dotty.tools.dotc.printing.package.scala Maven / Gradle / Ivy

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package dotty.tools.dotc

import core.StdNames.nme
import parsing.{precedence, minPrec, maxPrec, minInfixPrec}
import util.Property.Key

package object printing {

  type Precedence = Int

  val DotPrec       = parsing.maxPrec
  val AndPrec       = parsing.precedence(nme.raw.AMP)
  val OrPrec        = parsing.precedence(nme.raw.BAR)
  val InfixPrec     = parsing.minInfixPrec
  val GlobalPrec    = parsing.minPrec
  val TopLevelPrec  = parsing.minPrec - 1

  /** A property to indicate whether the compiler is currently doing -Xprint
   *
   *  -Xprint will print `sym.name` instead of `sym.originalName`
   */
  val XprintMode = new Key[Unit]

  /** @pre `nel` is non-empty list */
  private[printing] implicit class ListOps[A](val nel: List[A]) extends AnyVal {
    def intersperse(a: A): List[A] =
      nel.flatMap(a :: _ :: Nil).tail
  }
}