You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
13408 lines
520 KiB
13408 lines
520 KiB
var Vue = (function (exports) {
|
|
'use strict';
|
|
|
|
/**
|
|
* Make a map and return a function for checking if a key
|
|
* is in that map.
|
|
* IMPORTANT: all calls of this function must be prefixed with
|
|
* \/\*#\_\_PURE\_\_\*\/
|
|
* So that rollup can tree-shake them if necessary.
|
|
*/
|
|
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];
|
|
}
|
|
|
|
// Patch flags are optimization hints generated by the compiler.
|
|
// when a block with dynamicChildren is encountered during diff, the algorithm
|
|
// enters "optimized mode". In this mode, we know that the vdom is produced by
|
|
// a render function generated by the compiler, so the algorithm only needs to
|
|
// handle updates explicitly marked by these patch flags.
|
|
// dev only flag -> name mapping
|
|
const PatchFlagNames = {
|
|
[1 /* TEXT */]: `TEXT`,
|
|
[2 /* CLASS */]: `CLASS`,
|
|
[4 /* STYLE */]: `STYLE`,
|
|
[8 /* PROPS */]: `PROPS`,
|
|
[16 /* FULL_PROPS */]: `FULL_PROPS`,
|
|
[32 /* HYDRATE_EVENTS */]: `HYDRATE_EVENTS`,
|
|
[64 /* STABLE_FRAGMENT */]: `STABLE_FRAGMENT`,
|
|
[128 /* KEYED_FRAGMENT */]: `KEYED_FRAGMENT`,
|
|
[256 /* UNKEYED_FRAGMENT */]: `UNKEYED_FRAGMENT`,
|
|
[1024 /* DYNAMIC_SLOTS */]: `DYNAMIC_SLOTS`,
|
|
[512 /* NEED_PATCH */]: `NEED_PATCH`,
|
|
[-1 /* HOISTED */]: `HOISTED`,
|
|
[-2 /* BAIL */]: `BAIL`
|
|
};
|
|
|
|
const GLOBALS_WHITE_LISTED = 'Infinity,undefined,NaN,isFinite,isNaN,parseFloat,parseInt,decodeURI,' +
|
|
'decodeURIComponent,encodeURI,encodeURIComponent,Math,Number,Date,Array,' +
|
|
'Object,Boolean,String,RegExp,Map,Set,JSON,Intl';
|
|
const isGloballyWhitelisted = /*#__PURE__*/ makeMap(GLOBALS_WHITE_LISTED);
|
|
|
|
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;
|
|
const line = j + 1;
|
|
res.push(`${line}${' '.repeat(Math.max(3 - String(line).length, 0))}| ${lines[j]}`);
|
|
const lineLength = lines[j].length;
|
|
if (j === i) {
|
|
// push underline
|
|
const pad = start - (count - lineLength) + 1;
|
|
const length = Math.max(1, end > count ? lineLength - pad : end - start);
|
|
res.push(` | ` + ' '.repeat(pad) + '^'.repeat(length));
|
|
}
|
|
else if (j > i) {
|
|
if (end > count) {
|
|
const length = Math.max(Math.min(end - count, lineLength), 1);
|
|
res.push(` | ` + '^'.repeat(length));
|
|
}
|
|
count += lineLength + 1;
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
return res.join('\n');
|
|
}
|
|
|
|
/**
|
|
* On the client we only need to offer special cases for boolean attributes that
|
|
* have different names from their corresponding dom properties:
|
|
* - itemscope -> N/A
|
|
* - allowfullscreen -> allowFullscreen
|
|
* - formnovalidate -> formNoValidate
|
|
* - ismap -> isMap
|
|
* - nomodule -> noModule
|
|
* - novalidate -> noValidate
|
|
* - readonly -> readOnly
|
|
*/
|
|
const specialBooleanAttrs = `itemscope,allowfullscreen,formnovalidate,ismap,nomodule,novalidate,readonly`;
|
|
const isSpecialBooleanAttr = /*#__PURE__*/ makeMap(specialBooleanAttrs);
|
|
|
|
function normalizeStyle(value) {
|
|
if (isArray(value)) {
|
|
const res = {};
|
|
for (let i = 0; i < value.length; i++) {
|
|
const item = value[i];
|
|
const normalized = normalizeStyle(isString(item) ? parseStringStyle(item) : item);
|
|
if (normalized) {
|
|
for (const key in normalized) {
|
|
res[key] = normalized[key];
|
|
}
|
|
}
|
|
}
|
|
return res;
|
|
}
|
|
else if (isObject(value)) {
|
|
return value;
|
|
}
|
|
}
|
|
const listDelimiterRE = /;(?![^(]*\))/g;
|
|
const propertyDelimiterRE = /:(.+)/;
|
|
function parseStringStyle(cssText) {
|
|
const ret = {};
|
|
cssText.split(listDelimiterRE).forEach(item => {
|
|
if (item) {
|
|
const tmp = item.split(propertyDelimiterRE);
|
|
tmp.length > 1 && (ret[tmp[0].trim()] = tmp[1].trim());
|
|
}
|
|
});
|
|
return ret;
|
|
}
|
|
function normalizeClass(value) {
|
|
let res = '';
|
|
if (isString(value)) {
|
|
res = value;
|
|
}
|
|
else if (isArray(value)) {
|
|
for (let i = 0; i < value.length; i++) {
|
|
res += normalizeClass(value[i]) + ' ';
|
|
}
|
|
}
|
|
else if (isObject(value)) {
|
|
for (const name in value) {
|
|
if (value[name]) {
|
|
res += name + ' ';
|
|
}
|
|
}
|
|
}
|
|
return res.trim();
|
|
}
|
|
|
|
// These tag configs are shared between compiler-dom and runtime-dom, so they
|
|
// https://developer.mozilla.org/en-US/docs/Web/HTML/Element
|
|
const HTML_TAGS = '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,' +
|
|
'summary,template,blockquote,iframe,tfoot';
|
|
// https://developer.mozilla.org/en-US/docs/Web/SVG/Element
|
|
const SVG_TAGS = 'svg,animate,animateMotion,animateTransform,circle,clipPath,color-profile,' +
|
|
'defs,desc,discard,ellipse,feBlend,feColorMatrix,feComponentTransfer,' +
|
|
'feComposite,feConvolveMatrix,feDiffuseLighting,feDisplacementMap,' +
|
|
'feDistanceLight,feDropShadow,feFlood,feFuncA,feFuncB,feFuncG,feFuncR,' +
|
|
'feGaussianBlur,feImage,feMerge,feMergeNode,feMorphology,feOffset,' +
|
|
'fePointLight,feSpecularLighting,feSpotLight,feTile,feTurbulence,filter,' +
|
|
'foreignObject,g,hatch,hatchpath,image,line,linearGradient,marker,mask,' +
|
|
'mesh,meshgradient,meshpatch,meshrow,metadata,mpath,path,pattern,' +
|
|
'polygon,polyline,radialGradient,rect,set,solidcolor,stop,switch,symbol,' +
|
|
'text,textPath,title,tspan,unknown,use,view';
|
|
const VOID_TAGS = 'area,base,br,col,embed,hr,img,input,link,meta,param,source,track,wbr';
|
|
const isHTMLTag = /*#__PURE__*/ makeMap(HTML_TAGS);
|
|
const isSVGTag = /*#__PURE__*/ makeMap(SVG_TAGS);
|
|
const isVoidTag = /*#__PURE__*/ makeMap(VOID_TAGS);
|
|
|
|
function looseCompareArrays(a, b) {
|
|
if (a.length !== b.length)
|
|
return false;
|
|
let equal = true;
|
|
for (let i = 0; equal && i < a.length; i++) {
|
|
equal = looseEqual(a[i], b[i]);
|
|
}
|
|
return equal;
|
|
}
|
|
function looseEqual(a, b) {
|
|
if (a === b)
|
|
return true;
|
|
let aValidType = isDate(a);
|
|
let bValidType = isDate(b);
|
|
if (aValidType || bValidType) {
|
|
return aValidType && bValidType ? a.getTime() === b.getTime() : false;
|
|
}
|
|
aValidType = isArray(a);
|
|
bValidType = isArray(b);
|
|
if (aValidType || bValidType) {
|
|
return aValidType && bValidType ? looseCompareArrays(a, b) : false;
|
|
}
|
|
aValidType = isObject(a);
|
|
bValidType = isObject(b);
|
|
if (aValidType || bValidType) {
|
|
/* istanbul ignore if: this if will probably never be called */
|
|
if (!aValidType || !bValidType) {
|
|
return false;
|
|
}
|
|
const aKeysCount = Object.keys(a).length;
|
|
const bKeysCount = Object.keys(b).length;
|
|
if (aKeysCount !== bKeysCount) {
|
|
return false;
|
|
}
|
|
for (const key in a) {
|
|
const aHasKey = a.hasOwnProperty(key);
|
|
const bHasKey = b.hasOwnProperty(key);
|
|
if ((aHasKey && !bHasKey) ||
|
|
(!aHasKey && bHasKey) ||
|
|
!looseEqual(a[key], b[key])) {
|
|
return false;
|
|
}
|
|
}
|
|
}
|
|
return String(a) === String(b);
|
|
}
|
|
function looseIndexOf(arr, val) {
|
|
return arr.findIndex(item => looseEqual(item, val));
|
|
}
|
|
|
|
/**
|
|
* For converting {{ interpolation }} values to displayed strings.
|
|
* @private
|
|
*/
|
|
const toDisplayString = (val) => {
|
|
return val == null
|
|
? ''
|
|
: isObject(val)
|
|
? JSON.stringify(val, replacer, 2)
|
|
: String(val);
|
|
};
|
|
const replacer = (_key, val) => {
|
|
if (isMap(val)) {
|
|
return {
|
|
[`Map(${val.size})`]: [...val.entries()].reduce((entries, [key, val]) => {
|
|
entries[`${key} =>`] = val;
|
|
return entries;
|
|
}, {})
|
|
};
|
|
}
|
|
else if (isSet(val)) {
|
|
return {
|
|
[`Set(${val.size})`]: [...val.values()]
|
|
};
|
|
}
|
|
else if (isObject(val) && !isArray(val) && !isPlainObject(val)) {
|
|
return String(val);
|
|
}
|
|
return val;
|
|
};
|
|
|
|
const EMPTY_OBJ = Object.freeze({})
|
|
;
|
|
const EMPTY_ARR = Object.freeze([]) ;
|
|
const NOOP = () => { };
|
|
/**
|
|
* Always return false.
|
|
*/
|
|
const NO = () => false;
|
|
const onRE = /^on[^a-z]/;
|
|
const isOn = (key) => onRE.test(key);
|
|
const isModelListener = (key) => key.startsWith('onUpdate:');
|
|
const extend = Object.assign;
|
|
const remove = (arr, el) => {
|
|
const i = arr.indexOf(el);
|
|
if (i > -1) {
|
|
arr.splice(i, 1);
|
|
}
|
|
};
|
|
const hasOwnProperty = Object.prototype.hasOwnProperty;
|
|
const hasOwn = (val, key) => hasOwnProperty.call(val, key);
|
|
const isArray = Array.isArray;
|
|
const isMap = (val) => toTypeString(val) === '[object Map]';
|
|
const isSet = (val) => toTypeString(val) === '[object Set]';
|
|
const isDate = (val) => val instanceof Date;
|
|
const isFunction = (val) => typeof val === 'function';
|
|
const isString = (val) => typeof val === 'string';
|
|
const isSymbol = (val) => typeof val === 'symbol';
|
|
const isObject = (val) => val !== null && typeof val === 'object';
|
|
const isPromise = (val) => {
|
|
return isObject(val) && isFunction(val.then) && isFunction(val.catch);
|
|
};
|
|
const objectToString = Object.prototype.toString;
|
|
const toTypeString = (value) => objectToString.call(value);
|
|
const toRawType = (value) => {
|
|
// extract "RawType" from strings like "[object RawType]"
|
|
return toTypeString(value).slice(8, -1);
|
|
};
|
|
const isPlainObject = (val) => toTypeString(val) === '[object Object]';
|
|
const isIntegerKey = (key) => isString(key) &&
|
|
key !== 'NaN' &&
|
|
key[0] !== '-' &&
|
|
'' + parseInt(key, 10) === key;
|
|
const isReservedProp = /*#__PURE__*/ makeMap(
|
|
// the leading comma is intentional so empty string "" is also included
|
|
',key,ref,' +
|
|
'onVnodeBeforeMount,onVnodeMounted,' +
|
|
'onVnodeBeforeUpdate,onVnodeUpdated,' +
|
|
'onVnodeBeforeUnmount,onVnodeUnmounted');
|
|
const cacheStringFunction = (fn) => {
|
|
const cache = Object.create(null);
|
|
return ((str) => {
|
|
const hit = cache[str];
|
|
return hit || (cache[str] = fn(str));
|
|
});
|
|
};
|
|
const camelizeRE = /-(\w)/g;
|
|
/**
|
|
* @private
|
|
*/
|
|
const camelize = cacheStringFunction((str) => {
|
|
return str.replace(camelizeRE, (_, c) => (c ? c.toUpperCase() : ''));
|
|
});
|
|
const hyphenateRE = /\B([A-Z])/g;
|
|
/**
|
|
* @private
|
|
*/
|
|
const hyphenate = cacheStringFunction((str) => str.replace(hyphenateRE, '-$1').toLowerCase());
|
|
/**
|
|
* @private
|
|
*/
|
|
const capitalize = cacheStringFunction((str) => str.charAt(0).toUpperCase() + str.slice(1));
|
|
/**
|
|
* @private
|
|
*/
|
|
const toHandlerKey = cacheStringFunction((str) => (str ? `on${capitalize(str)}` : ``));
|
|
// compare whether a value has changed, accounting for NaN.
|
|
const hasChanged = (value, oldValue) => value !== oldValue && (value === value || oldValue === oldValue);
|
|
const invokeArrayFns = (fns, arg) => {
|
|
for (let i = 0; i < fns.length; i++) {
|
|
fns[i](arg);
|
|
}
|
|
};
|
|
const def = (obj, key, value) => {
|
|
Object.defineProperty(obj, key, {
|
|
configurable: true,
|
|
enumerable: false,
|
|
value
|
|
});
|
|
};
|
|
const toNumber = (val) => {
|
|
const n = parseFloat(val);
|
|
return isNaN(n) ? val : n;
|
|
};
|
|
let _globalThis;
|
|
const getGlobalThis = () => {
|
|
return (_globalThis ||
|
|
(_globalThis =
|
|
typeof globalThis !== 'undefined'
|
|
? globalThis
|
|
: typeof self !== 'undefined'
|
|
? self
|
|
: typeof window !== 'undefined'
|
|
? window
|
|
: typeof global !== 'undefined'
|
|
? global
|
|
: {}));
|
|
};
|
|
|
|
const targetMap = new WeakMap();
|
|
const effectStack = [];
|
|
let activeEffect;
|
|
const ITERATE_KEY = Symbol( 'iterate' );
|
|
const MAP_KEY_ITERATE_KEY = Symbol( 'Map key iterate' );
|
|
function isEffect(fn) {
|
|
return fn && fn._isEffect === true;
|
|
}
|
|
function effect(fn, options = EMPTY_OBJ) {
|
|
if (isEffect(fn)) {
|
|
fn = fn.raw;
|
|
}
|
|
const effect = createReactiveEffect(fn, options);
|
|
if (!options.lazy) {
|
|
effect();
|
|
}
|
|
return effect;
|
|
}
|
|
function stop(effect) {
|
|
if (effect.active) {
|
|
cleanup(effect);
|
|
if (effect.options.onStop) {
|
|
effect.options.onStop();
|
|
}
|
|
effect.active = false;
|
|
}
|
|
}
|
|
let uid = 0;
|
|
function createReactiveEffect(fn, options) {
|
|
const effect = function reactiveEffect() {
|
|
if (!effect.active) {
|
|
return options.scheduler ? undefined : fn();
|
|
}
|
|
if (!effectStack.includes(effect)) {
|
|
cleanup(effect);
|
|
try {
|
|
enableTracking();
|
|
effectStack.push(effect);
|
|
activeEffect = effect;
|
|
return fn();
|
|
}
|
|
finally {
|
|
effectStack.pop();
|
|
resetTracking();
|
|
activeEffect = effectStack[effectStack.length - 1];
|
|
}
|
|
}
|
|
};
|
|
effect.id = uid++;
|
|
effect.allowRecurse = !!options.allowRecurse;
|
|
effect._isEffect = true;
|
|
effect.active = true;
|
|
effect.raw = fn;
|
|
effect.deps = [];
|
|
effect.options = options;
|
|
return effect;
|
|
}
|
|
function cleanup(effect) {
|
|
const { deps } = effect;
|
|
if (deps.length) {
|
|
for (let i = 0; i < deps.length; i++) {
|
|
deps[i].delete(effect);
|
|
}
|
|
deps.length = 0;
|
|
}
|
|
}
|
|
let shouldTrack = true;
|
|
const trackStack = [];
|
|
function pauseTracking() {
|
|
trackStack.push(shouldTrack);
|
|
shouldTrack = false;
|
|
}
|
|
function enableTracking() {
|
|
trackStack.push(shouldTrack);
|
|
shouldTrack = true;
|
|
}
|
|
function resetTracking() {
|
|
const last = trackStack.pop();
|
|
shouldTrack = last === undefined ? true : last;
|
|
}
|
|
function track(target, type, key) {
|
|
if (!shouldTrack || activeEffect === undefined) {
|
|
return;
|
|
}
|
|
let depsMap = targetMap.get(target);
|
|
if (!depsMap) {
|
|
targetMap.set(target, (depsMap = new Map()));
|
|
}
|
|
let dep = depsMap.get(key);
|
|
if (!dep) {
|
|
depsMap.set(key, (dep = new Set()));
|
|
}
|
|
if (!dep.has(activeEffect)) {
|
|
dep.add(activeEffect);
|
|
activeEffect.deps.push(dep);
|
|
if ( activeEffect.options.onTrack) {
|
|
activeEffect.options.onTrack({
|
|
effect: activeEffect,
|
|
target,
|
|
type,
|
|
key
|
|
});
|
|
}
|
|
}
|
|
}
|
|
function trigger(target, type, key, newValue, oldValue, oldTarget) {
|
|
const depsMap = targetMap.get(target);
|
|
if (!depsMap) {
|
|
// never been tracked
|
|
return;
|
|
}
|
|
const effects = new Set();
|
|
const add = (effectsToAdd) => {
|
|
if (effectsToAdd) {
|
|
effectsToAdd.forEach(effect => {
|
|
if (effect !== activeEffect || effect.allowRecurse) {
|
|
effects.add(effect);
|
|
}
|
|
});
|
|
}
|
|
};
|
|
if (type === "clear" /* CLEAR */) {
|
|
// collection being cleared
|
|
// trigger all effects for target
|
|
depsMap.forEach(add);
|
|
}
|
|
else if (key === 'length' && isArray(target)) {
|
|
depsMap.forEach((dep, key) => {
|
|
if (key === 'length' || key >= newValue) {
|
|
add(dep);
|
|
}
|
|
});
|
|
}
|
|
else {
|
|
// schedule runs for SET | ADD | DELETE
|
|
if (key !== void 0) {
|
|
add(depsMap.get(key));
|
|
}
|
|
// also run for iteration key on ADD | DELETE | Map.SET
|
|
switch (type) {
|
|
case "add" /* ADD */:
|
|
if (!isArray(target)) {
|
|
add(depsMap.get(ITERATE_KEY));
|
|
if (isMap(target)) {
|
|
add(depsMap.get(MAP_KEY_ITERATE_KEY));
|
|
}
|
|
}
|
|
else if (isIntegerKey(key)) {
|
|
// new index added to array -> length changes
|
|
add(depsMap.get('length'));
|
|
}
|
|
break;
|
|
case "delete" /* DELETE */:
|
|
if (!isArray(target)) {
|
|
add(depsMap.get(ITERATE_KEY));
|
|
if (isMap(target)) {
|
|
add(depsMap.get(MAP_KEY_ITERATE_KEY));
|
|
}
|
|
}
|
|
break;
|
|
case "set" /* SET */:
|
|
if (isMap(target)) {
|
|
add(depsMap.get(ITERATE_KEY));
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
const run = (effect) => {
|
|
if ( effect.options.onTrigger) {
|
|
effect.options.onTrigger({
|
|
effect,
|
|
target,
|
|
key,
|
|
type,
|
|
newValue,
|
|
oldValue,
|
|
oldTarget
|
|
});
|
|
}
|
|
if (effect.options.scheduler) {
|
|
effect.options.scheduler(effect);
|
|
}
|
|
else {
|
|
effect();
|
|
}
|
|
};
|
|
effects.forEach(run);
|
|
}
|
|
|
|
const builtInSymbols = new Set(Object.getOwnPropertyNames(Symbol)
|
|
.map(key => Symbol[key])
|
|
.filter(isSymbol));
|
|
const get = /*#__PURE__*/ createGetter();
|
|
const shallowGet = /*#__PURE__*/ createGetter(false, true);
|
|
const readonlyGet = /*#__PURE__*/ createGetter(true);
|
|
const shallowReadonlyGet = /*#__PURE__*/ createGetter(true, true);
|
|
const arrayInstrumentations = {};
|
|
['includes', 'indexOf', 'lastIndexOf'].forEach(key => {
|
|
const method = Array.prototype[key];
|
|
arrayInstrumentations[key] = function (...args) {
|
|
const arr = toRaw(this);
|
|
for (let i = 0, l = this.length; i < l; i++) {
|
|
track(arr, "get" /* GET */, i + '');
|
|
}
|
|
// we run the method using the original args first (which may be reactive)
|
|
const res = method.apply(arr, args);
|
|
if (res === -1 || res === false) {
|
|
// if that didn't work, run it again using raw values.
|
|
return method.apply(arr, args.map(toRaw));
|
|
}
|
|
else {
|
|
return res;
|
|
}
|
|
};
|
|
});
|
|
['push', 'pop', 'shift', 'unshift', 'splice'].forEach(key => {
|
|
const method = Array.prototype[key];
|
|
arrayInstrumentations[key] = function (...args) {
|
|
pauseTracking();
|
|
const res = method.apply(this, args);
|
|
resetTracking();
|
|
return res;
|
|
};
|
|
});
|
|
function createGetter(isReadonly = false, shallow = false) {
|
|
return function get(target, key, receiver) {
|
|
if (key === "__v_isReactive" /* IS_REACTIVE */) {
|
|
return !isReadonly;
|
|
}
|
|
else if (key === "__v_isReadonly" /* IS_READONLY */) {
|
|
return isReadonly;
|
|
}
|
|
else if (key === "__v_raw" /* RAW */ &&
|
|
receiver === (isReadonly ? readonlyMap : reactiveMap).get(target)) {
|
|
return target;
|
|
}
|
|
const targetIsArray = isArray(target);
|
|
if (targetIsArray && hasOwn(arrayInstrumentations, key)) {
|
|
return Reflect.get(arrayInstrumentations, key, receiver);
|
|
}
|
|
const res = Reflect.get(target, key, receiver);
|
|
if (isSymbol(key)
|
|
? builtInSymbols.has(key)
|
|
: key === `__proto__` || key === `__v_isRef`) {
|
|
return res;
|
|
}
|
|
if (!isReadonly) {
|
|
track(target, "get" /* GET */, key);
|
|
}
|
|
if (shallow) {
|
|
return res;
|
|
}
|
|
if (isRef(res)) {
|
|
// ref unwrapping - does not apply for Array + integer key.
|
|
const shouldUnwrap = !targetIsArray || !isIntegerKey(key);
|
|
return shouldUnwrap ? res.value : res;
|
|
}
|
|
if (isObject(res)) {
|
|
// Convert returned value into a proxy as well. we do the isObject check
|
|
// here to avoid invalid value warning. Also need to lazy access readonly
|
|
// and reactive here to avoid circular dependency.
|
|
return isReadonly ? readonly(res) : reactive(res);
|
|
}
|
|
return res;
|
|
};
|
|
}
|
|
const set = /*#__PURE__*/ createSetter();
|
|
const shallowSet = /*#__PURE__*/ createSetter(true);
|
|
function createSetter(shallow = false) {
|
|
return function set(target, key, value, receiver) {
|
|
const oldValue = target[key];
|
|
if (!shallow) {
|
|
value = toRaw(value);
|
|
if (!isArray(target) && isRef(oldValue) && !isRef(value)) {
|
|
oldValue.value = value;
|
|
return true;
|
|
}
|
|
}
|
|
const hadKey = isArray(target) && isIntegerKey(key)
|
|
? Number(key) < target.length
|
|
: hasOwn(target, key);
|
|
const result = Reflect.set(target, key, value, receiver);
|
|
// don't trigger if target is something up in the prototype chain of original
|
|
if (target === toRaw(receiver)) {
|
|
if (!hadKey) {
|
|
trigger(target, "add" /* ADD */, key, value);
|
|
}
|
|
else if (hasChanged(value, oldValue)) {
|
|
trigger(target, "set" /* SET */, key, value, oldValue);
|
|
}
|
|
}
|
|
return result;
|
|
};
|
|
}
|
|
function deleteProperty(target, key) {
|
|
const hadKey = hasOwn(target, key);
|
|
const oldValue = target[key];
|
|
const result = Reflect.deleteProperty(target, key);
|
|
if (result && hadKey) {
|
|
trigger(target, "delete" /* DELETE */, key, undefined, oldValue);
|
|
}
|
|
return result;
|
|
}
|
|
function has(target, key) {
|
|
const result = Reflect.has(target, key);
|
|
if (!isSymbol(key) || !builtInSymbols.has(key)) {
|
|
track(target, "has" /* HAS */, key);
|
|
}
|
|
return result;
|
|
}
|
|
function ownKeys(target) {
|
|
track(target, "iterate" /* ITERATE */, isArray(target) ? 'length' : ITERATE_KEY);
|
|
return Reflect.ownKeys(target);
|
|
}
|
|
const mutableHandlers = {
|
|
get,
|
|
set,
|
|
deleteProperty,
|
|
has,
|
|
ownKeys
|
|
};
|
|
const readonlyHandlers = {
|
|
get: readonlyGet,
|
|
set(target, key) {
|
|
{
|
|
console.warn(`Set operation on key "${String(key)}" failed: target is readonly.`, target);
|
|
}
|
|
return true;
|
|
},
|
|
deleteProperty(target, key) {
|
|
{
|
|
console.warn(`Delete operation on key "${String(key)}" failed: target is readonly.`, target);
|
|
}
|
|
return true;
|
|
}
|
|
};
|
|
const shallowReactiveHandlers = extend({}, mutableHandlers, {
|
|
get: shallowGet,
|
|
set: shallowSet
|
|
});
|
|
// Props handlers are special in the sense that it should not unwrap top-level
|
|
// refs (in order to allow refs to be explicitly passed down), but should
|
|
// retain the reactivity of the normal readonly object.
|
|
const shallowReadonlyHandlers = extend({}, readonlyHandlers, {
|
|
get: shallowReadonlyGet
|
|
});
|
|
|
|
const toReactive = (value) => isObject(value) ? reactive(value) : value;
|
|
const toReadonly = (value) => isObject(value) ? readonly(value) : value;
|
|
const toShallow = (value) => value;
|
|
const getProto = (v) => Reflect.getPrototypeOf(v);
|
|
function get$1(target, key, isReadonly = false, isShallow = false) {
|
|
// #1772: readonly(reactive(Map)) should return readonly + reactive version
|
|
// of the value
|
|
target = target["__v_raw" /* RAW */];
|
|
const rawTarget = toRaw(target);
|
|
const rawKey = toRaw(key);
|
|
if (key !== rawKey) {
|
|
!isReadonly && track(rawTarget, "get" /* GET */, key);
|
|
}
|
|
!isReadonly && track(rawTarget, "get" /* GET */, rawKey);
|
|
const { has } = getProto(rawTarget);
|
|
const wrap = isReadonly ? toReadonly : isShallow ? toShallow : toReactive;
|
|
if (has.call(rawTarget, key)) {
|
|
return wrap(target.get(key));
|
|
}
|
|
else if (has.call(rawTarget, rawKey)) {
|
|
return wrap(target.get(rawKey));
|
|
}
|
|
}
|
|
function has$1(key, isReadonly = false) {
|
|
const target = this["__v_raw" /* RAW */];
|
|
const rawTarget = toRaw(target);
|
|
const rawKey = toRaw(key);
|
|
if (key !== rawKey) {
|
|
!isReadonly && track(rawTarget, "has" /* HAS */, key);
|
|
}
|
|
!isReadonly && track(rawTarget, "has" /* HAS */, rawKey);
|
|
return key === rawKey
|
|
? target.has(key)
|
|
: target.has(key) || target.has(rawKey);
|
|
}
|
|
function size(target, isReadonly = false) {
|
|
target = target["__v_raw" /* RAW */];
|
|
!isReadonly && track(toRaw(target), "iterate" /* ITERATE */, ITERATE_KEY);
|
|
return Reflect.get(target, 'size', target);
|
|
}
|
|
function add(value) {
|
|
value = toRaw(value);
|
|
const target = toRaw(this);
|
|
const proto = getProto(target);
|
|
const hadKey = proto.has.call(target, value);
|
|
const result = target.add(value);
|
|
if (!hadKey) {
|
|
trigger(target, "add" /* ADD */, value, value);
|
|
}
|
|
return result;
|
|
}
|
|
function set$1(key, value) {
|
|
value = toRaw(value);
|
|
const target = toRaw(this);
|
|
const { has, get } = getProto(target);
|
|
let hadKey = has.call(target, key);
|
|
if (!hadKey) {
|
|
key = toRaw(key);
|
|
hadKey = has.call(target, key);
|
|
}
|
|
else {
|
|
checkIdentityKeys(target, has, key);
|
|
}
|
|
const oldValue = get.call(target, key);
|
|
const result = target.set(key, value);
|
|
if (!hadKey) {
|
|
trigger(target, "add" /* ADD */, key, value);
|
|
}
|
|
else if (hasChanged(value, oldValue)) {
|
|
trigger(target, "set" /* SET */, key, value, oldValue);
|
|
}
|
|
return result;
|
|
}
|
|
function deleteEntry(key) {
|
|
const target = toRaw(this);
|
|
const { has, get } = getProto(target);
|
|
let hadKey = has.call(target, key);
|
|
if (!hadKey) {
|
|
key = toRaw(key);
|
|
hadKey = has.call(target, key);
|
|
}
|
|
else {
|
|
checkIdentityKeys(target, has, key);
|
|
}
|
|
const oldValue = get ? get.call(target, key) : undefined;
|
|
// forward the operation before queueing reactions
|
|
const result = target.delete(key);
|
|
if (hadKey) {
|
|
trigger(target, "delete" /* DELETE */, key, undefined, oldValue);
|
|
}
|
|
return result;
|
|
}
|
|
function clear() {
|
|
const target = toRaw(this);
|
|
const hadItems = target.size !== 0;
|
|
const oldTarget = isMap(target)
|
|
? new Map(target)
|
|
: new Set(target)
|
|
;
|
|
// forward the operation before queueing reactions
|
|
const result = target.clear();
|
|
if (hadItems) {
|
|
trigger(target, "clear" /* CLEAR */, undefined, undefined, oldTarget);
|
|
}
|
|
return result;
|
|
}
|
|
function createForEach(isReadonly, isShallow) {
|
|
return function forEach(callback, thisArg) {
|
|
const observed = this;
|
|
const target = observed["__v_raw" /* RAW */];
|
|
const rawTarget = toRaw(target);
|
|
const wrap = isReadonly ? toReadonly : isShallow ? toShallow : toReactive;
|
|
!isReadonly && track(rawTarget, "iterate" /* ITERATE */, ITERATE_KEY);
|
|
return target.forEach((value, key) => {
|
|
// important: make sure the callback is
|
|
// 1. invoked with the reactive map as `this` and 3rd arg
|
|
// 2. the value received should be a corresponding reactive/readonly.
|
|
return callback.call(thisArg, wrap(value), wrap(key), observed);
|
|
});
|
|
};
|
|
}
|
|
function createIterableMethod(method, isReadonly, isShallow) {
|
|
return function (...args) {
|
|
const target = this["__v_raw" /* RAW */];
|
|
const rawTarget = toRaw(target);
|
|
const targetIsMap = isMap(rawTarget);
|
|
const isPair = method === 'entries' || (method === Symbol.iterator && targetIsMap);
|
|
const isKeyOnly = method === 'keys' && targetIsMap;
|
|
const innerIterator = target[method](...args);
|
|
const wrap = isReadonly ? toReadonly : isShallow ? toShallow : toReactive;
|
|
!isReadonly &&
|
|
track(rawTarget, "iterate" /* ITERATE */, isKeyOnly ? MAP_KEY_ITERATE_KEY : ITERATE_KEY);
|
|
// return a wrapped iterator which returns observed versions of the
|
|
// values emitted from the real iterator
|
|
return {
|
|
// iterator protocol
|
|
next() {
|
|
const { value, done } = innerIterator.next();
|
|
return done
|
|
? { value, done }
|
|
: {
|
|
value: isPair ? [wrap(value[0]), wrap(value[1])] : wrap(value),
|
|
done
|
|
};
|
|
},
|
|
// iterable protocol
|
|
[Symbol.iterator]() {
|
|
return this;
|
|
}
|
|
};
|
|
};
|
|
}
|
|
function createReadonlyMethod(type) {
|
|
return function (...args) {
|
|
{
|
|
const key = args[0] ? `on key "${args[0]}" ` : ``;
|
|
console.warn(`${capitalize(type)} operation ${key}failed: target is readonly.`, toRaw(this));
|
|
}
|
|
return type === "delete" /* DELETE */ ? false : this;
|
|
};
|
|
}
|
|
const mutableInstrumentations = {
|
|
get(key) {
|
|
return get$1(this, key);
|
|
},
|
|
get size() {
|
|
return size(this);
|
|
},
|
|
has: has$1,
|
|
add,
|
|
set: set$1,
|
|
delete: deleteEntry,
|
|
clear,
|
|
forEach: createForEach(false, false)
|
|
};
|
|
const shallowInstrumentations = {
|
|
get(key) {
|
|
return get$1(this, key, false, true);
|
|
},
|
|
get size() {
|
|
return size(this);
|
|
},
|
|
has: has$1,
|
|
add,
|
|
set: set$1,
|
|
delete: deleteEntry,
|
|
clear,
|
|
forEach: createForEach(false, true)
|
|
};
|
|
const readonlyInstrumentations = {
|
|
get(key) {
|
|
return get$1(this, key, true);
|
|
},
|
|
get size() {
|
|
return size(this, true);
|
|
},
|
|
has(key) {
|
|
return has$1.call(this, key, true);
|
|
},
|
|
add: createReadonlyMethod("add" /* ADD */),
|
|
set: createReadonlyMethod("set" /* SET */),
|
|
delete: createReadonlyMethod("delete" /* DELETE */),
|
|
clear: createReadonlyMethod("clear" /* CLEAR */),
|
|
forEach: createForEach(true, false)
|
|
};
|
|
const iteratorMethods = ['keys', 'values', 'entries', Symbol.iterator];
|
|
iteratorMethods.forEach(method => {
|
|
mutableInstrumentations[method] = createIterableMethod(method, false, false);
|
|
readonlyInstrumentations[method] = createIterableMethod(method, true, false);
|
|
shallowInstrumentations[method] = createIterableMethod(method, false, true);
|
|
});
|
|
function createInstrumentationGetter(isReadonly, shallow) {
|
|
const instrumentations = shallow
|
|
? shallowInstrumentations
|
|
: isReadonly
|
|
? readonlyInstrumentations
|
|
: mutableInstrumentations;
|
|
return (target, key, receiver) => {
|
|
if (key === "__v_isReactive" /* IS_REACTIVE */) {
|
|
return !isReadonly;
|
|
}
|
|
else if (key === "__v_isReadonly" /* IS_READONLY */) {
|
|
return isReadonly;
|
|
}
|
|
else if (key === "__v_raw" /* RAW */) {
|
|
return target;
|
|
}
|
|
return Reflect.get(hasOwn(instrumentations, key) && key in target
|
|
? instrumentations
|
|
: target, key, receiver);
|
|
};
|
|
}
|
|
const mutableCollectionHandlers = {
|
|
get: createInstrumentationGetter(false, false)
|
|
};
|
|
const shallowCollectionHandlers = {
|
|
get: createInstrumentationGetter(false, true)
|
|
};
|
|
const readonlyCollectionHandlers = {
|
|
get: createInstrumentationGetter(true, false)
|
|
};
|
|
function checkIdentityKeys(target, has, key) {
|
|
const rawKey = toRaw(key);
|
|
if (rawKey !== key && has.call(target, rawKey)) {
|
|
const type = toRawType(target);
|
|
console.warn(`Reactive ${type} contains both the raw and reactive ` +
|
|
`versions of the same object${type === `Map` ? ` as keys` : ``}, ` +
|
|
`which can lead to inconsistencies. ` +
|
|
`Avoid differentiating between the raw and reactive versions ` +
|
|
`of an object and only use the reactive version if possible.`);
|
|
}
|
|
}
|
|
|
|
const reactiveMap = new WeakMap();
|
|
const readonlyMap = new WeakMap();
|
|
function targetTypeMap(rawType) {
|
|
switch (rawType) {
|
|
case 'Object':
|
|
case 'Array':
|
|
return 1 /* COMMON */;
|
|
case 'Map':
|
|
case 'Set':
|
|
case 'WeakMap':
|
|
case 'WeakSet':
|
|
return 2 /* COLLECTION */;
|
|
default:
|
|
return 0 /* INVALID */;
|
|
}
|
|
}
|
|
function getTargetType(value) {
|
|
return value["__v_skip" /* SKIP */] || !Object.isExtensible(value)
|
|
? 0 /* INVALID */
|
|
: targetTypeMap(toRawType(value));
|
|
}
|
|
function reactive(target) {
|
|
// if trying to observe a readonly proxy, return the readonly version.
|
|
if (target && target["__v_isReadonly" /* IS_READONLY */]) {
|
|
return target;
|
|
}
|
|
return createReactiveObject(target, false, mutableHandlers, mutableCollectionHandlers);
|
|
}
|
|
// Return a reactive-copy of the original object, where only the root level
|
|
// properties are reactive, and does NOT unwrap refs nor recursively convert
|
|
// returned properties.
|
|
function shallowReactive(target) {
|
|
return createReactiveObject(target, false, shallowReactiveHandlers, shallowCollectionHandlers);
|
|
}
|
|
function readonly(target) {
|
|
return createReactiveObject(target, true, readonlyHandlers, readonlyCollectionHandlers);
|
|
}
|
|
// Return a reactive-copy of the original object, where only the root level
|
|
// properties are readonly, and does NOT unwrap refs nor recursively convert
|
|
// returned properties.
|
|
// This is used for creating the props proxy object for stateful components.
|
|
function shallowReadonly(target) {
|
|
return createReactiveObject(target, true, shallowReadonlyHandlers, readonlyCollectionHandlers);
|
|
}
|
|
function createReactiveObject(target, isReadonly, baseHandlers, collectionHandlers) {
|
|
if (!isObject(target)) {
|
|
{
|
|
console.warn(`value cannot be made reactive: ${String(target)}`);
|
|
}
|
|
return target;
|
|
}
|
|
// target is already a Proxy, return it.
|
|
// exception: calling readonly() on a reactive object
|
|
if (target["__v_raw" /* RAW */] &&
|
|
!(isReadonly && target["__v_isReactive" /* IS_REACTIVE */])) {
|
|
return target;
|
|
}
|
|
// target already has corresponding Proxy
|
|
const proxyMap = isReadonly ? readonlyMap : reactiveMap;
|
|
const existingProxy = proxyMap.get(target);
|
|
if (existingProxy) {
|
|
return existingProxy;
|
|
}
|
|
// only a whitelist of value types can be observed.
|
|
const targetType = getTargetType(target);
|
|
if (targetType === 0 /* INVALID */) {
|
|
return target;
|
|
}
|
|
const proxy = new Proxy(target, targetType === 2 /* COLLECTION */ ? collectionHandlers : baseHandlers);
|
|
proxyMap.set(target, proxy);
|
|
return proxy;
|
|
}
|
|
function isReactive(value) {
|
|
if (isReadonly(value)) {
|
|
return isReactive(value["__v_raw" /* RAW */]);
|
|
}
|
|
return !!(value && value["__v_isReactive" /* IS_REACTIVE */]);
|
|
}
|
|
function isReadonly(value) {
|
|
return !!(value && value["__v_isReadonly" /* IS_READONLY */]);
|
|
}
|
|
function isProxy(value) {
|
|
return isReactive(value) || isReadonly(value);
|
|
}
|
|
function toRaw(observed) {
|
|
return ((observed && toRaw(observed["__v_raw" /* RAW */])) || observed);
|
|
}
|
|
function markRaw(value) {
|
|
def(value, "__v_skip" /* SKIP */, true);
|
|
return value;
|
|
}
|
|
|
|
const convert = (val) => isObject(val) ? reactive(val) : val;
|
|
function isRef(r) {
|
|
return Boolean(r && r.__v_isRef === true);
|
|
}
|
|
function ref(value) {
|
|
return createRef(value);
|
|
}
|
|
function shallowRef(value) {
|
|
return createRef(value, true);
|
|
}
|
|
class RefImpl {
|
|
constructor(_rawValue, _shallow = false) {
|
|
this._rawValue = _rawValue;
|
|
this._shallow = _shallow;
|
|
this.__v_isRef = true;
|
|
this._value = _shallow ? _rawValue : convert(_rawValue);
|
|
}
|
|
get value() {
|
|
track(toRaw(this), "get" /* GET */, 'value');
|
|
return this._value;
|
|
}
|
|
set value(newVal) {
|
|
if (hasChanged(toRaw(newVal), this._rawValue)) {
|
|
this._rawValue = newVal;
|
|
this._value = this._shallow ? newVal : convert(newVal);
|
|
trigger(toRaw(this), "set" /* SET */, 'value', newVal);
|
|
}
|
|
}
|
|
}
|
|
function createRef(rawValue, shallow = false) {
|
|
if (isRef(rawValue)) {
|
|
return rawValue;
|
|
}
|
|
return new RefImpl(rawValue, shallow);
|
|
}
|
|
function triggerRef(ref) {
|
|
trigger(toRaw(ref), "set" /* SET */, 'value', ref.value );
|
|
}
|
|
function unref(ref) {
|
|
return isRef(ref) ? ref.value : ref;
|
|
}
|
|
const shallowUnwrapHandlers = {
|
|
get: (target, key, receiver) => unref(Reflect.get(target, key, receiver)),
|
|
set: (target, key, value, receiver) => {
|
|
const oldValue = target[key];
|
|
if (isRef(oldValue) && !isRef(value)) {
|
|
oldValue.value = value;
|
|
return true;
|
|
}
|
|
else {
|
|
return Reflect.set(target, key, value, receiver);
|
|
}
|
|
}
|
|
};
|
|
function proxyRefs(objectWithRefs) {
|
|
return isReactive(objectWithRefs)
|
|
? objectWithRefs
|
|
: new Proxy(objectWithRefs, shallowUnwrapHandlers);
|
|
}
|
|
class CustomRefImpl {
|
|
constructor(factory) {
|
|
this.__v_isRef = true;
|
|
const { get, set } = factory(() => track(this, "get" /* GET */, 'value'), () => trigger(this, "set" /* SET */, 'value'));
|
|
this._get = get;
|
|
this._set = set;
|
|
}
|
|
get value() {
|
|
return this._get();
|
|
}
|
|
set value(newVal) {
|
|
this._set(newVal);
|
|
}
|
|
}
|
|
function customRef(factory) {
|
|
return new CustomRefImpl(factory);
|
|
}
|
|
function toRefs(object) {
|
|
if ( !isProxy(object)) {
|
|
console.warn(`toRefs() expects a reactive object but received a plain one.`);
|
|
}
|
|
const ret = isArray(object) ? new Array(object.length) : {};
|
|
for (const key in object) {
|
|
ret[key] = toRef(object, key);
|
|
}
|
|
return ret;
|
|
}
|
|
class ObjectRefImpl {
|
|
constructor(_object, _key) {
|
|
this._object = _object;
|
|
this._key = _key;
|
|
this.__v_isRef = true;
|
|
}
|
|
get value() {
|
|
return this._object[this._key];
|
|
}
|
|
set value(newVal) {
|
|
this._object[this._key] = newVal;
|
|
}
|
|
}
|
|
function toRef(object, key) {
|
|
return isRef(object[key])
|
|
? object[key]
|
|
: new ObjectRefImpl(object, key);
|
|
}
|
|
|
|
class ComputedRefImpl {
|
|
constructor(getter, _setter, isReadonly) {
|
|
this._setter = _setter;
|
|
this._dirty = true;
|
|
this.__v_isRef = true;
|
|
this.effect = effect(getter, {
|
|
lazy: true,
|
|
scheduler: () => {
|
|
if (!this._dirty) {
|
|
this._dirty = true;
|
|
trigger(toRaw(this), "set" /* SET */, 'value');
|
|
}
|
|
}
|
|
});
|
|
this["__v_isReadonly" /* IS_READONLY */] = isReadonly;
|
|
}
|
|
get value() {
|
|
if (this._dirty) {
|
|
this._value = this.effect();
|
|
this._dirty = false;
|
|
}
|
|
track(toRaw(this), "get" /* GET */, 'value');
|
|
return this._value;
|
|
}
|
|
set value(newValue) {
|
|
this._setter(newValue);
|
|
}
|
|
}
|
|
function computed(getterOrOptions) {
|
|
let getter;
|
|
let setter;
|
|
if (isFunction(getterOrOptions)) {
|
|
getter = getterOrOptions;
|
|
setter = () => {
|
|
console.warn('Write operation failed: computed value is readonly');
|
|
}
|
|
;
|
|
}
|
|
else {
|
|
getter = getterOrOptions.get;
|
|
setter = getterOrOptions.set;
|
|
}
|
|
return new ComputedRefImpl(getter, setter, isFunction(getterOrOptions) || !getterOrOptions.set);
|
|
}
|
|
|
|
const stack = [];
|
|
function pushWarningContext(vnode) {
|
|
stack.push(vnode);
|
|
}
|
|
function popWarningContext() {
|
|
stack.pop();
|
|
}
|
|
function warn(msg, ...args) {
|
|
// avoid props formatting or warn handler tracking deps that might be mutated
|
|
// during patch, leading to infinite recursion.
|
|
pauseTracking();
|
|
const instance = stack.length ? stack[stack.length - 1].component : null;
|
|
const appWarnHandler = instance && instance.appContext.config.warnHandler;
|
|
const trace = getComponentTrace();
|
|
if (appWarnHandler) {
|
|
callWithErrorHandling(appWarnHandler, instance, 11 /* APP_WARN_HANDLER */, [
|
|
msg + args.join(''),
|
|
instance && instance.proxy,
|
|
trace
|
|
.map(({ vnode }) => `at <${formatComponentName(instance, vnode.type)}>`)
|
|
.join('\n'),
|
|
trace
|
|
]);
|
|
}
|
|
else {
|
|
const warnArgs = [`[Vue warn]: ${msg}`, ...args];
|
|
/* istanbul ignore if */
|
|
if (trace.length &&
|
|
// avoid spamming console during tests
|
|
!false) {
|
|
warnArgs.push(`\n`, ...formatTrace(trace));
|
|
}
|
|
console.warn(...warnArgs);
|
|
}
|
|
resetTracking();
|
|
}
|
|
function getComponentTrace() {
|
|
let currentVNode = stack[stack.length - 1];
|
|
if (!currentVNode) {
|
|
return [];
|
|
}
|
|
// we can't just use the stack because it will be incomplete during updates
|
|
// that did not start from the root. Re-construct the parent chain using
|
|
// instance parent pointers.
|
|
const normalizedStack = [];
|
|
while (currentVNode) {
|
|
const last = normalizedStack[0];
|
|
if (last && last.vnode === currentVNode) {
|
|
last.recurseCount++;
|
|
}
|
|
else {
|
|
normalizedStack.push({
|
|
vnode: currentVNode,
|
|
recurseCount: 0
|
|
});
|
|
}
|
|
const parentInstance = currentVNode.component && currentVNode.component.parent;
|
|
currentVNode = parentInstance && parentInstance.vnode;
|
|
}
|
|
return normalizedStack;
|
|
}
|
|
/* istanbul ignore next */
|
|
function formatTrace(trace) {
|
|
const logs = [];
|
|
trace.forEach((entry, i) => {
|
|
logs.push(...(i === 0 ? [] : [`\n`]), ...formatTraceEntry(entry));
|
|
});
|
|
return logs;
|
|
}
|
|
function formatTraceEntry({ vnode, recurseCount }) {
|
|
const postfix = recurseCount > 0 ? `... (${recurseCount} recursive calls)` : ``;
|
|
const isRoot = vnode.component ? vnode.component.parent == null : false;
|
|
const open = ` at <${formatComponentName(vnode.component, vnode.type, isRoot)}`;
|
|
const close = `>` + postfix;
|
|
return vnode.props
|
|
? [open, ...formatProps(vnode.props), close]
|
|
: [open + close];
|
|
}
|
|
/* istanbul ignore next */
|
|
function formatProps(props) {
|
|
const res = [];
|
|
const keys = Object.keys(props);
|
|
keys.slice(0, 3).forEach(key => {
|
|
res.push(...formatProp(key, props[key]));
|
|
});
|
|
if (keys.length > 3) {
|
|
res.push(` ...`);
|
|
}
|
|
return res;
|
|
}
|
|
/* istanbul ignore next */
|
|
function formatProp(key, value, raw) {
|
|
if (isString(value)) {
|
|
value = JSON.stringify(value);
|
|
return raw ? value : [`${key}=${value}`];
|
|
}
|
|
else if (typeof value === 'number' ||
|
|
typeof value === 'boolean' ||
|
|
value == null) {
|
|
return raw ? value : [`${key}=${value}`];
|
|
}
|
|
else if (isRef(value)) {
|
|
value = formatProp(key, toRaw(value.value), true);
|
|
return raw ? value : [`${key}=Ref<`, value, `>`];
|
|
}
|
|
else if (isFunction(value)) {
|
|
return [`${key}=fn${value.name ? `<${value.name}>` : ``}`];
|
|
}
|
|
else {
|
|
value = toRaw(value);
|
|
return raw ? value : [`${key}=`, value];
|
|
}
|
|
}
|
|
|
|
const ErrorTypeStrings = {
|
|
["bc" /* BEFORE_CREATE */]: 'beforeCreate hook',
|
|
["c" /* CREATED */]: 'created hook',
|
|
["bm" /* BEFORE_MOUNT */]: 'beforeMount hook',
|
|
["m" /* MOUNTED */]: 'mounted hook',
|
|
["bu" /* BEFORE_UPDATE */]: 'beforeUpdate hook',
|
|
["u" /* UPDATED */]: 'updated',
|
|
["bum" /* BEFORE_UNMOUNT */]: 'beforeUnmount hook',
|
|
["um" /* UNMOUNTED */]: 'unmounted hook',
|
|
["a" /* ACTIVATED */]: 'activated hook',
|
|
["da" /* DEACTIVATED */]: 'deactivated hook',
|
|
["ec" /* ERROR_CAPTURED */]: 'errorCaptured hook',
|
|
["rtc" /* RENDER_TRACKED */]: 'renderTracked hook',
|
|
["rtg" /* RENDER_TRIGGERED */]: 'renderTriggered hook',
|
|
[0 /* SETUP_FUNCTION */]: 'setup function',
|
|
[1 /* RENDER_FUNCTION */]: 'render function',
|
|
[2 /* WATCH_GETTER */]: 'watcher getter',
|
|
[3 /* WATCH_CALLBACK */]: 'watcher callback',
|
|
[4 /* WATCH_CLEANUP */]: 'watcher cleanup function',
|
|
[5 /* NATIVE_EVENT_HANDLER */]: 'native event handler',
|
|
[6 /* COMPONENT_EVENT_HANDLER */]: 'component event handler',
|
|
[7 /* VNODE_HOOK */]: 'vnode hook',
|
|
[8 /* DIRECTIVE_HOOK */]: 'directive hook',
|
|
[9 /* TRANSITION_HOOK */]: 'transition hook',
|
|
[10 /* APP_ERROR_HANDLER */]: 'app errorHandler',
|
|
[11 /* APP_WARN_HANDLER */]: 'app warnHandler',
|
|
[12 /* FUNCTION_REF */]: 'ref function',
|
|
[13 /* ASYNC_COMPONENT_LOADER */]: 'async component loader',
|
|
[14 /* SCHEDULER */]: 'scheduler flush. This is likely a Vue internals bug. ' +
|
|
'Please open an issue at https://new-issue.vuejs.org/?repo=vuejs/vue-next'
|
|
};
|
|
function callWithErrorHandling(fn, instance, type, args) {
|
|
let res;
|
|
try {
|
|
res = args ? fn(...args) : fn();
|
|
}
|
|
catch (err) {
|
|
handleError(err, instance, type);
|
|
}
|
|
return res;
|
|
}
|
|
function callWithAsyncErrorHandling(fn, instance, type, args) {
|
|
if (isFunction(fn)) {
|
|
const res = callWithErrorHandling(fn, instance, type, args);
|
|
if (res && isPromise(res)) {
|
|
res.catch(err => {
|
|
handleError(err, instance, type);
|
|
});
|
|
}
|
|
return res;
|
|
}
|
|
const values = [];
|
|
for (let i = 0; i < fn.length; i++) {
|
|
values.push(callWithAsyncErrorHandling(fn[i], instance, type, args));
|
|
}
|
|
return values;
|
|
}
|
|
function handleError(err, instance, type, throwInDev = true) {
|
|
const contextVNode = instance ? instance.vnode : null;
|
|
if (instance) {
|
|
let cur = instance.parent;
|
|
// the exposed instance is the render proxy to keep it consistent with 2.x
|
|
const exposedInstance = instance.proxy;
|
|
// in production the hook receives only the error code
|
|
const errorInfo = ErrorTypeStrings[type] ;
|
|
while (cur) {
|
|
const errorCapturedHooks = cur.ec;
|
|
if (errorCapturedHooks) {
|
|
for (let i = 0; i < errorCapturedHooks.length; i++) {
|
|
if (errorCapturedHooks[i](err, exposedInstance, errorInfo) === false) {
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
cur = cur.parent;
|
|
}
|
|
// app-level handling
|
|
const appErrorHandler = instance.appContext.config.errorHandler;
|
|
if (appErrorHandler) {
|
|
callWithErrorHandling(appErrorHandler, null, 10 /* APP_ERROR_HANDLER */, [err, exposedInstance, errorInfo]);
|
|
return;
|
|
}
|
|
}
|
|
logError(err, type, contextVNode, throwInDev);
|
|
}
|
|
function logError(err, type, contextVNode, throwInDev = true) {
|
|
{
|
|
const info = ErrorTypeStrings[type];
|
|
if (contextVNode) {
|
|
pushWarningContext(contextVNode);
|
|
}
|
|
warn(`Unhandled error${info ? ` during execution of ${info}` : ``}`);
|
|
if (contextVNode) {
|
|
popWarningContext();
|
|
}
|
|
// crash in dev by default so it's more noticeable
|
|
if (throwInDev) {
|
|
throw err;
|
|
}
|
|
else {
|
|
console.error(err);
|
|
}
|
|
}
|
|
}
|
|
|
|
let isFlushing = false;
|
|
let isFlushPending = false;
|
|
const queue = [];
|
|
let flushIndex = 0;
|
|
const pendingPreFlushCbs = [];
|
|
let activePreFlushCbs = null;
|
|
let preFlushIndex = 0;
|
|
const pendingPostFlushCbs = [];
|
|
let activePostFlushCbs = null;
|
|
let postFlushIndex = 0;
|
|
const resolvedPromise = Promise.resolve();
|
|
let currentFlushPromise = null;
|
|
let currentPreFlushParentJob = null;
|
|
const RECURSION_LIMIT = 100;
|
|
function nextTick(fn) {
|
|
const p = currentFlushPromise || resolvedPromise;
|
|
return fn ? p.then(this ? fn.bind(this) : fn) : p;
|
|
}
|
|
function queueJob(job) {
|
|
// the dedupe search uses the startIndex argument of Array.includes()
|
|
// by default the search index includes the current job that is being run
|
|
// so it cannot recursively trigger itself again.
|
|
// if the job is a watch() callback, the search will start with a +1 index to
|
|
// allow it recursively trigger itself - it is the user's responsibility to
|
|
// ensure it doesn't end up in an infinite loop.
|
|
if ((!queue.length ||
|
|
!queue.includes(job, isFlushing && job.allowRecurse ? flushIndex + 1 : flushIndex)) &&
|
|
job !== currentPreFlushParentJob) {
|
|
queue.push(job);
|
|
queueFlush();
|
|
}
|
|
}
|
|
function queueFlush() {
|
|
if (!isFlushing && !isFlushPending) {
|
|
isFlushPending = true;
|
|
currentFlushPromise = resolvedPromise.then(flushJobs);
|
|
}
|
|
}
|
|
function invalidateJob(job) {
|
|
const i = queue.indexOf(job);
|
|
if (i > -1) {
|
|
queue[i] = null;
|
|
}
|
|
}
|
|
function queueCb(cb, activeQueue, pendingQueue, index) {
|
|
if (!isArray(cb)) {
|
|
if (!activeQueue ||
|
|
!activeQueue.includes(cb, cb.allowRecurse ? index + 1 : index)) {
|
|
pendingQueue.push(cb);
|
|
}
|
|
}
|
|
else {
|
|
// if cb is an array, it is a component lifecycle hook which can only be
|
|
// triggered by a job, which is already deduped in the main queue, so
|
|
// we can skip duplicate check here to improve perf
|
|
pendingQueue.push(...cb);
|
|
}
|
|
queueFlush();
|
|
}
|
|
function queuePreFlushCb(cb) {
|
|
queueCb(cb, activePreFlushCbs, pendingPreFlushCbs, preFlushIndex);
|
|
}
|
|
function queuePostFlushCb(cb) {
|
|
queueCb(cb, activePostFlushCbs, pendingPostFlushCbs, postFlushIndex);
|
|
}
|
|
function flushPreFlushCbs(seen, parentJob = null) {
|
|
if (pendingPreFlushCbs.length) {
|
|
currentPreFlushParentJob = parentJob;
|
|
activePreFlushCbs = [...new Set(pendingPreFlushCbs)];
|
|
pendingPreFlushCbs.length = 0;
|
|
{
|
|
seen = seen || new Map();
|
|
}
|
|
for (preFlushIndex = 0; preFlushIndex < activePreFlushCbs.length; preFlushIndex++) {
|
|
{
|
|
checkRecursiveUpdates(seen, activePreFlushCbs[preFlushIndex]);
|
|
}
|
|
activePreFlushCbs[preFlushIndex]();
|
|
}
|
|
activePreFlushCbs = null;
|
|
preFlushIndex = 0;
|
|
currentPreFlushParentJob = null;
|
|
// recursively flush until it drains
|
|
flushPreFlushCbs(seen, parentJob);
|
|
}
|
|
}
|
|
function flushPostFlushCbs(seen) {
|
|
if (pendingPostFlushCbs.length) {
|
|
const deduped = [...new Set(pendingPostFlushCbs)];
|
|
pendingPostFlushCbs.length = 0;
|
|
// #1947 already has active queue, nested flushPostFlushCbs call
|
|
if (activePostFlushCbs) {
|
|
activePostFlushCbs.push(...deduped);
|
|
return;
|
|
}
|
|
activePostFlushCbs = deduped;
|
|
{
|
|
seen = seen || new Map();
|
|
}
|
|
activePostFlushCbs.sort((a, b) => getId(a) - getId(b));
|
|
for (postFlushIndex = 0; postFlushIndex < activePostFlushCbs.length; postFlushIndex++) {
|
|
{
|
|
checkRecursiveUpdates(seen, activePostFlushCbs[postFlushIndex]);
|
|
}
|
|
activePostFlushCbs[postFlushIndex]();
|
|
}
|
|
activePostFlushCbs = null;
|
|
postFlushIndex = 0;
|
|
}
|
|
}
|
|
const getId = (job) => job.id == null ? Infinity : job.id;
|
|
function flushJobs(seen) {
|
|
isFlushPending = false;
|
|
isFlushing = true;
|
|
{
|
|
seen = seen || new Map();
|
|
}
|
|
flushPreFlushCbs(seen);
|
|
// Sort queue before flush.
|
|
// This ensures that:
|
|
// 1. Components are updated from parent to child. (because parent is always
|
|
// created before the child so its render effect will have smaller
|
|
// priority number)
|
|
// 2. If a component is unmounted during a parent component's update,
|
|
// its update can be skipped.
|
|
// Jobs can never be null before flush starts, since they are only invalidated
|
|
// during execution of another flushed job.
|
|
queue.sort((a, b) => getId(a) - getId(b));
|
|
try {
|
|
for (flushIndex = 0; flushIndex < queue.length; flushIndex++) {
|
|
const job = queue[flushIndex];
|
|
if (job) {
|
|
if (true) {
|
|
checkRecursiveUpdates(seen, job);
|
|
}
|
|
callWithErrorHandling(job, null, 14 /* SCHEDULER */);
|
|
}
|
|
}
|
|
}
|
|
finally {
|
|
flushIndex = 0;
|
|
queue.length = 0;
|
|
flushPostFlushCbs(seen);
|
|
isFlushing = false;
|
|
currentFlushPromise = null;
|
|
// some postFlushCb queued jobs!
|
|
// keep flushing until it drains.
|
|
if (queue.length || pendingPostFlushCbs.length) {
|
|
flushJobs(seen);
|
|
}
|
|
}
|
|
}
|
|
function checkRecursiveUpdates(seen, fn) {
|
|
if (!seen.has(fn)) {
|
|
seen.set(fn, 1);
|
|
}
|
|
else {
|
|
const count = seen.get(fn);
|
|
if (count > RECURSION_LIMIT) {
|
|
throw new Error(`Maximum recursive updates exceeded. ` +
|
|
`This means you have a reactive effect that is mutating its own ` +
|
|
`dependencies and thus recursively triggering itself. Possible sources ` +
|
|
`include component template, render function, updated hook or ` +
|
|
`watcher source function.`);
|
|
}
|
|
else {
|
|
seen.set(fn, count + 1);
|
|
}
|
|
}
|
|
}
|
|
|
|
/* eslint-disable no-restricted-globals */
|
|
let isHmrUpdating = false;
|
|
const hmrDirtyComponents = new Set();
|
|
// Expose the HMR runtime on the global object
|
|
// This makes it entirely tree-shakable without polluting the exports and makes
|
|
// it easier to be used in toolings like vue-loader
|
|
// Note: for a component to be eligible for HMR it also needs the __hmrId option
|
|
// to be set so that its instances can be registered / removed.
|
|
{
|
|
const globalObject = typeof global !== 'undefined'
|
|
? global
|
|
: typeof self !== 'undefined'
|
|
? self
|
|
: typeof window !== 'undefined'
|
|
? window
|
|
: {};
|
|
globalObject.__VUE_HMR_RUNTIME__ = {
|
|
createRecord: tryWrap(createRecord),
|
|
rerender: tryWrap(rerender),
|
|
reload: tryWrap(reload)
|
|
};
|
|
}
|
|
const map = new Map();
|
|
function registerHMR(instance) {
|
|
const id = instance.type.__hmrId;
|
|
let record = map.get(id);
|
|
if (!record) {
|
|
createRecord(id);
|
|
record = map.get(id);
|
|
}
|
|
record.add(instance);
|
|
}
|
|
function unregisterHMR(instance) {
|
|
map.get(instance.type.__hmrId).delete(instance);
|
|
}
|
|
function createRecord(id) {
|
|
if (map.has(id)) {
|
|
return false;
|
|
}
|
|
map.set(id, new Set());
|
|
return true;
|
|
}
|
|
function rerender(id, newRender) {
|
|
const record = map.get(id);
|
|
if (!record)
|
|
return;
|
|
// Array.from creates a snapshot which avoids the set being mutated during
|
|
// updates
|
|
Array.from(record).forEach(instance => {
|
|
if (newRender) {
|
|
instance.render = newRender;
|
|
}
|
|
instance.renderCache = [];
|
|
// this flag forces child components with slot content to update
|
|
isHmrUpdating = true;
|
|
instance.update();
|
|
isHmrUpdating = false;
|
|
});
|
|
}
|
|
function reload(id, newComp) {
|
|
const record = map.get(id);
|
|
if (!record)
|
|
return;
|
|
// Array.from creates a snapshot which avoids the set being mutated during
|
|
// updates
|
|
Array.from(record).forEach(instance => {
|
|
const comp = instance.type;
|
|
if (!hmrDirtyComponents.has(comp)) {
|
|
// 1. Update existing comp definition to match new one
|
|
newComp = isClassComponent(newComp) ? newComp.__vccOpts : newComp;
|
|
extend(comp, newComp);
|
|
for (const key in comp) {
|
|
if (!(key in newComp)) {
|
|
delete comp[key];
|
|
}
|
|
}
|
|
// 2. Mark component dirty. This forces the renderer to replace the component
|
|
// on patch.
|
|
hmrDirtyComponents.add(comp);
|
|
// 3. Make sure to unmark the component after the reload.
|
|
queuePostFlushCb(() => {
|
|
hmrDirtyComponents.delete(comp);
|
|
});
|
|
}
|
|
if (instance.parent) {
|
|
// 4. Force the parent instance to re-render. This will cause all updated
|
|
// components to be unmounted and re-mounted. Queue the update so that we
|
|
// don't end up forcing the same parent to re-render multiple times.
|
|
queueJob(instance.parent.update);
|
|
}
|
|
else if (instance.appContext.reload) {
|
|
// root instance mounted via createApp() has a reload method
|
|
instance.appContext.reload();
|
|
}
|
|
else if (typeof window !== 'undefined') {
|
|
// root instance inside tree created via raw render(). Force reload.
