Generic Constraints: Lower Bound

christophels November 22, 2019, 9:44am 11

Is this kind of problem could be solved with union type ?

abstract fun or(other: Optional<U>): Optional<T|U>

1 Like

Topic		Replies	Views
Few Questions Related to Generics	3	805	July 23, 2013
Generics upper bound type inference not working Language Design	3	2293	August 26, 2020
Generics question	13	2701	July 24, 2015
Covariance and generic constraints in Kotlin	2	3421	April 25, 2019
Generic type bound on extension method silently coerced to Any Language Design	2	2685	February 14, 2016