orc.runtime.sites.core
Class Let

java.lang.Object
  orc.runtime.values.Value
      orc.runtime.sites.Site
          orc.runtime.sites.core.Let

All Implemented Interfaces:

Callable

public class Let
extends Site

Implements the built-in "let" site

Author:

wcook

Field Summary

Fields inherited from class orc.runtime.values.Value

futureNotReady

Constructor Summary

Let()

Method Summary

void	callSite(Args args, Token caller) Outputs a single value or creates a tuple.
static java.lang.Object	condense(java.lang.Object[] values) Classic 'let' functionality.
Type	type()

Methods inherited from class orc.runtime.sites.Site

accept, createCall, enterTransaction

Methods inherited from class orc.runtime.values.Value

forceArg, forceCall, signal

Methods inherited from class java.lang.Object

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

Constructor Detail

Let

public Let()

Method Detail

callSite

public void callSite(Args args,
                     Token caller)

Outputs a single value or creates a tuple.

Specified by:

callSite in class Site

Parameters:

args - list of argument values

caller - where the result should be sent

type

public Type type()
          throws TypeException

Overrides:

type in class Site

Throws:

TypeException

condense

public static java.lang.Object condense(java.lang.Object[] values)

Classic 'let' functionality. Reduce a list of argument values into a single value as follows: Zero arguments: return a signal One argument: return that value Two or more arguments: return a tuple of values