com.oracle.js.parser

Class TokenStream

java.lang.Object

com.oracle.js.parser.TokenStream

public class TokenStream
extends Object

Handles streaming of tokens between lexer and parser.

Constructor Summary

Constructors

Constructor and Description
TokenStream() Constructor.

Method Summary

Modifier and Type	Method and Description
void	commit(int k) Advances the base of the stream.
long	get(int k) Get the kth token descriptor from the stream.
void	grow() Grow the buffer to accommodate more token descriptors.
boolean	isEmpty() Test to see if stream is empty.
boolean	isFull() Test to see if stream is full.
int	last() Get the index of the last token in the stream.
void	put(long token) Put a token descriptor to the stream.

Methods inherited from class java.lang.Object

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

Constructor Detail

TokenStream

public TokenStream()

Constructor.

Method Detail

isEmpty

public boolean isEmpty()

Test to see if stream is empty.

Returns:

True if stream is empty.

isFull

public boolean isFull()

Test to see if stream is full.

Returns:

True if stream is full.

last

public int last()

Get the index of the last token in the stream.

Returns:

Index of last buffered token in the stream.

put

public void put(long token)

Put a token descriptor to the stream.

Parameters:

token - Token descriptor to add.

get

public long get(int k)

Get the kth token descriptor from the stream.

Parameters:

k - index

Returns:

Token descriptor.

commit

public void commit(int k)

Advances the base of the stream.

Parameters:

k - Position of token to be the new base.

grow

public void grow()

Grow the buffer to accommodate more token descriptors.