Warnings due to `@frozen` attribute on non-public enums with Xcode 16 Beta 3

[ojun9]

Description

Using Xcode 16 Beta 3, the generated Type.swift file now shows multiple warnings due to the @frozen attribute being applied to non-public enums. The Type.swift file is generated with non-public enums that include the @frozen attribute. For example:

@frozen internal enum Output: Sendable, Hashable { /* ... */ }

This results in the following warning:

@frozen has no effect on non-public enums

Reproduction

To reproduce the issue, it is necessary to generate the Type.swift file.

openapi-generator-config.yaml

generate:
  - types
  - client

Package version(s)

1.2.1

Expected behavior

The @frozen attribute should not be applied to non-public enums to avoid unnecessary warnings.

Environment

• Swift version Info:
  • Apple Swift version 6.0 (swiftlang-6.0.0.5.15 clang-1600.0.22.6)
• Xcode version Info:
  • Xcode 16 Beta 3

Additional information

This issue arises from a new warning introduced in Xcode 16 Beta 3.

[czechboy0]

Thanks for reporting this, @ojun9! I think the fix here is what you suggested - only generate the frozen attribute when the access modifier is public or package. Would you consider opening a PR for that?

[ojun9]

Thank you for the feedback! I’ll work on the fix over the weekend and open a PR to ensure the frozen attribute is only generated when the access modifier is public or package.

[czechboy0]

Looks like #587 is already fixing this issue

[ojun9]

@czechboy0

Since there were no changes in the PR https://github.com/apple/swift-openapi-generator/pull/587, I created a new PR https://github.com/apple/swift-openapi-generator/pull/595. Please let me know if there are any issues!

[czechboy0]

Fixed and released in 1.3.0: https://github.com/apple/swift-openapi-generator/releases/tag/1.3.0