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-rw-r--r--node_modules/vue-template-compiler/build.js4837
1 files changed, 4837 insertions, 0 deletions
diff --git a/node_modules/vue-template-compiler/build.js b/node_modules/vue-template-compiler/build.js
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+++ b/node_modules/vue-template-compiler/build.js
@@ -0,0 +1,4837 @@
+'use strict';
+
+Object.defineProperty(exports, '__esModule', { value: true });
+
+function _interopDefault (ex) { return (ex && (typeof ex === 'object') && 'default' in ex) ? ex['default'] : ex; }
+
+var deindent = _interopDefault(require('de-indent'));
+var he = _interopDefault(require('he'));
+
+/* */
+
+var emptyObject = Object.freeze({});
+
+// these helpers produces better vm code in JS engines due to their
+// explicitness and function inlining
+function isUndef (v) {
+ return v === undefined || v === null
+}
+
+
+
+
+
+
+
+/**
+ * Check if value is primitive
+ */
+function isPrimitive (value) {
+ return (
+ typeof value === 'string' ||
+ typeof value === 'number' ||
+ // $flow-disable-line
+ typeof value === 'symbol' ||
+ typeof value === 'boolean'
+ )
+}
+
+/**
+ * Quick object check - this is primarily used to tell
+ * Objects from primitive values when we know the value
+ * is a JSON-compliant type.
+ */
+function isObject (obj) {
+ return obj !== null && typeof obj === 'object'
+}
+
+/**
+ * Get the raw type string of a value e.g. [object Object]
+ */
+var _toString = Object.prototype.toString;
+
+function toRawType (value) {
+ return _toString.call(value).slice(8, -1)
+}
+
+/**
+ * Strict object type check. Only returns true
+ * for plain JavaScript objects.
+ */
+function isPlainObject (obj) {
+ return _toString.call(obj) === '[object Object]'
+}
+
+
+
+/**
+ * Check if val is a valid array index.
+ */
+function isValidArrayIndex (val) {
+ var n = parseFloat(String(val));
+ return n >= 0 && Math.floor(n) === n && isFinite(val)
+}
+
+/**
+ * Convert a value to a string that is actually rendered.
+ */
+
+
+/**
+ * Convert a input value to a number for persistence.
+ * If the conversion fails, return original string.
+ */
+
+
+/**
+ * Make a map and return a function for checking if a key
+ * is in that map.
+ */
+function makeMap (
+ str,
+ expectsLowerCase
+) {
+ var map = Object.create(null);
+ var list = str.split(',');
+ for (var i = 0; i < list.length; i++) {
+ map[list[i]] = true;
+ }
+ return expectsLowerCase
+ ? function (val) { return map[val.toLowerCase()]; }
+ : function (val) { return map[val]; }
+}
+
+/**
+ * Check if a tag is a built-in tag.
+ */
+var isBuiltInTag = makeMap('slot,component', true);
+
+/**
+ * Check if a attribute is a reserved attribute.
+ */
+var isReservedAttribute = makeMap('key,ref,slot,slot-scope,is');
+
+/**
+ * Remove an item from an array
+ */
+function remove (arr, item) {
+ if (arr.length) {
+ var index = arr.indexOf(item);
+ if (index > -1) {
+ return arr.splice(index, 1)
+ }
+ }
+}
+
+/**
+ * Check whether the object has the property.
+ */
+var hasOwnProperty = Object.prototype.hasOwnProperty;
+function hasOwn (obj, key) {
+ return hasOwnProperty.call(obj, key)
+}
+
+/**
+ * Create a cached version of a pure function.
+ */
+function cached (fn) {
+ var cache = Object.create(null);
+ return (function cachedFn (str) {
+ var hit = cache[str];
+ return hit || (cache[str] = fn(str))
+ })
+}
+
+/**
+ * Camelize a hyphen-delimited string.
+ */
+var camelizeRE = /-(\w)/g;
+var camelize = cached(function (str) {
+ return str.replace(camelizeRE, function (_, c) { return c ? c.toUpperCase() : ''; })
+});
+
+/**
+ * Capitalize a string.
+ */
+
+
+
+
+/**
+ * Simple bind polyfill for environments that do not support it... e.g.
+ * PhantomJS 1.x. Technically we don't need this anymore since native bind is
+ * now more performant in most browsers, but removing it would be breaking for
+ * code that was able to run in PhantomJS 1.x, so this must be kept for
+ * backwards compatibility.
+ */
+
+/* istanbul ignore next */
+function polyfillBind (fn, ctx) {
+ function boundFn (a) {
+ var l = arguments.length;
+ return l
+ ? l > 1
+ ? fn.apply(ctx, arguments)
+ : fn.call(ctx, a)
+ : fn.call(ctx)
+ }
+
+ boundFn._length = fn.length;
+ return boundFn
+}
+
+function nativeBind (fn, ctx) {
+ return fn.bind(ctx)
+}
+
+var bind = Function.prototype.bind
+ ? nativeBind
+ : polyfillBind;
+
+/**
+ * Convert an Array-like object to a real Array.
+ */
+
+
+/**
+ * Mix properties into target object.
+ */
+function extend (to, _from) {
+ for (var key in _from) {
+ to[key] = _from[key];
+ }
+ return to
+}
+
+/**
+ * Merge an Array of Objects into a single Object.
+ */
+
+
+/**
+ * Perform no operation.
+ * Stubbing args to make Flow happy without leaving useless transpiled code
+ * with ...rest (https://flow.org/blog/2017/05/07/Strict-Function-Call-Arity/)
+ */
+function noop (a, b, c) {}
+
+/**
+ * Always return false.
+ */
+var no = function (a, b, c) { return false; };
+
+/**
+ * Return same value
+ */
+var identity = function (_) { return _; };
+
+/**
+ * Generate a static keys string from compiler modules.
+ */
+function genStaticKeys (modules) {
+ return modules.reduce(function (keys, m) {
+ return keys.concat(m.staticKeys || [])
+ }, []).join(',')
+}
+
+/**
+ * Check if two values are loosely equal - that is,
+ * if they are plain objects, do they have the same shape?
+ */
+
+
+
+
+/**
+ * Ensure a function is called only once.
+ */
+
+/* */
+
+var isUnaryTag = makeMap(
+ 'area,base,br,col,embed,frame,hr,img,input,isindex,keygen,' +
+ 'link,meta,param,source,track,wbr'
+);
+
+// Elements that you can, intentionally, leave open
+// (and which close themselves)
+var canBeLeftOpenTag = makeMap(
+ 'colgroup,dd,dt,li,options,p,td,tfoot,th,thead,tr,source'
+);
+
+// HTML5 tags https://html.spec.whatwg.org/multipage/indices.html#elements-3
+// Phrasing Content https://html.spec.whatwg.org/multipage/dom.html#phrasing-content
+var isNonPhrasingTag = makeMap(
+ 'address,article,aside,base,blockquote,body,caption,col,colgroup,dd,' +
+ 'details,dialog,div,dl,dt,fieldset,figcaption,figure,footer,form,' +
+ 'h1,h2,h3,h4,h5,h6,head,header,hgroup,hr,html,legend,li,menuitem,meta,' +
+ 'optgroup,option,param,rp,rt,source,style,summary,tbody,td,tfoot,th,thead,' +
+ 'title,tr,track'
+);
+
+/**
+ * Not type-checking this file because it's mostly vendor code.
+ */
+
+/*!
+ * HTML Parser By John Resig (ejohn.org)
+ * Modified by Juriy "kangax" Zaytsev
+ * Original code by Erik Arvidsson, Mozilla Public License
+ * http://erik.eae.net/simplehtmlparser/simplehtmlparser.js
+ */
+
+// Regular Expressions for parsing tags and attributes
+var attribute = /^\s*([^\s"'<>\/=]+)(?:\s*(=)\s*(?:"([^"]*)"+|'([^']*)'+|([^\s"'=<>`]+)))?/;
+// could use https://www.w3.org/TR/1999/REC-xml-names-19990114/#NT-QName
+// but for Vue templates we can enforce a simple charset
+var ncname = '[a-zA-Z_][\\w\\-\\.]*';
+var qnameCapture = "((?:" + ncname + "\\:)?" + ncname + ")";
+var startTagOpen = new RegExp(("^<" + qnameCapture));
+var startTagClose = /^\s*(\/?)>/;
+var endTag = new RegExp(("^<\\/" + qnameCapture + "[^>]*>"));
+var doctype = /^<!DOCTYPE [^>]+>/i;
+// #7298: escape - to avoid being pased as HTML comment when inlined in page
+var comment = /^<!\--/;
+var conditionalComment = /^<!\[/;
+
+var IS_REGEX_CAPTURING_BROKEN = false;
+'x'.replace(/x(.)?/g, function (m, g) {
+ IS_REGEX_CAPTURING_BROKEN = g === '';
+});
+
+// Special Elements (can contain anything)
+var isPlainTextElement = makeMap('script,style,textarea', true);
+var reCache = {};
+
+var decodingMap = {
+ '&lt;': '<',
+ '&gt;': '>',
+ '&quot;': '"',
+ '&amp;': '&',
+ '&#10;': '\n',
+ '&#9;': '\t'
+};
+var encodedAttr = /&(?:lt|gt|quot|amp);/g;
+var encodedAttrWithNewLines = /&(?:lt|gt|quot|amp|#10|#9);/g;
+
+// #5992
+var isIgnoreNewlineTag = makeMap('pre,textarea', true);
+var shouldIgnoreFirstNewline = function (tag, html) { return tag && isIgnoreNewlineTag(tag) && html[0] === '\n'; };
+
+function decodeAttr (value, shouldDecodeNewlines) {
+ var re = shouldDecodeNewlines ? encodedAttrWithNewLines : encodedAttr;
+ return value.replace(re, function (match) { return decodingMap[match]; })
+}
+
+function parseHTML (html, options) {
+ var stack = [];
+ var expectHTML = options.expectHTML;
+ var isUnaryTag$$1 = options.isUnaryTag || no;
+ var canBeLeftOpenTag$$1 = options.canBeLeftOpenTag || no;
+ var index = 0;
+ var last, lastTag;
+ while (html) {
+ last = html;
+ // Make sure we're not in a plaintext content element like script/style
+ if (!lastTag || !isPlainTextElement(lastTag)) {
+ var textEnd = html.indexOf('<');
+ if (textEnd === 0) {
+ // Comment:
+ if (comment.test(html)) {
+ var commentEnd = html.indexOf('-->');
+
+ if (commentEnd >= 0) {
+ if (options.shouldKeepComment) {
+ options.comment(html.substring(4, commentEnd));
+ }
+ advance(commentEnd + 3);
+ continue
+ }
+ }
+
+ // http://en.wikipedia.org/wiki/Conditional_comment#Downlevel-revealed_conditional_comment
+ if (conditionalComment.test(html)) {
+ var conditionalEnd = html.indexOf(']>');
+
+ if (conditionalEnd >= 0) {
+ advance(conditionalEnd + 2);
+ continue
+ }
+ }
+
+ // Doctype:
+ var doctypeMatch = html.match(doctype);
+ if (doctypeMatch) {
+ advance(doctypeMatch[0].length);
+ continue
+ }
+
+ // End tag:
+ var endTagMatch = html.match(endTag);
+ if (endTagMatch) {
+ var curIndex = index;
+ advance(endTagMatch[0].length);
+ parseEndTag(endTagMatch[1], curIndex, index);
+ continue
+ }
+
+ // Start tag:
+ var startTagMatch = parseStartTag();
+ if (startTagMatch) {
+ handleStartTag(startTagMatch);
+ if (shouldIgnoreFirstNewline(lastTag, html)) {
+ advance(1);
+ }
+ continue
+ }
+ }
+
+ var text = (void 0), rest = (void 0), next = (void 0);
+ if (textEnd >= 0) {
+ rest = html.slice(textEnd);
+ while (
+ !endTag.test(rest) &&
+ !startTagOpen.test(rest) &&
+ !comment.test(rest) &&
+ !conditionalComment.test(rest)
+ ) {
+ // < in plain text, be forgiving and treat it as text
+ next = rest.indexOf('<', 1);
+ if (next < 0) { break }
+ textEnd += next;
+ rest = html.slice(textEnd);
+ }
+ text = html.substring(0, textEnd);
+ advance(textEnd);
+ }
+
+ if (textEnd < 0) {
+ text = html;
+ html = '';
+ }
+
+ if (options.chars && text) {
+ options.chars(text);
+ }
+ } else {
+ var endTagLength = 0;
+ var stackedTag = lastTag.toLowerCase();
+ var reStackedTag = reCache[stackedTag] || (reCache[stackedTag] = new RegExp('([\\s\\S]*?)(</' + stackedTag + '[^>]*>)', 'i'));
+ var rest$1 = html.replace(reStackedTag, function (all, text, endTag) {
+ endTagLength = endTag.length;
+ if (!isPlainTextElement(stackedTag) && stackedTag !== 'noscript') {
+ text = text
+ .replace(/<!\--([\s\S]*?)-->/g, '$1') // #7298
+ .replace(/<!\[CDATA\[([\s\S]*?)]]>/g, '$1');
+ }
+ if (shouldIgnoreFirstNewline(stackedTag, text)) {
+ text = text.slice(1);
+ }
+ if (options.chars) {
+ options.chars(text);
+ }
+ return ''
+ });
+ index += html.length - rest$1.length;
+ html = rest$1;
+ parseEndTag(stackedTag, index - endTagLength, index);
+ }
+
+ if (html === last) {
+ options.chars && options.chars(html);
+ if (process.env.NODE_ENV !== 'production' && !stack.length && options.warn) {
+ options.warn(("Mal-formatted tag at end of template: \"" + html + "\""));
+ }
+ break
+ }
+ }
+
+ // Clean up any remaining tags
+ parseEndTag();
+
+ function advance (n) {
+ index += n;
+ html = html.substring(n);
+ }
+
+ function parseStartTag () {
+ var start = html.match(startTagOpen);
+ if (start) {
+ var match = {
+ tagName: start[1],
+ attrs: [],
+ start: index
+ };
+ advance(start[0].length);
+ var end, attr;
+ while (!(end = html.match(startTagClose)) && (attr = html.match(attribute))) {
+ advance(attr[0].length);
+ match.attrs.push(attr);
+ }
+ if (end) {
+ match.unarySlash = end[1];
+ advance(end[0].length);
+ match.end = index;
+ return match
+ }
+ }
+ }
+
+ function handleStartTag (match) {
+ var tagName = match.tagName;
+ var unarySlash = match.unarySlash;
+
+ if (expectHTML) {
+ if (lastTag === 'p' && isNonPhrasingTag(tagName)) {
+ parseEndTag(lastTag);
+ }
+ if (canBeLeftOpenTag$$1(tagName) && lastTag === tagName) {
+ parseEndTag(tagName);
+ }
+ }
+
+ var unary = isUnaryTag$$1(tagName) || !!unarySlash;
+
+ var l = match.attrs.length;
+ var attrs = new Array(l);
+ for (var i = 0; i < l; i++) {
+ var args = match.attrs[i];
+ // hackish work around FF bug https://bugzilla.mozilla.org/show_bug.cgi?id=369778
+ if (IS_REGEX_CAPTURING_BROKEN && args[0].indexOf('""') === -1) {
+ if (args[3] === '') { delete args[3]; }
+ if (args[4] === '') { delete args[4]; }
+ if (args[5] === '') { delete args[5]; }
+ }
+ var value = args[3] || args[4] || args[5] || '';
+ var shouldDecodeNewlines = tagName === 'a' && args[1] === 'href'
+ ? options.shouldDecodeNewlinesForHref
+ : options.shouldDecodeNewlines;
+ attrs[i] = {
+ name: args[1],
+ value: decodeAttr(value, shouldDecodeNewlines)
+ };
+ }
+
+ if (!unary) {
+ stack.push({ tag: tagName, lowerCasedTag: tagName.toLowerCase(), attrs: attrs });
+ lastTag = tagName;
+ }
+
+ if (options.start) {
+ options.start(tagName, attrs, unary, match.start, match.end);
+ }
+ }
+
+ function parseEndTag (tagName, start, end) {
+ var pos, lowerCasedTagName;
+ if (start == null) { start = index; }
+ if (end == null) { end = index; }
+
+ if (tagName) {
+ lowerCasedTagName = tagName.toLowerCase();
+ }
+
+ // Find the closest opened tag of the same type
+ if (tagName) {
+ for (pos = stack.length - 1; pos >= 0; pos--) {
+ if (stack[pos].lowerCasedTag === lowerCasedTagName) {
+ break
+ }
+ }
+ } else {
+ // If no tag name is provided, clean shop
+ pos = 0;
+ }
+
+ if (pos >= 0) {
+ // Close all the open elements, up the stack
+ for (var i = stack.length - 1; i >= pos; i--) {
+ if (process.env.NODE_ENV !== 'production' &&
+ (i > pos || !tagName) &&
+ options.warn
+ ) {
+ options.warn(
+ ("tag <" + (stack[i].tag) + "> has no matching end tag.")
+ );
+ }
+ if (options.end) {
+ options.end(stack[i].tag, start, end);
+ }
+ }
+
+ // Remove the open elements from the stack
+ stack.length = pos;
+ lastTag = pos && stack[pos - 1].tag;
+ } else if (lowerCasedTagName === 'br') {
+ if (options.start) {
+ options.start(tagName, [], true, start, end);
+ }
+ } else if (lowerCasedTagName === 'p') {
+ if (options.start) {
+ options.start(tagName, [], false, start, end);
+ }
+ if (options.end) {
+ options.end(tagName, start, end);
+ }
+ }
+ }
+}
+
+/* */
+
+var splitRE = /\r?\n/g;
+var replaceRE = /./g;
+var isSpecialTag = makeMap('script,style,template', true);
+
+
+
+/**
+ * Parse a single-file component (*.vue) file into an SFC Descriptor Object.
