Pattern: Use of var instead of val
Issue: -
Reports var declarations (locally-scoped variables) that could be val, as they are not re-assigned. val declarations are assign-once (read-only), which makes understanding the current state easier.
Example of incorrect code:
fun example() {
var i = 1 // violation: this variable is never re-assigned
val j = i + 1
}Example of correct code:
fun example() {
val i = 1
val j = i + 1
}