|
|
window.location.reload();
|
|
}
|
|
else {
|
|
console.warn('[HMR] Root or manually mounted instance modified. Full reload required.');
|
|
}
|
|
});
|
|
}
|
|
function tryWrap(fn) {
|
|
return (id, arg) => {
|
|
try {
|
|
return fn(id, arg);
|
|
}
|
|
catch (e) {
|
|
console.error(e);
|
|
console.warn(`[HMR] Something went wrong during Vue component hot-reload. ` +
|
|
`Full reload required.`);
|
|
}
|
|
};
|
|
}
|
|
|
|
function setDevtoolsHook(hook) {
|
|
exports.devtools = hook;
|
|
}
|
|
function devtoolsInitApp(app, version) {
|
|
// TODO queue if devtools is undefined
|
|
if (!exports.devtools)
|
|
return;
|
|
exports.devtools.emit("app:init" /* APP_INIT */, app, version, {
|
|
Fragment,
|
|
Text,
|
|
Comment,
|
|
Static
|
|
});
|
|
}
|
|
function devtoolsUnmountApp(app) {
|
|
if (!exports.devtools)
|
|
return;
|
|
exports.devtools.emit("app:unmount" /* APP_UNMOUNT */, app);
|
|
}
|
|
const devtoolsComponentAdded = /*#__PURE__*/ createDevtoolsComponentHook("component:added" /* COMPONENT_ADDED */);
|
|
const devtoolsComponentUpdated = /*#__PURE__*/ createDevtoolsComponentHook("component:updated" /* COMPONENT_UPDATED */);
|
|
const devtoolsComponentRemoved = /*#__PURE__*/ createDevtoolsComponentHook("component:removed" /* COMPONENT_REMOVED */);
|
|
function createDevtoolsComponentHook(hook) {
|
|
return (component) => {
|
|
if (!exports.devtools)
|
|
return;
|
|
exports.devtools.emit(hook, component.appContext.app, component.uid, component.parent ? component.parent.uid : undefined);
|
|
};
|
|
}
|
|
function devtoolsComponentEmit(component, event, params) {
|
|
if (!exports.devtools)
|
|
return;
|
|
exports.devtools.emit("component:emit" /* COMPONENT_EMIT */, component.appContext.app, component, event, params);
|
|
}
|
|
|
|
function emit(instance, event, ...rawArgs) {
|
|
const props = instance.vnode.props || EMPTY_OBJ;
|
|
{
|
|
const { emitsOptions, propsOptions: [propsOptions] } = instance;
|
|
if (emitsOptions) {
|
|
if (!(event in emitsOptions)) {
|
|
if (!propsOptions || !(toHandlerKey(event) in propsOptions)) {
|
|
warn(`Component emitted event "${event}" but it is neither declared in ` +
|
|
`the emits option nor as an "${toHandlerKey(event)}" prop.`);
|
|
}
|
|
}
|
|
else {
|
|
const validator = emitsOptions[event];
|
|
if (isFunction(validator)) {
|
|
const isValid = validator(...rawArgs);
|
|
if (!isValid) {
|
|
warn(`Invalid event arguments: event validation failed for event "${event}".`);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
let args = rawArgs;
|
|
const isModelListener = event.startsWith('update:');
|
|
// for v-model update:xxx events, apply modifiers on args
|
|
const modelArg = isModelListener && event.slice(7);
|
|
if (modelArg && modelArg in props) {
|
|
const modifiersKey = `${modelArg === 'modelValue' ? 'model' : modelArg}Modifiers`;
|
|
const { number, trim } = props[modifiersKey] || EMPTY_OBJ;
|
|
if (trim) {
|
|
args = rawArgs.map(a => a.trim());
|
|
}
|
|
else if (number) {
|
|
args = rawArgs.map(toNumber);
|
|
}
|
|
}
|
|
{
|
|
devtoolsComponentEmit(instance, event, args);
|
|
}
|
|
{
|
|
const lowerCaseEvent = event.toLowerCase();
|
|
if (lowerCaseEvent !== event && props[toHandlerKey(lowerCaseEvent)]) {
|
|
warn(`Event "${lowerCaseEvent}" is emitted in component ` +
|
|
`${formatComponentName(instance, instance.type)} but the handler is registered for "${event}". ` +
|
|
`Note that HTML attributes are case-insensitive and you cannot use ` +
|
|
`v-on to listen to camelCase events when using in-DOM templates. ` +
|
|
`You should probably use "${hyphenate(event)}" instead of "${event}".`);
|
|
}
|
|
}
|
|
// convert handler name to camelCase. See issue #2249
|
|
let handlerName = toHandlerKey(camelize(event));
|
|
let handler = props[handlerName];
|
|
// for v-model update:xxx events, also trigger kebab-case equivalent
|
|
// for props passed via kebab-case
|
|
if (!handler && isModelListener) {
|
|
handlerName = toHandlerKey(hyphenate(event));
|
|
handler = props[handlerName];
|
|
}
|
|
if (handler) {
|
|
callWithAsyncErrorHandling(handler, instance, 6 /* COMPONENT_EVENT_HANDLER */, args);
|
|
}
|
|
const onceHandler = props[handlerName + `Once`];
|
|
if (onceHandler) {
|
|
if (!instance.emitted) {
|
|
(instance.emitted = {})[handlerName] = true;
|
|
}
|
|
else if (instance.emitted[handlerName]) {
|
|
return;
|
|
}
|
|
callWithAsyncErrorHandling(onceHandler, instance, 6 /* COMPONENT_EVENT_HANDLER */, args);
|
|
}
|
|
}
|
|
function normalizeEmitsOptions(comp, appContext, asMixin = false) {
|
|
if (!appContext.deopt && comp.__emits !== undefined) {
|
|
return comp.__emits;
|
|
}
|
|
const raw = comp.emits;
|
|
let normalized = {};
|
|
// apply mixin/extends props
|
|
let hasExtends = false;
|
|
if ( !isFunction(comp)) {
|
|
const extendEmits = (raw) => {
|
|
hasExtends = true;
|
|
extend(normalized, normalizeEmitsOptions(raw, appContext, true));
|
|
};
|
|
if (!asMixin && appContext.mixins.length) {
|
|
appContext.mixins.forEach(extendEmits);
|
|
}
|
|
if (comp.extends) {
|
|
extendEmits(comp.extends);
|
|
}
|
|
if (comp.mixins) {
|
|
comp.mixins.forEach(extendEmits);
|
|
}
|
|
}
|
|
if (!raw && !hasExtends) {
|
|
return (comp.__emits = null);
|
|
}
|
|
if (isArray(raw)) {
|
|
raw.forEach(key => (normalized[key] = null));
|
|
}
|
|
else {
|
|
extend(normalized, raw);
|
|
}
|
|
return (comp.__emits = normalized);
|
|
}
|
|
// Check if an incoming prop key is a declared emit event listener.
|
|
// e.g. With `emits: { click: null }`, props named `onClick` and `onclick` are
|
|
// both considered matched listeners.
|
|
function isEmitListener(options, key) {
|
|
if (!options || !isOn(key)) {
|
|
return false;
|
|
}
|
|
key = key.replace(/Once$/, '');
|
|
return (hasOwn(options, key[2].toLowerCase() + key.slice(3)) ||
|
|
hasOwn(options, key.slice(2)));
|
|
}
|
|
|
|
// mark the current rendering instance for asset resolution (e.g.
|
|
// resolveComponent, resolveDirective) during render
|
|
let currentRenderingInstance = null;
|
|
function setCurrentRenderingInstance(instance) {
|
|
currentRenderingInstance = instance;
|
|
}
|
|
// dev only flag to track whether $attrs was used during render.
|
|
// If $attrs was used during render then the warning for failed attrs
|
|
// fallthrough can be suppressed.
|
|
let accessedAttrs = false;
|
|
function markAttrsAccessed() {
|
|
accessedAttrs = true;
|
|
}
|
|
function renderComponentRoot(instance) {
|
|
const { type: Component, vnode, proxy, withProxy, props, propsOptions: [propsOptions], slots, attrs, emit, render, renderCache, data, setupState, ctx } = instance;
|
|
let result;
|
|
currentRenderingInstance = instance;
|
|
{
|
|
accessedAttrs = false;
|
|
}
|
|
try {
|
|
let fallthroughAttrs;
|
|
if (vnode.shapeFlag & 4 /* STATEFUL_COMPONENT */) {
|
|
// withProxy is a proxy with a different `has` trap only for
|
|
// runtime-compiled render functions using `with` block.
|
|
const proxyToUse = withProxy || proxy;
|
|
result = normalizeVNode(render.call(proxyToUse, proxyToUse, renderCache, props, setupState, data, ctx));
|
|
fallthroughAttrs = attrs;
|
|
}
|
|
else {
|
|
// functional
|
|
const render = Component;
|
|
// in dev, mark attrs accessed if optional props (attrs === props)
|
|
if (true && attrs === props) {
|
|
markAttrsAccessed();
|
|
}
|
|
result = normalizeVNode(render.length > 1
|
|
? render(props, true
|
|
? {
|
|
get attrs() {
|
|
markAttrsAccessed();
|
|
return attrs;
|
|
},
|
|
slots,
|
|
emit
|
|
}
|
|
: { attrs, slots, emit })
|
|
: render(props, null /* we know it doesn't need it */));
|
|
fallthroughAttrs = Component.props
|
|
? attrs
|
|
: getFunctionalFallthrough(attrs);
|
|
}
|
|
// attr merging
|
|
// in dev mode, comments are preserved, and it's possible for a template
|
|
// to have comments along side the root element which makes it a fragment
|
|
let root = result;
|
|
let setRoot = undefined;
|
|
if (true) {
|
|
;
|
|
[root, setRoot] = getChildRoot(result);
|
|
}
|
|
if (Component.inheritAttrs !== false && fallthroughAttrs) {
|
|
const keys = Object.keys(fallthroughAttrs);
|
|
const { shapeFlag } = root;
|
|
if (keys.length) {
|
|
if (shapeFlag & 1 /* ELEMENT */ ||
|
|
shapeFlag & 6 /* COMPONENT */) {
|
|
if (propsOptions && keys.some(isModelListener)) {
|
|
// If a v-model listener (onUpdate:xxx) has a corresponding declared
|
|
// prop, it indicates this component expects to handle v-model and
|
|
// it should not fallthrough.
|
|
// related: #1543, #1643, #1989
|
|
fallthroughAttrs = filterModelListeners(fallthroughAttrs, propsOptions);
|
|
}
|
|
root = cloneVNode(root, fallthroughAttrs);
|
|
}
|
|
else if (true && !accessedAttrs && root.type !== Comment) {
|
|
const allAttrs = Object.keys(attrs);
|
|
const eventAttrs = [];
|
|
const extraAttrs = [];
|
|
for (let i = 0, l = allAttrs.length; i < l; i++) {
|
|
const key = allAttrs[i];
|
|
if (isOn(key)) {
|
|
// ignore v-model handlers when they fail to fallthrough
|
|
if (!isModelListener(key)) {
|
|
// remove `on`, lowercase first letter to reflect event casing
|
|
// accurately
|
|
eventAttrs.push(key[2].toLowerCase() + key.slice(3));
|
|
}
|
|
}
|
|
else {
|
|
extraAttrs.push(key);
|
|
}
|
|
}
|
|
if (extraAttrs.length) {
|
|
warn(`Extraneous non-props attributes (` +
|
|
`${extraAttrs.join(', ')}) ` +
|
|
`were passed to component but could not be automatically inherited ` +
|
|
`because component renders fragment or text root nodes.`);
|
|
}
|
|
if (eventAttrs.length) {
|
|
warn(`Extraneous non-emits event listeners (` +
|
|
`${eventAttrs.join(', ')}) ` +
|
|
`were passed to component but could not be automatically inherited ` +
|
|
`because component renders fragment or text root nodes. ` +
|
|
`If the listener is intended to be a component custom event listener only, ` +
|
|
`declare it using the "emits" option.`);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
// inherit directives
|
|
if (vnode.dirs) {
|
|
if (true && !isElementRoot(root)) {
|
|
warn(`Runtime directive used on component with non-element root node. ` +
|
|
`The directives will not function as intended.`);
|
|
}
|
|
root.dirs = root.dirs ? root.dirs.concat(vnode.dirs) : vnode.dirs;
|
|
}
|
|
// inherit transition data
|
|
if (vnode.transition) {
|
|
if (true && !isElementRoot(root)) {
|
|
warn(`Component inside <Transition> renders non-element root node ` +
|
|
`that cannot be animated.`);
|
|
}
|
|
root.transition = vnode.transition;
|
|
}
|
|
if (true && setRoot) {
|
|
setRoot(root);
|
|
}
|
|
else {
|
|
result = root;
|
|
}
|
|
}
|
|
catch (err) {
|
|
handleError(err, instance, 1 /* RENDER_FUNCTION */);
|
|
result = createVNode(Comment);
|
|
}
|
|
currentRenderingInstance = null;
|
|
return result;
|
|
}
|
|
/**
|
|
* dev only
|
|
* In dev mode, template root level comments are rendered, which turns the
|
|
* template into a fragment root, but we need to locate the single element
|
|
* root for attrs and scope id processing.
|
|
*/
|
|
const getChildRoot = (vnode) => {
|
|
if (vnode.type !== Fragment) {
|
|
return [vnode, undefined];
|
|
}
|
|
const rawChildren = vnode.children;
|
|
const dynamicChildren = vnode.dynamicChildren;
|
|
const childRoot = filterSingleRoot(rawChildren);
|
|
if (!childRoot) {
|
|
return [vnode, undefined];
|
|
}
|
|
const index = rawChildren.indexOf(childRoot);
|
|
const dynamicIndex = dynamicChildren ? dynamicChildren.indexOf(childRoot) : -1;
|
|
const setRoot = (updatedRoot) => {
|
|
rawChildren[index] = updatedRoot;
|
|
if (dynamicChildren) {
|
|
if (dynamicIndex > -1) {
|
|
dynamicChildren[dynamicIndex] = updatedRoot;
|
|
}
|
|
else if (updatedRoot.patchFlag > 0) {
|
|
vnode.dynamicChildren = [...dynamicChildren, updatedRoot];
|
|
}
|
|
}
|
|
};
|
|
return [normalizeVNode(childRoot), setRoot];
|
|
};
|
|
/**
|
|
* dev only
|
|
*/
|
|
function filterSingleRoot(children) {
|
|
const filtered = children.filter(child => {
|
|
return !(isVNode(child) &&
|
|
child.type === Comment &&
|
|
child.children !== 'v-if');
|
|
});
|
|
return filtered.length === 1 && isVNode(filtered[0]) ? filtered[0] : null;
|
|
}
|
|
const getFunctionalFallthrough = (attrs) => {
|
|
let res;
|
|
for (const key in attrs) {
|
|
if (key === 'class' || key === 'style' || isOn(key)) {
|
|
(res || (res = {}))[key] = attrs[key];
|
|
}
|
|
}
|
|
return res;
|
|
};
|
|
const filterModelListeners = (attrs, props) => {
|
|
const res = {};
|
|
for (const key in attrs) {
|
|
if (!isModelListener(key) || !(key.slice(9) in props)) {
|
|
res[key] = attrs[key];
|
|
}
|
|
}
|
|
return res;
|
|
};
|
|
const isElementRoot = (vnode) => {
|
|
return (vnode.shapeFlag & 6 /* COMPONENT */ ||
|
|
vnode.shapeFlag & 1 /* ELEMENT */ ||
|
|
vnode.type === Comment // potential v-if branch switch
|
|
);
|
|
};
|
|
function shouldUpdateComponent(prevVNode, nextVNode, optimized) {
|
|
const { props: prevProps, children: prevChildren, component } = prevVNode;
|
|
const { props: nextProps, children: nextChildren, patchFlag } = nextVNode;
|
|
const emits = component.emitsOptions;
|
|
// Parent component's render function was hot-updated. Since this may have
|
|
// caused the child component's slots content to have changed, we need to
|
|
// force the child to update as well.
|
|
if ( (prevChildren || nextChildren) && isHmrUpdating) {
|
|
return true;
|
|
}
|
|
// force child update for runtime directive or transition on component vnode.
|
|
if (nextVNode.dirs || nextVNode.transition) {
|
|
return true;
|
|
}
|
|
if (optimized && patchFlag > 0) {
|
|
if (patchFlag & 1024 /* DYNAMIC_SLOTS */) {
|
|
// slot content that references values that might have changed,
|
|
// e.g. in a v-for
|
|
return true;
|
|
}
|
|
if (patchFlag & 16 /* FULL_PROPS */) {
|
|
if (!prevProps) {
|
|
return !!nextProps;
|
|
}
|
|
// presence of this flag indicates props are always non-null
|
|
return hasPropsChanged(prevProps, nextProps, emits);
|
|
}
|
|
else if (patchFlag & 8 /* PROPS */) {
|
|
const dynamicProps = nextVNode.dynamicProps;
|
|
for (let i = 0; i < dynamicProps.length; i++) {
|
|
const key = dynamicProps[i];
|
|
if (nextProps[key] !== prevProps[key] &&
|
|
!isEmitListener(emits, key)) {
|
|
return true;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
else {
|
|
// this path is only taken by manually written render functions
|
|
// so presence of any children leads to a forced update
|
|
if (prevChildren || nextChildren) {
|
|
if (!nextChildren || !nextChildren.$stable) {
|
|
return true;
|
|
}
|
|
}
|
|
if (prevProps === nextProps) {
|
|
return false;
|
|
}
|
|
if (!prevProps) {
|
|
return !!nextProps;
|
|
}
|
|
if (!nextProps) {
|
|
return true;
|
|
}
|
|
return hasPropsChanged(prevProps, nextProps, emits);
|
|
}
|
|
return false;
|
|
}
|
|
function hasPropsChanged(prevProps, nextProps, emitsOptions) {
|
|
const nextKeys = Object.keys(nextProps);
|
|
if (nextKeys.length !== Object.keys(prevProps).length) {
|
|
return true;
|
|
}
|
|
for (let i = 0; i < nextKeys.length; i++) {
|
|
const key = nextKeys[i];
|
|
if (nextProps[key] !== prevProps[key] &&
|
|
!isEmitListener(emitsOptions, key)) {
|
|
return true;
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
function updateHOCHostEl({ vnode, parent }, el // HostNode
|
|
) {
|
|
while (parent && parent.subTree === vnode) {
|
|
(vnode = parent.vnode).el = el;
|
|
parent = parent.parent;
|
|
}
|
|
}
|
|
|
|
const isSuspense = (type) => type.__isSuspense;
|
|
// Suspense exposes a component-like API, and is treated like a component
|
|
// in the compiler, but internally it's a special built-in type that hooks
|
|
// directly into the renderer.
|
|
const SuspenseImpl = {
|
|
// In order to make Suspense tree-shakable, we need to avoid importing it
|
|
// directly in the renderer. The renderer checks for the __isSuspense flag
|
|
// on a vnode's type and calls the `process` method, passing in renderer
|
|
// internals.
|
|
__isSuspense: true,
|
|
process(n1, n2, container, anchor, parentComponent, parentSuspense, isSVG, optimized,
|
|
// platform-specific impl passed from renderer
|
|
rendererInternals) {
|
|
if (n1 == null) {
|
|
mountSuspense(n2, container, anchor, parentComponent, parentSuspense, isSVG, optimized, rendererInternals);
|
|
}
|
|
else {
|
|
patchSuspense(n1, n2, container, anchor, parentComponent, isSVG, rendererInternals);
|
|
}
|
|
},
|
|
hydrate: hydrateSuspense,
|
|
create: createSuspenseBoundary
|
|
};
|
|
// Force-casted public typing for h and TSX props inference
|
|
const Suspense = ( SuspenseImpl
|
|
);
|
|
function mountSuspense(vnode, container, anchor, parentComponent, parentSuspense, isSVG, optimized, rendererInternals) {
|
|
const { p: patch, o: { createElement } } = rendererInternals;
|
|
const hiddenContainer = createElement('div');
|
|
const suspense = (vnode.suspense = createSuspenseBoundary(vnode, parentSuspense, parentComponent, container, hiddenContainer, anchor, isSVG, optimized, rendererInternals));
|
|
// start mounting the content subtree in an off-dom container
|
|
patch(null, (suspense.pendingBranch = vnode.ssContent), hiddenContainer, null, parentComponent, suspense, isSVG);
|
|
// now check if we have encountered any async deps
|
|
if (suspense.deps > 0) {
|
|
// has async
|
|
// mount the fallback tree
|
|
patch(null, vnode.ssFallback, container, anchor, parentComponent, null, // fallback tree will not have suspense context
|
|
isSVG);
|
|
setActiveBranch(suspense, vnode.ssFallback);
|
|
}
|
|
else {
|
|
// Suspense has no async deps. Just resolve.
|
|
suspense.resolve();
|
|
}
|
|
}
|
|
function patchSuspense(n1, n2, container, anchor, parentComponent, isSVG, { p: patch, um: unmount, o: { createElement } }) {
|
|
const suspense = (n2.suspense = n1.suspense);
|
|
suspense.vnode = n2;
|
|
n2.el = n1.el;
|
|
const newBranch = n2.ssContent;
|
|
const newFallback = n2.ssFallback;
|
|
const { activeBranch, pendingBranch, isInFallback, isHydrating } = suspense;
|
|
if (pendingBranch) {
|
|
suspense.pendingBranch = newBranch;
|
|
if (isSameVNodeType(newBranch, pendingBranch)) {
|
|
// same root type but content may have changed.
|
|
patch(pendingBranch, newBranch, suspense.hiddenContainer, null, parentComponent, suspense, isSVG);
|
|
if (suspense.deps <= 0) {
|
|
suspense.resolve();
|
|
}
|
|
else if (isInFallback) {
|
|
patch(activeBranch, newFallback, container, anchor, parentComponent, null, // fallback tree will not have suspense context
|
|
isSVG);
|
|
setActiveBranch(suspense, newFallback);
|
|
}
|
|
}
|
|
else {
|
|
// toggled before pending tree is resolved
|
|
suspense.pendingId++;
|
|
if (isHydrating) {
|
|
// if toggled before hydration is finished, the current DOM tree is
|
|
// no longer valid. set it as the active branch so it will be unmounted
|
|
// when resolved
|
|
suspense.isHydrating = false;
|
|
suspense.activeBranch = pendingBranch;
|
|
}
|
|
else {
|
|
unmount(pendingBranch, parentComponent, suspense);
|
|
}
|
|
// increment pending ID. this is used to invalidate async callbacks
|
|
// reset suspense state
|
|
suspense.deps = 0;
|
|
// discard effects from pending branch
|
|
suspense.effects.length = 0;
|
|
// discard previous container
|
|
suspense.hiddenContainer = createElement('div');
|
|
if (isInFallback) {
|
|
// already in fallback state
|
|
patch(null, newBranch, suspense.hiddenContainer, null, parentComponent, suspense, isSVG);
|
|
if (suspense.deps <= 0) {
|
|
suspense.resolve();
|
|
}
|
|
else {
|
|
patch(activeBranch, newFallback, container, anchor, parentComponent, null, // fallback tree will not have suspense context
|
|
isSVG);
|
|
setActiveBranch(suspense, newFallback);
|
|
}
|
|
}
|
|
else if (activeBranch && isSameVNodeType(newBranch, activeBranch)) {
|
|
// toggled "back" to current active branch
|
|
patch(activeBranch, newBranch, container, anchor, parentComponent, suspense, isSVG);
|
|
// force resolve
|
|
suspense.resolve(true);
|
|
}
|
|
else {
|
|
// switched to a 3rd branch
|
|
patch(null, newBranch, suspense.hiddenContainer, null, parentComponent, suspense, isSVG);
|
|
if (suspense.deps <= 0) {
|
|
suspense.resolve();
|
|
}
|
|
}
|
|
}
|
|
}
|
|
else {
|
|
if (activeBranch && isSameVNodeType(newBranch, activeBranch)) {
|
|
// root did not change, just normal patch
|
|
patch(activeBranch, newBranch, container, anchor, parentComponent, suspense, isSVG);
|
|
setActiveBranch(suspense, newBranch);
|
|
}
|
|
else {
|
|
// root node toggled
|
|
// invoke @pending event
|
|
const onPending = n2.props && n2.props.onPending;
|
|
if (isFunction(onPending)) {
|
|
onPending();
|
|
}
|
|
// mount pending branch in off-dom container
|
|
suspense.pendingBranch = newBranch;
|
|
suspense.pendingId++;
|
|
patch(null, newBranch, suspense.hiddenContainer, null, parentComponent, suspense, isSVG);
|
|
if (suspense.deps <= 0) {
|
|
// incoming branch has no async deps, resolve now.
|
|
suspense.resolve();
|
|
}
|
|
else {
|
|
const { timeout, pendingId } = suspense;
|
|
if (timeout > 0) {
|
|
setTimeout(() => {
|
|
if (suspense.pendingId === pendingId) {
|
|
suspense.fallback(newFallback);
|
|
}
|
|
}, timeout);
|
|
}
|
|
else if (timeout === 0) {
|
|
suspense.fallback(newFallback);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
let hasWarned = false;
|
|
function createSuspenseBoundary(vnode, parent, parentComponent, container, hiddenContainer, anchor, isSVG, optimized, rendererInternals, isHydrating = false) {
|
|
/* istanbul ignore if */
|
|
if ( !hasWarned) {
|
|
hasWarned = true;
|
|
// @ts-ignore `console.info` cannot be null error
|
|
console[console.info ? 'info' : 'log'](`<Suspense> is an experimental feature and its API will likely change.`);
|
|
}
|
|
const { p: patch, m: move, um: unmount, n: next, o: { parentNode, remove } } = rendererInternals;
|
|
const timeout = toNumber(vnode.props && vnode.props.timeout);
|
|
const suspense = {
|
|
vnode,
|
|
parent,
|
|
parentComponent,
|
|
isSVG,
|
|
container,
|
|
hiddenContainer,
|
|
anchor,
|
|
deps: 0,
|
|
pendingId: 0,
|
|
timeout: typeof timeout === 'number' ? timeout : -1,
|
|
activeBranch: null,
|
|
pendingBranch: null,
|
|
isInFallback: true,
|
|
isHydrating,
|
|
isUnmounted: false,
|
|
effects: [],
|
|
resolve(resume = false) {
|
|
{
|
|
if (!resume && !suspense.pendingBranch) {
|
|
throw new Error(`suspense.resolve() is called without a pending branch.`);
|
|
}
|
|
if (suspense.isUnmounted) {
|
|
throw new Error(`suspense.resolve() is called on an already unmounted suspense boundary.`);
|
|
}
|
|
}
|
|
const { vnode, activeBranch, pendingBranch, pendingId, effects, parentComponent, container } = suspense;
|
|
if (suspense.isHydrating) {
|
|
suspense.isHydrating = false;
|
|
}
|
|
else if (!resume) {
|
|
const delayEnter = activeBranch &&
|
|
pendingBranch.transition &&
|
|
pendingBranch.transition.mode === 'out-in';
|
|
if (delayEnter) {
|
|
activeBranch.transition.afterLeave = () => {
|
|
if (pendingId === suspense.pendingId) {
|
|
move(pendingBranch, container, anchor, 0 /* ENTER */);
|
|
}
|
|
};
|
|
}
|
|
// this is initial anchor on mount
|
|
let { anchor } = suspense;
|
|
// unmount current active tree
|
|
if (activeBranch) {
|
|
// if the fallback tree was mounted, it may have been moved
|
|
// as part of a parent suspense. get the latest anchor for insertion
|
|
anchor = next(activeBranch);
|
|
unmount(activeBranch, parentComponent, suspense, true);
|
|
}
|
|
if (!delayEnter) {
|
|
// move content from off-dom container to actual container
|
|
move(pendingBranch, container, anchor, 0 /* ENTER */);
|
|
}
|
|
}
|
|
setActiveBranch(suspense, pendingBranch);
|
|
suspense.pendingBranch = null;
|
|
suspense.isInFallback = false;
|
|
// flush buffered effects
|
|
// check if there is a pending parent suspense
|
|
let parent = suspense.parent;
|
|
let hasUnresolvedAncestor = false;
|
|
while (parent) {
|
|
if (parent.pendingBranch) {
|
|
// found a pending parent suspense, merge buffered post jobs
|
|
// into that parent
|
|
parent.effects.push(...effects);
|
|
hasUnresolvedAncestor = true;
|
|
break;
|
|
}
|
|
parent = parent.parent;
|
|
}
|
|
// no pending parent suspense, flush all jobs
|
|
if (!hasUnresolvedAncestor) {
|
|
queuePostFlushCb(effects);
|
|
}
|
|
suspense.effects = [];
|
|
// invoke @resolve event
|
|
const onResolve = vnode.props && vnode.props.onResolve;
|
|
if (isFunction(onResolve)) {
|
|
onResolve();
|
|
}
|
|
},
|
|
fallback(fallbackVNode) {
|
|
if (!suspense.pendingBranch) {
|
|
return;
|
|
}
|
|
const { vnode, activeBranch, parentComponent, container, isSVG } = suspense;
|
|
// invoke @fallback event
|
|
const onFallback = vnode.props && vnode.props.onFallback;
|
|
if (isFunction(onFallback)) {
|
|
onFallback();
|
|
}
|
|
const anchor = next(activeBranch);
|
|
const mountFallback = () => {
|
|
if (!suspense.isInFallback) {
|
|
return;
|
|
}
|
|
// mount the fallback tree
|
|
patch(null, fallbackVNode, container, anchor, parentComponent, null, // fallback tree will not have suspense context
|
|
isSVG);
|
|
setActiveBranch(suspense, fallbackVNode);
|
|
};
|
|
const delayEnter = fallbackVNode.transition && fallbackVNode.transition.mode === 'out-in';
|
|
if (delayEnter) {
|
|
activeBranch.transition.afterLeave = mountFallback;
|
|
}
|
|
// unmount current active branch
|
|
unmount(activeBranch, parentComponent, null, // no suspense so unmount hooks fire now
|
|
true // shouldRemove
|
|
);
|
|
suspense.isInFallback = true;
|
|
if (!delayEnter) {
|
|
mountFallback();
|
|
}
|
|
},
|
|
move(container, anchor, type) {
|
|
suspense.activeBranch &&
|
|
move(suspense.activeBranch, container, anchor, type);
|
|
suspense.container = container;
|
|
},
|
|
next() {
|
|
return suspense.activeBranch && next(suspense.activeBranch);
|
|
},
|
|
registerDep(instance, setupRenderEffect) {
|
|
if (!suspense.pendingBranch) {
|
|
return;
|
|
}
|
|
const hydratedEl = instance.vnode.el;
|
|
suspense.deps++;
|
|
instance
|
|
.asyncDep.catch(err => {
|
|
handleError(err, instance, 0 /* SETUP_FUNCTION */);
|
|
})
|
|
.then(asyncSetupResult => {
|
|
// retry when the setup() promise resolves.
|
|
// component may have been unmounted before resolve.
|
|
if (instance.isUnmounted ||
|
|
suspense.isUnmounted ||
|
|
suspense.pendingId !== instance.suspenseId) {
|
|
return;
|
|
}
|
|
suspense.deps--;
|
|
// retry from this component
|
|
instance.asyncResolved = true;
|
|
const { vnode } = instance;
|
|
{
|
|
pushWarningContext(vnode);
|
|
}
|
|
handleSetupResult(instance, asyncSetupResult);
|
|
if (hydratedEl) {
|
|
// vnode may have been replaced if an update happened before the
|
|
// async dep is resolved.
|
|
vnode.el = hydratedEl;
|
|
}
|
|
const placeholder = !hydratedEl && instance.subTree.el;
|
|
setupRenderEffect(instance, vnode,
|
|
// component may have been moved before resolve.
|
|
// if this is not a hydration, instance.subTree will be the comment
|
|
// placeholder.
|
|
parentNode(hydratedEl || instance.subTree.el),
|
|
// anchor will not be used if this is hydration, so only need to
|
|
// consider the comment placeholder case.
|
|
hydratedEl ? null : next(instance.subTree), suspense, isSVG, optimized);
|
|
if (placeholder) {
|
|
remove(placeholder);
|
|
}
|
|
updateHOCHostEl(instance, vnode.el);
|
|
{
|
|
popWarningContext();
|
|
}
|
|
if (suspense.deps === 0) {
|
|
suspense.resolve();
|
|
}
|
|
});
|
|
},
|
|
unmount(parentSuspense, doRemove) {
|
|
suspense.isUnmounted = true;
|
|
if (suspense.activeBranch) {
|
|
unmount(suspense.activeBranch, parentComponent, parentSuspense, doRemove);
|
|
}
|
|
if (suspense.pendingBranch) {
|
|
unmount(suspense.pendingBranch, parentComponent, parentSuspense, doRemove);
|
|
}
|
|
}
|
|
};
|
|
return suspense;
|
|
}
|
|
function hydrateSuspense(node, vnode, parentComponent, parentSuspense, isSVG, optimized, rendererInternals, hydrateNode) {
|
|
/* eslint-disable no-restricted-globals */
|
|
const suspense = (vnode.suspense = createSuspenseBoundary(vnode, parentSuspense, parentComponent, node.parentNode, document.createElement('div'), null, isSVG, optimized, rendererInternals, true /* hydrating */));
|
|
// there are two possible scenarios for server-rendered suspense:
|
|
// - success: ssr content should be fully resolved
|
|
// - failure: ssr content should be the fallback branch.
|
|
// however, on the client we don't really know if it has failed or not
|
|
// attempt to hydrate the DOM assuming it has succeeded, but we still
|
|
// need to construct a suspense boundary first
|
|
const result = hydrateNode(node, (suspense.pendingBranch = vnode.ssContent), parentComponent, suspense, optimized);
|
|
if (suspense.deps === 0) {
|
|
suspense.resolve();
|
|
}
|
|
return result;
|
|
/* eslint-enable no-restricted-globals */
|
|
}
|
|
function normalizeSuspenseChildren(vnode) {
|
|
const { shapeFlag, children } = vnode;
|
|
let content;
|
|
let fallback;
|
|
if (shapeFlag & 32 /* SLOTS_CHILDREN */) {
|
|
content = normalizeSuspenseSlot(children.default);
|
|
fallback = normalizeSuspenseSlot(children.fallback);
|
|
}
|
|
else {
|
|
content = normalizeSuspenseSlot(children);
|
|
fallback = normalizeVNode(null);
|
|
}
|
|
return {
|
|
content,
|
|
fallback
|
|
};
|
|
}
|
|
function normalizeSuspenseSlot(s) {
|
|
if (isFunction(s)) {
|
|
s = s();
|
|
}
|
|
if (isArray(s)) {
|
|
const singleChild = filterSingleRoot(s);
|
|
if ( !singleChild) {
|
|
warn(`<Suspense> slots expect a single root node.`);
|
|
}
|
|
s = singleChild;
|
|
}
|
|
return normalizeVNode(s);
|
|
}
|
|
function queueEffectWithSuspense(fn, suspense) {
|
|
if (suspense && suspense.pendingBranch) {
|
|
if (isArray(fn)) {
|
|
suspense.effects.push(...fn);
|
|
}
|
|
else {
|
|
suspense.effects.push(fn);
|
|
}
|
|
}
|
|
else {
|
|
queuePostFlushCb(fn);
|
|
}
|
|
}
|
|
function setActiveBranch(suspense, branch) {
|
|
suspense.activeBranch = branch;
|
|
const { vnode, parentComponent } = suspense;
|
|
const el = (vnode.el = branch.el);
|
|
// in case suspense is the root node of a component,
|
|
// recursively update the HOC el
|
|
if (parentComponent && parentComponent.subTree === vnode) {
|
|
parentComponent.vnode.el = el;
|
|
updateHOCHostEl(parentComponent, el);
|
|
}
|
|
}
|
|
|
|
let isRenderingCompiledSlot = 0;
|
|
const setCompiledSlotRendering = (n) => (isRenderingCompiledSlot += n);
|
|
/**
|
|
* Compiler runtime helper for rendering `<slot/>`
|
|
* @private
|
|
*/
|
|
function renderSlot(slots, name, props = {},
|
|
// this is not a user-facing function, so the fallback is always generated by
|
|
// the compiler and guaranteed to be a function returning an array
|
|
fallback) {
|
|
let slot = slots[name];
|
|
if ( slot && slot.length > 1) {
|
|
warn(`SSR-optimized slot function detected in a non-SSR-optimized render ` +
|
|
`function. You need to mark this component with $dynamic-slots in the ` +
|
|
`parent template.`);
|
|
slot = () => [];
|
|
}
|
|
// a compiled slot disables block tracking by default to avoid manual
|
|
// invocation interfering with template-based block tracking, but in
|
|
// `renderSlot` we can be sure that it's template-based so we can force
|
|
// enable it.
|
|
isRenderingCompiledSlot++;
|
|
const rendered = (openBlock(),
|
|
createBlock(Fragment, { key: props.key }, slot ? slot(props) : fallback ? fallback() : [], slots._ === 1 /* STABLE */
|
|
? 64 /* STABLE_FRAGMENT */
|
|
: -2 /* BAIL */));
|
|
isRenderingCompiledSlot--;
|
|
return rendered;
|
|
}
|
|
|
|
/**
|
|
* Wrap a slot function to memoize current rendering instance
|
|
* @private
|
|
*/
|
|
function withCtx(fn, ctx = currentRenderingInstance) {
|
|
if (!ctx)
|
|
return fn;
|
|
const renderFnWithContext = (...args) => {
|
|
// If a user calls a compiled slot inside a template expression (#1745), it
|
|
// can mess up block tracking, so by default we need to push a null block to
|
|
// avoid that. This isn't necessary if rendering a compiled `<slot>`.
|
|
if (!isRenderingCompiledSlot) {
|
|
openBlock(true /* null block that disables tracking */);
|
|
}
|
|
const owner = currentRenderingInstance;
|
|
setCurrentRenderingInstance(ctx);
|
|
const res = fn(...args);
|
|
setCurrentRenderingInstance(owner);
|
|
if (!isRenderingCompiledSlot) {
|
|
closeBlock();
|
|
}
|
|
return res;
|
|
};
|
|
renderFnWithContext._c = true;
|
|
return renderFnWithContext;
|
|
}
|
|
|
|
// SFC scoped style ID management.
|
|
let currentScopeId = null;
|
|
const scopeIdStack = [];
|
|
/**
|
|
* @private
|
|
*/
|
|
function pushScopeId(id) {
|
|
scopeIdStack.push((currentScopeId = id));
|
|
}
|
|
/**
|
|
* @private
|
|
*/
|
|
function popScopeId() {
|
|
scopeIdStack.pop();
|
|
currentScopeId = scopeIdStack[scopeIdStack.length - 1] || null;
|
|
}
|
|
/**
|
|
* @private
|
|
*/
|
|
function withScopeId(id) {
|
|
return ((fn) => withCtx(function () {
|
|
pushScopeId(id);
|
|
const res = fn.apply(this, arguments);
|
|
popScopeId();
|
|
return res;
|
|
}));
|
|
}
|
|
|
|
function initProps(instance, rawProps, isStateful, // result of bitwise flag comparison
|
|
isSSR = false) {
|
|
const props = {};
|
|
const attrs = {};
|
|
def(attrs, InternalObjectKey, 1);
|
|
setFullProps(instance, rawProps, props, attrs);
|
|
// validation
|
|
{
|
|
validateProps(props, instance);
|
|
}
|
|
if (isStateful) {
|
|
// stateful
|
|
instance.props = isSSR ? props : shallowReactive(props);
|
|
}
|
|
else {
|
|
if (!instance.type.props) {
|
|
// functional w/ optional props, props === attrs
|
|
instance.props = attrs;
|
|
}
|
|
else {
|
|
// functional w/ declared props
|
|
instance.props = props;
|
|
}
|
|
}
|
|
instance.attrs = attrs;
|
|
}
|
|
function updateProps(instance, rawProps, rawPrevProps, optimized) {
|
|
const { props, attrs, vnode: { patchFlag } } = instance;
|
|
const rawCurrentProps = toRaw(props);
|
|
const [options] = instance.propsOptions;
|
|
if (
|
|
// always force full diff in dev
|
|
// - #1942 if hmr is enabled with sfc component
|
|
// - vite#872 non-sfc component used by sfc component
|
|
!(
|
|
(instance.type.__hmrId ||
|
|
(instance.parent && instance.parent.type.__hmrId))) &&
|
|
(optimized || patchFlag > 0) &&
|
|
!(patchFlag & 16 /* FULL_PROPS */)) {
|
|
if (patchFlag & 8 /* PROPS */) {
|
|
// Compiler-generated props & no keys change, just set the updated
|
|
// the props.
|
|
const propsToUpdate = instance.vnode.dynamicProps;
|
|
for (let i = 0; i < propsToUpdate.length; i++) {
|
|
const key = propsToUpdate[i];
|
|
// PROPS flag guarantees rawProps to be non-null
|
|
const value = rawProps[key];
|
|
if (options) {
|
|
// attr / props separation was done on init and will be consistent
|
|
// in this code path, so just check if attrs have it.
|
|
if (hasOwn(attrs, key)) {
|
|
attrs[key] = value;
|
|
}
|
|
else {
|
|
const camelizedKey = camelize(key);
|
|
props[camelizedKey] = resolvePropValue(options, rawCurrentProps, camelizedKey, value, instance);
|
|
}
|
|
}
|
|
else {
|
|
attrs[key] = value;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
else {
|
|
// full props update.
|
|
setFullProps(instance, rawProps, props, attrs);
|
|
// in case of dynamic props, check if we need to delete keys from
|
|
// the props object
|
|
let kebabKey;
|
|
for (const key in rawCurrentProps) {
|
|
if (!rawProps ||
|
|
// for camelCase
|
|
(!hasOwn(rawProps, key) &&
|
|
// it's possible the original props was passed in as kebab-case
|
|
// and converted to camelCase (#955)
|
|
((kebabKey = hyphenate(key)) === key || !hasOwn(rawProps, kebabKey)))) {
|
|
if (options) {
|
|
if (rawPrevProps &&
|
|
// for camelCase
|
|
(rawPrevProps[key] !== undefined ||
|
|
// for kebab-case
|
|
rawPrevProps[kebabKey] !== undefined)) {
|
|
props[key] = resolvePropValue(options, rawProps || EMPTY_OBJ, key, undefined, instance);
|
|
}
|
|
}
|
|
else {
|
|
delete props[key];
|
|
}
|
|
}
|
|
}
|
|
// in the case of functional component w/o props declaration, props and
|
|
// attrs point to the same object so it should already have been updated.
|
|
if (attrs !== rawCurrentProps) {
|
|
for (const key in attrs) {
|
|
if (!rawProps || !hasOwn(rawProps, key)) {
|
|
delete attrs[key];
|
|
}
|
|
}
|
|
}
|
|
}
|
|
// trigger updates for $attrs in case it's used in component slots
|
|
trigger(instance, "set" /* SET */, '$attrs');
|
|
if ( rawProps) {
|
|
validateProps(props, instance);
|
|
}
|
|
}
|
|
function setFullProps(instance, rawProps, props, attrs) {
|
|
const [options, needCastKeys] = instance.propsOptions;
|
|
if (rawProps) {
|
|
for (const key in rawProps) {
|
|
const value = rawProps[key];
|
|
// key, ref are reserved and never passed down
|
|
if (isReservedProp(key)) {
|
|
continue;
|
|
}
|
|
// prop option names are camelized during normalization, so to support
|
|
// kebab -> camel conversion here we need to camelize the key.
|
|
let camelKey;
|
|
if (options && hasOwn(options, (camelKey = camelize(key)))) {
|
|
props[camelKey] = value;
|
|
}
|
|
else if (!isEmitListener(instance.emitsOptions, key)) {
|
|
// Any non-declared (either as a prop or an emitted event) props are put
|
|
// into a separate `attrs` object for spreading. Make sure to preserve
|
|
// original key casing
|
|
attrs[key] = value;
|
|
}
|
|
}
|
|
}
|
|
if (needCastKeys) {
|
|
const rawCurrentProps = toRaw(props);
|
|
for (let i = 0; i < needCastKeys.length; i++) {
|
|
const key = needCastKeys[i];
|
|
props[key] = resolvePropValue(options, rawCurrentProps, key, rawCurrentProps[key], instance);
|
|
}
|
|
}
|
|
}
|
|
function resolvePropValue(options, props, key, value, instance) {
|
|
const opt = options[key];
|
|
if (opt != null) {
|
|
const hasDefault = hasOwn(opt, 'default');
|
|
// default values
|
|
if (hasDefault && value === undefined) {
|
|
const defaultValue = opt.default;
|
|
if (opt.type !== Function && isFunction(defaultValue)) {
|
|
setCurrentInstance(instance);
|
|
value = defaultValue(props);
|
|
setCurrentInstance(null);
|
|
}
|
|
else {
|
|
value = defaultValue;
|
|
}
|
|
}
|
|
// boolean casting
|
|
if (opt[0 /* shouldCast */]) {
|
|
if (!hasOwn(props, key) && !hasDefault) {
|
|
value = false;
|
|
}
|
|
else if (opt[1 /* shouldCastTrue */] &&
|
|
(value === '' || value === hyphenate(key))) {
|
|
value = true;
|
|
}
|
|
}
|
|
}
|
|
return value;
|
|
}
|
|
function normalizePropsOptions(comp, appContext, asMixin = false) {
|
|
if (!appContext.deopt && comp.__props) {
|
|
return comp.__props;
|
|
}
|
|
const raw = comp.props;
|
|
const normalized = {};
|
|
const needCastKeys = [];
|
|
// apply mixin/extends props
|
|
let hasExtends = false;
|
|
if ( !isFunction(comp)) {
|
|
const extendProps = (raw) => {
|
|
hasExtends = true;
|
|
const [props, keys] = normalizePropsOptions(raw, appContext, true);
|
|
extend(normalized, props);
|
|
if (keys)
|
|
needCastKeys.push(...keys);
|
|
};
|
|
if (!asMixin && appContext.mixins.length) {
|
|
appContext.mixins.forEach(extendProps);
|
|
}
|
|
if (comp.extends) {
|
|
extendProps(comp.extends);
|
|
}
|
|
if (comp.mixins) {
|
|
comp.mixins.forEach(extendProps);
|
|
}
|
|
}
|
|
if (!raw && !hasExtends) {
|
|
return (comp.__props = EMPTY_ARR);
|
|
}
|
|
if (isArray(raw)) {
|
|
for (let i = 0; i < raw.length; i++) {
|
|
if ( !isString(raw[i])) {
|
|
warn(`props must be strings when using array syntax.`, raw[i]);
|
|
}
|
|
const normalizedKey = camelize(raw[i]);
|
|
if (validatePropName(normalizedKey)) {
|
|
normalized[normalizedKey] = EMPTY_OBJ;
|
|
}
|
|
}
|
|
}
|
|
else if (raw) {
|
|
if ( !isObject(raw)) {
|
|
warn(`invalid props options`, raw);
|
|
}
|
|
for (const key in raw) {
|
|
const normalizedKey = camelize(key);
|
|
if (validatePropName(normalizedKey)) {
|
|
const opt = raw[key];
|
|
const prop = (normalized[normalizedKey] =
|
|
isArray(opt) || isFunction(opt) ? { type: opt } : opt);
|
|
if (prop) {
|
|
const booleanIndex = getTypeIndex(Boolean, prop.type);
|
|
const stringIndex = getTypeIndex(String, prop.type);
|
|
prop[0 /* shouldCast */] = booleanIndex > -1;
|
|
prop[1 /* shouldCastTrue */] =
|
|
stringIndex < 0 || booleanIndex < stringIndex;
|
|
// if the prop needs boolean casting or default value
|
|
if (booleanIndex > -1 || hasOwn(prop, 'default')) {
|
|
needCastKeys.push(normalizedKey);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
return (comp.__props = [normalized, needCastKeys]);
|
|
}
|
|
function validatePropName(key) {
|
|
if (key[0] !== '$') {
|
|
return true;
|
|
}
|
|
else {
|
|
warn(`Invalid prop name: "${key}" is a reserved property.`);
|
|
}
|
|
return false;
|
|
}
|
|
// use function string name to check type constructors
|
|
// so that it works across vms / iframes.
|
|
function getType(ctor) {
|
|
const match = ctor && ctor.toString().match(/^\s*function (\w+)/);
|
|
return match ? match[1] : '';
|
|
}
|
|
function isSameType(a, b) {
|
|
return getType(a) === getType(b);
|
|
}
|
|
function getTypeIndex(type, expectedTypes) {
|
|
if (isArray(expectedTypes)) {
|
|
for (let i = 0, len = expectedTypes.length; i < len; i++) {
|
|
if (isSameType(expectedTypes[i], type)) {
|
|
return i;
|
|
}
|
|
}
|
|
}
|
|
else if (isFunction(expectedTypes)) {
|
|
return isSameType(expectedTypes, type) ? 0 : -1;
|
|
}
|
|
return -1;
|
|
}
|
|
/**
|
|
* dev only
|
|
*/
|
|
function validateProps(props, instance) {
|
|
const rawValues = toRaw(props);
|
|
const options = instance.propsOptions[0];
|
|
for (const key in options) {
|
|
let opt = options[key];
|
|
if (opt == null)
|
|
continue;
|
|
validateProp(key, rawValues[key], opt, !hasOwn(rawValues, key));
|
|
}
|
|
}
|
|
/**
|
|
* dev only
|
|
*/
|
|
function validateProp(name, value, prop, isAbsent) {
|
|
const { type, required, validator } = prop;
|
|
// required!
|
|
if (required && isAbsent) {
|
|
warn('Missing required prop: "' + name + '"');
|
|
return;
|
|
}
|
|
// missing but optional
|
|
if (value == null && !prop.required) {
|
|
return;
|
|
}
|
|
// type check
|
|
if (type != null && type !== true) {
|
|
let isValid = false;
|
|
const types = isArray(type) ? type : [type];
|
|
const expectedTypes = [];
|
|
// value is valid as long as one of the specified types match
|
|
for (let i = 0; i < types.length && !isValid; i++) {
|
|
const { valid, expectedType } = assertType(value, types[i]);
|
|
expectedTypes.push(expectedType || '');
|
|
isValid = valid;
|
|
}
|
|
if (!isValid) {
|
|
warn(getInvalidTypeMessage(name, value, expectedTypes));
|
|
return;
|
|
}
|
|
}
|
|
// custom validator
|
|
if (validator && !validator(value)) {
|
|
warn('Invalid prop: custom validator check failed for prop "' + name + '".');
|
|
}
|
|
}
|
|
const isSimpleType = /*#__PURE__*/ makeMap('String,Number,Boolean,Function,Symbol');
|
|
/**
|
|
* dev only
|
|
*/
|
|
function assertType(value, type) {
|
|
let valid;
|
|
const expectedType = getType(type);
|
|
if (isSimpleType(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 = isObject(value);
|
|
}
|
|
else if (expectedType === 'Array') {
|
|
valid = isArray(value);
|
|
}
|
|
else {
|
|
valid = value instanceof type;
|
|
}
|
|
return {
|
|
valid,
|
|
expectedType
|
|
};
|
|
}
|
|
/**
|
|
* dev only
|
|
*/
|
|
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);
|
|
const expectedValue = styleValue(value, expectedType);
|
|
const receivedValue = styleValue(value, receivedType);
|
|
// check if we need to specify expected value
|
|
if (expectedTypes.length === 1 &&
|
|
isExplicable(expectedType) &&
|
|
!isBoolean(expectedType, receivedType)) {
|
|
message += ` with value ${expectedValue}`;
|
|
}
|
|
message += `, got ${receivedType} `;
|
|
// check if we need to specify received value
|
|
if (isExplicable(receivedType)) {
|
|
message += `with value ${receivedValue}.`;
|
|
}
|
|
return message;
|
|
}
|
|
/**
|
|
* dev only
|
|
*/
|
|
function styleValue(value, type) {
|
|
if (type === 'String') {
|
|
return `"${value}"`;
|
|
}
|
|
else if (type === 'Number') {
|
|
return `${Number(value)}`;
|
|
}
|
|
else {
|
|
return `${value}`;
|
|
}
|
|
}
|
|
/**
|
|
* dev only
|
|
*/
|
|
function isExplicable(type) {
|
|
const explicitTypes = ['string', 'number', 'boolean'];
|
|
return explicitTypes.some(elem => type.toLowerCase() === elem);
|
|
}
|
|
/**
|
|
* dev only
|
|
*/
|
|
function isBoolean(...args) {
|
|
return args.some(elem => elem.toLowerCase() === 'boolean');
|
|
}
|
|
|
|
function injectHook(type, hook, target = currentInstance, prepend = false) {
|
|
if (target) {
|
|
const hooks = target[type] || (target[type] = []);
|
|
// cache the error handling wrapper for injected hooks so the same hook
|
|
// can be properly deduped by the scheduler. "__weh" stands for "with error
|
|
// handling".
|
|
const wrappedHook = hook.__weh ||
|
|
(hook.__weh = (...args) => {
|
|
if (target.isUnmounted) {
|
|
return;
|
|
}
|
|
// disable tracking inside all lifecycle hooks
|
|
// since they can potentially be called inside effects.
|
|
pauseTracking();
|
|
// Set currentInstance during hook invocation.
|
|
// This assumes the hook does not synchronously trigger other hooks, which
|
|
// can only be false when the user does something really funky.
|
|
setCurrentInstance(target);
|
|
const res = callWithAsyncErrorHandling(hook, target, type, args);
|
|
setCurrentInstance(null);
|
|
resetTracking();
|
|
return res;
|
|
});
|
|
if (prepend) {
|
|
hooks.unshift(wrappedHook);
|
|
}
|
|
else {
|
|
hooks.push(wrappedHook);
|
|
}
|
|
return wrappedHook;
|
|
}
|
|
else {
|
|
const apiName = toHandlerKey(ErrorTypeStrings[type].replace(/ hook$/, ''));
|
|
warn(`${apiName} is called when there is no active component instance to be ` +
|
|
`associated with. ` +
|
|
`Lifecycle injection APIs can only be used during execution of setup().` +
|
|
( ` If you are using async setup(), make sure to register lifecycle ` +
|
|
`hooks before the first await statement.`
|
|
));
|
|
}
|
|
}
|
|
const createHook = (lifecycle) => (hook, target = currentInstance) =>
|
|
// post-create lifecycle registrations are noops during SSR
|
|
!isInSSRComponentSetup && injectHook(lifecycle, hook, target);
|
|
const onBeforeMount = createHook("bm" /* BEFORE_MOUNT */);
|
|
const onMounted = createHook("m" /* MOUNTED */);
|
|
const onBeforeUpdate = createHook("bu" /* BEFORE_UPDATE */);
|
|
const onUpdated = createHook("u" /* UPDATED */);
|
|
const onBeforeUnmount = createHook("bum" /* BEFORE_UNMOUNT */);
|
|
const onUnmounted = createHook("um" /* UNMOUNTED */);
|
|
const onRenderTriggered = createHook("rtg" /* RENDER_TRIGGERED */);
|
|
const onRenderTracked = createHook("rtc" /* RENDER_TRACKED */);
|
|
const onErrorCaptured = (hook, target = currentInstance) => {
|
|
injectHook("ec" /* ERROR_CAPTURED */, hook, target);
|
|
};
|
|
|
|
// Simple effect.
|
|
function watchEffect(effect, options) {
|
|
return doWatch(effect, null, options);
|
|
}
|
|
// initial value for watchers to trigger on undefined initial values
|
|
const INITIAL_WATCHER_VALUE = {};
|
|
// implementation
|
|
function watch(source, cb, options) {
|
|
if ( !isFunction(cb)) {
|
|
warn(`\`watch(fn, options?)\` signature has been moved to a separate API. ` +
|
|
`Use \`watchEffect(fn, options?)\` instead. \`watch\` now only ` +
|
|
`supports \`watch(source, cb, options?) signature.`);
|
|
}
|
|
return doWatch(source, cb, options);
|
|
}
|
|
function doWatch(source, cb, { immediate, deep, flush, onTrack, onTrigger } = EMPTY_OBJ, instance = currentInstance) {
|
|
if ( !cb) {
|
|
if (immediate !== undefined) {
|
|
warn(`watch() "immediate" option is only respected when using the ` +
|
|
`watch(source, callback, options?) signature.`);
|
|
}
|
|
if (deep !== undefined) {
|
|
warn(`watch() "deep" option is only respected when using the ` +
|
|
`watch(source, callback, options?) signature.`);
|
|
}
|
|
}
|
|
const warnInvalidSource = (s) => {
|
|
warn(`Invalid watch source: `, s, `A watch source can only be a getter/effect function, a ref, ` +
|
|
`a reactive object, or an array of these types.`);
|
|
};
|
|
let getter;
|
|
let forceTrigger = false;
|
|
if (isRef(source)) {
|
|
getter = () => source.value;
|
|
forceTrigger = !!source._shallow;
|
|
}
|
|
else if (isReactive(source)) {
|
|
getter = () => source;
|
|
deep = true;
|
|
}
|
|
else if (isArray(source)) {
|
|
getter = () => source.map(s => {
|
|
if (isRef(s)) {
|
|
return s.value;
|
|
}
|
|
else if (isReactive(s)) {
|
|
return traverse(s);
|
|
}
|
|
else if (isFunction(s)) {
|
|
return callWithErrorHandling(s, instance, 2 /* WATCH_GETTER */);
|
|
}
|
|
else {
|
|
warnInvalidSource(s);
|
|
}
|
|
});
|
|
}
|
|
else if (isFunction(source)) {
|
|
if (cb) {
|
|
// getter with cb
|
|
getter = () => callWithErrorHandling(source, instance, 2 /* WATCH_GETTER */);
|
|
}
|
|
else {
|
|
// no cb -> simple effect
|
|
getter = () => {
|
|
if (instance && instance.isUnmounted) {
|
|
return;
|
|
}
|
|
if (cleanup) {
|
|
cleanup();
|
|
}
|
|
return callWithErrorHandling(source, instance, 3 /* WATCH_CALLBACK */, [onInvalidate]);
|
|
};
|
|
}
|
|
}
|
|
else {
|
|
getter = NOOP;
|
|
warnInvalidSource(source);
|
|
}
|
|
if (cb && deep) {
|
|
const baseGetter = getter;
|
|
getter = () => traverse(baseGetter());
|
|
}
|
|
let cleanup;
|
|
const onInvalidate = (fn) => {
|
|
cleanup = runner.options.onStop = () => {
|
|
callWithErrorHandling(fn, instance, 4 /* WATCH_CLEANUP */);
|
|
};
|
|
};
|
|
let oldValue = isArray(source) ? [] : INITIAL_WATCHER_VALUE;
|
|
const job = () => {
|
|
if (!runner.active) {
|
|
return;
|
|
}
|
|
if (cb) {
|
|
// watch(source, cb)
|
|
const newValue = runner();
|
|
if (deep || forceTrigger || hasChanged(newValue, oldValue)) {
|
|
// cleanup before running cb again
|
|
if (cleanup) {
|
|
cleanup();
|
|
}
|
|
callWithAsyncErrorHandling(cb, instance, 3 /* WATCH_CALLBACK */, [
|
|
newValue,
|
|
// pass undefined as the old value when it's changed for the first time
|
|
oldValue === INITIAL_WATCHER_VALUE ? undefined : oldValue,
|
|
onInvalidate
|
|
]);
|
|
oldValue = newValue;
|
|
}
|
|
}
|
|
else {
|
|
// watchEffect
|
|
runner();
|
|
}
|
|
};
|
|
// important: mark the job as a watcher callback so that scheduler knows
|
|
// it is allowed to self-trigger (#1727)
|
|
job.allowRecurse = !!cb;
|
|
let scheduler;
|
|
if (flush === 'sync') {
|
|
scheduler = job;
|
|
}
|
|
else if (flush === 'post') {
|
|
scheduler = () => queuePostRenderEffect(job, instance && instance.suspense);
|
|
}
|
|
else {
|
|
// default: 'pre'
|
|
scheduler = () => {
|
|
if (!instance || instance.isMounted) {
|
|
queuePreFlushCb(job);
|
|
}
|
|
else {
|
|
// with 'pre' option, the first call must happen before
|
|
// the component is mounted so it is called synchronously.
|
|
job();
|
|
}
|
|
};
|
|
}
|
|
const runner = effect(getter, {
|
|
lazy: true,
|
|
onTrack,
|
|
onTrigger,
|
|
scheduler
|
|
});
|
|
recordInstanceBoundEffect(runner);
|
|
// initial run
|
|
if (cb) {
|
|
if (immediate) {
|
|
job();
|
|
}
|
|
else {
|
|
oldValue = runner();
|
|
}
|
|
}
|
|
else if (flush === 'post') {
|
|
queuePostRenderEffect(runner, instance && instance.suspense);
|
|
}
|
|
else {
|
|
runner();
|
|
}
|
|
return () => {
|
|
stop(runner);
|
|
if (instance) {
|
|
remove(instance.effects, runner);
|
|
}
|
|
};
|
|
}
|
|
// this.$watch
|
|
function instanceWatch(source, cb, options) {
|
|
const publicThis = this.proxy;
|
|
const getter = isString(source)
|
|
? () => publicThis[source]
|
|
: source.bind(publicThis);
|
|
return doWatch(getter, cb.bind(publicThis), options, this);
|
|
}
|
|
function traverse(value, seen = new Set()) {
|
|
if (!isObject(value) || seen.has(value)) {
|
|
return value;
|
|
}
|
|
seen.add(value);
|
|
if (isRef(value)) {
|
|
traverse(value.value, seen);
|
|
}
|
|
else if (isArray(value)) {
|
|
for (let i = 0; i < value.length; i++) {
|
|
traverse(value[i], seen);
|
|
}
|
|
}
|
|
else if (isSet(value) || isMap(value)) {
|
|
value.forEach((v) => {
|
|
traverse(v, seen);
|
|
});
|
|
}
|
|
else {
|
|
for (const key in value) {
|
|
traverse(value[key], seen);
|
|
}
|
|
}
|
|
return value;
|
|
}
|
|
|
|
function useTransitionState() {
|
|
const state = {
|
|
isMounted: false,
|
|
isLeaving: false,
|
|
isUnmounting: false,
|
|
leavingVNodes: new Map()
|
|
};
|
|
onMounted(() => {
|
|
state.isMounted = true;
|
|
});
|
|
onBeforeUnmount(() => {
|
|
state.isUnmounting = true;
|
|
});
|
|
return state;
|
|
}
|
|
const TransitionHookValidator = [Function, Array];
|
|
const BaseTransitionImpl = {
|
|
name: `BaseTransition`,
|
|
props: {
|
|
mode: String,
|
|
appear: Boolean,
|
|
persisted: Boolean,
|
|
// enter
|
|
onBeforeEnter: TransitionHookValidator,
|
|
onEnter: TransitionHookValidator,
|
|
onAfterEnter: TransitionHookValidator,
|
|
onEnterCancelled: TransitionHookValidator,
|
|
// leave
|
|
onBeforeLeave: TransitionHookValidator,
|
|
onLeave: TransitionHookValidator,
|
|
onAfterLeave: TransitionHookValidator,
|
|
onLeaveCancelled: TransitionHookValidator,
|
|
// appear
|
|
onBeforeAppear: TransitionHookValidator,
|
|
onAppear: TransitionHookValidator,
|
|
onAfterAppear: TransitionHookValidator,
|
|
onAppearCancelled: TransitionHookValidator
|
|
},
|
|
setup(props, { slots }) {
|
|
const instance = getCurrentInstance();
|
|
const state = useTransitionState();
|
|
let prevTransitionKey;
|
|
return () => {
|
|
const children = slots.default && getTransitionRawChildren(slots.default(), true);
|
|
if (!children || !children.length) {
|
|
return;
|
|
}
|
|
// warn multiple elements
|
|
if ( children.length > 1) {
|
|
warn('<transition> can only be used on a single element or component. Use ' +
|
|
'<transition-group> for lists.');
|
|
}
|
|
// there's no need to track reactivity for these props so use the raw
|
|
// props for a bit better perf
|
|
const rawProps = toRaw(props);
|
|
const { mode } = rawProps;
|
|
// check mode
|
|
if ( mode && !['in-out', 'out-in', 'default'].includes(mode)) {
|
|
warn(`invalid <transition> mode: ${mode}`);
|
|
}
|
|
// at this point children has a guaranteed length of 1.
|
|
const child = children[0];
|
|
if (state.isLeaving) {
|
|
return emptyPlaceholder(child);
|
|
}
|
|
// in the case of <transition><keep-alive/></transition>, we need to
|
|
// compare the type of the kept-alive children.
|
|
const innerChild = getKeepAliveChild(child);
|
|
if (!innerChild) {
|
|
return emptyPlaceholder(child);
|
|
}
|
|
const enterHooks = resolveTransitionHooks(innerChild, rawProps, state, instance);
|
|
setTransitionHooks(innerChild, enterHooks);
|
|
const oldChild = instance.subTree;
|
|
const oldInnerChild = oldChild && getKeepAliveChild(oldChild);
|
|
let transitionKeyChanged = false;
|
|
const { getTransitionKey } = innerChild.type;
|
|
if (getTransitionKey) {
|
|
const key = getTransitionKey();
|
|
if (prevTransitionKey === undefined) {
|
|
prevTransitionKey = key;
|
|
}
|
|
else if (key !== prevTransitionKey) {
|
|
prevTransitionKey = key;
|
|
transitionKeyChanged = true;
|
|
}
|
|
}
|
|
// handle mode
|
|
if (oldInnerChild &&
|
|
oldInnerChild.type !== Comment &&
|
|
(!isSameVNodeType(innerChild, oldInnerChild) || transitionKeyChanged)) {
|
|
const leavingHooks = resolveTransitionHooks(oldInnerChild, rawProps, state, instance);
|
|
// update old tree's hooks in case of dynamic transition
|
|
setTransitionHooks(oldInnerChild, leavingHooks);
|
|
// switching between different views
|
|
if (mode === 'out-in') {
|
|
state.isLeaving = true;
|
|
// return placeholder node and queue update when leave finishes
|
|
leavingHooks.afterLeave = () => {
|
|
state.isLeaving = false;
|
|
instance.update();
|
|
};
|
|
return emptyPlaceholder(child);
|
|
}
|
|
else if (mode === 'in-out') {
|
|
leavingHooks.delayLeave = (el, earlyRemove, delayedLeave) => {
|
|
const leavingVNodesCache = getLeavingNodesForType(state, oldInnerChild);
|
|
leavingVNodesCache[String(oldInnerChild.key)] = oldInnerChild;
|
|
// early removal callback
|
|
el._leaveCb = () => {
|
|
earlyRemove();
|
|
el._leaveCb = undefined;
|
|
delete enterHooks.delayedLeave;
|
|
};
|
|
enterHooks.delayedLeave = delayedLeave;
|
|
};
|
|
}
|
|
}
|
|
return child;
|
|
};
|
|
}
|
|
};
|
|
// export the public type for h/tsx inference
|
|
// also to avoid inline import() in generated d.ts files
|
|
const BaseTransition = BaseTransitionImpl;
|
|
function getLeavingNodesForType(state, vnode) {
|
|
const { leavingVNodes } = state;
|
|
let leavingVNodesCache = leavingVNodes.get(vnode.type);
|
|
if (!leavingVNodesCache) {
|
|
leavingVNodesCache = Object.create(null);
|
|
leavingVNodes.set(vnode.type, leavingVNodesCache);
|
|
}
|
|
return leavingVNodesCache;
|
|
}
|
|
// The transition hooks are attached to the vnode as vnode.transition
|
|
// and will be called at appropriate timing in the renderer.
