import { isSymbol, extend, isMap, isObject, toRawType, def, isArray, isString, isFunction, isPromise, toHandlerKey, remove, EMPTY_OBJ, camelize, capitalize, normalizeClass, normalizeStyle, isOn, NOOP, isGloballyWhitelisted, isIntegerKey, hasOwn, hasChanged, invokeArrayFns, makeMap, isSet, NO, toNumber, hyphenate, isReservedProp, EMPTY_ARR, toTypeString } from '@vue/shared';
export { camelize } from '@vue/shared';
const ON_ERROR = 'onError';
const targetMap = new WeakMap();
const effectStack = [];
let activeEffect;
const ITERATE_KEY = Symbol((process.env.NODE_ENV !== 'production') ? 'iterate' : '');
const MAP_KEY_ITERATE_KEY = Symbol((process.env.NODE_ENV !== 'production') ? '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 ((process.env.NODE_ENV !== 'production') && 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 ((process.env.NODE_ENV !== 'production') && 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 isNonTrackableKeys = /*#__PURE__*/ makeMap(`__proto__,__v_isRef,__isVue`);
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
? shallow
? shallowReadonlyMap
: readonlyMap
: shallow
? shallowReactiveMap
: reactiveMap).get(target)) {
return target;
}
const targetIsArray = isArray(target);
if (!isReadonly && targetIsArray && hasOwn(arrayInstrumentations, key)) {
return Reflect.get(arrayInstrumentations, key, receiver);
}
const res = Reflect.get(target, key, receiver);
if (isSymbol(key)
? builtInSymbols.has(key)
: isNonTrackableKeys(key)) {
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$1 = /*#__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: set$1,
deleteProperty,
has,
ownKeys
};
const readonlyHandlers = {
get: readonlyGet,
set(target, key) {
if ((process.env.NODE_ENV !== 'production')) {
console.warn(`Set operation on key "${String(key)}" failed: target is readonly.`, target);
}
return true;
},
deleteProperty(target, key) {
if ((process.env.NODE_ENV !== 'production')) {
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 = isShallow ? toShallow : isReadonly ? toReadonly : 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);
if (!hadKey) {
target.add(value);
trigger(target, "add" /* ADD */, value, value);
}
return this;
}
function set$1$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 if ((process.env.NODE_ENV !== 'production')) {
checkIdentityKeys(target, has, key);
}
const oldValue = get.call(target, key);
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 this;
}
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 if ((process.env.NODE_ENV !== 'production')) {
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 = (process.env.NODE_ENV !== 'production')
? isMap(target)
? new Map(target)
: new Set(target)
: undefined;
// 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 = isShallow ? toShallow : isReadonly ? toReadonly : 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 = isShallow ? toShallow : isReadonly ? toReadonly : 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) {
if ((process.env.NODE_ENV !== 'production')) {
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$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$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 shallowReadonlyInstrumentations = {
get(key) {
return get$1(this, key, true, 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, true)
};
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);
shallowReadonlyInstrumentations[method] = createIterableMethod(method, true, true);
});
function createInstrumentationGetter(isReadonly, shallow) {
const instrumentations = shallow
? isReadonly
? shallowReadonlyInstrumentations
: 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)
};
const shallowReadonlyCollectionHandlers = {
get: createInstrumentationGetter(true, true)
};
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 shallowReactiveMap = new WeakMap();
const readonlyMap = new WeakMap();
const shallowReadonlyMap = 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, reactiveMap);
}
/**
* Return a shallowly-reactive copy of the original object, where only the root
* level properties are reactive. It also does not auto-unwrap refs (even at the
* root level).
*/
function shallowReactive(target) {
return createReactiveObject(target, false, shallowReactiveHandlers, shallowCollectionHandlers, shallowReactiveMap);
}
/**
* Creates a readonly copy of the original object. Note the returned copy is not
* made reactive, but `readonly` can be called on an already reactive object.