+ */
+function parseComponent (
+ content,
+ options
+) {
+ if ( options === void 0 ) options = {};
+
+ var sfc = {
+ template: null,
+ script: null,
+ styles: [],
+ customBlocks: []
+ };
+ var depth = 0;
+ var currentBlock = null;
+
+ function start (
+ tag,
+ attrs,
+ unary,
+ start,
+ end
+ ) {
+ if (depth === 0) {
+ currentBlock = {
+ type: tag,
+ content: '',
+ start: end,
+ attrs: attrs.reduce(function (cumulated, ref) {
+ var name = ref.name;
+ var value = ref.value;
+
+ cumulated[name] = value || true;
+ return cumulated
+ }, {})
+ };
+ if (isSpecialTag(tag)) {
+ checkAttrs(currentBlock, attrs);
+ if (tag === 'style') {
+ sfc.styles.push(currentBlock);
+ } else {
+ sfc[tag] = currentBlock;
+ }
+ } else { // custom blocks
+ sfc.customBlocks.push(currentBlock);
+ }
+ }
+ if (!unary) {
+ depth++;
+ }
+ }
+
+ function checkAttrs (block, attrs) {
+ for (var i = 0; i < attrs.length; i++) {
+ var attr = attrs[i];
+ if (attr.name === 'lang') {
+ block.lang = attr.value;
+ }
+ if (attr.name === 'scoped') {
+ block.scoped = true;
+ }
+ if (attr.name === 'module') {
+ block.module = attr.value || true;
+ }
+ if (attr.name === 'src') {
+ block.src = attr.value;
+ }
+ }
+ }
+
+ function end (tag, start, end) {
+ if (depth === 1 && currentBlock) {
+ currentBlock.end = start;
+ var text = deindent(content.slice(currentBlock.start, currentBlock.end));
+ // pad content so that linters and pre-processors can output correct
+ // line numbers in errors and warnings
+ if (currentBlock.type !== 'template' && options.pad) {
+ text = padContent(currentBlock, options.pad) + text;
+ }
+ currentBlock.content = text;
+ currentBlock = null;
+ }
+ depth--;
+ }
+
+ function padContent (block, pad) {
+ if (pad === 'space') {
+ return content.slice(0, block.start).replace(replaceRE, ' ')
+ } else {
+ var offset = content.slice(0, block.start).split(splitRE).length;
+ var padChar = block.type === 'script' && !block.lang
+ ? '//\n'
+ : '\n';
+ return Array(offset).join(padChar)
+ }
+ }
+
+ parseHTML(content, {
+ start: start,
+ end: end
+ });
+
+ return sfc
+}
+
+/* */
+
+/**
+ * Check if a string starts with $ or _
+ */
+
+
+/**
+ * Define a property.
+ */
+function def (obj, key, val, enumerable) {
+ Object.defineProperty(obj, key, {
+ value: val,
+ enumerable: !!enumerable,
+ writable: true,
+ configurable: true
+ });
+}
+
+/* */
+
+// can we use __proto__?
+var hasProto = '__proto__' in {};
+
+// Browser environment sniffing
+var inBrowser = typeof window !== 'undefined';
+var inWeex = typeof WXEnvironment !== 'undefined' && !!WXEnvironment.platform;
+var weexPlatform = inWeex && WXEnvironment.platform.toLowerCase();
+var UA = inBrowser && window.navigator.userAgent.toLowerCase();
+var isIE = UA && /msie|trident/.test(UA);
+var isIE9 = UA && UA.indexOf('msie 9.0') > 0;
+var isEdge = UA && UA.indexOf('edge/') > 0;
+var isAndroid = (UA && UA.indexOf('android') > 0) || (weexPlatform === 'android');
+var isIOS = (UA && /iphone|ipad|ipod|ios/.test(UA)) || (weexPlatform === 'ios');
+var isChrome = UA && /chrome\/\d+/.test(UA) && !isEdge;
+
+// Firefox has a "watch" function on Object.prototype...
+var nativeWatch = ({}).watch;
+
+
+if (inBrowser) {
+ try {
+ var opts = {};
+ Object.defineProperty(opts, 'passive', ({
+ get: function get () {
+ /* istanbul ignore next */
+
+ }
+ })); // https://github.com/facebook/flow/issues/285
+ window.addEventListener('test-passive', null, opts);
+ } catch (e) {}
+}
+
+// this needs to be lazy-evaled because vue may be required before
+// vue-server-renderer can set VUE_ENV
+var _isServer;
+var isServerRendering = function () {
+ if (_isServer === undefined) {
+ /* istanbul ignore if */
+ if (!inBrowser && !inWeex && typeof global !== 'undefined') {
+ // detect presence of vue-server-renderer and avoid
+ // Webpack shimming the process
+ _isServer = global['process'].env.VUE_ENV === 'server';
+ } else {
+ _isServer = false;
+ }
+ }
+ return _isServer
+};
+
+// detect devtools
+var devtools = inBrowser && window.__VUE_DEVTOOLS_GLOBAL_HOOK__;
+
+/* istanbul ignore next */
+function isNative (Ctor) {
+ return typeof Ctor === 'function' && /native code/.test(Ctor.toString())
+}
+
+var hasSymbol =
+ typeof Symbol !== 'undefined' && isNative(Symbol) &&
+ typeof Reflect !== 'undefined' && isNative(Reflect.ownKeys);
+
+/* istanbul ignore if */ // $flow-disable-line
+if (typeof Set !== 'undefined' && isNative(Set)) {
+ // use native Set when available.
+
+} else {
+ // a non-standard Set polyfill that only works with primitive keys.
+
+}
+
+var ASSET_TYPES = [
+ 'component',
+ 'directive',
+ 'filter'
+];
+
+var LIFECYCLE_HOOKS = [
+ 'beforeCreate',
+ 'created',
+ 'beforeMount',
+ 'mounted',
+ 'beforeUpdate',
+ 'updated',
+ 'beforeDestroy',
+ 'destroyed',
+ 'activated',
+ 'deactivated',
+ 'errorCaptured'
+];
+
+/* */
+
+var config = ({
+ /**
+ * Option merge strategies (used in core/util/options)
+ */
+ // $flow-disable-line
+ optionMergeStrategies: Object.create(null),
+
+ /**
+ * Whether to suppress warnings.
+ */
+ silent: false,
+
+ /**
+ * Show production mode tip message on boot?
+ */
+ productionTip: process.env.NODE_ENV !== 'production',
+
+ /**
+ * Whether to enable devtools
+ */
+ devtools: process.env.NODE_ENV !== 'production',
+
+ /**
+ * Whether to record perf
+ */
+ performance: false,
+
+ /**
+ * Error handler for watcher errors
+ */
+ errorHandler: null,
+
+ /**
+ * Warn handler for watcher warns
+ */
+ warnHandler: null,
+
+ /**
+ * Ignore certain custom elements
+ */
+ ignoredElements: [],
+
+ /**
+ * Custom user key aliases for v-on
+ */
+ // $flow-disable-line
+ keyCodes: Object.create(null),
+
+ /**
+ * Check if a tag is reserved so that it cannot be registered as a
+ * component. This is platform-dependent and may be overwritten.
+ */
+ isReservedTag: no,
+
+ /**
+ * Check if an attribute is reserved so that it cannot be used as a component
+ * prop. This is platform-dependent and may be overwritten.
+ */
+ isReservedAttr: no,
+
+ /**
+ * Check if a tag is an unknown element.
+ * Platform-dependent.
+ */
+ isUnknownElement: no,
+
+ /**
+ * Get the namespace of an element
+ */
+ getTagNamespace: noop,
+
+ /**
+ * Parse the real tag name for the specific platform.
+ */
+ parsePlatformTagName: identity,
+
+ /**
+ * Check if an attribute must be bound using property, e.g. value
+ * Platform-dependent.
+ */
+ mustUseProp: no,
+
+ /**
+ * Exposed for legacy reasons
+ */
+ _lifecycleHooks: LIFECYCLE_HOOKS
+})
+
+/* */
+
+var warn = noop;
+var tip = noop;
+var generateComponentTrace = (noop); // work around flow check
+var formatComponentName = (noop);
+
+if (process.env.NODE_ENV !== 'production') {
+ var hasConsole = typeof console !== 'undefined';
+ var classifyRE = /(?:^|[-_])(\w)/g;
+ var classify = function (str) { return str
+ .replace(classifyRE, function (c) { return c.toUpperCase(); })
+ .replace(/[-_]/g, ''); };
+
+ warn = function (msg, vm) {
+ var trace = vm ? generateComponentTrace(vm) : '';
+
+ if (config.warnHandler) {
+ config.warnHandler.call(null, msg, vm, trace);
+ } else if (hasConsole && (!config.silent)) {
+ console.error(("[Vue warn]: " + msg + trace));
+ }
+ };
+
+ tip = function (msg, vm) {
+ if (hasConsole && (!config.silent)) {
+ console.warn("[Vue tip]: " + msg + (
+ vm ? generateComponentTrace(vm) : ''
+ ));
+ }
+ };
+
+ formatComponentName = function (vm, includeFile) {
+ if (vm.$root === vm) {
+ return '<Root>'
+ }
+ var options = typeof vm === 'function' && vm.cid != null
+ ? vm.options
+ : vm._isVue
+ ? vm.$options || vm.constructor.options
+ : vm || {};
+ var name = options.name || options._componentTag;
+ var file = options.__file;
+ if (!name && file) {
+ var match = file.match(/([^/\\]+)\.vue$/);
+ name = match && match[1];
+ }
+
+ return (
+ (name ? ("<" + (classify(name)) + ">") : "<Anonymous>") +
+ (file && includeFile !== false ? (" at " + file) : '')
+ )
+ };
+
+ var repeat = function (str, n) {
+ var res = '';
+ while (n) {
+ if (n % 2 === 1) { res += str; }
+ if (n > 1) { str += str; }
+ n >>= 1;
+ }
+ return res
+ };
+
+ generateComponentTrace = function (vm) {
+ if (vm._isVue && vm.$parent) {
+ var tree = [];
+ var currentRecursiveSequence = 0;
+ while (vm) {
+ if (tree.length > 0) {
+ var last = tree[tree.length - 1];
+ if (last.constructor === vm.constructor) {
+ currentRecursiveSequence++;
+ vm = vm.$parent;
+ continue
+ } else if (currentRecursiveSequence > 0) {
+ tree[tree.length - 1] = [last, currentRecursiveSequence];
+ currentRecursiveSequence = 0;
+ }
+ }
+ tree.push(vm);
+ vm = vm.$parent;
+ }
+ return '\n\nfound in\n\n' + tree
+ .map(function (vm, i) { return ("" + (i === 0 ? '---> ' : repeat(' ', 5 + i * 2)) + (Array.isArray(vm)
+ ? ((formatComponentName(vm[0])) + "... (" + (vm[1]) + " recursive calls)")
+ : formatComponentName(vm))); })
+ .join('\n')
+ } else {
+ return ("\n\n(found in " + (formatComponentName(vm)) + ")")
+ }
+ };
+}
+
+/* */
+
+
+var uid = 0;
+
+/**
+ * A dep is an observable that can have multiple
+ * directives subscribing to it.
+ */
+var Dep = function Dep () {
+ this.id = uid++;
+ this.subs = [];
+};
+
+Dep.prototype.addSub = function addSub (sub) {
+ this.subs.push(sub);
+};
+
+Dep.prototype.removeSub = function removeSub (sub) {
+ remove(this.subs, sub);
+};
+
+Dep.prototype.depend = function depend () {
+ if (Dep.target) {
+ Dep.target.addDep(this);
+ }
+};
+
+Dep.prototype.notify = function notify () {
+ // stabilize the subscriber list first
+ var subs = this.subs.slice();
+ for (var i = 0, l = subs.length; i < l; i++) {
+ subs[i].update();
+ }
+};
+
+// 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;
+
+/* */
+
+var VNode = function VNode (
+ tag,
+ data,
+ children,
+ text,
+ elm,
+ context,
+ componentOptions,
+ asyncFactory
+) {
+ this.tag = tag;
+ this.data = data;
+ this.children = children;
+ this.text = text;
+ this.elm = elm;
+ this.ns = undefined;
+ this.context = context;
+ this.fnContext = undefined;
+ this.fnOptions = undefined;
+ this.fnScopeId = undefined;
+ this.key = data && data.key;
+ this.componentOptions = componentOptions;
+ this.componentInstance = undefined;
+ this.parent = undefined;
+ this.raw = false;
+ this.isStatic = false;
+ this.isRootInsert = true;
+ this.isComment = false;
+ this.isCloned = false;
+ this.isOnce = false;
+ this.asyncFactory = asyncFactory;
+ this.asyncMeta = undefined;
+ this.isAsyncPlaceholder = false;
+};
+
+var prototypeAccessors = { child: { configurable: true } };
+
+// DEPRECATED: alias for componentInstance for backwards compat.
+/* istanbul ignore next */
+prototypeAccessors.child.get = function () {
+ return this.componentInstance
+};
+
+Object.defineProperties( VNode.prototype, prototypeAccessors );
+
+
+
+
+
+// optimized shallow clone
+// used for static nodes and slot nodes because they may be reused across
+// multiple renders, cloning them avoids errors when DOM manipulations rely
+// on their elm reference.
+
+/*
+ * not type checking this file because flow doesn't play well with
+ * dynamically accessing methods on Array prototype
+ */
+
+var arrayProto = Array.prototype;
+var arrayMethods = Object.create(arrayProto);
+
+var methodsToPatch = [
+ 'push',
+ 'pop',
+ 'shift',
+ 'unshift',
+ 'splice',
+ 'sort',
+ 'reverse'
+];
+
+/**
+ * Intercept mutating methods and emit events
+ */
+methodsToPatch.forEach(function (method) {
+ // cache original method
+ var original = arrayProto[method];
+ def(arrayMethods, method, function mutator () {
+ var args = [], len = arguments.length;
+ while ( len-- ) args[ len ] = arguments[ len ];
+
+ var result = original.apply(this, args);
+ var ob = this.__ob__;
+ var inserted;
+ switch (method) {
+ case 'push':
+ case 'unshift':
+ inserted = args;
+ break
+ case 'splice':
+ inserted = args.slice(2);
+ break
+ }
+ if (inserted) { ob.observeArray(inserted); }
+ // notify change
+ ob.dep.notify();
+ return result
+ });
+});
+
+/* */
+
+var arrayKeys = Object.getOwnPropertyNames(arrayMethods);
+
+/**
+ * In some cases we may want to disable observation inside a component's
+ * update computation.
+ */
+var shouldObserve = true;
+
+
+
+/**
+ * Observer class that is attached to each observed
+ * object. Once attached, the observer converts the target
+ * object's property keys into getter/setters that
+ * collect dependencies and dispatch updates.
+ */
+var Observer = function Observer (value) {
+ this.value = value;
+ this.dep = new Dep();
+ this.vmCount = 0;
+ def(value, '__ob__', this);
+ if (Array.isArray(value)) {
+ var augment = hasProto
+ ? protoAugment
+ : copyAugment;
+ augment(value, arrayMethods, arrayKeys);
+ this.observeArray(value);
+ } else {
+ this.walk(value);
+ }
+};
+
+/**
+ * Walk through each property and convert them into
+ * getter/setters. This method should only be called when
+ * value type is Object.
+ */
+Observer.prototype.walk = function walk (obj) {
+ var keys = Object.keys(obj);
+ for (var i = 0; i < keys.length; i++) {
+ defineReactive(obj, keys[i]);
+ }
+};
+
+/**
+ * Observe a list of Array items.
+ */
+Observer.prototype.observeArray = function observeArray (items) {
+ for (var i = 0, l = items.length; i < l; i++) {
+ observe(items[i]);
+ }
+};
+
+// helpers
+
+/**
+ * Augment an target Object or Array by intercepting
+ * the prototype chain using __proto__
+ */
+function protoAugment (target, src, keys) {
+ /* eslint-disable no-proto */
+ target.__proto__ = src;
+ /* eslint-enable no-proto */
+}
+
+/**
+ * Augment an target Object or Array by defining
+ * hidden properties.
+ */
+/* istanbul ignore next */
+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.
+ */
+function observe (value, asRootData) {
+ if (!isObject(value) || value instanceof VNode) {
+ return
+ }
+ var ob;
+ if (hasOwn(value, '__ob__') && value.__ob__ instanceof Observer) {
+ ob = value.__ob__;
+ } else if (
+ shouldObserve &&
+ !isServerRendering() &&
+ (Array.isArray(value) || isPlainObject(value)) &&
+ Object.isExtensible(value) &&
+ !value._isVue
+ ) {
+ ob = new Observer(value);
+ }
+ if (asRootData && ob) {
+ ob.vmCount++;
+ }
+ return ob
+}
+
+/**
+ * Define a reactive property on an Object.
+ */
+function defineReactive (
+ obj,
+ key,
+ val,
+ customSetter,
+ shallow
+) {
+ 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;
+ if (!getter && arguments.length === 2) {
+ val = obj[key];
+ }
+ var setter = property && property.set;
+
+ var childOb = !shallow && 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 (Array.isArray(value)) {
+ dependArray(value);
+ }
+ }
+ }
+ return value
+ },
+ set: function reactiveSetter (newVal) {
+ var value = getter ? getter.call(obj) : val;
+ /* eslint-disable no-self-compare */
+ if (newVal === value || (newVal !== newVal && value !== value)) {
+ return
+ }
+ /* eslint-enable no-self-compare */
+ if (process.env.NODE_ENV !== 'production' && customSetter) {
+ customSetter();
+ }
+ if (setter) {
+ setter.call(obj, newVal);
+ } else {
+ val = newVal;
+ }
+ childOb = !shallow && observe(newVal);
+ dep.notify();
+ }
+ });
+}
+
+/**
+ * Set a property on an object. Adds the new property and
+ * triggers change notification if the property doesn't
+ * already exist.
