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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 | 98x 98x 98x 98x 98x 1351x 1001x 1001x 1001x 98x 529x 529x 434x 434x 98x 4060x 98x 472x 98x 9x 481x 1x 480x 480x 480x 480x 480x 480x 1237x 1237x 502x 502x 488x 488x 488x 98x 2x 98x 376x 98x 374x 22x 22x 17x 17x 5x 98x 68x 1x 1x 1x 2x 1x 1x 1x 2x 1x 98x 1x 98x 5x 2x 5x 5x 6x 5x 8x 8x 8x 8x 23x 23x 4x 98x 9x 9x | import {
activeEffect,
shouldTrack,
trackEffects,
triggerEffects
} from './effect'
import { TrackOpTypes, TriggerOpTypes } from './operations'
import { isArray, hasChanged, IfAny } from '@vue/shared'
import { isProxy, toRaw, isReactive, toReactive } from './reactive'
import type { ShallowReactiveMarker } from './reactive'
import { CollectionTypes } from './collectionHandlers'
import { createDep, Dep } from './dep'
declare const RefSymbol: unique symbol
export interface Ref<T = any> {
value: T
/**
* Type differentiator only.
* We need this to be in public d.ts but don't want it to show up in IDE
* autocomplete, so we use a private Symbol instead.
*/
[RefSymbol]: true
}
type RefBase<T> = {
dep?: Dep
value: T
}
export function trackRefValue(ref: RefBase<any>) {
if (shouldTrack && activeEffect) {
ref = toRaw(ref)
if (__DEV__) {
trackEffects(ref.dep || (ref.dep = createDep()), {
target: ref,
type: TrackOpTypes.GET,
key: 'value'
})
} else E{
trackEffects(ref.dep || (ref.dep = createDep()))
}
}
}
export function triggerRefValue(ref: RefBase<any>, newVal?: any) {
ref = toRaw(ref)
if (ref.dep) {
if (__DEV__) {
triggerEffects(ref.dep, {
target: ref,
type: TriggerOpTypes.SET,
key: 'value',
newValue: newVal
})
} else E{
triggerEffects(ref.dep)
}
}
}
export function isRef<T>(r: Ref<T> | unknown): r is Ref<T>
export function isRef(r: any): r is Ref {
return !!(r && r.__v_isRef === true)
}
export function ref<T extends object>(
value: T
): [T] extends [Ref] ? T : Ref<UnwrapRef<T>>
export function ref<T>(value: T): Ref<UnwrapRef<T>>
export function ref<T = any>(): Ref<T | undefined>
export function ref(value?: unknown) {
return createRef(value, false)
}
declare const ShallowRefMarker: unique symbol
export type ShallowRef<T = any> = Ref<T> & { [ShallowRefMarker]?: true }
export function shallowRef<T extends object>(
value: T
): T extends Ref ? T : ShallowRef<T>
export function shallowRef<T>(value: T): ShallowRef<T>
export function shallowRef<T = any>(): ShallowRef<T | undefined>
export function shallowRef(value?: unknown) {
return createRef(value, true)
}
function createRef(rawValue: unknown, shallow: boolean) {
if (isRef(rawValue)) {
return rawValue
}
return new RefImpl(rawValue, shallow)
}
class RefImpl<T> {
private _value: T
private _rawValue: T
public dep?: Dep = undefined
public readonly __v_isRef = true
constructor(value: T, public readonly __v_isShallow: boolean) {
this._rawValue = __v_isShallow ? value : toRaw(value)
this._value = __v_isShallow ? value : toReactive(value)
}
get value() {
trackRefValue(this)
return this._value
}
set value(newVal) {
newVal = this.__v_isShallow ? newVal : toRaw(newVal)
if (hasChanged(newVal, this._rawValue)) {
this._rawValue = newVal
this._value = this.__v_isShallow ? newVal : toReactive(newVal)
triggerRefValue(this, newVal)
}
}
}
export function triggerRef(ref: Ref) {
triggerRefValue(ref, __DEV__ ? ref.value : void 0)
}
export function unref<T>(ref: T | Ref<T>): T {
return isRef(ref) ? (ref.value as any) : ref
}
const shallowUnwrapHandlers: ProxyHandler<any> = {
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)
}
}
}
export function proxyRefs<T extends object>(
