gistfile1.txt

interface GlBufEco {
    val buffers: GlBuffers
}

interface GlBufE

fun <E> Enum<E>.bind(target: BufferTarget) where E : Enum<E>, E : GlBufE = (Enum.Companion as GlBufEco).buffers[ordinal].bind(target)

enum class Buffer : GlBufE {
        A;

        companion object : GlBufEco {
            override val buffers = GlBuffers<Buffer>()
        }
    }
}