+ */
+function set (target, key, val) {
+ if (process.env.NODE_ENV !== 'production' &&
+ (isUndef(target) || isPrimitive(target))
+ ) {
+ warn(("Cannot set reactive property on undefined, null, or primitive value: " + ((target))));
+ }
+ if (Array.isArray(target) && isValidArrayIndex(key)) {
+ target.length = Math.max(target.length, key);
+ target.splice(key, 1, val);
+ return val
+ }
+ if (key in target && !(key in Object.prototype)) {
+ target[key] = val;
+ return val
+ }
+ var ob = (target).__ob__;
+ if (target._isVue || (ob && ob.vmCount)) {
+ process.env.NODE_ENV !== 'production' && warn(
+ 'Avoid adding reactive properties to a Vue instance or its root $data ' +
+ 'at runtime - declare it upfront in the data option.'
+ );
+ return val
+ }
+ if (!ob) {
+ target[key] = val;
+ return val
+ }
+ defineReactive(ob.value, key, val);
+ ob.dep.notify();
+ return val
+}
+
+/**
+ * Delete a property and trigger change if necessary.
+ */
+
+
+/**
+ * Collect dependencies on array elements when the array is touched, since
+ * we cannot intercept array element access like property getters.
+ */
+function dependArray (value) {
+ for (var e = (void 0), i = 0, l = value.length; i < l; i++) {
+ e = value[i];
+ e && e.__ob__ && e.__ob__.dep.depend();
+ if (Array.isArray(e)) {
+ dependArray(e);
+ }
+ }
+}
+
+/* */
+
+/**
+ * Option overwriting strategies are functions that handle
+ * how to merge a parent option value and a child option
+ * value into the final value.
+ */
+var strats = config.optionMergeStrategies;
+
+/**
+ * Options with restrictions
+ */
+if (process.env.NODE_ENV !== 'production') {
+ strats.el = strats.propsData = function (parent, child, vm, key) {
+ if (!vm) {
+ warn(
+ "option \"" + key + "\" can only be used during instance " +
+ 'creation with the `new` keyword.'
+ );
+ }
+ return defaultStrat(parent, child)
+ };
+}
+
+/**
+ * Helper that recursively merges two data objects together.
+ */
+function mergeData (to, from) {
+ if (!from) { return to }
+ var key, toVal, fromVal;
+ var keys = Object.keys(from);
+ for (var i = 0; i < keys.length; i++) {
+ key = keys[i];
+ toVal = to[key];
+ fromVal = from[key];
+ if (!hasOwn(to, key)) {
+ set(to, key, fromVal);
+ } else if (isPlainObject(toVal) && isPlainObject(fromVal)) {
+ mergeData(toVal, fromVal);
+ }
+ }
+ return to
+}
+
+/**
+ * Data
+ */
+function mergeDataOrFn (
+ parentVal,
+ childVal,
+ vm
+) {
+ if (!vm) {
+ // in a Vue.extend merge, both should be functions
+ if (!childVal) {
+ 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(
+ typeof childVal === 'function' ? childVal.call(this, this) : childVal,
+ typeof parentVal === 'function' ? parentVal.call(this, this) : parentVal
+ )
+ }
+ } else {
+ return function mergedInstanceDataFn () {
+ // instance merge
+ var instanceData = typeof childVal === 'function'
+ ? childVal.call(vm, vm)
+ : childVal;
+ var defaultData = typeof parentVal === 'function'
+ ? parentVal.call(vm, vm)
+ : parentVal;
+ if (instanceData) {
+ return mergeData(instanceData, defaultData)
+ } else {
+ return defaultData
+ }
+ }
+ }
+}
+
+strats.data = function (
+ parentVal,
+ childVal,
+ vm
+) {
+ if (!vm) {
+ if (childVal && typeof childVal !== 'function') {
+ process.env.NODE_ENV !== 'production' && warn(
+ 'The "data" option should be a function ' +
+ 'that returns a per-instance value in component ' +
+ 'definitions.',
+ vm
+ );
+
+ return parentVal
+ }
+ return mergeDataOrFn(parentVal, childVal)
+ }
+
+ return mergeDataOrFn(parentVal, childVal, vm)
+};
+
+/**
+ * Hooks and props are merged as arrays.
+ */
+function mergeHook (
+ parentVal,
+ childVal
+) {
+ return childVal
+ ? parentVal
+ ? parentVal.concat(childVal)
+ : Array.isArray(childVal)
+ ? childVal
+ : [childVal]
+ : parentVal
+}
+
+LIFECYCLE_HOOKS.forEach(function (hook) {
+ strats[hook] = mergeHook;
+});
+
+/**
+ * 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,
+ vm,
+ key
+) {
+ var res = Object.create(parentVal || null);
+ if (childVal) {
+ process.env.NODE_ENV !== 'production' && assertObjectType(key, childVal, vm);
+ return extend(res, childVal)
+ } else {
+ return res
+ }
+}
+
+ASSET_TYPES.forEach(function (type) {
+ strats[type + 's'] = mergeAssets;
+});
+
+/**
+ * Watchers.
+ *
+ * Watchers hashes should not overwrite one
+ * another, so we merge them as arrays.
+ */
+strats.watch = function (
+ parentVal,
+ childVal,
+ vm,
+ key
+) {
+ // work around Firefox's Object.prototype.watch...
+ if (parentVal === nativeWatch) { parentVal = undefined; }
+ if (childVal === nativeWatch) { childVal = undefined; }
+ /* istanbul ignore if */
+ if (!childVal) { return Object.create(parentVal || null) }
+ if (process.env.NODE_ENV !== 'production') {
+ assertObjectType(key, childVal, vm);
+ }
+ if (!parentVal) { return childVal }
+ var ret = {};
+ extend(ret, parentVal);
+ for (var key$1 in childVal) {
+ var parent = ret[key$1];
+ var child = childVal[key$1];
+ if (parent && !Array.isArray(parent)) {
+ parent = [parent];
+ }
+ ret[key$1] = parent
+ ? parent.concat(child)
+ : Array.isArray(child) ? child : [child];
+ }
+ return ret
+};
+
+/**
+ * Other object hashes.
+ */
+strats.props =
+strats.methods =
+strats.inject =
+strats.computed = function (
+ parentVal,
+ childVal,
+ vm,
+ key
+) {
+ if (childVal && process.env.NODE_ENV !== 'production') {
+ assertObjectType(key, childVal, vm);
+ }
+ if (!parentVal) { return childVal }
+ var ret = Object.create(null);
+ extend(ret, parentVal);
+ if (childVal) { extend(ret, childVal); }
+ return ret
+};
+strats.provide = mergeDataOrFn;
+
+/**
+ * Default strategy.
+ */
+var defaultStrat = function (parentVal, childVal) {
+ return childVal === undefined
+ ? parentVal
+ : childVal
+};
+
+
+
+function assertObjectType (name, value, vm) {
+ if (!isPlainObject(value)) {
+ warn(
+ "Invalid value for option \"" + name + "\": expected an Object, " +
+ "but got " + (toRawType(value)) + ".",
+ vm
+ );
+ }
+}
+
+/**
+ * Merge two option objects into a new one.
+ * Core utility used in both instantiation and inheritance.
+ */
+
+
+/**
+ * Resolve an asset.
+ * This function is used because child instances need access
+ * to assets defined in its ancestor chain.
+ */
+
+/* */
+
+/* */
+
+/* */
+/* globals MessageChannel */
+
+var callbacks = [];
+function flushCallbacks () {
+ var copies = callbacks.slice(0);
+ callbacks.length = 0;
+ for (var i = 0; i < copies.length; i++) {
+ copies[i]();
+ }
+}
+
+// Determine (macro) task defer implementation.
+// Technically setImmediate should be the ideal choice, but it's only available
+// in IE. The only polyfill that consistently queues the callback after all DOM
+// events triggered in the same loop is by using MessageChannel.
+/* istanbul ignore if */
+if (typeof setImmediate !== 'undefined' && isNative(setImmediate)) {
+
+} else if (typeof MessageChannel !== 'undefined' && (
+ isNative(MessageChannel) ||
+ // PhantomJS
+ MessageChannel.toString() === '[object MessageChannelConstructor]'
+)) {
+ var channel = new MessageChannel();
+ channel.port1.onmessage = flushCallbacks;
+
+} else {
+ /* istanbul ignore next */
+
+}
+
+// Determine microtask defer implementation.
+/* istanbul ignore next, $flow-disable-line */
+if (typeof Promise !== 'undefined' && isNative(Promise)) {
+
+} else {
+ // fallback to macro
+
+}
+
+/**
+ * Wrap a function so that if any code inside triggers state change,
+ * the changes are queued using a (macro) task instead of a microtask.
+ */
+
+/* */
+
+/* */
+
+// these are reserved for web because they are directly compiled away
+// during template compilation
+var isReservedAttr = makeMap('style,class');
+
+// attributes that should be using props for binding
+var acceptValue = makeMap('input,textarea,option,select,progress');
+var mustUseProp = function (tag, type, attr) {
+ return (
+ (attr === 'value' && acceptValue(tag)) && type !== 'button' ||
+ (attr === 'selected' && tag === 'option') ||
+ (attr === 'checked' && tag === 'input') ||
+ (attr === 'muted' && tag === 'video')
+ )
+};
+
+var isEnumeratedAttr = makeMap('contenteditable,draggable,spellcheck');
+
+var isBooleanAttr = makeMap(
+ 'allowfullscreen,async,autofocus,autoplay,checked,compact,controls,declare,' +
+ 'default,defaultchecked,defaultmuted,defaultselected,defer,disabled,' +
+ 'enabled,formnovalidate,hidden,indeterminate,inert,ismap,itemscope,loop,multiple,' +
+ 'muted,nohref,noresize,noshade,novalidate,nowrap,open,pauseonexit,readonly,' +
+ 'required,reversed,scoped,seamless,selected,sortable,translate,' +
+ 'truespeed,typemustmatch,visible'
+);
+
+/* */
+
+/* */
+
+
+
+var isHTMLTag = makeMap(
+ 'html,body,base,head,link,meta,style,title,' +
+ 'address,article,aside,footer,header,h1,h2,h3,h4,h5,h6,hgroup,nav,section,' +
+ 'div,dd,dl,dt,figcaption,figure,picture,hr,img,li,main,ol,p,pre,ul,' +
+ 'a,b,abbr,bdi,bdo,br,cite,code,data,dfn,em,i,kbd,mark,q,rp,rt,rtc,ruby,' +
+ 's,samp,small,span,strong,sub,sup,time,u,var,wbr,area,audio,map,track,video,' +
+ 'embed,object,param,source,canvas,script,noscript,del,ins,' +
+ 'caption,col,colgroup,table,thead,tbody,td,th,tr,' +
+ 'button,datalist,fieldset,form,input,label,legend,meter,optgroup,option,' +
+ 'output,progress,select,textarea,' +
+ 'details,dialog,menu,menuitem,summary,' +
+ 'content,element,shadow,template,blockquote,iframe,tfoot'
+);
+
+// this map is intentionally selective, only covering SVG elements that may
+// contain child elements.
+var isSVG = makeMap(
+ 'svg,animate,circle,clippath,cursor,defs,desc,ellipse,filter,font-face,' +
+ 'foreignObject,g,glyph,image,line,marker,mask,missing-glyph,path,pattern,' +
+ 'polygon,polyline,rect,switch,symbol,text,textpath,tspan,use,view',
+ true
+);
+
+var isPreTag = function (tag) { return tag === 'pre'; };
+
+var isReservedTag = function (tag) {
+ return isHTMLTag(tag) || isSVG(tag)
+};
+
+function getTagNamespace (tag) {
+ if (isSVG(tag)) {
+ return 'svg'
+ }
+ // basic support for MathML
+ // note it doesn't support other MathML elements being component roots
+ if (tag === 'math') {
+ return 'math'
+ }
+}
+
+
+
+var isTextInputType = makeMap('text,number,password,search,email,tel,url');
+
+/* */
+
+/**
+ * Query an element selector if it's not an element already.
+ */
+
+/* */
+
+var validDivisionCharRE = /[\w).+\-_$\]]/;
+
+function parseFilters (exp) {
+ var inSingle = false;
+ var inDouble = false;
+ var inTemplateString = false;
+ var inRegex = false;
+ var curly = 0;
+ var square = 0;
+ var paren = 0;
+ var lastFilterIndex = 0;
+ var c, prev, i, expression, filters;
+
+ for (i = 0; i < exp.length; i++) {
+ prev = c;
+ c = exp.charCodeAt(i);
+ if (inSingle) {
+ if (c === 0x27 && prev !== 0x5C) { inSingle = false; }
+ } else if (inDouble) {
+ if (c === 0x22 && prev !== 0x5C) { inDouble = false; }
+ } else if (inTemplateString) {
+ if (c === 0x60 && prev !== 0x5C) { inTemplateString = false; }
+ } else if (inRegex) {
+ if (c === 0x2f && prev !== 0x5C) { inRegex = false; }
+ } else if (
+ c === 0x7C && // pipe
+ exp.charCodeAt(i + 1) !== 0x7C &&
+ exp.charCodeAt(i - 1) !== 0x7C &&
+ !curly && !square && !paren
+ ) {
+ if (expression === undefined) {
+ // first filter, end of expression
+ lastFilterIndex = i + 1;
+ expression = exp.slice(0, i).trim();
+ } else {
+ pushFilter();
+ }
+ } else {
+ switch (c) {
+ case 0x22: inDouble = true; break // "
+ case 0x27: inSingle = true; break // '
+ case 0x60: inTemplateString = true; break // `
+ case 0x28: paren++; break // (
+ case 0x29: paren--; break // )
+ case 0x5B: square++; break // [
+ case 0x5D: square--; break // ]
+ case 0x7B: curly++; break // {
+ case 0x7D: curly--; break // }
+ }
+ if (c === 0x2f) { // /
+ var j = i - 1;
+ var p = (void 0);
+ // find first non-whitespace prev char
+ for (; j >= 0; j--) {
+ p = exp.charAt(j);
+ if (p !== ' ') { break }
+ }
+ if (!p || !validDivisionCharRE.test(p)) {
+ inRegex = true;
+ }
+ }
+ }
+ }
+
+ if (expression === undefined) {
+ expression = exp.slice(0, i).trim();
+ } else if (lastFilterIndex !== 0) {
+ pushFilter();
+ }
+
+ function pushFilter () {
+ (filters || (filters = [])).push(exp.slice(lastFilterIndex, i).trim());
+ lastFilterIndex = i + 1;
+ }
+
+ if (filters) {
+ for (i = 0; i < filters.length; i++) {
+ expression = wrapFilter(expression, filters[i]);
+ }
+ }
+
+ return expression
+}
+
+function wrapFilter (exp, filter) {
+ var i = filter.indexOf('(');
+ if (i < 0) {
+ // _f: resolveFilter
+ return ("_f(\"" + filter + "\")(" + exp + ")")
+ } else {
+ var name = filter.slice(0, i);
+ var args = filter.slice(i + 1);
+ return ("_f(\"" + name + "\")(" + exp + (args !== ')' ? ',' + args : args))
+ }
+}
+
+/* */
+
+var defaultTagRE = /\{\{((?:.|\n)+?)\}\}/g;
+var regexEscapeRE = /[-.*+?^${}()|[\]\/\\]/g;
+
+var buildRegex = cached(function (delimiters) {
+ var open = delimiters[0].replace(regexEscapeRE, '\\$&');
+ var close = delimiters[1].replace(regexEscapeRE, '\\$&');
+ return new RegExp(open + '((?:.|\\n)+?)' + close, 'g')
+});
+
+
+
+function parseText (
+ text,
+ delimiters
+) {
+ var tagRE = delimiters ? buildRegex(delimiters) : defaultTagRE;
+ if (!tagRE.test(text)) {
+ return
+ }
+ var tokens = [];
+ var rawTokens = [];
+ var lastIndex = tagRE.lastIndex = 0;
+ var match, index, tokenValue;
+ while ((match = tagRE.exec(text))) {
+ index = match.index;
+ // push text token
+ if (index > lastIndex) {
+ rawTokens.push(tokenValue = text.slice(lastIndex, index));
+ tokens.push(JSON.stringify(tokenValue));
+ }
+ // tag token
+ var exp = parseFilters(match[1].trim());
+ tokens.push(("_s(" + exp + ")"));
+ rawTokens.push({ '@binding': exp });
+ lastIndex = index + match[0].length;
+ }
+ if (lastIndex < text.length) {
+ rawTokens.push(tokenValue = text.slice(lastIndex));
+ tokens.push(JSON.stringify(tokenValue));
+ }
+ return {
+ expression: tokens.join('+'),
+ tokens: rawTokens
+ }
+}
+
+/* */
+
+function baseWarn (msg) {
+ console.error(("[Vue compiler]: " + msg));
+}
+
+function pluckModuleFunction (
+ modules,
+ key
+) {
+ return modules
+ ? modules.map(function (m) { return m[key]; }).filter(function (_) { return _; })
+ : []
+}
+
+function addProp (el, name, value) {
+ (el.props || (el.props = [])).push({ name: name, value: value });
+ el.plain = false;
+}
+
+function addAttr (el, name, value) {
+ (el.attrs || (el.attrs = [])).push({ name: name, value: value });
+ el.plain = false;
+}
+
+// add a raw attr (use this in preTransforms)
+function addRawAttr (el, name, value) {
+ el.attrsMap[name] = value;
+ el.attrsList.push({ name: name, value: value });
+}
+
+function addDirective (
+ el,
+ name,
+ rawName,
+ value,
+ arg,
+ modifiers
+) {
+ (el.directives || (el.directives = [])).push({ name: name, rawName: rawName, value: value, arg: arg, modifiers: modifiers });
+ el.plain = false;
+}
+
+function addHandler (
+ el,
+ name,
+ value,
+ modifiers,
+ important,
+ warn
+) {
+ modifiers = modifiers || emptyObject;
+ // warn prevent and passive modifier
+ /* istanbul ignore if */
+ if (
+ process.env.NODE_ENV !== 'production' && warn &&
+ modifiers.prevent && modifiers.passive
+ ) {
+ warn(
+ 'passive and prevent can\'t be used together. ' +
+ 'Passive handler can\'t prevent default event.'
