Hi all, sorry if this isn't the place for this, I tried in #reflect but didn't get any responses 😞 A couple of questions with respect to reflection: 1. Is there an equivalent in Kotlin Reflect to Java's 

isInterface

 ? I see we have 

isAbstract

 , 

isOpen

 , etc, but I haven't found anything for interface. 2. Follow up question; is 

MyClass::class.java.interfaces

 the recommended way to get the interfaces implemented by a given class?

1. Looks like the only way is to use java API (I didn't found any kotlin-reflect way to do that). The first link in google shows the same answer https://stackoverflow.com/questions/48568268/how-to-distinguish-between-a-class-and-an-interface-in-kotlin-using-kclass-refle

Is it fair to say that a class without constructors must be an interface? If so:

val KClass<*>.isInterface get() = constructors.isEmpty()

should work.

@Rob Elliot from the answer on stackoverflow

Please note that the constructors counting solution might not be very precise for general purpose use. For example, Kotlin package facade classes do not have any constructors either, but they are not interfaces (UPD: and their constructors cannot even be reflected with 

kotlin-reflect

, just as those of anonymous classes, 

KFunction

 and maybe more).

Cool, thanks, should have followed the link first edit - drat, if I’d only clicked before writing this I could have blamed it on stackoverflow being down for maintenance…

Thanks @Ivan Pavlov, only problem with the supertypes approach is that you also get

Any