com.voytechs.jnetstream.npl
Class Context

java.lang.Object
  com.voytechs.jnetstream.npl.Context

public class Context
extends java.lang.Object

Field Summary

protected java.lang.Object

userData

Constructor Summary

Context(Context parent, java.util.Map perm, SymTable sym)
Initializes the Context object.

Method Summary

java.lang.String	getName()
Context	getParent()
Primitive	getPrimitive(java.lang.String name) Locates the named primitive in the context and returns it.
Primitive[]	getPrimitiveArray(java.lang.String name) Locates the named primitive in the context and returns it.
Context	getRoot()
SymTable	getSymTable()
java.lang.Object	getUserData()
static void	main(java.lang.String[] args) Test function for Context
Primitive	removePrimitive(java.lang.String name)
void	setPrimitive(java.lang.String name, Primitive primitive)
void	setPrimitiveArray(java.lang.String name, Primitive[] primitive)
void	setUserData(java.lang.Object userData)

Methods inherited from class java.lang.Object

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

Field Detail

userData

protected java.lang.Object userData

Constructor Detail

Context

public Context(Context parent,
               java.util.Map perm,
               SymTable sym)

Initializes the Context object. Every context object gets its name from the SymTable object. Also this context object registers itself with the sym object using SymTable's setContext() call. perm table is a table of persistent properties the exist.

Parameters:

parent - The parent Context object to which we belong to.

perm - The permanent table of properties in form of Primitives.

sym - The SymTable for this Statement node.

Method Detail

setUserData

public void setUserData(java.lang.Object userData)

getUserData

public java.lang.Object getUserData()

getRoot

public Context getRoot()

getParent

public Context getParent()

getName

public java.lang.String getName()

setPrimitive

public void setPrimitive(java.lang.String name,
                         Primitive primitive)

setPrimitiveArray

public void setPrimitiveArray(java.lang.String name,
                              Primitive[] primitive)

removePrimitive

public Primitive removePrimitive(java.lang.String name)

getSymTable

public SymTable getSymTable()

getPrimitive

public Primitive getPrimitive(java.lang.String name)

Locates the named primitive in the context and returns it.

Parameters:

name - Name of the Primitive element to return.

Returns:

Primitive found or null.

getPrimitiveArray

public Primitive[] getPrimitiveArray(java.lang.String name)

Locates the named primitive in the context and returns it.

Parameters:

name - Name of the Primitive element to return.

Returns:

Primitive found or null.

main

public static void main(java.lang.String[] args)

Test function for Context

Parameters:

args - command line arguments