So now I've got:
```
...
var value: Any = default....
# announcementsr
Ruckus
05/21/2018, 7:09 PMSo now I've got:
Copy code
...
var value: Any = default.validate()
set(value) {
field = value.validate()
}
private fun Any.validate() = if (type.valid(this)) this else error("invalid value")
...