diff --git a/.eslintignore b/.eslintignore index 4261437..7d72626 100644 --- a/.eslintignore +++ b/.eslintignore @@ -2,4 +2,5 @@ node_modules/ add-on/lib/third_party/ add-on/lib/standards.js add-on/config/js/third_party/ +add-on/config/js/vue_compiled_templates test.config.js \ No newline at end of file diff --git a/.gitignore b/.gitignore index f599d7e..b606baf 100644 --- a/.gitignore +++ b/.gitignore @@ -3,3 +3,8 @@ node_modules/ *.swp test.config.js dist/ +add-on/lib/standards.js +add-on/lib/third_party/sjcl.js +add-on/lib/third_party/uri.all.min.js +add-on/config/js/third_party/vue.runtime.min.js +add-on/config/js/vue_compiled_templates/ diff --git a/add-on/config/index.html b/add-on/config/index.html index eaad2db..f24ec6f 100644 --- a/add-on/config/index.html +++ b/add-on/config/index.html @@ -10,70 +10,22 @@ -
- - -
-
-
-
-

- Enter domain matching rules - on the right, to create a new blocking rule. On the - right, select which functionality should be blocked for - hosts matching each rule. -

-
-
-
-
- - - -
- -
- - -
-
-
- -
-
-
- - -
-
-
-
-
+
- + - - - - - + + + + + + + + + + diff --git a/add-on/config/js/components/logging-settings.vue.js b/add-on/config/js/components/logging-settings.vue.js deleted file mode 100644 index f7d49bf..0000000 --- a/add-on/config/js/components/logging-settings.vue.js +++ /dev/null @@ -1,32 +0,0 @@ -(function () { - "use strict"; - - const Vue = window.Vue; - - Vue.component("logging-settings", { - props: ["shouldLog"], - template: ` -
-
- -
-
- `, - methods: { - shouldLogChanged: function () { - this.$root.$data.setShouldLog(this.shouldLog); - } - } - }); -}()); diff --git a/add-on/config/js/components/web-api-standards.vue.js b/add-on/config/js/components/web-api-standards.vue.js deleted file mode 100644 index e29b865..0000000 --- a/add-on/config/js/components/web-api-standards.vue.js +++ /dev/null @@ -1,88 +0,0 @@ -(function () { - "use strict"; - - const standardsDefaults = window.WEB_API_MANAGER.defaults; - const Vue = window.Vue; - - Vue.component("web-api-standards", { - props: ["standards", "selectedStandards", "selectedDomain"], - template: ` -
-

Pattern: {{ selectedDomain }}

- -
-
- Default configurations -
- -
- - - - - -
- -
- Lite is designed to have a minimal - impact on typical browsing while still providing - security and privacy improvements. - Conservative and Aggressive - provide extra protections, though will impact the - functionaltiy more sites. -
-
- -
-
Blocked standards
- - -
-
- `, - methods: { - onStandardChecked: function () { - this.$root.$data.setSelectedStandards(this.selectedStandards); - }, - onLiteClicked: function () { - this.$root.$data.setSelectedStandards(standardsDefaults.lite); - }, - onConservativeClicked: function () { - this.$root.$data.setSelectedStandards(standardsDefaults.conservative); - }, - onAggressiveClicked: function () { - this.$root.$data.setSelectedStandards(standardsDefaults.aggressive); - }, - onClearClicked: function () { - this.$root.$data.setSelectedStandards([]); - }, - onAllClicked: function () { - const allStandards = Object.keys(this.standards) - .map(aStdName => this.standards[aStdName].info.identifier); - this.$root.$data.setSelectedStandards(allStandards); - } - } - }); -}()); diff --git a/add-on/config/js/third_party/vue.js b/add-on/config/js/third_party/vue.js deleted file mode 100644 index f96ee40..0000000 --- a/add-on/config/js/third_party/vue.js +++ /dev/null @@ -1,14909 +0,0 @@ -/*! - * Vue.js v1.0.28-csp - * (c) 2016 Evan You - * Released under the MIT License. - */ -(function (global, factory) { - typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() : - typeof define === 'function' && define.amd ? define(factory) : - (global.Vue = factory()); -}(this, (function () { 'use strict'; - -function set(obj, key, val) { - if (hasOwn(obj, key)) { - obj[key] = val; - return; - } - if (obj._isVue) { - set(obj._data, key, val); - return; - } - var ob = obj.__ob__; - if (!ob) { - obj[key] = val; - return; - } - ob.convert(key, val); - ob.dep.notify(); - if (ob.vms) { - var i = ob.vms.length; - while (i--) { - var vm = ob.vms[i]; - vm._proxy(key); - vm._digest(); - } - } - return val; -} - -/** - * Delete a property and trigger change if necessary. - * - * @param {Object} obj - * @param {String} key - */ - -function del(obj, key) { - if (!hasOwn(obj, key)) { - return; - } - delete obj[key]; - var ob = obj.__ob__; - if (!ob) { - if (obj._isVue) { - delete obj._data[key]; - obj._digest(); - } - return; - } - ob.dep.notify(); - if (ob.vms) { - var i = ob.vms.length; - while (i--) { - var vm = ob.vms[i]; - vm._unproxy(key); - vm._digest(); - } - } -} - -var hasOwnProperty = Object.prototype.hasOwnProperty; -/** - * Check whether the object has the property. - * - * @param {Object} obj - * @param {String} key - * @return {Boolean} - */ - -function hasOwn(obj, key) { - return hasOwnProperty.call(obj, key); -} - -/** - * Check if an expression is a literal value. - * - * @param {String} exp - * @return {Boolean} - */ - -var literalValueRE = /^\s?(true|false|-?[\d\.]+|'[^']*'|"[^"]*")\s?$/; - -function isLiteral(exp) { - return literalValueRE.test(exp); -} - -/** - * Check if a string starts with $ or _ - * - * @param {String} str - * @return {Boolean} - */ - -function isReserved(str) { - var c = (str + '').charCodeAt(0); - return c === 0x24 || c === 0x5F; -} - -/** - * Guard text output, make sure undefined outputs - * empty string - * - * @param {*} value - * @return {String} - */ - -function _toString(value) { - return value == null ? '' : value.toString(); -} - -/** - * Check and convert possible numeric strings to numbers - * before setting back to data - * - * @param {*} value - * @return {*|Number} - */ - -function toNumber(value) { - if (typeof value !== 'string') { - return value; - } else { - var parsed = Number(value); - return isNaN(parsed) ? value : parsed; - } -} - -/** - * Convert string boolean literals into real booleans. - * - * @param {*} value - * @return {*|Boolean} - */ - -function toBoolean(value) { - return value === 'true' ? true : value === 'false' ? false : value; -} - -/** - * Strip quotes from a string - * - * @param {String} str - * @return {String | false} - */ - -function stripQuotes(str) { - var a = str.charCodeAt(0); - var b = str.charCodeAt(str.length - 1); - return a === b && (a === 0x22 || a === 0x27) ? str.slice(1, -1) : str; -} - -/** - * Camelize a hyphen-delimited string. - * - * @param {String} str - * @return {String} - */ - -var camelizeRE = /-(\w)/g; - -function camelize(str) { - return str.replace(camelizeRE, toUpper); -} - -function toUpper(_, c) { - return c ? c.toUpperCase() : ''; -} - -/** - * Hyphenate a camelCase string. - * - * @param {String} str - * @return {String} - */ - -var hyphenateRE = /([^-])([A-Z])/g; - -function hyphenate(str) { - return str.replace(hyphenateRE, '$1-$2').replace(hyphenateRE, '$1-$2').toLowerCase(); -} - -/** - * Converts hyphen/underscore/slash delimitered names into - * camelized classNames. - * - * e.g. my-component => MyComponent - * some_else => SomeElse - * some/comp => SomeComp - * - * @param {String} str - * @return {String} - */ - -var classifyRE = /(?:^|[-_\/])(\w)/g; - -function classify(str) { - return str.replace(classifyRE, toUpper); -} - -/** - * Simple bind, faster than native - * - * @param {Function} fn - * @param {Object} ctx - * @return {Function} - */ - -function bind(fn, ctx) { - return function (a) { - var l = arguments.length; - return l ? l > 1 ? fn.apply(ctx, arguments) : fn.call(ctx, a) : fn.call(ctx); - }; -} - -/** - * Convert an Array-like object to a real Array. - * - * @param {Array-like} list - * @param {Number} [start] - start index - * @return {Array} - */ - -function toArray(list, start) { - start = start || 0; - var i = list.length - start; - var ret = new Array(i); - while (i--) { - ret[i] = list[i + start]; - } - return ret; -} - -/** - * Mix properties into target object. - * - * @param {Object} to - * @param {Object} from - */ - -function extend(to, from) { - var keys = Object.keys(from); - var i = keys.length; - while (i--) { - to[keys[i]] = from[keys[i]]; - } - return to; -} - -/** - * Quick object check - this is primarily used to tell - * Objects from primitive values when we know the value - * is a JSON-compliant type. - * - * @param {*} obj - * @return {Boolean} - */ - -function isObject(obj) { - return obj !== null && typeof obj === 'object'; -} - -/** - * Strict object type check. Only returns true - * for plain JavaScript objects. - * - * @param {*} obj - * @return {Boolean} - */ - -var toString = Object.prototype.toString; -var OBJECT_STRING = '[object Object]'; - -function isPlainObject(obj) { - return toString.call(obj) === OBJECT_STRING; -} - -/** - * Array type check. - * - * @param {*} obj - * @return {Boolean} - */ - -var isArray = Array.isArray; - -/** - * Define a property. - * - * @param {Object} obj - * @param {String} key - * @param {*} val - * @param {Boolean} [enumerable] - */ - -function def(obj, key, val, enumerable) { - Object.defineProperty(obj, key, { - value: val, - enumerable: !!enumerable, - writable: true, - configurable: true - }); -} - -/** - * Debounce a function so it only gets called after the - * input stops arriving after the given wait period. - * - * @param {Function} func - * @param {Number} wait - * @return {Function} - the debounced function - */ - -function _debounce(func, wait) { - var timeout, args, context, timestamp, result; - var later = function later() { - var last = Date.now() - timestamp; - if (last < wait && last >= 0) { - timeout = setTimeout(later, wait - last); - } else { - timeout = null; - result = func.apply(context, args); - if (!timeout) context = args = null; - } - }; - return function () { - context = this; - args = arguments; - timestamp = Date.now(); - if (!timeout) { - timeout = setTimeout(later, wait); - } - return result; - }; -} - -/** - * Manual indexOf because it's slightly faster than - * native. - * - * @param {Array} arr - * @param {*} obj - */ - -function indexOf(arr, obj) { - var i = arr.length; - while (i--) { - if (arr[i] === obj) return i; - } - return -1; -} - -/** - * Make a cancellable version of an async callback. - * - * @param {Function} fn - * @return {Function} - */ - -function cancellable(fn) { - var cb = function cb() { - if (!cb.cancelled) { - return fn.apply(this, arguments); - } - }; - cb.cancel = function () { - cb.cancelled = true; - }; - return cb; -} - -/** - * Check if two values are loosely equal - that is, - * if they are plain objects, do they have the same shape? - * - * @param {*} a - * @param {*} b - * @return {Boolean} - */ - -function looseEqual(a, b) { - /* eslint-disable eqeqeq */ - return a == b || (isObject(a) && isObject(b) ? JSON.stringify(a) === JSON.stringify(b) : false); - /* eslint-enable eqeqeq */ -} - -var hasProto = ('__proto__' in {}); - -// Browser environment sniffing -var inBrowser = typeof window !== 'undefined' && Object.prototype.toString.call(window) !== '[object Object]'; - -// detect devtools -var devtools = inBrowser && window.__VUE_DEVTOOLS_GLOBAL_HOOK__; - -// UA sniffing for working around browser-specific quirks -var UA = inBrowser && window.navigator.userAgent.toLowerCase(); -var isIE = UA && UA.indexOf('trident') > 0; -var isIE9 = UA && UA.indexOf('msie 9.0') > 0; -var isAndroid = UA && UA.indexOf('android') > 0; -var isIOS = UA && /iphone|ipad|ipod|ios/.test(UA); - -var transitionProp = undefined; -var transitionEndEvent = undefined; -var animationProp = undefined; -var animationEndEvent = undefined; - -// Transition property/event sniffing -if (inBrowser && !isIE9) { - var isWebkitTrans = window.ontransitionend === undefined && window.onwebkittransitionend !== undefined; - var isWebkitAnim = window.onanimationend === undefined && window.onwebkitanimationend !== undefined; - transitionProp = isWebkitTrans ? 'WebkitTransition' : 'transition'; - transitionEndEvent = isWebkitTrans ? 'webkitTransitionEnd' : 'transitionend'; - animationProp = isWebkitAnim ? 'WebkitAnimation' : 'animation'; - animationEndEvent = isWebkitAnim ? 'webkitAnimationEnd' : 'animationend'; -} - -/* istanbul ignore next */ -function isNative(Ctor) { - return (/native code/.test(Ctor.toString()) - ); -} - -/** - * Defer a task to execute it asynchronously. Ideally this - * should be executed as a microtask, so we leverage - * MutationObserver if it's available, and fallback to - * setTimeout(0). - * - * @param {Function} cb - * @param {Object} ctx - */ - -var nextTick = (function () { - var callbacks = []; - var pending = false; - var timerFunc = undefined; - - function nextTickHandler() { - pending = false; - var copies = callbacks.slice(0); - callbacks.length = 0; - for (var i = 0; i < copies.length; i++) { - copies[i](); - } - } - - // the nextTick behavior leverages the microtask queue, which can be accessed - // via either native Promise.then or MutationObserver. - // MutationObserver has wider support, however it is seriously bugged in - // UIWebView in iOS >= 9.3.3 when triggered in touch event handlers. It - // completely stops working after triggering a few times... so, if native - // Promise is available, we will use it: - /* istanbul ignore if */ - if (typeof Promise !== 'undefined' && isNative(Promise)) { - var p = Promise.resolve(); - var noop = function noop() {}; - timerFunc = function () { - p.then(nextTickHandler); - // in problematic UIWebViews, Promise.then doesn't completely break, but - // it can get stuck in a weird state where callbacks are pushed into the - // microtask queue but the queue isn't being flushed, until the browser - // needs to do some other work, e.g. handle a timer. Therefore we can - // "force" the microtask queue to be flushed by adding an empty timer. - if (isIOS) setTimeout(noop); - }; - } else if (typeof MutationObserver !== 'undefined') { - // use MutationObserver where native Promise is not available, - // e.g. IE11, iOS7, Android 4.4 - var counter = 1; - var observer = new MutationObserver(nextTickHandler); - var textNode = document.createTextNode(String(counter)); - observer.observe(textNode, { - characterData: true - }); - timerFunc = function () { - counter = (counter + 1) % 2; - textNode.data = String(counter); - }; - } else { - // fallback to setTimeout - /* istanbul ignore next */ - timerFunc = setTimeout; - } - - return function (cb, ctx) { - var func = ctx ? function () { - cb.call(ctx); - } : cb; - callbacks.push(func); - if (pending) return; - pending = true; - timerFunc(nextTickHandler, 0); - }; -})(); - -var _Set = undefined; -/* istanbul ignore if */ -if (typeof Set !== 'undefined' && isNative(Set)) { - // use native Set when available. - _Set = Set; -} else { - // a non-standard Set polyfill that only works with primitive keys. - _Set = function () { - this.set = Object.create(null); - }; - _Set.prototype.has = function (key) { - return this.set[key] !== undefined; - }; - _Set.prototype.add = function (key) { - this.set[key] = 1; - }; - _Set.prototype.clear = function () { - this.set = Object.create(null); - }; -} - -function Cache(limit) { - this.size = 0; - this.limit = limit; - this.head = this.tail = undefined; - this._keymap = Object.create(null); -} - -var p = Cache.prototype; - -/** - * Put into the cache associated with . - * Returns the entry which was removed to make room for - * the new entry. Otherwise undefined is returned. - * (i.e. if there was enough room already). - * - * @param {String} key - * @param {*} value - * @return {Entry|undefined} - */ - -p.put = function (key, value) { - var removed; - - var entry = this.get(key, true); - if (!entry) { - if (this.size === this.limit) { - removed = this.shift(); - } - entry = { - key: key - }; - this._keymap[key] = entry; - if (this.tail) { - this.tail.newer = entry; - entry.older = this.tail; - } else { - this.head = entry; - } - this.tail = entry; - this.size++; - } - entry.value = value; - - return removed; -}; - -/** - * Purge the least recently used (oldest) entry from the - * cache. Returns the removed entry or undefined if the - * cache was empty. - */ - -p.shift = function () { - var entry = this.head; - if (entry) { - this.head = this.head.newer; - this.head.older = undefined; - entry.newer = entry.older = undefined; - this._keymap[entry.key] = undefined; - this.size--; - } - return entry; -}; - -/** - * Get and register recent use of . Returns the value - * associated with or undefined if not in cache. - * - * @param {String} key - * @param {Boolean} returnEntry - * @return {Entry|*} - */ - -p.get = function (key, returnEntry) { - var entry = this._keymap[key]; - if (entry === undefined) return; - if (entry === this.tail) { - return returnEntry ? entry : entry.value; - } - // HEAD--------------TAIL - // <.older .newer> - // <--- add direction -- - // A B C E - if (entry.newer) { - if (entry === this.head) { - this.head = entry.newer; - } - entry.newer.older = entry.older; // C <-- E. - } - if (entry.older) { - entry.older.newer = entry.newer; // C. --> E - } - entry.newer = undefined; // D --x - entry.older = this.tail; // D. --> E - if (this.tail) { - this.tail.newer = entry; // E. <-- D - } - this.tail = entry; - return returnEntry ? entry : entry.value; -}; - -var cache$1 = new Cache(1000); -var reservedArgRE = /^in$|^-?\d+/; - -/** - * Parser state - */ - -var str; -var dir; -var len; -var index; -var chr; -var state; -var startState = 0; -var filterState = 1; -var filterNameState = 2; -var filterArgState = 3; - -var doubleChr = 0x22; -var singleChr = 0x27; -var pipeChr = 0x7C; -var escapeChr = 0x5C; -var spaceChr = 0x20; - -var expStartChr = { 0x5B: 1, 0x7B: 1, 0x28: 1 }; -var expChrPair = { 0x5B: 0x5D, 0x7B: 0x7D, 0x28: 0x29 }; - -function peek() { - return str.charCodeAt(index + 1); -} - -function next() { - return str.charCodeAt(++index); -} - -function eof() { - return index >= len; -} - -function eatSpace() { - while (peek() === spaceChr) { - next(); - } -} - -function isStringStart(chr) { - return chr === doubleChr || chr === singleChr; -} - -function isExpStart(chr) { - return expStartChr[chr]; -} - -function isExpEnd(start, chr) { - return expChrPair[start] === chr; -} - -function parseString() { - var stringQuote = next(); - var chr; - while (!eof()) { - chr = next(); - // escape char - if (chr === escapeChr) { - next(); - } else if (chr === stringQuote) { - break; - } - } -} - -function parseSpecialExp(chr) { - var inExp = 0; - var startChr = chr; - - while (!eof()) { - chr = peek(); - if (isStringStart(chr)) { - parseString(); - continue; - } - - if (startChr === chr) { - inExp++; - } - if (isExpEnd(startChr, chr)) { - inExp--; - } - - next(); - - if (inExp === 0) { - break; - } - } -} - -/** - * syntax: - * expression | filterName [arg arg [| filterName arg arg]] - */ - -function parseExpression() { - var start = index; - while (!eof()) { - chr = peek(); - if (isStringStart(chr)) { - parseString(); - } else if (isExpStart(chr)) { - parseSpecialExp(chr); - } else if (chr === pipeChr) { - next(); - chr = peek(); - if (chr === pipeChr) { - next(); - } else { - if (state === startState || state === filterArgState) { - state = filterState; - } - break; - } - } else if (chr === spaceChr && (state === filterNameState || state === filterArgState)) { - eatSpace(); - break; - } else { - if (state === filterState) { - state = filterNameState; - } - next(); - } - } - - return str.slice(start + 1, index) || null; -} - -function parseFilterList() { - var filters = []; - while (!eof()) { - filters.push(parseFilter()); - } - return filters; -} - -function parseFilter() { - var filter = {}; - var args; - - state = filterState; - filter.name = parseExpression().trim(); - - state = filterArgState; - args = parseFilterArguments(); - - if (args.length) { - filter.args = args; - } - return filter; -} - -function parseFilterArguments() { - var args = []; - while (!eof() && state !== filterState) { - var arg = parseExpression(); - if (!arg) { - break; - } - args.push(processFilterArg(arg)); - } - - return args; -} - -/** - * Check if an argument is dynamic and strip quotes. - * - * @param {String} arg - * @return {Object} - */ - -function processFilterArg(arg) { - if (reservedArgRE.test(arg)) { - return { - value: toNumber(arg), - dynamic: false - }; - } else { - var stripped = stripQuotes(arg); - var dynamic = stripped === arg; - return { - value: dynamic ? arg : stripped, - dynamic: dynamic - }; - } -} - -/** - * Parse a directive value and extract the expression - * and its filters into a descriptor. - * - * Example: - * - * "a + 1 | uppercase" will yield: - * { - * expression: 'a + 1', - * filters: [ - * { name: 'uppercase', args: null } - * ] - * } - * - * @param {String} s - * @return {Object} - */ - -function parseDirective(s) { - var hit = cache$1.get(s); - if (hit) { - return hit; - } - - // reset parser state - str = s; - dir = {}; - len = str.length; - index = -1; - chr = ''; - state = startState; - - var filters; - - if (str.indexOf('|') < 0) { - dir.expression = str.trim(); - } else { - dir.expression = parseExpression().trim(); - filters = parseFilterList(); - if (filters.length) { - dir.filters = filters; - } - } - - cache$1.put(s, dir); - return dir; -} - -var directive = Object.freeze({ - parseDirective: parseDirective -}); - -var regexEscapeRE = /[-.