+ );
+ }
+
+ // check capture modifier
+ if (modifiers.capture) {
+ delete modifiers.capture;
+ name = '!' + name; // mark the event as captured
+ }
+ if (modifiers.once) {
+ delete modifiers.once;
+ name = '~' + name; // mark the event as once
+ }
+ /* istanbul ignore if */
+ if (modifiers.passive) {
+ delete modifiers.passive;
+ name = '&' + name; // mark the event as passive
+ }
+
+ // normalize click.right and click.middle since they don't actually fire
+ // this is technically browser-specific, but at least for now browsers are
+ // the only target envs that have right/middle clicks.
+ if (name === 'click') {
+ if (modifiers.right) {
+ name = 'contextmenu';
+ delete modifiers.right;
+ } else if (modifiers.middle) {
+ name = 'mouseup';
+ }
+ }
+
+ var events;
+ if (modifiers.native) {
+ delete modifiers.native;
+ events = el.nativeEvents || (el.nativeEvents = {});
+ } else {
+ events = el.events || (el.events = {});
+ }
+
+ var newHandler = {
+ value: value.trim()
+ };
+ if (modifiers !== emptyObject) {
+ newHandler.modifiers = modifiers;
+ }
+
+ var handlers = events[name];
+ /* istanbul ignore if */
+ if (Array.isArray(handlers)) {
+ important ? handlers.unshift(newHandler) : handlers.push(newHandler);
+ } else if (handlers) {
+ events[name] = important ? [newHandler, handlers] : [handlers, newHandler];
+ } else {
+ events[name] = newHandler;
+ }
+
+ el.plain = false;
+}
+
+function getBindingAttr (
+ el,
+ name,
+ getStatic
+) {
+ var dynamicValue =
+ getAndRemoveAttr(el, ':' + name) ||
+ getAndRemoveAttr(el, 'v-bind:' + name);
+ if (dynamicValue != null) {
+ return parseFilters(dynamicValue)
+ } else if (getStatic !== false) {
+ var staticValue = getAndRemoveAttr(el, name);
+ if (staticValue != null) {
+ return JSON.stringify(staticValue)
+ }
+ }
+}
+
+// note: this only removes the attr from the Array (attrsList) so that it
+// doesn't get processed by processAttrs.
+// By default it does NOT remove it from the map (attrsMap) because the map is
+// needed during codegen.
+function getAndRemoveAttr (
+ el,
+ name,
+ removeFromMap
+) {
+ var val;
+ if ((val = el.attrsMap[name]) != null) {
+ var list = el.attrsList;
+ for (var i = 0, l = list.length; i < l; i++) {
+ if (list[i].name === name) {
+ list.splice(i, 1);
+ break
+ }
+ }
+ }
+ if (removeFromMap) {
+ delete el.attrsMap[name];
+ }
+ return val
+}
+
+/* */
+
+function transformNode (el, options) {
+ var warn = options.warn || baseWarn;
+ var staticClass = getAndRemoveAttr(el, 'class');
+ if (process.env.NODE_ENV !== 'production' && staticClass) {
+ var res = parseText(staticClass, options.delimiters);
+ if (res) {
+ warn(
+ "class=\"" + staticClass + "\": " +
+ 'Interpolation inside attributes has been removed. ' +
+ 'Use v-bind or the colon shorthand instead. For example, ' +
+ 'instead of <div class="{{ val }}">, use <div :class="val">.'
+ );
+ }
+ }
+ if (staticClass) {
+ el.staticClass = JSON.stringify(staticClass);
+ }
+ var classBinding = getBindingAttr(el, 'class', false /* getStatic */);
+ if (classBinding) {
+ el.classBinding = classBinding;
+ }
+}
+
+function genData (el) {
+ var data = '';
+ if (el.staticClass) {
+ data += "staticClass:" + (el.staticClass) + ",";
+ }
+ if (el.classBinding) {
+ data += "class:" + (el.classBinding) + ",";
+ }
+ return data
+}
+
+var klass = {
+ staticKeys: ['staticClass'],
+ transformNode: transformNode,
+ genData: genData
+}
+
+/* */
+
+var parseStyleText = cached(function (cssText) {
+ var res = {};
+ var listDelimiter = /;(?![^(]*\))/g;
+ var propertyDelimiter = /:(.+)/;
+ cssText.split(listDelimiter).forEach(function (item) {
+ if (item) {
+ var tmp = item.split(propertyDelimiter);
+ tmp.length > 1 && (res[tmp[0].trim()] = tmp[1].trim());
+ }
+ });
+ return res
+});
+
+// normalize possible array / string values into Object
+
+
+/**
+ * parent component style should be after child's
+ * so that parent component's style could override it
+ */
+
+/* */
+
+function transformNode$1 (el, options) {
+ var warn = options.warn || baseWarn;
+ var staticStyle = getAndRemoveAttr(el, 'style');
+ if (staticStyle) {
+ /* istanbul ignore if */
+ if (process.env.NODE_ENV !== 'production') {
+ var res = parseText(staticStyle, options.delimiters);
+ if (res) {
+ warn(
+ "style=\"" + staticStyle + "\": " +
+ 'Interpolation inside attributes has been removed. ' +
+ 'Use v-bind or the colon shorthand instead. For example, ' +
+ 'instead of <div style="{{ val }}">, use <div :style="val">.'
+ );
+ }
+ }
+ el.staticStyle = JSON.stringify(parseStyleText(staticStyle));
+ }
+
+ var styleBinding = getBindingAttr(el, 'style', false /* getStatic */);
+ if (styleBinding) {
+ el.styleBinding = styleBinding;
+ }
+}
+
+function genData$1 (el) {
+ var data = '';
+ if (el.staticStyle) {
+ data += "staticStyle:" + (el.staticStyle) + ",";
+ }
+ if (el.styleBinding) {
+ data += "style:(" + (el.styleBinding) + "),";
+ }
+ return data
+}
+
+var style = {
+ staticKeys: ['staticStyle'],
+ transformNode: transformNode$1,
+ genData: genData$1
+}
+
+/* */
+
+/**
+ * Cross-platform code generation for component v-model
+ */
+function genComponentModel (
+ el,
+ value,
+ modifiers
+) {
+ var ref = modifiers || {};
+ var number = ref.number;
+ var trim = ref.trim;
+
+ var baseValueExpression = '$$v';
+ var valueExpression = baseValueExpression;
+ if (trim) {
+ valueExpression =
+ "(typeof " + baseValueExpression + " === 'string'" +
+ "? " + baseValueExpression + ".trim()" +
+ ": " + baseValueExpression + ")";
+ }
+ if (number) {
+ valueExpression = "_n(" + valueExpression + ")";
+ }
+ var assignment = genAssignmentCode(value, valueExpression);
+
+ el.model = {
+ value: ("(" + value + ")"),
+ expression: ("\"" + value + "\""),
+ callback: ("function (" + baseValueExpression + ") {" + assignment + "}")
+ };
+}
+
+/**
+ * Cross-platform codegen helper for generating v-model value assignment code.
+ */
+function genAssignmentCode (
+ value,
+ assignment
+) {
+ var res = parseModel(value);
+ if (res.key === null) {
+ return (value + "=" + assignment)
+ } else {
+ return ("$set(" + (res.exp) + ", " + (res.key) + ", " + assignment + ")")
+ }
+}
+
+/**
+ * Parse a v-model expression into a base path and a final key segment.
+ * Handles both dot-path and possible square brackets.
+ *
+ * Possible cases:
+ *
+ * - test
+ * - test[key]
+ * - test[test1[key]]
+ * - test["a"][key]
+ * - xxx.test[a[a].test1[key]]
+ * - test.xxx.a["asa"][test1[key]]
+ *
+ */
+
+var len;
+var str;
+var chr;
+var index;
+var expressionPos;
+var expressionEndPos;
+
+
+
+function parseModel (val) {
+ // Fix https://github.com/vuejs/vue/pull/7730
+ // allow v-model="obj.val " (trailing whitespace)
+ val = val.trim();
+ len = val.length;
+
+ if (val.indexOf('[') < 0 || val.lastIndexOf(']') < len - 1) {
+ index = val.lastIndexOf('.');
+ if (index > -1) {
+ return {
+ exp: val.slice(0, index),
+ key: '"' + val.slice(index + 1) + '"'
+ }
+ } else {
+ return {
+ exp: val,
+ key: null
+ }
+ }
+ }
+
+ str = val;
+ index = expressionPos = expressionEndPos = 0;
+
+ while (!eof()) {
+ chr = next();
+ /* istanbul ignore if */
+ if (isStringStart(chr)) {
+ parseString(chr);
+ } else if (chr === 0x5B) {
+ parseBracket(chr);
+ }
+ }
+
+ return {
+ exp: val.slice(0, expressionPos),
+ key: val.slice(expressionPos + 1, expressionEndPos)
+ }
+}
+
+function next () {
+ return str.charCodeAt(++index)
+}
+
+function eof () {
+ return index >= len
+}
+
+function isStringStart (chr) {
+ return chr === 0x22 || chr === 0x27
+}
+
+function parseBracket (chr) {
+ var inBracket = 1;
+ expressionPos = index;
+ while (!eof()) {
+ chr = next();
+ if (isStringStart(chr)) {
+ parseString(chr);
+ continue
+ }
+ if (chr === 0x5B) { inBracket++; }
+ if (chr === 0x5D) { inBracket--; }
+ if (inBracket === 0) {
+ expressionEndPos = index;
+ break
+ }
+ }
+}
+
+function parseString (chr) {
+ var stringQuote = chr;
+ while (!eof()) {
+ chr = next();
+ if (chr === stringQuote) {
+ break
+ }
+ }
+}
+
+/* */
+
+var onRE = /^@|^v-on:/;
+var dirRE = /^v-|^@|^:/;
+var forAliasRE = /([^]*?)\s+(?:in|of)\s+([^]*)/;
+var forIteratorRE = /,([^,\}\]]*)(?:,([^,\}\]]*))?$/;
+var stripParensRE = /^\(|\)$/g;
+
+var argRE = /:(.*)$/;
+var bindRE = /^:|^v-bind:/;
+var modifierRE = /\.[^.]+/g;
+
+var decodeHTMLCached = cached(he.decode);
+
+// configurable state
+var warn$1;
+var delimiters;
+var transforms;
+var preTransforms;
+var postTransforms;
+var platformIsPreTag;
+var platformMustUseProp;
+var platformGetTagNamespace;
+
+
+
+function createASTElement (
+ tag,
+ attrs,
+ parent
+) {
+ return {
+ type: 1,
+ tag: tag,
+ attrsList: attrs,
+ attrsMap: makeAttrsMap(attrs),
+ parent: parent,
+ children: []
+ }
+}
+
+/**
+ * Convert HTML string to AST.
+ */
+function parse (
+ template,
+ options
+) {
+ warn$1 = options.warn || baseWarn;
+
+ platformIsPreTag = options.isPreTag || no;
+ platformMustUseProp = options.mustUseProp || no;
+ platformGetTagNamespace = options.getTagNamespace || no;
+
+ transforms = pluckModuleFunction(options.modules, 'transformNode');
+ preTransforms = pluckModuleFunction(options.modules, 'preTransformNode');
+ postTransforms = pluckModuleFunction(options.modules, 'postTransformNode');
+
+ delimiters = options.delimiters;
+
+ var stack = [];
+ var preserveWhitespace = options.preserveWhitespace !== false;
+ var root;
+ var currentParent;
+ var inVPre = false;
+ var inPre = false;
+ var warned = false;
+
+ function warnOnce (msg) {
+ if (!warned) {
+ warned = true;
+ warn$1(msg);
+ }
+ }
+
+ function closeElement (element) {
+ // check pre state
+ if (element.pre) {
+ inVPre = false;
+ }
+ if (platformIsPreTag(element.tag)) {
+ inPre = false;
+ }
+ // apply post-transforms
+ for (var i = 0; i < postTransforms.length; i++) {
+ postTransforms[i](element, options);
+ }
+ }
+
+ parseHTML(template, {
+ warn: warn$1,
+ expectHTML: options.expectHTML,
+ isUnaryTag: options.isUnaryTag,
+ canBeLeftOpenTag: options.canBeLeftOpenTag,
+ shouldDecodeNewlines: options.shouldDecodeNewlines,
+ shouldDecodeNewlinesForHref: options.shouldDecodeNewlinesForHref,
+ shouldKeepComment: options.comments,
+ start: function start (tag, attrs, unary) {
+ // check namespace.
+ // inherit parent ns if there is one
+ var ns = (currentParent && currentParent.ns) || platformGetTagNamespace(tag);
+
+ // handle IE svg bug
+ /* istanbul ignore if */
+ if (isIE && ns === 'svg') {
+ attrs = guardIESVGBug(attrs);
+ }
+
+ var element = createASTElement(tag, attrs, currentParent);
+ if (ns) {
+ element.ns = ns;
+ }
+
+ if (isForbiddenTag(element) && !isServerRendering()) {
+ element.forbidden = true;
+ process.env.NODE_ENV !== 'production' && warn$1(
+ 'Templates should only be responsible for mapping the state to the ' +
+ 'UI. Avoid placing tags with side-effects in your templates, such as ' +
+ "<" + tag + ">" + ', as they will not be parsed.'
+ );
+ }
+
+ // apply pre-transforms
+ for (var i = 0; i < preTransforms.length; i++) {
+ element = preTransforms[i](element, options) || element;
+ }
+
+ if (!inVPre) {
+ processPre(element);
+ if (element.pre) {
+ inVPre = true;
+ }
+ }
+ if (platformIsPreTag(element.tag)) {
+ inPre = true;
+ }
+ if (inVPre) {
+ processRawAttrs(element);
+ } else if (!element.processed) {
+ // structural directives
+ processFor(element);
+ processIf(element);
+ processOnce(element);
+ // element-scope stuff
+ processElement(element, options);
+ }
+
+ function checkRootConstraints (el) {
+ if (process.env.NODE_ENV !== 'production') {
+ if (el.tag === 'slot' || el.tag === 'template') {
+ warnOnce(
+ "Cannot use <" + (el.tag) + "> as component root element because it may " +
+ 'contain multiple nodes.'
+ );
+ }
+ if (el.attrsMap.hasOwnProperty('v-for')) {
+ warnOnce(
+ 'Cannot use v-for on stateful component root element because ' +
+ 'it renders multiple elements.'
+ );
+ }
+ }
+ }
+
+ // tree management
+ if (!root) {
+ root = element;
+ checkRootConstraints(root);
+ } else if (!stack.length) {
+ // allow root elements with v-if, v-else-if and v-else
+ if (root.if && (element.elseif || element.else)) {
+ checkRootConstraints(element);
+ addIfCondition(root, {
+ exp: element.elseif,
+ block: element
+ });
+ } else if (process.env.NODE_ENV !== 'production') {
+ warnOnce(
+ "Component template should contain exactly one root element. " +
+ "If you are using v-if on multiple elements, " +
+ "use v-else-if to chain them instead."
+ );
+ }
+ }
+ if (currentParent && !element.forbidden) {
+ if (element.elseif || element.else) {
+ processIfConditions(element, currentParent);
+ } else if (element.slotScope) { // scoped slot
+ currentParent.plain = false;
+ var name = element.slotTarget || '"default"';(currentParent.scopedSlots || (currentParent.scopedSlots = {}))[name] = element;
+ } else {
+ currentParent.children.push(element);
+ element.parent = currentParent;
+ }
+ }
+ if (!unary) {
+ currentParent = element;
+ stack.push(element);
+ } else {
+ closeElement(element);
+ }
+ },
+
+ end: function end () {
+ // remove trailing whitespace
+ var element = stack[stack.length - 1];
+ var lastNode = element.children[element.children.length - 1];
+ if (lastNode && lastNode.type === 3 && lastNode.text === ' ' && !inPre) {
+ element.children.pop();
+ }
+ // pop stack
+ stack.length -= 1;
+ currentParent = stack[stack.length - 1];
+ closeElement(element);
+ },
+
+ chars: function chars (text) {
+ if (!currentParent) {
+ if (process.env.NODE_ENV !== 'production') {
+ if (text === template) {
+ warnOnce(
+ 'Component template requires a root element, rather than just text.'
+ );
+ } else if ((text = text.trim())) {
+ warnOnce(
+ ("text \"" + text + "\" outside root element will be ignored.")
