905 lines
30 KiB
JavaScript
905 lines
30 KiB
JavaScript
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import { EMPTY_OBJ, isArray, isMap, isIntegerKey, isSymbol, extend, hasOwn, isObject, hasChanged, makeMap, capitalize, toRawType, def, isFunction, NOOP } from '@vue/shared';
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const targetMap = new WeakMap();
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const effectStack = [];
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let activeEffect;
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const ITERATE_KEY = Symbol((process.env.NODE_ENV !== 'production') ? 'iterate' : '');
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const MAP_KEY_ITERATE_KEY = Symbol((process.env.NODE_ENV !== 'production') ? 'Map key iterate' : '');
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function isEffect(fn) {
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return fn && fn._isEffect === true;
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}
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function effect(fn, options = EMPTY_OBJ) {
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if (isEffect(fn)) {
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fn = fn.raw;
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}
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const effect = createReactiveEffect(fn, options);
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if (!options.lazy) {
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effect();
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}
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return effect;
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}
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function stop(effect) {
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if (effect.active) {
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cleanup(effect);
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if (effect.options.onStop) {
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effect.options.onStop();
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}
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effect.active = false;
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}
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}
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let uid = 0;
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function createReactiveEffect(fn, options) {
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const effect = function reactiveEffect() {
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if (!effect.active) {
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return fn();
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}
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if (!effectStack.includes(effect)) {
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cleanup(effect);
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try {
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enableTracking();
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effectStack.push(effect);
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activeEffect = effect;
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return fn();
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}
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finally {
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effectStack.pop();
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resetTracking();
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activeEffect = effectStack[effectStack.length - 1];
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}
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}
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};
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effect.id = uid++;
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effect.allowRecurse = !!options.allowRecurse;
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effect._isEffect = true;
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effect.active = true;
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effect.raw = fn;
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effect.deps = [];
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effect.options = options;
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return effect;
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}
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function cleanup(effect) {
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const { deps } = effect;
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if (deps.length) {
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for (let i = 0; i < deps.length; i++) {
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deps[i].delete(effect);
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}
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deps.length = 0;
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}
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}
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let shouldTrack = true;
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const trackStack = [];
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function pauseTracking() {
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trackStack.push(shouldTrack);
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shouldTrack = false;
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}
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function enableTracking() {
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trackStack.push(shouldTrack);
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shouldTrack = true;
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}
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function resetTracking() {
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const last = trackStack.pop();
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shouldTrack = last === undefined ? true : last;
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}
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function track(target, type, key) {
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if (!shouldTrack || activeEffect === undefined) {
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return;
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}
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let depsMap = targetMap.get(target);
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if (!depsMap) {
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targetMap.set(target, (depsMap = new Map()));
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}
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let dep = depsMap.get(key);
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if (!dep) {
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depsMap.set(key, (dep = new Set()));
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}
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if (!dep.has(activeEffect)) {
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dep.add(activeEffect);
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activeEffect.deps.push(dep);
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if ((process.env.NODE_ENV !== 'production') && activeEffect.options.onTrack) {
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activeEffect.options.onTrack({
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effect: activeEffect,
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target,
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type,
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key
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});
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}
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}
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}
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function trigger(target, type, key, newValue, oldValue, oldTarget) {
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const depsMap = targetMap.get(target);
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if (!depsMap) {
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// never been tracked
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return;
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}
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const effects = new Set();
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const add = (effectsToAdd) => {
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if (effectsToAdd) {
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effectsToAdd.forEach(effect => {
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if (effect !== activeEffect || effect.allowRecurse) {
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effects.add(effect);
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}
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});
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}
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};
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if (type === "clear" /* CLEAR */) {
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// collection being cleared
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// trigger all effects for target
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depsMap.forEach(add);
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}
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else if (key === 'length' && isArray(target)) {
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depsMap.forEach((dep, key) => {
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if (key === 'length' || key >= newValue) {
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add(dep);
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}
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});
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}
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else {
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// schedule runs for SET | ADD | DELETE
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if (key !== void 0) {
