org.wartremover.warts.FinalVal.scala Maven / Gradle / Ivy
package org.wartremover
package warts
object FinalVal extends WartTraverser {
def apply(u: WartUniverse): u.Traverser = {
new u.Traverser(this) {
import q.reflect.*
override def traverseTree(tree: Tree)(owner: Symbol): Unit = {
tree match {
case t if hasWartAnnotation(t) =>
case t: ValDef if t.symbol.flags.is(Flags.Final) =>
t.tpt.tpe match {
case _: ConstantType =>
error(tree.pos, "final val is disabled - use non-final val or final def or add type ascription")
case _ =>
super.traverseTree(tree)(owner)
}
case _ =>
super.traverseTree(tree)(owner)
}
}
}
}
}