+ );
+ }
+ }
+ return
+ }
+ // IE textarea placeholder bug
+ /* istanbul ignore if */
+ if (isIE &&
+ currentParent.tag === 'textarea' &&
+ currentParent.attrsMap.placeholder === text
+ ) {
+ return
+ }
+ var children = currentParent.children;
+ text = inPre || text.trim()
+ ? isTextTag(currentParent) ? text : decodeHTMLCached(text)
+ // only preserve whitespace if its not right after a starting tag
+ : preserveWhitespace && children.length ? ' ' : '';
+ if (text) {
+ var res;
+ if (!inVPre && text !== ' ' && (res = parseText(text, delimiters))) {
+ children.push({
+ type: 2,
+ expression: res.expression,
+ tokens: res.tokens,
+ text: text
+ });
+ } else if (text !== ' ' || !children.length || children[children.length - 1].text !== ' ') {
+ children.push({
+ type: 3,
+ text: text
+ });
+ }
+ }
+ },
+ comment: function comment (text) {
+ currentParent.children.push({
+ type: 3,
+ text: text,
+ isComment: true
+ });
+ }
+ });
+ return root
+}
+
+function processPre (el) {
+ if (getAndRemoveAttr(el, 'v-pre') != null) {
+ el.pre = true;
+ }
+}
+
+function processRawAttrs (el) {
+ var l = el.attrsList.length;
+ if (l) {
+ var attrs = el.attrs = new Array(l);
+ for (var i = 0; i < l; i++) {
+ attrs[i] = {
+ name: el.attrsList[i].name,
+ value: JSON.stringify(el.attrsList[i].value)
+ };
+ }
+ } else if (!el.pre) {
+ // non root node in pre blocks with no attributes
+ el.plain = true;
+ }
+}
+
+function processElement (element, options) {
+ processKey(element);
+
+ // determine whether this is a plain element after
+ // removing structural attributes
+ element.plain = !element.key && !element.attrsList.length;
+
+ processRef(element);
+ processSlot(element);
+ processComponent(element);
+ for (var i = 0; i < transforms.length; i++) {
+ element = transforms[i](element, options) || element;
+ }
+ processAttrs(element);
+}
+
+function processKey (el) {
+ var exp = getBindingAttr(el, 'key');
+ if (exp) {
+ if (process.env.NODE_ENV !== 'production' && el.tag === 'template') {
+ warn$1("<template> cannot be keyed. Place the key on real elements instead.");
+ }
+ el.key = exp;
+ }
+}
+
+function processRef (el) {
+ var ref = getBindingAttr(el, 'ref');
+ if (ref) {
+ el.ref = ref;
+ el.refInFor = checkInFor(el);
+ }
+}
+
+function processFor (el) {
+ var exp;
+ if ((exp = getAndRemoveAttr(el, 'v-for'))) {
+ var res = parseFor(exp);
+ if (res) {
+ extend(el, res);
+ } else if (process.env.NODE_ENV !== 'production') {
+ warn$1(
+ ("Invalid v-for expression: " + exp)
+ );
+ }
+ }
+}
+
+
+
+function parseFor (exp) {
+ var inMatch = exp.match(forAliasRE);
+ if (!inMatch) { return }
+ var res = {};
+ res.for = inMatch[2].trim();
+ var alias = inMatch[1].trim().replace(stripParensRE, '');
+ var iteratorMatch = alias.match(forIteratorRE);
+ if (iteratorMatch) {
+ res.alias = alias.replace(forIteratorRE, '');
+ res.iterator1 = iteratorMatch[1].trim();
+ if (iteratorMatch[2]) {
+ res.iterator2 = iteratorMatch[2].trim();
+ }
+ } else {
+ res.alias = alias;
+ }
+ return res
+}
+
+function processIf (el) {
+ var exp = getAndRemoveAttr(el, 'v-if');
+ if (exp) {
+ el.if = exp;
+ addIfCondition(el, {
+ exp: exp,
+ block: el
+ });
+ } else {
+ if (getAndRemoveAttr(el, 'v-else') != null) {
+ el.else = true;
+ }
+ var elseif = getAndRemoveAttr(el, 'v-else-if');
+ if (elseif) {
+ el.elseif = elseif;
+ }
+ }
+}
+
+function processIfConditions (el, parent) {
+ var prev = findPrevElement(parent.children);
+ if (prev && prev.if) {
+ addIfCondition(prev, {
+ exp: el.elseif,
+ block: el
+ });
+ } else if (process.env.NODE_ENV !== 'production') {
+ warn$1(
+ "v-" + (el.elseif ? ('else-if="' + el.elseif + '"') : 'else') + " " +
+ "used on element <" + (el.tag) + "> without corresponding v-if."
+ );
+ }
+}
+
+function findPrevElement (children) {
+ var i = children.length;
+ while (i--) {
+ if (children[i].type === 1) {
+ return children[i]
+ } else {
+ if (process.env.NODE_ENV !== 'production' && children[i].text !== ' ') {
+ warn$1(
+ "text \"" + (children[i].text.trim()) + "\" between v-if and v-else(-if) " +
+ "will be ignored."
+ );
+ }
+ children.pop();
+ }
+ }
+}
+
+function addIfCondition (el, condition) {
+ if (!el.ifConditions) {
+ el.ifConditions = [];
+ }
+ el.ifConditions.push(condition);
+}
+
+function processOnce (el) {
+ var once$$1 = getAndRemoveAttr(el, 'v-once');
+ if (once$$1 != null) {
+ el.once = true;
+ }
+}
+
+function processSlot (el) {
+ if (el.tag === 'slot') {
+ el.slotName = getBindingAttr(el, 'name');
+ if (process.env.NODE_ENV !== 'production' && el.key) {
+ warn$1(
+ "`key` does not work on <slot> because slots are abstract outlets " +
+ "and can possibly expand into multiple elements. " +
+ "Use the key on a wrapping element instead."
+ );
+ }
+ } else {
+ var slotScope;
+ if (el.tag === 'template') {
+ slotScope = getAndRemoveAttr(el, 'scope');
+ /* istanbul ignore if */
+ if (process.env.NODE_ENV !== 'production' && slotScope) {
+ warn$1(
+ "the \"scope\" attribute for scoped slots have been deprecated and " +
+ "replaced by \"slot-scope\" since 2.5. The new \"slot-scope\" attribute " +
+ "can also be used on plain elements in addition to <template> to " +
+ "denote scoped slots.",
+ true
+ );
+ }
+ el.slotScope = slotScope || getAndRemoveAttr(el, 'slot-scope');
+ } else if ((slotScope = getAndRemoveAttr(el, 'slot-scope'))) {
+ /* istanbul ignore if */
+ if (process.env.NODE_ENV !== 'production' && el.attrsMap['v-for']) {
+ warn$1(
+ "Ambiguous combined usage of slot-scope and v-for on <" + (el.tag) + "> " +
+ "(v-for takes higher priority). Use a wrapper <template> for the " +
+ "scoped slot to make it clearer.",
+ true
+ );
+ }
+ el.slotScope = slotScope;
+ }
+ var slotTarget = getBindingAttr(el, 'slot');
+ if (slotTarget) {
+ el.slotTarget = slotTarget === '""' ? '"default"' : slotTarget;
+ // preserve slot as an attribute for native shadow DOM compat
+ // only for non-scoped slots.
+ if (el.tag !== 'template' && !el.slotScope) {
+ addAttr(el, 'slot', slotTarget);
+ }
+ }
+ }
+}
+
+function processComponent (el) {
+ var binding;
+ if ((binding = getBindingAttr(el, 'is'))) {
+ el.component = binding;
+ }
+ if (getAndRemoveAttr(el, 'inline-template') != null) {
+ el.inlineTemplate = true;
+ }
+}
+
+function processAttrs (el) {
+ var list = el.attrsList;
+ var i, l, name, rawName, value, modifiers, isProp;
+ for (i = 0, l = list.length; i < l; i++) {
+ name = rawName = list[i].name;
+ value = list[i].value;
+ if (dirRE.test(name)) {
+ // mark element as dynamic
+ el.hasBindings = true;
+ // modifiers
+ modifiers = parseModifiers(name);
+ if (modifiers) {
+ name = name.replace(modifierRE, '');
+ }
+ if (bindRE.test(name)) { // v-bind
+ name = name.replace(bindRE, '');
+ value = parseFilters(value);
+ isProp = false;
+ if (modifiers) {
+ if (modifiers.prop) {
+ isProp = true;
+ name = camelize(name);
+ if (name === 'innerHtml') { name = 'innerHTML'; }
+ }
+ if (modifiers.camel) {
+ name = camelize(name);
+ }
+ if (modifiers.sync) {
+ addHandler(
+ el,
+ ("update:" + (camelize(name))),
+ genAssignmentCode(value, "$event")
+ );
+ }
+ }
+ if (isProp || (
+ !el.component && platformMustUseProp(el.tag, el.attrsMap.type, name)
+ )) {
+ addProp(el, name, value);
+ } else {
+ addAttr(el, name, value);
+ }
+ } else if (onRE.test(name)) { // v-on
+ name = name.replace(onRE, '');
+ addHandler(el, name, value, modifiers, false, warn$1);
+ } else { // normal directives
+ name = name.replace(dirRE, '');
+ // parse arg
+ var argMatch = name.match(argRE);
+ var arg = argMatch && argMatch[1];
+ if (arg) {
+ name = name.slice(0, -(arg.length + 1));
+ }
+ addDirective(el, name, rawName, value, arg, modifiers);
+ if (process.env.NODE_ENV !== 'production' && name === 'model') {
+ checkForAliasModel(el, value);
+ }
+ }
+ } else {
+ // literal attribute
+ if (process.env.NODE_ENV !== 'production') {
+ var res = parseText(value, delimiters);
+ if (res) {
+ warn$1(
+ name + "=\"" + value + "\": " +
+ 'Interpolation inside attributes has been removed. ' +
+ 'Use v-bind or the colon shorthand instead. For example, ' +
+ 'instead of <div id="{{ val }}">, use <div :id="val">.'
+ );
+ }
+ }
+ addAttr(el, name, JSON.stringify(value));
+ // #6887 firefox doesn't update muted state if set via attribute
+ // even immediately after element creation
+ if (!el.component &&
+ name === 'muted' &&
+ platformMustUseProp(el.tag, el.attrsMap.type, name)) {
+ addProp(el, name, 'true');
+ }
+ }
+ }
+}
+
+function checkInFor (el) {
+ var parent = el;
+ while (parent) {
+ if (parent.for !== undefined) {
+ return true
+ }
+ parent = parent.parent;
+ }
+ return false
+}
+
+function parseModifiers (name) {
+ var match = name.match(modifierRE);
+ if (match) {
+ var ret = {};
+ match.forEach(function (m) { ret[m.slice(1)] = true; });
+ return ret
+ }
+}
+
+function makeAttrsMap (attrs) {
+ var map = {};
+ for (var i = 0, l = attrs.length; i < l; i++) {
+ if (
+ process.env.NODE_ENV !== 'production' &&
+ map[attrs[i].name] && !isIE && !isEdge
+ ) {
+ warn$1('duplicate attribute: ' + attrs[i].name);
+ }
+ map[attrs[i].name] = attrs[i].value;
+ }
+ return map
+}
+
+// for script (e.g. type="x/template") or style, do not decode content
+function isTextTag (el) {
+ return el.tag === 'script' || el.tag === 'style'
+}
+
+function isForbiddenTag (el) {
+ return (
+ el.tag === 'style' ||
+ (el.tag === 'script' && (
+ !el.attrsMap.type ||
+ el.attrsMap.type === 'text/javascript'
+ ))
+ )
+}
+
+var ieNSBug = /^xmlns:NS\d+/;
+var ieNSPrefix = /^NS\d+:/;
+
+/* istanbul ignore next */
+function guardIESVGBug (attrs) {
+ var res = [];
+ for (var i = 0; i < attrs.length; i++) {
+ var attr = attrs[i];
+ if (!ieNSBug.test(attr.name)) {
+ attr.name = attr.name.replace(ieNSPrefix, '');
+ res.push(attr);
+ }
+ }
+ return res
+}
+
+function checkForAliasModel (el, value) {
+ var _el = el;
+ while (_el) {
+ if (_el.for && _el.alias === value) {
+ warn$1(
+ "<" + (el.tag) + " v-model=\"" + value + "\">: " +
+ "You are binding v-model directly to a v-for iteration alias. " +
+ "This will not be able to modify the v-for source array because " +
+ "writing to the alias is like modifying a function local variable. " +
+ "Consider using an array of objects and use v-model on an object property instead."
+ );
+ }
+ _el = _el.parent;
+ }
+}
+
+/* */
+
+/**
+ * Expand input[v-model] with dyanmic type bindings into v-if-else chains
+ * Turn this:
+ * <input v-model="data[type]" :type="type">
+ * into this:
+ * <input v-if="type === 'checkbox'" type="checkbox" v-model="data[type]">
+ * <input v-else-if="type === 'radio'" type="radio" v-model="data[type]">
+ * <input v-else :type="type" v-model="data[type]">
+ */
+
+function preTransformNode (el, options) {
+ if (el.tag === 'input') {
+ var map = el.attrsMap;
+ if (!map['v-model']) {
+ return
+ }
+
+ var typeBinding;
+ if (map[':type'] || map['v-bind:type']) {
+ typeBinding = getBindingAttr(el, 'type');
+ }
+ if (!map.type && !typeBinding && map['v-bind']) {
+ typeBinding = "(" + (map['v-bind']) + ").type";
+ }
+
+ if (typeBinding) {
+ var ifCondition = getAndRemoveAttr(el, 'v-if', true);
+ var ifConditionExtra = ifCondition ? ("&&(" + ifCondition + ")") : "";
+ var hasElse = getAndRemoveAttr(el, 'v-else', true) != null;
+ var elseIfCondition = getAndRemoveAttr(el, 'v-else-if', true);
+ // 1. checkbox
+ var branch0 = cloneASTElement(el);
+ // process for on the main node
+ processFor(branch0);
+ addRawAttr(branch0, 'type', 'checkbox');
+ processElement(branch0, options);
+ branch0.processed = true; // prevent it from double-processed
+ branch0.if = "(" + typeBinding + ")==='checkbox'" + ifConditionExtra;
+ addIfCondition(branch0, {
+ exp: branch0.if,
+ block: branch0
+ });
+ // 2. add radio else-if condition
+ var branch1 = cloneASTElement(el);
+ getAndRemoveAttr(branch1, 'v-for', true);
+ addRawAttr(branch1, 'type', 'radio');
+ processElement(branch1, options);
+ addIfCondition(branch0, {
+ exp: "(" + typeBinding + ")==='radio'" + ifConditionExtra,
+ block: branch1
+ });
+ // 3. other
+ var branch2 = cloneASTElement(el);
+ getAndRemoveAttr(branch2, 'v-for', true);
+ addRawAttr(branch2, ':type', typeBinding);
+ processElement(branch2, options);
+ addIfCondition(branch0, {
+ exp: ifCondition,
+ block: branch2
+ });
+
+ if (hasElse) {
+ branch0.else = true;
+ } else if (elseIfCondition) {
+ branch0.elseif = elseIfCondition;
+ }
+
+ return branch0
+ }
+ }
+}
+
+function cloneASTElement (el) {
+ return createASTElement(el.tag, el.attrsList.slice(), el.parent)
+}
+
+var model = {
+ preTransformNode: preTransformNode
+}
+
+var modules = [
+ klass,
+ style,
+ model
+]
+
+/* */
+
+var warn$2;
+
+// in some cases, the event used has to be determined at runtime
+// so we used some reserved tokens during compile.
+var RANGE_TOKEN = '__r';
+
+
+function model$1 (
+ el,
+ dir,
+ _warn
+) {
+ warn$2 = _warn;
+ var value = dir.value;
+ var modifiers = dir.modifiers;
+ var tag = el.tag;
+ var type = el.attrsMap.type;
+
+ if (process.env.NODE_ENV !== 'production') {
+ // inputs with type="file" are read only and setting the input's
+ // value will throw an error.
+ if (tag === 'input' && type === 'file') {
+ warn$2(
+ "<" + (el.tag) + " v-model=\"" + value + "\" type=\"file\">:\n" +
+ "File inputs are read only. Use a v-on:change listener instead."
+ );
+ }
+ }
+
+ if (el.component) {
+ genComponentModel(el, value, modifiers);
+ // component v-model doesn't need extra runtime
+ return false
+ } else if (tag === 'select') {
+ genSelect(el, value, modifiers);
+ } else if (tag === 'input' && type === 'checkbox') {
+ genCheckboxModel(el, value, modifiers);
+ } else if (tag === 'input' && type === 'radio') {
+ genRadioModel(el, value, modifiers);
+ } else if (tag === 'input' || tag === 'textarea') {
+ genDefaultModel(el, value, modifiers);
+ } else if (!config.isReservedTag(tag)) {
+ genComponentModel(el, value, modifiers);
+ // component v-model doesn't need extra runtime
+ return false
+ } else if (process.env.NODE_ENV !== 'production') {
+ warn$2(
+ "<" + (el.tag) + " v-model=\"" + value + "\">: " +
+ "v-model is not supported on this element type. " +
+ 'If you are working with contenteditable, it\'s recommended to ' +
+ 'wrap a library dedicated for that purpose inside a custom component.'
