'use strict';
Object.defineProperty(exports, '__esModule', { value: true });
var deindent = require('de-indent');
var he = require('he');
function _interopDefaultLegacy (e) { return e && typeof e === 'object' && 'default' in e ? e : { 'default': e }; }
var deindent__default = /*#__PURE__*/_interopDefaultLegacy(deindent);
var he__default = /*#__PURE__*/_interopDefaultLegacy(he);
const emptyObject = Object.freeze({});
const isArray = Array.isArray;
// These helpers produce better VM code in JS engines due to their
// explicitness and function inlining.
function isUndef(v) {
return v === undefined || v === null;
}
function isDef(v) {
return v !== undefined && v !== null;
}
function isTrue(v) {
return v === true;
}
function isFalse(v) {
return v === false;
}
/**
* Check if value is primitive.
*/
function isPrimitive(value) {
return (typeof value === 'string' ||
typeof value === 'number' ||
// $flow-disable-line
typeof value === 'symbol' ||
typeof value === 'boolean');
}
function isFunction(value) {
return typeof value === 'function';
}
/**
* 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].
*/
const _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) {
const n = parseFloat(String(val));
return n >= 0 && Math.floor(n) === n && isFinite(val);
}
function isPromise(val) {
return (isDef(val) &&
typeof val.then === 'function' &&
typeof val.catch === 'function');
}
/**
* Convert a value to a string that is actually rendered.
*/
function toString(val) {
return val == null
? ''
: Array.isArray(val) || (isPlainObject(val) && val.toString === _toString)
? JSON.stringify(val, null, 2)
: String(val);
}
/**
* Convert an input value to a number for persistence.
* If the conversion fails, return original string.
*/
function toNumber(val) {
const n = parseFloat(val);
return isNaN(n) ? val : n;
}
/**
* Make a map and return a function for checking if a key
* is in that map.
*/
function makeMap(str, expectsLowerCase) {
const map = Object.create(null);
const list = str.split(',');
for (let i = 0; i < list.length; i++) {
map[list[i]] = true;
}
return expectsLowerCase ? val => map[val.toLowerCase()] : val => map[val];
}
/**
* Check if a tag is a built-in tag.
*/
const isBuiltInTag = makeMap('slot,component', true);
/**
* Check if an attribute is a reserved attribute.
*/
const isReservedAttribute = makeMap('key,ref,slot,slot-scope,is');
/**
* Check whether an object has the property.
*/
const hasOwnProperty = Object.prototype.hasOwnProperty;
function hasOwn(obj, key) {
return hasOwnProperty.call(obj, key);
}
/**
* Create a cached version of a pure function.
*/
function cached(fn) {
const cache = Object.create(null);
return function cachedFn(str) {
const hit = cache[str];
return hit || (cache[str] = fn(str));
};
}
/**
* Camelize a hyphen-delimited string.
*/
const camelizeRE = /-(\w)/g;
const camelize = cached((str) => {
return str.replace(camelizeRE, (_, c) => (c ? c.toUpperCase() : ''));
});
/**
* Capitalize a string.
*/
const capitalize = cached((str) => {
return str.charAt(0).toUpperCase() + str.slice(1);
});
/**
* Hyphenate a camelCase string.
*/
const hyphenateRE = /\B([A-Z])/g;
const hyphenate = cached((str) => {
return str.replace(hyphenateRE, '-$1').toLowerCase();
});
/**
* Mix properties into target object.
*/
function extend(to, _from) {
for (const key in _from) {
to[key] = _from[key];
}
return to;
}
/**
* Merge an Array of Objects into a single Object.
*/
function toObject(arr) {
const res = {};
for (let i = 0; i < arr.length; i++) {
if (arr[i]) {
extend(res, arr[i]);
}
}
return res;
}
/* eslint-disable no-unused-vars */
/**
* 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.
*/
const no = (a, b, c) => false;
/* eslint-enable no-unused-vars */
/**
* Return the same value.
*/
const identity = (_) => _;
/**
* Generate a string containing static keys from compiler modules.
*/
function genStaticKeys$1(modules) {
return modules
.reduce((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?
*/
function looseEqual(a, b) {
if (a === b)
return true;
const isObjectA = isObject(a);
const isObjectB = isObject(b);
if (isObjectA && isObjectB) {
try {
const isArrayA = Array.isArray(a);
const isArrayB = Array.isArray(b);
if (isArrayA && isArrayB) {
return (a.length === b.length &&
a.every((e, i) => {
return looseEqual(e, b[i]);
}));
}
else if (a instanceof Date && b instanceof Date) {
return a.getTime() === b.getTime();
}
else if (!isArrayA && !isArrayB) {
const keysA = Object.keys(a);
const keysB = Object.keys(b);
return (keysA.length === keysB.length &&
keysA.every(key => {
return looseEqual(a[key], b[key]);
}));
}
else {
/* istanbul ignore next */
return false;
}
}
catch (e) {
/* istanbul ignore next */
return false;
}
}
else if (!isObjectA && !isObjectB) {
return String(a) === String(b);
}
else {
return false;
}
}
/**
* Return the first index at which a loosely equal value can be
* found in the array (if value is a plain object, the array must
* contain an object of the same shape), or -1 if it is not present.
*/
function looseIndexOf(arr, val) {
for (let i = 0; i < arr.length; i++) {
if (looseEqual(arr[i], val))
return i;
}
return -1;
}
// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/is#polyfill
function hasChanged(x, y) {
if (x === y) {
return x === 0 && 1 / x !== 1 / y;
}
else {
return x === x || y === y;
}
}
const 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)
const 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
const 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');
/**
* unicode letters used for parsing html tags, component names and property paths.
* using https://www.w3.org/TR/html53/semantics-scripting.html#potentialcustomelementname
* skipping \u10000-\uEFFFF due to it freezing up PhantomJS
*/
const unicodeRegExp = /a-zA-Z\u00B7\u00C0-\u00D6\u00D8-\u00F6\u00F8-\u037D\u037F-\u1FFF\u200C-\u200D\u203F-\u2040\u2070-\u218F\u2C00-\u2FEF\u3001-\uD7FF\uF900-\uFDCF\uFDF0-\uFFFD/;
/**
* Define a property.
*/
function def(obj, key, val, enumerable) {
Object.defineProperty(obj, key, {
value: val,
enumerable: !!enumerable,
writable: true,
configurable: true
});
}
/**
* Not type-checking this file because it's mostly vendor code.
*/
// Regular Expressions for parsing tags and attributes
const attribute = /^\s*([^\s"'<>\/=]+)(?:\s*(=)\s*(?:"([^"]*)"+|'([^']*)'+|([^\s"'=<>`]+)))?/;
const dynamicArgAttribute = /^\s*((?:v-[\w-]+:|@|:|#)\[[^=]+?\][^\s"'<>\/=]*)(?:\s*(=)\s*(?:"([^"]*)"+|'([^']*)'+|([^\s"'=<>`]+)))?/;
const ncname = `[a-zA-Z_][\\-\\.0-9_a-zA-Z${unicodeRegExp.source}]*`;
const qnameCapture = `((?:${ncname}\\:)?${ncname})`;
const startTagOpen = new RegExp(`^<${qnameCapture}`);
const startTagClose = /^\s*(\/?)>/;
const endTag = new RegExp(`^<\\/${qnameCapture}[^>]*>`);
const doctype = /^<!DOCTYPE [^>]+>/i;
// #7298: escape - to avoid being passed as HTML comment when inlined in page
const comment = /^<!\--/;
const conditionalComment = /^<!\[/;
// Special Elements (can contain anything)
const isPlainTextElement = makeMap('script,style,textarea', true);
const reCache = {};
const decodingMap = {
'<': '<',
'>': '>',
'"': '"',
'&': '&',
' ': '\n',
'	': '\t',
''': "'"
};
const encodedAttr = /&(?:lt|gt|quot|amp|#39);/g;
const encodedAttrWithNewLines = /&(?:lt|gt|quot|amp|#39|#10|#9);/g;
// #5992
const isIgnoreNewlineTag = makeMap('pre,textarea', true);
const shouldIgnoreFirstNewline = (tag, html) => tag && isIgnoreNewlineTag(tag) && html[0] === '\n';
function decodeAttr(value, shouldDecodeNewlines) {
const re = shouldDecodeNewlines ? encodedAttrWithNewLines : encodedAttr;
return value.replace(re, match => decodingMap[match]);
}
function parseHTML(html, options) {
const stack = [];
const expectHTML = options.expectHTML;
const isUnaryTag = options.isUnaryTag || no;
const canBeLeftOpenTag = options.canBeLeftOpenTag || no;
let index = 0;
let last, lastTag;
while (html) {
last = html;
// Make sure we're not in a plaintext content element like script/style
if (!lastTag || !isPlainTextElement(lastTag)) {
let textEnd = html.indexOf('<');
if (textEnd === 0) {
// Comment:
if (comment.test(html)) {
const commentEnd = html.indexOf('-->');
if (commentEnd >= 0) {
if (options.shouldKeepComment && options.comment) {
options.comment(html.substring(4, commentEnd), index, index + commentEnd + 3);
}
advance(commentEnd + 3);
continue;
}
}
// http://en.wikipedia.org/wiki/Conditional_comment#Downlevel-revealed_conditional_comment
if (conditionalComment.test(html)) {
const conditionalEnd = html.indexOf(']>');
if (conditionalEnd >= 0) {
advance(conditionalEnd + 2);
continue;
}
}
// Doctype:
const doctypeMatch = html.match(doctype);
if (doctypeMatch) {
advance(doctypeMatch[0].length);
continue;
}
// End tag:
const endTagMatch = html.match(endTag);
if (endTagMatch) {
const curIndex = index;
advance(endTagMatch[0].length);
parseEndTag(endTagMatch[1], curIndex, index);
continue;
}
// Start tag:
const startTagMatch = parseStartTag();
if (startTagMatch) {
handleStartTag(startTagMatch);
if (shouldIgnoreFirstNewline(startTagMatch.tagName, html)) {
advance(1);
}
continue;
}
}
let text, rest, next;
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);
}
if (textEnd < 0) {
text = html;
}
if (text) {
advance(text.length);
}
if (options.chars && text) {
options.chars(text, index - text.length, index);
}
}
else {
let endTagLength = 0;
const stackedTag = lastTag.toLowerCase();
const reStackedTag = reCache[stackedTag] ||
(reCache[stackedTag] = new RegExp('([\\s\\S]*?)(</' + stackedTag + '[^>]*>)', 'i'));
const rest = 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.length;
html = rest;
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}"`, {
start: index + html.length
});
}
break;
}
}
// Clean up any remaining tags
parseEndTag();
function advance(n) {
index += n;
html = html.substring(n);
}
function parseStartTag() {
const start = html.match(startTagOpen);
if (start) {
const match = {
tagName: start[1],
attrs: [],
start: index
};
advance(start[0].length);
let end, attr;
while (!(end = html.match(startTagClose)) &&
(attr = html.match(dynamicArgAttribute) || html.match(attribute))) {
attr.start = index;
advance(attr[0].length);
attr.end = index;
match.attrs.push(attr);
}
if (end) {
match.unarySlash = end[1];
advance(end[0].length);
match.end = index;
return match;
}
}
}
function handleStartTag(match) {
const tagName = match.tagName;
const unarySlash = match.unarySlash;
if (expectHTML) {
if (lastTag === 'p' && isNonPhrasingTag(tagName)) {
parseEndTag(lastTag);
}
if (canBeLeftOpenTag(tagName) && lastTag === tagName) {
parseEndTag(tagName);
}
}
const unary = isUnaryTag(tagName) || !!unarySlash;
const l = match.attrs.length;
const attrs = new Array(l);
for (let i = 0; i < l; i++) {
const args = match.attrs[i];
const value = args[3] || args[4] || args[5] || '';
const shouldDecodeNewlines = tagName === 'a' && args[1] === 'href'
? options.shouldDecodeNewlinesForHref
: options.shouldDecodeNewlines;
attrs[i] = {
name: args[1],
value: decodeAttr(value, shouldDecodeNewlines)
};
if (process.env.NODE_ENV !== 'production' && options.outputSourceRange) {
attrs[i].start = args.start + args[0].match(/^\s*/).length;
attrs[i].end = args.end;
}
}
if (!unary) {
stack.push({
tag: tagName,
lowerCasedTag: tagName.toLowerCase(),
attrs: attrs,
start: match.start,
end: match.end
});
lastTag = tagName;
}
if (options.start) {
options.start(tagName, attrs, unary, match.start, match.end);
}
}
function parseEndTag(tagName, start, end) {
let pos, lowerCasedTagName;
if (start == null)
start = index;
if (end == null)
end = index;
// Find the closest opened tag of the same type
if (tagName) {
lowerCasedTagName = tagName.toLowerCase();
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 (let 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.`, {
start: stack[i].start,
end: stack[i].end
});
}
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);
}
}
}
}
const DEFAULT_FILENAME = 'anonymous.vue';
const splitRE = /\r?\n/g;
const replaceRE = /./g;
const isSpecialTag = makeMap('script,style,template', true);
/**
* Parse a single-file component (*.vue) file into an SFC Descriptor Object.
*/
function parseComponent(source, options = {}) {
const sfc = {
source,
filename: DEFAULT_FILENAME,
template: null,
script: null,
scriptSetup: null,
styles: [],
customBlocks: [],
cssVars: [],
errors: [],
shouldForceReload: null // attached in parse() by compiler-sfc
};
let depth = 0;
let currentBlock = null;
let warn = msg => {
sfc.errors.push(msg);
};
if (process.env.NODE_ENV !== 'production' && options.outputSourceRange) {
warn = (msg, range) => {
const data = { msg };
if (range.start != null) {
data.start = range.start;
}
if (range.end != null) {
data.end = range.end;
}
sfc.errors.push(data);
};
}
function start(tag, attrs, unary, start, end) {
if (depth === 0) {
currentBlock = {
type: tag,
content: '',
start: end,
end: 0,
attrs: attrs.reduce((cumulated, { name, value }) => {
cumulated[name] = value || true;
return cumulated;
}, {})
};
if (typeof currentBlock.attrs.src === 'string') {
currentBlock.src = currentBlock.attrs.src;
}
if (isSpecialTag(tag)) {
checkAttrs(currentBlock, attrs);
if (tag === 'script') {
const block = currentBlock;
if (block.attrs.setup) {
block.setup = currentBlock.attrs.setup;
sfc.scriptSetup = block;
}
else {
sfc.script = block;
}
}
else 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 (let i = 0; i < attrs.length; i++) {
const 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;
}
}
}
function end(tag, start) {
if (depth === 1 && currentBlock) {
currentBlock.end = start;
let text = source.slice(currentBlock.start, currentBlock.end);
if (options.deindent === true ||
// by default, deindent unless it's script with default lang or (j/t)sx?
(options.deindent !== false &&
!(currentBlock.type === 'script' &&
(!currentBlock.lang || /^(j|t)sx?$/.test(currentBlock.lang))))) {
text = deindent__default["default"](text);
}
// 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 source.slice(0, block.start).replace(replaceRE, ' ');
}
else {
const offset = source.slice(0, block.start).split(splitRE).length;
const padChar = block.type === 'script' && !block.lang ? '//\n' : '\n';
return Array(offset).join(padChar);
}
}
parseHTML(source, {
warn,
start,
end,
outputSourceRange: options.outputSourceRange
});
return sfc;
}
// can we use __proto__?
const hasProto = '__proto__' in {};
// Browser environment sniffing
const inBrowser = typeof window !== 'undefined';
const UA = inBrowser && window.navigator.userAgent.toLowerCase();
const isIE = UA && /msie|trident/.test(UA);
UA && UA.indexOf('msie 9.0') > 0;
const isEdge = UA && UA.indexOf('edge/') > 0;
UA && UA.indexOf('android') > 0;
UA && /iphone|ipad|ipod|ios/.test(UA);
UA && /chrome\/\d+/.test(UA) && !isEdge;
UA && /phantomjs/.test(UA);
UA && UA.match(/firefox\/(\d+)/);
// Firefox has a "watch" function on Object.prototype...
// @ts-expect-error firebox support
const nativeWatch = {}.watch;
let supportsPassive = false;
if (inBrowser) {
try {
const opts = {};
Object.defineProperty(opts, 'passive', {
get() {
/* istanbul ignore next */
supportsPassive = true;
}
}); // 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
let _isServer;
const isServerRendering = () => {
if (_isServer === undefined) {
/* istanbul ignore if */
if (!inBrowser && typeof global !== 'undefined') {
// detect presence of vue-server-renderer and avoid
// Webpack shimming the process
_isServer =
global['process'] && global['process'].env.VUE_ENV === 'server';
}
else {
_isServer = false;
}
}
return _isServer;
};
/* istanbul ignore next */
function isNative(Ctor) {
return typeof Ctor === 'function' && /native code/.test(Ctor.toString());
}
const hasSymbol = typeof Symbol !== 'undefined' &&
isNative(Symbol) &&
typeof Reflect !== 'undefined' &&
isNative(Reflect.ownKeys);
let _Set; // $flow-disable-line
/* istanbul ignore if */ if (typeof Set !== 'undefined' && isNative(Set)) {
// use native Set when available.
_Set = Set;
}
else {
// a non-standard Set polyfill that only works with primitive keys.
_Set = class Set {
constructor() {
this.set = Object.create(null);
}
has(key) {
return this.set[key] === true;
}
add(key) {
this.set[key] = true;
}
clear() {
this.set = Object.create(null);
}
};
}
const ASSET_TYPES = ['component', 'directive', 'filter'];
const LIFECYCLE_HOOKS = [
'beforeCreate',
'created',
'beforeMount',
'mounted',
'beforeUpdate',
'updated',
'beforeDestroy',
'destroyed',
'activated',
'deactivated',
'errorCaptured',
'serverPrefetch',
'renderTracked',
'renderTriggered'
];
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,
/**
* Perform updates asynchronously. Intended to be used by Vue Test Utils
* This will significantly reduce performance if set to false.
*/
async: true,
/**
* Exposed for legacy reasons
*/
_lifecycleHooks: LIFECYCLE_HOOKS
};
let currentInstance = null;
/**
* @internal
*/
function setCurrentInstance(vm = null) {
if (!vm)
currentInstance && currentInstance._scope.off();
currentInstance = vm;
vm && vm._scope.on();
}
/**
* @internal
*/
class VNode {
constructor(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;
}
// DEPRECATED: alias for componentInstance for backwards compat.
