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59 lines (56 loc) · 1.79 KB
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import {
IArrayChange,
IArraySplice,
IComputedValue,
IMapDidChange,
IObjectDidChange,
IObservableArray,
IObservableValue,
IValueDidChange,
Lambda,
ObservableMap,
getAdministration
} from "../internal"
export function observe<T>(
value: IObservableValue<T> | IComputedValue<T>,
listener: (change: IValueDidChange<T>) => void,
fireImmediately?: boolean
): Lambda
export function observe<T>(
observableArray: IObservableArray<T>,
listener: (change: IArrayChange<T> | IArraySplice<T>) => void,
fireImmediately?: boolean
): Lambda
export function observe<K, V>(
observableMap: ObservableMap<K, V>,
listener: (change: IMapDidChange<K, V>) => void,
fireImmediately?: boolean
): Lambda
export function observe<K, V>(
observableMap: ObservableMap<K, V>,
property: K,
listener: (change: IValueDidChange<V>) => void,
fireImmediately?: boolean
): Lambda
export function observe(
object: Object,
listener: (change: IObjectDidChange) => void,
fireImmediately?: boolean
): Lambda
export function observe<T, K extends keyof T>(
object: T,
property: K,
listener: (change: IValueDidChange<T[K]>) => void,
fireImmediately?: boolean
): Lambda
export function observe(thing, propOrCb?, cbOrFire?, fireImmediately?): Lambda {
if (typeof cbOrFire === "function")
return observeObservableProperty(thing, propOrCb, cbOrFire, fireImmediately)
else return observeObservable(thing, propOrCb, cbOrFire)
}
function observeObservable(thing, listener, fireImmediately: boolean) {
return getAdministration(thing).observe(listener, fireImmediately)
}
function observeObservableProperty(thing, property, listener, fireImmediately: boolean) {
return getAdministration(thing, property).observe(listener, fireImmediately)
}