[Bug] Circularly references when using discriminator

[alSergey]

Describe the bug

When using discliminator, cyclic dependencies appear in types. The problem appeared in version 13.0.0, where support was added.

[email protected]

There was no discriminator support in this version, so the problem does not occur.

[email protected]

This version added support for discriminator, but it does not work correctly. This causes circular type references.

[email protected]

This library supports discriminator and there are no problems with cyclic type references.

Reproduction

Open StackBlitz:

• [email protected] - generated/Api12.ts
• [email protected] - generated/Api13.ts
• [email protected] - generated/Api.ts

[MiracleUFO]

Facing same issue with 13.0.0

[brianguertin]

I was facing a similar issue, and narrowed it down to the order of the schemas in the API spec.

The parent schema has to appear BEFORE the schema that references it (with $ref). If the parent appears after, the generated types don't use the "Base" type, and instead inserts the circular reference.

[pablo-olmedo-poex]

This is what's preventing me from migrating to v13 now that #564 and #1417 have been resolved.

Maybe @smorimoto can help us 🤞.

Thanks in advance!