Function intercept

packages/context/src/interceptor.ts:283–316

(...interceptorOrKeys: InterceptorOrKey[])

 * resolved to be interceptors
 */
export function intercept(...interceptorOrKeys: InterceptorOrKey[]) {
  return function interceptDecoratorForClassOrMethod(
    // Class or a prototype
    // eslint-disable-next-line @typescript-eslint/no-explicit-any
    target: any,
    method?: string,
    // Use `any` to for `TypedPropertyDescriptor`
    // See https://github.com/loopbackio/loopback-next/pull/2704
    // eslint-disable-next-line @typescript-eslint/no-explicit-any
    methodDescriptor?: TypedPropertyDescriptor<any>,
  ) {
    if (method && methodDescriptor) {
      // Method
      return InterceptMethodDecoratorFactory.createDecorator(
        INTERCEPT_METHOD_KEY,
        interceptorOrKeys,
        {decoratorName: '@intercept'},
      )(target, method, methodDescriptor!);
    }
    if (typeof target === 'function' && !method && !methodDescriptor) {
      // Class
      return InterceptClassDecoratorFactory.createDecorator(
        INTERCEPT_CLASS_KEY,
        interceptorOrKeys,
        {decoratorName: '@intercept'},
      )(target);
    }
    // Not on a class or method
    throw new Error(
      '@intercept cannot be used on a property: ' +
        DecoratorFactory.getTargetName(target, method, methodDescriptor),
    );
  };
}

/**
 * Invoke a method with the given context