org.wartremover.contrib.warts.SomeApply.scala Maven / Gradle / Ivy

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package org.wartremover
package contrib.warts

object SomeApply extends WartTraverser {
  def apply(u: WartUniverse): u.Traverser = {
    import u.universe._

    val scala = TermName("scala")
    val some = TermName("Some")
    val app = TermName("apply")

    new u.Traverser {
      override def traverse(tree: Tree): Unit = {
        tree match {
          // Ignore trees marked by SuppressWarnings
          case t if hasWartAnnotation(u)(t) =>

          case Apply(TypeApply(Select(Select(Ident(pkg), obj), method), _), _)
              if pkg == scala && obj == some && method == app =>
            error(u)(tree.pos, "Some.apply is disabled - use Option.apply instead")

          case v =>
            super.traverse(tree)
        }
      }
    }
  }
}