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object-api.ts
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172 lines (165 loc) · 5.95 KB
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import {
$mobx,
IIsObservableObject,
IObservableArray,
ObservableMap,
ObservableObjectAdministration,
endBatch,
fail,
getAdministration,
invariant,
isObservableArray,
isObservableMap,
isObservableObject,
startBatch
} from "../internal"
export function keys<K>(map: ObservableMap<K, any>): ReadonlyArray<K>
export function keys<T>(ar: IObservableArray<T>): ReadonlyArray<number>
export function keys<T extends Object>(obj: T): ReadonlyArray<string>
export function keys(obj: any): any {
if (isObservableObject(obj)) {
return ((obj as any) as IIsObservableObject)[$mobx].getKeys()
}
if (isObservableMap(obj)) {
return Array.from(obj.keys())
}
if (isObservableArray(obj)) {
return obj.map((_, index) => index)
}
return fail(
process.env.NODE_ENV !== "production" &&
"'keys()' can only be used on observable objects, arrays and maps"
)
}
export function values<K, T>(map: ObservableMap<K, T>): ReadonlyArray<T>
export function values<T>(ar: IObservableArray<T>): ReadonlyArray<T>
export function values<T = any>(obj: T): ReadonlyArray<any>
export function values(obj: any): string[] {
if (isObservableObject(obj)) {
return keys(obj).map(key => obj[key])
}
if (isObservableMap(obj)) {
return keys(obj).map(key => obj.get(key))
}
if (isObservableArray(obj)) {
return obj.slice()
}
return fail(
process.env.NODE_ENV !== "production" &&
"'values()' can only be used on observable objects, arrays and maps"
)
}
export function entries<K, T>(map: ObservableMap<K, T>): ReadonlyArray<[K, T]>
export function entries<T>(ar: IObservableArray<T>): ReadonlyArray<[number, T]>
export function entries<T = any>(obj: T): ReadonlyArray<[string, any]>
export function entries(obj: any): any {
if (isObservableObject(obj)) {
return keys(obj).map(key => [key, obj[key]])
}
if (isObservableMap(obj)) {
return keys(obj).map(key => [key, obj.get(key)])
}
if (isObservableArray(obj)) {
return obj.map((key, index) => [index, key])
}
return fail(
process.env.NODE_ENV !== "production" &&
"'entries()' can only be used on observable objects, arrays and maps"
)
}
export function set<V>(obj: ObservableMap<string, V>, values: { [key: string]: V })
export function set<K, V>(obj: ObservableMap<K, V>, key: K, value: V)
export function set<T>(obj: IObservableArray<T>, index: number, value: T)
export function set<T extends Object>(obj: T, values: { [key: string]: any })
export function set<T extends Object>(obj: T, key: string, value: any)
export function set(obj: any, key: any, value?: any): void {
if (arguments.length === 2) {
startBatch()
const values = key
try {
for (let key in values) set(obj, key, values[key])
} finally {
endBatch()
}
return
}
if (isObservableObject(obj)) {
const adm = ((obj as any) as IIsObservableObject)[$mobx]
const existingObservable = adm.values.get(key)
if (existingObservable) {
adm.write(key, value)
} else {
adm.addObservableProp(key, value, adm.defaultEnhancer)
}
} else if (isObservableMap(obj)) {
obj.set(key, value)
} else if (isObservableArray(obj)) {
if (typeof key !== "number") key = parseInt(key, 10)
invariant(key >= 0, `Not a valid index: '${key}'`)
startBatch()
if (key >= obj.length) obj.length = key + 1
obj[key] = value
endBatch()
} else {
return fail(
process.env.NODE_ENV !== "production" &&
"'set()' can only be used on observable objects, arrays and maps"
)
}
}
export function remove<K, V>(obj: ObservableMap<K, V>, key: K)
export function remove<T>(obj: IObservableArray<T>, index: number)
export function remove<T extends Object>(obj: T, key: string)
export function remove(obj: any, key: any): void {
if (isObservableObject(obj)) {
;((obj as any) as IIsObservableObject)[$mobx].remove(key)
} else if (isObservableMap(obj)) {
obj.delete(key)
} else if (isObservableArray(obj)) {
if (typeof key !== "number") key = parseInt(key, 10)
invariant(key >= 0, `Not a valid index: '${key}'`)
obj.splice(key, 1)
} else {
return fail(
process.env.NODE_ENV !== "production" &&
"'remove()' can only be used on observable objects, arrays and maps"
)
}
}
export function has<K>(obj: ObservableMap<K, any>, key: K): boolean
export function has<T>(obj: IObservableArray<T>, index: number): boolean
export function has<T extends Object>(obj: T, key: string): boolean
export function has(obj: any, key: any): boolean {
if (isObservableObject(obj)) {
// return keys(obj).indexOf(key) >= 0
const adm = getAdministration(obj) as ObservableObjectAdministration
return adm.has(key)
} else if (isObservableMap(obj)) {
return obj.has(key)
} else if (isObservableArray(obj)) {
return key >= 0 && key < obj.length
} else {
return fail(
process.env.NODE_ENV !== "production" &&
"'has()' can only be used on observable objects, arrays and maps"
)
}
}
export function get<K, V>(obj: ObservableMap<K, V>, key: K): V | undefined
export function get<T>(obj: IObservableArray<T>, index: number): T | undefined
export function get<T extends Object>(obj: T, key: string): any
export function get(obj: any, key: any): any {
if (!has(obj, key)) return undefined
if (isObservableObject(obj)) {
return obj[key]
} else if (isObservableMap(obj)) {
return obj.get(key)
} else if (isObservableArray(obj)) {
return obj[key]
} else {
return fail(
process.env.NODE_ENV !== "production" &&
"'get()' can only be used on observable objects, arrays and maps"
)
}
}