jfun.parsec
Class IsToken

java.lang.Object
  jfun.parsec.IsToken

All Implemented Interfaces:

java.io.Serializable, FromToken<Tok>

public final class IsToken
extends java.lang.Object
implements FromToken<Tok>

Tests if the token is the same token expected.

Author:

Ben Yu 2004-11-14

See Also:

Serialized Form

Method Summary

Tok	fromToken(Tok tok) return the token if the token is the same object that we are expecting.
static FromToken<Tok>	instance(java.lang.Object t) Creates a FromToken instance using the given expected token t.

Methods inherited from class java.lang.Object

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

Method Detail

fromToken

public Tok fromToken(Tok tok)

return the token if the token is the same object that we are expecting. null otherwise.

Specified by:

fromToken in interface FromToken<Tok>

Parameters:

tok - the token

Returns:

the transformed Object.

instance

public static FromToken<Tok> instance(java.lang.Object t)

Creates a FromToken instance using the given expected token t.

Parameters:

t - the expected token object.

Returns:

the FromToken instance.