/* istanbul ignore next */
get child() {
return this.componentInstance;
}
}
const createEmptyVNode = (text = '') => {
const node = new VNode();
node.text = text;
node.isComment = true;
return node;
};
function createTextVNode(val) {
return new VNode(undefined, undefined, undefined, String(val));
}
// 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.
function cloneVNode(vnode) {
const cloned = new VNode(vnode.tag, vnode.data,
// #7975
// clone children array to avoid mutating original in case of cloning
// a child.
vnode.children && vnode.children.slice(), vnode.text, vnode.elm, vnode.context, vnode.componentOptions, vnode.asyncFactory);
cloned.ns = vnode.ns;
cloned.isStatic = vnode.isStatic;
cloned.key = vnode.key;
cloned.isComment = vnode.isComment;
cloned.fnContext = vnode.fnContext;
cloned.fnOptions = vnode.fnOptions;
cloned.fnScopeId = vnode.fnScopeId;
cloned.asyncMeta = vnode.asyncMeta;
cloned.isCloned = true;
return cloned;
}
/* not type checking this file because flow doesn't play well with Proxy */
if (process.env.NODE_ENV !== 'production') {
makeMap('Infinity,undefined,NaN,isFinite,isNaN,' +
'parseFloat,parseInt,decodeURI,decodeURIComponent,encodeURI,encodeURIComponent,' +
'Math,Number,Date,Array,Object,Boolean,String,RegExp,Map,Set,JSON,Intl,BigInt,' +
'require' // for Webpack/Browserify
);
const hasProxy = typeof Proxy !== 'undefined' && isNative(Proxy);
if (hasProxy) {
const isBuiltInModifier = makeMap('stop,prevent,self,ctrl,shift,alt,meta,exact');
config.keyCodes = new Proxy(config.keyCodes, {
set(target, key, value) {
if (isBuiltInModifier(key)) {
warn$2(`Avoid overwriting built-in modifier in config.keyCodes: .${key}`);
return false;
}
else {
target[key] = value;
return true;
}
}
});
}
}
let uid = 0;
/**
* A dep is an observable that can have multiple
* directives subscribing to it.
* @internal
*/
class Dep {
constructor() {
// pending subs cleanup
this._pending = false;
this.id = uid++;
this.subs = [];
}
addSub(sub) {
this.subs.push(sub);
}
removeSub(sub) {
// #12696 deps with massive amount of subscribers are extremely slow to
// clean up in Chromium
// to workaround this, we unset the sub for now, and clear them on
// next scheduler flush.
this.subs[this.subs.indexOf(sub)] = null;
if (!this._pending) {
this._pending = true;
}
}
depend(info) {
if (Dep.target) {
Dep.target.addDep(this);
if (process.env.NODE_ENV !== 'production' && info && Dep.target.onTrack) {
Dep.target.onTrack(Object.assign({ effect: Dep.target }, info));
}
}
}
notify(info) {
// stabilize the subscriber list first
const subs = this.subs.filter(s => s);
if (process.env.NODE_ENV !== 'production' && !config.async) {
// subs aren't sorted in scheduler if not running async
// we need to sort them now to make sure they fire in correct
// order
subs.sort((a, b) => a.id - b.id);
}
for (let i = 0, l = subs.length; i < l; i++) {
const sub = subs[i];
if (process.env.NODE_ENV !== 'production' && info) {
sub.onTrigger &&
sub.onTrigger(Object.assign({ effect: subs[i] }, info));
}
sub.update();
}
}
}
// The current target watcher being evaluated.
// This is globally unique because only one watcher
// can be evaluated at a time.
Dep.target = null;
const targetStack = [];
function pushTarget(target) {
targetStack.push(target);
Dep.target = target;
}
function popTarget() {
targetStack.pop();
Dep.target = targetStack[targetStack.length - 1];
}
/*
* not type checking this file because flow doesn't play well with
* dynamically accessing methods on Array prototype
*/
const arrayProto = Array.prototype;
const arrayMethods = Object.create(arrayProto);
const methodsToPatch = [
'push',
'pop',
'shift',
'unshift',
'splice',
'sort',
'reverse'
];
/**
* Intercept mutating methods and emit events
*/
methodsToPatch.forEach(function (method) {
// cache original method
const original = arrayProto[method];
def(arrayMethods, method, function mutator(...args) {
const result = original.apply(this, args);
const ob = this.__ob__;
let inserted;
switch (method) {
case 'push':
case 'unshift':
inserted = args;
break;
case 'splice':
inserted = args.slice(2);
break;
}
if (inserted)
ob.observeArray(inserted);
// notify change
if (process.env.NODE_ENV !== 'production') {
ob.dep.notify({
type: "array mutation" /* TriggerOpTypes.ARRAY_MUTATION */,
target: this,
key: method
});
}
else {
ob.dep.notify();
}
return result;
});
});
const rawMap = new WeakMap();
function isReadonly(value) {
return !!(value && value.__v_isReadonly);
}
const arrayKeys = Object.getOwnPropertyNames(arrayMethods);
const NO_INIITIAL_VALUE = {};
/**
* In some cases we may want to disable observation inside a component's
* update computation.
*/
let shouldObserve = true;
function toggleObserving(value) {
shouldObserve = value;
}
// ssr mock dep
const mockDep = {
notify: noop,
depend: noop,
addSub: noop,
removeSub: noop
};
/**
* 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.
*/
class Observer {
constructor(value, shallow = false, mock = false) {
this.value = value;
this.shallow = shallow;
this.mock = mock;
// this.value = value
this.dep = mock ? mockDep : new Dep();
this.vmCount = 0;
def(value, '__ob__', this);
if (isArray(value)) {
if (!mock) {
if (hasProto) {
value.__proto__ = arrayMethods;
/* eslint-enable no-proto */
}
else {
for (let i = 0, l = arrayKeys.length; i < l; i++) {
const key = arrayKeys[i];
def(value, key, arrayMethods[key]);
}
}
}
if (!shallow) {
this.observeArray(value);
}
}
else {
/**
* Walk through all properties and convert them into
* getter/setters. This method should only be called when
* value type is Object.
*/
const keys = Object.keys(value);
for (let i = 0; i < keys.length; i++) {
const key = keys[i];
defineReactive(value, key, NO_INIITIAL_VALUE, undefined, shallow, mock);
}
}
}
/**
* Observe a list of Array items.
*/
observeArray(value) {
for (let i = 0, l = value.length; i < l; i++) {
observe(value[i], false, this.mock);
}
}
}
// helpers
/**
* 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, shallow, ssrMockReactivity) {
if (value && hasOwn(value, '__ob__') && value.__ob__ instanceof Observer) {
return value.__ob__;
}
if (shouldObserve &&
(ssrMockReactivity || !isServerRendering()) &&
(isArray(value) || isPlainObject(value)) &&
Object.isExtensible(value) &&
!value.__v_skip /* ReactiveFlags.SKIP */ &&
!rawMap.has(value) &&
!isRef(value) &&
!(value instanceof VNode)) {
return new Observer(value, shallow, ssrMockReactivity);
}
}
/**
* Define a reactive property on an Object.
*/
function defineReactive(obj, key, val, customSetter, shallow, mock) {
const dep = new Dep();
const property = Object.getOwnPropertyDescriptor(obj, key);
if (property && property.configurable === false) {
return;
}
// cater for pre-defined getter/setters
const getter = property && property.get;
const setter = property && property.set;
if ((!getter || setter) &&
(val === NO_INIITIAL_VALUE || arguments.length === 2)) {
val = obj[key];
}
let childOb = !shallow && observe(val, false, mock);
Object.defineProperty(obj, key, {
enumerable: true,
configurable: true,
get: function reactiveGetter() {
const value = getter ? getter.call(obj) : val;
if (Dep.target) {
if (process.env.NODE_ENV !== 'production') {
dep.depend({
target: obj,
type: "get" /* TrackOpTypes.GET */,
key
});
}
else {
dep.depend();
}
if (childOb) {
childOb.dep.depend();
if (isArray(value)) {
dependArray(value);
}
}
}
return isRef(value) && !shallow ? value.value : value;
},
set: function reactiveSetter(newVal) {
const value = getter ? getter.call(obj) : val;
if (!hasChanged(value, newVal)) {
return;
}
if (process.env.NODE_ENV !== 'production' && customSetter) {
customSetter();
}
if (setter) {
setter.call(obj, newVal);
}
else if (getter) {
// #7981: for accessor properties without setter
return;
}
else if (!shallow && isRef(value) && !isRef(newVal)) {
value.value = newVal;
return;
}
else {
val = newVal;
}
childOb = !shallow && observe(newVal, false, mock);
if (process.env.NODE_ENV !== 'production') {
dep.notify({
type: "set" /* TriggerOpTypes.SET */,
target: obj,
key,
newValue: newVal,
oldValue: value
});
}
else {
dep.notify();
}
}
});
return dep;
}
function set(target, key, val) {
if (process.env.NODE_ENV !== 'production' && (isUndef(target) || isPrimitive(target))) {
warn$2(`Cannot set reactive property on undefined, null, or primitive value: ${target}`);
}
if (isReadonly(target)) {
process.env.NODE_ENV !== 'production' && warn$2(`Set operation on key "${key}" failed: target is readonly.`);
return;
}
const ob = target.__ob__;
if (isArray(target) && isValidArrayIndex(key)) {
target.length = Math.max(target.length, key);
target.splice(key, 1, val);
// when mocking for SSR, array methods are not hijacked
if (ob && !ob.shallow && ob.mock) {
observe(val, false, true);
}
return val;
}
if (key in target && !(key in Object.prototype)) {
target[key] = val;
return val;
}
if (target._isVue || (ob && ob.vmCount)) {
process.env.NODE_ENV !== 'production' &&
warn$2('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, undefined, ob.shallow, ob.mock);
if (process.env.NODE_ENV !== 'production') {
ob.dep.notify({
type: "add" /* TriggerOpTypes.ADD */,
target: target,
key,
newValue: val,
oldValue: undefined
});
}
else {
ob.dep.notify();
}
return val;
}
/**
* Collect dependencies on array elements when the array is touched, since
* we cannot intercept array element access like property getters.
*/
function dependArray(value) {
for (let e, i = 0, l = value.length; i < l; i++) {
e = value[i];
if (e && e.__ob__) {
e.__ob__.dep.depend();
}
if (isArray(e)) {
dependArray(e);
}
}
}
function isRef(r) {
return !!(r && r.__v_isRef === true);
}
if (process.env.NODE_ENV !== 'production') ;
const normalizeEvent = cached((name) => {
const passive = name.charAt(0) === '&';
name = passive ? name.slice(1) : name;
const once = name.charAt(0) === '~'; // Prefixed last, checked first
name = once ? name.slice(1) : name;
const capture = name.charAt(0) === '!';
name = capture ? name.slice(1) : name;
return {
name,
once,
capture,
passive
};
});
function createFnInvoker(fns, vm) {
function invoker() {
const fns = invoker.fns;
if (isArray(fns)) {
const cloned = fns.slice();
for (let i = 0; i < cloned.length; i++) {
invokeWithErrorHandling(cloned[i], null, arguments, vm, `v-on handler`);
}
}
else {
// return handler return value for single handlers
return invokeWithErrorHandling(fns, null, arguments, vm, `v-on handler`);
}
}
invoker.fns = fns;
return invoker;
}
function updateListeners(on, oldOn, add, remove, createOnceHandler, vm) {
let name, cur, old, event;
for (name in on) {
cur = on[name];
old = oldOn[name];
event = normalizeEvent(name);
if (isUndef(cur)) {
process.env.NODE_ENV !== 'production' &&
warn$2(`Invalid handler for event "${event.name}": got ` + String(cur), vm);
}
else if (isUndef(old)) {
if (isUndef(cur.fns)) {
cur = on[name] = createFnInvoker(cur, vm);
}
if (isTrue(event.once)) {
cur = on[name] = createOnceHandler(event.name, cur, event.capture);
}
add(event.name, cur, event.capture, event.passive, event.params);
}
else if (cur !== old) {
old.fns = cur;
on[name] = old;
}
}
for (name in oldOn) {
if (isUndef(on[name])) {
event = normalizeEvent(name);
remove(event.name, oldOn[name], event.capture);
}
}
}
function extractPropsFromVNodeData(data, Ctor, tag) {
// we are only extracting raw values here.
// validation and default values are handled in the child
// component itself.
const propOptions = Ctor.options.props;
if (isUndef(propOptions)) {
return;
}
const res = {};
const { attrs, props } = data;
if (isDef(attrs) || isDef(props)) {
for (const key in propOptions) {
const altKey = hyphenate(key);
if (process.env.NODE_ENV !== 'production') {
const keyInLowerCase = key.toLowerCase();
if (key !== keyInLowerCase && attrs && hasOwn(attrs, keyInLowerCase)) {
tip(`Prop "${keyInLowerCase}" is passed to component ` +
`${formatComponentName(
// @ts-expect-error tag is string
tag || Ctor)}, but the declared prop name is` +
` "${key}". ` +
`Note that HTML attributes are case-insensitive and camelCased ` +
`props need to use their kebab-case equivalents when using in-DOM ` +
`templates. You should probably use "${altKey}" instead of "${key}".`);
}
}
checkProp(res, props, key, altKey, true) ||
checkProp(res, attrs, key, altKey, false);
}
}
return res;
}
function checkProp(res, hash, key, altKey, preserve) {
if (isDef(hash)) {
if (hasOwn(hash, key)) {
res[key] = hash[key];
if (!preserve) {
delete hash[key];
}
return true;
}
else if (hasOwn(hash, altKey)) {
res[key] = hash[altKey];
if (!preserve) {
delete hash[altKey];
}
return true;
}
}
return false;
}
// The template compiler attempts to minimize the need for normalization by
// statically analyzing the template at compile time.
//
// For plain HTML markup, normalization can be completely skipped because the
// generated render function is guaranteed to return Array<VNode>. There are
// two cases where extra normalization is needed:
// 1. When the children contains components - because a functional component
// may return an Array instead of a single root. In this case, just a simple
// normalization is needed - if any child is an Array, we flatten the whole
// thing with Array.prototype.concat. It is guaranteed to be only 1-level deep
// because functional components already normalize their own children.
function simpleNormalizeChildren(children) {
for (let i = 0; i < children.length; i++) {
if (isArray(children[i])) {
return Array.prototype.concat.apply([], children);
}
}
return children;
}
// 2. When the children contains constructs that always generated nested Arrays,
// e.g. <template>, <slot>, v-for, or when the children is provided by user
// with hand-written render functions / JSX. In such cases a full normalization
// is needed to cater to all possible types of children values.
function normalizeChildren(children) {
return isPrimitive(children)
? [createTextVNode(children)]
: isArray(children)
? normalizeArrayChildren(children)
: undefined;
}
function isTextNode(node) {
return isDef(node) && isDef(node.text) && isFalse(node.isComment);
}
function normalizeArrayChildren(children, nestedIndex) {
const res = [];
let i, c, lastIndex, last;
for (i = 0; i < children.length; i++) {
c = children[i];
if (isUndef(c) || typeof c === 'boolean')
continue;
lastIndex = res.length - 1;
last = res[lastIndex];
// nested
if (isArray(c)) {
if (c.length > 0) {
c = normalizeArrayChildren(c, `${nestedIndex || ''}_${i}`);
// merge adjacent text nodes
if (isTextNode(c[0]) && isTextNode(last)) {
res[lastIndex] = createTextVNode(last.text + c[0].text);
c.shift();
}
res.push.apply(res, c);
}
}
else if (isPrimitive(c)) {
if (isTextNode(last)) {
// merge adjacent text nodes
// this is necessary for SSR hydration because text nodes are
// essentially merged when rendered to HTML strings
res[lastIndex] = createTextVNode(last.text + c);
}
else if (c !== '') {
// convert primitive to vnode
res.push(createTextVNode(c));
}
}
else {
if (isTextNode(c) && isTextNode(last)) {
// merge adjacent text nodes
res[lastIndex] = createTextVNode(last.text + c.text);
}
else {
// default key for nested array children (likely generated by v-for)
if (isTrue(children._isVList) &&
isDef(c.tag) &&
isUndef(c.key) &&
isDef(nestedIndex)) {
c.key = `__vlist${nestedIndex}_${i}__`;
}
res.push(c);
}
}
}
return res;
}
const SIMPLE_NORMALIZE = 1;
const ALWAYS_NORMALIZE = 2;
// wrapper function for providing a more flexible interface
// without getting yelled at by flow
function createElement(context, tag, data, children, normalizationType, alwaysNormalize) {
if (isArray(data) || isPrimitive(data)) {
normalizationType = children;
children = data;
data = undefined;
}
if (isTrue(alwaysNormalize)) {
normalizationType = ALWAYS_NORMALIZE;
}
return _createElement(context, tag, data, children, normalizationType);
}
function _createElement(context, tag, data, children, normalizationType) {
if (isDef(data) && isDef(data.__ob__)) {
process.env.NODE_ENV !== 'production' &&
warn$2(`Avoid using observed data object as vnode data: ${JSON.stringify(data)}\n` + 'Always create fresh vnode data objects in each render!', context);
return createEmptyVNode();
}
// object syntax in v-bind
if (isDef(data) && isDef(data.is)) {
tag = data.is;
}
if (!tag) {
// in case of component :is set to falsy value
return createEmptyVNode();
}
// warn against non-primitive key
if (process.env.NODE_ENV !== 'production' && isDef(data) && isDef(data.key) && !isPrimitive(data.key)) {
warn$2('Avoid using non-primitive value as key, ' +
'use string/number value instead.', context);
}
// support single function children as default scoped slot
if (isArray(children) && isFunction(children[0])) {
data = data || {};
data.scopedSlots = { default: children[0] };
children.length = 0;
}
if (normalizationType === ALWAYS_NORMALIZE) {
children = normalizeChildren(children);
}
else if (normalizationType === SIMPLE_NORMALIZE) {
children = simpleNormalizeChildren(children);
}
let vnode, ns;
if (typeof tag === 'string') {
let Ctor;
ns = (context.$vnode && context.$vnode.ns) || config.getTagNamespace(tag);
if ((!data || !data.pre) &&
isDef((Ctor = resolveAsset(context.$options, 'components', tag)))) {
// component
vnode = createComponent(Ctor, data, context, children, tag);
}
else {
// unknown or unlisted namespaced elements
// check at runtime because it may get assigned a namespace when its
// parent normalizes children
vnode = new VNode(tag, data, children, undefined, undefined, context);
}
}
else {
// direct component options / constructor
vnode = createComponent(tag, data, context, children);
}
if (isArray(vnode)) {
return vnode;
}
else if (isDef(vnode)) {
if (isDef(ns))
applyNS(vnode, ns);
if (isDef(data))
registerDeepBindings(data);
return vnode;
}
else {
return createEmptyVNode();
}
}
function applyNS(vnode, ns, force) {
vnode.ns = ns;
if (vnode.tag === 'foreignObject') {
// use default namespace inside foreignObject
ns = undefined;
force = true;
}
if (isDef(vnode.children)) {
for (let i = 0, l = vnode.children.length; i < l; i++) {
const child = vnode.children[i];
if (isDef(child.tag) &&
(isUndef(child.ns) || (isTrue(force) && child.tag !== 'svg'))) {
applyNS(child, ns, force);
}
}
}
}
// ref #5318
// necessary to ensure parent re-render when deep bindings like :style and
// :class are used on slot nodes
function registerDeepBindings(data) {
if (isObject(data.style)) {
traverse(data.style);
}
if (isObject(data.class)) {
traverse(data.class);
}
}
/**
* Runtime helper for rendering v-for lists.
