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package munit

import java.lang.annotation.Annotation
import java.io.File
import scala.runtime.Statics
import munit.internal.MacroCompat

object Location extends MacroCompat.LocationMacro {
  def empty: Location = new Location("", 0)
}

final class Location(
    val path: String,
    val line: Int
) extends Annotation
    with Serializable {
  def filename: String = {
    val sep = path.lastIndexOf(File.separatorChar)
    if (sep < 0) path
    else path.substring(math.min(sep + 1, path.length() - 1))
  }
  override def annotationType(): Class[Annotation] = {
    classOf[Annotation]
  }
  override def toString: String = {
    path + ":" + line
  }
  override def equals(obj: Any): Boolean = {
    obj.asInstanceOf[AnyRef].eq(this) || (obj match {
      case l: Location =>
        l.path == path &&
          l.line == line
      case _ =>
        false
    })
  }
  override def hashCode(): Int = {
    var acc = -889275714
    acc = Statics.mix(acc, Statics.anyHash(path))
    acc = Statics.mix(acc, line)
    acc
  }
}