abstractsyntax.scala

来自「JAVA 语言的函数式编程扩展」· SCALA 代码 · 共 32 行

/*                     __                                               *\
**     ________ ___   / /  ___     Scala API                            **
**    / __/ __// _ | / /  / _ |    (c) 2006-2007, LAMP/EPFL             **
**  __\ \/ /__/ __ |/ /__/ __ |                                         **
** /____/\___/_/ |_/____/_/ | |                                         **
**                          |/                                          **
\*                                                                      */

package scala.util.parsing.ast

import scala.util.parsing.input.Positional

/** This component provides the core abstractions for representing an Abstract Syntax Tree
 *
 * @author Adriaan Moors 
 */
trait AbstractSyntax {
  /** The base class for elements of the abstract syntax tree.
   */
  trait Element extends Positional
  
  /** The base class for elements in the AST that represent names {@see Binders}.
   */
  trait NameElement extends Element {
    def name: String
    override def equals(that: Any): Boolean = that match {
      case n: NameElement => n.name == name
      case _ => false
    }
  }
}