*/
function renderList(val, render) {
let ret = null, i, l, keys, key;
if (isArray(val) || typeof val === 'string') {
ret = new Array(val.length);
for (i = 0, l = val.length; i < l; i++) {
ret[i] = render(val[i], i);
}
}
else if (typeof val === 'number') {
ret = new Array(val);
for (i = 0; i < val; i++) {
ret[i] = render(i + 1, i);
}
}
else if (isObject(val)) {
if (hasSymbol && val[Symbol.iterator]) {
ret = [];
const iterator = val[Symbol.iterator]();
let result = iterator.next();
while (!result.done) {
ret.push(render(result.value, ret.length));
result = iterator.next();
}
}
else {
keys = Object.keys(val);
ret = new Array(keys.length);
for (i = 0, l = keys.length; i < l; i++) {
key = keys[i];
ret[i] = render(val[key], key, i);
}
}
}
if (!isDef(ret)) {
ret = [];
}
ret._isVList = true;
return ret;
}
/**
* Runtime helper for rendering <slot>
*/
function renderSlot(name, fallbackRender, props, bindObject) {
const scopedSlotFn = this.$scopedSlots[name];
let nodes;
if (scopedSlotFn) {
// scoped slot
props = props || {};
if (bindObject) {
if (process.env.NODE_ENV !== 'production' && !isObject(bindObject)) {
warn$2('slot v-bind without argument expects an Object', this);
}
props = extend(extend({}, bindObject), props);
}
nodes =
scopedSlotFn(props) ||
(isFunction(fallbackRender) ? fallbackRender() : fallbackRender);
}
else {
nodes =
this.$slots[name] ||
(isFunction(fallbackRender) ? fallbackRender() : fallbackRender);
}
const target = props && props.slot;
if (target) {
return this.$createElement('template', { slot: target }, nodes);
}
else {
return nodes;
}
}
/**
* Runtime helper for resolving filters
*/
function resolveFilter(id) {
return resolveAsset(this.$options, 'filters', id, true) || identity;
}
function isKeyNotMatch(expect, actual) {
if (isArray(expect)) {
return expect.indexOf(actual) === -1;
}
else {
return expect !== actual;
}
}
/**
* Runtime helper for checking keyCodes from config.
* exposed as Vue.prototype._k
* passing in eventKeyName as last argument separately for backwards compat
*/
function checkKeyCodes(eventKeyCode, key, builtInKeyCode, eventKeyName, builtInKeyName) {
const mappedKeyCode = config.keyCodes[key] || builtInKeyCode;
if (builtInKeyName && eventKeyName && !config.keyCodes[key]) {
return isKeyNotMatch(builtInKeyName, eventKeyName);
}
else if (mappedKeyCode) {
return isKeyNotMatch(mappedKeyCode, eventKeyCode);
}
else if (eventKeyName) {
return hyphenate(eventKeyName) !== key;
}
return eventKeyCode === undefined;
}
/**
* Runtime helper for merging v-bind="object" into a VNode's data.
*/
function bindObjectProps(data, tag, value, asProp, isSync) {
if (value) {
if (!isObject(value)) {
process.env.NODE_ENV !== 'production' &&
warn$2('v-bind without argument expects an Object or Array value', this);
}
else {
if (isArray(value)) {
value = toObject(value);
}
let hash;
for (const key in value) {
if (key === 'class' || key === 'style' || isReservedAttribute(key)) {
hash = data;
}
else {
const type = data.attrs && data.attrs.type;
hash =
asProp || config.mustUseProp(tag, type, key)
? data.domProps || (data.domProps = {})
: data.attrs || (data.attrs = {});
}
const camelizedKey = camelize(key);
const hyphenatedKey = hyphenate(key);
if (!(camelizedKey in hash) && !(hyphenatedKey in hash)) {
hash[key] = value[key];
if (isSync) {
const on = data.on || (data.on = {});
on[`update:${key}`] = function ($event) {
value[key] = $event;
};
}
}
}
}
}
return data;
}
/**
* Runtime helper for rendering static trees.
*/
function renderStatic(index, isInFor) {
const cached = this._staticTrees || (this._staticTrees = []);
let tree = cached[index];
// if has already-rendered static tree and not inside v-for,
// we can reuse the same tree.
if (tree && !isInFor) {
return tree;
}
// otherwise, render a fresh tree.
tree = cached[index] = this.$options.staticRenderFns[index].call(this._renderProxy, this._c, this // for render fns generated for functional component templates
);
markStatic$1(tree, `__static__${index}`, false);
return tree;
}
/**
* Runtime helper for v-once.
* Effectively it means marking the node as static with a unique key.
*/
function markOnce(tree, index, key) {
markStatic$1(tree, `__once__${index}${key ? `_${key}` : ``}`, true);
return tree;
}
function markStatic$1(tree, key, isOnce) {
if (isArray(tree)) {
for (let i = 0; i < tree.length; i++) {
if (tree[i] && typeof tree[i] !== 'string') {
markStaticNode(tree[i], `${key}_${i}`, isOnce);
}
}
}
else {
markStaticNode(tree, key, isOnce);
}
}
function markStaticNode(node, key, isOnce) {
node.isStatic = true;
node.key = key;
node.isOnce = isOnce;
}
function bindObjectListeners(data, value) {
if (value) {
if (!isPlainObject(value)) {
process.env.NODE_ENV !== 'production' && warn$2('v-on without argument expects an Object value', this);
}
else {
const on = (data.on = data.on ? extend({}, data.on) : {});
for (const key in value) {
const existing = on[key];
const ours = value[key];
on[key] = existing ? [].concat(existing, ours) : ours;
}
}
}
return data;
}
function resolveScopedSlots(fns, res,
// the following are added in 2.6
hasDynamicKeys, contentHashKey) {
res = res || { $stable: !hasDynamicKeys };
for (let i = 0; i < fns.length; i++) {
const slot = fns[i];
if (isArray(slot)) {
resolveScopedSlots(slot, res, hasDynamicKeys);
}
else if (slot) {
// marker for reverse proxying v-slot without scope on this.$slots
// @ts-expect-error
if (slot.proxy) {
// @ts-expect-error
slot.fn.proxy = true;
}
res[slot.key] = slot.fn;
}
}
if (contentHashKey) {
res.$key = contentHashKey;
}
return res;
}
// helper to process dynamic keys for dynamic arguments in v-bind and v-on.
function bindDynamicKeys(baseObj, values) {
for (let i = 0; i < values.length; i += 2) {
const key = values[i];
if (typeof key === 'string' && key) {
baseObj[values[i]] = values[i + 1];
}
else if (process.env.NODE_ENV !== 'production' && key !== '' && key !== null) {
// null is a special value for explicitly removing a binding
warn$2(`Invalid value for dynamic directive argument (expected string or null): ${key}`, this);
}
}
return baseObj;
}
// helper to dynamically append modifier runtime markers to event names.
// ensure only append when value is already string, otherwise it will be cast
// to string and cause the type check to miss.
function prependModifier(value, symbol) {
return typeof value === 'string' ? symbol + value : value;
}
function installRenderHelpers(target) {
target._o = markOnce;
target._n = toNumber;
target._s = toString;
target._l = renderList;
target._t = renderSlot;
target._q = looseEqual;
target._i = looseIndexOf;
target._m = renderStatic;
target._f = resolveFilter;
target._k = checkKeyCodes;
target._b = bindObjectProps;
target._v = createTextVNode;
target._e = createEmptyVNode;
target._u = resolveScopedSlots;
target._g = bindObjectListeners;
target._d = bindDynamicKeys;
target._p = prependModifier;
}
/**
* Runtime helper for resolving raw children VNodes into a slot object.
*/
function resolveSlots(children, context) {
if (!children || !children.length) {
return {};
}
const slots = {};
for (let i = 0, l = children.length; i < l; i++) {
const child = children[i];
const data = child.data;
// remove slot attribute if the node is resolved as a Vue slot node
if (data && data.attrs && data.attrs.slot) {
delete data.attrs.slot;
}
// named slots should only be respected if the vnode was rendered in the
// same context.
if ((child.context === context || child.fnContext === context) &&
data &&
data.slot != null) {
const name = data.slot;
const slot = slots[name] || (slots[name] = []);
if (child.tag === 'template') {
slot.push.apply(slot, child.children || []);
}
else {
slot.push(child);
}
}
else {
(slots.default || (slots.default = [])).push(child);
}
}
// ignore slots that contains only whitespace
for (const name in slots) {
if (slots[name].every(isWhitespace)) {
delete slots[name];
}
}
return slots;
}
function isWhitespace(node) {
return (node.isComment && !node.asyncFactory) || node.text === ' ';
}
function isAsyncPlaceholder(node) {
// @ts-expect-error not really boolean type
return node.isComment && node.asyncFactory;
}
function normalizeScopedSlots(ownerVm, scopedSlots, normalSlots, prevScopedSlots) {
let res;
const hasNormalSlots = Object.keys(normalSlots).length > 0;
const isStable = scopedSlots ? !!scopedSlots.$stable : !hasNormalSlots;
const key = scopedSlots && scopedSlots.$key;
if (!scopedSlots) {
res = {};
}
else if (scopedSlots._normalized) {
// fast path 1: child component re-render only, parent did not change
return scopedSlots._normalized;
}
else if (isStable &&
prevScopedSlots &&
prevScopedSlots !== emptyObject &&
key === prevScopedSlots.$key &&
!hasNormalSlots &&
!prevScopedSlots.$hasNormal) {
// fast path 2: stable scoped slots w/ no normal slots to proxy,
// only need to normalize once
return prevScopedSlots;
}
else {
res = {};
for (const key in scopedSlots) {
if (scopedSlots[key] && key[0] !== '$') {
res[key] = normalizeScopedSlot(ownerVm, normalSlots, key, scopedSlots[key]);
}
}
}
// expose normal slots on scopedSlots
for (const key in normalSlots) {
if (!(key in res)) {
res[key] = proxyNormalSlot(normalSlots, key);
}
}
// avoriaz seems to mock a non-extensible $scopedSlots object
// and when that is passed down this would cause an error
if (scopedSlots && Object.isExtensible(scopedSlots)) {
scopedSlots._normalized = res;
}
def(res, '$stable', isStable);
def(res, '$key', key);
def(res, '$hasNormal', hasNormalSlots);
return res;
}
function normalizeScopedSlot(vm, normalSlots, key, fn) {
const normalized = function () {
const cur = currentInstance;
setCurrentInstance(vm);
let res = arguments.length ? fn.apply(null, arguments) : fn({});
res =
res && typeof res === 'object' && !isArray(res)
? [res] // single vnode
: normalizeChildren(res);
const vnode = res && res[0];
setCurrentInstance(cur);
return res &&
(!vnode ||
(res.length === 1 && vnode.isComment && !isAsyncPlaceholder(vnode))) // #9658, #10391
? undefined
: res;
};
// this is a slot using the new v-slot syntax without scope. although it is
// compiled as a scoped slot, render fn users would expect it to be present
// on this.$slots because the usage is semantically a normal slot.
if (fn.proxy) {
Object.defineProperty(normalSlots, key, {
get: normalized,
enumerable: true,
configurable: true
});
}
return normalized;
}
function proxyNormalSlot(slots, key) {
return () => slots[key];
}
function syncSetupProxy(to, from, prev, instance, type) {
let changed = false;
for (const key in from) {
if (!(key in to)) {
changed = true;
defineProxyAttr(to, key, instance, type);
}
else if (from[key] !== prev[key]) {
changed = true;
}
}
for (const key in to) {
if (!(key in from)) {
changed = true;
delete to[key];
}
}
return changed;
}
function defineProxyAttr(proxy, key, instance, type) {
Object.defineProperty(proxy, key, {
enumerable: true,
configurable: true,
get() {
return instance[type][key];
}
});
}
function createAsyncPlaceholder(factory, data, context, children, tag) {
const node = createEmptyVNode();
node.asyncFactory = factory;
node.asyncMeta = { data, context, children, tag };
return node;
}
function resolveAsyncComponent(factory, baseCtor) {
if (isTrue(factory.error) && isDef(factory.errorComp)) {
return factory.errorComp;
}
if (isDef(factory.resolved)) {
return factory.resolved;
}
if (isTrue(factory.loading) && isDef(factory.loadingComp)) {
return factory.loadingComp;
}
}
let target;
function add(event, fn) {
target.$on(event, fn);
}
function remove(event, fn) {
target.$off(event, fn);
}
function createOnceHandler(event, fn) {
const _target = target;
return function onceHandler() {
const res = fn.apply(null, arguments);
if (res !== null) {
_target.$off(event, onceHandler);
}
};
}
function updateComponentListeners(vm, listeners, oldListeners) {
target = vm;
updateListeners(listeners, oldListeners || {}, add, remove, createOnceHandler, vm);
target = undefined;
}
let activeInstance = null;
function updateChildComponent(vm, propsData, listeners, parentVnode, renderChildren) {
if (process.env.NODE_ENV !== 'production') ;
// determine whether component has slot children
// we need to do this before overwriting $options._renderChildren.
// check if there are dynamic scopedSlots (hand-written or compiled but with
// dynamic slot names). Static scoped slots compiled from template has the
// "$stable" marker.
const newScopedSlots = parentVnode.data.scopedSlots;
const oldScopedSlots = vm.$scopedSlots;
const hasDynamicScopedSlot = !!((newScopedSlots && !newScopedSlots.$stable) ||
(oldScopedSlots !== emptyObject && !oldScopedSlots.$stable) ||
(newScopedSlots && vm.$scopedSlots.$key !== newScopedSlots.$key) ||
(!newScopedSlots && vm.$scopedSlots.$key));
// Any static slot children from the parent may have changed during parent's
// update. Dynamic scoped slots may also have changed. In such cases, a forced
// update is necessary to ensure correctness.
let needsForceUpdate = !!(renderChildren || // has new static slots
vm.$options._renderChildren || // has old static slots
hasDynamicScopedSlot);
const prevVNode = vm.$vnode;
vm.$options._parentVnode = parentVnode;
vm.$vnode = parentVnode; // update vm's placeholder node without re-render
if (vm._vnode) {
// update child tree's parent
vm._vnode.parent = parentVnode;
}
vm.$options._renderChildren = renderChildren;
// update $attrs and $listeners hash
// these are also reactive so they may trigger child update if the child
// used them during render
const attrs = parentVnode.data.attrs || emptyObject;
if (vm._attrsProxy) {
// force update if attrs are accessed and has changed since it may be
// passed to a child component.
if (syncSetupProxy(vm._attrsProxy, attrs, (prevVNode.data && prevVNode.data.attrs) || emptyObject, vm, '$attrs')) {
needsForceUpdate = true;
}
}
vm.$attrs = attrs;
// update listeners
listeners = listeners || emptyObject;
const prevListeners = vm.$options._parentListeners;
if (vm._listenersProxy) {
syncSetupProxy(vm._listenersProxy, listeners, prevListeners || emptyObject, vm, '$listeners');
}
vm.$listeners = vm.$options._parentListeners = listeners;
updateComponentListeners(vm, listeners, prevListeners);
// update props
if (propsData && vm.$options.props) {
toggleObserving(false);
const props = vm._props;
const propKeys = vm.$options._propKeys || [];
for (let i = 0; i < propKeys.length; i++) {
const key = propKeys[i];
const propOptions = vm.$options.props; // wtf flow?
props[key] = validateProp(key, propOptions, propsData, vm);
}
toggleObserving(true);
// keep a copy of raw propsData
vm.$options.propsData = propsData;
}
// resolve slots + force update if has children
if (needsForceUpdate) {
vm.$slots = resolveSlots(renderChildren, parentVnode.context);
vm.$forceUpdate();
}
if (process.env.NODE_ENV !== 'production') ;
}
function isInInactiveTree(vm) {
while (vm && (vm = vm.$parent)) {
if (vm._inactive)
return true;
}
return false;
}
function activateChildComponent(vm, direct) {
if (direct) {
vm._directInactive = false;
if (isInInactiveTree(vm)) {
return;
}
}
else if (vm._directInactive) {
return;
}
if (vm._inactive || vm._inactive === null) {
vm._inactive = false;
for (let i = 0; i < vm.$children.length; i++) {
activateChildComponent(vm.$children[i]);
}
callHook(vm, 'activated');
}
}
function deactivateChildComponent(vm, direct) {
if (direct) {
vm._directInactive = true;
if (isInInactiveTree(vm)) {
return;
}
}
if (!vm._inactive) {
vm._inactive = true;
for (let i = 0; i < vm.$children.length; i++) {
deactivateChildComponent(vm.$children[i]);
}
callHook(vm, 'deactivated');
}
}
function callHook(vm, hook, args, setContext = true) {
// #7573 disable dep collection when invoking lifecycle hooks
pushTarget();
const prev = currentInstance;
setContext && setCurrentInstance(vm);
const handlers = vm.$options[hook];
const info = `${hook} hook`;
if (handlers) {
for (let i = 0, j = handlers.length; i < j; i++) {
invokeWithErrorHandling(handlers[i], vm, args || null, vm, info);
}
}
if (vm._hasHookEvent) {
vm.$emit('hook:' + hook);
}
setContext && setCurrentInstance(prev);
popTarget();
}
// Async edge case fix requires storing an event listener's attach timestamp.
let getNow = Date.now;
// Determine what event timestamp the browser is using. Annoyingly, the
// timestamp can either be hi-res (relative to page load) or low-res
// (relative to UNIX epoch), so in order to compare time we have to use the
// same timestamp type when saving the flush timestamp.
// All IE versions use low-res event timestamps, and have problematic clock
// implementations (#9632)
if (inBrowser && !isIE) {
const performance = window.performance;
if (performance &&
typeof performance.now === 'function' &&
getNow() > document.createEvent('Event').timeStamp) {
// if the event timestamp, although evaluated AFTER the Date.now(), is
// smaller than it, it means the event is using a hi-res timestamp,
// and we need to use the hi-res version for event listener timestamps as
// well.
getNow = () => performance.now();
}
}
/**
* Queue a kept-alive component that was activated during patch.
* The queue will be processed after the entire tree has been patched.
*/
function queueActivatedComponent(vm) {
// setting _inactive to false here so that a render function can
// rely on checking whether it's in an inactive tree (e.g. router-view)
vm._inactive = false;
}
function handleError(err, vm, info) {
// Deactivate deps tracking while processing error handler to avoid possible infinite rendering.
// See: https://github.com/vuejs/vuex/issues/1505
pushTarget();
try {
if (vm) {
let cur = vm;
while ((cur = cur.$parent)) {
const hooks = cur.$options.errorCaptured;
if (hooks) {
for (let i = 0; i < hooks.length; i++) {
try {
const capture = hooks[i].call(cur, err, vm, info) === false;
if (capture)
return;
}
catch (e) {
globalHandleError(e, cur, 'errorCaptured hook');
}
}
}
}
}
globalHandleError(err, vm, info);
}
finally {
popTarget();
}
}
function invokeWithErrorHandling(handler, context, args, vm, info) {
let res;
try {
res = args ? handler.apply(context, args) : handler.call(context);
if (res && !res._isVue && isPromise(res) && !res._handled) {
res.catch(e => handleError(e, vm, info + ` (Promise/async)`));
res._handled = true;
}
}
catch (e) {
handleError(e, vm, info);
}
return res;
}
function globalHandleError(err, vm, info) {
logError(err, vm, info);
}
function logError(err, vm, info) {
if (process.env.NODE_ENV !== 'production') {
warn$2(`Error in ${info}: "${err.toString()}"`, vm);
}
/* istanbul ignore else */
if (inBrowser && typeof console !== 'undefined') {
console.error(err);
}
else {
throw err;
}
}
/* globals MutationObserver */
const callbacks = [];
function flushCallbacks() {
const copies = callbacks.slice(0);
callbacks.length = 0;
for (let i = 0; i < copies.length; i++) {
copies[i]();
}
}
// The nextTick behavior leverages the microtask queue, which can be accessed
// via either native Promise.then or MutationObserver.
