.',\n el.rawAttrsMap['class']\n );\n }\n }\n if (staticClass) {\n el.staticClass = JSON.stringify(staticClass);\n }\n var classBinding = getBindingAttr(el, 'class', false /* getStatic */);\n if (classBinding) {\n el.classBinding = classBinding;\n }\n}\n\nfunction genData (el) {\n var data = '';\n if (el.staticClass) {\n data += \"staticClass:\" + (el.staticClass) + \",\";\n }\n if (el.classBinding) {\n data += \"class:\" + (el.classBinding) + \",\";\n }\n return data\n}\n\nvar klass$1 = {\n staticKeys: ['staticClass'],\n transformNode: transformNode,\n genData: genData\n};\n\n/* */\n\nfunction transformNode$1 (el, options) {\n var warn = options.warn || baseWarn;\n var staticStyle = getAndRemoveAttr(el, 'style');\n if (staticStyle) {\n /* istanbul ignore if */\n if (process.env.NODE_ENV !== 'production') {\n var res = parseText(staticStyle, options.delimiters);\n if (res) {\n warn(\n \"style=\\\"\" + staticStyle + \"\\\": \" +\n 'Interpolation inside attributes has been removed. ' +\n 'Use v-bind or the colon shorthand instead. For example, ' +\n 'instead of
, use
.',\n el.rawAttrsMap['style']\n );\n }\n }\n el.staticStyle = JSON.stringify(parseStyleText(staticStyle));\n }\n\n var styleBinding = getBindingAttr(el, 'style', false /* getStatic */);\n if (styleBinding) {\n el.styleBinding = styleBinding;\n }\n}\n\nfunction genData$1 (el) {\n var data = '';\n if (el.staticStyle) {\n data += \"staticStyle:\" + (el.staticStyle) + \",\";\n }\n if (el.styleBinding) {\n data += \"style:(\" + (el.styleBinding) + \"),\";\n }\n return data\n}\n\nvar style$1 = {\n staticKeys: ['staticStyle'],\n transformNode: transformNode$1,\n genData: genData$1\n};\n\n/* */\n\nvar decoder;\n\nvar he = {\n decode: function decode (html) {\n decoder = decoder || document.createElement('div');\n decoder.innerHTML = html;\n return decoder.textContent\n }\n};\n\n/* */\n\nvar isUnaryTag = makeMap(\n 'area,base,br,col,embed,frame,hr,img,input,isindex,keygen,' +\n 'link,meta,param,source,track,wbr'\n);\n\n// Elements that you can, intentionally, leave open\n// (and which close themselves)\nvar canBeLeftOpenTag = makeMap(\n 'colgroup,dd,dt,li,options,p,td,tfoot,th,thead,tr,source'\n);\n\n// HTML5 tags https://html.spec.whatwg.org/multipage/indices.html#elements-3\n// Phrasing Content https://html.spec.whatwg.org/multipage/dom.html#phrasing-content\nvar isNonPhrasingTag = makeMap(\n 'address,article,aside,base,blockquote,body,caption,col,colgroup,dd,' +\n 'details,dialog,div,dl,dt,fieldset,figcaption,figure,footer,form,' +\n 'h1,h2,h3,h4,h5,h6,head,header,hgroup,hr,html,legend,li,menuitem,meta,' +\n 'optgroup,option,param,rp,rt,source,style,summary,tbody,td,tfoot,th,thead,' +\n 'title,tr,track'\n);\n\n/**\n * Not type-checking this file because it's mostly vendor code.\n */\n\n// Regular Expressions for parsing tags and attributes\nvar attribute = /^\\s*([^\\s\"'<>\\/=]+)(?:\\s*(=)\\s*(?:\"([^\"]*)\"+|'([^']*)'+|([^\\s\"'=<>`]+)))?/;\nvar dynamicArgAttribute = /^\\s*((?:v-[\\w-]+:|@|:|#)\\[[^=]+\\][^\\s\"'<>\\/=]*)(?:\\s*(=)\\s*(?:\"([^\"]*)\"+|'([^']*)'+|([^\\s\"'=<>`]+)))?/;\nvar ncname = \"[a-zA-Z_][\\\\-\\\\.0-9_a-zA-Z\" + (unicodeRegExp.source) + \"]*\";\nvar qnameCapture = \"((?:\" + ncname + \"\\\\:)?\" + ncname + \")\";\nvar startTagOpen = new RegExp((\"^<\" + qnameCapture));\nvar startTagClose = /^\\s*(\\/?)>/;\nvar endTag = new RegExp((\"^<\\\\/\" + qnameCapture + \"[^>]*>\"));\nvar doctype = /^]+>/i;\n// #7298: escape - to avoid being passed as HTML comment when inlined in page\nvar comment = /^',\n '"': '\"',\n '&': '&',\n '
