Generics in aliaced types

[nafetsrybak]

Hi,

I'm currently working on a PHP project and I'm having trouble using generics in aliased types with PHPStan.
I'm not sure if this is even possible or if I'm doing something wrong.

https://phpstan.org/r/7f1a54f4-bbd7-455c-b9f5-9eced44e19fe
I use PHPStan's dumpType function to output the type of the parameter, I'm getting
"Dumped type: array{prop1: string, prop2: TData (class Boo, argument)}"
instead of
"Dumped type: array{prop1: string, prop2: string (class Boo, argument)}".

I'm not sure if I'm using generics and type aliases correctly or if there's a limitation with PHPStan's type system that I'm not aware of.
Any help or guidance on this issue would be greatly appreciated.

[ondrejmirtes]

Unfortunately aliases don't support referencing types from @template. One reason for that is that type aliases can also be imported to other files where it wouldn't make any sense anymore.