Function prepareMetadataContext

packages/decorators/src/utils.ts:107–127

(
  context:
    | ClassFieldDecoratorContext<T>
    | ClassGetterDecoratorContext<T>
    | ClassSetterDecoratorContext<T>
    | ClassAccessorDecoratorContext<T>
    | ClassMethodDecoratorContext<T>,
  kind?: ReferenceKind,
)

 * exist for some base entity.
 */
export function prepareMetadataContext<T>(
  context:
    | ClassFieldDecoratorContext<T>
    | ClassGetterDecoratorContext<T>
    | ClassSetterDecoratorContext<T>
    | ClassAccessorDecoratorContext<T>
    | ClassMethodDecoratorContext<T>,
  kind?: ReferenceKind,
): EntityMetadata<T> {
  const meta = context.metadata as unknown as EntityMetadata<T>;

  if (!Object.hasOwn(meta, 'properties')) {
    meta.properties = { ...meta.properties };
  }

  if (kind) {
    validateSingleDecorator(meta, context.name as string, kind);
  }

  return meta;
}

/**
 * Uses some dark magic to get source path to caller where decorator is used.