[typescript] allOf fails with chained inheritance

[MattiasMartens]

Bug Report Checklist

• Have you provided a full/minimal spec to reproduce the issue?
• Have you validated the input using an OpenAPI validator (example)?
• Have you tested with the latest master to confirm the issue still exists?
• Have you searched for related issues/PRs?
• What's the actual output vs expected output?

Description

Using openapigenerator 6.0.1, with generator "typescript".

If a spec uses allOf to specify an inheritance chain, the child in the inheritance chain will have its own properties and the properties of its most distant parent, but not the properties of its closest parent.

In the provided example, the instance of class Child would have Child.ChildAttribute and Child.GrandparentAttribute but not Child.ParentAttribute.

openapi-generator version

6.0.1

OpenAPI declaration file content or url

https://gist.github.com/MattiasMartens/49415a0fe5c3922500424d61c5a3c97a

Related issues/PRs

First raised in #927.

[bk-one]

+1

[jbezuk]

I think this thread may be related: #10125

From my point of view, the workaround options are: a) use discriminators on all inherited types, or b) revert to v4.3.1 where inheritance was still supported without discriminators

though personally I agree with others in that thread stating that discriminators should not really be required in this use case.

[wing328]

We've added a rule REF_AS_PARENT_IN_ALLOF in OpenAPI Normalizer to handle such case: https://github.com/OpenAPITools/openapi-generator/blob/master/docs/customization.md#openapi-normalizer

Please give it a try when you've time.

[Hiller]

We've added a rule REF_AS_PARENT_IN_ALLOF in OpenAPI Normalizer to handle such case: https://github.com/OpenAPITools/openapi-generator/blob/master/docs/customization.md#openapi-normalizer

Please give it a try when you've time.

doesn't work with typescript-angular.
command is java -jar 6.6.0.jar generate -i swagger.json -g typescript-angular -o module --openapi-normalizer REF_AS_PARENT_IN_ALLOF=true --additional-properties=useSingleRequestParameter=true

you can put anything for normalizer options without a singly warn from it. Seems like normalizer is not applied at all

[Silverium]

My team also has issues with the allOf operator. For us it's generating empty interfaces! So something like

paths:
  /cobrand/v1/public/cobrands:
    get:
      allOf:
        - summary: Get cobrands...
        - description: User Session identifier ...

ends up being an ugly and empty get:

  "/cobrand/v1/public/cobrands": {
    get: {
    };
  };

[PetrusHahol]

How can I set up REF_AS_PARENT_IN_ALLOF=true in my pom.xml for plugin configuration?