orc.runtime.values
Class Closure

java.lang.Object
  orc.runtime.values.Value
      orc.runtime.values.Closure

All Implemented Interfaces:

Callable

public class Closure
extends Value
implements Callable

Represents a standard closure: a function defined in an environment. Note that a closure is not necessarily a resolved value, since it may contain unbound variables, and therefore cannot be used in arg position until all such variables become bound.

Author:

wcook, dkitchin

Field Summary

Fields inherited from class orc.runtime.values.Value

futureNotReady

Constructor Summary

Closure(int arity, Node body, Env env)

Method Summary

<E> E	accept(Visitor<E> visitor)
void	createCall(Token t, java.util.List<java.lang.Object> args, Node nextNode) Create a call to a callable value
void	setEnvironment(Env env)

Methods inherited from class orc.runtime.values.Value

forceArg, forceCall, isNone, isSome, signal, untag

Methods inherited from class java.lang.Object

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

Constructor Detail

Closure

public Closure(int arity,
               Node body,
               Env env)

Method Detail

createCall

public void createCall(Token t,
                       java.util.List<java.lang.Object> args,
                       Node nextNode)
                throws ArityMismatchException

Description copied from interface: Callable

Create a call to a callable value

Specified by:

createCall in interface Callable

Parameters:

t - token for which the call is being made: points to the call node

args - argument list

nextNode - next node after the call node, to which the result should be sent

Throws:

ArityMismatchException

setEnvironment

public void setEnvironment(Env env)

accept

public <E> E accept(Visitor<E> visitor)

Overrides:

accept in class Value