsePropertyMethodFunction(); + return node.finishProperty('init', key, computed, value, true, false); + } + + // Not a MethodDefinition. + return null; + } + + function parseObjectProperty(hasProto) { + var token = lookahead, node = new Node(), computed, key, maybeMethod, proto, value; + + computed = match('['); + if (match('*')) { + lex(); + } else { + key = parseObjectPropertyKey(); + } + maybeMethod = tryParseMethodDefinition(token, key, computed, node); + if (maybeMethod) { + return maybeMethod; + } + + if (!key) { + throwUnexpectedToken(lookahead); + } + + // Check for duplicated __proto__ + if (!computed) { + proto = (key.type === Syntax.Identifier && key.name === '__proto__') || + (key.type === Syntax.Literal && key.value === '__proto__'); + if (hasProto.value && proto) { + tolerateError(Messages.DuplicateProtoProperty); + } + hasProto.value |= proto; + } + + if (match(':')) { + lex(); + value = inheritCoverGrammar(parseAssignmentExpression); + return node.finishProperty('init', key, computed, value, false, false); + } + + if (token.type === Token.Identifier) { + if (match('=')) { + firstCoverInitializedNameError = lookahead; + lex(); + value = isolateCoverGrammar(parseAssignmentExpression); + return node.finishProperty('init', key, computed, + new WrappingNode(token).finishAssignmentPattern(key, value), false, true); + } + return node.finishProperty('init', key, computed, key, false, true); + } + + throwUnexpectedToken(lookahead); + } + + function parseObjectInitializer() { + var properties = [], hasProto = {value: false}, node = new Node(); + + expect('{'); + + while (!match('}')) { + properties.push(parseObjectProperty(hasProto)); + + if (!match('}')) { + expectCommaSeparator(); + } + } + + expect('}'); + + return node.finishObjectExpression(properties); + } + + function reinterpretExpressionAsPattern(expr) { + var i; + switch (expr.type) { + case Syntax.Identifier: + case Syntax.MemberExpression: + case Syntax.RestElement: + case Syntax.AssignmentPattern: + break; + case Syntax.SpreadElement: + expr.type = Syntax.RestElement; + reinterpretExpressionAsPattern(expr.argument); + break; + case Syntax.ArrayExpression: + expr.type = Syntax.ArrayPattern; + for (i = 0; i < expr.elements.length; i++) { + if (expr.elements[i] !== null) { + reinterpretExpressionAsPattern(expr.elements[i]); + } + } + break; + case Syntax.ObjectExpression: + expr.type = Syntax.ObjectPattern; + for (i = 0; i < expr.properties.length; i++) { + reinterpretExpressionAsPattern(expr.properties[i].value); + } + break; + case Syntax.AssignmentExpression: + expr.type = Syntax.AssignmentPattern; + reinterpretExpressionAsPattern(expr.left); + break; + default: + // Allow other node type for tolerant parsing. + break; + } + } + + // ECMA-262 12.2.9 Template Literals + + function parseTemplateElement(option) { + var node, token; + + if (lookahead.type !== Token.Template || (option.head && !lookahead.head)) { + throwUnexpectedToken(); + } + + node = new Node(); + token = lex(); + + return node.finishTemplateElement({ raw: token.value.raw, cooked: token.value.cooked }, token.tail); + } + + function parseTemplateLiteral() { + var quasi, quasis, expressions, node = new Node(); + + quasi = parseTemplateElement({ head: true }); + quasis = [quasi]; + expressions = []; + + while (!quasi.tail) { + expressions.push(parseExpression()); + quasi = parseTemplateElement({ head: false }); + quasis.push(quasi); + } + + return node.finishTemplateLiteral(quasis, expressions); + } + + // ECMA-262 12.2.10 The Grouping Operator + + function parseGroupExpression() { + var expr, expressions, startToken, i, params = []; + + expect('('); + + if (match(')')) { + lex(); + if (!match('=>')) { + expect('=>'); + } + return { + type: PlaceHolders.ArrowParameterPlaceHolder, + params: [], + rawParams: [] + }; + } + + startToken = lookahead; + if (match('...')) { + expr = parseRestElement(params); + expect(')'); + if (!match('=>')) { + expect('=>'); + } + return { + type: PlaceHolders.ArrowParameterPlaceHolder, + params: [expr] + }; + } + + isBindingElement = true; + expr = inheritCoverGrammar(parseAssignmentExpression); + + if (match(',')) { + isAssignmentTarget = false; + expressions = [expr]; + + while (startIndex < length) { + if (!match(',')) { + break; + } + lex(); + + if (match('...')) { + if (!isBindingElement) { + throwUnexpectedToken(lookahead); + } + expressions.push(parseRestElement(params)); + expect(')'); + if (!match('=>')) { + expect('=>'); + } + isBindingElement = false; + for (i = 0; i < expressions.length; i++) { + reinterpretExpressionAsPattern(expressions[i]); + } + return { + type: PlaceHolders.ArrowParameterPlaceHolder, + params: expressions + }; + } + + expressions.push(inheritCoverGrammar(parseAssignmentExpression)); + } + + expr = new WrappingNode(startToken).finishSequenceExpression(expressions); + } + + + expect(')'); + + if (match('=>')) { + if (expr.type === Syntax.Identifier && expr.name === 'yield') { + return { + type: PlaceHolders.ArrowParameterPlaceHolder, + params: [expr] + }; + } + + if (!isBindingElement) { + throwUnexpectedToken(lookahead); + } + + if (expr.type === Syntax.SequenceExpression) { + for (i = 0; i < expr.expressions.length; i++) { + reinterpretExpressionAsPattern(expr.expressions[i]); + } + } else { + reinterpretExpressionAsPattern(expr); + } + + expr = { + type: PlaceHolders.ArrowParameterPlaceHolder, + params: expr.type === Syntax.SequenceExpression ? expr.expressions : [expr] + }; + } + isBindingElement = false; + return expr; + } + + + // ECMA-262 12.2 Primary Expressions + + function parsePrimaryExpression() { + var type, token, expr, node; + + if (match('(')) { + isBindingElement = false; + return inheritCoverGrammar(parseGroupExpression); + } + + if (match('[')) { + return inheritCoverGrammar(parseArrayInitializer); + } + + if (match('{')) { + return inheritCoverGrammar(parseObjectInitializer); + } + + type = lookahead.type; + node = new Node(); + + if (type === Token.Identifier) { + if (state.sourceType === 'module' && lookahead.value === 'await') { + tolerateUnexpectedToken(lookahead); + } + expr = node.finishIdentifier(lex().value); + } else if (type === Token.StringLiteral || type === Token.NumericLiteral) { + isAssignmentTarget = isBindingElement = false; + if (strict && lookahead.octal) { + tolerateUnexpectedToken(lookahead, Messages.StrictOctalLiteral); + } + expr = node.finishLiteral(lex()); + } else if (type === Token.Keyword) { + if (!strict && state.allowYield && matchKeyword('yield')) { + return parseNonComputedProperty(); + } + if (!strict && matchKeyword('let')) { + return node.finishIdentifier(lex().value); + } + isAssignmentTarget = isBindingElement = false; + if (matchKeyword('function')) { + return parseFunctionExpression(); + } + if (matchKeyword('this')) { + lex(); + return node.finishThisExpression(); + } + if (matchKeyword('class')) { + return parseClassExpression(); + } + throwUnexpectedToken(lex()); + } else if (type === Token.BooleanLiteral) { + isAssignmentTarget = isBindingElement = false; + token = lex(); + token.value = (token.value === 'true'); + expr = node.finishLiteral(token); + } else if (type === Token.NullLiteral) { + isAssignmentTarget = isBindingElement = false; + token = lex(); + token.value = null; + expr = node.finishLiteral(token); + } else if (match('/') || match('/=')) { + isAssignmentTarget = isBindingElement = false; + index = startIndex; + + if (typeof extra.tokens !== 'undefined') { + token = collectRegex(); + } else { + token = scanRegExp(); + } + lex(); + expr = node.finishLiteral(token); + } else if (type === Token.Template) { + expr = parseTemplateLiteral(); + } else { + throwUnexpectedToken(lex()); + } + + return expr; + } + + // ECMA-262 12.3 Left-Hand-Side Expressions + + function parseArguments() { + var args = [], expr; + + expect('('); + + if (!match(')')) { + while (startIndex < length) { + if (match('...')) { + expr = new Node(); + lex(); + expr.finishSpreadElement(isolateCoverGrammar(parseAssignmentExpression)); + } else { + expr = isolateCoverGrammar(parseAssignmentExpression); + } + args.push(expr); + if (match(')')) { + break; + } + expectCommaSeparator(); + } + } + + expect(')'); + + return args; + } + + function parseNonComputedProperty() { + var token, node = new Node(); + + token = lex(); + + if (!isIdentifierName(token)) { + throwUnexpectedToken(token); + } + + return node.finishIdentifier(token.value); + } + + function parseNonComputedMember() { + expect('.'); + + return parseNonComputedProperty(); + } + + function parseComputedMember() { + var expr; + + expect('['); + + expr = isolateCoverGrammar(parseExpression); + + expect(']'); + + return expr; + } + + // ECMA-262 12.3.3 The new Operator + + function parseNewExpression() { + var callee, args, node = new Node(); + + expectKeyword('new'); + + if (match('.')) { + lex(); + if (lookahead.type === Token.Identifier && lookahead.value === 'target') { + if (state.inFunctionBody) { + lex(); + return node.finishMetaProperty('new', 'target'); + } + } + throwUnexpectedToken(lookahead); + } + + callee = isolateCoverGrammar(parseLeftHandSideExpression); + args = match('(') ? parseArguments() : []; + + isAssignmentTarget = isBindingElement = false; + + return node.finishNewExpression(callee, args); + } + + // ECMA-262 12.3.4 Function Calls + + function parseLeftHandSideExpressionAllowCall() { + var quasi, expr, args, property, startToken, previousAllowIn = state.allowIn; + + startToken = lookahead; + state.allowIn = true; + + if (matchKeyword('super') && state.inFunctionBody) { + expr = new Node(); + lex(); + expr = expr.finishSuper(); + if (!match('(') && !match('.') && !match('[')) { + throwUnexpectedToken(lookahead); + } + } else { + expr = inheritCoverGrammar(matchKeyword('new') ? parseNewExpression : parsePrimaryExpression); + } + + for (;;) { + if (match('.')) { + isBindingElement = false; + isAssignmentTarget = true; + property = parseNonComputedMember(); + expr = new WrappingNode(startToken).finishMemberExpression('.', expr, property); + } else if (match('(')) { + isBindingElement = false; + isAssignmentTarget = false; + args = parseArguments(); + expr = new WrappingNode(startToken).finishCallExpression(expr, args); + } else if (match('[')) { + isBindingElement = false; + isAssignmentTarget = true; + property = parseComputedMember(); + expr = new WrappingNode(startToken).finishMemberExpression('[', expr, property); + } else if (lookahead.type === Token.Template && lookahead.head) { + quasi = parseTemplateLiteral(); + expr = new WrappingNode(startToken).finishTaggedTemplateExpression(expr, quasi); + } else { + break; + } + } + state.allowIn = previousAllowIn; + + return expr; + } + + // ECMA-262 12.3 Left-Hand-Side Expressions + + function parseLeftHandSideExpression() { + var quasi, expr, property, startToken; + assert(state.allowIn, 'callee of new expression always allow in keyword.'); + + startToken = lookahead; + + if (matchKeyword('super') && state.inFunctionBody) { + expr = new Node(); + lex(); + expr = expr.finishSuper(); + if (!match('[') && !match('.')) { + throwUnexpectedToken(lookahead); + } + } else { + expr = inheritCoverGrammar(matchKeyword('new') ? parseNewExpression : parsePrimaryExpression); + } + + for (;;) { + if (match('[')) { + isBindingElement = false; + isAssignmentTarget = true; + property = parseComputedMember(); + expr = new WrappingNode(startToken).finishMemberExpression('[', expr, property); + } else if (match('.')) { + isBindingElement = false; + isAssignmentTarget = true; + property = parseNonComputedMember(); + expr = new WrappingNode(startToken).finishMemberExpression('.', expr, property); + } else if (lookahead.type === Token.Template && lookahead.head) { + quasi = parseTemplateLiteral(); + expr = new WrappingNode(startToken).finishTaggedTemplateExpression(expr, quasi); + } else { + break; + } + } + return expr; + } + + // ECMA-262 12.4 Postfix Expressions + + function parsePostfixExpression() { + var expr, token, startToken = lookahead; + + expr = inheritCoverGrammar(parseLeftHandSideExpressionAllowCall); + + if (!hasLineTerminator && lookahead.type === Token.Punctuator) { + if (match('++') || match('--')) { + // ECMA-262 11.3.1, 11.3.2 + if (strict && expr.type === Syntax.Identifier && isRestrictedWord(expr.name)) { + tolerateError(Messages.StrictLHSPostfix); + } + + if (!isAssignmentTarget) { + tolerateError(Messages.InvalidLHSInAssignment); + } + + isAssignmentTarget = isBindingElement = false; + + token = lex(); + expr = new WrappingNode(startToken).finishPostfixExpression(token.value, expr); + } + } + + return expr; + } + + // ECMA-262 12.5 Unary Operators + + function parseUnaryExpression() { + var token, expr, startToken; + + if (lookahead.type !== Token.Punctuator && lookahead.type !== Token.Keyword) { + expr = parsePostfixExpression(); + } else if (match('++') || match('--')) { + startToken = lookahead; + token = lex(); + expr = inheritCoverGrammar(parseUnaryExpression); + // ECMA-262 11.4.4, 11.4.5 + if (strict && expr.type === Syntax.Identifier && isRestrictedWord(expr.name)) { + tolerateError(Messages.StrictLHSPrefix); + } + + if (!isAssignmentTarget) { + tolerateError(Messages.InvalidLHSInAssignment); + } + expr = new WrappingNode(startToken).finishUnaryExpression(token.value, expr); + isAssignmentTarget = isBindingElement = false; + } else if (match('+') || match('-') || match('~') || match('!')) { + startToken = lookahead; + token = lex(); + expr = inheritCoverGrammar(parseUnaryExpression); + expr = new WrappingNode(startToken).finishUnaryExpression(token.value, expr); + isAssignmentTarget = isBindingElement = false; + } else if (matchKeyword('delete') || matchKeyword('void') || matchKeyword('typeof')) { + startToken = lookahead; + token = lex(); + expr = inheritCoverGrammar(parseUnaryExpression); + expr = new WrappingNode(startToken).finishUnaryExpression(token.value, expr); + if (strict && expr.operator === 'delete' && expr.argument.type === Syntax.Identifier) { + tolerateError(Messages.StrictDelete); + } + isAssignmentTarget = isBindingElement = false; + } else { + expr = parsePostfixExpression(); + } + + return expr; + } + + function binaryPrecedence(token, allowIn) { + var prec = 0; + + if (token.type !== Token.Punctuator && token.type !== Token.Keyword) { + return 0; + } + + switch (token.value) { + case '||': + prec = 1; + break; + + case '&&': + prec = 2; + break; + + case '|': + prec = 3; + break; + + case '^': + prec = 4; + break; + + case '&': + prec = 5; + break; + + case '==': + case '!=': + case '===': + case '!==': + prec = 6; + break; + + case '<': + case '>': + case '<=': + case '>=': + case 'instanceof': + prec = 7; + break; + + case 'in': + prec = allowIn ? 7 : 0; + break; + + case '<<': + case '>>': + case '>>>': + prec = 8; + break; + + case '+': + case '-': + prec = 9; + break; + + case '*': + case '/': + case '%': + prec = 11; + break; + + default: + break; + } + + return prec; + } + + // ECMA-262 12.6 Multiplicative Operators + // ECMA-262 12.7 Additive Operators + // ECMA-262 12.8 Bitwise Shift Operators + // ECMA-262 12.9 Relational Operators + // ECMA-262 12.10 Equality Operators + // ECMA-262 12.11 Binary Bitwise Operators + // ECMA-262 12.12 Binary Logical Operators + + function parseBinaryExpression() { + var marker, markers, expr, token, prec, stack, right, operator, left, i; + + marker = lookahead; + left = inheritCoverGrammar(parseUnaryExpression); + + token = lookahead; + prec = binaryPrecedence(token, state.allowIn); + if (prec === 0) { + return left; + } + isAssignmentTarget = isBindingElement = false; + token.prec = prec; + lex(); + + markers = [marker, lookahead]; + right = isolateCoverGrammar(parseUnaryExpression); + + stack = [left, token, right]; + + while ((prec = binaryPrecedence(lookahead, state.allowIn)) > 0) { + + // Reduce: make a binary expression from the three topmost entries. + while ((stack.length > 2) && (prec <= stack[stack.length - 2].prec)) { + right = stack.pop(); + operator = stack.pop().value; + left = stack.pop(); + markers.pop(); + expr = new WrappingNode(markers[markers.length - 1]).finishBinaryExpression(operator, left, right); + stack.push(expr); + } + + // Shift. + token = lex(); + token.prec = prec; + stack.push(token); + markers.push(lookahead); + expr = isolateCoverGrammar(parseUnaryExpression); + stack.push(expr); + } + + // Final reduce to clean-up the stack. + i = stack.length - 1; + expr = stack[i]; + markers.pop(); + while (i > 1) { + expr = new WrappingNode(markers.pop()).finishBinaryExpression(stack[i - 1].value, stack[i - 2], expr); + i -= 2; + } + + return expr; + } + + + // ECMA-262 12.13 Conditional Operator + + function parseConditionalExpression() { + var expr, previousAllowIn, consequent, alternate, startToken; + + startToken = lookahead; + + expr = inheritCoverGrammar(parseBinaryExpression); + if (match('?')) { + lex(); + previousAllowIn = state.allowIn; + state.allowIn = true; + consequent = isolateCoverGrammar(parseAssignmentExpression); + state.allowIn = previousAllowIn; + expect(':'); + alternate = isolateCoverGrammar(parseAssignmentExpression); + + expr = new WrappingNode(startToken).finishConditionalExpression(expr, consequent, alternate); + isAssignmentTarget = isBindingElement = false; + } + + return expr; + } + + // ECMA-262 14.2 Arrow Function Definitions + + function parseConciseBody() { + if (match('{')) { + return parseFunctionSourceElements(); + } + return isolateCoverGrammar(parseAssignmentExpression); + } + + function checkPatternParam(options, param) { + var i; + switch (param.type) { + case Syntax.Identifier: + validateParam(options, param, param.name); + break; + case Syntax.RestElement: + checkPatternParam(options, param.argument); + break; + case Syntax.AssignmentPattern: + checkPatternParam(options, param.left); + break; + case Syntax.ArrayPattern: + for (i = 0; i < param.elements.length; i++) { + if (param.elements[i] !== null) { + checkPatternParam(options, param.elements[i]); + } + } + break; + case Syntax.YieldExpression: + break; + default: + assert(param.type === Syntax.ObjectPattern, 'Invalid type'); + for (i = 0; i < param.properties.length; i++) { + checkPatternParam(options, param.properties[i].value); + } + break; + } + } + function reinterpretAsCoverFormalsList(expr) { + var i, len, param, params, defaults, defaultCount, options, token; + + defaults = []; + defaultCount = 0; + params = [expr]; + + switch (expr.type) { + case Syntax.Identifier: + break; + case PlaceHolders.ArrowParameterPlaceHolder: + params = expr.params; + break; + default: + return null; + } + + options = { + paramSet: {} + }; + + for (i = 0, len = params.length; i < len; i += 1) { + param = params[i]; + switch (param.type) { + case Syntax.AssignmentPattern: + params[i] = param.left; + if (param.right.type === Syntax.YieldExpression) { + if (param.right.argument) { + throwUnexpectedToken(lookahead); + } + param.right.type = Syntax.Identifier; + param.right.name = 'yield'; + delete param.right.argument; + delete param.right.delegate; + } + defaults.push(param.right); + ++defaultCount; + checkPatternParam(options, param.left); + break; + default: + checkPatternParam(options, param); + params[i] = param; + defaults.push(null); + break; + } + } + + if (strict || !state.allowYield) { + for (i = 0, len = params.length; i < len; i += 1) { + param = params[i]; + if (param.type === Syntax.YieldExpression) { + throwUnexpectedToken(lookahead); + } + } + } + + if (options.message === Messages.StrictParamDupe) { + token = strict ? options.stricted : options.firstRestricted; + throwUnexpectedToken(token, options.message); + } + + if (defaultCount === 0) { + defaults = []; + } + + return { + params: params, + defaults: defaults, + stricted: options.stricted, + firstRestricted: options.firstRestricted, + message: options.message + }; + } + + function parseArrowFunctionExpression(options, node) { + var previousStrict, previousAllowYield, body; + + if (hasLineTerminator) { + tolerateUnexpectedToken(lookahead); + } + expect('=>'); + + previousStrict = strict; + previousAllowYield = state.allowYield; + state.allowYield = true; + + body = parseConciseBody(); + + if (strict && options.firstRestricted) { + throwUnexpectedToken(options.firstRestricted, options.message); + } + if (strict && options.stricted) { + tolerateUnexpectedToken(options.stricted, options.message); + } + + strict = previousStrict; + state.allowYield = previousAllowYield; + + return node.finishArrowFunctionExpression(options.params, options.defaults, body, body.type !== Syntax.BlockStatement); + } + + // ECMA-262 14.4 Yield expression + + function parseYieldExpression() { + var argument, expr, delegate, previousAllowYield; + + argument = null; + expr = new Node(); + delegate = false; + + expectKeyword('yield'); + + if (!hasLineTerminator) { + previousAllowYield = state.allowYield; + state.allowYield = false; + delegate = match('*'); + if (delegate) { + lex(); + argument = parseAssignmentExpression(); + } else { + if (!match(';') && !match('}') && !match(')') && lookahead.type !== Token.EOF) { + argument = parseAssignmentExpression(); + } + } + state.allowYield = previousAllowYield; + } + + return expr.finishYieldExpression(argument, delegate); + } + + // ECMA-262 12.14 Assignment Operators + + function parseAssignmentExpression() { + var token, expr, right, list, startToken; + + startToken = lookahead; + token = lookahead; + + if (!state.allowYield && matchKeyword('yield')) { + return parseYieldExpression(); + } + + expr = parseConditionalExpression(); + + if (expr.type === PlaceHolders.ArrowParameterPlaceHolder || match('=>')) { + isAssignmentTarget = isBindingElement = false; + list = reinterpretAsCoverFormalsList(expr); + + if (list) { + firstCoverInitializedNameError = null; + return parseArrowFunctionExpression(list, new WrappingNode(startToken)); + } + + return expr; + } + + if (matchAssign()) { + if (!isAssignmentTarget) { + tolerateError(Messages.InvalidLHSInAssignment); + } + + // ECMA-262 12.1.1 + if (strict && expr.type === Syntax.Identifier) { + if (isRestrictedWord(expr.name)) { + tolerateUnexpectedToken(token, Messages.StrictLHSAssignment); + } + if (isStrictModeReservedWord(expr.name)) { + tolerateUnexpectedToken(token, Messages.StrictReservedWord); + } + } + + if (!match('=')) { + isAssignmentTarget = isBindingElement = false; + } else { + reinterpretExpressionAsPattern(expr); + } + + token = lex(); + right = isolateCoverGrammar(parseAssignmentExpression); + expr = new WrappingNode(startToken).finishAssignmentExpression(token.value, expr, right); + firstCoverInitializedNameError = null; + } + + return expr; + } + + // ECMA-262 12.15 Comma Operator + + function parseExpression() { + var expr, startToken = lookahead, expressions; + + expr = isolateCoverGrammar(parseAssignmentExpression); + + if (match(',')) { + expressions = [expr]; + + while (startIndex < length) { + if (!match(',')) { + break; + } + lex(); + expressions.push(isolateCoverGrammar(parseAssignmentExpression)); + } + + expr = new WrappingNode(startToken).finishSequenceExpression(expressions); + } + + return expr; + } + + // ECMA-262 13.2 Block + + function parseStatementListItem() { + if (lookahead.type === Token.Keyword) { + switch (lookahead.value) { + case 'export': + if (state.sourceType !== 'module') { + tolerateUnexpectedToken(lookahead, Messages.IllegalExportDeclaration); + } + return parseExportDeclaration(); + case 'import': + if (state.sourceType !== 'module') { + tolerateUnexpectedToken(lookahead, Messages.IllegalImportDeclaration); + } + return parseImportDeclaration(); + case 'const': + return parseLexicalDeclaration({inFor: false}); + case 'function': + return parseFunctionDeclaration(new Node()); + case 'class': + return parseClassDeclaration(); + } + } + + if (matchKeyword('let') && isLexicalDeclaration()) { + return parseLexicalDeclaration({inFor: false}); + } + + return parseStatement(); + } + + function parseStatementList() { + var list = []; + while (startIndex < length) { + if (match('}')) { + break; + } + list.push(parseStatementListItem()); + } + + return list; + } + + function parseBlock() { + var block, node = new Node(); + + expect('{'); + + block = parseStatementList(); + + expect('}'); + + return node.finishBlockStatement(block); + } + + // ECMA-262 13.3.2 Variable Statement + + function parseVariableIdentifier(kind) { + var token, node = new Node(); + + token = lex(); + + if (token.type === Token.Keyword && token.value === 'yield') { + if (strict) { + tolerateUnexpectedToken(token, Messages.StrictReservedWord); + } if (!state.allowYield) { + throwUnexpectedToken(token); + } + } else if (token.type !== Token.Identifier) { + if (strict && token.type === Token.Keyword && isStrictModeReservedWord(token.value)) { + tolerateUnexpectedToken(token, Messages.StrictReservedWord); + } else { + if (strict || token.value !== 'let' || kind !