': '\\n',\n ' ': '\\t',\n ''': \"'\"\n};\nvar encodedAttr = /&(?:lt|gt|quot|amp|#39);/g;\nvar encodedAttrWithNewLines = /&(?:lt|gt|quot|amp|#39|#10|#9);/g;\n\n// #5992\nvar isIgnoreNewlineTag = makeMap('pre,textarea', true);\nvar shouldIgnoreFirstNewline = function (tag, html) { return tag && isIgnoreNewlineTag(tag) && html[0] === '\\n'; };\n\nfunction decodeAttr (value, shouldDecodeNewlines) {\n var re = shouldDecodeNewlines ? encodedAttrWithNewLines : encodedAttr;\n return value.replace(re, function (match) { return decodingMap[match]; })\n}\n\nfunction parseHTML (html, options) {\n var stack = [];\n var expectHTML = options.expectHTML;\n var isUnaryTag$$1 = options.isUnaryTag || no;\n var canBeLeftOpenTag$$1 = options.canBeLeftOpenTag || no;\n var index = 0;\n var last, lastTag;\n while (html) {\n last = html;\n // Make sure we're not in a plaintext content element like script/style\n if (!lastTag || !isPlainTextElement(lastTag)) {\n var textEnd = html.indexOf('<');\n if (textEnd === 0) {\n // Comment:\n if (comment.test(html)) {\n var commentEnd = html.indexOf('-->');\n\n if (commentEnd >= 0) {\n if (options.shouldKeepComment) {\n options.comment(html.substring(4, commentEnd), index, index + commentEnd + 3);\n }\n advance(commentEnd + 3);\n continue\n }\n }\n\n // http://en.wikipedia.org/wiki/Conditional_comment#Downlevel-revealed_conditional_comment\n if (conditionalComment.test(html)) {\n var conditionalEnd = html.indexOf(']>');\n\n if (conditionalEnd >= 0) {\n advance(conditionalEnd + 2);\n continue\n }\n }\n\n // Doctype:\n var doctypeMatch = html.match(doctype);\n if (doctypeMatch) {\n advance(doctypeMatch[0].length);\n continue\n }\n\n // End tag:\n var endTagMatch = html.match(endTag);\n if (endTagMatch) {\n var curIndex = index;\n advance(endTagMatch[0].length);\n parseEndTag(endTagMatch[1], curIndex, index);\n continue\n }\n\n // Start tag:\n var startTagMatch = parseStartTag();\n if (startTagMatch) {\n handleStartTag(startTagMatch);\n if (shouldIgnoreFirstNewline(startTagMatch.tagName, html)) {\n advance(1);\n }\n continue\n }\n }\n\n var text = (void 0), rest = (void 0), next = (void 0);\n if (textEnd >= 0) {\n rest = html.slice(textEnd);\n while (\n !endTag.test(rest) &&\n !startTagOpen.test(rest) &&\n !comment.test(rest) &&\n !conditionalComment.test(rest)\n ) {\n // < in plain text, be forgiving and treat it as text\n next = rest.indexOf('<', 1);\n if (next < 0) { break }\n textEnd += next;\n rest = html.slice(textEnd);\n }\n text = html.substring(0, textEnd);\n }\n\n if (textEnd < 0) {\n text = html;\n }\n\n if (text) {\n advance(text.length);\n }\n\n if (options.chars && text) {\n options.chars(text, index - text.length, index);\n }\n } else {\n var endTagLength = 0;\n var stackedTag = lastTag.toLowerCase();\n var reStackedTag = reCache[stackedTag] || (reCache[stackedTag] = new RegExp('([\\\\s\\\\S]*?)(' + stackedTag + '[^>]*>)', 'i'));\n var rest$1 = html.replace(reStackedTag, function (all, text, endTag) {\n endTagLength = endTag.length;\n if (!isPlainTextElement(stackedTag) && stackedTag !== 'noscript') {\n text = text\n .replace(//g, '$1') // #7298\n .replace(//g, '$1');\n }\n if (shouldIgnoreFirstNewline(stackedTag, text)) {\n text = text.slice(1);\n }\n if (options.chars) {\n options.chars(text);\n }\n return ''\n });\n index += html.length - rest$1.length;\n html = rest$1;\n parseEndTag(stackedTag, index - endTagLength, index);\n }\n\n if (html === last) {\n options.chars && options.chars(html);\n if (process.env.NODE_ENV !