*/
function readonly(target) {
return createReactiveObject(target, true, readonlyHandlers, readonlyCollectionHandlers, readonlyMap);
}
/**
* Returns 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, shallowReadonlyCollectionHandlers, shallowReadonlyMap);
}
function createReactiveObject(target, isReadonly, baseHandlers, collectionHandlers, proxyMap) {
if (!isObject(target)) {
if ((process.env.NODE_ENV !== 'production')) {
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 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', (process.env.NODE_ENV !== 'production') ? ref.value : void 0);
}
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 ((process.env.NODE_ENV !== 'production') && !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() {
// the computed ref may get wrapped by other proxies e.g. readonly() #3376
const self = toRaw(this);
if (self._dirty) {
self._value = this.effect();
self._dirty = false;
}
track(self, "get" /* GET */, 'value');
return self._value;
}
set value(newValue) {
this._setter(newValue);
}
}
function computed(getterOrOptions) {
let getter;
let setter;
if (isFunction(getterOrOptions)) {
getter = getterOrOptions;
setter = (process.env.NODE_ENV !== 'production')
? () => {
console.warn('Write operation failed: computed value is readonly');
}
: NOOP;
}
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 = (process.env.NODE_ENV !== 'production') ? ErrorTypeStrings[type] || type : type; // fixed by xxxxxxx
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);
}
// fixed by xxxxxx
function logError(err, type, contextVNode, throwInDev = true) {
if ((process.env.NODE_ENV !== 'production')) {
const info = ErrorTypeStrings[type] || type; // fixed by xxxxxx
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);
}
}
else {
// recover in prod to reduce the impact on end-user
console.error(err);
}
}
let isFlushing = false;
let isFlushPending = false;
// fixed by xxxxxx
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;
}
// #2768
// Use binary-search to find a suitable position in the queue,
// so that the queue maintains the increasing order of job's id,
// which can prevent the job from being skipped and also can avoid repeated patching.
function findInsertionIndex(job) {
// the start index should be `flushIndex + 1`
let start = flushIndex + 1;
let end = queue.length;
const jobId = getId(job);
while (start < end) {
const middle = (start + end) >>> 1;
const middleJobId = getId(queue[middle]);
middleJobId < jobId ? (start = middle + 1) : (end = middle);
}
return start;
}
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) {
const pos = findInsertionIndex(job);
if (pos > -1) {
queue.splice(pos, 0, job);
}
else {
queue.push(job);
}
queueFlush();
}
}
function queueFlush() {
if (!isFlushing && !isFlushPending) {
isFlushPending = true;
currentFlushPromise = resolvedPromise.then(flushJobs);
}
}
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;
if ((process.env.NODE_ENV !== 'production')) {
seen = seen || new Map();
}
for (preFlushIndex = 0; preFlushIndex < activePreFlushCbs.length; preFlushIndex++) {
if ((process.env.NODE_ENV !== 'production')) {
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;
if ((process.env.NODE_ENV !== 'production')) {
seen = seen || new Map();
}
activePostFlushCbs.sort((a, b) => getId(a) - getId(b));
for (postFlushIndex = 0; postFlushIndex < activePostFlushCbs.length; postFlushIndex++) {
if ((process.env.NODE_ENV !== 'production')) {
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;
if ((process.env.NODE_ENV !== 'production')) {
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.
queue.sort((a, b) => getId(a) - getId(b));
try {
for (flushIndex = 0; flushIndex < queue.length; flushIndex++) {
const job = queue[flushIndex];
if (job) {
if ((process.env.NODE_ENV !== 'production')) {
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);
}
}
}
function emit(instance, event, ...rawArgs) {
const props = instance.vnode.props || EMPTY_OBJ;
if ((process.env.NODE_ENV !== 'production')) {
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 = `${modelArg === 'modelValue' ? 'model' : modelArg}Modifiers`;
const { number, trim } = props[modifiersKey] || EMPTY_OBJ;
if (trim) {
args = rawArgs.map(a => a.trim());
}
else if (number) {
args = rawArgs.map(toNumber);
}
}
if ((process.env.NODE_ENV !== 'production') || false) ;
if ((process.env.NODE_ENV !== 'production')) {
const lowerCaseEvent = event.toLowerCase();
if (lowerCaseEvent !== event && props[toHandlerKey(lowerCaseEvent)]) {
warn(`Event "${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 (__VUE_OPTIONS_API__ && !isFunction(comp)) {
const extendEmits = (raw) => {
const normalizedFromExtend = normalizeEmitsOptions(raw, appContext, true);
if (normalizedFromExtend) {
hasExtends = true;
extend(normalized, normalizedFromExtend);
}
};
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.slice(2).replace(/Once$/, '');
return (hasOwn(options, key[0].toLowerCase() + key.slice(1)) ||
hasOwn(options, hyphenate(key)) ||
hasOwn(options, key));
}
let isRenderingCompiledSlot = 0;
const setCompiledSlotRendering = (n) => (isRenderingCompiledSlot += n);
/**
* mark the current rendering instance for asset resolution (e.g.