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add(depsMap.get(key));
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}
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// also run for iteration key on ADD | DELETE | Map.SET
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switch (type) {
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case "add" /* ADD */:
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if (!isArray(target)) {
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add(depsMap.get(ITERATE_KEY));
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if (isMap(target)) {
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add(depsMap.get(MAP_KEY_ITERATE_KEY));
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}
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}
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else if (isIntegerKey(key)) {
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// new index added to array -> length changes
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add(depsMap.get('length'));
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}
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break;
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case "delete" /* DELETE */:
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if (!isArray(target)) {
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add(depsMap.get(ITERATE_KEY));
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if (isMap(target)) {
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add(depsMap.get(MAP_KEY_ITERATE_KEY));
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}
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}
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break;
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case "set" /* SET */:
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if (isMap(target)) {
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add(depsMap.get(ITERATE_KEY));
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}
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break;
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}
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}
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const run = (effect) => {
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if ((process.env.NODE_ENV !== 'production') && effect.options.onTrigger) {
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effect.options.onTrigger({
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effect,
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target,
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key,
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type,
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newValue,
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oldValue,
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oldTarget
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});
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}
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if (effect.options.scheduler) {
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effect.options.scheduler(effect);
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}
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else {
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effect();
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}
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};
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effects.forEach(run);
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}
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const isNonTrackableKeys = /*#__PURE__*/ makeMap(`__proto__,__v_isRef,__isVue`);
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const builtInSymbols = new Set(Object.getOwnPropertyNames(Symbol)
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.map(key => Symbol[key])
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.filter(isSymbol));
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const get = /*#__PURE__*/ createGetter();
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const shallowGet = /*#__PURE__*/ createGetter(false, true);
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const readonlyGet = /*#__PURE__*/ createGetter(true);
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const shallowReadonlyGet = /*#__PURE__*/ createGetter(true, true);
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const arrayInstrumentations = /*#__PURE__*/ createArrayInstrumentations();
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function createArrayInstrumentations() {
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const instrumentations = {};
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['includes', 'indexOf', 'lastIndexOf'].forEach(key => {
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instrumentations[key] = function (...args) {
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const arr = toRaw(this);
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for (let i = 0, l = this.length; i < l; i++) {
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track(arr, "get" /* GET */, i + '');
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}
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// we run the method using the original args first (which may be reactive)
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const res = arr[key](...args);
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if (res === -1 || res === false) {
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// if that didn't work, run it again using raw values.
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return arr[key](...args.map(toRaw));
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}
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else {
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return res;
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}
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};
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});
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['push', 'pop', 'shift', 'unshift', 'splice'].forEach(key => {
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instrumentations[key] = function (...args) {
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pauseTracking();
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const res = toRaw(this)[key].apply(this, args);
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resetTracking();
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return res;
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};
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});
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return instrumentations;
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}
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function createGetter(isReadonly = false, shallow = false) {
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return function get(target, key, receiver) {
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if (key === "__v_isReactive" /* IS_REACTIVE */) {
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return !isReadonly;
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}
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else if (key === "__v_isReadonly" /* IS_READONLY */) {
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return isReadonly;
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}
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else if (key === "__v_raw" /* RAW */ &&
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receiver ===
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(isReadonly
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? shallow
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? shallowReadonlyMap
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: readonlyMap
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: shallow
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? shallowReactiveMap
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: reactiveMap).get(target)) {
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return target;
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}
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const targetIsArray = isArray(target);
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if (!isReadonly && targetIsArray && hasOwn(arrayInstrumentations, key)) {
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return Reflect.get(arrayInstrumentations, key, receiver);
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}
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const res = Reflect.get(target, key, receiver);
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if (isSymbol(key) ? builtInSymbols.has(key) : isNonTrackableKeys(key)) {
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return res;
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}
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if (!isReadonly) {
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track(target, "get" /* GET */, key);
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}
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if (shallow) {
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return res;
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}
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if (isRef(res)) {
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// ref unwrapping - does not apply for Array + integer key.
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const shouldUnwrap = !targetIsArray || !isIntegerKey(key);
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return shouldUnwrap ? res.value : res;
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}
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if (isObject(res)) {
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// Convert returned value into a proxy as well. we do the isObject check
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// here to avoid invalid value warning. Also need to lazy access readonly
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// and reactive here to avoid circular dependency.
