Function collectStoredAnnotations

packages/mobx/src/api/decorators.ts:70–81

(target)

 * Collects annotations from prototypes and stores them on target (instance)
 */
export function collectStoredAnnotations(target): AnnotationsMap<any, any> {
    if (!hasProp(target, storedAnnotationsSymbol)) {
        // if (__DEV__ && !target[storedAnnotationsSymbol]) {
        //     die(
        //         `No annotations were passed to makeObservable, but no decorated members have been found either`
        //     )
        // }
        // We need a copy as we will remove annotation from the list once it's applied.
        addHiddenProp(target, storedAnnotationsSymbol, { ...target[storedAnnotationsSymbol] })
    }
    return target[storedAnnotationsSymbol]
}

export function is20223Decorator(context): context is DecoratorContext {
    return typeof context == "object" && typeof context["kind"] == "string"