Hey, does anybody knows if there is a cleaner way ...

# spring

[sdeleuze]

Hey, does anybody knows if there is a cleaner way than what I did in https://github.com/spring-projects/spring-fu/blob/master/kofu/src/main/kotlin/org/springframework/fu/kofu/BeanDefinitionDslExtensions.kt (defining 22 reified overloaded methods from Function1 to Function22) to acheive reflection-less injection of parameters by type?

[Czar]

I do not know the answer to this question at the moment (but I'll do some research).
What I want to add though is that you are missing one in your current implementation: FunctionN
I also wonder if it can be used instead of Function1-Function22, its documentation says it is only for 23+ params, but I still wonder 🙂

[Czar]

Now that I've thought about this a bit, you cannot implement it for FunctionN with reified params 😞 because you cannot specify arbitrary number of type parameters for a generic function 😐

[sdeleuze]

Yes exactly

[sdeleuze]

One option could be to use Function with reflection

[Czar]

Yeah, looks like without reflection you have done the best that can be done.

[Czar]

That said, crossinline f: (Function1<A, T>) is equivalent to crossinline f: (A) -> T. Then you're free from using "glue" function interfaces at least

[Czar]

https://github.com/spring-projects/spring-fu/pull/196

[sdeleuze]

Merged thanks

[sdeleuze]

After discussion with Juergen I will integrate your reflectio-less variant in Spring Framework