Realm-cocoa: Use both RealmSwift and Objective-C Realm in same project

[M-Hamed]

I'm trying to use both RealmSwift and Objective-C Realm in same project

I'm working on a project written in Objective-C, and I'm migrating it to Swift part by part
objective-c models are based on Realm Objective-C, I want to make new models written in swift to use RealmSwift, I know I can use swift with Objective-C Realm but I don't want to
my plan is by the end of the migrating from objective-c to swift I will delete Realm Objective-C and use RealmSwift only
any ideas on how I can achieve that ?

[bdash]

What you're asking for is not supported. To quote from the first paragraph of the Realm Swift documentation:

If you’re looking to use Realm from Objective‑C, or from mixed Objective‑C & Swift apps, please see Realm Objective‑C instead. The Realm Objective‑C and Realm Swift APIs are not interoperable and using them together is not supported.

I'd suggest using Realm Objective-C from Swift as you migrate your codebase to Swift, and then switching over to Realm Swift once your model classes are no longer accessed from Objective-C.