antlr
Class TokenQueue

java.lang.Object
  |
  +--antlr.TokenQueue

class TokenQueue

extends Object

A private circular buffer object used by the token buffer

Field Summary

private Token[]	buffer
protected int	nbrEntries
private int	offset
private int	sizeLessOne

Constructor Summary

TokenQueue(int minSize)

Method Summary

void	append(Token tok) Add token to end of the queue
Token	elementAt(int idx) Fetch a token from the queue by index
private void	expand() Expand the token buffer by doubling its capacity
private void	init(int size) Initialize the queue.
void	removeFirst() Remove token from front of queue

Methods inherited from class java.lang.Object

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

Field Detail

buffer

private Token[] buffer

sizeLessOne

private int sizeLessOne

offset

private int offset

nbrEntries

protected int nbrEntries

Constructor Detail

TokenQueue

public TokenQueue(int minSize)

Method Detail

append

public final void append(Token tok)

Add token to end of the queue

Parameters:

tok - The token to add

elementAt

public final Token elementAt(int idx)

Fetch a token from the queue by index

Parameters:

idx - The index of the token to fetch, where zero is the token at the front of the queue

expand

private final void expand()

Expand the token buffer by doubling its capacity

init

private final void init(int size)

Initialize the queue.

Parameters:

size - The initial size of the queue

removeFirst

public final void removeFirst()

Remove token from front of queue