*+?^${}()|[\]\/\\]/g; -var cache = undefined; -var tagRE = undefined; -var htmlRE = undefined; -/** - * Escape a string so it can be used in a RegExp - * constructor. - * - * @param {String} str - */ - -function escapeRegex(str) { - return str.replace(regexEscapeRE, '\\$&'); -} - -function compileRegex() { - var open = escapeRegex(config.delimiters[0]); - var close = escapeRegex(config.delimiters[1]); - var unsafeOpen = escapeRegex(config.unsafeDelimiters[0]); - var unsafeClose = escapeRegex(config.unsafeDelimiters[1]); - tagRE = new RegExp(unsafeOpen + '((?:.|\\n)+?)' + unsafeClose + '|' + open + '((?:.|\\n)+?)' + close, 'g'); - htmlRE = new RegExp('^' + unsafeOpen + '((?:.|\\n)+?)' + unsafeClose + '$'); - // reset cache - cache = new Cache(1000); -} - -/** - * Parse a template text string into an array of tokens. - * - * @param {String} text - * @return {Array | null} - * - {String} type - * - {String} value - * - {Boolean} [html] - * - {Boolean} [oneTime] - */ - -function parseText(text) { - if (!cache) { - compileRegex(); - } - var hit = cache.get(text); - if (hit) { - return hit; - } - if (!tagRE.test(text)) { - return null; - } - var tokens = []; - var lastIndex = tagRE.lastIndex = 0; - var match, index, html, value, first, oneTime; - /* eslint-disable no-cond-assign */ - while (match = tagRE.exec(text)) { - /* eslint-enable no-cond-assign */ - index = match.index; - // push text token - if (index > lastIndex) { - tokens.push({ - value: text.slice(lastIndex, index) - }); - } - // tag token - html = htmlRE.test(match[0]); - value = html ? match[1] : match[2]; - first = value.charCodeAt(0); - oneTime = first === 42; // * - value = oneTime ? value.slice(1) : value; - tokens.push({ - tag: true, - value: value.trim(), - html: html, - oneTime: oneTime - }); - lastIndex = index + match[0].length; - } - if (lastIndex < text.length) { - tokens.push({ - value: text.slice(lastIndex) - }); - } - cache.put(text, tokens); - return tokens; -} - -/** - * Format a list of tokens into an expression. - * e.g. tokens parsed from 'a {{b}} c' can be serialized - * into one single expression as '"a " + b + " c"'. - * - * @param {Array} tokens - * @param {Vue} [vm] - * @return {String} - */ - -function tokensToExp(tokens, vm) { - if (tokens.length > 1) { - return tokens.map(function (token) { - return formatToken(token, vm); - }).join('+'); - } else { - return formatToken(tokens[0], vm, true); - } -} - -/** - * Format a single token. - * - * @param {Object} token - * @param {Vue} [vm] - * @param {Boolean} [single] - * @return {String} - */ - -function formatToken(token, vm, single) { - return token.tag ? token.oneTime && vm ? '"' + vm.$eval(token.value) + '"' : inlineFilters(token.value, single) : '"' + token.value + '"'; -} - -/** - * For an attribute with multiple interpolation tags, - * e.g. attr="some-{{thing | filter}}", in order to combine - * the whole thing into a single watchable expression, we - * have to inline those filters. This function does exactly - * that. This is a bit hacky but it avoids heavy changes - * to directive parser and watcher mechanism. - * - * @param {String} exp - * @param {Boolean} single - * @return {String} - */ - -var filterRE = /[^|]\|[^|]/; -function inlineFilters(exp, single) { - if (!filterRE.test(exp)) { - return single ? exp : '(' + exp + ')'; - } else { - var dir = parseDirective(exp); - if (!dir.filters) { - return '(' + exp + ')'; - } else { - return 'this._applyFilters(' + dir.expression + // value - ',null,' + // oldValue (null for read) - JSON.stringify(dir.filters) + // filter descriptors - ',false)'; // write? - } - } -} - -var text = Object.freeze({ - compileRegex: compileRegex, - parseText: parseText, - tokensToExp: tokensToExp -}); - -var delimiters = ['{{', '}}']; -var unsafeDelimiters = ['{{{', '}}}']; - -var config = Object.defineProperties({ - - /** - * Whether to print debug messages. - * Also enables stack trace for warnings. - * - * @type {Boolean} - */ - - debug: false, - - /** - * Whether to suppress warnings. - * - * @type {Boolean} - */ - - silent: false, - - /** - * Whether to use async rendering. - */ - - async: true, - - /** - * Whether to warn against errors caught when evaluating - * expressions. - */ - - warnExpressionErrors: true, - - /** - * Whether to allow devtools inspection. - * Disabled by default in production builds. - */ - - devtools: 'development' !== 'production', - - /** - * Internal flag to indicate the delimiters have been - * changed. - * - * @type {Boolean} - */ - - _delimitersChanged: true, - - /** - * List of asset types that a component can own. - * - * @type {Array} - */ - - _assetTypes: ['component', 'directive', 'elementDirective', 'filter', 'transition', 'partial'], - - /** - * prop binding modes - */ - - _propBindingModes: { - ONE_WAY: 0, - TWO_WAY: 1, - ONE_TIME: 2 - }, - - /** - * Max circular updates allowed in a batcher flush cycle. - */ - - _maxUpdateCount: 100 - -}, { - delimiters: { /** - * Interpolation delimiters. Changing these would trigger - * the text parser to re-compile the regular expressions. - * - * @type {Array} - */ - - get: function get() { - return delimiters; - }, - set: function set(val) { - delimiters = val; - compileRegex(); - }, - configurable: true, - enumerable: true - }, - unsafeDelimiters: { - get: function get() { - return unsafeDelimiters; - }, - set: function set(val) { - unsafeDelimiters = val; - compileRegex(); - }, - configurable: true, - enumerable: true - } -}); - -var warn = undefined; -var formatComponentName = undefined; - -if ('development' !== 'production') { - (function () { - var hasConsole = typeof console !== 'undefined'; - - warn = function (msg, vm) { - if (hasConsole && !config.silent) { - console.error('[Vue warn]: ' + msg + (vm ? formatComponentName(vm) : '')); - } - }; - - formatComponentName = function (vm) { - var name = vm._isVue ? vm.$options.name : vm.name; - return name ? ' (found in component: <' + hyphenate(name) + '>)' : ''; - }; - })(); -} - -/** - * Append with transition. - * - * @param {Element} el - * @param {Element} target - * @param {Vue} vm - * @param {Function} [cb] - */ - -function appendWithTransition(el, target, vm, cb) { - applyTransition(el, 1, function () { - target.appendChild(el); - }, vm, cb); -} - -/** - * InsertBefore with transition. - * - * @param {Element} el - * @param {Element} target - * @param {Vue} vm - * @param {Function} [cb] - */ - -function beforeWithTransition(el, target, vm, cb) { - applyTransition(el, 1, function () { - before(el, target); - }, vm, cb); -} - -/** - * Remove with transition. - * - * @param {Element} el - * @param {Vue} vm - * @param {Function} [cb] - */ - -function removeWithTransition(el, vm, cb) { - applyTransition(el, -1, function () { - remove(el); - }, vm, cb); -} - -/** - * Apply transitions with an operation callback. - * - * @param {Element} el - * @param {Number} direction - * 1: enter - * -1: leave - * @param {Function} op - the actual DOM operation - * @param {Vue} vm - * @param {Function} [cb] - */ - -function applyTransition(el, direction, op, vm, cb) { - var transition = el.__v_trans; - if (!transition || - // skip if there are no js hooks and CSS transition is - // not supported - !transition.hooks && !transitionEndEvent || - // skip transitions for initial compile - !vm._isCompiled || - // if the vm is being manipulated by a parent directive - // during the parent's compilation phase, skip the - // animation. - vm.$parent && !vm.$parent._isCompiled) { - op(); - if (cb) cb(); - return; - } - var action = direction > 0 ? 'enter' : 'leave'; - transition[action](op, cb); -} - -var transition = Object.freeze({ - appendWithTransition: appendWithTransition, - beforeWithTransition: beforeWithTransition, - removeWithTransition: removeWithTransition, - applyTransition: applyTransition -}); - -/** - * Query an element selector if it's not an element already. - * - * @param {String|Element} el - * @return {Element} - */ - -function query(el) { - if (typeof el === 'string') { - var selector = el; - el = document.querySelector(el); - if (!el) { - 'development' !== 'production' && warn('Cannot find element: ' + selector); - } - } - return el; -} - -/** - * Check if a node is in the document. - * Note: document.documentElement.contains should work here - * but always returns false for comment nodes in phantomjs, - * making unit tests difficult. This is fixed by doing the - * contains() check on the node's parentNode instead of - * the node itself. - * - * @param {Node} node - * @return {Boolean} - */ - -function inDoc(node) { - if (!node) return false; - var doc = node.ownerDocument.documentElement; - var parent = node.parentNode; - return doc === node || doc === parent || !!(parent && parent.nodeType === 1 && doc.contains(parent)); -} - -/** - * Get and remove an attribute from a node. - * - * @param {Node} node - * @param {String} _attr - */ - -function getAttr(node, _attr) { - var val = node.getAttribute(_attr); - if (val !== null) { - node.removeAttribute(_attr); - } - return val; -} - -/** - * Get an attribute with colon or v-bind: prefix. - * - * @param {Node} node - * @param {String} name - * @return {String|null} - */ - -function getBindAttr(node, name) { - var val = getAttr(node, ':' + name); - if (val === null) { - val = getAttr(node, 'v-bind:' + name); - } - return val; -} - -/** - * Check the presence of a bind attribute. - * - * @param {Node} node - * @param {String} name - * @return {Boolean} - */ - -function hasBindAttr(node, name) { - return node.hasAttribute(name) || node.hasAttribute(':' + name) || node.hasAttribute('v-bind:' + name); -} - -/** - * Insert el before target - * - * @param {Element} el - * @param {Element} target - */ - -function before(el, target) { - target.parentNode.insertBefore(el, target); -} - -/** - * Insert el after target - * - * @param {Element} el - * @param {Element} target - */ - -function after(el, target) { - if (target.nextSibling) { - before(el, target.nextSibling); - } else { - target.parentNode.appendChild(el); - } -} - -/** - * Remove el from DOM - * - * @param {Element} el - */ - -function remove(el) { - el.parentNode.removeChild(el); -} - -/** - * Prepend el to target - * - * @param {Element} el - * @param {Element} target - */ - -function prepend(el, target) { - if (target.firstChild) { - before(el, target.firstChild); - } else { - target.appendChild(el); - } -} - -/** - * Replace target with el - * - * @param {Element} target - * @param {Element} el - */ - -function replace(target, el) { - var parent = target.parentNode; - if (parent) { - parent.replaceChild(el, target); - } -} - -/** - * Add event listener shorthand. - * - * @param {Element} el - * @param {String} event - * @param {Function} cb - * @param {Boolean} [useCapture] - */ - -function on(el, event, cb, useCapture) { - el.addEventListener(event, cb, useCapture); -} - -/** - * Remove event listener shorthand. - * - * @param {Element} el - * @param {String} event - * @param {Function} cb - */ - -function off(el, event, cb) { - el.removeEventListener(event, cb); -} - -/** - * For IE9 compat: when both class and :class are present - * getAttribute('class') returns wrong value... - * - * @param {Element} el - * @return {String} - */ - -function getClass(el) { - var classname = el.className; - if (typeof classname === 'object') { - classname = classname.baseVal || ''; - } - return classname; -} - -/** - * In IE9, setAttribute('class') will result in empty class - * if the element also has the :class attribute; However in - * PhantomJS, setting `className` does not work on SVG elements... - * So we have to do a conditional check here. - * - * @param {Element} el - * @param {String} cls - */ - -function setClass(el, cls) { - /* istanbul ignore if */ - if (isIE9 && !/svg$/.test(el.namespaceURI)) { - el.className = cls; - } else { - el.setAttribute('class', cls); - } -} - -/** - * Add class with compatibility for IE & SVG - * - * @param {Element} el - * @param {String} cls - */ - -function addClass(el, cls) { - if (el.classList) { - el.classList.add(cls); - } else { - var cur = ' ' + getClass(el) + ' '; - if (cur.indexOf(' ' + cls + ' ') < 0) { - setClass(el, (cur + cls).trim()); - } - } -} - -/** - * Remove class with compatibility for IE & SVG - * - * @param {Element} el - * @param {String} cls - */ - -function removeClass(el, cls) { - if (el.classList) { - el.classList.remove(cls); - } else { - var cur = ' ' + getClass(el) + ' '; - var tar = ' ' + cls + ' '; - while (cur.indexOf(tar) >= 0) { - cur = cur.replace(tar, ' '); - } - setClass(el, cur.trim()); - } - if (!el.className) { - el.removeAttribute('class'); - } -} - -/** - * Extract raw content inside an element into a temporary - * container div - * - * @param {Element} el - * @param {Boolean} asFragment - * @return {Element|DocumentFragment} - */ - -function extractContent(el, asFragment) { - var child; - var rawContent; - /* istanbul ignore if */ - if (isTemplate(el) && isFragment(el.content)) { - el = el.content; - } - if (el.hasChildNodes()) { - trimNode(el); - rawContent = asFragment ? document.createDocumentFragment() : document.createElement('div'); - /* eslint-disable no-cond-assign */ - while (child = el.firstChild) { - /* eslint-enable no-cond-assign */ - rawContent.appendChild(child); - } - } - return rawContent; -} - -/** - * Trim possible empty head/tail text and comment - * nodes inside a parent. - * - * @param {Node} node - */ - -function trimNode(node) { - var child; - /* eslint-disable no-sequences */ - while ((child = node.firstChild, isTrimmable(child))) { - node.removeChild(child); - } - while ((child = node.lastChild, isTrimmable(child))) { - node.removeChild(child); - } - /* eslint-enable no-sequences */ -} - -function isTrimmable(node) { - return node && (node.nodeType === 3 && !node.data.trim() || node.nodeType === 8); -} - -/** - * Check if an element is a template tag. - * Note if the template appears inside an SVG its tagName - * will be in lowercase. - * - * @param {Element} el - */ - -function isTemplate(el) { - return el.tagName && el.tagName.toLowerCase() === 'template'; -} - -/** - * Create an "anchor" for performing dom insertion/removals. - * This is used in a number of scenarios: - * - fragment instance - * - v-html - * - v-if - * - v-for - * - component - * - * @param {String} content - * @param {Boolean} persist - IE trashes empty textNodes on - * cloneNode(true), so in certain - * cases the anchor needs to be - * non-empty to be persisted in - * templates. - * @return {Comment|Text} - */ - -function createAnchor(content, persist) { - var anchor = config.debug ? document.createComment(content) : document.createTextNode(persist ? ' ' : ''); - anchor.__v_anchor = true; - return anchor; -} - -/** - * Find a component ref attribute that starts with $. - * - * @param {Element} node - * @return {String|undefined} - */ - -var refRE = /^v-ref:/; - -function findRef(node) { - if (node.hasAttributes()) { - var attrs = node.attributes; - for (var i = 0, l = attrs.length; i < l; i++) { - var name = attrs[i].name; - if (refRE.test(name)) { - return camelize(name.replace(refRE, '')); - } - } - } -} - -/** - * Map a function to a range of nodes . - * - * @param {Node} node - * @param {Node} end - * @param {Function} op - */ - -function mapNodeRange(node, end, op) { - var next; - while (node !== end) { - next = node.nextSibling; - op(node); - node = next; - } - op(end); -} - -/** - * Remove a range of nodes with transition, store - * the nodes in a fragment with correct ordering, - * and call callback when done. - * - * @param {Node} start - * @param {Node} end - * @param {Vue} vm - * @param {DocumentFragment} frag - * @param {Function} cb - */ - -function removeNodeRange(start, end, vm, frag, cb) { - var done = false; - var removed = 0; - var nodes = []; - mapNodeRange(start, end, function (node) { - if (node === end) done = true; - nodes.push(node); - removeWithTransition(node, vm, onRemoved); - }); - function onRemoved() { - removed++; - if (done && removed >= nodes.length) { - for (var i = 0; i < nodes.length; i++) { - frag.appendChild(nodes[i]); - } - cb && cb(); - } - } -} - -/** - * Check if a node is a DocumentFragment. - * - * @param {Node} node - * @return {Boolean} - */ - -function isFragment(node) { - return node && node.nodeType === 11; -} - -/** - * Get outerHTML of elements, taking care - * of SVG elements in IE as well. - * - * @param {Element} el - * @return {String} - */ - -function getOuterHTML(el) { - if (el.outerHTML) { - return el.outerHTML; - } else { - var container = document.createElement('div'); - container.appendChild(el.cloneNode(true)); - return container.innerHTML; - } -} - -var commonTagRE = /^(div|p|span|img|a|b|i|br|ul|ol|li|h1|h2|h3|h4|h5|h6|code|pre|table|th|td|tr|form|label|input|select|option|nav|article|section|header|footer)$/i; -var reservedTagRE = /^(slot|partial|component)$/i; - -var isUnknownElement = undefined; -if ('development' !== 'production') { - isUnknownElement = function (el, tag) { - if (tag.indexOf('-') > -1) { - // http://stackoverflow.com/a/28210364/1070244 - return el.constructor === window.HTMLUnknownElement || el.constructor === window.HTMLElement; - } else { - return (/HTMLUnknownElement/.test(el.toString()) && - // Chrome returns unknown for several HTML5 elements. - // https://code.google.com/p/chromium/issues/detail?id=540526 - // Firefox returns unknown for some "Interactive elements." - !/^(data|time|rtc|rb|details|dialog|summary)$/.test(tag) - ); - } - }; -} - -/** - * Check if an element is a component, if yes return its - * component id. - * - * @param {Element} el - * @param {Object} options - * @return {Object|undefined} - */ - -function checkComponentAttr(el, options) { - var tag = el.tagName.toLowerCase(); - var hasAttrs = el.hasAttributes(); - if (!commonTagRE.test(tag) && !reservedTagRE.test(tag)) { - if (resolveAsset(options, 'components', tag)) { - return { id: tag }; - } else { - var is = hasAttrs && getIsBinding(el, options); - if (is) { - return is; - } else if ('development' !== 'production') { - var expectedTag = options._componentNameMap && options._componentNameMap[tag]; - if (expectedTag) { - warn('Unknown custom element: <' + tag + '> - ' + 'did you mean <' + expectedTag + '>? ' + 'HTML is case-insensitive, remember to use kebab-case in templates.'); - } else if (isUnknownElement(el, tag)) { - warn('Unknown custom element: <' + tag + '> - did you ' + 'register the component correctly? For recursive components, ' + 'make sure to provide the "name" option.'); - } - } - } - } else if (hasAttrs) { - return getIsBinding(el, options); - } -} - -/** - * Get "is" binding from an element. - * - * @param {Element} el - * @param {Object} options - * @return {Object|undefined} - */ - -function getIsBinding(el, options) { - // dynamic syntax - var exp = el.getAttribute('is'); - if (exp != null) { - if (resolveAsset(options, 'components', exp)) { - el.removeAttribute('is'); - return { id: exp }; - } - } else { - exp = getBindAttr(el, 'is'); - if (exp != null) { - return { id: exp, dynamic: true }; - } - } -} - -/** - * Option overwriting strategies are functions that handle - * how to merge a parent option value and a child option - * value into the final value. - * - * All strategy functions follow the same signature: - * - * @param {*} parentVal - * @param {*} childVal - * @param {Vue} [vm] - */ - -var strats = config.optionMergeStrategies = Object.create(null); - -/** - * Helper that recursively merges two data objects together. - */ - -function mergeData(to, from) { - var key, toVal, fromVal; - for (key in from) { - toVal = to[key]; - fromVal = from[key]; - if (!hasOwn(to, key)) { - set(to, key, fromVal); - } else if (isObject(toVal) && isObject(fromVal)) { - mergeData(toVal, fromVal); - } - } - return to; -} - -/** - * Data - */ - -strats.data = function (parentVal, childVal, vm) { - if (!vm) { - // in a Vue.extend merge, both should be functions - if (!childVal) { - return parentVal; - } - if (typeof childVal !== 'function') { - 'development' !== 'production' && warn('The "data" option should be a function ' + 'that returns a per-instance value in component ' + 'definitions.', vm); - return parentVal; - } - if (!parentVal) { - return childVal; - } - // when parentVal & childVal are both present, - // we need to return a function that returns the - // merged result of both functions... no need to - // check if parentVal is a function here because - // it has to be a function to pass previous merges. - return function mergedDataFn() { - return mergeData(childVal.call(this), parentVal.call(this)); - }; - } else if (parentVal || childVal) { - return function mergedInstanceDataFn() { - // instance merge - var instanceData = typeof childVal === 'function' ? childVal.call(vm) : childVal; - var defaultData = typeof parentVal === 'function' ? parentVal.call(vm) : undefined; - if (instanceData) { - return mergeData(instanceData, defaultData); - } else { - return defaultData; - } - }; - } -}; - -/** - * El - */ - -strats.el = function (parentVal, childVal, vm) { - if (!vm && childVal && typeof childVal !