org.wartremover.warts.ToString.scala Maven / Gradle / Ivy
package org.wartremover
package warts
object ToString 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 Apply(Select(lhs, "toString"), Nil) if !isPrimitive(lhs.tpe) && !(lhs.tpe <:< TypeRepr.of[String]) =>
val x = lhs.symbol.declaredMethod("toString")
val parent = lhs.tpe.baseClasses.head
val name = if (parent.flags.is(Flags.Module)) {
"object " + parent.name.dropRight(1)
} else {
"class " + parent.name
}
error(tree.pos, s"${name} does not override toString and automatic toString is disabled")
case _ =>
super.traverseTree(tree)(owner)
}
}
}
}
}