== 'var') { + throwUnexpectedToken(token); + } + } + } else if (state.sourceType === 'module' && token.type === Token.Identifier && token.value === 'await') { + tolerateUnexpectedToken(token); + } + + return node.finishIdentifier(token.value); + } + + function parseVariableDeclaration(options) { + var init = null, id, node = new Node(), params = []; + + id = parsePattern(params, 'var'); + + // ECMA-262 12.2.1 + if (strict && isRestrictedWord(id.name)) { + tolerateError(Messages.StrictVarName); + } + + if (match('=')) { + lex(); + init = isolateCoverGrammar(parseAssignmentExpression); + } else if (id.type !== Syntax.Identifier && !options.inFor) { + expect('='); + } + + return node.finishVariableDeclarator(id, init); + } + + function parseVariableDeclarationList(options) { + var opt, list; + + opt = { inFor: options.inFor }; + list = [parseVariableDeclaration(opt)]; + + while (match(',')) { + lex(); + list.push(parseVariableDeclaration(opt)); + } + + return list; + } + + function parseVariableStatement(node) { + var declarations; + + expectKeyword('var'); + + declarations = parseVariableDeclarationList({ inFor: false }); + + consumeSemicolon(); + + return node.finishVariableDeclaration(declarations); + } + + // ECMA-262 13.3.1 Let and Const Declarations + + function parseLexicalBinding(kind, options) { + var init = null, id, node = new Node(), params = []; + + id = parsePattern(params, kind); + + // ECMA-262 12.2.1 + if (strict && id.type === Syntax.Identifier && isRestrictedWord(id.name)) { + tolerateError(Messages.StrictVarName); + } + + if (kind === 'const') { + if (!matchKeyword('in') && !matchContextualKeyword('of')) { + expect('='); + init = isolateCoverGrammar(parseAssignmentExpression); + } + } else if ((!options.inFor && id.type !== Syntax.Identifier) || match('=')) { + expect('='); + init = isolateCoverGrammar(parseAssignmentExpression); + } + + return node.finishVariableDeclarator(id, init); + } + + function parseBindingList(kind, options) { + var list = [parseLexicalBinding(kind, options)]; + + while (match(',')) { + lex(); + list.push(parseLexicalBinding(kind, options)); + } + + return list; + } + + + function tokenizerState() { + return { + index: index, + lineNumber: lineNumber, + lineStart: lineStart, + hasLineTerminator: hasLineTerminator, + lastIndex: lastIndex, + lastLineNumber: lastLineNumber, + lastLineStart: lastLineStart, + startIndex: startIndex, + startLineNumber: startLineNumber, + startLineStart: startLineStart, + lookahead: lookahead, + tokenCount: extra.tokens ? extra.tokens.length : 0 + }; + } + + function resetTokenizerState(ts) { + index = ts.index; + lineNumber = ts.lineNumber; + lineStart = ts.lineStart; + hasLineTerminator = ts.hasLineTerminator; + lastIndex = ts.lastIndex; + lastLineNumber = ts.lastLineNumber; + lastLineStart = ts.lastLineStart; + startIndex = ts.startIndex; + startLineNumber = ts.startLineNumber; + startLineStart = ts.startLineStart; + lookahead = ts.lookahead; + if (extra.tokens) { + extra.tokens.splice(ts.tokenCount, extra.tokens.length); + } + } + + function isLexicalDeclaration() { + var lexical, ts; + + ts = tokenizerState(); + + lex(); + lexical = (lookahead.type === Token.Identifier) || match('[') || match('{') || + matchKeyword('let') || matchKeyword('yield'); + + resetTokenizerState(ts); + + return lexical; + } + + function parseLexicalDeclaration(options) { + var kind, declarations, node = new Node(); + + kind = lex().value; + assert(kind === 'let' || kind === 'const', 'Lexical declaration must be either let or const'); + + declarations = parseBindingList(kind, options); + + consumeSemicolon(); + + return node.finishLexicalDeclaration(declarations, kind); + } + + function parseRestElement(params) { + var param, node = new Node(); + + lex(); + + if (match('{')) { + throwError(Messages.ObjectPatternAsRestParameter); + } + + params.push(lookahead); + + param = parseVariableIdentifier(); + + if (match('=')) { + throwError(Messages.DefaultRestParameter); + } + + if (!match(')')) { + throwError(Messages.ParameterAfterRestParameter); + } + + return node.finishRestElement(param); + } + + // ECMA-262 13.4 Empty Statement + + function parseEmptyStatement(node) { + expect(';'); + return node.finishEmptyStatement(); + } + + // ECMA-262 12.4 Expression Statement + + function parseExpressionStatement(node) { + var expr = parseExpression(); + consumeSemicolon(); + return node.finishExpressionStatement(expr); + } + + // ECMA-262 13.6 If statement + + function parseIfStatement(node) { + var test, consequent, alternate; + + expectKeyword('if'); + + expect('('); + + test = parseExpression(); + + expect(')'); + + consequent = parseStatement(); + + if (matchKeyword('else')) { + lex(); + alternate = parseStatement(); + } else { + alternate = null; + } + + return node.finishIfStatement(test, consequent, alternate); + } + + // ECMA-262 13.7 Iteration Statements + + function parseDoWhileStatement(node) { + var body, test, oldInIteration; + + expectKeyword('do'); + + oldInIteration = state.inIteration; + state.inIteration = true; + + body = parseStatement(); + + state.inIteration = oldInIteration; + + expectKeyword('while'); + + expect('('); + + test = parseExpression(); + + expect(')'); + + if (match(';')) { + lex(); + } + + return node.finishDoWhileStatement(body, test); + } + + function parseWhileStatement(node) { + var test, body, oldInIteration; + + expectKeyword('while'); + + expect('('); + + test = parseExpression(); + + expect(')'); + + oldInIteration = state.inIteration; + state.inIteration = true; + + body = parseStatement(); + + state.inIteration = oldInIteration; + + return node.finishWhileStatement(test, body); + } + + function parseForStatement(node) { + var init, forIn, initSeq, initStartToken, test, update, left, right, kind, declarations, + body, oldInIteration, previousAllowIn = state.allowIn; + + init = test = update = null; + forIn = true; + + expectKeyword('for'); + + expect('('); + + if (match(';')) { + lex(); + } else { + if (matchKeyword('var')) { + init = new Node(); + lex(); + + state.allowIn = false; + declarations = parseVariableDeclarationList({ inFor: true }); + state.allowIn = previousAllowIn; + + if (declarations.length === 1 && matchKeyword('in')) { + init = init.finishVariableDeclaration(declarations); + lex(); + left = init; + right = parseExpression(); + init = null; + } else if (declarations.length === 1 && declarations[0].init === null && matchContextualKeyword('of')) { + init = init.finishVariableDeclaration(declarations); + lex(); + left = init; + right = parseAssignmentExpression(); + init = null; + forIn = false; + } else { + init = init.finishVariableDeclaration(declarations); + expect(';'); + } + } else if (matchKeyword('const') || matchKeyword('let')) { + init = new Node(); + kind = lex().value; + + if (!strict && lookahead.value === 'in') { + init = init.finishIdentifier(kind); + lex(); + left = init; + right = parseExpression(); + init = null; + } else { + state.allowIn = false; + declarations = parseBindingList(kind, {inFor: true}); + state.allowIn = previousAllowIn; + + if (declarations.length === 1 && declarations[0].init === null && matchKeyword('in')) { + init = init.finishLexicalDeclaration(declarations, kind); + lex(); + left = init; + right = parseExpression(); + init = null; + } else if (declarations.length === 1 && declarations[0].init === null && matchContextualKeyword('of')) { + init = init.finishLexicalDeclaration(declarations, kind); + lex(); + left = init; + right = parseAssignmentExpression(); + init = null; + forIn = false; + } else { + consumeSemicolon(); + init = init.finishLexicalDeclaration(declarations, kind); + } + } + } else { + initStartToken = lookahead; + state.allowIn = false; + init = inheritCoverGrammar(parseAssignmentExpression); + state.allowIn = previousAllowIn; + + if (matchKeyword('in')) { + if (!isAssignmentTarget) { + tolerateError(Messages.InvalidLHSInForIn); + } + + lex(); + reinterpretExpressionAsPattern(init); + left = init; + right = parseExpression(); + init = null; + } else if (matchContextualKeyword('of')) { + if (!isAssignmentTarget) { + tolerateError(Messages.InvalidLHSInForLoop); + } + + lex(); + reinterpretExpressionAsPattern(init); + left = init; + right = parseAssignmentExpression(); + init = null; + forIn = false; + } else { + if (match(',')) { + initSeq = [init]; + while (match(',')) { + lex(); + initSeq.push(isolateCoverGrammar(parseAssignmentExpression)); + } + init = new WrappingNode(initStartToken).finishSequenceExpression(initSeq); + } + expect(';'); + } + } + } + + if (typeof left === 'undefined') { + + if (!match(';')) { + test = parseExpression(); + } + expect(';'); + + if (!match(')')) { + update = parseExpression(); + } + } + + expect(')'); + + oldInIteration = state.inIteration; + state.inIteration = true; + + body = isolateCoverGrammar(parseStatement); + + state.inIteration = oldInIteration; + + return (typeof left === 'undefined') ? + node.finishForStatement(init, test, update, body) : + forIn ? node.finishForInStatement(left, right, body) : + node.finishForOfStatement(left, right, body); + } + + // ECMA-262 13.8 The continue statement + + function parseContinueStatement(node) { + var label = null, key; + + expectKeyword('continue'); + + // Optimize the most common form: 'continue;'. + if (source.charCodeAt(startIndex) === 0x3B) { + lex(); + + if (!state.inIteration) { + throwError(Messages.IllegalContinue); + } + + return node.finishContinueStatement(null); + } + + if (hasLineTerminator) { + if (!state.inIteration) { + throwError(Messages.IllegalContinue); + } + + return node.finishContinueStatement(null); + } + + if (lookahead.type === Token.Identifier) { + label = parseVariableIdentifier(); + + key = '$' + label.name; + if (!Object.prototype.hasOwnProperty.call(state.labelSet, key)) { + throwError(Messages.UnknownLabel, label.name); + } + } + + consumeSemicolon(); + + if (label === null && !state.inIteration) { + throwError(Messages.IllegalContinue); + } + + return node.finishContinueStatement(label); + } + + // ECMA-262 13.9 The break statement + + function parseBreakStatement(node) { + var label = null, key; + + expectKeyword('break'); + + // Catch the very common case first: immediately a semicolon (U+003B). + if (source.charCodeAt(lastIndex) === 0x3B) { + lex(); + + if (!(state.inIteration || state.inSwitch)) { + throwError(Messages.IllegalBreak); + } + + return node.finishBreakStatement(null); + } + + if (hasLineTerminator) { + if (!(state.inIteration || state.inSwitch)) { + throwError(Messages.IllegalBreak); + } + } else if (lookahead.type === Token.Identifier) { + label = parseVariableIdentifier(); + + key = '$' + label.name; + if (!Object.prototype.hasOwnProperty.call(state.labelSet, key)) { + throwError(Messages.UnknownLabel, label.name); + } + } + + consumeSemicolon(); + + if (label === null && !(state.inIteration || state.inSwitch)) { + throwError(Messages.IllegalBreak); + } + + return node.finishBreakStatement(label); + } + + // ECMA-262 13.10 The return statement + + function parseReturnStatement(node) { + var argument = null; + + expectKeyword('return'); + + if (!state.inFunctionBody) { + tolerateError(Messages.IllegalReturn); + } + + // 'return' followed by a space and an identifier is very common. + if (source.charCodeAt(lastIndex) === 0x20) { + if (isIdentifierStart(source.charCodeAt(lastIndex + 1))) { + argument = parseExpression(); + consumeSemicolon(); + return node.finishReturnStatement(argument); + } + } + + if (hasLineTerminator) { + // HACK + return node.finishReturnStatement(null); + } + + if (!match(';')) { + if (!match('}') && lookahead.type !== Token.EOF) { + argument = parseExpression(); + } + } + + consumeSemicolon(); + + return node.finishReturnStatement(argument); + } + + // ECMA-262 13.11 The with statement + + function parseWithStatement(node) { + var object, body; + + if (strict) { + tolerateError(Messages.StrictModeWith); + } + + expectKeyword('with'); + + expect('('); + + object = parseExpression(); + + expect(')'); + + body = parseStatement(); + + return node.finishWithStatement(object, body); + } + + // ECMA-262 13.12 The switch statement + + function parseSwitchCase() { + var test, consequent = [], statement, node = new Node(); + + if (matchKeyword('default')) { + lex(); + test = null; + } else { + expectKeyword('case'); + test = parseExpression(); + } + expect(':'); + + while (startIndex < length) { + if (match('}') || matchKeyword('default') || matchKeyword('case')) { + break; + } + statement = parseStatementListItem(); + consequent.push(statement); + } + + return node.finishSwitchCase(test, consequent); + } + + function parseSwitchStatement(node) { + var discriminant, cases, clause, oldInSwitch, defaultFound; + + expectKeyword('switch'); + + expect('('); + + discriminant = parseExpression(); + + expect(')'); + + expect('{'); + + cases = []; + + if (match('}')) { + lex(); + return node.finishSwitchStatement(discriminant, cases); + } + + oldInSwitch = state.inSwitch; + state.inSwitch = true; + defaultFound = false; + + while (startIndex < length) { + if (match('}')) { + break; + } + clause = parseSwitchCase(); + if (clause.test === null) { + if (defaultFound) { + throwError(Messages.MultipleDefaultsInSwitch); + } + defaultFound = true; + } + cases.push(clause); + } + + state.inSwitch = oldInSwitch; + + expect('}'); + + return node.finishSwitchStatement(discriminant, cases); + } + + // ECMA-262 13.14 The throw statement + + function parseThrowStatement(node) { + var argument; + + expectKeyword('throw'); + + if (hasLineTerminator) { + throwError(Messages.NewlineAfterThrow); + } + + argument = parseExpression(); + + consumeSemicolon(); + + return node.finishThrowStatement(argument); + } + + // ECMA-262 13.15 The try statement + + function parseCatchClause() { + var param, params = [], paramMap = {}, key, i, body, node = new Node(); + + expectKeyword('catch'); + + expect('('); + if (match(')')) { + throwUnexpectedToken(lookahead); + } + + param = parsePattern(params); + for (i = 0; i < params.length; i++) { + key = '$' + params[i].value; + if (Object.prototype.hasOwnProperty.call(paramMap, key)) { + tolerateError(Messages.DuplicateBinding, params[i].value); + } + paramMap[key] = true; + } + + // ECMA-262 12.14.1 + if (strict && isRestrictedWord(param.name)) { + tolerateError(Messages.StrictCatchVariable); + } + + expect(')'); + body = parseBlock(); + return node.finishCatchClause(param, body); + } + + function parseTryStatement(node) { + var block, handler = null, finalizer = null; + + expectKeyword('try'); + + block = parseBlock(); + + if (matchKeyword('catch')) { + handler = parseCatchClause(); + } + + if (matchKeyword('finally')) { + lex(); + finalizer = parseBlock(); + } + + if (!handler && !finalizer) { + throwError(Messages.NoCatchOrFinally); + } + + return node.finishTryStatement(block, handler, finalizer); + } + + // ECMA-262 13.16 The debugger statement + + function parseDebuggerStatement(node) { + expectKeyword('debugger'); + + consumeSemicolon(); + + return node.finishDebuggerStatement(); + } + + // 13 Statements + + function parseStatement() { + var type = lookahead.type, + expr, + labeledBody, + key, + node; + + if (type === Token.EOF) { + throwUnexpectedToken(lookahead); + } + + if (type === Token.Punctuator && lookahead.value === '{') { + return parseBlock(); + } + isAssignmentTarget = isBindingElement = true; + node = new Node(); + + if (type === Token.Punctuator) { + switch (lookahead.value) { + case ';': + return parseEmptyStatement(node); + case '(': + return parseExpressionStatement(node); + default: + break; + } + } else if (type === Token.Keyword) { + switch (lookahead.value) { + case 'break': + return parseBreakStatement(node); + case 'continue': + return parseContinueStatement(node); + case 'debugger': + return parseDebuggerStatement(node); + case 'do': + return parseDoWhileStatement(node); + case 'for': + return parseForStatement(node); + case 'function': + return parseFunctionDeclaration(node); + case 'if': + return parseIfStatement(node); + case 'return': + return parseReturnStatement(node); + case 'switch': + return parseSwitchStatement(node); + case 'throw': + return parseThrowStatement(node); + case 'try': + return parseTryStatement(node); + case 'var': + return parseVariableStatement(node); + case 'while': + return parseWhileStatement(node); + case 'with': + return parseWithStatement(node); + default: + break; + } + } + + expr = parseExpression(); + + // ECMA-262 12.12 Labelled Statements + if ((expr.type === Syntax.Identifier) && match(':')) { + lex(); + + key = '$' + expr.name; + if (Object.prototype.hasOwnProperty.call(state.labelSet, key)) { + throwError(Messages.Redeclaration, 'Label', expr.name); + } + + state.labelSet[key] = true; + labeledBody = parseStatement(); + delete state.labelSet[key]; + return node.finishLabeledStatement(expr, labeledBody); + } + + consumeSemicolon(); + + return node.finishExpressionStatement(expr); + } + + // ECMA-262 14.1 Function Definition + + function parseFunctionSourceElements() { + var statement, body = [], token, directive, firstRestricted, + oldLabelSet, oldInIteration, oldInSwitch, oldInFunctionBody, + node = new Node(); + + expect('{'); + + while (startIndex < length) { + if (lookahead.type !== Token.StringLiteral) { + break; + } + token = lookahead; + + statement = parseStatementListItem(); + body.push(statement); + if (statement.expression.type !== Syntax.Literal) { + // this is not directive + break; + } + directive = source.slice(token.start + 1, token.end - 1); + if (directive === 'use strict') { + strict = true; + if (firstRestricted) { + tolerateUnexpectedToken(firstRestricted, Messages.StrictOctalLiteral); + } + } else { + if (!firstRestricted && token.octal) { + firstRestricted = token; + } + } + } + + oldLabelSet = state.labelSet; + oldInIteration = state.inIteration; + oldInSwitch = state.inSwitch; + oldInFunctionBody = state.inFunctionBody; + + state.labelSet = {}; + state.inIteration = false; + state.inSwitch = false; + state.inFunctionBody = true; + + while (startIndex < length) { + if (match('}')) { + break; + } + body.push(parseStatementListItem()); + } + + expect('}'); + + state.labelSet = oldLabelSet; + state.inIteration = oldInIteration; + state.inSwitch = oldInSwitch; + state.inFunctionBody = oldInFunctionBody; + + return node.finishBlockStatement(body); + } + + function validateParam(options, param, name) { + var key = '$' + name; + if (strict) { + if (isRestrictedWord(name)) { + options.stricted = param; + options.message = Messages.StrictParamName; + } + if (Object.prototype.hasOwnProperty.call(options.paramSet, key)) { + options.stricted = param; + options.message = Messages.StrictParamDupe; + } + } else if (!options.firstRestricted) { + if (isRestrictedWord(name)) { + options.firstRestricted = param; + options.message = Messages.StrictParamName; + } else if (isStrictModeReservedWord(name)) { + options.firstRestricted = param; + options.message = Messages.StrictReservedWord; + } else if (Object.prototype.hasOwnProperty.call(options.paramSet, key)) { + options.stricted = param; + options.message = Messages.StrictParamDupe; + } + } + options.paramSet[key] = true; + } + + function parseParam(options) { + var token, param, params = [], i, def; + + token = lookahead; + if (token.value === '...') { + param = parseRestElement(params); + validateParam(options, param.argument, param.argument.name); + options.params.push(param); + options.defaults.push(null); + return false; + } + + param = parsePatternWithDefault(params); + for (i = 0; i < params.length; i++) { + validateParam(options, params[i], params[i].value); + } + + if (param.type === Syntax.AssignmentPattern) { + def = param.right; + param = param.left; + ++options.defaultCount; + } + + options.params.push(param); + options.defaults.push(def); + + return !match(')'); + } + + function parseParams(firstRestricted) { + var options; + + options = { + params: [], + defaultCount: 0, + defaults: [], + firstRestricted: firstRestricted + }; + + expect('('); + + if (!match(')')) { + options.paramSet = {}; + while (startIndex < length) { + if (!parseParam(options)) { + break; + } + expect(','); + } + } + + expect(')'); + + if (options.defaultCount === 0) { + options.defaults = []; + } + + return { + params: options.params, + defaults: options.defaults, + stricted: options.stricted, + firstRestricted: options.firstRestricted, + message: options.message + }; + } + + function parseFunctionDeclaration(node, identifierIsOptional) { + var id = null, params = [], defaults = [], body, token, stricted, tmp, firstRestricted, message, previousStrict, + isGenerator, previousAllowYield; + + previousAllowYield = state.allowYield; + + expectKeyword('function'); + + isGenerator = match('*'); + if (isGenerator) { + lex(); + } + + if (!identifierIsOptional || !match('(')) { + token = lookahead; + id = parseVariableIdentifier(); + if (strict) { + if (isRestrictedWord(token.value)) { + tolerateUnexpectedToken(token, Messages.StrictFunctionName); + } + } else { + if (isRestrictedWord(token.value)) { + firstRestricted = token; + message = Messages.StrictFunctionName; + } else if (isStrictModeReservedWord(token.value)) { + firstRestricted = token; + message = Messages.StrictReservedWord; + } + } + } + + state.allowYield = !isGenerator; + tmp = parseParams(firstRestricted); + params = tmp.params; + defaults = tmp.defaults; + stricted = tmp.stricted; + firstRestricted = tmp.firstRestricted; + if (tmp.message) { + message = tmp.message; + } + + + previousStrict = strict; + body = parseFunctionSourceElements(); + if (strict && firstRestricted) { + throwUnexpectedToken(firstRestricted, message); + } + if (strict && stricted) { + tolerateUnexpectedToken(stricted, message); + } + + strict = previousStrict; + state.allowYield = previousAllowYield; + + return node.finishFunctionDeclaration(id, params, defaults, body, isGenerator); + } + + function parseFunctionExpression() { + var token, id = null, stricted, firstRestricted, message, tmp, + params = [], defaults = [], body, previousStrict, node = new Node(), + isGenerator, previousAllowYield; + + previousAllowYield = state.allowYield; + + expectKeyword('function'); + + isGenerator = match('*'); + if (isGenerator) { + lex(); + } + + state.allowYield = !isGenerator; + if (!match('(')) { + token = lookahead; + id = (!strict && !isGenerator && matchKeyword('yield')) ? parseNonComputedProperty() : parseVariableIdentifier(); + if (strict) { + if (isRestrictedWord(token.value)) { + tolerateUnexpectedToken(token, Messages.StrictFunctionName); + } + } else { + if (isRestrictedWord(token.value)) { + firstRestricted = token; + message = Messages.StrictFunctionName; + } else if (isStrictModeReservedWord(token.value)) { + firstRestricted = token; + message = Messages.StrictReservedWord; + } + } + } + + tmp = parseParams(firstRestricted); + params = tmp.params; + defaults = tmp.defaults; + stricted = tmp.stricted; + firstRestricted = tmp.firstRestricted; + if (tmp.message) { + message = tmp.message; + } + + previousStrict = strict; + body = parseFunctionSourceElements(); + if (strict && firstRestricted) { + throwUnexpectedToken(firstRestricted, message); + } + if (strict && stricted) { + tolerateUnexpectedToken(stricted, message); + } + strict = previousStrict; + state.allowYield = previousAllowYield; + + return node.finishFunctionExpression(id, params, defaults, body, isGenerator); + } + + // ECMA-262 14.5 Class Definitions + + function parseClassBody() { + var classBody, token, isStatic, hasConstructor = false, body, method, computed, key; + + classBody = new Node(); + + expect('{'); + body = []; + while (!match('}')) { + if (match(';')) { + lex(); + } else { + method = new Node(); + token = lookahead; + isStatic = false; + computed = match('['); + if (match('*')) { + lex(); + } else { + key = parseObjectPropertyKey(); + if (key.name === 'static' && (lookaheadPropertyName() || match('*'))) { + token = lookahead; + isStatic = true; + computed = match('['); + if (match('*')) { + lex(); + } else { + key = parseObjectPropertyKey(); + } + } + } + method = tryParseMethodDefinition(token, key, computed, method); + if (method) { + method['static'] = isStatic; // jscs:ignore requireDotNotation + if (method.kind === 'init') { + method.kind = 'method'; + } + if (!isStatic) { + if (!method.computed && (method.key.name || method.key.value.toString()) === 'constructor') { + if (method.kind !