orc.runtime.sites.core
Class Head

java.lang.Object
  orc.runtime.values.Value
      orc.runtime.sites.Site
          orc.runtime.sites.EvalSite
              orc.runtime.sites.core.Head

All Implemented Interfaces:

Callable, Future

public class Head
extends EvalSite

Author:

dkitchin

Constructor Summary

Head()

Method Summary

Value

evaluate(Args args)

Methods inherited from class orc.runtime.sites.EvalSite

callSite

Methods inherited from class orc.runtime.sites.Site

accept, createCall

Methods inherited from class orc.runtime.values.Value

forceArg, forceCall, head, isCons, isNil, isNone, isSome, signal, tail, untag

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

Head

public Head()

Method Detail

evaluate

public Value evaluate(Args args)
               throws TokenException

Specified by:

evaluate in class EvalSite

Throws:

TokenException