* resolveComponent, resolveDirective) during render
*/
let currentRenderingInstance = null;
let currentScopeId = null;
function markAttrsAccessed() {
}
function initProps(instance, rawProps, isStateful, // result of bitwise flag comparison
isSSR = false) {
const props = {};
const attrs = {};
// def(attrs, InternalObjectKey, 1) // fixed by xxxxxx
def(attrs, '__vInternal', 1);
instance.propsDefaults = Object.create(null);
setFullProps(instance, rawProps, props, attrs);
// validation
if ((process.env.NODE_ENV !== 'production')) {
validateProps(rawProps || {}, 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 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)) {
const { propsDefaults } = instance;
if (key in propsDefaults) {
value = propsDefaults[key];
}
else {
setCurrentInstance(instance);
value = propsDefaults[key] = 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 (__VUE_OPTIONS_API__ && !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 ((process.env.NODE_ENV !== 'production') && !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 ((process.env.NODE_ENV !== 'production') && !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 if ((process.env.NODE_ENV !== 'production')) {
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(rawProps, props, instance) {
const resolvedValues = toRaw(props);
const options = instance.propsOptions[0];
for (const key in options) {
let opt = options[key];
if (opt == null)
continue;
validateProp(key, resolvedValues[key], opt, !hasOwn(rawProps, key) && !hasOwn(rawProps, hyphenate(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,BigInt');
/**
* 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 if ((process.env.NODE_ENV !== 'production')) {
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().` +
(``));
}
}
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 ((process.env.NODE_ENV !== 'production') && !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 ((process.env.NODE_ENV !== 'production') && !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 */, [
instance && instance.proxy
]);
}
else {
(process.env.NODE_ENV !== 'production') && warnInvalidSource(s);
}
});
}
else if (isFunction(source)) {
if (cb) {
// getter with cb
getter = () => callWithErrorHandling(source, instance, 2 /* WATCH_GETTER */, [
instance && instance.proxy
]);
}
else {
// no cb -> simple effect
getter = () => {
if (instance && instance.isUnmounted) {
return;
}
if (cleanup) {
cleanup();
}
return callWithAsyncErrorHandling(source, instance, 3 /* WATCH_CALLBACK */, [onInvalidate]);
};
}
}
else {
getter = NOOP;
(process.env.NODE_ENV !== 'production') && warnInvalidSource(source);
}
if (cb && deep) {
const baseGetter = getter;
getter = () => traverse(baseGetter());
}
let cleanup;
let 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, instance);
// 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;
}
const isKeepAlive = (vnode) => vnode.type.__isKeepAlive;
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);
}
/**
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) {
{
(process.env.NODE_ENV !== 'production') && warn(`withDirectives can only be used inside render functions.`);
return vnode;
}
}
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;
// fixed by xxxxxx
function createAppAPI() {
return function createApp(rootComponent, rootProps = null) {
if (rootProps != null && !isObject(rootProps)) {
(process.env.NODE_ENV !== 'production') && warn(`root props passed to app.mount() must be an object.`);
rootProps = null;
}
const context = createAppContext();
const installedPlugins = new Set();
// fixed by xxxxxx
// 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) {
if ((process.env.NODE_ENV !== 'production')) {
warn(`app.config cannot be replaced. Modify individual options instead.`);
}
},
use(plugin, ...options) {
if (installedPlugins.has(plugin)) {
(process.env.NODE_ENV !== 'production') && 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 if ((process.env.NODE_ENV !== 'production')) {
warn(`A plugin must either be a function or an object with an "install" ` +
`function.`);
}
return app;
},
mixin(mixin) {
if (__VUE_OPTIONS_API__) {
if (!context.mixins.includes(mixin)) {
context.mixins.push(mixin);
// window mixin with props/emits de-optimizes props/emits
// normalization caching.