|
|
function resolveTransitionHooks(vnode, props, state, instance) {
|
|
const { appear, mode, persisted = false, onBeforeEnter, onEnter, onAfterEnter, onEnterCancelled, onBeforeLeave, onLeave, onAfterLeave, onLeaveCancelled, onBeforeAppear, onAppear, onAfterAppear, onAppearCancelled } = props;
|
|
const key = String(vnode.key);
|
|
const leavingVNodesCache = getLeavingNodesForType(state, vnode);
|
|
const callHook = (hook, args) => {
|
|
hook &&
|
|
callWithAsyncErrorHandling(hook, instance, 9 /* TRANSITION_HOOK */, args);
|
|
};
|
|
const hooks = {
|
|
mode,
|
|
persisted,
|
|
beforeEnter(el) {
|
|
let hook = onBeforeEnter;
|
|
if (!state.isMounted) {
|
|
if (appear) {
|
|
hook = onBeforeAppear || onBeforeEnter;
|
|
}
|
|
else {
|
|
return;
|
|
}
|
|
}
|
|
// for same element (v-show)
|
|
if (el._leaveCb) {
|
|
el._leaveCb(true /* cancelled */);
|
|
}
|
|
// for toggled element with same key (v-if)
|
|
const leavingVNode = leavingVNodesCache[key];
|
|
if (leavingVNode &&
|
|
isSameVNodeType(vnode, leavingVNode) &&
|
|
leavingVNode.el._leaveCb) {
|
|
// force early removal (not cancelled)
|
|
leavingVNode.el._leaveCb();
|
|
}
|
|
callHook(hook, [el]);
|
|
},
|
|
enter(el) {
|
|
let hook = onEnter;
|
|
let afterHook = onAfterEnter;
|
|
let cancelHook = onEnterCancelled;
|
|
if (!state.isMounted) {
|
|
if (appear) {
|
|
hook = onAppear || onEnter;
|
|
afterHook = onAfterAppear || onAfterEnter;
|
|
cancelHook = onAppearCancelled || onEnterCancelled;
|
|
}
|
|
else {
|
|
return;
|
|
}
|
|
}
|
|
let called = false;
|
|
const done = (el._enterCb = (cancelled) => {
|
|
if (called)
|
|
return;
|
|
called = true;
|
|
if (cancelled) {
|
|
callHook(cancelHook, [el]);
|
|
}
|
|
else {
|
|
callHook(afterHook, [el]);
|
|
}
|
|
if (hooks.delayedLeave) {
|
|
hooks.delayedLeave();
|
|
}
|
|
el._enterCb = undefined;
|
|
});
|
|
if (hook) {
|
|
hook(el, done);
|
|
if (hook.length <= 1) {
|
|
done();
|
|
}
|
|
}
|
|
else {
|
|
done();
|
|
}
|
|
},
|
|
leave(el, remove) {
|
|
const key = String(vnode.key);
|
|
if (el._enterCb) {
|
|
el._enterCb(true /* cancelled */);
|
|
}
|
|
if (state.isUnmounting) {
|
|
return remove();
|
|
}
|
|
callHook(onBeforeLeave, [el]);
|
|
let called = false;
|
|
const done = (el._leaveCb = (cancelled) => {
|
|
if (called)
|
|
return;
|
|
called = true;
|
|
remove();
|
|
if (cancelled) {
|
|
callHook(onLeaveCancelled, [el]);
|
|
}
|
|
else {
|
|
callHook(onAfterLeave, [el]);
|
|
}
|
|
el._leaveCb = undefined;
|
|
if (leavingVNodesCache[key] === vnode) {
|
|
delete leavingVNodesCache[key];
|
|
}
|
|
});
|
|
leavingVNodesCache[key] = vnode;
|
|
if (onLeave) {
|
|
onLeave(el, done);
|
|
if (onLeave.length <= 1) {
|
|
done();
|
|
}
|
|
}
|
|
else {
|
|
done();
|
|
}
|
|
},
|
|
clone(vnode) {
|
|
return resolveTransitionHooks(vnode, props, state, instance);
|
|
}
|
|
};
|
|
return hooks;
|
|
}
|
|
// the placeholder really only handles one special case: KeepAlive
|
|
// in the case of a KeepAlive in a leave phase we need to return a KeepAlive
|
|
// placeholder with empty content to avoid the KeepAlive instance from being
|
|
// unmounted.
|
|
function emptyPlaceholder(vnode) {
|
|
if (isKeepAlive(vnode)) {
|
|
vnode = cloneVNode(vnode);
|
|
vnode.children = null;
|
|
return vnode;
|
|
}
|
|
}
|
|
function getKeepAliveChild(vnode) {
|
|
return isKeepAlive(vnode)
|
|
? vnode.children
|
|
? vnode.children[0]
|
|
: undefined
|
|
: vnode;
|
|
}
|
|
function setTransitionHooks(vnode, hooks) {
|
|
if (vnode.shapeFlag & 6 /* COMPONENT */ && vnode.component) {
|
|
setTransitionHooks(vnode.component.subTree, hooks);
|
|
}
|
|
else if ( vnode.shapeFlag & 128 /* SUSPENSE */) {
|
|
vnode.ssContent.transition = hooks.clone(vnode.ssContent);
|
|
vnode.ssFallback.transition = hooks.clone(vnode.ssFallback);
|
|
}
|
|
else {
|
|
vnode.transition = hooks;
|
|
}
|
|
}
|
|
function getTransitionRawChildren(children, keepComment = false) {
|
|
let ret = [];
|
|
let keyedFragmentCount = 0;
|
|
for (let i = 0; i < children.length; i++) {
|
|
const child = children[i];
|
|
// handle fragment children case, e.g. v-for
|
|
if (child.type === Fragment) {
|
|
if (child.patchFlag & 128 /* KEYED_FRAGMENT */)
|
|
keyedFragmentCount++;
|
|
ret = ret.concat(getTransitionRawChildren(child.children, keepComment));
|
|
}
|
|
// comment placeholders should be skipped, e.g. v-if
|
|
else if (keepComment || child.type !== Comment) {
|
|
ret.push(child);
|
|
}
|
|
}
|
|
// #1126 if a transition children list contains multiple sub fragments, these
|
|
// fragments will be merged into a flat children array. Since each v-for
|
|
// fragment may contain different static bindings inside, we need to de-top
|
|
// these children to force full diffs to ensure correct behavior.
|
|
if (keyedFragmentCount > 1) {
|
|
for (let i = 0; i < ret.length; i++) {
|
|
ret[i].patchFlag = -2 /* BAIL */;
|
|
}
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
const isKeepAlive = (vnode) => vnode.type.__isKeepAlive;
|
|
const KeepAliveImpl = {
|
|
name: `KeepAlive`,
|
|
// Marker for special handling inside the renderer. We are not using a ===
|
|
// check directly on KeepAlive in the renderer, because importing it directly
|
|
// would prevent it from being tree-shaken.
|
|
__isKeepAlive: true,
|
|
inheritRef: true,
|
|
props: {
|
|
include: [String, RegExp, Array],
|
|
exclude: [String, RegExp, Array],
|
|
max: [String, Number]
|
|
},
|
|
setup(props, { slots }) {
|
|
const cache = new Map();
|
|
const keys = new Set();
|
|
let current = null;
|
|
const instance = getCurrentInstance();
|
|
const parentSuspense = instance.suspense;
|
|
// KeepAlive communicates with the instantiated renderer via the
|
|
// ctx where the renderer passes in its internals,
|
|
// and the KeepAlive instance exposes activate/deactivate implementations.
|
|
// The whole point of this is to avoid importing KeepAlive directly in the
|
|
// renderer to facilitate tree-shaking.
|
|
const sharedContext = instance.ctx;
|
|
const { renderer: { p: patch, m: move, um: _unmount, o: { createElement } } } = sharedContext;
|
|
const storageContainer = createElement('div');
|
|
sharedContext.activate = (vnode, container, anchor, isSVG, optimized) => {
|
|
const instance = vnode.component;
|
|
move(vnode, container, anchor, 0 /* ENTER */, parentSuspense);
|
|
// in case props have changed
|
|
patch(instance.vnode, vnode, container, anchor, instance, parentSuspense, isSVG, optimized);
|
|
queuePostRenderEffect(() => {
|
|
instance.isDeactivated = false;
|
|
if (instance.a) {
|
|
invokeArrayFns(instance.a);
|
|
}
|
|
const vnodeHook = vnode.props && vnode.props.onVnodeMounted;
|
|
if (vnodeHook) {
|
|
invokeVNodeHook(vnodeHook, instance.parent, vnode);
|
|
}
|
|
}, parentSuspense);
|
|
};
|
|
sharedContext.deactivate = (vnode) => {
|
|
const instance = vnode.component;
|
|
move(vnode, storageContainer, null, 1 /* LEAVE */, parentSuspense);
|
|
queuePostRenderEffect(() => {
|
|
if (instance.da) {
|
|
invokeArrayFns(instance.da);
|
|
}
|
|
const vnodeHook = vnode.props && vnode.props.onVnodeUnmounted;
|
|
if (vnodeHook) {
|
|
invokeVNodeHook(vnodeHook, instance.parent, vnode);
|
|
}
|
|
instance.isDeactivated = true;
|
|
}, parentSuspense);
|
|
};
|
|
function unmount(vnode) {
|
|
// reset the shapeFlag so it can be properly unmounted
|
|
resetShapeFlag(vnode);
|
|
_unmount(vnode, instance, parentSuspense);
|
|
}
|
|
function pruneCache(filter) {
|
|
cache.forEach((vnode, key) => {
|
|
const name = getName(vnode.type);
|
|
if (name && (!filter || !filter(name))) {
|
|
pruneCacheEntry(key);
|
|
}
|
|
});
|
|
}
|
|
function pruneCacheEntry(key) {
|
|
const cached = cache.get(key);
|
|
if (!current || cached.type !== current.type) {
|
|
unmount(cached);
|
|
}
|
|
else if (current) {
|
|
// current active instance should no longer be kept-alive.
|
|
// we can't unmount it now but it might be later, so reset its flag now.
|
|
resetShapeFlag(current);
|
|
}
|
|
cache.delete(key);
|
|
keys.delete(key);
|
|
}
|
|
// prune cache on include/exclude prop change
|
|
watch(() => [props.include, props.exclude], ([include, exclude]) => {
|
|
include && pruneCache(name => matches(include, name));
|
|
exclude && pruneCache(name => !matches(exclude, name));
|
|
},
|
|
// prune post-render after `current` has been updated
|
|
{ flush: 'post' });
|
|
// cache sub tree after render
|
|
let pendingCacheKey = null;
|
|
const cacheSubtree = () => {
|
|
// fix #1621, the pendingCacheKey could be 0
|
|
if (pendingCacheKey != null) {
|
|
cache.set(pendingCacheKey, getInnerChild(instance.subTree));
|
|
}
|
|
};
|
|
onMounted(cacheSubtree);
|
|
onUpdated(cacheSubtree);
|
|
onBeforeUnmount(() => {
|
|
cache.forEach(cached => {
|
|
const { subTree, suspense } = instance;
|
|
const vnode = getInnerChild(subTree);
|
|
if (cached.type === vnode.type) {
|
|
// current instance will be unmounted as part of keep-alive's unmount
|
|
resetShapeFlag(vnode);
|
|
// but invoke its deactivated hook here
|
|
const da = vnode.component.da;
|
|
da && queuePostRenderEffect(da, suspense);
|
|
return;
|
|
}
|
|
unmount(cached);
|
|
});
|
|
});
|
|
return () => {
|
|
pendingCacheKey = null;
|
|
if (!slots.default) {
|
|
return null;
|
|
}
|
|
const children = slots.default();
|
|
const rawVNode = children[0];
|
|
if (children.length > 1) {
|
|
{
|
|
warn(`KeepAlive should contain exactly one component child.`);
|
|
}
|
|
current = null;
|
|
return children;
|
|
}
|
|
else if (!isVNode(rawVNode) ||
|
|
(!(rawVNode.shapeFlag & 4 /* STATEFUL_COMPONENT */) &&
|
|
!(rawVNode.shapeFlag & 128 /* SUSPENSE */))) {
|
|
current = null;
|
|
return rawVNode;
|
|
}
|
|
let vnode = getInnerChild(rawVNode);
|
|
const comp = vnode.type;
|
|
const name = getName(comp);
|
|
const { include, exclude, max } = props;
|
|
if ((include && (!name || !matches(include, name))) ||
|
|
(exclude && name && matches(exclude, name))) {
|
|
current = vnode;
|
|
return rawVNode;
|
|
}
|
|
const key = vnode.key == null ? comp : vnode.key;
|
|
const cachedVNode = cache.get(key);
|
|
// clone vnode if it's reused because we are going to mutate it
|
|
if (vnode.el) {
|
|
vnode = cloneVNode(vnode);
|
|
if (rawVNode.shapeFlag & 128 /* SUSPENSE */) {
|
|
rawVNode.ssContent = vnode;
|
|
}
|
|
}
|
|
// #1513 it's possible for the returned vnode to be cloned due to attr
|
|
// fallthrough or scopeId, so the vnode here may not be the final vnode
|
|
// that is mounted. Instead of caching it directly, we store the pending
|
|
// key and cache `instance.subTree` (the normalized vnode) in
|
|
// beforeMount/beforeUpdate hooks.
|
|
pendingCacheKey = key;
|
|
if (cachedVNode) {
|
|
// copy over mounted state
|
|
vnode.el = cachedVNode.el;
|
|
vnode.component = cachedVNode.component;
|
|
if (vnode.transition) {
|
|
// recursively update transition hooks on subTree
|
|
setTransitionHooks(vnode, vnode.transition);
|
|
}
|
|
// avoid vnode being mounted as fresh
|
|
vnode.shapeFlag |= 512 /* COMPONENT_KEPT_ALIVE */;
|
|
// make this key the freshest
|
|
keys.delete(key);
|
|
keys.add(key);
|
|
}
|
|
else {
|
|
keys.add(key);
|
|
// prune oldest entry
|
|
if (max && keys.size > parseInt(max, 10)) {
|
|
pruneCacheEntry(keys.values().next().value);
|
|
}
|
|
}
|
|
// avoid vnode being unmounted
|
|
vnode.shapeFlag |= 256 /* COMPONENT_SHOULD_KEEP_ALIVE */;
|
|
current = vnode;
|
|
return rawVNode;
|
|
};
|
|
}
|
|
};
|
|
// export the public type for h/tsx inference
|
|
// also to avoid inline import() in generated d.ts files
|
|
const KeepAlive = KeepAliveImpl;
|
|
function getName(comp) {
|
|
return comp.displayName || comp.name;
|
|
}
|
|
function matches(pattern, name) {
|
|
if (isArray(pattern)) {
|
|
return pattern.some((p) => matches(p, name));
|
|
}
|
|
else if (isString(pattern)) {
|
|
return pattern.split(',').indexOf(name) > -1;
|
|
}
|
|
else if (pattern.test) {
|
|
return pattern.test(name);
|
|
}
|
|
/* istanbul ignore next */
|
|
return false;
|
|
}
|
|
function onActivated(hook, target) {
|
|
registerKeepAliveHook(hook, "a" /* ACTIVATED */, target);
|
|
}
|
|
function onDeactivated(hook, target) {
|
|
registerKeepAliveHook(hook, "da" /* DEACTIVATED */, target);
|
|
}
|
|
function registerKeepAliveHook(hook, type, target = currentInstance) {
|
|
// cache the deactivate branch check wrapper for injected hooks so the same
|
|
// hook can be properly deduped by the scheduler. "__wdc" stands for "with
|
|
// deactivation check".
|
|
const wrappedHook = hook.__wdc ||
|
|
(hook.__wdc = () => {
|
|
// only fire the hook if the target instance is NOT in a deactivated branch.
|
|
let current = target;
|
|
while (current) {
|
|
if (current.isDeactivated) {
|
|
return;
|
|
}
|
|
current = current.parent;
|
|
}
|
|
hook();
|
|
});
|
|
injectHook(type, wrappedHook, target);
|
|
// In addition to registering it on the target instance, we walk up the parent
|
|
// chain and register it on all ancestor instances that are keep-alive roots.
|
|
// This avoids the need to walk the entire component tree when invoking these
|
|
// hooks, and more importantly, avoids the need to track child components in
|
|
// arrays.
|
|
if (target) {
|
|
let current = target.parent;
|
|
while (current && current.parent) {
|
|
if (isKeepAlive(current.parent.vnode)) {
|
|
injectToKeepAliveRoot(wrappedHook, type, target, current);
|
|
}
|
|
current = current.parent;
|
|
}
|
|
}
|
|
}
|
|
function injectToKeepAliveRoot(hook, type, target, keepAliveRoot) {
|
|
// injectHook wraps the original for error handling, so make sure to remove
|
|
// the wrapped version.
|
|
const injected = injectHook(type, hook, keepAliveRoot, true /* prepend */);
|
|
onUnmounted(() => {
|
|
remove(keepAliveRoot[type], injected);
|
|
}, target);
|
|
}
|
|
function resetShapeFlag(vnode) {
|
|
let shapeFlag = vnode.shapeFlag;
|
|
if (shapeFlag & 256 /* COMPONENT_SHOULD_KEEP_ALIVE */) {
|
|
shapeFlag -= 256 /* COMPONENT_SHOULD_KEEP_ALIVE */;
|
|
}
|
|
if (shapeFlag & 512 /* COMPONENT_KEPT_ALIVE */) {
|
|
shapeFlag -= 512 /* COMPONENT_KEPT_ALIVE */;
|
|
}
|
|
vnode.shapeFlag = shapeFlag;
|
|
}
|
|
function getInnerChild(vnode) {
|
|
return vnode.shapeFlag & 128 /* SUSPENSE */ ? vnode.ssContent : vnode;
|
|
}
|
|
|
|
const isInternalKey = (key) => key[0] === '_' || key === '$stable';
|
|
const normalizeSlotValue = (value) => isArray(value)
|
|
? value.map(normalizeVNode)
|
|
: [normalizeVNode(value)];
|
|
const normalizeSlot = (key, rawSlot, ctx) => withCtx((props) => {
|
|
if ( currentInstance) {
|
|
warn(`Slot "${key}" invoked outside of the render function: ` +
|
|
`this will not track dependencies used in the slot. ` +
|
|
`Invoke the slot function inside the render function instead.`);
|
|
}
|
|
return normalizeSlotValue(rawSlot(props));
|
|
}, ctx);
|
|
const normalizeObjectSlots = (rawSlots, slots) => {
|
|
const ctx = rawSlots._ctx;
|
|
for (const key in rawSlots) {
|
|
if (isInternalKey(key))
|
|
continue;
|
|
const value = rawSlots[key];
|
|
if (isFunction(value)) {
|
|
slots[key] = normalizeSlot(key, value, ctx);
|
|
}
|
|
else if (value != null) {
|
|
{
|
|
warn(`Non-function value encountered for slot "${key}". ` +
|
|
`Prefer function slots for better performance.`);
|
|
}
|
|
const normalized = normalizeSlotValue(value);
|
|
slots[key] = () => normalized;
|
|
}
|
|
}
|
|
};
|
|
const normalizeVNodeSlots = (instance, children) => {
|
|
if ( !isKeepAlive(instance.vnode)) {
|
|
warn(`Non-function value encountered for default slot. ` +
|
|
`Prefer function slots for better performance.`);
|
|
}
|
|
const normalized = normalizeSlotValue(children);
|
|
instance.slots.default = () => normalized;
|
|
};
|
|
const initSlots = (instance, children) => {
|
|
if (instance.vnode.shapeFlag & 32 /* SLOTS_CHILDREN */) {
|
|
const type = children._;
|
|
if (type) {
|
|
instance.slots = children;
|
|
// make compiler marker non-enumerable
|
|
def(children, '_', type);
|
|
}
|
|
else {
|
|
normalizeObjectSlots(children, (instance.slots = {}));
|
|
}
|
|
}
|
|
else {
|
|
instance.slots = {};
|
|
if (children) {
|
|
normalizeVNodeSlots(instance, children);
|
|
}
|
|
}
|
|
def(instance.slots, InternalObjectKey, 1);
|
|
};
|
|
const updateSlots = (instance, children) => {
|
|
const { vnode, slots } = instance;
|
|
let needDeletionCheck = true;
|
|
let deletionComparisonTarget = EMPTY_OBJ;
|
|
if (vnode.shapeFlag & 32 /* SLOTS_CHILDREN */) {
|
|
const type = children._;
|
|
if (type) {
|
|
// compiled slots.
|
|
if ( isHmrUpdating) {
|
|
// Parent was HMR updated so slot content may have changed.
|
|
// force update slots and mark instance for hmr as well
|
|
extend(slots, children);
|
|
}
|
|
else if (type === 1 /* STABLE */) {
|
|
// compiled AND stable.
|
|
// no need to update, and skip stale slots removal.
|
|
needDeletionCheck = false;
|
|
}
|
|
else {
|
|
// compiled but dynamic (v-if/v-for on slots) - update slots, but skip
|
|
// normalization.
|
|
extend(slots, children);
|
|
}
|
|
}
|
|
else {
|
|
needDeletionCheck = !children.$stable;
|
|
normalizeObjectSlots(children, slots);
|
|
}
|
|
deletionComparisonTarget = children;
|
|
}
|
|
else if (children) {
|
|
// non slot object children (direct value) passed to a component
|
|
normalizeVNodeSlots(instance, children);
|
|
deletionComparisonTarget = { default: 1 };
|
|
}
|
|
// delete stale slots
|
|
if (needDeletionCheck) {
|
|
for (const key in slots) {
|
|
if (!isInternalKey(key) && !(key in deletionComparisonTarget)) {
|
|
delete slots[key];
|
|
}
|
|
}
|
|
}
|
|
};
|
|
|
|
/**
|
|
Runtime helper for applying directives to a vnode. Example usage:
|
|
|
|
const comp = resolveComponent('comp')
|
|
const foo = resolveDirective('foo')
|
|
const bar = resolveDirective('bar')
|
|
|
|
return withDirectives(h(comp), [
|
|
[foo, this.x],
|
|
[bar, this.y]
|
|
])
|
|
*/
|
|
const isBuiltInDirective = /*#__PURE__*/ makeMap('bind,cloak,else-if,else,for,html,if,model,on,once,pre,show,slot,text');
|
|
function validateDirectiveName(name) {
|
|
if (isBuiltInDirective(name)) {
|
|
warn('Do not use built-in directive ids as custom directive id: ' + name);
|
|
}
|
|
}
|
|
/**
|
|
* Adds directives to a VNode.
|
|
*/
|
|
function withDirectives(vnode, directives) {
|
|
const internalInstance = currentRenderingInstance;
|
|
if (internalInstance === null) {
|
|
warn(`withDirectives can only be used inside render functions.`);
|
|
return vnode;
|
|
}
|
|
const instance = internalInstance.proxy;
|
|
const bindings = vnode.dirs || (vnode.dirs = []);
|
|
for (let i = 0; i < directives.length; i++) {
|
|
let [dir, value, arg, modifiers = EMPTY_OBJ] = directives[i];
|
|
if (isFunction(dir)) {
|
|
dir = {
|
|
mounted: dir,
|
|
updated: dir
|
|
};
|
|
}
|
|
bindings.push({
|
|
dir,
|
|
instance,
|
|
value,
|
|
oldValue: void 0,
|
|
arg,
|
|
modifiers
|
|
});
|
|
}
|
|
return vnode;
|
|
}
|
|
function invokeDirectiveHook(vnode, prevVNode, instance, name) {
|
|
const bindings = vnode.dirs;
|
|
const oldBindings = prevVNode && prevVNode.dirs;
|
|
for (let i = 0; i < bindings.length; i++) {
|
|
const binding = bindings[i];
|
|
if (oldBindings) {
|
|
binding.oldValue = oldBindings[i].value;
|
|
}
|
|
const hook = binding.dir[name];
|
|
if (hook) {
|
|
callWithAsyncErrorHandling(hook, instance, 8 /* DIRECTIVE_HOOK */, [
|
|
vnode.el,
|
|
binding,
|
|
vnode,
|
|
prevVNode
|
|
]);
|
|
}
|
|
}
|
|
}
|
|
|
|
function createAppContext() {
|
|
return {
|
|
app: null,
|
|
config: {
|
|
isNativeTag: NO,
|
|
performance: false,
|
|
globalProperties: {},
|
|
optionMergeStrategies: {},
|
|
isCustomElement: NO,
|
|
errorHandler: undefined,
|
|
warnHandler: undefined
|
|
},
|
|
mixins: [],
|
|
components: {},
|
|
directives: {},
|
|
provides: Object.create(null)
|
|
};
|
|
}
|
|
let uid$1 = 0;
|
|
function createAppAPI(render, hydrate) {
|
|
return function createApp(rootComponent, rootProps = null) {
|
|
if (rootProps != null && !isObject(rootProps)) {
|
|
warn(`root props passed to app.mount() must be an object.`);
|
|
rootProps = null;
|
|
}
|
|
const context = createAppContext();
|
|
const installedPlugins = new Set();
|
|
let isMounted = false;
|
|
const app = (context.app = {
|
|
_uid: uid$1++,
|
|
_component: rootComponent,
|
|
_props: rootProps,
|
|
_container: null,
|
|
_context: context,
|
|
version,
|
|
get config() {
|
|
return context.config;
|
|
},
|
|
set config(v) {
|
|
{
|
|
warn(`app.config cannot be replaced. Modify individual options instead.`);
|
|
}
|
|
},
|
|
use(plugin, ...options) {
|
|
if (installedPlugins.has(plugin)) {
|
|
warn(`Plugin has already been applied to target app.`);
|
|
}
|
|
else if (plugin && isFunction(plugin.install)) {
|
|
installedPlugins.add(plugin);
|
|
plugin.install(app, ...options);
|
|
}
|
|
else if (isFunction(plugin)) {
|
|
installedPlugins.add(plugin);
|
|
plugin(app, ...options);
|
|
}
|
|
else {
|
|
warn(`A plugin must either be a function or an object with an "install" ` +
|
|
`function.`);
|
|
}
|
|
return app;
|
|
},
|
|
mixin(mixin) {
|
|
{
|
|
if (!context.mixins.includes(mixin)) {
|
|
context.mixins.push(mixin);
|
|
// global mixin with props/emits de-optimizes props/emits
|
|
// normalization caching.
|
|
if (mixin.props || mixin.emits) {
|
|
context.deopt = true;
|
|
}
|
|
}
|
|
else {
|
|
warn('Mixin has already been applied to target app' +
|
|
(mixin.name ? `: ${mixin.name}` : ''));
|
|
}
|
|
}
|
|
return app;
|
|
},
|
|
component(name, component) {
|
|
{
|
|
validateComponentName(name, context.config);
|
|
}
|
|
if (!component) {
|
|
return context.components[name];
|
|
}
|
|
if ( context.components[name]) {
|
|
warn(`Component "${name}" has already been registered in target app.`);
|
|
}
|
|
context.components[name] = component;
|
|
return app;
|
|
},
|
|
directive(name, directive) {
|
|
{
|
|
validateDirectiveName(name);
|
|
}
|
|
if (!directive) {
|
|
return context.directives[name];
|
|
}
|
|
if ( context.directives[name]) {
|
|
warn(`Directive "${name}" has already been registered in target app.`);
|
|
}
|
|
context.directives[name] = directive;
|
|
return app;
|
|
},
|
|
mount(rootContainer, isHydrate) {
|
|
if (!isMounted) {
|
|
const vnode = createVNode(rootComponent, rootProps);
|
|
// store app context on the root VNode.
|
|
// this will be set on the root instance on initial mount.
|
|
vnode.appContext = context;
|
|
// HMR root reload
|
|
{
|
|
context.reload = () => {
|
|
render(cloneVNode(vnode), rootContainer);
|
|
};
|
|
}
|
|
if (isHydrate && hydrate) {
|
|
hydrate(vnode, rootContainer);
|
|
}
|
|
else {
|
|
render(vnode, rootContainer);
|
|
}
|
|
isMounted = true;
|
|
app._container = rootContainer;
|
|
rootContainer.__vue_app__ = app;
|
|
{
|
|
devtoolsInitApp(app, version);
|
|
}
|
|
return vnode.component.proxy;
|
|
}
|
|
else {
|
|
warn(`App has already been mounted.\n` +
|
|
`If you want to remount the same app, move your app creation logic ` +
|
|
`into a factory function and create fresh app instances for each ` +
|
|
`mount - e.g. \`const createMyApp = () => createApp(App)\``);
|
|
}
|
|
},
|
|
unmount() {
|
|
if (isMounted) {
|
|
render(null, app._container);
|
|
{
|
|
devtoolsUnmountApp(app);
|
|
}
|
|
}
|
|
else {
|
|
warn(`Cannot unmount an app that is not mounted.`);
|
|
}
|
|
},
|
|
provide(key, value) {
|
|
if ( key in context.provides) {
|
|
warn(`App already provides property with key "${String(key)}". ` +
|
|
`It will be overwritten with the new value.`);
|
|
}
|
|
// TypeScript doesn't allow symbols as index type
|
|
// https://github.com/Microsoft/TypeScript/issues/24587
|
|
context.provides[key] = value;
|
|
return app;
|
|
}
|
|
});
|
|
return app;
|
|
};
|
|
}
|
|
|
|
let hasMismatch = false;
|
|
const isSVGContainer = (container) => /svg/.test(container.namespaceURI) && container.tagName !== 'foreignObject';
|
|
const isComment = (node) => node.nodeType === 8 /* COMMENT */;
|
|
// Note: hydration is DOM-specific
|
|
// But we have to place it in core due to tight coupling with core - splitting
|
|
// it out creates a ton of unnecessary complexity.
|
|
// Hydration also depends on some renderer internal logic which needs to be
|
|
// passed in via arguments.
|
|
function createHydrationFunctions(rendererInternals) {
|
|
const { mt: mountComponent, p: patch, o: { patchProp, nextSibling, parentNode, remove, insert, createComment } } = rendererInternals;
|
|
const hydrate = (vnode, container) => {
|
|
if ( !container.hasChildNodes()) {
|
|
warn(`Attempting to hydrate existing markup but container is empty. ` +
|
|
`Performing full mount instead.`);
|
|
patch(null, vnode, container);
|
|
return;
|
|
}
|
|
hasMismatch = false;
|
|
hydrateNode(container.firstChild, vnode, null, null);
|
|
flushPostFlushCbs();
|
|
if (hasMismatch && !false) {
|
|
// this error should show up in production
|
|
console.error(`Hydration completed but contains mismatches.`);
|
|
}
|
|
};
|
|
const hydrateNode = (node, vnode, parentComponent, parentSuspense, optimized = false) => {
|
|
const isFragmentStart = isComment(node) && node.data === '[';
|
|
const onMismatch = () => handleMismatch(node, vnode, parentComponent, parentSuspense, isFragmentStart);
|
|
const { type, ref, shapeFlag } = vnode;
|
|
const domType = node.nodeType;
|
|
vnode.el = node;
|
|
let nextNode = null;
|
|
switch (type) {
|
|
case Text:
|
|
if (domType !== 3 /* TEXT */) {
|
|
nextNode = onMismatch();
|
|
}
|
|
else {
|
|
if (node.data !== vnode.children) {
|
|
hasMismatch = true;
|
|
|
|
warn(`Hydration text mismatch:` +
|
|
`\n- Client: ${JSON.stringify(node.data)}` +
|
|
`\n- Server: ${JSON.stringify(vnode.children)}`);
|
|
node.data = vnode.children;
|
|
}
|
|
nextNode = nextSibling(node);
|
|
}
|
|
break;
|
|
case Comment:
|
|
if (domType !== 8 /* COMMENT */ || isFragmentStart) {
|
|
nextNode = onMismatch();
|
|
}
|
|
else {
|
|
nextNode = nextSibling(node);
|
|
}
|
|
break;
|
|
case Static:
|
|
if (domType !== 1 /* ELEMENT */) {
|
|
nextNode = onMismatch();
|
|
}
|
|
else {
|
|
// determine anchor, adopt content
|
|
nextNode = node;
|
|
// if the static vnode has its content stripped during build,
|
|
// adopt it from the server-rendered HTML.
|
|
const needToAdoptContent = !vnode.children.length;
|
|
for (let i = 0; i < vnode.staticCount; i++) {
|
|
if (needToAdoptContent)
|
|
vnode.children += nextNode.outerHTML;
|
|
if (i === vnode.staticCount - 1) {
|
|
vnode.anchor = nextNode;
|
|
}
|
|
nextNode = nextSibling(nextNode);
|
|
}
|
|
return nextNode;
|
|
}
|
|
break;
|
|
case Fragment:
|
|
if (!isFragmentStart) {
|
|
nextNode = onMismatch();
|
|
}
|
|
else {
|
|
nextNode = hydrateFragment(node, vnode, parentComponent, parentSuspense, optimized);
|
|
}
|
|
break;
|
|
default:
|
|
if (shapeFlag & 1 /* ELEMENT */) {
|
|
if (domType !== 1 /* ELEMENT */ ||
|
|
vnode.type !== node.tagName.toLowerCase()) {
|
|
nextNode = onMismatch();
|
|
}
|
|
else {
|
|
nextNode = hydrateElement(node, vnode, parentComponent, parentSuspense, optimized);
|
|
}
|
|
}
|
|
else if (shapeFlag & 6 /* COMPONENT */) {
|
|
// when setting up the render effect, if the initial vnode already
|
|
// has .el set, the component will perform hydration instead of mount
|
|
// on its sub-tree.
|
|
const container = parentNode(node);
|
|
const hydrateComponent = () => {
|
|
mountComponent(vnode, container, null, parentComponent, parentSuspense, isSVGContainer(container), optimized);
|
|
};
|
|
// async component
|
|
const loadAsync = vnode.type.__asyncLoader;
|
|
if (loadAsync) {
|
|
loadAsync().then(hydrateComponent);
|
|
}
|
|
else {
|
|
hydrateComponent();
|
|
}
|
|
// component may be async, so in the case of fragments we cannot rely
|
|
// on component's rendered output to determine the end of the fragment
|
|
// instead, we do a lookahead to find the end anchor node.
|
|
nextNode = isFragmentStart
|
|
? locateClosingAsyncAnchor(node)
|
|
: nextSibling(node);
|
|
}
|
|
else if (shapeFlag & 64 /* TELEPORT */) {
|
|
if (domType !== 8 /* COMMENT */) {
|
|
nextNode = onMismatch();
|
|
}
|
|
else {
|
|
nextNode = vnode.type.hydrate(node, vnode, parentComponent, parentSuspense, optimized, rendererInternals, hydrateChildren);
|
|
}
|
|
}
|
|
else if ( shapeFlag & 128 /* SUSPENSE */) {
|
|
nextNode = vnode.type.hydrate(node, vnode, parentComponent, parentSuspense, isSVGContainer(parentNode(node)), optimized, rendererInternals, hydrateNode);
|
|
}
|
|
else {
|
|
warn('Invalid HostVNode type:', type, `(${typeof type})`);
|
|
}
|
|
}
|
|
if (ref != null && parentComponent) {
|
|
setRef(ref, null, parentComponent, parentSuspense, vnode);
|
|
}
|
|
return nextNode;
|
|
};
|
|
const hydrateElement = (el, vnode, parentComponent, parentSuspense, optimized) => {
|
|
optimized = optimized || !!vnode.dynamicChildren;
|
|
const { props, patchFlag, shapeFlag, dirs } = vnode;
|
|
// skip props & children if this is hoisted static nodes
|
|
if (patchFlag !== -1 /* HOISTED */) {
|
|
if (dirs) {
|
|
invokeDirectiveHook(vnode, null, parentComponent, 'created');
|
|
}
|
|
// props
|
|
if (props) {
|
|
if (!optimized ||
|
|
(patchFlag & 16 /* FULL_PROPS */ ||
|
|
patchFlag & 32 /* HYDRATE_EVENTS */)) {
|
|
for (const key in props) {
|
|
if (!isReservedProp(key) && isOn(key)) {
|
|
patchProp(el, key, null, props[key]);
|
|
}
|
|
}
|
|
}
|
|
else if (props.onClick) {
|
|
// Fast path for click listeners (which is most often) to avoid
|
|
// iterating through props.
|
|
patchProp(el, 'onClick', null, props.onClick);
|
|
}
|
|
}
|
|
// vnode / directive hooks
|
|
let vnodeHooks;
|
|
if ((vnodeHooks = props && props.onVnodeBeforeMount)) {
|
|
invokeVNodeHook(vnodeHooks, parentComponent, vnode);
|
|
}
|
|
if (dirs) {
|
|
invokeDirectiveHook(vnode, null, parentComponent, 'beforeMount');
|
|
}
|
|
if ((vnodeHooks = props && props.onVnodeMounted) || dirs) {
|
|
queueEffectWithSuspense(() => {
|
|
vnodeHooks && invokeVNodeHook(vnodeHooks, parentComponent, vnode);
|
|
dirs && invokeDirectiveHook(vnode, null, parentComponent, 'mounted');
|
|
}, parentSuspense);
|
|
}
|
|
// children
|
|
if (shapeFlag & 16 /* ARRAY_CHILDREN */ &&
|
|
// skip if element has innerHTML / textContent
|
|
!(props && (props.innerHTML || props.textContent))) {
|
|
let next = hydrateChildren(el.firstChild, vnode, el, parentComponent, parentSuspense, optimized);
|
|
let hasWarned = false;
|
|
while (next) {
|
|
hasMismatch = true;
|
|
if ( !hasWarned) {
|
|
warn(`Hydration children mismatch in <${vnode.type}>: ` +
|
|
`server rendered element contains more child nodes than client vdom.`);
|
|
hasWarned = true;
|
|
}
|
|
// The SSRed DOM contains more nodes than it should. Remove them.
|
|
const cur = next;
|
|
next = next.nextSibling;
|
|
remove(cur);
|
|
}
|
|
}
|
|
else if (shapeFlag & 8 /* TEXT_CHILDREN */) {
|
|
if (el.textContent !== vnode.children) {
|
|
hasMismatch = true;
|
|
|
|
warn(`Hydration text content mismatch in <${vnode.type}>:\n` +
|
|
`- Client: ${el.textContent}\n` +
|
|
`- Server: ${vnode.children}`);
|
|
el.textContent = vnode.children;
|
|
}
|
|
}
|
|
}
|
|
return el.nextSibling;
|
|
};
|
|
const hydrateChildren = (node, parentVNode, container, parentComponent, parentSuspense, optimized) => {
|
|
optimized = optimized || !!parentVNode.dynamicChildren;
|
|
const children = parentVNode.children;
|
|
const l = children.length;
|
|
let hasWarned = false;
|
|
for (let i = 0; i < l; i++) {
|
|
const vnode = optimized
|
|
? children[i]
|
|
: (children[i] = normalizeVNode(children[i]));
|
|
if (node) {
|
|
node = hydrateNode(node, vnode, parentComponent, parentSuspense, optimized);
|
|
}
|
|
else {
|
|
hasMismatch = true;
|
|
if ( !hasWarned) {
|
|
warn(`Hydration children mismatch in <${container.tagName.toLowerCase()}>: ` +
|
|
`server rendered element contains fewer child nodes than client vdom.`);
|
|
hasWarned = true;
|
|
}
|
|
// the SSRed DOM didn't contain enough nodes. Mount the missing ones.
|
|
patch(null, vnode, container, null, parentComponent, parentSuspense, isSVGContainer(container));
|
|
}
|
|
}
|
|
return node;
|
|
};
|
|
const hydrateFragment = (node, vnode, parentComponent, parentSuspense, optimized) => {
|
|
const container = parentNode(node);
|
|
const next = hydrateChildren(nextSibling(node), vnode, container, parentComponent, parentSuspense, optimized);
|
|
if (next && isComment(next) && next.data === ']') {
|
|
return nextSibling((vnode.anchor = next));
|
|
}
|
|
else {
|
|
// fragment didn't hydrate successfully, since we didn't get a end anchor
|
|
// back. This should have led to node/children mismatch warnings.
|
|
hasMismatch = true;
|
|
// since the anchor is missing, we need to create one and insert it
|
|
insert((vnode.anchor = createComment(`]`)), container, next);
|
|
return next;
|
|
}
|
|
};
|
|
const handleMismatch = (node, vnode, parentComponent, parentSuspense, isFragment) => {
|
|
hasMismatch = true;
|
|
|
|
warn(`Hydration node mismatch:\n- Client vnode:`, vnode.type, `\n- Server rendered DOM:`, node, node.nodeType === 3 /* TEXT */
|
|
? `(text)`
|
|
: isComment(node) && node.data === '['
|
|
? `(start of fragment)`
|
|
: ``);
|
|
vnode.el = null;
|
|
if (isFragment) {
|
|
// remove excessive fragment nodes
|
|
const end = locateClosingAsyncAnchor(node);
|
|
while (true) {
|
|
const next = nextSibling(node);
|
|
if (next && next !== end) {
|
|
remove(next);
|
|
}
|
|
else {
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
const next = nextSibling(node);
|
|
const container = parentNode(node);
|
|
remove(node);
|
|
patch(null, vnode, container, next, parentComponent, parentSuspense, isSVGContainer(container));
|
|
return next;
|
|
};
|
|
const locateClosingAsyncAnchor = (node) => {
|
|
let match = 0;
|
|
while (node) {
|
|
node = nextSibling(node);
|
|
if (node && isComment(node)) {
|
|
if (node.data === '[')
|
|
match++;
|
|
if (node.data === ']') {
|
|
if (match === 0) {
|
|
return nextSibling(node);
|
|
}
|
|
else {
|
|
match--;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
return node;
|
|
};
|
|
return [hydrate, hydrateNode];
|
|
}
|
|
|
|
let supported;
|
|
let perf;
|
|
function startMeasure(instance, type) {
|
|
if (instance.appContext.config.performance && isSupported()) {
|
|
perf.mark(`vue-${type}-${instance.uid}`);
|
|
}
|
|
}
|
|
function endMeasure(instance, type) {
|
|
if (instance.appContext.config.performance && isSupported()) {
|
|
const startTag = `vue-${type}-${instance.uid}`;
|
|
const endTag = startTag + `:end`;
|
|
perf.mark(endTag);
|
|
perf.measure(`<${formatComponentName(instance, instance.type)}> ${type}`, startTag, endTag);
|
|
perf.clearMarks(startTag);
|
|
perf.clearMarks(endTag);
|
|
}
|
|
}
|
|
function isSupported() {
|
|
if (supported !== undefined) {
|
|
return supported;
|
|
}
|
|
/* eslint-disable no-restricted-globals */
|
|
if (typeof window !== 'undefined' && window.performance) {
|
|
supported = true;
|
|
perf = window.performance;
|
|
}
|
|
else {
|
|
supported = false;
|
|
}
|
|
/* eslint-enable no-restricted-globals */
|
|
return supported;
|
|
}
|
|
|
|
function createDevEffectOptions(instance) {
|
|
return {
|
|
scheduler: queueJob,
|
|
allowRecurse: true,
|
|
onTrack: instance.rtc ? e => invokeArrayFns(instance.rtc, e) : void 0,
|
|
onTrigger: instance.rtg ? e => invokeArrayFns(instance.rtg, e) : void 0
|
|
};
|
|
}
|
|
const queuePostRenderEffect = queueEffectWithSuspense
|
|
;
|
|
const setRef = (rawRef, oldRawRef, parentComponent, parentSuspense, vnode) => {
|
|
if (isArray(rawRef)) {
|
|
rawRef.forEach((r, i) => setRef(r, oldRawRef && (isArray(oldRawRef) ? oldRawRef[i] : oldRawRef), parentComponent, parentSuspense, vnode));
|
|
return;
|
|
}
|
|
let value;
|
|
if (!vnode) {
|
|
value = null;
|
|
}
|
|
else {
|
|
if (vnode.shapeFlag & 4 /* STATEFUL_COMPONENT */) {
|
|
value = vnode.component.proxy;
|
|
}
|
|
else {
|
|
value = vnode.el;
|
|
}
|
|
}
|
|
const { i: owner, r: ref } = rawRef;
|
|
if ( !owner) {
|
|
warn(`Missing ref owner context. ref cannot be used on hoisted vnodes. ` +
|
|
`A vnode with ref must be created inside the render function.`);
|
|
return;
|
|
}
|
|
const oldRef = oldRawRef && oldRawRef.r;
|
|
const refs = owner.refs === EMPTY_OBJ ? (owner.refs = {}) : owner.refs;
|
|
const setupState = owner.setupState;
|
|
// unset old ref
|
|
if (oldRef != null && oldRef !== ref) {
|
|
if (isString(oldRef)) {
|
|
refs[oldRef] = null;
|
|
if (hasOwn(setupState, oldRef)) {
|
|
setupState[oldRef] = null;
|
|
}
|
|
}
|
|
else if (isRef(oldRef)) {
|
|
oldRef.value = null;
|
|
}
|
|
}
|
|
if (isString(ref)) {
|
|
const doSet = () => {
|
|
refs[ref] = value;
|
|
if (hasOwn(setupState, ref)) {
|
|
setupState[ref] = value;
|
|
}
|
|
};
|
|
// #1789: for non-null values, set them after render
|
|
// null values means this is unmount and it should not overwrite another
|
|
// ref with the same key
|
|
if (value) {
|
|
doSet.id = -1;
|
|
queuePostRenderEffect(doSet, parentSuspense);
|
|
}
|
|
else {
|
|
doSet();
|
|
}
|
|
}
|
|
else if (isRef(ref)) {
|
|
const doSet = () => {
|
|
ref.value = value;
|
|
};
|
|
if (value) {
|
|
doSet.id = -1;
|
|
queuePostRenderEffect(doSet, parentSuspense);
|
|
}
|
|
else {
|
|
doSet();
|
|
}
|
|
}
|
|
else if (isFunction(ref)) {
|
|
callWithErrorHandling(ref, parentComponent, 12 /* FUNCTION_REF */, [
|
|
value,
|
|
refs
|
|
]);
|
|
}
|
|
else {
|
|
warn('Invalid template ref type:', value, `(${typeof value})`);
|
|
}
|
|
};
|
|
/**
|
|
* The createRenderer function accepts two generic arguments:
|
|
* HostNode and HostElement, corresponding to Node and Element types in the
|
|
* host environment. For example, for runtime-dom, HostNode would be the DOM
|
|
* `Node` interface and HostElement would be the DOM `Element` interface.
|
|
*
|
|
* Custom renderers can pass in the platform specific types like this:
|
|
*
|
|
* ``` js
|
|
* const { render, createApp } = createRenderer<Node, Element>({
|
|
* patchProp,
|
|
* ...nodeOps
|
|
* })
|
|
* ```
|
|
*/
|
|
function createRenderer(options) {
|
|
return baseCreateRenderer(options);
|
|
}
|
|
// Separate API for creating hydration-enabled renderer.
|
|
// Hydration logic is only used when calling this function, making it
|
|
// tree-shakable.
|
|
function createHydrationRenderer(options) {
|
|
return baseCreateRenderer(options, createHydrationFunctions);
|
|
}
|
|
// implementation
|
|
function baseCreateRenderer(options, createHydrationFns) {
|
|
const { insert: hostInsert, remove: hostRemove, patchProp: hostPatchProp, forcePatchProp: hostForcePatchProp, createElement: hostCreateElement, createText: hostCreateText, createComment: hostCreateComment, setText: hostSetText, setElementText: hostSetElementText, parentNode: hostParentNode, nextSibling: hostNextSibling, setScopeId: hostSetScopeId = NOOP, cloneNode: hostCloneNode, insertStaticContent: hostInsertStaticContent } = options;
|
|
// Note: functions inside this closure should use `const xxx = () => {}`
|
|
// style in order to prevent being inlined by minifiers.
|
|
const patch = (n1, n2, container, anchor = null, parentComponent = null, parentSuspense = null, isSVG = false, optimized = false) => {
|
|
// patching & not same type, unmount old tree
|
|
if (n1 && !isSameVNodeType(n1, n2)) {
|
|
anchor = getNextHostNode(n1);
|
|
unmount(n1, parentComponent, parentSuspense, true);
|
|
n1 = null;
|
|
}
|
|
if (n2.patchFlag === -2 /* BAIL */) {
|
|
optimized = false;
|
|
n2.dynamicChildren = null;
|
|
}
|
|
const { type, ref, shapeFlag } = n2;
|
|
switch (type) {
|
|
case Text:
|
|
processText(n1, n2, container, anchor);
|
|
break;
|
|
case Comment:
|
|
processCommentNode(n1, n2, container, anchor);
|
|
break;
|
|
case Static:
|
|
if (n1 == null) {
|
|
mountStaticNode(n2, container, anchor, isSVG);
|
|
}
|
|
else {
|
|
patchStaticNode(n1, n2, container, isSVG);
|
|
}
|
|
break;
|
|
case Fragment:
|
|
processFragment(n1, n2, container, anchor, parentComponent, parentSuspense, isSVG, optimized);
|
|
break;
|
|
default:
|
|
if (shapeFlag & 1 /* ELEMENT */) {
|
|
processElement(n1, n2, container, anchor, parentComponent, parentSuspense, isSVG, optimized);
|
|
}
|
|
else if (shapeFlag & 6 /* COMPONENT */) {
|
|
processComponent(n1, n2, container, anchor, parentComponent, parentSuspense, isSVG, optimized);
|
|
}
|
|
else if (shapeFlag & 64 /* TELEPORT */) {
|
|
type.process(n1, n2, container, anchor, parentComponent, parentSuspense, isSVG, optimized, internals);
|
|
}
|
|
else if ( shapeFlag & 128 /* SUSPENSE */) {
|
|
type.process(n1, n2, container, anchor, parentComponent, parentSuspense, isSVG, optimized, internals);
|
|
}
|
|
else {
|
|
warn('Invalid VNode type:', type, `(${typeof type})`);
|
|
}
|
|
}
|
|
// set ref
|
|
if (ref != null && parentComponent) {
|
|
setRef(ref, n1 && n1.ref, parentComponent, parentSuspense, n2);
|
|
}
|
|
};
|
|
const processText = (n1, n2, container, anchor) => {
|
|
if (n1 == null) {
|
|
hostInsert((n2.el = hostCreateText(n2.children)), container, anchor);
|
|
}
|
|
else {
|
|
const el = (n2.el = n1.el);
|
|
if (n2.children !== n1.children) {
|
|
hostSetText(el, n2.children);
|
|
}
|
|
}
|
|
};
|
|
const processCommentNode = (n1, n2, container, anchor) => {
|
|
if (n1 == null) {
|
|
hostInsert((n2.el = hostCreateComment(n2.children || '')), container, anchor);
|
|
}
|
|
else {
|
|
// there's no support for dynamic comments
|
|
n2.el = n1.el;
|
|
}
|
|
};
|
|
const mountStaticNode = (n2, container, anchor, isSVG) => {
|
|
[n2.el, n2.anchor] = hostInsertStaticContent(n2.children, container, anchor, isSVG);
|
|
};
|
|
/**
|
|
* Dev / HMR only
|
|
*/
|
|
const patchStaticNode = (n1, n2, container, isSVG) => {
|
|
// static nodes are only patched during dev for HMR
|
|
if (n2.children !== n1.children) {
|
|
const anchor = hostNextSibling(n1.anchor);
|
|
// remove existing
|
|
removeStaticNode(n1);
|
|
[n2.el, n2.anchor] = hostInsertStaticContent(n2.children, container, anchor, isSVG);
|
|
}
|
|
else {
|
|
n2.el = n1.el;
|
|
n2.anchor = n1.anchor;
|
|
}
|
|
};
|
|
/**
|
|
* Dev / HMR only
|
|
*/
|
|
const moveStaticNode = (vnode, container, anchor) => {
|
|
let cur = vnode.el;
|
|
const end = vnode.anchor;
|
|
while (cur && cur !== end) {
|
|
const next = hostNextSibling(cur);
|
|
hostInsert(cur, container, anchor);
|
|
cur = next;
|
|
}
|
|
hostInsert(end, container, anchor);
|
|
};
|
|
/**
|
|
* Dev / HMR only
|
|
*/
|
|
const removeStaticNode = (vnode) => {
|
|
let cur = vnode.el;
|
|
while (cur && cur !== vnode.anchor) {
|
|
const next = hostNextSibling(cur);
|
|
hostRemove(cur);
|
|
cur = next;
|
|
}
|
|
hostRemove(vnode.anchor);
|
|
};
|
|
const processElement = (n1, n2, container, anchor, parentComponent, parentSuspense, isSVG, optimized) => {
|
|
isSVG = isSVG || n2.type === 'svg';
|
|
if (n1 == null) {
|
|
mountElement(n2, container, anchor, parentComponent, parentSuspense, isSVG, optimized);
|
|
}
|
|
else {
|
|
patchElement(n1, n2, parentComponent, parentSuspense, isSVG, optimized);
|
|
}
|
|
};
|
|
const mountElement = (vnode, container, anchor, parentComponent, parentSuspense, isSVG, optimized) => {
|
|
let el;
|
|
let vnodeHook;
|
|
const { type, props, shapeFlag, transition, scopeId, patchFlag, dirs } = vnode;
|
|
{
|
|
el = vnode.el = hostCreateElement(vnode.type, isSVG, props && props.is);
|
|
// mount children first, since some props may rely on child content
|
|
// being already rendered, e.g. `<select value>`
|
|
if (shapeFlag & 8 /* TEXT_CHILDREN */) {
|
|
hostSetElementText(el, vnode.children);
|
|
}
|
|
else if (shapeFlag & 16 /* ARRAY_CHILDREN */) {
|
|
mountChildren(vnode.children, el, null, parentComponent, parentSuspense, isSVG && type !== 'foreignObject', optimized || !!vnode.dynamicChildren);
|
|
}
|
|
if (dirs) {
|
|
invokeDirectiveHook(vnode, null, parentComponent, 'created');
|
|
}
|
|
// props
|
|
if (props) {
|
|
for (const key in props) {
|
|
if (!isReservedProp(key)) {
|
|
hostPatchProp(el, key, null, props[key], isSVG, vnode.children, parentComponent, parentSuspense, unmountChildren);
|
|
}
|
|
}
|
|
if ((vnodeHook = props.onVnodeBeforeMount)) {
|
|
invokeVNodeHook(vnodeHook, parentComponent, vnode);
|
|
}
|
|
}
|
|
// scopeId
|
|
setScopeId(el, scopeId, vnode, parentComponent);
|
|
}
|
|
{
|
|
Object.defineProperty(el, '__vnode', {
|
|
value: vnode,
|
|
enumerable: false
|
|
});
|
|
Object.defineProperty(el, '__vueParentComponent', {
|
|
value: parentComponent,
|
|
enumerable: false
|
|
});
|
|
}
|
|
if (dirs) {
|
|
invokeDirectiveHook(vnode, null, parentComponent, 'beforeMount');
|
|
}
|
|
// #1583 For inside suspense + suspense not resolved case, enter hook should call when suspense resolved
|
|
// #1689 For inside suspense + suspense resolved case, just call it
|
|
const needCallTransitionHooks = (!parentSuspense || (parentSuspense && !parentSuspense.pendingBranch)) &&
|
|
transition &&
|
|
!transition.persisted;
|
|
if (needCallTransitionHooks) {
|
|
transition.beforeEnter(el);
|
|
}
|
|
hostInsert(el, container, anchor);
|
|
if ((vnodeHook = props && props.onVnodeMounted) ||
|
|
needCallTransitionHooks ||
|
|
dirs) {
|
|
queuePostRenderEffect(() => {
|
|
vnodeHook && invokeVNodeHook(vnodeHook, parentComponent, vnode);
|
|
needCallTransitionHooks && transition.enter(el);
|
|
dirs && invokeDirectiveHook(vnode, null, parentComponent, 'mounted');
|
|
}, parentSuspense);
|
|
}
|
|
};
|
|
const setScopeId = (el, scopeId, vnode, parentComponent) => {
|
|
if (scopeId) {
|
|
hostSetScopeId(el, scopeId);
|
|
}
|
|
if (parentComponent) {
|
|
const treeOwnerId = parentComponent.type.__scopeId;
|
|
// vnode's own scopeId and the current patched component's scopeId is
|
|
// different - this is a slot content node.
|
|
if (treeOwnerId && treeOwnerId !== scopeId) {
|
|
hostSetScopeId(el, treeOwnerId + '-s');
|
|
}
|
|
let subTree = parentComponent.subTree;
|
|
if ( subTree.type === Fragment) {
|
|
subTree =
|
|
filterSingleRoot(subTree.children) || subTree;
|
|
}
|
|
if (vnode === subTree) {
|
|
setScopeId(el, parentComponent.vnode.scopeId, parentComponent.vnode, parentComponent.parent);
|
|
}
|
|
}
|
|
};
|
|
const mountChildren = (children, container, anchor, parentComponent, parentSuspense, isSVG, optimized, start = 0) => {
|
|
for (let i = start; i < children.length; i++) {
|
|
const child = (children[i] = optimized
|
|
? cloneIfMounted(children[i])
|
|
: normalizeVNode(children[i]));
|
|
patch(null, child, container, anchor, parentComponent, parentSuspense, isSVG, optimized);
|
|
}
|
|
};
|
|
const patchElement = (n1, n2, parentComponent, parentSuspense, isSVG, optimized) => {
|
|
const el = (n2.el = n1.el);
|
|
let { patchFlag, dynamicChildren, dirs } = n2;
|
|
// #1426 take the old vnode's patch flag into account since user may clone a
|
|
// compiler-generated vnode, which de-opts to FULL_PROPS
|
|
patchFlag |= n1.patchFlag & 16 /* FULL_PROPS */;
|
|
const oldProps = n1.props || EMPTY_OBJ;
|
|
const newProps = n2.props || EMPTY_OBJ;
|
|
let vnodeHook;
|
|
if ((vnodeHook = newProps.onVnodeBeforeUpdate)) {
|
|
invokeVNodeHook(vnodeHook, parentComponent, n2, n1);
|
|
}
|
|
if (dirs) {
|
|
invokeDirectiveHook(n2, n1, parentComponent, 'beforeUpdate');
|
|
}
|
|
if ( isHmrUpdating) {
|
|
// HMR updated, force full diff
|
|
patchFlag = 0;
|
|
optimized = false;
|
|
dynamicChildren = null;
|
|
}
|
|
if (patchFlag > 0) {
|
|
// the presence of a patchFlag means this element's render code was
|
|
// generated by the compiler and can take the fast path.
|
|
// in this path old node and new node are guaranteed to have the same shape
|
|
// (i.e. at the exact same position in the source template)
|
|
if (patchFlag & 16 /* FULL_PROPS */) {
|
|
// element props contain dynamic keys, full diff needed
|
|
patchProps(el, n2, oldProps, newProps, parentComponent, parentSuspense, isSVG);
|
|
}
|
|
else {
|
|
// class
|
|
// this flag is matched when the element has dynamic class bindings.
|
|
if (patchFlag & 2 /* CLASS */) {
|
|
if (oldProps.class !== newProps.class) {
|
|
hostPatchProp(el, 'class', null, newProps.class, isSVG);
|
|
}
|
|
}
|
|
// style
|
|
// this flag is matched when the element has dynamic style bindings
|
|
if (patchFlag & 4 /* STYLE */) {
|
|
hostPatchProp(el, 'style', oldProps.style, newProps.style, isSVG);
|
|
}
|
|
// props
|
|
// This flag is matched when the element has dynamic prop/attr bindings
|
|
// other than class and style. The keys of dynamic prop/attrs are saved for
|
|
// faster iteration.
|
|
// Note dynamic keys like :[foo]="bar" will cause this optimization to
|
|
// bail out and go through a full diff because we need to unset the old key
|
|
if (patchFlag & 8 /* PROPS */) {
|
|
// if the flag is present then dynamicProps must be non-null
|
|
const propsToUpdate = n2.dynamicProps;
|
|
for (let i = 0; i < propsToUpdate.length; i++) {
|
|
const key = propsToUpdate[i];
|
|
const prev = oldProps[key];
|
|
const next = newProps[key];
|
|
if (next !== prev ||
|
|
(hostForcePatchProp && hostForcePatchProp(el, key))) {
|
|
hostPatchProp(el, key, prev, next, isSVG, n1.children, parentComponent, parentSuspense, unmountChildren);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
// text
|
|
// This flag is matched when the element has only dynamic text children.
|
|
if (patchFlag & 1 /* TEXT */) {
|
|
if (n1.children !== n2.children) {
|
|
hostSetElementText(el, n2.children);
|
|
}
|
|
}
|
|
}
|
|
else if (!optimized && dynamicChildren == null) {
|
|
// unoptimized, full diff
|
|
patchProps(el, n2, oldProps, newProps, parentComponent, parentSuspense, isSVG);
|
|
}
|
|
const areChildrenSVG = isSVG && n2.type !== 'foreignObject';
|
|
if (dynamicChildren) {
|
|
patchBlockChildren(n1.dynamicChildren, dynamicChildren, el, parentComponent, parentSuspense, areChildrenSVG);
|
|
if (
|
|
parentComponent &&
|
|
parentComponent.type.__hmrId) {
|
|
traverseStaticChildren(n1, n2);
|
|
}
|
|
}
|
|
else if (!optimized) {
|
|
// full diff
|
|
patchChildren(n1, n2, el, null, parentComponent, parentSuspense, areChildrenSVG);
|
|
}
|
|
if ((vnodeHook = newProps.onVnodeUpdated) || dirs) {
|
|
queuePostRenderEffect(() => {
|
|
vnodeHook && invokeVNodeHook(vnodeHook, parentComponent, n2, n1);
|
|
dirs && invokeDirectiveHook(n2, n1, parentComponent, 'updated');
|
|
}, parentSuspense);
|
|
}
|
|
};
|
|
// The fast path for blocks.
|
|
const patchBlockChildren = (oldChildren, newChildren, fallbackContainer, parentComponent, parentSuspense, isSVG) => {
|
|
for (let i = 0; i < newChildren.length; i++) {
|
|
const oldVNode = oldChildren[i];
|
|
const newVNode = newChildren[i];
|
|
// Determine the container (parent element) for the patch.
|
|
const container =
|
|
// - In the case of a Fragment, we need to provide the actual parent
|
|
// of the Fragment itself so it can move its children.
|
|
oldVNode.type === Fragment ||
|
|
// - In the case of different nodes, there is going to be a replacement
|
|
// which also requires the correct parent container
|
|
!isSameVNodeType(oldVNode, newVNode) ||
|
|
// - In the case of a component, it could contain anything.
|
|
oldVNode.shapeFlag & 6 /* COMPONENT */ ||
|
|
oldVNode.shapeFlag & 64 /* TELEPORT */
|
|
? hostParentNode(oldVNode.el)
|
|
: // In other cases, the parent container is not actually used so we
|
|
// just pass the block element here to avoid a DOM parentNode call.
|
|
fallbackContainer;
|
|
patch(oldVNode, newVNode, container, null, parentComponent, parentSuspense, isSVG, true);
|
|
}
|
|
};
|
|
const patchProps = (el, vnode, oldProps, newProps, parentComponent, parentSuspense, isSVG) => {
|
|
if (oldProps !== newProps) {
|
|
for (const key in newProps) {
|
|
// empty string is not valid prop
|
|
if (isReservedProp(key))
|
|
continue;
|
|
const next = newProps[key];
|
|
const prev = oldProps[key];
|
|
if (next !== prev ||
|
|
(hostForcePatchProp && hostForcePatchProp(el, key))) {
|
|
hostPatchProp(el, key, prev, next, isSVG, vnode.children, parentComponent, parentSuspense, unmountChildren);
|
|
}
|
|
}
|
|
if (oldProps !== EMPTY_OBJ) {
|
|
for (const key in oldProps) {
|
|
if (!isReservedProp(key) && !(key in newProps)) {
|
|
hostPatchProp(el, key, oldProps[key], null, isSVG, vnode.children, parentComponent, parentSuspense, unmountChildren);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
};
|
|
const processFragment = (n1, n2, container, anchor, parentComponent, parentSuspense, isSVG, optimized) => {
|
|
const fragmentStartAnchor = (n2.el = n1 ? n1.el : hostCreateText(''));
|
|
const fragmentEndAnchor = (n2.anchor = n1 ? n1.anchor : hostCreateText(''));
|
|
let { patchFlag, dynamicChildren } = n2;
|
|
if (patchFlag > 0) {
|
|
optimized = true;
|
|
}
|
|
if ( isHmrUpdating) {
|
|
// HMR updated, force full diff
|
|
patchFlag = 0;
|
|
optimized = false;
|
|
dynamicChildren = null;
|
|
}
|
|
if (n1 == null) {
|
|
hostInsert(fragmentStartAnchor, container, anchor);
|
|
hostInsert(fragmentEndAnchor, container, anchor);
|
|
// a fragment can only have array children
|
|
// since they are either generated by the compiler, or implicitly created
|
|
// from arrays.
|
|
mountChildren(n2.children, container, fragmentEndAnchor, parentComponent, parentSuspense, isSVG, optimized);
|
|
}
|
|
else {
|
|
if (patchFlag > 0 &&
|
|
patchFlag & 64 /* STABLE_FRAGMENT */ &&
|
|
dynamicChildren) {
|
|
// a stable fragment (template root or <template v-for>) doesn't need to
|
|
// patch children order, but it may contain dynamicChildren.
|
|
patchBlockChildren(n1.dynamicChildren, dynamicChildren, container, parentComponent, parentSuspense, isSVG);
|
|
if ( parentComponent && parentComponent.type.__hmrId) {
|
|
traverseStaticChildren(n1, n2);
|
|
}
|
|
else if (
|
|
// #2080 if the stable fragment has a key, it's a <template v-for> that may
|
|
// get moved around. Make sure all root level vnodes inherit el.
|
|
// #2134 or if it's a component root, it may also get moved around
|
|
// as the component is being moved.
|
|
n2.key != null ||
|
|
(parentComponent && n2 === parentComponent.subTree)) {
|
|
traverseStaticChildren(n1, n2, true /* shallow */);
|
|
}
|
|
}
|
|
else {
|
|
// keyed / unkeyed, or manual fragments.
|
|
// for keyed & unkeyed, since they are compiler generated from v-for,
|
|
// each child is guaranteed to be a block so the fragment will never
|
|
// have dynamicChildren.
