[BUG] Xcode 12 Compiler Error "FormViewController"

[omerozk]

Describe the bug

On Xcode 12 we are facing a build error as we are implementing Adyen and another lib called Eureka (https://github.com/xmartlabs/Eureka).

Both lib are exposing a class called FormViewController. With the new build process of Xcode 12, ObjC generated headers are now entering in conflict which make the compilation fail.

Here you can find more information about this issue: https://developer.apple.com/forums/thread/658012
similar issue on Kingfisher library (conflict with alamofire SessionDelegate): onevcat/Kingfisher#1530

To Reproduce
Steps to reproduce the behavior:

1. launch Xcode 12
2. Add Pods Adyen and Eureka to your podfile
3. install pods
4. build your project
5. this following error occur on complilation:

FormViewController has different definitions in different modules; first difference is definition in module 'Adyen.Swift' found method

Expected behavior
Successful build!

Smartphone (please complete the following information):

• Device: [iPhone XS]
• OS: [14]
• SDK Version [3.7.0]

Additional context

2 ways to fix this:

• Do not generate headers for ObjC. SWIFT_INSTALL_OBJC_HEADER = NO
• Set an explicit prefix for ObjC which will resolve namespacing

@objc(AdyenFormViewController)
public final class FormViewController { ... }

I think the most adapted approach, if ObjC support is required, will be the second approach to fix this issue

[mohammedDehairy]

Hi @omerozk ,

Thanks for the report!.

We'll look into it and fix it in the next release.

[descorp]

Hey @omerozk

This PR should resolve it.

[descorp]

3.8.0 is released!

I am going to close this ticket for now.
Feel free to respond in this thread or provide any additional feedback!