== 'production' && !stack.length && options.warn) {\n options.warn((\"Mal-formatted tag at end of template: \\\"\" + html + \"\\\"\"), { start: index + html.length });\n }\n break\n }\n }\n\n // Clean up any remaining tags\n parseEndTag();\n\n function advance (n) {\n index += n;\n html = html.substring(n);\n }\n\n function parseStartTag () {\n var start = html.match(startTagOpen);\n if (start) {\n var match = {\n tagName: start[1],\n attrs: [],\n start: index\n };\n advance(start[0].length);\n var end, attr;\n while (!(end = html.match(startTagClose)) && (attr = html.match(dynamicArgAttribute) || html.match(attribute))) {\n attr.start = index;\n advance(attr[0].length);\n attr.end = index;\n match.attrs.push(attr);\n }\n if (end) {\n match.unarySlash = end[1];\n advance(end[0].length);\n match.end = index;\n return match\n }\n }\n }\n\n function handleStartTag (match) {\n var tagName = match.tagName;\n var unarySlash = match.unarySlash;\n\n if (expectHTML) {\n if (lastTag === 'p' && isNonPhrasingTag(tagName)) {\n parseEndTag(lastTag);\n }\n if (canBeLeftOpenTag$$1(tagName) && lastTag === tagName) {\n parseEndTag(tagName);\n }\n }\n\n var unary = isUnaryTag$$1(tagName) || !!unarySlash;\n\n var l = match.attrs.length;\n var attrs = new Array(l);\n for (var i = 0; i < l; i++) {\n var args = match.attrs[i];\n var value = args[3] || args[4] || args[5] || '';\n var shouldDecodeNewlines = tagName === 'a' && args[1] === 'href'\n ? options.shouldDecodeNewlinesForHref\n : options.shouldDecodeNewlines;\n attrs[i] = {\n name: args[1],\n value: decodeAttr(value, shouldDecodeNewlines)\n };\n if (process.env.NODE_ENV !== 'production' && options.outputSourceRange) {\n attrs[i].start = args.start + args[0].match(/^\\s*/).length;\n attrs[i].end = args.end;\n }\n }\n\n if (!unary) {\n stack.push({ tag: tagName, lowerCasedTag: tagName.toLowerCase(), attrs: attrs, start: match.start, end: match.end });\n lastTag = tagName;\n }\n\n if (options.start) {\n options.start(tagName, attrs, unary, match.start, match.end);\n }\n }\n\n function parseEndTag (tagName, start, end) {\n var pos, lowerCasedTagName;\n if (start == null) { start = index; }\n if (end == null) { end = index; }\n\n // Find the closest opened tag of the same type\n if (tagName) {\n lowerCasedTagName = tagName.toLowerCase();\n for (pos = stack.length - 1; pos >= 0; pos--) {\n if (stack[pos].lowerCasedTag === lowerCasedTagName) {\n break\n }\n }\n } else {\n // If no tag name is provided, clean shop\n pos = 0;\n }\n\n if (pos >= 0) {\n // Close all the open elements, up the stack\n for (var i = stack.length - 1; i >= pos; i--) {\n if (process.env.NODE_ENV !== 'production' &&\n (i > pos || !tagName) &&\n options.warn\n ) {\n options.warn(\n (\"tag <\" + (stack[i].tag) + \"> has no matching end tag.\"),\n { start: stack[i].start, end: stack[i].end }\n );\n }\n if (options.end) {\n options.end(stack[i].tag, start, end);\n }\n }\n\n // Remove the open elements from the stack\n stack.length = pos;\n lastTag = pos && stack[pos - 1].tag;\n } else if (lowerCasedTagName === 'br') {\n if (options.start) {\n options.start(tagName, [], true, start, end);\n }\n } else if (lowerCasedTagName === 'p') {\n if (options.start) {\n options.start(tagName, [], false, start, end);\n }\n if (options.end) {\n options.end(tagName, start, end);\n }\n }\n }\n}\n\n/* */\n\nvar onRE = /^@|^v-on:/;\nvar dirRE = /^v-|^@|^:|^#/;\nvar forAliasRE = /([\\s\\S]*?)