Given such a data structure ```data class X(val name : String) data class Y(val x1: X, x2: X, x3 :X,...

# arrow

[Fudge]

Given such a data structure

data class X(val name : String)
data class Y(val x1: X, x2: X, x3 :X, x4: X)

Is there an easy way to change the name value of all ocurrences of X instances in Y? Using optics perhaps?
Something like this:

val y = Y(...)
val newY = changeAllNames(y) {it + "foo"}

[raulraja]

Not close to an editor but with lenses it may be something like…

X.run {
 (x1 compose x2 compose...).modify(..) { s ->
   s.toUpperCase()
 }
}