I cant seem to find a way to detect whenever a `KProperty1 r

Question

I cant seem to find a way to detect whenever a `KProperty1 returnType` is an Array type via reflection

diesieben07 · Answer

It seems like there is a bug with `Array lt T gt ` where `T` is a primitive For a `val foo Array lt Int gt ` `returnType classifier` gives `kotlin IntArray` but `Array lt Int gt class` gives `kotlin Array`

diesieben07 · Answer

I e a primitive array is reported by the return type even though it s an array of boxed ints

elect · Answer

uh isnt there any workaround at the moment to fix that

elect · Answer

that s critical for me

diesieben07 · Answer

Check for both `Array lt Int gt class` and `IntArray class` that should work

elect · Answer

what shall I check against in my `when`

elect · Answer

I need to distinguish everything when is a primitive or a plain field when is an array and which kind of array

diesieben07 · Answer

Do you need to distinguish between `Array lt Int gt ` and `IntArray` If so you ll probably have to go to Java reflection

elect · Answer

no I dont

elect · Answer

but I need to be able to fetch the items to write them to native direct buffers

diesieben07 · Answer

Then just grab the value in the field and do `is` checks on that

elect · Answer

ok but how can I detect in the first place if it is an array

diesieben07 · Answer

You mean before fetching the value

elect · Answer

yes

elect · Answer

check the code I posted in < C0922A726|general>

elect · Answer

this looks working `returnType jvmErasure java isArray`

diesieben07 · Answer

Yes but you ll then have to keep using java reflection `java lang reflect Array` to access it

diesieben07 · Answer

Because there is no uniform interface between reference arrays and primitive arrays

elect · Answer

I couldnt find anything else at the moment

elect · Answer

or

diesieben07 · Answer

Yeah I don t think there is except checking for every type of primitive array manually

elect · Answer

what shall I pass if I want to know its length `java lang reflect Array getLength `

diesieben07 · Answer

Yes and you pass in the array

elect · Answer

how from `KProperty1`

elect · Answer

I tried `this` and many others but it always throws exc

diesieben07 · Answer

``` val array = property get lt instance to get property from gt val length = java lang reflect Array getLength array ```

elect · Answer

I keep getting gt Caused by java lang IllegalAccessException class kotlin reflect jvm internal FunctionCaller$Method cannot access a member of class vkk Test with modifiers public final

elect · Answer

here <https github com kotlin graphics vkk blob array src main kotlin vkk util kt L382>

diesieben07 · Answer

Sorry I have no idea about that Could be different classloaders Looks like a very strange error

elect · Answer

I ll ask on SO

elect · Answer

thanks for your help so far