if (mixin.props || mixin.emits) {
context.deopt = true;
}
}
else if ((process.env.NODE_ENV !== 'production')) {
warn('Mixin has already been applied to target app' +
(mixin.name ? `: ${mixin.name}` : ''));
}
}
else if ((process.env.NODE_ENV !== 'production')) {
warn('Mixins are only available in builds supporting Options API');
}
return app;
},
component(name, component) {
if ((process.env.NODE_ENV !== 'production')) {
validateComponentName(name, context.config);
}
if (!component) {
return context.components[name];
}
if ((process.env.NODE_ENV !== 'production') && context.components[name]) {
warn(`Component "${name}" has already been registered in target app.`);
}
context.components[name] = component;
return app;
},
directive(name, directive) {
if ((process.env.NODE_ENV !== 'production')) {
validateDirectiveName(name);
}
if (!directive) {
return context.directives[name];
}
if ((process.env.NODE_ENV !== 'production') && context.directives[name]) {
warn(`Directive "${name}" has already been registered in target app.`);
}
context.directives[name] = directive;
return app;
},
// fixed by xxxxxx
mount() { },
// fixed by xxxxxx
unmount() { },
provide(key, value) {
if ((process.env.NODE_ENV !== 'production') && key in context.provides) {
warn(`App already provides property with key "${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;
};
}
// implementation, close to no-op
function defineComponent(options) {
return isFunction(options) ? { setup: options, name: options.name } : options;
}
const queuePostRenderEffect = queuePostFlushCb;
const isTeleport = (type) => type.__isTeleport;
const COMPONENTS = 'components';
const DIRECTIVES = 'directives';
const NULL_DYNAMIC_COMPONENT = Symbol();
/**
* @private
*/
function resolveDirective(name) {
return resolveAsset(DIRECTIVES, name);
}
// implementation
function resolveAsset(type, name, warnMissing = true, maybeSelfReference = false) {
const instance = currentInstance;
if (instance) {
const Component = instance.type;
// explicit self name has highest priority
if (type === COMPONENTS) {
const selfName = getComponentName(Component);
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) ||
// window registration
resolve(instance.appContext[type], name);
if (!res && maybeSelfReference) {
// fallback to implicit self-reference
return Component;
}
if ((process.env.NODE_ENV !== 'production') && warnMissing && !res) {
warn(`Failed to resolve ${type.slice(0, -1)}: ${name}`);
}
return res;
}
else if ((process.env.NODE_ENV !== 'production')) {
warn(`resolve${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((process.env.NODE_ENV !== 'production') ? 'Fragment' : undefined);
const Text = Symbol((process.env.NODE_ENV !== 'production') ? 'Text' : undefined);
const Comment = Symbol((process.env.NODE_ENV !== 'production') ? 'Comment' : undefined);
Symbol((process.env.NODE_ENV !== 'production') ? 'Static' : undefined);
let currentBlock = null;
function isVNode(value) {
return value ? value.__v_isVNode === true : false;
}
const createVNodeWithArgsTransform = (...args) => {
return _createVNode(...(args));
};
const InternalObjectKey = `__vInternal`;
const normalizeKey = ({ key }) => key != null ? key : null;
const normalizeRef = ({ ref }) => {
return (ref != null
? isString(ref) || isRef(ref) || isFunction(ref)
? { i: currentRenderingInstance, r: ref }
: ref
: null);
};
const createVNode = ((process.env.NODE_ENV !== 'production')
? createVNodeWithArgsTransform
: _createVNode);
function _createVNode(type, props = null, children = null, patchFlag = 0, dynamicProps = null, isBlockNode = false) {
if (!type || type === NULL_DYNAMIC_COMPONENT) {
if ((process.env.NODE_ENV !== 'production') && !type) {
warn(`Invalid vnode type when creating vnode: ${type}.`);
}
type = Comment;
}
if (isVNode(type)) {
// createVNode receiving an existing vnode. This happens in cases like
//
// #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 */
: isTeleport(type)
? 64 /* TELEPORT */
: isObject(type)
? 4 /* STATEFUL_COMPONENT */
: isFunction(type)
? 2 /* FUNCTIONAL_COMPONENT */
: 0;
if ((process.env.NODE_ENV !== 'production') && 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,
slotScopeIds: null,
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 ((process.env.NODE_ENV !== 'production') && vnode.key !== vnode.key) {
warn(`VNode created with invalid key (NaN). VNode type:`, vnode.type);
}
normalizeChildren(vnode, children);
if (// 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, children } = 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
// 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,
slotScopeIds: vnode.slotScopeIds,
children: (process.env.NODE_ENV !== 'production') && patchFlag === -1 /* HOISTED */ && isArray(children)
? children.map(deepCloneVNode)
: 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
};
}
/**
* Dev only, for HMR of hoisted vnodes reused in v-for
* https://github.com/vitejs/vite/issues/2022
*/
function deepCloneVNode(vnode) {
const cloned = cloneVNode(vnode);
if (isArray(vnode.children)) {
cloned.children = vnode.children.map(deepCloneVNode);
}
return cloned;
}
/**
* @private
*/
function createTextVNode(text = ' ', flag = 0) {
return createVNode(Text, null, text, flag);
}
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) {
if ((process.env.NODE_ENV !== 'production')) {
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 if ((process.env.NODE_ENV !== 'production')) {
warn(`injection "${String(key)}" not found.`);
}
}
else if ((process.env.NODE_ENV !== 'production')) {
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 shouldCacheAccess = true;
function applyOptions$1(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,
// public API
expose } = 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) {
shouldCacheAccess = false;
callSyncHook('beforeCreate', "bc" /* BEFORE_CREATE */, options, instance, globalMixins);
shouldCacheAccess = true;
// window mixins are applied first
applyMixins(instance, globalMixins, deferredData, deferredWatch, deferredProvide);
}
// extending a base component...
