 }
 
 #endif  // !swift(>=4.1)
-
-/// Helper function to wrap the results of `ObjCPromise.when` with the safe `When` enum.
-public func asWhen<Value>(_ value: AnyObject) -> When<Value> {
-  switch value {
-  case let error as NSError:
-    return .error(error)
-  case let value:
-    guard let value = Promise<Value>.asValue(value) else { preconditionFailure() }
-    return .value(value)
-  }
-}

    }
  }
}

/// Equality operators for `When`.
#if !swift(>=4.1)

  }
}

// MARK: - Conversion

/// Helper functions that facilitates conversion of `Promise.when` results to the results normally
/// expected from `ObjCPromise.when`.
///