== 'function') { - 'development' !== 'production' && warn('The "el" option should be a function ' + 'that returns a per-instance value in component ' + 'definitions.', vm); - return; - } - var ret = childVal || parentVal; - // invoke the element factory if this is instance merge - return vm && typeof ret === 'function' ? ret.call(vm) : ret; -}; - -/** - * Hooks and param attributes are merged as arrays. - */ - -strats.init = strats.created = strats.ready = strats.attached = strats.detached = strats.beforeCompile = strats.compiled = strats.beforeDestroy = strats.destroyed = strats.activate = function (parentVal, childVal) { - return childVal ? parentVal ? parentVal.concat(childVal) : isArray(childVal) ? childVal : [childVal] : parentVal; -}; - -/** - * Assets - * - * When a vm is present (instance creation), we need to do - * a three-way merge between constructor options, instance - * options and parent options. - */ - -function mergeAssets(parentVal, childVal) { - var res = Object.create(parentVal || null); - return childVal ? extend(res, guardArrayAssets(childVal)) : res; -} - -config._assetTypes.forEach(function (type) { - strats[type + 's'] = mergeAssets; -}); - -/** - * Events & Watchers. - * - * Events & watchers hashes should not overwrite one - * another, so we merge them as arrays. - */ - -strats.watch = strats.events = function (parentVal, childVal) { - if (!childVal) return parentVal; - if (!parentVal) return childVal; - var ret = {}; - extend(ret, parentVal); - for (var key in childVal) { - var parent = ret[key]; - var child = childVal[key]; - if (parent && !isArray(parent)) { - parent = [parent]; - } - ret[key] = parent ? parent.concat(child) : [child]; - } - return ret; -}; - -/** - * Other object hashes. - */ - -strats.props = strats.methods = strats.computed = function (parentVal, childVal) { - if (!childVal) return parentVal; - if (!parentVal) return childVal; - var ret = Object.create(null); - extend(ret, parentVal); - extend(ret, childVal); - return ret; -}; - -/** - * Default strategy. - */ - -var defaultStrat = function defaultStrat(parentVal, childVal) { - return childVal === undefined ? parentVal : childVal; -}; - -/** - * Make sure component options get converted to actual - * constructors. - * - * @param {Object} options - */ - -function guardComponents(options) { - if (options.components) { - var components = options.components = guardArrayAssets(options.components); - var ids = Object.keys(components); - var def; - if ('development' !== 'production') { - var map = options._componentNameMap = {}; - } - for (var i = 0, l = ids.length; i < l; i++) { - var key = ids[i]; - if (commonTagRE.test(key) || reservedTagRE.test(key)) { - 'development' !== 'production' && warn('Do not use built-in or reserved HTML elements as component ' + 'id: ' + key); - continue; - } - // record a all lowercase <-> kebab-case mapping for - // possible custom element case error warning - if ('development' !== 'production') { - map[key.replace(/-/g, '').toLowerCase()] = hyphenate(key); - } - def = components[key]; - if (isPlainObject(def)) { - components[key] = Vue.extend(def); - } - } - } -} - -/** - * Ensure all props option syntax are normalized into the - * Object-based format. - * - * @param {Object} options - */ - -function guardProps(options) { - var props = options.props; - var i, val; - if (isArray(props)) { - options.props = {}; - i = props.length; - while (i--) { - val = props[i]; - if (typeof val === 'string') { - options.props[val] = null; - } else if (val.name) { - options.props[val.name] = val; - } - } - } else if (isPlainObject(props)) { - var keys = Object.keys(props); - i = keys.length; - while (i--) { - val = props[keys[i]]; - if (typeof val === 'function') { - props[keys[i]] = { type: val }; - } - } - } -} - -/** - * Guard an Array-format assets option and converted it - * into the key-value Object format. - * - * @param {Object|Array} assets - * @return {Object} - */ - -function guardArrayAssets(assets) { - if (isArray(assets)) { - var res = {}; - var i = assets.length; - var asset; - while (i--) { - asset = assets[i]; - var id = typeof asset === 'function' ? asset.options && asset.options.name || asset.id : asset.name || asset.id; - if (!id) { - 'development' !== 'production' && warn('Array-syntax assets must provide a "name" or "id" field.'); - } else { - res[id] = asset; - } - } - return res; - } - return assets; -} - -/** - * Merge two option objects into a new one. - * Core utility used in both instantiation and inheritance. - * - * @param {Object} parent - * @param {Object} child - * @param {Vue} [vm] - if vm is present, indicates this is - * an instantiation merge. - */ - -function mergeOptions(parent, child, vm) { - guardComponents(child); - guardProps(child); - if ('development' !== 'production') { - if (child.propsData && !vm) { - warn('propsData can only be used as an instantiation option.'); - } - } - var options = {}; - var key; - if (child['extends']) { - parent = typeof child['extends'] === 'function' ? mergeOptions(parent, child['extends'].options, vm) : mergeOptions(parent, child['extends'], vm); - } - if (child.mixins) { - for (var i = 0, l = child.mixins.length; i < l; i++) { - var mixin = child.mixins[i]; - var mixinOptions = mixin.prototype instanceof Vue ? mixin.options : mixin; - parent = mergeOptions(parent, mixinOptions, vm); - } - } - for (key in parent) { - mergeField(key); - } - for (key in child) { - if (!hasOwn(parent, key)) { - mergeField(key); - } - } - function mergeField(key) { - var strat = strats[key] || defaultStrat; - options[key] = strat(parent[key], child[key], vm, key); - } - return options; -} - -/** - * Resolve an asset. - * This function is used because child instances need access - * to assets defined in its ancestor chain. - * - * @param {Object} options - * @param {String} type - * @param {String} id - * @param {Boolean} warnMissing - * @return {Object|Function} - */ - -function resolveAsset(options, type, id, warnMissing) { - /* istanbul ignore if */ - if (typeof id !== 'string') { - return; - } - var assets = options[type]; - var camelizedId; - var res = assets[id] || - // camelCase ID - assets[camelizedId = camelize(id)] || - // Pascal Case ID - assets[camelizedId.charAt(0).toUpperCase() + camelizedId.slice(1)]; - if ('development' !== 'production' && warnMissing && !res) { - warn('Failed to resolve ' + type.slice(0, -1) + ': ' + id, options); - } - return res; -} - -var uid$1 = 0; - -/** - * A dep is an observable that can have multiple - * directives subscribing to it. - * - * @constructor - */ -function Dep() { - this.id = uid$1++; - this.subs = []; -} - -// the current target watcher being evaluated. -// this is globally unique because there could be only one -// watcher being evaluated at any time. -Dep.target = null; - -/** - * Add a directive subscriber. - * - * @param {Directive} sub - */ - -Dep.prototype.addSub = function (sub) { - this.subs.push(sub); -}; - -/** - * Remove a directive subscriber. - * - * @param {Directive} sub - */ - -Dep.prototype.removeSub = function (sub) { - this.subs.$remove(sub); -}; - -/** - * Add self as a dependency to the target watcher. - */ - -Dep.prototype.depend = function () { - Dep.target.addDep(this); -}; - -/** - * Notify all subscribers of a new value. - */ - -Dep.prototype.notify = function () { - // stablize the subscriber list first - var subs = toArray(this.subs); - for (var i = 0, l = subs.length; i < l; i++) { - subs[i].update(); - } -}; - -var arrayProto = Array.prototype; -var arrayMethods = Object.create(arrayProto) - -/** - * Intercept mutating methods and emit events - */ - -;['push', 'pop', 'shift', 'unshift', 'splice', 'sort', 'reverse'].forEach(function (method) { - // cache original method - var original = arrayProto[method]; - def(arrayMethods, method, function mutator() { - // avoid leaking arguments: - // http://jsperf.com/closure-with-arguments - var i = arguments.length; - var args = new Array(i); - while (i--) { - args[i] = arguments[i]; - } - var result = original.apply(this, args); - var ob = this.__ob__; - var inserted; - switch (method) { - case 'push': - inserted = args; - break; - case 'unshift': - inserted = args; - break; - case 'splice': - inserted = args.slice(2); - break; - } - if (inserted) ob.observeArray(inserted); - // notify change - ob.dep.notify(); - return result; - }); -}); - -/** - * Swap the element at the given index with a new value - * and emits corresponding event. - * - * @param {Number} index - * @param {*} val - * @return {*} - replaced element - */ - -def(arrayProto, '$set', function $set(index, val) { - if (index >= this.length) { - this.length = Number(index) + 1; - } - return this.splice(index, 1, val)[0]; -}); - -/** - * Convenience method to remove the element at given index or target element reference. - * - * @param {*} item - */ - -def(arrayProto, '$remove', function $remove(item) { - /* istanbul ignore if */ - if (!this.length) return; - var index = indexOf(this, item); - if (index > -1) { - return this.splice(index, 1); - } -}); - -var arrayKeys = Object.getOwnPropertyNames(arrayMethods); - -/** - * By default, when a reactive property is set, the new value is - * also converted to become reactive. However in certain cases, e.g. - * v-for scope alias and props, we don't want to force conversion - * because the value may be a nested value under a frozen data structure. - * - * So whenever we want to set a reactive property without forcing - * conversion on the new value, we wrap that call inside this function. - */ - -var shouldConvert = true; - -function withoutConversion(fn) { - shouldConvert = false; - fn(); - shouldConvert = true; -} - -/** - * Observer class that are attached to each observed - * object. Once attached, the observer converts target - * object's property keys into getter/setters that - * collect dependencies and dispatches updates. - * - * @param {Array|Object} value - * @constructor - */ - -function Observer(value) { - this.value = value; - this.dep = new Dep(); - def(value, '__ob__', this); - if (isArray(value)) { - var augment = hasProto ? protoAugment : copyAugment; - augment(value, arrayMethods, arrayKeys); - this.observeArray(value); - } else { - this.walk(value); - } -} - -// Instance methods - -/** - * Walk through each property and convert them into - * getter/setters. This method should only be called when - * value type is Object. - * - * @param {Object} obj - */ - -Observer.prototype.walk = function (obj) { - var keys = Object.keys(obj); - for (var i = 0, l = keys.length; i < l; i++) { - this.convert(keys[i], obj[keys[i]]); - } -}; - -/** - * Observe a list of Array items. - * - * @param {Array} items - */ - -Observer.prototype.observeArray = function (items) { - for (var i = 0, l = items.length; i < l; i++) { - observe(items[i]); - } -}; - -/** - * Convert a property into getter/setter so we can emit - * the events when the property is accessed/changed. - * - * @param {String} key - * @param {*} val - */ - -Observer.prototype.convert = function (key, val) { - defineReactive(this.value, key, val); -}; - -/** - * Add an owner vm, so that when $set/$delete mutations - * happen we can notify owner vms to proxy the keys and - * digest the watchers. This is only called when the object - * is observed as an instance's root $data. - * - * @param {Vue} vm - */ - -Observer.prototype.addVm = function (vm) { - (this.vms || (this.vms = [])).push(vm); -}; - -/** - * Remove an owner vm. This is called when the object is - * swapped out as an instance's $data object. - * - * @param {Vue} vm - */ - -Observer.prototype.removeVm = function (vm) { - this.vms.$remove(vm); -}; - -// helpers - -/** - * Augment an target Object or Array by intercepting - * the prototype chain using __proto__ - * - * @param {Object|Array} target - * @param {Object} src - */ - -function protoAugment(target, src) { - /* eslint-disable no-proto */ - target.__proto__ = src; - /* eslint-enable no-proto */ -} - -/** - * Augment an target Object or Array by defining - * hidden properties. - * - * @param {Object|Array} target - * @param {Object} proto - */ - -function copyAugment(target, src, keys) { - for (var i = 0, l = keys.length; i < l; i++) { - var key = keys[i]; - def(target, key, src[key]); - } -} - -/** - * Attempt to create an observer instance for a value, - * returns the new observer if successfully observed, - * or the existing observer if the value already has one. - * - * @param {*} value - * @param {Vue} [vm] - * @return {Observer|undefined} - * @static - */ - -function observe(value, vm) { - if (!value || typeof value !== 'object') { - return; - } - var ob; - if (hasOwn(value, '__ob__') && value.__ob__ instanceof Observer) { - ob = value.__ob__; - } else if (shouldConvert && (isArray(value) || isPlainObject(value)) && Object.isExtensible(value) && !value._isVue) { - ob = new Observer(value); - } - if (ob && vm) { - ob.addVm(vm); - } - return ob; -} - -/** - * Define a reactive property on an Object. - * - * @param {Object} obj - * @param {String} key - * @param {*} val - */ - -function defineReactive(obj, key, val) { - var dep = new Dep(); - - var property = Object.getOwnPropertyDescriptor(obj, key); - if (property && property.configurable === false) { - return; - } - - // cater for pre-defined getter/setters - var getter = property && property.get; - var setter = property && property.set; - - var childOb = observe(val); - Object.defineProperty(obj, key, { - enumerable: true, - configurable: true, - get: function reactiveGetter() { - var value = getter ? getter.call(obj) : val; - if (Dep.target) { - dep.depend(); - if (childOb) { - childOb.dep.depend(); - } - if (isArray(value)) { - for (var e, i = 0, l = value.length; i < l; i++) { - e = value[i]; - e && e.__ob__ && e.__ob__.dep.depend(); - } - } - } - return value; - }, - set: function reactiveSetter(newVal) { - var value = getter ? getter.call(obj) : val; - if (newVal === value) { - return; - } - if (setter) { - setter.call(obj, newVal); - } else { - val = newVal; - } - childOb = observe(newVal); - dep.notify(); - } - }); -} - - - -var util = Object.freeze({ - defineReactive: defineReactive, - set: set, - del: del, - hasOwn: hasOwn, - isLiteral: isLiteral, - isReserved: isReserved, - _toString: _toString, - toNumber: toNumber, - toBoolean: toBoolean, - stripQuotes: stripQuotes, - camelize: camelize, - hyphenate: hyphenate, - classify: classify, - bind: bind, - toArray: toArray, - extend: extend, - isObject: isObject, - isPlainObject: isPlainObject, - def: def, - debounce: _debounce, - indexOf: indexOf, - cancellable: cancellable, - looseEqual: looseEqual, - isArray: isArray, - hasProto: hasProto, - inBrowser: inBrowser, - devtools: devtools, - isIE: isIE, - isIE9: isIE9, - isAndroid: isAndroid, - isIOS: isIOS, - get transitionProp () { return transitionProp; }, - get transitionEndEvent () { return transitionEndEvent; }, - get animationProp () { return animationProp; }, - get animationEndEvent () { return animationEndEvent; }, - nextTick: nextTick, - get _Set () { return _Set; }, - query: query, - inDoc: inDoc, - getAttr: getAttr, - getBindAttr: getBindAttr, - hasBindAttr: hasBindAttr, - before: before, - after: after, - remove: remove, - prepend: prepend, - replace: replace, - on: on, - off: off, - setClass: setClass, - addClass: addClass, - removeClass: removeClass, - extractContent: extractContent, - trimNode: trimNode, - isTemplate: isTemplate, - createAnchor: createAnchor, - findRef: findRef, - mapNodeRange: mapNodeRange, - removeNodeRange: removeNodeRange, - isFragment: isFragment, - getOuterHTML: getOuterHTML, - mergeOptions: mergeOptions, - resolveAsset: resolveAsset, - checkComponentAttr: checkComponentAttr, - commonTagRE: commonTagRE, - reservedTagRE: reservedTagRE, - get warn () { return warn; } -}); - -var uid = 0; - -function initMixin (Vue) { - /** - * The main init sequence. This is called for every - * instance, including ones that are created from extended - * constructors. - * - * @param {Object} options - this options object should be - * the result of merging class - * options and the options passed - * in to the constructor. - */ - - Vue.prototype._init = function (options) { - options = options || {}; - - this.$el = null; - this.$parent = options.parent; - this.$root = this.$parent ? this.$parent.$root : this; - this.$children = []; - this.$refs = {}; // child vm references - this.$els = {}; // element references - this._watchers = []; // all watchers as an array - this._directives = []; // all directives - - // a uid - this._uid = uid++; - - // a flag to avoid this being observed - this._isVue = true; - - // events bookkeeping - this._events = {}; // registered callbacks - this._eventsCount = {}; // for $broadcast optimization - - // fragment instance properties - this._isFragment = false; - this._fragment = // @type {DocumentFragment} - this._fragmentStart = // @type {Text|Comment} - this._fragmentEnd = null; // @type {Text|Comment} - - // lifecycle state - this._isCompiled = this._isDestroyed = this._isReady = this._isAttached = this._isBeingDestroyed = this._vForRemoving = false; - this._unlinkFn = null; - - // context: - // if this is a transcluded component, context - // will be the common parent vm of this instance - // and its host. - this._context = options._context || this.$parent; - - // scope: - // if this is inside an inline v-for, the scope - // will be the intermediate scope created for this - // repeat fragment. this is used for linking props - // and container directives. - this._scope = options._scope; - - // fragment: - // if this instance is compiled inside a Fragment, it - // needs to register itself as a child of that fragment - // for attach/detach to work properly. - this._frag = options._frag; - if (this._frag) { - this._frag.children.push(this); - } - - // push self into parent / transclusion host - if (this.$parent) { - this.$parent.$children.push(this); - } - - // merge options. - options = this.$options = mergeOptions(this.constructor.options, options, this); - - // set ref - this._updateRef(); - - // initialize data as empty object. - // it will be filled up in _initData(). - this._data = {}; - - // call init hook - this._callHook('init'); - - // initialize data observation and scope inheritance. - this._initState(); - - // setup event system and option events. - this._initEvents(); - - // call created hook - this._callHook('created'); - - // if `el` option is passed, start compilation. - if (options.el) { - this.$mount(options.el); - } - }; -} - -var __commonjs_global = typeof window !== 'undefined' ? window : typeof global !