if (extendsOptions) {
applyOptions$1(instance, extendsOptions, deferredData, deferredWatch, deferredProvide, true);
}
// local mixins
if (mixins) {
applyMixins(instance, mixins, deferredData, deferredWatch, deferredProvide);
}
const checkDuplicateProperties = (process.env.NODE_ENV !== 'production') ? createDuplicateChecker() : null;
if ((process.env.NODE_ENV !== 'production')) {
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)
// fixed by xxxxxx
if (!__VUE_CREATED_DEFERRED__ && injectOptions) {
if (isArray(injectOptions)) {
for (let i = 0; i < injectOptions.length; i++) {
const key = injectOptions[i];
ctx[key] = inject(key);
if ((process.env.NODE_ENV !== 'production')) {
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);
}
if ((process.env.NODE_ENV !== 'production')) {
checkDuplicateProperties("Inject" /* INJECT */, key);
}
}
}
}
if (methods) {
for (const key in methods) {
const methodHandler = methods[key];
if (isFunction(methodHandler)) {
// In dev mode, we use the `createRenderContext` function to define methods to the proxy target,
// and those are read-only but reconfigurable, so it needs to be redefined here
if ((process.env.NODE_ENV !== 'production')) {
Object.defineProperty(ctx, key, {
value: methodHandler.bind(publicThis),
configurable: true,
enumerable: true,
writable: true
});
}
else {
ctx[key] = methodHandler.bind(publicThis);
}
if ((process.env.NODE_ENV !== 'production')) {
checkDuplicateProperties("Methods" /* METHODS */, key);
}
}
else if ((process.env.NODE_ENV !== 'production')) {
warn(`Method "${key}" has type "${typeof methodHandler}" in the component definition. ` +
`Did you reference the function correctly?`);
}
}
}
if (!asMixin) {
if (deferredData.length) {
deferredData.forEach(dataFn => resolveData(instance, dataFn, publicThis));
}
if (dataOptions) {
// @ts-ignore dataOptions is not fully type safe
resolveData(instance, dataOptions, publicThis);
}
if ((process.env.NODE_ENV !== 'production')) {
const rawData = toRaw(instance.data);
for (const key in rawData) {
checkDuplicateProperties("Data" /* DATA */, key);
// expose data on ctx during dev
if (key[0] !== '$' && 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 ((process.env.NODE_ENV !== 'production') && get === NOOP) {
warn(`Computed property "${key}" has no getter.`);
}
const set = !isFunction(opt) && isFunction(opt.set)
? opt.set.bind(publicThis)
: (process.env.NODE_ENV !== 'production')
? () => {
warn(`Write operation failed: computed property "${key}" is readonly.`);
}
: NOOP;
const c = computed$1({
get,
set
});
Object.defineProperty(ctx, key, {
enumerable: true,
configurable: true,
get: () => c.value,
set: v => (c.value = v)
});
if ((process.env.NODE_ENV !== 'production')) {
checkDuplicateProperties("Computed" /* COMPUTED */, key);
}
}
}
if (watchOptions) {
deferredWatch.push(watchOptions);
}
if (!asMixin && deferredWatch.length) {
deferredWatch.forEach(watchOptions => {
for (const key in watchOptions) {
createWatcher(watchOptions[key], ctx, publicThis, key);
}
});
}
// fixed by xxxxxx
if (!__VUE_CREATED_DEFERRED__) {
if (provideOptions) {
deferredProvide.push(provideOptions);
}
if (!asMixin && deferredProvide.length) {
deferredProvide.forEach(provideOptions => {
const provides = isFunction(provideOptions)
? provideOptions.call(publicThis)
: provideOptions;
Reflect.ownKeys(provides).forEach(key => {
provide(key, provides[key]);
});
});
}
}
// asset options.
// To reduce memory usage, only components with mixins or extends will have
// resolved asset registry attached to instance.
