Function createDecorator

packages/agent-core/src/di/instantiation.ts:65–96

(name: string)

}

export function createDecorator<T>(name: string): ServiceIdentifier<T> {
  const existing = _util.serviceIds.get(name);
  if (existing) {
    return existing as ServiceIdentifier<T>;
  }

  const id = function serviceDecorator(
    // eslint-disable-next-line @typescript-eslint/no-explicit-any
    target: any,
    _key: string | symbol | undefined,
    index: number,
  ): void {
    if (arguments.length !== 3) {
      throw new Error(
        '@IServiceName-decorator can only be used to decorate a parameter',
      );
    }
    storeServiceDependency(id, target, index);
  } as unknown as ServiceIdentifier<T>;

  Object.defineProperty(id, 'toString', {
    value: function toString(): string {
      return name;
    },
    enumerable: false,
    writable: false,
    configurable: false,
  });

  _util.serviceIds.set(name, id);
  return id;
}

export function refineServiceDecorator<T1, T extends T1>(
  serviceIdentifier: ServiceIdentifier<T1>,