Function observer

source/decorator.tsx:137–141

(func: T, _?: ClassDecoratorContext)

): AwaitedComponent<T>;
export function observer<T extends ObservableComponent>(func: T): AwaitedComponent<T>;
export function observer<T extends ObservableComponent>(func: T, _?: ClassDecoratorContext) {
    return isHTMLElementClass(func)
        ? wrapClass(func)
        : (props: object) => <FunctionCell component={(() => func(props)) as FC | AFC} />;
}

/**
 * `accessor` decorator of MobX `@observable` for HTML attributes