Sending params to a partial when using Phlex with Hanami 2

[choallin]

I'm using Phlex with a new Hanami 2 app. Hanami has a quite great DI system. This system gives me an instance of my dependencies when I load them into my classes.
Since I'm getting an already instantiated object I can't pass args to the object without doing something weird.
I'm rendering my partials with the help of the render method. To pass the arguments down to my object I created a monkey patch that uses the already existing kwargs parameter of the render method and passes this to the components call method.

def render(renderable, *args, **kwargs, &block)
	case renderable
	when Phlex::HTML
		renderable.call(@_target, view_context: @_view_context, parent: self, **kwargs, &block) # HERE
	when Class
		if renderable < Phlex::HTML
			renderable.call(@_target, view_context: @_view_context, parent: self, **kwargs, &block) # AND HERE
		end
	else
		raise ArgumentError, "You can't render a #{renderable}."
	end

	nil
end

Is there a interest to merge this into Phlex? If not, could you please provide another way of passing arguments to my objects beside instantiation.

[joeldrapper]

How would you pick up the new arguments on call? Would you override that in view that's being rendered?

I haven't benchmarked this, but I’m cautious that picking up *args and **kwargs splats is slow and will allocate a new Array and Hash each time, even if no additional arguments or keyword arguments are provided.

Do you have an example of how you would use this feature? I can’t see how it would be better than just passing these arguments to the initialiser.