|
|
patchChildren(n1, n2, container, fragmentEndAnchor, parentComponent, parentSuspense, isSVG, optimized);
|
|
}
|
|
}
|
|
};
|
|
const processComponent = (n1, n2, container, anchor, parentComponent, parentSuspense, isSVG, optimized) => {
|
|
if (n1 == null) {
|
|
if (n2.shapeFlag & 512 /* COMPONENT_KEPT_ALIVE */) {
|
|
parentComponent.ctx.activate(n2, container, anchor, isSVG, optimized);
|
|
}
|
|
else {
|
|
mountComponent(n2, container, anchor, parentComponent, parentSuspense, isSVG, optimized);
|
|
}
|
|
}
|
|
else {
|
|
updateComponent(n1, n2, optimized);
|
|
}
|
|
};
|
|
const mountComponent = (initialVNode, container, anchor, parentComponent, parentSuspense, isSVG, optimized) => {
|
|
const instance = (initialVNode.component = createComponentInstance(initialVNode, parentComponent, parentSuspense));
|
|
if ( instance.type.__hmrId) {
|
|
registerHMR(instance);
|
|
}
|
|
{
|
|
pushWarningContext(initialVNode);
|
|
startMeasure(instance, `mount`);
|
|
}
|
|
// inject renderer internals for keepAlive
|
|
if (isKeepAlive(initialVNode)) {
|
|
instance.ctx.renderer = internals;
|
|
}
|
|
// resolve props and slots for setup context
|
|
{
|
|
startMeasure(instance, `init`);
|
|
}
|
|
setupComponent(instance);
|
|
{
|
|
endMeasure(instance, `init`);
|
|
}
|
|
// setup() is async. This component relies on async logic to be resolved
|
|
// before proceeding
|
|
if ( instance.asyncDep) {
|
|
parentSuspense && parentSuspense.registerDep(instance, setupRenderEffect);
|
|
// Give it a placeholder if this is not hydration
|
|
// TODO handle self-defined fallback
|
|
if (!initialVNode.el) {
|
|
const placeholder = (instance.subTree = createVNode(Comment));
|
|
processCommentNode(null, placeholder, container, anchor);
|
|
}
|
|
return;
|
|
}
|
|
setupRenderEffect(instance, initialVNode, container, anchor, parentSuspense, isSVG, optimized);
|
|
{
|
|
popWarningContext();
|
|
endMeasure(instance, `mount`);
|
|
}
|
|
};
|
|
const updateComponent = (n1, n2, optimized) => {
|
|
const instance = (n2.component = n1.component);
|
|
if (shouldUpdateComponent(n1, n2, optimized)) {
|
|
if (
|
|
instance.asyncDep &&
|
|
!instance.asyncResolved) {
|
|
// async & still pending - just update props and slots
|
|
// since the component's reactive effect for render isn't set-up yet
|
|
{
|
|
pushWarningContext(n2);
|
|
}
|
|
updateComponentPreRender(instance, n2, optimized);
|
|
{
|
|
popWarningContext();
|
|
}
|
|
return;
|
|
}
|
|
else {
|
|
// normal update
|
|
instance.next = n2;
|
|
// in case the child component is also queued, remove it to avoid
|
|
// double updating the same child component in the same flush.
|
|
invalidateJob(instance.update);
|
|
// instance.update is the reactive effect runner.
|
|
instance.update();
|
|
}
|
|
}
|
|
else {
|
|
// no update needed. just copy over properties
|
|
n2.component = n1.component;
|
|
n2.el = n1.el;
|
|
instance.vnode = n2;
|
|
}
|
|
};
|
|
const setupRenderEffect = (instance, initialVNode, container, anchor, parentSuspense, isSVG, optimized) => {
|
|
// create reactive effect for rendering
|
|
instance.update = effect(function componentEffect() {
|
|
if (!instance.isMounted) {
|
|
let vnodeHook;
|
|
const { el, props } = initialVNode;
|
|
const { bm, m, parent } = instance;
|
|
// beforeMount hook
|
|
if (bm) {
|
|
invokeArrayFns(bm);
|
|
}
|
|
// onVnodeBeforeMount
|
|
if ((vnodeHook = props && props.onVnodeBeforeMount)) {
|
|
invokeVNodeHook(vnodeHook, parent, initialVNode);
|
|
}
|
|
// render
|
|
{
|
|
startMeasure(instance, `render`);
|
|
}
|
|
const subTree = (instance.subTree = renderComponentRoot(instance));
|
|
{
|
|
endMeasure(instance, `render`);
|
|
}
|
|
if (el && hydrateNode) {
|
|
{
|
|
startMeasure(instance, `hydrate`);
|
|
}
|
|
// vnode has adopted host node - perform hydration instead of mount.
|
|
hydrateNode(initialVNode.el, subTree, instance, parentSuspense);
|
|
{
|
|
endMeasure(instance, `hydrate`);
|
|
}
|
|
}
|
|
else {
|
|
{
|
|
startMeasure(instance, `patch`);
|
|
}
|
|
patch(null, subTree, container, anchor, instance, parentSuspense, isSVG);
|
|
{
|
|
endMeasure(instance, `patch`);
|
|
}
|
|
initialVNode.el = subTree.el;
|
|
}
|
|
// mounted hook
|
|
if (m) {
|
|
queuePostRenderEffect(m, parentSuspense);
|
|
}
|
|
// onVnodeMounted
|
|
if ((vnodeHook = props && props.onVnodeMounted)) {
|
|
queuePostRenderEffect(() => {
|
|
invokeVNodeHook(vnodeHook, parent, initialVNode);
|
|
}, parentSuspense);
|
|
}
|
|
// activated hook for keep-alive roots.
|
|
// #1742 activated hook must be accessed after first render
|
|
// since the hook may be injected by a child keep-alive
|
|
const { a } = instance;
|
|
if (a &&
|
|
initialVNode.shapeFlag & 256 /* COMPONENT_SHOULD_KEEP_ALIVE */) {
|
|
queuePostRenderEffect(a, parentSuspense);
|
|
}
|
|
instance.isMounted = true;
|
|
}
|
|
else {
|
|
// updateComponent
|
|
// This is triggered by mutation of component's own state (next: null)
|
|
// OR parent calling processComponent (next: VNode)
|
|
let { next, bu, u, parent, vnode } = instance;
|
|
let originNext = next;
|
|
let vnodeHook;
|
|
{
|
|
pushWarningContext(next || instance.vnode);
|
|
}
|
|
if (next) {
|
|
next.el = vnode.el;
|
|
updateComponentPreRender(instance, next, optimized);
|
|
}
|
|
else {
|
|
next = vnode;
|
|
}
|
|
// beforeUpdate hook
|
|
if (bu) {
|
|
invokeArrayFns(bu);
|
|
}
|
|
// onVnodeBeforeUpdate
|
|
if ((vnodeHook = next.props && next.props.onVnodeBeforeUpdate)) {
|
|
invokeVNodeHook(vnodeHook, parent, next, vnode);
|
|
}
|
|
// render
|
|
{
|
|
startMeasure(instance, `render`);
|
|
}
|
|
const nextTree = renderComponentRoot(instance);
|
|
{
|
|
endMeasure(instance, `render`);
|
|
}
|
|
const prevTree = instance.subTree;
|
|
instance.subTree = nextTree;
|
|
{
|
|
startMeasure(instance, `patch`);
|
|
}
|
|
patch(prevTree, nextTree,
|
|
// parent may have changed if it's in a teleport
|
|
hostParentNode(prevTree.el),
|
|
// anchor may have changed if it's in a fragment
|
|
getNextHostNode(prevTree), instance, parentSuspense, isSVG);
|
|
{
|
|
endMeasure(instance, `patch`);
|
|
}
|
|
next.el = nextTree.el;
|
|
if (originNext === null) {
|
|
// self-triggered update. In case of HOC, update parent component
|
|
// vnode el. HOC is indicated by parent instance's subTree pointing
|
|
// to child component's vnode
|
|
updateHOCHostEl(instance, nextTree.el);
|
|
}
|
|
// updated hook
|
|
if (u) {
|
|
queuePostRenderEffect(u, parentSuspense);
|
|
}
|
|
// onVnodeUpdated
|
|
if ((vnodeHook = next.props && next.props.onVnodeUpdated)) {
|
|
queuePostRenderEffect(() => {
|
|
invokeVNodeHook(vnodeHook, parent, next, vnode);
|
|
}, parentSuspense);
|
|
}
|
|
{
|
|
devtoolsComponentUpdated(instance);
|
|
}
|
|
{
|
|
popWarningContext();
|
|
}
|
|
}
|
|
}, createDevEffectOptions(instance) );
|
|
};
|
|
const updateComponentPreRender = (instance, nextVNode, optimized) => {
|
|
nextVNode.component = instance;
|
|
const prevProps = instance.vnode.props;
|
|
instance.vnode = nextVNode;
|
|
instance.next = null;
|
|
updateProps(instance, nextVNode.props, prevProps, optimized);
|
|
updateSlots(instance, nextVNode.children);
|
|
// props update may have triggered pre-flush watchers.
|
|
// flush them before the render update.
|
|
flushPreFlushCbs(undefined, instance.update);
|
|
};
|
|
const patchChildren = (n1, n2, container, anchor, parentComponent, parentSuspense, isSVG, optimized = false) => {
|
|
const c1 = n1 && n1.children;
|
|
const prevShapeFlag = n1 ? n1.shapeFlag : 0;
|
|
const c2 = n2.children;
|
|
const { patchFlag, shapeFlag } = n2;
|
|
// fast path
|
|
if (patchFlag > 0) {
|
|
if (patchFlag & 128 /* KEYED_FRAGMENT */) {
|
|
// this could be either fully-keyed or mixed (some keyed some not)
|
|
// presence of patchFlag means children are guaranteed to be arrays
|
|
patchKeyedChildren(c1, c2, container, anchor, parentComponent, parentSuspense, isSVG, optimized);
|
|
return;
|
|
}
|
|
else if (patchFlag & 256 /* UNKEYED_FRAGMENT */) {
|
|
// unkeyed
|
|
patchUnkeyedChildren(c1, c2, container, anchor, parentComponent, parentSuspense, isSVG, optimized);
|
|
return;
|
|
}
|
|
}
|
|
// children has 3 possibilities: text, array or no children.
|
|
if (shapeFlag & 8 /* TEXT_CHILDREN */) {
|
|
// text children fast path
|
|
if (prevShapeFlag & 16 /* ARRAY_CHILDREN */) {
|
|
unmountChildren(c1, parentComponent, parentSuspense);
|
|
}
|
|
if (c2 !== c1) {
|
|
hostSetElementText(container, c2);
|
|
}
|
|
}
|
|
else {
|
|
if (prevShapeFlag & 16 /* ARRAY_CHILDREN */) {
|
|
// prev children was array
|
|
if (shapeFlag & 16 /* ARRAY_CHILDREN */) {
|
|
// two arrays, cannot assume anything, do full diff
|
|
patchKeyedChildren(c1, c2, container, anchor, parentComponent, parentSuspense, isSVG, optimized);
|
|
}
|
|
else {
|
|
// no new children, just unmount old
|
|
unmountChildren(c1, parentComponent, parentSuspense, true);
|
|
}
|
|
}
|
|
else {
|
|
// prev children was text OR null
|
|
// new children is array OR null
|
|
if (prevShapeFlag & 8 /* TEXT_CHILDREN */) {
|
|
hostSetElementText(container, '');
|
|
}
|
|
// mount new if array
|
|
if (shapeFlag & 16 /* ARRAY_CHILDREN */) {
|
|
mountChildren(c2, container, anchor, parentComponent, parentSuspense, isSVG, optimized);
|
|
}
|
|
}
|
|
}
|
|
};
|
|
const patchUnkeyedChildren = (c1, c2, container, anchor, parentComponent, parentSuspense, isSVG, optimized) => {
|
|
c1 = c1 || EMPTY_ARR;
|
|
c2 = c2 || EMPTY_ARR;
|
|
const oldLength = c1.length;
|
|
const newLength = c2.length;
|
|
const commonLength = Math.min(oldLength, newLength);
|
|
let i;
|
|
for (i = 0; i < commonLength; i++) {
|
|
const nextChild = (c2[i] = optimized
|
|
? cloneIfMounted(c2[i])
|
|
: normalizeVNode(c2[i]));
|
|
patch(c1[i], nextChild, container, null, parentComponent, parentSuspense, isSVG, optimized);
|
|
}
|
|
if (oldLength > newLength) {
|
|
// remove old
|
|
unmountChildren(c1, parentComponent, parentSuspense, true, false, commonLength);
|
|
}
|
|
else {
|
|
// mount new
|
|
mountChildren(c2, container, anchor, parentComponent, parentSuspense, isSVG, optimized, commonLength);
|
|
}
|
|
};
|
|
// can be all-keyed or mixed
|
|
const patchKeyedChildren = (c1, c2, container, parentAnchor, parentComponent, parentSuspense, isSVG, optimized) => {
|
|
let i = 0;
|
|
const l2 = c2.length;
|
|
let e1 = c1.length - 1; // prev ending index
|
|
let e2 = l2 - 1; // next ending index
|
|
// 1. sync from start
|
|
// (a b) c
|
|
// (a b) d e
|
|
while (i <= e1 && i <= e2) {
|
|
const n1 = c1[i];
|
|
const n2 = (c2[i] = optimized
|
|
? cloneIfMounted(c2[i])
|
|
: normalizeVNode(c2[i]));
|
|
if (isSameVNodeType(n1, n2)) {
|
|
patch(n1, n2, container, null, parentComponent, parentSuspense, isSVG, optimized);
|
|
}
|
|
else {
|
|
break;
|
|
}
|
|
i++;
|
|
}
|
|
// 2. sync from end
|
|
// a (b c)
|
|
// d e (b c)
|
|
while (i <= e1 && i <= e2) {
|
|
const n1 = c1[e1];
|
|
const n2 = (c2[e2] = optimized
|
|
? cloneIfMounted(c2[e2])
|
|
: normalizeVNode(c2[e2]));
|
|
if (isSameVNodeType(n1, n2)) {
|
|
patch(n1, n2, container, null, parentComponent, parentSuspense, isSVG, optimized);
|
|
}
|
|
else {
|
|
break;
|
|
}
|
|
e1--;
|
|
e2--;
|
|
}
|
|
// 3. common sequence + mount
|
|
// (a b)
|
|
// (a b) c
|
|
// i = 2, e1 = 1, e2 = 2
|
|
// (a b)
|
|
// c (a b)
|
|
// i = 0, e1 = -1, e2 = 0
|
|
if (i > e1) {
|
|
if (i <= e2) {
|
|
const nextPos = e2 + 1;
|
|
const anchor = nextPos < l2 ? c2[nextPos].el : parentAnchor;
|
|
while (i <= e2) {
|
|
patch(null, (c2[i] = optimized
|
|
? cloneIfMounted(c2[i])
|
|
: normalizeVNode(c2[i])), container, anchor, parentComponent, parentSuspense, isSVG);
|
|
i++;
|
|
}
|
|
}
|
|
}
|
|
// 4. common sequence + unmount
|
|
// (a b) c
|
|
// (a b)
|
|
// i = 2, e1 = 2, e2 = 1
|
|
// a (b c)
|
|
// (b c)
|
|
// i = 0, e1 = 0, e2 = -1
|
|
else if (i > e2) {
|
|
while (i <= e1) {
|
|
unmount(c1[i], parentComponent, parentSuspense, true);
|
|
i++;
|
|
}
|
|
}
|
|
// 5. unknown sequence
|
|
// [i ... e1 + 1]: a b [c d e] f g
|
|
// [i ... e2 + 1]: a b [e d c h] f g
|
|
// i = 2, e1 = 4, e2 = 5
|
|
else {
|
|
const s1 = i; // prev starting index
|
|
const s2 = i; // next starting index
|
|
// 5.1 build key:index map for newChildren
|
|
const keyToNewIndexMap = new Map();
|
|
for (i = s2; i <= e2; i++) {
|
|
const nextChild = (c2[i] = optimized
|
|
? cloneIfMounted(c2[i])
|
|
: normalizeVNode(c2[i]));
|
|
if (nextChild.key != null) {
|
|
if ( keyToNewIndexMap.has(nextChild.key)) {
|
|
warn(`Duplicate keys found during update:`, JSON.stringify(nextChild.key), `Make sure keys are unique.`);
|
|
}
|
|
keyToNewIndexMap.set(nextChild.key, i);
|
|
}
|
|
}
|
|
// 5.2 loop through old children left to be patched and try to patch
|
|
// matching nodes & remove nodes that are no longer present
|
|
let j;
|
|
let patched = 0;
|
|
const toBePatched = e2 - s2 + 1;
|
|
let moved = false;
|
|
// used to track whether any node has moved
|
|
let maxNewIndexSoFar = 0;
|
|
// works as Map<newIndex, oldIndex>
|
|
// Note that oldIndex is offset by +1
|
|
// and oldIndex = 0 is a special value indicating the new node has
|
|
// no corresponding old node.
|
|
// used for determining longest stable subsequence
|
|
const newIndexToOldIndexMap = new Array(toBePatched);
|
|
for (i = 0; i < toBePatched; i++)
|
|
newIndexToOldIndexMap[i] = 0;
|
|
for (i = s1; i <= e1; i++) {
|
|
const prevChild = c1[i];
|
|
if (patched >= toBePatched) {
|
|
// all new children have been patched so this can only be a removal
|
|
unmount(prevChild, parentComponent, parentSuspense, true);
|
|
continue;
|
|
}
|
|
let newIndex;
|
|
if (prevChild.key != null) {
|
|
newIndex = keyToNewIndexMap.get(prevChild.key);
|
|
}
|
|
else {
|
|
// key-less node, try to locate a key-less node of the same type
|
|
for (j = s2; j <= e2; j++) {
|
|
if (newIndexToOldIndexMap[j - s2] === 0 &&
|
|
isSameVNodeType(prevChild, c2[j])) {
|
|
newIndex = j;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
if (newIndex === undefined) {
|
|
unmount(prevChild, parentComponent, parentSuspense, true);
|
|
}
|
|
else {
|
|
newIndexToOldIndexMap[newIndex - s2] = i + 1;
|
|
if (newIndex >= maxNewIndexSoFar) {
|
|
maxNewIndexSoFar = newIndex;
|
|
}
|
|
else {
|
|
moved = true;
|
|
}
|
|
patch(prevChild, c2[newIndex], container, null, parentComponent, parentSuspense, isSVG, optimized);
|
|
patched++;
|
|
}
|
|
}
|
|
// 5.3 move and mount
|
|
// generate longest stable subsequence only when nodes have moved
|
|
const increasingNewIndexSequence = moved
|
|
? getSequence(newIndexToOldIndexMap)
|
|
: EMPTY_ARR;
|
|
j = increasingNewIndexSequence.length - 1;
|
|
// looping backwards so that we can use last patched node as anchor
|
|
for (i = toBePatched - 1; i >= 0; i--) {
|
|
const nextIndex = s2 + i;
|
|
const nextChild = c2[nextIndex];
|
|
const anchor = nextIndex + 1 < l2 ? c2[nextIndex + 1].el : parentAnchor;
|
|
if (newIndexToOldIndexMap[i] === 0) {
|
|
// mount new
|
|
patch(null, nextChild, container, anchor, parentComponent, parentSuspense, isSVG);
|
|
}
|
|
else if (moved) {
|
|
// move if:
|
|
// There is no stable subsequence (e.g. a reverse)
|
|
// OR current node is not among the stable sequence
|
|
if (j < 0 || i !== increasingNewIndexSequence[j]) {
|
|
move(nextChild, container, anchor, 2 /* REORDER */);
|
|
}
|
|
else {
|
|
j--;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
};
|
|
const move = (vnode, container, anchor, moveType, parentSuspense = null) => {
|
|
const { el, type, transition, children, shapeFlag } = vnode;
|
|
if (shapeFlag & 6 /* COMPONENT */) {
|
|
move(vnode.component.subTree, container, anchor, moveType);
|
|
return;
|
|
}
|
|
if ( shapeFlag & 128 /* SUSPENSE */) {
|
|
vnode.suspense.move(container, anchor, moveType);
|
|
return;
|
|
}
|
|
if (shapeFlag & 64 /* TELEPORT */) {
|
|
type.move(vnode, container, anchor, internals);
|
|
return;
|
|
}
|
|
if (type === Fragment) {
|
|
hostInsert(el, container, anchor);
|
|
for (let i = 0; i < children.length; i++) {
|
|
move(children[i], container, anchor, moveType);
|
|
}
|
|
hostInsert(vnode.anchor, container, anchor);
|
|
return;
|
|
}
|
|
// static node move can only happen when force updating HMR
|
|
if ( type === Static) {
|
|
moveStaticNode(vnode, container, anchor);
|
|
return;
|
|
}
|
|
// single nodes
|
|
const needTransition = moveType !== 2 /* REORDER */ &&
|
|
shapeFlag & 1 /* ELEMENT */ &&
|
|
transition;
|
|
if (needTransition) {
|
|
if (moveType === 0 /* ENTER */) {
|
|
transition.beforeEnter(el);
|
|
hostInsert(el, container, anchor);
|
|
queuePostRenderEffect(() => transition.enter(el), parentSuspense);
|
|
}
|
|
else {
|
|
const { leave, delayLeave, afterLeave } = transition;
|
|
const remove = () => hostInsert(el, container, anchor);
|
|
const performLeave = () => {
|
|
leave(el, () => {
|
|
remove();
|
|
afterLeave && afterLeave();
|
|
});
|
|
};
|
|
if (delayLeave) {
|
|
delayLeave(el, remove, performLeave);
|
|
}
|
|
else {
|
|
performLeave();
|
|
}
|
|
}
|
|
}
|
|
else {
|
|
hostInsert(el, container, anchor);
|
|
}
|
|
};
|
|
const unmount = (vnode, parentComponent, parentSuspense, doRemove = false, optimized = false) => {
|
|
const { type, props, ref, children, dynamicChildren, shapeFlag, patchFlag, dirs } = vnode;
|
|
// unset ref
|
|
if (ref != null && parentComponent) {
|
|
setRef(ref, null, parentComponent, parentSuspense, null);
|
|
}
|
|
if (shapeFlag & 256 /* COMPONENT_SHOULD_KEEP_ALIVE */) {
|
|
parentComponent.ctx.deactivate(vnode);
|
|
return;
|
|
}
|
|
const shouldInvokeDirs = shapeFlag & 1 /* ELEMENT */ && dirs;
|
|
let vnodeHook;
|
|
if ((vnodeHook = props && props.onVnodeBeforeUnmount)) {
|
|
invokeVNodeHook(vnodeHook, parentComponent, vnode);
|
|
}
|
|
if (shapeFlag & 6 /* COMPONENT */) {
|
|
unmountComponent(vnode.component, parentSuspense, doRemove);
|
|
}
|
|
else {
|
|
if ( shapeFlag & 128 /* SUSPENSE */) {
|
|
vnode.suspense.unmount(parentSuspense, doRemove);
|
|
return;
|
|
}
|
|
if (shouldInvokeDirs) {
|
|
invokeDirectiveHook(vnode, null, parentComponent, 'beforeUnmount');
|
|
}
|
|
if (dynamicChildren &&
|
|
// #1153: fast path should not be taken for non-stable (v-for) fragments
|
|
(type !== Fragment ||
|
|
(patchFlag > 0 && patchFlag & 64 /* STABLE_FRAGMENT */))) {
|
|
// fast path for block nodes: only need to unmount dynamic children.
|
|
unmountChildren(dynamicChildren, parentComponent, parentSuspense, false, true);
|
|
}
|
|
else if ((type === Fragment &&
|
|
(patchFlag & 128 /* KEYED_FRAGMENT */ ||
|
|
patchFlag & 256 /* UNKEYED_FRAGMENT */)) ||
|
|
(!optimized && shapeFlag & 16 /* ARRAY_CHILDREN */)) {
|
|
unmountChildren(children, parentComponent, parentSuspense);
|
|
}
|
|
// an unmounted teleport should always remove its children if not disabled
|
|
if (shapeFlag & 64 /* TELEPORT */ &&
|
|
(doRemove || !isTeleportDisabled(vnode.props))) {
|
|
vnode.type.remove(vnode, internals);
|
|
}
|
|
if (doRemove) {
|
|
remove(vnode);
|
|
}
|
|
}
|
|
if ((vnodeHook = props && props.onVnodeUnmounted) || shouldInvokeDirs) {
|
|
queuePostRenderEffect(() => {
|
|
vnodeHook && invokeVNodeHook(vnodeHook, parentComponent, vnode);
|
|
shouldInvokeDirs &&
|
|
invokeDirectiveHook(vnode, null, parentComponent, 'unmounted');
|
|
}, parentSuspense);
|
|
}
|
|
};
|
|
const remove = vnode => {
|
|
const { type, el, anchor, transition } = vnode;
|
|
if (type === Fragment) {
|
|
removeFragment(el, anchor);
|
|
return;
|
|
}
|
|
if ( type === Static) {
|
|
removeStaticNode(vnode);
|
|
return;
|
|
}
|
|
const performRemove = () => {
|
|
hostRemove(el);
|
|
if (transition && !transition.persisted && transition.afterLeave) {
|
|
transition.afterLeave();
|
|
}
|
|
};
|
|
if (vnode.shapeFlag & 1 /* ELEMENT */ &&
|
|
transition &&
|
|
!transition.persisted) {
|
|
const { leave, delayLeave } = transition;
|
|
const performLeave = () => leave(el, performRemove);
|
|
if (delayLeave) {
|
|
delayLeave(vnode.el, performRemove, performLeave);
|
|
}
|
|
else {
|
|
performLeave();
|
|
}
|
|
}
|
|
else {
|
|
performRemove();
|
|
}
|
|
};
|
|
const removeFragment = (cur, end) => {
|
|
// For fragments, directly remove all contained DOM nodes.
|
|
// (fragment child nodes cannot have transition)
|
|
let next;
|
|
while (cur !== end) {
|
|
next = hostNextSibling(cur);
|
|
hostRemove(cur);
|
|
cur = next;
|
|
}
|
|
hostRemove(end);
|
|
};
|
|
const unmountComponent = (instance, parentSuspense, doRemove) => {
|
|
if ( instance.type.__hmrId) {
|
|
unregisterHMR(instance);
|
|
}
|
|
const { bum, effects, update, subTree, um } = instance;
|
|
// beforeUnmount hook
|
|
if (bum) {
|
|
invokeArrayFns(bum);
|
|
}
|
|
if (effects) {
|
|
for (let i = 0; i < effects.length; i++) {
|
|
stop(effects[i]);
|
|
}
|
|
}
|
|
// update may be null if a component is unmounted before its async
|
|
// setup has resolved.
|
|
if (update) {
|
|
stop(update);
|
|
unmount(subTree, instance, parentSuspense, doRemove);
|
|
}
|
|
// unmounted hook
|
|
if (um) {
|
|
queuePostRenderEffect(um, parentSuspense);
|
|
}
|
|
queuePostRenderEffect(() => {
|
|
instance.isUnmounted = true;
|
|
}, parentSuspense);
|
|
// A component with async dep inside a pending suspense is unmounted before
|
|
// its async dep resolves. This should remove the dep from the suspense, and
|
|
// cause the suspense to resolve immediately if that was the last dep.
|
|
if (
|
|
parentSuspense &&
|
|
parentSuspense.pendingBranch &&
|
|
!parentSuspense.isUnmounted &&
|
|
instance.asyncDep &&
|
|
!instance.asyncResolved &&
|
|
instance.suspenseId === parentSuspense.pendingId) {
|
|
parentSuspense.deps--;
|
|
if (parentSuspense.deps === 0) {
|
|
parentSuspense.resolve();
|
|
}
|
|
}
|
|
{
|
|
devtoolsComponentRemoved(instance);
|
|
}
|
|
};
|
|
const unmountChildren = (children, parentComponent, parentSuspense, doRemove = false, optimized = false, start = 0) => {
|
|
for (let i = start; i < children.length; i++) {
|
|
unmount(children[i], parentComponent, parentSuspense, doRemove, optimized);
|
|
}
|
|
};
|
|
const getNextHostNode = vnode => {
|
|
if (vnode.shapeFlag & 6 /* COMPONENT */) {
|
|
return getNextHostNode(vnode.component.subTree);
|
|
}
|
|
if ( vnode.shapeFlag & 128 /* SUSPENSE */) {
|
|
return vnode.suspense.next();
|
|
}
|
|
return hostNextSibling((vnode.anchor || vnode.el));
|
|
};
|
|
const render = (vnode, container) => {
|
|
if (vnode == null) {
|
|
if (container._vnode) {
|
|
unmount(container._vnode, null, null, true);
|
|
}
|
|
}
|
|
else {
|
|
patch(container._vnode || null, vnode, container);
|
|
}
|
|
flushPostFlushCbs();
|
|
container._vnode = vnode;
|
|
};
|
|
const internals = {
|
|
p: patch,
|
|
um: unmount,
|
|
m: move,
|
|
r: remove,
|
|
mt: mountComponent,
|
|
mc: mountChildren,
|
|
pc: patchChildren,
|
|
pbc: patchBlockChildren,
|
|
n: getNextHostNode,
|
|
o: options
|
|
};
|
|
let hydrate;
|
|
let hydrateNode;
|
|
if (createHydrationFns) {
|
|
[hydrate, hydrateNode] = createHydrationFns(internals);
|
|
}
|
|
return {
|
|
render,
|
|
hydrate,
|
|
createApp: createAppAPI(render, hydrate)
|
|
};
|
|
}
|
|
function invokeVNodeHook(hook, instance, vnode, prevVNode = null) {
|
|
callWithAsyncErrorHandling(hook, instance, 7 /* VNODE_HOOK */, [
|
|
vnode,
|
|
prevVNode
|
|
]);
|
|
}
|
|
/**
|
|
* #1156
|
|
* When a component is HMR-enabled, we need to make sure that all static nodes
|
|
* inside a block also inherit the DOM element from the previous tree so that
|
|
* HMR updates (which are full updates) can retrieve the element for patching.
|
|
*
|
|
* #2080
|
|
* Inside keyed `template` fragment static children, if a fragment is moved,
|
|
* the children will always moved so that need inherit el form previous nodes
|
|
* to ensure correct moved position.
|
|
*/
|
|
function traverseStaticChildren(n1, n2, shallow = false) {
|
|
const ch1 = n1.children;
|
|
const ch2 = n2.children;
|
|
if (isArray(ch1) && isArray(ch2)) {
|
|
for (let i = 0; i < ch1.length; i++) {
|
|
// this is only called in the optimized path so array children are
|
|
// guaranteed to be vnodes
|
|
const c1 = ch1[i];
|
|
let c2 = ch2[i];
|
|
if (c2.shapeFlag & 1 /* ELEMENT */ && !c2.dynamicChildren) {
|
|
if (c2.patchFlag <= 0 || c2.patchFlag === 32 /* HYDRATE_EVENTS */) {
|
|
c2 = ch2[i] = cloneIfMounted(ch2[i]);
|
|
c2.el = c1.el;
|
|
}
|
|
if (!shallow)
|
|
traverseStaticChildren(c1, c2);
|
|
}
|
|
// also inherit for comment nodes, but not placeholders (e.g. v-if which
|
|
// would have received .el during block patch)
|
|
if ( c2.type === Comment && !c2.el) {
|
|
c2.el = c1.el;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
// https://en.wikipedia.org/wiki/Longest_increasing_subsequence
|
|
function getSequence(arr) {
|
|
const p = arr.slice();
|
|
const result = [0];
|
|
let i, j, u, v, c;
|
|
const len = arr.length;
|
|
for (i = 0; i < len; i++) {
|
|
const arrI = arr[i];
|
|
if (arrI !== 0) {
|
|
j = result[result.length - 1];
|
|
if (arr[j] < arrI) {
|
|
p[i] = j;
|
|
result.push(i);
|
|
continue;
|
|
}
|
|
u = 0;
|
|
v = result.length - 1;
|
|
while (u < v) {
|
|
c = ((u + v) / 2) | 0;
|
|
if (arr[result[c]] < arrI) {
|
|
u = c + 1;
|
|
}
|
|
else {
|
|
v = c;
|
|
}
|
|
}
|
|
if (arrI < arr[result[u]]) {
|
|
if (u > 0) {
|
|
p[i] = result[u - 1];
|
|
}
|
|
result[u] = i;
|
|
}
|
|
}
|
|
}
|
|
u = result.length;
|
|
v = result[u - 1];
|
|
while (u-- > 0) {
|
|
result[u] = v;
|
|
v = p[v];
|
|
}
|
|
return result;
|
|
}
|
|
|
|
const isTeleport = (type) => type.__isTeleport;
|
|
const isTeleportDisabled = (props) => props && (props.disabled || props.disabled === '');
|
|
const resolveTarget = (props, select) => {
|
|
const targetSelector = props && props.to;
|
|
if (isString(targetSelector)) {
|
|
if (!select) {
|
|
|
|
warn(`Current renderer does not support string target for Teleports. ` +
|
|
`(missing querySelector renderer option)`);
|
|
return null;
|
|
}
|
|
else {
|
|
const target = select(targetSelector);
|
|
if (!target) {
|
|
|
|
warn(`Failed to locate Teleport target with selector "${targetSelector}". ` +
|
|
`Note the target element must exist before the component is mounted - ` +
|
|
`i.e. the target cannot be rendered by the component itself, and ` +
|
|
`ideally should be outside of the entire Vue component tree.`);
|
|
}
|
|
return target;
|
|
}
|
|
}
|
|
else {
|
|
if ( !targetSelector && !isTeleportDisabled(props)) {
|
|
warn(`Invalid Teleport target: ${targetSelector}`);
|
|
}
|
|
return targetSelector;
|
|
}
|
|
};
|
|
const TeleportImpl = {
|
|
__isTeleport: true,
|
|
process(n1, n2, container, anchor, parentComponent, parentSuspense, isSVG, optimized, internals) {
|
|
const { mc: mountChildren, pc: patchChildren, pbc: patchBlockChildren, o: { insert, querySelector, createText, createComment } } = internals;
|
|
const disabled = isTeleportDisabled(n2.props);
|
|
const { shapeFlag, children } = n2;
|
|
if (n1 == null) {
|
|
// insert anchors in the main view
|
|
const placeholder = (n2.el = createComment('teleport start')
|
|
);
|
|
const mainAnchor = (n2.anchor = createComment('teleport end')
|
|
);
|
|
insert(placeholder, container, anchor);
|
|
insert(mainAnchor, container, anchor);
|
|
const target = (n2.target = resolveTarget(n2.props, querySelector));
|
|
const targetAnchor = (n2.targetAnchor = createText(''));
|
|
if (target) {
|
|
insert(targetAnchor, target);
|
|
}
|
|
else if ( !disabled) {
|
|
warn('Invalid Teleport target on mount:', target, `(${typeof target})`);
|
|
}
|
|
const mount = (container, anchor) => {
|
|
// Teleport *always* has Array children. This is enforced in both the
|
|
// compiler and vnode children normalization.
|
|
if (shapeFlag & 16 /* ARRAY_CHILDREN */) {
|
|
mountChildren(children, container, anchor, parentComponent, parentSuspense, isSVG, optimized);
|
|
}
|
|
};
|
|
if (disabled) {
|
|
mount(container, mainAnchor);
|
|
}
|
|
else if (target) {
|
|
mount(target, targetAnchor);
|
|
}
|
|
}
|
|
else {
|
|
// update content
|
|
n2.el = n1.el;
|
|
const mainAnchor = (n2.anchor = n1.anchor);
|
|
const target = (n2.target = n1.target);
|
|
const targetAnchor = (n2.targetAnchor = n1.targetAnchor);
|
|
const wasDisabled = isTeleportDisabled(n1.props);
|
|
const currentContainer = wasDisabled ? container : target;
|
|
const currentAnchor = wasDisabled ? mainAnchor : targetAnchor;
|
|
if (n2.dynamicChildren) {
|
|
// fast path when the teleport happens to be a block root
|
|
patchBlockChildren(n1.dynamicChildren, n2.dynamicChildren, currentContainer, parentComponent, parentSuspense, isSVG);
|
|
// even in block tree mode we need to make sure all root-level nodes
|
|
// in the teleport inherit previous DOM references so that they can
|
|
// be moved in future patches.
|
|
traverseStaticChildren(n1, n2, true);
|
|
}
|
|
else if (!optimized) {
|
|
patchChildren(n1, n2, currentContainer, currentAnchor, parentComponent, parentSuspense, isSVG);
|
|
}
|
|
if (disabled) {
|
|
if (!wasDisabled) {
|
|
// enabled -> disabled
|
|
// move into main container
|
|
moveTeleport(n2, container, mainAnchor, internals, 1 /* TOGGLE */);
|
|
}
|
|
}
|
|
else {
|
|
// target changed
|
|
if ((n2.props && n2.props.to) !== (n1.props && n1.props.to)) {
|
|
const nextTarget = (n2.target = resolveTarget(n2.props, querySelector));
|
|
if (nextTarget) {
|
|
moveTeleport(n2, nextTarget, null, internals, 0 /* TARGET_CHANGE */);
|
|
}
|
|
else {
|
|
warn('Invalid Teleport target on update:', target, `(${typeof target})`);
|
|
}
|
|
}
|
|
else if (wasDisabled) {
|
|
// disabled -> enabled
|
|
// move into teleport target
|
|
moveTeleport(n2, target, targetAnchor, internals, 1 /* TOGGLE */);
|
|
}
|
|
}
|
|
}
|
|
},
|
|
remove(vnode, { r: remove, o: { remove: hostRemove } }) {
|
|
const { shapeFlag, children, anchor } = vnode;
|
|
hostRemove(anchor);
|
|
if (shapeFlag & 16 /* ARRAY_CHILDREN */) {
|
|
for (let i = 0; i < children.length; i++) {
|
|
remove(children[i]);
|
|
}
|
|
}
|
|
},
|
|
move: moveTeleport,
|
|
hydrate: hydrateTeleport
|
|
};
|
|
function moveTeleport(vnode, container, parentAnchor, { o: { insert }, m: move }, moveType = 2 /* REORDER */) {
|
|
// move target anchor if this is a target change.
|
|
if (moveType === 0 /* TARGET_CHANGE */) {
|
|
insert(vnode.targetAnchor, container, parentAnchor);
|
|
}
|
|
const { el, anchor, shapeFlag, children, props } = vnode;
|
|
const isReorder = moveType === 2 /* REORDER */;
|
|
// move main view anchor if this is a re-order.
|
|
if (isReorder) {
|
|
insert(el, container, parentAnchor);
|
|
}
|
|
// if this is a re-order and teleport is enabled (content is in target)
|
|
// do not move children. So the opposite is: only move children if this
|
|
// is not a reorder, or the teleport is disabled
|
|
if (!isReorder || isTeleportDisabled(props)) {
|
|
// Teleport has either Array children or no children.
|
|
if (shapeFlag & 16 /* ARRAY_CHILDREN */) {
|
|
for (let i = 0; i < children.length; i++) {
|
|
move(children[i], container, parentAnchor, 2 /* REORDER */);
|
|
}
|
|
}
|
|
}
|
|
// move main view anchor if this is a re-order.
|
|
if (isReorder) {
|
|
insert(anchor, container, parentAnchor);
|
|
}
|
|
}
|
|
function hydrateTeleport(node, vnode, parentComponent, parentSuspense, optimized, { o: { nextSibling, parentNode, querySelector } }, hydrateChildren) {
|
|
const target = (vnode.target = resolveTarget(vnode.props, querySelector));
|
|
if (target) {
|
|
// if multiple teleports rendered to the same target element, we need to
|
|
// pick up from where the last teleport finished instead of the first node
|
|
const targetNode = target._lpa || target.firstChild;
|
|
if (vnode.shapeFlag & 16 /* ARRAY_CHILDREN */) {
|
|
if (isTeleportDisabled(vnode.props)) {
|
|
vnode.anchor = hydrateChildren(nextSibling(node), vnode, parentNode(node), parentComponent, parentSuspense, optimized);
|
|
vnode.targetAnchor = targetNode;
|
|
}
|
|
else {
|
|
vnode.anchor = nextSibling(node);
|
|
vnode.targetAnchor = hydrateChildren(targetNode, vnode, target, parentComponent, parentSuspense, optimized);
|
|
}
|
|
target._lpa =
|
|
vnode.targetAnchor && nextSibling(vnode.targetAnchor);
|
|
}
|
|
}
|
|
return vnode.anchor && nextSibling(vnode.anchor);
|
|
}
|
|
// Force-casted public typing for h and TSX props inference
|
|
const Teleport = TeleportImpl;
|
|
|
|
const COMPONENTS = 'components';
|
|
const DIRECTIVES = 'directives';
|
|
/**
|
|
* @private
|
|
*/
|
|
function resolveComponent(name) {
|
|
return resolveAsset(COMPONENTS, name) || name;
|
|
}
|
|
const NULL_DYNAMIC_COMPONENT = Symbol();
|
|
/**
|
|
* @private
|
|
*/
|
|
function resolveDynamicComponent(component) {
|
|
if (isString(component)) {
|
|
return resolveAsset(COMPONENTS, component, false) || component;
|
|
}
|
|
else {
|
|
// invalid types will fallthrough to createVNode and raise warning
|
|
return (component || NULL_DYNAMIC_COMPONENT);
|
|
}
|
|
}
|
|
/**
|
|
* @private
|
|
*/
|
|
function resolveDirective(name) {
|
|
return resolveAsset(DIRECTIVES, name);
|
|
}
|
|
// implementation
|
|
function resolveAsset(type, name, warnMissing = true) {
|
|
const instance = currentRenderingInstance || currentInstance;
|
|
if (instance) {
|
|
const Component = instance.type;
|
|
// self name has highest priority
|
|
if (type === COMPONENTS) {
|
|
const selfName = Component.displayName || Component.name;
|
|
if (selfName &&
|
|
(selfName === name ||
|
|
selfName === camelize(name) ||
|
|
selfName === capitalize(camelize(name)))) {
|
|
return Component;
|
|
}
|
|
}
|
|
const res =
|
|
// local registration
|
|
// check instance[type] first for components with mixin or extends.
|
|
resolve(instance[type] || Component[type], name) ||
|
|
// global registration
|
|
resolve(instance.appContext[type], name);
|
|
if ( warnMissing && !res) {
|
|
warn(`Failed to resolve ${type.slice(0, -1)}: ${name}`);
|
|
}
|
|
return res;
|
|
}
|
|
else {
|
|
warn(`resolve${capitalize(type.slice(0, -1))} ` +
|
|
`can only be used in render() or setup().`);
|
|
}
|
|
}
|
|
function resolve(registry, name) {
|
|
return (registry &&
|
|
(registry[name] ||
|
|
registry[camelize(name)] ||
|
|
registry[capitalize(camelize(name))]));
|
|
}
|
|
|
|
const Fragment = Symbol( 'Fragment' );
|
|
const Text = Symbol( 'Text' );
|
|
const Comment = Symbol( 'Comment' );
|
|
const Static = Symbol( 'Static' );
|
|
// Since v-if and v-for are the two possible ways node structure can dynamically
|
|
// change, once we consider v-if branches and each v-for fragment a block, we
|
|
// can divide a template into nested blocks, and within each block the node
|
|
// structure would be stable. This allows us to skip most children diffing
|
|
// and only worry about the dynamic nodes (indicated by patch flags).
|
|
const blockStack = [];
|
|
let currentBlock = null;
|
|
/**
|
|
* Open a block.
|
|
* This must be called before `createBlock`. It cannot be part of `createBlock`
|
|
* because the children of the block are evaluated before `createBlock` itself
|
|
* is called. The generated code typically looks like this:
|
|
*
|
|
* ```js
|
|
* function render() {
|
|
* return (openBlock(),createBlock('div', null, [...]))
|
|
* }
|
|
* ```
|
|
* disableTracking is true when creating a v-for fragment block, since a v-for
|
|
* fragment always diffs its children.
|
|
*
|
|
* @private
|
|
*/
|
|
function openBlock(disableTracking = false) {
|
|
blockStack.push((currentBlock = disableTracking ? null : []));
|
|
}
|
|
function closeBlock() {
|
|
blockStack.pop();
|
|
currentBlock = blockStack[blockStack.length - 1] || null;
|
|
}
|
|
// Whether we should be tracking dynamic child nodes inside a block.
|
|
// Only tracks when this value is > 0
|
|
// We are not using a simple boolean because this value may need to be
|
|
// incremented/decremented by nested usage of v-once (see below)
|
|
let shouldTrack$1 = 1;
|
|
/**
|
|
* Block tracking sometimes needs to be disabled, for example during the
|
|
* creation of a tree that needs to be cached by v-once. The compiler generates
|
|
* code like this:
|
|
*
|
|
* ``` js
|
|
* _cache[1] || (
|
|
* setBlockTracking(-1),
|
|
* _cache[1] = createVNode(...),
|
|
* setBlockTracking(1),
|
|
* _cache[1]
|
|
* )
|
|
* ```
|
|
*
|
|
* @private
|
|
*/
|
|
function setBlockTracking(value) {
|
|
shouldTrack$1 += value;
|
|
}
|
|
/**
|
|
* Create a block root vnode. Takes the same exact arguments as `createVNode`.
|
|
* A block root keeps track of dynamic nodes within the block in the
|
|
* `dynamicChildren` array.
|
|
*
|
|
* @private
|
|
*/
|
|
function createBlock(type, props, children, patchFlag, dynamicProps) {
|
|
const vnode = createVNode(type, props, children, patchFlag, dynamicProps, true /* isBlock: prevent a block from tracking itself */);
|
|
// save current block children on the block vnode
|
|
vnode.dynamicChildren = currentBlock || EMPTY_ARR;
|
|
// close block
|
|
closeBlock();
|
|
// a block is always going to be patched, so track it as a child of its
|
|
// parent block
|
|
if (shouldTrack$1 > 0 && currentBlock) {
|
|
currentBlock.push(vnode);
|
|
}
|
|
return vnode;
|
|
}
|
|
function isVNode(value) {
|
|
return value ? value.__v_isVNode === true : false;
|
|
}
|
|
function isSameVNodeType(n1, n2) {
|
|
if (
|
|
n2.shapeFlag & 6 /* COMPONENT */ &&
|
|
hmrDirtyComponents.has(n2.type)) {
|
|
// HMR only: if the component has been hot-updated, force a reload.
|
|
return false;
|
|
}
|
|
return n1.type === n2.type && n1.key === n2.key;
|
|
}
|
|
let vnodeArgsTransformer;
|
|
/**
|
|
* Internal API for registering an arguments transform for createVNode
|
|
* used for creating stubs in the test-utils
|
|
* It is *internal* but needs to be exposed for test-utils to pick up proper
|
|
* typings
|
|
*/
|
|
function transformVNodeArgs(transformer) {
|
|
vnodeArgsTransformer = transformer;
|
|
}
|
|
const createVNodeWithArgsTransform = (...args) => {
|
|
return _createVNode(...(vnodeArgsTransformer
|
|
? vnodeArgsTransformer(args, currentRenderingInstance)
|
|
: args));
|
|
};
|
|
const InternalObjectKey = `__vInternal`;
|
|
const normalizeKey = ({ key }) => key != null ? key : null;
|
|
const normalizeRef = ({ ref }) => {
|
|
return (ref != null
|
|
? isArray(ref)
|
|
? ref
|
|
: { i: currentRenderingInstance, r: ref }
|
|
: null);
|
|
};
|
|
const createVNode = ( createVNodeWithArgsTransform
|
|
);
|
|
function _createVNode(type, props = null, children = null, patchFlag = 0, dynamicProps = null, isBlockNode = false) {
|
|
if (!type || type === NULL_DYNAMIC_COMPONENT) {
|
|
if ( !type) {
|
|
warn(`Invalid vnode type when creating vnode: ${type}.`);
|
|
}
|
|
type = Comment;
|
|
}
|
|
if (isVNode(type)) {
|
|
// createVNode receiving an existing vnode. This happens in cases like
|
|
// <component :is="vnode"/>
|
|
// #2078 make sure to merge refs during the clone instead of overwriting it
|
|
const cloned = cloneVNode(type, props, true /* mergeRef: true */);
|
|
if (children) {
|
|
normalizeChildren(cloned, children);
|
|
}
|
|
return cloned;
|
|
}
|
|
// class component normalization.
|
|
if (isClassComponent(type)) {
|
|
type = type.__vccOpts;
|
|
}
|
|
// class & style normalization.
|
|
if (props) {
|
|
// for reactive or proxy objects, we need to clone it to enable mutation.
|
|
if (isProxy(props) || InternalObjectKey in props) {
|
|
props = extend({}, props);
|
|
}
|
|
let { class: klass, style } = props;
|
|
if (klass && !isString(klass)) {
|
|
props.class = normalizeClass(klass);
|
|
}
|
|
if (isObject(style)) {
|
|
// reactive state objects need to be cloned since they are likely to be
|
|
// mutated
|
|
if (isProxy(style) && !isArray(style)) {
|
|
style = extend({}, style);
|
|
}
|
|
props.style = normalizeStyle(style);
|
|
}
|
|
}
|
|
// encode the vnode type information into a bitmap
|
|
const shapeFlag = isString(type)
|
|
? 1 /* ELEMENT */
|
|
: isSuspense(type)
|
|
? 128 /* SUSPENSE */
|
|
: isTeleport(type)
|
|
? 64 /* TELEPORT */
|
|
: isObject(type)
|
|
? 4 /* STATEFUL_COMPONENT */
|
|
: isFunction(type)
|
|
? 2 /* FUNCTIONAL_COMPONENT */
|
|
: 0;
|
|
if ( shapeFlag & 4 /* STATEFUL_COMPONENT */ && isProxy(type)) {
|
|
type = toRaw(type);
|
|
warn(`Vue received a Component which was made a reactive object. This can ` +
|
|
`lead to unnecessary performance overhead, and should be avoided by ` +
|
|
`marking the component with \`markRaw\` or using \`shallowRef\` ` +
|
|
`instead of \`ref\`.`, `\nComponent that was made reactive: `, type);
|
|
}
|
|
const vnode = {
|
|
__v_isVNode: true,
|
|
["__v_skip" /* SKIP */]: true,
|
|
type,
|
|
props,
|
|
key: props && normalizeKey(props),
|
|
ref: props && normalizeRef(props),
|
|
scopeId: currentScopeId,
|
|
children: null,
|
|
component: null,
|
|
suspense: null,
|
|
ssContent: null,
|
|
ssFallback: null,
|
|
dirs: null,
|
|
transition: null,
|
|
el: null,
|
|
anchor: null,
|
|
target: null,
|
|
targetAnchor: null,
|
|
staticCount: 0,
|
|
shapeFlag,
|
|
patchFlag,
|
|
dynamicProps,
|
|
dynamicChildren: null,
|
|
appContext: null
|
|
};
|
|
// validate key
|
|
if ( vnode.key !== vnode.key) {
|
|
warn(`VNode created with invalid key (NaN). VNode type:`, vnode.type);
|
|
}
|
|
normalizeChildren(vnode, children);
|
|
// normalize suspense children
|
|
if ( shapeFlag & 128 /* SUSPENSE */) {
|
|
const { content, fallback } = normalizeSuspenseChildren(vnode);
|
|
vnode.ssContent = content;
|
|
vnode.ssFallback = fallback;
|
|
}
|
|
if (shouldTrack$1 > 0 &&
|
|
// avoid a block node from tracking itself
|
|
!isBlockNode &&
|
|
// has current parent block
|
|
currentBlock &&
|
|
// presence of a patch flag indicates this node needs patching on updates.
|
|
// component nodes also should always be patched, because even if the
|
|
// component doesn't need to update, it needs to persist the instance on to
|
|
// the next vnode so that it can be properly unmounted later.
|
|
(patchFlag > 0 || shapeFlag & 6 /* COMPONENT */) &&
|
|
// the EVENTS flag is only for hydration and if it is the only flag, the
|
|
// vnode should not be considered dynamic due to handler caching.
|
|
patchFlag !== 32 /* HYDRATE_EVENTS */) {
|
|
currentBlock.push(vnode);
|
|
}
|
|
return vnode;
|
|
}
|
|
function cloneVNode(vnode, extraProps, mergeRef = false) {
|
|
// This is intentionally NOT using spread or extend to avoid the runtime
|
|
// key enumeration cost.
|
|
const { props, ref, patchFlag } = vnode;
|
|
const mergedProps = extraProps ? mergeProps(props || {}, extraProps) : props;
|
|
return {
|
|
__v_isVNode: true,
|
|
["__v_skip" /* SKIP */]: true,
|
|
type: vnode.type,
|
|
props: mergedProps,
|
|
key: mergedProps && normalizeKey(mergedProps),
|
|
ref: extraProps && extraProps.ref
|
|
? // #2078 in the case of <component :is="vnode" ref="extra"/>
|
|
// if the vnode itself already has a ref, cloneVNode will need to merge
|
|
// the refs so the single vnode can be set on multiple refs
|
|
mergeRef && ref
|
|
? isArray(ref)
|
|
? ref.concat(normalizeRef(extraProps))
|
|
: [ref, normalizeRef(extraProps)]
|
|
: normalizeRef(extraProps)
|
|
: ref,
|
|
scopeId: vnode.scopeId,
|
|
children: vnode.children,
|
|
target: vnode.target,
|
|
targetAnchor: vnode.targetAnchor,
|
|
staticCount: vnode.staticCount,
|
|
shapeFlag: vnode.shapeFlag,
|
|
// if the vnode is cloned with extra props, we can no longer assume its
|
|
// existing patch flag to be reliable and need to add the FULL_PROPS flag.
|
|
// note: perserve flag for fragments since they use the flag for children
|
|
// fast paths only.
|
|
patchFlag: extraProps && vnode.type !== Fragment
|
|
? patchFlag === -1 // hoisted node
|
|
? 16 /* FULL_PROPS */
|
|
: patchFlag | 16 /* FULL_PROPS */
|
|
: patchFlag,
|
|
dynamicProps: vnode.dynamicProps,
|
|
dynamicChildren: vnode.dynamicChildren,
|
|
appContext: vnode.appContext,
|
|
dirs: vnode.dirs,
|
|
transition: vnode.transition,
|
|
// These should technically only be non-null on mounted VNodes. However,
|
|
// they *should* be copied for kept-alive vnodes. So we just always copy
|
|
// them since them being non-null during a mount doesn't affect the logic as
|
|
// they will simply be overwritten.
|
|
component: vnode.component,
|
|
suspense: vnode.suspense,
|
|
ssContent: vnode.ssContent && cloneVNode(vnode.ssContent),
|
|
ssFallback: vnode.ssFallback && cloneVNode(vnode.ssFallback),
|
|
el: vnode.el,
|
|
anchor: vnode.anchor
|
|
};
|
|
}
|
|
/**
|
|
* @private
|
|
*/
|
|
function createTextVNode(text = ' ', flag = 0) {
|
|
return createVNode(Text, null, text, flag);
|
|
}
|
|
/**
|
|
* @private
|
|
*/
|
|
function createStaticVNode(content, numberOfNodes) {
|
|
// A static vnode can contain multiple stringified elements, and the number
|
|
// of elements is necessary for hydration.
|
|
const vnode = createVNode(Static, null, content);
|
|
vnode.staticCount = numberOfNodes;
|
|
return vnode;
|
|
}
|
|
/**
|
|
* @private
|
|
*/
|
|
function createCommentVNode(text = '',
|
|
// when used as the v-else branch, the comment node must be created as a
|
|
// block to ensure correct updates.
|
|
asBlock = false) {
|
|
return asBlock
|
|
? (openBlock(), createBlock(Comment, null, text))
|
|
: createVNode(Comment, null, text);
|
|
}
|
|
function normalizeVNode(child) {
|
|
if (child == null || typeof child === 'boolean') {
|
|
// empty placeholder
|
|
return createVNode(Comment);
|
|
}
|
|
else if (isArray(child)) {
|
|
// fragment
|
|
return createVNode(Fragment, null, child);
|
|
}
|
|
else if (typeof child === 'object') {
|
|
// already vnode, this should be the most common since compiled templates
|
|
// always produce all-vnode children arrays
|
|
return child.el === null ? child : cloneVNode(child);
|
|
}
|
|
else {
|
|
// strings and numbers
|
|
return createVNode(Text, null, String(child));
|
|
}
|
|
}
|
|
// optimized normalization for template-compiled render fns
|
|
function cloneIfMounted(child) {
|
|
return child.el === null ? child : cloneVNode(child);
|
|
}
|
|
function normalizeChildren(vnode, children) {
|
|
let type = 0;
|
|
const { shapeFlag } = vnode;
|
|
if (children == null) {
|
|
children = null;
|
|
}
|
|
else if (isArray(children)) {
|
|
type = 16 /* ARRAY_CHILDREN */;
|
|
}
|
|
else if (typeof children === 'object') {
|
|
if (shapeFlag & 1 /* ELEMENT */ || shapeFlag & 64 /* TELEPORT */) {
|
|
// Normalize slot to plain children for plain element and Teleport
|
|
const slot = children.default;
|
|
if (slot) {
|
|
// _c marker is added by withCtx() indicating this is a compiled slot
|
|
slot._c && setCompiledSlotRendering(1);
|
|
normalizeChildren(vnode, slot());
|
|
slot._c && setCompiledSlotRendering(-1);
|
|
}
|
|
return;
|
|
}
|
|
else {
|
|
type = 32 /* SLOTS_CHILDREN */;
|
|
const slotFlag = children._;
|
|
if (!slotFlag && !(InternalObjectKey in children)) {
|
|
children._ctx = currentRenderingInstance;
|
|
}
|
|
else if (slotFlag === 3 /* FORWARDED */ && currentRenderingInstance) {
|
|
// a child component receives forwarded slots from the parent.
|
|
// its slot type is determined by its parent's slot type.
|
|
if (currentRenderingInstance.vnode.patchFlag & 1024 /* DYNAMIC_SLOTS */) {
|
|
children._ = 2 /* DYNAMIC */;
|
|
vnode.patchFlag |= 1024 /* DYNAMIC_SLOTS */;
|
|
}
|
|
else {
|
|
children._ = 1 /* STABLE */;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
else if (isFunction(children)) {
|
|
children = { default: children, _ctx: currentRenderingInstance };
|
|
type = 32 /* SLOTS_CHILDREN */;
|
|
}
|
|
else {
|
|
children = String(children);
|
|
// force teleport children to array so it can be moved around
|
|
if (shapeFlag & 64 /* TELEPORT */) {
|
|
type = 16 /* ARRAY_CHILDREN */;
|
|
children = [createTextVNode(children)];
|
|
}
|
|
else {
|
|
type = 8 /* TEXT_CHILDREN */;
|
|
}
|
|
}
|
|
vnode.children = children;
|
|
vnode.shapeFlag |= type;
|
|
}
|
|
function mergeProps(...args) {
|
|
const ret = extend({}, args[0]);
|
|
for (let i = 1; i < args.length; i++) {
|
|
const toMerge = args[i];
|
|
for (const key in toMerge) {
|
|
if (key === 'class') {
|
|
if (ret.class !== toMerge.class) {
|
|
ret.class = normalizeClass([ret.class, toMerge.class]);
|
|
}
|
|
}
|
|
else if (key === 'style') {
|
|
ret.style = normalizeStyle([ret.style, toMerge.style]);
|
|
}
|
|
else if (isOn(key)) {
|
|
const existing = ret[key];
|
|
const incoming = toMerge[key];
|
|
if (existing !== incoming) {
|
|
ret[key] = existing
|
|
? [].concat(existing, toMerge[key])
|
|
: incoming;
|
|
}
|
|
}
|
|
else if (key !== '') {
|
|
ret[key] = toMerge[key];
|
|
}
|
|
}
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
function provide(key, value) {
|
|
if (!currentInstance) {
|
|
{
|
|
warn(`provide() can only be used inside setup().`);
|
|
}
|
|
}
|
|
else {
|
|
let provides = currentInstance.provides;
|
|
// by default an instance inherits its parent's provides object
|
|
// but when it needs to provide values of its own, it creates its
|
|
// own provides object using parent provides object as prototype.
|
|
// this way in `inject` we can simply look up injections from direct
|
|
// parent and let the prototype chain do the work.
|
|
const parentProvides = currentInstance.parent && currentInstance.parent.provides;
|
|
if (parentProvides === provides) {
|
|
provides = currentInstance.provides = Object.create(parentProvides);
|
|
}
|
|
// TS doesn't allow symbol as index type
|
|
provides[key] = value;
|
|
}
|
|
}
|
|
function inject(key, defaultValue, treatDefaultAsFactory = false) {
|
|
// fallback to `currentRenderingInstance` so that this can be called in
|
|
// a functional component
|
|
const instance = currentInstance || currentRenderingInstance;
|
|
if (instance) {
|
|
// #2400
|
|
// to support `app.use` plugins,
|
|
// fallback to appContext's `provides` if the intance is at root
|
|
const provides = instance.parent == null
|
|
? instance.vnode.appContext && instance.vnode.appContext.provides
|
|
: instance.parent.provides;
|
|
if (provides && key in provides) {
|
|
// TS doesn't allow symbol as index type
|
|
return provides[key];
|
|
}
|
|
else if (arguments.length > 1) {
|
|
return treatDefaultAsFactory && isFunction(defaultValue)
|
|
? defaultValue()
|
|
: defaultValue;
|
|
}
|
|
else {
|
|
warn(`injection "${String(key)}" not found.`);
|
|
}
|
|
}
|
|
else {
|
|
warn(`inject() can only be used inside setup() or functional components.`);
|
|
}
|
|
}
|
|
|
|
function createDuplicateChecker() {
|
|
const cache = Object.create(null);
|
|
return (type, key) => {
|
|
if (cache[key]) {
|
|
warn(`${type} property "${key}" is already defined in ${cache[key]}.`);
|
|
}
|
|
else {
|
|
cache[key] = type;
|
|
}
|
|
};
|
|
}
|
|
let isInBeforeCreate = false;
|
|
function applyOptions(instance, options, deferredData = [], deferredWatch = [], deferredProvide = [], asMixin = false) {
|
|
const {
|
|
// composition
|
|
mixins, extends: extendsOptions,
|
|
// state
|
|
data: dataOptions, computed: computedOptions, methods, watch: watchOptions, provide: provideOptions, inject: injectOptions,
|
|
// assets
|
|
components, directives,
|
|
// lifecycle
|
|
beforeMount, mounted, beforeUpdate, updated, activated, deactivated, beforeDestroy, beforeUnmount, destroyed, unmounted, render, renderTracked, renderTriggered, errorCaptured } = options;
|
|
const publicThis = instance.proxy;
|
|
const ctx = instance.ctx;
|
|
const globalMixins = instance.appContext.mixins;
|
|
if (asMixin && render && instance.render === NOOP) {
|
|
instance.render = render;
|
|
}
|
|
// applyOptions is called non-as-mixin once per instance
|
|
if (!asMixin) {
|
|
isInBeforeCreate = true;
|
|
callSyncHook('beforeCreate', "bc" /* BEFORE_CREATE */, options, instance, globalMixins);
|
|
isInBeforeCreate = false;
|
|
// global mixins are applied first
|
|
applyMixins(instance, globalMixins, deferredData, deferredWatch, deferredProvide);
|
|
}
|
|
// extending a base component...
|
|
if (extendsOptions) {
|
|
applyOptions(instance, extendsOptions, deferredData, deferredWatch, deferredProvide, true);
|
|
}
|
|
// local mixins
|
|
if (mixins) {
|
|
applyMixins(instance, mixins, deferredData, deferredWatch, deferredProvide);
|
|
}
|
|
const checkDuplicateProperties = createDuplicateChecker() ;
|
|
{
|
|
const [propsOptions] = instance.propsOptions;
|
|
if (propsOptions) {
|
|
for (const key in propsOptions) {
|
|
checkDuplicateProperties("Props" /* PROPS */, key);
|
|
}
|
|
}
|
|
}
|
|
// options initialization order (to be consistent with Vue 2):
|
|
// - props (already done outside of this function)
|
|
// - inject
|
|
// - methods
|
|
// - data (deferred since it relies on `this` access)
|
|
// - computed
|
|
// - watch (deferred since it relies on `this` access)
|
|
if (injectOptions) {
|
|
if (isArray(injectOptions)) {
|
|
for (let i = 0; i < injectOptions.length; i++) {
|
|
const key = injectOptions[i];
|
|
ctx[key] = inject(key);
|
|
{
|
|
checkDuplicateProperties("Inject" /* INJECT */, key);
|
|
}
|
|
}
|
|
}
|
|
else {
|
|
for (const key in injectOptions) {
|
|
const opt = injectOptions[key];
|
|
if (isObject(opt)) {
|
|
ctx[key] = inject(opt.from || key, opt.default, true /* treat default function as factory */);
|
|
}
|
|
else {
|
|
ctx[key] = inject(opt);
|
|
}
|
|
{
|
|
checkDuplicateProperties("Inject" /* INJECT */, key);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
if (methods) {
|
|
for (const key in methods) {
|
|
const methodHandler = methods[key];
|
|
if (isFunction(methodHandler)) {
|
|
ctx[key] = methodHandler.bind(publicThis);
|
|
{
|
|
checkDuplicateProperties("Methods" /* METHODS */, key);
|
|
}
|
|
}
|
|
else {
|
|
warn(`Method "${key}" has type "${typeof methodHandler}" in the component definition. ` +
|
|
`Did you reference the function correctly?`);
|
|
}
|
|
}
|
|
}
|
|
if (!asMixin) {
|
|
if (deferredData.length) {
|
|
deferredData.forEach(dataFn => resolveData(instance, dataFn, publicThis));
|
|
}
|
|
if (dataOptions) {
|
|
resolveData(instance, dataOptions, publicThis);
|
|
}
|
|
{
|
|
const rawData = toRaw(instance.data);
|
|
for (const key in rawData) {
|
|
checkDuplicateProperties("Data" /* DATA */, key);
|
|
// expose data on ctx during dev
|
|
if (key[0] !== '$' && key[0] !== '_') {
|
|
Object.defineProperty(ctx, key, {
|
|
configurable: true,
|
|
enumerable: true,
|
|
get: () => rawData[key],
|
|
set: NOOP
|
|
});
|
|
}
|
|
}
|
|
}
|
|
}
|
|
else if (dataOptions) {
|
|
deferredData.push(dataOptions);
|
|
}
|
|
if (computedOptions) {
|
|
for (const key in computedOptions) {
|
|
const opt = computedOptions[key];
|
|
const get = isFunction(opt)
|
|
? opt.bind(publicThis, publicThis)
|
|
: isFunction(opt.get)
|
|
? opt.get.bind(publicThis, publicThis)
|
|
: NOOP;
|
|
if ( get === NOOP) {
|
|
warn(`Computed property "${key}" has no getter.`);
|
|
}
|
|
const set = !isFunction(opt) && isFunction(opt.set)
|
|
? opt.set.bind(publicThis)
|
|
: () => {
|
|
warn(`Write operation failed: computed property "${key}" is readonly.`);
|
|
}
|
|
;
|
|
const c = computed$1({
|
|
get,
|
|
set
|
|
});
|
|
Object.defineProperty(ctx, key, {
|
|
enumerable: true,
|
|
configurable: true,
|
|
get: () => c.value,
|
|
set: v => (c.value = v)
|
|
});
|
|
{
|
|
checkDuplicateProperties("Computed" /* COMPUTED */, key);
|
|
}
|
|
}
|
|
}
|
|
if (watchOptions) {
|
|
deferredWatch.push(watchOptions);
|
|
}
|
|
if (!asMixin && deferredWatch.length) {
|
|
deferredWatch.forEach(watchOptions => {
|
|
for (const key in watchOptions) {
|
|
createWatcher(watchOptions[key], ctx, publicThis, key);
|
|
}
|
|
});
|
|
}
|
|
if (provideOptions) {
|
|
deferredProvide.push(provideOptions);
|
|
}
|
|
if (!asMixin && deferredProvide.length) {
|
|
deferredProvide.forEach(provideOptions => {
|
|
const provides = isFunction(provideOptions)
|
|
? provideOptions.call(publicThis)
|
|
: provideOptions;
|
|
for (const key in provides) {
|
|
provide(key, provides[key]);
|
|
}
|
|
});
|
|
}
|
|
// asset options.