+ );
+ }
+
+ // ensure runtime directive metadata
+ return true
+}
+
+function genCheckboxModel (
+ el,
+ value,
+ modifiers
+) {
+ var number = modifiers && modifiers.number;
+ var valueBinding = getBindingAttr(el, 'value') || 'null';
+ var trueValueBinding = getBindingAttr(el, 'true-value') || 'true';
+ var falseValueBinding = getBindingAttr(el, 'false-value') || 'false';
+ addProp(el, 'checked',
+ "Array.isArray(" + value + ")" +
+ "?_i(" + value + "," + valueBinding + ")>-1" + (
+ trueValueBinding === 'true'
+ ? (":(" + value + ")")
+ : (":_q(" + value + "," + trueValueBinding + ")")
+ )
+ );
+ addHandler(el, 'change',
+ "var $$a=" + value + "," +
+ '$$el=$event.target,' +
+ "$$c=$$el.checked?(" + trueValueBinding + "):(" + falseValueBinding + ");" +
+ 'if(Array.isArray($$a)){' +
+ "var $$v=" + (number ? '_n(' + valueBinding + ')' : valueBinding) + "," +
+ '$$i=_i($$a,$$v);' +
+ "if($$el.checked){$$i<0&&(" + (genAssignmentCode(value, '$$a.concat([$$v])')) + ")}" +
+ "else{$$i>-1&&(" + (genAssignmentCode(value, '$$a.slice(0,$$i).concat($$a.slice($$i+1))')) + ")}" +
+ "}else{" + (genAssignmentCode(value, '$$c')) + "}",
+ null, true
+ );
+}
+
+function genRadioModel (
+ el,
+ value,
+ modifiers
+) {
+ var number = modifiers && modifiers.number;
+ var valueBinding = getBindingAttr(el, 'value') || 'null';
+ valueBinding = number ? ("_n(" + valueBinding + ")") : valueBinding;
+ addProp(el, 'checked', ("_q(" + value + "," + valueBinding + ")"));
+ addHandler(el, 'change', genAssignmentCode(value, valueBinding), null, true);
+}
+
+function genSelect (
+ el,
+ value,
+ modifiers
+) {
+ var number = modifiers && modifiers.number;
+ var selectedVal = "Array.prototype.filter" +
+ ".call($event.target.options,function(o){return o.selected})" +
+ ".map(function(o){var val = \"_value\" in o ? o._value : o.value;" +
+ "return " + (number ? '_n(val)' : 'val') + "})";
+
+ var assignment = '$event.target.multiple ? $$selectedVal : $$selectedVal[0]';
+ var code = "var $$selectedVal = " + selectedVal + ";";
+ code = code + " " + (genAssignmentCode(value, assignment));
+ addHandler(el, 'change', code, null, true);
+}
+
+function genDefaultModel (
+ el,
+ value,
+ modifiers
+) {
+ var type = el.attrsMap.type;
+
+ // warn if v-bind:value conflicts with v-model
+ // except for inputs with v-bind:type
+ if (process.env.NODE_ENV !== 'production') {
+ var value$1 = el.attrsMap['v-bind:value'] || el.attrsMap[':value'];
+ var typeBinding = el.attrsMap['v-bind:type'] || el.attrsMap[':type'];
+ if (value$1 && !typeBinding) {
+ var binding = el.attrsMap['v-bind:value'] ? 'v-bind:value' : ':value';
+ warn$2(
+ binding + "=\"" + value$1 + "\" conflicts with v-model on the same element " +
+ 'because the latter already expands to a value binding internally'
+ );
+ }
+ }
+
+ var ref = modifiers || {};
+ var lazy = ref.lazy;
+ var number = ref.number;
+ var trim = ref.trim;
+ var needCompositionGuard = !lazy && type !== 'range';
+ var event = lazy
+ ? 'change'
+ : type === 'range'
+ ? RANGE_TOKEN
+ : 'input';
+
+ var valueExpression = '$event.target.value';
+ if (trim) {
+ valueExpression = "$event.target.value.trim()";
+ }
+ if (number) {
+ valueExpression = "_n(" + valueExpression + ")";
+ }
+
+ var code = genAssignmentCode(value, valueExpression);
+ if (needCompositionGuard) {
+ code = "if($event.target.composing)return;" + code;
+ }
+
+ addProp(el, 'value', ("(" + value + ")"));
+ addHandler(el, event, code, null, true);
+ if (trim || number) {
+ addHandler(el, 'blur', '$forceUpdate()');
+ }
+}
+
+/* */
+
+function text (el, dir) {
+ if (dir.value) {
+ addProp(el, 'textContent', ("_s(" + (dir.value) + ")"));
+ }
+}
+
+/* */
+
+function html (el, dir) {
+ if (dir.value) {
+ addProp(el, 'innerHTML', ("_s(" + (dir.value) + ")"));
+ }
+}
+
+var directives = {
+ model: model$1,
+ text: text,
+ html: html
+}
+
+/* */
+
+var baseOptions = {
+ expectHTML: true,
+ modules: modules,
+ directives: directives,
+ isPreTag: isPreTag,
+ isUnaryTag: isUnaryTag,
+ mustUseProp: mustUseProp,
+ canBeLeftOpenTag: canBeLeftOpenTag,
+ isReservedTag: isReservedTag,
+ getTagNamespace: getTagNamespace,
+ staticKeys: genStaticKeys(modules)
+};
+
+/* */
+
+var isStaticKey;
+var isPlatformReservedTag;
+
+var genStaticKeysCached = cached(genStaticKeys$1);
+
+/**
+ * Goal of the optimizer: walk the generated template AST tree
+ * and detect sub-trees that are purely static, i.e. parts of
+ * the DOM that never needs to change.
+ *
+ * Once we detect these sub-trees, we can:
+ *
+ * 1. Hoist them into constants, so that we no longer need to
+ * create fresh nodes for them on each re-render;
+ * 2. Completely skip them in the patching process.
+ */
+function optimize (root, options) {
+ if (!root) { return }
+ isStaticKey = genStaticKeysCached(options.staticKeys || '');
+ isPlatformReservedTag = options.isReservedTag || no;
+ // first pass: mark all non-static nodes.
+ markStatic(root);
+ // second pass: mark static roots.
+ markStaticRoots(root, false);
+}
+
+function genStaticKeys$1 (keys) {
+ return makeMap(
+ 'type,tag,attrsList,attrsMap,plain,parent,children,attrs' +
+ (keys ? ',' + keys : '')
+ )
+}
+
+function markStatic (node) {
+ node.static = isStatic(node);
+ if (node.type === 1) {
+ // do not make component slot content static. this avoids
+ // 1. components not able to mutate slot nodes
+ // 2. static slot content fails for hot-reloading
+ if (
+ !isPlatformReservedTag(node.tag) &&
+ node.tag !== 'slot' &&
+ node.attrsMap['inline-template'] == null
+ ) {
+ return
+ }
+ for (var i = 0, l = node.children.length; i < l; i++) {
+ var child = node.children[i];
+ markStatic(child);
+ if (!child.static) {
+ node.static = false;
+ }
+ }
+ if (node.ifConditions) {
+ for (var i$1 = 1, l$1 = node.ifConditions.length; i$1 < l$1; i$1++) {
+ var block = node.ifConditions[i$1].block;
+ markStatic(block);
+ if (!block.static) {
+ node.static = false;
+ }
+ }
+ }
+ }
+}
+
+function markStaticRoots (node, isInFor) {
+ if (node.type === 1) {
+ if (node.static || node.once) {
+ node.staticInFor = isInFor;
+ }
+ // For a node to qualify as a static root, it should have children that
+ // are not just static text. Otherwise the cost of hoisting out will
+ // outweigh the benefits and it's better off to just always render it fresh.
+ if (node.static && node.children.length && !(
+ node.children.length === 1 &&
+ node.children[0].type === 3
+ )) {
+ node.staticRoot = true;
+ return
+ } else {
+ node.staticRoot = false;
+ }
+ if (node.children) {
+ for (var i = 0, l = node.children.length; i < l; i++) {
+ markStaticRoots(node.children[i], isInFor || !!node.for);
+ }
+ }
+ if (node.ifConditions) {
+ for (var i$1 = 1, l$1 = node.ifConditions.length; i$1 < l$1; i$1++) {
+ markStaticRoots(node.ifConditions[i$1].block, isInFor);
+ }
+ }
+ }
+}
+
+function isStatic (node) {
+ if (node.type === 2) { // expression
+ return false
+ }
+ if (node.type === 3) { // text
+ return true
+ }
+ return !!(node.pre || (
+ !node.hasBindings && // no dynamic bindings
+ !node.if && !node.for && // not v-if or v-for or v-else
+ !isBuiltInTag(node.tag) && // not a built-in
+ isPlatformReservedTag(node.tag) && // not a component
+ !isDirectChildOfTemplateFor(node) &&
+ Object.keys(node).every(isStaticKey)
+ ))
+}
+
+function isDirectChildOfTemplateFor (node) {
+ while (node.parent) {
+ node = node.parent;
+ if (node.tag !== 'template') {
+ return false
+ }
+ if (node.for) {
+ return true
+ }
+ }
+ return false
+}
+
+/* */
+
+var fnExpRE = /^([\w$_]+|\([^)]*?\))\s*=>|^function\s*\(/;
+var simplePathRE = /^[A-Za-z_$][\w$]*(?:\.[A-Za-z_$][\w$]*|\['[^']*?']|\["[^"]*?"]|\[\d+]|\[[A-Za-z_$][\w$]*])*$/;
+
+// KeyboardEvent.keyCode aliases
+var keyCodes = {
+ esc: 27,
+ tab: 9,
+ enter: 13,
+ space: 32,
+ up: 38,
+ left: 37,
+ right: 39,
+ down: 40,
+ 'delete': [8, 46]
+};
+
+// KeyboardEvent.key aliases
+var keyNames = {
+ esc: 'Escape',
+ tab: 'Tab',
+ enter: 'Enter',
+ space: ' ',
+ // #7806: IE11 uses key names without `Arrow` prefix for arrow keys.
+ up: ['Up', 'ArrowUp'],
+ left: ['Left', 'ArrowLeft'],
+ right: ['Right', 'ArrowRight'],
+ down: ['Down', 'ArrowDown'],
+ 'delete': ['Backspace', 'Delete']
+};
+
+// #4868: modifiers that prevent the execution of the listener
+// need to explicitly return null so that we can determine whether to remove
+// the listener for .once
+var genGuard = function (condition) { return ("if(" + condition + ")return null;"); };
+
+var modifierCode = {
+ stop: '$event.stopPropagation();',
+ prevent: '$event.preventDefault();',
+ self: genGuard("$event.target !== $event.currentTarget"),
+ ctrl: genGuard("!$event.ctrlKey"),
+ shift: genGuard("!$event.shiftKey"),
+ alt: genGuard("!$event.altKey"),
+ meta: genGuard("!$event.metaKey"),
+ left: genGuard("'button' in $event && $event.button !== 0"),
+ middle: genGuard("'button' in $event && $event.button !== 1"),
+ right: genGuard("'button' in $event && $event.button !== 2")
+};
+
+function genHandlers (
+ events,
+ isNative,
+ warn
+) {
+ var res = isNative ? 'nativeOn:{' : 'on:{';
+ for (var name in events) {
+ res += "\"" + name + "\":" + (genHandler(name, events[name])) + ",";
+ }
+ return res.slice(0, -1) + '}'
+}
+
+function genHandler (
+ name,
+ handler
+) {
+ if (!handler) {
+ return 'function(){}'
+ }
+
+ if (Array.isArray(handler)) {
+ return ("[" + (handler.map(function (handler) { return genHandler(name, handler); }).join(',')) + "]")
+ }
+
+ var isMethodPath = simplePathRE.test(handler.value);
+ var isFunctionExpression = fnExpRE.test(handler.value);
+
+ if (!handler.modifiers) {
+ if (isMethodPath || isFunctionExpression) {
+ return handler.value
+ }
+ /* istanbul ignore if */
+ return ("function($event){" + (handler.value) + "}") // inline statement
+ } else {
+ var code = '';
+ var genModifierCode = '';
+ var keys = [];
+ for (var key in handler.modifiers) {
+ if (modifierCode[key]) {
+ genModifierCode += modifierCode[key];
+ // left/right
+ if (keyCodes[key]) {
+ keys.push(key);
+ }
+ } else if (key === 'exact') {
+ var modifiers = (handler.modifiers);
+ genModifierCode += genGuard(
+ ['ctrl', 'shift', 'alt', 'meta']
+ .filter(function (keyModifier) { return !modifiers[keyModifier]; })
+ .map(function (keyModifier) { return ("$event." + keyModifier + "Key"); })
+ .join('||')
+ );
+ } else {
+ keys.push(key);
+ }
+ }
+ if (keys.length) {
+ code += genKeyFilter(keys);
+ }
+ // Make sure modifiers like prevent and stop get executed after key filtering
+ if (genModifierCode) {
+ code += genModifierCode;
+ }
+ var handlerCode = isMethodPath
+ ? ("return " + (handler.value) + "($event)")
+ : isFunctionExpression
+ ? ("return (" + (handler.value) + ")($event)")
+ : handler.value;
+ /* istanbul ignore if */
+ return ("function($event){" + code + handlerCode + "}")
+ }
+}
+
+function genKeyFilter (keys) {
+ return ("if(!('button' in $event)&&" + (keys.map(genFilterCode).join('&&')) + ")return null;")
+}
+
+function genFilterCode (key) {
+ var keyVal = parseInt(key, 10);
+ if (keyVal) {
+ return ("$event.keyCode!==" + keyVal)
+ }
+ var keyCode = keyCodes[key];
+ var keyName = keyNames[key];
+ return (
+ "_k($event.keyCode," +
+ (JSON.stringify(key)) + "," +
+ (JSON.stringify(keyCode)) + "," +
+ "$event.key," +
+ "" + (JSON.stringify(keyName)) +
+ ")"
+ )
+}
+
+/* */
+
+function on (el, dir) {
+ if (process.env.NODE_ENV !== 'production' && dir.modifiers) {
+ warn("v-on without argument does not support modifiers.");
+ }
+ el.wrapListeners = function (code) { return ("_g(" + code + "," + (dir.value) + ")"); };
+}
+
+/* */
+
+function bind$1 (el, dir) {
+ el.wrapData = function (code) {
+ return ("_b(" + code + ",'" + (el.tag) + "'," + (dir.value) + "," + (dir.modifiers && dir.modifiers.prop ? 'true' : 'false') + (dir.modifiers && dir.modifiers.sync ? ',true' : '') + ")")
+ };
+}
+
+/* */
+
+var baseDirectives = {
+ on: on,
+ bind: bind$1,
+ cloak: noop
+}
+
+/* */
+
+var CodegenState = function CodegenState (options) {
+ this.options = options;
+ this.warn = options.warn || baseWarn;
+ this.transforms = pluckModuleFunction(options.modules, 'transformCode');
+ this.dataGenFns = pluckModuleFunction(options.modules, 'genData');
+ this.directives = extend(extend({}, baseDirectives), options.directives);
+ var isReservedTag = options.isReservedTag || no;
+ this.maybeComponent = function (el) { return !isReservedTag(el.tag); };
+ this.onceId = 0;
+ this.staticRenderFns = [];
+};
+
+
+
+function generate (
+ ast,
+ options
+) {
+ var state = new CodegenState(options);
+ var code = ast ? genElement(ast, state) : '_c("div")';
+ return {
+ render: ("with(this){return " + code + "}"),
+ staticRenderFns: state.staticRenderFns
+ }
+}
+
+function genElement (el, state) {
+ if (el.staticRoot && !el.staticProcessed) {
+ return genStatic(el, state)
+ } else if (el.once && !el.onceProcessed) {
+ return genOnce(el, state)
+ } else if (el.for && !el.forProcessed) {
+ return genFor(el, state)
+ } else if (el.if && !el.ifProcessed) {
+ return genIf(el, state)
+ } else if (el.tag === 'template' && !el.slotTarget) {
+ return genChildren(el, state) || 'void 0'
+ } else if (el.tag === 'slot') {
+ return genSlot(el, state)
+ } else {
+ // component or element
+ var code;
+ if (el.component) {
+ code = genComponent(el.component, el, state);
+ } else {
+ var data = el.plain ? undefined : genData$2(el, state);
+
+ var children = el.inlineTemplate ? null : genChildren(el, state, true);
+ code = "_c('" + (el.tag) + "'" + (data ? ("," + data) : '') + (children ? ("," + children) : '') + ")";
+ }
+ // module transforms
+ for (var i = 0; i < state.transforms.length; i++) {
+ code = state.transforms[i](el, code);
+ }
+ return code
+ }
+}
+
+// hoist static sub-trees out
+function genStatic (el, state) {
+ el.staticProcessed = true;
+ state.staticRenderFns.push(("with(this){return " + (genElement(el, state)) + "}"));
+ return ("_m(" + (state.staticRenderFns.length - 1) + (el.staticInFor ? ',true' : '') + ")")
+}
+
+// v-once
+function genOnce (el, state) {
+ el.onceProcessed = true;
+ if (el.if && !el.ifProcessed) {
+ return genIf(el, state)
+ } else if (el.staticInFor) {
+ var key = '';
+ var parent = el.parent;
+ while (parent) {
+ if (parent.for) {
+ key = parent.key;
+ break
+ }
+ parent = parent.parent;
+ }
+ if (!key) {
+ process.env.NODE_ENV !== 'production' && state.warn(
+ "v-once can only be used inside v-for that is keyed. "
+ );
+ return genElement(el, state)
+ }
+ return ("_o(" + (genElement(el, state)) + "," + (state.onceId++) + "," + key + ")")
+ } else {
+ return genStatic(el, state)
+ }
+}
+
+function genIf (
+ el,
+ state,
+ altGen,
+ altEmpty
+) {
+ el.ifProcessed = true; // avoid recursion
+ return genIfConditions(el.ifConditions.slice(), state, altGen, altEmpty)
+}
+
+function genIfConditions (
+ conditions,
+ state,
+ altGen,
+ altEmpty
+) {
+ if (!conditions.length) {
+ return altEmpty || '_e()'
+ }
+
+ var condition = conditions.shift();
+ if (condition.exp) {
+ return ("(" + (condition.exp) + ")?" + (genTernaryExp(condition.block)) + ":" + (genIfConditions(conditions, state, altGen, altEmpty)))
+ } else {
+ return ("" + (genTernaryExp(condition.block)))
+ }
+
+ // v-if with v-once should generate code like (a)?_m(0):_m(1)
+ function genTernaryExp (el) {
+ return altGen
+ ? altGen(el, state)
+ : el.once
+ ? genOnce(el, state)
+ : genElement(el, state)
+ }
+}
+
+function genFor (
+ el,
+ state,
+ altGen,
+ altHelper
+) {
+ var exp = el.for;
+ var alias = el.alias;
+ var iterator1 = el.iterator1 ? ("," + (el.iterator1)) : '';
+ var iterator2 = el.iterator2 ? ("," + (el.iterator2)) : '';
+
+ if (process.env.NODE_ENV !== 'production' &&
+ state.maybeComponent(el) &&
+ el.tag !== 'slot' &&
+ el.tag !== 'template' &&
+ !el.key
+ ) {
+ state.warn(
+ "<" + (el.tag) + " v-for=\"" + alias + " in " + exp + "\">: component lists rendered with " +
+ "v-for should have explicit keys. " +
+ "See https://vuejs.org/guide/list.html#key for more info.",
+ true /* tip */
+ );
+ }
+
+ el.forProcessed = true; // avoid recursion
+ return (altHelper || '_l') + "((" + exp + ")," +
+ "function(" + alias + iterator1 + iterator2 + "){" +
+ "return " + ((altGen || genElement)(el, state)) +
+ '})'
+}
+
+function genData$2 (el, state) {
+ var data = '{';
+
+ // directives first.
+ // directives may mutate the el's other properties before they are generated.