if (asMixin) {
if (components) {
extend(instance.components ||
(instance.components = extend({}, instance.type.components)), components);
}
if (directives) {
extend(instance.directives ||
(instance.directives = extend({}, instance.type.directives)), directives);
}
}
// fixed by xxxxxx
// lifecycle options
if (__VUE_CREATED_DEFERRED__) {
ctx.$callSyncHook = function (name) {
return callSyncHook(name, "c" /* CREATED */, options, instance, globalMixins);
};
}
else 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 ((process.env.NODE_ENV !== 'production') && beforeDestroy) {
warn(`\`beforeDestroy\` has been renamed to \`beforeUnmount\`.`);
}
if (beforeUnmount) {
onBeforeUnmount(beforeUnmount.bind(publicThis));
}
if ((process.env.NODE_ENV !== 'production') && destroyed) {
warn(`\`destroyed\` has been renamed to \`unmounted\`.`);
}
if (unmounted) {
onUnmounted(unmounted.bind(publicThis));
}
if (isArray(expose)) {
if (!asMixin) {
if (expose.length) {
const exposed = instance.exposed || (instance.exposed = proxyRefs({}));
expose.forEach(key => {
exposed[key] = toRef(publicThis, key);
});
}
else if (!instance.exposed) {
instance.exposed = EMPTY_OBJ;
}
}
else if ((process.env.NODE_ENV !== 'production')) {
warn(`The \`expose\` option is ignored when used in mixins.`);
}
}
// fixed by xxxxxx
if (instance.ctx.$onApplyOptions) {
instance.ctx.$onApplyOptions(options, instance, publicThis);
}
}
function callSyncHook(name, type, options, instance, globalMixins) {
for (let i = 0; i < globalMixins.length; i++) {
callHookWithMixinAndExtends(name, type, globalMixins[i], instance);
}
callHookWithMixinAndExtends(name, type, options, instance);
}
function callHookWithMixinAndExtends(name, type, options, instance) {
const { extends: base, mixins } = options;
const selfHook = options[name];
if (base) {
callHookWithMixinAndExtends(name, type, base, instance);
}
if (mixins) {
for (let i = 0; i < mixins.length; i++) {
callHookWithMixinAndExtends(name, type, mixins[i], instance);
}
}
if (selfHook) {
callWithAsyncErrorHandling(selfHook.bind(instance.proxy), instance, type);
}
}
function applyMixins(instance, mixins, deferredData, deferredWatch, deferredProvide) {
for (let i = 0; i < mixins.length; i++) {
applyOptions$1(instance, mixins[i], deferredData, deferredWatch, deferredProvide, true);
}
}
function resolveData(instance, dataFn, publicThis) {
if ((process.env.NODE_ENV !== 'production') && !isFunction(dataFn)) {
warn(`The data option must be a function. ` +
`Plain object usage is no longer supported.`);
}
shouldCacheAccess = false;
const data = dataFn.call(publicThis, publicThis);
shouldCacheAccess = true;
if ((process.env.NODE_ENV !== 'production') && isPromise(data)) {
warn(`data() returned a Promise - note data() cannot be async; If you ` +
`intend to perform data fetching before component renders, use ` +
`async setup() + .`);
}
if (!isObject(data)) {
(process.env.NODE_ENV !== 'production') && warn(`data() should return an object.`);
}
else if (instance.data === EMPTY_OBJ) {
instance.data = reactive(data);
}
else {
// existing data: this is a mixin or extends.
extend(instance.data, data);
}
}
function createWatcher(raw, ctx, publicThis, key) {
const getter = key.includes('.')
? createPathGetter(publicThis, key)
: () => publicThis[key];
if (isString(raw)) {
const handler = ctx[raw];
if (isFunction(handler)) {
watch(getter, handler);
}
else if ((process.env.NODE_ENV !== 'production')) {
warn(`Invalid watch handler specified by key "${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 if ((process.env.NODE_ENV !== 'production')) {
warn(`Invalid watch handler specified by key "${raw.handler}"`, handler);
}
}
}
else if ((process.env.NODE_ENV !== 'production')) {
warn(`Invalid watch option: "${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];
}
}
}
/**
* #2437 In Vue 3, functional components do not have a public instance proxy but
* they exist in the internal parent chain. For code that relies on traversing
* public $parent chains, skip functional ones and go to the parent instead.
*/
const getPublicInstance = (i) => {
if (!i)
return null;
if (isStatefulComponent(i))
return i.exposed ? i.exposed : i.proxy;
return getPublicInstance(i.parent);
};
const publicPropertiesMap = extend(Object.create(null), {
$: i => i,
$el: i => i.vnode.el,
$data: i => i.data,
$props: i => ((process.env.NODE_ENV !== 'production') ? shallowReadonly(i.props) : i.props),
$attrs: i => ((process.env.NODE_ENV !== 'production') ? shallowReadonly(i.attrs) : i.attrs),
$slots: i => ((process.env.NODE_ENV !== 'production') ? shallowReadonly(i.slots) : i.slots),
$refs: i => ((process.env.NODE_ENV !== 'production') ? shallowReadonly(i.refs) : i.refs),
$parent: i => getPublicInstance(i.parent),
$root: i => getPublicInstance(i.root),
$emit: i => i.emit,
$options: i => (__VUE_OPTIONS_API__ ? resolveMergedOptions(i) : i.type),
$forceUpdate: i => () => queueJob(i.update),
// $nextTick: i => nextTick.bind(i.proxy!), // fixed by xxxxxx
$watch: i => (__VUE_OPTIONS_API__ ? instanceWatch.bind(i) : NOOP)
});
const PublicInstanceProxyHandlers = {
get({ _: instance }, key) {
const { ctx, setupState, data, props, accessCache, type, appContext } = instance;
// let @vue/reactivity know it should never observe Vue public instances.