\\s+(?:in|of)\\s+([\\s\\S]*)/;\nvar forIteratorRE = /,([^,\\}\\]]*)(?:,([^,\\}\\]]*))?$/;\nvar stripParensRE = /^\\(|\\)$/g;\nvar dynamicArgRE = /^\\[.*\\]$/;\n\nvar argRE = /:(.*)$/;\nvar bindRE = /^:|^\\.|^v-bind:/;\nvar modifierRE = /\\.[^.\\]]+(?=[^\\]]*$)/g;\n\nvar slotRE = /^v-slot(:|$)|^#/;\n\nvar lineBreakRE = /[\\r\\n]/;\nvar whitespaceRE$1 = /\\s+/g;\n\nvar invalidAttributeRE = /[\\s\"'<>\\/=]/;\n\nvar decodeHTMLCached = cached(he.decode);\n\nvar emptySlotScopeToken = \"_empty_\";\n\n// configurable state\nvar warn$2;\nvar delimiters;\nvar transforms;\nvar preTransforms;\nvar postTransforms;\nvar platformIsPreTag;\nvar platformMustUseProp;\nvar platformGetTagNamespace;\nvar maybeComponent;\n\nfunction createASTElement (\n tag,\n attrs,\n parent\n) {\n return {\n type: 1,\n tag: tag,\n attrsList: attrs,\n attrsMap: makeAttrsMap(attrs),\n rawAttrsMap: {},\n parent: parent,\n children: []\n }\n}\n\n/**\n * Convert HTML string to AST.\n */\nfunction parse (\n template,\n options\n) {\n warn$2 = options.warn || baseWarn;\n\n platformIsPreTag = options.isPreTag || no;\n platformMustUseProp = options.mustUseProp || no;\n platformGetTagNamespace = options.getTagNamespace || no;\n var isReservedTag = options.isReservedTag || no;\n maybeComponent = function (el) { return !!el.component || !isReservedTag(el.tag); };\n\n transforms = pluckModuleFunction(options.modules, 'transformNode');\n preTransforms = pluckModuleFunction(options.modules, 'preTransformNode');\n postTransforms = pluckModuleFunction(options.modules, 'postTransformNode');\n\n delimiters = options.delimiters;\n\n var stack = [];\n var preserveWhitespace = options.preserveWhitespace !== false;\n var whitespaceOption = options.whitespace;\n var root;\n var currentParent;\n var inVPre = false;\n var inPre = false;\n var warned = false;\n\n function warnOnce (msg, range) {\n if (!warned) {\n warned = true;\n warn$2(msg, range);\n }\n }\n\n function closeElement (element) {\n trimEndingWhitespace(element);\n if (!inVPre && !element.processed) {\n element = processElement(element, options);\n }\n // tree management\n if (!stack.length && element !== root) {\n // allow root elements with v-if, v-else-if and v-else\n if (root.if && (element.elseif || element.else)) {\n if (process.env.NODE_ENV !== 'production') {\n checkRootConstraints(element);\n }\n addIfCondition(root, {\n exp: element.elseif,\n block: element\n });\n } else if (process.env.NODE_ENV !== 'production') {\n warnOnce(\n \"Component template should contain exactly one root element. \" +\n \"If you are using v-if on multiple elements, \" +\n \"use v-else-if to chain them instead.\",\n { start: element.start }\n );\n }\n }\n if (currentParent && !element.forbidden) {\n if (element.elseif || element.else) {\n processIfConditions(element, currentParent);\n } else {\n if (element.slotScope) {\n // scoped slot\n // keep it in the children list so that v-else(-if) conditions can\n // find it as the prev node.\n var name = element.slotTarget || '\"default\"'\n ;(currentParent.scopedSlots || (currentParent.scopedSlots = {}))[name] = element;\n }\n currentParent.children.push(element);\n element.parent = currentParent;\n }\n }\n\n // final children cleanup\n // filter out scoped slots\n element.children = element.children.filter(function (c) { return !