org.wartremover.warts.ArrayEquals.scala Maven / Gradle / Ivy
package org.wartremover
package warts
import reflect.NameTransformer
object ArrayEquals extends WartTraverser {
def apply(u: WartUniverse): u.Traverser = {
import u.universe._
val Equals = TermName(NameTransformer.encode("=="))
new u.Traverser {
override def traverse(tree: Tree): Unit = {
tree match {
// Ignore trees marked by SuppressWarnings
case t if hasWartAnnotation(u)(t) =>
case Apply(Select(array, Equals), Seq(Literal(Constant(null)))) =>
// https://github.com/wartremover/wartremover/issues/448
super.traverse(tree)
case Apply(Select(array, Equals), _)
if (array.tpe.typeSymbol.fullName == "scala.Array" || array.tpe <:< typeOf[
Iterator[Any]
]) && !isSynthetic(u)(tree) =>
error(u)(tree.pos, "== is disabled, use sameElements instead")
super.traverse(tree)
case _ =>
super.traverse(tree)
}
}
}
}
}