// MutationObserver has wider support, however it is seriously bugged in
// UIWebView in iOS >= 9.3.3 when triggered in touch event handlers. It
// completely stops working after triggering a few times... so, if native
// Promise is available, we will use it:
/* istanbul ignore next, $flow-disable-line */
if (typeof Promise !== 'undefined' && isNative(Promise)) {
Promise.resolve();
}
else if (!isIE &&
typeof MutationObserver !== 'undefined' &&
(isNative(MutationObserver) ||
// PhantomJS and iOS 7.x
MutationObserver.toString() === '[object MutationObserverConstructor]')) {
// Use MutationObserver where native Promise is not available,
// e.g. PhantomJS, iOS7, Android 4.4
// (#6466 MutationObserver is unreliable in IE11)
let counter = 1;
const observer = new MutationObserver(flushCallbacks);
const textNode = document.createTextNode(String(counter));
observer.observe(textNode, {
characterData: true
});
}
else if (typeof setImmediate !== 'undefined' && isNative(setImmediate)) ;
else ;
const seenObjects = new _Set();
/**
* Recursively traverse an object to evoke all converted
* getters, so that every nested property inside the object
* is collected as a "deep" dependency.
*/
function traverse(val) {
_traverse(val, seenObjects);
seenObjects.clear();
return val;
}
function _traverse(val, seen) {
let i, keys;
const isA = isArray(val);
if ((!isA && !isObject(val)) ||
val.__v_skip /* ReactiveFlags.SKIP */ ||
Object.isFrozen(val) ||
val instanceof VNode) {
return;
}
if (val.__ob__) {
const depId = val.__ob__.dep.id;
if (seen.has(depId)) {
return;
}
seen.add(depId);
}
if (isA) {
i = val.length;
while (i--)
_traverse(val[i], seen);
}
else if (isRef(val)) {
_traverse(val.value, seen);
}
else {
keys = Object.keys(val);
i = keys.length;
while (i--)
_traverse(val[keys[i]], seen);
}
}
function resolveInject(inject, vm) {
if (inject) {
// inject is :any because flow is not smart enough to figure out cached
const result = Object.create(null);
const keys = hasSymbol ? Reflect.ownKeys(inject) : Object.keys(inject);
for (let i = 0; i < keys.length; i++) {
const key = keys[i];
// #6574 in case the inject object is observed...
if (key === '__ob__')
continue;
const provideKey = inject[key].from;
if (provideKey in vm._provided) {
result[key] = vm._provided[provideKey];
}
else if ('default' in inject[key]) {
const provideDefault = inject[key].default;
result[key] = isFunction(provideDefault)
? provideDefault.call(vm)
: provideDefault;
}
else if (process.env.NODE_ENV !== 'production') {
warn$2(`Injection "${key}" not found`, vm);
}
}
return result;
}
}
function resolveConstructorOptions(Ctor) {
let options = Ctor.options;
if (Ctor.super) {
const superOptions = resolveConstructorOptions(Ctor.super);
const cachedSuperOptions = Ctor.superOptions;
if (superOptions !== cachedSuperOptions) {
// super option changed,
// need to resolve new options.
Ctor.superOptions = superOptions;
// check if there are any late-modified/attached options (#4976)
const modifiedOptions = resolveModifiedOptions(Ctor);
// update base extend options
if (modifiedOptions) {
extend(Ctor.extendOptions, modifiedOptions);
}
options = Ctor.options = mergeOptions(superOptions, Ctor.extendOptions);
if (options.name) {
options.components[options.name] = Ctor;
}
}
}
return options;
}
function resolveModifiedOptions(Ctor) {
let modified;
const latest = Ctor.options;
const sealed = Ctor.sealedOptions;
for (const key in latest) {
if (latest[key] !== sealed[key]) {
if (!modified)
modified = {};
modified[key] = latest[key];
}
}
return modified;
}
function FunctionalRenderContext(data, props, children, parent, Ctor) {
const options = Ctor.options;
// ensure the createElement function in functional components
// gets a unique context - this is necessary for correct named slot check
let contextVm;
if (hasOwn(parent, '_uid')) {
contextVm = Object.create(parent);
contextVm._original = parent;
}
else {
// the context vm passed in is a functional context as well.
// in this case we want to make sure we are able to get a hold to the
// real context instance.
contextVm = parent;
// @ts-ignore
parent = parent._original;
}
const isCompiled = isTrue(options._compiled);
const needNormalization = !isCompiled;
this.data = data;
this.props = props;
this.children = children;
this.parent = parent;
this.listeners = data.on || emptyObject;
this.injections = resolveInject(options.inject, parent);
this.slots = () => {
if (!this.$slots) {
normalizeScopedSlots(parent, data.scopedSlots, (this.$slots = resolveSlots(children, parent)));
}
return this.$slots;
};
Object.defineProperty(this, 'scopedSlots', {
enumerable: true,
get() {
return normalizeScopedSlots(parent, data.scopedSlots, this.slots());
}
});
// support for compiled functional template
if (isCompiled) {
// exposing $options for renderStatic()
this.$options = options;
// pre-resolve slots for renderSlot()
this.$slots = this.slots();
this.$scopedSlots = normalizeScopedSlots(parent, data.scopedSlots, this.$slots);
}
if (options._scopeId) {
this._c = (a, b, c, d) => {
const vnode = createElement(contextVm, a, b, c, d, needNormalization);
if (vnode && !isArray(vnode)) {
vnode.fnScopeId = options._scopeId;
vnode.fnContext = parent;
}
return vnode;
};
}
else {
this._c = (a, b, c, d) => createElement(contextVm, a, b, c, d, needNormalization);
}
}
installRenderHelpers(FunctionalRenderContext.prototype);
function createFunctionalComponent(Ctor, propsData, data, contextVm, children) {
const options = Ctor.options;
const props = {};
const propOptions = options.props;
if (isDef(propOptions)) {
for (const key in propOptions) {
props[key] = validateProp(key, propOptions, propsData || emptyObject);
}
}
else {
if (isDef(data.attrs))
mergeProps(props, data.attrs);
if (isDef(data.props))
mergeProps(props, data.props);
}
const renderContext = new FunctionalRenderContext(data, props, children, contextVm, Ctor);
const vnode = options.render.call(null, renderContext._c, renderContext);
if (vnode instanceof VNode) {
return cloneAndMarkFunctionalResult(vnode, data, renderContext.parent, options, renderContext);
}
else if (isArray(vnode)) {
const vnodes = normalizeChildren(vnode) || [];
const res = new Array(vnodes.length);
for (let i = 0; i < vnodes.length; i++) {
res[i] = cloneAndMarkFunctionalResult(vnodes[i], data, renderContext.parent, options, renderContext);
}
return res;
}
}
function cloneAndMarkFunctionalResult(vnode, data, contextVm, options, renderContext) {
// #7817 clone node before setting fnContext, otherwise if the node is reused
// (e.g. it was from a cached normal slot) the fnContext causes named slots
// that should not be matched to match.
const clone = cloneVNode(vnode);
clone.fnContext = contextVm;
clone.fnOptions = options;
if (process.env.NODE_ENV !== 'production') {
(clone.devtoolsMeta = clone.devtoolsMeta || {}).renderContext =
renderContext;
}
if (data.slot) {
(clone.data || (clone.data = {})).slot = data.slot;
}
return clone;
}
function mergeProps(to, from) {
for (const key in from) {
to[camelize(key)] = from[key];
}
}
function getComponentName(options) {
return options.name || options.__name || options._componentTag;
}
// inline hooks to be invoked on component VNodes during patch
const componentVNodeHooks = {
init(vnode, hydrating) {
if (vnode.componentInstance &&
!vnode.componentInstance._isDestroyed &&
vnode.data.keepAlive) {
// kept-alive components, treat as a patch
const mountedNode = vnode; // work around flow
componentVNodeHooks.prepatch(mountedNode, mountedNode);
}
else {
const child = (vnode.componentInstance = createComponentInstanceForVnode(vnode, activeInstance));
child.$mount(hydrating ? vnode.elm : undefined, hydrating);
}
},
prepatch(oldVnode, vnode) {
const options = vnode.componentOptions;
const child = (vnode.componentInstance = oldVnode.componentInstance);
updateChildComponent(child, options.propsData, // updated props
options.listeners, // updated listeners
vnode, // new parent vnode
options.children // new children
);
},
insert(vnode) {
const { context, componentInstance } = vnode;
if (!componentInstance._isMounted) {
componentInstance._isMounted = true;
callHook(componentInstance, 'mounted');
}
if (vnode.data.keepAlive) {
if (context._isMounted) {
// vue-router#1212
// During updates, a kept-alive component's child components may
// change, so directly walking the tree here may call activated hooks
// on incorrect children. Instead we push them into a queue which will
// be processed after the whole patch process ended.
queueActivatedComponent(componentInstance);
}
else {
activateChildComponent(componentInstance, true /* direct */);
}
}
},
destroy(vnode) {
const { componentInstance } = vnode;
if (!componentInstance._isDestroyed) {
if (!vnode.data.keepAlive) {
componentInstance.$destroy();
}
else {
deactivateChildComponent(componentInstance, true /* direct */);
}
}
}
};
const hooksToMerge = Object.keys(componentVNodeHooks);
function createComponent(Ctor, data, context, children, tag) {
if (isUndef(Ctor)) {
return;
}
const baseCtor = context.$options._base;
// plain options object: turn it into a constructor
if (isObject(Ctor)) {
Ctor = baseCtor.extend(Ctor);
}
// if at this stage it's not a constructor or an async component factory,
// reject.
if (typeof Ctor !== 'function') {
if (process.env.NODE_ENV !== 'production') {
warn$2(`Invalid Component definition: ${String(Ctor)}`, context);
}
return;
}
// async component
let asyncFactory;
// @ts-expect-error
if (isUndef(Ctor.cid)) {
asyncFactory = Ctor;
Ctor = resolveAsyncComponent(asyncFactory);
if (Ctor === undefined) {
// return a placeholder node for async component, which is rendered
// as a comment node but preserves all the raw information for the node.
// the information will be used for async server-rendering and hydration.
return createAsyncPlaceholder(asyncFactory, data, context, children, tag);
}
}
data = data || {};
// resolve constructor options in case global mixins are applied after
// component constructor creation
resolveConstructorOptions(Ctor);
// transform component v-model data into props & events
if (isDef(data.model)) {
// @ts-expect-error
transformModel(Ctor.options, data);
}
// extract props
// @ts-expect-error
const propsData = extractPropsFromVNodeData(data, Ctor, tag);
// functional component
// @ts-expect-error
if (isTrue(Ctor.options.functional)) {
return createFunctionalComponent(Ctor, propsData, data, context, children);
}
// extract listeners, since these needs to be treated as
// child component listeners instead of DOM listeners
const listeners = data.on;
// replace with listeners with .native modifier
// so it gets processed during parent component patch.
data.on = data.nativeOn;
// @ts-expect-error
if (isTrue(Ctor.options.abstract)) {
// abstract components do not keep anything
// other than props & listeners & slot
// work around flow
const slot = data.slot;
data = {};
if (slot) {
data.slot = slot;
}
}
// install component management hooks onto the placeholder node
installComponentHooks(data);
// return a placeholder vnode
// @ts-expect-error
const name = getComponentName(Ctor.options) || tag;
const vnode = new VNode(
// @ts-expect-error
`vue-component-${Ctor.cid}${name ? `-${name}` : ''}`, data, undefined, undefined, undefined, context,
// @ts-expect-error
{ Ctor, propsData, listeners, tag, children }, asyncFactory);
return vnode;
}
function createComponentInstanceForVnode(
// we know it's MountedComponentVNode but flow doesn't
vnode,
// activeInstance in lifecycle state
parent) {
const options = {
_isComponent: true,
_parentVnode: vnode,
parent
};
// check inline-template render functions
const inlineTemplate = vnode.data.inlineTemplate;
if (isDef(inlineTemplate)) {
options.render = inlineTemplate.render;
options.staticRenderFns = inlineTemplate.staticRenderFns;
}
return new vnode.componentOptions.Ctor(options);
}
function installComponentHooks(data) {
const hooks = data.hook || (data.hook = {});
for (let i = 0; i < hooksToMerge.length; i++) {
const key = hooksToMerge[i];
const existing = hooks[key];
const toMerge = componentVNodeHooks[key];
// @ts-expect-error
if (existing !== toMerge && !(existing && existing._merged)) {
hooks[key] = existing ? mergeHook(toMerge, existing) : toMerge;
}
}
}
function mergeHook(f1, f2) {
const merged = (a, b) => {
// flow complains about extra args which is why we use any
f1(a, b);
f2(a, b);
};
merged._merged = true;
return merged;
}
// transform component v-model info (value and callback) into
// prop and event handler respectively.
function transformModel(options, data) {
const prop = (options.model && options.model.prop) || 'value';
const event = (options.model && options.model.event) || 'input';
(data.attrs || (data.attrs = {}))[prop] = data.model.value;
const on = data.on || (data.on = {});
const existing = on[event];
const callback = data.model.callback;
if (isDef(existing)) {
if (isArray(existing)
? existing.indexOf(callback) === -1
: existing !== callback) {
on[event] = [callback].concat(existing);
}
}
else {
on[event] = callback;
}
}
let warn$2 = noop;
let tip = noop;
let generateComponentTrace; // work around flow check
let formatComponentName;
if (process.env.NODE_ENV !== 'production') {
const hasConsole = typeof console !== 'undefined';
const classifyRE = /(?:^|[-_])(\w)/g;
const classify = str => str.replace(classifyRE, c => c.toUpperCase()).replace(/[-_]/g, '');
warn$2 = (msg, vm = currentInstance) => {
const trace = vm ? generateComponentTrace(vm) : '';
if (hasConsole && !config.silent) {
console.error(`[Vue warn]: ${msg}${trace}`);
}
};
tip = (msg, vm) => {
if (hasConsole && !config.silent) {
console.warn(`[Vue tip]: ${msg}` + (vm ? generateComponentTrace(vm) : ''));
}
};
formatComponentName = (vm, includeFile) => {
if (vm.$root === vm) {
return '<Root>';
}
const options = isFunction(vm) && vm.cid != null
? vm.options
: vm._isVue
? vm.$options || vm.constructor.options
: vm;
let name = getComponentName(options);
const file = options.__file;
if (!name && file) {
const match = file.match(/([^/\\]+)\.vue$/);
name = match && match[1];
}
return ((name ? `<${classify(name)}>` : `<Anonymous>`) +
(file && includeFile !== false ? ` at ${file}` : ''));
};
const repeat = (str, n) => {
let res = '';
while (n) {
if (n % 2 === 1)
res += str;
if (n > 1)
str += str;
n >>= 1;
}
return res;
};
generateComponentTrace = (vm) => {
if (vm._isVue && vm.$parent) {
const tree = [];
let currentRecursiveSequence = 0;
while (vm) {
if (tree.length > 0) {
const 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((vm, i) => `${i === 0 ? '---> ' : repeat(' ', 5 + i * 2)}${isArray(vm)
? `${formatComponentName(vm[0])}... (${vm[1]} recursive calls)`
: formatComponentName(vm)}`)
.join('\n'));
}
else {
return `\n\n(found in ${formatComponentName(vm)})`;
}
};
}
/**
* Option overwriting strategies are functions that handle
* how to merge a parent option value and a child option
* value into the final value.
*/
const strats = config.optionMergeStrategies;
/**
* Options with restrictions
*/
if (process.env.NODE_ENV !== 'production') {
strats.el = strats.propsData = function (parent, child, vm, key) {
if (!vm) {
warn$2(`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;
let key, toVal, fromVal;
const keys = hasSymbol
? Reflect.ownKeys(from)
: Object.keys(from);
for (let i = 0; i < keys.length; i++) {
key = keys[i];
// in case the object is already observed...
if (key === '__ob__')
continue;
toVal = to[key];
fromVal = from[key];
if (!hasOwn(to, key)) {
set(to, key, fromVal);
}
else if (toVal !== fromVal &&
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(isFunction(childVal) ? childVal.call(this, this) : childVal, isFunction(parentVal) ? parentVal.call(this, this) : parentVal);
};
}
else {
return function mergedInstanceDataFn() {
// instance merge
const instanceData = isFunction(childVal)
? childVal.call(vm, vm)
: childVal;
const defaultData = isFunction(parentVal)
? 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$2('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 mergeLifecycleHook(parentVal, childVal) {
const res = childVal
? parentVal
? parentVal.concat(childVal)
: isArray(childVal)
? childVal
: [childVal]
: parentVal;
return res ? dedupeHooks(res) : res;
}
function dedupeHooks(hooks) {
const res = [];
for (let i = 0; i < hooks.length; i++) {
if (res.indexOf(hooks[i]) === -1) {
res.push(hooks[i]);
}
}
return res;
}
LIFECYCLE_HOOKS.forEach(hook => {
strats[hook] = mergeLifecycleHook;
});
/**
* 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) {
const 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...
//@ts-expect-error work around
if (parentVal === nativeWatch)
parentVal = undefined;
//@ts-expect-error work around
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;
const ret = {};
extend(ret, parentVal);
for (const key in childVal) {
let parent = ret[key];
const child = childVal[key];
if (parent && !isArray(parent)) {
parent = [parent];
}
ret[key] = parent ? parent.concat(child) : 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;
const ret = Object.create(null);
extend(ret, parentVal);
if (childVal)
extend(ret, childVal);
return ret;
};
strats.provide = mergeDataOrFn;
/**
* Default strategy.
*/
const defaultStrat = function (parentVal, childVal) {
return childVal === undefined ? parentVal : childVal;
};
/**
* Validate component names
*/
function checkComponents(options) {
for (const key in options.components) {
validateComponentName(key);
}
}
function validateComponentName(name) {
if (!new RegExp(`^[a-zA-Z][\\-\\.0-9_${unicodeRegExp.source}]*$`).test(name)) {
warn$2('Invalid component name: "' +
name +
'". Component names ' +
'should conform to valid custom element name in html5 specification.');
}
if (isBuiltInTag(name) || config.isReservedTag(name)) {
warn$2('Do not use built-in or reserved HTML elements as component ' +
'id: ' +
name);
}
}
/**
* Ensure all props option syntax are normalized into the
* Object-based format.
*/
function normalizeProps(options, vm) {
const props = options.props;
if (!props)
return;
const res = {};
let i, val, name;
if (isArray(props)) {
i = props.length;
while (i--) {
val = props[i];
if (typeof val === 'string') {
name = camelize(val);
res[name] = { type: null };
}
else if (process.env.NODE_ENV !== 'production') {
warn$2('props must be strings when using array syntax.');
}
}
}
else if (isPlainObject(props)) {
for (const key in props) {
val = props[key];
name = camelize(key);
res[name] = isPlainObject(val) ? val : { type: val };
}
}
else if (process.env.NODE_ENV !== 'production') {
warn$2(`Invalid value for option "props": expected an Array or an Object, ` +
`but got ${toRawType(props)}.`, vm);
}
options.props = res;
}
/**
* Normalize all injections into Object-based format
*/
function normalizeInject(options, vm) {
const inject = options.inject;
if (!inject)
return;
const normalized = (options.inject = {});
if (isArray(inject)) {
for (let i = 0; i < inject.length; i++) {
normalized[inject[i]] = { from: inject[i] };
}
}
else if (isPlainObject(inject)) {
for (const key in inject) {
const val = inject[key];
normalized[key] = isPlainObject(val)
? extend({ from: key }, val)
: { from: val };
}
}
else if (process.env.NODE_ENV !== 'production') {
warn$2(`Invalid value for option "inject": expected an Array or an Object, ` +
`but got ${toRawType(inject)}.`, vm);
}
}
/**
* Normalize raw function directives into object format.