== 'undefined' ? global : undefined; -var primitives = (function (module, global) { -var exports = module.exports; -var names = ['Object', 'String', 'Boolean', 'Number', 'RegExp', 'Date', 'Array'] -var immutable = {string: 'String', boolean: 'Boolean', number: 'Number' } - -var primitives = names.map(getGlobal) -var protos = primitives.map(getProto) - -var protoReplacements = {} - -module.exports = Primitives - -function Primitives(context){ - if (this instanceof Primitives){ - this.context = context - for (var i=0;i this.maxIterations){ - throw new Error('Infinite loop detected - reached max iterations') - } -} -return module.exports; -})({exports:{}}); - -var index$1 = (function (module) { -var exports = module.exports; -module.exports = hoist - -function hoist(ast){ - - var parentStack = [] - var variables = [] - var functions = [] - - if (Array.isArray(ast)){ - - walkAll(ast) - prependScope(ast, variables, functions) - - } else { - walk(ast) - } - - return ast - - // walk through each node of a program of block statement - function walkAll(nodes){ - var result = null - for (var i=0;i - Copyright (C) 2012 Mathias Bynens - Copyright (C) 2012 Joost-Wim Boekesteijn - Copyright (C) 2012 Kris Kowal - Copyright (C) 2012 Yusuke Suzuki - Copyright (C) 2012 Arpad Borsos - Copyright (C) 2011 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 bitwise:true plusplus:true */ -/*global esprima:true, define:true, exports:true, window: true, -throwError: true, createLiteral: true, generateStatement: true, -parseAssignmentExpression: true, parseBlock: true, parseExpression: true, -parseFunctionDeclaration: true, parseFunctionExpression: true, -parseFunctionSourceElements: true, parseVariableIdentifier: true, -parseLeftHandSideExpression: true, -parseStatement: true, parseSourceElement: true */ - -(function (root, factory) { - 'use strict'; - - // Universal Module Definition (UMD) to support AMD, CommonJS/Node.js, - // Rhino, and plain browser loading. - 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, - Syntax, - PropertyKind, - Messages, - Regex, - source, - strict, - index, - lineNumber, - lineStart, - length, - buffer, - state, - extra; - - Token = { - BooleanLiteral: 1, - EOF: 2, - Identifier: 3, - Keyword: 4, - NullLiteral: 5, - NumericLiteral: 6, - Punctuator: 7, - StringLiteral: 8 - }; - - 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'; - - Syntax = { - AssignmentExpression: 'AssignmentExpression', - ArrayExpression: 'ArrayExpression', - BlockStatement: 'BlockStatement', - BinaryExpression: 'BinaryExpression', - BreakStatement: 'BreakStatement', - CallExpression: 'CallExpression', - CatchClause: 'CatchClause', - ConditionalExpression: 'ConditionalExpression', - ContinueStatement: 'ContinueStatement', - DoWhileStatement: 'DoWhileStatement', - DebuggerStatement: 'DebuggerStatement', - EmptyStatement: 'EmptyStatement', - ExpressionStatement: 'ExpressionStatement', - ForStatement: 'ForStatement', - ForInStatement: 'ForInStatement', - FunctionDeclaration: 'FunctionDeclaration', - FunctionExpression: 'FunctionExpression', - Identifier: 'Identifier', - IfStatement: 'IfStatement', - Literal: 'Literal', - LabeledStatement: 'LabeledStatement', - LogicalExpression: 'LogicalExpression', - MemberExpression: 'MemberExpression', - NewExpression: 'NewExpression', - ObjectExpression: 'ObjectExpression', - Program: 'Program', - Property: 'Property', - ReturnStatement: 'ReturnStatement', - SequenceExpression: 'SequenceExpression', - SwitchStatement: 'SwitchStatement', - SwitchCase: 'SwitchCase', - ThisExpression: 'ThisExpression', - ThrowStatement: 'ThrowStatement', - TryStatement: 'TryStatement', - UnaryExpression: 'UnaryExpression', - UpdateExpression: 'UpdateExpression', - VariableDeclaration: 'VariableDeclaration', - VariableDeclarator: 'VariableDeclarator', - WhileStatement: 'WhileStatement', - WithStatement: 'WithStatement' - }; - - PropertyKind = { - Data: 1, - Get: 2, - Set: 4 - }; - - // 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', - 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', - 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.', - StrictDuplicateProperty: 'Duplicate data property in object literal not allowed in strict mode', - AccessorDataProperty: 'Object literal may not have data and accessor property with the same name', - AccessorGetSet: 'Object literal may not have multiple get/set accessors with the same name', - 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' - }; - - // See also tools/generate-unicode-regex.py. - Regex = { - NonAsciiIdentifierStart: new 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- NonAsciiIdentifierPart: new 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\uffc7\uffca-\uffcf\uffd2-\uffd7\uffda-\uffdc]') - }; - - // 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) { - if (!condition) { - throw new Error('ASSERT: ' + message); - } - } - - function sliceSource(from, to) { - return source.slice(from, to); - } - - if (typeof 'esprima'[0] === 'undefined') { - sliceSource = function sliceArraySource(from, to) { - return source.slice(from, to).join(''); - }; - } - - function isDecimalDigit(ch) { - return '0123456789'.indexOf(ch) >= 0; - } - - function isHexDigit(ch) { - return '0123456789abcdefABCDEF'.indexOf(ch) >= 0; - } - - function isOctalDigit(ch) { - return '01234567'.indexOf(ch) >= 0; - } - - - // 7.2 White Space - - function isWhiteSpace(ch) { - return (ch === ' ') || (ch === '\u0009') || (ch === '\u000B') || - (ch === '\u000C') || (ch === '\u00A0') || - (ch.charCodeAt(0) >= 0x1680 && - '\u1680\u180E\u2000\u2001\u2002\u2003\u2004\u2005\u2006\u2007\u2008\u2009\u200A\u202F\u205F\u3000\uFEFF'.indexOf(ch) >= 0); - } - - // 7.3 Line Terminators - - function isLineTerminator(ch) { - return (ch === '\n' || ch === '\r' || ch === '\u2028' || ch === '\u2029'); - } - - // 7.6 Identifier Names and Identifiers - - function isIdentifierStart(ch) { - return (ch === '$') || (ch === '_') || (ch === '\\') || - (ch >= 'a' && ch <= 'z') || (ch >= 'A' && ch <= 'Z') || - ((ch.charCodeAt(0) >= 0x80) && Regex.NonAsciiIdentifierStart.test(ch)); - } - - function isIdentifierPart(ch) { - return (ch === '$') || (ch === '_') || (ch === '\\') || - (ch >= 'a' && ch <= 'z') || (ch >= 'A' && ch <= 'Z') || - ((ch >= '0') && (ch <= '9')) || - ((ch.charCodeAt(0) >= 0x80) && Regex.NonAsciiIdentifierPart.test(ch)); - } - - // 7.6.1.2 Future Reserved Words - - function isFutureReservedWord(id) { - switch (id) { - - // Future reserved words. - case 'class': - case 'enum': - case 'export': - case 'extends': - case 'import': - case 'super': - return true; - } - - return false; - } - - function isStrictModeReservedWord(id) { - switch (id) { - - // Strict Mode reserved words. - case 'implements': - case 'interface': - case 'package': - case 'private': - case 'protected': - case 'public': - case 'static': - case 'yield': - case 'let': - return true; - } - - return false; - } - - function isRestrictedWord(id) { - return id === 'eval' || id === 'arguments'; - } - - // 7.6.1.1 Keywords - - function isKeyword(id) { - var keyword = false; - switch (id.length) { - case 2: - keyword = (id === 'if') || (id === 'in') || (id === 'do'); - break; - case 3: - keyword = (id === 'var') || (id === 'for') || (id === 'new') || (id === 'try'); - break; - case 4: - keyword = (id === 'this') || (id === 'else') || (id === 'case') || (id === 'void') || (id === 'with'); - break; - case 5: - keyword = (id === 'while') || (id === 'break') || (id === 'catch') || (id === 'throw'); - break; - case 6: - keyword = (id === 'return') || (id === 'typeof') || (id === 'delete') || (id === 'switch'); - break; - case 7: - keyword = (id === 'default') || (id === 'finally'); - break; - case 8: - keyword = (id === 'function') || (id === 'continue') || (id === 'debugger'); - break; - case 10: - keyword = (id === 'instanceof'); - break; - } - - if (keyword) { - return true; - } - - switch (id) { - // Future reserved words. - // 'const' is specialized as Keyword in V8. - case 'const': - return true; - - // For compatiblity to SpiderMonkey and ES.next - case 'yield': - case 'let': - return true; - } - - if (strict && isStrictModeReservedWord(id)) { - return true; - } - - return isFutureReservedWord(id); - } - - // 7.4 Comments - - function skipComment() { - var ch, blockComment, lineComment; - - blockComment = false; - lineComment = false; - - while (index < length) { - ch = source[index]; - - if (lineComment) { - ch = source[index++]; - if (isLineTerminator(ch)) { - lineComment = false; - if (ch === '\r' && source[index] === '\n') { - ++index; - } - ++lineNumber; - lineStart = index; - } - } else if (blockComment) { - if (isLineTerminator(ch)) { - if (ch === '\r' && source[index + 1] === '\n') { - ++index; - } - ++lineNumber; - ++index; - lineStart = index; - if (index >= length) { - throwError({}, Messages.UnexpectedToken, 'ILLEGAL'); - } - } else { - ch = source[index++]; - if (index >= length) { - throwError({}, Messages.UnexpectedToken, 'ILLEGAL'); - } - if (ch === '*') { - ch = source[index]; - if (ch === '/') { - ++index; - blockComment = false; - } - } - } - } else if (ch === '/') { - ch = source[index + 1]; - if (ch === '/') { - index += 2; - lineComment = true; - } else if (ch === '*') { - index += 2; - blockComment = true; - if (index >= length) { - throwError({}, Messages.UnexpectedToken, 'ILLEGAL'); - } - } else { - break; - } - } else if (isWhiteSpace(ch)) { - ++index; - } else if (isLineTerminator(ch)) { - ++index; - if (ch === '\r' && source[index] === '\n') { - ++index; - } - ++lineNumber; - lineStart = index; - } 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 scanIdentifier() { - var ch, start, id, restore; - - ch = source[index]; - if (!isIdentifierStart(ch)) { - return; - } - - start = index; - if (ch === '\\') { - ++index; - if (source[index] !== 'u') { - return; - } - ++index; - restore = index; - ch = scanHexEscape('u'); - if (ch) { - if (ch === '\\' || !isIdentifierStart(ch)) { - return; - } - id = ch; - } else { - index = restore; - id = 'u'; - } - } else { - id = source[index++]; - } - - while (index < length) { - ch = source[index]; - if (!isIdentifierPart(ch)) { - break; - } - if (ch === '\\') { - ++index; - if (source[index] !== 'u') { - return; - } - ++index; - restore = index; - ch = scanHexEscape('u'); - if (ch) { - if (ch === '\\' || !isIdentifierPart(ch)) { - return; - } - id += ch; - } else { - index = restore; - id += 'u'; - } - } else { - id += source[index++]; - } - } - - // There is no keyword or literal with only one character. - // Thus, it must be an identifier. - if (id.length === 1) { - return { - type: Token.Identifier, - value: id, - lineNumber: lineNumber, - lineStart: lineStart, - range: [start, index] - }; - } - - if (isKeyword(id)) { - return { - type: Token.Keyword, - value: id, - lineNumber: lineNumber, - lineStart: lineStart, - range: [start, index] - }; - } - - // 7.8.1 Null Literals - - if (id === 'null') { - return { - type: Token.NullLiteral, - value: id, - lineNumber: lineNumber, - lineStart: lineStart, - range: [start, index] - }; - } - - // 7.8.2 Boolean Literals - - if (id === 'true' || id === 'false') { - return { - type: Token.BooleanLiteral, - value: id, - lineNumber: lineNumber, - lineStart: lineStart, - range: [start, index] - }; - } - - return { - type: Token.Identifier, - value: id, - lineNumber: lineNumber, - lineStart: lineStart, - range: [start, index] - }; - } - - // 7.7 Punctuators - - function scanPunctuator() { - var start = index, - ch1 = source[index], - ch2, - ch3, - ch4; - - // Check for most common single-character punctuators. - - if (ch1 === ';' || ch1 === '{' || ch1 === '}') { - ++index; - return { - type: Token.Punctuator, - value: ch1, - lineNumber: lineNumber, - lineStart: lineStart, - range: [start, index] - }; - } - - if (ch1 === ',' || ch1 === '(' || ch1 === ')') { - ++index; - return { - type: Token.Punctuator, - value: ch1, - lineNumber: lineNumber, - lineStart: lineStart, - range: [start, index] - }; - } - - // Dot (.) can also start a floating-point number, hence the need - // to check the next character. - - ch2 = source[index + 1]; - if (ch1 === '.' && !isDecimalDigit(ch2)) { - return { - type: Token.Punctuator, - value: source[index++], - lineNumber: lineNumber, - lineStart: lineStart, - range: [start, index] - }; - } - - // Peek more characters. - - ch3 = source[index + 2]; - ch4 = source[index + 3]; - - // 4-character punctuator: >>>= - - if (ch1 === '>' && ch2 === '>' && ch3 === '>') { - if (ch4 === '=') { - index += 4; - return { - type: Token.Punctuator, - value: '>>>=', - lineNumber: lineNumber, - lineStart: lineStart, - range: [start, index] - }; - } - } - - // 3-character punctuators: === !== >>> <<= >>= - - if (ch1 === '=' && ch2 === '=' && ch3 === '=') { - index += 3; - return { - type: Token.Punctuator, - value: '===', - lineNumber: lineNumber, - lineStart: lineStart, - range: [start, index] - }; - } - - if (ch1 === '!' && ch2 === '=' && ch3 === '=') { - index += 3; - return { - type: Token.Punctuator, - value: '!==', - lineNumber: lineNumber, - lineStart: lineStart, - range: [start, index] - }; - } - - if (ch1 === '>' && ch2 === '>' && ch3 === '>') { - index += 3; - return { - type: Token.Punctuator, - value: '>>>', - lineNumber: lineNumber, - lineStart: lineStart, - range: [start, index] - }; - } - - if (ch1 === '<' && ch2 === '<' && ch3 === '=') { - index += 3; - return { - type: Token.Punctuator, - value: '<<=', - lineNumber: lineNumber, - lineStart: lineStart, - range: [start, index] - }; - } - - if (ch1 === '>' && ch2 === '>' && ch3 === '=') { - index += 3; - return { - type: Token.Punctuator, - value: '>>=', - lineNumber: lineNumber, - lineStart: lineStart, - range: [start, index] - }; - } - - // 2-character punctuators: <= >= == != ++ -- << >> && || - // += -= *= %= &= |= ^= /= - - if (ch2 === '=') { - if ('<>=!+-*%&|^/'.indexOf(ch1) >= 0) { - index += 2; - return { - type: Token.Punctuator, - value: ch1 + ch2, - lineNumber: lineNumber, - lineStart: lineStart, - range: [start, index] - }; - } - } - - if (ch1 === ch2 && ('+-<>&|'.indexOf(ch1) >= 0)) { - if ('+-<>&|'.indexOf(ch2) >= 0) { - index += 2; - return { - type: Token.Punctuator, - value: ch1 + ch2, - lineNumber: lineNumber, - lineStart: lineStart, - range: [start, index] - }; - } - } - - // The remaining 1-character punctuators. - - if ('[]<>+-*%&|^!~?:=/'.indexOf(ch1) >= 0) { - return { - type: Token.Punctuator, - value: source[index++], - lineNumber: lineNumber, - lineStart: lineStart, - range: [start, index] - }; - } - } - - // 7.8.3 Numeric Literals - - function scanNumericLiteral() { - var number, start, ch; - - ch = source[index]; - assert(isDecimalDigit(ch) || (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'. - if (number === '0') { - if (ch === 'x' || ch === 'X') { - number += source[index++]; - while (index < length) { - ch = source[index]; - if (!isHexDigit(ch)) { - break; - } - number += source[index++]; - } - - if (number.length <= 2) { - // only 0x - throwError({}, Messages.UnexpectedToken, 'ILLEGAL'); - } - - if (index < length) { - ch = source[index]; - if (isIdentifierStart(ch)) { - throwError({}, Messages.UnexpectedToken, 'ILLEGAL'); - } - } - return { - type: Token.NumericLiteral, - value: parseInt(number, 16), - lineNumber: lineNumber, - lineStart: lineStart, - range: [start, index] - }; - } else if (isOctalDigit(ch)) { - number += source[index++]; - while (index < length) { - ch = source[index]; - if (!isOctalDigit(ch)) { - break; - } - number += source[index++]; - } - - if (index < length) { - ch = source[index]; - if (isIdentifierStart(ch) || isDecimalDigit(ch)) { - throwError({}, Messages.UnexpectedToken, 'ILLEGAL'); - } - } - return { - type: Token.NumericLiteral, - value: parseInt(number, 8), - octal: true, - lineNumber: lineNumber, - lineStart: lineStart, - range: [start, index] - }; - } - - // decimal number starts with '0' such as '09' is illegal. - if (isDecimalDigit(ch)) { - throwError({}, Messages.UnexpectedToken, 'ILLEGAL'); - } - } - - while (index < length) { - ch = source[index]; - if (!isDecimalDigit(ch)) { - break; - } - number += source[index++]; - } - } - - if (ch === '.') { - number += source[index++]; - while (index < length) { - ch = source[index]; - if (!isDecimalDigit(ch)) { - break; - } - number += source[index++]; - } - } - - if (ch === 'e' || ch === 'E') { - number += source[index++]; - - ch = source[index]; - if (ch === '+' || ch === '-') { - number += source[index++]; - } - - ch = source[index]; - if (isDecimalDigit(ch)) { - number += source[index++]; - while (index < length) { - ch = source[index]; - if (!isDecimalDigit(ch)) { - break; - } - number += source[index++]; - } - } else { - ch = 'character ' + ch; - if (index >= length) { - ch = ''; - } - throwError({}, Messages.UnexpectedToken, 'ILLEGAL'); - } - } - - if (index < length) { - ch = source[index]; - if (isIdentifierStart(ch)) { - throwError({}, Messages.UnexpectedToken, 'ILLEGAL'); - } - } - - return { - type: Token.NumericLiteral, - value: parseFloat(number), - lineNumber: lineNumber, - lineStart: lineStart, - range: [start, index] - }; - } - - // 7.8.4 String Literals - - function scanStringLiteral() { - var str = '', quote, start, ch, code, unescaped, restore, 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 (!isLineTerminator(ch)) { - switch (ch) { - case 'n': - str += '\n'; - break; - case 'r': - str += '\r'; - break; - case 't': - str += '\t'; - break; - case 'u': - case 'x': - restore = index; - unescaped = scanHexEscape(ch); - if (unescaped) { - str += unescaped; - } else { - index = restore; - str += ch; - } - break; - case 'b': - str += '\b'; - break; - case 'f': - str += '\f'; - break; - case 'v': - str += '\x0B'; - break; - - default: - if (isOctalDigit(ch)) { - code = '01234567'.indexOf(ch); - - // \0 is not octal escape sequence - if (code !== 0) { - octal = true; - } - - 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++]); - } - } - str += String.fromCharCode(code); - } else { - str += ch; - } - break; - } - } else { - ++lineNumber; - if (ch === '\r' && source[index] === '\n') { - ++index; - } - } - } else if (isLineTerminator(ch)) { - break; - } else { - str += ch; - } - } - - if (quote !== '') { - throwError({}, Messages.UnexpectedToken, 'ILLEGAL'); - } - - return { - type: Token.StringLiteral, - value: str, - octal: octal, - lineNumber: lineNumber, - lineStart: lineStart, - range: [start, index] - }; - } - - function scanRegExp() { - var str, ch, start, pattern, flags, value, classMarker = false, restore, terminated = false; - - buffer = null; - skipComment(); - - start = index; - ch = source[index]; - assert(ch === '/', 'Regular expression literal must start with a slash'); - str = source[index++]; - - while (index < length) { - ch = source[index++]; - str += ch; - if (ch === '\\') { - ch = source[index++]; - // ECMA-262 7.8.5 - if (isLineTerminator(ch)) { - throwError({}, Messages.UnterminatedRegExp); - } - str += ch; - } else if (classMarker) { - if (ch === ']') { - classMarker = false; - } - } else { - if (ch === '/') { - terminated = true; - break; - } else if (ch === '[') { - classMarker = true; - } else if (isLineTerminator(ch)) { - throwError({}, Messages.UnterminatedRegExp); - } - } - } - - if (!terminated) { - throwError({}, Messages.UnterminatedRegExp); - } - - // Exclude leading and trailing slash. - pattern = str.substr(1, str.length - 2); - - flags = ''; - while (index < length) { - ch = source[index]; - if (!isIdentifierPart(ch)) { - break; - } - - ++index; - if (ch === '\\' && index < length) { - ch = source[index]; - if (ch === 'u') { - ++index; - restore = index; - ch = scanHexEscape('u'); - if (ch) { - flags += ch; - str += '\\u'; - for (; restore < index; ++restore) { - str += source[restore]; - } - } else { - index = restore; - flags += 'u'; - str += '\\u'; - } - } else { - str += '\\'; - } - } else { - flags += ch; - str += ch; - } - } - - try { - value = new RegExp(pattern, flags); - } catch (e) { - throwError({}, Messages.InvalidRegExp); - } - - return { - literal: str, - value: value, - range: [start, index] - }; - } - - function isIdentifierName(token) { - return token.type === Token.Identifier || - token.type === Token.Keyword || - token.type === Token.BooleanLiteral || - token.type === Token.NullLiteral; - } - - function advance() { - var ch, token; - - skipComment(); - - if (index >= length) { - return { - type: Token.EOF, - lineNumber: lineNumber, - lineStart: lineStart, - range: [index, index] - }; - } - - token = scanPunctuator(); - if (typeof token !== 'undefined') { - return token; - } - - ch = source[index]; - - if (ch === '\'' || ch === '"') { - return scanStringLiteral(); - } - - if (ch === '.' || isDecimalDigit(ch)) { - return scanNumericLiteral(); - } - - token = scanIdentifier(); - if (typeof token !== 'undefined') { - return token; - } - - throwError({}, Messages.UnexpectedToken, 'ILLEGAL'); - } - - function lex() { - var token; - - if (buffer) { - index = buffer.range[1]; - lineNumber = buffer.lineNumber; - lineStart = buffer.lineStart; - token = buffer; - buffer = null; - return token; - } - - buffer = null; - return advance(); - } - - function lookahead() { - var pos, line, start; - - if (buffer !== null) { - return buffer; - } - - pos = index; - line = lineNumber; - start = lineStart; - buffer = advance(); - index = pos; - lineNumber = line; - lineStart = start; - - return buffer; - } - - // Return true if there is a line terminator before the next token. - - function peekLineTerminator() { - var pos, line, start, found; - - pos = index; - line = lineNumber; - start = lineStart; - skipComment(); - found = lineNumber !== line; - index = pos; - lineNumber = line; - lineStart = start; - - return found; - } - - // Throw an exception - - function throwError(token, messageFormat) { - var error, - args = Array.prototype.slice.call(arguments, 2), - msg = messageFormat.replace( - /%(\d)/g, - function (whole, index) { - return args[index] || ''; - } - ); - - if (typeof token.lineNumber === 'number') { - error = new Error('Line ' + token.lineNumber + ': ' + msg); - error.index = token.range[0]; - error.lineNumber = token.lineNumber; - error.column = token.range[0] - lineStart + 1; - } else { - error = new Error('Line ' + lineNumber + ': ' + msg); - error.index = index; - error.lineNumber = lineNumber; - error.column = index - lineStart + 1; - } - - throw error; - } - - function throwErrorTolerant() { - try { - throwError.apply(null, arguments); - } catch (e) { - if (extra.errors) { - extra.errors.push(e); - } else { - throw e; - } - } - } - - - // Throw an exception because of the token. - - function throwUnexpected(token) { - if (token.type === Token.EOF) { - throwError(token, Messages.UnexpectedEOS); - } - - if (token.type === Token.NumericLiteral) { - throwError(token, Messages.UnexpectedNumber); - } - - if (token.type === Token.StringLiteral) { - throwError(token, Messages.UnexpectedString); - } - - if (token.type === Token.Identifier) { - throwError(token, Messages.UnexpectedIdentifier); - } - - if (token.type === Token.Keyword) { - if (isFutureReservedWord(token.value)) { - throwError(token, Messages.UnexpectedReserved); - } else if (strict && isStrictModeReservedWord(token.value)) { - throwErrorTolerant(token, Messages.StrictReservedWord); - return; - } - throwError(token, Messages.UnexpectedToken, token.value); - } - - // BooleanLiteral, NullLiteral, or Punctuator. - throwError(token, Messages.UnexpectedToken, token.value); - } - - // 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) { - throwUnexpected(token); - } - } - - // 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) { - throwUnexpected(token); - } - } - - // Return true if the next token matches the specified punctuator. - - function match(value) { - var token = lookahead(); - return token.type === Token.Punctuator && token.value === value; - } - - // Return true if the next token matches the specified keyword - - function matchKeyword(keyword) { - var token = lookahead(); - return token.type === Token.Keyword && token.value === keyword; - } - - // Return true if the next token is an assignment operator - - function matchAssign() { - var token = lookahead(), - op = token.value; - - if (token.type !