refactor: simplify discriminatorFound logic and move it to the DiscriminatorUtils

[Mattias-Sehlstedt]

This PR simplifies the logic in the discriminatorFound method within class DefaultCodegen. It also moves the method to DiscriminatorUtils in order to reduce the overall size of DefaultCodegen and to centralize discriminator introspection into a single place.

Protected method getDiscriminatorSchema has also been removed from DefaultCodegen and made private in DiscriminatorUtils. This is technically a breaking change, but I would argue that it can be safely ignored since the method was very recently introduced by me. Its presence also no longer serves any purpose since it cannot act as a extension point for anything with the moving of discriminatorFound.

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Summary by cubic

Simplified discriminator detection and moved it from DefaultCodegen to DiscriminatorUtils to centralize logic and reduce DefaultCodegen size. No functional changes expected for generators.

• Refactors

  • Moved and simplified discriminatorFound into DiscriminatorUtils as discriminatorFound(OpenAPI, ...) and updated call sites in DefaultCodegen.
  • Removed DefaultCodegen#getDiscriminatorSchema; equivalent logic now lives as a private helper in DiscriminatorUtils.

• Migration

  • If you extended DefaultCodegen and used getDiscriminatorSchema, switch to DiscriminatorUtils.discriminatorFound(...) or DiscriminatorUtils.getDiscriminatorPropertyType(...) as needed.

^{Written for commit ce50154. Summary will update on new commits.}

[cubic-dev-ai]

1 issue found across 2 files

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