*/
function normalizeDirectives(options) {
const dirs = options.directives;
if (dirs) {
for (const key in dirs) {
const def = dirs[key];
if (isFunction(def)) {
dirs[key] = { bind: def, update: def };
}
}
}
}
function assertObjectType(name, value, vm) {
if (!isPlainObject(value)) {
warn$2(`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.
*/
function mergeOptions(parent, child, vm) {
if (process.env.NODE_ENV !== 'production') {
checkComponents(child);
}
if (isFunction(child)) {
// @ts-expect-error
child = child.options;
}
normalizeProps(child, vm);
normalizeInject(child, vm);
normalizeDirectives(child);
// Apply extends and mixins on the child options,
// but only if it is a raw options object that isn't
// the result of another mergeOptions call.
// Only merged options has the _base property.
if (!child._base) {
if (child.extends) {
parent = mergeOptions(parent, child.extends, vm);
}
if (child.mixins) {
for (let i = 0, l = child.mixins.length; i < l; i++) {
parent = mergeOptions(parent, child.mixins[i], vm);
}
}
}
const options = {};
let key;
for (key in parent) {
mergeField(key);
}
for (key in child) {
if (!hasOwn(parent, key)) {
mergeField(key);
}
}
function mergeField(key) {
const strat = strats[key] || defaultStrat;
options[key] = strat(parent[key], child[key], vm, key);
}
return options;
}
/**
* Resolve an asset.
* This function is used because child instances need access
* to assets defined in its ancestor chain.
*/
function resolveAsset(options, type, id, warnMissing) {
/* istanbul ignore if */
if (typeof id !== 'string') {
return;
}
const assets = options[type];
// check local registration variations first
if (hasOwn(assets, id))
return assets[id];
const camelizedId = camelize(id);
if (hasOwn(assets, camelizedId))
return assets[camelizedId];
const PascalCaseId = capitalize(camelizedId);
if (hasOwn(assets, PascalCaseId))
return assets[PascalCaseId];
// fallback to prototype chain
const res = assets[id] || assets[camelizedId] || assets[PascalCaseId];
if (process.env.NODE_ENV !== 'production' && warnMissing && !res) {
warn$2('Failed to resolve ' + type.slice(0, -1) + ': ' + id);
}
return res;
}
function validateProp(key, propOptions, propsData, vm) {
const prop = propOptions[key];
const absent = !hasOwn(propsData, key);
let value = propsData[key];
// boolean casting
const booleanIndex = getTypeIndex(Boolean, prop.type);
if (booleanIndex > -1) {
if (absent && !hasOwn(prop, 'default')) {
value = false;
}
else if (value === '' || value === hyphenate(key)) {
// only cast empty string / same name to boolean if
// boolean has higher priority
const stringIndex = getTypeIndex(String, prop.type);
if (stringIndex < 0 || booleanIndex < stringIndex) {
value = true;
}
}
}
// check default value
if (value === undefined) {
value = getPropDefaultValue(vm, prop, key);
// since the default value is a fresh copy,
// make sure to observe it.
const prevShouldObserve = shouldObserve;
toggleObserving(true);
observe(value);
toggleObserving(prevShouldObserve);
}
if (process.env.NODE_ENV !== 'production') {
assertProp(prop, key, value, vm, absent);
}
return value;
}
/**
* Get the default value of a prop.
*/
function getPropDefaultValue(vm, prop, key) {
// no default, return undefined
if (!hasOwn(prop, 'default')) {
return undefined;
}
const def = prop.default;
// warn against non-factory defaults for Object & Array
if (process.env.NODE_ENV !== 'production' && isObject(def)) {
warn$2('Invalid default value for prop "' +
key +
'": ' +
'Props with type Object/Array must use a factory function ' +
'to return the default value.', vm);
}
// the raw prop value was also undefined from previous render,
// return previous default value to avoid unnecessary watcher trigger
if (vm &&
vm.$options.propsData &&
vm.$options.propsData[key] === undefined &&
vm._props[key] !== undefined) {
return vm._props[key];
}
// call factory function for non-Function types
// a value is Function if its prototype is function even across different execution context
return isFunction(def) && getType(prop.type) !== 'Function'
? def.call(vm)
: def;
}
/**
* Assert whether a prop is valid.
*/
function assertProp(prop, name, value, vm, absent) {
if (prop.required && absent) {
warn$2('Missing required prop: "' + name + '"', vm);
return;
}
if (value == null && !prop.required) {
return;
}
let type = prop.type;
let valid = !type || type === true;
const expectedTypes = [];
if (type) {
if (!isArray(type)) {
type = [type];
}
for (let i = 0; i < type.length && !valid; i++) {
const assertedType = assertType(value, type[i], vm);
expectedTypes.push(assertedType.expectedType || '');
valid = assertedType.valid;
}
}
const haveExpectedTypes = expectedTypes.some(t => t);
if (!valid && haveExpectedTypes) {
warn$2(getInvalidTypeMessage(name, value, expectedTypes), vm);
return;
}
const validator = prop.validator;
if (validator) {
if (!validator(value)) {
warn$2('Invalid prop: custom validator check failed for prop "' + name + '".', vm);
}
}
}
const simpleCheckRE = /^(String|Number|Boolean|Function|Symbol|BigInt)$/;
function assertType(value, type, vm) {
let valid;
const expectedType = getType(type);
if (simpleCheckRE.test(expectedType)) {
const t = typeof value;
valid = t === expectedType.toLowerCase();
// for primitive wrapper objects
if (!valid && t === 'object') {
valid = value instanceof type;
}
}
else if (expectedType === 'Object') {
valid = isPlainObject(value);
}
else if (expectedType === 'Array') {
valid = isArray(value);
}
else {
try {
valid = value instanceof type;
}
catch (e) {
warn$2('Invalid prop type: "' + String(type) + '" is not a constructor', vm);
valid = false;
}
}
return {
valid,
expectedType
};
}
const functionTypeCheckRE = /^\s*function (\w+)/;
/**
* Use function string name to check built-in types,
* because a simple equality check will fail when running
* across different vms / iframes.
*/
function getType(fn) {
const match = fn && fn.toString().match(functionTypeCheckRE);
return match ? match[1] : '';
}
function isSameType(a, b) {
return getType(a) === getType(b);
}
function getTypeIndex(type, expectedTypes) {
if (!isArray(expectedTypes)) {
return isSameType(expectedTypes, type) ? 0 : -1;
}
for (let i = 0, len = expectedTypes.length; i < len; i++) {
if (isSameType(expectedTypes[i], type)) {
return i;
}
}
return -1;
}
function getInvalidTypeMessage(name, value, expectedTypes) {
let message = `Invalid prop: type check failed for prop "${name}".` +
` Expected ${expectedTypes.map(capitalize).join(', ')}`;
const expectedType = expectedTypes[0];
const receivedType = toRawType(value);
// check if we need to specify expected value
if (expectedTypes.length === 1 &&
isExplicable(expectedType) &&
isExplicable(typeof value) &&
!isBoolean(expectedType, receivedType)) {
message += ` with value ${styleValue(value, expectedType)}`;
}
message += `, got ${receivedType} `;
// check if we need to specify received value
if (isExplicable(receivedType)) {
message += `with value ${styleValue(value, receivedType)}.`;
}
return message;
}
function styleValue(value, type) {
if (type === 'String') {
return `"${value}"`;
}
else if (type === 'Number') {
return `${Number(value)}`;
}
else {
return `${value}`;
}
}
const EXPLICABLE_TYPES = ['string', 'number', 'boolean'];
function isExplicable(value) {
return EXPLICABLE_TYPES.some(elem => value.toLowerCase() === elem);
}
function isBoolean(...args) {
return args.some(elem => elem.toLowerCase() === 'boolean');
}
// these are reserved for web because they are directly compiled away
// during template compilation
makeMap('style,class');
// attributes that should be using props for binding
const acceptValue = makeMap('input,textarea,option,select,progress');
const mustUseProp = (tag, type, attr) => {
return ((attr === 'value' && acceptValue(tag) && type !== 'button') ||
(attr === 'selected' && tag === 'option') ||
(attr === 'checked' && tag === 'input') ||
(attr === 'muted' && tag === 'video'));
};
const isEnumeratedAttr = makeMap('contenteditable,draggable,spellcheck');
makeMap('events,caret,typing,plaintext-only');
const 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,' +
'truespeed,typemustmatch,visible');
const 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.
const 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);
const isPreTag = (tag) => tag === 'pre';
const isReservedTag = (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';
}
}
makeMap('text,number,password,search,email,tel,url');
const validDivisionCharRE = /[\w).+\-_$\]]/;
function parseFilters(exp) {
let inSingle = false;
let inDouble = false;
let inTemplateString = false;
let inRegex = false;
let curly = 0;
let square = 0;
let paren = 0;
let lastFilterIndex = 0;
let 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) {
// /
let j = i - 1;
let p;
// 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) {
const i = filter.indexOf('(');
if (i < 0) {
// _f: resolveFilter
return `_f("${filter}")(${exp})`;
}
else {
const name = filter.slice(0, i);
const args = filter.slice(i + 1);
return `_f("${name}")(${exp}${args !== ')' ? ',' + args : args}`;
}
}
const defaultTagRE = /\{\{((?:.|\r?\n)+?)\}\}/g;
const regexEscapeRE = /[-.*+?^${}()|[\]\/\\]/g;
const buildRegex = cached(delimiters => {
const open = delimiters[0].replace(regexEscapeRE, '\\$&');
const close = delimiters[1].replace(regexEscapeRE, '\\$&');
return new RegExp(open + '((?:.|\\n)+?)' + close, 'g');
});
function parseText(text, delimiters) {
//@ts-expect-error
const tagRE = delimiters ? buildRegex(delimiters) : defaultTagRE;
if (!tagRE.test(text)) {
return;
}
const tokens = [];
const rawTokens = [];
let lastIndex = (tagRE.lastIndex = 0);
let 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
const 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
};
}
/* eslint-disable no-unused-vars */
function baseWarn(msg, range) {
console.error(`[Vue compiler]: ${msg}`);
}
/* eslint-enable no-unused-vars */
function pluckModuleFunction(modules, key) {
return modules ? modules.map(m => m[key]).filter(_ => _) : [];
}
function addProp(el, name, value, range, dynamic) {
(el.props || (el.props = [])).push(rangeSetItem({ name, value, dynamic }, range));
el.plain = false;
}
function addAttr(el, name, value, range, dynamic) {
const attrs = dynamic
? el.dynamicAttrs || (el.dynamicAttrs = [])
: el.attrs || (el.attrs = []);
attrs.push(rangeSetItem({ name, value, dynamic }, range));
el.plain = false;
}
// add a raw attr (use this in preTransforms)
function addRawAttr(el, name, value, range) {
el.attrsMap[name] = value;
el.attrsList.push(rangeSetItem({ name, value }, range));
}
function addDirective(el, name, rawName, value, arg, isDynamicArg, modifiers, range) {
(el.directives || (el.directives = [])).push(rangeSetItem({
name,
rawName,
value,
arg,
isDynamicArg,
modifiers
}, range));
el.plain = false;
}
function prependModifierMarker(symbol, name, dynamic) {
return dynamic ? `_p(${name},"${symbol}")` : symbol + name; // mark the event as captured
}
function addHandler(el, name, value, modifiers, important, warn, range, dynamic) {
modifiers = modifiers || emptyObject;
// warn prevent and passive modifier
/* istanbul ignore if */
if (process.env.NODE_ENV !== 'production' && warn && modifiers.prevent && modifiers.passive) {
warn("passive and prevent can't be used together. " +
"Passive handler can't prevent default event.", range);
}
// normalize click.right and click.middle since they don't actually fire
// this is technically browser-specific, but at least for now browsers are
// the only target envs that have right/middle clicks.
if (modifiers.right) {
if (dynamic) {
name = `(${name})==='click'?'contextmenu':(${name})`;
}
else if (name === 'click') {
name = 'contextmenu';
delete modifiers.right;
}
}
else if (modifiers.middle) {
if (dynamic) {
name = `(${name})==='click'?'mouseup':(${name})`;
}
else if (name === 'click') {
name = 'mouseup';
}
}
// check capture modifier
if (modifiers.capture) {
delete modifiers.capture;
name = prependModifierMarker('!', name, dynamic);
}
if (modifiers.once) {
delete modifiers.once;
name = prependModifierMarker('~', name, dynamic);
}
/* istanbul ignore if */
if (modifiers.passive) {
delete modifiers.passive;
name = prependModifierMarker('&', name, dynamic);
}
let events;
if (modifiers.native) {
delete modifiers.native;
events = el.nativeEvents || (el.nativeEvents = {});
}
else {
events = el.events || (el.events = {});
}
const newHandler = rangeSetItem({ value: value.trim(), dynamic }, range);
if (modifiers !== emptyObject) {
newHandler.modifiers = modifiers;
}
const 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 getRawBindingAttr(el, name) {
return (el.rawAttrsMap[':' + name] ||
el.rawAttrsMap['v-bind:' + name] ||
el.rawAttrsMap[name]);
}
function getBindingAttr(el, name, getStatic) {
const dynamicValue = getAndRemoveAttr(el, ':' + name) || getAndRemoveAttr(el, 'v-bind:' + name);
if (dynamicValue != null) {
return parseFilters(dynamicValue);
}
else if (getStatic !== false) {
const 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) {
let val;
if ((val = el.attrsMap[name]) != null) {
const list = el.attrsList;
for (let 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 getAndRemoveAttrByRegex(el, name) {
const list = el.attrsList;
for (let i = 0, l = list.length; i < l; i++) {
const attr = list[i];
if (name.test(attr.name)) {
list.splice(i, 1);
return attr;
}
}
}
function rangeSetItem(item, range) {
if (range) {
if (range.start != null) {
item.start = range.start;
}
if (range.end != null) {
item.end = range.end;
}
}
return item;
}
function transformNode$1(el, options) {
const warn = options.warn || baseWarn;
const staticClass = getAndRemoveAttr(el, 'class');
if (process.env.NODE_ENV !== 'production' && staticClass) {
const res = parseText(staticClass, options.delimiters);
if (res) {
warn(`class="${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">.', el.rawAttrsMap['class']);
}
}
if (staticClass) {
el.staticClass = JSON.stringify(staticClass.replace(/\s+/g, ' ').trim());
}
const classBinding = getBindingAttr(el, 'class', false /* getStatic */);
if (classBinding) {
el.classBinding = classBinding;
}
}
function genData$2(el) {
let data = '';
if (el.staticClass) {
data += `staticClass:${el.staticClass},`;
}
if (el.classBinding) {
data += `class:${el.classBinding},`;
}
return data;
}
var klass = {
staticKeys: ['staticClass'],
transformNode: transformNode$1,
genData: genData$2
};
const parseStyleText = cached(function (cssText) {
const res = {};
const listDelimiter = /;(?![^(]*\))/g;
const propertyDelimiter = /:(.+)/;
cssText.split(listDelimiter).forEach(function (item) {
if (item) {
const tmp = item.split(propertyDelimiter);
tmp.length > 1 && (res[tmp[0].trim()] = tmp[1].trim());
}
});
return res;
});
function transformNode(el, options) {
const warn = options.warn || baseWarn;
const staticStyle = getAndRemoveAttr(el, 'style');
if (staticStyle) {
/* istanbul ignore if */
if (process.env.NODE_ENV !== 'production') {
const 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.rawAttrsMap['style']);
}
}
el.staticStyle = JSON.stringify(parseStyleText(staticStyle));
}
const styleBinding = getBindingAttr(el, 'style', false /* getStatic */);
if (styleBinding) {
el.styleBinding = styleBinding;
}
}
function genData$1(el) {
let data = '';
if (el.staticStyle) {
data += `staticStyle:${el.staticStyle},`;
}
if (el.styleBinding) {
data += `style:(${el.styleBinding}),`;
}
return data;
}
var style = {
staticKeys: ['staticStyle'],
transformNode,
genData: genData$1
};
/**
* Cross-platform code generation for component v-model
*/
function genComponentModel(el, value, modifiers) {
const { number, trim } = modifiers || {};
const baseValueExpression = '$$v';
let valueExpression = baseValueExpression;
if (trim) {
valueExpression =
`(typeof ${baseValueExpression} === 'string'` +
`? ${baseValueExpression}.trim()` +
`: ${baseValueExpression})`;
}
if (number) {
valueExpression = `_n(${valueExpression})`;
}
const assignment = genAssignmentCode(value, valueExpression);
el.model = {
value: `(${value})`,
expression: JSON.stringify(value),
callback: `function (${baseValueExpression}) {${assignment}}`
};
}
/**
* Cross-platform codegen helper for generating v-model value assignment code.
*/
function genAssignmentCode(value, assignment) {
const res = parseModel(value);
if (res.key === null) {
return `${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]]
*
*/
let len, str, chr, index, expressionPos, 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) {
let 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) {
const stringQuote = chr;
while (!eof()) {
chr = next();
if (chr === stringQuote) {
break;
}
}
}
const onRE = /^@|^v-on:/;
const dirRE = /^v-|^@|^:|^#/;
const forAliasRE = /([\s\S]*?)\s+(?:in|of)\s+([\s\S]*)/;
const forIteratorRE = /,([^,\}\]]*)(?:,([^,\}\]]*))?$/;
const stripParensRE = /^\(|\)$/g;
const dynamicArgRE = /^\[.*\]$/;
const argRE = /:(.*)$/;
const bindRE = /^:|^\.|^v-bind:/;
const modifierRE = /\.[^.\]]+(?=[^\]]*$)/g;
const slotRE = /^v-slot(:|$)|^#/;
const lineBreakRE = /[\r\n]/;
const whitespaceRE = /[ \f\t\r\n]+/g;
const invalidAttributeRE = /[\s"'<>\/=]/;
const decodeHTMLCached = cached(he__default["default"].decode);
const emptySlotScopeToken = `_empty_`;
// configurable state
let warn$1;
let delimiters;
let transforms;
let preTransforms;
let postTransforms;
let platformIsPreTag;
let platformMustUseProp;
let platformGetTagNamespace;
let maybeComponent;
function createASTElement(tag, attrs, parent) {
return {
type: 1,
tag,
attrsList: attrs,
attrsMap: makeAttrsMap(attrs),
rawAttrsMap: {},
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;
const isReservedTag = options.isReservedTag || no;
maybeComponent = (el) => !!(el.component ||
el.attrsMap[':is'] ||
el.attrsMap['v-bind:is'] ||
!(el.attrsMap.is ? isReservedTag(el.attrsMap.is) : isReservedTag(el.tag)));
transforms = pluckModuleFunction(options.modules, 'transformNode');
preTransforms = pluckModuleFunction(options.modules, 'preTransformNode');
postTransforms = pluckModuleFunction(options.modules, 'postTransformNode');
delimiters = options.delimiters;
const stack = [];
const preserveWhitespace = options.preserveWhitespace !== false;
const whitespaceOption = options.whitespace;
let root;
let currentParent;
let inVPre = false;
let inPre = false;
let warned = false;
function warnOnce(msg, range) {
if (!warned) {
warned = true;
warn$1(msg, range);
}
}
function closeElement(element) {
trimEndingWhitespace(element);
if (!inVPre && !element.processed) {
element = processElement(element, options);
}
// tree management
if (!stack.length && element !== root) {
// allow root elements with v-if, v-else-if and v-else
if (root.if && (element.elseif || element.else)) {
if (process.env.NODE_ENV !== 'production') {
checkRootConstraints(element);
}
addIfCondition(root, {
exp: element.elseif,
block: element
});
}
else if (process.env.NODE_ENV !== 'production') {
warnOnce(`Component template should contain exactly one root element. ` +
`If you are using v-if on multiple elements, ` +
`use v-else-if to chain them instead.`, { start: element.start });
}
}
if (currentParent && !element.forbidden) {
if (element.elseif || element.else) {
processIfConditions(element, currentParent);
}
else {
if (element.slotScope) {
// scoped slot
// keep it in the children list so that v-else(-if) conditions can
// find it as the prev node.
const name = element.slotTarget || '"default"';
(currentParent.scopedSlots || (currentParent.scopedSlots = {}))[name] = element;
}
currentParent.children.push(element);
element.parent = currentParent;
}
}
// final children cleanup
// filter out scoped slots
element.children = element.children.filter(c => !c.slotScope);
// remove trailing whitespace node again
trimEndingWhitespace(element);
// check pre state
if (element.pre) {
inVPre = false;
}
if (platformIsPreTag(element.tag)) {
inPre = false;
}
// apply post-transforms
for (let i = 0; i < postTransforms.length; i++) {
postTransforms[i](element, options);
}
}
function trimEndingWhitespace(el) {
// remove trailing whitespace node
if (!inPre) {
let lastNode;
while ((lastNode = el.children[el.children.length - 1]) &&
lastNode.type === 3 &&
lastNode.text === ' ') {
el.children.pop();
}
}
}
function checkRootConstraints(el) {
if (el.tag === 'slot' || el.tag === 'template') {
warnOnce(`Cannot use <${el.tag}> as component root element because it may ` +
'contain multiple nodes.', { start: el.start });
}
if (el.attrsMap.hasOwnProperty('v-for')) {
warnOnce('Cannot use v-for on stateful component root element because ' +
'it renders multiple elements.', el.rawAttrsMap['v-for']);
}
}
parseHTML(template, {
warn: warn$1,
expectHTML: options.expectHTML,
isUnaryTag: options.isUnaryTag,
canBeLeftOpenTag: options.canBeLeftOpenTag,
shouldDecodeNewlines: options.shouldDecodeNewlines,
shouldDecodeNewlinesForHref: options.shouldDecodeNewlinesForHref,
shouldKeepComment: options.comments,
outputSourceRange: options.outputSourceRange,
start(tag, attrs, unary, start, end) {
// check namespace.