== 'method' || !method.method || method.value.generator) { + throwUnexpectedToken(token, Messages.ConstructorSpecialMethod); + } + if (hasConstructor) { + throwUnexpectedToken(token, Messages.DuplicateConstructor); + } else { + hasConstructor = true; + } + method.kind = 'constructor'; + } + } else { + if (!method.computed && (method.key.name || method.key.value.toString()) === 'prototype') { + throwUnexpectedToken(token, Messages.StaticPrototype); + } + } + method.type = Syntax.MethodDefinition; + delete method.method; + delete method.shorthand; + body.push(method); + } else { + throwUnexpectedToken(lookahead); + } + } + } + lex(); + return classBody.finishClassBody(body); + } + + function parseClassDeclaration(identifierIsOptional) { + var id = null, superClass = null, classNode = new Node(), classBody, previousStrict = strict; + strict = true; + + expectKeyword('class'); + + if (!identifierIsOptional || lookahead.type === Token.Identifier) { + id = parseVariableIdentifier(); + } + + if (matchKeyword('extends')) { + lex(); + superClass = isolateCoverGrammar(parseLeftHandSideExpressionAllowCall); + } + classBody = parseClassBody(); + strict = previousStrict; + + return classNode.finishClassDeclaration(id, superClass, classBody); + } + + function parseClassExpression() { + var id = null, superClass = null, classNode = new Node(), classBody, previousStrict = strict; + strict = true; + + expectKeyword('class'); + + if (lookahead.type === Token.Identifier) { + id = parseVariableIdentifier(); + } + + if (matchKeyword('extends')) { + lex(); + superClass = isolateCoverGrammar(parseLeftHandSideExpressionAllowCall); + } + classBody = parseClassBody(); + strict = previousStrict; + + return classNode.finishClassExpression(id, superClass, classBody); + } + + // ECMA-262 15.2 Modules + + function parseModuleSpecifier() { + var node = new Node(); + + if (lookahead.type !== Token.StringLiteral) { + throwError(Messages.InvalidModuleSpecifier); + } + return node.finishLiteral(lex()); + } + + // ECMA-262 15.2.3 Exports + + function parseExportSpecifier() { + var exported, local, node = new Node(), def; + if (matchKeyword('default')) { + // export {default} from 'something'; + def = new Node(); + lex(); + local = def.finishIdentifier('default'); + } else { + local = parseVariableIdentifier(); + } + if (matchContextualKeyword('as')) { + lex(); + exported = parseNonComputedProperty(); + } + return node.finishExportSpecifier(local, exported); + } + + function parseExportNamedDeclaration(node) { + var declaration = null, + isExportFromIdentifier, + src = null, specifiers = []; + + // non-default export + if (lookahead.type === Token.Keyword) { + // covers: + // export var f = 1; + switch (lookahead.value) { + case 'let': + case 'const': + declaration = parseLexicalDeclaration({inFor: false}); + return node.finishExportNamedDeclaration(declaration, specifiers, null); + case 'var': + case 'class': + case 'function': + declaration = parseStatementListItem(); + return node.finishExportNamedDeclaration(declaration, specifiers, null); + } + } + + expect('{'); + while (!match('}')) { + isExportFromIdentifier = isExportFromIdentifier || matchKeyword('default'); + specifiers.push(parseExportSpecifier()); + if (!match('}')) { + expect(','); + if (match('}')) { + break; + } + } + } + expect('}'); + + if (matchContextualKeyword('from')) { + // covering: + // export {default} from 'foo'; + // export {foo} from 'foo'; + lex(); + src = parseModuleSpecifier(); + consumeSemicolon(); + } else if (isExportFromIdentifier) { + // covering: + // export {default}; // missing fromClause + throwError(lookahead.value ? + Messages.UnexpectedToken : Messages.MissingFromClause, lookahead.value); + } else { + // cover + // export {foo}; + consumeSemicolon(); + } + return node.finishExportNamedDeclaration(declaration, specifiers, src); + } + + function parseExportDefaultDeclaration(node) { + var declaration = null, + expression = null; + + // covers: + // export default ... + expectKeyword('default'); + + if (matchKeyword('function')) { + // covers: + // export default function foo () {} + // export default function () {} + declaration = parseFunctionDeclaration(new Node(), true); + return node.finishExportDefaultDeclaration(declaration); + } + if (matchKeyword('class')) { + declaration = parseClassDeclaration(true); + return node.finishExportDefaultDeclaration(declaration); + } + + if (matchContextualKeyword('from')) { + throwError(Messages.UnexpectedToken, lookahead.value); + } + + // covers: + // export default {}; + // export default []; + // export default (1 + 2); + if (match('{')) { + expression = parseObjectInitializer(); + } else if (match('[')) { + expression = parseArrayInitializer(); + } else { + expression = parseAssignmentExpression(); + } + consumeSemicolon(); + return node.finishExportDefaultDeclaration(expression); + } + + function parseExportAllDeclaration(node) { + var src; + + // covers: + // export * from 'foo'; + expect('*'); + if (!matchContextualKeyword('from')) { + throwError(lookahead.value ? + Messages.UnexpectedToken : Messages.MissingFromClause, lookahead.value); + } + lex(); + src = parseModuleSpecifier(); + consumeSemicolon(); + + return node.finishExportAllDeclaration(src); + } + + function parseExportDeclaration() { + var node = new Node(); + if (state.inFunctionBody) { + throwError(Messages.IllegalExportDeclaration); + } + + expectKeyword('export'); + + if (matchKeyword('default')) { + return parseExportDefaultDeclaration(node); + } + if (match('*')) { + return parseExportAllDeclaration(node); + } + return parseExportNamedDeclaration(node); + } + + // ECMA-262 15.2.2 Imports + + function parseImportSpecifier() { + // import {} ...; + var local, imported, node = new Node(); + + imported = parseNonComputedProperty(); + if (matchContextualKeyword('as')) { + lex(); + local = parseVariableIdentifier(); + } + + return node.finishImportSpecifier(local, imported); + } + + function parseNamedImports() { + var specifiers = []; + // {foo, bar as bas} + expect('{'); + while (!match('}')) { + specifiers.push(parseImportSpecifier()); + if (!match('}')) { + expect(','); + if (match('}')) { + break; + } + } + } + expect('}'); + return specifiers; + } + + function parseImportDefaultSpecifier() { + // import ...; + var local, node = new Node(); + + local = parseNonComputedProperty(); + + return node.finishImportDefaultSpecifier(local); + } + + function parseImportNamespaceSpecifier() { + // import <* as foo> ...; + var local, node = new Node(); + + expect('*'); + if (!matchContextualKeyword('as')) { + throwError(Messages.NoAsAfterImportNamespace); + } + lex(); + local = parseNonComputedProperty(); + + return node.finishImportNamespaceSpecifier(local); + } + + function parseImportDeclaration() { + var specifiers = [], src, node = new Node(); + + if (state.inFunctionBody) { + throwError(Messages.IllegalImportDeclaration); + } + + expectKeyword('import'); + + if (lookahead.type === Token.StringLiteral) { + // import 'foo'; + src = parseModuleSpecifier(); + } else { + + if (match('{')) { + // import {bar} + specifiers = specifiers.concat(parseNamedImports()); + } else if (match('*')) { + // import * as foo + specifiers.push(parseImportNamespaceSpecifier()); + } else if (isIdentifierName(lookahead) && !matchKeyword('default')) { + // import foo + specifiers.push(parseImportDefaultSpecifier()); + if (match(',')) { + lex(); + if (match('*')) { + // import foo, * as foo + specifiers.push(parseImportNamespaceSpecifier()); + } else if (match('{')) { + // import foo, {bar} + specifiers = specifiers.concat(parseNamedImports()); + } else { + throwUnexpectedToken(lookahead); + } + } + } else { + throwUnexpectedToken(lex()); + } + + if (!matchContextualKeyword('from')) { + throwError(lookahead.value ? + Messages.UnexpectedToken : Messages.MissingFromClause, lookahead.value); + } + lex(); + src = parseModuleSpecifier(); + } + + consumeSemicolon(); + return node.finishImportDeclaration(specifiers, src); + } + + // ECMA-262 15.1 Scripts + + function parseScriptBody() { + var statement, body = [], token, directive, firstRestricted; + + while (startIndex < length) { + token = lookahead; + if (token.type !== Token.StringLiteral) { + break; + } + + statement = parseStatementListItem(); + body.push(statement); + if (statement.expression.type !== Syntax.Literal) { + // this is not directive + break; + } + directive = source.slice(token.start + 1, token.end - 1); + if (directive === 'use strict') { + strict = true; + if (firstRestricted) { + tolerateUnexpectedToken(firstRestricted, Messages.StrictOctalLiteral); + } + } else { + if (!firstRestricted && token.octal) { + firstRestricted = token; + } + } + } + + while (startIndex < length) { + statement = parseStatementListItem(); + /* istanbul ignore if */ + if (typeof statement === 'undefined') { + break; + } + body.push(statement); + } + return body; + } + + function parseProgram() { + var body, node; + + peek(); + node = new Node(); + + body = parseScriptBody(); + return node.finishProgram(body, state.sourceType); + } + + function filterTokenLocation() { + var i, entry, token, tokens = []; + + for (i = 0; i < extra.tokens.length; ++i) { + entry = extra.tokens[i]; + token = { + type: entry.type, + value: entry.value + }; + if (entry.regex) { + token.regex = { + pattern: entry.regex.pattern, + flags: entry.regex.flags + }; + } + if (extra.range) { + token.range = entry.range; + } + if (extra.loc) { + token.loc = entry.loc; + } + tokens.push(token); + } + + extra.tokens = tokens; + } + + function tokenize(code, options, delegate) { + var toString, + tokens; + + toString = String; + if (typeof code !== 'string' && !(code instanceof String)) { + code = toString(code); + } + + source = code; + index = 0; + lineNumber = (source.length > 0) ? 1 : 0; + lineStart = 0; + startIndex = index; + startLineNumber = lineNumber; + startLineStart = lineStart; + length = source.length; + lookahead = null; + state = { + allowIn: true, + allowYield: true, + labelSet: {}, + inFunctionBody: false, + inIteration: false, + inSwitch: false, + lastCommentStart: -1, + curlyStack: [] + }; + + extra = {}; + + // Options matching. + options = options || {}; + + // Of course we collect tokens here. + options.tokens = true; + extra.tokens = []; + extra.tokenValues = []; + extra.tokenize = true; + extra.delegate = delegate; + + // The following two fields are necessary to compute the Regex tokens. + extra.openParenToken = -1; + extra.openCurlyToken = -1; + + extra.range = (typeof options.range === 'boolean') && options.range; + extra.loc = (typeof options.loc === 'boolean') && options.loc; + + if (typeof options.comment === 'boolean' && options.comment) { + extra.comments = []; + } + if (typeof options.tolerant === 'boolean' && options.tolerant) { + extra.errors = []; + } + + try { + peek(); + if (lookahead.type === Token.EOF) { + return extra.tokens; + } + + lex(); + while (lookahead.type !== Token.EOF) { + try { + lex(); + } catch (lexError) { + if (extra.errors) { + recordError(lexError); + // We have to break on the first error + // to avoid infinite loops. + break; + } else { + throw lexError; + } + } + } + + tokens = extra.tokens; + if (typeof extra.errors !== 'undefined') { + tokens.errors = extra.errors; + } + } catch (e) { + throw e; + } finally { + extra = {}; + } + return tokens; + } + + function parse(code, options) { + var program, toString; + + toString = String; + if (typeof code !== 'string' && !(code instanceof String)) { + code = toString(code); + } + + source = code; + index = 0; + lineNumber = (source.length > 0) ? 1 : 0; + lineStart = 0; + startIndex = index; + startLineNumber = lineNumber; + startLineStart = lineStart; + length = source.length; + lookahead = null; + state = { + allowIn: true, + allowYield: true, + labelSet: {}, + inFunctionBody: false, + inIteration: false, + inSwitch: false, + lastCommentStart: -1, + curlyStack: [], + sourceType: 'script' + }; + strict = false; + + extra = {}; + if (typeof options !== 'undefined') { + extra.range = (typeof options.range === 'boolean') && options.range; + extra.loc = (typeof options.loc === 'boolean') && options.loc; + extra.attachComment = (typeof options.attachComment === 'boolean') && options.attachComment; + + if (extra.loc && options.source !== null && options.source !== undefined) { + extra.source = toString(options.source); + } + + if (typeof options.tokens === 'boolean' && options.tokens) { + extra.tokens = []; + } + if (typeof options.comment === 'boolean' && options.comment) { + extra.comments = []; + } + if (typeof options.tolerant === 'boolean' && options.tolerant) { + extra.errors = []; + } + if (extra.attachComment) { + extra.range = true; + extra.comments = []; + extra.bottomRightStack = []; + extra.trailingComments = []; + extra.leadingComments = []; + } + if (options.sourceType === 'module') { + // very restrictive condition for now + state.sourceType = options.sourceType; + strict = true; + } + } + + try { + program = parseProgram(); + if (typeof extra.comments !== 'undefined') { + program.comments = extra.comments; + } + if (typeof extra.tokens !== 'undefined') { + filterTokenLocation(); + program.tokens = extra.tokens; + } + if (typeof extra.errors !== 'undefined') { + program.errors = extra.errors; + } + } catch (e) { + throw e; + } finally { + extra = {}; + } + + return program; + } + + // Sync with *.json manifests. + exports.version = '2.7.2'; + + exports.tokenize = tokenize; + + exports.parse = parse; + + // Deep copy. + /* istanbul ignore next */ + exports.Syntax = (function () { + var name, types = {}; + + if (typeof Object.create === 'function') { + types = Object.create(null); + } + + for (name in Syntax) { + if (Syntax.hasOwnProperty(name)) { + types[name] = Syntax[name]; + } + } + + if (typeof Object.freeze === 'function') { + Object.freeze(types); + } + + return types; + }()); + +})); +/* vim: set sw=4 ts=4 et tw=80 : */ + +},{}],45:[function(require,module,exports){ +/* + Copyright (C) 2012-2013 Yusuke Suzuki + Copyright (C) 2012 Ariya Hidayat + + Redistribution and use in source and binary forms, with or without + modification, are permitted provided that the following conditions are met: + + * Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. + * Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in the + documentation and/or other materials provided with the distribution. + + THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + ARE DISCLAIMED. IN NO EVENT SHALL BE LIABLE FOR ANY + DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +*/ +/*jslint vars:false, bitwise:true*/ +/*jshint indent:4*/ +/*global exports:true, define:true*/ +(function (root, factory) { + 'use strict'; + + // Universal Module Definition (UMD) to support AMD, CommonJS/Node.js, + // and plain browser loading, + if (typeof define === 'function' && define.amd) { + define(['exports'], factory); + } else if (typeof exports !== 'undefined') { + factory(exports); + } else { + factory((root.estraverse = {})); + } +}(this, function clone(exports) { + 'use strict'; + + var Syntax, + isArray, + VisitorOption, + VisitorKeys, + objectCreate, + objectKeys, + BREAK, + SKIP, + REMOVE; + + function ignoreJSHintError() { } + + isArray = Array.isArray; + if (!isArray) { + isArray = function isArray(array) { + return Object.prototype.toString.call(array) === '[object Array]'; + }; + } + + function deepCopy(obj) { + var ret = {}, key, val; + for (key in obj) { + if (obj.hasOwnProperty(key)) { + val = obj[key]; + if (typeof val === 'object' && val !== null) { + ret[key] = deepCopy(val); + } else { + ret[key] = val; + } + } + } + return ret; + } + + function shallowCopy(obj) { + var ret = {}, key; + for (key in obj) { + if (obj.hasOwnProperty(key)) { + ret[key] = obj[key]; + } + } + return ret; + } + ignoreJSHintError(shallowCopy); + + // based on LLVM libc++ upper_bound / lower_bound + // MIT License + + function upperBound(array, func) { + var diff, len, i, current; + + len = array.length; + i = 0; + + while (len) { + diff = len >>> 1; + current = i + diff; + if (func(array[current])) { + len = diff; + } else { + i = current + 1; + len -= diff + 1; + } + } + return i; + } + + function lowerBound(array, func) { + var diff, len, i, current; + + len = array.length; + i = 0; + + while (len) { + diff = len >>> 1; + current = i + diff; + if (func(array[current])) { + i = current + 1; + len -= diff + 1; + } else { + len = diff; + } + } + return i; + } + ignoreJSHintError(lowerBound); + + objectCreate = Object.create || (function () { + function F() { } + + return function (o) { + F.prototype = o; + return new F(); + }; + })(); + + objectKeys = Object.keys || function (o) { + var keys = [], key; + for (key in o) { + keys.push(key); + } + return keys; + }; + + function extend(to, from) { + var keys = objectKeys(from), key, i, len; + for (i = 0, len = keys.length; i < len; i += 1) { + key = keys[i]; + to[key] = from[key]; + } + return to; + } + + Syntax = { + AssignmentExpression: 'AssignmentExpression', + ArrayExpression: 'ArrayExpression', + ArrayPattern: 'ArrayPattern', + ArrowFunctionExpression: 'ArrowFunctionExpression', + AwaitExpression: 'AwaitExpression', // CAUTION: It's deferred to ES7. + BlockStatement: 'BlockStatement', + BinaryExpression: 'BinaryExpression', + BreakStatement: 'BreakStatement', + CallExpression: 'CallExpression', + CatchClause: 'CatchClause', + ClassBody: 'ClassBody', + ClassDeclaration: 'ClassDeclaration', + ClassExpression: 'ClassExpression', + ComprehensionBlock: 'ComprehensionBlock', // CAUTION: It's deferred to ES7. + ComprehensionExpression: 'ComprehensionExpression', // CAUTION: It's deferred to ES7. + ConditionalExpression: 'ConditionalExpression', + ContinueStatement: 'ContinueStatement', + DebuggerStatement: 'DebuggerStatement', + DirectiveStatement: 'DirectiveStatement', + DoWhileStatement: 'DoWhileStatement', + EmptyStatement: 'EmptyStatement', + ExportBatchSpecifier: 'ExportBatchSpecifier', + ExportDeclaration: 'ExportDeclaration', + ExportSpecifier: 'ExportSpecifier', + ExpressionStatement: 'ExpressionStatement', + ForStatement: 'ForStatement', + ForInStatement: 'ForInStatement', + ForOfStatement: 'ForOfStatement', + FunctionDeclaration: 'FunctionDeclaration', + FunctionExpression: 'FunctionExpression', + GeneratorExpression: 'GeneratorExpression', // CAUTION: It's deferred to ES7. + Identifier: 'Identifier', + IfStatement: 'IfStatement', + ImportDeclaration: 'ImportDeclaration', + ImportDefaultSpecifier: 'ImportDefaultSpecifier', + ImportNamespaceSpecifier: 'ImportNamespaceSpecifier', + ImportSpecifier: 'ImportSpecifier', + Literal: 'Literal', + LabeledStatement: 'LabeledStatement', + LogicalExpression: 'LogicalExpression', + MemberExpression: 'MemberExpression', + MethodDefinition: 'MethodDefinition', + ModuleSpecifier: 'ModuleSpecifier', + NewExpression: 'NewExpression', + ObjectExpression: 'ObjectExpression', + ObjectPattern: 'ObjectPattern', + Program: 'Program', + Property: 'Property', + ReturnStatement: 'ReturnStatement', + SequenceExpression: 'SequenceExpression', + SpreadElement: 'SpreadElement', + SwitchStatement: 'SwitchStatement', + SwitchCase: 'SwitchCase', + TaggedTemplateExpression: 'TaggedTemplateExpression', + TemplateElement: 'TemplateElement', + TemplateLiteral: 'TemplateLiteral', + ThisExpression: 'ThisExpression', + ThrowStatement: 'ThrowStatement', + TryStatement: 'TryStatement', + UnaryExpression: 'UnaryExpression', + UpdateExpression: 'UpdateExpression', + VariableDeclaration: 'VariableDeclaration', + VariableDeclarator: 'VariableDeclarator', + WhileStatement: 'WhileStatement', + WithStatement: 'WithStatement', + YieldExpression: 'YieldExpression' + }; + + VisitorKeys = { + AssignmentExpression: ['left', 'right'], + ArrayExpression: ['elements'], + ArrayPattern: ['elements'], + ArrowFunctionExpression: ['params', 'defaults', 'rest', 'body'], + AwaitExpression: ['argument'], // CAUTION: It's deferred to ES7. + BlockStatement: ['body'], + BinaryExpression: ['left', 'right'], + BreakStatement: ['label'], + CallExpression: ['callee', 'arguments'], + CatchClause: ['param', 'body'], + ClassBody: ['body'], + ClassDeclaration: ['id', 'body', 'superClass'], + ClassExpression: ['id', 'body', 'superClass'], + ComprehensionBlock: ['left', 'right'], // CAUTION: It's deferred to ES7. + ComprehensionExpression: ['blocks', 'filter', 'body'], // CAUTION: It's deferred to ES7. + ConditionalExpression: ['test', 'consequent', 'alternate'], + ContinueStatement: ['label'], + DebuggerStatement: [], + DirectiveStatement: [], + DoWhileStatement: ['body', 'test'], + EmptyStatement: [], + ExportBatchSpecifier: [], + ExportDeclaration: ['declaration', 'specifiers', 'source'], + ExportSpecifier: ['id', 'name'], + ExpressionStatement: ['expression'], + ForStatement: ['init', 'test', 'update', 'body'], + ForInStatement: ['left', 'right', 'body'], + ForOfStatement: ['left', 'right', 'body'], + FunctionDeclaration: ['id', 'params', 'defaults', 'rest', 'body'], + FunctionExpression: ['id', 'params', 'defaults', 'rest', 'body'], + GeneratorExpression: ['blocks', 'filter', 'body'], // CAUTION: It's deferred to ES7. + Identifier: [], + IfStatement: ['test', 'consequent', 'alternate'], + ImportDeclaration: ['specifiers', 'source'], + ImportDefaultSpecifier: ['id'], + ImportNamespaceSpecifier: ['id'], + ImportSpecifier: ['id', 'name'], + Literal: [], + LabeledStatement: ['label', 'body'], + LogicalExpression: ['left', 'right'], + MemberExpression: ['object', 'property'], + MethodDefinition: ['key', 'value'], + ModuleSpecifier: [], + NewExpression: ['callee', 'arguments'], + ObjectExpression: ['properties'], + ObjectPattern: ['properties'], + Program: ['body'], + Property: ['key', 'value'], + ReturnStatement: ['argument'], + SequenceExpression: ['expressions'], + SpreadElement: ['argument'], + SwitchStatement: ['discriminant', 'cases'], + SwitchCase: ['test', 'consequent'], + TaggedTemplateExpression: ['tag', 'quasi'], + TemplateElement: [], + TemplateLiteral: ['quasis', 'expressions'], + ThisExpression: [], + ThrowStatement: ['argument'], + TryStatement: ['block', 'handlers', 'handler', 'guardedHandlers', 'finalizer'], + UnaryExpression: ['argument'], + UpdateExpression: ['argument'], + VariableDeclaration: ['declarations'], + VariableDeclarator: ['id', 'init'], + WhileStatement: ['test', 'body'], + WithStatement: ['object', 'body'], + YieldExpression: ['argument'] + }; + + // unique id + BREAK = {}; + SKIP = {}; + REMOVE = {}; + + VisitorOption = { + Break: BREAK, + Skip: SKIP, + Remove: REMOVE + }; + + function Reference(parent, key) { + this.parent = parent; + this.key = key; + } + + Reference.prototype.replace = function replace(node) { + this.parent[this.key] = node; + }; + + Reference.prototype.remove = function remove() { + if (isArray(this.parent)) { + this.parent.splice(this.key, 1); + return true; + } else { + this.replace(null); + return false; + } + }; + + function Element(node, path, wrap, ref) { + this.node = node; + this.path = path; + this.wrap = wrap; + this.ref = ref; + } + + function Controller() { } + + // API: + // return property path array from root to current node + Controller.prototype.path = function path() { + var i, iz, j, jz, result, element; + + function addToPath(result, path) { + if (isArray(path)) { + for (j = 0, jz = path.length; j < jz; ++j) { + result.push(path[j]); + } + } else { + result.push(path); + } + } + + // root node + if (!this.__current.path) { + return null; + } + + // first node is sentinel, second node is root element + result = []; + for (i = 2, iz = this.__leavelist.length; i < iz; ++i) { + element = this.__leavelist[i]; + addToPath(result, element.path); + } + addToPath(result, this.__current.path); + return result; + }; + + // API: + // return type of current node + Controller.prototype.type = function () { + var node = this.current(); + return node.type || this.__current.wrap; + }; + + // API: + // return array of parent elements + Controller.prototype.parents = function parents() { + var i, iz, result; + + // first node is sentinel + result = []; + for (i = 1, iz = this.__leavelist.length; i < iz; ++i) { + result.push(this.__leavelist[i].node); + } + + return result; + }; + + // API: + // return current node + Controller.prototype.current = function current() { + return this.__current.node; + }; + + Controller.prototype.__execute = function __execute(callback, element) { + var previous, result; + + result = undefined; + + previous = this.__current; + this.__current = element; + this.__state = null; + if (callback) { + result = callback.call(this, element.node, this.__leavelist[this.__leavelist.length - 1].node); + } + this.__current = previous; + + return result; + }; + + // API: + // notify control skip / break + Controller.prototype.notify = function notify(flag) { + this.__state = flag; + }; + + // API: + // skip child nodes of current node + Controller.prototype.skip = function () { + this.notify(SKIP); + }; + + // API: + // break traversals + Controller.prototype['break'] = function () { + this.notify(BREAK); + }; + + // API: + // remove node + Controller.prototype.remove = function () { + this.notify(REMOVE); + }; + + Controller.prototype.__initialize = function(root, visitor) { + this.visitor = visitor; + this.root = root; + this.__worklist = []; + this.__leavelist = []; + this.