Final type for dev::Transform

[johnlepikhin]

Hi there,

I'm trying to implement an external generator of middlewares. Somewhere in modules, Vec<Transform> is generated and then passed into a function which will build the application. But I gave up to construct some final type of Transform<> with all correct type arguments. Can you give some example? Solution based on .wrap_fn() or experimental .from_fn() also would be helpful.

Thank you!

[johnlepikhin]

It seems every Transform<> has its own unique type parameters, and each .wrap() returns some new type of App<>. Thus, probably it's impossible to implement such architecture. Am I right?

[robjtede]

It should be somewhat possible to build this sort of architecture if you box everything to a homogenious type in the Vec. Maybe something similar to the Compat middleware wrapper.

I could be wrong and it's not possible right now though. Can you sort of write down what code you want to be able to write.