// inherit parent ns if there is one
const ns = (currentParent && currentParent.ns) || platformGetTagNamespace(tag);
// handle IE svg bug
/* istanbul ignore if */
if (isIE && ns === 'svg') {
attrs = guardIESVGBug(attrs);
}
let element = createASTElement(tag, attrs, currentParent);
if (ns) {
element.ns = ns;
}
if (process.env.NODE_ENV !== 'production') {
if (options.outputSourceRange) {
element.start = start;
element.end = end;
element.rawAttrsMap = element.attrsList.reduce((cumulated, attr) => {
cumulated[attr.name] = attr;
return cumulated;
}, {});
}
attrs.forEach(attr => {
if (invalidAttributeRE.test(attr.name)) {
warn$1(`Invalid dynamic argument expression: attribute names cannot contain ` +
`spaces, quotes, <, >, / or =.`, options.outputSourceRange
? {
start: attr.start + attr.name.indexOf(`[`),
end: attr.start + attr.name.length
}
: undefined);
}
});
}
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.', { start: element.start });
}
// apply pre-transforms
for (let 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);
}
if (!root) {
root = element;
if (process.env.NODE_ENV !== 'production') {
checkRootConstraints(root);
}
}
if (!unary) {
currentParent = element;
stack.push(element);
}
else {
closeElement(element);
}
},
end(tag, start, end) {
const element = stack[stack.length - 1];
// pop stack
stack.length -= 1;
currentParent = stack[stack.length - 1];
if (process.env.NODE_ENV !== 'production' && options.outputSourceRange) {
element.end = end;
}
closeElement(element);
},
chars(text, start, end) {
if (!currentParent) {
if (process.env.NODE_ENV !== 'production') {
if (text === template) {
warnOnce('Component template requires a root element, rather than just text.', { start });
}
else if ((text = text.trim())) {
warnOnce(`text "${text}" outside root element will be ignored.`, {
start
});
}
}
return;
}
// IE textarea placeholder bug
/* istanbul ignore if */
if (isIE &&
currentParent.tag === 'textarea' &&
currentParent.attrsMap.placeholder === text) {
return;
}
const children = currentParent.children;
if (inPre || text.trim()) {
text = isTextTag(currentParent)
? text
: decodeHTMLCached(text);
}
else if (!children.length) {
// remove the whitespace-only node right after an opening tag
text = '';
}
else if (whitespaceOption) {
if (whitespaceOption === 'condense') {
// in condense mode, remove the whitespace node if it contains
// line break, otherwise condense to a single space
text = lineBreakRE.test(text) ? '' : ' ';
}
else {
text = ' ';
}
}
else {
text = preserveWhitespace ? ' ' : '';
}
if (text) {
if (!inPre && whitespaceOption === 'condense') {
// condense consecutive whitespaces into single space
text = text.replace(whitespaceRE, ' ');
}
let res;
let child;
if (!inVPre && text !== ' ' && (res = parseText(text, delimiters))) {
child = {
type: 2,
expression: res.expression,
tokens: res.tokens,
text
};
}
else if (text !== ' ' ||
!children.length ||
children[children.length - 1].text !== ' ') {
child = {
type: 3,
text
};
}
if (child) {
if (process.env.NODE_ENV !== 'production' && options.outputSourceRange) {
child.start = start;
child.end = end;
}
children.push(child);
}
}
},
comment(text, start, end) {
// adding anything as a sibling to the root node is forbidden
// comments should still be allowed, but ignored
if (currentParent) {
const child = {
type: 3,
text,
isComment: true
};
if (process.env.NODE_ENV !== 'production' && options.outputSourceRange) {
child.start = start;
child.end = end;
}
currentParent.children.push(child);
}
}
});
return root;
}
function processPre(el) {
if (getAndRemoveAttr(el, 'v-pre') != null) {
el.pre = true;
}
}
function processRawAttrs(el) {
const list = el.attrsList;
const len = list.length;
if (len) {
const attrs = (el.attrs = new Array(len));
for (let i = 0; i < len; i++) {
attrs[i] = {
name: list[i].name,
value: JSON.stringify(list[i].value)
};
if (list[i].start != null) {
attrs[i].start = list[i].start;
attrs[i].end = list[i].end;
}
}
}
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.scopedSlots && !element.attrsList.length;
processRef(element);
processSlotContent(element);
processSlotOutlet(element);
processComponent(element);
for (let i = 0; i < transforms.length; i++) {
element = transforms[i](element, options) || element;
}
processAttrs(element);
return element;
}
function processKey(el) {
const exp = getBindingAttr(el, 'key');
if (exp) {
if (process.env.NODE_ENV !== 'production') {
if (el.tag === 'template') {
warn$1(`<template> cannot be keyed. Place the key on real elements instead.`, getRawBindingAttr(el, 'key'));
}
if (el.for) {
const iterator = el.iterator2 || el.iterator1;
const parent = el.parent;
if (iterator &&
iterator === exp &&
parent &&
parent.tag === 'transition-group') {
warn$1(`Do not use v-for index as key on <transition-group> children, ` +
`this is the same as not using keys.`, getRawBindingAttr(el, 'key'), true /* tip */);
}
}
}
el.key = exp;
}
}
function processRef(el) {
const ref = getBindingAttr(el, 'ref');
if (ref) {
el.ref = ref;
el.refInFor = checkInFor(el);
}
}
function processFor(el) {
let exp;
if ((exp = getAndRemoveAttr(el, 'v-for'))) {
const res = parseFor(exp);
if (res) {
extend(el, res);
}
else if (process.env.NODE_ENV !== 'production') {
warn$1(`Invalid v-for expression: ${exp}`, el.rawAttrsMap['v-for']);
}
}
}
function parseFor(exp) {
const inMatch = exp.match(forAliasRE);
if (!inMatch)
return;
const res = {};
res.for = inMatch[2].trim();
const alias = inMatch[1].trim().replace(stripParensRE, '');
const iteratorMatch = alias.match(forIteratorRE);
if (iteratorMatch) {
res.alias = alias.replace(forIteratorRE, '').trim();
res.iterator1 = iteratorMatch[1].trim();
if (iteratorMatch[2]) {
res.iterator2 = iteratorMatch[2].trim();
}
}
else {
res.alias = alias;
}
return res;
}
function processIf(el) {
const 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;
}
const elseif = getAndRemoveAttr(el, 'v-else-if');
if (elseif) {
el.elseif = elseif;
}
}
}
function processIfConditions(el, parent) {
const 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.`, el.rawAttrsMap[el.elseif ? 'v-else-if' : 'v-else']);
}
}
function findPrevElement(children) {
let 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[i]);
}
children.pop();
}
}
}
function addIfCondition(el, condition) {
if (!el.ifConditions) {
el.ifConditions = [];
}
el.ifConditions.push(condition);
}
function processOnce(el) {
const once = getAndRemoveAttr(el, 'v-once');
if (once != null) {
el.once = true;
}
}
// handle content being passed to a component as slot,
// e.g. <template slot="xxx">, <div slot-scope="xxx">
function processSlotContent(el) {
let 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.`, el.rawAttrsMap['scope'], 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.`, el.rawAttrsMap['slot-scope'], true);
}
el.slotScope = slotScope;
}
// slot="xxx"
const slotTarget = getBindingAttr(el, 'slot');
if (slotTarget) {
el.slotTarget = slotTarget === '""' ? '"default"' : slotTarget;
el.slotTargetDynamic = !!(el.attrsMap[':slot'] || el.attrsMap['v-bind:slot']);
// 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, getRawBindingAttr(el, 'slot'));
}
}
// 2.6 v-slot syntax
{
if (el.tag === 'template') {
// v-slot on <template>
const slotBinding = getAndRemoveAttrByRegex(el, slotRE);
if (slotBinding) {
if (process.env.NODE_ENV !== 'production') {
if (el.slotTarget || el.slotScope) {
warn$1(`Unexpected mixed usage of different slot syntaxes.`, el);
}
if (el.parent && !maybeComponent(el.parent)) {
warn$1(`<template v-slot> can only appear at the root level inside ` +
`the receiving component`, el);
}
}
const { name, dynamic } = getSlotName(slotBinding);
el.slotTarget = name;
el.slotTargetDynamic = dynamic;
el.slotScope = slotBinding.value || emptySlotScopeToken; // force it into a scoped slot for perf
}
}
else {
// v-slot on component, denotes default slot
const slotBinding = getAndRemoveAttrByRegex(el, slotRE);
if (slotBinding) {
if (process.env.NODE_ENV !== 'production') {
if (!maybeComponent(el)) {
warn$1(`v-slot can only be used on components or <template>.`, slotBinding);
}
if (el.slotScope || el.slotTarget) {
warn$1(`Unexpected mixed usage of different slot syntaxes.`, el);
}
if (el.scopedSlots) {
warn$1(`To avoid scope ambiguity, the default slot should also use ` +
`<template> syntax when there are other named slots.`, slotBinding);
}
}
// add the component's children to its default slot
const slots = el.scopedSlots || (el.scopedSlots = {});
const { name, dynamic } = getSlotName(slotBinding);
const slotContainer = (slots[name] = createASTElement('template', [], el));
slotContainer.slotTarget = name;
slotContainer.slotTargetDynamic = dynamic;
slotContainer.children = el.children.filter((c) => {
if (!c.slotScope) {
c.parent = slotContainer;
return true;
}
});
slotContainer.slotScope = slotBinding.value || emptySlotScopeToken;
// remove children as they are returned from scopedSlots now
el.children = [];
// mark el non-plain so data gets generated
el.plain = false;
}
}
}
}
function getSlotName(binding) {
let name = binding.name.replace(slotRE, '');
if (!name) {
if (binding.name[0] !== '#') {
name = 'default';
}
else if (process.env.NODE_ENV !== 'production') {
warn$1(`v-slot shorthand syntax requires a slot name.`, binding);
}
}
return dynamicArgRE.test(name)
? // dynamic [name]
{ name: name.slice(1, -1), dynamic: true }
: // static name
{ name: `"${name}"`, dynamic: false };
}
// handle <slot/> outlets
function processSlotOutlet(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.`, getRawBindingAttr(el, 'key'));
}
}
}
function processComponent(el) {
let binding;
if ((binding = getBindingAttr(el, 'is'))) {
el.component = binding;
}
if (getAndRemoveAttr(el, 'inline-template') != null) {
el.inlineTemplate = true;
}
}
function processAttrs(el) {
const list = el.attrsList;
let i, l, name, rawName, value, modifiers, syncGen, isDynamic;
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.replace(dirRE, ''));
// support .foo shorthand syntax for the .prop modifier
if (modifiers) {
name = name.replace(modifierRE, '');
}
if (bindRE.test(name)) {
// v-bind
name = name.replace(bindRE, '');
value = parseFilters(value);
isDynamic = dynamicArgRE.test(name);
if (isDynamic) {
name = name.slice(1, -1);
}
if (process.env.NODE_ENV !== 'production' && value.trim().length === 0) {
warn$1(`The value for a v-bind expression cannot be empty. Found in "v-bind:${name}"`);
}
if (modifiers) {
if (modifiers.prop && !isDynamic) {
name = camelize(name);
if (name === 'innerHtml')
name = 'innerHTML';
}
if (modifiers.camel && !isDynamic) {
name = camelize(name);
}
if (modifiers.sync) {
syncGen = genAssignmentCode(value, `$event`);
if (!isDynamic) {
addHandler(el, `update:${camelize(name)}`, syncGen, null, false, warn$1, list[i]);
if (hyphenate(name) !== camelize(name)) {
addHandler(el, `update:${hyphenate(name)}`, syncGen, null, false, warn$1, list[i]);
}
}
else {
// handler w/ dynamic event name
addHandler(el, `"update:"+(${name})`, syncGen, null, false, warn$1, list[i], true // dynamic
);
}
}
}
if ((modifiers && modifiers.prop) ||
(!el.component && platformMustUseProp(el.tag, el.attrsMap.type, name))) {
addProp(el, name, value, list[i], isDynamic);
}
else {
addAttr(el, name, value, list[i], isDynamic);
}
}
else if (onRE.test(name)) {
// v-on
name = name.replace(onRE, '');
isDynamic = dynamicArgRE.test(name);
if (isDynamic) {
name = name.slice(1, -1);
}
addHandler(el, name, value, modifiers, false, warn$1, list[i], isDynamic);
}
else {
// normal directives
name = name.replace(dirRE, '');
// parse arg
const argMatch = name.match(argRE);
let arg = argMatch && argMatch[1];
isDynamic = false;
if (arg) {
name = name.slice(0, -(arg.length + 1));
if (dynamicArgRE.test(arg)) {
arg = arg.slice(1, -1);
isDynamic = true;
}
}
addDirective(el, name, rawName, value, arg, isDynamic, modifiers, list[i]);
if (process.env.NODE_ENV !== 'production' && name === 'model') {
checkForAliasModel(el, value);
}
}
}
else {
// literal attribute
if (process.env.NODE_ENV !== 'production') {
const 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">.', list[i]);
}
}
addAttr(el, name, JSON.stringify(value), list[i]);
// #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', list[i]);
}
}
}
}
function checkInFor(el) {
let parent = el;
while (parent) {
if (parent.for !== undefined) {
return true;
}
parent = parent.parent;
}
return false;
}
function parseModifiers(name) {
const match = name.match(modifierRE);
if (match) {
const ret = {};
match.forEach(m => {
ret[m.slice(1)] = true;
});
return ret;
}
}
function makeAttrsMap(attrs) {
const map = {};
for (let 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, attrs[i]);
}
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')));
}
const ieNSBug = /^xmlns:NS\d+/;
const ieNSPrefix = /^NS\d+:/;
/* istanbul ignore next */
function guardIESVGBug(attrs) {
const res = [];
for (let i = 0; i < attrs.length; i++) {
const attr = attrs[i];
if (!ieNSBug.test(attr.name)) {
attr.name = attr.name.replace(ieNSPrefix, '');
res.push(attr);
}
}
return res;
}
function checkForAliasModel(el, value) {
let _el = el;
while (_el) {
if (_el.for && _el.alias === value) {
warn$1(`<${el.tag} v-model="${value}">: ` +
`You are binding v-model directly to a v-for iteration alias. ` +
`This will not be able to modify the v-for source array because ` +
`writing to the alias is like modifying a function local variable. ` +
`Consider using an array of objects and use v-model on an object property instead.`, el.rawAttrsMap['v-model']);
}
_el = _el.parent;
}
}
/**
* Expand input[v-model] with dynamic type bindings into v-if-else chains
* Turn this:
* <input v-model="data[type]" :type="type">
* into this:
* <input v-if="type === 'checkbox'" type="checkbox" v-model="data[type]">
* <input v-else-if="type === 'radio'" type="radio" v-model="data[type]">
* <input v-else :type="type" v-model="data[type]">
*/
function preTransformNode(el, options) {
if (el.tag === 'input') {
const map = el.attrsMap;
if (!map['v-model']) {
return;
}
let typeBinding;
if (map[':type'] || map['v-bind:type']) {
typeBinding = getBindingAttr(el, 'type');
}
if (!map.type && !typeBinding && map['v-bind']) {
typeBinding = `(${map['v-bind']}).type`;
}
if (typeBinding) {
const ifCondition = getAndRemoveAttr(el, 'v-if', true);
const ifConditionExtra = ifCondition ? `&&(${ifCondition})` : ``;
const hasElse = getAndRemoveAttr(el, 'v-else', true) != null;
const elseIfCondition = getAndRemoveAttr(el, 'v-else-if', true);
// 1. checkbox
const branch0 = cloneASTElement(el);
// process for on the main node
processFor(branch0);
addRawAttr(branch0, 'type', 'checkbox');
processElement(branch0, options);
branch0.processed = true; // prevent it from double-processed
branch0.if = `(${typeBinding})==='checkbox'` + ifConditionExtra;
addIfCondition(branch0, {
exp: branch0.if,
block: branch0
});
// 2. add radio else-if condition
const 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
const 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$1 = {
preTransformNode
};
var modules = [klass, style, model$1];
let warn;
// in some cases, the event used has to be determined at runtime
// so we used some reserved tokens during compile.
const RANGE_TOKEN = '__r';
function model(el, dir, _warn) {
warn = _warn;
const value = dir.value;
const modifiers = dir.modifiers;
const tag = el.tag;
const type = el.attrsMap.type;
if (process.env.NODE_ENV !== 'production') {
// inputs with type="file" are read only and setting the input's
// value will throw an error.