__current = null; + this.__state = null; + this.__fallback = visitor.fallback === 'iteration'; + this.__keys = VisitorKeys; + if (visitor.keys) { + this.__keys = extend(objectCreate(this.__keys), visitor.keys); + } + }; + + function isNode(node) { + if (node == null) { + return false; + } + return typeof node === 'object' && typeof node.type === 'string'; + } + + function isProperty(nodeType, key) { + return (nodeType === Syntax.ObjectExpression || nodeType === Syntax.ObjectPattern) && 'properties' === key; + } + + Controller.prototype.traverse = function traverse(root, visitor) { + var worklist, + leavelist, + element, + node, + nodeType, + ret, + key, + current, + current2, + candidates, + candidate, + sentinel; + + this.__initialize(root, visitor); + + sentinel = {}; + + // reference + worklist = this.__worklist; + leavelist = this.__leavelist; + + // initialize + worklist.push(new Element(root, null, null, null)); + leavelist.push(new Element(null, null, null, null)); + + while (worklist.length) { + element = worklist.pop(); + + if (element === sentinel) { + element = leavelist.pop(); + + ret = this.__execute(visitor.leave, element); + + if (this.__state === BREAK || ret === BREAK) { + return; + } + continue; + } + + if (element.node) { + + ret = this.__execute(visitor.enter, element); + + if (this.__state === BREAK || ret === BREAK) { + return; + } + + worklist.push(sentinel); + leavelist.push(element); + + if (this.__state === SKIP || ret === SKIP) { + continue; + } + + node = element.node; + nodeType = element.wrap || node.type; + candidates = this.__keys[nodeType]; + if (!candidates) { + if (this.__fallback) { + candidates = objectKeys(node); + } else { + throw new Error('Unknown node type ' + nodeType + '.'); + } + } + + current = candidates.length; + while ((current -= 1) >= 0) { + key = candidates[current]; + candidate = node[key]; + if (!candidate) { + continue; + } + + if (isArray(candidate)) { + current2 = candidate.length; + while ((current2 -= 1) >= 0) { + if (!candidate[current2]) { + continue; + } + if (isProperty(nodeType, candidates[current])) { + element = new Element(candidate[current2], [key, current2], 'Property', null); + } else if (isNode(candidate[current2])) { + element = new Element(candidate[current2], [key, current2], null, null); + } else { + continue; + } + worklist.push(element); + } + } else if (isNode(candidate)) { + worklist.push(new Element(candidate, key, null, null)); + } + } + } + } + }; + + Controller.prototype.replace = function replace(root, visitor) { + function removeElem(element) { + var i, + key, + nextElem, + parent; + + if (element.ref.remove()) { + // When the reference is an element of an array. + key = element.ref.key; + parent = element.ref.parent; + + // If removed from array, then decrease following items' keys. + i = worklist.length; + while (i--) { + nextElem = worklist[i]; + if (nextElem.ref && nextElem.ref.parent === parent) { + if (nextElem.ref.key < key) { + break; + } + --nextElem.ref.key; + } + } + } + } + + var worklist, + leavelist, + node, + nodeType, + target, + element, + current, + current2, + candidates, + candidate, + sentinel, + outer, + key; + + this.__initialize(root, visitor); + + sentinel = {}; + + // reference + worklist = this.__worklist; + leavelist = this.__leavelist; + + // initialize + outer = { + root: root + }; + element = new Element(root, null, null, new Reference(outer, 'root')); + worklist.push(element); + leavelist.push(element); + + while (worklist.length) { + element = worklist.pop(); + + if (element === sentinel) { + element = leavelist.pop(); + + target = this.__execute(visitor.leave, element); + + // node may be replaced with null, + // so distinguish between undefined and null in this place + if (target !== undefined && target !== BREAK && target !== SKIP && target !== REMOVE) { + // replace + element.ref.replace(target); + } + + if (this.__state === REMOVE || target === REMOVE) { + removeElem(element); + } + + if (this.__state === BREAK || target === BREAK) { + return outer.root; + } + continue; + } + + target = this.__execute(visitor.enter, element); + + // node may be replaced with null, + // so distinguish between undefined and null in this place + if (target !== undefined && target !== BREAK && target !== SKIP && target !== REMOVE) { + // replace + element.ref.replace(target); + element.node = target; + } + + if (this.__state === REMOVE || target === REMOVE) { + removeElem(element); + element.node = null; + } + + if (this.__state === BREAK || target === BREAK) { + return outer.root; + } + + // node may be null + node = element.node; + if (!node) { + continue; + } + + worklist.push(sentinel); + leavelist.push(element); + + if (this.__state === SKIP || target === SKIP) { + continue; + } + + nodeType = element.wrap || node.type; + candidates = this.__keys[nodeType]; + if (!candidates) { + if (this.__fallback) { + candidates = objectKeys(node); + } else { + throw new Error('Unknown node type ' + nodeType + '.'); + } + } + + current = candidates.length; + while ((current -= 1) >= 0) { + key = candidates[current]; + candidate = node[key]; + if (!candidate) { + continue; + } + + if (isArray(candidate)) { + current2 = candidate.length; + while ((current2 -= 1) >= 0) { + if (!candidate[current2]) { + continue; + } + if (isProperty(nodeType, candidates[current])) { + element = new Element(candidate[current2], [key, current2], 'Property', new Reference(candidate, current2)); + } else if (isNode(candidate[current2])) { + element = new Element(candidate[current2], [key, current2], null, new Reference(candidate, current2)); + } else { + continue; + } + worklist.push(element); + } + } else if (isNode(candidate)) { + worklist.push(new Element(candidate, key, null, new Reference(node, key))); + } + } + } + + return outer.root; + }; + + function traverse(root, visitor) { + var controller = new Controller(); + return controller.traverse(root, visitor); + } + + function replace(root, visitor) { + var controller = new Controller(); + return controller.replace(root, visitor); + } + + function extendCommentRange(comment, tokens) { + var target; + + target = upperBound(tokens, function search(token) { + return token.range[0] > comment.range[0]; + }); + + comment.extendedRange = [comment.range[0], comment.range[1]]; + + if (target !== tokens.length) { + comment.extendedRange[1] = tokens[target].range[0]; + } + + target -= 1; + if (target >= 0) { + comment.extendedRange[0] = tokens[target].range[1]; + } + + return comment; + } + + function attachComments(tree, providedComments, tokens) { + // At first, we should calculate extended comment ranges. + var comments = [], comment, len, i, cursor; + + if (!tree.range) { + throw new Error('attachComments needs range information'); + } + + // tokens array is empty, we attach comments to tree as 'leadingComments' + if (!tokens.length) { + if (providedComments.length) { + for (i = 0, len = providedComments.length; i < len; i += 1) { + comment = deepCopy(providedComments[i]); + comment.extendedRange = [0, tree.range[0]]; + comments.push(comment); + } + tree.leadingComments = comments; + } + return tree; + } + + for (i = 0, len = providedComments.length; i < len; i += 1) { + comments.push(extendCommentRange(deepCopy(providedComments[i]), tokens)); + } + + // This is based on John Freeman's implementation. + cursor = 0; + traverse(tree, { + enter: function (node) { + var comment; + + while (cursor < comments.length) { + comment = comments[cursor]; + if (comment.extendedRange[1] > node.range[0]) { + break; + } + + if (comment.extendedRange[1] === node.range[0]) { + if (!node.leadingComments) { + node.leadingComments = []; + } + node.leadingComments.push(comment); + comments.splice(cursor, 1); + } else { + cursor += 1; + } + } + + // already out of owned node + if (cursor === comments.length) { + return VisitorOption.Break; + } + + if (comments[cursor].extendedRange[0] > node.range[1]) { + return VisitorOption.Skip; + } + } + }); + + cursor = 0; + traverse(tree, { + leave: function (node) { + var comment; + + while (cursor < comments.length) { + comment = comments[cursor]; + if (node.range[1] < comment.extendedRange[0]) { + break; + } + + if (node.range[1] === comment.extendedRange[0]) { + if (!node.trailingComments) { + node.trailingComments = []; + } + node.trailingComments.push(comment); + comments.splice(cursor, 1); + } else { + cursor += 1; + } + } + + // already out of owned node + if (cursor === comments.length) { + return VisitorOption.Break; + } + + if (comments[cursor].extendedRange[0] > node.range[1]) { + return VisitorOption.Skip; + } + } + }); + + return tree; + } + + exports.version = '1.8.1-dev'; + exports.Syntax = Syntax; + exports.traverse = traverse; + exports.replace = replace; + exports.attachComments = attachComments; + exports.VisitorKeys = VisitorKeys; + exports.VisitorOption = VisitorOption; + exports.Controller = Controller; + exports.cloneEnvironment = function () { return clone({}); }; + + return exports; +})); +/* vim: set sw=4 ts=4 et tw=80 : */ + +},{}],46:[function(require,module,exports){ +/* + Copyright (C) 2013 Yusuke Suzuki + + Redistribution and use in source and binary forms, with or without + modification, are permitted provided that the following conditions are met: + + * Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. + * Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in the + documentation and/or other materials provided with the distribution. + + THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 'AS IS' + AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + ARE DISCLAIMED. IN NO EVENT SHALL BE LIABLE FOR ANY + DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +*/ + +(function () { + 'use strict'; + + function isExpression(node) { + if (node == null) { return false; } + switch (node.type) { + case 'ArrayExpression': + case 'AssignmentExpression': + case 'BinaryExpression': + case 'CallExpression': + case 'ConditionalExpression': + case 'FunctionExpression': + case 'Identifier': + case 'Literal': + case 'LogicalExpression': + case 'MemberExpression': + case 'NewExpression': + case 'ObjectExpression': + case 'SequenceExpression': + case 'ThisExpression': + case 'UnaryExpression': + case 'UpdateExpression': + return true; + } + return false; + } + + function isIterationStatement(node) { + if (node == null) { return false; } + switch (node.type) { + case 'DoWhileStatement': + case 'ForInStatement': + case 'ForStatement': + case 'WhileStatement': + return true; + } + return false; + } + + function isStatement(node) { + if (node == null) { return false; } + switch (node.type) { + case 'BlockStatement': + case 'BreakStatement': + case 'ContinueStatement': + case 'DebuggerStatement': + case 'DoWhileStatement': + case 'EmptyStatement': + case 'ExpressionStatement': + case 'ForInStatement': + case 'ForStatement': + case 'IfStatement': + case 'LabeledStatement': + case 'ReturnStatement': + case 'SwitchStatement': + case 'ThrowStatement': + case 'TryStatement': + case 'VariableDeclaration': + case 'WhileStatement': + case 'WithStatement': + return true; + } + return false; + } + + function isSourceElement(node) { + return isStatement(node) || node != null && node.type === 'FunctionDeclaration'; + } + + function trailingStatement(node) { + switch (node.type) { + case 'IfStatement': + if (node.alternate != null) { + return node.alternate; + } + return node.consequent; + + case 'LabeledStatement': + case 'ForStatement': + case 'ForInStatement': + case 'WhileStatement': + case 'WithStatement': + return node.body; + } + return null; + } + + function isProblematicIfStatement(node) { + var current; + + if (node.type !== 'IfStatement') { + return false; + } + if (node.alternate == null) { + return false; + } + current = node.consequent; + do { + if (current.type === 'IfStatement') { + if (current.alternate == null) { + return true; + } + } + current = trailingStatement(current); + } while (current); + + return false; + } + + module.exports = { + isExpression: isExpression, + isStatement: isStatement, + isIterationStatement: isIterationStatement, + isSourceElement: isSourceElement, + isProblematicIfStatement: isProblematicIfStatement, + + trailingStatement: trailingStatement + }; +}()); +/* vim: set sw=4 ts=4 et tw=80 : */ + +},{}],47:[function(require,module,exports){ +/* + Copyright (C) 2013-2014 Yusuke Suzuki + Copyright (C) 2014 Ivan Nikulin + + Redistribution and use in source and binary forms, with or without + modification, are permitted provided that the following conditions are met: + + * Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. + * Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in the + documentation and/or other materials provided with the distribution. + + THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + ARE DISCLAIMED. IN NO EVENT SHALL BE LIABLE FOR ANY + DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +*/ + +(function () { + 'use strict'; + + var ES6Regex, ES5Regex, NON_ASCII_WHITESPACES, IDENTIFIER_START, IDENTIFIER_PART, ch; + + // See `tools/generate-identifier-regex.js`. + ES5Regex = { + // ECMAScript 5.1/Unicode v7.0.0 NonAsciiIdentifierStart: + NonAsciiIdentifierStart: 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+ // ECMAScript 5.1/Unicode v7.0.0 NonAsciiIdentifierPart: + NonAsciiIdentifierPart: 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+ }; + + ES6Regex = { + // ECMAScript 6/Unicode v7.0.0 NonAsciiIdentifierStart: + NonAsciiIdentifierStart: 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E2B\uDEB0-\uDEDE\uDF05-\uDF0C\uDF0F\uDF10\uDF13-\uDF28\uDF2A-\uDF30\uDF32\uDF33\uDF35-\uDF39\uDF3D\uDF5D-\uDF61]|\uD805[\uDC80-\uDCAF\uDCC4\uDCC5\uDCC7\uDD80-\uDDAE\uDE00-\uDE2F\uDE44\uDE80-\uDEAA]|\uD806[\uDCA0-\uDCDF\uDCFF\uDEC0-\uDEF8]|\uD808[\uDC00-\uDF98]|\uD809[\uDC00-\uDC6E]|[\uD80C\uD840-\uD868\uD86A-\uD86C][\uDC00-\uDFFF]|\uD80D[\uDC00-\uDC2E]|\uD81A[\uDC00-\uDE38\uDE40-\uDE5E\uDED0-\uDEED\uDF00-\uDF2F\uDF40-\uDF43\uDF63-\uDF77\uDF7D-\uDF8F]|\uD81B[\uDF00-\uDF44\uDF50\uDF93-\uDF9F]|\uD82C[\uDC00\uDC01]|\uD82F[\uDC00-\uDC6A\uDC70-\uDC7C\uDC80-\uDC88\uDC90-\uDC99]|\uD835[\uDC00-\uDC54\uDC56-\uDC9C\uDC9E\uDC9F\uDCA2\uDCA5\uDCA6\uDCA9-\uDCAC\uDCAE-\uDCB9\uDCBB\uDCBD-\uDCC3\uDCC5-\uDD05\uDD07-\uDD0A\uDD0D-\uDD14\uDD16-\uDD1C\uDD1E-\uDD39\uDD3B-\uDD3E\uDD40-\uDD44\uDD46\uDD4A-\uDD50\uDD52-\uDEA5\uDEA8-\uDEC0\uDEC2-\uDEDA\uDEDC-\uDEFA\uDEFC-\uDF14\uDF16-\uDF34\uDF36-\uDF4E\uDF50-\uDF6E\uDF70-\uDF88\uDF8A-\uDFA8\uDFAA-\uDFC2\uDFC4-\uDFCB]|\uD83A[\uDC00-\uDCC4]|\uD83B[\uDE00-\uDE03\uDE05-\uDE1F\uDE21\uDE22\uDE24\uDE27\uDE29-\uDE32\uDE34-\uDE37\uDE39\uDE3B\uDE42\uDE47\uDE49\uDE4B\uDE4D-\uDE4F\uDE51\uDE52\uDE54\uDE57\uDE59\uDE5B\uDE5D\uDE5F\uDE61\uDE62\uDE64\uDE67-\uDE6A\uDE6C-\uDE72\uDE74-\uDE77\uDE79-\uDE7C\uDE7E\uDE80-\uDE89\uDE8B-\uDE9B\uDEA1-\uDEA3\uDEA5-\uDEA9\uDEAB-\uDEBB]|\uD869[\uDC00-\uDED6\uDF00-\uDFFF]|\uD86D[\uDC00-\uDF34\uDF40-\uDFFF]|\uD86E[\uDC00-\uDC1D]|\uD87E[\uDC00-\uDE1D]/, + // ECMAScript 6/Unicode v7.0.0 NonAsciiIdentifierPart: + NonAsciiIdentifierPart: /[\xAA\xB5\xB7\xBA\xC0-\xD6\xD8-\xF6\xF8-\u02C1\u02C6-\u02D1\u02E0-\u02E4\u02EC\u02EE\u0300-\u0374\u0376\u0377\u037A-\u037D\u037F\u0386-\u038A\u038C\u038E-\u03A1\u03A3-\u03F5\u03F7-\u0481\u0483-\u0487\u048A-\u052F\u0531-\u0556\u0559\u0561-\u0587\u0591-\u05BD\u05BF\u05C1\u05C2\u05C4\u05C5\u05C7\u05D0-\u05EA\u05F0-\u05F2\u0610-\u061A\u0620-\u0669\u066E-\u06D3\u06D5-\u06DC\u06DF-\u06E8\u06EA-\u06FC\u06FF\u0710-\u074A\u074D-\u07B1\u07C0-\u07F5\u07FA\u0800-\u082D\u0840-\u085B\u08A0-\u08B2\u08E4-\u0963\u0966-\u096F\u0971-\u0983\u0985-\u098C\u098F\u0990\u0993-\u09A8\u09AA-\u09B0\u09B2\u09B6-\u09B9\u09BC-\u09C4\u09C7\u09C8\u09CB-\u09CE\u09D7\u09DC\u09DD\u09DF-\u09E3\u09E6-\u09F1\u0A01-\u0A03\u0A05-\u0A0A\u0A0F\u0A10\u0A13-\u0A28\u0A2A-\u0A30\u0A32\u0A33\u0A35\u0A36\u0A38\u0A39\u0A3C\u0A3E-\u0A42\u0A47\u0A48\u0A4B-\u0A4D\u0A51\u0A59-\u0A5C\u0A5E\u0A66-\u0A75\u0A81-\u0A83\u0A85-\u0A8D\u0A8F-\u0A91\u0A93-\u0AA8\u0AAA-\u0AB0\u0AB2\u0AB3\u0AB5-\u0AB9\u0ABC-\u0AC5\u0AC7-\u0AC9\u0ACB-\u0ACD\u0AD0\u0AE0-\u0AE3\u0AE6-\u0AEF\u0B01-\u0B03\u0B05-\u0B0C\u0B0F\u0B10\u0B13-\u0B28\u0B2A-\u0B30\u0B32\u0B33\u0B35-\u0B39\u0B3C-\u0B44\u0B47\u0B48\u0B4B-\u0B4D\u0B56\u0B57\u0B5C\u0B5D\u0B5F-\u0B63\u0B66-\u0B6F\u0B71\u0B82\u0B83\u0B85-\u0B8A\u0B8E-\u0B90\u0B92-\u0B95\u0B99\u0B9A\u0B9C\u0B9E\u0B9F\u0BA3\u0BA4\u0BA8-\u0BAA\u0BAE-\u0BB9\u0BBE-\u0BC2\u0BC6-\u0BC8\u0BCA-\u0BCD\u0BD0\u0BD7\u0BE6-\u0BEF\u0C00-\u0C03\u0C05-\u0C0C\u0C0E-\u0C10\u0C12-\u0C28\u0C2A-\u0C39\u0C3D-\u0C44\u0C46-\u0C48\u0C4A-\u0C4D\u0C55\u0C56\u0C58\u0C59\u0C60-\u0C63\u0C66-\u0C6F\u0C81-\u0C83\u0C85-\u0C8C\u0C8E-\u0C90\u0C92-\u0CA8\u0CAA-\u0CB3\u0CB5-\u0CB9\u0CBC-\u0CC4\u0CC6-\u0CC8\u0CCA-\u0CCD\u0CD5\u0CD6\u0CDE\u0CE0-\u0CE3\u0CE6-\u0CEF\u0CF1\u0CF2\u0D01-\u0D03\u0D05-\u0D0C\u0D0E-\u0D10\u0D12-\u0D3A\u0D3D-\u0D44\u0D46-\u0D48\u0D4A-\u0D4E\u0D57\u0D60-\u0D63\u0D66-\u0D6F\u0D7A-\u0D7F\u0D82\u0D83\u0D85-\u0D96\u0D9A-\u0DB1\u0DB3-\u0DBB\u0DBD\u0DC0-\u0DC6\u0DCA\u0DCF-\u0DD4\u0DD6\u0DD8-\u0DDF\u0DE6-\u0DEF\u0DF2\u0DF3\u0E01-\u0E3A\u0E40-\u0E4E\u0E50-\u0E59\u0E81\u0E82\u0E84\u0E87\u0E88\u0E8A\u0E8D\u0E94-\u0E97\u0E99-\u0E9F\u0EA1-\u0EA3\u0EA5\u0EA7\u0EAA\u0EAB\u0EAD-\u0EB9\u0EBB-\u0EBD\u0EC0-\u0EC4\u0EC6\u0EC8-\u0ECD\u0ED0-\u0ED9\u0EDC-\u0EDF\u0F00\u0F18\u0F19\u0F20-\u0F29\u0F35\u0F37\u0F39\u0F3E-\u0F47\u0F49-\u0F6C\u0F71-\u0F84\u0F86-\u0F97\u0F99-\u0FBC\u0FC6\u1000-\u1049\u1050-\u109D\u10A0-\u10C5\u10C7\u10CD\u10D0-\u10FA\u10FC-\u1248\u124A-\u124D\u1250-\u1256\u1258\u125A-\u125D\u1260-\u1288\u128A-\u128D\u1290-\u12B0\u12B2-\u12B5\u12B8-\u12BE\u12C0\u12C2-\u12C5\u12C8-\u12D6\u12D8-\u1310\u1312-\u1315\u1318-\u135A\u135D-\u135F\u1369-\u1371\u1380-\u138F\u13A0-\u13F4\u1401-\u166C\u166F-\u167F\u1681-\u169A\u16A0-\u16EA\u16EE-\u16F8\u1700-\u170C\u170E-\u1714\u1720-\u1734\u1740-\u1753\u1760-\u176C\u176E-\u1770\u1772\u1773\u1780-\u17D3\u17D7\u17DC\u17DD\u17E0-\u17E9\u180B-\u180D\u1810-\u1819\u1820-\u1877\u1880-\u18AA\u18B0-\u18F5\u1900-\u191E\u1920-\u192B\u1930-\u193B\u1946-\u196D\u1970-\u1974\u1980-\u19AB\u19B0-\u19C9\u19D0-\u19DA\u1A00-\u1A1B\u1A20-\u1A5E\u1A60-\u1A7C\u1A7F-\u1A89\u1A90-\u1A99\u1AA7\u1AB0-\u1ABD\u1B00-\u1B4B\u1B50-\u1B59\u1B6B-\u1B73\u1B80-\u1BF3\u1C00-\u1C37\u1C40-\u1C49\u1C4D-\u1C7D\u1CD0-\u1CD2\u1CD4-\u1CF6\u1CF8\u1CF9\u1D00-\u1DF5\u1DFC-\u1F15\u1F18-\u1F1D\u1F20-\u1F45\u1F48-\u1F4D\u1F50-\u1F57\u1F59\u1F5B\u1F5D\u1F5F-\u1F7D\u1F80-\u1FB4\u1FB6-\u1FBC\u1FBE\u1FC2-\u1FC4\u1FC6-\u1FCC\u1FD0-\u1FD3\u1FD6-\u1FDB\u1FE0-\u1FEC\u1FF2-\u1FF4\u1FF6-\u1FFC\u200C\u200D\u203F\u2040\u2054\u2071\u207F\u2090-\u209C\u20D0-\u20DC\u20E1\u20E5-\u20F0\u2102\u2107\u210A-\u2113\u2115\u2118-\u211D\u2124\u2126\u2128\u212A-\u2139\u213C-\u213F\u2145-\u2149\u214E\u2160-\u2188\u2C00-\u2C2E\u2C30-\u2C5E\u2C60-\u2CE4\u2CEB-\u2CF3\u2D00-\u2D25\u2D27\u2D2D\u2D30-\u2D67\u2D6F\u2D7F-\u2D96\u2DA0-\u2DA6\u2DA8-\u2DAE\u2DB0-\u2DB6\u2DB8-\u2DBE\u2DC0-\u2DC6\u2DC8-\u2DCE\u2DD0-\u2DD6\u2DD8-\u2DDE\u2DE0-\u2DFF\u3005-\u3007\u3021-\u302F\u3031-\u3035\u3038-\u303C\u3041-\u3096\u3099-\u309F\u30A1-\u30FA\u30FC-\u30FF\u3105-\u312D\u3131-\u318E\u31A0-\u31BA\u31F0-\u31FF\u3400-\u4DB5\u4E00-\u9FCC\uA000-\uA48C\uA4D0-\uA4FD\uA500-\uA60C\uA610-\uA62B\uA640-\uA66F\uA674-\uA67D\uA67F-\uA69D\uA69F-\uA6F1\uA717-\uA71F\uA722-\uA788\uA78B-\uA78E\uA790-\uA7AD\uA7B0\uA7B1\uA7F7-\uA827\uA840-\uA873\uA880-\uA8C4\uA8D0-\uA8D9\uA8E0-\uA8F7\uA8FB\uA900-\uA92D\uA930-\uA953\uA960-\uA97C\uA980-\uA9C0\uA9CF-\uA9D9\uA9E0-\uA9FE\uAA00-\uAA36\uAA40-\uAA4D\uAA50-\uAA59\uAA60-\uAA76\uAA7A-\uAAC2\uAADB-\uAADD\uAAE0-\uAAEF\uAAF2-\uAAF6\uAB01-\uAB06\uAB09-\uAB0E\uAB11-\uAB16\uAB20-\uAB26\uAB28-\uAB2E\uAB30-\uAB5A\uAB5C-\uAB5F\uAB64\uAB65\uABC0-\uABEA\uABEC\uABED\uABF0-\uABF9\uAC00-\uD7A3\uD7B0-\uD7C6\uD7CB-\uD7FB\uF900-\uFA6D\uFA70-\uFAD9\uFB00-\uFB06\uFB13-\uFB17\uFB1D-\uFB28\uFB2A-\uFB36\uFB38-\uFB3C\uFB3E\uFB40\uFB41\uFB43\uFB44\uFB46-\uFBB1\uFBD3-\uFD3D\uFD50-\uFD8F\uFD92-\uFDC7\uFDF0-\uFDFB\uFE00-\uFE0F\uFE20-\uFE2D\uFE33\uFE34\uFE4D-\uFE4F\uFE70-\uFE74\uFE76-\uFEFC\uFF10-\uFF19\uFF21-\uFF3A\uFF3F\uFF41-\uFF5A\uFF66-\uFFBE\uFFC2-\uFFC7\uFFCA-\uFFCF\uFFD2-\uFFD7\uFFDA-\uFFDC]|\uD800[\uDC00-\uDC0B\uDC0D-\uDC26\uDC28-\uDC3A\uDC3C\uDC3D\uDC3F-\uDC4D\uDC50-\uDC5D\uDC80-\uDCFA\uDD40-\uDD74\uDDFD\uDE80-\uDE9C\uDEA0-\uDED0\uDEE0\uDF00-\uDF1F\uDF30-\uDF4A\uDF50-\uDF7A\uDF80-\uDF9D\uDFA0-\uDFC3\uDFC8-\uDFCF\uDFD1-\uDFD5]|\uD801[\uDC00-\uDC9D\uDCA0-\uDCA9\uDD00-\uDD27\uDD30-\uDD63\uDE00-\uDF36\uDF40-\uDF55\uDF60-\uDF67]|\uD802[\uDC00-\uDC05\uDC08\uDC0A-\uDC35\uDC37\uDC38\uDC3C\uDC3F-\uDC55\uDC60-\uDC76\uDC80-\uDC9E\uDD00-\uDD15\uDD20-\uDD39\uDD80-\uDDB7\uDDBE\uDDBF\uDE00-\uDE03\uDE05\uDE06\uDE0C-\uDE13\uDE15-\uDE17\uDE19-\uDE33\uDE38-\uDE3A\uDE3F\uDE60-\uDE7C\uDE80-\uDE9C\uDEC0-\uDEC7\uDEC9-\uDEE6\uDF00-\uDF35\uDF40-\uDF55\uDF60-\uDF72\uDF80-\uDF91]|\uD803[\uDC00-\uDC48]|\uD804[\uDC00-\uDC46\uDC66-\uDC6F\uDC7F-\uDCBA\uDCD0-\uDCE8\uDCF0-\uDCF9\uDD00-\uDD34\uDD36-\uDD3F\uDD50-\uDD73\uDD76\uDD80-\uDDC4\uDDD0-\uDDDA\uDE00-\uDE11\uDE13-\uDE37\uDEB0-\uDEEA\uDEF0-\uDEF9\uDF01-\uDF03\uDF05-\uDF0C\uDF0F\uDF10\uDF13-\uDF28\uDF2A-\uDF30\uDF32\uDF33\uDF35-\uDF39\uDF3C-\uDF44\uDF47\uDF48\uDF4B-\uDF4D\uDF57\uDF5D-\uDF63\uDF66-\uDF6C\uDF70-\uDF74]|\uD805[\uDC80-\uDCC5\uDCC7\uDCD0-\uDCD9\uDD80-\uDDB5\uDDB8-\uDDC0\uDE00-\uDE40\uDE44\uDE50-\uDE59\uDE80-\uDEB7\uDEC0-\uDEC9]|\uD806[\uDCA0-\uDCE9\uDCFF\uDEC0-\uDEF8]|\uD808[\uDC00-\uDF98]|\uD809[\uDC00-\uDC6E]|[\uD80C\uD840-\uD868\uD86A-\uD86C][\uDC00-\uDFFF]|\uD80D[\uDC00-\uDC2E]|\uD81A[\uDC00-\uDE38\uDE40-\uDE5E\uDE60-\uDE69\uDED0-\uDEED\uDEF0-\uDEF4\uDF00-\uDF36\uDF40-\uDF43\uDF50-\uDF59\uDF63-\uDF77\uDF7D-\uDF8F]|\uD81B[\uDF00-\uDF44\uDF50-\uDF7E\uDF8F-\uDF9F]|\uD82C[\uDC00\uDC01]|\uD82F[\uDC00-\uDC6A\uDC70-\uDC7C\uDC80-\uDC88\uDC90-\uDC99\uDC9D\uDC9E]|\uD834[\uDD65-\uDD69\uDD6D-\uDD72\uDD7B-\uDD82\uDD85-\uDD8B\uDDAA-\uDDAD\uDE42-\uDE44]|\uD835[\uDC00-\uDC54\uDC56-\uDC9C\uDC9E\uDC9F\uDCA2\uDCA5\uDCA6\uDCA9-\uDCAC\uDCAE-\uDCB9\uDCBB\uDCBD-\uDCC3\uDCC5-\uDD05\uDD07-\uDD0A\uDD0D-\uDD14\uDD16-\uDD1C\uDD1E-\uDD39\uDD3B-\uDD3E\uDD40-\uDD44\uDD46\uDD4A-\uDD50\uDD52-\uDEA5\uDEA8-\uDEC0\uDEC2-\uDEDA\uDEDC-\uDEFA\uDEFC-\uDF14\uDF16-\uDF34\uDF36-\uDF4E\uDF50-\uDF6E\uDF70-\uDF88\uDF8A-\uDFA8\uDFAA-\uDFC2\uDFC4-\uDFCB\uDFCE-\uDFFF]|\uD83A[\uDC00-\uDCC4\uDCD0-\uDCD6]|\uD83B[\uDE00-\uDE03\uDE05-\uDE1F\uDE21\uDE22\uDE24\uDE27\uDE29-\uDE32\uDE34-\uDE37\uDE39\uDE3B\uDE42\uDE47\uDE49\uDE4B\uDE4D-\uDE4F\uDE51\uDE52\uDE54\uDE57\uDE59\uDE5B\uDE5D\uDE5F\uDE61\uDE62\uDE64\uDE67-\uDE6A\uDE6C-\uDE72\uDE74-\uDE77\uDE79-\uDE7C\uDE7E\uDE80-\uDE89\uDE8B-\uDE9B\uDEA1-\uDEA3\uDEA5-\uDEA9\uDEAB-\uDEBB]|\uD869[\uDC00-\uDED6\uDF00-\uDFFF]|\uD86D[\uDC00-\uDF34\uDF40-\uDFFF]|\uD86E[\uDC00-\uDC1D]|\uD87E[\uDC00-\uDE1D]|\uDB40[\uDD00-\uDDEF]/ + }; + + function isDecimalDigit(ch) { + return 0x30 <= ch && ch <= 0x39; // 0..9 + } + + function isHexDigit(ch) { + return 0x30 <= ch && ch <= 0x39 || // 0..9 + 0x61 <= ch && ch <= 0x66 || // a..f + 0x41 <= ch && ch <= 0x46; // A..F + } + + function isOctalDigit(ch) { + return ch >= 0x30 && ch <= 0x37; // 0..7 + } + + // 7.2 White Space + + NON_ASCII_WHITESPACES = [ + 0x1680, 0x180E, + 0x2000, 0x2001, 0x2002, 0x2003, 0x2004, 0x2005, 0x2006, 0x2007, 0x2008, 0x2009, 0x200A, + 0x202F, 0x205F, + 0x3000, + 0xFEFF + ]; + + function isWhiteSpace(ch) { + return ch === 0x20 || ch === 0x09 || ch === 0x0B || ch === 0x0C || ch === 0xA0 || + ch >= 0x1680 && NON_ASCII_WHITESPACES.indexOf(ch) >= 0; + } + + // 7.3 Line Terminators + + function isLineTerminator(ch) { + return ch === 0x0A || ch === 0x0D || ch === 0x2028 || ch === 0x2029; + } + + // 7.6 Identifier Names and Identifiers + + function fromCodePoint(cp) { + if (cp <= 0xFFFF) { return String.fromCharCode(cp); } + var cu1 = String.fromCharCode(Math.floor((cp - 0x10000) / 0x400) + 0xD800); + var cu2 = String.fromCharCode(((cp - 0x10000) % 0x400) + 0xDC00); + return cu1 + cu2; + } + + IDENTIFIER_START = new Array(0x80); + for(ch = 0; ch < 0x80; ++ch) { + IDENTIFIER_START[ch] = + ch >= 0x61 && ch <= 0x7A || // a..z + ch >= 0x41 && ch <= 0x5A || // A..Z + ch === 0x24 || ch === 0x5F; // $ (dollar) and _ (underscore) + } + + IDENTIFIER_PART = new Array(0x80); + for(ch = 0; ch < 0x80; ++ch) { + IDENTIFIER_PART[ch] = + ch >= 0x61 && ch <= 0x7A || // a..z + ch >= 0x41 && ch <= 0x5A || // A..Z + ch >= 0x30 && ch <= 0x39 || // 0..9 + ch === 0x24 || ch === 0x5F; // $ (dollar) and _ (underscore) + } + + function isIdentifierStartES5(ch) { + return ch < 0x80 ? IDENTIFIER_START[ch] : ES5Regex.NonAsciiIdentifierStart.test(fromCodePoint(ch)); + } + + function isIdentifierPartES5(ch) { + return ch < 0x80 ? IDENTIFIER_PART[ch] : ES5Regex.NonAsciiIdentifierPart.test(fromCodePoint(ch)); + } + + function isIdentifierStartES6(ch) { + return ch < 0x80 ? IDENTIFIER_START[ch] : ES6Regex.NonAsciiIdentifierStart.test(fromCodePoint(ch)); + } + + function isIdentifierPartES6(ch) { + return ch < 0x80 ? IDENTIFIER_PART[ch] : ES6Regex.NonAsciiIdentifierPart.test(fromCodePoint(ch)); + } + + module.exports = { + isDecimalDigit: isDecimalDigit, + isHexDigit: isHexDigit, + isOctalDigit: isOctalDigit, + isWhiteSpace: isWhiteSpace, + isLineTerminator: isLineTerminator, + isIdentifierStartES5: isIdentifierStartES5, + isIdentifierPartES5: isIdentifierPartES5, + isIdentifierStartES6: isIdentifierStartES6, + isIdentifierPartES6: isIdentifierPartES6 + }; +}()); +/* vim: set sw=4 ts=4 et tw=80 : */ + +},{}],48:[function(require,module,exports){ +/* + Copyright (C) 2013 Yusuke Suzuki + + Redistribution and use in source and binary forms, with or without + modification, are permitted provided that the following conditions are met: + + * Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. + * Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in the + documentation and/or other materials provided with the distribution. + + THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + ARE DISCLAIMED. IN NO EVENT SHALL BE LIABLE FOR ANY + DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +*/ + +(function () { + 'use strict'; + + var code = require('./code'); + + function isStrictModeReservedWordES6(id) { + switch (id) { + case 'implements': + case 'interface': + case 'package': + case 'private': + case 'protected': + case 'public': + case 'static': + case 'let': + return true; + default: + return false; + } + } + + function isKeywordES5(id, strict) { + // yield should not be treated as keyword under non-strict mode. + if (!strict && id === 'yield') { + return false; + } + return isKeywordES6(id, strict); + } + + function isKeywordES6(id, strict) { + if (strict && isStrictModeReservedWordES6(id)) { + return true; + } + + switch (id.length) { + case 2: + return (id === 'if') || (id === 'in') || (id === 'do'); + case 3: + return (id === 'var') || (id === 'for') || (id === 'new') || (id === 'try'); + case 4: + return (id === 'this') || (id === 'else') || (id === 'case') || + (id === 'void') || (id === 'with') || (id === 'enum'); + case 5: + return (id === 'while') || (id === 'break') || (id === 'catch') || + (id === 'throw') || (id === 'const') || (id === 'yield') || + (id === 'class') || (id === 'super'); + case 6: + return (id === 'return') || (id === 'typeof') || (id === 'delete') || + (id === 'switch') || (id === 'export') || (id === 'import'); + case 7: + return (id === 'default') || (id === 'finally') || (id === 'extends'); + case 8: + return (id === 'function') || (id === 'continue') || (id === 'debugger'); + case 10: + return (id === 'instanceof'); + default: + return false; + } + } + + function isReservedWordES5(id, strict) { + return id === 'null' || id === 'true' || id === 'false' || isKeywordES5(id, strict); + } + + function isReservedWordES6(id, strict) { + return id === 'null' || id === 'true' || id === 'false' || isKeywordES6(id, strict); + } + + function isRestrictedWord(id) { + return id === 'eval' || id === 'arguments'; + } + + function isIdentifierNameES5(id) { + var i, iz, ch; + + if (id.length === 0) { return false; } + + ch = id.charCodeAt(0); + if (!code.isIdentifierStartES5(ch)) { + return false; + } + + for (i = 1, iz = id.length; i < iz; ++i) { + ch = id.charCodeAt(i); + if (!code.isIdentifierPartES5(ch)) { + return false; + } + } + return true; + } + + function decodeUtf16(lead, trail) { + return (lead - 0xD800) * 0x400 + (trail - 0xDC00) + 0x10000; + } + + function isIdentifierNameES6(id) { + var i, iz, ch, lowCh, check; + + if (id.length === 0) { return false; } + + check = code.isIdentifierStartES6; + for (i = 0, iz = id.length; i < iz; ++i) { + ch = id.charCodeAt(i); + if (0xD800 <= ch && ch <= 0xDBFF) { + ++i; + if (i >= iz) { return false; } + lowCh = id.charCodeAt(i); + if (!