|
|
// To reduce memory usage, only components with mixins or extends will have
|
|
// resolved asset registry attached to instance.
|
|
if (asMixin) {
|
|
if (components) {
|
|
extend(instance.components ||
|
|
(instance.components = extend({}, instance.type.components)), components);
|
|
}
|
|
if (directives) {
|
|
extend(instance.directives ||
|
|
(instance.directives = extend({}, instance.type.directives)), directives);
|
|
}
|
|
}
|
|
// lifecycle options
|
|
if (!asMixin) {
|
|
callSyncHook('created', "c" /* CREATED */, options, instance, globalMixins);
|
|
}
|
|
if (beforeMount) {
|
|
onBeforeMount(beforeMount.bind(publicThis));
|
|
}
|
|
if (mounted) {
|
|
onMounted(mounted.bind(publicThis));
|
|
}
|
|
if (beforeUpdate) {
|
|
onBeforeUpdate(beforeUpdate.bind(publicThis));
|
|
}
|
|
if (updated) {
|
|
onUpdated(updated.bind(publicThis));
|
|
}
|
|
if (activated) {
|
|
onActivated(activated.bind(publicThis));
|
|
}
|
|
if (deactivated) {
|
|
onDeactivated(deactivated.bind(publicThis));
|
|
}
|
|
if (errorCaptured) {
|
|
onErrorCaptured(errorCaptured.bind(publicThis));
|
|
}
|
|
if (renderTracked) {
|
|
onRenderTracked(renderTracked.bind(publicThis));
|
|
}
|
|
if (renderTriggered) {
|
|
onRenderTriggered(renderTriggered.bind(publicThis));
|
|
}
|
|
if ( beforeDestroy) {
|
|
warn(`\`beforeDestroy\` has been renamed to \`beforeUnmount\`.`);
|
|
}
|
|
if (beforeUnmount) {
|
|
onBeforeUnmount(beforeUnmount.bind(publicThis));
|
|
}
|
|
if ( destroyed) {
|
|
warn(`\`destroyed\` has been renamed to \`unmounted\`.`);
|
|
}
|
|
if (unmounted) {
|
|
onUnmounted(unmounted.bind(publicThis));
|
|
}
|
|
}
|
|
function callSyncHook(name, type, options, instance, globalMixins) {
|
|
callHookFromMixins(name, type, globalMixins, instance);
|
|
const { extends: base, mixins } = options;
|
|
if (base) {
|
|
callHookFromExtends(name, type, base, instance);
|
|
}
|
|
if (mixins) {
|
|
callHookFromMixins(name, type, mixins, instance);
|
|
}
|
|
const selfHook = options[name];
|
|
if (selfHook) {
|
|
callWithAsyncErrorHandling(selfHook.bind(instance.proxy), instance, type);
|
|
}
|
|
}
|
|
function callHookFromExtends(name, type, base, instance) {
|
|
if (base.extends) {
|
|
callHookFromExtends(name, type, base.extends, instance);
|
|
}
|
|
const baseHook = base[name];
|
|
if (baseHook) {
|
|
callWithAsyncErrorHandling(baseHook.bind(instance.proxy), instance, type);
|
|
}
|
|
}
|
|
function callHookFromMixins(name, type, mixins, instance) {
|
|
for (let i = 0; i < mixins.length; i++) {
|
|
const chainedMixins = mixins[i].mixins;
|
|
if (chainedMixins) {
|
|
callHookFromMixins(name, type, chainedMixins, instance);
|
|
}
|
|
const fn = mixins[i][name];
|
|
if (fn) {
|
|
callWithAsyncErrorHandling(fn.bind(instance.proxy), instance, type);
|
|
}
|
|
}
|
|
}
|
|
function applyMixins(instance, mixins, deferredData, deferredWatch, deferredProvide) {
|
|
for (let i = 0; i < mixins.length; i++) {
|
|
applyOptions(instance, mixins[i], deferredData, deferredWatch, deferredProvide, true);
|
|
}
|
|
}
|
|
function resolveData(instance, dataFn, publicThis) {
|
|
if ( !isFunction(dataFn)) {
|
|
warn(`The data option must be a function. ` +
|
|
`Plain object usage is no longer supported.`);
|
|
}
|
|
const data = dataFn.call(publicThis, publicThis);
|
|
if ( isPromise(data)) {
|
|
warn(`data() returned a Promise - note data() cannot be async; If you ` +
|
|
`intend to perform data fetching before component renders, use ` +
|
|
`async setup() + <Suspense>.`);
|
|
}
|
|
if (!isObject(data)) {
|
|
warn(`data() should return an object.`);
|
|
}
|
|
else if (instance.data === EMPTY_OBJ) {
|
|
instance.data = reactive(data);
|
|
}
|
|
else {
|
|
// existing data: this is a mixin or extends.
|
|
extend(instance.data, data);
|
|
}
|
|
}
|
|
function createWatcher(raw, ctx, publicThis, key) {
|
|
const getter = key.includes('.')
|
|
? createPathGetter(publicThis, key)
|
|
: () => publicThis[key];
|
|
if (isString(raw)) {
|
|
const handler = ctx[raw];
|
|
if (isFunction(handler)) {
|
|
watch(getter, handler);
|
|
}
|
|
else {
|
|
warn(`Invalid watch handler specified by key "${raw}"`, handler);
|
|
}
|
|
}
|
|
else if (isFunction(raw)) {
|
|
watch(getter, raw.bind(publicThis));
|
|
}
|
|
else if (isObject(raw)) {
|
|
if (isArray(raw)) {
|
|
raw.forEach(r => createWatcher(r, ctx, publicThis, key));
|
|
}
|
|
else {
|
|
const handler = isFunction(raw.handler)
|
|
? raw.handler.bind(publicThis)
|
|
: ctx[raw.handler];
|
|
if (isFunction(handler)) {
|
|
watch(getter, handler, raw);
|
|
}
|
|
else {
|
|
warn(`Invalid watch handler specified by key "${raw.handler}"`, handler);
|
|
}
|
|
}
|
|
}
|
|
else {
|
|
warn(`Invalid watch option: "${key}"`, raw);
|
|
}
|
|
}
|
|
function createPathGetter(ctx, path) {
|
|
const segments = path.split('.');
|
|
return () => {
|
|
let cur = ctx;
|
|
for (let i = 0; i < segments.length && cur; i++) {
|
|
cur = cur[segments[i]];
|
|
}
|
|
return cur;
|
|
};
|
|
}
|
|
function resolveMergedOptions(instance) {
|
|
const raw = instance.type;
|
|
const { __merged, mixins, extends: extendsOptions } = raw;
|
|
if (__merged)
|
|
return __merged;
|
|
const globalMixins = instance.appContext.mixins;
|
|
if (!globalMixins.length && !mixins && !extendsOptions)
|
|
return raw;
|
|
const options = {};
|
|
globalMixins.forEach(m => mergeOptions(options, m, instance));
|
|
mergeOptions(options, raw, instance);
|
|
return (raw.__merged = options);
|
|
}
|
|
function mergeOptions(to, from, instance) {
|
|
const strats = instance.appContext.config.optionMergeStrategies;
|
|
const { mixins, extends: extendsOptions } = from;
|
|
extendsOptions && mergeOptions(to, extendsOptions, instance);
|
|
mixins &&
|
|
mixins.forEach((m) => mergeOptions(to, m, instance));
|
|
for (const key in from) {
|
|
if (strats && hasOwn(strats, key)) {
|
|
to[key] = strats[key](to[key], from[key], instance.proxy, key);
|
|
}
|
|
else {
|
|
to[key] = from[key];
|
|
}
|
|
}
|
|
}
|
|
|
|
const publicPropertiesMap = extend(Object.create(null), {
|
|
$: i => i,
|
|
$el: i => i.vnode.el,
|
|
$data: i => i.data,
|
|
$props: i => ( shallowReadonly(i.props) ),
|
|
$attrs: i => ( shallowReadonly(i.attrs) ),
|
|
$slots: i => ( shallowReadonly(i.slots) ),
|
|
$refs: i => ( shallowReadonly(i.refs) ),
|
|
$parent: i => i.parent && i.parent.proxy,
|
|
$root: i => i.root && i.root.proxy,
|
|
$emit: i => i.emit,
|
|
$options: i => ( resolveMergedOptions(i) ),
|
|
$forceUpdate: i => () => queueJob(i.update),
|
|
$nextTick: i => nextTick.bind(i.proxy),
|
|
$watch: i => ( instanceWatch.bind(i) )
|
|
});
|
|
const PublicInstanceProxyHandlers = {
|
|
get({ _: instance }, key) {
|
|
const { ctx, setupState, data, props, accessCache, type, appContext } = instance;
|
|
// let @vue/reactivity know it should never observe Vue public instances.
|
|
if (key === "__v_skip" /* SKIP */) {
|
|
return true;
|
|
}
|
|
// for internal formatters to know that this is a Vue instance
|
|
if ( key === '__isVue') {
|
|
return true;
|
|
}
|
|
// data / props / ctx
|
|
// This getter gets called for every property access on the render context
|
|
// during render and is a major hotspot. The most expensive part of this
|
|
// is the multiple hasOwn() calls. It's much faster to do a simple property
|
|
// access on a plain object, so we use an accessCache object (with null
|
|
// prototype) to memoize what access type a key corresponds to.
|
|
let normalizedProps;
|
|
if (key[0] !== '$') {
|
|
const n = accessCache[key];
|
|
if (n !== undefined) {
|
|
switch (n) {
|
|
case 0 /* SETUP */:
|
|
return setupState[key];
|
|
case 1 /* DATA */:
|
|
return data[key];
|
|
case 3 /* CONTEXT */:
|
|
return ctx[key];
|
|
case 2 /* PROPS */:
|
|
return props[key];
|
|
// default: just fallthrough
|
|
}
|
|
}
|
|
else if (setupState !== EMPTY_OBJ && hasOwn(setupState, key)) {
|
|
accessCache[key] = 0 /* SETUP */;
|
|
return setupState[key];
|
|
}
|
|
else if (data !== EMPTY_OBJ && hasOwn(data, key)) {
|
|
accessCache[key] = 1 /* DATA */;
|
|
return data[key];
|
|
}
|
|
else if (
|
|
// only cache other properties when instance has declared (thus stable)
|
|
// props
|
|
(normalizedProps = instance.propsOptions[0]) &&
|
|
hasOwn(normalizedProps, key)) {
|
|
accessCache[key] = 2 /* PROPS */;
|
|
return props[key];
|
|
}
|
|
else if (ctx !== EMPTY_OBJ && hasOwn(ctx, key)) {
|
|
accessCache[key] = 3 /* CONTEXT */;
|
|
return ctx[key];
|
|
}
|
|
else if ( !isInBeforeCreate) {
|
|
accessCache[key] = 4 /* OTHER */;
|
|
}
|
|
}
|
|
const publicGetter = publicPropertiesMap[key];
|
|
let cssModule, globalProperties;
|
|
// public $xxx properties
|
|
if (publicGetter) {
|
|
if (key === '$attrs') {
|
|
track(instance, "get" /* GET */, key);
|
|
markAttrsAccessed();
|
|
}
|
|
return publicGetter(instance);
|
|
}
|
|
else if (
|
|
// css module (injected by vue-loader)
|
|
(cssModule = type.__cssModules) &&
|
|
(cssModule = cssModule[key])) {
|
|
return cssModule;
|
|
}
|
|
else if (ctx !== EMPTY_OBJ && hasOwn(ctx, key)) {
|
|
// user may set custom properties to `this` that start with `$`
|
|
accessCache[key] = 3 /* CONTEXT */;
|
|
return ctx[key];
|
|
}
|
|
else if (
|
|
// global properties
|
|
((globalProperties = appContext.config.globalProperties),
|
|
hasOwn(globalProperties, key))) {
|
|
return globalProperties[key];
|
|
}
|
|
else if (
|
|
currentRenderingInstance &&
|
|
(!isString(key) ||
|
|
// #1091 avoid internal isRef/isVNode checks on component instance leading
|
|
// to infinite warning loop
|
|
key.indexOf('__v') !== 0)) {
|
|
if (data !== EMPTY_OBJ &&
|
|
(key[0] === '$' || key[0] === '_') &&
|
|
hasOwn(data, key)) {
|
|
warn(`Property ${JSON.stringify(key)} must be accessed via $data because it starts with a reserved ` +
|
|
`character ("$" or "_") and is not proxied on the render context.`);
|
|
}
|
|
else {
|
|
warn(`Property ${JSON.stringify(key)} was accessed during render ` +
|
|
`but is not defined on instance.`);
|
|
}
|
|
}
|
|
},
|
|
set({ _: instance }, key, value) {
|
|
const { data, setupState, ctx } = instance;
|
|
if (setupState !== EMPTY_OBJ && hasOwn(setupState, key)) {
|
|
setupState[key] = value;
|
|
}
|
|
else if (data !== EMPTY_OBJ && hasOwn(data, key)) {
|
|
data[key] = value;
|
|
}
|
|
else if (key in instance.props) {
|
|
|
|
warn(`Attempting to mutate prop "${key}". Props are readonly.`, instance);
|
|
return false;
|
|
}
|
|
if (key[0] === '$' && key.slice(1) in instance) {
|
|
|
|
warn(`Attempting to mutate public property "${key}". ` +
|
|
`Properties starting with $ are reserved and readonly.`, instance);
|
|
return false;
|
|
}
|
|
else {
|
|
if ( key in instance.appContext.config.globalProperties) {
|
|
Object.defineProperty(ctx, key, {
|
|
enumerable: true,
|
|
configurable: true,
|
|
value
|
|
});
|
|
}
|
|
else {
|
|
ctx[key] = value;
|
|
}
|
|
}
|
|
return true;
|
|
},
|
|
has({ _: { data, setupState, accessCache, ctx, appContext, propsOptions } }, key) {
|
|
let normalizedProps;
|
|
return (accessCache[key] !== undefined ||
|
|
(data !== EMPTY_OBJ && hasOwn(data, key)) ||
|
|
(setupState !== EMPTY_OBJ && hasOwn(setupState, key)) ||
|
|
((normalizedProps = propsOptions[0]) && hasOwn(normalizedProps, key)) ||
|
|
hasOwn(ctx, key) ||
|
|
hasOwn(publicPropertiesMap, key) ||
|
|
hasOwn(appContext.config.globalProperties, key));
|
|
}
|
|
};
|
|
{
|
|
PublicInstanceProxyHandlers.ownKeys = (target) => {
|
|
warn(`Avoid app logic that relies on enumerating keys on a component instance. ` +
|
|
`The keys will be empty in production mode to avoid performance overhead.`);
|
|
return Reflect.ownKeys(target);
|
|
};
|
|
}
|
|
const RuntimeCompiledPublicInstanceProxyHandlers = extend({}, PublicInstanceProxyHandlers, {
|
|
get(target, key) {
|
|
// fast path for unscopables when using `with` block
|
|
if (key === Symbol.unscopables) {
|
|
return;
|
|
}
|
|
return PublicInstanceProxyHandlers.get(target, key, target);
|
|
},
|
|
has(_, key) {
|
|
const has = key[0] !== '_' && !isGloballyWhitelisted(key);
|
|
if ( !has && PublicInstanceProxyHandlers.has(_, key)) {
|
|
warn(`Property ${JSON.stringify(key)} should not start with _ which is a reserved prefix for Vue internals.`);
|
|
}
|
|
return has;
|
|
}
|
|
});
|
|
// In dev mode, the proxy target exposes the same properties as seen on `this`
|
|
// for easier console inspection. In prod mode it will be an empty object so
|
|
// these properties definitions can be skipped.
|
|
function createRenderContext(instance) {
|
|
const target = {};
|
|
// expose internal instance for proxy handlers
|
|
Object.defineProperty(target, `_`, {
|
|
configurable: true,
|
|
enumerable: false,
|
|
get: () => instance
|
|
});
|
|
// expose public properties
|
|
Object.keys(publicPropertiesMap).forEach(key => {
|
|
Object.defineProperty(target, key, {
|
|
configurable: true,
|
|
enumerable: false,
|
|
get: () => publicPropertiesMap[key](instance),
|
|
// intercepted by the proxy so no need for implementation,
|
|
// but needed to prevent set errors
|
|
set: NOOP
|
|
});
|
|
});
|
|
// expose global properties
|
|
const { globalProperties } = instance.appContext.config;
|
|
Object.keys(globalProperties).forEach(key => {
|
|
Object.defineProperty(target, key, {
|
|
configurable: true,
|
|
enumerable: false,
|
|
get: () => globalProperties[key],
|
|
set: NOOP
|
|
});
|
|
});
|
|
return target;
|
|
}
|
|
// dev only
|
|
function exposePropsOnRenderContext(instance) {
|
|
const { ctx, propsOptions: [propsOptions] } = instance;
|
|
if (propsOptions) {
|
|
Object.keys(propsOptions).forEach(key => {
|
|
Object.defineProperty(ctx, key, {
|
|
enumerable: true,
|
|
configurable: true,
|
|
get: () => instance.props[key],
|
|
set: NOOP
|
|
});
|
|
});
|
|
}
|
|
}
|
|
// dev only
|
|
function exposeSetupStateOnRenderContext(instance) {
|
|
const { ctx, setupState } = instance;
|
|
Object.keys(toRaw(setupState)).forEach(key => {
|
|
if (key[0] === '$' || key[0] === '_') {
|
|
warn(`setup() return property ${JSON.stringify(key)} should not start with "$" or "_" ` +
|
|
`which are reserved prefixes for Vue internals.`);
|
|
return;
|
|
}
|
|
Object.defineProperty(ctx, key, {
|
|
enumerable: true,
|
|
configurable: true,
|
|
get: () => setupState[key],
|
|
set: NOOP
|
|
});
|
|
});
|
|
}
|
|
|
|
const emptyAppContext = createAppContext();
|
|
let uid$2 = 0;
|
|
function createComponentInstance(vnode, parent, suspense) {
|
|
const type = vnode.type;
|
|
// inherit parent app context - or - if root, adopt from root vnode
|
|
const appContext = (parent ? parent.appContext : vnode.appContext) || emptyAppContext;
|
|
const instance = {
|
|
uid: uid$2++,
|
|
vnode,
|
|
type,
|
|
parent,
|
|
appContext,
|
|
root: null,
|
|
next: null,
|
|
subTree: null,
|
|
update: null,
|
|
render: null,
|
|
proxy: null,
|
|
withProxy: null,
|
|
effects: null,
|
|
provides: parent ? parent.provides : Object.create(appContext.provides),
|
|
accessCache: null,
|
|
renderCache: [],
|
|
// local resovled assets
|
|
components: null,
|
|
directives: null,
|
|
// resolved props and emits options
|
|
propsOptions: normalizePropsOptions(type, appContext),
|
|
emitsOptions: normalizeEmitsOptions(type, appContext),
|
|
// emit
|
|
emit: null,
|
|
emitted: null,
|
|
// state
|
|
ctx: EMPTY_OBJ,
|
|
data: EMPTY_OBJ,
|
|
props: EMPTY_OBJ,
|
|
attrs: EMPTY_OBJ,
|
|
slots: EMPTY_OBJ,
|
|
refs: EMPTY_OBJ,
|
|
setupState: EMPTY_OBJ,
|
|
setupContext: null,
|
|
// suspense related
|
|
suspense,
|
|
suspenseId: suspense ? suspense.pendingId : 0,
|
|
asyncDep: null,
|
|
asyncResolved: false,
|
|
// lifecycle hooks
|
|
// not using enums here because it results in computed properties
|
|
isMounted: false,
|
|
isUnmounted: false,
|
|
isDeactivated: false,
|
|
bc: null,
|
|
c: null,
|
|
bm: null,
|
|
m: null,
|
|
bu: null,
|
|
u: null,
|
|
um: null,
|
|
bum: null,
|
|
da: null,
|
|
a: null,
|
|
rtg: null,
|
|
rtc: null,
|
|
ec: null
|
|
};
|
|
{
|
|
instance.ctx = createRenderContext(instance);
|
|
}
|
|
instance.root = parent ? parent.root : instance;
|
|
instance.emit = emit.bind(null, instance);
|
|
{
|
|
devtoolsComponentAdded(instance);
|
|
}
|
|
return instance;
|
|
}
|
|
let currentInstance = null;
|
|
const getCurrentInstance = () => currentInstance || currentRenderingInstance;
|
|
const setCurrentInstance = (instance) => {
|
|
currentInstance = instance;
|
|
};
|
|
const isBuiltInTag = /*#__PURE__*/ makeMap('slot,component');
|
|
function validateComponentName(name, config) {
|
|
const appIsNativeTag = config.isNativeTag || NO;
|
|
if (isBuiltInTag(name) || appIsNativeTag(name)) {
|
|
warn('Do not use built-in or reserved HTML elements as component id: ' + name);
|
|
}
|
|
}
|
|
let isInSSRComponentSetup = false;
|
|
function setupComponent(instance, isSSR = false) {
|
|
isInSSRComponentSetup = isSSR;
|
|
const { props, children, shapeFlag } = instance.vnode;
|
|
const isStateful = shapeFlag & 4 /* STATEFUL_COMPONENT */;
|
|
initProps(instance, props, isStateful, isSSR);
|
|
initSlots(instance, children);
|
|
const setupResult = isStateful
|
|
? setupStatefulComponent(instance, isSSR)
|
|
: undefined;
|
|
isInSSRComponentSetup = false;
|
|
return setupResult;
|
|
}
|
|
function setupStatefulComponent(instance, isSSR) {
|
|
const Component = instance.type;
|
|
{
|
|
if (Component.name) {
|
|
validateComponentName(Component.name, instance.appContext.config);
|
|
}
|
|
if (Component.components) {
|
|
const names = Object.keys(Component.components);
|
|
for (let i = 0; i < names.length; i++) {
|
|
validateComponentName(names[i], instance.appContext.config);
|
|
}
|
|
}
|
|
if (Component.directives) {
|
|
const names = Object.keys(Component.directives);
|
|
for (let i = 0; i < names.length; i++) {
|
|
validateDirectiveName(names[i]);
|
|
}
|
|
}
|
|
}
|
|
// 0. create render proxy property access cache
|
|
instance.accessCache = Object.create(null);
|
|
// 1. create public instance / render proxy
|
|
// also mark it raw so it's never observed
|
|
instance.proxy = new Proxy(instance.ctx, PublicInstanceProxyHandlers);
|
|
{
|
|
exposePropsOnRenderContext(instance);
|
|
}
|
|
// 2. call setup()
|
|
const { setup } = Component;
|
|
if (setup) {
|
|
const setupContext = (instance.setupContext =
|
|
setup.length > 1 ? createSetupContext(instance) : null);
|
|
currentInstance = instance;
|
|
pauseTracking();
|
|
const setupResult = callWithErrorHandling(setup, instance, 0 /* SETUP_FUNCTION */, [ shallowReadonly(instance.props) , setupContext]);
|
|
resetTracking();
|
|
currentInstance = null;
|
|
if (isPromise(setupResult)) {
|
|
if (isSSR) {
|
|
// return the promise so server-renderer can wait on it
|
|
return setupResult.then((resolvedResult) => {
|
|
handleSetupResult(instance, resolvedResult);
|
|
});
|
|
}
|
|
else {
|
|
// async setup returned Promise.
|
|
// bail here and wait for re-entry.
|
|
instance.asyncDep = setupResult;
|
|
}
|
|
}
|
|
else {
|
|
handleSetupResult(instance, setupResult);
|
|
}
|
|
}
|
|
else {
|
|
finishComponentSetup(instance);
|
|
}
|
|
}
|
|
function handleSetupResult(instance, setupResult, isSSR) {
|
|
if (isFunction(setupResult)) {
|
|
// setup returned an inline render function
|
|
instance.render = setupResult;
|
|
}
|
|
else if (isObject(setupResult)) {
|
|
if ( isVNode(setupResult)) {
|
|
warn(`setup() should not return VNodes directly - ` +
|
|
`return a render function instead.`);
|
|
}
|
|
// setup returned bindings.
|
|
// assuming a render function compiled from template is present.
|
|
{
|
|
instance.devtoolsRawSetupState = setupResult;
|
|
}
|
|
instance.setupState = proxyRefs(setupResult);
|
|
{
|
|
exposeSetupStateOnRenderContext(instance);
|
|
}
|
|
}
|
|
else if ( setupResult !== undefined) {
|
|
warn(`setup() should return an object. Received: ${setupResult === null ? 'null' : typeof setupResult}`);
|
|
}
|
|
finishComponentSetup(instance);
|
|
}
|
|
let compile;
|
|
/**
|
|
* For runtime-dom to register the compiler.
|
|
* Note the exported method uses any to avoid d.ts relying on the compiler types.
|
|
*/
|
|
function registerRuntimeCompiler(_compile) {
|
|
compile = _compile;
|
|
}
|
|
function finishComponentSetup(instance, isSSR) {
|
|
const Component = instance.type;
|
|
// template / render function normalization
|
|
if (!instance.render) {
|
|
// could be set from setup()
|
|
if (compile && Component.template && !Component.render) {
|
|
{
|
|
startMeasure(instance, `compile`);
|
|
}
|
|
Component.render = compile(Component.template, {
|
|
isCustomElement: instance.appContext.config.isCustomElement,
|
|
delimiters: Component.delimiters
|
|
});
|
|
{
|
|
endMeasure(instance, `compile`);
|
|
}
|
|
}
|
|
instance.render = (Component.render || NOOP);
|
|
// for runtime-compiled render functions using `with` blocks, the render
|
|
// proxy used needs a different `has` handler which is more performant and
|
|
// also only allows a whitelist of globals to fallthrough.
|
|
if (instance.render._rc) {
|
|
instance.withProxy = new Proxy(instance.ctx, RuntimeCompiledPublicInstanceProxyHandlers);
|
|
}
|
|
}
|
|
// support for 2.x options
|
|
{
|
|
currentInstance = instance;
|
|
applyOptions(instance, Component);
|
|
currentInstance = null;
|
|
}
|
|
// warn missing template/render
|
|
if ( !Component.render && instance.render === NOOP) {
|
|
/* istanbul ignore if */
|
|
if (!compile && Component.template) {
|
|
warn(`Component provided template option but ` +
|
|
`runtime compilation is not supported in this build of Vue.` +
|
|
( ` Use "vue.global.js" instead.`
|
|
) /* should not happen */);
|
|
}
|
|
else {
|
|
warn(`Component is missing template or render function.`);
|
|
}
|
|
}
|
|
}
|
|
const attrHandlers = {
|
|
get: (target, key) => {
|
|
{
|
|
markAttrsAccessed();
|
|
}
|
|
return target[key];
|
|
},
|
|
set: () => {
|
|
warn(`setupContext.attrs is readonly.`);
|
|
return false;
|
|
},
|
|
deleteProperty: () => {
|
|
warn(`setupContext.attrs is readonly.`);
|
|
return false;
|
|
}
|
|
};
|
|
function createSetupContext(instance) {
|
|
{
|
|
// We use getters in dev in case libs like test-utils overwrite instance
|
|
// properties (overwrites should not be done in prod)
|
|
return Object.freeze({
|
|
get attrs() {
|
|
return new Proxy(instance.attrs, attrHandlers);
|
|
},
|
|
get slots() {
|
|
return shallowReadonly(instance.slots);
|
|
},
|
|
get emit() {
|
|
return (event, ...args) => instance.emit(event, ...args);
|
|
}
|
|
});
|
|
}
|
|
}
|
|
// record effects created during a component's setup() so that they can be
|
|
// stopped when the component unmounts
|
|
function recordInstanceBoundEffect(effect) {
|
|
if (currentInstance) {
|
|
(currentInstance.effects || (currentInstance.effects = [])).push(effect);
|
|
}
|
|
}
|
|
const classifyRE = /(?:^|[-_])(\w)/g;
|
|
const classify = (str) => str.replace(classifyRE, c => c.toUpperCase()).replace(/[-_]/g, '');
|
|
/* istanbul ignore next */
|
|
function formatComponentName(instance, Component, isRoot = false) {
|
|
let name = isFunction(Component)
|
|
? Component.displayName || Component.name
|
|
: Component.name;
|
|
if (!name && Component.__file) {
|
|
const match = Component.__file.match(/([^/\\]+)\.vue$/);
|
|
if (match) {
|
|
name = match[1];
|
|
}
|
|
}
|
|
if (!name && instance && instance.parent) {
|
|
// try to infer the name based on reverse resolution
|
|
const inferFromRegistry = (registry) => {
|
|
for (const key in registry) {
|
|
if (registry[key] === Component) {
|
|
return key;
|
|
}
|
|
}
|
|
};
|
|
name =
|
|
inferFromRegistry(instance.components ||
|
|
instance.parent.type.components) || inferFromRegistry(instance.appContext.components);
|
|
}
|
|
return name ? classify(name) : isRoot ? `App` : `Anonymous`;
|
|
}
|
|
function isClassComponent(value) {
|
|
return isFunction(value) && '__vccOpts' in value;
|
|
}
|
|
|
|
function computed$1(getterOrOptions) {
|
|
const c = computed(getterOrOptions);
|
|
recordInstanceBoundEffect(c.effect);
|
|
return c;
|
|
}
|
|
|
|
// implementation, close to no-op
|
|
function defineComponent(options) {
|
|
return isFunction(options) ? { setup: options, name: options.name } : options;
|
|
}
|
|
|
|
function defineAsyncComponent(source) {
|
|
if (isFunction(source)) {
|
|
source = { loader: source };
|
|
}
|
|
const { loader, loadingComponent: loadingComponent, errorComponent: errorComponent, delay = 200, timeout, // undefined = never times out
|
|
suspensible = true, onError: userOnError } = source;
|
|
let pendingRequest = null;
|
|
let resolvedComp;
|
|
let retries = 0;
|
|
const retry = () => {
|
|
retries++;
|
|
pendingRequest = null;
|
|
return load();
|
|
};
|
|
const load = () => {
|
|
let thisRequest;
|
|
return (pendingRequest ||
|
|
(thisRequest = pendingRequest = loader()
|
|
.catch(err => {
|
|
err = err instanceof Error ? err : new Error(String(err));
|
|
if (userOnError) {
|
|
return new Promise((resolve, reject) => {
|
|
const userRetry = () => resolve(retry());
|
|
const userFail = () => reject(err);
|
|
userOnError(err, userRetry, userFail, retries + 1);
|
|
});
|
|
}
|
|
else {
|
|
throw err;
|
|
}
|
|
})
|
|
.then((comp) => {
|
|
if (thisRequest !== pendingRequest && pendingRequest) {
|
|
return pendingRequest;
|
|
}
|
|
if ( !comp) {
|
|
warn(`Async component loader resolved to undefined. ` +
|
|
`If you are using retry(), make sure to return its return value.`);
|
|
}
|
|
// interop module default
|
|
if (comp &&
|
|
(comp.__esModule || comp[Symbol.toStringTag] === 'Module')) {
|
|
comp = comp.default;
|
|
}
|
|
if ( comp && !isObject(comp) && !isFunction(comp)) {
|
|
throw new Error(`Invalid async component load result: ${comp}`);
|
|
}
|
|
resolvedComp = comp;
|
|
return comp;
|
|
})));
|
|
};
|
|
return defineComponent({
|
|
__asyncLoader: load,
|
|
name: 'AsyncComponentWrapper',
|
|
setup() {
|
|
const instance = currentInstance;
|
|
// already resolved
|
|
if (resolvedComp) {
|
|
return () => createInnerComp(resolvedComp, instance);
|
|
}
|
|
const onError = (err) => {
|
|
pendingRequest = null;
|
|
handleError(err, instance, 13 /* ASYNC_COMPONENT_LOADER */, !errorComponent /* do not throw in dev if user provided error component */);
|
|
};
|
|
// suspense-controlled or SSR.
|
|
if (( suspensible && instance.suspense) ||
|
|
(false )) {
|
|
return load()
|
|
.then(comp => {
|
|
return () => createInnerComp(comp, instance);
|
|
})
|
|
.catch(err => {
|
|
onError(err);
|
|
return () => errorComponent
|
|
? createVNode(errorComponent, {
|
|
error: err
|
|
})
|
|
: null;
|
|
});
|
|
}
|
|
const loaded = ref(false);
|
|
const error = ref();
|
|
const delayed = ref(!!delay);
|
|
if (delay) {
|
|
setTimeout(() => {
|
|
delayed.value = false;
|
|
}, delay);
|
|
}
|
|
if (timeout != null) {
|
|
setTimeout(() => {
|
|
if (!loaded.value && !error.value) {
|
|
const err = new Error(`Async component timed out after ${timeout}ms.`);
|
|
onError(err);
|
|
error.value = err;
|
|
}
|
|
}, timeout);
|
|
}
|
|
load()
|
|
.then(() => {
|
|
loaded.value = true;
|
|
})
|
|
.catch(err => {
|
|
onError(err);
|
|
error.value = err;
|
|
});
|
|
return () => {
|
|
if (loaded.value && resolvedComp) {
|
|
return createInnerComp(resolvedComp, instance);
|
|
}
|
|
else if (error.value && errorComponent) {
|
|
return createVNode(errorComponent, {
|
|
error: error.value
|
|
});
|
|
}
|
|
else if (loadingComponent && !delayed.value) {
|
|
return createVNode(loadingComponent);
|
|
}
|
|
};
|
|
}
|
|
});
|
|
}
|
|
function createInnerComp(comp, { vnode: { props, children } }) {
|
|
return createVNode(comp, props, children);
|
|
}
|
|
|
|
// Actual implementation
|
|
function h(type, propsOrChildren, children) {
|
|
const l = arguments.length;
|
|
if (l === 2) {
|
|
if (isObject(propsOrChildren) && !isArray(propsOrChildren)) {
|
|
// single vnode without props
|
|
if (isVNode(propsOrChildren)) {
|
|
return createVNode(type, null, [propsOrChildren]);
|
|
}
|
|
// props without children
|
|
return createVNode(type, propsOrChildren);
|
|
}
|
|
else {
|
|
// omit props
|
|
return createVNode(type, null, propsOrChildren);
|
|
}
|
|
}
|
|
else {
|
|
if (l > 3) {
|
|
children = Array.prototype.slice.call(arguments, 2);
|
|
}
|
|
else if (l === 3 && isVNode(children)) {
|
|
children = [children];
|
|
}
|
|
return createVNode(type, propsOrChildren, children);
|
|
}
|
|
}
|
|
|
|
const ssrContextKey = Symbol( `ssrContext` );
|
|
const useSSRContext = () => {
|
|
{
|
|
warn(`useSsrContext() is not supported in the global build.`);
|
|
}
|
|
};
|
|
|
|
function initCustomFormatter() {
|
|
const vueStyle = { style: 'color:#3ba776' };
|
|
const numberStyle = { style: 'color:#0b1bc9' };
|
|
const stringStyle = { style: 'color:#b62e24' };
|
|
const keywordStyle = { style: 'color:#9d288c' };
|
|
// custom formatter for Chrome
|
|
// https://www.mattzeunert.com/2016/02/19/custom-chrome-devtools-object-formatters.html
|
|
const formatter = {
|
|
header(obj) {
|
|
// TODO also format ComponentPublicInstance & ctx.slots/attrs in setup
|
|
if (!isObject(obj)) {
|
|
return null;
|
|
}
|
|
if (obj.__isVue) {
|
|
return ['div', vueStyle, `VueInstance`];
|
|
}
|
|
else if (isRef(obj)) {
|
|
return [
|
|
'div',
|
|
{},
|
|
['span', vueStyle, genRefFlag(obj)],
|
|
'<',
|
|
formatValue(obj.value),
|
|
`>`
|
|
];
|
|
}
|
|
else if (isReactive(obj)) {
|
|
return [
|
|
'div',
|
|
{},
|
|
['span', vueStyle, 'Reactive'],
|
|
'<',
|
|
formatValue(obj),
|
|
`>${isReadonly(obj) ? ` (readonly)` : ``}`
|
|
];
|
|
}
|
|
else if (isReadonly(obj)) {
|
|
return [
|
|
'div',
|
|
{},
|
|
['span', vueStyle, 'Readonly'],
|
|
'<',
|
|
formatValue(obj),
|
|
'>'
|
|
];
|
|
}
|
|
return null;
|
|
},
|
|
hasBody(obj) {
|
|
return obj && obj.__isVue;
|
|
},
|
|
body(obj) {
|
|
if (obj && obj.__isVue) {
|
|
return [
|
|
'div',
|
|
{},
|
|
...formatInstance(obj.$)
|
|
];
|
|
}
|
|
}
|
|
};
|
|
function formatInstance(instance) {
|
|
const blocks = [];
|
|
if (instance.type.props && instance.props) {
|
|
blocks.push(createInstanceBlock('props', toRaw(instance.props)));
|
|
}
|
|
if (instance.setupState !== EMPTY_OBJ) {
|
|
blocks.push(createInstanceBlock('setup', instance.setupState));
|
|
}
|
|
if (instance.data !== EMPTY_OBJ) {
|
|
blocks.push(createInstanceBlock('data', toRaw(instance.data)));
|
|
}
|
|
const computed = extractKeys(instance, 'computed');
|
|
if (computed) {
|
|
blocks.push(createInstanceBlock('computed', computed));
|
|
}
|
|
const injected = extractKeys(instance, 'inject');
|
|
if (injected) {
|
|
blocks.push(createInstanceBlock('injected', injected));
|
|
}
|
|
blocks.push([
|
|
'div',
|
|
{},
|
|
[
|
|
'span',
|
|
{
|
|
style: keywordStyle.style + ';opacity:0.66'
|
|
},
|
|
'$ (internal): '
|
|
],
|
|
['object', { object: instance }]
|
|
]);
|
|
return blocks;
|
|
}
|
|
function createInstanceBlock(type, target) {
|
|
target = extend({}, target);
|
|
if (!Object.keys(target).length) {
|
|
return ['span', {}];
|
|
}
|
|
return [
|
|
'div',
|
|
{ style: 'line-height:1.25em;margin-bottom:0.6em' },
|
|
[
|
|
'div',
|
|
{
|
|
style: 'color:#476582'
|
|
},
|
|
type
|
|
],
|
|
[
|
|
'div',
|
|
{
|
|
style: 'padding-left:1.25em'
|
|
},
|
|
...Object.keys(target).map(key => {
|
|
return [
|
|
'div',
|
|
{},
|
|
['span', keywordStyle, key + ': '],
|
|
formatValue(target[key], false)
|
|
];
|
|
})
|
|
]
|
|
];
|
|
}
|
|
function formatValue(v, asRaw = true) {
|
|
if (typeof v === 'number') {
|
|
return ['span', numberStyle, v];
|
|
}
|
|
else if (typeof v === 'string') {
|
|
return ['span', stringStyle, JSON.stringify(v)];
|
|
}
|
|
else if (typeof v === 'boolean') {
|
|
return ['span', keywordStyle, v];
|
|
}
|
|
else if (isObject(v)) {
|
|
return ['object', { object: asRaw ? toRaw(v) : v }];
|
|
}
|
|
else {
|
|
return ['span', stringStyle, String(v)];
|
|
}
|
|
}
|
|
function extractKeys(instance, type) {
|
|
const Comp = instance.type;
|
|
if (isFunction(Comp)) {
|
|
return;
|
|
}
|
|
const extracted = {};
|
|
for (const key in instance.ctx) {
|
|
if (isKeyOfType(Comp, key, type)) {
|
|
extracted[key] = instance.ctx[key];
|
|
}
|
|
}
|
|
return extracted;
|
|
}
|
|
function isKeyOfType(Comp, key, type) {
|
|
const opts = Comp[type];
|
|
if ((isArray(opts) && opts.includes(key)) ||
|
|
(isObject(opts) && key in opts)) {
|
|
return true;
|
|
}
|
|
if (Comp.extends && isKeyOfType(Comp.extends, key, type)) {
|
|
return true;
|
|
}
|
|
if (Comp.mixins && Comp.mixins.some(m => isKeyOfType(m, key, type))) {
|
|
return true;
|
|
}
|
|
}
|
|
function genRefFlag(v) {
|
|
if (v._shallow) {
|
|
return `ShallowRef`;
|
|
}
|
|
if (v.effect) {
|
|
return `ComputedRef`;
|
|
}
|
|
return `Ref`;
|
|
}
|
|
/* eslint-disable no-restricted-globals */
|
|
if (window.devtoolsFormatters) {
|
|
window.devtoolsFormatters.push(formatter);
|
|
}
|
|
else {
|
|
window.devtoolsFormatters = [formatter];
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Actual implementation
|
|
*/
|
|
function renderList(source, renderItem) {
|
|
let ret;
|
|
if (isArray(source) || isString(source)) {
|
|
ret = new Array(source.length);
|
|
for (let i = 0, l = source.length; i < l; i++) {
|
|
ret[i] = renderItem(source[i], i);
|
|
}
|
|
}
|
|
else if (typeof source === 'number') {
|
|
if ( !Number.isInteger(source)) {
|
|
warn(`The v-for range expect an integer value but got ${source}.`);
|
|
return [];
|
|
}
|
|
ret = new Array(source);
|
|
for (let i = 0; i < source; i++) {
|
|
ret[i] = renderItem(i + 1, i);
|
|
}
|
|
}
|
|
else if (isObject(source)) {
|
|
if (source[Symbol.iterator]) {
|
|
ret = Array.from(source, renderItem);
|
|
}
|
|
else {
|
|
const keys = Object.keys(source);
|
|
ret = new Array(keys.length);
|
|
for (let i = 0, l = keys.length; i < l; i++) {
|
|
const key = keys[i];
|
|
ret[i] = renderItem(source[key], key, i);
|
|
}
|
|
}
|
|
}
|
|
else {
|
|
ret = [];
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
/**
|
|
* For prefixing keys in v-on="obj" with "on"
|
|
* @private
|
|
*/
|
|
function toHandlers(obj) {
|
|
const ret = {};
|
|
if ( !isObject(obj)) {
|
|
warn(`v-on with no argument expects an object value.`);
|
|
return ret;
|
|
}
|
|
for (const key in obj) {
|
|
ret[toHandlerKey(key)] = obj[key];
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
/**
|
|
* Compiler runtime helper for creating dynamic slots object
|
|
* @private
|
|
*/
|
|
function createSlots(slots, dynamicSlots) {
|
|
for (let i = 0; i < dynamicSlots.length; i++) {
|
|
const slot = dynamicSlots[i];
|
|
// array of dynamic slot generated by <template v-for="..." #[...]>
|
|
if (isArray(slot)) {
|
|
for (let j = 0; j < slot.length; j++) {
|
|
slots[slot[j].name] = slot[j].fn;
|
|
}
|
|
}
|
|
else if (slot) {
|
|
// conditional single slot generated by <template v-if="..." #foo>
|
|
slots[slot.name] = slot.fn;
|
|
}
|
|
}
|
|
return slots;
|
|
}
|
|
|
|
// Core API ------------------------------------------------------------------
|
|
const version = "3.0.2";
|
|
/**
|
|
* SSR utils for \@vue/server-renderer. Only exposed in cjs builds.
|
|
* @internal
|
|
*/
|
|
const ssrUtils = ( null);
|
|
|
|
const svgNS = 'http://www.w3.org/2000/svg';
|
|
const doc = (typeof document !== 'undefined' ? document : null);
|
|
let tempContainer;
|
|
let tempSVGContainer;
|
|
const nodeOps = {
|
|
insert: (child, parent, anchor) => {
|
|
parent.insertBefore(child, anchor || null);
|
|
},
|
|
remove: child => {
|
|
const parent = child.parentNode;
|
|
if (parent) {
|
|
parent.removeChild(child);
|
|
}
|
|
},
|
|
createElement: (tag, isSVG, is) => isSVG
|
|
? doc.createElementNS(svgNS, tag)
|
|
: doc.createElement(tag, is ? { is } : undefined),
|
|
createText: text => doc.createTextNode(text),
|
|
createComment: text => doc.createComment(text),
|
|
setText: (node, text) => {
|
|
node.nodeValue = text;
|
|
},
|
|
setElementText: (el, text) => {
|
|
el.textContent = text;
|
|
},
|
|
parentNode: node => node.parentNode,
|
|
nextSibling: node => node.nextSibling,
|
|
querySelector: selector => doc.querySelector(selector),
|
|
setScopeId(el, id) {
|
|
el.setAttribute(id, '');
|
|
},
|
|
cloneNode(el) {
|
|
return el.cloneNode(true);
|
|
},
|
|
// __UNSAFE__
|
|
// Reason: innerHTML.
|
|
// Static content here can only come from compiled templates.
|
|
// As long as the user only uses trusted templates, this is safe.
|
|
insertStaticContent(content, parent, anchor, isSVG) {
|
|
const temp = isSVG
|
|
? tempSVGContainer ||
|
|
(tempSVGContainer = doc.createElementNS(svgNS, 'svg'))
|
|
: tempContainer || (tempContainer = doc.createElement('div'));
|
|
temp.innerHTML = content;
|
|
const first = temp.firstChild;
|
|
let node = first;
|
|
let last = node;
|
|
while (node) {
|
|
last = node;
|
|
nodeOps.insert(node, parent, anchor);
|
|
node = temp.firstChild;
|
|
}
|
|
return [first, last];
|
|
}
|
|
};
|
|
|
|
// compiler should normalize class + :class bindings on the same element
|
|
// into a single binding ['staticClass', dynamic]
|
|
function patchClass(el, value, isSVG) {
|
|
if (value == null) {
|
|
value = '';
|
|
}
|
|
if (isSVG) {
|
|
el.setAttribute('class', value);
|
|
}
|
|
else {
|
|
// directly setting className should be faster than setAttribute in theory
|
|
// if this is an element during a transition, take the temporary transition
|
|
// classes into account.
|
|
const transitionClasses = el._vtc;
|
|
if (transitionClasses) {
|
|
value = (value
|
|
? [value, ...transitionClasses]
|
|
: [...transitionClasses]).join(' ');
|
|
}
|
|
el.className = value;
|
|
}
|
|
}
|
|
|
|
function patchStyle(el, prev, next) {
|
|
const style = el.style;
|
|
if (!next) {
|
|
el.removeAttribute('style');
|
|
}
|
|
else if (isString(next)) {
|
|
if (prev !== next) {
|
|
style.cssText = next;
|
|
}
|
|
}
|
|
else {
|
|
for (const key in next) {
|
|
setStyle(style, key, next[key]);
|
|
}
|
|
if (prev && !isString(prev)) {
|
|
for (const key in prev) {
|
|
if (next[key] == null) {
|
|
setStyle(style, key, '');
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
const importantRE = /\s*!important$/;
|
|
function setStyle(style, name, val) {
|
|
if (isArray(val)) {
|
|
val.forEach(v => setStyle(style, name, v));
|
|
}
|
|
else {
|
|
if (name.startsWith('--')) {
|
|
// custom property definition
|
|
style.setProperty(name, val);
|
|
}
|
|
else {
|
|
const prefixed = autoPrefix(style, name);
|
|
if (importantRE.test(val)) {
|
|
// !important
|
|
style.setProperty(hyphenate(prefixed), val.replace(importantRE, ''), 'important');
|
|
}
|
|
else {
|
|
style[prefixed] = val;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
const prefixes = ['Webkit', 'Moz', 'ms'];
|
|
const prefixCache = {};
|
|
function autoPrefix(style, rawName) {
|
|
const cached = prefixCache[rawName];
|
|
if (cached) {
|
|
return cached;
|
|
}
|
|
let name = camelize(rawName);
|
|
if (name !== 'filter' && name in style) {
|
|
return (prefixCache[rawName] = name);
|
|
}
|
|
name = capitalize(name);
|
|
for (let i = 0; i < prefixes.length; i++) {
|
|
const prefixed = prefixes[i] + name;
|
|
if (prefixed in style) {
|
|
return (prefixCache[rawName] = prefixed);
|
|
}
|
|
}
|
|
return rawName;
|
|
}
|
|
|
|
const xlinkNS = 'http://www.w3.org/1999/xlink';
|
|
function patchAttr(el, key, value, isSVG) {
|
|
if (isSVG && key.startsWith('xlink:')) {
|
|
if (value == null) {
|
|
el.removeAttributeNS(xlinkNS, key.slice(6, key.length));
|
|
}
|
|
else {
|
|
el.setAttributeNS(xlinkNS, key, value);
|
|
}
|
|
}
|
|
else {
|
|
// note we are only checking boolean attributes that don't have a
|
|
// corresponding dom prop of the same name here.
|
|
const isBoolean = isSpecialBooleanAttr(key);
|
|
if (value == null || (isBoolean && value === false)) {
|
|
el.removeAttribute(key);
|
|
}
|
|
else {
|
|
el.setAttribute(key, isBoolean ? '' : value);
|
|
}
|
|
}
|
|
}
|
|
|
|
// __UNSAFE__
|
|
// functions. The user is responsible for using them with only trusted content.
|
|
function patchDOMProp(el, key, value,
|
|
// the following args are passed only due to potential innerHTML/textContent
|
|
// overriding existing VNodes, in which case the old tree must be properly
|
|
// unmounted.
|
|
prevChildren, parentComponent, parentSuspense, unmountChildren) {
|
|
if (key === 'innerHTML' || key === 'textContent') {
|
|
if (prevChildren) {
|
|
unmountChildren(prevChildren, parentComponent, parentSuspense);
|
|
}
|
|
el[key] = value == null ? '' : value;
|
|
return;
|
|
}
|
|
if (key === 'value' && el.tagName !== 'PROGRESS') {
|
|
// store value as _value as well since
|
|
// non-string values will be stringified.
|
|
el._value = value;
|
|
const newValue = value == null ? '' : value;
|
|
if (el.value !== newValue) {
|
|
el.value = newValue;
|
|
}
|
|
return;
|
|
}
|
|
if (value === '' && typeof el[key] === 'boolean') {
|
|
// e.g. <select multiple> compiles to { multiple: '' }
|
|
el[key] = true;
|
|
}
|
|
else if (value == null && typeof el[key] === 'string') {
|
|
// e.g. <div :id="null">
|
|
el[key] = '';
|
|
el.removeAttribute(key);
|
|
}
|
|
else {
|
|
// some properties perform value validation and throw
|
|
try {
|
|
el[key] = value;
|
|
}
|
|
catch (e) {
|
|
{
|
|
warn(`Failed setting prop "${key}" on <${el.tagName.toLowerCase()}>: ` +
|
|
`value ${value} is invalid.`, e);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// 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.
|
|
if (typeof document !== 'undefined' &&
|
|
_getNow() > document.createEvent('Event').timeStamp) {
|
|
// if the low-res timestamp which is bigger than the event timestamp
|
|
// (which is evaluated AFTER) it means the event is using a hi-res timestamp,
|
|
// and we need to use the hi-res version for event listeners as well.
|
|
_getNow = () => performance.now();
|
|
}
|
|
// To avoid the overhead of repeatedly calling performance.now(), we cache
|
|
// and use the same timestamp for all event listeners attached in the same tick.
|
|
let cachedNow = 0;
|
|
const p = Promise.resolve();
|
|
const reset = () => {
|
|
cachedNow = 0;
|
|
};
|
|
const getNow = () => cachedNow || (p.then(reset), (cachedNow = _getNow()));
|
|
function addEventListener(el, event, handler, options) {
|
|
el.addEventListener(event, handler, options);
|
|
}
|
|
function removeEventListener(el, event, handler, options) {
|
|
el.removeEventListener(event, handler, options);
|
|
}
|
|
function patchEvent(el, rawName, prevValue, nextValue, instance = null) {
|
|
// vei = vue event invokers
|
|
const invokers = el._vei || (el._vei = {});
|
|
const existingInvoker = invokers[rawName];
|
|
if (nextValue && existingInvoker) {
|
|
// patch
|
|
existingInvoker.value = nextValue;
|
|
}
|
|
else {
|
|
const [name, options] = parseName(rawName);
|
|
if (nextValue) {
|
|
// add
|
|
const invoker = (invokers[rawName] = createInvoker(nextValue, instance));
|
|
addEventListener(el, name, invoker, options);
|
|
}
|
|
else if (existingInvoker) {
|
|
// remove
|
|
removeEventListener(el, name, existingInvoker, options);
|
|
invokers[rawName] = undefined;
|
|
}
|
|
}
|
|
}
|
|
const optionsModifierRE = /(?:Once|Passive|Capture)$/;
|
|
function parseName(name) {
|
|
let options;
|
|
if (optionsModifierRE.test(name)) {
|
|
options = {};
|
|
let m;
|
|
while ((m = name.match(optionsModifierRE))) {
|
|
name = name.slice(0, name.length - m[0].length);
|
|
options[m[0].toLowerCase()] = true;
|
|
}
|
|
}
|
|
return [name.slice(2).toLowerCase(), options];
|
|
}
|
|
function createInvoker(initialValue, instance) {
|
|
const invoker = (e) => {
|
|
// async edge case #6566: inner click event triggers patch, event handler
|
|
// attached to outer element during patch, and triggered again. This
|
|
// happens because browsers fire microtask ticks between event propagation.
|
|
// the solution is simple: we save the timestamp when a handler is attached,
|
|
// and the handler would only fire if the event passed to it was fired
|
|
// AFTER it was attached.
|
|
const timeStamp = e.timeStamp || _getNow();
|
|
if (timeStamp >= invoker.attached - 1) {
|
|
callWithAsyncErrorHandling(patchStopImmediatePropagation(e, invoker.value), instance, 5 /* NATIVE_EVENT_HANDLER */, [e]);
|
|
}
|
|
};
|
|
invoker.value = initialValue;
|
|
invoker.attached = getNow();
|
|
return invoker;
|
|
}
|
|
function patchStopImmediatePropagation(e, value) {
|
|
if (isArray(value)) {
|
|
const originalStop = e.stopImmediatePropagation;
|
|
e.stopImmediatePropagation = () => {
|
|
originalStop.call(e);
|
|
e._stopped = true;
|
|
};
|
|
return value.map(fn => (e) => !e._stopped && fn(e));
|
|
}
|
|
else {
|
|
return value;
|
|
}
|
|
}
|
|
|
|
const nativeOnRE = /^on[a-z]/;
|
|
const forcePatchProp = (_, key) => key === 'value';
|
|
const patchProp = (el, key, prevValue, nextValue, isSVG = false, prevChildren, parentComponent, parentSuspense, unmountChildren) => {
|
|
switch (key) {
|
|
// special
|
|
case 'class':
|
|
patchClass(el, nextValue, isSVG);
|
|
break;
|
|
case 'style':
|
|
patchStyle(el, prevValue, nextValue);
|
|
break;
|
|
default:
|
|
if (isOn(key)) {
|
|
// ignore v-model listeners
|
|
if (!isModelListener(key)) {
|
|
patchEvent(el, key, prevValue, nextValue, parentComponent);
|
|
}
|
|
}
|
|
else if (shouldSetAsProp(el, key, nextValue, isSVG)) {
|
|
patchDOMProp(el, key, nextValue, prevChildren, parentComponent, parentSuspense, unmountChildren);
|
|
}
|
|
else {
|
|
// special case for <input v-model type="checkbox"> with
|
|
// :true-value & :false-value
|
|
// store value as dom properties since non-string values will be
|
|
// stringified.
|
|
if (key === 'true-value') {
|
|
el._trueValue = nextValue;
|
|
}
|
|
else if (key === 'false-value') {
|
|
el._falseValue = nextValue;
|
|
}
|
|
patchAttr(el, key, nextValue, isSVG);
|
|
}
|
|
break;
|
|
}
|
|
};
|
|
function shouldSetAsProp(el, key, value, isSVG) {
|
|
if (isSVG) {
|
|
// most keys must be set as attribute on svg elements to work
|
|
// ...except innerHTML
|
|
if (key === 'innerHTML') {
|
|
return true;
|
|
}
|
|
// or native onclick with function values
|
|
if (key in el && nativeOnRE.test(key) && isFunction(value)) {
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
// spellcheck and draggable are numerated attrs, however their
|
|
// corresponding DOM properties are actually booleans - this leads to
|
|
// setting it with a string "false" value leading it to be coerced to
|
|
// `true`, so we need to always treat them as attributes.
|
|
// Note that `contentEditable` doesn't have this problem: its DOM
|
|
// property is also enumerated string values.
|
|
if (key === 'spellcheck' || key === 'draggable') {
|
|
return false;
|
|
}
|
|
// #1787 form as an attribute must be a string, while it accepts an Element as
|
|
// a prop
|
|
if (key === 'form' && typeof value === 'string') {
|
|
return false;
|
|
}
|
|
// #1526 <input list> must be set as attribute
|
|
if (key === 'list' && el.tagName === 'INPUT') {
|
|
return false;
|
|
}
|
|
// native onclick with string value, must be set as attribute
|
|
if (nativeOnRE.test(key) && isString(value)) {
|
|
return false;
|
|
}
|
|
return key in el;
|
|
}
|
|
|
|
function useCssModule(name = '$style') {
|
|
/* istanbul ignore else */
|
|
{
|
|
{
|
|
warn(`useCssModule() is not supported in the global build.`);
|
|
}
|
|
return EMPTY_OBJ;
|
|
}
|
|
}
|
|
|
|
function useCssVars(getter, scoped = false) {
|
|
const instance = getCurrentInstance();
|
|
/* istanbul ignore next */
|
|
if (!instance) {
|
|
|
|
warn(`useCssVars is called without current active component instance.`);
|
|
return;
|
|
}
|
|
const prefix = scoped && instance.type.__scopeId
|
|
? `${instance.type.__scopeId.replace(/^data-v-/, '')}-`
|
|
: ``;
|
|
const setVars = () => setVarsOnVNode(instance.subTree, getter(instance.proxy), prefix);
|
|
onMounted(() => watchEffect(setVars));
|
|
onUpdated(setVars);
|
|
}
|
|
function setVarsOnVNode(vnode, vars, prefix) {
|
|
if ( vnode.shapeFlag & 128 /* SUSPENSE */) {
|
|
const suspense = vnode.suspense;
|
|
vnode = suspense.activeBranch;
|
|
if (suspense.pendingBranch && !suspense.isHydrating) {
|
|
suspense.effects.push(() => {
|
|
setVarsOnVNode(suspense.activeBranch, vars, prefix);
|
|
});
|
|
}
|
|
}
|
|
// drill down HOCs until it's a non-component vnode
|
|
while (vnode.component) {
|
|
vnode = vnode.component.subTree;
|
|
}
|
|
if (vnode.shapeFlag & 1 /* ELEMENT */ && vnode.el) {
|
|
const style = vnode.el.style;
|
|
for (const key in vars) {
|
|
style.setProperty(`--${prefix}${key}`, unref(vars[key]));
|
|
}
|
|
}
|
|
else if (vnode.type === Fragment) {
|
|
vnode.children.forEach(c => setVarsOnVNode(c, vars, prefix));
|
|
}
|
|
}
|
|
|
|
const TRANSITION = 'transition';
|
|
const ANIMATION = 'animation';
|
|
// DOM Transition is a higher-order-component based on the platform-agnostic
|
|
// base Transition component, with DOM-specific logic.
|
|
const Transition = (props, { slots }) => h(BaseTransition, resolveTransitionProps(props), slots);
|
|
Transition.displayName = 'Transition';
|
|
const DOMTransitionPropsValidators = {
|
|
name: String,
|
|
type: String,
|
|
css: {
|
|
type: Boolean,
|
|
default: true
|
|
},
|
|
duration: [String, Number, Object],
|
|
enterFromClass: String,
|
|
enterActiveClass: String,
|
|
enterToClass: String,
|
|
appearFromClass: String,
|
|
appearActiveClass: String,
|
|
appearToClass: String,
|
|
leaveFromClass: String,
|
|
leaveActiveClass: String,
|
|
leaveToClass: String
|
|
};
|
|
const TransitionPropsValidators = (Transition.props = /*#__PURE__*/ extend({}, BaseTransition.props, DOMTransitionPropsValidators));
|
|
function resolveTransitionProps(rawProps) {
|
|
let { name = 'v', type, css = true, duration, enterFromClass = `${name}-enter-from`, enterActiveClass = `${name}-enter-active`, enterToClass = `${name}-enter-to`, appearFromClass = enterFromClass, appearActiveClass = enterActiveClass, appearToClass = enterToClass, leaveFromClass = `${name}-leave-from`, leaveActiveClass = `${name}-leave-active`, leaveToClass = `${name}-leave-to` } = rawProps;
|
|
const baseProps = {};
|
|
for (const key in rawProps) {
|
|
if (!(key in DOMTransitionPropsValidators)) {
|
|
baseProps[key] = rawProps[key];
|
|
}
|
|
}
|
|
if (!css) {
|
|
return baseProps;
|
|
}
|
|
const durations = normalizeDuration(duration);
|
|
const enterDuration = durations && durations[0];
|
|
const leaveDuration = durations && durations[1];
|
|
const { onBeforeEnter, onEnter, onEnterCancelled, onLeave, onLeaveCancelled, onBeforeAppear = onBeforeEnter, onAppear = onEnter, onAppearCancelled = onEnterCancelled } = baseProps;
|
|
const finishEnter = (el, isAppear, done) => {
|
|
removeTransitionClass(el, isAppear ? appearToClass : enterToClass);
|
|
removeTransitionClass(el, isAppear ? appearActiveClass : enterActiveClass);
|
|
done && done();
|
|
};
|
|
const finishLeave = (el, done) => {
|
|
removeTransitionClass(el, leaveToClass);
|
|
removeTransitionClass(el, leaveActiveClass);
|
|
done && done();
|
|
};
|
|
const makeEnterHook = (isAppear) => {
|
|
return (el, done) => {
|
|
const hook = isAppear ? onAppear : onEnter;
|
|
const resolve = () => finishEnter(el, isAppear, done);
|
|
hook && hook(el, resolve);
|
|
nextFrame(() => {
|
|
removeTransitionClass(el, isAppear ? appearFromClass : enterFromClass);
|
|
addTransitionClass(el, isAppear ? appearToClass : enterToClass);
|
|
if (!(hook && hook.length > 1)) {
|
|
if (enterDuration) {
|
|
setTimeout(resolve, enterDuration);
|
|
}
|
|
else {
|
|
whenTransitionEnds(el, type, resolve);
|
|
}
|
|
}
|
|
});
|
|
};
|
|
};
|
|
return extend(baseProps, {
|
|
onBeforeEnter(el) {
|
|
onBeforeEnter && onBeforeEnter(el);
|
|
addTransitionClass(el, enterActiveClass);
|
|
addTransitionClass(el, enterFromClass);
|
|
},
|
|
onBeforeAppear(el) {
|
|
onBeforeAppear && onBeforeAppear(el);
|
|
addTransitionClass(el, appearActiveClass);
|
|
addTransitionClass(el, appearFromClass);
|
|
},
|
|
onEnter: makeEnterHook(false),
|
|
onAppear: makeEnterHook(true),
|
|
onLeave(el, done) {
|
|
const resolve = () => finishLeave(el, done);
|
|
addTransitionClass(el, leaveActiveClass);
|
|
addTransitionClass(el, leaveFromClass);
|
|
nextFrame(() => {
|
|
removeTransitionClass(el, leaveFromClass);
|
|
addTransitionClass(el, leaveToClass);
|
|
if (!(onLeave && onLeave.length > 1)) {
|
|
if (leaveDuration) {
|
|
setTimeout(resolve, leaveDuration);
|
|
}
|
|
else {
|
|
whenTransitionEnds(el, type, resolve);
|
|
}
|
|
}
|
|
});
|
|
onLeave && onLeave(el, resolve);
|
|
},
|
|
onEnterCancelled(el) {
|
|
finishEnter(el, false);
|
|
onEnterCancelled && onEnterCancelled(el);
|
|
},
|
|
onAppearCancelled(el) {
|
|
finishEnter(el, true);
|
|
onAppearCancelled && onAppearCancelled(el);
|
|
},
|
|
onLeaveCancelled(el) {
|
|
finishLeave(el);
|
|
onLeaveCancelled && onLeaveCancelled(el);
|
|
}
|
|
});
|
|
}
|
|
function normalizeDuration(duration) {
|
|
if (duration == null) {
|
|
return null;
|
|
}
|
|
else if (isObject(duration)) {
|
|
return [NumberOf(duration.enter), NumberOf(duration.leave)];
|
|
}
|
|
else {
|
|
const n = NumberOf(duration);
|
|
return [n, n];
|
|
}
|
|
}
|
|
function NumberOf(val) {
|
|
const res = toNumber(val);
|
|
validateDuration(res);
|
|
return res;
|
|
}
|
|
function validateDuration(val) {
|
|
if (typeof val !== 'number') {
|
|
warn(`<transition> explicit duration is not a valid number - ` +
|
|
`got ${JSON.stringify(val)}.`);
|
|
}
|
|
else if (isNaN(val)) {
|
|
warn(`<transition> explicit duration is NaN - ` +
|
|
'the duration expression might be incorrect.');
|
|
}
|
|
}
|
|
function addTransitionClass(el, cls) {
|
|
cls.split(/\s+/).forEach(c => c && el.classList.add(c));
|
|
(el._vtc ||
|
|
(el._vtc = new Set())).add(cls);
|
|
}
|
|
function removeTransitionClass(el, cls) {
|
|
cls.split(/\s+/).forEach(c => c && el.classList.remove(c));
|
|
const { _vtc } = el;
|
|
if (_vtc) {
|
|
_vtc.delete(cls);
|
|
if (!_vtc.size) {
|
|
el._vtc = undefined;
|
|
}
|
|
}
|
|
}
|
|
function nextFrame(cb) {
|
|
requestAnimationFrame(() => {
|
|
requestAnimationFrame(cb);
|
|
});
|
|
}
|
|
function whenTransitionEnds(el, expectedType, cb) {
|
|
const { type, timeout, propCount } = getTransitionInfo(el, expectedType);
|
|
if (!type) {
|
|
return cb();
|
|
}
|
|
const endEvent = type + 'end';
|
|
let ended = 0;
|
|
const end = () => {
|
|
el.removeEventListener(endEvent, onEnd);
|
|
cb();
|
|
};
|
|
const onEnd = (e) => {
|
|
if (e.target === el) {
|
|
if (++ended >= propCount) {
|
|
end();
|
|
}
|
|
}
|
|
};
|
|
setTimeout(() => {
|
|
if (ended < propCount) {
|
|
end();
|
|
}
|
|
}, timeout + 1);
|
|
el.addEventListener(endEvent, onEnd);
|
|
}
|
|
function getTransitionInfo(el, expectedType) {
|
|
const styles = window.getComputedStyle(el);
|
|
// JSDOM may return undefined for transition properties
|
|
const getStyleProperties = (key) => (styles[key] || '').split(', ');
|
|
const transitionDelays = getStyleProperties(TRANSITION + 'Delay');
|
|
const transitionDurations = getStyleProperties(TRANSITION + 'Duration');
|
|
const transitionTimeout = getTimeout(transitionDelays, transitionDurations);
|
|
const animationDelays = getStyleProperties(ANIMATION + 'Delay');
|
|
const animationDurations = getStyleProperties(ANIMATION + 'Duration');
|
|
const animationTimeout = getTimeout(animationDelays, animationDurations);
|
|
let type = null;
|
|
let timeout = 0;
|
|
let propCount = 0;
|
|
/* istanbul ignore if */
|
|
if (expectedType === TRANSITION) {
|
|
if (transitionTimeout > 0) {
|
|
type = TRANSITION;
|
|
timeout = transitionTimeout;
|
|
propCount = transitionDurations.length;
|
|
}
|
|
}
|
|
else if (expectedType === ANIMATION) {
|
|
if (animationTimeout > 0) {
|
|
type = ANIMATION;
|
|
timeout = animationTimeout;
|
|
propCount = animationDurations.length;
|
|
}
|
|
}
|
|
else {
|
|
timeout = Math.max(transitionTimeout, animationTimeout);
|
|
type =
|
|
timeout > 0
|
|
? transitionTimeout > animationTimeout
|
|
? TRANSITION
|
|
: ANIMATION
|
|
: null;
|
|
propCount = type
|
|
? type === TRANSITION
|
|
? transitionDurations.length
|
|
: animationDurations.length
|
|
: 0;
|
|
}
|
|
const hasTransform = type === TRANSITION &&
|
|
/\b(transform|all)(,|$)/.test(styles[TRANSITION + 'Property']);
|
|
return {
|
|
type,
|
|
timeout,
|
|
propCount,
|
|
hasTransform
|
|
};
|
|
}
|
|
function getTimeout(delays, durations) {
|
|
while (delays.length < durations.length) {
|
|
delays = delays.concat(delays);
|
|
}
|
|
return Math.max(...durations.map((d, i) => toMs(d) + toMs(delays[i])));
|
|
}
|
|
// Old versions of Chromium (below 61.0.3163.100) formats floating pointer
|
|
// numbers in a locale-dependent way, using a comma instead of a dot.
