Function getMetadataFromDecorator

packages/decorators/src/utils.ts:185–196

(
  target: T & Dictionary & { [MetadataStorage.PATH_SYMBOL]?: string },
)

/** Retrieves or creates the metadata object for a decorated entity class. */
export function getMetadataFromDecorator<T = any>(
  target: T & Dictionary & { [MetadataStorage.PATH_SYMBOL]?: string },
): EntityMetadata<T> {
  if (!Object.hasOwn(target, MetadataStorage.PATH_SYMBOL)) {
    Object.defineProperty(target, MetadataStorage.PATH_SYMBOL, {
      value: lookupPathFromDecorator(target.name),
      writable: true,
    });
  }

  return MetadataStorage.getMetadata(target.name, target[MetadataStorage.PATH_SYMBOL]!);
}