question on Kotlin generics if anyone thinks they might be able to help! <https://stackoverflow.com/...

# announcements

[Henry]

question on Kotlin generics if anyone thinks they might be able to help! https://stackoverflow.com/questions/63992988/instantiating-classes-from-non-reified-type-parameters

[ephemient]

JVM-specific: runtime types of objects are erased, but generic types on classes aren't

[ephemient]

https://pl.kotl.in/BzpzCAt6l

[Henry]

interesting

[Henry]

sadly that link only shows me a hello world

[ephemient]

strange, works for me, but let me copy paste the code here:

[Henry]

thanks

[ephemient]

Untitled

Untitled

[ephemient]

outputs:

class java.lang.Integer
class java.lang.String
interface Foo
class Bar

[Henry]

ah I hadn’t even thought to use reflection to get a reference to the class of the type parameter!

[Henry]

that makes a lot of sense

[ephemient]

it's definitely not foolproof. if you declare a generic subclass, this will fail

[ephemient]

but in some restricted cases, it's useful

[Henry]

indeed

[Henry]

this use case is specific enough that it should be fine

[Henry]

would you like the SO points for answering my question or are you happy or me to post your solution btw?

[Henry]

thanks again

[ephemient]

I haven't used SO in ages but I logged in to post for you 🙂