com.russell_allen.smallworld
Class SmallInterpreter

java.lang.Object
  com.russell_allen.smallworld.SmallInterpreter

 class SmallInterpreter
extends java.lang.Object

I do all of the heavy lifting, including (currently) the loading and saving of an image to file. I hold references to specific objects in the system: nil, true, false, Array, Block, Context, Integer and the numbers 0-9. From these references, you can get to Class, which holds references to all the classes in the system in Class#classes.

Nested Class Summary

private class

SmallInterpreter.ActionThread

Field Summary

SmallObject	ArrayClass
SmallObject	BlockClass
SmallObject	ContextClass
SmallObject	falseObject
static int	imageFormatVersion
SmallObject	IntegerClass
SmallObject	nilObject
SmallInt[]	smallInts
SmallObject	trueObject

Constructor Summary

SmallInterpreter()

Method Summary

(package private) SmallObject	buildContext(SmallObject oldContext, SmallObject arguments, SmallObject method)
(package private) SmallObject	execute(SmallObject context, java.lang.Thread myThread, java.lang.Thread parentThread)
boolean	loadImageFromInputStream(java.io.InputStream name)
private SmallObject	methodLookup(SmallObject receiver, SmallByteArray messageSelector, SmallObject context, SmallObject arguments)
(package private) SmallInt	newInteger(int val)
private boolean	saveImageToOutputStream(java.io.OutputStream name)

Methods inherited from class java.lang.Object

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

Field Detail

imageFormatVersion

public static final int imageFormatVersion

See Also:

Constant Field Values

nilObject

public SmallObject nilObject

trueObject

public SmallObject trueObject

falseObject

public SmallObject falseObject

smallInts

public SmallInt[] smallInts

ArrayClass

public SmallObject ArrayClass

BlockClass

public SmallObject BlockClass

ContextClass

public SmallObject ContextClass

IntegerClass

public SmallObject IntegerClass

Constructor Detail

SmallInterpreter

SmallInterpreter()

Method Detail

loadImageFromInputStream

public boolean loadImageFromInputStream(java.io.InputStream name)

saveImageToOutputStream

private boolean saveImageToOutputStream(java.io.OutputStream name)

newInteger

SmallInt newInteger(int val)

methodLookup

private SmallObject methodLookup(SmallObject receiver,
                                 SmallByteArray messageSelector,
                                 SmallObject context,
                                 SmallObject arguments)
                          throws SmallException

Throws:

SmallException

buildContext

SmallObject buildContext(SmallObject oldContext,
                         SmallObject arguments,
                         SmallObject method)

execute

SmallObject execute(SmallObject context,
                    java.lang.Thread myThread,
                    java.lang.Thread parentThread)
              throws SmallException

Throws:

SmallException