Lint check for type mismatch of ComponentFactory/ViewModelFactory

[yamasa]

• If type Foo's companion object extends ComponentFactory or ViewModelFactory, its type parameter must be Foo.

I'd like to have a lint checker for the above rule.
That is, the lint checker reports mismatches like this:

class Foo {
    // snip...
    companion object : ComponentFactory<Bar>() { // <- WRONG!!
        override fun createComponent(context: Context): Bar = TODO()
    }
}

[dtvc87]

Right, it is definitely doable. We could also add a quick fix. So the type parameter gets replaced with Foo, what do you think?
What would be the severity level of this lint? I assume it would be error and not warning?

[yamasa]

@dtvc87
Thanks!

We could also add a quick fix. So the type parameter gets replaced with Foo, what do you think?

Yes, it should be replaced with Foo.

What would be the severity level of this lint? I assume it would be error and not warning?

I think it should be error.