Package eu.bandm.tools.lexic

Class LookaheadTokenSourceProxy<D,T,L>

java.lang.Object

eu.bandm.tools.lexic.LookaheadTokenSourceProxy<D,T,L>

All Implemented Interfaces:

LookaheadTokenSource<D,T,L>, Closeable, AutoCloseable, Supplier<Token<D,T>>

public class LookaheadTokenSourceProxy<D,T,L>
extends Object
implements LookaheadTokenSource<D,T,L>

Constructor Summary

Constructors

Constructor	Description
LookaheadTokenSourceProxy()
LookaheadTokenSourceProxy(@Opt LookaheadTokenSource<D,T,L> source)

Method Summary

Modifier and Type	Method	Description
void	close()	Closes this source and releases any resources associated with it.
Token<D,T>	get()
L	relinquishLookahead()	Clear the internal lookahead buffer and return its contents.
void	setSource(@Opt LookaheadTokenSource<D,T,L> source)
void	takeOverLookahead(L lookaheadData)	Fill the internal lookahead buffer with data.

Methods inherited from class java.lang.Object

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

Methods inherited from interface eu.bandm.tools.lexic.LookaheadTokenSource

forgetLookahead, removeTypes, removeTypes

Constructor Details

LookaheadTokenSourceProxy

public LookaheadTokenSourceProxy()

LookaheadTokenSourceProxy

public LookaheadTokenSourceProxy(@Opt
 @Opt LookaheadTokenSource<D,T,L> source)

Method Details

setSource

public void setSource(@Opt
 @Opt LookaheadTokenSource<D,T,L> source)

get

public Token<D,T> get()

Specified by:

get in interface Supplier<D>

relinquishLookahead

public L relinquishLookahead()

Clear the internal lookahead buffer and return its contents.

Specified by:

relinquishLookahead in interface LookaheadTokenSource<D,T,L>

Returns:

the former contents of the internal lookahead buffer

takeOverLookahead

public void takeOverLookahead(L lookaheadData)

Fill the internal lookahead buffer with data.

The buffer must be empty before this method is invoked. After return, the given data will be consumed from the buffer before the usual input is considered.

Specified by:

takeOverLookahead in interface LookaheadTokenSource<D,T,L>

Parameters:

lookaheadData - the lookahead data to fill in

close

public void close()

Closes this source and releases any resources associated with it.

The default implementation does nothing.

Specified by:

close in interface AutoCloseable

Specified by:

close in interface Closeable

Specified by:

close in interface LookaheadTokenSource<D,T,L>