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return isReadonly ? readonly(res) : reactive(res);
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}
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return res;
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};
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}
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const set = /*#__PURE__*/ createSetter();
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const shallowSet = /*#__PURE__*/ createSetter(true);
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function createSetter(shallow = false) {
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return function set(target, key, value, receiver) {
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let oldValue = target[key];
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if (!shallow) {
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value = toRaw(value);
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oldValue = toRaw(oldValue);
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if (!isArray(target) && isRef(oldValue) && !isRef(value)) {
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oldValue.value = value;
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return true;
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}
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}
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const hadKey = isArray(target) && isIntegerKey(key)
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? Number(key) < target.length
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: hasOwn(target, key);
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const result = Reflect.set(target, key, value, receiver);
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// don't trigger if target is something up in the prototype chain of original
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if (target === toRaw(receiver)) {
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if (!hadKey) {
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trigger(target, "add" /* ADD */, key, value);
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}
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else if (hasChanged(value, oldValue)) {
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trigger(target, "set" /* SET */, key, value, oldValue);
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}
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}
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return result;
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};
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}
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function deleteProperty(target, key) {
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const hadKey = hasOwn(target, key);
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const oldValue = target[key];
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const result = Reflect.deleteProperty(target, key);
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if (result && hadKey) {
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trigger(target, "delete" /* DELETE */, key, undefined, oldValue);
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}
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return result;
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}
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function has(target, key) {
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const result = Reflect.has(target, key);
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if (!isSymbol(key) || !builtInSymbols.has(key)) {
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track(target, "has" /* HAS */, key);
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}
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return result;
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}
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function ownKeys(target) {
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track(target, "iterate" /* ITERATE */, isArray(target) ? 'length' : ITERATE_KEY);
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return Reflect.ownKeys(target);
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}
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const mutableHandlers = {
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get,
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set,
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deleteProperty,
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has,
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ownKeys
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};
|
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const readonlyHandlers = {
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get: readonlyGet,
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set(target, key) {
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if ((process.env.NODE_ENV !== 'production')) {
|
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console.warn(`Set operation on key "${String(key)}" failed: target is readonly.`, target);
|
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}
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return true;
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||
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},
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deleteProperty(target, key) {
|
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if ((process.env.NODE_ENV !== 'production')) {
|
||
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console.warn(`Delete operation on key "${String(key)}" failed: target is readonly.`, target);
|
||
|
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}
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return true;
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||
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}
|
||
