[Interest] Mysterious C++/QML compilation bug

[Alexander Dyagilev]

Please note, that this is not something occasional. I'm able to 100% 
reproduce this issue.

I.e. :

1. I modify C++ header (adding some enum value in the middle of the enum).
2. Perform full rebuild of the app.
3. Launch app - it's broken.
4. Make fake modifications in QML files using enum (e.g. insert a space 
and then save file).
5. Build and launch app - all is OK.

On 6/12/2023 5:20 PM, Alexander Dyagilev wrote:
> Hello,
>
> In C++ I'm using Q_NAMESPACE + Q_ENUM_NS and export enum to QML (in 
> QML I use it like MyCoolEnum.MyCoolValue).
>
> I've found a weird issue: I've inserted a new value in the middle of 
> my enum. And all was suddenly broken. I spent 1 hour trying to 
> understand what is going on.
>
> Full rebuild was not helping. Then, I just made fake modifications in 
> QML files which uses this enum - and all started working again!
>
> So, it appears that QML caches somehow somewhere old enum values and 
> does not want to refresh them even after the full rebuild of the app.
>
> Where are this cached files located? I was not able to find them 
> inside of the build directory, and this is weird too.
>