(c).slotScope; });\n // remove trailing whitespace node again\n trimEndingWhitespace(element);\n\n // check pre state\n if (element.pre) {\n inVPre = false;\n }\n if (platformIsPreTag(element.tag)) {\n inPre = false;\n }\n // apply post-transforms\n for (var i = 0; i < postTransforms.length; i++) {\n postTransforms[i](element, options);\n }\n }\n\n function trimEndingWhitespace (el) {\n // remove trailing whitespace node\n if (!inPre) {\n var lastNode;\n while (\n (lastNode = el.children[el.children.length - 1]) &&\n lastNode.type === 3 &&\n lastNode.text === ' '\n ) {\n el.children.pop();\n }\n }\n }\n\n function checkRootConstraints (el) {\n if (el.tag === 'slot' || el.tag === 'template') {\n warnOnce(\n \"Cannot use <\" + (el.tag) + \"> as component root element because it may \" +\n 'contain multiple nodes.',\n { start: el.start }\n );\n }\n if (el.attrsMap.hasOwnProperty('v-for')) {\n warnOnce(\n 'Cannot use v-for on stateful component root element because ' +\n 'it renders multiple elements.',\n el.rawAttrsMap['v-for']\n );\n }\n }\n\n parseHTML(template, {\n warn: warn$2,\n expectHTML: options.expectHTML,\n isUnaryTag: options.isUnaryTag,\n canBeLeftOpenTag: options.canBeLeftOpenTag,\n shouldDecodeNewlines: options.shouldDecodeNewlines,\n shouldDecodeNewlinesForHref: options.shouldDecodeNewlinesForHref,\n shouldKeepComment: options.comments,\n outputSourceRange: options.outputSourceRange,\n start: function start (tag, attrs, unary, start$1, end) {\n // check namespace.\n // inherit parent ns if there is one\n var ns = (currentParent && currentParent.ns) || platformGetTagNamespace(tag);\n\n // handle IE svg bug\n /* istanbul ignore if */\n if (isIE && ns === 'svg') {\n attrs = guardIESVGBug(attrs);\n }\n\n var element = createASTElement(tag, attrs, currentParent);\n if (ns) {\n element.ns = ns;\n }\n\n if (process.env.NODE_ENV !== 'production') {\n if (options.outputSourceRange) {\n element.start = start$1;\n element.end = end;\n element.rawAttrsMap = element.attrsList.reduce(function (cumulated, attr) {\n cumulated[attr.name] = attr;\n return cumulated\n }, {});\n }\n attrs.forEach(function (attr) {\n if (invalidAttributeRE.test(attr.name)) {\n warn$2(\n \"Invalid dynamic argument expression: attribute names cannot contain \" +\n \"spaces, quotes, <, >, / or =.\",\n {\n start: attr.start + attr.name.indexOf(\"[\"),\n end: attr.start + attr.name.length\n }\n );\n }\n });\n }\n\n if (isForbiddenTag(element) && !isServerRendering()) {\n element.forbidden = true;\n process.env.NODE_ENV !== 'production' && warn$2(\n 'Templates should only be responsible for mapping the state to the ' +\n 'UI. Avoid placing tags with side-effects in your templates, such as ' +\n \"<\" + tag + \">\" + ', as they will not be parsed.',\n { start: element.start }\n );\n }\n\n // apply pre-transforms\n for (var i = 0; i < preTransforms.length; i++) {\n element = preTransforms[i](element, options) || element;\n }\n\n if (!inVPre) {\n processPre(element);\n if (element.pre) {\n inVPre = true;\n }\n }\n if (platformIsPreTag(element.tag)) {\n inPre = true;\n }\n if (inVPre) {\n processRawAttrs(element);\n } else if (!element.processed) {\n // structural directives\n processFor(element);\n processIf(element);\n processOnce(element);\n }\n\n if (!root) {\n root = element;\n if (process.env.NODE_ENV !