|
|
// If comma is not replaced with a dot, the input will be rounded down
|
|
// (i.e. acting as a floor function) causing unexpected behaviors
|
|
function toMs(s) {
|
|
return Number(s.slice(0, -1).replace(',', '.')) * 1000;
|
|
}
|
|
|
|
const positionMap = new WeakMap();
|
|
const newPositionMap = new WeakMap();
|
|
const TransitionGroupImpl = {
|
|
name: 'TransitionGroup',
|
|
props: /*#__PURE__*/ extend({}, TransitionPropsValidators, {
|
|
tag: String,
|
|
moveClass: String
|
|
}),
|
|
setup(props, { slots }) {
|
|
const instance = getCurrentInstance();
|
|
const state = useTransitionState();
|
|
let prevChildren;
|
|
let children;
|
|
onUpdated(() => {
|
|
// children is guaranteed to exist after initial render
|
|
if (!prevChildren.length) {
|
|
return;
|
|
}
|
|
const moveClass = props.moveClass || `${props.name || 'v'}-move`;
|
|
if (!hasCSSTransform(prevChildren[0].el, instance.vnode.el, moveClass)) {
|
|
return;
|
|
}
|
|
// we divide the work into three loops to avoid mixing DOM reads and writes
|
|
// in each iteration - which helps prevent layout thrashing.
|
|
prevChildren.forEach(callPendingCbs);
|
|
prevChildren.forEach(recordPosition);
|
|
const movedChildren = prevChildren.filter(applyTranslation);
|
|
// force reflow to put everything in position
|
|
forceReflow();
|
|
movedChildren.forEach(c => {
|
|
const el = c.el;
|
|
const style = el.style;
|
|
addTransitionClass(el, moveClass);
|
|
style.transform = style.webkitTransform = style.transitionDuration = '';
|
|
const cb = (el._moveCb = (e) => {
|
|
if (e && e.target !== el) {
|
|
return;
|
|
}
|
|
if (!e || /transform$/.test(e.propertyName)) {
|
|
el.removeEventListener('transitionend', cb);
|
|
el._moveCb = null;
|
|
removeTransitionClass(el, moveClass);
|
|
}
|
|
});
|
|
el.addEventListener('transitionend', cb);
|
|
});
|
|
});
|
|
return () => {
|
|
const rawProps = toRaw(props);
|
|
const cssTransitionProps = resolveTransitionProps(rawProps);
|
|
const tag = rawProps.tag || Fragment;
|
|
prevChildren = children;
|
|
children = slots.default ? getTransitionRawChildren(slots.default()) : [];
|
|
for (let i = 0; i < children.length; i++) {
|
|
const child = children[i];
|
|
if (child.key != null) {
|
|
setTransitionHooks(child, resolveTransitionHooks(child, cssTransitionProps, state, instance));
|
|
}
|
|
else {
|
|
warn(`<TransitionGroup> children must be keyed.`);
|
|
}
|
|
}
|
|
if (prevChildren) {
|
|
for (let i = 0; i < prevChildren.length; i++) {
|
|
const child = prevChildren[i];
|
|
setTransitionHooks(child, resolveTransitionHooks(child, cssTransitionProps, state, instance));
|
|
positionMap.set(child, child.el.getBoundingClientRect());
|
|
}
|
|
}
|
|
return createVNode(tag, null, children);
|
|
};
|
|
}
|
|
};
|
|
const TransitionGroup = TransitionGroupImpl;
|
|
function callPendingCbs(c) {
|
|
const el = c.el;
|
|
if (el._moveCb) {
|
|
el._moveCb();
|
|
}
|
|
if (el._enterCb) {
|
|
el._enterCb();
|
|
}
|
|
}
|
|
function recordPosition(c) {
|
|
newPositionMap.set(c, c.el.getBoundingClientRect());
|
|
}
|
|
function applyTranslation(c) {
|
|
const oldPos = positionMap.get(c);
|
|
const newPos = newPositionMap.get(c);
|
|
const dx = oldPos.left - newPos.left;
|
|
const dy = oldPos.top - newPos.top;
|
|
if (dx || dy) {
|
|
const s = c.el.style;
|
|
s.transform = s.webkitTransform = `translate(${dx}px,${dy}px)`;
|
|
s.transitionDuration = '0s';
|
|
return c;
|
|
}
|
|
}
|
|
// this is put in a dedicated function to avoid the line from being treeshaken
|
|
function forceReflow() {
|
|
return document.body.offsetHeight;
|
|
}
|
|
function hasCSSTransform(el, root, moveClass) {
|
|
// Detect whether an element with the move class applied has
|
|
// CSS transitions. Since the element may be inside an entering
|
|
// transition at this very moment, we make a clone of it and remove
|
|
// all other transition classes applied to ensure only the move class
|
|
// is applied.
|
|
const clone = el.cloneNode();
|
|
if (el._vtc) {
|
|
el._vtc.forEach(cls => {
|
|
cls.split(/\s+/).forEach(c => c && clone.classList.remove(c));
|
|
});
|
|
}
|
|
moveClass.split(/\s+/).forEach(c => c && clone.classList.add(c));
|
|
clone.style.display = 'none';
|
|
const container = (root.nodeType === 1
|
|
? root
|
|
: root.parentNode);
|
|
container.appendChild(clone);
|
|
const { hasTransform } = getTransitionInfo(clone);
|
|
container.removeChild(clone);
|
|
return hasTransform;
|
|
}
|
|
|
|
const getModelAssigner = (vnode) => {
|
|
const fn = vnode.props['onUpdate:modelValue'];
|
|
return isArray(fn) ? value => invokeArrayFns(fn, value) : fn;
|
|
};
|
|
function onCompositionStart(e) {
|
|
e.target.composing = true;
|
|
}
|
|
function onCompositionEnd(e) {
|
|
const target = e.target;
|
|
if (target.composing) {
|
|
target.composing = false;
|
|
trigger$1(target, 'input');
|
|
}
|
|
}
|
|
function trigger$1(el, type) {
|
|
const e = document.createEvent('HTMLEvents');
|
|
e.initEvent(type, true, true);
|
|
el.dispatchEvent(e);
|
|
}
|
|
// We are exporting the v-model runtime directly as vnode hooks so that it can
|
|
// be tree-shaken in case v-model is never used.
|
|
const vModelText = {
|
|
created(el, { modifiers: { lazy, trim, number } }, vnode) {
|
|
el._assign = getModelAssigner(vnode);
|
|
const castToNumber = number || el.type === 'number';
|
|
addEventListener(el, lazy ? 'change' : 'input', e => {
|
|
if (e.target.composing)
|
|
return;
|
|
let domValue = el.value;
|
|
if (trim) {
|
|
domValue = domValue.trim();
|
|
}
|
|
else if (castToNumber) {
|
|
domValue = toNumber(domValue);
|
|
}
|
|
el._assign(domValue);
|
|
});
|
|
if (trim) {
|
|
addEventListener(el, 'change', () => {
|
|
el.value = el.value.trim();
|
|
});
|
|
}
|
|
if (!lazy) {
|
|
addEventListener(el, 'compositionstart', onCompositionStart);
|
|
addEventListener(el, 'compositionend', onCompositionEnd);
|
|
// Safari < 10.2 & UIWebView doesn't fire compositionend when
|
|
// switching focus before confirming composition choice
|
|
// this also fixes the issue where some browsers e.g. iOS Chrome
|
|
// fires "change" instead of "input" on autocomplete.
|
|
addEventListener(el, 'change', onCompositionEnd);
|
|
}
|
|
},
|
|
// set value on mounted so it's after min/max for type="range"
|
|
mounted(el, { value }) {
|
|
el.value = value == null ? '' : value;
|
|
},
|
|
beforeUpdate(el, { value, modifiers: { trim, number } }, vnode) {
|
|
el._assign = getModelAssigner(vnode);
|
|
// avoid clearing unresolved text. #2302
|
|
if (el.composing)
|
|
return;
|
|
if (document.activeElement === el) {
|
|
if (trim && el.value.trim() === value) {
|
|
return;
|
|
}
|
|
if ((number || el.type === 'number') && toNumber(el.value) === value) {
|
|
return;
|
|
}
|
|
}
|
|
const newValue = value == null ? '' : value;
|
|
if (el.value !== newValue) {
|
|
el.value = newValue;
|
|
}
|
|
}
|
|
};
|
|
const vModelCheckbox = {
|
|
created(el, binding, vnode) {
|
|
setChecked(el, binding, vnode);
|
|
el._assign = getModelAssigner(vnode);
|
|
addEventListener(el, 'change', () => {
|
|
const modelValue = el._modelValue;
|
|
const elementValue = getValue(el);
|
|
const checked = el.checked;
|
|
const assign = el._assign;
|
|
if (isArray(modelValue)) {
|
|
const index = looseIndexOf(modelValue, elementValue);
|
|
const found = index !== -1;
|
|
if (checked && !found) {
|
|
assign(modelValue.concat(elementValue));
|
|
}
|
|
else if (!checked && found) {
|
|
const filtered = [...modelValue];
|
|
filtered.splice(index, 1);
|
|
assign(filtered);
|
|
}
|
|
}
|
|
else if (isSet(modelValue)) {
|
|
if (checked) {
|
|
modelValue.add(elementValue);
|
|
}
|
|
else {
|
|
modelValue.delete(elementValue);
|
|
}
|
|
}
|
|
else {
|
|
assign(getCheckboxValue(el, checked));
|
|
}
|
|
});
|
|
},
|
|
beforeUpdate(el, binding, vnode) {
|
|
el._assign = getModelAssigner(vnode);
|
|
setChecked(el, binding, vnode);
|
|
}
|
|
};
|
|
function setChecked(el, { value, oldValue }, vnode) {
|
|
el._modelValue = value;
|
|
if (isArray(value)) {
|
|
el.checked = looseIndexOf(value, vnode.props.value) > -1;
|
|
}
|
|
else if (isSet(value)) {
|
|
el.checked = value.has(vnode.props.value);
|
|
}
|
|
else if (value !== oldValue) {
|
|
el.checked = looseEqual(value, getCheckboxValue(el, true));
|
|
}
|
|
}
|
|
const vModelRadio = {
|
|
created(el, { value }, vnode) {
|
|
el.checked = looseEqual(value, vnode.props.value);
|
|
el._assign = getModelAssigner(vnode);
|
|
addEventListener(el, 'change', () => {
|
|
el._assign(getValue(el));
|
|
});
|
|
},
|
|
beforeUpdate(el, { value, oldValue }, vnode) {
|
|
el._assign = getModelAssigner(vnode);
|
|
if (value !== oldValue) {
|
|
el.checked = looseEqual(value, vnode.props.value);
|
|
}
|
|
}
|
|
};
|
|
const vModelSelect = {
|
|
created(el, { modifiers: { number } }, vnode) {
|
|
addEventListener(el, 'change', () => {
|
|
const selectedVal = Array.prototype.filter
|
|
.call(el.options, (o) => o.selected)
|
|
.map((o) => number ? toNumber(getValue(o)) : getValue(o));
|
|
el._assign(el.multiple ? selectedVal : selectedVal[0]);
|
|
});
|
|
el._assign = getModelAssigner(vnode);
|
|
},
|
|
// set value in mounted & updated because <select> relies on its children
|
|
// <option>s.
|
|
mounted(el, { value }) {
|
|
setSelected(el, value);
|
|
},
|
|
beforeUpdate(el, _binding, vnode) {
|
|
el._assign = getModelAssigner(vnode);
|
|
},
|
|
updated(el, { value }) {
|
|
setSelected(el, value);
|
|
}
|
|
};
|
|
function setSelected(el, value) {
|
|
const isMultiple = el.multiple;
|
|
if (isMultiple && !isArray(value) && !isSet(value)) {
|
|
|
|
warn(`<select multiple v-model> expects an Array or Set value for its binding, ` +
|
|
`but got ${Object.prototype.toString.call(value).slice(8, -1)}.`);
|
|
return;
|
|
}
|
|
for (let i = 0, l = el.options.length; i < l; i++) {
|
|
const option = el.options[i];
|
|
const optionValue = getValue(option);
|
|
if (isMultiple) {
|
|
if (isArray(value)) {
|
|
option.selected = looseIndexOf(value, optionValue) > -1;
|
|
}
|
|
else {
|
|
option.selected = value.has(optionValue);
|
|
}
|
|
}
|
|
else {
|
|
if (looseEqual(getValue(option), value)) {
|
|
el.selectedIndex = i;
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
if (!isMultiple) {
|
|
el.selectedIndex = -1;
|
|
}
|
|
}
|
|
// retrieve raw value set via :value bindings
|
|
function getValue(el) {
|
|
return '_value' in el ? el._value : el.value;
|
|
}
|
|
// retrieve raw value for true-value and false-value set via :true-value or :false-value bindings
|
|
function getCheckboxValue(el, checked) {
|
|
const key = checked ? '_trueValue' : '_falseValue';
|
|
return key in el ? el[key] : checked;
|
|
}
|
|
const vModelDynamic = {
|
|
created(el, binding, vnode) {
|
|
callModelHook(el, binding, vnode, null, 'created');
|
|
},
|
|
mounted(el, binding, vnode) {
|
|
callModelHook(el, binding, vnode, null, 'mounted');
|
|
},
|
|
beforeUpdate(el, binding, vnode, prevVNode) {
|
|
callModelHook(el, binding, vnode, prevVNode, 'beforeUpdate');
|
|
},
|
|
updated(el, binding, vnode, prevVNode) {
|
|
callModelHook(el, binding, vnode, prevVNode, 'updated');
|
|
}
|
|
};
|
|
function callModelHook(el, binding, vnode, prevVNode, hook) {
|
|
let modelToUse;
|
|
switch (el.tagName) {
|
|
case 'SELECT':
|
|
modelToUse = vModelSelect;
|
|
break;
|
|
case 'TEXTAREA':
|
|
modelToUse = vModelText;
|
|
break;
|
|
default:
|
|
switch (vnode.props && vnode.props.type) {
|
|
case 'checkbox':
|
|
modelToUse = vModelCheckbox;
|
|
break;
|
|
case 'radio':
|
|
modelToUse = vModelRadio;
|
|
break;
|
|
default:
|
|
modelToUse = vModelText;
|
|
}
|
|
}
|
|
const fn = modelToUse[hook];
|
|
fn && fn(el, binding, vnode, prevVNode);
|
|
}
|
|
|
|
const systemModifiers = ['ctrl', 'shift', 'alt', 'meta'];
|
|
const modifierGuards = {
|
|
stop: e => e.stopPropagation(),
|
|
prevent: e => e.preventDefault(),
|
|
self: e => e.target !== e.currentTarget,
|
|
ctrl: e => !e.ctrlKey,
|
|
shift: e => !e.shiftKey,
|
|
alt: e => !e.altKey,
|
|
meta: e => !e.metaKey,
|
|
left: e => 'button' in e && e.button !== 0,
|
|
middle: e => 'button' in e && e.button !== 1,
|
|
right: e => 'button' in e && e.button !== 2,
|
|
exact: (e, modifiers) => systemModifiers.some(m => e[`${m}Key`] && !modifiers.includes(m))
|
|
};
|
|
/**
|
|
* @private
|
|
*/
|
|
const withModifiers = (fn, modifiers) => {
|
|
return (event, ...args) => {
|
|
for (let i = 0; i < modifiers.length; i++) {
|
|
const guard = modifierGuards[modifiers[i]];
|
|
if (guard && guard(event, modifiers))
|
|
return;
|
|
}
|
|
return fn(event, ...args);
|
|
};
|
|
};
|
|
// Kept for 2.x compat.
|
|
// Note: IE11 compat for `spacebar` and `del` is removed for now.
|
|
const keyNames = {
|
|
esc: 'escape',
|
|
space: ' ',
|
|
up: 'arrow-up',
|
|
left: 'arrow-left',
|
|
right: 'arrow-right',
|
|
down: 'arrow-down',
|
|
delete: 'backspace'
|
|
};
|
|
/**
|
|
* @private
|
|
*/
|
|
const withKeys = (fn, modifiers) => {
|
|
return (event) => {
|
|
if (!('key' in event))
|
|
return;
|
|
const eventKey = hyphenate(event.key);
|
|
if (
|
|
// None of the provided key modifiers match the current event key
|
|
!modifiers.some(k => k === eventKey || keyNames[k] === eventKey)) {
|
|
return;
|
|
}
|
|
return fn(event);
|
|
};
|
|
};
|
|
|
|
const vShow = {
|
|
beforeMount(el, { value }, { transition }) {
|
|
el._vod = el.style.display === 'none' ? '' : el.style.display;
|
|
if (transition && value) {
|
|
transition.beforeEnter(el);
|
|
}
|
|
else {
|
|
setDisplay(el, value);
|
|
}
|
|
},
|
|
mounted(el, { value }, { transition }) {
|
|
if (transition && value) {
|
|
transition.enter(el);
|
|
}
|
|
},
|
|
updated(el, { value, oldValue }, { transition }) {
|
|
if (!value === !oldValue)
|
|
return;
|
|
if (transition) {
|
|
if (value) {
|
|
transition.beforeEnter(el);
|
|
setDisplay(el, true);
|
|
transition.enter(el);
|
|
}
|
|
else {
|
|
transition.leave(el, () => {
|
|
setDisplay(el, false);
|
|
});
|
|
}
|
|
}
|
|
else {
|
|
setDisplay(el, value);
|
|
}
|
|
},
|
|
beforeUnmount(el, { value }) {
|
|
setDisplay(el, value);
|
|
}
|
|
};
|
|
function setDisplay(el, value) {
|
|
el.style.display = value ? el._vod : 'none';
|
|
}
|
|
|
|
const rendererOptions = extend({ patchProp, forcePatchProp }, nodeOps);
|
|
// lazy create the renderer - this makes core renderer logic tree-shakable
|
|
// in case the user only imports reactivity utilities from Vue.
|
|
let renderer;
|
|
let enabledHydration = false;
|
|
function ensureRenderer() {
|
|
return renderer || (renderer = createRenderer(rendererOptions));
|
|
}
|
|
function ensureHydrationRenderer() {
|
|
renderer = enabledHydration
|
|
? renderer
|
|
: createHydrationRenderer(rendererOptions);
|
|
enabledHydration = true;
|
|
return renderer;
|
|
}
|
|
// use explicit type casts here to avoid import() calls in rolled-up d.ts
|
|
const render = ((...args) => {
|
|
ensureRenderer().render(...args);
|
|
});
|
|
const hydrate = ((...args) => {
|
|
ensureHydrationRenderer().hydrate(...args);
|
|
});
|
|
const createApp = ((...args) => {
|
|
const app = ensureRenderer().createApp(...args);
|
|
{
|
|
injectNativeTagCheck(app);
|
|
}
|
|
const { mount } = app;
|
|
app.mount = (containerOrSelector) => {
|
|
const container = normalizeContainer(containerOrSelector);
|
|
if (!container)
|
|
return;
|
|
const component = app._component;
|
|
if (!isFunction(component) && !component.render && !component.template) {
|
|
component.template = container.innerHTML;
|
|
}
|
|
// clear content before mounting
|
|
container.innerHTML = '';
|
|
const proxy = mount(container);
|
|
container.removeAttribute('v-cloak');
|
|
container.setAttribute('data-v-app', '');
|
|
return proxy;
|
|
};
|
|
return app;
|
|
});
|
|
const createSSRApp = ((...args) => {
|
|
const app = ensureHydrationRenderer().createApp(...args);
|
|
{
|
|
injectNativeTagCheck(app);
|
|
}
|
|
const { mount } = app;
|
|
app.mount = (containerOrSelector) => {
|
|
const container = normalizeContainer(containerOrSelector);
|
|
if (container) {
|
|
return mount(container, true);
|
|
}
|
|
};
|
|
return app;
|
|
});
|
|
function injectNativeTagCheck(app) {
|
|
// Inject `isNativeTag`
|
|
// this is used for component name validation (dev only)
|
|
Object.defineProperty(app.config, 'isNativeTag', {
|
|
value: (tag) => isHTMLTag(tag) || isSVGTag(tag),
|
|
writable: false
|
|
});
|
|
}
|
|
function normalizeContainer(container) {
|
|
if (isString(container)) {
|
|
const res = document.querySelector(container);
|
|
if ( !res) {
|
|
warn(`Failed to mount app: mount target selector returned null.`);
|
|
}
|
|
return res;
|
|
}
|
|
return container;
|
|
}
|
|
|
|
function initDev() {
|
|
const target = getGlobalThis();
|
|
target.__VUE__ = true;
|
|
setDevtoolsHook(target.__VUE_DEVTOOLS_GLOBAL_HOOK__);
|
|
{
|
|
console.info(`You are running a development build of Vue.\n` +
|
|
`Make sure to use the production build (*.prod.js) when deploying for production.`);
|
|
initCustomFormatter();
|
|
}
|
|
}
|
|
|
|
function defaultOnError(error) {
|
|
throw error;
|
|
}
|
|
function createCompilerError(code, loc, messages, additionalMessage) {
|
|
const msg = (messages || errorMessages)[code] + (additionalMessage || ``)
|
|
;
|
|
const error = new SyntaxError(String(msg));
|
|
error.code = code;
|
|
error.loc = loc;
|
|
return error;
|
|
}
|
|
const errorMessages = {
|
|
// parse errors
|
|
[0 /* ABRUPT_CLOSING_OF_EMPTY_COMMENT */]: 'Illegal comment.',
|
|
[1 /* CDATA_IN_HTML_CONTENT */]: 'CDATA section is allowed only in XML context.',
|
|
[2 /* DUPLICATE_ATTRIBUTE */]: 'Duplicate attribute.',
|
|
[3 /* END_TAG_WITH_ATTRIBUTES */]: 'End tag cannot have attributes.',
|
|
[4 /* END_TAG_WITH_TRAILING_SOLIDUS */]: "Illegal '/' in tags.",
|
|
[5 /* EOF_BEFORE_TAG_NAME */]: 'Unexpected EOF in tag.',
|
|
[6 /* EOF_IN_CDATA */]: 'Unexpected EOF in CDATA section.',
|
|
[7 /* EOF_IN_COMMENT */]: 'Unexpected EOF in comment.',
|
|
[8 /* EOF_IN_SCRIPT_HTML_COMMENT_LIKE_TEXT */]: 'Unexpected EOF in script.',
|
|
[9 /* EOF_IN_TAG */]: 'Unexpected EOF in tag.',
|
|
[10 /* INCORRECTLY_CLOSED_COMMENT */]: 'Incorrectly closed comment.',
|
|
[11 /* INCORRECTLY_OPENED_COMMENT */]: 'Incorrectly opened comment.',
|
|
[12 /* INVALID_FIRST_CHARACTER_OF_TAG_NAME */]: "Illegal tag name. Use '<' to print '<'.",
|
|
[13 /* MISSING_ATTRIBUTE_VALUE */]: 'Attribute value was expected.',
|
|
[14 /* MISSING_END_TAG_NAME */]: 'End tag name was expected.',
|
|
[15 /* MISSING_WHITESPACE_BETWEEN_ATTRIBUTES */]: 'Whitespace was expected.',
|
|
[16 /* NESTED_COMMENT */]: "Unexpected '<!--' in comment.",
|
|
[17 /* UNEXPECTED_CHARACTER_IN_ATTRIBUTE_NAME */]: 'Attribute name cannot contain U+0022 ("), U+0027 (\'), and U+003C (<).',
|
|
[18 /* UNEXPECTED_CHARACTER_IN_UNQUOTED_ATTRIBUTE_VALUE */]: 'Unquoted attribute value cannot contain U+0022 ("), U+0027 (\'), U+003C (<), U+003D (=), and U+0060 (`).',
|
|
[19 /* UNEXPECTED_EQUALS_SIGN_BEFORE_ATTRIBUTE_NAME */]: "Attribute name cannot start with '='.",
|
|
[21 /* UNEXPECTED_QUESTION_MARK_INSTEAD_OF_TAG_NAME */]: "'<?' is allowed only in XML context.",
|
|
[22 /* UNEXPECTED_SOLIDUS_IN_TAG */]: "Illegal '/' in tags.",
|
|
// Vue-specific parse errors
|
|
[23 /* X_INVALID_END_TAG */]: 'Invalid end tag.',
|
|
[24 /* X_MISSING_END_TAG */]: 'Element is missing end tag.',
|
|
[25 /* X_MISSING_INTERPOLATION_END */]: 'Interpolation end sign was not found.',
|
|
[26 /* X_MISSING_DYNAMIC_DIRECTIVE_ARGUMENT_END */]: 'End bracket for dynamic directive argument was not found. ' +
|
|
'Note that dynamic directive argument cannot contain spaces.',
|
|
// transform errors
|
|
[27 /* X_V_IF_NO_EXPRESSION */]: `v-if/v-else-if is missing expression.`,
|
|
[28 /* X_V_IF_SAME_KEY */]: `v-if/else branches must use unique keys.`,
|
|
[29 /* X_V_ELSE_NO_ADJACENT_IF */]: `v-else/v-else-if has no adjacent v-if.`,
|
|
[30 /* X_V_FOR_NO_EXPRESSION */]: `v-for is missing expression.`,
|
|
[31 /* X_V_FOR_MALFORMED_EXPRESSION */]: `v-for has invalid expression.`,
|
|
[32 /* X_V_FOR_TEMPLATE_KEY_PLACEMENT */]: `<template v-for> key should be placed on the <template> tag.`,
|
|
[33 /* X_V_BIND_NO_EXPRESSION */]: `v-bind is missing expression.`,
|
|
[34 /* X_V_ON_NO_EXPRESSION */]: `v-on is missing expression.`,
|
|
[35 /* X_V_SLOT_UNEXPECTED_DIRECTIVE_ON_SLOT_OUTLET */]: `Unexpected custom directive on <slot> outlet.`,
|
|
[36 /* X_V_SLOT_MIXED_SLOT_USAGE */]: `Mixed v-slot usage on both the component and nested <template>.` +
|
|
`When there are multiple named slots, all slots should use <template> ` +
|
|
`syntax to avoid scope ambiguity.`,
|
|
[37 /* X_V_SLOT_DUPLICATE_SLOT_NAMES */]: `Duplicate slot names found. `,
|
|
[38 /* X_V_SLOT_EXTRANEOUS_DEFAULT_SLOT_CHILDREN */]: `Extraneous children found when component already has explicitly named ` +
|
|
`default slot. These children will be ignored.`,
|
|
[39 /* X_V_SLOT_MISPLACED */]: `v-slot can only be used on components or <template> tags.`,
|
|
[40 /* X_V_MODEL_NO_EXPRESSION */]: `v-model is missing expression.`,
|
|
[41 /* X_V_MODEL_MALFORMED_EXPRESSION */]: `v-model value must be a valid JavaScript member expression.`,
|
|
[42 /* X_V_MODEL_ON_SCOPE_VARIABLE */]: `v-model cannot be used on v-for or v-slot scope variables because they are not writable.`,
|
|
[43 /* X_INVALID_EXPRESSION */]: `Error parsing JavaScript expression: `,
|
|
[44 /* X_KEEP_ALIVE_INVALID_CHILDREN */]: `<KeepAlive> expects exactly one child component.`,
|
|
// generic errors
|
|
[45 /* X_PREFIX_ID_NOT_SUPPORTED */]: `"prefixIdentifiers" option is not supported in this build of compiler.`,
|
|
[46 /* X_MODULE_MODE_NOT_SUPPORTED */]: `ES module mode is not supported in this build of compiler.`,
|
|
[47 /* X_CACHE_HANDLER_NOT_SUPPORTED */]: `"cacheHandlers" option is only supported when the "prefixIdentifiers" option is enabled.`,
|
|
[48 /* X_SCOPE_ID_NOT_SUPPORTED */]: `"scopeId" option is only supported in module mode.`
|
|
};
|
|
|
|
const FRAGMENT = Symbol( `Fragment` );
|
|
const TELEPORT = Symbol( `Teleport` );
|
|
const SUSPENSE = Symbol( `Suspense` );
|
|
const KEEP_ALIVE = Symbol( `KeepAlive` );
|
|
const BASE_TRANSITION = Symbol( `BaseTransition` );
|
|
const OPEN_BLOCK = Symbol( `openBlock` );
|
|
const CREATE_BLOCK = Symbol( `createBlock` );
|
|
const CREATE_VNODE = Symbol( `createVNode` );
|
|
const CREATE_COMMENT = Symbol( `createCommentVNode` );
|
|
const CREATE_TEXT = Symbol( `createTextVNode` );
|
|
const CREATE_STATIC = Symbol( `createStaticVNode` );
|
|
const RESOLVE_COMPONENT = Symbol( `resolveComponent` );
|
|
const RESOLVE_DYNAMIC_COMPONENT = Symbol( `resolveDynamicComponent` );
|
|
const RESOLVE_DIRECTIVE = Symbol( `resolveDirective` );
|
|
const WITH_DIRECTIVES = Symbol( `withDirectives` );
|
|
const RENDER_LIST = Symbol( `renderList` );
|
|
const RENDER_SLOT = Symbol( `renderSlot` );
|
|
const CREATE_SLOTS = Symbol( `createSlots` );
|
|
const TO_DISPLAY_STRING = Symbol( `toDisplayString` );
|
|
const MERGE_PROPS = Symbol( `mergeProps` );
|
|
const TO_HANDLERS = Symbol( `toHandlers` );
|
|
const CAMELIZE = Symbol( `camelize` );
|
|
const CAPITALIZE = Symbol( `capitalize` );
|
|
const TO_HANDLER_KEY = Symbol( `toHandlerKey` );
|
|
const SET_BLOCK_TRACKING = Symbol( `setBlockTracking` );
|
|
const PUSH_SCOPE_ID = Symbol( `pushScopeId` );
|
|
const POP_SCOPE_ID = Symbol( `popScopeId` );
|
|
const WITH_SCOPE_ID = Symbol( `withScopeId` );
|
|
const WITH_CTX = Symbol( `withCtx` );
|
|
// Name mapping for runtime helpers that need to be imported from 'vue' in
|
|
// generated code. Make sure these are correctly exported in the runtime!
|
|
// Using `any` here because TS doesn't allow symbols as index type.
|
|
const helperNameMap = {
|
|
[FRAGMENT]: `Fragment`,
|
|
[TELEPORT]: `Teleport`,
|
|
[SUSPENSE]: `Suspense`,
|
|
[KEEP_ALIVE]: `KeepAlive`,
|
|
[BASE_TRANSITION]: `BaseTransition`,
|
|
[OPEN_BLOCK]: `openBlock`,
|
|
[CREATE_BLOCK]: `createBlock`,
|
|
[CREATE_VNODE]: `createVNode`,
|
|
[CREATE_COMMENT]: `createCommentVNode`,
|
|
[CREATE_TEXT]: `createTextVNode`,
|
|
[CREATE_STATIC]: `createStaticVNode`,
|
|
[RESOLVE_COMPONENT]: `resolveComponent`,
|
|
[RESOLVE_DYNAMIC_COMPONENT]: `resolveDynamicComponent`,
|
|
[RESOLVE_DIRECTIVE]: `resolveDirective`,
|
|
[WITH_DIRECTIVES]: `withDirectives`,
|
|
[RENDER_LIST]: `renderList`,
|
|
[RENDER_SLOT]: `renderSlot`,
|
|
[CREATE_SLOTS]: `createSlots`,
|
|
[TO_DISPLAY_STRING]: `toDisplayString`,
|
|
[MERGE_PROPS]: `mergeProps`,
|
|
[TO_HANDLERS]: `toHandlers`,
|
|
[CAMELIZE]: `camelize`,
|
|
[CAPITALIZE]: `capitalize`,
|
|
[TO_HANDLER_KEY]: `toHandlerKey`,
|
|
[SET_BLOCK_TRACKING]: `setBlockTracking`,
|
|
[PUSH_SCOPE_ID]: `pushScopeId`,
|
|
[POP_SCOPE_ID]: `popScopeId`,
|
|
[WITH_SCOPE_ID]: `withScopeId`,
|
|
[WITH_CTX]: `withCtx`
|
|
};
|
|
function registerRuntimeHelpers(helpers) {
|
|
Object.getOwnPropertySymbols(helpers).forEach(s => {
|
|
helperNameMap[s] = helpers[s];
|
|
});
|
|
}
|
|
|
|
// AST Utilities ---------------------------------------------------------------
|
|
// Some expressions, e.g. sequence and conditional expressions, are never
|
|
// associated with template nodes, so their source locations are just a stub.
|
|
// Container types like CompoundExpression also don't need a real location.
|
|
const locStub = {
|
|
source: '',
|
|
start: { line: 1, column: 1, offset: 0 },
|
|
end: { line: 1, column: 1, offset: 0 }
|
|
};
|
|
function createRoot(children, loc = locStub) {
|
|
return {
|
|
type: 0 /* ROOT */,
|
|
children,
|
|
helpers: [],
|
|
components: [],
|
|
directives: [],
|
|
hoists: [],
|
|
imports: [],
|
|
cached: 0,
|
|
temps: 0,
|
|
codegenNode: undefined,
|
|
loc
|
|
};
|
|
}
|
|
function createVNodeCall(context, tag, props, children, patchFlag, dynamicProps, directives, isBlock = false, disableTracking = false, loc = locStub) {
|
|
if (context) {
|
|
if (isBlock) {
|
|
context.helper(OPEN_BLOCK);
|
|
context.helper(CREATE_BLOCK);
|
|
}
|
|
else {
|
|
context.helper(CREATE_VNODE);
|
|
}
|
|
if (directives) {
|
|
context.helper(WITH_DIRECTIVES);
|
|
}
|
|
}
|
|
return {
|
|
type: 13 /* VNODE_CALL */,
|
|
tag,
|
|
props,
|
|
children,
|
|
patchFlag,
|
|
dynamicProps,
|
|
directives,
|
|
isBlock,
|
|
disableTracking,
|
|
loc
|
|
};
|
|
}
|
|
function createArrayExpression(elements, loc = locStub) {
|
|
return {
|
|
type: 17 /* JS_ARRAY_EXPRESSION */,
|
|
loc,
|
|
elements
|
|
};
|
|
}
|
|
function createObjectExpression(properties, loc = locStub) {
|
|
return {
|
|
type: 15 /* JS_OBJECT_EXPRESSION */,
|
|
loc,
|
|
properties
|
|
};
|
|
}
|
|
function createObjectProperty(key, value) {
|
|
return {
|
|
type: 16 /* JS_PROPERTY */,
|
|
loc: locStub,
|
|
key: isString(key) ? createSimpleExpression(key, true) : key,
|
|
value
|
|
};
|
|
}
|
|
function createSimpleExpression(content, isStatic, loc = locStub, isConstant = false) {
|
|
return {
|
|
type: 4 /* SIMPLE_EXPRESSION */,
|
|
loc,
|
|
isConstant,
|
|
content,
|
|
isStatic
|
|
};
|
|
}
|
|
function createCompoundExpression(children, loc = locStub) {
|
|
return {
|
|
type: 8 /* COMPOUND_EXPRESSION */,
|
|
loc,
|
|
children
|
|
};
|
|
}
|
|
function createCallExpression(callee, args = [], loc = locStub) {
|
|
return {
|
|
type: 14 /* JS_CALL_EXPRESSION */,
|
|
loc,
|
|
callee,
|
|
arguments: args
|
|
};
|
|
}
|
|
function createFunctionExpression(params, returns = undefined, newline = false, isSlot = false, loc = locStub) {
|
|
return {
|
|
type: 18 /* JS_FUNCTION_EXPRESSION */,
|
|
params,
|
|
returns,
|
|
newline,
|
|
isSlot,
|
|
loc
|
|
};
|
|
}
|
|
function createConditionalExpression(test, consequent, alternate, newline = true) {
|
|
return {
|
|
type: 19 /* JS_CONDITIONAL_EXPRESSION */,
|
|
test,
|
|
consequent,
|
|
alternate,
|
|
newline,
|
|
loc: locStub
|
|
};
|
|
}
|
|
function createCacheExpression(index, value, isVNode = false) {
|
|
return {
|
|
type: 20 /* JS_CACHE_EXPRESSION */,
|
|
index,
|
|
value,
|
|
isVNode,
|
|
loc: locStub
|
|
};
|
|
}
|
|
|
|
const isStaticExp = (p) => p.type === 4 /* SIMPLE_EXPRESSION */ && p.isStatic;
|
|
const isBuiltInType = (tag, expected) => tag === expected || tag === hyphenate(expected);
|
|
function isCoreComponent(tag) {
|
|
if (isBuiltInType(tag, 'Teleport')) {
|
|
return TELEPORT;
|
|
}
|
|
else if (isBuiltInType(tag, 'Suspense')) {
|
|
return SUSPENSE;
|
|
}
|
|
else if (isBuiltInType(tag, 'KeepAlive')) {
|
|
return KEEP_ALIVE;
|
|
}
|
|
else if (isBuiltInType(tag, 'BaseTransition')) {
|
|
return BASE_TRANSITION;
|
|
}
|
|
}
|
|
const nonIdentifierRE = /^\d|[^\$\w]/;
|
|
const isSimpleIdentifier = (name) => !nonIdentifierRE.test(name);
|
|
const memberExpRE = /^[A-Za-z_$][\w$]*(?:\s*\.\s*[A-Za-z_$][\w$]*|\[[^\]]+\])*$/;
|
|
const isMemberExpression = (path) => {
|
|
if (!path)
|
|
return false;
|
|
return memberExpRE.test(path.trim());
|
|
};
|
|
function getInnerRange(loc, offset, length) {
|
|
const source = loc.source.substr(offset, length);
|
|
const newLoc = {
|
|
source,
|
|
start: advancePositionWithClone(loc.start, loc.source, offset),
|
|
end: loc.end
|
|
};
|
|
if (length != null) {
|
|
newLoc.end = advancePositionWithClone(loc.start, loc.source, offset + length);
|
|
}
|
|
return newLoc;
|
|
}
|
|
function advancePositionWithClone(pos, source, numberOfCharacters = source.length) {
|
|
return advancePositionWithMutation(extend({}, pos), source, numberOfCharacters);
|
|
}
|
|
// advance by mutation without cloning (for performance reasons), since this
|
|
// gets called a lot in the parser
|
|
function advancePositionWithMutation(pos, source, numberOfCharacters = source.length) {
|
|
let linesCount = 0;
|
|
let lastNewLinePos = -1;
|
|
for (let i = 0; i < numberOfCharacters; i++) {
|
|
if (source.charCodeAt(i) === 10 /* newline char code */) {
|
|
linesCount++;
|
|
lastNewLinePos = i;
|
|
}
|
|
}
|
|
pos.offset += numberOfCharacters;
|
|
pos.line += linesCount;
|
|
pos.column =
|
|
lastNewLinePos === -1
|
|
? pos.column + numberOfCharacters
|
|
: numberOfCharacters - lastNewLinePos;
|
|
return pos;
|
|
}
|
|
function assert(condition, msg) {
|
|
/* istanbul ignore if */
|
|
if (!condition) {
|
|
throw new Error(msg || `unexpected compiler condition`);
|
|
}
|
|
}
|
|
function findDir(node, name, allowEmpty = false) {
|
|
for (let i = 0; i < node.props.length; i++) {
|
|
const p = node.props[i];
|
|
if (p.type === 7 /* DIRECTIVE */ &&
|
|
(allowEmpty || p.exp) &&
|
|
(isString(name) ? p.name === name : name.test(p.name))) {
|
|
return p;
|
|
}
|
|
}
|
|
}
|
|
function findProp(node, name, dynamicOnly = false, allowEmpty = false) {
|
|
for (let i = 0; i < node.props.length; i++) {
|
|
const p = node.props[i];
|
|
if (p.type === 6 /* ATTRIBUTE */) {
|
|
if (dynamicOnly)
|
|
continue;
|
|
if (p.name === name && (p.value || allowEmpty)) {
|
|
return p;
|
|
}
|
|
}
|
|
else if (p.name === 'bind' &&
|
|
(p.exp || allowEmpty) &&
|
|
isBindKey(p.arg, name)) {
|
|
return p;
|
|
}
|
|
}
|
|
}
|
|
function isBindKey(arg, name) {
|
|
return !!(arg && isStaticExp(arg) && arg.content === name);
|
|
}
|
|
function hasDynamicKeyVBind(node) {
|
|
return node.props.some(p => p.type === 7 /* DIRECTIVE */ &&
|
|
p.name === 'bind' &&
|
|
(!p.arg || // v-bind="obj"
|
|
p.arg.type !== 4 /* SIMPLE_EXPRESSION */ || // v-bind:[_ctx.foo]
|
|
!p.arg.isStatic) // v-bind:[foo]
|
|
);
|
|
}
|
|
function isText(node) {
|
|
return node.type === 5 /* INTERPOLATION */ || node.type === 2 /* TEXT */;
|
|
}
|
|
function isVSlot(p) {
|
|
return p.type === 7 /* DIRECTIVE */ && p.name === 'slot';
|
|
}
|
|
function isTemplateNode(node) {
|
|
return (node.type === 1 /* ELEMENT */ && node.tagType === 3 /* TEMPLATE */);
|
|
}
|
|
function isSlotOutlet(node) {
|
|
return node.type === 1 /* ELEMENT */ && node.tagType === 2 /* SLOT */;
|
|
}
|
|
function injectProp(node, prop, context) {
|
|
let propsWithInjection;
|
|
const props = node.type === 13 /* VNODE_CALL */ ? node.props : node.arguments[2];
|
|
if (props == null || isString(props)) {
|
|
propsWithInjection = createObjectExpression([prop]);
|
|
}
|
|
else if (props.type === 14 /* JS_CALL_EXPRESSION */) {
|
|
// merged props... add ours
|
|
// only inject key to object literal if it's the first argument so that
|
|
// if doesn't override user provided keys
|
|
const first = props.arguments[0];
|
|
if (!isString(first) && first.type === 15 /* JS_OBJECT_EXPRESSION */) {
|
|
first.properties.unshift(prop);
|
|
}
|
|
else {
|
|
if (props.callee === TO_HANDLERS) {
|
|
// #2366
|
|
propsWithInjection = createCallExpression(context.helper(MERGE_PROPS), [
|
|
createObjectExpression([prop]),
|
|
props
|
|
]);
|
|
}
|
|
else {
|
|
props.arguments.unshift(createObjectExpression([prop]));
|
|
}
|
|
}
|
|
!propsWithInjection && (propsWithInjection = props);
|
|
}
|
|
else if (props.type === 15 /* JS_OBJECT_EXPRESSION */) {
|
|
let alreadyExists = false;
|
|
// check existing key to avoid overriding user provided keys
|
|
if (prop.key.type === 4 /* SIMPLE_EXPRESSION */) {
|
|
const propKeyName = prop.key.content;
|
|
alreadyExists = props.properties.some(p => p.key.type === 4 /* SIMPLE_EXPRESSION */ &&
|
|
p.key.content === propKeyName);
|
|
}
|
|
if (!alreadyExists) {
|
|
props.properties.unshift(prop);
|
|
}
|
|
propsWithInjection = props;
|
|
}
|
|
else {
|
|
// single v-bind with expression, return a merged replacement
|
|
propsWithInjection = createCallExpression(context.helper(MERGE_PROPS), [
|
|
createObjectExpression([prop]),
|
|
props
|
|
]);
|
|
}
|
|
if (node.type === 13 /* VNODE_CALL */) {
|
|
node.props = propsWithInjection;
|
|
}
|
|
else {
|
|
node.arguments[2] = propsWithInjection;
|
|
}
|
|
}
|
|
function toValidAssetId(name, type) {
|
|
return `_${type}_${name.replace(/[^\w]/g, '_')}`;
|
|
}
|
|
|
|
// The default decoder only provides escapes for characters reserved as part of
|
|
// the template syntax, and is only used if the custom renderer did not provide
|
|
// a platform-specific decoder.
|
|
const decodeRE = /&(gt|lt|amp|apos|quot);/g;
|
|
const decodeMap = {
|
|
gt: '>',
|
|
lt: '<',
|
|
amp: '&',
|
|
apos: "'",
|
|
quot: '"'
|
|
};
|
|
const defaultParserOptions = {
|
|
delimiters: [`{{`, `}}`],
|
|
getNamespace: () => 0 /* HTML */,
|
|
getTextMode: () => 0 /* DATA */,
|
|
isVoidTag: NO,
|
|
isPreTag: NO,
|
|
isCustomElement: NO,
|
|
decodeEntities: (rawText) => rawText.replace(decodeRE, (_, p1) => decodeMap[p1]),
|
|
onError: defaultOnError,
|
|
comments: false
|
|
};
|
|
function baseParse(content, options = {}) {
|
|
const context = createParserContext(content, options);
|
|
const start = getCursor(context);
|
|
return createRoot(parseChildren(context, 0 /* DATA */, []), getSelection(context, start));
|
|
}
|
|
function createParserContext(content, rawOptions) {
|
|
const options = extend({}, defaultParserOptions);
|
|
for (const key in rawOptions) {
|
|
// @ts-ignore
|
|
options[key] = rawOptions[key] || defaultParserOptions[key];
|
|
}
|
|
return {
|
|
options,
|
|
column: 1,
|
|
line: 1,
|
|
offset: 0,
|
|
originalSource: content,
|
|
source: content,
|
|
inPre: false,
|
|
inVPre: false
|
|
};
|
|
}
|
|
function parseChildren(context, mode, ancestors) {
|
|
const parent = last(ancestors);
|
|
const ns = parent ? parent.ns : 0 /* HTML */;
|
|
const nodes = [];
|
|
while (!isEnd(context, mode, ancestors)) {
|
|
const s = context.source;
|
|
let node = undefined;
|
|
if (mode === 0 /* DATA */ || mode === 1 /* RCDATA */) {
|
|
if (!context.inVPre && startsWith(s, context.options.delimiters[0])) {
|
|
// '{{'
|
|
node = parseInterpolation(context, mode);
|
|
}
|
|
else if (mode === 0 /* DATA */ && s[0] === '<') {
|
|
// https://html.spec.whatwg.org/multipage/parsing.html#tag-open-state
|
|
if (s.length === 1) {
|
|
emitError(context, 5 /* EOF_BEFORE_TAG_NAME */, 1);
|
|
}
|
|
else if (s[1] === '!') {
|
|
// https://html.spec.whatwg.org/multipage/parsing.html#markup-declaration-open-state
|
|
if (startsWith(s, '<!--')) {
|
|
node = parseComment(context);
|
|
}
|
|
else if (startsWith(s, '<!DOCTYPE')) {
|
|
// Ignore DOCTYPE by a limitation.
|
|
node = parseBogusComment(context);
|
|
}
|
|
else if (startsWith(s, '<![CDATA[')) {
|
|
if (ns !== 0 /* HTML */) {
|
|
node = parseCDATA(context, ancestors);
|
|
}
|
|
else {
|
|
emitError(context, 1 /* CDATA_IN_HTML_CONTENT */);
|
|
node = parseBogusComment(context);
|
|
}
|
|
}
|
|
else {
|
|
emitError(context, 11 /* INCORRECTLY_OPENED_COMMENT */);
|
|
node = parseBogusComment(context);
|
|
}
|
|
}
|
|
else if (s[1] === '/') {
|
|
// https://html.spec.whatwg.org/multipage/parsing.html#end-tag-open-state
|
|
if (s.length === 2) {
|
|
emitError(context, 5 /* EOF_BEFORE_TAG_NAME */, 2);
|
|
}
|
|
else if (s[2] === '>') {
|
|
emitError(context, 14 /* MISSING_END_TAG_NAME */, 2);
|
|
advanceBy(context, 3);
|
|
continue;
|
|
}
|
|
else if (/[a-z]/i.test(s[2])) {
|
|
emitError(context, 23 /* X_INVALID_END_TAG */);
|
|
parseTag(context, 1 /* End */, parent);
|
|
continue;
|
|
}
|
|
else {
|
|
emitError(context, 12 /* INVALID_FIRST_CHARACTER_OF_TAG_NAME */, 2);
|
|
node = parseBogusComment(context);
|
|
}
|
|
}
|
|
else if (/[a-z]/i.test(s[1])) {
|
|
node = parseElement(context, ancestors);
|
|
}
|
|
else if (s[1] === '?') {
|
|
emitError(context, 21 /* UNEXPECTED_QUESTION_MARK_INSTEAD_OF_TAG_NAME */, 1);
|
|
node = parseBogusComment(context);
|
|
}
|
|
else {
|
|
emitError(context, 12 /* INVALID_FIRST_CHARACTER_OF_TAG_NAME */, 1);
|
|
}
|
|
}
|
|
}
|
|
if (!node) {
|
|
node = parseText(context, mode);
|
|
}
|
|
if (isArray(node)) {
|
|
for (let i = 0; i < node.length; i++) {
|
|
pushNode(nodes, node[i]);
|
|
}
|
|
}
|
|
else {
|
|
pushNode(nodes, node);
|
|
}
|
|
}
|
|
// Whitespace management for more efficient output
|
|
// (same as v2 whitespace: 'condense')
|
|
let removedWhitespace = false;
|
|
if (mode !== 2 /* RAWTEXT */) {
|
|
for (let i = 0; i < nodes.length; i++) {
|
|
const node = nodes[i];
|
|
if (!context.inPre && node.type === 2 /* TEXT */) {
|
|
if (!/[^\t\r\n\f ]/.test(node.content)) {
|
|
const prev = nodes[i - 1];
|
|
const next = nodes[i + 1];
|
|
// If:
|
|
// - the whitespace is the first or last node, or:
|
|
// - the whitespace is adjacent to a comment, or:
|
|
// - the whitespace is between two elements AND contains newline
|
|
// Then the whitespace is ignored.
|
|
if (!prev ||
|
|
!next ||
|
|
prev.type === 3 /* COMMENT */ ||
|
|
next.type === 3 /* COMMENT */ ||
|
|
(prev.type === 1 /* ELEMENT */ &&
|
|
next.type === 1 /* ELEMENT */ &&
|
|
/[\r\n]/.test(node.content))) {
|
|
removedWhitespace = true;
|
|
nodes[i] = null;
|
|
}
|
|
else {
|
|
// Otherwise, condensed consecutive whitespace inside the text
|
|
// down to a single space
|
|
node.content = ' ';
|
|
}
|
|
}
|
|
else {
|
|
node.content = node.content.replace(/[\t\r\n\f ]+/g, ' ');
|
|
}
|
|
}
|
|
}
|
|
if (context.inPre && parent && context.options.isPreTag(parent.tag)) {
|
|
// remove leading newline per html spec
|
|
// https://html.spec.whatwg.org/multipage/grouping-content.html#the-pre-element
|
|
const first = nodes[0];
|
|
if (first && first.type === 2 /* TEXT */) {
|
|
first.content = first.content.replace(/^\r?\n/, '');
|
|
}
|
|
}
|
|
}
|
|
return removedWhitespace ? nodes.filter(Boolean) : nodes;
|
|
}
|
|
function pushNode(nodes, node) {
|
|
if (node.type === 2 /* TEXT */) {
|
|
const prev = last(nodes);
|
|
// Merge if both this and the previous node are text and those are
|
|
// consecutive. This happens for cases like "a < b".
|
|
if (prev &&
|
|
prev.type === 2 /* TEXT */ &&
|
|
prev.loc.end.offset === node.loc.start.offset) {
|
|
prev.content += node.content;
|
|
prev.loc.end = node.loc.end;
|
|
prev.loc.source += node.loc.source;
|
|
return;
|
|
}
|
|
}
|
|
nodes.push(node);
|
|
}
|
|
function parseCDATA(context, ancestors) {
|
|
advanceBy(context, 9);
|
|
const nodes = parseChildren(context, 3 /* CDATA */, ancestors);
|
|
if (context.source.length === 0) {
|
|
emitError(context, 6 /* EOF_IN_CDATA */);
|
|
}
|
|
else {
|
|
advanceBy(context, 3);
|
|
}
|
|
return nodes;
|
|
}
|
|
function parseComment(context) {
|
|
const start = getCursor(context);
|
|
let content;
|
|
// Regular comment.
|
|
const match = /--(\!)?>/.exec(context.source);
|
|
if (!match) {
|
|
content = context.source.slice(4);
|
|
advanceBy(context, context.source.length);
|
|
emitError(context, 7 /* EOF_IN_COMMENT */);
|
|
}
|
|
else {
|
|
if (match.index <= 3) {
|
|
emitError(context, 0 /* ABRUPT_CLOSING_OF_EMPTY_COMMENT */);
|
|
}
|
|
if (match[1]) {
|
|
emitError(context, 10 /* INCORRECTLY_CLOSED_COMMENT */);
|
|
}
|
|
content = context.source.slice(4, match.index);
|
|
// Advancing with reporting nested comments.
|
|
const s = context.source.slice(0, match.index);
|
|
let prevIndex = 1, nestedIndex = 0;
|
|
while ((nestedIndex = s.indexOf('<!--', prevIndex)) !== -1) {
|
|
advanceBy(context, nestedIndex - prevIndex + 1);
|
|
if (nestedIndex + 4 < s.length) {
|
|
emitError(context, 16 /* NESTED_COMMENT */);
|
|
}
|
|
prevIndex = nestedIndex + 1;
|
|
}
|
|
advanceBy(context, match.index + match[0].length - prevIndex + 1);
|
|
}
|
|
return {
|
|
type: 3 /* COMMENT */,
|
|
content,
|
|
loc: getSelection(context, start)
|
|
};
|
|
}
|
|
function parseBogusComment(context) {
|
|
const start = getCursor(context);
|
|
const contentStart = context.source[1] === '?' ? 1 : 2;
|
|
let content;
|
|
const closeIndex = context.source.indexOf('>');
|
|
if (closeIndex === -1) {
|
|
content = context.source.slice(contentStart);
|
|
advanceBy(context, context.source.length);
|
|
}
|
|
else {
|
|
content = context.source.slice(contentStart, closeIndex);
|
|
advanceBy(context, closeIndex + 1);
|
|
}
|
|
return {
|
|
type: 3 /* COMMENT */,
|
|
content,
|
|
loc: getSelection(context, start)
|
|
};
|
|
}
|
|
function parseElement(context, ancestors) {
|
|
// Start tag.
|
|
const wasInPre = context.inPre;
|
|
const wasInVPre = context.inVPre;
|
|
const parent = last(ancestors);
|
|
const element = parseTag(context, 0 /* Start */, parent);
|
|
const isPreBoundary = context.inPre && !wasInPre;
|
|
const isVPreBoundary = context.inVPre && !wasInVPre;
|
|
if (element.isSelfClosing || context.options.isVoidTag(element.tag)) {
|
|
return element;
|
|
}
|
|
// Children.
|
|
ancestors.push(element);
|
|
const mode = context.options.getTextMode(element, parent);
|
|
const children = parseChildren(context, mode, ancestors);
|
|
ancestors.pop();
|
|
element.children = children;
|
|
// End tag.
|
|
if (startsWithEndTagOpen(context.source, element.tag)) {
|
|
parseTag(context, 1 /* End */, parent);
|
|
}
|
|
else {
|
|
emitError(context, 24 /* X_MISSING_END_TAG */, 0, element.loc.start);
|
|
if (context.source.length === 0 && element.tag.toLowerCase() === 'script') {
|
|
const first = children[0];
|
|
if (first && startsWith(first.loc.source, '<!--')) {
|
|
emitError(context, 8 /* EOF_IN_SCRIPT_HTML_COMMENT_LIKE_TEXT */);
|
|
}
|
|
}
|
|
}
|
|
element.loc = getSelection(context, element.loc.start);
|
|
if (isPreBoundary) {
|
|
context.inPre = false;
|
|
}
|
|
if (isVPreBoundary) {
|
|
context.inVPre = false;
|
|
}
|
|
return element;
|
|
}
|
|
const isSpecialTemplateDirective = /*#__PURE__*/ makeMap(`if,else,else-if,for,slot`);
|
|
/**
|
|
* Parse a tag (E.g. `<div id=a>`) with that type (start tag or end tag).
|
|
*/
|
|
function parseTag(context, type, parent) {
|
|
// Tag open.
|
|
const start = getCursor(context);
|
|
const match = /^<\/?([a-z][^\t\r\n\f />]*)/i.exec(context.source);
|
|
const tag = match[1];
|
|
const ns = context.options.getNamespace(tag, parent);
|
|
advanceBy(context, match[0].length);
|
|
advanceSpaces(context);
|
|
// save current state in case we need to re-parse attributes with v-pre
|
|
const cursor = getCursor(context);
|
|
const currentSource = context.source;
|
|
// Attributes.
|
|
let props = parseAttributes(context, type);
|
|
// check <pre> tag
|
|
if (context.options.isPreTag(tag)) {
|
|
context.inPre = true;
|
|
}
|
|
// check v-pre
|
|
if (!context.inVPre &&
|
|
props.some(p => p.type === 7 /* DIRECTIVE */ && p.name === 'pre')) {
|
|
context.inVPre = true;
|
|
// reset context
|
|
extend(context, cursor);
|
|
context.source = currentSource;
|
|
// re-parse attrs and filter out v-pre itself
|
|
props = parseAttributes(context, type).filter(p => p.name !== 'v-pre');
|
|
}
|
|
// Tag close.
|
|
let isSelfClosing = false;
|
|
if (context.source.length === 0) {
|
|
emitError(context, 9 /* EOF_IN_TAG */);
|
|
}
|
|
else {
|
|
isSelfClosing = startsWith(context.source, '/>');
|
|
if (type === 1 /* End */ && isSelfClosing) {
|
|
emitError(context, 4 /* END_TAG_WITH_TRAILING_SOLIDUS */);
|
|
}
|
|
advanceBy(context, isSelfClosing ? 2 : 1);
|
|
}
|
|
let tagType = 0 /* ELEMENT */;
|
|
const options = context.options;
|
|
if (!context.inVPre && !options.isCustomElement(tag)) {
|
|
const hasVIs = props.some(p => p.type === 7 /* DIRECTIVE */ && p.name === 'is');
|
|
if (options.isNativeTag && !hasVIs) {
|
|
if (!options.isNativeTag(tag))
|
|
tagType = 1 /* COMPONENT */;
|
|
}
|
|
else if (hasVIs ||
|
|
isCoreComponent(tag) ||
|
|
(options.isBuiltInComponent && options.isBuiltInComponent(tag)) ||
|
|
/^[A-Z]/.test(tag) ||
|
|
tag === 'component') {
|
|
tagType = 1 /* COMPONENT */;
|
|
}
|
|
if (tag === 'slot') {
|
|
tagType = 2 /* SLOT */;
|
|
}
|
|
else if (tag === 'template' &&
|
|
props.some(p => {
|
|
return (p.type === 7 /* DIRECTIVE */ && isSpecialTemplateDirective(p.name));
|
|
})) {
|
|
tagType = 3 /* TEMPLATE */;
|
|
}
|
|
}
|
|
return {
|
|
type: 1 /* ELEMENT */,
|
|
ns,
|
|
tag,
|
|
tagType,
|
|
props,
|
|
isSelfClosing,
|
|
children: [],
|
|
loc: getSelection(context, start),
|
|
codegenNode: undefined // to be created during transform phase
|
|
};
|
|
}
|
|
function parseAttributes(context, type) {
|
|
const props = [];
|
|
const attributeNames = new Set();
|
|
while (context.source.length > 0 &&
|
|
!startsWith(context.source, '>') &&
|
|
!startsWith(context.source, '/>')) {
|
|
if (startsWith(context.source, '/')) {
|
|
emitError(context, 22 /* UNEXPECTED_SOLIDUS_IN_TAG */);
|
|
advanceBy(context, 1);
|
|
advanceSpaces(context);
|
|
continue;
|
|
}
|
|
if (type === 1 /* End */) {
|
|
emitError(context, 3 /* END_TAG_WITH_ATTRIBUTES */);
|
|
}
|
|
const attr = parseAttribute(context, attributeNames);
|
|
if (type === 0 /* Start */) {
|
|
props.push(attr);
|
|
}
|
|
if (/^[^\t\r\n\f />]/.test(context.source)) {
|
|
emitError(context, 15 /* MISSING_WHITESPACE_BETWEEN_ATTRIBUTES */);
|
|
}
|
|
advanceSpaces(context);
|
|
}
|
|
return props;
|
|
}
|
|
function parseAttribute(context, nameSet) {
|
|
// Name.
|
|
const start = getCursor(context);
|
|
const match = /^[^\t\r\n\f />][^\t\r\n\f />=]*/.exec(context.source);
|
|
const name = match[0];
|
|
if (nameSet.has(name)) {
|
|
emitError(context, 2 /* DUPLICATE_ATTRIBUTE */);
|
|
}
|
|
nameSet.add(name);
|
|
if (name[0] === '=') {
|
|
emitError(context, 19 /* UNEXPECTED_EQUALS_SIGN_BEFORE_ATTRIBUTE_NAME */);
|
|
}
|
|
{
|
|
const pattern = /["'<]/g;
|
|
let m;
|
|
while ((m = pattern.exec(name))) {
|
|
emitError(context, 17 /* UNEXPECTED_CHARACTER_IN_ATTRIBUTE_NAME */, m.index);
|
|
}
|
|
}
|
|
advanceBy(context, name.length);
|
|
// Value
|
|
let value = undefined;
|
|
if (/^[\t\r\n\f ]*=/.test(context.source)) {
|
|
advanceSpaces(context);
|
|
advanceBy(context, 1);
|
|
advanceSpaces(context);
|
|
value = parseAttributeValue(context);
|
|
if (!value) {
|
|
emitError(context, 13 /* MISSING_ATTRIBUTE_VALUE */);
|
|
}
|
|
}
|
|
const loc = getSelection(context, start);
|
|
if (!context.inVPre && /^(v-|:|@|#)/.test(name)) {
|
|
const match = /(?:^v-([a-z0-9-]+))?(?:(?::|^@|^#)(\[[^\]]+\]|[^\.]+))?(.+)?$/i.exec(name);
|
|
const dirName = match[1] ||
|
|
(startsWith(name, ':') ? 'bind' : startsWith(name, '@') ? 'on' : 'slot');
|
|
let arg;
|
|
if (match[2]) {
|
|
const isSlot = dirName === 'slot';
|
|
const startOffset = name.indexOf(match[2]);
|
|
const loc = getSelection(context, getNewPosition(context, start, startOffset), getNewPosition(context, start, startOffset + match[2].length + ((isSlot && match[3]) || '').length));
|
|
let content = match[2];
|
|
let isStatic = true;
|
|
if (content.startsWith('[')) {
|
|
isStatic = false;
|
|
if (!content.endsWith(']')) {
|
|
emitError(context, 26 /* X_MISSING_DYNAMIC_DIRECTIVE_ARGUMENT_END */);
|
|
}
|
|
content = content.substr(1, content.length - 2);
|
|
}
|
|
else if (isSlot) {
|
|
// #1241 special case for v-slot: vuetify relies extensively on slot
|
|
// names containing dots. v-slot doesn't have any modifiers and Vue 2.x
|
|
// supports such usage so we are keeping it consistent with 2.x.
|
|
content += match[3] || '';
|
|
}
|
|
arg = {
|
|
type: 4 /* SIMPLE_EXPRESSION */,
|
|
content,
|
|
isStatic,
|
|
isConstant: isStatic,
|
|
loc
|
|
};
|
|
}
|
|
if (value && value.isQuoted) {
|
|
const valueLoc = value.loc;
|
|
valueLoc.start.offset++;
|
|
valueLoc.start.column++;
|
|
valueLoc.end = advancePositionWithClone(valueLoc.start, value.content);
|
|
valueLoc.source = valueLoc.source.slice(1, -1);
|
|
}
|
|
return {
|
|
type: 7 /* DIRECTIVE */,
|
|
name: dirName,
|
|
exp: value && {
|
|
type: 4 /* SIMPLE_EXPRESSION */,
|
|
content: value.content,
|
|
isStatic: false,
|
|
// Treat as non-constant by default. This can be potentially set to
|
|
// true by `transformExpression` to make it eligible for hoisting.