if (key === "__v_skip" /* SKIP */) {
return true;
}
// for internal formatters to know that this is a Vue instance
if ((process.env.NODE_ENV !== 'production') && key === '__isVue') {
return true;
}
// data / props / ctx
// This getter gets called for every property access on the render context
// during render and is a major hotspot. The most expensive part of this
// is the multiple hasOwn() calls. It's much faster to do a simple property
// access on a plain object, so we use an accessCache object (with null
// prototype) to memoize what access type a key corresponds to.
let normalizedProps;
if (key[0] !== '$') {
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 (!__VUE_OPTIONS_API__ || shouldCacheAccess) {
accessCache[key] = 4 /* OTHER */;
}
}
const publicGetter = publicPropertiesMap[key];
let cssModule, globalProperties;
// public $xxx properties
if (publicGetter) {
if (key === '$attrs') {
track(instance, "get" /* GET */, key);
(process.env.NODE_ENV !== 'production') && 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 `$`
accessCache[key] = 3 /* CONTEXT */;
return ctx[key];
}
else if (
// window properties
((globalProperties = appContext.config.globalProperties),
hasOwn(globalProperties, key))) {
return globalProperties[key];
}
else if ((process.env.NODE_ENV !== 'production') &&
currentRenderingInstance &&
(!isString(key) ||
// #1091 avoid internal isRef/isVNode checks on component instance leading
// to infinite warning loop
key.indexOf('__v') !== 0)) {
if (data !== EMPTY_OBJ &&
(key[0] === '$' || 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 if (instance === currentRenderingInstance) {
warn(`Property ${JSON.stringify(key)} was accessed during render ` +
`but is not defined on instance.`);
}
}
},
set({ _: instance }, key, value) {
const { data, setupState, ctx } = instance;
if (setupState !== EMPTY_OBJ && hasOwn(setupState, key)) {
setupState[key] = value;
}
else if (data !== EMPTY_OBJ && hasOwn(data, key)) {
data[key] = value;
}
else if (hasOwn(instance.props, key)) {
(process.env.NODE_ENV !== 'production') &&
warn(`Attempting to mutate prop "${key}". Props are readonly.`, instance);
return false;
}
if (key[0] === '$' && key.slice(1) in instance) {
(process.env.NODE_ENV !== 'production') &&
warn(`Attempting to mutate public property "${key}". ` +
`Properties starting with $ are reserved and readonly.`, instance);
return false;
}
else {
if ((process.env.NODE_ENV !== 'production') && 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));
}
};
if ((process.env.NODE_ENV !== 'production') && !false) {
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 ((process.env.NODE_ENV !== 'production') && !has && PublicInstanceProxyHandlers.has(_, key)) {
warn(`Property ${JSON.stringify(key)} should not start with _ which is a reserved prefix for Vue internals.`);
}
return has;
}
});
// In dev mode, the proxy target exposes the same properties as seen on `this`
// for easier console inspection. In prod mode it will be an empty object so
// these properties definitions can be skipped.
function createRenderContext(instance) {
const target = {};
// expose internal instance for proxy handlers
Object.defineProperty(target, `_`, {
configurable: true,
enumerable: false,
get: () => instance
});
// expose public properties
Object.keys(publicPropertiesMap).forEach(key => {
Object.defineProperty(target, key, {
configurable: true,
enumerable: false,
get: () => publicPropertiesMap[key](instance),
// intercepted by the proxy so no need for implementation,
// but needed to prevent set errors
set: NOOP
});
});
// expose window properties
const { globalProperties } = instance.appContext.config;
Object.keys(globalProperties).forEach(key => {
Object.defineProperty(target, key, {
configurable: true,
enumerable: false,
get: () => globalProperties[key],
set: NOOP
});
});
return target;
}
// dev only
function exposePropsOnRenderContext(instance) {
const { ctx, propsOptions: [propsOptions] } = instance;
if (propsOptions) {
Object.keys(propsOptions).forEach(key => {
Object.defineProperty(ctx, key, {
enumerable: true,
configurable: true,
get: () => instance.props[key],
set: NOOP
});
});
}
}
// dev only
function exposeSetupStateOnRenderContext(instance) {
const { ctx, setupState } = instance;
Object.keys(toRaw(setupState)).forEach(key => {
if (key[0] === '$' || 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,
exposed: 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,
// props default value
propsDefaults: EMPTY_OBJ,
// 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
};
if ((process.env.NODE_ENV !== 'production')) {
instance.ctx = createRenderContext(instance);
}
else {
instance.ctx = { _: instance };
}
instance.root = parent ? parent.root : instance;