== Token.Punctuator) { - return false; - } - return op === '=' || - op === '*=' || - op === '/=' || - op === '%=' || - op === '+=' || - op === '-=' || - op === '<<=' || - op === '>>=' || - op === '>>>=' || - op === '&=' || - op === '^=' || - op === '|='; - } - - function consumeSemicolon() { - var token, line; - - // Catch the very common case first. - if (source[index] === ';') { - lex(); - return; - } - - line = lineNumber; - skipComment(); - if (lineNumber !== line) { - return; - } - - if (match(';')) { - lex(); - return; - } - - token = lookahead(); - if (token.type !== Token.EOF && !match('}')) { - throwUnexpected(token); - } - } - - // Return true if provided expression is LeftHandSideExpression - - function isLeftHandSide(expr) { - return expr.type === Syntax.Identifier || expr.type === Syntax.MemberExpression; - } - - // 11.1.4 Array Initialiser - - function parseArrayInitialiser() { - var elements = []; - - expect('['); - - while (!match(']')) { - if (match(',')) { - lex(); - elements.push(null); - } else { - elements.push(parseAssignmentExpression()); - - if (!match(']')) { - expect(','); - } - } - } - - expect(']'); - - return { - type: Syntax.ArrayExpression, - elements: elements - }; - } - - // 11.1.5 Object Initialiser - - function parsePropertyFunction(param, first) { - var previousStrict, body; - - previousStrict = strict; - body = parseFunctionSourceElements(); - if (first && strict && isRestrictedWord(param[0].name)) { - throwErrorTolerant(first, Messages.StrictParamName); - } - strict = previousStrict; - - return { - type: Syntax.FunctionExpression, - id: null, - params: param, - defaults: [], - body: body, - rest: null, - generator: false, - expression: false - }; - } - - function parseObjectPropertyKey() { - var token = lex(); - - // Note: This function is called only from parseObjectProperty(), where - // EOF and Punctuator tokens are already filtered out. - - if (token.type === Token.StringLiteral || token.type === Token.NumericLiteral) { - if (strict && token.octal) { - throwErrorTolerant(token, Messages.StrictOctalLiteral); - } - return createLiteral(token); - } - - return { - type: Syntax.Identifier, - name: token.value - }; - } - - function parseObjectProperty() { - var token, key, id, param; - - token = lookahead(); - - if (token.type === Token.Identifier) { - - id = parseObjectPropertyKey(); - - // Property Assignment: Getter and Setter. - - if (token.value === 'get' && !match(':')) { - key = parseObjectPropertyKey(); - expect('('); - expect(')'); - return { - type: Syntax.Property, - key: key, - value: parsePropertyFunction([]), - kind: 'get' - }; - } else if (token.value === 'set' && !match(':')) { - key = parseObjectPropertyKey(); - expect('('); - token = lookahead(); - if (token.type !== Token.Identifier) { - expect(')'); - throwErrorTolerant(token, Messages.UnexpectedToken, token.value); - return { - type: Syntax.Property, - key: key, - value: parsePropertyFunction([]), - kind: 'set' - }; - } else { - param = [ parseVariableIdentifier() ]; - expect(')'); - return { - type: Syntax.Property, - key: key, - value: parsePropertyFunction(param, token), - kind: 'set' - }; - } - } else { - expect(':'); - return { - type: Syntax.Property, - key: id, - value: parseAssignmentExpression(), - kind: 'init' - }; - } - } else if (token.type === Token.EOF || token.type === Token.Punctuator) { - throwUnexpected(token); - } else { - key = parseObjectPropertyKey(); - expect(':'); - return { - type: Syntax.Property, - key: key, - value: parseAssignmentExpression(), - kind: 'init' - }; - } - } - - function parseObjectInitialiser() { - var properties = [], property, name, kind, map = {}, toString = String; - - expect('{'); - - while (!match('}')) { - property = parseObjectProperty(); - - if (property.key.type === Syntax.Identifier) { - name = property.key.name; - } else { - name = toString(property.key.value); - } - kind = (property.kind === 'init') ? PropertyKind.Data : (property.kind === 'get') ? PropertyKind.Get : PropertyKind.Set; - if (Object.prototype.hasOwnProperty.call(map, name)) { - if (map[name] === PropertyKind.Data) { - if (strict && kind === PropertyKind.Data) { - throwErrorTolerant({}, Messages.StrictDuplicateProperty); - } else if (kind !== PropertyKind.Data) { - throwErrorTolerant({}, Messages.AccessorDataProperty); - } - } else { - if (kind === PropertyKind.Data) { - throwErrorTolerant({}, Messages.AccessorDataProperty); - } else if (map[name] & kind) { - throwErrorTolerant({}, Messages.AccessorGetSet); - } - } - map[name] |= kind; - } else { - map[name] = kind; - } - - properties.push(property); - - if (!match('}')) { - expect(','); - } - } - - expect('}'); - - return { - type: Syntax.ObjectExpression, - properties: properties - }; - } - - // 11.1.6 The Grouping Operator - - function parseGroupExpression() { - var expr; - - expect('('); - - expr = parseExpression(); - - expect(')'); - - return expr; - } - - - // 11.1 Primary Expressions - - function parsePrimaryExpression() { - var token = lookahead(), - type = token.type; - - if (type === Token.Identifier) { - return { - type: Syntax.Identifier, - name: lex().value - }; - } - - if (type === Token.StringLiteral || type === Token.NumericLiteral) { - if (strict && token.octal) { - throwErrorTolerant(token, Messages.StrictOctalLiteral); - } - return createLiteral(lex()); - } - - if (type === Token.Keyword) { - if (matchKeyword('this')) { - lex(); - return { - type: Syntax.ThisExpression - }; - } - - if (matchKeyword('function')) { - return parseFunctionExpression(); - } - } - - if (type === Token.BooleanLiteral) { - lex(); - token.value = (token.value === 'true'); - return createLiteral(token); - } - - if (type === Token.NullLiteral) { - lex(); - token.value = null; - return createLiteral(token); - } - - if (match('[')) { - return parseArrayInitialiser(); - } - - if (match('{')) { - return parseObjectInitialiser(); - } - - if (match('(')) { - return parseGroupExpression(); - } - - if (match('/') || match('/=')) { - return createLiteral(scanRegExp()); - } - - return throwUnexpected(lex()); - } - - // 11.2 Left-Hand-Side Expressions - - function parseArguments() { - var args = []; - - expect('('); - - if (!match(')')) { - while (index < length) { - args.push(parseAssignmentExpression()); - if (match(')')) { - break; - } - expect(','); - } - } - - expect(')'); - - return args; - } - - function parseNonComputedProperty() { - var token = lex(); - - if (!isIdentifierName(token)) { - throwUnexpected(token); - } - - return { - type: Syntax.Identifier, - name: token.value - }; - } - - function parseNonComputedMember() { - expect('.'); - - return parseNonComputedProperty(); - } - - function parseComputedMember() { - var expr; - - expect('['); - - expr = parseExpression(); - - expect(']'); - - return expr; - } - - function parseNewExpression() { - var expr; - - expectKeyword('new'); - - expr = { - type: Syntax.NewExpression, - callee: parseLeftHandSideExpression(), - 'arguments': [] - }; - - if (match('(')) { - expr['arguments'] = parseArguments(); - } - - return expr; - } - - function parseLeftHandSideExpressionAllowCall() { - var expr; - - expr = matchKeyword('new') ? parseNewExpression() : parsePrimaryExpression(); - - while (match('.') || match('[') || match('(')) { - if (match('(')) { - expr = { - type: Syntax.CallExpression, - callee: expr, - 'arguments': parseArguments() - }; - } else if (match('[')) { - expr = { - type: Syntax.MemberExpression, - computed: true, - object: expr, - property: parseComputedMember() - }; - } else { - expr = { - type: Syntax.MemberExpression, - computed: false, - object: expr, - property: parseNonComputedMember() - }; - } - } - - return expr; - } - - - function parseLeftHandSideExpression() { - var expr; - - expr = matchKeyword('new') ? parseNewExpression() : parsePrimaryExpression(); - - while (match('.') || match('[')) { - if (match('[')) { - expr = { - type: Syntax.MemberExpression, - computed: true, - object: expr, - property: parseComputedMember() - }; - } else { - expr = { - type: Syntax.MemberExpression, - computed: false, - object: expr, - property: parseNonComputedMember() - }; - } - } - - return expr; - } - - // 11.3 Postfix Expressions - - function parsePostfixExpression() { - var expr = parseLeftHandSideExpressionAllowCall(), token; - - token = lookahead(); - if (token.type !== Token.Punctuator) { - return expr; - } - - if ((match('++') || match('--')) && !peekLineTerminator()) { - // 11.3.1, 11.3.2 - if (strict && expr.type === Syntax.Identifier && isRestrictedWord(expr.name)) { - throwErrorTolerant({}, Messages.StrictLHSPostfix); - } - if (!isLeftHandSide(expr)) { - throwErrorTolerant({}, Messages.InvalidLHSInAssignment); - } - - expr = { - type: Syntax.UpdateExpression, - operator: lex().value, - argument: expr, - prefix: false - }; - } - - return expr; - } - - // 11.4 Unary Operators - - function parseUnaryExpression() { - var token, expr; - - token = lookahead(); - if (token.type !== Token.Punctuator && token.type !== Token.Keyword) { - return parsePostfixExpression(); - } - - if (match('++') || match('--')) { - token = lex(); - expr = parseUnaryExpression(); - // 11.4.4, 11.4.5 - if (strict && expr.type === Syntax.Identifier && isRestrictedWord(expr.name)) { - throwErrorTolerant({}, Messages.StrictLHSPrefix); - } - - if (!isLeftHandSide(expr)) { - throwErrorTolerant({}, Messages.InvalidLHSInAssignment); - } - - expr = { - type: Syntax.UpdateExpression, - operator: token.value, - argument: expr, - prefix: true - }; - return expr; - } - - if (match('+') || match('-') || match('~') || match('!')) { - expr = { - type: Syntax.UnaryExpression, - operator: lex().value, - argument: parseUnaryExpression(), - prefix: true - }; - return expr; - } - - if (matchKeyword('delete') || matchKeyword('void') || matchKeyword('typeof')) { - expr = { - type: Syntax.UnaryExpression, - operator: lex().value, - argument: parseUnaryExpression(), - prefix: true - }; - if (strict && expr.operator === 'delete' && expr.argument.type === Syntax.Identifier) { - throwErrorTolerant({}, Messages.StrictDelete); - } - return expr; - } - - return parsePostfixExpression(); - } - - // 11.5 Multiplicative Operators - - function parseMultiplicativeExpression() { - var expr = parseUnaryExpression(); - - while (match('*') || match('/') || match('%')) { - expr = { - type: Syntax.BinaryExpression, - operator: lex().value, - left: expr, - right: parseUnaryExpression() - }; - } - - return expr; - } - - // 11.6 Additive Operators - - function parseAdditiveExpression() { - var expr = parseMultiplicativeExpression(); - - while (match('+') || match('-')) { - expr = { - type: Syntax.BinaryExpression, - operator: lex().value, - left: expr, - right: parseMultiplicativeExpression() - }; - } - - return expr; - } - - // 11.7 Bitwise Shift Operators - - function parseShiftExpression() { - var expr = parseAdditiveExpression(); - - while (match('<<') || match('>>') || match('>>>')) { - expr = { - type: Syntax.BinaryExpression, - operator: lex().value, - left: expr, - right: parseAdditiveExpression() - }; - } - - return expr; - } - // 11.8 Relational Operators - - function parseRelationalExpression() { - var expr, previousAllowIn; - - previousAllowIn = state.allowIn; - state.allowIn = true; - - expr = parseShiftExpression(); - - while (match('<') || match('>') || match('<=') || match('>=') || (previousAllowIn && matchKeyword('in')) || matchKeyword('instanceof')) { - expr = { - type: Syntax.BinaryExpression, - operator: lex().value, - left: expr, - right: parseShiftExpression() - }; - } - - state.allowIn = previousAllowIn; - return expr; - } - - // 11.9 Equality Operators - - function parseEqualityExpression() { - var expr = parseRelationalExpression(); - - while (match('==') || match('!=') || match('===') || match('!==')) { - expr = { - type: Syntax.BinaryExpression, - operator: lex().value, - left: expr, - right: parseRelationalExpression() - }; - } - - return expr; - } - - // 11.10 Binary Bitwise Operators - - function parseBitwiseANDExpression() { - var expr = parseEqualityExpression(); - - while (match('&')) { - lex(); - expr = { - type: Syntax.BinaryExpression, - operator: '&', - left: expr, - right: parseEqualityExpression() - }; - } - - return expr; - } - - function parseBitwiseXORExpression() { - var expr = parseBitwiseANDExpression(); - - while (match('^')) { - lex(); - expr = { - type: Syntax.BinaryExpression, - operator: '^', - left: expr, - right: parseBitwiseANDExpression() - }; - } - - return expr; - } - - function parseBitwiseORExpression() { - var expr = parseBitwiseXORExpression(); - - while (match('|')) { - lex(); - expr = { - type: Syntax.BinaryExpression, - operator: '|', - left: expr, - right: parseBitwiseXORExpression() - }; - } - - return expr; - } - - // 11.11 Binary Logical Operators - - function parseLogicalANDExpression() { - var expr = parseBitwiseORExpression(); - - while (match('&&')) { - lex(); - expr = { - type: Syntax.LogicalExpression, - operator: '&&', - left: expr, - right: parseBitwiseORExpression() - }; - } - - return expr; - } - - function parseLogicalORExpression() { - var expr = parseLogicalANDExpression(); - - while (match('||')) { - lex(); - expr = { - type: Syntax.LogicalExpression, - operator: '||', - left: expr, - right: parseLogicalANDExpression() - }; - } - - return expr; - } - - // 11.12 Conditional Operator - - function parseConditionalExpression() { - var expr, previousAllowIn, consequent; - - expr = parseLogicalORExpression(); - - if (match('?')) { - lex(); - previousAllowIn = state.allowIn; - state.allowIn = true; - consequent = parseAssignmentExpression(); - state.allowIn = previousAllowIn; - expect(':'); - - expr = { - type: Syntax.ConditionalExpression, - test: expr, - consequent: consequent, - alternate: parseAssignmentExpression() - }; - } - - return expr; - } - - // 11.13 Assignment Operators - - function parseAssignmentExpression() { - var token, expr; - - token = lookahead(); - expr = parseConditionalExpression(); - - if (matchAssign()) { - // LeftHandSideExpression - if (!isLeftHandSide(expr)) { - throwErrorTolerant({}, Messages.InvalidLHSInAssignment); - } - - // 11.13.1 - if (strict && expr.type === Syntax.Identifier && isRestrictedWord(expr.name)) { - throwErrorTolerant(token, Messages.StrictLHSAssignment); - } - - expr = { - type: Syntax.AssignmentExpression, - operator: lex().value, - left: expr, - right: parseAssignmentExpression() - }; - } - - return expr; - } - - // 11.14 Comma Operator - - function parseExpression() { - var expr = parseAssignmentExpression(); - - if (match(',')) { - expr = { - type: Syntax.SequenceExpression, - expressions: [ expr ] - }; - - while (index < length) { - if (!match(',')) { - break; - } - lex(); - expr.expressions.push(parseAssignmentExpression()); - } - - } - return expr; - } - - // 12.1 Block - - function parseStatementList() { - var list = [], - statement; - - while (index < length) { - if (match('}')) { - break; - } - statement = parseSourceElement(); - if (typeof statement === 'undefined') { - break; - } - list.push(statement); - } - - return list; - } - - function parseBlock() { - var block; - - expect('{'); - - block = parseStatementList(); - - expect('}'); - - return { - type: Syntax.BlockStatement, - body: block - }; - } - - // 12.2 Variable Statement - - function parseVariableIdentifier() { - var token = lex(); - - if (token.type !== Token.Identifier) { - throwUnexpected(token); - } - - return { - type: Syntax.Identifier, - name: token.value - }; - } - - function parseVariableDeclaration(kind) { - var id = parseVariableIdentifier(), - init = null; - - // 12.2.1 - if (strict && isRestrictedWord(id.name)) { - throwErrorTolerant({}, Messages.StrictVarName); - } - - if (kind === 'const') { - expect('='); - init = parseAssignmentExpression(); - } else if (match('=')) { - lex(); - init = parseAssignmentExpression(); - } - - return { - type: Syntax.VariableDeclarator, - id: id, - init: init - }; - } - - function parseVariableDeclarationList(kind) { - var list = []; - - do { - list.push(parseVariableDeclaration(kind)); - if (!match(',')) { - break; - } - lex(); - } while (index < length); - - return list; - } - - function parseVariableStatement() { - var declarations; - - expectKeyword('var'); - - declarations = parseVariableDeclarationList(); - - consumeSemicolon(); - - return { - type: Syntax.VariableDeclaration, - declarations: declarations, - kind: 'var' - }; - } - - // kind may be `const` or `let` - // Both are experimental and not in the specification yet. - // see http://wiki.ecmascript.org/doku.php?id=harmony:const - // and http://wiki.ecmascript.org/doku.php?id=harmony:let - function parseConstLetDeclaration(kind) { - var declarations; - - expectKeyword(kind); - - declarations = parseVariableDeclarationList(kind); - - consumeSemicolon(); - - return { - type: Syntax.VariableDeclaration, - declarations: declarations, - kind: kind - }; - } - - // 12.3 Empty Statement - - function parseEmptyStatement() { - expect(';'); - - return { - type: Syntax.EmptyStatement - }; - } - - // 12.4 Expression Statement - - function parseExpressionStatement() { - var expr = parseExpression(); - - consumeSemicolon(); - - return { - type: Syntax.ExpressionStatement, - expression: expr - }; - } - - // 12.5 If statement - - function parseIfStatement() { - var test, consequent, alternate; - - expectKeyword('if'); - - expect('('); - - test = parseExpression(); - - expect(')'); - - consequent = parseStatement(); - - if (matchKeyword('else')) { - lex(); - alternate = parseStatement(); - } else { - alternate = null; - } - - return { - type: Syntax.IfStatement, - test: test, - consequent: consequent, - alternate: alternate - }; - } - - // 12.6 Iteration Statements - - function parseDoWhileStatement() { - 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 { - type: Syntax.DoWhileStatement, - body: body, - test: test - }; - } - - function parseWhileStatement() { - var test, body, oldInIteration; - - expectKeyword('while'); - - expect('('); - - test = parseExpression(); - - expect(')'); - - oldInIteration = state.inIteration; - state.inIteration = true; - - body = parseStatement(); - - state.inIteration = oldInIteration; - - return { - type: Syntax.WhileStatement, - test: test, - body: body - }; - } - - function parseForVariableDeclaration() { - var token = lex(); - - return { - type: Syntax.VariableDeclaration, - declarations: parseVariableDeclarationList(), - kind: token.value - }; - } - - function parseForStatement() { - var init, test, update, left, right, body, oldInIteration; - - init = test = update = null; - - expectKeyword('for'); - - expect('('); - - if (match(';')) { - lex(); - } else { - if (matchKeyword('var') || matchKeyword('let')) { - state.allowIn = false; - init = parseForVariableDeclaration(); - state.allowIn = true; - - if (init.declarations.length === 1 && matchKeyword('in')) { - lex(); - left = init; - right = parseExpression(); - init = null; - } - } else { - state.allowIn = false; - init = parseExpression(); - state.allowIn = true; - - if (matchKeyword('in')) { - // LeftHandSideExpression - if (!isLeftHandSide(init)) { - throwErrorTolerant({}, Messages.InvalidLHSInForIn); - } - - lex(); - left = init; - right = parseExpression(); - init = null; - } - } - - if (typeof left === 'undefined') { - expect(';'); - } - } - - if (typeof left === 'undefined') { - - if (!match(';')) { - test = parseExpression(); - } - expect(';'); - - if (!match(')')) { - update = parseExpression(); - } - } - - expect(')'); - - oldInIteration = state.inIteration; - state.inIteration = true; - - body = parseStatement(); - - state.inIteration = oldInIteration; - - if (typeof left === 'undefined') { - return { - type: Syntax.ForStatement, - init: init, - test: test, - update: update, - body: body - }; - } - - return { - type: Syntax.ForInStatement, - left: left, - right: right, - body: body, - each: false - }; - } - - // 12.7 The continue statement - - function parseContinueStatement() { - var token, label = null; - - expectKeyword('continue'); - - // Optimize the most common form: 'continue;'. - if (source[index] === ';') { - lex(); - - if (!state.inIteration) { - throwError({}, Messages.IllegalContinue); - } - - return { - type: Syntax.ContinueStatement, - label: null - }; - } - - if (peekLineTerminator()) { - if (!state.inIteration) { - throwError({}, Messages.IllegalContinue); - } - - return { - type: Syntax.ContinueStatement, - label: null - }; - } - - token = lookahead(); - if (token.type === Token.Identifier) { - label = parseVariableIdentifier(); - - if (!Object.prototype.hasOwnProperty.call(state.labelSet, label.name)) { - throwError({}, Messages.UnknownLabel, label.name); - } - } - - consumeSemicolon(); - - if (label === null && !state.inIteration) { - throwError({}, Messages.IllegalContinue); - } - - return { - type: Syntax.ContinueStatement, - label: label - }; - } - - // 12.8 The break statement - - function parseBreakStatement() { - var token, label = null; - - expectKeyword('break'); - - // Optimize the most common form: 'break;'. - if (source[index] === ';') { - lex(); - - if (!