(0xDC00 <= lowCh && lowCh <= 0xDFFF)) { + return false; + } + ch = decodeUtf16(ch, lowCh); + } + if (!check(ch)) { + return false; + } + check = code.isIdentifierPartES6; + } + return true; + } + + function isIdentifierES5(id, strict) { + return isIdentifierNameES5(id) && !isReservedWordES5(id, strict); + } + + function isIdentifierES6(id, strict) { + return isIdentifierNameES6(id) && !isReservedWordES6(id, strict); + } + + module.exports = { + isKeywordES5: isKeywordES5, + isKeywordES6: isKeywordES6, + isReservedWordES5: isReservedWordES5, + isReservedWordES6: isReservedWordES6, + isRestrictedWord: isRestrictedWord, + isIdentifierNameES5: isIdentifierNameES5, + isIdentifierNameES6: isIdentifierNameES6, + isIdentifierES5: isIdentifierES5, + isIdentifierES6: isIdentifierES6 + }; +}()); +/* vim: set sw=4 ts=4 et tw=80 : */ + +},{"./code":47}],49:[function(require,module,exports){ +/* + Copyright (C) 2013 Yusuke Suzuki + + Redistribution and use in source and binary forms, with or without + modification, are permitted provided that the following conditions are met: + + * Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. + * Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in the + documentation and/or other materials provided with the distribution. + + THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + ARE DISCLAIMED. IN NO EVENT SHALL BE LIABLE FOR ANY + DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +*/ + + +(function () { + 'use strict'; + + exports.ast = require('./ast'); + exports.code = require('./code'); + exports.keyword = require('./keyword'); +}()); +/* vim: set sw=4 ts=4 et tw=80 : */ + +},{"./ast":46,"./code":47,"./keyword":48}],50:[function(require,module,exports){ +/** + * Copyright (c) 2016, Cristian-Alexandru Staicu, + * University of Darmstadt + * + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * 3. Neither the name of the copyright holder nor the names of its + * contributors may be used to endorse or promote products derived from + * this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER + * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN + * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ +var esprima = require("esprima"); +var escodegen = require("escodegen"); +var traverse = require("ast-traverse"); + +const USER_LABEL = 0; +const CT_LABEL = 1; + +const ONLY_LITERALS = 0; +const SAME_AST = 1; +const SAME_AST_AND_ONLY_LITERALS = 2; +const ONLY_LITERALS_AND_IDENTIFIERS = 3; +const ONLY_JSON = 4; +const NO_FUNCTION_CALLS = 5; + +var currentPolicy = SAME_AST_AND_ONLY_LITERALS; + +const HOLE = "HOLE"; + +function sanitize(cts) { + + var userInput = []; + var finalString = ""; + var templateString = "" + var currentCol = 0; + var currentLine = 1; + var updateVarAndCol = function(toAdd) { + var nolines = getNumberLines(toAdd); + currentLine += nolines - 1; + if (nolines > 1) + currentCol = getCharIndex(toAdd); + else + currentCol += getCharIndex(toAdd); + } + for (var i = 0; i < cts.length; i++) { + finalString += cts[i]; + updateVarAndCol(cts[i]) + templateString += cts[i]; + if (i < cts.length - 1) { + var toAdd = arguments[i + 1].toString(); + var startLine = currentLine; + var startCol = currentCol; + updateVarAndCol(toAdd); + userInput.push({startLine : startLine, startCol : startCol, endLine : currentLine, endCol : currentCol}); + finalString += toAdd; + templateString += HOLE; + } + } + try { + var origAst = esprima.parse(templateString, {loc: true}); + var ast = esprima.parse(finalString, {loc: true}); + } catch (e) { + return finalString; + } + + traverse(ast, { + pre: function(node) { + var done = false; + for (var i = 0; i < userInput.length; i++) { + + if (contained(userInput[i].startLine, userInput[i].startCol, + userInput[i].endLine, userInput[i].endCol, + node.loc.start.line, node.loc.start.column, + node.loc.end.line, node.loc.end.column)) { // if the node is fully inside userInput + node.label = USER_LABEL; + done = true; + } + } + if (done === false) + node.label = CT_LABEL; + } + }); + ast = removeMalicious(ast, origAst); + try { + return escodegen.generate(ast); + } catch (e) { + return ""; + } +} + +/** + * Check if 2 dimensional interval B is included in interval A. + */ +function contained(startLineA, startColA, endLineA, endColA, startLineB, startColB, endLineB, endColB) { + if (startLineB < startLineA) + return false; + if (endLineB > endLineA) + return false; + if (startLineB === startLineA) { + if (startColB < startColA) + return false; + if (endColB > endColA) + return false; + } + return true; +} + +function getNumberLines(str) { + return str.split(/\r\n|\r|\n/).length; +} + +function getCharIndex(str) { + var lines = str.split(/\r\n|\r|\n/); + return lines[lines.length - 1].length; +} + +function removeMalicious(runtimeAst, templateAst) { + var toRemove = []; + if (currentPolicy === SAME_AST || currentPolicy == SAME_AST_AND_ONLY_LITERALS) { + removeNewNodes(runtimeAst, templateAst) + function removeNewNodes(object, templateObject) { + var key, child; + for (key in object) { + if (key != "loc" && object.hasOwnProperty(key)) { + child = object[key]; + + if (typeof child === 'object' && child !== null) { + if (templateObject[key] && templateObject[key].name === HOLE) { + //skipp + } else if (templateObject && templateObject[key] && (templateObject[key].type === child.type || typeof child === typeof templateObject[key])) { + removeNewNodes(child, templateObject[key]); + } else { + if (isInt(key)) + object.splice(key, 1); + else + delete object[key]; + } + } + } + } + } + } + if (currentPolicy === ONLY_LITERALS || currentPolicy == SAME_AST_AND_ONLY_LITERALS) { + traverse(runtimeAst, { + pre: function(node) { + + if (node.label === USER_LABEL && node.type != "Literal") { + toRemove.push(node); + } + } + }); + } + if (currentPolicy === ONLY_LITERALS_AND_IDENTIFIERS) { + traverse(runtimeAst, { + pre: function(node) { + + if (node.label === USER_LABEL && node.type != "Literal" && node.type != "Identifier") { + toRemove.push(node); + } + } + }); + } + if (currentPolicy === ONLY_JSON) { + var types = []; + traverse(runtimeAst, { + pre: function(node) { + if (node.label === USER_LABEL && node.type != "ObjectExpression" && node.type != "Property" && node.type != "Literal" && node.type != "ArrayExpression") { + toRemove.push(node); + } + } + }); + } + if (currentPolicy === NO_FUNCTION_CALLS) { + var types = []; + traverse(runtimeAst, { + pre: function(node) { + if (node.label === USER_LABEL && node.type === "CallExpression") { + toRemove.push(node); + } + } + }); + } + trav(runtimeAst, null, null, null); + + function trav(object, parent) { + var key, child; + for (key in object) { + if (object.hasOwnProperty(key)) { + child = object[key]; + if (typeof child === 'object' && child !== null) { + if (toRemove.indexOf(child) === -1) + trav(child, object); + else { + if (isInt(key)) + object.splice(key, 1); + else + delete object[key]; + } + } + } + } + } + return runtimeAst; +} + +module.exports = sanitize; +module.exports.sanitizShim = sanitizShim; + +module.exports.ONLY_LITERALS = ONLY_LITERALS; +module.exports.SAME_AST = SAME_AST; +module.exports.SAME_AST_AND_ONLY_LITERALS = SAME_AST_AND_ONLY_LITERALS; +module.exports.ONLY_LITERALS_AND_IDENTIFIERS = ONLY_LITERALS_AND_IDENTIFIERS; +module.exports.ONLY_JSON = ONLY_JSON; +module.exports.NO_FUNCTION_CALLS = NO_FUNCTION_CALLS; + +module.exports.setPolicy = function(policy) { + if (policy) + currentPolicy = policy; + return sanitize; +} + +module.exports.getNumberLines = getNumberLines; +module.exports.getCharIndex = getCharIndex; + +function isInt(n) { + return n % 1 === 0; +} + +function sanitizShim(template, context) { + var compile = require('es6-template-strings/compile') + var compiled = compile(template); + var resolve = require('es6-template-strings/resolve'); + return sanitize.apply(null, resolve(compiled, context)); +} + +},{"ast-traverse":2,"es6-template-strings/compile":35,"es6-template-strings/resolve":36,"escodegen":37,"esprima":44}],51:[function(require,module,exports){ +/* + * Copyright 2009-2011 Mozilla Foundation and contributors + * Licensed under the New BSD license. See LICENSE.txt or: + * http://opensource.org/licenses/BSD-3-Clause + */ +exports.SourceMapGenerator = require('./source-map/source-map-generator').SourceMapGenerator; +exports.SourceMapConsumer = require('./source-map/source-map-consumer').SourceMapConsumer; +exports.SourceNode = require('./source-map/source-node').SourceNode; + +},{"./source-map/source-map-consumer":59,"./source-map/source-map-generator":60,"./source-map/source-node":61}],52:[function(require,module,exports){ +/* -*- Mode: js; js-indent-level: 2; -*- */ +/* + * Copyright 2011 Mozilla Foundation and contributors + * Licensed under the New BSD license. See LICENSE or: + * http://opensource.org/licenses/BSD-3-Clause + */ +if (typeof define !== 'function') { + var define = require('amdefine')(module, require); +} +define(function (require, exports, module) { + + var util = require('./util'); + + /** + * A data structure which is a combination of an array and a set. Adding a new + * member is O(1), testing for membership is O(1), and finding the index of an + * element is O(1). Removing elements from the set is not supported. Only + * strings are supported for membership. + */ + function ArraySet() { + this._array = []; + this._set = {}; + } + + /** + * Static method for creating ArraySet instances from an existing array. + */ + ArraySet.fromArray = function ArraySet_fromArray(aArray, aAllowDuplicates) { + var set = new ArraySet(); + for (var i = 0, len = aArray.length; i < len; i++) { + set.add(aArray[i], aAllowDuplicates); + } + return set; + }; + + /** + * Add the given string to this set. + * + * @param String aStr + */ + ArraySet.prototype.add = function ArraySet_add(aStr, aAllowDuplicates) { + var isDuplicate = this.has(aStr); + var idx = this._array.length; + if (!isDuplicate || aAllowDuplicates) { + this._array.push(aStr); + } + if (!isDuplicate) { + this._set[util.toSetString(aStr)] = idx; + } + }; + + /** + * Is the given string a member of this set? + * + * @param String aStr + */ + ArraySet.prototype.has = function ArraySet_has(aStr) { + return Object.prototype.hasOwnProperty.call(this._set, + util.toSetString(aStr)); + }; + + /** + * What is the index of the given string in the array? + * + * @param String aStr + */ + ArraySet.prototype.indexOf = function ArraySet_indexOf(aStr) { + if (this.has(aStr)) { + return this._set[util.toSetString(aStr)]; + } + throw new Error('"' + aStr + '" is not in the set.'); + }; + + /** + * What is the element at the given index? + * + * @param Number aIdx + */ + ArraySet.prototype.at = function ArraySet_at(aIdx) { + if (aIdx >= 0 && aIdx < this._array.length) { + return this._array[aIdx]; + } + throw new Error('No element indexed by ' + aIdx); + }; + + /** + * Returns the array representation of this set (which has the proper indices + * indicated by indexOf). Note that this is a copy of the internal array used + * for storing the members so that no one can mess with internal state. + */ + ArraySet.prototype.toArray = function ArraySet_toArray() { + return this._array.slice(); + }; + + exports.ArraySet = ArraySet; + +}); + +},{"./util":62,"amdefine":1}],53:[function(require,module,exports){ +/* -*- Mode: js; js-indent-level: 2; -*- */ +/* + * Copyright 2011 Mozilla Foundation and contributors + * Licensed under the New BSD license. See LICENSE or: + * http://opensource.org/licenses/BSD-3-Clause + * + * Based on the Base 64 VLQ implementation in Closure Compiler: + * https://code.google.com/p/closure-compiler/source/browse/trunk/src/com/google/debugging/sourcemap/Base64VLQ.java + * + * Copyright 2011 The Closure Compiler Authors. All rights reserved. + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials provided + * with the distribution. + * * Neither the name of Google Inc. nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ +if (typeof define !== 'function') { + var define = require('amdefine')(module, require); +} +define(function (require, exports, module) { + + var base64 = require('./base64'); + + // A single base 64 digit can contain 6 bits of data. For the base 64 variable + // length quantities we use in the source map spec, the first bit is the sign, + // the next four bits are the actual value, and the 6th bit is the + // continuation bit. The continuation bit tells us whether there are more + // digits in this value following this digit. + // + // Continuation + // | Sign + // | | + // V V + // 101011 + + var VLQ_BASE_SHIFT = 5; + + // binary: 100000 + var VLQ_BASE = 1 << VLQ_BASE_SHIFT; + + // binary: 011111 + var VLQ_BASE_MASK = VLQ_BASE - 1; + + // binary: 100000 + var VLQ_CONTINUATION_BIT = VLQ_BASE; + + /** + * Converts from a two-complement value to a value where the sign bit is + * placed in the least significant bit. For example, as decimals: + * 1 becomes 2 (10 binary), -1 becomes 3 (11 binary) + * 2 becomes 4 (100 binary), -2 becomes 5 (101 binary) + */ + function toVLQSigned(aValue) { + return aValue < 0 + ? ((-aValue) << 1) + 1 + : (aValue << 1) + 0; + } + + /** + * Converts to a two-complement value from a value where the sign bit is + * placed in the least significant bit. For example, as decimals: + * 2 (10 binary) becomes 1, 3 (11 binary) becomes -1 + * 4 (100 binary) becomes 2, 5 (101 binary) becomes -2 + */ + function fromVLQSigned(aValue) { + var isNegative = (aValue & 1) === 1; + var shifted = aValue >> 1; + return isNegative + ? -shifted + : shifted; + } + + /** + * Returns the base 64 VLQ encoded value. + */ + exports.encode = function base64VLQ_encode(aValue) { + var encoded = ""; + var digit; + + var vlq = toVLQSigned(aValue); + + do { + digit = vlq & VLQ_BASE_MASK; + vlq >>>= VLQ_BASE_SHIFT; + if (vlq > 0) { + // There are still more digits in this value, so we must make sure the + // continuation bit is marked. + digit |= VLQ_CONTINUATION_BIT; + } + encoded += base64.encode(digit); + } while (vlq > 0); + + return encoded; + }; + + /** + * Decodes the next base 64 VLQ value from the given string and returns the + * value and the rest of the string via the out parameter. + */ + exports.decode = function base64VLQ_decode(aStr, aOutParam) { + var i = 0; + var strLen = aStr.length; + var result = 0; + var shift = 0; + var continuation, digit; + + do { + if (i >= strLen) { + throw new Error("Expected more digits in base 64 VLQ value."); + } + digit = base64.decode(aStr.charAt(i++)); + continuation = !!(digit & VLQ_CONTINUATION_BIT); + digit &= VLQ_BASE_MASK; + result = result + (digit << shift); + shift += VLQ_BASE_SHIFT; + } while (continuation); + + aOutParam.value = fromVLQSigned(result); + aOutParam.rest = aStr.slice(i); + }; + +}); + +},{"./base64":54,"amdefine":1}],54:[function(require,module,exports){ +/* -*- Mode: js; js-indent-level: 2; -*- */ +/* + * Copyright 2011 Mozilla Foundation and contributors + * Licensed under the New BSD license. See LICENSE or: + * http://opensource.org/licenses/BSD-3-Clause + */ +if (typeof define !== 'function') { + var define = require('amdefine')(module, require); +} +define(function (require, exports, module) { + + var charToIntMap = {}; + var intToCharMap = {}; + + 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/' + .split('') + .forEach(function (ch, index) { + charToIntMap[ch] = index; + intToCharMap[index] = ch; + }); + + /** + * Encode an integer in the range of 0 to 63 to a single base 64 digit. + */ + exports.encode = function base64_encode(aNumber) { + if (aNumber in intToCharMap) { + return intToCharMap[aNumber]; + } + throw new TypeError("Must be between 0 and 63: " + aNumber); + }; + + /** + * Decode a single base 64 digit to an integer. + */ + exports.decode = function base64_decode(aChar) { + if (aChar in charToIntMap) { + return charToIntMap[aChar]; + } + throw new TypeError("Not a valid base 64 digit: " + aChar); + }; + +}); + +},{"amdefine":1}],55:[function(require,module,exports){ +/* -*- Mode: js; js-indent-level: 2; -*- */ +/* + * Copyright 2011 Mozilla Foundation and contributors + * Licensed under the New BSD license. See LICENSE or: + * http://opensource.org/licenses/BSD-3-Clause + */ +if (typeof define !== 'function') { + var define = require('amdefine')(module, require); +} +define(function (require, exports, module) { + + var util = require('./util'); + var binarySearch = require('./binary-search'); + var ArraySet = require('./array-set').ArraySet; + var base64VLQ = require('./base64-vlq'); + var SourceMapConsumer = require('./source-map-consumer').SourceMapConsumer; + + /** + * A BasicSourceMapConsumer instance represents a parsed source map which we can + * query for information about the original file positions by giving it a file + * position in the generated source. + * + * The only parameter is the raw source map (either as a JSON string, or + * already parsed to an object). According to the spec, source maps have the + * following attributes: + * + * - version: Which version of the source map spec this map is following. + * - sources: An array of URLs to the original source files. + * - names: An array of identifiers which can be referrenced by individual mappings. + * - sourceRoot: Optional. The URL root from which all sources are relative. + * - sourcesContent: Optional. An array of contents of the original source files. + * - mappings: A string of base64 VLQs which contain the actual mappings. + * - file: Optional. The generated file this source map is associated with. + * + * Here is an example source map, taken from the source map spec[0]: + * + * { + * version : 3, + * file: "out.js", + * sourceRoot : "", + * sources: ["foo.js", "bar.js"], + * names: ["src", "maps", "are", "fun"], + * mappings: "AA,AB;;ABCDE;" + * } + * + * [0]: https://docs.google.com/document/d/1U1RGAehQwRypUTovF1KRlpiOFze0b-_2gc6fAH0KY0k/edit?pli=1# + */ + function BasicSourceMapConsumer(aSourceMap) { + var sourceMap = aSourceMap; + if (typeof aSourceMap === 'string') { + sourceMap = JSON.parse(aSourceMap.replace(/^\)\]\}'/, '')); + } + + var version = util.getArg(sourceMap, 'version'); + var sources = util.getArg(sourceMap, 'sources'); + // Sass 3.3 leaves out the 'names' array, so we deviate from the spec (which + // requires the array) to play nice here. + var names = util.getArg(sourceMap, 'names', []); + var sourceRoot = util.getArg(sourceMap, 'sourceRoot', null); + var sourcesContent = util.getArg(sourceMap, 'sourcesContent', null); + var mappings = util.getArg(sourceMap, 'mappings'); + var file = util.getArg(sourceMap, 'file', null); + + // Once again, Sass deviates from the spec and supplies the version as a + // string rather than a number, so we use loose equality checking here. + if (version != this._version) { + throw new Error('Unsupported version: ' + version); + } + + // Some source maps produce relative source paths like "./foo.js" instead of + // "foo.js". Normalize these first so that future comparisons will succeed. + // See bugzil.la/1090768. + sources = sources.map(util.normalize); + + // Pass `true` below to allow duplicate names and sources. While source maps + // are intended to be compressed and deduplicated, the TypeScript compiler + // sometimes generates source maps with duplicates in them. See Github issue + // #72 and bugzil.la/889492. + this._names = ArraySet.fromArray(names, true); + this._sources = ArraySet.fromArray(sources, true); + + this.sourceRoot = sourceRoot; + this.sourcesContent = sourcesContent; + this._mappings = mappings; + this.file = file; + } + + BasicSourceMapConsumer.prototype = Object.create(SourceMapConsumer.prototype); + BasicSourceMapConsumer.prototype.consumer = SourceMapConsumer; + + /** + * Create a BasicSourceMapConsumer from a SourceMapGenerator. + * + * @param SourceMapGenerator aSourceMap + * The source map that will be consumed. + * @returns BasicSourceMapConsumer + */ + BasicSourceMapConsumer.fromSourceMap = + function SourceMapConsumer_fromSourceMap(aSourceMap) { + var smc = Object.create(BasicSourceMapConsumer.prototype); + + smc._names = ArraySet.fromArray(aSourceMap._names.toArray(), true); + smc._sources = ArraySet.fromArray(aSourceMap._sources.toArray(), true); + smc.sourceRoot = aSourceMap._sourceRoot; + smc.sourcesContent = aSourceMap._generateSourcesContent(smc._sources.toArray(), + smc.sourceRoot); + smc.file = aSourceMap._file; + + smc.__generatedMappings = aSourceMap._mappings.toArray().slice(); + smc.__originalMappings = aSourceMap._mappings.toArray().slice() + .sort(util.compareByOriginalPositions); + + return smc; + }; + + /** + * The version of the source mapping spec that we are consuming. + */ + BasicSourceMapConsumer.prototype._version = 3; + + /** + * The list of original sources. + */ + Object.defineProperty(BasicSourceMapConsumer.prototype, 'sources', { + get: function () { + return this._sources.toArray().map(function (s) { + return this.sourceRoot != null ? util.join(this.sourceRoot, s) : s; + }, this); + } + }); + + /** + * Parse the mappings in a string in to a data structure which we can easily + * query (the ordered arrays in the `this.__generatedMappings` and + * `this.