edu.illinois.cs.cogcomp.lbjava.IR

Class ASTNodeIterator

java.lang.Object

edu.illinois.cs.cogcomp.lbjava.IR.ASTNodeIterator

Direct Known Subclasses:

List.NodeListIterator

public class ASTNodeIterator
extends Object

Used to iterate though the children of an AST node. It is assumed that the children array never contains a null reference.

Author:

Nick Rizzolo

Field Summary

Fields

Modifier and Type	Field and Description
ASTNode[]	children The nodes iterated through by this iterator.
protected int	index Index into the children array.

Constructor Summary

Constructors

Constructor and Description
ASTNodeIterator() Initializes index, but not children.
ASTNodeIterator(int l) The children array will have the specified length.

Method Summary

Modifier and Type	Method and Description
boolean	hasNext() Determines whether there are any child nodes left to be accessed.
ASTNode	next() Returns the next child AST node.
void	reset() Restarts the iterator.

Methods inherited from class java.lang.Object

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

Field Detail

children

public ASTNode[] children

The nodes iterated through by this iterator.

index

protected int index

Index into the children array.

Constructor Detail

ASTNodeIterator

public ASTNodeIterator()

Initializes index, but not children.

ASTNodeIterator

public ASTNodeIterator(int l)

The children array will have the specified length.

Parameters:

l - The number of children to iterate through.

Method Detail

hasNext

public boolean hasNext()

Determines whether there are any child nodes left to be accessed.

Returns:

true iff there are child nodes remaining.

next

public ASTNode next()

Returns the next child AST node.

Returns:

The next child AST node.

reset

public void reset()

Restarts the iterator.