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};
|
||
|
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const shallowReactiveHandlers = /*#__PURE__*/ extend({}, mutableHandlers, {
|
||
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get: shallowGet,
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||
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set: shallowSet
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||
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});
|
||
|
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// Props handlers are special in the sense that it should not unwrap top-level
|
||
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// refs (in order to allow refs to be explicitly passed down), but should
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||
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// retain the reactivity of the normal readonly object.
|
||
|
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const shallowReadonlyHandlers = /*#__PURE__*/ extend({}, readonlyHandlers, {
|
||
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get: shallowReadonlyGet
|
||
|
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});
|
||
|
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|
||
|
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const toReactive = (value) => isObject(value) ? reactive(value) : value;
|
||
|
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const toReadonly = (value) => isObject(value) ? readonly(value) : value;
|
||
|
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const toShallow = (value) => value;
|
||
|
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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) {
|
||
|
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!isReadonly && track(rawTarget, "get" /* GET */, key);
|
||
|
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}
|
||
|
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!isReadonly && track(rawTarget, "get" /* GET */, rawKey);
|
||
|
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const { has } = getProto(rawTarget);
|
||
|
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const wrap = isShallow ? toShallow : isReadonly ? toReadonly : toReactive;
|
||
|
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if (has.call(rawTarget, key)) {
|
||
|
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return wrap(target.get(key));
|
||
|
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}
|
||
|
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else if (has.call(rawTarget, rawKey)) {
|
||
|
|
return wrap(target.get(rawKey));
|
||
|
|
}
|
||
|
|
else if (target !== rawTarget) {
|
||
|
|
// #3602 readonly(reactive(Map))
|
||
|
|
// ensure that the nested reactive `Map` can do tracking for itself
|
||
|
|
target.get(key);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
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(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;
|
||
|
|
};
|
||
|
|
}
|
||
|
|
function createInstrumentations() {
|
||
|
|
const mutableInstrumentations = {
|
||
|
|
get(key) {
|
||
|
|
return get$1(this, key);
|
||
|
|
},
|
||
|
|
get size() {
|
||
|
|
return size(this);
|
||
|
|
},
|
||
|
|
has: has$1,
|
||
|
|
add,
|
||
|
|
set: set$1,
|
||
|
|
delete: deleteEntry,
|
||
|
|
clear,
|
||
|
|
forEach: createForEach(false, false)
|
||
|
|
};
|
||
|
|
const shallowInstrumentations = {
|
||
|
|
get(key) {
|
||
|
|
return get$1(this, key, false, true);
|
||
|
|
},
|
||
|
|
get size() {
|
||
|
|
return size(this);
|
||
|
|
},
|
||
|
|
has: has$1,
|
||
|
|
add,
|
||
|
|
set: set$1,
|
||
|
|
delete: deleteEntry,
|
||
|
|
clear,
|
||
|
|
forEach: createForEach(false, true)
|
||
|
|
};
|
||
|
|
const readonlyInstrumentations = {
|
||
|
|
get(key) {
|
||
|
|
return get$1(this, key, true);
|
||
|
|
},
|
||
|
|
get size() {
|
||
|
|
return size(this, true);
|
||
|
|
},
|
||
|
|
has(key) {
|
||
|
|
return has$1.call(this, key, true);
|
||
|
|
},
|
||
|
|
add: createReadonlyMethod("add" /* ADD */),
|
||
|
|
set: createReadonlyMethod("set" /* SET */),
|
||
|
|
delete: createReadonlyMethod("delete" /* DELETE */),
|
||
|
|
clear: createReadonlyMethod("clear" /* CLEAR */),
|
||
|
|
forEach: createForEach(true, false)
|
||
|
|
};
|
||
|
|
const 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);
|
||
|
|
});
|
||
|
|
return [
|
||
|
|
mutableInstrumentations,
|
||
|
|
readonlyInstrumentations,
|
||
|
|
shallowInstrumentations,
|
||
|
|
shallowReadonlyInstrumentations
|
||
|
|
];
|
||
|
|
}
|
||
|
|
const [mutableInstrumentations, readonlyInstrumentations, shallowInstrumentations, shallowReadonlyInstrumentations] = /* #__PURE__*/ createInstrumentations();
|
||
|
|
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: /*#__PURE__*/ createInstrumentationGetter(false, false)
|
||
|
|
};
|
||
|
|
const shallowCollectionHandlers = {
|
||
|
|
get: /*#__PURE__*/ createInstrumentationGetter(false, true)
|
||
|
|
};
|
||
|
|
const readonlyCollectionHandlers = {
|
||
|
|
get: /*#__PURE__*/ createInstrumentationGetter(true, false)
|
||
|
|
};
|
||
|
|
const shallowReadonlyCollectionHandlers = {
|
||
|
|
get: /*#__PURE__*/ 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(value, _shallow = false) {
|
||
|
|
this._shallow = _shallow;
|
||
|
|
this.__v_isRef = true;
|
||
|
|
this._rawValue = _shallow ? value : toRaw(value);
|
||
|
|
this._value = _shallow ? value : convert(value);
|
||
|
|
}
|
||
|
|
get value() {
|
||
|
|
track(toRaw(this), "get" /* GET */, 'value');
|
||
|
|
return this._value;
|
||
|
|
}
|
||
|
|
set value(newVal) {
|
||
|
|
newVal = this._shallow ? newVal : toRaw(newVal);
|
||
|
|
if (hasChanged(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);
|
||
|
|
}
|
||
|
|
|
||
|
|
export { ITERATE_KEY, computed, customRef, effect, enableTracking, isProxy, isReactive, isReadonly, isRef, markRaw, pauseTracking, proxyRefs, reactive, readonly, ref, resetTracking, shallowReactive, shallowReadonly, shallowRef, stop, toRaw, toRef, toRefs, track, trigger, triggerRef, unref };
|