__originalMappings` properties). + */ + BasicSourceMapConsumer.prototype._parseMappings = + function SourceMapConsumer_parseMappings(aStr, aSourceRoot) { + var generatedLine = 1; + var previousGeneratedColumn = 0; + var previousOriginalLine = 0; + var previousOriginalColumn = 0; + var previousSource = 0; + var previousName = 0; + var str = aStr; + var temp = {}; + var mapping; + + while (str.length > 0) { + if (str.charAt(0) === ';') { + generatedLine++; + str = str.slice(1); + previousGeneratedColumn = 0; + } + else if (str.charAt(0) === ',') { + str = str.slice(1); + } + else { + mapping = {}; + mapping.generatedLine = generatedLine; + + // Generated column. + base64VLQ.decode(str, temp); + mapping.generatedColumn = previousGeneratedColumn + temp.value; + previousGeneratedColumn = mapping.generatedColumn; + str = temp.rest; + + if (str.length > 0 && !this._nextCharIsMappingSeparator(str)) { + // Original source. + base64VLQ.decode(str, temp); + mapping.source = this._sources.at(previousSource + temp.value); + previousSource += temp.value; + str = temp.rest; + if (str.length === 0 || this._nextCharIsMappingSeparator(str)) { + throw new Error('Found a source, but no line and column'); + } + + // Original line. + base64VLQ.decode(str, temp); + mapping.originalLine = previousOriginalLine + temp.value; + previousOriginalLine = mapping.originalLine; + // Lines are stored 0-based + mapping.originalLine += 1; + str = temp.rest; + if (str.length === 0 || this._nextCharIsMappingSeparator(str)) { + throw new Error('Found a source and line, but no column'); + } + + // Original column. + base64VLQ.decode(str, temp); + mapping.originalColumn = previousOriginalColumn + temp.value; + previousOriginalColumn = mapping.originalColumn; + str = temp.rest; + + if (str.length > 0 && !this._nextCharIsMappingSeparator(str)) { + // Original name. + base64VLQ.decode(str, temp); + mapping.name = this._names.at(previousName + temp.value); + previousName += temp.value; + str = temp.rest; + } + } + + this.__generatedMappings.push(mapping); + if (typeof mapping.originalLine === 'number') { + this.__originalMappings.push(mapping); + } + } + } + + this.__generatedMappings.sort(util.compareByGeneratedPositions); + this.__originalMappings.sort(util.compareByOriginalPositions); + }; + + /** + * Find the mapping that best matches the hypothetical "needle" mapping that + * we are searching for in the given "haystack" of mappings. + */ + BasicSourceMapConsumer.prototype._findMapping = + function SourceMapConsumer_findMapping(aNeedle, aMappings, aLineName, + aColumnName, aComparator) { + // To return the position we are searching for, we must first find the + // mapping for the given position and then return the opposite position it + // points to. Because the mappings are sorted, we can use binary search to + // find the best mapping. + + if (aNeedle[aLineName] <= 0) { + throw new TypeError('Line must be greater than or equal to 1, got ' + + aNeedle[aLineName]); + } + if (aNeedle[aColumnName] < 0) { + throw new TypeError('Column must be greater than or equal to 0, got ' + + aNeedle[aColumnName]); + } + + return binarySearch.search(aNeedle, aMappings, aComparator); + }; + + /** + * Compute the last column for each generated mapping. The last column is + * inclusive. + */ + BasicSourceMapConsumer.prototype.computeColumnSpans = + function SourceMapConsumer_computeColumnSpans() { + for (var index = 0; index < this._generatedMappings.length; ++index) { + var mapping = this._generatedMappings[index]; + + // Mappings do not contain a field for the last generated columnt. We + // can come up with an optimistic estimate, however, by assuming that + // mappings are contiguous (i.e. given two consecutive mappings, the + // first mapping ends where the second one starts). + if (index + 1 < this._generatedMappings.length) { + var nextMapping = this._generatedMappings[index + 1]; + + if (mapping.generatedLine === nextMapping.generatedLine) { + mapping.lastGeneratedColumn = nextMapping.generatedColumn - 1; + continue; + } + } + + // The last mapping for each line spans the entire line. + mapping.lastGeneratedColumn = Infinity; + } + }; + + /** + * Returns the original source, line, and column information for the generated + * source's line and column positions provided. The only argument is an object + * with the following properties: + * + * - line: The line number in the generated source. + * - column: The column number in the generated source. + * + * and an object is returned with the following properties: + * + * - source: The original source file, or null. + * - line: The line number in the original source, or null. + * - column: The column number in the original source, or null. + * - name: The original identifier, or null. + */ + BasicSourceMapConsumer.prototype.originalPositionFor = + function SourceMapConsumer_originalPositionFor(aArgs) { + var needle = { + generatedLine: util.getArg(aArgs, 'line'), + generatedColumn: util.getArg(aArgs, 'column') + }; + + var index = this._findMapping(needle, + this._generatedMappings, + "generatedLine", + "generatedColumn", + util.compareByGeneratedPositions); + + if (index >= 0) { + var mapping = this._generatedMappings[index]; + + if (mapping.generatedLine === needle.generatedLine) { + var source = util.getArg(mapping, 'source', null); + if (source != null && this.sourceRoot != null) { + source = util.join(this.sourceRoot, source); + } + return { + source: source, + line: util.getArg(mapping, 'originalLine', null), + column: util.getArg(mapping, 'originalColumn', null), + name: util.getArg(mapping, 'name', null) + }; + } + } + + return { + source: null, + line: null, + column: null, + name: null + }; + }; + + /** + * Returns the original source content. The only argument is the url of the + * original source file. Returns null if no original source content is + * availible. + */ + BasicSourceMapConsumer.prototype.sourceContentFor = + function SourceMapConsumer_sourceContentFor(aSource, nullOnMissing) { + if (!this.sourcesContent) { + return null; + } + + if (this.sourceRoot != null) { + aSource = util.relative(this.sourceRoot, aSource); + } + + if (this._sources.has(aSource)) { + return this.sourcesContent[this._sources.indexOf(aSource)]; + } + + var url; + if (this.sourceRoot != null + && (url = util.urlParse(this.sourceRoot))) { + // XXX: file:// URIs and absolute paths lead to unexpected behavior for + // many users. We can help them out when they expect file:// URIs to + // behave like it would if they were running a local HTTP server. See + // https://bugzilla.mozilla.org/show_bug.cgi?id=885597. + var fileUriAbsPath = aSource.replace(/^file:\/\//, ""); + if (url.scheme == "file" + && this._sources.has(fileUriAbsPath)) { + return this.sourcesContent[this._sources.indexOf(fileUriAbsPath)] + } + + if ((!url.path || url.path == "/") + && this._sources.has("/" + aSource)) { + return this.sourcesContent[this._sources.indexOf("/" + aSource)]; + } + } + + // This function is used recursively from + // IndexedSourceMapConsumer.prototype.sourceContentFor. In that case, we + // don't want to throw if we can't find the source - we just want to + // return null, so we provide a flag to exit gracefully. + if (nullOnMissing) { + return null; + } + else { + throw new Error('"' + aSource + '" is not in the SourceMap.'); + } + }; + + /** + * Returns the generated line and column information for the original source, + * line, and column positions provided. The only argument is an object with + * the following properties: + * + * - source: The filename of the original source. + * - line: The line number in the original source. + * - column: The column number in the original source. + * + * and an object is returned with the following properties: + * + * - line: The line number in the generated source, or null. + * - column: The column number in the generated source, or null. + */ + BasicSourceMapConsumer.prototype.generatedPositionFor = + function SourceMapConsumer_generatedPositionFor(aArgs) { + var needle = { + source: util.getArg(aArgs, 'source'), + originalLine: util.getArg(aArgs, 'line'), + originalColumn: util.getArg(aArgs, 'column') + }; + + if (this.sourceRoot != null) { + needle.source = util.relative(this.sourceRoot, needle.source); + } + + var index = this._findMapping(needle, + this._originalMappings, + "originalLine", + "originalColumn", + util.compareByOriginalPositions); + + if (index >= 0) { + var mapping = this._originalMappings[index]; + + return { + line: util.getArg(mapping, 'generatedLine', null), + column: util.getArg(mapping, 'generatedColumn', null), + lastColumn: util.getArg(mapping, 'lastGeneratedColumn', null) + }; + } + + return { + line: null, + column: null, + lastColumn: null + }; + }; + + exports.BasicSourceMapConsumer = BasicSourceMapConsumer; + +}); + +},{"./array-set":52,"./base64-vlq":53,"./binary-search":56,"./source-map-consumer":59,"./util":62,"amdefine":1}],56:[function(require,module,exports){ +/* -*- Mode: js; js-indent-level: 2; -*- */ +/* + * Copyright 2011 Mozilla Foundation and contributors + * Licensed under the New BSD license. See LICENSE or: + * http://opensource.org/licenses/BSD-3-Clause + */ +if (typeof define !== 'function') { + var define = require('amdefine')(module, require); +} +define(function (require, exports, module) { + + /** + * Recursive implementation of binary search. + * + * @param aLow Indices here and lower do not contain the needle. + * @param aHigh Indices here and higher do not contain the needle. + * @param aNeedle The element being searched for. + * @param aHaystack The non-empty array being searched. + * @param aCompare Function which takes two elements and returns -1, 0, or 1. + */ + function recursiveSearch(aLow, aHigh, aNeedle, aHaystack, aCompare) { + // This function terminates when one of the following is true: + // + // 1. We find the exact element we are looking for. + // + // 2. We did not find the exact element, but we can return the index of + // the next closest element that is less than that element. + // + // 3. We did not find the exact element, and there is no next-closest + // element which is less than the one we are searching for, so we + // return -1. + var mid = Math.floor((aHigh - aLow) / 2) + aLow; + var cmp = aCompare(aNeedle, aHaystack[mid], true); + if (cmp === 0) { + // Found the element we are looking for. + return mid; + } + else if (cmp > 0) { + // aHaystack[mid] is greater than our needle. + if (aHigh - mid > 1) { + // The element is in the upper half. + return recursiveSearch(mid, aHigh, aNeedle, aHaystack, aCompare); + } + // We did not find an exact match, return the next closest one + // (termination case 2). + return mid; + } + else { + // aHaystack[mid] is less than our needle. + if (mid - aLow > 1) { + // The element is in the lower half. + return recursiveSearch(aLow, mid, aNeedle, aHaystack, aCompare); + } + // The exact needle element was not found in this haystack. Determine if + // we are in termination case (2) or (3) and return the appropriate thing. + return aLow < 0 ? -1 : aLow; + } + } + + /** + * This is an implementation of binary search which will always try and return + * the index of next lowest value checked if there is no exact hit. This is + * because mappings between original and generated line/col pairs are single + * points, and there is an implicit region between each of them, so a miss + * just means that you aren't on the very start of a region. + * + * @param aNeedle The element you are looking for. + * @param aHaystack The array that is being searched. + * @param aCompare A function which takes the needle and an element in the + * array and returns -1, 0, or 1 depending on whether the needle is less + * than, equal to, or greater than the element, respectively. + */ + exports.search = function search(aNeedle, aHaystack, aCompare) { + if (aHaystack.length === 0) { + return -1; + } + return recursiveSearch(-1, aHaystack.length, aNeedle, aHaystack, aCompare) + }; + +}); + +},{"amdefine":1}],57:[function(require,module,exports){ +/* -*- Mode: js; js-indent-level: 2; -*- */ +/* + * Copyright 2011 Mozilla Foundation and contributors + * Licensed under the New BSD license. See LICENSE or: + * http://opensource.org/licenses/BSD-3-Clause + */ +if (typeof define !== 'function') { + var define = require('amdefine')(module, require); +} +define(function (require, exports, module) { + + var util = require('./util'); + var binarySearch = require('./binary-search'); + var SourceMapConsumer = require('./source-map-consumer').SourceMapConsumer; + var BasicSourceMapConsumer = require('./basic-source-map-consumer').BasicSourceMapConsumer; + + /** + * An IndexedSourceMapConsumer instance represents a parsed source map which + * we can query for information. It differs from BasicSourceMapConsumer in + * that it takes "indexed" source maps (i.e. ones with a "sections" field) as + * input. + * + * The only parameter is a raw source map (either as a JSON string, or already + * parsed to an object). According to the spec for indexed source maps, they + * have the following attributes: + * + * - version: Which version of the source map spec this map is following. + * - file: Optional. The generated file this source map is associated with. + * - sections: A list of section definitions. + * + * Each value under the "sections" field has two fields: + * - offset: The offset into the original specified at which this section + * begins to apply, defined as an object with a "line" and "column" + * field. + * - map: A source map definition. This source map could also be indexed, + * but doesn't have to be. + * + * Instead of the "map" field, it's also possible to have a "url" field + * specifying a URL to retrieve a source map from, but that's currently + * unsupported. + * + * Here's an example source map, taken from the source map spec[0], but + * modified to omit a section which uses the "url" field. + * + * { + * version : 3, + * file: "app.js", + * sections: [{ + * offset: {line:100, column:10}, + * map: { + * version : 3, + * file: "section.js", + * sources: ["foo.js", "bar.js"], + * names: ["src", "maps", "are", "fun"], + * mappings: "AAAA,E;;ABCDE;" + * } + * }], + * } + * + * [0]: https://docs.google.com/document/d/1U1RGAehQwRypUTovF1KRlpiOFze0b-_2gc6fAH0KY0k/edit#heading=h.535es3xeprgt + */ + function IndexedSourceMapConsumer(aSourceMap) { + var sourceMap = aSourceMap; + if (typeof aSourceMap === 'string') { + sourceMap = JSON.parse(aSourceMap.replace(/^\)\]\}'/, '')); + } + + var version = util.getArg(sourceMap, 'version'); + var sections = util.getArg(sourceMap, 'sections'); + + if (version != this._version) { + throw new Error('Unsupported version: ' + version); + } + + var lastOffset = { + line: -1, + column: 0 + }; + this._sections = sections.map(function (s) { + if (s.url) { + // The url field will require support for asynchronicity. + // See https://github.com/mozilla/source-map/issues/16 + throw new Error('Support for url field in sections not implemented.'); + } + var offset = util.getArg(s, 'offset'); + var offsetLine = util.getArg(offset, 'line'); + var offsetColumn = util.getArg(offset, 'column'); + + if (offsetLine < lastOffset.line || + (offsetLine === lastOffset.line && offsetColumn < lastOffset.column)) { + throw new Error('Section offsets must be ordered and non-overlapping.'); + } + lastOffset = offset; + + return { + generatedOffset: { + // The offset fields are 0-based, but we use 1-based indices when + // encoding/decoding from VLQ. + generatedLine: offsetLine + 1, + generatedColumn: offsetColumn + 1 + }, + consumer: new SourceMapConsumer(util.getArg(s, 'map')) + } + }); + } + + IndexedSourceMapConsumer.prototype = Object.create(SourceMapConsumer.prototype); + IndexedSourceMapConsumer.prototype.constructor = SourceMapConsumer; + + /** + * The version of the source mapping spec that we are consuming. + */ + IndexedSourceMapConsumer.prototype._version = 3; + + /** + * The list of original sources. + */ + Object.defineProperty(IndexedSourceMapConsumer.prototype, 'sources', { + get: function () { + var sources = []; + for (var i = 0; i < this._sections.length; i++) { + for (var j = 0; j < this._sections[i].consumer.sources.length; j++) { + sources.push(this._sections[i].consumer.sources[j]); + } + }; + return sources; + } + }); + + /** + * Returns the original source, line, and column information for the generated + * source's line and column positions provided. The only argument is an object + * with the following properties: + * + * - line: The line number in the generated source. + * - column: The column number in the generated source. + * + * and an object is returned with the following properties: + * + * - source: The original source file, or null. + * - line: The line number in the original source, or null. + * - column: The column number in the original source, or null. + * - name: The original identifier, or null. + */ + IndexedSourceMapConsumer.prototype.originalPositionFor = + function IndexedSourceMapConsumer_originalPositionFor(aArgs) { + var needle = { + generatedLine: util.getArg(aArgs, 'line'), + generatedColumn: util.getArg(aArgs, 'column') + }; + + // Find the section containing the generated position we're trying to map + // to an original position. + var sectionIndex = binarySearch.search(needle, this._sections, + function(needle, section) { + var cmp = needle.generatedLine - section.generatedOffset.generatedLine; + if (cmp) { + return cmp; + } + + return (needle.generatedColumn - + section.generatedOffset.generatedColumn); + }); + var section = this._sections[sectionIndex]; + + if (!section) { + return { + source: null, + line: null, + column: null, + name: null + }; + } + + return section.consumer.originalPositionFor({ + line: needle.generatedLine - + (section.generatedOffset.generatedLine - 1), + column: needle.generatedColumn - + (section.generatedOffset.generatedLine === needle.generatedLine + ? section.generatedOffset.generatedColumn - 1 + : 0) + }); + }; + + /** + * Returns the original source content. The only argument is the url of the + * original source file. Returns null if no original source content is + * available. + */ + IndexedSourceMapConsumer.prototype.sourceContentFor = + function IndexedSourceMapConsumer_sourceContentFor(aSource, nullOnMissing) { + for (var i = 0; i < this._sections.length; i++) { + var section = this._sections[i]; + + var content = section.consumer.sourceContentFor(aSource, true); + if (content) { + return content; + } + } + if (nullOnMissing) { + return null; + } + else { + throw new Error('"' + aSource + '" is not in the SourceMap.'); + } + }; + + /** + * Returns the generated line and column information for the original source, + * line, and column positions provided. The only argument is an object with + * the following properties: + * + * - source: The filename of the original source. + * - line: The line number in the original source. + * - column: The column number in the original source. + * + * and an object is returned with the following properties: + * + * - line: The line number in the generated source, or null. + * - column: The column number in the generated source, or null. + */ + IndexedSourceMapConsumer.prototype.generatedPositionFor = + function IndexedSourceMapConsumer_generatedPositionFor(aArgs) { + for (var i = 0; i < this._sections.length; i++) { + var section = this._sections[i]; + + // Only consider this section if the requested source is in the list of + // sources of the consumer. + if (section.consumer.sources.indexOf(util.getArg(aArgs, 'source')) === -1) { + continue; + } + var generatedPosition = section.consumer.generatedPositionFor(aArgs); + if (generatedPosition) { + var ret = { + line: generatedPosition.line + + (section.generatedOffset.generatedLine - 1), + column: generatedPosition.column + + (section.generatedOffset.generatedLine === generatedPosition.line + ? section.generatedOffset.generatedColumn - 1 + : 0) + }; + return ret; + } + } + + return { + line: null, + column: null + }; + }; + + /** + * Parse the mappings in a string in to a data structure which we can easily + * query (the ordered arrays in the `this.__generatedMappings` and + * `this.__originalMappings` properties). + */ + IndexedSourceMapConsumer.prototype._parseMappings = + function IndexedSourceMapConsumer_parseMappings(aStr, aSourceRoot) { + this.__generatedMappings = []; + this.__originalMappings = []; + for (var i = 0; i < this._sections.length; i++) { + var section = this._sections[i]; + var sectionMappings = section.consumer._generatedMappings; + for (var j = 0; j < sectionMappings.length; j++) { + var mapping = sectionMappings[i]; + + var source = mapping.source; + var sourceRoot = section.consumer.sourceRoot; + + if (source != null && sourceRoot != null) { + source = util.join(sourceRoot, source); + } + + // The mappings coming from the consumer for the section have + // generated positions relative to the start of the section, so we + // need to offset them to be relative to the start of the concatenated + // generated file. + var adjustedMapping = { + source: source, + generatedLine: mapping.generatedLine + + (section.generatedOffset.generatedLine - 1), + generatedColumn: mapping.column + + (section.generatedOffset.generatedLine === mapping.generatedLine) + ? section.generatedOffset.generatedColumn - 1 + : 0, + originalLine: mapping.originalLine, + originalColumn: mapping.originalColumn, + name: mapping.name + }; + + this.__generatedMappings.push(adjustedMapping); + if (typeof adjustedMapping.originalLine === 'number') { + this.__originalMappings.push(adjustedMapping); + } + }; + }; + + this.__generatedMappings.sort(util.compareByGeneratedPositions); + this.__originalMappings.sort(util.compareByOriginalPositions); + }; + + exports.IndexedSourceMapConsumer = IndexedSourceMapConsumer; +}); + +},{"./basic-source-map-consumer":55,"./binary-search":56,"./source-map-consumer":59,"./util":62,"amdefine":1}],58:[function(require,module,exports){ +/* -*- Mode: js; js-indent-level: 2; -*- */ +/* + * Copyright 2014 Mozilla Foundation and contributors + * Licensed under the New BSD license. See LICENSE or: + * http://opensource.org/licenses/BSD-3-Clause + */ +if (typeof define !== 'function') { + var define = require('amdefine')(module, require); +} +define(function (require, exports, module) { + + var util = require('./util'); + + /** + * Determine whether mappingB is after mappingA with respect to generated + * position. + */ + function generatedPositionAfter(mappingA, mappingB) { + // Optimized for most common case + var lineA = mappingA.generatedLine; + var lineB = mappingB.generatedLine; + var columnA = mappingA.generatedColumn; + var columnB = mappingB.generatedColumn; + return lineB > lineA || lineB == lineA && columnB >= columnA || + util.compareByGeneratedPositions(mappingA, mappingB) <= 0; + } + + /** + * A data structure to provide a sorted view of accumulated mappings in a + * performance conscious manner. It trades a neglibable overhead in general + * case for a large speedup in case of mappings being added in order. + */ + function MappingList() { + this._array = []; + this._sorted = true; + // Serves as infimum + this._last = {generatedLine: -1, generatedColumn: 0}; + } + + /** + * Iterate through internal items. This method takes the same arguments that + * `Array.prototype.forEach` takes. + * + * NOTE: The order of the mappings is NOT guaranteed. + */ + MappingList.prototype.unsortedForEach = + function MappingList_forEach(aCallback, aThisArg) { + this._array.forEach(aCallback, aThisArg); + }; + + /** + * Add the given source mapping. + * + * @param Object aMapping + */ + MappingList.prototype.add = function MappingList_add(aMapping) { + var mapping; + if (generatedPositionAfter(this._last, aMapping)) { + this._last = aMapping; + this._array.push(aMapping); + } else { + this._sorted = false; + this._array.push(aMapping); + } + }; + + /** + * Returns the flat, sorted array of mappings. The mappings are sorted by + * generated position. + * + * WARNING: This method returns internal data without copying, for + * performance. The return value must NOT be mutated, and should be treated as + * an immutable borrow. If you want to take ownership, you must make your own + * copy. + */ + MappingList.prototype.toArray = function MappingList_toArray() { + if (!this._sorted) { + this._array.sort(util.compareByGeneratedPositions); + this._sorted = true; + } + return this._array; + }; + + exports.MappingList = MappingList; + +}); + +},{"./util":62,"amdefine":1}],59:[function(require,module,exports){ +/* -*- Mode: js; js-indent-level: 2; -*- */ +/* + * Copyright 2011 Mozilla Foundation and contributors + * Licensed under the New BSD license. See LICENSE or: + * http://opensource.org/licenses/BSD-3-Clause + */ +if (typeof define !