== 'production') {\n checkRootConstraints(root);\n }\n }\n\n if (!unary) {\n currentParent = element;\n stack.push(element);\n } else {\n closeElement(element);\n }\n },\n\n end: function end (tag, start, end$1) {\n var element = stack[stack.length - 1];\n // pop stack\n stack.length -= 1;\n currentParent = stack[stack.length - 1];\n if (process.env.NODE_ENV !== 'production' && options.outputSourceRange) {\n element.end = end$1;\n }\n closeElement(element);\n },\n\n chars: function chars (text, start, end) {\n if (!currentParent) {\n if (process.env.NODE_ENV !== 'production') {\n if (text === template) {\n warnOnce(\n 'Component template requires a root element, rather than just text.',\n { start: start }\n );\n } else if ((text = text.trim())) {\n warnOnce(\n (\"text \\\"\" + text + \"\\\" outside root element will be ignored.\"),\n { start: start }\n );\n }\n }\n return\n }\n // IE textarea placeholder bug\n /* istanbul ignore if */\n if (isIE &&\n currentParent.tag === 'textarea' &&\n currentParent.attrsMap.placeholder === text\n ) {\n return\n }\n var children = currentParent.children;\n if (inPre || text.trim()) {\n text = isTextTag(currentParent) ? text : decodeHTMLCached(text);\n } else if (!children.length) {\n // remove the whitespace-only node right after an opening tag\n text = '';\n } else if (whitespaceOption) {\n if (whitespaceOption === 'condense') {\n // in condense mode, remove the whitespace node if it contains\n // line break, otherwise condense to a single space\n text = lineBreakRE.test(text) ? '' : ' ';\n } else {\n text = ' ';\n }\n } else {\n text = preserveWhitespace ? ' ' : '';\n }\n if (text) {\n if (!inPre && whitespaceOption === 'condense') {\n // condense consecutive whitespaces into single space\n text = text.replace(whitespaceRE$1, ' ');\n }\n var res;\n var child;\n if (!inVPre && text !== ' ' && (res = parseText(text, delimiters))) {\n child = {\n type: 2,\n expression: res.expression,\n tokens: res.tokens,\n text: text\n };\n } else if (text !== ' ' || !children.length || children[children.length - 1].text !== ' ') {\n child = {\n type: 3,\n text: text\n };\n }\n if (child) {\n if (process.env.NODE_ENV !== 'production' && options.outputSourceRange) {\n child.start = start;\n child.end = end;\n }\n children.push(child);\n }\n }\n },\n comment: function comment (text, start, end) {\n // adding anything as a sibling to the root node is forbidden\n // comments should still be allowed, but ignored\n if (currentParent) {\n var child = {\n type: 3,\n text: text,\n isComment: true\n };\n if (process.env.NODE_ENV !== 'production' && options.outputSourceRange) {\n child.start = start;\n child.end = end;\n }\n currentParent.children.push(child);\n }\n }\n });\n return root\n}\n\nfunction processPre (el) {\n if (getAndRemoveAttr(el, 'v-pre') != null) {\n el.pre = true;\n }\n}\n\nfunction processRawAttrs (el) {\n var list = el.attrsList;\n var len = list.length;\n if (len) {\n var attrs = el.attrs = new Array(len);\n for (var i = 0; i < len; i++) {\n attrs[i] = {\n name: list[i].name,\n value: JSON.stringify(list[i].value)\n };\n if (list[i].start != null) {\n attrs[i].start = list[i].start;\n attrs[i].end = list[i].end;\n }\n }\n } else if (!el.pre) {\n // non root node in pre blocks with no attributes\n el.plain = true;\n }\n}\n\nfunction processElement (\n element,\n options\n) {\n processKey(element);\n\n // determine whether this is a plain element after\n // removing structural attributes\n element.plain = (\n !element.key &&\n !element.scopedSlots &&\n !element.attrsList.length\n );\n\n processRef(element);\n processSlotContent(element);\n processSlotOutlet(element);\n processComponent(element);\n for (var i = 0; i < transforms.length; i++) {\n element = transforms[i](element, options) || element;\n }\n processAttrs(element);\n return element\n}\n\nfunction processKey (el) {\n var exp = getBindingAttr(el, 'key');\n if (exp) {\n if (process.env.NODE_ENV !