(state.inIteration || state.inSwitch)) { - throwError({}, Messages.IllegalBreak); - } - - return { - type: Syntax.BreakStatement, - label: null - }; - } - - if (peekLineTerminator()) { - if (!(state.inIteration || state.inSwitch)) { - throwError({}, Messages.IllegalBreak); - } - - return { - type: Syntax.BreakStatement, - label: null - }; - } - - token = lookahead(); - if (token.type === Token.Identifier) { - label = parseVariableIdentifier(); - - if (!Object.prototype.hasOwnProperty.call(state.labelSet, label.name)) { - throwError({}, Messages.UnknownLabel, label.name); - } - } - - consumeSemicolon(); - - if (label === null && !(state.inIteration || state.inSwitch)) { - throwError({}, Messages.IllegalBreak); - } - - return { - type: Syntax.BreakStatement, - label: label - }; - } - - // 12.9 The return statement - - function parseReturnStatement() { - var token, argument = null; - - expectKeyword('return'); - - if (!state.inFunctionBody) { - throwErrorTolerant({}, Messages.IllegalReturn); - } - - // 'return' followed by a space and an identifier is very common. - if (source[index] === ' ') { - if (isIdentifierStart(source[index + 1])) { - argument = parseExpression(); - consumeSemicolon(); - return { - type: Syntax.ReturnStatement, - argument: argument - }; - } - } - - if (peekLineTerminator()) { - return { - type: Syntax.ReturnStatement, - argument: null - }; - } - - if (!match(';')) { - token = lookahead(); - if (!match('}') && token.type !== Token.EOF) { - argument = parseExpression(); - } - } - - consumeSemicolon(); - - return { - type: Syntax.ReturnStatement, - argument: argument - }; - } - - // 12.10 The with statement - - function parseWithStatement() { - var object, body; - - if (strict) { - throwErrorTolerant({}, Messages.StrictModeWith); - } - - expectKeyword('with'); - - expect('('); - - object = parseExpression(); - - expect(')'); - - body = parseStatement(); - - return { - type: Syntax.WithStatement, - object: object, - body: body - }; - } - - // 12.10 The swith statement - - function parseSwitchCase() { - var test, - consequent = [], - statement; - - if (matchKeyword('default')) { - lex(); - test = null; - } else { - expectKeyword('case'); - test = parseExpression(); - } - expect(':'); - - while (index < length) { - if (match('}') || matchKeyword('default') || matchKeyword('case')) { - break; - } - statement = parseStatement(); - if (typeof statement === 'undefined') { - break; - } - consequent.push(statement); - } - - return { - type: Syntax.SwitchCase, - test: test, - consequent: consequent - }; - } - - function parseSwitchStatement() { - var discriminant, cases, clause, oldInSwitch, defaultFound; - - expectKeyword('switch'); - - expect('('); - - discriminant = parseExpression(); - - expect(')'); - - expect('{'); - - cases = []; - - if (match('}')) { - lex(); - return { - type: Syntax.SwitchStatement, - discriminant: discriminant, - cases: cases - }; - } - - oldInSwitch = state.inSwitch; - state.inSwitch = true; - defaultFound = false; - - while (index < 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 { - type: Syntax.SwitchStatement, - discriminant: discriminant, - cases: cases - }; - } - - // 12.13 The throw statement - - function parseThrowStatement() { - var argument; - - expectKeyword('throw'); - - if (peekLineTerminator()) { - throwError({}, Messages.NewlineAfterThrow); - } - - argument = parseExpression(); - - consumeSemicolon(); - - return { - type: Syntax.ThrowStatement, - argument: argument - }; - } - - // 12.14 The try statement - - function parseCatchClause() { - var param; - - expectKeyword('catch'); - - expect('('); - if (match(')')) { - throwUnexpected(lookahead()); - } - - param = parseVariableIdentifier(); - // 12.14.1 - if (strict && isRestrictedWord(param.name)) { - throwErrorTolerant({}, Messages.StrictCatchVariable); - } - - expect(')'); - - return { - type: Syntax.CatchClause, - param: param, - body: parseBlock() - }; - } - - function parseTryStatement() { - var block, handlers = [], finalizer = null; - - expectKeyword('try'); - - block = parseBlock(); - - if (matchKeyword('catch')) { - handlers.push(parseCatchClause()); - } - - if (matchKeyword('finally')) { - lex(); - finalizer = parseBlock(); - } - - if (handlers.length === 0 && !finalizer) { - throwError({}, Messages.NoCatchOrFinally); - } - - return { - type: Syntax.TryStatement, - block: block, - guardedHandlers: [], - handlers: handlers, - finalizer: finalizer - }; - } - - // 12.15 The debugger statement - - function parseDebuggerStatement() { - expectKeyword('debugger'); - - consumeSemicolon(); - - return { - type: Syntax.DebuggerStatement - }; - } - - // 12 Statements - - function parseStatement() { - var token = lookahead(), - expr, - labeledBody; - - if (token.type === Token.EOF) { - throwUnexpected(token); - } - - if (token.type === Token.Punctuator) { - switch (token.value) { - case ';': - return parseEmptyStatement(); - case '{': - return parseBlock(); - case '(': - return parseExpressionStatement(); - default: - break; - } - } - - if (token.type === Token.Keyword) { - switch (token.value) { - case 'break': - return parseBreakStatement(); - case 'continue': - return parseContinueStatement(); - case 'debugger': - return parseDebuggerStatement(); - case 'do': - return parseDoWhileStatement(); - case 'for': - return parseForStatement(); - case 'function': - return parseFunctionDeclaration(); - case 'if': - return parseIfStatement(); - case 'return': - return parseReturnStatement(); - case 'switch': - return parseSwitchStatement(); - case 'throw': - return parseThrowStatement(); - case 'try': - return parseTryStatement(); - case 'var': - return parseVariableStatement(); - case 'while': - return parseWhileStatement(); - case 'with': - return parseWithStatement(); - default: - break; - } - } - - expr = parseExpression(); - - // 12.12 Labelled Statements - if ((expr.type === Syntax.Identifier) && match(':')) { - lex(); - - if (Object.prototype.hasOwnProperty.call(state.labelSet, expr.name)) { - throwError({}, Messages.Redeclaration, 'Label', expr.name); - } - - state.labelSet[expr.name] = true; - labeledBody = parseStatement(); - delete state.labelSet[expr.name]; - - return { - type: Syntax.LabeledStatement, - label: expr, - body: labeledBody - }; - } - - consumeSemicolon(); - - return { - type: Syntax.ExpressionStatement, - expression: expr - }; - } - - // 13 Function Definition - - function parseFunctionSourceElements() { - var sourceElement, sourceElements = [], token, directive, firstRestricted, - oldLabelSet, oldInIteration, oldInSwitch, oldInFunctionBody; - - expect('{'); - - while (index < length) { - token = lookahead(); - if (token.type !== Token.StringLiteral) { - break; - } - - sourceElement = parseSourceElement(); - sourceElements.push(sourceElement); - if (sourceElement.expression.type !== Syntax.Literal) { - // this is not directive - break; - } - directive = sliceSource(token.range[0] + 1, token.range[1] - 1); - if (directive === 'use strict') { - strict = true; - if (firstRestricted) { - throwErrorTolerant(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 (index < length) { - if (match('}')) { - break; - } - sourceElement = parseSourceElement(); - if (typeof sourceElement === 'undefined') { - break; - } - sourceElements.push(sourceElement); - } - - expect('}'); - - state.labelSet = oldLabelSet; - state.inIteration = oldInIteration; - state.inSwitch = oldInSwitch; - state.inFunctionBody = oldInFunctionBody; - - return { - type: Syntax.BlockStatement, - body: sourceElements - }; - } - - function parseFunctionDeclaration() { - var id, param, params = [], body, token, stricted, firstRestricted, message, previousStrict, paramSet; - - expectKeyword('function'); - token = lookahead(); - id = parseVariableIdentifier(); - if (strict) { - if (isRestrictedWord(token.value)) { - throwErrorTolerant(token, Messages.StrictFunctionName); - } - } else { - if (isRestrictedWord(token.value)) { - firstRestricted = token; - message = Messages.StrictFunctionName; - } else if (isStrictModeReservedWord(token.value)) { - firstRestricted = token; - message = Messages.StrictReservedWord; - } - } - - expect('('); - - if (!match(')')) { - paramSet = {}; - while (index < length) { - token = lookahead(); - param = parseVariableIdentifier(); - if (strict) { - if (isRestrictedWord(token.value)) { - stricted = token; - message = Messages.StrictParamName; - } - if (Object.prototype.hasOwnProperty.call(paramSet, token.value)) { - stricted = token; - message = Messages.StrictParamDupe; - } - } else if (!firstRestricted) { - if (isRestrictedWord(token.value)) { - firstRestricted = token; - message = Messages.StrictParamName; - } else if (isStrictModeReservedWord(token.value)) { - firstRestricted = token; - message = Messages.StrictReservedWord; - } else if (Object.prototype.hasOwnProperty.call(paramSet, token.value)) { - firstRestricted = token; - message = Messages.StrictParamDupe; - } - } - params.push(param); - paramSet[param.name] = true; - if (match(')')) { - break; - } - expect(','); - } - } - - expect(')'); - - previousStrict = strict; - body = parseFunctionSourceElements(); - if (strict && firstRestricted) { - throwError(firstRestricted, message); - } - if (strict && stricted) { - throwErrorTolerant(stricted, message); - } - strict = previousStrict; - - return { - type: Syntax.FunctionDeclaration, - id: id, - params: params, - defaults: [], - body: body, - rest: null, - generator: false, - expression: false - }; - } - - function parseFunctionExpression() { - var token, id = null, stricted, firstRestricted, message, param, params = [], body, previousStrict, paramSet; - - expectKeyword('function'); - - if (!match('(')) { - token = lookahead(); - id = parseVariableIdentifier(); - if (strict) { - if (isRestrictedWord(token.value)) { - throwErrorTolerant(token, Messages.StrictFunctionName); - } - } else { - if (isRestrictedWord(token.value)) { - firstRestricted = token; - message = Messages.StrictFunctionName; - } else if (isStrictModeReservedWord(token.value)) { - firstRestricted = token; - message = Messages.StrictReservedWord; - } - } - } - - expect('('); - - if (!match(')')) { - paramSet = {}; - while (index < length) { - token = lookahead(); - param = parseVariableIdentifier(); - if (strict) { - if (isRestrictedWord(token.value)) { - stricted = token; - message = Messages.StrictParamName; - } - if (Object.prototype.hasOwnProperty.call(paramSet, token.value)) { - stricted = token; - message = Messages.StrictParamDupe; - } - } else if (!firstRestricted) { - if (isRestrictedWord(token.value)) { - firstRestricted = token; - message = Messages.StrictParamName; - } else if (isStrictModeReservedWord(token.value)) { - firstRestricted = token; - message = Messages.StrictReservedWord; - } else if (Object.prototype.hasOwnProperty.call(paramSet, token.value)) { - firstRestricted = token; - message = Messages.StrictParamDupe; - } - } - params.push(param); - paramSet[param.name] = true; - if (match(')')) { - break; - } - expect(','); - } - } - - expect(')'); - - previousStrict = strict; - body = parseFunctionSourceElements(); - if (strict && firstRestricted) { - throwError(firstRestricted, message); - } - if (strict && stricted) { - throwErrorTolerant(stricted, message); - } - strict = previousStrict; - - return { - type: Syntax.FunctionExpression, - id: id, - params: params, - defaults: [], - body: body, - rest: null, - generator: false, - expression: false - }; - } - - // 14 Program - - function parseSourceElement() { - var token = lookahead(); - - if (token.type === Token.Keyword) { - switch (token.value) { - case 'const': - case 'let': - return parseConstLetDeclaration(token.value); - case 'function': - return parseFunctionDeclaration(); - default: - return parseStatement(); - } - } - - if (token.type !== Token.EOF) { - return parseStatement(); - } - } - - function parseSourceElements() { - var sourceElement, sourceElements = [], token, directive, firstRestricted; - - while (index < length) { - token = lookahead(); - if (token.type !== Token.StringLiteral) { - break; - } - - sourceElement = parseSourceElement(); - sourceElements.push(sourceElement); - if (sourceElement.expression.type !== Syntax.Literal) { - // this is not directive - break; - } - directive = sliceSource(token.range[0] + 1, token.range[1] - 1); - if (directive === 'use strict') { - strict = true; - if (firstRestricted) { - throwErrorTolerant(firstRestricted, Messages.StrictOctalLiteral); - } - } else { - if (!firstRestricted && token.octal) { - firstRestricted = token; - } - } - } - - while (index < length) { - sourceElement = parseSourceElement(); - if (typeof sourceElement === 'undefined') { - break; - } - sourceElements.push(sourceElement); - } - return sourceElements; - } - - function parseProgram() { - var program; - strict = false; - program = { - type: Syntax.Program, - body: parseSourceElements() - }; - return program; - } - - // The following functions are needed only when the option to preserve - // the comments is active. - - function addComment(type, value, start, end, loc) { - assert(typeof start === 'number', 'Comment must have valid position'); - - // Because the way the actual token is scanned, often the comments - // (if any) are skipped twice during the lexical analysis. - // Thus, we need to skip adding a comment if the comment array already - // handled it. - if (extra.comments.length > 0) { - if (extra.comments[extra.comments.length - 1].range[1] > start) { - return; - } - } - - extra.comments.push({ - type: type, - value: value, - range: [start, end], - loc: loc - }); - } - - function scanComment() { - var comment, ch, loc, start, blockComment, lineComment; - - comment = ''; - blockComment = false; - lineComment = false; - - while (index < length) { - ch = source[index]; - - if (lineComment) { - ch = source[index++]; - if (isLineTerminator(ch)) { - loc.end = { - line: lineNumber, - column: index - lineStart - 1 - }; - lineComment = false; - addComment('Line', comment, start, index - 1, loc); - if (ch === '\r' && source[index] === '\n') { - ++index; - } - ++lineNumber; - lineStart = index; - comment = ''; - } else if (index >= length) { - lineComment = false; - comment += ch; - loc.end = { - line: lineNumber, - column: length - lineStart - }; - addComment('Line', comment, start, length, loc); - } else { - comment += ch; - } - } else if (blockComment) { - if (isLineTerminator(ch)) { - if (ch === '\r' && source[index + 1] === '\n') { - ++index; - comment += '\r\n'; - } else { - comment += ch; - } - ++lineNumber; - ++index; - lineStart = index; - if (index >= length) { - throwError({}, Messages.UnexpectedToken, 'ILLEGAL'); - } - } else { - ch = source[index++]; - if (index >= length) { - throwError({}, Messages.UnexpectedToken, 'ILLEGAL'); - } - comment += ch; - if (ch === '*') { - ch = source[index]; - if (ch === '/') { - comment = comment.substr(0, comment.length - 1); - blockComment = false; - ++index; - loc.end = { - line: lineNumber, - column: index - lineStart - }; - addComment('Block', comment, start, index, loc); - comment = ''; - } - } - } - } else if (ch === '/') { - ch = source[index + 1]; - if (ch === '/') { - loc = { - start: { - line: lineNumber, - column: index - lineStart - } - }; - start = index; - index += 2; - lineComment = true; - if (index >= length) { - loc.end = { - line: lineNumber, - column: index - lineStart - }; - lineComment = false; - addComment('Line', comment, start, index, loc); - } - } else if (ch === '*') { - start = index; - index += 2; - blockComment = true; - loc = { - start: { - line: lineNumber, - column: index - lineStart - 2 - } - }; - if (index >= length) { - throwError({}, Messages.UnexpectedToken, 'ILLEGAL'); - } - } else { - break; - } - } else if (isWhiteSpace(ch)) { - ++index; - } else if (isLineTerminator(ch)) { - ++index; - if (ch === '\r' && source[index] === '\n') { - ++index; - } - ++lineNumber; - lineStart = index; - } else { - break; - } - } - } - - function filterCommentLocation() { - var i, entry, comment, comments = []; - - for (i = 0; i < extra.comments.length; ++i) { - entry = extra.comments[i]; - comment = { - type: entry.type, - value: entry.value - }; - if (extra.range) { - comment.range = entry.range; - } - if (extra.loc) { - comment.loc = entry.loc; - } - comments.push(comment); - } - - extra.comments = comments; - } - - function collectToken() { - var start, loc, token, range, value; - - skipComment(); - start = index; - loc = { - start: { - line: lineNumber, - column: index - lineStart - } - }; - - token = extra.advance(); - loc.end = { - line: lineNumber, - column: index - lineStart - }; - - if (token.type !== Token.EOF) { - range = [token.range[0], token.range[1]]; - value = sliceSource(token.range[0], token.range[1]); - extra.tokens.push({ - type: TokenName[token.type], - value: value, - range: range, - loc: loc - }); - } - - return token; - } - - function collectRegex() { - var pos, loc, regex, token; - - skipComment(); - - pos = index; - loc = { - start: { - line: lineNumber, - column: index - lineStart - } - }; - - regex = extra.scanRegExp(); - loc.end = { - line: lineNumber, - column: index - lineStart - }; - - // 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, - range: [pos, index], - loc: loc - }); - - return regex; - } - - 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 (extra.range) { - token.range = entry.range; - } - if (extra.loc) { - token.loc = entry.loc; - } - tokens.push(token); - } - - extra.tokens = tokens; - } - - function createLiteral(token) { - return { - type: Syntax.Literal, - value: token.value - }; - } - - function createRawLiteral(token) { - return { - type: Syntax.Literal, - value: token.value, - raw: sliceSource(token.range[0], token.range[1]) - }; - } - - function createLocationMarker() { - var marker = {}; - - marker.range = [index, index]; - marker.loc = { - start: { - line: lineNumber, - column: index - lineStart - }, - end: { - line: lineNumber, - column: index - lineStart - } - }; - - marker.end = function () { - this.range[1] = index; - this.loc.end.line = lineNumber; - this.loc.end.column = index - lineStart; - }; - - marker.applyGroup = function (node) { - if (extra.range) { - node.groupRange = [this.range[0], this.range[1]]; - } - if (extra.loc) { - node.groupLoc = { - start: { - line: this.loc.start.line, - column: this.loc.start.column - }, - end: { - line: this.loc.end.line, - column: this.loc.end.column - } - }; - } - }; - - marker.apply = function (node) { - if (extra.range) { - node.range = [this.range[0], this.range[1]]; - } - if (extra.loc) { - node.loc = { - start: { - line: this.loc.start.line, - column: this.loc.start.column - }, - end: { - line: this.loc.end.line, - column: this.loc.end.column - } - }; - } - }; - - return marker; - } - - function trackGroupExpression() { - var marker, expr; - - skipComment(); - marker = createLocationMarker(); - expect('('); - - expr = parseExpression(); - - expect(')'); - - marker.end(); - marker.applyGroup(expr); - - return expr; - } - - function trackLeftHandSideExpression() { - var marker, expr; - - skipComment(); - marker = createLocationMarker(); - - expr = matchKeyword('new') ? parseNewExpression() : parsePrimaryExpression(); - - while (match('.') || match('[')) { - if (match('[')) { - expr = { - type: Syntax.MemberExpression, - computed: true, - object: expr, - property: parseComputedMember() - }; - marker.end(); - marker.apply(expr); - } else { - expr = { - type: Syntax.MemberExpression, - computed: false, - object: expr, - property: parseNonComputedMember() - }; - marker.end(); - marker.apply(expr); - } - } - - return expr; - } - - function trackLeftHandSideExpressionAllowCall() { - var marker, expr; - - skipComment(); - marker = createLocationMarker(); - - expr = matchKeyword('new') ? parseNewExpression() : parsePrimaryExpression(); - - while (match('.') || match('[') || match('(')) { - if (match('(')) { - expr = { - type: Syntax.CallExpression, - callee: expr, - 'arguments': parseArguments() - }; - marker.end(); - marker.apply(expr); - } else if (match('[')) { - expr = { - type: Syntax.MemberExpression, - computed: true, - object: expr, - property: parseComputedMember() - }; - marker.end(); - marker.apply(expr); - } else { - expr = { - type: Syntax.MemberExpression, - computed: false, - object: expr, - property: parseNonComputedMember() - }; - marker.end(); - marker.apply(expr); - } - } - - return expr; - } - - function filterGroup(node) { - var n, i, entry; - - n = (Object.prototype.toString.apply(node) === '[object Array]') ? [] : {}; - for (i in node) { - if (node.hasOwnProperty(i) && i !