== 'function') { + var define = require('amdefine')(module, require); +} +define(function (require, exports, module) { + + var util = require('./util'); + + function SourceMapConsumer(aSourceMap) { + var sourceMap = aSourceMap; + if (typeof aSourceMap === 'string') { + sourceMap = JSON.parse(aSourceMap.replace(/^\)\]\}'/, '')); + } + + // We do late requires because the subclasses require() this file. + if (sourceMap.sections != null) { + var indexedSourceMapConsumer = require('./indexed-source-map-consumer'); + return new indexedSourceMapConsumer.IndexedSourceMapConsumer(sourceMap); + } else { + var basicSourceMapConsumer = require('./basic-source-map-consumer'); + return new basicSourceMapConsumer.BasicSourceMapConsumer(sourceMap); + } + } + + SourceMapConsumer.fromSourceMap = function(aSourceMap) { + var basicSourceMapConsumer = require('./basic-source-map-consumer'); + return basicSourceMapConsumer.BasicSourceMapConsumer + .fromSourceMap(aSourceMap); + } + + /** + * The version of the source mapping spec that we are consuming. + */ + SourceMapConsumer.prototype._version = 3; + + + // `__generatedMappings` and `__originalMappings` are arrays that hold the + // parsed mapping coordinates from the source map's "mappings" attribute. They + // are lazily instantiated, accessed via the `_generatedMappings` and + // `_originalMappings` getters respectively, and we only parse the mappings + // and create these arrays once queried for a source location. We jump through + // these hoops because there can be many thousands of mappings, and parsing + // them is expensive, so we only want to do it if we must. + // + // Each object in the arrays is of the form: + // + // { + // generatedLine: The line number in the generated code, + // generatedColumn: The column number in the generated code, + // source: The path to the original source file that generated this + // chunk of code, + // originalLine: The line number in the original source that + // corresponds to this chunk of generated code, + // originalColumn: The column number in the original source that + // corresponds to this chunk of generated code, + // name: The name of the original symbol which generated this chunk of + // code. + // } + // + // All properties except for `generatedLine` and `generatedColumn` can be + // `null`. + // + // `_generatedMappings` is ordered by the generated positions. + // + // `_originalMappings` is ordered by the original positions. + + SourceMapConsumer.prototype.__generatedMappings = null; + Object.defineProperty(SourceMapConsumer.prototype, '_generatedMappings', { + get: function () { + if (!this.__generatedMappings) { + this.__generatedMappings = []; + this.__originalMappings = []; + this._parseMappings(this._mappings, this.sourceRoot); + } + + return this.__generatedMappings; + } + }); + + SourceMapConsumer.prototype.__originalMappings = null; + Object.defineProperty(SourceMapConsumer.prototype, '_originalMappings', { + get: function () { + if (!this.__originalMappings) { + this.__generatedMappings = []; + this.__originalMappings = []; + this._parseMappings(this._mappings, this.sourceRoot); + } + + return this.__originalMappings; + } + }); + + SourceMapConsumer.prototype._nextCharIsMappingSeparator = + function SourceMapConsumer_nextCharIsMappingSeparator(aStr) { + var c = aStr.charAt(0); + return c === ";" || c === ","; + }; + + /** + * Parse the mappings in a string in to a data structure which we can easily + * query (the ordered arrays in the `this.__generatedMappings` and + * `this.__originalMappings` properties). + */ + SourceMapConsumer.prototype._parseMappings = + function SourceMapConsumer_parseMappings(aStr, aSourceRoot) { + throw new Error("Subclasses must implement _parseMappings"); + }; + + SourceMapConsumer.GENERATED_ORDER = 1; + SourceMapConsumer.ORIGINAL_ORDER = 2; + + /** + * Iterate over each mapping between an original source/line/column and a + * generated line/column in this source map. + * + * @param Function aCallback + * The function that is called with each mapping. + * @param Object aContext + * Optional. If specified, this object will be the value of `this` every + * time that `aCallback` is called. + * @param aOrder + * Either `SourceMapConsumer.GENERATED_ORDER` or + * `SourceMapConsumer.ORIGINAL_ORDER`. Specifies whether you want to + * iterate over the mappings sorted by the generated file's line/column + * order or the original's source/line/column order, respectively. Defaults to + * `SourceMapConsumer.GENERATED_ORDER`. + */ + SourceMapConsumer.prototype.eachMapping = + function SourceMapConsumer_eachMapping(aCallback, aContext, aOrder) { + var context = aContext || null; + var order = aOrder || SourceMapConsumer.GENERATED_ORDER; + + var mappings; + switch (order) { + case SourceMapConsumer.GENERATED_ORDER: + mappings = this._generatedMappings; + break; + case SourceMapConsumer.ORIGINAL_ORDER: + mappings = this._originalMappings; + break; + default: + throw new Error("Unknown order of iteration."); + } + + var sourceRoot = this.sourceRoot; + mappings.map(function (mapping) { + var source = mapping.source; + if (source != null && sourceRoot != null) { + source = util.join(sourceRoot, source); + } + return { + source: source, + generatedLine: mapping.generatedLine, + generatedColumn: mapping.generatedColumn, + originalLine: mapping.originalLine, + originalColumn: mapping.originalColumn, + name: mapping.name + }; + }).forEach(aCallback, context); + }; + + /** + * Returns all generated line and column information for the original source + * and line provided. The only argument is an object with the following + * properties: + * + * - source: The filename of the original source. + * - line: The line number in the original source. + * + * and an array of objects is returned, each with the following properties: + * + * - line: The line number in the generated source, or null. + * - column: The column number in the generated source, or null. + */ + SourceMapConsumer.prototype.allGeneratedPositionsFor = + function SourceMapConsumer_allGeneratedPositionsFor(aArgs) { + // When there is no exact match, BasicSourceMapConsumer.prototype._findMapping + // returns the index of the closest mapping less than the needle. By + // setting needle.originalColumn to Infinity, we thus find the last + // mapping for the given line, provided such a mapping exists. + var needle = { + source: util.getArg(aArgs, 'source'), + originalLine: util.getArg(aArgs, 'line'), + originalColumn: Infinity + }; + + if (this.sourceRoot != null) { + needle.source = util.relative(this.sourceRoot, needle.source); + } + + var mappings = []; + + var index = this._findMapping(needle, + this._originalMappings, + "originalLine", + "originalColumn", + util.compareByOriginalPositions); + if (index >= 0) { + var mapping = this._originalMappings[index]; + + while (mapping && mapping.originalLine === needle.originalLine) { + mappings.push({ + line: util.getArg(mapping, 'generatedLine', null), + column: util.getArg(mapping, 'generatedColumn', null), + lastColumn: util.getArg(mapping, 'lastGeneratedColumn', null) + }); + + mapping = this._originalMappings[--index]; + } + } + + return mappings.reverse(); + }; + + exports.SourceMapConsumer = SourceMapConsumer; + +}); + +},{"./basic-source-map-consumer":55,"./indexed-source-map-consumer":57,"./util":62,"amdefine":1}],60:[function(require,module,exports){ +/* -*- Mode: js; js-indent-level: 2; -*- */ +/* + * Copyright 2011 Mozilla Foundation and contributors + * Licensed under the New BSD license. See LICENSE or: + * http://opensource.org/licenses/BSD-3-Clause + */ +if (typeof define !== 'function') { + var define = require('amdefine')(module, require); +} +define(function (require, exports, module) { + + var base64VLQ = require('./base64-vlq'); + var util = require('./util'); + var ArraySet = require('./array-set').ArraySet; + var MappingList = require('./mapping-list').MappingList; + + /** + * An instance of the SourceMapGenerator represents a source map which is + * being built incrementally. You may pass an object with the following + * properties: + * + * - file: The filename of the generated source. + * - sourceRoot: A root for all relative URLs in this source map. + */ + function SourceMapGenerator(aArgs) { + if (!aArgs) { + aArgs = {}; + } + this._file = util.getArg(aArgs, 'file', null); + this._sourceRoot = util.getArg(aArgs, 'sourceRoot', null); + this._skipValidation = util.getArg(aArgs, 'skipValidation', false); + this._sources = new ArraySet(); + this._names = new ArraySet(); + this._mappings = new MappingList(); + this._sourcesContents = null; + } + + SourceMapGenerator.prototype._version = 3; + + /** + * Creates a new SourceMapGenerator based on a SourceMapConsumer + * + * @param aSourceMapConsumer The SourceMap. + */ + SourceMapGenerator.fromSourceMap = + function SourceMapGenerator_fromSourceMap(aSourceMapConsumer) { + var sourceRoot = aSourceMapConsumer.sourceRoot; + var generator = new SourceMapGenerator({ + file: aSourceMapConsumer.file, + sourceRoot: sourceRoot + }); + aSourceMapConsumer.eachMapping(function (mapping) { + var newMapping = { + generated: { + line: mapping.generatedLine, + column: mapping.generatedColumn + } + }; + + if (mapping.source != null) { + newMapping.source = mapping.source; + if (sourceRoot != null) { + newMapping.source = util.relative(sourceRoot, newMapping.source); + } + + newMapping.original = { + line: mapping.originalLine, + column: mapping.originalColumn + }; + + if (mapping.name != null) { + newMapping.name = mapping.name; + } + } + + generator.addMapping(newMapping); + }); + aSourceMapConsumer.sources.forEach(function (sourceFile) { + var content = aSourceMapConsumer.sourceContentFor(sourceFile); + if (content != null) { + generator.setSourceContent(sourceFile, content); + } + }); + return generator; + }; + + /** + * Add a single mapping from original source line and column to the generated + * source's line and column for this source map being created. The mapping + * object should have the following properties: + * + * - generated: An object with the generated line and column positions. + * - original: An object with the original line and column positions. + * - source: The original source file (relative to the sourceRoot). + * - name: An optional original token name for this mapping. + */ + SourceMapGenerator.prototype.addMapping = + function SourceMapGenerator_addMapping(aArgs) { + var generated = util.getArg(aArgs, 'generated'); + var original = util.getArg(aArgs, 'original', null); + var source = util.getArg(aArgs, 'source', null); + var name = util.getArg(aArgs, 'name', null); + + if (!this._skipValidation) { + this._validateMapping(generated, original, source, name); + } + + if (source != null && !this._sources.has(source)) { + this._sources.add(source); + } + + if (name != null && !this._names.has(name)) { + this._names.add(name); + } + + this._mappings.add({ + generatedLine: generated.line, + generatedColumn: generated.column, + originalLine: original != null && original.line, + originalColumn: original != null && original.column, + source: source, + name: name + }); + }; + + /** + * Set the source content for a source file. + */ + SourceMapGenerator.prototype.setSourceContent = + function SourceMapGenerator_setSourceContent(aSourceFile, aSourceContent) { + var source = aSourceFile; + if (this._sourceRoot != null) { + source = util.relative(this._sourceRoot, source); + } + + if (aSourceContent != null) { + // Add the source content to the _sourcesContents map. + // Create a new _sourcesContents map if the property is null. + if (!this._sourcesContents) { + this._sourcesContents = {}; + } + this._sourcesContents[util.toSetString(source)] = aSourceContent; + } else if (this._sourcesContents) { + // Remove the source file from the _sourcesContents map. + // If the _sourcesContents map is empty, set the property to null. + delete this._sourcesContents[util.toSetString(source)]; + if (Object.keys(this._sourcesContents).length === 0) { + this._sourcesContents = null; + } + } + }; + + /** + * Applies the mappings of a sub-source-map for a specific source file to the + * source map being generated. Each mapping to the supplied source file is + * rewritten using the supplied source map. Note: The resolution for the + * resulting mappings is the minimium of this map and the supplied map. + * + * @param aSourceMapConsumer The source map to be applied. + * @param aSourceFile Optional. The filename of the source file. + * If omitted, SourceMapConsumer's file property will be used. + * @param aSourceMapPath Optional. The dirname of the path to the source map + * to be applied. If relative, it is relative to the SourceMapConsumer. + * This parameter is needed when the two source maps aren't in the same + * directory, and the source map to be applied contains relative source + * paths. If so, those relative source paths need to be rewritten + * relative to the SourceMapGenerator. + */ + SourceMapGenerator.prototype.applySourceMap = + function SourceMapGenerator_applySourceMap(aSourceMapConsumer, aSourceFile, aSourceMapPath) { + var sourceFile = aSourceFile; + // If aSourceFile is omitted, we will use the file property of the SourceMap + if (aSourceFile == null) { + if (aSourceMapConsumer.file == null) { + throw new Error( + 'SourceMapGenerator.prototype.applySourceMap requires either an explicit source file, ' + + 'or the source map\'s "file" property. Both were omitted.' + ); + } + sourceFile = aSourceMapConsumer.file; + } + var sourceRoot = this._sourceRoot; + // Make "sourceFile" relative if an absolute Url is passed. + if (sourceRoot != null) { + sourceFile = util.relative(sourceRoot, sourceFile); + } + // Applying the SourceMap can add and remove items from the sources and + // the names array. + var newSources = new ArraySet(); + var newNames = new ArraySet(); + + // Find mappings for the "sourceFile" + this._mappings.unsortedForEach(function (mapping) { + if (mapping.source === sourceFile && mapping.originalLine != null) { + // Check if it can be mapped by the source map, then update the mapping. + var original = aSourceMapConsumer.originalPositionFor({ + line: mapping.originalLine, + column: mapping.originalColumn + }); + if (original.source != null) { + // Copy mapping + mapping.source = original.source; + if (aSourceMapPath != null) { + mapping.source = util.join(aSourceMapPath, mapping.source) + } + if (sourceRoot != null) { + mapping.source = util.relative(sourceRoot, mapping.source); + } + mapping.originalLine = original.line; + mapping.originalColumn = original.column; + if (original.name != null) { + mapping.name = original.name; + } + } + } + + var source = mapping.source; + if (source != null && !newSources.has(source)) { + newSources.add(source); + } + + var name = mapping.name; + if (name != null && !newNames.has(name)) { + newNames.add(name); + } + + }, this); + this._sources = newSources; + this._names = newNames; + + // Copy sourcesContents of applied map. + aSourceMapConsumer.sources.forEach(function (sourceFile) { + var content = aSourceMapConsumer.sourceContentFor(sourceFile); + if (content != null) { + if (aSourceMapPath != null) { + sourceFile = util.join(aSourceMapPath, sourceFile); + } + if (sourceRoot != null) { + sourceFile = util.relative(sourceRoot, sourceFile); + } + this.setSourceContent(sourceFile, content); + } + }, this); + }; + + /** + * A mapping can have one of the three levels of data: + * + * 1. Just the generated position. + * 2. The Generated position, original position, and original source. + * 3. Generated and original position, original source, as well as a name + * token. + * + * To maintain consistency, we validate that any new mapping being added falls + * in to one of these categories. + */ + SourceMapGenerator.prototype._validateMapping = + function SourceMapGenerator_validateMapping(aGenerated, aOriginal, aSource, + aName) { + if (aGenerated && 'line' in aGenerated && 'column' in aGenerated + && aGenerated.line > 0 && aGenerated.column >= 0 + && !aOriginal && !aSource && !aName) { + // Case 1. + return; + } + else if (aGenerated && 'line' in aGenerated && 'column' in aGenerated + && aOriginal && 'line' in aOriginal && 'column' in aOriginal + && aGenerated.line > 0 && aGenerated.column >= 0 + && aOriginal.line > 0 && aOriginal.column >= 0 + && aSource) { + // Cases 2 and 3. + return; + } + else { + throw new Error('Invalid mapping: ' + JSON.stringify({ + generated: aGenerated, + source: aSource, + original: aOriginal, + name: aName + })); + } + }; + + /** + * Serialize the accumulated mappings in to the stream of base 64 VLQs + * specified by the source map format. + */ + SourceMapGenerator.prototype._serializeMappings = + function SourceMapGenerator_serializeMappings() { + var previousGeneratedColumn = 0; + var previousGeneratedLine = 1; + var previousOriginalColumn = 0; + var previousOriginalLine = 0; + var previousName = 0; + var previousSource = 0; + var result = ''; + var mapping; + + var mappings = this._mappings.toArray(); + + for (var i = 0, len = mappings.length; i < len; i++) { + mapping = mappings[i]; + + if (mapping.generatedLine !== previousGeneratedLine) { + previousGeneratedColumn = 0; + while (mapping.generatedLine !== previousGeneratedLine) { + result += ';'; + previousGeneratedLine++; + } + } + else { + if (i > 0) { + if (!util.compareByGeneratedPositions(mapping, mappings[i - 1])) { + continue; + } + result += ','; + } + } + + result += base64VLQ.encode(mapping.generatedColumn + - previousGeneratedColumn); + previousGeneratedColumn = mapping.generatedColumn; + + if (mapping.source != null) { + result += base64VLQ.encode(this._sources.indexOf(mapping.source) + - previousSource); + previousSource = this._sources.indexOf(mapping.source); + + // lines are stored 0-based in SourceMap spec version 3 + result += base64VLQ.encode(mapping.originalLine - 1 + - previousOriginalLine); + previousOriginalLine = mapping.originalLine - 1; + + result += base64VLQ.encode(mapping.originalColumn + - previousOriginalColumn); + previousOriginalColumn = mapping.originalColumn; + + if (mapping.name != null) { + result += base64VLQ.encode(this._names.indexOf(mapping.name) + - previousName); + previousName = this._names.indexOf(mapping.name); + } + } + } + + return result; + }; + + SourceMapGenerator.prototype._generateSourcesContent = + function SourceMapGenerator_generateSourcesContent(aSources, aSourceRoot) { + return aSources.map(function (source) { + if (!this._sourcesContents) { + return null; + } + if (aSourceRoot != null) { + source = util.relative(aSourceRoot, source); + } + var key = util.toSetString(source); + return Object.prototype.hasOwnProperty.call(this._sourcesContents, + key) + ? this._sourcesContents[key] + : null; + }, this); + }; + + /** + * Externalize the source map. + */ + SourceMapGenerator.prototype.toJSON = + function SourceMapGenerator_toJSON() { + var map = { + version: this._version, + sources: this._sources.toArray(), + names: this._names.toArray(), + mappings: this._serializeMappings() + }; + if (this._file != null) { + map.file = this._file; + } + if (this._sourceRoot != null) { + map.sourceRoot = this._sourceRoot; + } + if (this._sourcesContents) { + map.sourcesContent = this._generateSourcesContent(map.sources, map.sourceRoot); + } + + return map; + }; + + /** + * Render the source map being generated to a string. + */ + SourceMapGenerator.prototype.toString = + function SourceMapGenerator_toString() { + return JSON.stringify(this); + }; + + exports.SourceMapGenerator = SourceMapGenerator; + +}); + +},{"./array-set":52,"./base64-vlq":53,"./mapping-list":58,"./util":62,"amdefine":1}],61:[function(require,module,exports){ +/* -*- Mode: js; js-indent-level: 2; -*- */ +/* + * Copyright 2011 Mozilla Foundation and contributors + * Licensed under the New BSD license. See LICENSE or: + * http://opensource.org/licenses/BSD-3-Clause + */ +if (typeof define !== 'function') { + var define = require('amdefine')(module, require); +} +define(function (require, exports, module) { + + var SourceMapGenerator = require('./source-map-generator').SourceMapGenerator; + var util = require('./util'); + + // Matches a Windows-style `\r\n` newline or a `\n` newline used by all other + // operating systems these days (capturing the result). + var REGEX_NEWLINE = /(\r?\n)/; + + // Newline character code for charCodeAt() comparisons + var NEWLINE_CODE = 10; + + // Private symbol for identifying `SourceNode`s when multiple versions of + // the source-map library are loaded. This MUST NOT CHANGE across + // versions! + var isSourceNode = "$$$isSourceNode$$$"; + + /** + * SourceNodes provide a way to abstract over interpolating/concatenating + * snippets of generated JavaScript source code while maintaining the line and + * column information associated with the original source code. + * + * @param aLine The original line number. + * @param aColumn The original column number. + * @param aSource The original source's filename. + * @param aChunks Optional. An array of strings which are snippets of + * generated JS, or other SourceNodes. + * @param aName The original identifier. + */ + function SourceNode(aLine, aColumn, aSource, aChunks, aName) { + this.children = []; + this.sourceContents = {}; + this.line = aLine == null ? null : aLine; + this.column = aColumn == null ? null : aColumn; + this.source = aSource == null ? null : aSource; + this.name = aName == null ? null : aName; + this[isSourceNode] = true; + if (aChunks != null) this.add(aChunks); + } + + /** + * Creates a SourceNode from generated code and a SourceMapConsumer. + * + * @param aGeneratedCode The generated code + * @param aSourceMapConsumer The SourceMap for the generated code + * @param aRelativePath Optional. The path that relative sources in the + * SourceMapConsumer should be relative to. + */ + SourceNode.fromStringWithSourceMap = + function SourceNode_fromStringWithSourceMap(aGeneratedCode, aSourceMapConsumer, aRelativePath) { + // The SourceNode we want to fill with the generated code + // and the SourceMap + var node = new SourceNode(); + + // All even indices of this array are one line of the generated code, + // while all odd indices are the newlines between two adjacent lines + // (since `REGEX_NEWLINE` captures its match). + // Processed fragments are removed from this array, by calling `shiftNextLine`. + var remainingLines = aGeneratedCode.split(REGEX_NEWLINE); + var shiftNextLine = function() { + var lineContents = remainingLines.shift(); + // The last line of a file might not have a newline. + var newLine = remainingLines.shift() || ""; + return lineContents + newLine; + }; + + // We need to remember the position of "remainingLines" + var lastGeneratedLine = 1, lastGeneratedColumn = 0; + + // The generate SourceNodes we need a code range. + // To extract it current and last mapping is used. + // Here we store the last mapping. + var lastMapping = null; + + aSourceMapConsumer.eachMapping(function (mapping) { + if (lastMapping !