if (tag === 'input' && type === 'file') {
warn(`<${el.tag} v-model="${value}" type="file">:\n` +
`File inputs are read only. Use a v-on:change listener instead.`, el.rawAttrsMap['v-model']);
}
}
if (el.component) {
genComponentModel(el, value, modifiers);
// component v-model doesn't need extra runtime
return false;
}
else if (tag === 'select') {
genSelect(el, value, modifiers);
}
else if (tag === 'input' && type === 'checkbox') {
genCheckboxModel(el, value, modifiers);
}
else if (tag === 'input' && type === 'radio') {
genRadioModel(el, value, modifiers);
}
else if (tag === 'input' || tag === 'textarea') {
genDefaultModel(el, value, modifiers);
}
else {
genComponentModel(el, value, modifiers);
// component v-model doesn't need extra runtime
return false;
}
// ensure runtime directive metadata
return true;
}
function genCheckboxModel(el, value, modifiers) {
const number = modifiers && modifiers.number;
const valueBinding = getBindingAttr(el, 'value') || 'null';
const trueValueBinding = getBindingAttr(el, 'true-value') || 'true';
const falseValueBinding = getBindingAttr(el, 'false-value') || 'false';
addProp(el, 'checked', `Array.isArray(${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, '$$c')}}`, null, true);
}
function genRadioModel(el, value, modifiers) {
const number = modifiers && modifiers.number;
let valueBinding = getBindingAttr(el, 'value') || 'null';
valueBinding = number ? `_n(${valueBinding})` : valueBinding;
addProp(el, 'checked', `_q(${value},${valueBinding})`);
addHandler(el, 'change', genAssignmentCode(value, valueBinding), null, true);
}
function genSelect(el, value, modifiers) {
const number = modifiers && modifiers.number;
const selectedVal = `Array.prototype.filter` +
`.call($event.target.options,function(o){return o.selected})` +
`.map(function(o){var val = "_value" in o ? o._value : o.value;` +
`return ${number ? '_n(val)' : 'val'}})`;
const assignment = '$event.target.multiple ? $$selectedVal : $$selectedVal[0]';
let code = `var $$selectedVal = ${selectedVal};`;
code = `${code} ${genAssignmentCode(value, assignment)}`;
addHandler(el, 'change', code, null, true);
}
function genDefaultModel(el, value, modifiers) {
const type = el.attrsMap.type;
// warn if v-bind:value conflicts with v-model
// except for inputs with v-bind:type
if (process.env.NODE_ENV !== 'production') {
const value = el.attrsMap['v-bind:value'] || el.attrsMap[':value'];
const typeBinding = el.attrsMap['v-bind:type'] || el.attrsMap[':type'];
if (value && !typeBinding) {
const binding = el.attrsMap['v-bind:value'] ? 'v-bind:value' : ':value';
warn(`${binding}="${value}" conflicts with v-model on the same element ` +
'because the latter already expands to a value binding internally', el.rawAttrsMap[binding]);
}
}
const { lazy, number, trim } = modifiers || {};
const needCompositionGuard = !lazy && type !== 'range';
const event = lazy ? 'change' : type === 'range' ? RANGE_TOKEN : 'input';
let valueExpression = '$event.target.value';
if (trim) {
valueExpression = `$event.target.value.trim()`;
}
if (number) {
valueExpression = `_n(${valueExpression})`;
}
let 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(${dir.value})`, dir);
}
}
function html(el, dir) {
if (dir.value) {
addProp(el, 'innerHTML', `_s(${dir.value})`, dir);
}
}
var directives = {
model,
text,
html
};
const baseOptions = {
expectHTML: true,
modules,
directives,
isPreTag,
isUnaryTag,
mustUseProp,
canBeLeftOpenTag,
isReservedTag,
getTagNamespace,
staticKeys: genStaticKeys$1(modules)
};
let isStaticKey;
let isPlatformReservedTag$1;
const genStaticKeysCached = cached(genStaticKeys);
/**
* 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$1(root, options) {
if (!root)
return;
isStaticKey = genStaticKeysCached(options.staticKeys || '');
isPlatformReservedTag$1 = options.isReservedTag || no;
// first pass: mark all non-static nodes.
markStatic(root);
// second pass: mark static roots.
markStaticRoots(root, false);
}
function genStaticKeys(keys) {
return makeMap('type,tag,attrsList,attrsMap,plain,parent,children,attrs,start,end,rawAttrsMap' +
(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$1(node.tag) &&
node.tag !== 'slot' &&
node.attrsMap['inline-template'] == null) {
return;
}
for (let i = 0, l = node.children.length; i < l; i++) {
const child = node.children[i];
markStatic(child);
if (!child.static) {
node.static = false;
}
}
if (node.ifConditions) {
for (let i = 1, l = node.ifConditions.length; i < l; i++) {
const block = node.ifConditions[i].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 (let i = 0, l = node.children.length; i < l; i++) {
markStaticRoots(node.children[i], isInFor || !!node.for);
}
}
if (node.ifConditions) {
for (let i = 1, l = node.ifConditions.length; i < l; i++) {
markStaticRoots(node.ifConditions[i].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$1(node.tag) && // not a component
!isDirectChildOfTemplateFor(node) &&
Object.keys(node).every(isStaticKey)));
}
function isDirectChildOfTemplateFor(node) {
while (node.parent) {
node = node.parent;
if (node.tag !== 'template') {
return false;
}
if (node.for) {
return true;
}
}
return false;
}
const fnExpRE = /^([\w$_]+|\([^)]*?\))\s*=>|^function(?:\s+[\w$]+)?\s*\(/;
const fnInvokeRE = /\([^)]*?\);*$/;
const simplePathRE = /^[A-Za-z_$][\w$]*(?:\.[A-Za-z_$][\w$]*|\['[^']*?']|\["[^"]*?"]|\[\d+]|\[[A-Za-z_$][\w$]*])*$/;
// KeyboardEvent.keyCode aliases
const keyCodes = {
esc: 27,
tab: 9,
enter: 13,
space: 32,
up: 38,
left: 37,
right: 39,
down: 40,
delete: [8, 46]
};
// KeyboardEvent.key aliases
const keyNames = {
// #7880: IE11 and Edge use `Esc` for Escape key name.
esc: ['Esc', 'Escape'],
tab: 'Tab',
enter: 'Enter',
// #9112: IE11 uses `Spacebar` for Space key name.
space: [' ', 'Spacebar'],
// #7806: IE11 uses key names without `Arrow` prefix for arrow keys.
up: ['Up', 'ArrowUp'],
left: ['Left', 'ArrowLeft'],
right: ['Right', 'ArrowRight'],
down: ['Down', 'ArrowDown'],
// #9112: IE11 uses `Del` for Delete key name.
delete: ['Backspace', 'Delete', 'Del']
};
// #4868: modifiers that prevent the execution of the listener
// need to explicitly return null so that we can determine whether to remove
// the listener for .once
const genGuard = condition => `if(${condition})return null;`;
const 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 && $event.button !== 2`)
};
function genHandlers(events, isNative) {
const prefix = isNative ? 'nativeOn:' : 'on:';
let staticHandlers = ``;
let dynamicHandlers = ``;
for (const name in events) {
const handlerCode = genHandler(events[name]);
//@ts-expect-error
if (events[name] && events[name].dynamic) {
dynamicHandlers += `${name},${handlerCode},`;
}
else {
staticHandlers += `"${name}":${handlerCode},`;
}
}
staticHandlers = `{${staticHandlers.slice(0, -1)}}`;
if (dynamicHandlers) {
return prefix + `_d(${staticHandlers},[${dynamicHandlers.slice(0, -1)}])`;
}
else {
return prefix + staticHandlers;
}
}
function genHandler(handler) {
if (!handler) {
return 'function(){}';
}
if (Array.isArray(handler)) {
return `[${handler.map(handler => genHandler(handler)).join(',')}]`;
}
const isMethodPath = simplePathRE.test(handler.value);
const isFunctionExpression = fnExpRE.test(handler.value);
const isFunctionInvocation = simplePathRE.test(handler.value.replace(fnInvokeRE, ''));
if (!handler.modifiers) {
if (isMethodPath || isFunctionExpression) {
return handler.value;
}
return `function($event){${isFunctionInvocation ? `return ${handler.value}` : handler.value}}`; // inline statement
}
else {
let code = '';
let genModifierCode = '';
const keys = [];
for (const key in handler.modifiers) {
if (modifierCode[key]) {
genModifierCode += modifierCode[key];
// left/right
if (keyCodes[key]) {
keys.push(key);
}
}
else if (key === 'exact') {
const modifiers = handler.modifiers;
genModifierCode += genGuard(['ctrl', 'shift', 'alt', 'meta']
.filter(keyModifier => !modifiers[keyModifier])
.map(keyModifier => `$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;
}
const handlerCode = isMethodPath
? `return ${handler.value}.apply(null, arguments)`
: isFunctionExpression
? `return (${handler.value}).apply(null, arguments)`
: isFunctionInvocation
? `return ${handler.value}`
: handler.value;
return `function($event){${code}${handlerCode}}`;
}
}
function genKeyFilter(keys) {
return (
// make sure the key filters only apply to KeyboardEvents
// #9441: can't use 'keyCode' in $event because Chrome autofill fires fake
// key events that do not have keyCode property...
`if(!$event.type.indexOf('key')&&` +
`${keys.map(genFilterCode).join('&&')})return null;`);
}
function genFilterCode(key) {
const keyVal = parseInt(key, 10);
if (keyVal) {
return `$event.keyCode!==${keyVal}`;
}
const keyCode = keyCodes[key];
const keyName = keyNames[key];
return (`_k($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$2(`v-on without argument does not support modifiers.`);
}
el.wrapListeners = (code) => `_g(${code},${dir.value})`;
}
function bind(el, dir) {
el.wrapData = (code) => {
return `_b(${code},'${el.tag}',${dir.value},${dir.modifiers && dir.modifiers.prop ? 'true' : 'false'}${dir.modifiers && dir.modifiers.sync ? ',true' : ''})`;
};
}
var baseDirectives = {
on,
bind,
cloak: noop
};
class CodegenState {
constructor(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);
const isReservedTag = options.isReservedTag || no;
this.maybeComponent = (el) => !!el.component || !isReservedTag(el.tag);
this.onceId = 0;
this.staticRenderFns = [];
this.pre = false;
}
}
function generate$1(ast, options) {
const state = new CodegenState(options);
// fix #11483, Root level <script> tags should not be rendered.
const code = ast
? ast.tag === 'script'
? 'null'
: genElement(ast, state)
: '_c("div")';
return {
render: `with(this){return ${code}}`,
staticRenderFns: state.staticRenderFns
};
}
function genElement(el, state) {
if (el.parent) {
el.pre = el.pre || el.parent.pre;
}
if (el.staticRoot && !el.staticProcessed) {
return genStatic(el, state);
}
else if (el.once && !el.onceProcessed) {
return genOnce(el, state);
}
else if (el.for && !el.forProcessed) {
return genFor(el, state);
}
else if (el.if && !el.ifProcessed) {
return genIf(el, state);
}
else if (el.tag === 'template' && !el.slotTarget && !state.pre) {
return genChildren(el, state) || 'void 0';
}
else if (el.tag === 'slot') {
return genSlot(el, state);
}
else {
// component or element
let code;
if (el.component) {
code = genComponent(el.component, el, state);
}
else {
let data;
const maybeComponent = state.maybeComponent(el);
if (!el.plain || (el.pre && maybeComponent)) {
data = genData(el, state);
}
let tag;
// check if this is a component in <script setup>
const bindings = state.options.bindings;
if (maybeComponent && bindings && bindings.__isScriptSetup !== false) {
tag = checkBindingType(bindings, el.tag);
}
if (!tag)
tag = `'${el.tag}'`;
const children = el.inlineTemplate ? null : genChildren(el, state, true);
code = `_c(${tag}${data ? `,${data}` : '' // data
}${children ? `,${children}` : '' // children
})`;
}
// module transforms
for (let i = 0; i < state.transforms.length; i++) {
code = state.transforms[i](el, code);
}
return code;
}
}
function checkBindingType(bindings, key) {
const camelName = camelize(key);
const PascalName = capitalize(camelName);
const checkType = (type) => {
if (bindings[key] === type) {
return key;
}
if (bindings[camelName] === type) {
return camelName;
}
if (bindings[PascalName] === type) {
return PascalName;
}
};
const fromConst = checkType("setup-const" /* BindingTypes.SETUP_CONST */) ||
checkType("setup-reactive-const" /* BindingTypes.SETUP_REACTIVE_CONST */);
if (fromConst) {
return fromConst;
}
const fromMaybeRef = checkType("setup-let" /* BindingTypes.SETUP_LET */) ||
checkType("setup-ref" /* BindingTypes.SETUP_REF */) ||
checkType("setup-maybe-ref" /* BindingTypes.SETUP_MAYBE_REF */);
if (fromMaybeRef) {
return fromMaybeRef;
}
}
// hoist static sub-trees out
function genStatic(el, state) {
el.staticProcessed = true;
// Some elements (templates) need to behave differently inside of a v-pre
// node. All pre nodes are static roots, so we can use this as a location to
// wrap a state change and reset it upon exiting the pre node.
const originalPreState = state.pre;
if (el.pre) {
state.pre = el.pre;
}
state.staticRenderFns.push(`with(this){return ${genElement(el, state)}}`);
state.pre = originalPreState;
return `_m(${state.staticRenderFns.length - 1}${el.staticInFor ? ',true' : ''})`;
}
// v-once
function genOnce(el, state) {
el.onceProcessed = true;
if (el.if && !el.ifProcessed) {
return genIf(el, state);
}
else if (el.staticInFor) {
let key = '';
let parent = el.parent;
while (parent) {
if (parent.for) {
key = parent.key;
break;
}
parent = parent.parent;
}
if (!key) {
process.env.NODE_ENV !== 'production' &&
state.warn(`v-once can only be used inside v-for that is keyed. `, el.rawAttrsMap['v-once']);
return genElement(el, state);
}
return `_o(${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()';
}
const 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) {
const exp = el.for;
const alias = el.alias;
const iterator1 = el.iterator1 ? `,${el.iterator1}` : '';
const iterator2 = el.iterator2 ? `,${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 ${exp}">: component lists rendered with ` +
`v-for should have explicit keys. ` +
`See https://vuejs.org/guide/list.html#key for more info.`, el.rawAttrsMap['v-for'], true /* tip */);
}
el.forProcessed = true; // avoid recursion
return (`${altHelper || '_l'}((${exp}),` +
`function(${alias}${iterator1}${iterator2}){` +
`return ${(altGen || genElement)(el, state)}` +
'})');
}
function genData(el, state) {
let data = '{';
// directives first.
// directives may mutate the el's other properties before they are generated.
const dirs = genDirectives(el, state);
if (dirs)
data += dirs + ',';
// key
if (el.key) {
data += `key:${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 (let 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 += `${genHandlers(el.events, false)},`;
}
if (el.nativeEvents) {
data += `${genHandlers(el.nativeEvents, true)},`;
}
// slot target
// only for non-scoped slots
if (el.slotTarget && !el.slotScope) {
data += `slot:${el.slotTarget},`;
}
// scoped slots
if (el.scopedSlots) {
data += `${genScopedSlots(el, el.scopedSlots, state)},`;
}
// component v-model
if (el.model) {
data += `model:{value:${el.model.value},callback:${el.model.callback},expression:${el.model.expression}},`;
}
// inline-template
if (el.inlineTemplate) {
const inlineTemplate = genInlineTemplate(el, state);
if (inlineTemplate) {
data += `${inlineTemplate},`;
}
}
data = data.replace(/,$/, '') + '}';
// v-bind dynamic argument wrap
// v-bind with dynamic arguments must be applied using the same v-bind object
// merge helper so that class/style/mustUseProp attrs are handled correctly.
if (el.dynamicAttrs) {
data = `_b(${data},"${el.tag}",${genProps(el.dynamicAttrs)})`;
}
// 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) {
const dirs = el.directives;
if (!dirs)
return;
let res = 'directives:[';
let hasRuntime = false;
let i, l, dir, needRuntime;
for (i = 0, l = dirs.length; i < l; i++) {
dir = dirs[i];
needRuntime = true;
const 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:${dir.isDynamicArg ? dir.arg : `"${dir.arg}"`}` : ''}${dir.modifiers ? `,modifiers:${JSON.stringify(dir.modifiers)}` : ''}},`;
}
}
if (hasRuntime) {
return res.slice(0, -1) + ']';
}
}
function genInlineTemplate(el, state) {
const 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.', { start: el.start });
}
if (ast && ast.type === 1) {
const inlineRenderFns = generate$1(ast, state.options);
return `inlineTemplate:{render:function(){${inlineRenderFns.render}},staticRenderFns:[${inlineRenderFns.staticRenderFns
.map(code => `function(){${code}}`)
.join(',')}]}`;
}
}
function genScopedSlots(el, slots, state) {
// by default scoped slots are considered "stable", this allows child
// components with only scoped slots to skip forced updates from parent.
// but in some cases we have to bail-out of this optimization
// for example if the slot contains dynamic names, has v-if or v-for on them...
let needsForceUpdate = el.for ||
Object.keys(slots).some(key => {
const slot = slots[key];
return (slot.slotTargetDynamic || slot.if || slot.for || containsSlotChild(slot) // is passing down slot from parent which may be dynamic
);
});
// #9534: if a component with scoped slots is inside a conditional branch,
// it's possible for the same component to be reused but with different
// compiled slot content. To avoid that, we generate a unique key based on
// the generated code of all the slot contents.
let needsKey = !!el.if;
// OR when it is inside another scoped slot or v-for (the reactivity may be
// disconnected due to the intermediate scope variable)
// #9438, #9506
// TODO: this can be further optimized by properly analyzing in-scope bindings
// and skip force updating ones that do not actually use scope variables.