+ var dirs = genDirectives(el, state);
+ if (dirs) { data += dirs + ','; }
+
+ // key
+ if (el.key) {
+ data += "key:" + (el.key) + ",";
+ }
+ // ref
+ if (el.ref) {
+ data += "ref:" + (el.ref) + ",";
+ }
+ if (el.refInFor) {
+ data += "refInFor:true,";
+ }
+ // pre
+ if (el.pre) {
+ data += "pre:true,";
+ }
+ // record original tag name for components using "is" attribute
+ if (el.component) {
+ data += "tag:\"" + (el.tag) + "\",";
+ }
+ // module data generation functions
+ for (var i = 0; i < state.dataGenFns.length; i++) {
+ data += state.dataGenFns[i](el);
+ }
+ // attributes
+ if (el.attrs) {
+ data += "attrs:{" + (genProps(el.attrs)) + "},";
+ }
+ // DOM props
+ if (el.props) {
+ data += "domProps:{" + (genProps(el.props)) + "},";
+ }
+ // event handlers
+ if (el.events) {
+ data += (genHandlers(el.events, false, state.warn)) + ",";
+ }
+ if (el.nativeEvents) {
+ data += (genHandlers(el.nativeEvents, true, state.warn)) + ",";
+ }
+ // slot target
+ // only for non-scoped slots
+ if (el.slotTarget && !el.slotScope) {
+ data += "slot:" + (el.slotTarget) + ",";
+ }
+ // scoped slots
+ if (el.scopedSlots) {
+ data += (genScopedSlots(el.scopedSlots, state)) + ",";
+ }
+ // component v-model
+ if (el.model) {
+ data += "model:{value:" + (el.model.value) + ",callback:" + (el.model.callback) + ",expression:" + (el.model.expression) + "},";
+ }
+ // inline-template
+ if (el.inlineTemplate) {
+ var inlineTemplate = genInlineTemplate(el, state);
+ if (inlineTemplate) {
+ data += inlineTemplate + ",";
+ }
+ }
+ data = data.replace(/,$/, '') + '}';
+ // v-bind data wrap
+ if (el.wrapData) {
+ data = el.wrapData(data);
+ }
+ // v-on data wrap
+ if (el.wrapListeners) {
+ data = el.wrapListeners(data);
+ }
+ return data
+}
+
+function genDirectives (el, state) {
+ var dirs = el.directives;
+ if (!dirs) { return }
+ var res = 'directives:[';
+ var hasRuntime = false;
+ var i, l, dir, needRuntime;
+ for (i = 0, l = dirs.length; i < l; i++) {
+ dir = dirs[i];
+ needRuntime = true;
+ var gen = state.directives[dir.name];
+ if (gen) {
+ // compile-time directive that manipulates AST.
+ // returns true if it also needs a runtime counterpart.
+ needRuntime = !!gen(el, dir, state.warn);
+ }
+ if (needRuntime) {
+ hasRuntime = true;
+ res += "{name:\"" + (dir.name) + "\",rawName:\"" + (dir.rawName) + "\"" + (dir.value ? (",value:(" + (dir.value) + "),expression:" + (JSON.stringify(dir.value))) : '') + (dir.arg ? (",arg:\"" + (dir.arg) + "\"") : '') + (dir.modifiers ? (",modifiers:" + (JSON.stringify(dir.modifiers))) : '') + "},";
+ }
+ }
+ if (hasRuntime) {
+ return res.slice(0, -1) + ']'
+ }
+}
+
+function genInlineTemplate (el, state) {
+ var ast = el.children[0];
+ if (process.env.NODE_ENV !== 'production' && (
+ el.children.length !== 1 || ast.type !== 1
+ )) {
+ state.warn('Inline-template components must have exactly one child element.');
+ }
+ if (ast.type === 1) {
+ var inlineRenderFns = generate(ast, state.options);
+ return ("inlineTemplate:{render:function(){" + (inlineRenderFns.render) + "},staticRenderFns:[" + (inlineRenderFns.staticRenderFns.map(function (code) { return ("function(){" + code + "}"); }).join(',')) + "]}")
+ }
+}
+
+function genScopedSlots (
+ slots,
+ state
+) {
+ return ("scopedSlots:_u([" + (Object.keys(slots).map(function (key) {
+ return genScopedSlot(key, slots[key], state)
+ }).join(',')) + "])")
+}
+
+function genScopedSlot (
+ key,
+ el,
+ state
+) {
+ if (el.for && !el.forProcessed) {
+ return genForScopedSlot(key, el, state)
+ }
+ var fn = "function(" + (String(el.slotScope)) + "){" +
+ "return " + (el.tag === 'template'
+ ? el.if
+ ? ((el.if) + "?" + (genChildren(el, state) || 'undefined') + ":undefined")
+ : genChildren(el, state) || 'undefined'
+ : genElement(el, state)) + "}";
+ return ("{key:" + key + ",fn:" + fn + "}")
+}
+
+function genForScopedSlot (
+ key,
+ el,
+ state
+) {
+ var exp = el.for;
+ var alias = el.alias;
+ var iterator1 = el.iterator1 ? ("," + (el.iterator1)) : '';
+ var iterator2 = el.iterator2 ? ("," + (el.iterator2)) : '';
+ el.forProcessed = true; // avoid recursion
+ return "_l((" + exp + ")," +
+ "function(" + alias + iterator1 + iterator2 + "){" +
+ "return " + (genScopedSlot(key, el, state)) +
+ '})'
+}
+
+function genChildren (
+ el,
+ state,
+ checkSkip,
+ altGenElement,
+ altGenNode
+) {
+ var children = el.children;
+ if (children.length) {
+ var el$1 = children[0];
+ // optimize single v-for
+ if (children.length === 1 &&
+ el$1.for &&
+ el$1.tag !== 'template' &&
+ el$1.tag !== 'slot'
+ ) {
+ return (altGenElement || genElement)(el$1, state)
+ }
+ var normalizationType = checkSkip
+ ? getNormalizationType(children, state.maybeComponent)
+ : 0;
+ var gen = altGenNode || genNode;
+ return ("[" + (children.map(function (c) { return gen(c, state); }).join(',')) + "]" + (normalizationType ? ("," + normalizationType) : ''))
+ }
+}
+
+// determine the normalization needed for the children array.
+// 0: no normalization needed
+// 1: simple normalization needed (possible 1-level deep nested array)
+// 2: full normalization needed
+function getNormalizationType (
+ children,
+ maybeComponent
+) {
+ var res = 0;
+ for (var i = 0; i < children.length; i++) {
+ var el = children[i];
+ if (el.type !== 1) {
+ continue
+ }
+ if (needsNormalization(el) ||
+ (el.ifConditions && el.ifConditions.some(function (c) { return needsNormalization(c.block); }))) {
+ res = 2;
+ break
+ }
+ if (maybeComponent(el) ||
+ (el.ifConditions && el.ifConditions.some(function (c) { return maybeComponent(c.block); }))) {
+ res = 1;
+ }
+ }
+ return res
+}
+
+function needsNormalization (el) {
+ return el.for !== undefined || el.tag === 'template' || el.tag === 'slot'
+}
+
+function genNode (node, state) {
+ if (node.type === 1) {
+ return genElement(node, state)
+ } if (node.type === 3 && node.isComment) {
+ return genComment(node)
+ } else {
+ return genText(node)
+ }
+}
+
+function genText (text) {
+ return ("_v(" + (text.type === 2
+ ? text.expression // no need for () because already wrapped in _s()
+ : transformSpecialNewlines(JSON.stringify(text.text))) + ")")
+}
+
+function genComment (comment) {
+ return ("_e(" + (JSON.stringify(comment.text)) + ")")
+}
+
+function genSlot (el, state) {
+ var slotName = el.slotName || '"default"';
+ var children = genChildren(el, state);
+ var res = "_t(" + slotName + (children ? ("," + children) : '');
+ var attrs = el.attrs && ("{" + (el.attrs.map(function (a) { return ((camelize(a.name)) + ":" + (a.value)); }).join(',')) + "}");
+ var bind$$1 = el.attrsMap['v-bind'];
+ if ((attrs || bind$$1) && !children) {
+ res += ",null";
+ }
+ if (attrs) {
+ res += "," + attrs;
+ }
+ if (bind$$1) {
+ res += (attrs ? '' : ',null') + "," + bind$$1;
+ }
+ return res + ')'
+}
+
+// componentName is el.component, take it as argument to shun flow's pessimistic refinement
+function genComponent (
+ componentName,
+ el,
+ state
+) {
+ var children = el.inlineTemplate ? null : genChildren(el, state, true);
+ return ("_c(" + componentName + "," + (genData$2(el, state)) + (children ? ("," + children) : '') + ")")
+}
+
+function genProps (props) {
+ var res = '';
+ for (var i = 0; i < props.length; i++) {
+ var prop = props[i];
+ /* istanbul ignore if */
+ {
+ res += "\"" + (prop.name) + "\":" + (transformSpecialNewlines(prop.value)) + ",";
+ }
+ }
+ return res.slice(0, -1)
+}
+
+// #3895, #4268
+function transformSpecialNewlines (text) {
+ return text
+ .replace(/\u2028/g, '\\u2028')
+ .replace(/\u2029/g, '\\u2029')
+}
+
+/* */
+
+// these keywords should not appear inside expressions, but operators like
+// typeof, instanceof and in are allowed
+var prohibitedKeywordRE = new RegExp('\\b' + (
+ 'do,if,for,let,new,try,var,case,else,with,await,break,catch,class,const,' +
+ 'super,throw,while,yield,delete,export,import,return,switch,default,' +
+ 'extends,finally,continue,debugger,function,arguments'
+).split(',').join('\\b|\\b') + '\\b');
+
+// these unary operators should not be used as property/method names
+var unaryOperatorsRE = new RegExp('\\b' + (
+ 'delete,typeof,void'
+).split(',').join('\\s*\\([^\\)]*\\)|\\b') + '\\s*\\([^\\)]*\\)');
+
+// strip strings in expressions
+var stripStringRE = /'(?:[^'\\]|\\.)*'|"(?:[^"\\]|\\.)*"|`(?:[^`\\]|\\.)*\$\{|\}(?:[^`\\]|\\.)*`|`(?:[^`\\]|\\.)*`/g;
+
+// detect problematic expressions in a template
+function detectErrors (ast) {
+ var errors = [];
+ if (ast) {
+ checkNode(ast, errors);
+ }
+ return errors
+}
+
+function checkNode (node, errors) {
+ if (node.type === 1) {
+ for (var name in node.attrsMap) {
+ if (dirRE.test(name)) {
+ var value = node.attrsMap[name];
+ if (value) {
+ if (name === 'v-for') {
+ checkFor(node, ("v-for=\"" + value + "\""), errors);
+ } else if (onRE.test(name)) {
+ checkEvent(value, (name + "=\"" + value + "\""), errors);
+ } else {
+ checkExpression(value, (name + "=\"" + value + "\""), errors);
+ }
+ }
+ }
+ }
+ if (node.children) {
+ for (var i = 0; i < node.children.length; i++) {
+ checkNode(node.children[i], errors);
+ }
+ }
+ } else if (node.type === 2) {
+ checkExpression(node.expression, node.text, errors);
+ }
+}
+
+function checkEvent (exp, text, errors) {
+ var stipped = exp.replace(stripStringRE, '');
+ var keywordMatch = stipped.match(unaryOperatorsRE);
+ if (keywordMatch && stipped.charAt(keywordMatch.index - 1) !== '$') {
+ errors.push(
+ "avoid using JavaScript unary operator as property name: " +
+ "\"" + (keywordMatch[0]) + "\" in expression " + (text.trim())
+ );
+ }
+ checkExpression(exp, text, errors);
+}
+
+function checkFor (node, text, errors) {
+ checkExpression(node.for || '', text, errors);
+ checkIdentifier(node.alias, 'v-for alias', text, errors);
+ checkIdentifier(node.iterator1, 'v-for iterator', text, errors);
+ checkIdentifier(node.iterator2, 'v-for iterator', text, errors);
+}
+
+function checkIdentifier (
+ ident,
+ type,
+ text,
+ errors
+) {
+ if (typeof ident === 'string') {
+ try {
+ new Function(("var " + ident + "=_"));
+ } catch (e) {
+ errors.push(("invalid " + type + " \"" + ident + "\" in expression: " + (text.trim())));
+ }
+ }
+}
+
+function checkExpression (exp, text, errors) {
+ try {
+ new Function(("return " + exp));
+ } catch (e) {
+ var keywordMatch = exp.replace(stripStringRE, '').match(prohibitedKeywordRE);
+ if (keywordMatch) {
+ errors.push(
+ "avoid using JavaScript keyword as property name: " +
+ "\"" + (keywordMatch[0]) + "\"\n Raw expression: " + (text.trim())
+ );
+ } else {
+ errors.push(
+ "invalid expression: " + (e.message) + " in\n\n" +
+ " " + exp + "\n\n" +
+ " Raw expression: " + (text.trim()) + "\n"
+ );
+ }
+ }
+}
+
+/* */
+
+function createFunction (code, errors) {
+ try {
+ return new Function(code)
+ } catch (err) {
+ errors.push({ err: err, code: code });
+ return noop
+ }
+}
+
+function createCompileToFunctionFn (compile) {
+ var cache = Object.create(null);
+
+ return function compileToFunctions (
+ template,
+ options,
+ vm
+ ) {
+ options = extend({}, options);
+ var warn$$1 = options.warn || warn;
+ delete options.warn;
+
+ /* istanbul ignore if */
+ if (process.env.NODE_ENV !== 'production') {
+ // detect possible CSP restriction
+ try {
+ new Function('return 1');
+ } catch (e) {
+ if (e.toString().match(/unsafe-eval|CSP/)) {
+ warn$$1(
+ 'It seems you are using the standalone build of Vue.js in an ' +
+ 'environment with Content Security Policy that prohibits unsafe-eval. ' +
+ 'The template compiler cannot work in this environment. Consider ' +
+ 'relaxing the policy to allow unsafe-eval or pre-compiling your ' +
+ 'templates into render functions.'
+ );
+ }
+ }
+ }
+
+ // check cache
+ var key = options.delimiters
+ ? String(options.delimiters) + template
+ : template;
+ if (cache[key]) {
+ return cache[key]
+ }
+
+ // compile
+ var compiled = compile(template, options);
+
+ // check compilation errors/tips
+ if (process.env.NODE_ENV !== 'production') {
+ if (compiled.errors && compiled.errors.length) {
+ warn$$1(
+ "Error compiling template:\n\n" + template + "\n\n" +
+ compiled.errors.map(function (e) { return ("- " + e); }).join('\n') + '\n',
+ vm
+ );
+ }
+ if (compiled.tips && compiled.tips.length) {
+ compiled.tips.forEach(function (msg) { return tip(msg, vm); });
+ }
+ }
+
+ // turn code into functions
+ var res = {};
+ var fnGenErrors = [];
+ res.render = createFunction(compiled.render, fnGenErrors);
+ res.staticRenderFns = compiled.staticRenderFns.map(function (code) {
+ return createFunction(code, fnGenErrors)
+ });
+
+ // check function generation errors.
+ // this should only happen if there is a bug in the compiler itself.
+ // mostly for codegen development use
+ /* istanbul ignore if */
+ if (process.env.NODE_ENV !== 'production') {
+ if ((!compiled.errors || !compiled.errors.length) && fnGenErrors.length) {
+ warn$$1(
+ "Failed to generate render function:\n\n" +
+ fnGenErrors.map(function (ref) {
+ var err = ref.err;
+ var code = ref.code;
+
+ return ((err.toString()) + " in\n\n" + code + "\n");
+ }).join('\n'),
+ vm
+ );
+ }
+ }
+
+ return (cache[key] = res)
+ }
+}
+
+/* */
+
+function createCompilerCreator (baseCompile) {
+ return function createCompiler (baseOptions) {
+ function compile (
+ template,
+ options
+ ) {
+ var finalOptions = Object.create(baseOptions);
+ var errors = [];
+ var tips = [];
+ finalOptions.warn = function (msg, tip) {
+ (tip ? tips : errors).push(msg);
+ };
+
+ if (options) {
+ // merge custom modules
+ if (options.modules) {
+ finalOptions.modules =
+ (baseOptions.modules || []).concat(options.modules);
+ }
+ // merge custom directives
+ if (options.directives) {
+ finalOptions.directives = extend(
+ Object.create(baseOptions.directives || null),
+ options.directives
+ );
+ }
+ // copy other options
+ for (var key in options) {
+ if (key !== 'modules' && key !== 'directives') {
+ finalOptions[key] = options[key];
+ }
+ }
+ }
+
+ var compiled = baseCompile(template, finalOptions);
+ if (process.env.NODE_ENV !== 'production') {
+ errors.push.apply(errors, detectErrors(compiled.ast));
+ }
+ compiled.errors = errors;
+ compiled.tips = tips;
+ return compiled
+ }
+
+ return {
+ compile: compile,
+ compileToFunctions: createCompileToFunctionFn(compile)
+ }
+ }
+}
+
+/* */
+
+// `createCompilerCreator` allows creating compilers that use alternative
+// parser/optimizer/codegen, e.g the SSR optimizing compiler.
+// Here we just export a default compiler using the default parts.