== 'groupRange' && i !== 'groupLoc') { - entry = node[i]; - if (entry === null || typeof entry !== 'object' || entry instanceof RegExp) { - n[i] = entry; - } else { - n[i] = filterGroup(entry); - } - } - } - return n; - } - - function wrapTrackingFunction(range, loc) { - - return function (parseFunction) { - - function isBinary(node) { - return node.type === Syntax.LogicalExpression || - node.type === Syntax.BinaryExpression; - } - - function visit(node) { - var start, end; - - if (isBinary(node.left)) { - visit(node.left); - } - if (isBinary(node.right)) { - visit(node.right); - } - - if (range) { - if (node.left.groupRange || node.right.groupRange) { - start = node.left.groupRange ? node.left.groupRange[0] : node.left.range[0]; - end = node.right.groupRange ? node.right.groupRange[1] : node.right.range[1]; - node.range = [start, end]; - } else if (typeof node.range === 'undefined') { - start = node.left.range[0]; - end = node.right.range[1]; - node.range = [start, end]; - } - } - if (loc) { - if (node.left.groupLoc || node.right.groupLoc) { - start = node.left.groupLoc ? node.left.groupLoc.start : node.left.loc.start; - end = node.right.groupLoc ? node.right.groupLoc.end : node.right.loc.end; - node.loc = { - start: start, - end: end - }; - } else if (typeof node.loc === 'undefined') { - node.loc = { - start: node.left.loc.start, - end: node.right.loc.end - }; - } - } - } - - return function () { - var marker, node; - - skipComment(); - - marker = createLocationMarker(); - node = parseFunction.apply(null, arguments); - marker.end(); - - if (range && typeof node.range === 'undefined') { - marker.apply(node); - } - - if (loc && typeof node.loc === 'undefined') { - marker.apply(node); - } - - if (isBinary(node)) { - visit(node); - } - - return node; - }; - }; - } - - function patch() { - - var wrapTracking; - - if (extra.comments) { - extra.skipComment = skipComment; - skipComment = scanComment; - } - - if (extra.raw) { - extra.createLiteral = createLiteral; - createLiteral = createRawLiteral; - } - - if (extra.range || extra.loc) { - - extra.parseGroupExpression = parseGroupExpression; - extra.parseLeftHandSideExpression = parseLeftHandSideExpression; - extra.parseLeftHandSideExpressionAllowCall = parseLeftHandSideExpressionAllowCall; - parseGroupExpression = trackGroupExpression; - parseLeftHandSideExpression = trackLeftHandSideExpression; - parseLeftHandSideExpressionAllowCall = trackLeftHandSideExpressionAllowCall; - - wrapTracking = wrapTrackingFunction(extra.range, extra.loc); - - extra.parseAdditiveExpression = parseAdditiveExpression; - extra.parseAssignmentExpression = parseAssignmentExpression; - extra.parseBitwiseANDExpression = parseBitwiseANDExpression; - extra.parseBitwiseORExpression = parseBitwiseORExpression; - extra.parseBitwiseXORExpression = parseBitwiseXORExpression; - extra.parseBlock = parseBlock; - extra.parseFunctionSourceElements = parseFunctionSourceElements; - extra.parseCatchClause = parseCatchClause; - extra.parseComputedMember = parseComputedMember; - extra.parseConditionalExpression = parseConditionalExpression; - extra.parseConstLetDeclaration = parseConstLetDeclaration; - extra.parseEqualityExpression = parseEqualityExpression; - extra.parseExpression = parseExpression; - extra.parseForVariableDeclaration = parseForVariableDeclaration; - extra.parseFunctionDeclaration = parseFunctionDeclaration; - extra.parseFunctionExpression = parseFunctionExpression; - extra.parseLogicalANDExpression = parseLogicalANDExpression; - extra.parseLogicalORExpression = parseLogicalORExpression; - extra.parseMultiplicativeExpression = parseMultiplicativeExpression; - extra.parseNewExpression = parseNewExpression; - extra.parseNonComputedProperty = parseNonComputedProperty; - extra.parseObjectProperty = parseObjectProperty; - extra.parseObjectPropertyKey = parseObjectPropertyKey; - extra.parsePostfixExpression = parsePostfixExpression; - extra.parsePrimaryExpression = parsePrimaryExpression; - extra.parseProgram = parseProgram; - extra.parsePropertyFunction = parsePropertyFunction; - extra.parseRelationalExpression = parseRelationalExpression; - extra.parseStatement = parseStatement; - extra.parseShiftExpression = parseShiftExpression; - extra.parseSwitchCase = parseSwitchCase; - extra.parseUnaryExpression = parseUnaryExpression; - extra.parseVariableDeclaration = parseVariableDeclaration; - extra.parseVariableIdentifier = parseVariableIdentifier; - - parseAdditiveExpression = wrapTracking(extra.parseAdditiveExpression); - parseAssignmentExpression = wrapTracking(extra.parseAssignmentExpression); - parseBitwiseANDExpression = wrapTracking(extra.parseBitwiseANDExpression); - parseBitwiseORExpression = wrapTracking(extra.parseBitwiseORExpression); - parseBitwiseXORExpression = wrapTracking(extra.parseBitwiseXORExpression); - parseBlock = wrapTracking(extra.parseBlock); - parseFunctionSourceElements = wrapTracking(extra.parseFunctionSourceElements); - parseCatchClause = wrapTracking(extra.parseCatchClause); - parseComputedMember = wrapTracking(extra.parseComputedMember); - parseConditionalExpression = wrapTracking(extra.parseConditionalExpression); - parseConstLetDeclaration = wrapTracking(extra.parseConstLetDeclaration); - parseEqualityExpression = wrapTracking(extra.parseEqualityExpression); - parseExpression = wrapTracking(extra.parseExpression); - parseForVariableDeclaration = wrapTracking(extra.parseForVariableDeclaration); - parseFunctionDeclaration = wrapTracking(extra.parseFunctionDeclaration); - parseFunctionExpression = wrapTracking(extra.parseFunctionExpression); - parseLeftHandSideExpression = wrapTracking(parseLeftHandSideExpression); - parseLogicalANDExpression = wrapTracking(extra.parseLogicalANDExpression); - parseLogicalORExpression = wrapTracking(extra.parseLogicalORExpression); - parseMultiplicativeExpression = wrapTracking(extra.parseMultiplicativeExpression); - parseNewExpression = wrapTracking(extra.parseNewExpression); - parseNonComputedProperty = wrapTracking(extra.parseNonComputedProperty); - parseObjectProperty = wrapTracking(extra.parseObjectProperty); - parseObjectPropertyKey = wrapTracking(extra.parseObjectPropertyKey); - parsePostfixExpression = wrapTracking(extra.parsePostfixExpression); - parsePrimaryExpression = wrapTracking(extra.parsePrimaryExpression); - parseProgram = wrapTracking(extra.parseProgram); - parsePropertyFunction = wrapTracking(extra.parsePropertyFunction); - parseRelationalExpression = wrapTracking(extra.parseRelationalExpression); - parseStatement = wrapTracking(extra.parseStatement); - parseShiftExpression = wrapTracking(extra.parseShiftExpression); - parseSwitchCase = wrapTracking(extra.parseSwitchCase); - parseUnaryExpression = wrapTracking(extra.parseUnaryExpression); - parseVariableDeclaration = wrapTracking(extra.parseVariableDeclaration); - parseVariableIdentifier = wrapTracking(extra.parseVariableIdentifier); - } - - if (typeof extra.tokens !== 'undefined') { - extra.advance = advance; - extra.scanRegExp = scanRegExp; - - advance = collectToken; - scanRegExp = collectRegex; - } - } - - function unpatch() { - if (typeof extra.skipComment === 'function') { - skipComment = extra.skipComment; - } - - if (extra.raw) { - createLiteral = extra.createLiteral; - } - - if (extra.range || extra.loc) { - parseAdditiveExpression = extra.parseAdditiveExpression; - parseAssignmentExpression = extra.parseAssignmentExpression; - parseBitwiseANDExpression = extra.parseBitwiseANDExpression; - parseBitwiseORExpression = extra.parseBitwiseORExpression; - parseBitwiseXORExpression = extra.parseBitwiseXORExpression; - parseBlock = extra.parseBlock; - parseFunctionSourceElements = extra.parseFunctionSourceElements; - parseCatchClause = extra.parseCatchClause; - parseComputedMember = extra.parseComputedMember; - parseConditionalExpression = extra.parseConditionalExpression; - parseConstLetDeclaration = extra.parseConstLetDeclaration; - parseEqualityExpression = extra.parseEqualityExpression; - parseExpression = extra.parseExpression; - parseForVariableDeclaration = extra.parseForVariableDeclaration; - parseFunctionDeclaration = extra.parseFunctionDeclaration; - parseFunctionExpression = extra.parseFunctionExpression; - parseGroupExpression = extra.parseGroupExpression; - parseLeftHandSideExpression = extra.parseLeftHandSideExpression; - parseLeftHandSideExpressionAllowCall = extra.parseLeftHandSideExpressionAllowCall; - parseLogicalANDExpression = extra.parseLogicalANDExpression; - parseLogicalORExpression = extra.parseLogicalORExpression; - parseMultiplicativeExpression = extra.parseMultiplicativeExpression; - parseNewExpression = extra.parseNewExpression; - parseNonComputedProperty = extra.parseNonComputedProperty; - parseObjectProperty = extra.parseObjectProperty; - parseObjectPropertyKey = extra.parseObjectPropertyKey; - parsePrimaryExpression = extra.parsePrimaryExpression; - parsePostfixExpression = extra.parsePostfixExpression; - parseProgram = extra.parseProgram; - parsePropertyFunction = extra.parsePropertyFunction; - parseRelationalExpression = extra.parseRelationalExpression; - parseStatement = extra.parseStatement; - parseShiftExpression = extra.parseShiftExpression; - parseSwitchCase = extra.parseSwitchCase; - parseUnaryExpression = extra.parseUnaryExpression; - parseVariableDeclaration = extra.parseVariableDeclaration; - parseVariableIdentifier = extra.parseVariableIdentifier; - } - - if (typeof extra.scanRegExp === 'function') { - advance = extra.advance; - scanRegExp = extra.scanRegExp; - } - } - - function stringToArray(str) { - var length = str.length, - result = [], - i; - for (i = 0; i < length; ++i) { - result[i] = str.charAt(i); - } - return result; - } - - 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; - length = source.length; - buffer = null; - state = { - allowIn: true, - labelSet: {}, - inFunctionBody: false, - inIteration: false, - inSwitch: false - }; - - extra = {}; - if (typeof options !== 'undefined') { - extra.range = (typeof options.range === 'boolean') && options.range; - extra.loc = (typeof options.loc === 'boolean') && options.loc; - extra.raw = (typeof options.raw === 'boolean') && options.raw; - 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 (length > 0) { - if (typeof source[0] === 'undefined') { - // Try first to convert to a string. This is good as fast path - // for old IE which understands string indexing for string - // literals only and not for string object. - if (code instanceof String) { - source = code.valueOf(); - } - - // Force accessing the characters via an array. - if (typeof source[0] === 'undefined') { - source = stringToArray(code); - } - } - } - - patch(); - try { - program = parseProgram(); - if (typeof extra.comments !== 'undefined') { - filterCommentLocation(); - program.comments = extra.comments; - } - if (typeof extra.tokens !== 'undefined') { - filterTokenLocation(); - program.tokens = extra.tokens; - } - if (typeof extra.errors !== 'undefined') { - program.errors = extra.errors; - } - if (extra.range || extra.loc) { - program.body = filterGroup(program.body); - } - } catch (e) { - throw e; - } finally { - unpatch(); - extra = {}; - } - - return program; - } - - // Sync with package.json. - exports.version = '1.0.4'; - - exports.parse = parse; - - // Deep copy. - 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 : */ -return module.exports; -})({exports:{}}); - -var index$1$1 = (function (module, global) { -var exports = module.exports; -var parse = esprima.parse -var hoist = index$1 - -var InfiniteChecker = infiniteChecker -var Primitives = primitives - -module.exports = safeEval -module.exports.FunctionFactory = FunctionFactory -module.exports.Function = FunctionFactory() - -var maxIterations = 1000000 - -// 'eval' with a controlled environment -function safeEval(src, parentContext){ - var tree = prepareAst(src) - var context = Object.create(parentContext || {}) - return finalValue(evaluateAst(tree, context)) -} - -// create a 'Function' constructor for a controlled environment -function FunctionFactory(parentContext){ - var context = Object.create(parentContext || {}) - return function Function() { - // normalize arguments array - var args = Array.prototype.slice.call(arguments) - var src = args.slice(-1)[0] - args = args.slice(0,-1) - if (typeof src === 'string'){ - //HACK: esprima doesn't like returns outside functions - src = parse('function a(){' + src + '}').body[0].body - } - var tree = prepareAst(src) - return getFunction(tree, args, context) - } -} - -// takes an AST or js source and returns an AST -function prepareAst(src){ - var tree = (typeof src === 'string') ? parse(src) : src - return hoist(tree) -} - -// evaluate an AST in the given context -function evaluateAst(tree, context){ - - var safeFunction = FunctionFactory(context) - var primitives = Primitives(context) - - // block scoped context for catch (ex) and 'let' - var blockContext = context - - return walk(tree) - - // recursively walk every node in an array - function walkAll(nodes){ - var result = undefined - for (var i=0;i': return l > r - case '>=': return l >= r - case '|': return l | r - case '&': return l & r - case '^': return l ^ r - case 'instanceof': return l instanceof r - default: return unsupportedExpression(node) - } - - case 'LogicalExpression': - switch(node.operator) { - case '&&': return walk(node.left) && walk(node.right) - case '||': return walk(node.left) || walk(node.right) - default: return unsupportedExpression(node) - } - - case 'ThisExpression': - return blockContext['this'] - - case 'Identifier': - if (node.name === 'undefined'){ - return undefined - } else if (hasProperty(blockContext, node.name, primitives)){ - return finalValue(blockContext[node.name]) - } else { - throw new ReferenceError(node.name + ' is not defined') - } - - case 'CallExpression': - var args = node.arguments.map(function(arg){ - return walk(arg) - }) - var object = null - var target = walk(node.callee) - - if (node.callee.type === 'MemberExpression'){ - object = walk(node.callee.object) - } - return target.apply(object, args) - - case 'MemberExpression': - var obj = walk(node.object) - if (node.computed){ - var prop = walk(node.property) - } else { - var prop = node.property.name - } - obj = primitives.getPropertyObject(obj, prop) - return checkValue(obj[prop]); - - case 'ConditionalExpression': - var val = walk(node.test) - return val ? walk(node.consequent) : walk(node.alternate) - - case 'EmptyStatement': - return - - default: - return unsupportedExpression(node) - } - } - - // safely retrieve a value - function checkValue(value){ - if (value === Function$1){ - value = safeFunction - } - return finalValue(value) - } - - // block scope context control - function enterBlock(){ - blockContext = Object.create(blockContext) - } - function leaveBlock(){ - blockContext = Object.getPrototypeOf(blockContext) - } - - // set a value in the specified context if allowed - function setValue(object, left, right, operator){ - var name = null - - if (left.type === 'Identifier'){ - name = left.name - // handle parent context shadowing - object = objectForKey(object, name, primitives) - } else if (left.type === 'MemberExpression'){ - if (left.computed){ - name = walk(left.property) - } else { - name = left.property.name - } - object = walk(left.object) - } - - // stop built in properties from being able to be changed - if (canSetProperty(object, name, primitives)){ - switch(operator) { - case undefined: return object[name] = walk(right) - case '=': return object[name] = walk(right) - case '+=': return object[name] += walk(right) - case '-=': return object[name] -= walk(right) - case '++': return object[name]++ - case '--': return object[name]-- - } - } - - } - -} - -// when an unsupported expression is encountered, throw an error -function unsupportedExpression(node){ - console.error(node) - var err = new Error('Unsupported expression: ' + node.type) - err.node = node - throw err -} - -// walk a provided object's prototypal hierarchy to retrieve an inherited object -function objectForKey(object, key, primitives){ - var proto = primitives.getPrototypeOf(object) - if (!proto || hasOwnProperty(object, key)){ - return object - } else { - return objectForKey(proto, key, primitives) - } -} - -function hasProperty(object, key, primitives){ - var proto = primitives.getPrototypeOf(object) - var hasOwn = hasOwnProperty(object, key) - if (object[key] !== undefined){ - return true - } else if (!proto || hasOwn){ - return hasOwn - } else { - return hasProperty(proto, key, primitives) - } -} - -function hasOwnProperty(object, key){ - return Object.prototype.hasOwnProperty.call(object, key) -} - -function propertyIsEnumerable(object, key){ - return Object.prototype.propertyIsEnumerable.call(object, key) -} - - -// determine if we have write access to a property -function canSetProperty(object, property, primitives){ - if (property === '__proto__' || primitives.isPrimitive(object)){ - return false - } else if (object != null){ - - if (hasOwnProperty(object, property)){ - if (propertyIsEnumerable(object, property)){ - return true - } else { - return false - } - } else { - return canSetProperty(primitives.getPrototypeOf(object), property, primitives) - } - - } else { - return true - } -} - -// generate a function with specified context -function getFunction(body, params, parentContext){ - return function(){ - var context = Object.create(parentContext) - if (this == global){ - context['this'] = null - } else { - context['this'] = this - } - // normalize arguments array - var args = Array.prototype.slice.call(arguments) - context['arguments'] = arguments - args.forEach(function(arg,idx){ - var param = params[idx] - if (param){ - context[param] = arg - } - }) - var result = evaluateAst(body, context) - - if (result instanceof ReturnValue){ - return result.value - } - } -} - -function finalValue(value){ - if (value instanceof ReturnValue){ - return value.value - } - return value -} - -// get the name of an identifier -function getName(identifier){ - return identifier.name -} - -// a ReturnValue struct for differentiating between expression result and return statement -function ReturnValue(type, value){ - this.type = type - this.value = value -} -return module.exports; -})({exports:{}}, __commonjs_global); - -var Function$1 = index$1$1.Function; - -var pathCache = new Cache(1000); - -// actions -var APPEND = 0; -var PUSH = 1; -var INC_SUB_PATH_DEPTH = 2; -var PUSH_SUB_PATH = 3; - -// states -var BEFORE_PATH = 0; -var IN_PATH = 1; -var BEFORE_IDENT = 2; -var IN_IDENT = 3; -var IN_SUB_PATH = 4; -var IN_SINGLE_QUOTE = 5; -var IN_DOUBLE_QUOTE = 6; -var AFTER_PATH = 7; -var ERROR = 8; - -var pathStateMachine = []; - -pathStateMachine[BEFORE_PATH] = { - 'ws': [BEFORE_PATH], - 'ident': [IN_IDENT, APPEND], - '[': [IN_SUB_PATH], - 'eof': [AFTER_PATH] -}; - -pathStateMachine[IN_PATH] = { - 'ws': [IN_PATH], - '.': [BEFORE_IDENT], - '[': [IN_SUB_PATH], - 'eof': [AFTER_PATH] -}; - -pathStateMachine[BEFORE_IDENT] = { - 'ws': [BEFORE_IDENT], - 'ident': [IN_IDENT, APPEND] -}; - -pathStateMachine[IN_IDENT] = { - 'ident': [IN_IDENT, APPEND], - '0': [IN_IDENT, APPEND], - 'number': [IN_IDENT, APPEND], - 'ws': [IN_PATH, PUSH], - '.': [BEFORE_IDENT, PUSH], - '[': [IN_SUB_PATH, PUSH], - 'eof': [AFTER_PATH, PUSH] -}; - -pathStateMachine[IN_SUB_PATH] = { - "'": [IN_SINGLE_QUOTE, APPEND], - '"': [IN_DOUBLE_QUOTE, APPEND], - '[': [IN_SUB_PATH, INC_SUB_PATH_DEPTH], - ']': [IN_PATH, PUSH_SUB_PATH], - 'eof': ERROR, - 'else': [IN_SUB_PATH, APPEND] -}; - -pathStateMachine[IN_SINGLE_QUOTE] = { - "'": [IN_SUB_PATH, APPEND], - 'eof': ERROR, - 'else': [IN_SINGLE_QUOTE, APPEND] -}; - -pathStateMachine[IN_DOUBLE_QUOTE] = { - '"': [IN_SUB_PATH, APPEND], - 'eof': ERROR, - 'else': [IN_DOUBLE_QUOTE, APPEND] -}; - -/** - * Determine the type of a character in a keypath. - * - * @param {Char} ch - * @return {String} type - */ - -function getPathCharType(ch) { - if (ch === undefined) { - return 'eof'; - } - - var code = ch.charCodeAt(0); - - switch (code) { - case 0x5B: // [ - case 0x5D: // ] - case 0x2E: // . - case 0x22: // " - case 0x27: // ' - case 0x30: - // 0 - return ch; - - case 0x5F: // _ - case 0x24: - // $ - return 'ident'; - - case 0x20: // Space - case 0x09: // Tab - case 0x0A: // Newline - case 0x0D: // Return - case 0xA0: // No-break space - case 0xFEFF: // Byte Order Mark - case 0x2028: // Line Separator - case 0x2029: - // Paragraph Separator - return 'ws'; - } - - // a-z, A-Z - if (code >= 0x61 && code <= 0x7A || code >= 0x41 && code <= 0x5A) { - return 'ident'; - } - - // 1-9 - if (code >= 0x31 && code <= 0x39) { - return 'number'; - } - - return 'else'; -} - -/** - * Format a subPath, return its plain form if it is - * a literal string or number. Otherwise prepend the - * dynamic indicator (*). - * - * @param {String} path - * @return {String} - */ - -function formatSubPath(path) { - var trimmed = path.trim(); - // invalid leading 0 - if (path.charAt(0) === '0' && isNaN(path)) { - return false; - } - return isLiteral(trimmed) ? stripQuotes(trimmed) : '*' + trimmed; -} - -/** - * Parse a string path into an array of segments - * - * @param {String} path - * @return {Array|undefined} - */ - -function parse(path) { - var keys = []; - var index = -1; - var mode = BEFORE_PATH; - var subPathDepth = 0; - var c, newChar, key, type, transition, action, typeMap; - - var actions = []; - - actions[PUSH] = function () { - if (key !