scala.meta.internal.parsers.TokenClassifiers.scala Maven / Gradle / Ivy

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Scalameta APIs for parsing and their baseline implementation

There is a newer version: 4.12.2

package scala.meta.internal.parsers

import scala.meta.classifiers._
import scala.meta.internal.classifiers.classifier
import scala.meta.tokens.Token
import scala.meta.tokens.Token._

@classifier
trait MultilineComment {
  def unapply(token: Token): Boolean =
    token.is[Comment] && AsMultilineComment.isMultiline(token)
}

object AsMultilineComment {
  def isMultiline(token: Token): Boolean = {
    val pos = token.pos
    pos.endLine > pos.startLine
  }

  def unapply(token: Token): Option[Comment] =
    token match {
      case c: Comment if isMultiline(token) => Some(c)
      case _ => None
    }
}