|
|
isConstant: false,
|
|
loc: value.loc
|
|
},
|
|
arg,
|
|
modifiers: match[3] ? match[3].substr(1).split('.') : [],
|
|
loc
|
|
};
|
|
}
|
|
return {
|
|
type: 6 /* ATTRIBUTE */,
|
|
name,
|
|
value: value && {
|
|
type: 2 /* TEXT */,
|
|
content: value.content,
|
|
loc: value.loc
|
|
},
|
|
loc
|
|
};
|
|
}
|
|
function parseAttributeValue(context) {
|
|
const start = getCursor(context);
|
|
let content;
|
|
const quote = context.source[0];
|
|
const isQuoted = quote === `"` || quote === `'`;
|
|
if (isQuoted) {
|
|
// Quoted value.
|
|
advanceBy(context, 1);
|
|
const endIndex = context.source.indexOf(quote);
|
|
if (endIndex === -1) {
|
|
content = parseTextData(context, context.source.length, 4 /* ATTRIBUTE_VALUE */);
|
|
}
|
|
else {
|
|
content = parseTextData(context, endIndex, 4 /* ATTRIBUTE_VALUE */);
|
|
advanceBy(context, 1);
|
|
}
|
|
}
|
|
else {
|
|
// Unquoted
|
|
const match = /^[^\t\r\n\f >]+/.exec(context.source);
|
|
if (!match) {
|
|
return undefined;
|
|
}
|
|
const unexpectedChars = /["'<=`]/g;
|
|
let m;
|
|
while ((m = unexpectedChars.exec(match[0]))) {
|
|
emitError(context, 18 /* UNEXPECTED_CHARACTER_IN_UNQUOTED_ATTRIBUTE_VALUE */, m.index);
|
|
}
|
|
content = parseTextData(context, match[0].length, 4 /* ATTRIBUTE_VALUE */);
|
|
}
|
|
return { content, isQuoted, loc: getSelection(context, start) };
|
|
}
|
|
function parseInterpolation(context, mode) {
|
|
const [open, close] = context.options.delimiters;
|
|
const closeIndex = context.source.indexOf(close, open.length);
|
|
if (closeIndex === -1) {
|
|
emitError(context, 25 /* X_MISSING_INTERPOLATION_END */);
|
|
return undefined;
|
|
}
|
|
const start = getCursor(context);
|
|
advanceBy(context, open.length);
|
|
const innerStart = getCursor(context);
|
|
const innerEnd = getCursor(context);
|
|
const rawContentLength = closeIndex - open.length;
|
|
const rawContent = context.source.slice(0, rawContentLength);
|
|
const preTrimContent = parseTextData(context, rawContentLength, mode);
|
|
const content = preTrimContent.trim();
|
|
const startOffset = preTrimContent.indexOf(content);
|
|
if (startOffset > 0) {
|
|
advancePositionWithMutation(innerStart, rawContent, startOffset);
|
|
}
|
|
const endOffset = rawContentLength - (preTrimContent.length - content.length - startOffset);
|
|
advancePositionWithMutation(innerEnd, rawContent, endOffset);
|
|
advanceBy(context, close.length);
|
|
return {
|
|
type: 5 /* INTERPOLATION */,
|
|
content: {
|
|
type: 4 /* SIMPLE_EXPRESSION */,
|
|
isStatic: false,
|
|
// Set `isConstant` to false by default and will decide in transformExpression
|
|
isConstant: false,
|
|
content,
|
|
loc: getSelection(context, innerStart, innerEnd)
|
|
},
|
|
loc: getSelection(context, start)
|
|
};
|
|
}
|
|
function parseText(context, mode) {
|
|
const endTokens = ['<', context.options.delimiters[0]];
|
|
if (mode === 3 /* CDATA */) {
|
|
endTokens.push(']]>');
|
|
}
|
|
let endIndex = context.source.length;
|
|
for (let i = 0; i < endTokens.length; i++) {
|
|
const index = context.source.indexOf(endTokens[i], 1);
|
|
if (index !== -1 && endIndex > index) {
|
|
endIndex = index;
|
|
}
|
|
}
|
|
const start = getCursor(context);
|
|
const content = parseTextData(context, endIndex, mode);
|
|
return {
|
|
type: 2 /* TEXT */,
|
|
content,
|
|
loc: getSelection(context, start)
|
|
};
|
|
}
|
|
/**
|
|
* Get text data with a given length from the current location.
|
|
* This translates HTML entities in the text data.
|
|
*/
|
|
function parseTextData(context, length, mode) {
|
|
const rawText = context.source.slice(0, length);
|
|
advanceBy(context, length);
|
|
if (mode === 2 /* RAWTEXT */ ||
|
|
mode === 3 /* CDATA */ ||
|
|
rawText.indexOf('&') === -1) {
|
|
return rawText;
|
|
}
|
|
else {
|
|
// DATA or RCDATA containing "&"". Entity decoding required.
|
|
return context.options.decodeEntities(rawText, mode === 4 /* ATTRIBUTE_VALUE */);
|
|
}
|
|
}
|
|
function getCursor(context) {
|
|
const { column, line, offset } = context;
|
|
return { column, line, offset };
|
|
}
|
|
function getSelection(context, start, end) {
|
|
end = end || getCursor(context);
|
|
return {
|
|
start,
|
|
end,
|
|
source: context.originalSource.slice(start.offset, end.offset)
|
|
};
|
|
}
|
|
function last(xs) {
|
|
return xs[xs.length - 1];
|
|
}
|
|
function startsWith(source, searchString) {
|
|
return source.startsWith(searchString);
|
|
}
|
|
function advanceBy(context, numberOfCharacters) {
|
|
const { source } = context;
|
|
advancePositionWithMutation(context, source, numberOfCharacters);
|
|
context.source = source.slice(numberOfCharacters);
|
|
}
|
|
function advanceSpaces(context) {
|
|
const match = /^[\t\r\n\f ]+/.exec(context.source);
|
|
if (match) {
|
|
advanceBy(context, match[0].length);
|
|
}
|
|
}
|
|
function getNewPosition(context, start, numberOfCharacters) {
|
|
return advancePositionWithClone(start, context.originalSource.slice(start.offset, numberOfCharacters), numberOfCharacters);
|
|
}
|
|
function emitError(context, code, offset, loc = getCursor(context)) {
|
|
if (offset) {
|
|
loc.offset += offset;
|
|
loc.column += offset;
|
|
}
|
|
context.options.onError(createCompilerError(code, {
|
|
start: loc,
|
|
end: loc,
|
|
source: ''
|
|
}));
|
|
}
|
|
function isEnd(context, mode, ancestors) {
|
|
const s = context.source;
|
|
switch (mode) {
|
|
case 0 /* DATA */:
|
|
if (startsWith(s, '</')) {
|
|
//TODO: probably bad performance
|
|
for (let i = ancestors.length - 1; i >= 0; --i) {
|
|
if (startsWithEndTagOpen(s, ancestors[i].tag)) {
|
|
return true;
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
case 1 /* RCDATA */:
|
|
case 2 /* RAWTEXT */: {
|
|
const parent = last(ancestors);
|
|
if (parent && startsWithEndTagOpen(s, parent.tag)) {
|
|
return true;
|
|
}
|
|
break;
|
|
}
|
|
case 3 /* CDATA */:
|
|
if (startsWith(s, ']]>')) {
|
|
return true;
|
|
}
|
|
break;
|
|
}
|
|
return !s;
|
|
}
|
|
function startsWithEndTagOpen(source, tag) {
|
|
return (startsWith(source, '</') &&
|
|
source.substr(2, tag.length).toLowerCase() === tag.toLowerCase() &&
|
|
/[\t\r\n\f />]/.test(source[2 + tag.length] || '>'));
|
|
}
|
|
|
|
function hoistStatic(root, context) {
|
|
walk(root, context, new Map(),
|
|
// Root node is unfortunately non-hoistable due to potential parent
|
|
// fallthrough attributes.
|
|
isSingleElementRoot(root, root.children[0]));
|
|
}
|
|
function isSingleElementRoot(root, child) {
|
|
const { children } = root;
|
|
return (children.length === 1 &&
|
|
child.type === 1 /* ELEMENT */ &&
|
|
!isSlotOutlet(child));
|
|
}
|
|
function walk(node, context, resultCache, doNotHoistNode = false) {
|
|
let hasHoistedNode = false;
|
|
// Some transforms, e.g. transformAssetUrls from @vue/compiler-sfc, replaces
|
|
// static bindings with expressions. These expressions are guaranteed to be
|
|
// constant so they are still eligible for hoisting, but they are only
|
|
// available at runtime and therefore cannot be evaluated ahead of time.
|
|
// This is only a concern for pre-stringification (via transformHoist by
|
|
// @vue/compiler-dom), but doing it here allows us to perform only one full
|
|
// walk of the AST and allow `stringifyStatic` to stop walking as soon as its
|
|
// stringficiation threshold is met.
|
|
let hasRuntimeConstant = false;
|
|
const { children } = node;
|
|
for (let i = 0; i < children.length; i++) {
|
|
const child = children[i];
|
|
// only plain elements & text calls are eligible for hoisting.
|
|
if (child.type === 1 /* ELEMENT */ &&
|
|
child.tagType === 0 /* ELEMENT */) {
|
|
let staticType;
|
|
if (!doNotHoistNode &&
|
|
(staticType = getStaticType(child, resultCache)) > 0) {
|
|
if (staticType === 2 /* HAS_RUNTIME_CONSTANT */) {
|
|
hasRuntimeConstant = true;
|
|
}
|
|
child.codegenNode.patchFlag =
|
|
-1 /* HOISTED */ + ( ` /* HOISTED */` );
|
|
child.codegenNode = context.hoist(child.codegenNode);
|
|
hasHoistedNode = true;
|
|
continue;
|
|
}
|
|
else {
|
|
// node may contain dynamic children, but its props may be eligible for
|
|
// hoisting.
|
|
const codegenNode = child.codegenNode;
|
|
if (codegenNode.type === 13 /* VNODE_CALL */) {
|
|
const flag = getPatchFlag(codegenNode);
|
|
if ((!flag ||
|
|
flag === 512 /* NEED_PATCH */ ||
|
|
flag === 1 /* TEXT */) &&
|
|
!hasNonHoistableProps(child)) {
|
|
const props = getNodeProps(child);
|
|
if (props) {
|
|
codegenNode.props = context.hoist(props);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
else if (child.type === 12 /* TEXT_CALL */) {
|
|
const staticType = getStaticType(child.content, resultCache);
|
|
if (staticType > 0) {
|
|
if (staticType === 2 /* HAS_RUNTIME_CONSTANT */) {
|
|
hasRuntimeConstant = true;
|
|
}
|
|
child.codegenNode = context.hoist(child.codegenNode);
|
|
hasHoistedNode = true;
|
|
}
|
|
}
|
|
// walk further
|
|
if (child.type === 1 /* ELEMENT */) {
|
|
walk(child, context, resultCache);
|
|
}
|
|
else if (child.type === 11 /* FOR */) {
|
|
// Do not hoist v-for single child because it has to be a block
|
|
walk(child, context, resultCache, child.children.length === 1);
|
|
}
|
|
else if (child.type === 9 /* IF */) {
|
|
for (let i = 0; i < child.branches.length; i++) {
|
|
// Do not hoist v-if single child because it has to be a block
|
|
walk(child.branches[i], context, resultCache, child.branches[i].children.length === 1);
|
|
}
|
|
}
|
|
}
|
|
if (!hasRuntimeConstant && hasHoistedNode && context.transformHoist) {
|
|
context.transformHoist(children, context, node);
|
|
}
|
|
}
|
|
function getStaticType(node, resultCache = new Map()) {
|
|
switch (node.type) {
|
|
case 1 /* ELEMENT */:
|
|
if (node.tagType !== 0 /* ELEMENT */) {
|
|
return 0 /* NOT_STATIC */;
|
|
}
|
|
const cached = resultCache.get(node);
|
|
if (cached !== undefined) {
|
|
return cached;
|
|
}
|
|
const codegenNode = node.codegenNode;
|
|
if (codegenNode.type !== 13 /* VNODE_CALL */) {
|
|
return 0 /* NOT_STATIC */;
|
|
}
|
|
const flag = getPatchFlag(codegenNode);
|
|
if (!flag && !hasNonHoistableProps(node)) {
|
|
// element self is static. check its children.
|
|
let returnType = 1 /* FULL_STATIC */;
|
|
for (let i = 0; i < node.children.length; i++) {
|
|
const childType = getStaticType(node.children[i], resultCache);
|
|
if (childType === 0 /* NOT_STATIC */) {
|
|
resultCache.set(node, 0 /* NOT_STATIC */);
|
|
return 0 /* NOT_STATIC */;
|
|
}
|
|
else if (childType === 2 /* HAS_RUNTIME_CONSTANT */) {
|
|
returnType = 2 /* HAS_RUNTIME_CONSTANT */;
|
|
}
|
|
}
|
|
// check if any of the props contain runtime constants
|
|
if (returnType !== 2 /* HAS_RUNTIME_CONSTANT */) {
|
|
for (let i = 0; i < node.props.length; i++) {
|
|
const p = node.props[i];
|
|
if (p.type === 7 /* DIRECTIVE */ &&
|
|
p.name === 'bind' &&
|
|
p.exp &&
|
|
(p.exp.type === 8 /* COMPOUND_EXPRESSION */ ||
|
|
p.exp.isRuntimeConstant)) {
|
|
returnType = 2 /* HAS_RUNTIME_CONSTANT */;
|
|
}
|
|
}
|
|
}
|
|
// only svg/foreignObject could be block here, however if they are
|
|
// stati then they don't need to be blocks since there will be no
|
|
// nested updates.
|
|
if (codegenNode.isBlock) {
|
|
codegenNode.isBlock = false;
|
|
}
|
|
resultCache.set(node, returnType);
|
|
return returnType;
|
|
}
|
|
else {
|
|
resultCache.set(node, 0 /* NOT_STATIC */);
|
|
return 0 /* NOT_STATIC */;
|
|
}
|
|
case 2 /* TEXT */:
|
|
case 3 /* COMMENT */:
|
|
return 1 /* FULL_STATIC */;
|
|
case 9 /* IF */:
|
|
case 11 /* FOR */:
|
|
case 10 /* IF_BRANCH */:
|
|
return 0 /* NOT_STATIC */;
|
|
case 5 /* INTERPOLATION */:
|
|
case 12 /* TEXT_CALL */:
|
|
return getStaticType(node.content, resultCache);
|
|
case 4 /* SIMPLE_EXPRESSION */:
|
|
return node.isConstant
|
|
? node.isRuntimeConstant
|
|
? 2 /* HAS_RUNTIME_CONSTANT */
|
|
: 1 /* FULL_STATIC */
|
|
: 0 /* NOT_STATIC */;
|
|
case 8 /* COMPOUND_EXPRESSION */:
|
|
let returnType = 1 /* FULL_STATIC */;
|
|
for (let i = 0; i < node.children.length; i++) {
|
|
const child = node.children[i];
|
|
if (isString(child) || isSymbol(child)) {
|
|
continue;
|
|
}
|
|
const childType = getStaticType(child, resultCache);
|
|
if (childType === 0 /* NOT_STATIC */) {
|
|
return 0 /* NOT_STATIC */;
|
|
}
|
|
else if (childType === 2 /* HAS_RUNTIME_CONSTANT */) {
|
|
returnType = 2 /* HAS_RUNTIME_CONSTANT */;
|
|
}
|
|
}
|
|
return returnType;
|
|
default:
|
|
return 0 /* NOT_STATIC */;
|
|
}
|
|
}
|
|
/**
|
|
* Even for a node with no patch flag, it is possible for it to contain
|
|
* non-hoistable expressions that refers to scope variables, e.g. compiler
|
|
* injected keys or cached event handlers. Therefore we need to always check the
|
|
* codegenNode's props to be sure.
|
|
*/
|
|
function hasNonHoistableProps(node) {
|
|
const props = getNodeProps(node);
|
|
if (props && props.type === 15 /* JS_OBJECT_EXPRESSION */) {
|
|
const { properties } = props;
|
|
for (let i = 0; i < properties.length; i++) {
|
|
const { key, value } = properties[i];
|
|
if (key.type !== 4 /* SIMPLE_EXPRESSION */ ||
|
|
!key.isStatic ||
|
|
(value.type !== 4 /* SIMPLE_EXPRESSION */ ||
|
|
(!value.isStatic && !value.isConstant))) {
|
|
return true;
|
|
}
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
function getNodeProps(node) {
|
|
const codegenNode = node.codegenNode;
|
|
if (codegenNode.type === 13 /* VNODE_CALL */) {
|
|
return codegenNode.props;
|
|
}
|
|
}
|
|
function getPatchFlag(node) {
|
|
const flag = node.patchFlag;
|
|
return flag ? parseInt(flag, 10) : undefined;
|
|
}
|
|
|
|
function createTransformContext(root, { prefixIdentifiers = false, hoistStatic = false, cacheHandlers = false, nodeTransforms = [], directiveTransforms = {}, transformHoist = null, isBuiltInComponent = NOOP, isCustomElement = NOOP, expressionPlugins = [], scopeId = null, ssr = false, ssrCssVars = ``, bindingMetadata = {}, onError = defaultOnError }) {
|
|
const context = {
|
|
// options
|
|
prefixIdentifiers,
|
|
hoistStatic,
|
|
cacheHandlers,
|
|
nodeTransforms,
|
|
directiveTransforms,
|
|
transformHoist,
|
|
isBuiltInComponent,
|
|
isCustomElement,
|
|
expressionPlugins,
|
|
scopeId,
|
|
ssr,
|
|
ssrCssVars,
|
|
bindingMetadata,
|
|
onError,
|
|
// state
|
|
root,
|
|
helpers: new Set(),
|
|
components: new Set(),
|
|
directives: new Set(),
|
|
hoists: [],
|
|
imports: new Set(),
|
|
temps: 0,
|
|
cached: 0,
|
|
identifiers: Object.create(null),
|
|
scopes: {
|
|
vFor: 0,
|
|
vSlot: 0,
|
|
vPre: 0,
|
|
vOnce: 0
|
|
},
|
|
parent: null,
|
|
currentNode: root,
|
|
childIndex: 0,
|
|
// methods
|
|
helper(name) {
|
|
context.helpers.add(name);
|
|
return name;
|
|
},
|
|
helperString(name) {
|
|
return `_${helperNameMap[context.helper(name)]}`;
|
|
},
|
|
replaceNode(node) {
|
|
/* istanbul ignore if */
|
|
{
|
|
if (!context.currentNode) {
|
|
throw new Error(`Node being replaced is already removed.`);
|
|
}
|
|
if (!context.parent) {
|
|
throw new Error(`Cannot replace root node.`);
|
|
}
|
|
}
|
|
context.parent.children[context.childIndex] = context.currentNode = node;
|
|
},
|
|
removeNode(node) {
|
|
if ( !context.parent) {
|
|
throw new Error(`Cannot remove root node.`);
|
|
}
|
|
const list = context.parent.children;
|
|
const removalIndex = node
|
|
? list.indexOf(node)
|
|
: context.currentNode
|
|
? context.childIndex
|
|
: -1;
|
|
/* istanbul ignore if */
|
|
if ( removalIndex < 0) {
|
|
throw new Error(`node being removed is not a child of current parent`);
|
|
}
|
|
if (!node || node === context.currentNode) {
|
|
// current node removed
|
|
context.currentNode = null;
|
|
context.onNodeRemoved();
|
|
}
|
|
else {
|
|
// sibling node removed
|
|
if (context.childIndex > removalIndex) {
|
|
context.childIndex--;
|
|
context.onNodeRemoved();
|
|
}
|
|
}
|
|
context.parent.children.splice(removalIndex, 1);
|
|
},
|
|
onNodeRemoved: () => { },
|
|
addIdentifiers(exp) {
|
|
},
|
|
removeIdentifiers(exp) {
|
|
},
|
|
hoist(exp) {
|
|
context.hoists.push(exp);
|
|
const identifier = createSimpleExpression(`_hoisted_${context.hoists.length}`, false, exp.loc, true);
|
|
identifier.hoisted = exp;
|
|
return identifier;
|
|
},
|
|
cache(exp, isVNode = false) {
|
|
return createCacheExpression(++context.cached, exp, isVNode);
|
|
}
|
|
};
|
|
return context;
|
|
}
|
|
function transform(root, options) {
|
|
const context = createTransformContext(root, options);
|
|
traverseNode(root, context);
|
|
if (options.hoistStatic) {
|
|
hoistStatic(root, context);
|
|
}
|
|
if (!options.ssr) {
|
|
createRootCodegen(root, context);
|
|
}
|
|
// finalize meta information
|
|
root.helpers = [...context.helpers];
|
|
root.components = [...context.components];
|
|
root.directives = [...context.directives];
|
|
root.imports = [...context.imports];
|
|
root.hoists = context.hoists;
|
|
root.temps = context.temps;
|
|
root.cached = context.cached;
|
|
}
|
|
function createRootCodegen(root, context) {
|
|
const { helper } = context;
|
|
const { children } = root;
|
|
if (children.length === 1) {
|
|
const child = children[0];
|
|
// if the single child is an element, turn it into a block.
|
|
if (isSingleElementRoot(root, child) && child.codegenNode) {
|
|
// single element root is never hoisted so codegenNode will never be
|
|
// SimpleExpressionNode
|
|
const codegenNode = child.codegenNode;
|
|
if (codegenNode.type === 13 /* VNODE_CALL */) {
|
|
codegenNode.isBlock = true;
|
|
helper(OPEN_BLOCK);
|
|
helper(CREATE_BLOCK);
|
|
}
|
|
root.codegenNode = codegenNode;
|
|
}
|
|
else {
|
|
// - single <slot/>, IfNode, ForNode: already blocks.
|
|
// - single text node: always patched.
|
|
// root codegen falls through via genNode()
|
|
root.codegenNode = child;
|
|
}
|
|
}
|
|
else if (children.length > 1) {
|
|
// root has multiple nodes - return a fragment block.
|
|
root.codegenNode = createVNodeCall(context, helper(FRAGMENT), undefined, root.children, `${64 /* STABLE_FRAGMENT */} /* ${PatchFlagNames[64 /* STABLE_FRAGMENT */]} */`, undefined, undefined, true);
|
|
}
|
|
else ;
|
|
}
|
|
function traverseChildren(parent, context) {
|
|
let i = 0;
|
|
const nodeRemoved = () => {
|
|
i--;
|
|
};
|
|
for (; i < parent.children.length; i++) {
|
|
const child = parent.children[i];
|
|
if (isString(child))
|
|
continue;
|
|
context.parent = parent;
|
|
context.childIndex = i;
|
|
context.onNodeRemoved = nodeRemoved;
|
|
traverseNode(child, context);
|
|
}
|
|
}
|
|
function traverseNode(node, context) {
|
|
context.currentNode = node;
|
|
// apply transform plugins
|
|
const { nodeTransforms } = context;
|
|
const exitFns = [];
|
|
for (let i = 0; i < nodeTransforms.length; i++) {
|
|
const onExit = nodeTransforms[i](node, context);
|
|
if (onExit) {
|
|
if (isArray(onExit)) {
|
|
exitFns.push(...onExit);
|
|
}
|
|
else {
|
|
exitFns.push(onExit);
|
|
}
|
|
}
|
|
if (!context.currentNode) {
|
|
// node was removed
|
|
return;
|
|
}
|
|
else {
|
|
// node may have been replaced
|
|
node = context.currentNode;
|
|
}
|
|
}
|
|
switch (node.type) {
|
|
case 3 /* COMMENT */:
|
|
if (!context.ssr) {
|
|
// inject import for the Comment symbol, which is needed for creating
|
|
// comment nodes with `createVNode`
|
|
context.helper(CREATE_COMMENT);
|
|
}
|
|
break;
|
|
case 5 /* INTERPOLATION */:
|
|
// no need to traverse, but we need to inject toString helper
|
|
if (!context.ssr) {
|
|
context.helper(TO_DISPLAY_STRING);
|
|
}
|
|
break;
|
|
// for container types, further traverse downwards
|
|
case 9 /* IF */:
|
|
for (let i = 0; i < node.branches.length; i++) {
|
|
traverseNode(node.branches[i], context);
|
|
}
|
|
break;
|
|
case 10 /* IF_BRANCH */:
|
|
case 11 /* FOR */:
|
|
case 1 /* ELEMENT */:
|
|
case 0 /* ROOT */:
|
|
traverseChildren(node, context);
|
|
break;
|
|
}
|
|
// exit transforms
|
|
context.currentNode = node;
|
|
let i = exitFns.length;
|
|
while (i--) {
|
|
exitFns[i]();
|
|
}
|
|
}
|
|
function createStructuralDirectiveTransform(name, fn) {
|
|
const matches = isString(name)
|
|
? (n) => n === name
|
|
: (n) => name.test(n);
|
|
return (node, context) => {
|
|
if (node.type === 1 /* ELEMENT */) {
|
|
const { props } = node;
|
|
// structural directive transforms are not concerned with slots
|
|
// as they are handled separately in vSlot.ts
|
|
if (node.tagType === 3 /* TEMPLATE */ && props.some(isVSlot)) {
|
|
return;
|
|
}
|
|
const exitFns = [];
|
|
for (let i = 0; i < props.length; i++) {
|
|
const prop = props[i];
|
|
if (prop.type === 7 /* DIRECTIVE */ && matches(prop.name)) {
|
|
// structural directives are removed to avoid infinite recursion
|
|
// also we remove them *before* applying so that it can further
|
|
// traverse itself in case it moves the node around
|
|
props.splice(i, 1);
|
|
i--;
|
|
const onExit = fn(node, prop, context);
|
|
if (onExit)
|
|
exitFns.push(onExit);
|
|
}
|
|
}
|
|
return exitFns;
|
|
}
|
|
};
|
|
}
|
|
|
|
const PURE_ANNOTATION = `/*#__PURE__*/`;
|
|
function createCodegenContext(ast, { mode = 'function', prefixIdentifiers = mode === 'module', sourceMap = false, filename = `template.vue.html`, scopeId = null, optimizeImports = false, runtimeGlobalName = `Vue`, runtimeModuleName = `vue`, ssr = false }) {
|
|
const context = {
|
|
mode,
|
|
prefixIdentifiers,
|
|
sourceMap,
|
|
filename,
|
|
scopeId,
|
|
optimizeImports,
|
|
runtimeGlobalName,
|
|
runtimeModuleName,
|
|
ssr,
|
|
source: ast.loc.source,
|
|
code: ``,
|
|
column: 1,
|
|
line: 1,
|
|
offset: 0,
|
|
indentLevel: 0,
|
|
pure: false,
|
|
map: undefined,
|
|
helper(key) {
|
|
return `_${helperNameMap[key]}`;
|
|
},
|
|
push(code, node) {
|
|
context.code += code;
|
|
},
|
|
indent() {
|
|
newline(++context.indentLevel);
|
|
},
|
|
deindent(withoutNewLine = false) {
|
|
if (withoutNewLine) {
|
|
--context.indentLevel;
|
|
}
|
|
else {
|
|
newline(--context.indentLevel);
|
|
}
|
|
},
|
|
newline() {
|
|
newline(context.indentLevel);
|
|
}
|
|
};
|
|
function newline(n) {
|
|
context.push('\n' + ` `.repeat(n));
|
|
}
|
|
return context;
|
|
}
|
|
function generate(ast, options = {}) {
|
|
const context = createCodegenContext(ast, options);
|
|
if (options.onContextCreated)
|
|
options.onContextCreated(context);
|
|
const { mode, push, prefixIdentifiers, indent, deindent, newline, scopeId, ssr } = context;
|
|
const hasHelpers = ast.helpers.length > 0;
|
|
const useWithBlock = !prefixIdentifiers && mode !== 'module';
|
|
// preambles
|
|
{
|
|
genFunctionPreamble(ast, context);
|
|
}
|
|
// binding optimizations
|
|
const optimizeSources = options.bindingMetadata
|
|
? `, $props, $setup, $data, $options`
|
|
: ``;
|
|
// enter render function
|
|
if (!ssr) {
|
|
push(`function render(_ctx, _cache${optimizeSources}) {`);
|
|
}
|
|
else {
|
|
push(`function ssrRender(_ctx, _push, _parent, _attrs${optimizeSources}) {`);
|
|
}
|
|
indent();
|
|
if (useWithBlock) {
|
|
push(`with (_ctx) {`);
|
|
indent();
|
|
// function mode const declarations should be inside with block
|
|
// also they should be renamed to avoid collision with user properties
|
|
if (hasHelpers) {
|
|
push(`const { ${ast.helpers
|
|
.map(s => `${helperNameMap[s]}: _${helperNameMap[s]}`)
|
|
.join(', ')} } = _Vue`);
|
|
push(`\n`);
|
|
newline();
|
|
}
|
|
}
|
|
// generate asset resolution statements
|
|
if (ast.components.length) {
|
|
genAssets(ast.components, 'component', context);
|
|
if (ast.directives.length || ast.temps > 0) {
|
|
newline();
|
|
}
|
|
}
|
|
if (ast.directives.length) {
|
|
genAssets(ast.directives, 'directive', context);
|
|
if (ast.temps > 0) {
|
|
newline();
|
|
}
|
|
}
|
|
if (ast.temps > 0) {
|
|
push(`let `);
|
|
for (let i = 0; i < ast.temps; i++) {
|
|
push(`${i > 0 ? `, ` : ``}_temp${i}`);
|
|
}
|
|
}
|
|
if (ast.components.length || ast.directives.length || ast.temps) {
|
|
push(`\n`);
|
|
newline();
|
|
}
|
|
// generate the VNode tree expression
|
|
if (!ssr) {
|
|
push(`return `);
|
|
}
|
|
if (ast.codegenNode) {
|
|
genNode(ast.codegenNode, context);
|
|
}
|
|
else {
|
|
push(`null`);
|
|
}
|
|
if (useWithBlock) {
|
|
deindent();
|
|
push(`}`);
|
|
}
|
|
deindent();
|
|
push(`}`);
|
|
return {
|
|
ast,
|
|
code: context.code,
|
|
// SourceMapGenerator does have toJSON() method but it's not in the types
|
|
map: context.map ? context.map.toJSON() : undefined
|
|
};
|
|
}
|
|
function genFunctionPreamble(ast, context) {
|
|
const { ssr, prefixIdentifiers, push, newline, runtimeModuleName, runtimeGlobalName } = context;
|
|
const VueBinding = runtimeGlobalName;
|
|
const aliasHelper = (s) => `${helperNameMap[s]}: _${helperNameMap[s]}`;
|
|
// Generate const declaration for helpers
|
|
// In prefix mode, we place the const declaration at top so it's done
|
|
// only once; But if we not prefixing, we place the declaration inside the
|
|
// with block so it doesn't incur the `in` check cost for every helper access.
|
|
if (ast.helpers.length > 0) {
|
|
{
|
|
// "with" mode.
|
|
// save Vue in a separate variable to avoid collision
|
|
push(`const _Vue = ${VueBinding}\n`);
|
|
// in "with" mode, helpers are declared inside the with block to avoid
|
|
// has check cost, but hoists are lifted out of the function - we need
|
|
// to provide the helper here.
|
|
if (ast.hoists.length) {
|
|
const staticHelpers = [
|
|
CREATE_VNODE,
|
|
CREATE_COMMENT,
|
|
CREATE_TEXT,
|
|
CREATE_STATIC
|
|
]
|
|
.filter(helper => ast.helpers.includes(helper))
|
|
.map(aliasHelper)
|
|
.join(', ');
|
|
push(`const { ${staticHelpers} } = _Vue\n`);
|
|
}
|
|
}
|
|
}
|
|
genHoists(ast.hoists, context);
|
|
newline();
|
|
push(`return `);
|
|
}
|
|
function genAssets(assets, type, { helper, push, newline }) {
|
|
const resolver = helper(type === 'component' ? RESOLVE_COMPONENT : RESOLVE_DIRECTIVE);
|
|
for (let i = 0; i < assets.length; i++) {
|
|
const id = assets[i];
|
|
push(`const ${toValidAssetId(id, type)} = ${resolver}(${JSON.stringify(id)})`);
|
|
if (i < assets.length - 1) {
|
|
newline();
|
|
}
|
|
}
|
|
}
|
|
function genHoists(hoists, context) {
|
|
if (!hoists.length) {
|
|
return;
|
|
}
|
|
context.pure = true;
|
|
const { push, newline, helper, scopeId, mode } = context;
|
|
newline();
|
|
hoists.forEach((exp, i) => {
|
|
if (exp) {
|
|
push(`const _hoisted_${i + 1} = `);
|
|
genNode(exp, context);
|
|
newline();
|
|
}
|
|
});
|
|
context.pure = false;
|
|
}
|
|
function isText$1(n) {
|
|
return (isString(n) ||
|
|
n.type === 4 /* SIMPLE_EXPRESSION */ ||
|
|
n.type === 2 /* TEXT */ ||
|
|
n.type === 5 /* INTERPOLATION */ ||
|
|
n.type === 8 /* COMPOUND_EXPRESSION */);
|
|
}
|
|
function genNodeListAsArray(nodes, context) {
|
|
const multilines = nodes.length > 3 ||
|
|
( nodes.some(n => isArray(n) || !isText$1(n)));
|
|
context.push(`[`);
|
|
multilines && context.indent();
|
|
genNodeList(nodes, context, multilines);
|
|
multilines && context.deindent();
|
|
context.push(`]`);
|
|
}
|
|
function genNodeList(nodes, context, multilines = false, comma = true) {
|
|
const { push, newline } = context;
|
|
for (let i = 0; i < nodes.length; i++) {
|
|
const node = nodes[i];
|
|
if (isString(node)) {
|
|
push(node);
|
|
}
|
|
else if (isArray(node)) {
|
|
genNodeListAsArray(node, context);
|
|
}
|
|
else {
|
|
genNode(node, context);
|
|
}
|
|
if (i < nodes.length - 1) {
|
|
if (multilines) {
|
|
comma && push(',');
|
|
newline();
|
|
}
|
|
else {
|
|
comma && push(', ');
|
|
}
|
|
}
|
|
}
|
|
}
|
|
function genNode(node, context) {
|
|
if (isString(node)) {
|
|
context.push(node);
|
|
return;
|
|
}
|
|
if (isSymbol(node)) {
|
|
context.push(context.helper(node));
|
|
return;
|
|
}
|
|
switch (node.type) {
|
|
case 1 /* ELEMENT */:
|
|
case 9 /* IF */:
|
|
case 11 /* FOR */:
|
|
|
|
assert(node.codegenNode != null, `Codegen node is missing for element/if/for node. ` +
|
|
`Apply appropriate transforms first.`);
|
|
genNode(node.codegenNode, context);
|
|
break;
|
|
case 2 /* TEXT */:
|
|
genText(node, context);
|
|
break;
|
|
case 4 /* SIMPLE_EXPRESSION */:
|
|
genExpression(node, context);
|
|
break;
|
|
case 5 /* INTERPOLATION */:
|
|
genInterpolation(node, context);
|
|
break;
|
|
case 12 /* TEXT_CALL */:
|
|
genNode(node.codegenNode, context);
|
|
break;
|
|
case 8 /* COMPOUND_EXPRESSION */:
|
|
genCompoundExpression(node, context);
|
|
break;
|
|
case 3 /* COMMENT */:
|
|
genComment(node, context);
|
|
break;
|
|
case 13 /* VNODE_CALL */:
|
|
genVNodeCall(node, context);
|
|
break;
|
|
case 14 /* JS_CALL_EXPRESSION */:
|
|
genCallExpression(node, context);
|
|
break;
|
|
case 15 /* JS_OBJECT_EXPRESSION */:
|
|
genObjectExpression(node, context);
|
|
break;
|
|
case 17 /* JS_ARRAY_EXPRESSION */:
|
|
genArrayExpression(node, context);
|
|
break;
|
|
case 18 /* JS_FUNCTION_EXPRESSION */:
|
|
genFunctionExpression(node, context);
|
|
break;
|
|
case 19 /* JS_CONDITIONAL_EXPRESSION */:
|
|
genConditionalExpression(node, context);
|
|
break;
|
|
case 20 /* JS_CACHE_EXPRESSION */:
|
|
genCacheExpression(node, context);
|
|
break;
|
|
// SSR only types
|
|
case 21 /* JS_BLOCK_STATEMENT */:
|
|
break;
|
|
case 22 /* JS_TEMPLATE_LITERAL */:
|
|
break;
|
|
case 23 /* JS_IF_STATEMENT */:
|
|
break;
|
|
case 24 /* JS_ASSIGNMENT_EXPRESSION */:
|
|
break;
|
|
case 25 /* JS_SEQUENCE_EXPRESSION */:
|
|
break;
|
|
case 26 /* JS_RETURN_STATEMENT */:
|
|
break;
|
|
/* istanbul ignore next */
|
|
case 10 /* IF_BRANCH */:
|
|
// noop
|
|
break;
|
|
default:
|
|
{
|
|
assert(false, `unhandled codegen node type: ${node.type}`);
|
|
// make sure we exhaust all possible types
|
|
const exhaustiveCheck = node;
|
|
return exhaustiveCheck;
|
|
}
|
|
}
|
|
}
|
|
function genText(node, context) {
|
|
context.push(JSON.stringify(node.content), node);
|
|
}
|
|
function genExpression(node, context) {
|
|
const { content, isStatic } = node;
|
|
context.push(isStatic ? JSON.stringify(content) : content, node);
|
|
}
|
|
function genInterpolation(node, context) {
|
|
const { push, helper, pure } = context;
|
|
if (pure)
|
|
push(PURE_ANNOTATION);
|
|
push(`${helper(TO_DISPLAY_STRING)}(`);
|
|
genNode(node.content, context);
|
|
push(`)`);
|
|
}
|
|
function genCompoundExpression(node, context) {
|
|
for (let i = 0; i < node.children.length; i++) {
|
|
const child = node.children[i];
|
|
if (isString(child)) {
|
|
context.push(child);
|
|
}
|
|
else {
|
|
genNode(child, context);
|
|
}
|
|
}
|
|
}
|
|
function genExpressionAsPropertyKey(node, context) {
|
|
const { push } = context;
|
|
if (node.type === 8 /* COMPOUND_EXPRESSION */) {
|
|
push(`[`);
|
|
genCompoundExpression(node, context);
|
|
push(`]`);
|
|
}
|
|
else if (node.isStatic) {
|
|
// only quote keys if necessary
|
|
const text = isSimpleIdentifier(node.content)
|
|
? node.content
|
|
: JSON.stringify(node.content);
|
|
push(text, node);
|
|
}
|
|
else {
|
|
push(`[${node.content}]`, node);
|
|
}
|
|
}
|
|
function genComment(node, context) {
|
|
{
|
|
const { push, helper, pure } = context;
|
|
if (pure) {
|
|
push(PURE_ANNOTATION);
|
|
}
|
|
push(`${helper(CREATE_COMMENT)}(${JSON.stringify(node.content)})`, node);
|
|
}
|
|
}
|
|
function genVNodeCall(node, context) {
|
|
const { push, helper, pure } = context;
|
|
const { tag, props, children, patchFlag, dynamicProps, directives, isBlock, disableTracking } = node;
|
|
if (directives) {
|
|
push(helper(WITH_DIRECTIVES) + `(`);
|
|
}
|
|
if (isBlock) {
|
|
push(`(${helper(OPEN_BLOCK)}(${disableTracking ? `true` : ``}), `);
|
|
}
|
|
if (pure) {
|
|
push(PURE_ANNOTATION);
|
|
}
|
|
push(helper(isBlock ? CREATE_BLOCK : CREATE_VNODE) + `(`, node);
|
|
genNodeList(genNullableArgs([tag, props, children, patchFlag, dynamicProps]), context);
|
|
push(`)`);
|
|
if (isBlock) {
|
|
push(`)`);
|
|
}
|
|
if (directives) {
|
|
push(`, `);
|
|
genNode(directives, context);
|
|
push(`)`);
|
|
}
|
|
}
|
|
function genNullableArgs(args) {
|
|
let i = args.length;
|
|
while (i--) {
|
|
if (args[i] != null)
|
|
break;
|
|
}
|
|
return args.slice(0, i + 1).map(arg => arg || `null`);
|
|
}
|
|
// JavaScript
|
|
function genCallExpression(node, context) {
|
|
const { push, helper, pure } = context;
|
|
const callee = isString(node.callee) ? node.callee : helper(node.callee);
|
|
if (pure) {
|
|
push(PURE_ANNOTATION);
|
|
}
|
|
push(callee + `(`, node);
|
|
genNodeList(node.arguments, context);
|
|
push(`)`);
|
|
}
|
|
function genObjectExpression(node, context) {
|
|
const { push, indent, deindent, newline } = context;
|
|
const { properties } = node;
|
|
if (!properties.length) {
|
|
push(`{}`, node);
|
|
return;
|
|
}
|
|
const multilines = properties.length > 1 ||
|
|
(
|
|
properties.some(p => p.value.type !== 4 /* SIMPLE_EXPRESSION */));
|
|
push(multilines ? `{` : `{ `);
|
|
multilines && indent();
|
|
for (let i = 0; i < properties.length; i++) {
|
|
const { key, value } = properties[i];
|
|
// key
|
|
genExpressionAsPropertyKey(key, context);
|
|
push(`: `);
|
|
// value
|
|
genNode(value, context);
|
|
if (i < properties.length - 1) {
|
|
// will only reach this if it's multilines
|
|
push(`,`);
|
|
newline();
|
|
}
|
|
}
|
|
multilines && deindent();
|
|
push(multilines ? `}` : ` }`);
|
|
}
|
|
function genArrayExpression(node, context) {
|
|
genNodeListAsArray(node.elements, context);
|
|
}
|
|
function genFunctionExpression(node, context) {
|
|
const { push, indent, deindent, scopeId, mode } = context;
|
|
const { params, returns, body, newline, isSlot } = node;
|
|
if (isSlot) {
|
|
push(`_${helperNameMap[WITH_CTX]}(`);
|
|
}
|
|
push(`(`, node);
|
|
if (isArray(params)) {
|
|
genNodeList(params, context);
|
|
}
|
|
else if (params) {
|
|
genNode(params, context);
|
|
}
|
|
push(`) => `);
|
|
if (newline || body) {
|
|
push(`{`);
|
|
indent();
|
|
}
|
|
if (returns) {
|
|
if (newline) {
|
|
push(`return `);
|
|
}
|
|
if (isArray(returns)) {
|
|
genNodeListAsArray(returns, context);
|
|
}
|
|
else {
|
|
genNode(returns, context);
|
|
}
|
|
}
|
|
else if (body) {
|
|
genNode(body, context);
|
|
}
|
|
if (newline || body) {
|
|
deindent();
|
|
push(`}`);
|
|
}
|
|
if ( isSlot) {
|
|
push(`)`);
|
|
}
|
|
}
|
|
function genConditionalExpression(node, context) {
|
|
const { test, consequent, alternate, newline: needNewline } = node;
|
|
const { push, indent, deindent, newline } = context;
|
|
if (test.type === 4 /* SIMPLE_EXPRESSION */) {
|
|
const needsParens = !isSimpleIdentifier(test.content);
|
|
needsParens && push(`(`);
|
|
genExpression(test, context);
|
|
needsParens && push(`)`);
|
|
}
|
|
else {
|
|
push(`(`);
|
|
genNode(test, context);
|
|
push(`)`);
|
|
}
|
|
needNewline && indent();
|
|
context.indentLevel++;
|
|
needNewline || push(` `);
|
|
push(`? `);
|
|
genNode(consequent, context);
|
|
context.indentLevel--;
|
|
needNewline && newline();
|
|
needNewline || push(` `);
|
|
push(`: `);
|
|
const isNested = alternate.type === 19 /* JS_CONDITIONAL_EXPRESSION */;
|
|
if (!isNested) {
|
|
context.indentLevel++;
|
|
}
|
|
genNode(alternate, context);
|
|
if (!isNested) {
|
|
context.indentLevel--;
|
|
}
|
|
needNewline && deindent(true /* without newline */);
|
|
}
|
|
function genCacheExpression(node, context) {
|
|
const { push, helper, indent, deindent, newline } = context;
|
|
push(`_cache[${node.index}] || (`);
|
|
if (node.isVNode) {
|
|
indent();
|
|
push(`${helper(SET_BLOCK_TRACKING)}(-1),`);
|
|
newline();
|
|
}
|
|
push(`_cache[${node.index}] = `);
|
|
genNode(node.value, context);
|
|
if (node.isVNode) {
|
|
push(`,`);
|
|
newline();
|
|
push(`${helper(SET_BLOCK_TRACKING)}(1),`);
|
|
newline();
|
|
push(`_cache[${node.index}]`);
|
|
deindent();
|
|
}
|
|
push(`)`);
|
|
}
|
|
|
|
// 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,typeof,void')
|
|
.split(',')
|
|
.join('\\b|\\b') +
|
|
'\\b');
|
|
// strip strings in expressions
|
|
const stripStringRE = /'(?:[^'\\]|\\.)*'|"(?:[^"\\]|\\.)*"|`(?:[^`\\]|\\.)*\$\{|\}(?:[^`\\]|\\.)*`|`(?:[^`\\]|\\.)*`/g;
|
|
/**
|
|
* Validate a non-prefixed expression.
|
|
* This is only called when using the in-browser runtime compiler since it
|
|
* doesn't prefix expressions.
|
|
*/
|
|
function validateBrowserExpression(node, context, asParams = false, asRawStatements = false) {
|
|
const exp = node.content;
|
|
// empty expressions are validated per-directive since some directives
|
|
// do allow empty expressions.
|
|
if (!exp.trim()) {
|
|
return;
|
|
}
|
|
try {
|
|
new Function(asRawStatements
|
|
? ` ${exp} `
|
|
: `return ${asParams ? `(${exp}) => {}` : `(${exp})`}`);
|
|
}
|
|
catch (e) {
|
|
let message = e.message;
|
|
const keywordMatch = exp
|
|
.replace(stripStringRE, '')
|
|
.match(prohibitedKeywordRE);
|
|
if (keywordMatch) {
|
|
message = `avoid using JavaScript keyword as property name: "${keywordMatch[0]}"`;
|
|
}
|
|
context.onError(createCompilerError(43 /* X_INVALID_EXPRESSION */, node.loc, undefined, message));
|
|
}
|
|
}
|
|
|
|
const transformExpression = (node, context) => {
|
|
if (node.type === 5 /* INTERPOLATION */) {
|
|
node.content = processExpression(node.content, context);
|
|
}
|
|
else if (node.type === 1 /* ELEMENT */) {
|
|
// handle directives on element
|
|
for (let i = 0; i < node.props.length; i++) {
|
|
const dir = node.props[i];
|
|
// do not process for v-on & v-for since they are special handled
|
|
if (dir.type === 7 /* DIRECTIVE */ && dir.name !== 'for') {
|
|
const exp = dir.exp;
|
|
const arg = dir.arg;
|
|
// do not process exp if this is v-on:arg - we need special handling
|
|
// for wrapping inline statements.
|
|
if (exp &&
|
|
exp.type === 4 /* SIMPLE_EXPRESSION */ &&
|
|
!(dir.name === 'on' && arg)) {
|
|
dir.exp = processExpression(exp, context,
|
|
// slot args must be processed as function params
|
|
dir.name === 'slot');
|
|
}
|
|
if (arg && arg.type === 4 /* SIMPLE_EXPRESSION */ && !arg.isStatic) {
|
|
dir.arg = processExpression(arg, context);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
};
|
|
// Important: since this function uses Node.js only dependencies, it should
|
|
// always be used with a leading !true check so that it can be
|
|
// tree-shaken from the browser build.
|
|
function processExpression(node, context,
|
|
// some expressions like v-slot props & v-for aliases should be parsed as
|
|
// function params
|
|
asParams = false,
|
|
// v-on handler values may contain multiple statements
|
|
asRawStatements = false) {
|
|
{
|
|
// simple in-browser validation (same logic in 2.x)
|
|
validateBrowserExpression(node, context, asParams, asRawStatements);
|
|
return node;
|
|
}
|
|
}
|
|
|
|
const transformIf = createStructuralDirectiveTransform(/^(if|else|else-if)$/, (node, dir, context) => {
|
|
return processIf(node, dir, context, (ifNode, branch, isRoot) => {
|
|
// #1587: We need to dynamically increment the key based on the current
|
|
// node's sibling nodes, since chained v-if/else branches are
|
|
// rendered at the same depth
|
|
const siblings = context.parent.children;
|
|
let i = siblings.indexOf(ifNode);
|
|
let key = 0;
|
|
while (i-- >= 0) {
|
|
const sibling = siblings[i];
|
|
if (sibling && sibling.type === 9 /* IF */) {
|
|
key += sibling.branches.length;
|
|
}
|
|
}
|
|
// Exit callback. Complete the codegenNode when all children have been
|
|
// transformed.
|
|
return () => {
|
|
if (isRoot) {
|
|
ifNode.codegenNode = createCodegenNodeForBranch(branch, key, context);
|
|
}
|
|
else {
|
|
// attach this branch's codegen node to the v-if root.
|
|
const parentCondition = getParentCondition(ifNode.codegenNode);
|
|
parentCondition.alternate = createCodegenNodeForBranch(branch, key + ifNode.branches.length - 1, context);
|
|
}
|
|
};
|
|
});
|
|
});
|
|
// target-agnostic transform used for both Client and SSR
|
|
function processIf(node, dir, context, processCodegen) {
|
|
if (dir.name !== 'else' &&
|
|
(!dir.exp || !dir.exp.content.trim())) {
|
|
const loc = dir.exp ? dir.exp.loc : node.loc;
|
|
context.onError(createCompilerError(27 /* X_V_IF_NO_EXPRESSION */, dir.loc));
|
|
dir.exp = createSimpleExpression(`true`, false, loc);
|
|
}
|
|
if ( dir.exp) {
|
|
validateBrowserExpression(dir.exp, context);
|
|
}
|
|
if (dir.name === 'if') {
|
|
const branch = createIfBranch(node, dir);
|
|
const ifNode = {
|
|
type: 9 /* IF */,
|
|
loc: node.loc,
|
|
branches: [branch]
|
|
};
|
|
context.replaceNode(ifNode);
|
|
if (processCodegen) {
|
|
return processCodegen(ifNode, branch, true);
|
|
}
|
|
}
|
|
else {
|
|
// locate the adjacent v-if
|
|
const siblings = context.parent.children;
|
|
const comments = [];
|
|
let i = siblings.indexOf(node);
|
|
while (i-- >= -1) {
|
|
const sibling = siblings[i];
|
|
if ( sibling && sibling.type === 3 /* COMMENT */) {
|
|
context.removeNode(sibling);
|
|
comments.unshift(sibling);
|
|
continue;
|
|
}
|
|
if (sibling &&
|
|
sibling.type === 2 /* TEXT */ &&
|
|
!sibling.content.trim().length) {
|
|
context.removeNode(sibling);
|
|
continue;
|
|
}
|
|
if (sibling && sibling.type === 9 /* IF */) {
|
|
// move the node to the if node's branches
|
|
context.removeNode();
|
|
const branch = createIfBranch(node, dir);
|
|
if ( comments.length) {
|
|
branch.children = [...comments, ...branch.children];
|
|
}
|
|
// check if user is forcing same key on different branches
|
|
{
|
|
const key = branch.userKey;
|
|
if (key) {
|
|
sibling.branches.forEach(({ userKey }) => {
|
|
if (isSameKey(userKey, key)) {
|
|
context.onError(createCompilerError(28 /* X_V_IF_SAME_KEY */, branch.userKey.loc));
|
|
}
|
|
});
|
|
}
|
|
}
|
|
sibling.branches.push(branch);
|
|
const onExit = processCodegen && processCodegen(sibling, branch, false);
|
|
// since the branch was removed, it will not be traversed.
|
|
// make sure to traverse here.
|
|
traverseNode(branch, context);
|
|
// call on exit
|
|
if (onExit)
|
|
onExit();
|
|
// make sure to reset currentNode after traversal to indicate this
|
|
// node has been removed.
|
|
context.currentNode = null;
|
|
}
|
|
else {
|
|
context.onError(createCompilerError(29 /* X_V_ELSE_NO_ADJACENT_IF */, node.loc));
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
function createIfBranch(node, dir) {
|
|
return {
|
|
type: 10 /* IF_BRANCH */,
|
|
loc: node.loc,
|
|
condition: dir.name === 'else' ? undefined : dir.exp,
|
|
children: node.tagType === 3 /* TEMPLATE */ && !findDir(node, 'for')
|
|
? node.children
|
|
: [node],
|
|
userKey: findProp(node, `key`)
|
|
};
|
|
}
|
|
function createCodegenNodeForBranch(branch, keyIndex, context) {
|
|
if (branch.condition) {
|
|
return createConditionalExpression(branch.condition, createChildrenCodegenNode(branch, keyIndex, context),
|
|
// make sure to pass in asBlock: true so that the comment node call
|
|
// closes the current block.
|
|
createCallExpression(context.helper(CREATE_COMMENT), [
|
|
'"v-if"' ,
|
|
'true'
|
|
]));
|
|
}
|
|
else {
|
|
return createChildrenCodegenNode(branch, keyIndex, context);
|
|
}
|
|
}
|
|
function createChildrenCodegenNode(branch, keyIndex, context) {
|
|
const { helper } = context;
|
|
const keyProperty = createObjectProperty(`key`, createSimpleExpression(`${keyIndex}`, false, locStub, true));
|
|
const { children } = branch;
|
|
const firstChild = children[0];
|
|
const needFragmentWrapper = children.length !== 1 || firstChild.type !== 1 /* ELEMENT */;
|
|
if (needFragmentWrapper) {
|
|
if (children.length === 1 && firstChild.type === 11 /* FOR */) {
|
|
// optimize away nested fragments when child is a ForNode
|
|
const vnodeCall = firstChild.codegenNode;
|
|
injectProp(vnodeCall, keyProperty, context);
|
|
return vnodeCall;
|
|
}
|
|
else {
|
|
return createVNodeCall(context, helper(FRAGMENT), createObjectExpression([keyProperty]), children, `${64 /* STABLE_FRAGMENT */} /* ${PatchFlagNames[64 /* STABLE_FRAGMENT */]} */`, undefined, undefined, true, false, branch.loc);
|
|
}
|
|
}
|
|
else {
|
|
const vnodeCall = firstChild
|
|
.codegenNode;
|
|
// Change createVNode to createBlock.
|
|
if (vnodeCall.type === 13 /* VNODE_CALL */) {
|
|
vnodeCall.isBlock = true;
|
|
helper(OPEN_BLOCK);
|
|
helper(CREATE_BLOCK);
|
|
}
|
|
// inject branch key
|
|
injectProp(vnodeCall, keyProperty, context);
|
|
return vnodeCall;
|
|
}
|
|
}
|
|
function isSameKey(a, b) {
|
|
if (!a || a.type !== b.type) {
|
|
return false;
|
|
}
|
|
if (a.type === 6 /* ATTRIBUTE */) {
|
|
if (a.value.content !== b.value.content) {
|
|
return false;
|
|
}
|
|
}
|
|
else {
|
|
// directive
|
|
const exp = a.exp;
|
|
const branchExp = b.exp;
|
|
if (exp.type !== branchExp.type) {
|
|
return false;
|
|
}
|
|
if (exp.type !== 4 /* SIMPLE_EXPRESSION */ ||
|
|
(exp.isStatic !== branchExp.isStatic ||
|
|
exp.content !== branchExp.content)) {
|
|
return false;
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
function getParentCondition(node) {
|
|
while (true) {
|
|
if (node.type === 19 /* JS_CONDITIONAL_EXPRESSION */) {
|
|
if (node.alternate.type === 19 /* JS_CONDITIONAL_EXPRESSION */) {
|
|
node = node.alternate;
|
|
}
|
|
else {
|
|
return node;
|
|
}
|
|
}
|
|
else if (node.type === 20 /* JS_CACHE_EXPRESSION */) {
|
|
node = node.value;
|
|
}
|
|
}
|
|
}
|
|
|
|
const transformFor = createStructuralDirectiveTransform('for', (node, dir, context) => {
|
|
const { helper } = context;
|
|
return processFor(node, dir, context, forNode => {
|
|
// create the loop render function expression now, and add the
|
|
// iterator on exit after all children have been traversed
|
|
const renderExp = createCallExpression(helper(RENDER_LIST), [
|
|
forNode.source
|
|
]);
|
|
const keyProp = findProp(node, `key`);
|
|
const keyProperty = keyProp
|
|
? createObjectProperty(`key`, keyProp.type === 6 /* ATTRIBUTE */
|
|
? createSimpleExpression(keyProp.value.content, true)
|
|
: keyProp.exp)
|
|
: null;
|
|
const isStableFragment = forNode.source.type === 4 /* SIMPLE_EXPRESSION */ &&
|
|
forNode.source.isConstant;
|
|
const fragmentFlag = isStableFragment
|
|
? 64 /* STABLE_FRAGMENT */
|
|
: keyProp
|
|
? 128 /* KEYED_FRAGMENT */
|
|
: 256 /* UNKEYED_FRAGMENT */;
|
|
forNode.codegenNode = createVNodeCall(context, helper(FRAGMENT), undefined, renderExp, `${fragmentFlag} /* ${PatchFlagNames[fragmentFlag]} */`, undefined, undefined, true /* isBlock */, !isStableFragment /* disableTracking */, node.loc);
|
|
return () => {
|
|
// finish the codegen now that all children have been traversed
|
|
let childBlock;
|
|
const isTemplate = isTemplateNode(node);
|
|
const { children } = forNode;
|
|
// check <template v-for> key placement
|
|
if ( isTemplate) {
|
|
node.children.some(c => {
|
|
if (c.type === 1 /* ELEMENT */) {
|
|
const key = findProp(c, 'key');
|
|
if (key) {
|
|
context.onError(createCompilerError(32 /* X_V_FOR_TEMPLATE_KEY_PLACEMENT */, key.loc));
|
|
return true;
|
|
}
|
|
}
|
|
});
|
|
}
|
|
const needFragmentWrapper = children.length !== 1 || children[0].type !== 1 /* ELEMENT */;
|
|
const slotOutlet = isSlotOutlet(node)
|
|
? node
|
|
: isTemplate &&
|
|
node.children.length === 1 &&
|
|
isSlotOutlet(node.children[0])
|
|
? node.children[0] // api-extractor somehow fails to infer this
|
|
: null;
|
|
if (slotOutlet) {
|
|
// <slot v-for="..."> or <template v-for="..."><slot/></template>
|
|
childBlock = slotOutlet.codegenNode;
|
|
if (isTemplate && keyProperty) {
|
|
// <template v-for="..." :key="..."><slot/></template>
|
|
// we need to inject the key to the renderSlot() call.
|
|
// the props for renderSlot is passed as the 3rd argument.
|
|
injectProp(childBlock, keyProperty, context);
|
|
}
|
|
}
|
|
else if (needFragmentWrapper) {
|
|
// <template v-for="..."> with text or multi-elements
|
|
// should generate a fragment block for each loop
|
|
childBlock = createVNodeCall(context, helper(FRAGMENT), keyProperty ? createObjectExpression([keyProperty]) : undefined, node.children, `${64 /* STABLE_FRAGMENT */} /* ${PatchFlagNames[64 /* STABLE_FRAGMENT */]} */`, undefined, undefined, true);
|
|
}
|
|
else {
|
|
// Normal element v-for. Directly use the child's codegenNode
|
|
// but mark it as a block.
|
|
childBlock = children[0]
|
|
.codegenNode;
|
|
if (isTemplate && keyProperty) {
|
|
injectProp(childBlock, keyProperty, context);
|
|
}
|
|
childBlock.isBlock = !isStableFragment;
|
|
if (childBlock.isBlock) {
|
|
helper(OPEN_BLOCK);
|
|
helper(CREATE_BLOCK);
|
|
}
|
|
}
|
|
renderExp.arguments.push(createFunctionExpression(createForLoopParams(forNode.parseResult), childBlock, true /* force newline */));
|
|
};
|
|
});
|
|
});
|
|
// target-agnostic transform used for both Client and SSR
|
|
function processFor(node, dir, context, processCodegen) {
|
|
if (!dir.exp) {
|
|
context.onError(createCompilerError(30 /* X_V_FOR_NO_EXPRESSION */, dir.loc));
|
|
return;
|
|
}
|
|
const parseResult = parseForExpression(
|
|
// can only be simple expression because vFor transform is applied
|
|
// before expression transform.
|
|
dir.exp, context);
|
|
if (!parseResult) {
|
|
context.onError(createCompilerError(31 /* X_V_FOR_MALFORMED_EXPRESSION */, dir.loc));
|
|
return;
|
|
}
|
|
const { addIdentifiers, removeIdentifiers, scopes } = context;
|
|
const { source, value, key, index } = parseResult;
|
|
const forNode = {
|
|
type: 11 /* FOR */,
|
|
loc: dir.loc,
|
|
source,
|
|
valueAlias: value,
|
|
keyAlias: key,
|
|
objectIndexAlias: index,
|
|
parseResult,
|
|
children: isTemplateNode(node) ? node.children : [node]
|
|
};
|
|
context.replaceNode(forNode);
|
|
// bookkeeping
|
|
scopes.vFor++;
|
|
const onExit = processCodegen && processCodegen(forNode);
|
|
return () => {
|
|
scopes.vFor--;
|
|
if (onExit)
|
|
onExit();
|
|
};
|
|
}
|
|
const forAliasRE = /([\s\S]*?)\s+(?:in|of)\s+([\s\S]*)/;
|
|
// This regex doesn't cover the case if key or index aliases have destructuring,
|
|
// but those do not make sense in the first place, so this works in practice.
|
|
const forIteratorRE = /,([^,\}\]]*)(?:,([^,\}\]]*))?$/;
|
|
const stripParensRE = /^\(|\)$/g;
|
|
function parseForExpression(input, context) {
|
|
const loc = input.loc;
|
|
const exp = input.content;
|
|
const inMatch = exp.match(forAliasRE);
|
|
if (!inMatch)
|
|
return;
|
|
const [, LHS, RHS] = inMatch;
|
|
const result = {
|
|
source: createAliasExpression(loc, RHS.trim(), exp.indexOf(RHS, LHS.length)),
|
|
value: undefined,
|
|
key: undefined,
|
|
index: undefined
|
|
};
|
|
{
|
|
validateBrowserExpression(result.source, context);
|
|
}
|
|
let valueContent = LHS.trim()
|
|
.replace(stripParensRE, '')
|
|
.trim();
|
|
const trimmedOffset = LHS.indexOf(valueContent);
|
|
const iteratorMatch = valueContent.match(forIteratorRE);
|
|
if (iteratorMatch) {
|
|
valueContent = valueContent.replace(forIteratorRE, '').trim();
|
|
const keyContent = iteratorMatch[1].trim();
|
|
let keyOffset;
|
|
if (keyContent) {
|
|
keyOffset = exp.indexOf(keyContent, trimmedOffset + valueContent.length);
|
|
result.key = createAliasExpression(loc, keyContent, keyOffset);
|
|
{
|
|
validateBrowserExpression(result.key, context, true);
|
|
}
|
|
}
|
|
if (iteratorMatch[2]) {
|
|
const indexContent = iteratorMatch[2].trim();
|
|
if (indexContent) {
|
|
result.index = createAliasExpression(loc, indexContent, exp.indexOf(indexContent, result.key
|
|
? keyOffset + keyContent.length
|
|
: trimmedOffset + valueContent.length));
|
|
{
|
|
validateBrowserExpression(result.index, context, true);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
if (valueContent) {
|
|
result.value = createAliasExpression(loc, valueContent, trimmedOffset);
|
|
{
|
|
validateBrowserExpression(result.value, context, true);
|
|
}
|
|
}
|
|
return result;
|
|
}
|
|
function createAliasExpression(range, content, offset) {
|
|
return createSimpleExpression(content, false, getInnerRange(range, offset, content.length));
|
|
}
|
|
function createForLoopParams({ value, key, index }) {
|
|
const params = [];
|
|
if (value) {
|
|
params.push(value);
|
|
}
|
|
if (key) {
|
|
if (!value) {
|
|
params.push(createSimpleExpression(`_`, false));
|
|
}
|
|
params.push(key);
|
|
}
|
|
if (index) {
|
|
if (!key) {
|
|
if (!value) {
|
|
params.push(createSimpleExpression(`_`, false));
|
|
}
|
|
params.push(createSimpleExpression(`__`, false));
|
|
}
|
|
params.push(index);
|
|
}
|
|
return params;
|
|
}
|
|
|
|
const defaultFallback = createSimpleExpression(`undefined`, false);
|
|
// A NodeTransform that:
|
|
// 1. Tracks scope identifiers for scoped slots so that they don't get prefixed
|
|
// by transformExpression. This is only applied in non-browser builds with
|
|
// { prefixIdentifiers: true }.
|
|
// 2. Track v-slot depths so that we know a slot is inside another slot.
|
|
// Note the exit callback is executed before buildSlots() on the same node,
|
|
// so only nested slots see positive numbers.
|
|
const trackSlotScopes = (node, context) => {
|
|
if (node.type === 1 /* ELEMENT */ &&
|
|
(node.tagType === 1 /* COMPONENT */ ||
|
|
node.tagType === 3 /* TEMPLATE */)) {
|
|
// We are only checking non-empty v-slot here
|
|
// since we only care about slots that introduce scope variables.
|
|
const vSlot = findDir(node, 'slot');
|
|
if (vSlot) {
|
|
const slotProps = vSlot.exp;
|
|
context.scopes.vSlot++;
|
|
return () => {
|
|
context.scopes.vSlot--;
|
|
};
|
|
}
|
|
}
|
|
};
|
|
const buildClientSlotFn = (props, children, loc) => createFunctionExpression(props, children, false /* newline */, true /* isSlot */, children.length ? children[0].loc : loc);
|
|
// Instead of being a DirectiveTransform, v-slot processing is called during
|
|
// transformElement to build the slots object for a component.
|
|
function buildSlots(node, context, buildSlotFn = buildClientSlotFn) {
|
|
context.helper(WITH_CTX);
|
|
const { children, loc } = node;
|
|
const slotsProperties = [];
|
|
const dynamicSlots = [];
|
|
const buildDefaultSlotProperty = (props, children) => createObjectProperty(`default`, buildSlotFn(props, children, loc));
|
|
// If the slot is inside a v-for or another v-slot, force it to be dynamic
|
|
// since it likely uses a scope variable.
|
|
let hasDynamicSlots = context.scopes.vSlot > 0 || context.scopes.vFor > 0;
|
|
// 1. Check for slot with slotProps on component itself.