if (!needsForceUpdate) {
let parent = el.parent;
while (parent) {
if ((parent.slotScope && parent.slotScope !== emptySlotScopeToken) ||
parent.for) {
needsForceUpdate = true;
break;
}
if (parent.if) {
needsKey = true;
}
parent = parent.parent;
}
}
const generatedSlots = Object.keys(slots)
.map(key => genScopedSlot(slots[key], state))
.join(',');
return `scopedSlots:_u([${generatedSlots}]${needsForceUpdate ? `,null,true` : ``}${!needsForceUpdate && needsKey ? `,null,false,${hash(generatedSlots)}` : ``})`;
}
function hash(str) {
let hash = 5381;
let i = str.length;
while (i) {
hash = (hash * 33) ^ str.charCodeAt(--i);
}
return hash >>> 0;
}
function containsSlotChild(el) {
if (el.type === 1) {
if (el.tag === 'slot') {
return true;
}
return el.children.some(containsSlotChild);
}
return false;
}
function genScopedSlot(el, state) {
const isLegacySyntax = el.attrsMap['slot-scope'];
if (el.if && !el.ifProcessed && !isLegacySyntax) {
return genIf(el, state, genScopedSlot, `null`);
}
if (el.for && !el.forProcessed) {
return genFor(el, state, genScopedSlot);
}
const slotScope = el.slotScope === emptySlotScopeToken ? `` : String(el.slotScope);
const fn = `function(${slotScope}){` +
`return ${el.tag === 'template'
? el.if && isLegacySyntax
? `(${el.if})?${genChildren(el, state) || 'undefined'}:undefined`
: genChildren(el, state) || 'undefined'
: genElement(el, state)}}`;
// reverse proxy v-slot without scope on this.$slots
const reverseProxy = slotScope ? `` : `,proxy:true`;
return `{key:${el.slotTarget || `"default"`},fn:${fn}${reverseProxy}}`;
}
function genChildren(el, state, checkSkip, altGenElement, altGenNode) {
const children = el.children;
if (children.length) {
const el = children[0];
// optimize single v-for
if (children.length === 1 &&
el.for &&
el.tag !== 'template' &&
el.tag !== 'slot') {
const normalizationType = checkSkip
? state.maybeComponent(el)
? `,1`
: `,0`
: ``;
return `${(altGenElement || genElement)(el, state)}${normalizationType}`;
}
const normalizationType = checkSkip
? getNormalizationType(children, state.maybeComponent)
: 0;
const gen = altGenNode || genNode;
return `[${children.map(c => 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) {
let res = 0;
for (let i = 0; i < children.length; i++) {
const el = children[i];
if (el.type !== 1) {
continue;
}
if (needsNormalization(el) ||
(el.ifConditions &&
el.ifConditions.some(c => needsNormalization(c.block)))) {
res = 2;
break;
}
if (maybeComponent(el) ||
(el.ifConditions && el.ifConditions.some(c => 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);
}
else 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) {
const slotName = el.slotName || '"default"';
const children = genChildren(el, state);
let res = `_t(${slotName}${children ? `,function(){return ${children}}` : ''}`;
const attrs = el.attrs || el.dynamicAttrs
? genProps((el.attrs || []).concat(el.dynamicAttrs || []).map(attr => ({
// slot props are camelized
name: camelize(attr.name),
value: attr.value,
dynamic: attr.dynamic
})))
: null;
const bind = el.attrsMap['v-bind'];
if ((attrs || bind) && !children) {
res += `,null`;
}
if (attrs) {
res += `,${attrs}`;
}
if (bind) {
res += `${attrs ? '' : ',null'},${bind}`;
}
return res + ')';
}
// componentName is el.component, take it as argument to shun flow's pessimistic refinement
function genComponent(componentName, el, state) {
const children = el.inlineTemplate ? null : genChildren(el, state, true);
return `_c(${componentName},${genData(el, state)}${children ? `,${children}` : ''})`;
}
function genProps(props) {
let staticProps = ``;
let dynamicProps = ``;
for (let i = 0; i < props.length; i++) {
const prop = props[i];
const value = transformSpecialNewlines(prop.value);
if (prop.dynamic) {
dynamicProps += `${prop.name},${value},`;
}
else {
staticProps += `"${prop.name}":${value},`;
}
}
staticProps = `{${staticProps.slice(0, -1)}}`;
if (dynamicProps) {
return `_d(${staticProps},[${dynamicProps.slice(0, -1)}])`;
}
else {
return staticProps;
}
}
// #3895, #4268
function transformSpecialNewlines(text) {
return text.replace(/\u2028/g, '\\u2028').replace(/\u2029/g, '\\u2029');
}
// these keywords should not appear inside expressions, but operators like
// typeof, instanceof and in are allowed
const prohibitedKeywordRE = new RegExp('\\b' +
('do,if,for,let,new,try,var,case,else,with,await,break,catch,class,const,' +
'super,throw,while,yield,delete,export,import,return,switch,default,' +
'extends,finally,continue,debugger,function,arguments')
.split(',')
.join('\\b|\\b') +
'\\b');
// these unary operators should not be used as property/method names
const unaryOperatorsRE = new RegExp('\\b' +
'delete,typeof,void'.split(',').join('\\s*\\([^\\)]*\\)|\\b') +
'\\s*\\([^\\)]*\\)');
// strip strings in expressions
const stripStringRE = /'(?:[^'\\]|\\.)*'|"(?:[^"\\]|\\.)*"|`(?:[^`\\]|\\.)*\$\{|\}(?:[^`\\]|\\.)*`|`(?:[^`\\]|\\.)*`/g;
// detect problematic expressions in a template
function detectErrors(ast, warn) {
if (ast) {
checkNode(ast, warn);
}
}
function checkNode(node, warn) {
if (node.type === 1) {
for (const name in node.attrsMap) {
if (dirRE.test(name)) {
const value = node.attrsMap[name];
if (value) {
const range = node.rawAttrsMap[name];
if (name === 'v-for') {
checkFor(node, `v-for="${value}"`, warn, range);
}
else if (name === 'v-slot' || name[0] === '#') {
checkFunctionParameterExpression(value, `${name}="${value}"`, warn, range);
}
else if (onRE.test(name)) {
checkEvent(value, `${name}="${value}"`, warn, range);
}
else {
checkExpression(value, `${name}="${value}"`, warn, range);
}
}
}
}
if (node.children) {
for (let i = 0; i < node.children.length; i++) {
checkNode(node.children[i], warn);
}
}
}
else if (node.type === 2) {
checkExpression(node.expression, node.text, warn, node);
}
}
function checkEvent(exp, text, warn, range) {
const stripped = exp.replace(stripStringRE, '');
const keywordMatch = stripped.match(unaryOperatorsRE);
if (keywordMatch && stripped.charAt(keywordMatch.index - 1) !== '$') {
warn(`avoid using JavaScript unary operator as property name: ` +
`"${keywordMatch[0]}" in expression ${text.trim()}`, range);
}
checkExpression(exp, text, warn, range);
}
function checkFor(node, text, warn, range) {
checkExpression(node.for || '', text, warn, range);
checkIdentifier(node.alias, 'v-for alias', text, warn, range);
checkIdentifier(node.iterator1, 'v-for iterator', text, warn, range);
checkIdentifier(node.iterator2, 'v-for iterator', text, warn, range);
}
function checkIdentifier(ident, type, text, warn, range) {
if (typeof ident === 'string') {
try {
new Function(`var ${ident}=_`);
}
catch (e) {
warn(`invalid ${type} "${ident}" in expression: ${text.trim()}`, range);
}
}
}
function checkExpression(exp, text, warn, range) {
try {
new Function(`return ${exp}`);
}
catch (e) {
const keywordMatch = exp
.replace(stripStringRE, '')
.match(prohibitedKeywordRE);
if (keywordMatch) {
warn(`avoid using JavaScript keyword as property name: ` +
`"${keywordMatch[0]}"\n Raw expression: ${text.trim()}`, range);
}
else {
warn(`invalid expression: ${e.message} in\n\n` +
` ${exp}\n\n` +
` Raw expression: ${text.trim()}\n`, range);
}
}
}
function checkFunctionParameterExpression(exp, text, warn, range) {
try {
new Function(exp, '');
}
catch (e) {
warn(`invalid function parameter expression: ${e.message} in\n\n` +
` ${exp}\n\n` +
` Raw expression: ${text.trim()}\n`, range);
}
}
const range = 2;
function generateCodeFrame(source, start = 0, end = source.length) {
const lines = source.split(/\r?\n/);
let count = 0;
const res = [];
for (let i = 0; i < lines.length; i++) {
count += lines[i].length + 1;
if (count >= start) {
for (let j = i - range; j <= i + range || end > count; j++) {
if (j < 0 || j >= lines.length)
continue;
res.push(`${j + 1}${repeat(` `, 3 - String(j + 1).length)}| ${lines[j]}`);
const lineLength = lines[j].length;
if (j === i) {
// push underline
const pad = start - (count - lineLength) + 1;
const length = end > count ? lineLength - pad : end - start;
res.push(` | ` + repeat(` `, pad) + repeat(`^`, length));
}
else if (j > i) {
if (end > count) {
const length = Math.min(end - count, lineLength);
res.push(` | ` + repeat(`^`, length));
}
count += lineLength + 1;
}
}
break;
}
}
return res.join('\n');
}
function repeat(str, n) {
let result = '';
if (n > 0) {
// eslint-disable-next-line no-constant-condition
while (true) {
// eslint-disable-line
if (n & 1)
result += str;
n >>>= 1;
if (n <= 0)
break;
str += str;
}
}
return result;
}
function createFunction(code, errors) {
try {
return new Function(code);
}
catch (err) {
errors.push({ err, code });
return noop;
}
}
function createCompileToFunctionFn(compile) {
const cache = Object.create(null);
return function compileToFunctions(template, options, vm) {
options = extend({}, options);
const warn = options.warn || warn$2;
delete options.warn;
/* istanbul ignore if */
if (process.env.NODE_ENV !== 'production') {
// detect possible CSP restriction
try {
new Function('return 1');
}
catch (e) {
if (e.toString().match(/unsafe-eval|CSP/)) {
warn('It seems you are using the standalone build of Vue.js in an ' +
'environment with Content Security Policy that prohibits unsafe-eval. ' +
'The template compiler cannot work in this environment. Consider ' +
'relaxing the policy to allow unsafe-eval or pre-compiling your ' +
'templates into render functions.');
}
}
}
// check cache
const key = options.delimiters
? String(options.delimiters) + template
: template;
if (cache[key]) {
return cache[key];
}
// compile
const compiled = compile(template, options);
// check compilation errors/tips
if (process.env.NODE_ENV !== 'production') {
if (compiled.errors && compiled.errors.length) {
if (options.outputSourceRange) {
compiled.errors.forEach(e => {
warn(`Error compiling template:\n\n${e.msg}\n\n` +
generateCodeFrame(template, e.start, e.end), vm);
});
}
else {
warn(`Error compiling template:\n\n${template}\n\n` +
compiled.errors.map(e => `- ${e}`).join('\n') +
'\n', vm);
}
}
if (compiled.tips && compiled.tips.length) {
if (options.outputSourceRange) {
compiled.tips.forEach(e => tip(e.msg, vm));
}
else {
compiled.tips.forEach(msg => tip(msg, vm));
}
}
}
// turn code into functions
const res = {};
const fnGenErrors = [];
res.render = createFunction(compiled.render, fnGenErrors);
res.staticRenderFns = compiled.staticRenderFns.map(code => {
return createFunction(code, fnGenErrors);
});
// check function generation errors.
// this should only happen if there is a bug in the compiler itself.
// mostly for codegen development use
/* istanbul ignore if */
if (process.env.NODE_ENV !== 'production') {
if ((!compiled.errors || !compiled.errors.length) && fnGenErrors.length) {
warn(`Failed to generate render function:\n\n` +
fnGenErrors
.map(({ err, code }) => `${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) {
const finalOptions = Object.create(baseOptions);
const errors = [];
const tips = [];
let warn = (msg, range, tip) => {
(tip ? tips : errors).push(msg);
};
if (options) {
if (process.env.NODE_ENV !== 'production' && options.outputSourceRange) {
// $flow-disable-line
const leadingSpaceLength = template.match(/^\s*/)[0].length;
warn = (msg, range, tip) => {
const data = typeof msg === 'string' ? { msg } : msg;
if (range) {
if (range.start != null) {
data.start = range.start + leadingSpaceLength;
}
if (range.end != null) {
data.end = range.end + leadingSpaceLength;
}
}
(tip ? tips : errors).push(data);
};
}
// 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 (const key in options) {
if (key !== 'modules' && key !== 'directives') {
finalOptions[key] = options[key];
}
}
}
finalOptions.warn = warn;
const compiled = baseCompile(template.trim(), finalOptions);
if (process.env.NODE_ENV !== 'production') {
detectErrors(compiled.ast, warn);
}
compiled.errors = errors;
compiled.tips = tips;
return compiled;
}
return {
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.
const createCompiler$1 = createCompilerCreator(function baseCompile(template, options) {
const ast = parse(template.trim(), options);
if (options.optimize !== false) {
optimize$1(ast, options);
}
const code = generate$1(ast, options);
return {
ast,
render: code.render,
staticRenderFns: code.staticRenderFns
};
});
const { compile: compile$1, compileToFunctions: compileToFunctions$1 } = createCompiler$1(baseOptions);
const isAttr = makeMap('accept,accept-charset,accesskey,action,align,alt,async,autocomplete,' +
'autofocus,autoplay,autosave,bgcolor,border,buffered,challenge,charset,' +
'checked,cite,class,code,codebase,color,cols,colspan,content,' +
'contenteditable,contextmenu,controls,coords,data,datetime,default,' +
'defer,dir,dirname,disabled,download,draggable,dropzone,enctype,for,' +
'form,formaction,headers,height,hidden,high,href,hreflang,http-equiv,' +
'icon,id,ismap,itemprop,keytype,kind,label,lang,language,list,loop,low,' +
'manifest,max,maxlength,media,method,GET,POST,min,multiple,email,file,' +
'muted,name,novalidate,open,optimum,pattern,ping,placeholder,poster,' +
'preload,radiogroup,readonly,rel,required,reversed,rows,rowspan,sandbox,' +
'scope,scoped,seamless,selected,shape,size,type,text,password,sizes,span,' +
'spellcheck,src,srcdoc,srclang,srcset,start,step,style,summary,tabindex,' +
'target,title,usemap,value,width,wrap');
/* istanbul ignore next */
const isRenderableAttr = (name) => {
return (isAttr(name) || name.indexOf('data-') === 0 || name.indexOf('aria-') === 0);
};
const propsToAttrMap = {
acceptCharset: 'accept-charset',
className: 'class',
htmlFor: 'for',
httpEquiv: 'http-equiv'
};
const ESC = {
'<': '<',
'>': '>',
'"': '"',
'&': '&'
};
function escape(s) {
return s.replace(/[<>"&]/g, escapeChar);
}
function escapeChar(a) {
return ESC[a] || a;
}
const plainStringRE = /^"(?:[^"\\]|\\.)*"$|^'(?:[^'\\]|\\.)*'$/;
// let the model AST transform translate v-model into appropriate
// props bindings
function applyModelTransform(el, state) {
if (el.directives) {
for (let i = 0; i < el.directives.length; i++) {
const dir = el.directives[i];
if (dir.name === 'model') {
state.directives.model(el, dir, state.warn);
// remove value for textarea as its converted to text
if (el.tag === 'textarea' && el.props) {
el.props = el.props.filter(p => p.name !== 'value');
}
break;
}
}
}
}
function genAttrSegments(attrs) {
return attrs.map(({ name, value }) => genAttrSegment(name, value));
}
function genDOMPropSegments(props, attrs) {
const segments = [];
props.forEach(({ name, value }) => {
name = propsToAttrMap[name] || name.toLowerCase();
if (isRenderableAttr(name) &&
!(attrs && attrs.some(a => a.name === name))) {
segments.push(genAttrSegment(name, value));
}
});
return segments;
}
function genAttrSegment(name, value) {
if (plainStringRE.test(value)) {
// force double quote
value = value.replace(/^'|'$/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="${JSON.parse(staticClass)}"` }];
}
else {
return [
{
type: EXPRESSION,
value: `_ssrClass(${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
const optimizability = {
FALSE: 0,
FULL: 1,
SELF: 2,
CHILDREN: 3,
PARTIAL: 4 // self un-optimizable with some un-optimizable children
};
let isPlatformReservedTag;
function optimize(root, options) {
if (!root)
return;
isPlatformReservedTag = 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
const selfUnoptimizable = isRoot || hasCustomDirective(node);
const check = child => {
if (child.ssrOptimizability !== optimizability.FULL) {
node.ssrOptimizability = selfUnoptimizable
? optimizability.PARTIAL
: optimizability.SELF;
}
};
if (selfUnoptimizable) {
node.ssrOptimizability = optimizability.CHILDREN;
}
if (node.type === 1) {
for (let i = 0, l = node.children.length; i < l; i++) {
const child = node.children[i];
walk(child);
check(child);
}
if (node.ifConditions) {
for (let i = 1, l = node.ifConditions.length; i < l; i++) {
const block = node.ifConditions[i].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) {
const children = el.children;
const optimizedChildren = [];
let currentOptimizableGroup = [];
const pushGroup = () => {
if (currentOptimizableGroup.length) {
optimizedChildren.push({
type: 1,
parent: el,
tag: 'template',
attrsList: [],
attrsMap: {},
rawAttrsMap: {},
children: currentOptimizableGroup,
ssrOptimizability: optimizability.FULL
});
}
currentOptimizableGroup = [];
};
for (let i = 0; i < children.length; i++) {
const 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(node.tag) || // custom component
!!node.component || // "is" component
isSelectWithModel(node) // <select v-model> requires runtime inspection
);
}
const isBuiltInDir = makeMap('text,html,show,on,bind,model,pre,cloak,once');
function hasCustomDirective(node) {
return (node.type === 1 &&
node.directives &&
node.directives.some(d => !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(d => d.name === 'model'));
}
// The SSR codegen is essentially extending the default codegen to handle
// segment types
const RAW = 0;
const INTERPOLATION = 1;
const EXPRESSION = 2;
function generate(ast, options) {
const state = new CodegenState(options);
const code = ast ? genSSRElement(ast, state) : '_c("div")';
return {
render: `with(this){return ${code}}`,
staticRenderFns: state.staticRenderFns
};
}
function genSSRElement(el, state) {
if (el.for && !el.forProcessed) {
return genFor(el, state, genSSRElement);
}
else if (el.if && !el.ifProcessed) {
return genIf(el, state, genSSRElement);
}
else if (el.tag === 'template' && !el.slotTarget) {
return el.ssrOptimizability === optimizability.FULL
? genChildrenAsStringNode(el, state)
: genSSRChildren(el, state) || 'void 0';
}
switch (el.ssrOptimizability) {
case optimizability.FULL:
// stringify whole tree
return genStringElement(el, state);
case optimizability.SELF:
// stringify self and check children
return genStringElementWithChildren(el, state);
case optimizability.CHILDREN:
// generate self as VNode and stringify children
return genNormalElement(el, state, true);
case optimizability.PARTIAL:
// generate self as VNode and check children
return genNormalElement(el, state, false);
default:
// bail whole tree
return genElement(el, state);
}
}
function genNormalElement(el, state, stringifyChildren) {
const data = el.plain ? undefined : genData(el, state);
const children = stringifyChildren
? `[${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(${elementToString(el, state)})`;
}
function genStringElementWithChildren(el, state) {
const children = genSSRChildren(el, state, true);
return `_ssrNode(${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);
}
const openSegments = elementToOpenTagSegments(el, state);
const childrenSegments = childrenToSegments(el, state);
const { isUnaryTag } = state.options;
const close = isUnaryTag && isUnaryTag(el.tag)
? []
: [{ type: RAW, value: `</${el.tag}>` }];
return openSegments.concat(childrenSegments, close);
}
function elementToOpenTagSegments(el, state) {
applyModelTransform(el, state);
let binding;
const segments = [{ type: RAW, value: `<${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: ` ${state.options.scopeId}` });
}
segments.push({ type: RAW, value: `>` });
return segments;
}
function childrenToSegments(el, state) {
let binding;
if ((binding = el.attrsMap['v-html'])) {
return [{ type: EXPRESSION, value: `_s(${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) {
const segments = [];
for (let i = 0; i < children.length; i++) {
const 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) {
let text = escape(c.text);
if (c.isComment) {
text = '<!--' + text + '-->';
}
segments.push({ type: RAW, value: text });
}
}
return segments;
}
function flattenSegments(segments) {
const mergedSegments = [];
let textBuffer = '';
const pushBuffer = () => {
if (textBuffer) {
mergedSegments.push(JSON.stringify(textBuffer));
textBuffer = '';
}
};
for (let i = 0; i < segments.length; i++) {
const 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('+');
}
const createCompiler = createCompilerCreator(function baseCompile(template, options) {
const ast = parse(template.trim(), options);
optimize(ast, options);
const code = generate(ast, options);
return {
ast,
render: code.render,
staticRenderFns: code.staticRenderFns
};
});
const { compile, compileToFunctions } = createCompiler(baseOptions);
exports.compile = compile$1;
exports.compileToFunctions = compileToFunctions$1;
exports.generateCodeFrame = generateCodeFrame;
exports.parseComponent = parseComponent;
exports.ssrCompile = compile;
exports.ssrCompileToFunctions = compileToFunctions;