== undefined) { - keys.push(key); - key = undefined; - } - }; - - actions[APPEND] = function () { - if (key === undefined) { - key = newChar; - } else { - key += newChar; - } - }; - - actions[INC_SUB_PATH_DEPTH] = function () { - actions[APPEND](); - subPathDepth++; - }; - - actions[PUSH_SUB_PATH] = function () { - if (subPathDepth > 0) { - subPathDepth--; - mode = IN_SUB_PATH; - actions[APPEND](); - } else { - subPathDepth = 0; - key = formatSubPath(key); - if (key === false) { - return false; - } else { - actions[PUSH](); - } - } - }; - - function maybeUnescapeQuote() { - var nextChar = path[index + 1]; - if (mode === IN_SINGLE_QUOTE && nextChar === "'" || mode === IN_DOUBLE_QUOTE && nextChar === '"') { - index++; - newChar = '\\' + nextChar; - actions[APPEND](); - return true; - } - } - - while (mode != null) { - index++; - c = path[index]; - - if (c === '\\' && maybeUnescapeQuote()) { - continue; - } - - type = getPathCharType(c); - typeMap = pathStateMachine[mode]; - transition = typeMap[type] || typeMap['else'] || ERROR; - - if (transition === ERROR) { - return; // parse error - } - - mode = transition[0]; - action = actions[transition[1]]; - if (action) { - newChar = transition[2]; - newChar = newChar === undefined ? c : newChar; - if (action() === false) { - return; - } - } - - if (mode === AFTER_PATH) { - keys.raw = path; - return keys; - } - } -} - -/** - * External parse that check for a cache hit first - * - * @param {String} path - * @return {Array|undefined} - */ - -function parsePath(path) { - var hit = pathCache.get(path); - if (!hit) { - hit = parse(path); - if (hit) { - pathCache.put(path, hit); - } - } - return hit; -} - -/** - * Get from an object from a path string - * - * @param {Object} obj - * @param {String} path - */ - -function getPath(obj, path) { - return parseExpression$1(path).get(obj); -} - -/** - * Warn against setting non-existent root path on a vm. - */ - -var warnNonExistent; -if ('development' !== 'production') { - warnNonExistent = function (path, vm) { - warn('You are setting a non-existent path "' + path.raw + '" ' + 'on a vm instance. Consider pre-initializing the property ' + 'with the "data" option for more reliable reactivity ' + 'and better performance.', vm); - }; -} - -/** - * Set on an object from a path - * - * @param {Object} obj - * @param {String | Array} path - * @param {*} val - */ - -function setPath(obj, path, val) { - var original = obj; - if (typeof path === 'string') { - path = parse(path); - } - if (!path || !isObject(obj)) { - return false; - } - var last, key; - for (var i = 0, l = path.length; i < l; i++) { - last = obj; - key = path[i]; - if (key.charAt(0) === '*') { - key = parseExpression$1(key.slice(1)).get.call(original, original); - } - if (i < l - 1) { - obj = obj[key]; - if (!isObject(obj)) { - obj = {}; - if ('development' !== 'production' && last._isVue) { - warnNonExistent(path, last); - } - set(last, key, obj); - } - } else { - if (isArray(obj)) { - obj.$set(key, val); - } else if (key in obj) { - obj[key] = val; - } else { - if ('development' !== 'production' && obj._isVue) { - warnNonExistent(path, obj); - } - set(obj, key, val); - } - } - } - return true; -} - -var path = Object.freeze({ - parsePath: parsePath, - getPath: getPath, - setPath: setPath -}); - -var expressionCache = new Cache(1000); - -var allowedKeywords = 'Math,Date,this,true,false,null,undefined,Infinity,NaN,' + 'isNaN,isFinite,decodeURI,decodeURIComponent,encodeURI,' + 'encodeURIComponent,parseInt,parseFloat'; -var allowedKeywordsRE = new RegExp('^(' + allowedKeywords.replace(/,/g, '\\b|') + '\\b)'); - -// keywords that don't make sense inside expressions -var improperKeywords = 'break,case,class,catch,const,continue,debugger,default,' + 'delete,do,else,export,extends,finally,for,function,if,' + 'import,in,instanceof,let,return,super,switch,throw,try,' + 'var,while,with,yield,enum,await,implements,package,' + 'protected,static,interface,private,public'; -var improperKeywordsRE = new RegExp('^(' + improperKeywords.replace(/,/g, '\\b|') + '\\b)'); - -var wsRE = /\s/g; -var newlineRE = /\n/g; -var saveRE = /[\{,]\s*[\w\$_]+\s*:|('(?:[^'\\]|\\.)*'|"(?:[^"\\]|\\.)*"|`(?:[^`\\]|\\.)*\$\{|\}(?:[^`\\"']|\\.)*`|`(?:[^`\\]|\\.)*`)|new |typeof |void /g; -var restoreRE = /"(\d+)"/g; -var pathTestRE = /^[A-Za-z_$][\w$]*(?:\.[A-Za-z_$][\w$]*|\['.*?'\]|\[".*?"\]|\[\d+\]|\[[A-Za-z_$][\w$]*\])*$/; -var identRE = /[^\w$\.](?:[A-Za-z_$][\w$]*)/g; -var literalValueRE$1 = /^(?:true|false|null|undefined|Infinity|NaN)$/; - -function noop() {} - -/** - * Save / Rewrite / Restore - * - * When rewriting paths found in an expression, it is - * possible for the same letter sequences to be found in - * strings and Object literal property keys. Therefore we - * remove and store these parts in a temporary array, and - * restore them after the path rewrite. - */ - -var saved = []; - -/** - * Save replacer - * - * The save regex can match two possible cases: - * 1. An opening object literal - * 2. A string - * If matched as a plain string, we need to escape its - * newlines, since the string needs to be preserved when - * generating the function body. - * - * @param {String} str - * @param {String} isString - str if matched as a string - * @return {String} - placeholder with index - */ - -function save(str, isString) { - var i = saved.length; - saved[i] = isString ? str.replace(newlineRE, '\\n') : str; - return '"' + i + '"'; -} - -/** - * Path rewrite replacer - * - * @param {String} raw - * @return {String} - */ - -function rewrite(raw) { - var c = raw.charAt(0); - var path = raw.slice(1); - if (allowedKeywordsRE.test(path)) { - return raw; - } else { - path = path.indexOf('"') > -1 ? path.replace(restoreRE, restore) : path; - return c + 'scope.' + path; - } -} - -/** - * Restore replacer - * - * @param {String} str - * @param {String} i - matched save index - * @return {String} - */ - -function restore(str, i) { - return saved[i]; -} - -/** - * Rewrite an expression, prefixing all path accessors with - * `scope.` and generate getter/setter functions. - * - * @param {String} exp - * @return {Function} - */ - -function compileGetter(exp) { - if (improperKeywordsRE.test(exp)) { - 'development' !== 'production' && warn('Avoid using reserved keywords in expression: ' + exp); - } - // reset state - saved.length = 0; - // save strings and object literal keys - var body = exp.replace(saveRE, save).replace(wsRE, ''); - // rewrite all paths - // pad 1 space here because the regex matches 1 extra char - body = (' ' + body).replace(identRE, rewrite).replace(restoreRE, restore); - return makeGetterFn(body); -} - -/** - * Build a getter function. Requires eval. - * - * We isolate the try/catch so it doesn't affect the - * optimization of the parse function when it is not called. - * - * @param {String} body - * @return {Function|undefined} - */ - -function makeGetterFn(body) { - try { - var fn = index$1$1.Function('scope', 'Math', 'return ' + body); - return function (scope) { - return fn.call(this, scope, Math); - }; - } catch (e) { - if ('development' !== 'production') { - /* istanbul ignore if */ - if (e.toString().match(/unsafe-eval|CSP/)) { - warn('It seems you are using the default build of Vue.js in an environment ' + 'with Content Security Policy that prohibits unsafe-eval. ' + 'Use the CSP-compliant build instead: ' + 'http://vuejs.org/guide/installation.html#CSP-compliant-build'); - } else { - warn('Invalid expression. ' + 'Generated function body: ' + body); - } - } - return noop; - } -} - -/** - * Compile a setter function for the expression. - * - * @param {String} exp - * @return {Function|undefined} - */ - -function compileSetter(exp) { - var path = parsePath(exp); - if (path) { - return function (scope, val) { - setPath(scope, path, val); - }; - } else { - 'development' !== 'production' && warn('Invalid setter expression: ' + exp); - } -} - -/** - * Parse an expression into re-written getter/setters. - * - * @param {String} exp - * @param {Boolean} needSet - * @return {Function} - */ - -function parseExpression$1(exp, needSet) { - exp = exp.trim(); - // try cache - var hit = expressionCache.get(exp); - if (hit) { - if (needSet && !hit.set) { - hit.set = compileSetter(hit.exp); - } - return hit; - } - var res = { exp: exp }; - res.get = isSimplePath(exp) && exp.indexOf('[') < 0 - // optimized super simple getter - ? makeGetterFn('scope.' + exp) - // dynamic getter - : compileGetter(exp); - if (needSet) { - res.set = compileSetter(exp); - } - expressionCache.put(exp, res); - return res; -} - -/** - * Check if an expression is a simple path. - * - * @param {String} exp - * @return {Boolean} - */ - -function isSimplePath(exp) { - return pathTestRE.test(exp) && - // don't treat literal values as paths - !literalValueRE$1.test(exp) && - // Math constants e.g. Math.PI, Math.E etc. - exp.slice(0, 5) !== 'Math.'; -} - -var expression = Object.freeze({ - parseExpression: parseExpression$1, - isSimplePath: isSimplePath -}); - -// we have two separate queues: one for directive updates -// and one for user watcher registered via $watch(). -// we want to guarantee directive updates to be called -// before user watchers so that when user watchers are -// triggered, the DOM would have already been in updated -// state. - -var queue = []; -var userQueue = []; -var has = {}; -var circular = {}; -var waiting = false; - -/** - * Reset the batcher's state. - */ - -function resetBatcherState() { - queue.length = 0; - userQueue.length = 0; - has = {}; - circular = {}; - waiting = false; -} - -/** - * Flush both queues and run the watchers. - */ - -function flushBatcherQueue() { - var _again = true; - - _function: while (_again) { - _again = false; - - runBatcherQueue(queue); - runBatcherQueue(userQueue); - // user watchers triggered more watchers, - // keep flushing until it depletes - if (queue.length) { - _again = true; - continue _function; - } - // dev tool hook - /* istanbul ignore if */ - if (devtools && config.devtools) { - devtools.emit('flush'); - } - resetBatcherState(); - } -} - -/** - * Run the watchers in a single queue. - * - * @param {Array} queue - */ - -function runBatcherQueue(queue) { - // do not cache length because more watchers might be pushed - // as we run existing watchers - for (var i = 0; i < queue.length; i++) { - var watcher = queue[i]; - var id = watcher.id; - has[id] = null; - watcher.run(); - // in dev build, check and stop circular updates. - if ('development' !== 'production' && has[id] != null) { - circular[id] = (circular[id] || 0) + 1; - if (circular[id] > config._maxUpdateCount) { - warn('You may have an infinite update loop for watcher ' + 'with expression "' + watcher.expression + '"', watcher.vm); - break; - } - } - } - queue.length = 0; -} - -/** - * Push a watcher into the watcher queue. - * Jobs with duplicate IDs will be skipped unless it's - * pushed when the queue is being flushed. - * - * @param {Watcher} watcher - * properties: - * - {Number} id - * - {Function} run - */ - -function pushWatcher(watcher) { - var id = watcher.id; - if (has[id] == null) { - // push watcher into appropriate queue - var q = watcher.user ? userQueue : queue; - has[id] = q.length; - q.push(watcher); - // queue the flush - if (!waiting) { - waiting = true; - nextTick(flushBatcherQueue); - } - } -} - -var uid$2 = 0; - -/** - * A watcher parses an expression, collects dependencies, - * and fires callback when the expression value changes. - * This is used for both the $watch() api and directives. - * - * @param {Vue} vm - * @param {String|Function} expOrFn - * @param {Function} cb - * @param {Object} options - * - {Array} filters - * - {Boolean} twoWay - * - {Boolean} deep - * - {Boolean} user - * - {Boolean} sync - * - {Boolean} lazy - * - {Function} [preProcess] - * - {Function} [postProcess] - * @constructor - */ -function Watcher(vm, expOrFn, cb, options) { - // mix in options - if (options) { - extend(this, options); - } - var isFn = typeof expOrFn === 'function'; - this.vm = vm; - vm._watchers.push(this); - this.expression = expOrFn; - this.cb = cb; - this.id = ++uid$2; // uid for batching - this.active = true; - this.dirty = this.lazy; // for lazy watchers - this.deps = []; - this.newDeps = []; - this.depIds = new _Set(); - this.newDepIds = new _Set(); - this.prevError = null; // for async error stacks - // parse expression for getter/setter - if (isFn) { - this.getter = expOrFn; - this.setter = undefined; - } else { - var res = parseExpression$1(expOrFn, this.twoWay); - this.getter = res.get; - this.setter = res.set; - } - this.value = this.lazy ? undefined : this.get(); - // state for avoiding false triggers for deep and Array - // watchers during vm._digest() - this.queued = this.shallow = false; -} - -/** - * Evaluate the getter, and re-collect dependencies. - */ - -Watcher.prototype.get = function () { - this.beforeGet(); - var scope = this.scope || this.vm; - var value; - try { - value = this.getter.call(scope, scope); - } catch (e) { - if ('development' !== 'production' && config.warnExpressionErrors) { - warn('Error when evaluating expression ' + '"' + this.expression + '": ' + e.toString(), this.vm); - } - } - // "touch" every property so they are all tracked as - // dependencies for deep watching - if (this.deep) { - traverse(value); - } - if (this.preProcess) { - value = this.preProcess(value); - } - if (this.filters) { - value = scope._applyFilters(value, null, this.filters, false); - } - if (this.postProcess) { - value = this.postProcess(value); - } - this.afterGet(); - return value; -}; - -/** - * Set the corresponding value with the setter. - * - * @param {*} value - */ - -Watcher.prototype.set = function (value) { - var scope = this.scope || this.vm; - if (this.filters) { - value = scope._applyFilters(value, this.value, this.filters, true); - } - try { - this.setter.call(scope, scope, value); - } catch (e) { - if ('development' !== 'production' && config.warnExpressionErrors) { - warn('Error when evaluating setter ' + '"' + this.expression + '": ' + e.toString(), this.vm); - } - } - // two-way sync for v-for alias - var forContext = scope.$forContext; - if (forContext && forContext.alias === this.expression) { - if (forContext.filters) { - 'development' !== 'production' && warn('It seems you are using two-way binding on ' + 'a v-for alias (' + this.expression + '), and the ' + 'v-for has filters. This will not work properly. ' + 'Either remove the filters or use an array of ' + 'objects and bind to object properties instead.', this.vm); - return; - } - forContext._withLock(function () { - if (scope.$key) { - // original is an object - forContext.rawValue[scope.$key] = value; - } else { - forContext.rawValue.$set(scope.$index, value); - } - }); - } -}; - -/** - * Prepare for dependency collection. - */ - -Watcher.prototype.beforeGet = function () { - Dep.target = this; -}; - -/** - * Add a dependency to this directive. - * - * @param {Dep} dep - */ - -Watcher.prototype.addDep = function (dep) { - var id = dep.id; - if (!this.newDepIds.has(id)) { - this.newDepIds.add(id); - this.newDeps.push(dep); - if (!this.depIds.has(id)) { - dep.addSub(this); - } - } -}; - -/** - * Clean up for dependency collection. - */ - -Watcher.prototype.afterGet = function () { - Dep.target = null; - var i = this.deps.length; - while (i--) { - var dep = this.deps[i]; - if (!this.newDepIds.has(dep.id)) { - dep.removeSub(this); - } - } - var tmp = this.depIds; - this.depIds = this.newDepIds; - this.newDepIds = tmp; - this.newDepIds.clear(); - tmp = this.deps; - this.deps = this.newDeps; - this.newDeps = tmp; - this.newDeps.length = 0; -}; - -/** - * Subscriber interface. - * Will be called when a dependency changes. - * - * @param {Boolean} shallow - */ - -Watcher.prototype.update = function (shallow) { - if (this.lazy) { - this.dirty = true; - } else if (this.sync || !config.async) { - this.run(); - } else { - // if queued, only overwrite shallow with non-shallow, - // but not the other way around. - this.shallow = this.queued ? shallow ? this.shallow : false : !!shallow; - this.queued = true; - // record before-push error stack in debug mode - /* istanbul ignore if */ - if ('development' !== 'production' && config.debug) { - this.prevError = new Error('[vue] async stack trace'); - } - pushWatcher(this); - } -}; - -/** - * Batcher job interface. - * Will be called by the batcher. - */ - -Watcher.prototype.run = function () { - if (this.active) { - var value = this.get(); - if (value !== this.value || - // Deep watchers and watchers on Object/Arrays should fire even - // when the value is the same, because the value may - // have mutated; but only do so if this is a - // non-shallow update (caused by a vm digest). - (isObject(value) || this.deep) && !this.shallow) { - // set new value - var oldValue = this.value; - this.value = value; - // in debug + async mode, when a watcher callbacks - // throws, we also throw the saved before-push error - // so the full cross-tick stack trace is available. - var prevError = this.prevError; - /* istanbul ignore if */ - if ('development' !== 'production' && config.debug && prevError) { - this.prevError = null; - try { - this.cb.call(this.vm, value, oldValue); - } catch (e) { - nextTick(function () { - throw prevError; - }, 0); - throw e; - } - } else { - this.cb.call(this.vm, value, oldValue); - } - } - this.queued = this.shallow = false; - } -}; - -/** - * Evaluate the value of the watcher. - * This only gets called for lazy watchers. - */ - -Watcher.prototype.evaluate = function () { - // avoid overwriting another watcher that is being - // collected. - var current = Dep.target; - this.value = this.get(); - this.dirty = false; - Dep.target = current; -}; - -/** - * Depend on all deps collected by this watcher. - */ - -Watcher.prototype.depend = function () { - var i = this.deps.length; - while (i--) { - this.deps[i].depend(); - } -}; - -/** - * Remove self from all dependencies' subcriber list. - */ - -Watcher.prototype.teardown = function () { - if (this.active) { - // remove self from vm's watcher list - // this is a somewhat expensive operation so we skip it - // if the vm is being destroyed or is performing a v-for - // re-render (the watcher list is then filtered by v-for). - if (!this.vm._isBeingDestroyed && !this.vm._vForRemoving) { - this.vm._watchers.$remove(this); - } - var i = this.deps.length; - while (i--) { - this.deps[i].removeSub(this); - } - this.active = false; - this.vm = this.cb = this.value = null; - } -}; - -/** - * Recrusively traverse an object to evoke all converted - * getters, so that every nested property inside the object - * is collected as a "deep" dependency. - * - * @param {*} val - */ - -var seenObjects = new _Set(); -function traverse(val, seen) { - var i = undefined, - keys = undefined; - if (!seen) { - seen = seenObjects; - seen.clear(); - } - var isA = isArray(val); - var isO = isObject(val); - if ((isA || isO) && Object.isExtensible(val)) { - if (val.__ob__) { - var depId = val.__ob__.dep.id; - if (seen.has(depId)) { - return; - } else { - seen.add(depId); - } - } - if (isA) { - i = val.length; - while (i--) traverse(val[i], seen); - } else if (isO) { - keys = Object.keys(val); - i = keys.length; - while (i--) traverse(val[keys[i]], seen); - } - } -} - -var text$1 = { - - bind: function bind() { - this.attr = this.el.nodeType === 3 ? 'data' : 'textContent'; - }, - - update: function update(value) { - this.el[this.attr] = _toString(value); - } -}; - -var templateCache = new Cache(1000); -var idSelectorCache = new Cache(1000); - -var map = { - efault: [0, '', ''], - legend: [1, '
', '
'], - tr: [2, '', '
'], - col: [2, '', '
'] -}; - -map.td = map.th = [3, '', '
']; - -map.option = map.optgroup = [1, '']; - -map.thead = map.tbody = map.colgroup = map.caption = map.tfoot = [1, '', '
']; - -map.g = map.defs = map.symbol = map.use = map.image = map.text = map.circle = map.ellipse = map.line = map.path = map.polygon = map.polyline = map.rect = [1, '', '']; - -/** - * Check if a node is a supported template node with a - * DocumentFragment content. - * - * @param {Node} node - * @return {Boolean} - */ - -function isRealTemplate(node) { - return isTemplate(node) && isFragment(node.content); -} - -var tagRE$1 = /<([\w:-]+)/; -var entityRE = /&#?\w+?;/; -var commentRE = /