|
|
// <Comp v-slot="{ prop }"/>
|
|
const onComponentSlot = findDir(node, 'slot', true);
|
|
if (onComponentSlot) {
|
|
const { arg, exp } = onComponentSlot;
|
|
if (arg && !isStaticExp(arg)) {
|
|
hasDynamicSlots = true;
|
|
}
|
|
slotsProperties.push(createObjectProperty(arg || createSimpleExpression('default', true), buildSlotFn(exp, children, loc)));
|
|
}
|
|
// 2. Iterate through children and check for template slots
|
|
// <template v-slot:foo="{ prop }">
|
|
let hasTemplateSlots = false;
|
|
let hasNamedDefaultSlot = false;
|
|
const implicitDefaultChildren = [];
|
|
const seenSlotNames = new Set();
|
|
for (let i = 0; i < children.length; i++) {
|
|
const slotElement = children[i];
|
|
let slotDir;
|
|
if (!isTemplateNode(slotElement) ||
|
|
!(slotDir = findDir(slotElement, 'slot', true))) {
|
|
// not a <template v-slot>, skip.
|
|
if (slotElement.type !== 3 /* COMMENT */) {
|
|
implicitDefaultChildren.push(slotElement);
|
|
}
|
|
continue;
|
|
}
|
|
if (onComponentSlot) {
|
|
// already has on-component slot - this is incorrect usage.
|
|
context.onError(createCompilerError(36 /* X_V_SLOT_MIXED_SLOT_USAGE */, slotDir.loc));
|
|
break;
|
|
}
|
|
hasTemplateSlots = true;
|
|
const { children: slotChildren, loc: slotLoc } = slotElement;
|
|
const { arg: slotName = createSimpleExpression(`default`, true), exp: slotProps, loc: dirLoc } = slotDir;
|
|
// check if name is dynamic.
|
|
let staticSlotName;
|
|
if (isStaticExp(slotName)) {
|
|
staticSlotName = slotName ? slotName.content : `default`;
|
|
}
|
|
else {
|
|
hasDynamicSlots = true;
|
|
}
|
|
const slotFunction = buildSlotFn(slotProps, slotChildren, slotLoc);
|
|
// check if this slot is conditional (v-if/v-for)
|
|
let vIf;
|
|
let vElse;
|
|
let vFor;
|
|
if ((vIf = findDir(slotElement, 'if'))) {
|
|
hasDynamicSlots = true;
|
|
dynamicSlots.push(createConditionalExpression(vIf.exp, buildDynamicSlot(slotName, slotFunction), defaultFallback));
|
|
}
|
|
else if ((vElse = findDir(slotElement, /^else(-if)?$/, true /* allowEmpty */))) {
|
|
// find adjacent v-if
|
|
let j = i;
|
|
let prev;
|
|
while (j--) {
|
|
prev = children[j];
|
|
if (prev.type !== 3 /* COMMENT */) {
|
|
break;
|
|
}
|
|
}
|
|
if (prev && isTemplateNode(prev) && findDir(prev, 'if')) {
|
|
// remove node
|
|
children.splice(i, 1);
|
|
i--;
|
|
// attach this slot to previous conditional
|
|
let conditional = dynamicSlots[dynamicSlots.length - 1];
|
|
while (conditional.alternate.type === 19 /* JS_CONDITIONAL_EXPRESSION */) {
|
|
conditional = conditional.alternate;
|
|
}
|
|
conditional.alternate = vElse.exp
|
|
? createConditionalExpression(vElse.exp, buildDynamicSlot(slotName, slotFunction), defaultFallback)
|
|
: buildDynamicSlot(slotName, slotFunction);
|
|
}
|
|
else {
|
|
context.onError(createCompilerError(29 /* X_V_ELSE_NO_ADJACENT_IF */, vElse.loc));
|
|
}
|
|
}
|
|
else if ((vFor = findDir(slotElement, 'for'))) {
|
|
hasDynamicSlots = true;
|
|
const parseResult = vFor.parseResult ||
|
|
parseForExpression(vFor.exp, context);
|
|
if (parseResult) {
|
|
// Render the dynamic slots as an array and add it to the createSlot()
|
|
// args. The runtime knows how to handle it appropriately.
|
|
dynamicSlots.push(createCallExpression(context.helper(RENDER_LIST), [
|
|
parseResult.source,
|
|
createFunctionExpression(createForLoopParams(parseResult), buildDynamicSlot(slotName, slotFunction), true /* force newline */)
|
|
]));
|
|
}
|
|
else {
|
|
context.onError(createCompilerError(31 /* X_V_FOR_MALFORMED_EXPRESSION */, vFor.loc));
|
|
}
|
|
}
|
|
else {
|
|
// check duplicate static names
|
|
if (staticSlotName) {
|
|
if (seenSlotNames.has(staticSlotName)) {
|
|
context.onError(createCompilerError(37 /* X_V_SLOT_DUPLICATE_SLOT_NAMES */, dirLoc));
|
|
continue;
|
|
}
|
|
seenSlotNames.add(staticSlotName);
|
|
if (staticSlotName === 'default') {
|
|
hasNamedDefaultSlot = true;
|
|
}
|
|
}
|
|
slotsProperties.push(createObjectProperty(slotName, slotFunction));
|
|
}
|
|
}
|
|
if (!onComponentSlot) {
|
|
if (!hasTemplateSlots) {
|
|
// implicit default slot (on component)
|
|
slotsProperties.push(buildDefaultSlotProperty(undefined, children));
|
|
}
|
|
else if (implicitDefaultChildren.length) {
|
|
// implicit default slot (mixed with named slots)
|
|
if (hasNamedDefaultSlot) {
|
|
context.onError(createCompilerError(38 /* X_V_SLOT_EXTRANEOUS_DEFAULT_SLOT_CHILDREN */, implicitDefaultChildren[0].loc));
|
|
}
|
|
else {
|
|
slotsProperties.push(buildDefaultSlotProperty(undefined, implicitDefaultChildren));
|
|
}
|
|
}
|
|
}
|
|
const slotFlag = hasDynamicSlots
|
|
? 2 /* DYNAMIC */
|
|
: hasForwardedSlots(node.children)
|
|
? 3 /* FORWARDED */
|
|
: 1 /* STABLE */;
|
|
let slots = createObjectExpression(slotsProperties.concat(createObjectProperty(`_`,
|
|
// 2 = compiled but dynamic = can skip normalization, but must run diff
|
|
// 1 = compiled and static = can skip normalization AND diff as optimized
|
|
createSimpleExpression('' + slotFlag, false))), loc);
|
|
if (dynamicSlots.length) {
|
|
slots = createCallExpression(context.helper(CREATE_SLOTS), [
|
|
slots,
|
|
createArrayExpression(dynamicSlots)
|
|
]);
|
|
}
|
|
return {
|
|
slots,
|
|
hasDynamicSlots
|
|
};
|
|
}
|
|
function buildDynamicSlot(name, fn) {
|
|
return createObjectExpression([
|
|
createObjectProperty(`name`, name),
|
|
createObjectProperty(`fn`, fn)
|
|
]);
|
|
}
|
|
function hasForwardedSlots(children) {
|
|
for (let i = 0; i < children.length; i++) {
|
|
const child = children[i];
|
|
if (child.type === 1 /* ELEMENT */) {
|
|
if (child.tagType === 2 /* SLOT */ ||
|
|
(child.tagType === 0 /* ELEMENT */ &&
|
|
hasForwardedSlots(child.children))) {
|
|
return true;
|
|
}
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
// some directive transforms (e.g. v-model) may return a symbol for runtime
|
|
// import, which should be used instead of a resolveDirective call.
|
|
const directiveImportMap = new WeakMap();
|
|
// generate a JavaScript AST for this element's codegen
|
|
const transformElement = (node, context) => {
|
|
if (!(node.type === 1 /* ELEMENT */ &&
|
|
(node.tagType === 0 /* ELEMENT */ ||
|
|
node.tagType === 1 /* COMPONENT */))) {
|
|
return;
|
|
}
|
|
// perform the work on exit, after all child expressions have been
|
|
// processed and merged.
|
|
return function postTransformElement() {
|
|
const { tag, props } = node;
|
|
const isComponent = node.tagType === 1 /* COMPONENT */;
|
|
// The goal of the transform is to create a codegenNode implementing the
|
|
// VNodeCall interface.
|
|
const vnodeTag = isComponent
|
|
? resolveComponentType(node, context)
|
|
: `"${tag}"`;
|
|
const isDynamicComponent = isObject(vnodeTag) && vnodeTag.callee === RESOLVE_DYNAMIC_COMPONENT;
|
|
let vnodeProps;
|
|
let vnodeChildren;
|
|
let vnodePatchFlag;
|
|
let patchFlag = 0;
|
|
let vnodeDynamicProps;
|
|
let dynamicPropNames;
|
|
let vnodeDirectives;
|
|
let shouldUseBlock =
|
|
// dynamic component may resolve to plain elements
|
|
isDynamicComponent ||
|
|
vnodeTag === TELEPORT ||
|
|
vnodeTag === SUSPENSE ||
|
|
(!isComponent &&
|
|
// <svg> and <foreignObject> must be forced into blocks so that block
|
|
// updates inside get proper isSVG flag at runtime. (#639, #643)
|
|
// This is technically web-specific, but splitting the logic out of core
|
|
// leads to too much unnecessary complexity.
|
|
(tag === 'svg' ||
|
|
tag === 'foreignObject' ||
|
|
// #938: elements with dynamic keys should be forced into blocks
|
|
findProp(node, 'key', true)));
|
|
// props
|
|
if (props.length > 0) {
|
|
const propsBuildResult = buildProps(node, context);
|
|
vnodeProps = propsBuildResult.props;
|
|
patchFlag = propsBuildResult.patchFlag;
|
|
dynamicPropNames = propsBuildResult.dynamicPropNames;
|
|
const directives = propsBuildResult.directives;
|
|
vnodeDirectives =
|
|
directives && directives.length
|
|
? createArrayExpression(directives.map(dir => buildDirectiveArgs(dir, context)))
|
|
: undefined;
|
|
}
|
|
// children
|
|
if (node.children.length > 0) {
|
|
if (vnodeTag === KEEP_ALIVE) {
|
|
// Although a built-in component, we compile KeepAlive with raw children
|
|
// instead of slot functions so that it can be used inside Transition
|
|
// or other Transition-wrapping HOCs.
|
|
// To ensure correct updates with block optimizations, we need to:
|
|
// 1. Force keep-alive into a block. This avoids its children being
|
|
// collected by a parent block.
|
|
shouldUseBlock = true;
|
|
// 2. Force keep-alive to always be updated, since it uses raw children.
|
|
patchFlag |= 1024 /* DYNAMIC_SLOTS */;
|
|
if ( node.children.length > 1) {
|
|
context.onError(createCompilerError(44 /* X_KEEP_ALIVE_INVALID_CHILDREN */, {
|
|
start: node.children[0].loc.start,
|
|
end: node.children[node.children.length - 1].loc.end,
|
|
source: ''
|
|
}));
|
|
}
|
|
}
|
|
const shouldBuildAsSlots = isComponent &&
|
|
// Teleport is not a real component and has dedicated runtime handling
|
|
vnodeTag !== TELEPORT &&
|
|
// explained above.
|
|
vnodeTag !== KEEP_ALIVE;
|
|
if (shouldBuildAsSlots) {
|
|
const { slots, hasDynamicSlots } = buildSlots(node, context);
|
|
vnodeChildren = slots;
|
|
if (hasDynamicSlots) {
|
|
patchFlag |= 1024 /* DYNAMIC_SLOTS */;
|
|
}
|
|
}
|
|
else if (node.children.length === 1 && vnodeTag !== TELEPORT) {
|
|
const child = node.children[0];
|
|
const type = child.type;
|
|
// check for dynamic text children
|
|
const hasDynamicTextChild = type === 5 /* INTERPOLATION */ ||
|
|
type === 8 /* COMPOUND_EXPRESSION */;
|
|
if (hasDynamicTextChild && !getStaticType(child)) {
|
|
patchFlag |= 1 /* TEXT */;
|
|
}
|
|
// pass directly if the only child is a text node
|
|
// (plain / interpolation / expression)
|
|
if (hasDynamicTextChild || type === 2 /* TEXT */) {
|
|
vnodeChildren = child;
|
|
}
|
|
else {
|
|
vnodeChildren = node.children;
|
|
}
|
|
}
|
|
else {
|
|
vnodeChildren = node.children;
|
|
}
|
|
}
|
|
// patchFlag & dynamicPropNames
|
|
if (patchFlag !== 0) {
|
|
{
|
|
if (patchFlag < 0) {
|
|
// special flags (negative and mutually exclusive)
|
|
vnodePatchFlag = patchFlag + ` /* ${PatchFlagNames[patchFlag]} */`;
|
|
}
|
|
else {
|
|
// bitwise flags
|
|
const flagNames = Object.keys(PatchFlagNames)
|
|
.map(Number)
|
|
.filter(n => n > 0 && patchFlag & n)
|
|
.map(n => PatchFlagNames[n])
|
|
.join(`, `);
|
|
vnodePatchFlag = patchFlag + ` /* ${flagNames} */`;
|
|
}
|
|
}
|
|
if (dynamicPropNames && dynamicPropNames.length) {
|
|
vnodeDynamicProps = stringifyDynamicPropNames(dynamicPropNames);
|
|
}
|
|
}
|
|
node.codegenNode = createVNodeCall(context, vnodeTag, vnodeProps, vnodeChildren, vnodePatchFlag, vnodeDynamicProps, vnodeDirectives, !!shouldUseBlock, false /* disableTracking */, node.loc);
|
|
};
|
|
};
|
|
function resolveComponentType(node, context, ssr = false) {
|
|
const { tag } = node;
|
|
// 1. dynamic component
|
|
const isProp = node.tag === 'component' ? findProp(node, 'is') : findDir(node, 'is');
|
|
if (isProp) {
|
|
const exp = isProp.type === 6 /* ATTRIBUTE */
|
|
? isProp.value && createSimpleExpression(isProp.value.content, true)
|
|
: isProp.exp;
|
|
if (exp) {
|
|
return createCallExpression(context.helper(RESOLVE_DYNAMIC_COMPONENT), [
|
|
exp
|
|
]);
|
|
}
|
|
}
|
|
// 2. built-in components (Teleport, Transition, KeepAlive, Suspense...)
|
|
const builtIn = isCoreComponent(tag) || context.isBuiltInComponent(tag);
|
|
if (builtIn) {
|
|
// built-ins are simply fallthroughs / have special handling during ssr
|
|
// no we don't need to import their runtime equivalents
|
|
if (!ssr)
|
|
context.helper(builtIn);
|
|
return builtIn;
|
|
}
|
|
// 3. user component (from setup bindings)
|
|
if (context.bindingMetadata[tag] === 'setup') {
|
|
return `$setup[${JSON.stringify(tag)}]`;
|
|
}
|
|
// 4. user component (resolve)
|
|
context.helper(RESOLVE_COMPONENT);
|
|
context.components.add(tag);
|
|
return toValidAssetId(tag, `component`);
|
|
}
|
|
function buildProps(node, context, props = node.props, ssr = false) {
|
|
const { tag, loc: elementLoc } = node;
|
|
const isComponent = node.tagType === 1 /* COMPONENT */;
|
|
let properties = [];
|
|
const mergeArgs = [];
|
|
const runtimeDirectives = [];
|
|
// patchFlag analysis
|
|
let patchFlag = 0;
|
|
let hasRef = false;
|
|
let hasClassBinding = false;
|
|
let hasStyleBinding = false;
|
|
let hasHydrationEventBinding = false;
|
|
let hasDynamicKeys = false;
|
|
let hasVnodeHook = false;
|
|
const dynamicPropNames = [];
|
|
const analyzePatchFlag = ({ key, value }) => {
|
|
if (isStaticExp(key)) {
|
|
const name = key.content;
|
|
const isEventHandler = isOn(name);
|
|
if (!isComponent &&
|
|
isEventHandler &&
|
|
// omit the flag for click handlers because hydration gives click
|
|
// dedicated fast path.
|
|
name.toLowerCase() !== 'onclick' &&
|
|
// omit v-model handlers
|
|
name !== 'onUpdate:modelValue' &&
|
|
// omit onVnodeXXX hooks
|
|
!isReservedProp(name)) {
|
|
hasHydrationEventBinding = true;
|
|
}
|
|
if (isEventHandler && isReservedProp(name)) {
|
|
hasVnodeHook = true;
|
|
}
|
|
if (value.type === 20 /* JS_CACHE_EXPRESSION */ ||
|
|
((value.type === 4 /* SIMPLE_EXPRESSION */ ||
|
|
value.type === 8 /* COMPOUND_EXPRESSION */) &&
|
|
getStaticType(value) > 0)) {
|
|
// skip if the prop is a cached handler or has constant value
|
|
return;
|
|
}
|
|
if (name === 'ref') {
|
|
hasRef = true;
|
|
}
|
|
else if (name === 'class' && !isComponent) {
|
|
hasClassBinding = true;
|
|
}
|
|
else if (name === 'style' && !isComponent) {
|
|
hasStyleBinding = true;
|
|
}
|
|
else if (name !== 'key' && !dynamicPropNames.includes(name)) {
|
|
dynamicPropNames.push(name);
|
|
}
|
|
}
|
|
else {
|
|
hasDynamicKeys = true;
|
|
}
|
|
};
|
|
for (let i = 0; i < props.length; i++) {
|
|
// static attribute
|
|
const prop = props[i];
|
|
if (prop.type === 6 /* ATTRIBUTE */) {
|
|
const { loc, name, value } = prop;
|
|
if (name === 'ref') {
|
|
hasRef = true;
|
|
}
|
|
// skip :is on <component>
|
|
if (name === 'is' && tag === 'component') {
|
|
continue;
|
|
}
|
|
properties.push(createObjectProperty(createSimpleExpression(name, true, getInnerRange(loc, 0, name.length)), createSimpleExpression(value ? value.content : '', true, value ? value.loc : loc)));
|
|
}
|
|
else {
|
|
// directives
|
|
const { name, arg, exp, loc } = prop;
|
|
const isBind = name === 'bind';
|
|
const isOn = name === 'on';
|
|
// skip v-slot - it is handled by its dedicated transform.
|
|
if (name === 'slot') {
|
|
if (!isComponent) {
|
|
context.onError(createCompilerError(39 /* X_V_SLOT_MISPLACED */, loc));
|
|
}
|
|
continue;
|
|
}
|
|
// skip v-once - it is handled by its dedicated transform.
|
|
if (name === 'once') {
|
|
continue;
|
|
}
|
|
// skip v-is and :is on <component>
|
|
if (name === 'is' ||
|
|
(isBind && tag === 'component' && isBindKey(arg, 'is'))) {
|
|
continue;
|
|
}
|
|
// skip v-on in SSR compilation
|
|
if (isOn && ssr) {
|
|
continue;
|
|
}
|
|
// special case for v-bind and v-on with no argument
|
|
if (!arg && (isBind || isOn)) {
|
|
hasDynamicKeys = true;
|
|
if (exp) {
|
|
if (properties.length) {
|
|
mergeArgs.push(createObjectExpression(dedupeProperties(properties), elementLoc));
|
|
properties = [];
|
|
}
|
|
if (isBind) {
|
|
mergeArgs.push(exp);
|
|
}
|
|
else {
|
|
// v-on="obj" -> toHandlers(obj)
|
|
mergeArgs.push({
|
|
type: 14 /* JS_CALL_EXPRESSION */,
|
|
loc,
|
|
callee: context.helper(TO_HANDLERS),
|
|
arguments: [exp]
|
|
});
|
|
}
|
|
}
|
|
else {
|
|
context.onError(createCompilerError(isBind
|
|
? 33 /* X_V_BIND_NO_EXPRESSION */
|
|
: 34 /* X_V_ON_NO_EXPRESSION */, loc));
|
|
}
|
|
continue;
|
|
}
|
|
const directiveTransform = context.directiveTransforms[name];
|
|
if (directiveTransform) {
|
|
// has built-in directive transform.
|
|
const { props, needRuntime } = directiveTransform(prop, node, context);
|
|
!ssr && props.forEach(analyzePatchFlag);
|
|
properties.push(...props);
|
|
if (needRuntime) {
|
|
runtimeDirectives.push(prop);
|
|
if (isSymbol(needRuntime)) {
|
|
directiveImportMap.set(prop, needRuntime);
|
|
}
|
|
}
|
|
}
|
|
else {
|
|
// no built-in transform, this is a user custom directive.
|
|
runtimeDirectives.push(prop);
|
|
}
|
|
}
|
|
}
|
|
let propsExpression = undefined;
|
|
// has v-bind="object" or v-on="object", wrap with mergeProps
|
|
if (mergeArgs.length) {
|
|
if (properties.length) {
|
|
mergeArgs.push(createObjectExpression(dedupeProperties(properties), elementLoc));
|
|
}
|
|
if (mergeArgs.length > 1) {
|
|
propsExpression = createCallExpression(context.helper(MERGE_PROPS), mergeArgs, elementLoc);
|
|
}
|
|
else {
|
|
// single v-bind with nothing else - no need for a mergeProps call
|
|
propsExpression = mergeArgs[0];
|
|
}
|
|
}
|
|
else if (properties.length) {
|
|
propsExpression = createObjectExpression(dedupeProperties(properties), elementLoc);
|
|
}
|
|
// patchFlag analysis
|
|
if (hasDynamicKeys) {
|
|
patchFlag |= 16 /* FULL_PROPS */;
|
|
}
|
|
else {
|
|
if (hasClassBinding) {
|
|
patchFlag |= 2 /* CLASS */;
|
|
}
|
|
if (hasStyleBinding) {
|
|
patchFlag |= 4 /* STYLE */;
|
|
}
|
|
if (dynamicPropNames.length) {
|
|
patchFlag |= 8 /* PROPS */;
|
|
}
|
|
if (hasHydrationEventBinding) {
|
|
patchFlag |= 32 /* HYDRATE_EVENTS */;
|
|
}
|
|
}
|
|
if ((patchFlag === 0 || patchFlag === 32 /* HYDRATE_EVENTS */) &&
|
|
(hasRef || hasVnodeHook || runtimeDirectives.length > 0)) {
|
|
patchFlag |= 512 /* NEED_PATCH */;
|
|
}
|
|
return {
|
|
props: propsExpression,
|
|
directives: runtimeDirectives,
|
|
patchFlag,
|
|
dynamicPropNames
|
|
};
|
|
}
|
|
// Dedupe props in an object literal.
|
|
// Literal duplicated attributes would have been warned during the parse phase,
|
|
// however, it's possible to encounter duplicated `onXXX` handlers with different
|
|
// modifiers. We also need to merge static and dynamic class / style attributes.
|
|
// - onXXX handlers / style: merge into array
|
|
// - class: merge into single expression with concatenation
|
|
function dedupeProperties(properties) {
|
|
const knownProps = new Map();
|
|
const deduped = [];
|
|
for (let i = 0; i < properties.length; i++) {
|
|
const prop = properties[i];
|
|
// dynamic keys are always allowed
|
|
if (prop.key.type === 8 /* COMPOUND_EXPRESSION */ || !prop.key.isStatic) {
|
|
deduped.push(prop);
|
|
continue;
|
|
}
|
|
const name = prop.key.content;
|
|
const existing = knownProps.get(name);
|
|
if (existing) {
|
|
if (name === 'style' || name === 'class' || name.startsWith('on')) {
|
|
mergeAsArray(existing, prop);
|
|
}
|
|
// unexpected duplicate, should have emitted error during parse
|
|
}
|
|
else {
|
|
knownProps.set(name, prop);
|
|
deduped.push(prop);
|
|
}
|
|
}
|
|
return deduped;
|
|
}
|
|
function mergeAsArray(existing, incoming) {
|
|
if (existing.value.type === 17 /* JS_ARRAY_EXPRESSION */) {
|
|
existing.value.elements.push(incoming.value);
|
|
}
|
|
else {
|
|
existing.value = createArrayExpression([existing.value, incoming.value], existing.loc);
|
|
}
|
|
}
|
|
function buildDirectiveArgs(dir, context) {
|
|
const dirArgs = [];
|
|
const runtime = directiveImportMap.get(dir);
|
|
if (runtime) {
|
|
dirArgs.push(context.helperString(runtime));
|
|
}
|
|
else {
|
|
// inject statement for resolving directive
|
|
context.helper(RESOLVE_DIRECTIVE);
|
|
context.directives.add(dir.name);
|
|
dirArgs.push(toValidAssetId(dir.name, `directive`));
|
|
}
|
|
const { loc } = dir;
|
|
if (dir.exp)
|
|
dirArgs.push(dir.exp);
|
|
if (dir.arg) {
|
|
if (!dir.exp) {
|
|
dirArgs.push(`void 0`);
|
|
}
|
|
dirArgs.push(dir.arg);
|
|
}
|
|
if (Object.keys(dir.modifiers).length) {
|
|
if (!dir.arg) {
|
|
if (!dir.exp) {
|
|
dirArgs.push(`void 0`);
|
|
}
|
|
dirArgs.push(`void 0`);
|
|
}
|
|
const trueExpression = createSimpleExpression(`true`, false, loc);
|
|
dirArgs.push(createObjectExpression(dir.modifiers.map(modifier => createObjectProperty(modifier, trueExpression)), loc));
|
|
}
|
|
return createArrayExpression(dirArgs, dir.loc);
|
|
}
|
|
function stringifyDynamicPropNames(props) {
|
|
let propsNamesString = `[`;
|
|
for (let i = 0, l = props.length; i < l; i++) {
|
|
propsNamesString += JSON.stringify(props[i]);
|
|
if (i < l - 1)
|
|
propsNamesString += ', ';
|
|
}
|
|
return propsNamesString + `]`;
|
|
}
|
|
|
|
const transformSlotOutlet = (node, context) => {
|
|
if (isSlotOutlet(node)) {
|
|
const { children, loc } = node;
|
|
const { slotName, slotProps } = processSlotOutlet(node, context);
|
|
const slotArgs = [
|
|
context.prefixIdentifiers ? `_ctx.$slots` : `$slots`,
|
|
slotName
|
|
];
|
|
if (slotProps) {
|
|
slotArgs.push(slotProps);
|
|
}
|
|
if (children.length) {
|
|
if (!slotProps) {
|
|
slotArgs.push(`{}`);
|
|
}
|
|
slotArgs.push(createFunctionExpression([], children, false, false, loc));
|
|
}
|
|
node.codegenNode = createCallExpression(context.helper(RENDER_SLOT), slotArgs, loc);
|
|
}
|
|
};
|
|
function processSlotOutlet(node, context) {
|
|
let slotName = `"default"`;
|
|
let slotProps = undefined;
|
|
// check for <slot name="xxx" OR :name="xxx" />
|
|
const name = findProp(node, 'name');
|
|
if (name) {
|
|
if (name.type === 6 /* ATTRIBUTE */ && name.value) {
|
|
// static name
|
|
slotName = JSON.stringify(name.value.content);
|
|
}
|
|
else if (name.type === 7 /* DIRECTIVE */ && name.exp) {
|
|
// dynamic name
|
|
slotName = name.exp;
|
|
}
|
|
}
|
|
const propsWithoutName = name
|
|
? node.props.filter(p => p !== name)
|
|
: node.props;
|
|
if (propsWithoutName.length > 0) {
|
|
const { props, directives } = buildProps(node, context, propsWithoutName);
|
|
slotProps = props;
|
|
if (directives.length) {
|
|
context.onError(createCompilerError(35 /* X_V_SLOT_UNEXPECTED_DIRECTIVE_ON_SLOT_OUTLET */, directives[0].loc));
|
|
}
|
|
}
|
|
return {
|
|
slotName,
|
|
slotProps
|
|
};
|
|
}
|
|
|
|
const fnExpRE = /^\s*([\w$_]+|\([^)]*?\))\s*=>|^\s*function(?:\s+[\w$]+)?\s*\(/;
|
|
const transformOn = (dir, node, context, augmentor) => {
|
|
const { loc, modifiers, arg } = dir;
|
|
if (!dir.exp && !modifiers.length) {
|
|
context.onError(createCompilerError(34 /* X_V_ON_NO_EXPRESSION */, loc));
|
|
}
|
|
let eventName;
|
|
if (arg.type === 4 /* SIMPLE_EXPRESSION */) {
|
|
if (arg.isStatic) {
|
|
const rawName = arg.content;
|
|
// for all event listeners, auto convert it to camelCase. See issue #2249
|
|
eventName = createSimpleExpression(toHandlerKey(camelize(rawName)), true, arg.loc);
|
|
}
|
|
else {
|
|
// #2388
|
|
eventName = createCompoundExpression([
|
|
`${context.helperString(TO_HANDLER_KEY)}(`,
|
|
arg,
|
|
`)`
|
|
]);
|
|
}
|
|
}
|
|
else {
|
|
// already a compound expression.
|
|
eventName = arg;
|
|
eventName.children.unshift(`${context.helperString(TO_HANDLER_KEY)}(`);
|
|
eventName.children.push(`)`);
|
|
}
|
|
// handler processing
|
|
let exp = dir.exp;
|
|
if (exp && !exp.content.trim()) {
|
|
exp = undefined;
|
|
}
|
|
let isCacheable = context.cacheHandlers && !exp;
|
|
if (exp) {
|
|
const isMemberExp = isMemberExpression(exp.content);
|
|
const isInlineStatement = !(isMemberExp || fnExpRE.test(exp.content));
|
|
const hasMultipleStatements = exp.content.includes(`;`);
|
|
{
|
|
validateBrowserExpression(exp, context, false, hasMultipleStatements);
|
|
}
|
|
if (isInlineStatement || (isCacheable && isMemberExp)) {
|
|
// wrap inline statement in a function expression
|
|
exp = createCompoundExpression([
|
|
`${isInlineStatement ? `$event` : `(...args)`} => ${hasMultipleStatements ? `{` : `(`}`,
|
|
exp,
|
|
hasMultipleStatements ? `}` : `)`
|
|
]);
|
|
}
|
|
}
|
|
let ret = {
|
|
props: [
|
|
createObjectProperty(eventName, exp || createSimpleExpression(`() => {}`, false, loc))
|
|
]
|
|
};
|
|
// apply extended compiler augmentor
|
|
if (augmentor) {
|
|
ret = augmentor(ret);
|
|
}
|
|
if (isCacheable) {
|
|
// cache handlers so that it's always the same handler being passed down.
|
|
// this avoids unnecessary re-renders when users use inline handlers on
|
|
// components.
|
|
ret.props[0].value = context.cache(ret.props[0].value);
|
|
}
|
|
return ret;
|
|
};
|
|
|
|
// v-bind without arg is handled directly in ./transformElements.ts due to it affecting
|
|
// codegen for the entire props object. This transform here is only for v-bind
|
|
// *with* args.
|
|
const transformBind = (dir, node, context) => {
|
|
const { exp, modifiers, loc } = dir;
|
|
const arg = dir.arg;
|
|
if (arg.type !== 4 /* SIMPLE_EXPRESSION */) {
|
|
arg.children.unshift(`(`);
|
|
arg.children.push(`) || ""`);
|
|
}
|
|
else if (!arg.isStatic) {
|
|
arg.content = `${arg.content} || ""`;
|
|
}
|
|
// .prop is no longer necessary due to new patch behavior
|
|
// .sync is replaced by v-model:arg
|
|
if (modifiers.includes('camel')) {
|
|
if (arg.type === 4 /* SIMPLE_EXPRESSION */) {
|
|
if (arg.isStatic) {
|
|
arg.content = camelize(arg.content);
|
|
}
|
|
else {
|
|
arg.content = `${context.helperString(CAMELIZE)}(${arg.content})`;
|
|
}
|
|
}
|
|
else {
|
|
arg.children.unshift(`${context.helperString(CAMELIZE)}(`);
|
|
arg.children.push(`)`);
|
|
}
|
|
}
|
|
if (!exp ||
|
|
(exp.type === 4 /* SIMPLE_EXPRESSION */ && !exp.content.trim())) {
|
|
context.onError(createCompilerError(33 /* X_V_BIND_NO_EXPRESSION */, loc));
|
|
return {
|
|
props: [createObjectProperty(arg, createSimpleExpression('', true, loc))]
|
|
};
|
|
}
|
|
return {
|
|
props: [createObjectProperty(arg, exp)]
|
|
};
|
|
};
|
|
|
|
// Merge adjacent text nodes and expressions into a single expression
|
|
// e.g. <div>abc {{ d }} {{ e }}</div> should have a single expression node as child.
|
|
const transformText = (node, context) => {
|
|
if (node.type === 0 /* ROOT */ ||
|
|
node.type === 1 /* ELEMENT */ ||
|
|
node.type === 11 /* FOR */ ||
|
|
node.type === 10 /* IF_BRANCH */) {
|
|
// perform the transform on node exit so that all expressions have already
|
|
// been processed.
|
|
return () => {
|
|
const children = node.children;
|
|
let currentContainer = undefined;
|
|
let hasText = false;
|
|
for (let i = 0; i < children.length; i++) {
|
|
const child = children[i];
|
|
if (isText(child)) {
|
|
hasText = true;
|
|
for (let j = i + 1; j < children.length; j++) {
|
|
const next = children[j];
|
|
if (isText(next)) {
|
|
if (!currentContainer) {
|
|
currentContainer = children[i] = {
|
|
type: 8 /* COMPOUND_EXPRESSION */,
|
|
loc: child.loc,
|
|
children: [child]
|
|
};
|
|
}
|
|
// merge adjacent text node into current
|
|
currentContainer.children.push(` + `, next);
|
|
children.splice(j, 1);
|
|
j--;
|
|
}
|
|
else {
|
|
currentContainer = undefined;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
if (!hasText ||
|
|
// if this is a plain element with a single text child, leave it
|
|
// as-is since the runtime has dedicated fast path for this by directly
|
|
// setting textContent of the element.
|
|
// for component root it's always normalized anyway.
|
|
(children.length === 1 &&
|
|
(node.type === 0 /* ROOT */ ||
|
|
(node.type === 1 /* ELEMENT */ &&
|
|
node.tagType === 0 /* ELEMENT */)))) {
|
|
return;
|
|
}
|
|
// pre-convert text nodes into createTextVNode(text) calls to avoid
|
|
// runtime normalization.
|
|
for (let i = 0; i < children.length; i++) {
|
|
const child = children[i];
|
|
if (isText(child) || child.type === 8 /* COMPOUND_EXPRESSION */) {
|
|
const callArgs = [];
|
|
// createTextVNode defaults to single whitespace, so if it is a
|
|
// single space the code could be an empty call to save bytes.
|
|
if (child.type !== 2 /* TEXT */ || child.content !== ' ') {
|
|
callArgs.push(child);
|
|
}
|
|
// mark dynamic text with flag so it gets patched inside a block
|
|
if (!context.ssr && child.type !== 2 /* TEXT */) {
|
|
callArgs.push(`${1 /* TEXT */} /* ${PatchFlagNames[1 /* TEXT */]} */`);
|
|
}
|
|
children[i] = {
|
|
type: 12 /* TEXT_CALL */,
|
|
content: child,
|
|
loc: child.loc,
|
|
codegenNode: createCallExpression(context.helper(CREATE_TEXT), callArgs)
|
|
};
|
|
}
|
|
}
|
|
};
|
|
}
|
|
};
|
|
|
|
const seen = new WeakSet();
|
|
const transformOnce = (node, context) => {
|
|
if (node.type === 1 /* ELEMENT */ && findDir(node, 'once', true)) {
|
|
if (seen.has(node)) {
|
|
return;
|
|
}
|
|
seen.add(node);
|
|
context.helper(SET_BLOCK_TRACKING);
|
|
return () => {
|
|
const cur = context.currentNode;
|
|
if (cur.codegenNode) {
|
|
cur.codegenNode = context.cache(cur.codegenNode, true /* isVNode */);
|
|
}
|
|
};
|
|
}
|
|
};
|
|
|
|
const transformModel = (dir, node, context) => {
|
|
const { exp, arg } = dir;
|
|
if (!exp) {
|
|
context.onError(createCompilerError(40 /* X_V_MODEL_NO_EXPRESSION */, dir.loc));
|
|
return createTransformProps();
|
|
}
|
|
const expString = exp.type === 4 /* SIMPLE_EXPRESSION */ ? exp.content : exp.loc.source;
|
|
if (!isMemberExpression(expString)) {
|
|
context.onError(createCompilerError(41 /* X_V_MODEL_MALFORMED_EXPRESSION */, exp.loc));
|
|
return createTransformProps();
|
|
}
|
|
const propName = arg ? arg : createSimpleExpression('modelValue', true);
|
|
const eventName = arg
|
|
? isStaticExp(arg)
|
|
? `onUpdate:${arg.content}`
|
|
: createCompoundExpression(['"onUpdate:" + ', arg])
|
|
: `onUpdate:modelValue`;
|
|
const props = [
|
|
// modelValue: foo
|
|
createObjectProperty(propName, dir.exp),
|
|
// "onUpdate:modelValue": $event => (foo = $event)
|
|
createObjectProperty(eventName, createCompoundExpression([`$event => (`, exp, ` = $event)`]))
|
|
];
|
|
// modelModifiers: { foo: true, "bar-baz": true }
|
|
if (dir.modifiers.length && node.tagType === 1 /* COMPONENT */) {
|
|
const modifiers = dir.modifiers
|
|
.map(m => (isSimpleIdentifier(m) ? m : JSON.stringify(m)) + `: true`)
|
|
.join(`, `);
|
|
const modifiersKey = arg
|
|
? isStaticExp(arg)
|
|
? `${arg.content}Modifiers`
|
|
: createCompoundExpression([arg, ' + "Modifiers"'])
|
|
: `modelModifiers`;
|
|
props.push(createObjectProperty(modifiersKey, createSimpleExpression(`{ ${modifiers} }`, false, dir.loc, true)));
|
|
}
|
|
return createTransformProps(props);
|
|
};
|
|
function createTransformProps(props = []) {
|
|
return { props };
|
|
}
|
|
|
|
function getBaseTransformPreset(prefixIdentifiers) {
|
|
return [
|
|
[
|
|
transformOnce,
|
|
transformIf,
|
|
transformFor,
|
|
...( [transformExpression]
|
|
),
|
|
transformSlotOutlet,
|
|
transformElement,
|
|
trackSlotScopes,
|
|
transformText
|
|
],
|
|
{
|
|
on: transformOn,
|
|
bind: transformBind,
|
|
model: transformModel
|
|
}
|
|
];
|
|
}
|
|
// we name it `baseCompile` so that higher order compilers like
|
|
// @vue/compiler-dom can export `compile` while re-exporting everything else.
|
|
function baseCompile(template, options = {}) {
|
|
const onError = options.onError || defaultOnError;
|
|
const isModuleMode = options.mode === 'module';
|
|
/* istanbul ignore if */
|
|
{
|
|
if (options.prefixIdentifiers === true) {
|
|
onError(createCompilerError(45 /* X_PREFIX_ID_NOT_SUPPORTED */));
|
|
}
|
|
else if (isModuleMode) {
|
|
onError(createCompilerError(46 /* X_MODULE_MODE_NOT_SUPPORTED */));
|
|
}
|
|
}
|
|
const prefixIdentifiers = !true ;
|
|
if ( options.cacheHandlers) {
|
|
onError(createCompilerError(47 /* X_CACHE_HANDLER_NOT_SUPPORTED */));
|
|
}
|
|
if (options.scopeId && !isModuleMode) {
|
|
onError(createCompilerError(48 /* X_SCOPE_ID_NOT_SUPPORTED */));
|
|
}
|
|
const ast = isString(template) ? baseParse(template, options) : template;
|
|
const [nodeTransforms, directiveTransforms] = getBaseTransformPreset();
|
|
transform(ast, extend({}, options, {
|
|
prefixIdentifiers,
|
|
nodeTransforms: [
|
|
...nodeTransforms,
|
|
...(options.nodeTransforms || []) // user transforms
|
|
],
|
|
directiveTransforms: extend({}, directiveTransforms, options.directiveTransforms || {} // user transforms
|
|
)
|
|
}));
|
|
return generate(ast, extend({}, options, {
|
|
prefixIdentifiers
|
|
}));
|
|
}
|
|
|
|
const noopDirectiveTransform = () => ({ props: [] });
|
|
|
|
const V_MODEL_RADIO = Symbol( `vModelRadio` );
|
|
const V_MODEL_CHECKBOX = Symbol( `vModelCheckbox` );
|
|
const V_MODEL_TEXT = Symbol( `vModelText` );
|
|
const V_MODEL_SELECT = Symbol( `vModelSelect` );
|
|
const V_MODEL_DYNAMIC = Symbol( `vModelDynamic` );
|
|
const V_ON_WITH_MODIFIERS = Symbol( `vOnModifiersGuard` );
|
|
const V_ON_WITH_KEYS = Symbol( `vOnKeysGuard` );
|
|
const V_SHOW = Symbol( `vShow` );
|
|
const TRANSITION$1 = Symbol( `Transition` );
|
|
const TRANSITION_GROUP = Symbol( `TransitionGroup` );
|
|
registerRuntimeHelpers({
|
|
[V_MODEL_RADIO]: `vModelRadio`,
|
|
[V_MODEL_CHECKBOX]: `vModelCheckbox`,
|
|
[V_MODEL_TEXT]: `vModelText`,
|
|
[V_MODEL_SELECT]: `vModelSelect`,
|
|
[V_MODEL_DYNAMIC]: `vModelDynamic`,
|
|
[V_ON_WITH_MODIFIERS]: `withModifiers`,
|
|
[V_ON_WITH_KEYS]: `withKeys`,
|
|
[V_SHOW]: `vShow`,
|
|
[TRANSITION$1]: `Transition`,
|
|
[TRANSITION_GROUP]: `TransitionGroup`
|
|
});
|
|
|
|
/* eslint-disable no-restricted-globals */
|
|
let decoder;
|
|
function decodeHtmlBrowser(raw) {
|
|
(decoder || (decoder = document.createElement('div'))).innerHTML = raw;
|
|
return decoder.textContent;
|
|
}
|
|
|
|
const isRawTextContainer = /*#__PURE__*/ makeMap('style,iframe,script,noscript', true);
|
|
const parserOptions = {
|
|
isVoidTag,
|
|
isNativeTag: tag => isHTMLTag(tag) || isSVGTag(tag),
|
|
isPreTag: tag => tag === 'pre',
|
|
decodeEntities: decodeHtmlBrowser ,
|
|
isBuiltInComponent: (tag) => {
|
|
if (isBuiltInType(tag, `Transition`)) {
|
|
return TRANSITION$1;
|
|
}
|
|
else if (isBuiltInType(tag, `TransitionGroup`)) {
|
|
return TRANSITION_GROUP;
|
|
}
|
|
},
|
|
// https://html.spec.whatwg.org/multipage/parsing.html#tree-construction-dispatcher
|
|
getNamespace(tag, parent) {
|
|
let ns = parent ? parent.ns : 0 /* HTML */;
|
|
if (parent && ns === 2 /* MATH_ML */) {
|
|
if (parent.tag === 'annotation-xml') {
|
|
if (tag === 'svg') {
|
|
return 1 /* SVG */;
|
|
}
|
|
if (parent.props.some(a => a.type === 6 /* ATTRIBUTE */ &&
|
|
a.name === 'encoding' &&
|
|
a.value != null &&
|
|
(a.value.content === 'text/html' ||
|
|
a.value.content === 'application/xhtml+xml'))) {
|
|
ns = 0 /* HTML */;
|
|
}
|
|
}
|
|
else if (/^m(?:[ions]|text)$/.test(parent.tag) &&
|
|
tag !== 'mglyph' &&
|
|
tag !== 'malignmark') {
|
|
ns = 0 /* HTML */;
|
|
}
|
|
}
|
|
else if (parent && ns === 1 /* SVG */) {
|
|
if (parent.tag === 'foreignObject' ||
|
|
parent.tag === 'desc' ||
|
|
parent.tag === 'title') {
|
|
ns = 0 /* HTML */;
|
|
}
|
|
}
|
|
if (ns === 0 /* HTML */) {
|
|
if (tag === 'svg') {
|
|
return 1 /* SVG */;
|
|
}
|
|
if (tag === 'math') {
|
|
return 2 /* MATH_ML */;
|
|
}
|
|
}
|
|
return ns;
|
|
},
|
|
// https://html.spec.whatwg.org/multipage/parsing.html#parsing-html-fragments
|
|
getTextMode({ tag, ns }) {
|
|
if (ns === 0 /* HTML */) {
|
|
if (tag === 'textarea' || tag === 'title') {
|
|
return 1 /* RCDATA */;
|
|
}
|
|
if (isRawTextContainer(tag)) {
|
|
return 2 /* RAWTEXT */;
|
|
}
|
|
}
|
|
return 0 /* DATA */;
|
|
}
|
|
};
|
|
|
|
// Parse inline CSS strings for static style attributes into an object.
|
|
// This is a NodeTransform since it works on the static `style` attribute and
|
|
// converts it into a dynamic equivalent:
|
|
// style="color: red" -> :style='{ "color": "red" }'
|
|
// It is then processed by `transformElement` and included in the generated
|
|
// props.
|
|
const transformStyle = node => {
|
|
if (node.type === 1 /* ELEMENT */) {
|
|
node.props.forEach((p, i) => {
|
|
if (p.type === 6 /* ATTRIBUTE */ && p.name === 'style' && p.value) {
|
|
// replace p with an expression node
|
|
node.props[i] = {
|
|
type: 7 /* DIRECTIVE */,
|
|
name: `bind`,
|
|
arg: createSimpleExpression(`style`, true, p.loc),
|
|
exp: parseInlineCSS(p.value.content, p.loc),
|
|
modifiers: [],
|
|
loc: p.loc
|
|
};
|
|
}
|
|
});
|
|
}
|
|
};
|
|
const parseInlineCSS = (cssText, loc) => {
|
|
const normalized = parseStringStyle(cssText);
|
|
return createSimpleExpression(JSON.stringify(normalized), false, loc, true);
|
|
};
|
|
|
|
function createDOMCompilerError(code, loc) {
|
|
return createCompilerError(code, loc, DOMErrorMessages );
|
|
}
|
|
const DOMErrorMessages = {
|
|
[49 /* X_V_HTML_NO_EXPRESSION */]: `v-html is missing expression.`,
|
|
[50 /* X_V_HTML_WITH_CHILDREN */]: `v-html will override element children.`,
|
|
[51 /* X_V_TEXT_NO_EXPRESSION */]: `v-text is missing expression.`,
|
|
[52 /* X_V_TEXT_WITH_CHILDREN */]: `v-text will override element children.`,
|
|
[53 /* X_V_MODEL_ON_INVALID_ELEMENT */]: `v-model can only be used on <input>, <textarea> and <select> elements.`,
|
|
[54 /* X_V_MODEL_ARG_ON_ELEMENT */]: `v-model argument is not supported on plain elements.`,
|
|
[55 /* X_V_MODEL_ON_FILE_INPUT_ELEMENT */]: `v-model cannot be used on file inputs since they are read-only. Use a v-on:change listener instead.`,
|
|
[56 /* X_V_MODEL_UNNECESSARY_VALUE */]: `Unnecessary value binding used alongside v-model. It will interfere with v-model's behavior.`,
|
|
[57 /* X_V_SHOW_NO_EXPRESSION */]: `v-show is missing expression.`,
|
|
[58 /* X_TRANSITION_INVALID_CHILDREN */]: `<Transition> expects exactly one child element or component.`,
|
|
[59 /* X_IGNORED_SIDE_EFFECT_TAG */]: `Tags with side effect (<script> and <style>) are ignored in client component templates.`
|
|
};
|
|
|
|
const transformVHtml = (dir, node, context) => {
|
|
const { exp, loc } = dir;
|
|
if (!exp) {
|
|
context.onError(createDOMCompilerError(49 /* X_V_HTML_NO_EXPRESSION */, loc));
|
|
}
|
|
if (node.children.length) {
|
|
context.onError(createDOMCompilerError(50 /* X_V_HTML_WITH_CHILDREN */, loc));
|
|
node.children.length = 0;
|
|
}
|
|
return {
|
|
props: [
|
|
createObjectProperty(createSimpleExpression(`innerHTML`, true, loc), exp || createSimpleExpression('', true))
|
|
]
|
|
};
|
|
};
|
|
|
|
const transformVText = (dir, node, context) => {
|
|
const { exp, loc } = dir;
|
|
if (!exp) {
|
|
context.onError(createDOMCompilerError(51 /* X_V_TEXT_NO_EXPRESSION */, loc));
|
|
}
|
|
if (node.children.length) {
|
|
context.onError(createDOMCompilerError(52 /* X_V_TEXT_WITH_CHILDREN */, loc));
|
|
node.children.length = 0;
|
|
}
|
|
return {
|
|
props: [
|
|
createObjectProperty(createSimpleExpression(`textContent`, true), exp
|
|
? createCallExpression(context.helperString(TO_DISPLAY_STRING), [exp], loc)
|
|
: createSimpleExpression('', true))
|
|
]
|
|
};
|
|
};
|
|
|
|
const transformModel$1 = (dir, node, context) => {
|
|
const baseResult = transformModel(dir, node, context);
|
|
// base transform has errors OR component v-model (only need props)
|
|
if (!baseResult.props.length || node.tagType === 1 /* COMPONENT */) {
|
|
return baseResult;
|
|
}
|
|
if (dir.arg) {
|
|
context.onError(createDOMCompilerError(54 /* X_V_MODEL_ARG_ON_ELEMENT */, dir.arg.loc));
|
|
}
|
|
function checkDuplicatedValue() {
|
|
const value = findProp(node, 'value');
|
|
if (value) {
|
|
context.onError(createDOMCompilerError(56 /* X_V_MODEL_UNNECESSARY_VALUE */, value.loc));
|
|
}
|
|
}
|
|
const { tag } = node;
|
|
const isCustomElement = context.isCustomElement(tag);
|
|
if (tag === 'input' ||
|
|
tag === 'textarea' ||
|
|
tag === 'select' ||
|
|
isCustomElement) {
|
|
let directiveToUse = V_MODEL_TEXT;
|
|
let isInvalidType = false;
|
|
if (tag === 'input' || isCustomElement) {
|
|
const type = findProp(node, `type`);
|
|
if (type) {
|
|
if (type.type === 7 /* DIRECTIVE */) {
|
|
// :type="foo"
|
|
directiveToUse = V_MODEL_DYNAMIC;
|
|
}
|
|
else if (type.value) {
|
|
switch (type.value.content) {
|
|
case 'radio':
|
|
directiveToUse = V_MODEL_RADIO;
|
|
break;
|
|
case 'checkbox':
|
|
directiveToUse = V_MODEL_CHECKBOX;
|
|
break;
|
|
case 'file':
|
|
isInvalidType = true;
|
|
context.onError(createDOMCompilerError(55 /* X_V_MODEL_ON_FILE_INPUT_ELEMENT */, dir.loc));
|
|
break;
|
|
default:
|
|
// text type
|
|
checkDuplicatedValue();
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
else if (hasDynamicKeyVBind(node)) {
|
|
// element has bindings with dynamic keys, which can possibly contain
|
|
// "type".
|
|
directiveToUse = V_MODEL_DYNAMIC;
|
|
}
|
|
else {
|
|
// text type
|
|
checkDuplicatedValue();
|
|
}
|
|
}
|
|
else if (tag === 'select') {
|
|
directiveToUse = V_MODEL_SELECT;
|
|
}
|
|
else {
|
|
// textarea
|
|
checkDuplicatedValue();
|
|
}
|
|
// inject runtime directive
|
|
// by returning the helper symbol via needRuntime
|
|
// the import will replaced a resolveDirective call.
|
|
if (!isInvalidType) {
|
|
baseResult.needRuntime = context.helper(directiveToUse);
|
|
}
|
|
}
|
|
else {
|
|
context.onError(createDOMCompilerError(53 /* X_V_MODEL_ON_INVALID_ELEMENT */, dir.loc));
|
|
}
|
|
// native vmodel doesn't need the `modelValue` props since they are also
|
|
// passed to the runtime as `binding.value`. removing it reduces code size.
|
|
baseResult.props = baseResult.props.filter(p => !(p.key.type === 4 /* SIMPLE_EXPRESSION */ &&
|
|
p.key.content === 'modelValue'));
|
|
return baseResult;
|
|
};
|
|
|
|
const isEventOptionModifier = /*#__PURE__*/ makeMap(`passive,once,capture`);
|
|
const isNonKeyModifier = /*#__PURE__*/ makeMap(
|
|
// event propagation management
|
|
`stop,prevent,self,` +
|
|
// system modifiers + exact
|
|
`ctrl,shift,alt,meta,exact,` +
|
|
// mouse
|
|
`middle`);
|
|
// left & right could be mouse or key modifiers based on event type
|
|
const maybeKeyModifier = /*#__PURE__*/ makeMap('left,right');
|
|
const isKeyboardEvent = /*#__PURE__*/ makeMap(`onkeyup,onkeydown,onkeypress`, true);
|
|
const resolveModifiers = (key, modifiers) => {
|
|
const keyModifiers = [];
|
|
const nonKeyModifiers = [];
|
|
const eventOptionModifiers = [];
|
|
for (let i = 0; i < modifiers.length; i++) {
|
|
const modifier = modifiers[i];
|
|
if (isEventOptionModifier(modifier)) {
|
|
// eventOptionModifiers: modifiers for addEventListener() options,
|
|
// e.g. .passive & .capture
|
|
eventOptionModifiers.push(modifier);
|
|
}
|
|
else {
|
|
// runtimeModifiers: modifiers that needs runtime guards
|
|
if (maybeKeyModifier(modifier)) {
|
|
if (isStaticExp(key)) {
|
|
if (isKeyboardEvent(key.content)) {
|
|
keyModifiers.push(modifier);
|
|
}
|
|
else {
|
|
nonKeyModifiers.push(modifier);
|
|
}
|
|
}
|
|
else {
|
|
keyModifiers.push(modifier);
|
|
nonKeyModifiers.push(modifier);
|
|
}
|
|
}
|
|
else {
|
|
if (isNonKeyModifier(modifier)) {
|
|
nonKeyModifiers.push(modifier);
|
|
}
|
|
else {
|
|
keyModifiers.push(modifier);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
return {
|
|
keyModifiers,
|
|
nonKeyModifiers,
|
|
eventOptionModifiers
|
|
};
|
|
};
|
|
const transformClick = (key, event) => {
|
|
const isStaticClick = isStaticExp(key) && key.content.toLowerCase() === 'onclick';
|
|
return isStaticClick
|
|
? createSimpleExpression(event, true)
|
|
: key.type !== 4 /* SIMPLE_EXPRESSION */
|
|
? createCompoundExpression([
|
|
`(`,
|
|
key,
|
|
`) === "onClick" ? "${event}" : (`,
|
|
key,
|
|
`)`
|
|
])
|
|
: key;
|
|
};
|
|
const transformOn$1 = (dir, node, context) => {
|
|
return transformOn(dir, node, context, baseResult => {
|
|
const { modifiers } = dir;
|
|
if (!modifiers.length)
|
|
return baseResult;
|
|
let { key, value: handlerExp } = baseResult.props[0];
|
|
const { keyModifiers, nonKeyModifiers, eventOptionModifiers } = resolveModifiers(key, modifiers);
|
|
// normalize click.right and click.middle since they don't actually fire
|
|
if (nonKeyModifiers.includes('right')) {
|
|
key = transformClick(key, `onContextmenu`);
|
|
}
|
|
if (nonKeyModifiers.includes('middle')) {
|
|
key = transformClick(key, `onMouseup`);
|
|
}
|
|
if (nonKeyModifiers.length) {
|
|
handlerExp = createCallExpression(context.helper(V_ON_WITH_MODIFIERS), [
|
|
handlerExp,
|
|
JSON.stringify(nonKeyModifiers)
|
|
]);
|
|
}
|
|
if (keyModifiers.length &&
|
|
// if event name is dynamic, always wrap with keys guard
|
|
(!isStaticExp(key) || isKeyboardEvent(key.content))) {
|
|
handlerExp = createCallExpression(context.helper(V_ON_WITH_KEYS), [
|
|
handlerExp,
|
|
JSON.stringify(keyModifiers)
|
|
]);
|
|
}
|
|
if (eventOptionModifiers.length) {
|
|
const modifierPostfix = eventOptionModifiers.map(capitalize).join('');
|
|
key = isStaticExp(key)
|
|
? createSimpleExpression(`${key.content}${modifierPostfix}`, true)
|
|
: createCompoundExpression([`(`, key, `) + "${modifierPostfix}"`]);
|
|
}
|
|
return {
|
|
props: [createObjectProperty(key, handlerExp)]
|
|
};
|
|
});
|
|
};
|
|
|
|
const transformShow = (dir, node, context) => {
|
|
const { exp, loc } = dir;
|
|
if (!exp) {
|
|
context.onError(createDOMCompilerError(57 /* X_V_SHOW_NO_EXPRESSION */, loc));
|
|
}
|
|
return {
|
|
props: [],
|
|
needRuntime: context.helper(V_SHOW)
|
|
};
|
|
};
|
|
|
|
const warnTransitionChildren = (node, context) => {
|
|
if (node.type === 1 /* ELEMENT */ &&
|
|
node.tagType === 1 /* COMPONENT */) {
|
|
const component = context.isBuiltInComponent(node.tag);
|
|
if (component === TRANSITION$1) {
|
|
return () => {
|
|
if (node.children.length && hasMultipleChildren(node)) {
|
|
context.onError(createDOMCompilerError(58 /* X_TRANSITION_INVALID_CHILDREN */, {
|
|
start: node.children[0].loc.start,
|
|
end: node.children[node.children.length - 1].loc.end,
|
|
source: ''
|
|
}));
|
|
}
|
|
};
|
|
}
|
|
}
|
|
};
|
|
function hasMultipleChildren(node) {
|
|
// #1352 filter out potential comment nodes.
|
|
const children = (node.children = node.children.filter(c => c.type !== 3 /* COMMENT */));
|
|
const child = children[0];
|
|
return (children.length !== 1 ||
|
|
child.type === 11 /* FOR */ ||
|
|
(child.type === 9 /* IF */ && child.branches.some(hasMultipleChildren)));
|
|
}
|
|
|
|
const ignoreSideEffectTags = (node, context) => {
|
|
if (node.type === 1 /* ELEMENT */ &&
|
|
node.tagType === 0 /* ELEMENT */ &&
|
|
(node.tag === 'script' || node.tag === 'style')) {
|
|
context.onError(createDOMCompilerError(59 /* X_IGNORED_SIDE_EFFECT_TAG */, node.loc));
|
|
context.removeNode();
|
|
}
|
|
};
|
|
|
|
const DOMNodeTransforms = [
|
|
transformStyle,
|
|
...( [warnTransitionChildren] )
|
|
];
|
|
const DOMDirectiveTransforms = {
|
|
cloak: noopDirectiveTransform,
|
|
html: transformVHtml,
|
|
text: transformVText,
|
|
model: transformModel$1,
|
|
on: transformOn$1,
|
|
show: transformShow
|
|
};
|
|
function compile$1(template, options = {}) {
|
|
return baseCompile(template, extend({}, parserOptions, options, {
|
|
nodeTransforms: [
|
|
// ignore <script> and <tag>
|
|
// this is not put inside DOMNodeTransforms because that list is used
|
|
// by compiler-ssr to generate vnode fallback branches
|
|
ignoreSideEffectTags,
|
|
...DOMNodeTransforms,
|
|
...(options.nodeTransforms || [])
|
|
],
|
|
directiveTransforms: extend({}, DOMDirectiveTransforms, options.directiveTransforms || {}),
|
|
transformHoist: null
|
|
}));
|
|
}
|
|
|
|
// This entry is the "full-build" that includes both the runtime
|
|
initDev();
|
|
const compileCache = Object.create(null);
|
|
function compileToFunction(template, options) {
|
|
if (!isString(template)) {
|
|
if (template.nodeType) {
|
|
template = template.innerHTML;
|
|
}
|
|
else {
|
|
warn(`invalid template option: `, template);
|
|
return NOOP;
|
|
}
|
|
}
|
|
const key = template;
|
|
const cached = compileCache[key];
|
|
if (cached) {
|
|
return cached;
|
|
}
|
|
if (template[0] === '#') {
|
|
const el = document.querySelector(template);
|
|
if ( !el) {
|
|
warn(`Template element not found or is empty: ${template}`);
|
|
}
|
|
// __UNSAFE__
|
|
// Reason: potential execution of JS expressions in in-DOM template.
|
|
// The user must make sure the in-DOM template is trusted. If it's rendered
|
|
// by the server, the template should not contain any user data.
|
|
template = el ? el.innerHTML : ``;
|
|
}
|
|
const { code } = compile$1(template, extend({
|
|
hoistStatic: true,
|
|
onError(err) {
|
|
{
|
|
const message = `Template compilation error: ${err.message}`;
|
|
const codeFrame = err.loc &&
|
|
generateCodeFrame(template, err.loc.start.offset, err.loc.end.offset);
|
|
warn(codeFrame ? `${message}\n${codeFrame}` : message);
|
|
}
|
|
}
|
|
}, options));
|
|
// The wildcard import results in a huge object with every export
|
|
// with keys that cannot be mangled, and can be quite heavy size-wise.
|
|
// In the global build we know `Vue` is available globally so we can avoid
|
|
// the wildcard object.
|
|
const render = ( new Function(code)()
|
|
);
|
|
render._rc = true;
|
|
return (compileCache[key] = render);
|
|
}
|
|
registerRuntimeCompiler(compileToFunction);
|
|
|
|
exports.BaseTransition = BaseTransition;
|
|
exports.Comment = Comment;
|
|
exports.Fragment = Fragment;
|
|
exports.KeepAlive = KeepAlive;
|
|
exports.Static = Static;
|
|
exports.Suspense = Suspense;
|
|
exports.Teleport = Teleport;
|
|
exports.Text = Text;
|
|
exports.Transition = Transition;
|
|
exports.TransitionGroup = TransitionGroup;
|
|
exports.callWithAsyncErrorHandling = callWithAsyncErrorHandling;
|
|
exports.callWithErrorHandling = callWithErrorHandling;
|
|
exports.camelize = camelize;
|
|
exports.capitalize = capitalize;
|
|
exports.cloneVNode = cloneVNode;
|
|
exports.compile = compileToFunction;
|
|
exports.computed = computed$1;
|
|
exports.createApp = createApp;
|
|
exports.createBlock = createBlock;
|
|
exports.createCommentVNode = createCommentVNode;
|
|
exports.createHydrationRenderer = createHydrationRenderer;
|
|
exports.createRenderer = createRenderer;
|
|
exports.createSSRApp = createSSRApp;
|
|
exports.createSlots = createSlots;
|
|
exports.createStaticVNode = createStaticVNode;
|
|
exports.createTextVNode = createTextVNode;
|
|
exports.createVNode = createVNode;
|
|
exports.customRef = customRef;
|
|
exports.defineAsyncComponent = defineAsyncComponent;
|
|
exports.defineComponent = defineComponent;
|
|
exports.getCurrentInstance = getCurrentInstance;
|
|
exports.getTransitionRawChildren = getTransitionRawChildren;
|
|
exports.h = h;
|
|
exports.handleError = handleError;
|
|
exports.hydrate = hydrate;
|
|
exports.initCustomFormatter = initCustomFormatter;
|
|
exports.inject = inject;
|
|
exports.isProxy = isProxy;
|
|
exports.isReactive = isReactive;
|
|
exports.isReadonly = isReadonly;
|
|
exports.isRef = isRef;
|
|
exports.isVNode = isVNode;
|
|
exports.markRaw = markRaw;
|
|
exports.mergeProps = mergeProps;
|
|
exports.nextTick = nextTick;
|
|
exports.onActivated = onActivated;
|
|
exports.onBeforeMount = onBeforeMount;
|
|
exports.onBeforeUnmount = onBeforeUnmount;
|
|
exports.onBeforeUpdate = onBeforeUpdate;
|
|
exports.onDeactivated = onDeactivated;
|
|
exports.onErrorCaptured = onErrorCaptured;
|
|
exports.onMounted = onMounted;
|
|
exports.onRenderTracked = onRenderTracked;
|
|
exports.onRenderTriggered = onRenderTriggered;
|
|
exports.onUnmounted = onUnmounted;
|
|
exports.onUpdated = onUpdated;
|
|
exports.openBlock = openBlock;
|
|
exports.popScopeId = popScopeId;
|
|
exports.provide = provide;
|
|
exports.proxyRefs = proxyRefs;
|
|
exports.pushScopeId = pushScopeId;
|
|
exports.queuePostFlushCb = queuePostFlushCb;
|
|
exports.reactive = reactive;
|
|
exports.readonly = readonly;
|
|
exports.ref = ref;
|
|
exports.registerRuntimeCompiler = registerRuntimeCompiler;
|
|
exports.render = render;
|
|
exports.renderList = renderList;
|
|
exports.renderSlot = renderSlot;
|
|
exports.resolveComponent = resolveComponent;
|
|
exports.resolveDirective = resolveDirective;
|
|
exports.resolveDynamicComponent = resolveDynamicComponent;
|
|
exports.resolveTransitionHooks = resolveTransitionHooks;
|
|
exports.setBlockTracking = setBlockTracking;
|
|
exports.setDevtoolsHook = setDevtoolsHook;
|
|
exports.setTransitionHooks = setTransitionHooks;
|
|
exports.shallowReactive = shallowReactive;
|
|
exports.shallowReadonly = shallowReadonly;
|
|
exports.shallowRef = shallowRef;
|
|
exports.ssrContextKey = ssrContextKey;
|
|
exports.ssrUtils = ssrUtils;
|
|
exports.toDisplayString = toDisplayString;
|
|
exports.toHandlerKey = toHandlerKey;
|
|
exports.toHandlers = toHandlers;
|
|
exports.toRaw = toRaw;
|
|
exports.toRef = toRef;
|
|
exports.toRefs = toRefs;
|
|
exports.transformVNodeArgs = transformVNodeArgs;
|
|
exports.triggerRef = triggerRef;
|
|
exports.unref = unref;
|
|
exports.useCssModule = useCssModule;
|
|
exports.useCssVars = useCssVars;
|
|
exports.useSSRContext = useSSRContext;
|
|
exports.useTransitionState = useTransitionState;
|
|
exports.vModelCheckbox = vModelCheckbox;
|
|
exports.vModelDynamic = vModelDynamic;
|
|
exports.vModelRadio = vModelRadio;
|
|
exports.vModelSelect = vModelSelect;
|
|
exports.vModelText = vModelText;
|
|
exports.vShow = vShow;
|
|
exports.version = version;
|
|
exports.warn = warn;
|
|
exports.watch = watch;
|
|
exports.watchEffect = watchEffect;
|
|
exports.withCtx = withCtx;
|
|
exports.withDirectives = withDirectives;
|
|
exports.withKeys = withKeys;
|
|
exports.withModifiers = withModifiers;
|
|
exports.withScopeId = withScopeId;
|
|
|
|
return exports;
|
|
|
|
}({}));
|
|
|