程序包 org.antlr.analysis

类 LookaheadSet

java.lang.Object

org.antlr.analysis.LookaheadSet

public class LookaheadSet
extends java.lang.Object

An LL(1) lookahead set; contains a set of token types and a "hasEOF" condition when the set contains EOF. Since EOF is -1 everywhere and -1 cannot be stored in my BitSet, I set a condition here. There may be other reasons in the future to abstract a LookaheadSet over a raw BitSet.

字段概要

字段

修饰符和类型	字段	说明
IntervalSet	tokenTypeSet

构造器概要

构造器

构造器	说明
LookaheadSet()
LookaheadSet(int atom)
LookaheadSet(LookaheadSet other)
LookaheadSet(IntSet s)

方法概要

修饰符和类型	方法	说明
boolean	equals(java.lang.Object other)
int	hashCode()
LookaheadSet	intersection(LookaheadSet s)
boolean	isNil()
boolean	member(int a)
LookaheadSet	or(LookaheadSet other)
void	orInPlace(LookaheadSet other)
void	remove(int a)
LookaheadSet	subtract(LookaheadSet other)
java.lang.String	toString()
java.lang.String	toString(Grammar g)

从类继承的方法 java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

字段详细资料

tokenTypeSet

public IntervalSet tokenTypeSet

构造器详细资料

LookaheadSet

public LookaheadSet()

LookaheadSet

public LookaheadSet(IntSet s)

LookaheadSet

public LookaheadSet(int atom)

LookaheadSet

public LookaheadSet(LookaheadSet other)

方法详细资料

orInPlace

public void orInPlace(LookaheadSet other)

or

public LookaheadSet or(LookaheadSet other)

subtract

public LookaheadSet subtract(LookaheadSet other)

member

public boolean member(int a)

intersection

public LookaheadSet intersection(LookaheadSet s)

isNil

public boolean isNil()

remove

public void remove(int a)

hashCode

public int hashCode()

覆盖:

hashCode 在类中 java.lang.Object

equals

public boolean equals(java.lang.Object other)

覆盖:

equals 在类中 java.lang.Object

toString

public java.lang.String toString(Grammar g)

toString

public java.lang.String toString()

覆盖:

toString 在类中 java.lang.Object