Scala example source code file (ExprUtils.scala)

This example Scala source code file (ExprUtils.scala) is included in my "Source Code Warehouse" project. The intent of this project is to help you more easily find Scala source code examples by using tags.

All credit for the original source code belongs to scala-lang.org; I'm just trying to make examples easier to find. (For my Scala work, see my Scala examples and tutorials.)

Scala tags/keywords

boolean, byte, char, double, expr, float, int, short, string, use

The ExprUtils.scala Scala example source code

package scala
package reflect
package macros

/**
 * <span class="badge badge-red" style="float: right;">EXPERIMENTAL</span>
 *
 * A slice of [[scala.reflect.macros.blackbox.Context the Scala macros context]] that defines shorthands for the
 *  most common `Expr`-creating functions.
 */
trait ExprUtils {
  self: blackbox.Context =>

  /** Shorthand for `Literal(Constant(null))` in the underlying `universe`. */
  @deprecated("Use quasiquotes instead", "2.11.0")
  def literalNull: Expr[Null]

  /** Shorthand for `Literal(Constant(()))` in the underlying `universe`. */
  @deprecated("Use quasiquotes instead", "2.11.0")
  def literalUnit: Expr[Unit]

  /** Shorthand for `Literal(Constant(true))` in the underlying `universe`. */
  @deprecated("Use quasiquotes instead", "2.11.0")
  def literalTrue: Expr[Boolean]

  /** Shorthand for `Literal(Constant(false))` in the underlying `universe`. */
  @deprecated("Use quasiquotes instead", "2.11.0")
  def literalFalse: Expr[Boolean]

  /** Shorthand for `Literal(Constant(x: Boolean))` in the underlying `universe`. */
  @deprecated("Use quasiquotes instead", "2.11.0")
  def literal(x: Boolean): Expr[Boolean]

  /** Shorthand for `Literal(Constant(x: Byte))` in the underlying `universe`. */
  @deprecated("Use quasiquotes instead", "2.11.0")
  def literal(x: Byte): Expr[Byte]

  /** Shorthand for `Literal(Constant(x: Short))` in the underlying `universe`. */
  @deprecated("Use quasiquotes instead", "2.11.0")
  def literal(x: Short): Expr[Short]

  /** Shorthand for `Literal(Constant(x: Int))` in the underlying `universe`. */
  @deprecated("Use quasiquotes instead", "2.11.0")
  def literal(x: Int): Expr[Int]

  /** Shorthand for `Literal(Constant(x: Long))` in the underlying `universe`. */
  @deprecated("Use quasiquotes instead", "2.11.0")
  def literal(x: Long): Expr[Long]

  /** Shorthand for `Literal(Constant(x: Float))` in the underlying `universe`. */
  @deprecated("Use quasiquotes instead", "2.11.0")
  def literal(x: Float): Expr[Float]

  /** Shorthand for `Literal(Constant(x: Double))` in the underlying `universe`. */
  @deprecated("Use quasiquotes instead", "2.11.0")
  def literal(x: Double): Expr[Double]

  /** Shorthand for `Literal(Constant(x: String))` in the underlying `universe`. */
  @deprecated("Use quasiquotes instead", "2.11.0")
  def literal(x: String): Expr[String]

  /** Shorthand for `Literal(Constant(x: Char))` in the underlying `universe`. */
  @deprecated("Use quasiquotes instead", "2.11.0")
  def literal(x: Char): Expr[Char]
}