net.sourceforge.nrl.parser.model
Class VariableContext

java.lang.Object
  net.sourceforge.nrl.parser.model.VariableContext

public class VariableContext
extends Object

An implementation of a stack-based variable context that is used throughout the parser for processing model references.

The variable context consists of a number of "frames":

• Additional frames required for block-type statements like "if". The frames can be pushed and popped as necessary.

Constructor Summary

VariableContext()

Method Summary

void	bindToCurrentFrame(IVariable var)
boolean	isAlreadyDeclared(String varName)
IVariable	lookup(String name)
void	popFrame()
void	pushFrame()

Methods inherited from class java.lang.Object

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

Constructor Detail

VariableContext

public VariableContext()

Method Detail

bindToCurrentFrame

public void bindToCurrentFrame(IVariable var)

isAlreadyDeclared

public boolean isAlreadyDeclared(String varName)

lookup

public IVariable lookup(String name)

pushFrame

public void pushFrame()

popFrame

public void popFrame()