+var createCompiler = createCompilerCreator(function baseCompile (
+ template,
+ options
+) {
+ var ast = parse(template.trim(), options);
+ if (options.optimize !== false) {
+ optimize(ast, options);
+ }
+ var code = generate(ast, options);
+ return {
+ ast: ast,
+ render: code.render,
+ staticRenderFns: code.staticRenderFns
+ }
+});
+
+/* */
+
+var ref = createCompiler(baseOptions);
+var compile = ref.compile;
+var compileToFunctions = ref.compileToFunctions;
+
+/* */
+
+var isAttr = makeMap(
+ 'accept,accept-charset,accesskey,action,align,alt,async,autocomplete,' +
+ 'autofocus,autoplay,autosave,bgcolor,border,buffered,challenge,charset,' +
+ 'checked,cite,class,code,codebase,color,cols,colspan,content,http-equiv,' +
+ 'name,contenteditable,contextmenu,controls,coords,data,datetime,default,' +
+ 'defer,dir,dirname,disabled,download,draggable,dropzone,enctype,method,for,' +
+ 'form,formaction,headers,height,hidden,high,href,hreflang,http-equiv,' +
+ 'icon,id,ismap,itemprop,keytype,kind,label,lang,language,list,loop,low,' +
+ 'manifest,max,maxlength,media,method,GET,POST,min,multiple,email,file,' +
+ 'muted,name,novalidate,open,optimum,pattern,ping,placeholder,poster,' +
+ 'preload,radiogroup,readonly,rel,required,reversed,rows,rowspan,sandbox,' +
+ 'scope,scoped,seamless,selected,shape,size,type,text,password,sizes,span,' +
+ 'spellcheck,src,srcdoc,srclang,srcset,start,step,style,summary,tabindex,' +
+ 'target,title,type,usemap,value,width,wrap'
+);
+
+
+
+/* istanbul ignore next */
+var isRenderableAttr = function (name) {
+ return (
+ isAttr(name) ||
+ name.indexOf('data-') === 0 ||
+ name.indexOf('aria-') === 0
+ )
+};
+var propsToAttrMap = {
+ acceptCharset: 'accept-charset',
+ className: 'class',
+ htmlFor: 'for',
+ httpEquiv: 'http-equiv'
+};
+
+var ESC = {
+ '<': '&lt;',
+ '>': '&gt;',
+ '"': '&quot;',
+ '&': '&amp;'
+};
+
+function escape (s) {
+ return s.replace(/[<>"&]/g, escapeChar)
+}
+
+function escapeChar (a) {
+ return ESC[a] || a
+}
+
+/* */
+
+var plainStringRE = /^"(?:[^"\\]|\\.)*"$|^'(?:[^'\\]|\\.)*'$/;
+
+// let the model AST transform translate v-model into appropriate
+// props bindings
+function applyModelTransform (el, state) {
+ if (el.directives) {
+ for (var i = 0; i < el.directives.length; i++) {
+ var dir = el.directives[i];
+ if (dir.name === 'model') {
+ state.directives.model(el, dir, state.warn);
+ // remove value for textarea as its converted to text
+ if (el.tag === 'textarea' && el.props) {
+ el.props = el.props.filter(function (p) { return p.name !== 'value'; });
+ }
+ break
+ }
+ }
+ }
+}
+
+function genAttrSegments (
+ attrs
+) {
+ return attrs.map(function (ref) {
+ var name = ref.name;
+ var value = ref.value;
+
+ return genAttrSegment(name, value);
+ })
+}
+
+function genDOMPropSegments (
+ props,
+ attrs
+) {
+ var segments = [];
+ props.forEach(function (ref) {
+ var name = ref.name;
+ var value = ref.value;
+
+ name = propsToAttrMap[name] || name.toLowerCase();
+ if (isRenderableAttr(name) &&
+ !(attrs && attrs.some(function (a) { return a.name === name; }))
+ ) {
+ segments.push(genAttrSegment(name, value));
+ }
+ });
+ return segments
+}
+
+function genAttrSegment (name, value) {
+ if (plainStringRE.test(value)) {
+ // force double quote
+ value = value.replace(/^'|'$/g, '"');
+ // force enumerated attr to "true"
+ if (isEnumeratedAttr(name) && value !== "\"false\"") {
+ value = "\"true\"";
+ }
+ return {
+ type: RAW,
+ value: isBooleanAttr(name)
+ ? (" " + name + "=\"" + name + "\"")
+ : value === '""'
+ ? (" " + name)
+ : (" " + name + "=\"" + (JSON.parse(value)) + "\"")
+ }
+ } else {
+ return {
+ type: EXPRESSION,
+ value: ("_ssrAttr(" + (JSON.stringify(name)) + "," + value + ")")
+ }
+ }
+}
+
+function genClassSegments (
+ staticClass,
+ classBinding
+) {
+ if (staticClass && !classBinding) {
+ return [{ type: RAW, value: (" class=" + staticClass) }]
+ } else {
+ return [{
+ type: EXPRESSION,
+ value: ("_ssrClass(" + (staticClass || 'null') + "," + (classBinding || 'null') + ")")
+ }]
+ }
+}
+
+function genStyleSegments (
+ staticStyle,
+ parsedStaticStyle,
+ styleBinding,
+ vShowExpression
+) {
+ if (staticStyle && !styleBinding && !vShowExpression) {
+ return [{ type: RAW, value: (" style=" + (JSON.stringify(staticStyle))) }]
+ } else {
+ return [{
+ type: EXPRESSION,
+ value: ("_ssrStyle(" + (parsedStaticStyle || 'null') + "," + (styleBinding || 'null') + ", " + (vShowExpression
+ ? ("{ display: (" + vShowExpression + ") ? '' : 'none' }")
+ : 'null') + ")")
+ }]
+ }
+}
+
+/* */
+
+/**
+ * In SSR, the vdom tree is generated only once and never patched, so
+ * we can optimize most element / trees into plain string render functions.
+ * The SSR optimizer walks the AST tree to detect optimizable elements and trees.
+ *
+ * The criteria for SSR optimizability is quite a bit looser than static tree
+ * detection (which is designed for client re-render). In SSR we bail only for
+ * components/slots/custom directives.
+ */
+
+// optimizability constants
+var optimizability = {
+ FALSE: 0, // whole sub tree un-optimizable
+ FULL: 1, // whole sub tree optimizable
+ SELF: 2, // self optimizable but has some un-optimizable children
+ CHILDREN: 3, // self un-optimizable but have fully optimizable children
+ PARTIAL: 4 // self un-optimizable with some un-optimizable children
+};
+
+var isPlatformReservedTag$1;
+
+function optimize$1 (root, options) {
+ if (!root) { return }
+ isPlatformReservedTag$1 = options.isReservedTag || no;
+ walk(root, true);
+}
+
+function walk (node, isRoot) {
+ if (isUnOptimizableTree(node)) {
+ node.ssrOptimizability = optimizability.FALSE;
+ return
+ }
+ // root node or nodes with custom directives should always be a VNode
+ var selfUnoptimizable = isRoot || hasCustomDirective(node);
+ var check = function (child) {
+ if (child.ssrOptimizability !== optimizability.FULL) {
+ node.ssrOptimizability = selfUnoptimizable
+ ? optimizability.PARTIAL
+ : optimizability.SELF;
+ }
+ };
+ if (selfUnoptimizable) {
+ node.ssrOptimizability = optimizability.CHILDREN;
+ }
+ if (node.type === 1) {
+ for (var i = 0, l = node.children.length; i < l; i++) {
+ var child = node.children[i];
+ walk(child);
+ check(child);
+ }
+ if (node.ifConditions) {
+ for (var i$1 = 1, l$1 = node.ifConditions.length; i$1 < l$1; i$1++) {
+ var block = node.ifConditions[i$1].block;
+ walk(block, isRoot);
+ check(block);
+ }
+ }
+ if (node.ssrOptimizability == null ||
+ (!isRoot && (node.attrsMap['v-html'] || node.attrsMap['v-text']))
+ ) {
+ node.ssrOptimizability = optimizability.FULL;
+ } else {
+ node.children = optimizeSiblings(node);
+ }
+ } else {
+ node.ssrOptimizability = optimizability.FULL;
+ }
+}
+
+function optimizeSiblings (el) {
+ var children = el.children;
+ var optimizedChildren = [];
+
+ var currentOptimizableGroup = [];
+ var pushGroup = function () {
+ if (currentOptimizableGroup.length) {
+ optimizedChildren.push({
+ type: 1,
+ parent: el,
+ tag: 'template',
+ attrsList: [],
+ attrsMap: {},
+ children: currentOptimizableGroup,
+ ssrOptimizability: optimizability.FULL
+ });
+ }
+ currentOptimizableGroup = [];
+ };
+
+ for (var i = 0; i < children.length; i++) {
+ var c = children[i];
+ if (c.ssrOptimizability === optimizability.FULL) {
+ currentOptimizableGroup.push(c);
+ } else {
+ // wrap fully-optimizable adjacent siblings inside a template tag
+ // so that they can be optimized into a single ssrNode by codegen
+ pushGroup();
+ optimizedChildren.push(c);
+ }
+ }
+ pushGroup();
+ return optimizedChildren
+}
+
+function isUnOptimizableTree (node) {
+ if (node.type === 2 || node.type === 3) { // text or expression
+ return false
+ }
+ return (
+ isBuiltInTag(node.tag) || // built-in (slot, component)
+ !isPlatformReservedTag$1(node.tag) || // custom component
+ !!node.component || // "is" component
+ isSelectWithModel(node) // <select v-model> requires runtime inspection
+ )
+}
+
+var isBuiltInDir = makeMap('text,html,show,on,bind,model,pre,cloak,once');
+
+function hasCustomDirective (node) {
+ return (
+ node.type === 1 &&
+ node.directives &&
+ node.directives.some(function (d) { return !isBuiltInDir(d.name); })
+ )
+}
+
+// <select v-model> cannot be optimized because it requires a runtime check
+// to determine proper selected option
+function isSelectWithModel (node) {
+ return (
+ node.type === 1 &&
+ node.tag === 'select' &&
+ node.directives != null &&
+ node.directives.some(function (d) { return d.name === 'model'; })
+ )
+}
+
+/* */
+
+// The SSR codegen is essentially extending the default codegen to handle
+// SSR-optimizable nodes and turn them into string render fns. In cases where
+// a node is not optimizable it simply falls back to the default codegen.
+
+// segment types
+var RAW = 0;
+var INTERPOLATION = 1;
+var EXPRESSION = 2;
+
+function generate$1 (
+ ast,
+ options
+) {
+ var state = new CodegenState(options);
+ var code = ast ? genSSRElement(ast, state) : '_c("div")';
+ return {
+ render: ("with(this){return " + code + "}"),
+ staticRenderFns: state.staticRenderFns
+ }
+}
+
+function genSSRElement (el, state) {
+ if (el.for && !el.forProcessed) {
+ return genFor(el, state, genSSRElement)
+ } else if (el.if && !el.ifProcessed) {
+ return genIf(el, state, genSSRElement)
+ } else if (el.tag === 'template' && !el.slotTarget) {
+ return el.ssrOptimizability === optimizability.FULL
+ ? genChildrenAsStringNode(el, state)
+ : genSSRChildren(el, state) || 'void 0'
+ }
+
+ switch (el.ssrOptimizability) {
+ case optimizability.FULL:
+ // stringify whole tree
+ return genStringElement(el, state)
+ case optimizability.SELF:
+ // stringify self and check children
+ return genStringElementWithChildren(el, state)
+ case optimizability.CHILDREN:
+ // generate self as VNode and stringify children
+ return genNormalElement(el, state, true)
+ case optimizability.PARTIAL:
+ // generate self as VNode and check children
+ return genNormalElement(el, state, false)
+ default:
+ // bail whole tree
+ return genElement(el, state)
+ }
+}
+
+function genNormalElement (el, state, stringifyChildren) {
+ var data = el.plain ? undefined : genData$2(el, state);
+ var children = stringifyChildren
+ ? ("[" + (genChildrenAsStringNode(el, state)) + "]")
+ : genSSRChildren(el, state, true);
+ return ("_c('" + (el.tag) + "'" + (data ? ("," + data) : '') + (children ? ("," + children) : '') + ")")
+}
+
+function genSSRChildren (el, state, checkSkip) {
+ return genChildren(el, state, checkSkip, genSSRElement, genSSRNode)
+}
+
+function genSSRNode (el, state) {
+ return el.type === 1
+ ? genSSRElement(el, state)
+ : genText(el)
+}
+
+function genChildrenAsStringNode (el, state) {
+ return el.children.length
+ ? ("_ssrNode(" + (flattenSegments(childrenToSegments(el, state))) + ")")
+ : ''
+}
+
+function genStringElement (el, state) {
+ return ("_ssrNode(" + (elementToString(el, state)) + ")")
+}
+
+function genStringElementWithChildren (el, state) {
+ var children = genSSRChildren(el, state, true);
+ return ("_ssrNode(" + (flattenSegments(elementToOpenTagSegments(el, state))) + ",\"</" + (el.tag) + ">\"" + (children ? ("," + children) : '') + ")")
+}
+
+function elementToString (el, state) {
+ return ("(" + (flattenSegments(elementToSegments(el, state))) + ")")
+}
+
+function elementToSegments (el, state) {
+ // v-for / v-if
+ if (el.for && !el.forProcessed) {
+ el.forProcessed = true;
+ return [{
+ type: EXPRESSION,
+ value: genFor(el, state, elementToString, '_ssrList')
+ }]
+ } else if (el.if && !el.ifProcessed) {
+ el.ifProcessed = true;
+ return [{
+ type: EXPRESSION,
+ value: genIf(el, state, elementToString, '"<!---->"')
+ }]
+ } else if (el.tag === 'template') {
+ return childrenToSegments(el, state)
+ }
+
+ var openSegments = elementToOpenTagSegments(el, state);
+ var childrenSegments = childrenToSegments(el, state);
+ var ref = state.options;
+ var isUnaryTag = ref.isUnaryTag;
+ var close = (isUnaryTag && isUnaryTag(el.tag))
+ ? []
+ : [{ type: RAW, value: ("</" + (el.tag) + ">") }];
+ return openSegments.concat(childrenSegments, close)
+}
+
+function elementToOpenTagSegments (el, state) {
+ applyModelTransform(el, state);
+ var binding;
+ var segments = [{ type: RAW, value: ("<" + (el.tag)) }];
+ // attrs
+ if (el.attrs) {
+ segments.push.apply(segments, genAttrSegments(el.attrs));
+ }
+ // domProps
+ if (el.props) {
+ segments.push.apply(segments, genDOMPropSegments(el.props, el.attrs));
+ }
+ // v-bind="object"
+ if ((binding = el.attrsMap['v-bind'])) {
+ segments.push({ type: EXPRESSION, value: ("_ssrAttrs(" + binding + ")") });
+ }
+ // v-bind.prop="object"
+ if ((binding = el.attrsMap['v-bind.prop'])) {
+ segments.push({ type: EXPRESSION, value: ("_ssrDOMProps(" + binding + ")") });
+ }
+ // class
+ if (el.staticClass || el.classBinding) {
+ segments.push.apply(
+ segments,
+ genClassSegments(el.staticClass, el.classBinding)
+ );
+ }
+ // style & v-show
+ if (el.staticStyle || el.styleBinding || el.attrsMap['v-show']) {
+ segments.push.apply(
+ segments,
+ genStyleSegments(
+ el.attrsMap.style,
+ el.staticStyle,
+ el.styleBinding,
+ el.attrsMap['v-show']
+ )
+ );
+ }
+ // _scopedId
+ if (state.options.scopeId) {
+ segments.push({ type: RAW, value: (" " + (state.options.scopeId)) });
+ }
+ segments.push({ type: RAW, value: ">" });
+ return segments
+}
+
+function childrenToSegments (el, state) {
+ var binding;
+ if ((binding = el.attrsMap['v-html'])) {
+ return [{ type: EXPRESSION, value: ("_s(" + binding + ")") }]
+ }
+ if ((binding = el.attrsMap['v-text'])) {
+ return [{ type: INTERPOLATION, value: ("_s(" + binding + ")") }]
+ }
+ if (el.tag === 'textarea' && (binding = el.attrsMap['v-model'])) {
+ return [{ type: INTERPOLATION, value: ("_s(" + binding + ")") }]
+ }
+ return el.children
+ ? nodesToSegments(el.children, state)
+ : []
+}
+
+function nodesToSegments (
+ children,
+ state
+) {
+ var segments = [];
+ for (var i = 0; i < children.length; i++) {
+ var c = children[i];
+ if (c.type === 1) {
+ segments.push.apply(segments, elementToSegments(c, state));
+ } else if (c.type === 2) {
+ segments.push({ type: INTERPOLATION, value: c.expression });
+ } else if (c.type === 3) {
+ segments.push({ type: RAW, value: escape(c.text) });
+ }
+ }
+ return segments
+}
+
+function flattenSegments (segments) {
+ var mergedSegments = [];
+ var textBuffer = '';
+
+ var pushBuffer = function () {
+ if (textBuffer) {
+ mergedSegments.push(JSON.stringify(textBuffer));
+ textBuffer = '';
+ }
+ };
+
+ for (var i = 0; i < segments.length; i++) {
+ var s = segments[i];
+ if (s.type === RAW) {
+ textBuffer += s.value;
+ } else if (s.type === INTERPOLATION) {
+ pushBuffer();
+ mergedSegments.push(("_ssrEscape(" + (s.value) + ")"));
+ } else if (s.type === EXPRESSION) {
+ pushBuffer();
+ mergedSegments.push(("(" + (s.value) + ")"));
+ }
+ }
+ pushBuffer();
+
+ return mergedSegments.join('+')
+}
+
+/* */
+
+var createCompiler$1 = createCompilerCreator(function baseCompile (
+ template,
+ options
+) {
+ var ast = parse(template.trim(), options);
+ optimize$1(ast, options);
+ var code = generate$1(ast, options);
+ return {
+ ast: ast,
+ render: code.render,
+ staticRenderFns: code.staticRenderFns
+ }
+});
+
+/* */
+
+var ref$1 = createCompiler$1(baseOptions);
+var compile$1 = ref$1.compile;
+var compileToFunctions$1 = ref$1.compileToFunctions;
+
+/* */
+
+exports.parseComponent = parseComponent;
+exports.compile = compile;
+exports.compileToFunctions = compileToFunctions;
+exports.ssrCompile = compile$1;
+exports.ssrCompileToFunctions = compileToFunctions$1;
generated by cgit v1.2.3 (git 2.25.1) at 2026-10-15 23:03:41 +0000