== 'production') {\n if (el.tag === 'template') {\n warn$2(\n \" cannot be keyed. Place the key on real elements instead.\",\n getRawBindingAttr(el, 'key')\n );\n }\n if (el.for) {\n var iterator = el.iterator2 || el.iterator1;\n var parent = el.parent;\n if (iterator && iterator === exp && parent && parent.tag === 'transition-group') {\n warn$2(\n \"Do not use v-for index as key on children, \" +\n \"this is the same as not using keys.\",\n getRawBindingAttr(el, 'key'),\n true /* tip */\n );\n }\n }\n }\n el.key = exp;\n }\n}\n\nfunction processRef (el) {\n var ref = getBindingAttr(el, 'ref');\n if (ref) {\n el.ref = ref;\n el.refInFor = checkInFor(el);\n }\n}\n\nfunction processFor (el) {\n var exp;\n if ((exp = getAndRemoveAttr(el, 'v-for'))) {\n var res = parseFor(exp);\n if (res) {\n extend(el, res);\n } else if (process.env.NODE_ENV !== 'production') {\n warn$2(\n (\"Invalid v-for expression: \" + exp),\n el.rawAttrsMap['v-for']\n );\n }\n }\n}\n\n\n\nfunction parseFor (exp) {\n var inMatch = exp.match(forAliasRE);\n if (!inMatch) { return }\n var res = {};\n res.for = inMatch[2].trim();\n var alias = inMatch[1].trim().replace(stripParensRE, '');\n var iteratorMatch = alias.match(forIteratorRE);\n if (iteratorMatch) {\n res.alias = alias.replace(forIteratorRE, '').trim();\n res.iterator1 = iteratorMatch[1].trim();\n if (iteratorMatch[2]) {\n res.iterator2 = iteratorMatch[2].trim();\n }\n } else {\n res.alias = alias;\n }\n return res\n}\n\nfunction processIf (el) {\n var exp = getAndRemoveAttr(el, 'v-if');\n if (exp) {\n el.if = exp;\n addIfCondition(el, {\n exp: exp,\n block: el\n });\n } else {\n if (getAndRemoveAttr(el, 'v-else') != null) {\n el.else = true;\n }\n var elseif = getAndRemoveAttr(el, 'v-else-if');\n if (elseif) {\n el.elseif = elseif;\n }\n }\n}\n\nfunction processIfConditions (el, parent) {\n var prev = findPrevElement(parent.children);\n if (prev && prev.if) {\n addIfCondition(prev, {\n exp: el.elseif,\n block: el\n });\n } else if (process.env.NODE_ENV !== 'production') {\n warn$2(\n \"v-\" + (el.elseif ? ('else-if=\"' + el.elseif + '\"') : 'else') + \" \" +\n \"used on element <\" + (el.tag) + \"> without corresponding v-if.\",\n el.rawAttrsMap[el.elseif ? 'v-else-if' : 'v-else']\n );\n }\n}\n\nfunction findPrevElement (children) {\n var i = children.length;\n while (i--) {\n if (children[i].type === 1) {\n return children[i]\n } else {\n if (process.env.NODE_ENV !== 'production' && children[i].text !== ' ') {\n warn$2(\n \"text \\\"\" + (children[i].text.trim()) + \"\\\" between v-if and v-else(-if) \" +\n \"will be ignored.\",\n children[i]\n );\n }\n children.pop();\n }\n }\n}\n\nfunction addIfCondition (el, condition) {\n if (!el.ifConditions) {\n el.ifConditions = [];\n }\n el.ifConditions.push(condition);\n}\n\nfunction processOnce (el) {\n var once$$1 = getAndRemoveAttr(el, 'v-once');\n if (once$$1 != null) {\n el.once = true;\n }\n}\n\n// handle content being passed to a component as slot,\n// e.g.