instance.emit = emit.bind(null, 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);
}
}
function isStatefulComponent(instance) {
return instance.vnode.shapeFlag & 4 /* STATEFUL_COMPONENT */;
}
let isInSSRComponentSetup = false;
function setupComponent(instance, isSSR = false) {
isInSSRComponentSetup = isSSR;
const { props /*, children*/ } = instance.vnode;
const isStateful = isStatefulComponent(instance);
initProps(instance, props, isStateful, isSSR);
// initSlots(instance, children) // fixed by xxxxxx
const setupResult = isStateful
? setupStatefulComponent(instance, isSSR)
: undefined;
isInSSRComponentSetup = false;
return setupResult;
}
function setupStatefulComponent(instance, isSSR) {
const Component = instance.type;
if ((process.env.NODE_ENV !== 'production')) {
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);
if ((process.env.NODE_ENV !== 'production')) {
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 */, [(process.env.NODE_ENV !== 'production') ? shallowReadonly(instance.props) : 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, isSSR);
})
.catch(e => {
handleError(e, instance, 0 /* SETUP_FUNCTION */);
});
}
else if ((process.env.NODE_ENV !== 'production')) {
warn(`setup() returned a Promise, but the version of Vue you are using ` +
`does not support it yet.`);
}
}
else {
handleSetupResult(instance, setupResult, isSSR);
}
}
else {
finishComponentSetup(instance, isSSR);
}
}
function handleSetupResult(instance, setupResult, isSSR) {
if (isFunction(setupResult)) {
// setup returned an inline render function
{
instance.render = setupResult;
}
}
else if (isObject(setupResult)) {
if ((process.env.NODE_ENV !== 'production') && 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.
if ((process.env.NODE_ENV !== 'production') || false) {
instance.devtoolsRawSetupState = setupResult;
}
instance.setupState = proxyRefs(setupResult);
if ((process.env.NODE_ENV !== 'production')) {
exposeSetupStateOnRenderContext(instance);
}
}
else if ((process.env.NODE_ENV !== 'production') && setupResult !== undefined) {
warn(`setup() should return an object. Received: ${setupResult === null ? 'null' : typeof setupResult}`);
}
finishComponentSetup(instance, isSSR);
}
function finishComponentSetup(instance, isSSR) {
const Component = instance.type;
// template / render function normalization
if (!instance.render) {
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
if (__VUE_OPTIONS_API__) {
currentInstance = instance;
pauseTracking();
applyOptions$1(instance, Component);
resetTracking();
currentInstance = null;
}
// warn missing template/render
// the runtime compilation of template in SSR is done by server-render
if ((process.env.NODE_ENV !== 'production') && !Component.render && instance.render === NOOP && !isSSR) {
/* istanbul ignore if */
if (Component.template) {
warn(`Component provided template option but ` +
`runtime compilation is not supported in this build of Vue.` +
(` Configure your bundler to alias "vue" to "vue/dist/vue.esm-bundler.js".`
) /* should not happen */);
}
else {
warn(`Component is missing template or render function.`);
}
}
}
const attrHandlers = {
get: (target, key) => {
if ((process.env.NODE_ENV !== 'production')) ;
return target[key];
},
set: () => {
warn(`setupContext.attrs is readonly.`);
return false;
},
deleteProperty: () => {
warn(`setupContext.attrs is readonly.`);
return false;
}
};
function createSetupContext(instance) {
const expose = exposed => {
if ((process.env.NODE_ENV !== 'production') && instance.exposed) {
warn(`expose() should be called only once per setup().`);
}
instance.exposed = proxyRefs(exposed);
};
if ((process.env.NODE_ENV !== 'production')) {
// 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);
},
expose
});
}
else {
return {
attrs: instance.attrs,
slots: instance.slots,
emit: instance.emit,
expose
};
}
}
// record effects created during a component's setup() so that they can be
// stopped when the component unmounts
function recordInstanceBoundEffect(effect, instance = currentInstance) {
if (instance) {
(instance.effects || (instance.effects = [])).push(effect);
}
}
const classifyRE = /(?:^|[-_])(\w)/g;
const classify = (str) => str.replace(classifyRE, c => c.toUpperCase()).replace(/[-_]/g, '');
function getComponentName(Component) {
return isFunction(Component)
? Component.displayName || Component.name
: Component.name;
}
/* istanbul ignore next */
function formatComponentName(instance, Component, isRoot = false) {
let name = getComponentName(Component);
if (!name && Component.__file) {
const match = Component.__file.match(/([^/\\]+)\.\w+$/);
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
function defineProps() {
if ((process.env.NODE_ENV !== 'production')) {
warn(`defineProps() is a compiler-hint helper that is only usable inside ` +
`