== null) { + // We add the code from "lastMapping" to "mapping": + // First check if there is a new line in between. + if (lastGeneratedLine < mapping.generatedLine) { + var code = ""; + // Associate first line with "lastMapping" + addMappingWithCode(lastMapping, shiftNextLine()); + lastGeneratedLine++; + lastGeneratedColumn = 0; + // The remaining code is added without mapping + } else { + // There is no new line in between. + // Associate the code between "lastGeneratedColumn" and + // "mapping.generatedColumn" with "lastMapping" + var nextLine = remainingLines[0]; + var code = nextLine.substr(0, mapping.generatedColumn - + lastGeneratedColumn); + remainingLines[0] = nextLine.substr(mapping.generatedColumn - + lastGeneratedColumn); + lastGeneratedColumn = mapping.generatedColumn; + addMappingWithCode(lastMapping, code); + // No more remaining code, continue + lastMapping = mapping; + return; + } + } + // We add the generated code until the first mapping + // to the SourceNode without any mapping. + // Each line is added as separate string. + while (lastGeneratedLine < mapping.generatedLine) { + node.add(shiftNextLine()); + lastGeneratedLine++; + } + if (lastGeneratedColumn < mapping.generatedColumn) { + var nextLine = remainingLines[0]; + node.add(nextLine.substr(0, mapping.generatedColumn)); + remainingLines[0] = nextLine.substr(mapping.generatedColumn); + lastGeneratedColumn = mapping.generatedColumn; + } + lastMapping = mapping; + }, this); + // We have processed all mappings. + if (remainingLines.length > 0) { + if (lastMapping) { + // Associate the remaining code in the current line with "lastMapping" + addMappingWithCode(lastMapping, shiftNextLine()); + } + // and add the remaining lines without any mapping + node.add(remainingLines.join("")); + } + + // Copy sourcesContent into SourceNode + aSourceMapConsumer.sources.forEach(function (sourceFile) { + var content = aSourceMapConsumer.sourceContentFor(sourceFile); + if (content != null) { + if (aRelativePath != null) { + sourceFile = util.join(aRelativePath, sourceFile); + } + node.setSourceContent(sourceFile, content); + } + }); + + return node; + + function addMappingWithCode(mapping, code) { + if (mapping === null || mapping.source === undefined) { + node.add(code); + } else { + var source = aRelativePath + ? util.join(aRelativePath, mapping.source) + : mapping.source; + node.add(new SourceNode(mapping.originalLine, + mapping.originalColumn, + source, + code, + mapping.name)); + } + } + }; + + /** + * Add a chunk of generated JS to this source node. + * + * @param aChunk A string snippet of generated JS code, another instance of + * SourceNode, or an array where each member is one of those things. + */ + SourceNode.prototype.add = function SourceNode_add(aChunk) { + if (Array.isArray(aChunk)) { + aChunk.forEach(function (chunk) { + this.add(chunk); + }, this); + } + else if (aChunk[isSourceNode] || typeof aChunk === "string") { + if (aChunk) { + this.children.push(aChunk); + } + } + else { + throw new TypeError( + "Expected a SourceNode, string, or an array of SourceNodes and strings. Got " + aChunk + ); + } + return this; + }; + + /** + * Add a chunk of generated JS to the beginning of this source node. + * + * @param aChunk A string snippet of generated JS code, another instance of + * SourceNode, or an array where each member is one of those things. + */ + SourceNode.prototype.prepend = function SourceNode_prepend(aChunk) { + if (Array.isArray(aChunk)) { + for (var i = aChunk.length-1; i >= 0; i--) { + this.prepend(aChunk[i]); + } + } + else if (aChunk[isSourceNode] || typeof aChunk === "string") { + this.children.unshift(aChunk); + } + else { + throw new TypeError( + "Expected a SourceNode, string, or an array of SourceNodes and strings. Got " + aChunk + ); + } + return this; + }; + + /** + * Walk over the tree of JS snippets in this node and its children. The + * walking function is called once for each snippet of JS and is passed that + * snippet and the its original associated source's line/column location. + * + * @param aFn The traversal function. + */ + SourceNode.prototype.walk = function SourceNode_walk(aFn) { + var chunk; + for (var i = 0, len = this.children.length; i < len; i++) { + chunk = this.children[i]; + if (chunk[isSourceNode]) { + chunk.walk(aFn); + } + else { + if (chunk !== '') { + aFn(chunk, { source: this.source, + line: this.line, + column: this.column, + name: this.name }); + } + } + } + }; + + /** + * Like `String.prototype.join` except for SourceNodes. Inserts `aStr` between + * each of `this.children`. + * + * @param aSep The separator. + */ + SourceNode.prototype.join = function SourceNode_join(aSep) { + var newChildren; + var i; + var len = this.children.length; + if (len > 0) { + newChildren = []; + for (i = 0; i < len-1; i++) { + newChildren.push(this.children[i]); + newChildren.push(aSep); + } + newChildren.push(this.children[i]); + this.children = newChildren; + } + return this; + }; + + /** + * Call String.prototype.replace on the very right-most source snippet. Useful + * for trimming whitespace from the end of a source node, etc. + * + * @param aPattern The pattern to replace. + * @param aReplacement The thing to replace the pattern with. + */ + SourceNode.prototype.replaceRight = function SourceNode_replaceRight(aPattern, aReplacement) { + var lastChild = this.children[this.children.length - 1]; + if (lastChild[isSourceNode]) { + lastChild.replaceRight(aPattern, aReplacement); + } + else if (typeof lastChild === 'string') { + this.children[this.children.length - 1] = lastChild.replace(aPattern, aReplacement); + } + else { + this.children.push(''.replace(aPattern, aReplacement)); + } + return this; + }; + + /** + * Set the source content for a source file. This will be added to the SourceMapGenerator + * in the sourcesContent field. + * + * @param aSourceFile The filename of the source file + * @param aSourceContent The content of the source file + */ + SourceNode.prototype.setSourceContent = + function SourceNode_setSourceContent(aSourceFile, aSourceContent) { + this.sourceContents[util.toSetString(aSourceFile)] = aSourceContent; + }; + + /** + * Walk over the tree of SourceNodes. The walking function is called for each + * source file content and is passed the filename and source content. + * + * @param aFn The traversal function. + */ + SourceNode.prototype.walkSourceContents = + function SourceNode_walkSourceContents(aFn) { + for (var i = 0, len = this.children.length; i < len; i++) { + if (this.children[i][isSourceNode]) { + this.children[i].walkSourceContents(aFn); + } + } + + var sources = Object.keys(this.sourceContents); + for (var i = 0, len = sources.length; i < len; i++) { + aFn(util.fromSetString(sources[i]), this.sourceContents[sources[i]]); + } + }; + + /** + * Return the string representation of this source node. Walks over the tree + * and concatenates all the various snippets together to one string. + */ + SourceNode.prototype.toString = function SourceNode_toString() { + var str = ""; + this.walk(function (chunk) { + str += chunk; + }); + return str; + }; + + /** + * Returns the string representation of this source node along with a source + * map. + */ + SourceNode.prototype.toStringWithSourceMap = function SourceNode_toStringWithSourceMap(aArgs) { + var generated = { + code: "", + line: 1, + column: 0 + }; + var map = new SourceMapGenerator(aArgs); + var sourceMappingActive = false; + var lastOriginalSource = null; + var lastOriginalLine = null; + var lastOriginalColumn = null; + var lastOriginalName = null; + this.walk(function (chunk, original) { + generated.code += chunk; + if (original.source !== null + && original.line !== null + && original.column !== null) { + if(lastOriginalSource !== original.source + || lastOriginalLine !== original.line + || lastOriginalColumn !== original.column + || lastOriginalName !== original.name) { + map.addMapping({ + source: original.source, + original: { + line: original.line, + column: original.column + }, + generated: { + line: generated.line, + column: generated.column + }, + name: original.name + }); + } + lastOriginalSource = original.source; + lastOriginalLine = original.line; + lastOriginalColumn = original.column; + lastOriginalName = original.name; + sourceMappingActive = true; + } else if (sourceMappingActive) { + map.addMapping({ + generated: { + line: generated.line, + column: generated.column + } + }); + lastOriginalSource = null; + sourceMappingActive = false; + } + for (var idx = 0, length = chunk.length; idx < length; idx++) { + if (chunk.charCodeAt(idx) === NEWLINE_CODE) { + generated.line++; + generated.column = 0; + // Mappings end at eol + if (idx + 1 === length) { + lastOriginalSource = null; + sourceMappingActive = false; + } else if (sourceMappingActive) { + map.addMapping({ + source: original.source, + original: { + line: original.line, + column: original.column + }, + generated: { + line: generated.line, + column: generated.column + }, + name: original.name + }); + } + } else { + generated.column++; + } + } + }); + this.walkSourceContents(function (sourceFile, sourceContent) { + map.setSourceContent(sourceFile, sourceContent); + }); + + return { code: generated.code, map: map }; + }; + + exports.SourceNode = SourceNode; + +}); + +},{"./source-map-generator":60,"./util":62,"amdefine":1}],62:[function(require,module,exports){ +/* -*- Mode: js; js-indent-level: 2; -*- */ +/* + * Copyright 2011 Mozilla Foundation and contributors + * Licensed under the New BSD license. See LICENSE or: + * http://opensource.org/licenses/BSD-3-Clause + */ +if (typeof define !== 'function') { + var define = require('amdefine')(module, require); +} +define(function (require, exports, module) { + + /** + * This is a helper function for getting values from parameter/options + * objects. + * + * @param args The object we are extracting values from + * @param name The name of the property we are getting. + * @param defaultValue An optional value to return if the property is missing + * from the object. If this is not specified and the property is missing, an + * error will be thrown. + */ + function getArg(aArgs, aName, aDefaultValue) { + if (aName in aArgs) { + return aArgs[aName]; + } else if (arguments.length === 3) { + return aDefaultValue; + } else { + throw new Error('"' + aName + '" is a required argument.'); + } + } + exports.getArg = getArg; + + var urlRegexp = /^(?:([\w+\-.]+):)?\/\/(?:(\w+:\w+)@)?([\w.]*)(?::(\d+))?(\S*)$/; + var dataUrlRegexp = /^data:.+\,.+$/; + + function urlParse(aUrl) { + var match = aUrl.match(urlRegexp); + if (!match) { + return null; + } + return { + scheme: match[1], + auth: match[2], + host: match[3], + port: match[4], + path: match[5] + }; + } + exports.urlParse = urlParse; + + function urlGenerate(aParsedUrl) { + var url = ''; + if (aParsedUrl.scheme) { + url += aParsedUrl.scheme + ':'; + } + url += '//'; + if (aParsedUrl.auth) { + url += aParsedUrl.auth + '@'; + } + if (aParsedUrl.host) { + url += aParsedUrl.host; + } + if (aParsedUrl.port) { + url += ":" + aParsedUrl.port + } + if (aParsedUrl.path) { + url += aParsedUrl.path; + } + return url; + } + exports.urlGenerate = urlGenerate; + + /** + * Normalizes a path, or the path portion of a URL: + * + * - Replaces consequtive slashes with one slash. + * - Removes unnecessary '.' parts. + * - Removes unnecessary '/..' parts. + * + * Based on code in the Node.js 'path' core module. + * + * @param aPath The path or url to normalize. + */ + function normalize(aPath) { + var path = aPath; + var url = urlParse(aPath); + if (url) { + if (!url.path) { + return aPath; + } + path = url.path; + } + var isAbsolute = (path.charAt(0) === '/'); + + var parts = path.split(/\/+/); + for (var part, up = 0, i = parts.length - 1; i >= 0; i--) { + part = parts[i]; + if (part === '.') { + parts.splice(i, 1); + } else if (part === '..') { + up++; + } else if (up > 0) { + if (part === '') { + // The first part is blank if the path is absolute. Trying to go + // above the root is a no-op. Therefore we can remove all '..' parts + // directly after the root. + parts.splice(i + 1, up); + up = 0; + } else { + parts.splice(i, 2); + up--; + } + } + } + path = parts.join('/'); + + if (path === '') { + path = isAbsolute ? '/' : '.'; + } + + if (url) { + url.path = path; + return urlGenerate(url); + } + return path; + } + exports.normalize = normalize; + + /** + * Joins two paths/URLs. + * + * @param aRoot The root path or URL. + * @param aPath The path or URL to be joined with the root. + * + * - If aPath is a URL or a data URI, aPath is returned, unless aPath is a + * scheme-relative URL: Then the scheme of aRoot, if any, is prepended + * first. + * - Otherwise aPath is a path. If aRoot is a URL, then its path portion + * is updated with the result and aRoot is returned. Otherwise the result + * is returned. + * - If aPath is absolute, the result is aPath. + * - Otherwise the two paths are joined with a slash. + * - Joining for example 'http://' and 'www.example.com' is also supported. + */ + function join(aRoot, aPath) { + if (aRoot === "") { + aRoot = "."; + } + if (aPath === "") { + aPath = "."; + } + var aPathUrl = urlParse(aPath); + var aRootUrl = urlParse(aRoot); + if (aRootUrl) { + aRoot = aRootUrl.path || '/'; + } + + // `join(foo, '//www.example.org')` + if (aPathUrl && !aPathUrl.scheme) { + if (aRootUrl) { + aPathUrl.scheme = aRootUrl.scheme; + } + return urlGenerate(aPathUrl); + } + + if (aPathUrl || aPath.match(dataUrlRegexp)) { + return aPath; + } + + // `join('http://', 'www.example.com')` + if (aRootUrl && !aRootUrl.host && !aRootUrl.path) { + aRootUrl.host = aPath; + return urlGenerate(aRootUrl); + } + + var joined = aPath.charAt(0) === '/' + ? aPath + : normalize(aRoot.replace(/\/+$/, '') + '/' + aPath); + + if (aRootUrl) { + aRootUrl.path = joined; + return urlGenerate(aRootUrl); + } + return joined; + } + exports.join = join; + + /** + * Make a path relative to a URL or another path. + * + * @param aRoot The root path or URL. + * @param aPath The path or URL to be made relative to aRoot. + */ + function relative(aRoot, aPath) { + if (aRoot === "") { + aRoot = "."; + } + + aRoot = aRoot.replace(/\/$/, ''); + + // XXX: It is possible to remove this block, and the tests still pass! + var url = urlParse(aRoot); + if (aPath.charAt(0) == "/" && url && url.path == "/") { + return aPath.slice(1); + } + + return aPath.indexOf(aRoot + '/') === 0 + ? aPath.substr(aRoot.length + 1) + : aPath; + } + exports.relative = relative; + + /** + * Because behavior goes wacky when you set `__proto__` on objects, we + * have to prefix all the strings in our set with an arbitrary character. + * + * See https://github.com/mozilla/source-map/pull/31 and + * https://github.com/mozilla/source-map/issues/30 + * + * @param String aStr + */ + function toSetString(aStr) { + return '$' + aStr; + } + exports.toSetString = toSetString; + + function fromSetString(aStr) { + return aStr.substr(1); + } + exports.fromSetString = fromSetString; + + function strcmp(aStr1, aStr2) { + var s1 = aStr1 || ""; + var s2 = aStr2 || ""; + return (s1 > s2) - (s1 < s2); + } + + /** + * Comparator between two mappings where the original positions are compared. + * + * Optionally pass in `true` as `onlyCompareGenerated` to consider two + * mappings with the same original source/line/column, but different generated + * line and column the same. Useful when searching for a mapping with a + * stubbed out mapping. + */ + function compareByOriginalPositions(mappingA, mappingB, onlyCompareOriginal) { + var cmp; + + cmp = strcmp(mappingA.source, mappingB.source); + if (cmp) { + return cmp; + } + + cmp = mappingA.originalLine - mappingB.originalLine; + if (cmp) { + return cmp; + } + + cmp = mappingA.originalColumn - mappingB.originalColumn; + if (cmp || onlyCompareOriginal) { + return cmp; + } + + cmp = strcmp(mappingA.name, mappingB.name); + if (cmp) { + return cmp; + } + + cmp = mappingA.generatedLine - mappingB.generatedLine; + if (cmp) { + return cmp; + } + + return mappingA.generatedColumn - mappingB.generatedColumn; + }; + exports.compareByOriginalPositions = compareByOriginalPositions; + + /** + * Comparator between two mappings where the generated positions are + * compared. + * + * Optionally pass in `true` as `onlyCompareGenerated` to consider two + * mappings with the same generated line and column, but different + * source/name/original line and column the same. Useful when searching for a + * mapping with a stubbed out mapping. + */ + function compareByGeneratedPositions(mappingA, mappingB, onlyCompareGenerated) { + var cmp; + + cmp = mappingA.generatedLine - mappingB.generatedLine; + if (cmp) { + return cmp; + } + + cmp = mappingA.generatedColumn - mappingB.generatedColumn; + if (cmp || onlyCompareGenerated) { + return cmp; + } + + cmp = strcmp(mappingA.source, mappingB.source); + if (cmp) { + return cmp; + } + + cmp = mappingA.originalLine - mappingB.originalLine; + if (cmp) { + return cmp; + } + + cmp = mappingA.originalColumn - mappingB.originalColumn; + if (cmp) { + return cmp; + } + + return strcmp(mappingA.name, mappingB.name); + }; + exports.compareByGeneratedPositions = compareByGeneratedPositions; + +}); + +},{"amdefine":1}],63:[function(require,module,exports){ +(function (process){ +// 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. + +// resolves . and .. elements in a path array with directory names there +// must be no slashes, empty elements, or device names (c:\) in the array +// (so also no leading and trailing slashes - it does not distinguish +// relative and absolute paths) +function normalizeArray(parts, allowAboveRoot) { + // if the path tries to go above the root, `up` ends up > 0 + var up = 0; + for (var i = parts.length - 1; i >= 0; i--) { + var last = parts[i]; + if (last === '.') { + parts.splice(i, 1); + } else if (last === '..') { + parts.splice(i, 1); + up++; + } else if (up) { + parts.splice(i, 1); + up--; + } + } + + // if the path is allowed to go above the root, restore leading ..s + if (allowAboveRoot) { + for (; up--; up) { + parts.unshift('..'); + } + } + + return parts; +} + +// Split a filename into [root, dir, basename, ext], unix version +// 'root' is just a slash, or nothing. +var splitPathRe = + /^(\/?|)([\s\S]*?)((?:\.{1,2}|[^\/]+?|)(\.[^.\/]*|))(?:[\/]*)$/; +var splitPath = function(filename) { + return splitPathRe.exec(filename).slice(1); +}; + +// path.resolve([from ...], to) +// posix version +exports.resolve = function() { + var resolvedPath = '', + resolvedAbsolute = false; + + for (var i = arguments.length - 1; i >= -1 && !resolvedAbsolute; i--) { + var path = (i >= 0) ? arguments[i] : process.cwd(); + + // Skip empty and invalid entries + if (typeof path !== 'string') { + throw new TypeError('Arguments to path.resolve must be strings'); + } else if (!path) { + continue; + } + + resolvedPath = path + '/' + resolvedPath; + resolvedAbsolute = path.charAt(0) === '/'; + } + + // At this point the path should be resolved to a full absolute path, but + // handle relative paths to be safe (might happen when process.cwd() fails) + + // Normalize the path + resolvedPath = normalizeArray(filter(resolvedPath.split('/'), function(p) { + return !!p; + }), !resolvedAbsolute).join('/'); + + return ((resolvedAbsolute ? '/' : '') + resolvedPath) || '.'; +}; + +// path.normalize(path) +// posix version +exports.normalize = function(path) { + var isAbsolute = exports.isAbsolute(path), + trailingSlash = substr(path, -1) === '/'; + + // Normalize the path + path = normalizeArray(filter(path.split('/'), function(p) { + return !!p; + }), !isAbsolute).join('/'); + + if (!path && !isAbsolute) { + path = '.'; + } + if (path && trailingSlash) { + path += '/'; + } + + return (isAbsolute ? '/' : '') + path; +}; + +// posix version +exports.isAbsolute = function(path) { + return path.charAt(0) === '/'; +}; + +// posix version +exports.join = function() { + var paths = Array.prototype.slice.call(arguments, 0); + return exports.normalize(filter(paths, function(p, index) { + if (typeof p !== 'string') { + throw new TypeError('Arguments to path.join must be strings'); + } + return p; + }).join('/')); +}; + + +// path.relative(from, to) +// posix version +exports.relative = function(from, to) { + from = exports.resolve(from).substr(1); + to = exports.resolve(to).substr(1); + + function trim(arr) { + var start = 0; + for (; start < arr.length; start++) { + if (arr[start] !== '') break; + } + + var end = arr.length - 1; + for (; end >= 0; end--) { + if (arr[end] !== '') break; + } + + if (start > end) return []; + return arr.slice(start, end - start + 1); + } + + var fromParts = trim(from.split('/')); + var toParts = trim(to.split('/')); + + var length = Math.min(fromParts.length, toParts.length); + var samePartsLength = length; + for (var i = 0; i < length; i++) { + if (fromParts[i] !== toParts[i]) { + samePartsLength = i; + break; + } + } + + var outputParts = []; + for (var i = samePartsLength; i < fromParts.length; i++) { + outputParts.push('..'); + } + + outputParts = outputParts.concat(toParts.slice(samePartsLength)); + + return outputParts.join('/'); +}; + +exports.sep = '/'; +exports.delimiter = ':'; + +exports.dirname = function(path) { + var result = splitPath(path), + root = result[0], + dir = result[1]; + + if (!root && !dir) { + // No dirname whatsoever + return '.'; + } + + if (dir) { + // It has a dirname, strip trailing slash + dir = dir.substr(0, dir.length - 1); + } + + return root + dir; +}; + + +exports.basename = function(path, ext) { + var f = splitPath(path)[2]; + // TODO: make this comparison case-insensitive on windows? + if (ext && f.substr(-1 * ext.length) === ext) { + f = f.substr(0, f.length - ext.length); + } + return f; +}; + + +exports.extname = function(path) { + return splitPath(path)[3]; +}; + +function filter (xs, f) { + if (xs.filter) return xs.filter(f); + var res = []; + for (var i = 0; i < xs.length; i++) { + if (f(xs[i], i, xs)) res.push(xs[i]); + } + return res; +} + +// String.prototype.substr - negative index don't work in IE8 +var substr = 'ab'.substr(-1) === 'b' + ? function (str, start, len) { return str.substr(start, len) } + : function (str, start, len) { + if (start < 0) start = str.length + start; + return str.substr(start, len); + } +; + +}).call(this,require('_process')) +},{"_process":64}],64:[function(require,module,exports){ +// shim for using process in browser +var process = module.exports = {}; + +// cached from whatever global is present so that test runners that stub it +// don't break things. But we need to wrap it in a try catch in case it is +// wrapped in strict mode code which doesn't define any globals. It's inside a +// function because try/catches deoptimize in certain engines. + +var cachedSetTimeout; +var cachedClearTimeout; + +function defaultSetTimout() { + throw new Error('setTimeout has not been defined'); +} +function defaultClearTimeout () { + throw new Error('clearTimeout has not been defined'); +} +(function () { + try { + if (typeof setTimeout === 'function') { + cachedSetTimeout = setTimeout; + } else { + cachedSetTimeout = defaultSetTimout; + } + } catch (e) { + cachedSetTimeout = defaultSetTimout; + } + try { + if (typeof clearTimeout === 'function') { + cachedClearTimeout = clearTimeout; + } else { + cachedClearTimeout = defaultClearTimeout; + } + } catch (e) { + cachedClearTimeout = defaultClearTimeout; + } +} ()) +function runTimeout(fun) { + if (cachedSetTimeout === setTimeout) { + //normal enviroments in sane situations + return setTimeout(fun, 0); + } + // if setTimeout wasn't available but was latter defined + if ((cachedSetTimeout === defaultSetTimout || !cachedSetTimeout) && setTimeout) { + cachedSetTimeout = setTimeout; + return setTimeout(fun, 0); + } + try { + // when when somebody has screwed with setTimeout but no I.E. maddness + return cachedSetTimeout(fun, 0); + } catch(e){ + try { + // When we are in I.E. but the script has been evaled so I.E. doesn't trust the global object when called normally + return cachedSetTimeout.call(null, fun, 0); + } catch(e){ + // same as above but when it's a version of I.E. that must have the global object for 'this', hopfully our context correct otherwise it will throw a global error + return cachedSetTimeout.call(this, fun, 0); + } + } + + +} +function runClearTimeout(marker) { + if (cachedClearTimeout === clearTimeout) { + //normal enviroments in sane situations + return clearTimeout(marker); + } + // if clearTimeout wasn't available but was latter defined + if ((cachedClearTimeout === defaultClearTimeout || !cachedClearTimeout) && clearTimeout) { + cachedClearTimeout = clearTimeout; + return clearTimeout(marker); + } + try { + // when when somebody has screwed with setTimeout but no I.E. maddness + return cachedClearTimeout(marker); + } catch (e){ + try { + // When we are in I.E. but the script has been evaled so I.E. doesn't trust the global object when called normally + return cachedClearTimeout.call(null, marker); + } catch (e){ + // same as above but when it's a version of I.E. that must have the global object for 'this', hopfully our context correct otherwise it will throw a global error. + // Some versions of I.E. have different rules for clearTimeout vs setTimeout + return cachedClearTimeout.call(this, marker); + } + } + + + +} +var queue = []; +var draining = false; +var currentQueue; +var queueIndex = -1; + +function cleanUpNextTick() { + if (!draining || !currentQueue) { + return; + } + draining = false; + if (currentQueue.length) { + queue = currentQueue.concat(queue); + } else { + queueIndex = -1; + } + if (queue.length) { + drainQueue(); + } +} + +function drainQueue() { + if (draining) { + return; + } + var timeout = runTimeout(cleanUpNextTick); + draining = true; + + var len = queue.length; + while(len) { + currentQueue = queue; + queue = []; + while (++queueIndex < len) { + if (currentQueue) { + currentQueue[queueIndex].run(); + } + } + queueIndex = -1; + len = queue.length; + } + currentQueue = null; + draining = false; + runClearTimeout(timeout); +} + +process.nextTick = function (fun) { + var args = new Array(arguments.length - 1); + if (arguments.length > 1) { + for (var i = 1; i < arguments.length; i++) { + args[i - 1] = arguments[i]; + } + } + queue.push(new Item(fun, args)); + if (queue.length === 1 && !draining) { + runTimeout(drainQueue); + } +}; + +// v8 likes predictible objects +function Item(fun, array) { + this.fun = fun; + this.array = array; +} +Item.prototype.run = function () { + this.fun.apply(null, this.array); +}; +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'); +}; + +process.cwd = function () { return '/' }; +process.chdir = function (dir) { + throw new Error('process.chdir is not supported'); +}; +process.umask = function() { return 0; }; + +},{}]},{},[50])(50) +});