objectWithRefs: T
): ShallowUnwrapRef<T> {
return isReactive(objectWithRefs)
? objectWithRefs
: new Proxy(objectWithRefs, shallowUnwrapHandlers)
}
export type CustomRefFactory<T> = (
track: () => void,
trigger: () => void
) => {
get: () => T
set: (value: T) => void
}
class CustomRefImpl<T> {
public dep?: Dep = undefined
private readonly _get: ReturnType<CustomRefFactory<T>>['get']
private readonly _set: ReturnType<CustomRefFactory<T>>['set']
public readonly __v_isRef = true
constructor(factory: CustomRefFactory<T>) {
const { get, set } = factory(
() => trackRefValue(this),
() => triggerRefValue(this)
)
this._get = get
this._set = set
}
get value() {
return this._get()
}
set value(newVal) {
this._set(newVal)
}
}
export function customRef<T>(factory: CustomRefFactory<T>): Ref<T> {
return new CustomRefImpl(factory) as any
}
export type ToRefs<T = any> = {
[K in keyof T]: ToRef<T[K]>
}
export function toRefs<T extends object>(object: T): ToRefs<T> {
if (__DEV__ && !isProxy(object)) {
console.warn(`toRefs() expects a reactive object but received a plain one.`)
}
const ret: any = isArray(object) ? new Array(object.length) : {}
for (const key in object) {
ret[key] = toRef(object, key)
}
return ret
}
class ObjectRefImpl<T extends object, K extends keyof T> {
public readonly __v_isRef = true
constructor(
private readonly _object: T,
private readonly _key: K,
private readonly _defaultValue?: T[K]
) {}
get value() {
const val = this._object[this._key]
return val === undefined ? (this._defaultValue as T[K]) : val
}
set value(newVal) {
this._object[this._key] = newVal
}
}
export type ToRef<T> = IfAny<T, Ref<T>, [T] extends [Ref] ? T : Ref<T>>
export function toRef<T extends object, K extends keyof T>(
object: T,
key: K
): ToRef<T[K]>
export function toRef<T extends object, K extends keyof T>(
object: T,
key: K,
defaultValue: T[K]
): ToRef<Exclude<T[K], undefined>>
export function toRef<T extends object, K extends keyof T>(
object: T,
key: K,
defaultValue?: T[K]
): ToRef<T[K]> {
const val = object[key]
return isRef(val)
? val
: (new ObjectRefImpl(object, key, defaultValue) as any)
}
// corner case when use narrows type
// Ex. type RelativePath = string & { __brand: unknown }
// RelativePath extends object -> true
type BaseTypes = string | number | boolean
/**
* This is a special exported interface for other packages to declare
* additional types that should bail out for ref unwrapping. For example
* \@vue/runtime-dom can declare it like so in its d.ts:
*
* ``` ts
* declare module '@vue/reactivity' {
* export interface RefUnwrapBailTypes {
* runtimeDOMBailTypes: Node | Window
* }
* }
* ```
*
* Note that api-extractor somehow refuses to include `declare module`
* augmentations in its generated d.ts, so we have to manually append them
* to the final generated d.ts in our build process.
*/
export interface RefUnwrapBailTypes {}
export type ShallowUnwrapRef<T> = {
[K in keyof T]: T[K] extends Ref<infer V>
? V
: // if `V` is `unknown` that means it does not extend `Ref` and is undefined
T[K] extends Ref<infer V> | undefined
? unknown extends V
? undefined
: V | undefined
: T[K]
}
export type UnwrapRef<T> = T extends ShallowRef<infer V>
? V
: T extends Ref<infer V>
? UnwrapRefSimple<V>
: UnwrapRefSimple<T>
export type UnwrapRefSimple<T> = T extends
| Function
| CollectionTypes
| BaseTypes
| Ref
| RefUnwrapBailTypes[keyof RefUnwrapBailTypes]
? T
: T extends Array<any>
? { [K in keyof T]: UnwrapRefSimple<T[K]> }
: T extends object & { [ShallowReactiveMarker]?: never }
? {
[P in keyof T]: P extends symbol ? T[P] : UnwrapRef<T[P]>
}
: T
|